Indication device

Abstract

To provide a display including conductive patterns embodied as an antenna.SOLUTION: A display according to the present invention has a display layer including a plurality of light-emitting devices arranged on a substrate, and a display panel including a sensor electrode layer arranged on the display layer. The sensor electrode layer includes: a sensor area including a plurality of sensor electrodes arranged on the display layer, and a plurality of first conductive patterns separated from the sensor electrodes and used as an antenna; and a sensor peripheral area including a plurality of sensor wires connected with the sensor electrodes.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a display device, and more particularly to a display device including a conductive pattern embodied as an antenna. [Background technology]

[0002] 2. Description of the Related Art As the information society develops, the demand for display devices for displaying images is increasing in various forms. For example, display devices are applied to a variety of electronic devices such as smartphones, digital cameras, notebook computers, navigation systems, and smart televisions. The display device may include an antenna for transmitting and receiving radio electromagnetic waves for wireless communication. For example, the display device may include an antenna for fourth generation (4G) mobile communications such as LTE (Long Term Evolution) and fifth generation (5G) mobile communications, as well as for short-range communications such as RFID (Radio Frequency Identification) tags.

[0003] Therefore, the frequency bands of wireless electromagnetic waves transmitted and received are diversified depending on the communication technology, and the shape or length of the antenna may change depending on the frequency band of the wireless electromagnetic waves. Therefore, display devices require antennas that correspond to the frequency bands of radio electromagnetic waves, and in recent years, research and development of display panels that include conductive patterns to embody these antennas has become an issue. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-221344 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made in view of the above-mentioned problems with the conventional display devices, and an object of the present invention is to provide a display device including a conductive pattern embodied as an antenna. [Means for solving the problem]

[0006] A display device according to the present invention, which has been made to achieve the above object, includes a display layer including a plurality of light-emitting elements arranged on a substrate, and a display panel including a sensor electrode layer arranged on the display layer, wherein the sensor electrode layer includes a plurality of sensor electrodes arranged on the display layer, a sensor region including a plurality of first conductive patterns spaced apart from the sensor electrodes and used as antennas, and a sensor peripheral region including a plurality of sensor wirings connected to the sensor electrodes, and each of the plurality of first conductive patterns is surrounded by one of the plurality of sensor electrodes. do. [Effects of the Invention]

[0007] According to the display device of the present invention, the first conductive pattern arranged in the sensor peripheral region of the sensor electrode layer can be used as a patch antenna for 5G mobile communication or an antenna for an RFID tag for short-range communication. As a result, although the wavelength of the electromagnetic waves transmitted to or received by the first conductive pattern in 5G mobile communications is short, the electromagnetic waves do not need to pass through the metal layer of the display panel, and can therefore be radiated stably to the top of the display device.

[0008] In addition, by disposing the antenna region in the pad region, the area of ​​the antenna region becomes larger than when the antenna region is disposed in the sensor peripheral region, and therefore the first conductive pattern of the antenna region can be designed more freely. In addition, by forming a second conductive pattern that overlaps the first conductive pattern in the thickness direction of the display panel and to which a ground voltage is applied, a patch antenna for 5G mobile communication can be implemented using the first conductive pattern. In addition, by forming a second conductive pattern that overlaps the first conductive pattern in the thickness direction of the display panel and to which a ground voltage is applied, it is possible to reduce or prevent the influence of electromagnetic waves emitted from the first conductive pattern on the light-emitting elements of the display layer.

[0009] In addition, since the first and second conductive patterns for realizing the antenna can be formed in the same layer as the sensor electrode of the sensor electrode layer using the same material, there is an advantage that a separate process for forming the first and second conductive patterns in the antenna region is not required. In addition, since the first conductive pattern used as an antenna is formed instead of the dummy pattern formed to reduce the parasitic capacitance between the second electrode of the light emitting element layer and the sensor electrode (driving electrode and sensing electrode), there is an advantage that a separate process for forming the first conductive pattern in the antenna region is not required.

[0010] Furthermore, since the guard pattern is disposed between the sensor electrode (driving electrode or sensing electrode) and the first conductive pattern, the guard pattern can block the influence of electromagnetic waves from the first conductive pattern on the sensor electrode (driving electrode or sensing electrode). Furthermore, the first conductive pattern formed in the remaining area of ​​the wiring area surrounding the through-hole penetrating the display panel can be used as an antenna. In addition, since the first and second conductive patterns for realizing the antenna can be formed in the same layer and with the same material as the electrodes of the display layer, there is an advantage that a separate process for forming the first and second conductive patterns in the antenna region is not required.

[0011] In addition, when the display panel is embodied as a transparent display panel including a transmissive portion, or when the display panel overlaps with a sensor device disposed on the underside of the display panel, the first conductive pattern formed on the transmissive portion of the display panel can be used as an antenna. In addition, when the display panel includes a top surface and at least one side surface extending from the top surface, the first conductive pattern formed on the at least one side surface can be used as an antenna.

[0012] Furthermore, when the sensor region is not arranged on at least one side portion, the area of ​​the antenna region is larger than when the sensor region is arranged on at least one side portion, and therefore the first conductive pattern of the antenna region can be designed more freely. In addition, in order to expand the design area of ​​the antenna region in at least one side portion, a sensor electrode layer is not arranged and only an antenna layer is arranged, so in this case, a pressure sensor for detecting a user's touch input or user pressure can be arranged in place of the sensor electrode layer in at least one side portion. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a schematic perspective view showing a display device according to an embodiment of the present invention; [Figure 2] 1 is a schematic exploded perspective view showing a display device according to an embodiment of the present invention; [Figure 3] 1 is a block diagram showing a schematic configuration of a display device according to an embodiment of the present invention. [Figure 4] 1 is a schematic plan view showing a display panel according to an embodiment of the present invention; [Figure 5] 5 is a schematic side view showing an example of the display panel of FIG. 4. [Figure 6] 1 is a schematic plan view showing a display panel according to an embodiment of the present invention; [Figure 7] 7 is a schematic side view showing an example of the display panel of FIG. 6. [Figure 8] 1 is a plan view illustrating a display panel according to an embodiment of the present invention; [Figure 9] 9 is a schematic side view showing an example of the display panel of FIG. 8. FIG. [Figure 10] 1 is a schematic plan view showing a display panel according to an embodiment of the present invention; [Figure 11] 11 is a schematic side view showing an example of the display panel of FIG. [Figure 12] 1 is a schematic plan view showing a display panel according to an embodiment of the present invention; [Figure 13] 13 is a schematic side view showing an example of the display panel of FIG. 12. [Figure 14] 13 is a cross-sectional view showing a display area and a first antenna area of ​​a second pad area of ​​the display panel of FIG. 12. FIG. [Figure 15] 1 is a schematic plan view showing a display panel according to an embodiment of the present invention; [Figure 16] 1 is a schematic plan view showing a display panel according to an embodiment of the present invention; [Figure 17] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 18] FIG. 2 is a diagram illustrating an example of a sensor driving unit connected to a sensor electrode. [Figure 19] FIG. 19 is an enlarged plan view showing the sensor area of ​​FIG. 18 in detail. [Figure 20] FIG. 20 is an enlarged plan view showing the sensor electrodes and connection parts of FIG. 19 in detail. [Figure 21] FIG. 21 is a cross-sectional view taken along line II' in FIG. 20. [Figure 22] FIG. 18 is an enlarged plan view showing an example of the antenna area of ​​FIG. [Figure 23] 23 is an enlarged plan view showing in detail a first conductive pattern in the antenna region of FIG. 22. FIG. [Figure 24] 24 is an enlarged plan view showing in detail an intersection of the first conductive pattern of FIG. 23. FIG. [Figure 25] FIG. 25 is a cross-sectional view showing an example cut along line II-II' in FIG. 24. [Figure 26] FIG. 25 is a cross-sectional view showing an example cut along line II-II' in FIG. 24. [Figure 27] FIG. 25 is a cross-sectional view showing an example cut along line II-II' in FIG. 24. [Figure 28] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 29] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 30] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 31] 10 is a diagram showing an example of a sensor driver connected to a sensor electrode and an RF driver connected to a first conductive pattern. FIG. [Figure 32] 31 is an enlarged plan view showing the sensor electrode and the first conductive pattern in detail in FIG. 30. [Figure 33] FIG. 33 is a cross-sectional view showing an example taken along line III-III' in FIG. 32. [Figure 34] FIG. 33 is a cross-sectional view showing an example taken along line III-III' in FIG. 32. [Figure 35] FIG. 33 is a cross-sectional view showing an example taken along line III-III' in FIG. 32. [Figure 36] 31 is an enlarged plan view showing the sensor electrode and the first conductive pattern in detail in FIG. 30. [Figure 37] FIG. 37 is a cross-sectional view showing an example taken along line VV' in FIG. 36. [Figure 38] FIG. 37 is a cross-sectional view showing an example taken along line VV' in FIG. 36. [Figure 39] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 40] 10 is a diagram showing an example of a sensor driver connected to a sensor electrode and an RF driver connected to a first conductive pattern. FIG. [Figure 41] 40 is an enlarged plan view showing the sensor electrode and the first conductive pattern in detail in FIG. 39. [Figure 42] FIG. 42 is a cross-sectional view showing an example cut along line VI-VI' in FIG. 41. [Figure 43] 3A and 3B are diagrams illustrating an example of a sensor electrode, a strain gauge, and a first conductive pattern. [Figure 44] FIG. 42 is a circuit diagram showing in detail the pressure sensing unit of FIG. 41. [Figure 45] FIG. 2 is an enlarged plan view showing the sensor electrode, the pressure sensor electrode, and the first conductive pattern in detail. [Figure 46] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 47]47 is an enlarged plan view showing the sensor electrode and the first conductive pattern in detail in FIG. 46. [Figure 48] FIG. 48 is a cross-sectional view showing an example taken along line VIII-VIII′ in FIG. 47. [Figure 49] FIG. 48 is a cross-sectional view showing an example taken along line VIII-VIII′ in FIG. 47. [Figure 50] FIG. 48 is a cross-sectional view showing an example taken along line VIII-VIII′ in FIG. 47. [Figure 51] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 52] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 53] 53 is a diagram showing an example of a sensor driver connected to the sensor electrode of FIG. 52 and an RF driver connected to a first conductive pattern. FIG. [Figure 54] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 55] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 56] FIG. 56 is an enlarged plan view of part A in FIG. 55 showing the sensor electrodes and connection parts in detail. [Figure 57] FIG. 57 is a cross-sectional view showing an example taken along line IX-IX' in FIG. 56. [Figure 58] 56 is a schematic side view showing an example of the display panel of FIG. 55. [Figure 59] 3 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention; FIG. [Figure 60] FIG. 60 is an enlarged plan view showing the through-holes, dead spaces, and wiring areas of FIG. 59. [Figure 61] 61 is an enlarged plan view showing the connection portion between the drive electrodes and the drive connection wiring and the connection portion between the sensing electrodes and the sensing connection wiring in FIG. 60. FIG. [Figure 62] FIG. 62 is a cross-sectional view showing an example cut along the line XX' in FIG. 61. [Figure 63] FIG. 62 is a cross-sectional view showing an example cut along the line XX' in FIG. 61. [Figure 64] FIG. 62 is a cross-sectional view showing an example cut along the line XX' in FIG. 61. [Figure 65] 1 is a plan view showing a display layer of a display panel according to an embodiment of the present invention; [Figure 66] FIG. 66 is a plan view showing an example of a pixel in the display area of ​​FIG. 65. [Figure 67] FIG. 66 is a plan view showing another example of pixels in the display region of FIG. 65. [Figure 68] FIG. 67 is a perspective view showing the light emitting element of FIG. 66 in detail. [Figure 69] 67A and 67B are cross-sectional views showing an example cut along line XII-XII' and an example cut along line XIII-XIII' in FIG. 66. [Figure 70] 67A and 67B are cross-sectional views showing an example cut along line XII-XII' and an example cut along line XIII-XIII' in FIG. 66. [Figure 71] 67 is a cross-sectional view showing an example cut along line XII-XII' and an example cut along line XIII-XIII' in FIG. 66. [Figure 72] FIG. 66 is a plan view showing an example of a pixel in the display area of ​​FIG. 65. [Figure 73] 73 is a cross-sectional view showing an example cut along line XVII-XVII' and an example cut along line XVIII-XVIII' in FIG. 72. [Figure 74] 73 is a cross-sectional view showing an example cut along line XVII-XVII' and an example cut along line XVIII-XVIII' in FIG. 72. [Figure 75] 73 is a cross-sectional view showing an example cut along line XVII-XVII' and an example cut along line XVIII-XVIII' in FIG. 72. [Figure 76] FIG. 66 is a plan view showing an example of a pixel in the display area of ​​FIG. 65. [Figure 77] 77 is a cross-sectional view showing an example cut along line XX-XX' and an example cut along line XXI-XXI' in FIG. 76. [Figure 78] FIG. 66 is a plan view showing an example of a pixel in the display area of ​​FIG. 65. [Figure 79] FIG. 79 is a cross-sectional view showing an example cut along line XXII-XXII' in FIG. 78. [Figure 80] FIG. 79 is a cross-sectional view showing an example cut along line XXII-XXII' in FIG. 78. [Figure 81] FIG. 66 is a plan view showing an example of a pixel in the display area of ​​FIG. 65. [Figure 82] FIG. 66 is a plan view showing an example of a pixel arrangement in the display area of ​​FIG. 65. [Figure 83] FIG. 83 is a cross-sectional view showing an example of a sub-pixel and an example of a transmissive region in FIG. 82. [Figure 84] FIG. 83 is a cross-sectional view showing an example of a transmission region in FIG. 82. [Figure 85] FIG. 83 is a cross-sectional view showing an example of a transmission region in FIG. 82. [Figure 86] FIG. 83 is a cross-sectional view showing an example of a transmission region in FIG. 82. [Figure 87] FIG. 83 is a cross-sectional view showing an example of a transmission region in FIG. 82. [Figure 88] FIG. 83 is a cross-sectional view showing an example of a transmission region in FIG. 82. [Figure 89] FIG. 83 is a cross-sectional view showing an example of a sub-pixel and an example of a transmissive region in FIG. 82. [Figure 90] 1 is an exploded perspective view showing a schematic configuration of a display device according to an embodiment of the present invention. [Figure 91] FIG. 2 is a plan view showing an example of pixels in a sub-region of a display panel. [Figure 92] FIG. 2 is a plan view showing an example of pixels in a sub-region of a display panel. [Figure 93] FIG. 93 is a cross-sectional view showing an example of the mirror region of FIG. 92. [Figure 94] 1 is a perspective view illustrating a display panel according to an embodiment of the present invention. [Figure 95] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 96] FIG. 95 is a front view showing an example of the display panel of FIG. 94. [Figure 97] FIG. 95 is a rear view showing an example of the display panel of FIG. 94. [Figure 98]FIG. 95 is a side view showing an example of the display panel of FIG. 94. [Figure 99] 96 is a cross-sectional view showing a part of the fourth side surface portion of FIG. 95. [Figure 100] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 101] 101 is a side view showing an example of the display panel of FIG. 100. FIG. [Figure 102] 101 is a cross-sectional view showing a part of the fourth side surface portion of FIG. 100. FIG. [Figure 103] 101 is a cross-sectional view showing a part of the fourth side surface portion of FIG. 100. FIG. [Figure 104] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 105] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 106] FIG. 106 is a side view showing an example of the display panel of FIG. [Figure 107] 106 is a cross-sectional view showing an example of the fourth side surface portion of FIG. 105. FIG. [Figure 108] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 109] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 110] 1 is a development view showing a display panel according to an embodiment of the present invention; [Figure 111] 1 is a cross-sectional view illustrating an example of a display panel according to an embodiment of the present invention. [Figure 112] 112 is a cross-sectional view showing the sensor electrode layer of the planar portion and the antenna layer of the first side surface portion of FIG. 111. FIG. [Figure 113] FIG. 112 is a cross-sectional view showing an example of the pressure sensor of FIG. [Figure 114] FIG. 112 is a cross-sectional view showing an example of the pressure sensor of FIG. [Figure 115] FIG. 112 is a cross-sectional view showing an example of the pressure sensor of FIG. [Figure 116] 1 is a cross-sectional view illustrating an example of a display panel according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] Next, specific examples of embodiments for carrying out the display panel according to the present invention and a display device including the same will be described with reference to the drawings.

[0015] FIG. 1 is a schematic perspective view showing a display device according to one embodiment of the present invention, FIG. 2 is a schematic exploded perspective view showing a display device according to one embodiment of the present invention, and FIG. 3 is a block diagram showing a schematic configuration of a display device according to one embodiment of the present invention. Referring to FIGS. 1 to 3, a display device 10 according to an embodiment of the present invention is a device for displaying moving or still images, and is used as a display screen for various products such as portable electronic devices such as mobile phones, smartphones, tablet personal computers (PCs), mobile communication terminals, electronic organizers, electronic books, portable multimedia players (PMPs), navigation systems, and ultra-mobile PCs (UMPCs), as well as televisions, notebooks, monitors, billboards, and Internet of Things (IoT).

[0016] In addition, the display device 10 according to an embodiment of the present invention can be used in wearable devices such as a smart watch, a watch phone, a glasses-type display, and a head-mounted display (HMD). In addition, the display device 10 according to an embodiment of the present invention can be used as a CID (Center Information Display) located on an automobile's instrument panel, a center fascia or dashboard, a room mirror display replacing an automobile's side mirror, rear seat entertainment, or a display located on the back of a front seat.

[0017] For convenience of explanation, FIGS. 1 and 2 illustrate a case where a display device 10 according to an embodiment of the present invention is used in a smartphone. The display device 10 according to the embodiment of the present invention includes a cover window 100, a display panel 300, a display circuit board 310, a display driver 320, a sensor driver 330, a bracket 600, a main circuit board 700, a battery 790, and a bottom cover 900.

[0018] In this specification, "upper" refers to the direction in which the cover window 100 is arranged relative to the display panel 300, i.e., the Z-axis direction, and "lower" refers to the direction in which the bracket 600 is arranged relative to the display panel 300, i.e., the opposite direction to the Z-axis direction. Furthermore, "left," "right," "upper," and "lower" refer to directions when the display panel 300 is viewed from above. For example, "left" indicates the opposite direction along the X-axis, "right" indicates the opposite direction along the X-axis, "up" indicates the opposite direction along the Z-axis, and "down" indicates the opposite direction along the Z-axis.

[0019] The display device 10 has a rectangular shape when viewed from above. For example, the display device 10 may have a rectangular planar shape with a short side in a first direction (X-axis direction) and a long side in a second direction (Y-axis direction) as shown in FIG. The corner where the short side in the first direction (X-axis direction) meets the long side in the second direction (Y-axis direction) may be rounded to have a predetermined curvature or may be formed at a right angle. The planar shape of the display device 10 is not limited to a rectangle, but may be formed in other polygonal, circular, or elliptical shapes.

[0020] The display device 10 includes a first area DRA1 and a second area DRA2 extending from the left and right sides of the first area DRA1. The first region DRA1 may be flat or curved. The second region DRA2 may be formed to be flat or curved. When both the first region DRA1 and the second region DRA2 are formed as curved surfaces, the curvature of the first region DRA1 and the curvature of the second region DRA2 may be different. If the first region DRA1 is formed as a curved surface, it may have a constant curvature or a varying curvature. If the second region DRA2 is formed as a curved surface, it may have a constant curvature or a varying curvature. When the first region DRA1 and the second region DRA2 are both formed flat, the angle formed between the first region DRA1 and the second region DRA2 may be an obtuse angle.

[0021] Although FIG. 1 illustrates an example in which the second region DRA2 extends from both the left and right sides of the first region DRA1, the present invention is not limited to this. That is, the second region DRA2 can be extended only on either the left or right side of the first region DRA1. Alternatively, the second region DRA2 may extend from at least one of the left and right sides of the first region DRA1 as well as the top and bottom sides. Alternatively, the second region DRA2 may be omitted, and the display device 10 may include only the first region DRA1.

[0022] The cover window 100 is disposed above the display panel 300 so as to cover the upper surface of the display panel 300 . This allows the cover window 100 to function as a protector for the top surface of the display panel 300 . The cover window 100 includes a transmissive portion DA100 corresponding to the display panel 300 and a light-shielding portion NDA100 corresponding to the area other than the display panel 300. The cover window 100 is disposed in the first area DRA1 and the second area DRA2. The transmission portion DA100 is disposed in a part of the first region DRA1 and a part of the second region DRA2. The light blocking portion NDA 100 may include an opaque material that blocks light. The light blocking portion NDA100 may include a pattern that can be displayed to the user when no image is to be displayed.

[0023] The display panel 300 is disposed below the cover window 100 . The display panel 300 overlaps the transmissive portion DA100 of the cover window 100. The display panel 300 is arranged in a first area DRA1 and a second area DRA2. The user can view the video on the display panel 300 in the first area DRA1 and the second area DRA2. The display panel 300 may be a light-emitting display panel including light-emitting elements.

[0024] For example, the display panel 300 may be an organic light-emitting display panel using organic light-emitting diodes having an organic light-emitting layer, a micro-light-emitting diode display panel using micro-light-emitting diodes (micro LEDs), a quantum dot light-emitting display panel using quantum dot light-emitting diodes having a quantum dot light-emitting layer, or an inorganic light-emitting display panel using inorganic light-emitting elements including inorganic semiconductors.

[0025] The display panel 300 may be a rigid display panel that has stiffness and therefore does not bend easily, or a flexible display panel that has flexibility and therefore can be easily bent, folded, or rolled. For example, the display panel 300 may be a foldable display panel that can be folded or unfolded (deployed), a curved display panel in which the display surface is curved, a bent display panel in which areas other than the display surface are curved, a rollable display panel that can be rolled or unfolded (deployed), and a stretchable display panel that can be stretched.

[0026] The display panel 300 may be a transparent display panel that is transparent so that objects or a background disposed on the lower surface of the display panel 300 can be seen from the upper surface of the display panel 300. Alternatively, the display panel 300 may be a reflective display panel that can reflect objects or a background on the upper surface of the display panel 300 . A first flexible film 340 is attached to one side edge of the display panel 300 . One side of the first flexible film 340 is attached to one side edge of the display panel 300 using an anisotropic conductive film. The first flexible film 340 may be a bendable flexible film.

[0027] The display driver 320 is disposed on the first flexible film 340 . The display driver 320 receives a control signal and a power supply voltage, and generates and outputs a signal and a voltage for driving the display panel 300 . The display driver 320 may be formed as an integrated circuit (IC).

[0028] The display circuit board 310 is attached to the other side of the first flexible film 340 . The other side of the first flexible film 340 is attached to the top surface of the display circuit board 310 using an anisotropic conductive film. The display circuit board 310 may be a flexible printed circuit board (FPCB), which is bendable, a rigid printed circuit board (PCB), which is stiff and does not bend, or a composite printed circuit board that includes both a rigid printed circuit board and a flexible printed circuit board.

[0029] A sensor driver 330 is disposed on the display circuit board 310 . The sensor driver 330 may be formed as an integrated circuit. The sensor driver 330 is attached onto the display circuit board 310 . The sensor driver 330 is electrically connected to the sensor electrodes of the sensor electrode layer of the display panel 300 via the display circuit board 310 . The sensor electrode layer of the display panel 300 senses a touch input by a user using at least one of various touch methods such as a resistive method or a capacitive method.

[0030] For example, if the sensor electrode layer of the display panel 300 senses a user's touch input using a capacitive method, the sensor driver 330 applies a driving signal to a driving electrode among the sensor electrodes, and determines whether or not a user has touched the display panel 300 by detecting a voltage charged in a mutual capacitance (hereinafter referred to as "mutual capacitance") between the driving electrode and the sensing electrode by the sensing electrode among the sensor electrodes. The user's touch includes a contact touch and a proximity touch. A tactile touch refers to an object such as a user's finger or pen directly contacting the cover window 100 disposed on the sensor electrode layer. The proximity touch refers to a position where an object such as a user's finger or pen is positioned close to and spaced apart from the cover window 100, such as hovering. The sensor driver 330 transmits sensor data to the main processor 710 according to the sensed voltage, and the main processor 710 can calculate touch coordinates where a touch input occurs by analyzing the sensor data.

[0031] The display circuit board 310 further includes a power supply for supplying driving voltages to the pixels P of the display panel 300, the scan driver, and the display driver 320. Alternatively, the power supply may be integrated with the display driver 320, in which case the display driver 320 and the power supply may be formed in a single integrated circuit.

[0032] A bracket 600 for supporting the display panel 300 is disposed below the display panel 300 . Bracket 600 may comprise plastic, metal, or all plastic and metal. The bracket 600 may be formed with a first camera hole CMH1 into which the camera device 731 is inserted, a battery hole BH into which the battery 790 is disposed, a cable hole CAH through which the cable 314 connected to the display circuit board 310 passes, and the like.

[0033] A main circuit board 700 and a battery 790 are disposed below the bracket 600 . The main circuit board 700 can be a printed circuit board or a flexible printed circuit board. The main circuit board 700 may include a main processor 710 , a camera device 731 , and a main connector 711 . The main processor 710 may be formed in an integrated circuit. The camera device 731 may be located on both the top and bottom surfaces of the main circuit board 700, and the main processor 710 and the main connector 711 may each be located on either the top or bottom surface of the main circuit board 700.

[0034] The main processor 710 controls all functions of the display device 10 . For example, the main processor 710 outputs digital video data to the display driver 320 via the display circuit board 310 so that the display panel 300 displays an image. The main processor 710 also receives sensing data from the sensor driver 330 . The main processor 710 determines whether or not a user touches the touch panel according to the sensing data, and performs an operation corresponding to the user's direct touch or proximity touch. For example, the main processor 710 analyzes the sensing data to calculate the coordinates of the user's touch, and then executes an application or performs an operation indicated by the icon touched by the user.

[0035] Main processor 710 may be an integrated circuit application processor, a central processing unit, or a system chip. The camera device 731 processes image frames such as still images or moving images obtained by an image sensor in camera mode and outputs the processed images to the main processor 710 . The camera device 731 may include at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photosensor (or an image sensor), and a laser sensor.

[0036] The cable 314 passing through the cable hole CAH of the bracket 600 is connected to the main connector 711 , thereby electrically connecting the main circuit board 700 to the display circuit board 310 . In addition to the main processor 710, the camera device 731, and the main connector 711, the main circuit board 700 may further include a wireless communication unit 720, at least one of the input units 730, at least one of the sensor units 740, at least one of the output units 750, at least one of the interface units 760, a memory 770, and a power supply unit 780 shown in FIG. 3.

[0037] The wireless communication unit 720 may include at least one of a broadcast receiving module 721 , a mobile communication module 722 , a wireless Internet module 723 , a short-range communication module 724 , and a location information module 725 . The broadcast receiving module 721 receives broadcast signals and / or broadcast-related information from an external broadcast management server via a broadcast channel. Broadcast channels may include satellite channels and terrestrial channels.

[0038] The mobile communication module 722 transmits and receives radio signals to and from at least one of a base station, an external terminal, and a server on a mobile communication network established in accordance with a technical standard or communication method for mobile communication (e.g., GSM (Global System for Mobile communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA (registered trademark)), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc.). The wireless signals may include various types of data such as voice call signals, video call signals, or text / multimedia message transmissions.

[0039] The wireless internet module 723 refers to a module for wireless internet connection. The wireless internet module 723 transmits and receives wireless signals over a communication network using wireless internet technology. Examples of wireless internet technologies include LAN (Wireless LAN), Wi-Fi (Wireless Fidelity), Wi-Fi (Wireless Fidelity) Direct, and DLNA (Digital Living Network Alliance).

[0040] The short-range communication module 724 may support short-range communication using at least one of Bluetooth (registered trademark), RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless Universal Serial Bus (Wireless USB) technologies for short-range communication.

[0041] The short-range communication module 724 supports wireless communication between the display device 10 and a wireless communication system, between the display device 10 and another electronic device, or between the display device 10 and a network in which another electronic device (or an external server) is located via a short-range wireless communication network (Wireless Area Network). The short-range wireless communication networks may be Wireless Personal Area Networks. The other electronic device may be a wearable device that is capable of exchanging data with (or linking to) the display device 10.

[0042] The location information module 725 is a module for acquiring the location (or current location) of the display device 10, and typical examples thereof include a GPS (Global Positioning System) module or a WiFi (Wireless Fidelity) module. For example, when the display device 10 utilizes a GPS module, the display device 10 acquires the position of the display device 10 using signals sent from GPS satellites.

[0043] Furthermore, when the display device 10 utilizes a Wi-Fi module, the display device 10 can acquire the location of the display device 10 based on information from a wireless AP (Wireless Access Point) that transmits or receives wireless signals with the Wi-Fi module. The position information module 115 is a module used to acquire the position (or current position) of the display device 10, and is not limited to a module that directly calculates or acquires the position of the display device 10.

[0044] The input unit 730 may include a video input unit such as a camera device 731 for inputting a video signal, an audio input unit such as a microphone (732) for inputting an audio signal, and an input device 733 for receiving information input from a user. The camera device 731 processes image frames such as still images or video captured by an image sensor in a video call mode or a photography mode. The processed image frames can be displayed on the display panel 300 or stored in the memory 770 . The microphone 732 processes external acoustic signals into electrical audio data. The processed audio data can be utilized in a variety of ways depending on the function (or application) currently being executed on the display device 10. Meanwhile, the microphone 732 may be implemented with various noise reduction algorithms for removing noise generated during the process of receiving an external audio signal.

[0045] The main processor 710 controls the operation of the display device 10 in response to information input via the input device 733 . The input device 733 may include mechanical input means or touch input means such as buttons, dome switches, jog wheels, jog switches, etc. located on the rear or side of the display device 10. The touch input means is made up of the sensor electrode layer of the display panel 300 .

[0046] The sensor unit 740 includes one or more sensors that sense at least one of information within the display device 10, information about the surrounding environment surrounding the display device 10, and user information, and generates a corresponding sensing signal. The main processor 710 controls the driving or operation of the display device 10 based on such sensing signals, and performs data processing, functions, or operations related to applications installed on the display device 10. The sensor unit 740 may include at least one of a proximity sensor, an illumination sensor, an acceleration sensor, a magnetic sensor, a gravity sensor (G-sensor), a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor (IR sensor), a finger scan sensor, an ultrasonic sensor, an optical sensor, a battery gauge, an environmental sensor (e.g., a barometer, a hygrometer, a thermometer, a radiation detection sensor, a heat detection sensor, a gas detection sensor, etc.), and a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric recognition sensor, etc.).

[0047] A proximity sensor is a sensor that detects the presence or absence of an object approaching or present in the vicinity of a predetermined detection surface using electronic forces or infrared rays without mechanical contact. Examples of proximity sensors include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitance type proximity sensor, a magnetic type proximity sensor, and an infrared proximity sensor. The proximity sensor can detect not only proximity touches but also proximity touch patterns such as proximity touch distance, proximity touch direction, proximity touch speed, proximity touch duration, proximity touch position, and proximity touch movement state. The main processor 710 processes data (or information) corresponding to the proximity touch action and proximity touch pattern sensed through the proximity sensor, and controls the display panel 300 to display visual information corresponding to the processed data.

[0048] The ultrasonic sensor recognizes the position information of an object using ultrasonic waves. The main processor 710 can calculate the position of an object based on information sensed by the optical sensor and multiple ultrasonic sensors. Since the speed of light and the speed of ultrasound are different, the position of an object can be calculated using the time it takes for light to reach the optical sensor and the time it takes for ultrasound to reach the ultrasound sensor.

[0049] The output unit 750 is for generating output related to vision, hearing, touch, etc., and may include at least one of the display panel 300, an audio output unit 751, a haptic module 752, and an optical output unit 753. The display panel 300 displays (outputs) information processed by the display device 10. For example, the display panel 300 displays execution screen information of an application driven by the display device 10, or UI (User Interface) and GUI (Graphical User Interface) information based on the execution screen information. The display panel 300 includes a display layer that displays an image and a sensor electrode layer that senses a user's touch input. This allows the display panel 300 to function as one of the input devices 733 that provide an input interface between the display device 10 and the user, and at the same time function as one of the output units 750 that provide an output interface between the display device 10 and the user.

[0050] The audio output unit 751 receives audio from the wireless communication unit 720 in call signal reception, conversation mode, recording mode, voice recognition mode, broadcast reception mode, etc., and outputs audio data stored in the memory 770. The sound output unit 751 also outputs sound signals related to functions performed by the display device 10 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 751 may include a receiver and a speaker. At least one of the receiver and the speaker may be a sound generating device attached to the lower part of the display panel 300 to vibrate the display panel 300 and output sound. The sound generating device may be a piezoelectric element or a piezoelectric actuator that contracts and expands in response to an electric signal, or an exciter that uses a voice coil to generate a magnetic force to vibrate the display panel 300 .

[0051] The haptic module 752 generates a variety of haptic effects that can be felt by the user. The haptic module 752 provides vibrations to the user as a haptic effect. The vibration intensity and pattern generated by the haptic module 752 are controlled by user selection or main processor 710 settings. For example, the haptic module 752 can output different vibrations in combination or sequentially. In addition to vibration, the haptic module 752 can generate a variety of tactile effects, such as effects caused by stimuli such as pin arrangements that move vertically relative to the skin surface they come into contact with, the force of air injection or suction through the nozzles or inlets, touching the skin surface, contact with electrodes, and electrostatic force, as well as effects caused by simulating the sensation of cold or warmth using elements that can absorb or generate heat. The haptic module 752 can not only transmit haptic effects through direct contact, but also implement haptic effects so that the user can feel them through the muscle sensations of the fingers, arms, etc.

[0052] The optical output unit 753 outputs a signal for notifying the occurrence of an event using light from a light source. Examples of events that occur on the display device 10 include receiving a message, receiving a call signal, a missed call, an alarm, a schedule notification, receiving an email, and receiving information by an application. The signal output from the light output unit 753 is realized by the display device 10 emitting light of a single color or multiple colors from the front or rear surface. The signal output is terminated when the display device 10 senses the user's confirmation of the event.

[0053] The interface unit 760 serves as a passageway between the display device 10 and various types of external devices connected thereto. The interface unit 760 may include at least one of a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and an earphone port. When an external device is connected to the interface unit 760 of the display device 10, appropriate control related to the connected external device can be performed.

[0054] Memory 770 stores data that supports various functions of display device 10 . The memory 770 stores a number of applications (application programs) that are run on the display device 10, as well as data and commands for the operation of the display device 10. At least some of the multiple applications may be downloaded from an external server via wireless communication. The memory 770 stores applications for the operation of the main processor 710, and can also temporarily store input / output data such as a phone book, messages, still images, and videos. The memory 770 also stores haptic data for various patterns of vibration provided to the haptic module 752 and audio data for various sounds provided to the audio output unit 751 .

[0055] The memory 770 may include at least one type of storage medium among a flash memory type, a hard disk type, a solid state disk type (SSD type), a silicon disk drive type (SDD type), a multimedia card micro type, a card-type memory (such as an SD or XD memory), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk.

[0056] The power supply unit 780 receives an external power source and an internal power source under the control of the main processor 710 and supplies power to each component included in the display device 10 . The power supply 780 may include a battery 790 . The power supply unit 780 also includes a connection port, which is configured as an example of the interface unit 760 to which an external charger that supplies power for charging the battery is electrically connected. Alternatively, the power supply 780 may be able to charge the battery 790 wirelessly without using a connection port. The battery 790 receives power from an external wireless power transmission device using at least one of an inductive coupling method based on a magnetic induction phenomenon and a magnetic resonance coupling method based on an electromagnetic resonance phenomenon. The battery 790 is disposed so as not to overlap with the main circuit board 700 in the third direction (Z-axis direction). The battery 790 overlaps the battery hole BH of the bracket 600 .

[0057] The bottom cover 900 is disposed below the main circuit board 700 and the battery 790 . The lower cover 900 is fastened to the bracket 600 and fixed. The lower cover 900 forms the lower exterior of the display device 10 . The bottom cover 900 may comprise plastic, metal, or all plastic and metal. The lower cover 900 may have a second camera hole CMH2 through which the lower surface of the camera device 731 is exposed. The position of the camera device 731 and the positions of the first and second camera holes (CMH1, CMH2) corresponding to the camera device 731 are not limited to the embodiments shown in FIGS.

[0058] FIG. 4 is a plan view showing a display panel according to an embodiment of the present invention, and FIG. 5 is a side view showing an example of the display panel of FIG. FIG. 4 shows a plan view of the display panel 300 in which the first flexible film 340 is unbent and unfolded. 4 and 5, the display panel 300 includes a substrate SUB, a display layer DISL, a sensor electrode layer SENL, a polarizing film PF, and a panel lower cover PB.

[0059] The substrate SUB is made of an insulating material such as glass, quartz, or polymer resin. The substrate SUB may be a rigid substrate or a flexible substrate that allows bending, folding, rolling, and the like.

[0060] The display layer DISL is disposed on the substrate SUB. The display layer DISL is a layer that includes pixels and displays images. The display layer DISL includes a thin film transistor layer in which thin film transistors are formed, a light emitting element layer in which light emitting elements that emit light are formed, and a sealing layer for sealing the light emitting element layer. The display layer DISL is divided into a display area DA and a non-display area NDA. The display area DA is an area where pixels are arranged to display an image. The non-display area NDA is an area where no image is displayed. The non-display area NDA is disposed so as to surround the display area DA. The non-display area NDA is an area extending from the outside of the display area DA to the edge of the display panel 300. In the display area DA, not only pixels but also scan lines, data lines, power supply lines, etc. connected to the pixels can be arranged. In the non-display area NDA, a scan driver for applying a scan signal to the scan lines, fan-out lines connecting the data lines and the display driver 320, etc. may be arranged.

[0061] The sensor electrode layer SENL is disposed on the display layer DISL. The sensor electrode layer SENL includes a sensor electrode and is a layer for sensing whether or not a user touches the surface. The sensor electrode layer SENL includes a first layer in which a connection portion for connecting the drive electrodes is formed and a second layer in which the sensor electrode is formed. The sensor electrode layer SENL includes a sensor area TSA and a sensor peripheral area TPA. The sensor area TSA is an area where sensor electrodes are arranged to sense a user's touch input. The sensor peripheral area TPA is an area where no sensor electrodes are arranged, and is arranged to surround the sensor area TSA. The sensor peripheral area TPA is an area extending from the outside of the sensor area TSA to the edge of the display panel 300. Sensor electrodes, connections, and conductive patterns may be arranged in the sensor area TSA. Sensor wiring connected to the sensor electrodes can be arranged in the sensor peripheral area TPA. The sensor area TSA of the sensor electrode layer SENL overlaps the display area DA of the display layer DISL. A large portion of the sensor peripheral area TPA of the sensor electrode layer SENL overlaps with the non-display area NDA of the display layer DISL.

[0062] A polarizing film PF is disposed on the sensor electrode layer SENL. The polarizing film PF may include a linear polarizer and a phase retardation film such as a quarter-wave plate. A phase retardation film is disposed on the sensor electrode layer SENL, and a linear polarizer is disposed on the phase retardation film.

[0063] A cover window 100 is disposed on the polarizing film PF. The cover window 100 is attached onto the polarizing film PF by a transparent adhesive member such as an OCA (optically clear adhesive) film.

[0064] A panel lower cover PB is disposed below the display panel 300 . The panel lower cover PB is attached to the lower surface of the display panel 300 by an adhesive member. The adhesive member may be a pressure sensitive adhesive (PSA). The panel lower cover PB may include at least one of a light absorbing member for absorbing light incident from the outside, a buffer member for absorbing external impact, and a heat dissipation member for efficiently dissipating heat from the display panel 300.

[0065] The light absorbing member is disposed below the display panel 300. The light absorbing member blocks light transmission, thereby preventing components disposed below the light absorbing member, such as the display circuit board 310, from being visible above the display panel 300. The light absorbing member may include a light absorbing material such as a black pigment or a black dye.

[0066] The buffer member is disposed below the light absorbing member. The buffer member absorbs external impacts to prevent the display panel 300 from being damaged. The cushioning member may be made of a single layer or multiple layers. For example, the buffer member may be made of a polymer resin such as polyurethane, polycarbonate, polypropylene, or polyethylene, or may be made of an elastic material such as a sponge formed by foaming rubber, a urethane-based material, or an acrylic-based material.

[0067] The heat dissipation member is disposed below the buffer member. The heat dissipation member may include a first heat dissipation layer containing graphite, carbon nanotubes, etc., and a second heat dissipation layer formed of a thin metal film such as copper, nickel, ferrite, or silver that blocks electromagnetic waves and has excellent thermal conductivity.

[0068] A first flexible film 340 is disposed in the non-display area NDA at one side edge of the display panel 300 . For example, the first flexible film 340 is disposed in the non-display area NDA at the lower edge of the display panel 300 . The first flexible film 340 is bent under the display panel 300, and the display circuit board 310 is disposed under the panel lower cover PB. The display circuit board 310 is attached and fixed to the lower surface of the panel lower cover PB via a first adhesive member 391 . The first adhesive member 391 may be a pressure sensitive adhesive.

[0069] The antenna area APA includes a first conductive pattern used as an antenna. The first conductive pattern of the antenna area APA is used as a patch antenna for 5G mobile communication, but can also be used as an antenna for an RFID tag for short-range communication. When used as a patch antenna for 5G mobile communication, the first conductive pattern of the antenna area APA is formed into a square patch when viewed from above. When used as an antenna for an RFID tag for short-distance communication, the first conductive pattern of the antenna area APA is formed in a loop or coil shape.

[0070] The antenna area APA is arranged in the sensor peripheral area outside at least three sides of the sensor area TSA. The antenna area APA is arranged to surround the sensor area TSA on at least three sides. For example, the antenna area APA is arranged to surround the upper side, left side, and right side of the sensor area TSA. Alternatively, they are arranged in the sensor peripheral areas outside the four sides of the sensor area TSA. That is, the antenna area APA is arranged to surround at least four sides of the sensor area TSA. The first conductive pattern of the antenna area APA is electrically connected to the first flexible film 340 at one side edge of the display panel 300 . The first conductive pattern of the antenna area APA is connected to a sensor pad provided on one side edge of the display panel 300, and the sensor pad is connected to the first flexible film 340 via an anisotropic conductive film.

[0071] An RF driver 350 is disposed on the second flexible film 360 (see FIG. 2). The RF driver 350 may be formed in an integrated circuit. The RF driver 350 is electrically connected to the first conductive pattern of the antenna area APA. The RF driver 350 processes a radio frequency (RF) signal transmitted or received by the first conductive pattern of the antenna area APA. For example, the RF driver 350 changes the phase of the RF signal received by the first conductive pattern of the antenna area APA and amplifies the amplitude. The RF driver 350 transmits the phase-shifted and amplitude-amplified RF signal to the mobile communication module 722 or the short-range communication module 725 on the main circuit board 700 . Alternatively, the RF driver 350 may change the phase of the RF signal transmitted from the mobile communication module 722 or the short-range communication module 725 of the main circuit board 700 to amplify the amplitude. The RF driver 350 transmits the RF signal, the phase of which is changed and the amplitude of which is amplified, to the first conductive pattern of the antenna area APA.

[0072] As shown in Figures 4 and 5, the first conductive pattern AP of the antenna area APA arranged in the sensor peripheral area TPA of the sensor electrode layer SENL can be used as a patch antenna for 5G mobile communication or an antenna for an RFID tag for short-range communication. As a result, although the wavelength of the electromagnetic waves transmitted or received by the first conductive pattern in 5G mobile communication is short, the electromagnetic waves do not need to pass through the metal layer of the display panel 300, and can therefore be radiated stably to the top of the display device 10.

[0073] FIG. 6 is a schematic plan view showing a display panel according to one embodiment of the present invention, and FIG. 7 is a schematic side view showing an example of the display panel of FIG. FIG. 6 shows a schematic plan view of a display panel 300 in which the flexible films (340, 360) are unbent and unfolded (flat). The embodiment of FIGS. 6 and 7 differs from the embodiment of FIGS. 4 and 5 in that a second flexible film 360 is further disposed on the other side of the display panel 300. In the embodiment of FIGS.

[0074] Referring to Figures 6 and 7, when the first flexible film 340 is disposed on the first side of the display panel 300, the antenna area APA is disposed on the second side opposite the first side of the display panel, the third side connecting the first side and the second side, and the corner between the second side and the third side. For example, the antenna area APA is arranged in the sensor peripheral area TPA on the upper outer side of the sensor area TSA and in the sensor peripheral area TPA on the right outer side of the sensor area TSA. The antenna area APA is disposed at the corner where the upper and right sides of the display panel 300 meet. Alternatively, the antenna area APA is disposed in the sensor area TSA. The first conductive pattern AP of the antenna area APA arranged in the sensor area TSA is formed in a meandering shape (zigzag shape) including a plurality of bent portions when viewed from above, but is not limited to this. The first conductive pattern of the antenna area APA arranged in the sensor area TSA may be formed in the shape of a square patch, a loop, or a coil on a plane.

[0075] The first conductive pattern AP of the antenna area APA is electrically connected to the second flexible film 360 at the other side edge of the display panel 300 . The first conductive pattern of the antenna area APA is connected to a sensor pad provided on one side edge of the display panel 300, and the sensor pad is connected to the second flexible film 360 via an anisotropic conductive film. The RF driver 350 is disposed on the second flexible film 360 . The RF driver 350 may be formed as an integrated circuit. The RF driver 350 is electrically connected to the first conductive pattern AP of the antenna area APA.

[0076] As shown in Figures 6 and 7, the first conductive pattern AP of the antenna area APA arranged in the sensor peripheral area TPA of the sensor electrode layer SENL can be used as a patch antenna for 5G mobile communication or an antenna for an RFID tag for short-range communication. In this case, although the wavelength of the electromagnetic waves transmitted or received by the first conductive pattern in 5G mobile communication is short, the electromagnetic waves do not need to pass through the metal layer of the display panel 300, and therefore can be radiated stably to the top of the display device 10.

[0077] FIG. 8 is a schematic plan view showing a display panel according to one embodiment of the present invention, and FIG. 9 is a schematic side view showing an example of the display panel of FIG. 10 is also a schematic plan view showing a display panel according to one embodiment of the present invention, and FIG. 11 is a schematic side view showing an example of the display panel of FIG. FIG. 8 shows a plan view of the display panel 300 in which the first bending region BA1 and the second bending region BA2 are unbent and spread (flat). The embodiments of Figures 8 and 9 differ from the embodiments of Figures 4 and 5 in that the first bending area BA1 on one side of the display panel 300 is bent and the first pad area PDA1 is located on the underside of the panel lower cover PB, and the second bending area BA2 on the other side of the display panel 300 is bent and the second pad area PDA2 is located on the underside of the panel lower cover PB. That is, the display panel 300 is a bent display panel whose one and other sides are curved.

[0078] 8 and 9, the first bending area BA1 and the first pad area PDA1 protrude from the sensor peripheral area TPA on one side of the display panel 300 in the second direction (Y-axis direction). Figures 8 and 9 illustrate a case where the length of the first bending area BA1 and the first pad area PDA1 in the first direction (X-axis direction) is smaller than the length of the sensor area TSA in the first direction (X-axis direction), but this is not limited to this. The display panel 300 is bent at the first bending area BA1, and the first pad area PDA1 is disposed on the lower surface of the panel lower cover 400. The first pad area PDA1 overlaps with the sensor area TSA in the thickness direction of the display panel 300 (Z-axis direction). A display driver 320 and a display circuit board 310 are disposed in the first pad area PDA1.

[0079] The second bending area BA2 and the second pad area PDA2 protrude from the sensor peripheral area TPA on the other side of the display panel 300 in the second direction (Y-axis direction). Figures 8 and 9 illustrate a case where the length of the second bending area BA2 and the second pad area PDA2 in the first direction (X-axis direction) is smaller than the length of the sensor area TSA in the first direction (X-axis direction), but this is not limited to this. Although the other side of the display panel 300 is opposite to one side of the display panel 300 in FIGS. 8 and 9, the present invention is not limited thereto.

[0080] For example, as shown in FIGS. 10 and 11, one side of the display panel 300 may be either the upper side or the lower side of the display panel 300, and the other side of the display panel 300 may be either the left side or the right side of the display panel 300. The display panel 300 is bent at a second bending area BA2, and a second pad area PDA2 is disposed on the lower surface of the lower cover 400 of the panel. The second pad area PDA2 overlaps with the sensor area TSA in the thickness direction of the display panel 300 (Z-axis direction). The antenna area APA and the RF driver 350 are arranged in the second pad area PDA2. The antenna area APA includes a first conductive pattern formed into a loop, coil or square patch. Since the second pad area PDA2 is disposed on the lower surface of the panel lower cover 400, the first conductive pattern may also be disposed on the lower surface of the panel lower cover 400. When the antenna area APA is disposed in the second pad area PDA2 as shown in FIGS. 8 and 9, the design area of ​​the first conductive pattern of the antenna area APA may be larger than when the antenna area APA is disposed in the sensor peripheral area TPA. Therefore, the first conductive pattern AP of the antenna area APA can be designed more freely.

[0081] FIG. 12 is a schematic plan view showing a display panel according to one embodiment of the present invention, and FIG. 13 is a schematic side view showing an example of the display panel of FIG. FIG. 12 shows a plan view of the display panel 300 in which the first bending region BA1 and the second bending region BA2 are unbent and spread (flat). The embodiments of Figures 12 and 13 differ from the embodiments of Figures 4 and 5 in that a first bending area BA1 in the center of one side of the display panel 300 is bent, and a first pad area PDA1 is disposed on the underside of the panel lower cover PB, and a second bending area BA2 in one side edge of the display panel 300 is bent, and a second pad area PDA2 is disposed on the underside of the panel lower cover PB.

[0082] 12 and 13, the first bending area BA1 and the first pad area PDA1 protrude from the sensor peripheral area TPA at the center of one side of the display panel 300 in the second direction (Y-axis direction). The lengths of the first bending area BA1 and the first pad area PDA1 in the first direction (X-axis direction) are smaller than the length of the sensor area TSA in the first direction (X-axis direction). The second bending area BA2 protrudes from the sensor peripheral area TPA at the first and second edges on one side of the display panel 300 in the second direction (Y-axis direction). A first edge of one side of the display panel 300 is disposed to the left of the center of one side of the display panel 300, and a second edge of one side of the display panel 300 is disposed to the right of the center of one side of the display panel.

[0083] Although FIG. 12 illustrates an example in which the second bending area BA2 protrudes from the sensor peripheral area TPA at the first and second edges on one side of the display panel 300, the present invention is not limited thereto. For example, the second pad area PDA2 may protrude from the sensor peripheral area TPA at either a first edge or a second edge on one side of the display panel 300. A gap exists between the first bending area BA1 and the second bending area BA2. The length by which the display panel 300 bends in the second bending region BA2 is longer than the length by which the display panel 300 bends in the first bending region BA1, so as shown in Figure 12, the length of the second bending region BA2 in the second direction (Y-axis direction) is longer than the length of the first bending region BA1 in the second direction (Y-axis direction).

[0084] The second pad area PDA2 extends from the second bending area BA2. A gap exists between the first pad area PDA1 and the second pad area PDA2. The second pad area PDA2 is arranged to surround the left, right, and bottom sides of the first pad area PDA1. The maximum length of the second pad area PDA2 in the first direction (X-axis direction) is longer than the maximum length of the first pad area PDA1 in the first direction (X-axis direction). The maximum length of the second pad area PDA2 in the second direction (Y-axis direction) is longer than the maximum length of the first pad area PDA1 in the second direction (Y-axis direction).

[0085] The display panel 300 is bent at the first bending area BA1 and the second bending area BA2, and the first pad area PDA1 and the second pad area PDA2 are disposed on the lower surface of the panel lower cover 400. The first pad area PDA1 and the second pad area PDA2 overlap with the sensor area TSA in the thickness direction of the display panel 300 (Z-axis direction). A display driver 320 and a display circuit board 310 are disposed in the first pad area PDA1. The antenna area APA and the RF driver 350 are arranged in the second pad area PDA2. As shown in FIGS. 12 and 13, when the first conductive pattern of the antenna area APA is arranged in the second pad area PDA2, the design area of ​​the first conductive pattern is wider than when it is arranged in the sensor peripheral area TPA.

[0086] Meanwhile, the first conductive pattern AP and the RF driver 350 connected to the first conductive pattern AP are electrically connected to the mobile communication module 722 or the short-range communication module 725 for wireless communication, or to the battery 790 for wireless charging. When the RF driver 350 is electrically connected to the battery 790, a circuit board 370 for connecting the battery 790 and the second pad area PDA2 is disposed on one side edge of the second pad area PDA2 as shown in FIG. The circuit board 370 may be a flexible printed circuit board or flexible printed circuit (FPC).

[0087] 14 is a cross-sectional view showing the display area and the first antenna area of ​​the second pad area of ​​the display panel of FIG. When the first conductive pattern AP is used for wireless charging, it includes six layers (L1 to L6) as shown in FIG. 14 to ensure a sufficient thickness. For example, the first layer L1 is made of the same material as the light-shielding layer BML disposed below the active layer 121 of the display layer DISL, and has a thickness of approximately 250 μm. The second layer L2 is made of the same material as the gate electrode 122 of the display layer DISL, and has a thickness of approximately 250 μm. The third layer L3 is made of the same material as the capacitor electrode 125 of the display layer DISL, and has a thickness of approximately 250 μm. The fourth layer L4 is made of the same material as the source electrode 123 and the drain electrode 124 of the display layer DISL, and has a thickness of approximately 700 μm. The fifth layer L5 is made of the same material as the first connection portion BE1 of the sensor electrode layer SENL, and has a thickness of approximately 250 μm. The sixth layer L6 is made of the same material as the sensor electrode SE of the sensor electrode layer SENL, and has a thickness of approximately 700 μm. In this case, the light-shielding layer BML and the first layer L1 can be omitted, so the first conductive pattern AP can have a thickness of at least 2150 μm or more.

[0088] FIG. 15 is a schematic plan view showing a display panel according to an embodiment of the present invention, and FIG. 16 is a schematic plan view showing a display panel according to an embodiment of the present invention. 15 and 16 show plan views of the display panel 300 in which the first bending area BA1 is unbent and wide (on a plane). The embodiment of FIGS. 15 and 16 differs from the embodiment of FIG. 4 in that the first bending area BA1 on one side of the display panel 300 is bent and the first pad area PDA1 is disposed on the lower surface of the panel lower cover PB.

[0089] 15 and 16, the first bending area BA1 and the first pad area PDA1 protrude from the sensor peripheral area TPA on one side of the display panel 300 in the second direction (Y-axis direction). Figures 15 and 16 illustrate a case where the lengths of the first bending area BA1 and the first pad area PDA1 in the first direction (X-axis direction) are substantially the same as the length of the sensor peripheral area TPA in the first direction (X-axis direction), but this is not limited to this. The display panel 300 is bent at the first bending area BA1, and the first pad area PDA1 is disposed on the lower surface of the panel lower cover 400. The first pad area PDA1 overlaps with the sensor area TSA in the thickness direction of the display panel 300 (Z-axis direction). The first pad area PDA1 includes a display driver 320, a display circuit board 310, and an antenna area APA.

[0090] As shown in FIG. 15, the display driver 320 is disposed on one side of the first pad area PDA1, and the antenna areas APA are disposed on both sides of the display driver 320. Alternatively, as shown in FIG. 16, the display driver 320 is disposed in the center of the first pad area PDA1, and the antenna area APA is disposed on one side of the display driver 320, and the antenna area APA is disposed on the other side of the display driver 320. As shown in FIGS. 15 and 16, when the first conductive pattern of the antenna area APA is arranged in the first pad area PDA1, the design area of ​​the first conductive pattern is wider than when it is arranged in the sensor peripheral area TPA.

[0091] FIG. 17 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention. In Figure 17, the sensor electrodes (TE, RE) of the sensor electrode layer SENL include two types of electrodes, for example, a driving electrode TE and a sensing electrode RE, and are driven in a two-layer mutual capacitance manner in which a driving signal is applied to the driving electrode TE and then the voltage charged in the mutual capacitance is sensed via the sensing electrode RE.

[0092] Figure 17 illustrates an example in which the antenna area APA including the first conductive pattern AP is arranged in the sensor peripheral area TPA on the upper outer side of the sensor area TSA, the sensor peripheral area TPA on the right outer side of the sensor area TSA, and the corner where the upper and right sides of the display panel 300 meet, as shown in Figure 6. 17, a second flexible film 360 on which an RF driver 350 electrically connected to the first conductive pattern AP of the antenna area APA as in FIG. 6 is disposed is disposed above the display panel 300. In FIG. For convenience of explanation, FIG. 17 shows only the sensor electrodes (TE, RE), dummy patterns DE, sensor wirings (TL, RL), sensor pads (TP1, TP2), guard wirings (GL1 to GL5), and ground wirings (GRL1 to GRL3).

[0093] Referring to FIG. 17, the sensor electrode layer SENL includes a sensor area TSA for sensing a user's touch and a sensor peripheral area TPA disposed around the sensor area TSA. The sensor area TSA overlaps the display area DA of the display layer DISL, and the sensor peripheral area TPA overlaps the non-display area NDA of the display layer DISL. The sensor electrodes (TE, RE) include a first sensor electrode TE and a second sensor electrode RE. In the embodiment shown in FIG. 17, the first sensor electrodes are the driving electrodes TE, and the second sensor electrodes are the sensing electrodes RE. Although FIG. 17 illustrates an example in which the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE each have a diamond-shaped planar shape, the present invention is not limited to this.

[0094] The plurality of sensing electrodes RE are arranged in a first direction (X-axis direction) and are electrically connected to each other. The plurality of drive electrodes TE are arranged in a second direction (Y-axis direction) intersecting the first direction (X-axis direction) and are electrically connected to each other. The drive electrode TE and the sense electrode RE are electrically isolated from each other. The drive electrodes TE and the sense electrodes RE are spaced apart from each other. The drive electrodes TE are arranged side by side in the second direction (Y-axis direction). In order to electrically separate the sensing electrodes RE and the driving electrodes TE at their intersection regions, the driving electrodes TE adjacent to each other in the second direction (Y-axis direction) are connected via a first connection portion BE1, and the sensing electrodes RE adjacent to each other in the first direction (X-axis direction) are connected via a second connection portion BE2.

[0095] The dummy patterns DE are electrically isolated from the drive electrodes TE and the sensing electrodes RE. The driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE are arranged to be spaced apart from each other. Each dummy pattern DE is arranged so as to be surrounded by each of the drive electrodes TE and the sensing electrodes RE. Each of the dummy patterns DE is electrically floating. The dummy pattern DE reduces the parasitic capacitance between the second electrode of the light emitting element layer EML and the driving electrode TE or the sensing electrode RE. When the parasitic capacitance is reduced, there is an advantage that the charging speed of the mutual capacitance between the driving electrode TE and the sensing electrode RE can be increased. However, since the dummy pattern DE reduces the area of ​​the drive electrode TE and the sensing electrode RE, the mutual capacitance between the drive electrode TE and the sensing electrode RE becomes smaller, which may make the voltage charged to the mutual capacitance easily affected by noise. Therefore, it is preferable that the area of ​​the dummy pattern DE is appropriately set in consideration of the parasitic capacitance and mutual capacitance.

[0096] The sensor wiring (TL, RL) is arranged in the sensor peripheral area TPA. The sensor wiring (TL, RL) includes a sensing wiring RL connected to the sensing electrode RE, and a first driving wiring TL1 and a second driving wiring TL2 connected to the driving electrode TE. The sensing electrode RE arranged on one side of the sensor area TSA is connected to the sensing wiring RL. For example, as shown in FIG. 17, of the sensing electrodes RE electrically connected in the first direction (x-axis direction), the sensing electrode arranged at the right end is connected to the sensing wiring RL. The sensing line RL is connected to the second sensor pad TP2. Therefore, the sensor driver 330 is electrically connected to the sensing electrodes RE.

[0097] The driving electrodes TE arranged on one side of the sensor region TSA are connected to the first driving wiring TL1, and the driving electrodes TE arranged on the other side of the sensor region TSA are connected to the second driving wiring TL2. For example, among the driving electrodes TE electrically connected in the second direction (Y-axis direction) as shown in FIG. 17, the driving electrode TE arranged at the lower end is connected to the first driving wiring TL1, and the driving electrode TE arranged at the upper end is connected to the second driving wiring TL2. The second drive wiring TL2 passes through the outside of the left side of the sensor area TSA and is connected to the drive electrode TE on the upper side of the sensor area TSA. The first drive wiring TL1 and the second drive wiring TL2 are connected to the first sensor pad TP1. Therefore, the sensor driving section 330 is electrically connected to the driving electrode TE.

[0098] The first guard line GL1 is arranged outside the outermost sensing line RL among the sensing lines RL. Moreover, the first ground wiring GRL1 is arranged outside the first guard wiring GL1. As shown in FIG. 17, the first guard line GL1 is arranged on the right side of the sensing line RL that is arranged at the right end of the sensing line RL, and the first ground line GRL1 is arranged on the right side of the first guard line GL1. The second guard line GL2 is disposed between the innermost sensing line RL among the sensing lines RL and the first driving line TL1 that is disposed at the right end among the first driving lines TL1. As shown in FIG. 17, the sensing wiring RL arranged on the innermost side of the sensing wiring RL is the sensing wiring RL arranged at the left end of the sensing wiring RL. The second guard wiring GL2 is disposed between the first driving wiring TL1, which is disposed at the right end of the first driving wiring TL1, and the second ground wiring GRL2.

[0099] The third guard wiring GL3 is arranged between the innermost sensing wiring RL and the second ground wiring GRL2. The second ground wiring GRL2 is connected to the first sensor pad TP1 arranged on the rightmost side of the first sensor pads TP1 and the second sensor pad TP2 arranged on the leftmost side of the second sensor pads TP2. The fourth guard wiring GL4 can be arranged outside the second driving wiring TL2 that is arranged at the outermost edge of the second driving wiring TL2. As shown in FIG. 17, the fourth guard wiring GL4 is arranged on the left side of the second driving wiring TL2 that is arranged at the left end of the second driving wiring TL2. Furthermore, the third ground wiring GRL3 is arranged outside the fourth guard wiring GL4. As shown in FIG. 17, the fourth guard wiring GL4 is arranged on the left side of the second drive wiring TL2 and on the left side and above the second drive wiring TL2 arranged at the upper end, and the third ground wiring GRL3 is arranged on the left side and above the fourth guard wiring GL4.

[0100] The fifth guard wiring GL5 is arranged inside the second driving wiring TL2 that is arranged on the innermost side of the second driving wiring TL2. As shown in FIG. 17, the fifth guard wiring GL5 is arranged between the second driving wiring TL2, which is arranged at the right end of the second driving wiring TL2, and the sensing electrode RE. A ground voltage is applied to the first ground wiring GRL1, the second ground wiring GRL2, and the third ground wiring GRL3. Furthermore, a ground voltage is applied to the first guard wiring GL1, the second guard wiring GL2, the third guard wiring GL3, the fourth guard wiring GL4, and the fifth guard wiring GL5.

[0101] As shown in FIG. 17, the drive electrodes TE adjacent to each other in the second direction (Y-axis direction) are electrically connected to each other, and the drive electrodes TE adjacent to each other in the first direction (X-axis direction) are electrically insulated from each other. Furthermore, the sensing electrodes RE adjacent to each other in the first direction (X-axis direction) are electrically connected to each other, and the sensing electrodes RE adjacent to each other in the second direction (Y-axis direction) are electrically insulated from each other. Therefore, a mutual capacitance is formed at the intersection of the drive electrode TE and the sensing electrode RE. Also, as shown in FIG. 17, the first guard wiring GL1 is arranged between the outermost sensing wiring RL and the first ground wiring GRL1, and therefore can play a role in minimizing the influence of the outermost sensing wiring RL on voltage changes in the first ground wiring GRL1. The second guard wiring GL2 is arranged between the sensing wiring RL arranged on the innermost side and the first drive wiring TL1 arranged on the outermost side. Therefore, the second guard wiring GL2 can play a role in minimizing the influence of the sensing wiring RL arranged on the innermost side and the first driving wiring TL1 arranged on the outermost side in response to voltage changes.

[0102] The third guard wiring GL3 is arranged between the innermost sensing wiring RL and the second ground wiring GRL2, and therefore can play a role in minimizing the influence of the innermost sensing wiring RL on voltage changes in the second ground wiring GRL2. The fourth guard wiring GL4 is arranged between the second drive wiring TL2, which is arranged at the outermost periphery, and the third ground wiring GRL3, and therefore can play a role in minimizing the influence of voltage changes on the third ground wiring GRL3 on the second drive wiring TL2. The fifth guard wiring GL5 is arranged between the innermost second driving wiring TL2 and the sensor electrodes (TE, RE), and therefore can play a role in minimizing mutual influence between the innermost second driving wiring TL2 and the sensor electrodes (TE, RE).

[0103] The antenna area APA is arranged in a sensor peripheral area TPA arranged on the outer right side of the sensor area TSA and in a sensor peripheral area TPA arranged on the outer upper side of the sensor area TSA. In the sensor peripheral area TPA disposed on the right outer side of the sensor area TSA, the number of sensing wirings RL decreases from the bottom to the top. Therefore, in the sensor peripheral area TPA arranged on the right side outside the sensor area TSA, there is an empty area where no sensing wiring RL is arranged. In addition, in the sensor peripheral area TPA arranged on the upper outer side of the sensor area TSA, the number of second drive wirings TL2 decreases from the left side to the right side. Therefore, in the sensor peripheral area TPA arranged on the upper outer side of the sensor area TSA, there is an empty area where the second drive wiring TL2 is not arranged.

[0104] The antenna area APA is arranged in the empty area in the sensor peripheral area TPA located on the right outer side of the sensor area TSA where the sensing wiring RL is not arranged, and in the empty area in the sensor peripheral area TPA located on the upper outer side of the sensor area TSA where the second drive wiring TL2 is not arranged. As a result, the first conductive pattern AP in the antenna area APA is formed in the same layer as the sensing wiring RL and the second drive wiring TL2 in the sensor peripheral area TPA. That is, as shown in FIG. 17, by arranging the first conductive pattern AP of the antenna area APA in an area of ​​the sensor peripheral area TPA where sensor wiring is not arranged, the first conductive pattern AP of the antenna area APA is formed in the same layer as the sensor wiring of the sensor peripheral area TPA. Therefore, the first conductive pattern AP of the antenna area APA can be formed without adding an additional process. On the other hand, the antenna area APA may overlap the first ground wiring GRL1 and the third ground wiring GRL3.

[0105] Furthermore, a first guard line GL1 is arranged between the antenna area APA and the sensing line RL arranged at the right end of the sensing line RL. Therefore, the first guard wiring GL1 can reduce or prevent the sensing wiring RL from being affected by electromagnetic waves radiated in the antenna area APA. Furthermore, a fourth guard wiring GL4 is arranged between the antenna area APA and the second drive wiring TL2 arranged at the upper end. Therefore, the fourth guard wiring GL4 can reduce or prevent the second drive wiring TL2 from being affected by electromagnetic waves radiated in the antenna area APA. Meanwhile, although FIG. 17 illustrates the case where the first conductive pattern AP of the antenna area APA is formed in a square patch, the present invention is not limited to this. The first conductive pattern AP may be formed in a loop or coil shape.

[0106] FIG. 18 is a diagram illustrating an example of a sensor driving unit connected to a sensor electrode. For ease of explanation, Figure 18 only shows driving electrodes TE arranged in one column and electrically connected in the second direction (Y-axis direction) and sensing electrodes RE arranged in one row and electrically connected in the first direction (X-axis direction). Referring to FIG. 18, the sensor driving unit 330 includes a driving signal output unit 331, a first sensor sensing unit 332, and a first analog-to-digital converter 333.

[0107] The drive signal output unit 331 outputs the touch drive signal TD to the drive electrode TE via the first drive wiring TL1, and outputs the touch drive signal TD to the drive electrode TE via the second drive wiring TL2 (see FIG. 17). The touch drive signal TD includes a plurality of pulses. The drive signal output unit 331 outputs the touch drive signal TD to the drive wirings (TL1, TL2) in a predetermined order. For example, the drive signal output unit 331 sequentially outputs the touch drive signal TD from the drive electrode TE arranged on the left side of the touch sensor area TSA in FIG. 17 to the drive electrode TE arranged on the right side of the touch sensor area TSA. The first sensor sensing unit 332 senses the voltage charged in the first mutual capacitance Cm1 through the sensing wire RL electrically connected to the sensing electrode RE. As shown in FIG. 18, a first mutual capacitance Cm1 is formed between the driving electrode TE and the sensing electrode RE.

[0108] The first sensor sensing unit 332 includes a first operational amplifier OP1, a first feedback capacitor Cfb1, and a first reset switch RSW1. The first operational amplifier OP1 includes a first input terminal (-), a second input terminal (+), and an output terminal (out). The first input terminal (-) of the first operational amplifier OP1 is connected to the sensing line RL, the second input terminal (+) is supplied with the initialization voltage VREF, and the output terminal (out) of the first operational amplifier OP1 is connected to the first storage capacitor. The first storage capacitor is connected between the output terminal (out) of the first operational amplifier OP1 and ground to store the output voltage Vout1 of the first operational amplifier OP1. The first feedback capacitor Cfb1 and the first reset switch RSW1 are connected in parallel between the first input terminal (-) and the output terminal (out) of the first operational amplifier OP1. The first reset switch RSW1 serves to control the connection across the first feedback capacitor Cfb1. When the first reset switch RSW1 is turned on to connect both ends of the first feedback capacitor Cfb1, the first feedback capacitor Cfb1 is reset.

[0109] The output voltage Vout1 of the first operational amplifier OP1 is defined by the following equation 1.

number

[0110] In Equation 1, "Vout1" represents the output voltage of the first operational amplifier OP1, "Cm1" represents the first mutual capacitance, "Cfb1" represents the capacitance of the first feedback capacitor, and "Vt1" represents the voltage charged to the first mutual capacitance Cm1. The first analog-to-digital converter 333 converts the output voltage Vout1 stored in the first storage capacitor into first digital data and outputs the first digital data. As shown in FIG. 18, the sensor electrode layer SENL detects the voltage charged in the first mutual capacitance Cm1 to determine whether or not a user has touched the touch panel.

[0111] FIG. 19 is an enlarged plan view showing the sensor area of ​​FIG. 17 in detail. For convenience of explanation, FIG. 19 shows only two sensing electrodes RE adjacent to each other in the first direction (X-axis direction) and two driving electrodes TE adjacent to each other in the second direction (Y-axis direction). Referring to FIG. 19, each of the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE may have a rectangular planar shape, but is not limited thereto. The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, the first connecting portions BE1, and the second connecting portions BE2 are formed in a mesh structure or a net structure on a plane.

[0112] The plurality of sensing electrodes RE are arranged in a first direction (X-axis direction) and are electrically connected to each other. The plurality of drive electrodes TE are arranged in the second direction (Y-axis direction) and are electrically connected to each other. Each of the dummy patterns DE is arranged so as to be surrounded by each of the drive electrodes TE and the sensing electrodes RE. The drive electrodes TE, the sensing electrodes RE, and the dummy patterns DE are electrically isolated from each other. The driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE are arranged to be spaced apart from each other. In order to electrically separate the sensing electrodes RE and the driving electrodes TE at their intersection regions, the driving electrodes TE adjacent to each other in the second direction (Y-axis direction) are connected via a first connection portion BE1, and the sensing electrodes RE adjacent to each other in the first direction (X-axis direction) are connected via a second connection portion BE2. The first connection portion BE1 is formed in a layer different from that of the driving electrode TE, and is connected to the driving electrode TE via the first contact hole CNT1. For example, the first connecting portion BE1 is arranged on the second buffer film BF2 shown in FIG. 21, and the driving electrode TE is arranged on the first sensor insulating film TINS1 shown in FIG.

[0113] The first connection portion BE1 is formed so as to be bent at least once. Although FIG. 19 illustrates an example in which the first connecting portion BE1 is bent into an angle bracket shape ("<" or ">"), the shape of the first connecting portion BE1 is not limited to this. Furthermore, since the driving electrodes TE adjacent to each other in the second direction (Y-axis direction) are connected by a plurality of first connection parts BE1, even if one of the first connection parts BE1 is disconnected, the driving electrodes TE adjacent to each other in the second direction (Y-axis direction) are stably connected. Although FIG. 19 illustrates a case where the adjacent driving electrodes TE are connected by two first connecting portions BE1, the number of first connecting portions BE1 is not limited to this. The second connection portion BE2 is formed in the same layer as the sensing electrode RE, and has a shape extending from the sensing electrode RE. The sensing electrode RE and the second connection portion BE2 may be formed of the same material. For example, the sensing electrode RE and the second connection part BE2 are disposed on the first sensor insulating film TINS1 shown in FIG.

[0114] As shown in Figure 19, the first connection portion BE1 that connects adjacent driving electrodes TE in the second direction (Y-axis direction) is arranged on the second buffer film BF2, and the driving electrode TE, sensing electrode RE, dummy pattern DE, and second connection portion BE2 are arranged on the first sensor insulating film TINS1. Therefore, the driving electrode TE and the sensing electrode RE are electrically separated at their intersection regions, the sensing electrode RE is electrically connected in the first direction (X-axis direction), and the driving electrode TE is electrically connected in the second direction (Y-axis direction).

[0115] FIG. 20 is an enlarged plan view showing the sensor electrodes and connections of FIG. 19 in detail. FIG. 20 is an enlarged plan view of the A-1 region in FIG. Referring to FIG. 20, the driving electrodes TE, the sensing electrodes RE, the first connecting portion BE1, and the second connecting portion BE2 are formed in a mesh structure or a net structure on a plane. The dummy pattern DE is also formed in a mesh or net structure on a plane. When the sensor electrode layer SENL including the driving electrode TE and the sensing electrode RE is formed immediately on the encapsulation layer TFEL as shown in Figure 21, the distance between the second electrode of the light-emitting element layer EML and the driving electrode TE or the sensing electrode RE of the sensor electrode layer SENL is short, so there is a possibility that a large parasitic capacitance will be formed between the second electrode of the light-emitting element layer EML and the driving electrode TE or the sensing electrode RE of the sensor electrode layer SENL.

[0116] Since the parasitic capacitance is proportional to the overlapping area between the second electrode of the light-emitting element layer EML and the driving electrode TE or sensing electrode RE of the sensor electrode layer SENL, it is preferable that the driving electrode TE and the sensing electrode RE be formed in a mesh structure or net structure on a plane in order to reduce the parasitic capacitance. The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, and the second connecting portions BE2 are formed in the same layer and are therefore spaced apart from one another. Gaps exist between the driving electrode TE and the sensing electrode RE, between the driving electrode TE and the second connecting portion BE2, between the driving electrode TE and the dummy pattern DE, and between the sensing electrode RE and the dummy pattern DE. For ease of explanation, in FIG. 20, the boundary between the driving electrode TE and the sensing electrode RE, the boundary between the driving electrode TE and the second connecting portion BE2, and the boundary between the sensing electrode RE and the second connecting portion BE2 are shown by dotted lines.

[0117] The first connection portion BE1 is connected to the driving electrode TE via the first contact hole CNT1. One end of the first connection portion BE1 is connected to one of the driving electrodes TE adjacent to each other in the second direction (Y-axis direction) via the first contact hole CNT1. The other end of the first connection portion BE1 is connected to another of the driving electrodes TE adjacent to each other in the second direction (Y-axis direction) via the first contact hole CNT1. The first connection portion BE1 overlaps the driving electrode TE and the sensing electrode RE. Alternatively, the first connection portion BE1 can overlap with the second connection portion BE2 instead of the sensing electrode RE. Alternatively, the first connecting portion BE1 can overlap both the sensing electrode RE and the second connecting portion BE2. The first connection portion BE1 is formed in a different layer from the driving electrode TE, the sensing electrode RE, and the second connection portion BE2, so that even if it overlaps with the sensing electrode RE and / or the second connection portion BE2, it is not short-circuited to the sensing electrode RE and / or the second connection portion BE2.

[0118] The second connections BE2 are arranged between the sensing electrodes RE. The second connection portions BE2 are formed in the same layer as the sensing electrodes RE and extend from each of the sensing electrodes RE. Therefore, the second connection part BE2 is connected to the sensing electrode RE without a separate contact hole.

[0119] The sub-pixels (R, G, B) include a first sub-pixel R that emits a first color, a second sub-pixel G that emits a second color, and a third sub-pixel B that emits a third color. Although FIG. 20 illustrates an example in which the first sub-pixel R is the first sub-pixel, the second sub-pixel G is the second sub-pixel, and the third sub-pixel B is the third sub-pixel, the present invention is not limited to this. Although FIG. 20 illustrates an example in which the first sub-pixel R, the second sub-pixel G, and the third sub-pixel B have a rectangular planar shape, the present invention is not limited to this. For example, the first sub-pixel R, the second sub-pixel G, and the third sub-pixel B may have a planar shape other than a square, such as a polygon, a circle, or an ellipse. Although FIG. 20 illustrates an example in which the third sub-pixel B is the largest and the second sub-pixel G is the smallest, the present invention is not limited to this.

[0120] A pixel P represents a group of sub-pixels that can express a gray scale. Although FIG. 20 illustrates an example in which the pixel P includes one first sub-pixel R, two second sub-pixels G, and one third sub-pixel B, the present invention is not limited to this. For example, a pixel P may include one first sub-pixel R, one second sub-pixel G, and one third sub-pixel B.

[0121] Since the driving electrodes TE, sensing electrodes RE, dummy patterns DE, first connection portions BE1, and second connection portions BE2 are formed in a mesh structure or a net structure on a plane, the sub-pixels (R, G, B) do not overlap with the driving electrodes TE, sensing electrodes RE, dummy patterns DE, first connection portions BE1, and second connection portions BE2. Therefore, it is possible to prevent the brightness of the light from being reduced due to the light output from the sub-pixels (R, G, B) being blocked by the driving electrode TE, the sensing electrode RE, the dummy pattern DE, the first connecting portion BE1, and the second connecting portion BE2.

[0122] FIG. 21 is a cross-sectional view taken along line II' in FIG. Referring to FIG. 21, a display layer DISL including a first buffer film BF1, a thin film transistor layer TFTL, a light emitting element layer EML, and a sealing layer TFEL is disposed on a substrate SUB.

[0123] A first buffer film BF1 is formed on one surface of the substrate SUB. The first buffer film BF1 is formed on one surface of the substrate SUB to protect the thin film transistor 120 and the organic light emitting layer 172 of the light emitting element layer EML from moisture that may penetrate through the substrate SUB, which is susceptible to moisture permeation. The first buffer film BF1 is made up of a plurality of inorganic films stacked alternately. For example, the first buffer film BF1 may be formed of a multi-layer structure in which one or more inorganic layers selected from the group consisting of silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, and aluminum oxide are alternately stacked. The first buffer film BF1 can be omitted.

[0124] The thin film transistor layer TFTL includes a thin film transistor 120 , a gate insulating film 130 , an interlayer insulating film 140 , a protective film 150 , and a planarizing film 160 . The thin film transistor 120 is formed on the first buffer film BF1. The thin film transistor 120 includes an active layer 121, a gate electrode 122, a source electrode 123, and a drain electrode . Although FIG. 21 illustrates a case where the thin film transistor 120 is formed in a top gate manner in which the gate electrode 122 is located on top of the active layer 121, it should be noted that the present invention is not limited to this. That is, the thin film transistor 120 may be formed in a bottom gate manner in which the gate electrode 122 is located below the active layer 121, or in a double gate manner in which the gate electrode 122 is located both above and below the active layer 121.

[0125] The active layer 121 is formed on the first buffer film BF1. The active layer 121 may include polycrystalline silicon, single crystal silicon, low temperature polycrystalline silicon, amorphous silicon, or an oxide semiconductor. For example, oxide semiconductors may include binary compounds (ABx), ternary compounds (ABxCy), and quaternary compounds (ABxCyDz) containing indium, zinc, gallium, tin, titanium, aluminum, hafnium (Hf), zirconium (Zr), magnesium (Mg), and the like. For example, the active layer 121 may include ITZO (an oxide containing indium, tin, and titanium) or IGZO (an oxide containing indium, gallium, and tin). A light-shielding layer for blocking external light incident on the active layer 121 may be formed between the buffer film and the active layer 121.

[0126] A gate insulating film 130 is formed on the active layer 121 . The gate insulating film 130 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. A gate electrode 122 and a gate wiring are formed on the gate insulating film 130 . The gate electrode 122 overlaps the active layer 121 . The gate electrode 122 and the gate wiring may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0127] A first interlayer insulating film 141 is formed on the gate electrode 122 and the gate wiring. The first interlayer insulating film 141 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. A capacitor electrode 125 is formed on the first interlayer insulating film 141 . The capacitor electrode 125 overlaps the gate electrode 122 . The capacitor electrode 125 may be formed of a single layer or multiple layers of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0128] A second interlayer insulating film 142 is formed on the capacitor electrode 125 . The second interlayer insulating film 142 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. A source electrode 123 and a drain electrode 124 are formed on the second interlayer insulating film 142 . The source electrode 123 and the drain electrode 124 are each connected to the active layer 121 via a contact hole that penetrates the interlayer insulating film 140 . The source electrode 123 and the drain electrode 124 may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0129] A protective film 150 for insulating the thin film transistor 120 is formed on the source electrode 123 and the drain electrode 124 . The protective film 150 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. A planarization film 160 for planarizing the step caused by the thin film transistor 120 is formed on the passivation film 150 . The planarization film 160 can be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0130] The light emitting element layer EML is formed on the thin film transistor layer TFTL. The light emitting element layer EML includes a light emitting element 170 and a pixel defining film 180 . The light emitting element 170 and the pixel defining layer 180 are formed on the planarizing layer 160 . Each of the light emitting elements 170 includes a first electrode 171 , an organic light emitting layer 172 , and a second electrode 173 . 21, the case where the light emitting element 170 is an organic light emitting diode including an organic light emitting layer 172 will be mainly described.

[0131] The first electrode 171 is formed on the planarization film 160 . Although FIG. 21 illustrates an example in which the first electrode 171 is connected to the drain electrode 124 of the thin film transistor 120 via a contact hole that penetrates the protective film 150 and the planarizing film 160, the present invention is not limited to this. The first electrode 171 may be connected to the source electrode 123 of the thin film transistor 120 through a contact hole that penetrates the passivation film 150 and the planarization film 160 . In a top emission structure in which light is emitted toward the second electrode 173 from the organic light emitting layer 172, the first electrode 171 may be formed of a metal material with high reflectivity, such as a laminated structure of aluminum and titanium (Ti / Al / Ti), a laminated structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, or a laminated structure of an APC alloy and ITO (ITO / APC / ITO). The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0132] In a bottom emission structure in which light is emitted toward the first electrode 171 based on the organic light emitting layer 172, the first electrode 171 may be formed of a transparent conductive material (TCO) that transmits light, such as ITO or IZO, or a semi-transmissive conductive material, such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). Here, when the first electrode 171 is made of a semi-transparent metal material, the light output efficiency is increased due to the microcavities.

[0133] The pixel defining layer 180 is formed on the planarizing layer 160 to separate the first electrodes 171 and to serve as a pixel defining layer for defining the sub-pixels PX. The pixel defining layer 180 is formed to cover the edge of the first electrode 171 . The pixel defining film 180 may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin. Each subpixel PX is an area in which a first electrode 171, an organic light-emitting layer 172, and a second electrode 173 are stacked in sequence, and holes from the first electrode 171 and electrons from the second electrode 173 are combined with each other in the organic light-emitting layer 172 to emit light.

[0134] An organic light emitting layer 172 is formed on the first electrode 171 and the pixel defining layer 180 . The organic light-emitting layer 172 contains an organic material and emits light of a predetermined color. For example, the organic light-emitting layer 172 includes a hole transporting layer, an organic material layer, and an electron transporting layer. In this case, in FIG. 20, the organic light emitting layer 172 of the first sub-pixel R emits red light, the organic light emitting layer 172 of the second sub-pixel G emits green light, and the organic light emitting layer 172 of the third sub-pixel B emits blue light.

[0135] Alternatively, the organic light-emitting layer 172 of the sub-pixel PX may be formed as a single layer and may emit white light, ultraviolet light, or blue light. In this case, in Figure 20, the first sub-pixel R overlaps with a first color filter that transmits red light, the second sub-pixel G overlaps with a second color filter that transmits green light, and the third sub-pixel B overlaps with a third color filter that transmits blue light. The first color filter, the second color filter, and the third color filter are disposed on the encapsulation layer TFEL.

[0136] Also, in Figure 20, the first sub-pixel R overlaps with a first wavelength conversion layer that converts blue light to red light, the second sub-pixel G overlaps with a second wavelength conversion layer that converts blue light to green light, and the third sub-pixel B overlaps with a water-permeable layer that outputs blue light as is. The first wavelength-converting layer, the second wavelength-converting layer, and the third wavelength-converting layer are disposed on the encapsulating layer TFEL. For example, the first wavelength conversion layer is disposed between the encapsulating layer TFEL and the first color filter, the second wavelength conversion layer is disposed between the encapsulating layer TFEL and the second color filter, and the third wavelength conversion layer is disposed between the encapsulating layer TFEL and the third color filter.

[0137] The second electrode 173 is formed on the organic light-emitting layer 172 . The second electrode 173 is formed to cover the organic light emitting layer 172 . The second electrode 173 is a common layer formed in common to the sub-pixels PX. A capping layer may be formed on the second electrode 173 . In the top emission structure, the second electrode 173 may be formed of a transparent conductive material (TCO) that transmits light, such as ITO or IZO, or a semi-transmissive conductive material, such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). When the second electrode 173 is made of a semi-transparent metal material, the light output efficiency is increased due to the microcavities. In the bottom emission structure, the second electrode 173 may be formed of a metal material with high reflectivity, such as a laminated structure of aluminum and titanium (Ti / Al / Ti), a laminated structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, and a laminated structure of APC alloy and ITO (ITO / APC / ITO). The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0138] An encapsulation layer TFEL is formed on the light-emitting element layer EML. The encapsulation layer TFEL is disposed on the second electrode 173 . The encapsulation layer TFEL may include at least one inorganic film to prevent oxygen or moisture from penetrating into the organic light-emitting layer 172 and the second electrode 173 . In addition, the encapsulation layer TFEL may include at least one organic film to protect the light-emitting element layer EML from foreign matter such as dust. For example, the encapsulation layer TFEL may include a first inorganic film disposed on the second electrode 173, an organic film disposed on the first inorganic film, and a second inorganic film disposed on the organic film. The first inorganic film and the second inorganic film may be formed of, but are not limited to, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic film is formed of, but not limited to, an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, a polyimide resin, or the like.

[0139] A sensor electrode layer SENL is formed on the sealing layer TFEL. The sensor electrode layer SENL may include a second buffer film BF2, a driving electrode TE, a sensing electrode RE, a dummy pattern DE, a second connection portion BE2, a first driving wiring TL1, a second driving wiring TL2, a sensing wiring RL, guard wiring (GL1, GL2, GL3, GL4, GL5), and ground wiring (GRL1, GRL2, GRL3, GRL4), a first sensor insulating film TINS1, and a second sensor insulating film TINS2. FIG. 21 illustrates only the drive electrode TE, the sensing electrode RE, and the first connection portion BE1 of the sensor electrode layer SENL.

[0140] The second buffer film BF2 is formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. A first connection part BE1 may be formed on the second buffer film BF2. The first connection part BE1 may be disposed to overlap the pixel defining layer 180 in the third direction (Z-axis direction). The first connection part BE1 may be formed of, but is not limited to, a laminated structure of aluminum and titanium (Ti / Al / Ti), a laminated structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, and a laminated structure of APC alloy and ITO (ITO / APC / ITO).

[0141] The first sensor insulating film TINS1 is formed on the first connecting portion BE1. The first sensor insulating film TINS1 can be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. Alternatively, the first sensor insulating film TINS1 can be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0142] On the first sensor insulating film TINS1, a driving electrode TE, a sensing electrode RE, a dummy pattern DE, a second connection portion BE2, a first driving wiring TL1, a second driving wiring TL2, a sensing wiring RL, guard wirings (GL1, GL2, GL3, GL4, GL5), and ground wirings (GRL1, GRL2, GRL3, GRL4) are formed. The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, and the second connection parts BE2 may be arranged to overlap the pixel defining layer 180 in the third direction (Z-axis direction). The driving electrode TE, sensing electrode RE, dummy pattern DE, second connection portion BE2, first driving wiring TL1, second driving wiring TL2, sensing wiring RL, guard wiring (GL1, GL2, GL3, GL4, GL5), and ground wiring (GRL1, GRL2, GRL3, GRL4) are formed of, but not limited to, a laminated structure of aluminum and titanium (Ti / Al / Ti), a laminated structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, and a laminated structure of APC alloy and ITO (ITO / APC / ITO). A first contact hole CNT1 is formed in the first sensor insulating film TINS1 to penetrate the first sensor insulating film TINS1 and expose the first connecting portion BE1. The driving electrode TE is connected to the first connecting part BE1 via the first contact hole CNT1.

[0143] A second sensor insulating film TINS2 is formed on the driving electrode TE. The second sensor insulating film TINS2 plays a role in flattening the step of the sensor electrode layer SENL. The second sensor insulating film TINS2 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. Alternatively, the second sensor insulating film TINS2 can be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0144] As shown in Figure 21, the first connection portion BE1 that connects adjacent driving electrodes TE in the second direction (Y-axis direction) is formed on the second buffer film BF2, and the driving electrode TE, the sensing electrode RE, and the second connection portion BE2 are formed on the first sensor insulating film TINS1. Therefore, the driving electrode TE and the sensing electrode RE are electrically separated at their intersection regions, the sensing electrode RE is electrically connected in the first direction (X-axis direction), and the driving electrode TE is electrically connected in the second direction (Y-axis direction).

[0145] FIG. 22 is an enlarged plan view showing an example of the antenna area of ​​FIG. FIG. 22 illustrates an example in which the first conductive pattern AP of the antenna area APA is formed as a patch antenna for mobile communication. Referring to FIG. 22, the antenna area APA includes a plurality of first conductive patterns (AP1 to AP4). Although FIG. 22 illustrates an example in which the antenna area APA includes four first conductive patterns (AP1 to AP4), the present invention is not limited to this. For example, the antenna area APA may include 4 to 16 first conductive patterns.

[0146] Each of the first conductive patterns (AP1 to AP4) is formed in a mesh structure or a net structure on a plane. In recent years, commercialized 5G mobile communications use frequencies of around 28 GHz or 39 GHz, so for 5G mobile communications, the length "a" of one direction DR1 of each of the first conductive patterns (AP1 to AP4) can be approximately 2.17 mm, and the length "b" of the other direction DR2 can be approximately 2.06 mm. The planar area of ​​each of the first conductive patterns (AP1 to AP4) is approximately 4 to 5 mm 2 It could be. Furthermore, the distance (c) between the centers of adjacent first conductive patterns in one direction DR1 may be approximately 6 mm.

[0147] Each of the first conductive patterns (AP1 to AP4) is connected to an RF driver 350 via a feed line (FDL). The first conductive patterns (AP1 to AP4) are commonly connected to one feed wiring FDL. The feed wiring FDL connected to one of the first conductive patterns (AP1 to AP4) and the feed wiring FDL connected to another of the first conductive patterns (AP1 to AP4) become one between the other one of the first conductive patterns and the further other first conductive pattern.

[0148] The RF driver 350 changes the phase of the RF signal received by the first conductive patterns (AP1 to AP4) via the feed wiring FDL, and amplifies the amplitude. Furthermore, the RF driver 350 transmits an RF signal to the first conductive patterns (AP1 to AP4) via the feed wiring FDL.

[0149] 23 is an enlarged plan view showing the first conductive pattern of FIG. 22 in detail, and FIG. 24 is an enlarged plan view showing the intersection of the first conductive pattern of FIG. 23 in detail. FIG. 24 shows a first conductive pattern AP having a mesh structure with one diamond-shaped plane. 23 and 24, the first conductive pattern AP is formed in a mesh structure or a net structure on a plane. The width of the first conductive pattern AP is approximately 2.5 μm, and the thickness is approximately 2400 Å or less.

[0150] The first conductive pattern AP has a planar shape in which a quadrangular pattern such as a diamond is repeated. In this case, the length "d" of the diamond in one direction DR1 is shorter than the length "e" of the diamond in the other direction DR2. The length "d" of the diamond in one direction DR1 may be half the length "e" of the diamond in the other direction DR2. For example, the length "d" of the first conductive pattern AP defined as a diamond in one direction DR1 may be approximately 260 μm, and the length "e" of the first conductive pattern AP in the other direction DR2 may be approximately 130 μm. Furthermore, the angle θ1 between the vertices of the diamonds facing each other in one direction DR1 is greater than the angle θ2 between the vertices of the diamonds facing each other in the other direction DR2.

[0151] Each vertex of the diamond is an intersection where at least two edges intersect. In order to prevent the first conductive pattern AP from being formed in a reverse tapered shape due to over-etching at the intersection, a dummy pattern DM is formed at the intersection. In one direction DR1, the minimum and maximum distances of the dummy patterns DM are shorter than the minimum and maximum distances of the dummy patterns DM in the other direction DR2. For example, in one direction DR1, the minimum distance of the dummy patterns DM may be approximately 9.25 μm and the maximum distance may be approximately 11 μm. In the other direction DR2, the minimum distance of the dummy patterns DM may be approximately 13.5 μm and the maximum distance may be approximately 15.5 μm.

[0152] FIG. 25 is a cross-sectional view showing an example taken along line II-II' in FIG. Referring to FIG. 25, the first conductive pattern AP is disposed on the first sensor insulating film TINS1. The first conductive pattern AP is formed in the same layer and made of the same material as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE. In addition, the first conductive pattern AP is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4).

[0153] In order for the patch antenna to radiate electromagnetic waves, the second conductive pattern GP that overlaps with the first conductive pattern AP in the third direction (Z-axis direction) is necessary. However, if the first sensor insulating film TINS1 between the first conductive pattern AP and the second conductive pattern GP is made of a material with a low dielectric constant, the second conductive pattern GP can be omitted. The second conductive pattern GP is disposed on the second buffer film BF2. The second conductive pattern GP may be formed in the same layer and made of the same material as the first connecting portion BE1. Furthermore, even when the first conductive pattern AP is formed in a loop or coil shape and used as an antenna for an RFID tag for short-range communication, forming a second conductive pattern GP that overlaps the first conductive pattern AP can reduce or prevent the first electrode 171 and the second electrode 173 of the display layer DISL from being affected by the electromagnetic waves radiated by the first conductive pattern AP.

[0154] As shown in FIG. 25, when the first conductive pattern AP is arranged on the first sensor insulating film TINS1 and the second conductive pattern GP is arranged on the second buffer film BF2, the first conductive pattern of the antenna area APA can be formed without adding any additional process. On the other hand, when the first conductive pattern AP overlaps with the first ground wiring GRL1 and the third ground wiring GRL3 in the antenna area APA, the first ground wiring GRL1 and the third ground wiring GRL3 arranged in the antenna area APA are arranged on the second buffer film BF2, and the first ground wiring GRL1 and the third ground wiring GRL3 arranged in other areas excluding the antenna area APA are arranged on the first sensor insulating film TINS1. The second conductive pattern GP is connected to at least one of the first ground wiring GRL1 and the third ground wiring GRL3.

[0155] FIG. 26 is a cross-sectional view showing an example taken along line II-II' in FIG. Referring to FIG. 26, the first conductive pattern AP is disposed on the second sensor insulating film TINS2. The second conductive pattern GP overlapping the first conductive pattern AP in the third direction (Z-axis direction) is disposed on the first sensor insulating film TINS1. The second conductive pattern GP is formed in the same layer and made of the same material as the driving electrode TE, the sensing electrode RE, and the dummy pattern DE. In addition, the second conductive pattern GP is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4). On the other hand, when the first conductive pattern AP overlaps with the first ground wiring GRL1 and the third ground wiring GRL3 in the antenna area APA, the second conductive pattern GP can be omitted.

[0156] FIG. 27 is a cross-sectional view showing an example taken along line II-II' in FIG. Referring to FIG. 27, the first conductive pattern AP includes a first sub-conductive pattern SAP1 and a second sub-conductive pattern SAP2. The first sub-conductive pattern SAP1 is disposed on the first sensor insulating film TINS1. The first sub-conductive pattern SAP1 is formed in the same layer and made of the same material as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE. In addition, the first sub-conductive pattern SAP1 is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4).

[0157] The second sub-conductive pattern SAP2 is disposed on the second sensor insulating film TINS2. The second sub-conductive pattern SAP2 is connected to the first sub-conductive pattern SAP1 via a second contact hole H2 that penetrates the second sensor insulating film TINS2 and exposes the first sub-conductive pattern SAP1. The second conductive pattern GP, ​​which overlaps with the first conductive pattern AP in the third direction (Z-axis direction), is disposed on the second buffer film BF2. The second conductive pattern GP is formed in the same layer and made of the same material as the first connecting portion BE1.

[0158] On the other hand, when the first conductive pattern AP overlaps with the first ground wiring GRL1 and the third ground wiring GRL3 in the antenna area APA, the first ground wiring GRL1 and the third ground wiring GRL3 arranged in the antenna area APA are arranged on the second buffer film BF2, and the first ground wiring GRL1 and the third ground wiring GRL3 arranged in other areas excluding the antenna area APA are arranged on the first sensor insulating film TINS1. The second conductive pattern GP is connected to at least one of the first ground wiring GRL1 and the third ground wiring GRL3.

[0159] FIG. 28 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention. The embodiment of FIG. 28 differs from the embodiment of FIG. 17 in that the antenna area APA is arranged in the sensor peripheral area TPA on the four outer sides of the sensor area TSA. Figure 28 illustrates an example in which the antenna area APA including the first conductive pattern AP (not shown) is arranged in the sensor peripheral area TPA on the upper outer side of the sensor area TSA, the sensor peripheral area TPA on the right outer side of the sensor area TSA, and the corner where the upper and right sides of the display panel 300 meet, as shown in Figure 4. 28, the first conductive pattern AP of the antenna area APA is electrically connected to the display circuit board 310 on which the RF driver 350 is disposed, as in FIG.

[0160] Referring to FIG. 28, the first conductive pattern AP of the antenna area APA is arranged in the sensor peripheral area TPA on the upper, left, right and lower outer sides of the sensor area TSA. Alternatively, the first conductive pattern AP of the antenna area APA is arranged so as to surround the upper side, left side, and right side of the sensor area TSA, excluding the lower side. Alternatively, the first conductive pattern AP of the antenna area APA is arranged so as to surround the sensor area TSA on four sides.

[0161] However, when the first conductive pattern AP of the antenna area APA is arranged to surround the sensor area TSA on four sides, it overlaps with the first drive wiring TL1, the second drive wiring TL2, and the sensing wiring RL below the sensor area TSA. In this case, in order to reduce the influence of the electromagnetic waves from the first conductive pattern of the antenna area APA on the first drive wiring TL1, the second drive wiring TL2, and the sensing wiring RL, guard wiring is further arranged in the third direction (Z-axis direction) between the first conductive pattern and the first drive wiring TL1, between the first conductive pattern and the second drive wiring TL2, and between the first conductive pattern and the sensing wiring RL.

[0162] Alternatively, the first conductive pattern AP of the antenna area APA is arranged so as to overlap with the first ground wiring GRL1, the third ground wiring GRL3, the first guard wiring GL1, and the fourth guard wiring GL4 in the third direction (Z-axis direction). Alternatively, the first conductive pattern AP of the antenna area APA is arranged so as to overlap with the first ground wiring GRL1 and the third ground wiring GRL3 in the third direction (Z-axis direction).

[0163] The first conductive pattern AP of the antenna area APA includes conductive pads CP arranged adjacent to the sensor pads (TP1, TP2) on one side of the display panel 300 to be electrically connected to the display circuit board 310 on which the RF driver 350 is arranged. One of the conductive pads CP is arranged on the outer left side of the first sensor pad area TPA1 in which the first sensor pad TP1 is arranged, and is arranged on the outer right side of the second sensor pad area TPA2 in which the second sensor pad TP2 is arranged. The conductive pads CP are electrically connected to the display circuit board 310 by an anisotropic conductive film.

[0164] The first conductive pattern AP of the antenna area APA can be formed in a loop or coil shape, in which case the first antenna of the antenna area APA is formed as an antenna for an RFID tag and can therefore be used as an antenna for short-range communication. Alternatively, the first conductive pattern AP of the antenna area APA can be formed into a square patch, in which case the first antenna of the antenna area APA is formed as a patch antenna, and can be used as an antenna for mobile communications. The cross-sectional structure of the antenna area APA shown in FIG. 28 may be substantially similar to those shown in FIGS.

[0165] FIG. 29 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention. The embodiment of FIG. 29 differs from the embodiment of FIG. 17 in that the antenna area APA is arranged on one side of the display panel 300 outside the ground wiring. 29, the antenna area APA of the display panel 300 is disposed outside the third ground wiring GRL3, which is disposed at the outermost edge of the upper side of the display panel 300.

[0166] In this case, the antenna area APA is completely spatially separated from the sensor area TSA and the sensor peripheral area TPA so as not to overlap in the third direction (Z-axis direction). In addition, a third ground wiring GRL3 is disposed between the antenna area APA and the sensor area TSA. Therefore, it is possible to minimize or prevent the sensor electrodes TE, RE of the sensor area TSA from being affected by the electromagnetic waves of the first conductive pattern AP of the antenna area APA. Although FIG. 29 illustrates an example in which the antenna area APA is disposed on the upper edge of the display panel, the present invention is not limited to this. For example, the antenna area APA may be disposed outside the first ground line GRL1, which is disposed on the outermost right side of the display panel 300. Alternatively, the antenna area APA may be disposed outside the third ground line GRL3, which is disposed on the outermost left side of the display panel 300.

[0167] Although FIG. 29 illustrates the first conductive patterns AP formed in eight square patches, the number of the first conductive patterns AP is not limited to this. 29, a second flexible film 360 is disposed above the display panel 300, on which an RF driver 350 electrically connected to the first conductive pattern AP of the antenna area APA is disposed as in FIG. The first conductive pattern AP of the antenna area APA may be formed into a square patch, in which case the first antenna of the antenna area APA is formed as a patch antenna, and can be used as an antenna for mobile communication. Alternatively, the first conductive pattern AP of the antenna area APA may be formed in a loop or coil shape, in which case the first antenna of the antenna area APA is formed as an antenna for an RFID tag and can therefore be used as an antenna for short-range communication. The cross-sectional structure of the antenna area APA shown in FIG. 29 may be substantially similar to that shown in FIGS.

[0168] FIG. 30 is a plan view showing a sensor electrode layer of a display panel according to one embodiment of the present invention, and FIG. 31 is a diagram showing an example of a sensor driver connected to the sensor electrode and an RF driver connected to a first conductive pattern. The embodiment of FIG. 30 differs from the embodiment of FIG. 17 in that the first conductive pattern AP of the antenna area APA is arranged in the sensor area TSA. Referring to FIG. 30, the first conductive pattern AP is electrically isolated from the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE. The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, and the first conductive patterns AP are arranged to be spaced apart from one another.

[0169] A part of the sensing electrode RE is arranged so as to be closer to the first conductive pattern AP than the dummy pattern DE, and the rest of the sensing electrode RE is arranged so as to be closer to the dummy pattern DE than the first conductive pattern AP. The first conductive pattern AP and the dummy pattern DE are each disposed so as to be surrounded by the sensing electrode RE. Although FIG. 30 illustrates an example in which each of the first conductive patterns AP is arranged to be surrounded by the sensing electrodes RE, the present invention is not limited to this. Each of the first conductive patterns AP may be arranged to be surrounded by the drive electrodes TE instead of the sense electrodes RE. The first conductive patterns AP adjacent in the first direction (X-axis direction) can be connected via a third connection portion BE3. The first conductive patterns AP adjacent in the second direction (Y-axis direction) can be connected via a fourth connection portion BE4.

[0170] 30, a second flexible film 360 on which an RF driver 350 electrically connected to the first conductive pattern AP of the antenna area APA is disposed is disposed on the upper side of the display panel 300 as in FIG. The first conductive pattern AP is connected to the conductive pads CP by feed wiring FDL in the sensor peripheral area TPA, and the second flexible film 360 is electrically connected to the conductive pads CP by an anisotropic conductive film. Therefore, the first conductive pattern AP is electrically connected to the RF driver 350 as shown in FIG. As shown in FIG. 30, a first conductive pattern AP is formed in place of a dummy pattern DE formed to reduce parasitic capacitance between the second electrode of the light emitting device layer EML and the driving electrode TE or the sensing electrode RE. Therefore, the first conductive pattern AP can be formed in the sensor area TSA without adding an additional process.

[0171] FIG. 32 is an enlarged plan view showing the sensor electrode and the first conductive pattern of FIG. 30 in detail. For convenience of explanation, FIG. 32 shows only two sensing electrodes RE adjacent to each other in the first direction (X-axis direction) and two driving electrodes TE adjacent to each other in the second direction (Y-axis direction). The embodiment of Figure 32 differs from the embodiment of Figure 19 in that the first conductive pattern AP is surrounded by a sensing electrode RE instead of a dummy pattern DE, and a third connection portion BE3 for connecting adjacent first conductive patterns AP in the first direction (X-axis direction) and a fourth connection portion BE4 for connecting adjacent first conductive patterns AP in the second direction (Y-axis direction) are further formed.

[0172] Referring to FIG. 32, each of the first conductive patterns AP has a quadrangular planar shape, but is not limited thereto. The first conductive pattern AP, the third connecting portion BE3, and the fourth connecting portion BE4 are formed in a mesh structure or a net structure on a plane. Each of the first conductive patterns AP is disposed so as to be surrounded by each of the sensing electrodes RE. The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, and the first conductive patterns AP are electrically isolated from each other. The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, and the first conductive patterns AP are arranged to be spaced apart from one another.

[0173] The first conductive patterns AP adjacent to each other in the first direction (X-axis direction) are connected via a third connection portion BE3. The third connection portion BE3 includes a first sub-connection portion BE31 and a second sub-connection portion BE32 to electrically isolate the third connection portion BE3 from the sensing electrode RE and the driving electrode TE. The first sub-connection portion BE31 is disposed in the same layer as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE. The first sub-connection portion BE31 electrically isolates the driving electrode TE, the sensing electrode RE, and the dummy pattern DE. The first sub-connection portion BE31 is disposed apart from the driving electrode TE, the sensing electrode RE, and the dummy pattern DE.

[0174] The second sub-connection portion BE32 is formed in a layer different from the driving electrode TE and the sensing electrode RE, and is connected to the first sub-connection portion BE31 through the third contact hole CNT3. For example, the first sub-connection portion BE31 is arranged on the first sensor insulating film TINS1 shown in FIG. 21, and the second sub-connection portion BE32 is arranged on the second buffer film BF2 shown in FIG. The second sub-connection portion BE32 overlaps with the driving electrode TE and the sensing electrode RE in the third direction (Z-axis direction). The second sub-connection portion BE32 is formed so as to be bent at least once. Although FIG. 32 illustrates an example in which the second sub-connection portion BE32 is bent into an angle bracket shape ("<" or ">"), the shape of the second sub-connection portion BE32 is not limited to this.

[0175] The first conductive patterns AP adjacent to each other in the second direction (Y-axis direction) are connected via a fourth connection portion BE4. The fourth connection portion BE4 is disposed in the same layer as the drive electrodes TE, the sensing electrodes RE, and the dummy patterns DE. The fourth connection portion BE4 electrically separates the drive electrode TE, the sensing electrode RE, and the dummy pattern DE. The fourth connection portion BE4 is disposed apart from the driving electrode TE, the sensing electrode RE, and the dummy pattern DE. As shown in FIG. 32, the first conductive patterns AP adjacent in the first direction (X-axis direction) are connected via the third connection portion BE3, and the first conductive patterns AP adjacent in the second direction (Y-axis direction) are connected via the fourth connection portion BE4, thereby electrically isolating the first conductive patterns AP from the driving electrodes TE and the sensing electrodes RE.

[0176] FIG. 33 is a cross-sectional view showing an example taken along line III-III' in FIG. Referring to FIG. 33, the first conductive pattern AP is disposed on the first sensor insulating film TINS1. The first conductive pattern AP is formed in the same layer and made of the same material as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE. In addition, the first conductive pattern AP is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4).

[0177] The second conductive pattern GP is disposed on the second buffer film BF2. The second conductive pattern GP is formed in the same layer and made of the same material as the first connecting portion BE1. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction). Each of the first conductive patterns AP may be formed into a loop, a coil, or a square patch. When each of the first conductive patterns AP is formed in a loop or coil shape, it can be used as an antenna for an RFID tag for short-range communication. Alternatively, when each of the first conductive patterns AP is formed into a square patch, it can be used as a patch antenna for mobile communications.

[0178] FIG. 34 is a cross-sectional view showing an example taken along line III-III' in FIG. Referring to FIG. 34, the first conductive pattern AP is disposed on the second sensor insulating film TINS2. In order to reduce the influence of the electromagnetic waves of the first conductive pattern AP on the driving electrode TE and the sensing electrode RE, the minimum distance between the first conductive pattern AP and the sensing electrode RE and the minimum distance between the first conductive pattern AP and the driving electrode TE may be 200 μm or more. For this reason, the thickness of the second sensor insulating film TINS2 may be 200 μm or more. The second conductive pattern GP is disposed on the first sensor insulating film TNIS1. The second conductive pattern GP is formed in the same layer and made of the same material as the driving electrode TE, the sensing electrode RE, and the dummy pattern DE.

[0179] In addition, the second conductive pattern GP is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4). The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction). Each of the first conductive patterns AP is formed into a loop, a coil, or a square patch. When each of the first conductive patterns AP is formed in a loop or coil shape, it can be used as an antenna for an RFID tag for short-range communication. Alternatively, when each of the first conductive patterns AP is formed into a square patch, it can be used as a patch antenna for mobile communications.

[0180] FIG. 35 is a cross-sectional view showing an example taken along line III-III' in FIG. The embodiment of FIG. 35 differs from the embodiment of FIG. 34 in that the second conductive pattern GP is formed in two layers. The second conductive pattern GP includes a first sub-conductive pattern SGP1 and a second sub-conductive pattern SGP2. The first sub-conductive pattern SGP1 is disposed on the second buffer film BF2. The first sub-conductive pattern SGP1 is formed in the same layer and made of the same material as the first connection portion BE1. The second sub-conductive pattern SGP2 is disposed on the first sensor insulating film TINS1. The second sub-conductive pattern SGP2 is formed in the same layer and made of the same material as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE.

[0181] In addition, the second sub-conductive pattern SGP2 is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4). The second sub-conductive pattern SGP2 is connected to the first sub-conductive pattern SGP1 via a contact hole that penetrates the first sensor insulating film TINS1.

[0182] FIG. 36 is an enlarged plan view showing the sensor electrode and the first conductive pattern of FIG. 30 in detail. The embodiment of FIG. 36 differs from the embodiment of FIG. 32 in that a guard pattern GAP is further disposed between the sensing electrode RE and the first conductive pattern AP. Referring to FIG. 36, the guard pattern GAP is arranged to surround the first conductive pattern AP.

[0183] The guard pattern GAP is disposed apart from the first sub-connection portion BE31 of the third connection portion BE3. The guard pattern GAP can be electrically floating or can be connected to at least one of the ground wirings (GRL1 to GRL3) in the sensor peripheral area TPA and receive a ground voltage. As shown in FIG. 36, a guard pattern GAP is arranged between the sensing electrode RE and the first conductive pattern AP, and the guard pattern GAP can prevent the driving electrode TE and the sensing electrode RE from being affected by the electromagnetic waves from the first conductive pattern AP.

[0184] FIG. 37 is a cross-sectional view showing an example taken along line VV' in FIG. Referring to FIG. 37, the first conductive pattern AP and the guard pattern GAP are disposed on the first sensor insulating film TINS1. The first conductive pattern AP and the guard pattern GAP are formed in the same layer and made of the same material as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE. In addition, the first conductive pattern AP is formed in the same layer and made of the same material as the first drive wiring TL1, the second drive wiring TL2, the sensing wiring RL, the guard wirings (GL1, GL2, GL3, GL4, GL5), and the ground wirings (GRL1, GRL2, GRL3, GRL4).

[0185] The second conductive pattern GP is disposed on the second buffer film BF2. The second conductive pattern GP is formed in the same layer and made of the same material as the first connecting portion BE1. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction). Each of the first conductive patterns AP may be formed into a loop, a coil, or a square patch. When each of the first conductive patterns AP is formed in a loop or coil shape, it can be used as an antenna for an RFID tag for short-range communication. Alternatively, when each of the first conductive patterns AP is formed into a square patch, it can be used as a patch antenna for mobile communications.

[0186] FIG. 38 is a cross-sectional view showing an example taken along line VV' in FIG. The embodiment of FIG. 38 differs from the embodiment of FIG. 37 in that each guard pattern GAP includes a first sub-guard pattern SGAP1 and a second sub-guard pattern SGAP2. Referring to FIG. 38, the first sub-guard pattern SGAP1 is disposed on the second buffer film BF2. The first sub-guard pattern SGAP1 is formed in the same layer and made of the same material as the first connecting portion BE1. The second sub-guard pattern SGAP2 is disposed on the first sensor insulating film TINS1. The second sub-guard pattern SGAP2 is formed in the same layer and made of the same material as the driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE.

[0187] In addition, the second sub-guard pattern SGAP2 is formed in the same layer and made of the same material as the first drive line TL1, the second drive line TL2, the sensing line RL, the guard lines (GL1, GL2, GL3, GL4, GL5), and the ground lines (GRL1, GRL2, GRL3, GRL4). The second sub-guard pattern SGAP2 is connected to the first sub-guard pattern SGAP1 via a contact hole that penetrates the first sensor insulating film TINS1. As shown in Figure 38, when the guard pattern GAP is formed of two layers, a first sub-guard pattern SGAP1 and a second sub-guard pattern SGAP2, the driving electrodes TE and the sensing electrodes RE can be more effectively shielded from being affected by electromagnetic waves from the first conductive pattern AP.

[0188] FIG. 39 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention. The embodiment of FIG. 39 differs from the embodiment of FIG. 30 in that the proximity sensor electrodes PE are arranged in the sensor area TSA. Referring to FIG. 39, the proximity sensor electrode PE is electrically isolated from the drive electrode TE, the sensing electrode RE, the dummy pattern DE, and the first conductive pattern AP. The drive electrode TE, the sensing electrode RE, the dummy pattern DE, the first conductive pattern AP, and the proximity sensor electrode PE are arranged to be spaced apart from one another.

[0189] A part of the drive electrodes TE is arranged so as to be more adjacent to the proximity sensor electrodes PE than the dummy patterns DE, and the rest of the drive electrodes TE is arranged so as to be more adjacent to the dummy patterns DE than the proximity sensor electrodes PE. The proximity sensor electrodes PE and the dummy patterns DE are each arranged so as to be surrounded by the drive electrodes TE. FIG. 39 illustrates an example in which each of the first conductive patterns AP is surrounded by the sensing electrodes RE, and each of the proximity sensor electrodes PE is surrounded by the driving electrodes TE, but the present invention is not limited to this. Each of the first conductive patterns AP can be arranged so as to be surrounded by the drive electrodes TE, and each of the proximity sensor electrodes PE can be arranged so as to be surrounded by the sensing electrodes RE.

[0190] The proximity sensor electrodes PE adjacent in the first direction (X-axis direction) are connected via a fifth connecting portion BE5. The proximity sensor electrodes PE adjacent in the second direction (Y-axis direction) are connected via a sixth connecting portion BE6. The proximity sensor electrode PE is connected to the proximity sensor wiring PL in the sensor peripheral area TPA as shown in FIG. 39, and is thereby electrically connected to the second sensor sensing portion 334 as shown in FIG. As shown in FIG. 39, a proximity sensor electrode PE is formed in place of a dummy pattern DE formed to reduce parasitic capacitance between the second electrode of the light emitting element layer EML and the driving electrode TE or the sensing electrode RE. Therefore, the proximity sensor electrode PE can be formed in the sensor area TSA without adding a separate process.

[0191] FIG. 40 is a diagram showing an example of a sensor driver connected to a sensor electrode and an RF driver connected to a first conductive pattern. The embodiment of FIG. 40 differs from the embodiment of FIG. 18 in that the sensor driving unit 330 includes a second sensor sensing unit 334 and a second analog-to-digital conversion unit 335 . Referring to FIG. 40, the second sensor sensing unit 334 senses the voltage charged in the second mutual capacitance Cm2 through the proximity sensor wiring PL electrically connected to the proximity sensor electrode PE. As shown in FIG. 40, a second mutual capacitance Cm2 may be formed between the drive electrode TE and the proximity sensor electrode PE.

[0192] The second sensor sensing unit 334 includes a second operational amplifier OP2, a second feedback capacitor Cfb2, and a second reset switch RSW2. The second operational amplifier OP2, the second feedback capacitor Cfb2, and the second reset switch RSW2 of the second sensor sensing unit 334 are substantially similar to the first operational amplifier OP1, the first feedback capacitor Cfb1, and the first reset switch RSW1 of the first sensor sensing unit 332. The second storage capacitor is connected between the output terminal out of the second operational amplifier OP2 and ground to store the output voltage Vout2 of the second operational amplifier OP2. The second analog-to-digital converter 335 converts the output voltage stored in the second storage capacitor into second digital data and outputs the second digital data. As shown in FIG. 40, the sensor electrode layer SENL detects the voltage charged in the second mutual capacitance Cm2 to determine whether an object has approached the sensor electrode layer SENL.

[0193] 41 is an enlarged plan view showing the sensor electrode and the first conductive pattern in detail in FIG. 39, and FIG. 42 is a cross-sectional view showing an example taken along line VI-VI' in FIG. For convenience of explanation, FIG. 41 shows only two sensing electrodes RE adjacent to each other in the first direction (X-axis direction) and two driving electrodes TE adjacent to each other in the second direction (Y-axis direction). The embodiment of Figure 41 differs from the embodiment of Figure 30 in that the proximity sensor electrode PE is surrounded by a sensing electrode RE, and a fifth connection portion BE5 for connecting adjacent proximity sensor electrodes PE in the first direction (X-axis direction) and a sixth connection portion BE6 for connecting adjacent proximity sensor electrodes PE in the second direction (Y-axis direction) are further formed.

[0194] Referring to FIG. 41, each of the proximity sensor electrodes PE has a rectangular planar shape, but is not limited to this. The proximity sensor electrode PE, the fifth connecting portion BE5, and the sixth connecting portion BE6 are formed in a mesh structure or net structure on a plane. Each of the proximity sensor electrodes PE is arranged so as to be surrounded by each of the drive electrodes TE. The drive electrode TE, the sense electrode RE, the first conductive pattern AP, and the proximity sensor electrode PE are electrically isolated from each other. The drive electrode TE, the sensing electrode RE, the dummy pattern DE, the first conductive pattern AP, and the proximity sensor electrode PE are arranged to be spaced apart from one another.

[0195] The proximity sensor electrodes PE adjacent in the first direction (X-axis direction) are connected via a fifth connecting portion BE5. The proximity sensor electrode PE and the fifth connecting part BE5 are arranged on the first sensor insulating film TINS1 as shown in FIG. The proximity sensor electrode PE and the fifth connection portion BE5 are disposed in the same layer as the drive electrode TE, the sensing electrode RE, and the first conductive pattern AP. The fifth connection portion BE5 electrically separates the driving electrode TE, the sensing electrode RE, and the first conductive pattern AP. The fifth connection portion BE5 is disposed apart from the driving electrode TE, the sensing electrode RE, and the first conductive pattern AP. The proximity sensor electrodes PE adjacent in the second direction (Y-axis direction) are connected via a sixth connecting portion BE6. The sixth connection portion BE6 includes a first sub-connection portion BE61 and a second sub-connection portion BE62 to electrically separate the sixth connection portion BE6 from the sensing electrode RE, the driving electrode TE, and the first conductive pattern AP.

[0196] The first sub-connection portion BE61 is disposed in the same layer as the driving electrode TE, the sensing electrode RE, and the first conductive pattern AP. The first sub-connection portion BE61 electrically separates the driving electrode TE, the sensing electrode RE, and the first conductive pattern AP. The first sub-connection portion BE61 is disposed to be spaced apart from the driving electrode TE, the sensing electrode RE, and the first conductive pattern AP. The second sub-connection portion BE62 is formed in a layer different from the driving electrode TE, the sensing electrode RE, and the first conductive pattern AP, and is connected to the first sub-connection portion BE61 through the fourth contact hole CNT4. For example, the first sub-connection portion BE61 is arranged on the first sensor insulating film TINS1 shown in FIG. 42, and the second sub-connection portion BE62 is arranged on the second buffer film BF2 shown in FIG. The second sub-connection portion BE62 overlaps with the driving electrode TE, the sensing electrode RE, and the first sub-connection portion BE31 of the third connection portion BE3 in the third direction (Z-axis direction).

[0197] The second sub-connection portion BE62 is formed so as to be bent at least once. Although FIG. 41 illustrates an example in which the second sub-connection portion BE62 is bent into an angle bracket shape ("<" or ">"), the shape of the second sub-connection portion BE62 is not limited to this. As shown in Figure 41, the proximity sensor electrodes PE adjacent in the first direction (X-axis direction) are connected via the fifth connection part BE5, and the proximity sensor electrodes PE adjacent in the second direction (Y-axis direction) are connected via the sixth connection part BE6, thereby allowing the proximity sensor electrodes PE to be electrically isolated from the driving electrode TE and the sensing electrode RE.

[0198] FIG. 43 is a diagram showing an example of a sensor electrode, a strain gauge, and a first conductive pattern, and FIG. 44 is a circuit diagram showing in detail the third sensor sensing unit of FIG. The embodiments of Figures 43 and 44 differ from the embodiment of Figure 40 in that the proximity sensor electrode PE is used as a pressure sensor electrode PRE for pressure sensing instead of proximity sensing, and the pressure sensor electrode PRE is electrically connected to a third sensor sensing unit 336 including a Wheatstone bridge circuit unit WB. Referring to FIGS. 43 and 44, the pressure sensor electrodes PRE can be connected together to act as a strain gauge.

[0199] The third sensor sensing section 336 includes a Wheatstone bridge circuit section WB. The third sensor detection unit 336 further includes an analog-to-digital converter and a processor for detecting the first voltage Va output from the Wheatstone bridge circuit unit WB. The Wheatstone bridge circuit section WB includes a first node N1, a second node N2, a first output node N3, and a second output node N4. The first node N1 is supplied with a driving voltage Vs, and the second node N2 is connected to the ground GND. The Wheatstone bridge circuit unit WB further includes a first resistor WBa connected to the second node N2 and the second output node N4, a second resistor WBb connected to the first node N1 and the second output node N4, and a third resistor WBc connected to the second node N2 and the first output node N3. The resistance value R1 of the first resistor WBa, the resistance value R2 of the second resistor WBb, and the resistance value R3 of the third resistor WBc each have a predetermined value. That is, the first resistor WBa to the third resistor WBc may be fixed resistors.

[0200] The Wheatstone bridge circuit section WB further includes an amplifier circuit OPA3 such as an operational amplifier. The amplifier circuit OPA3 includes an inverting input terminal, a non-inverting input terminal, and an output terminal. The electrical flow between the first output node N3 and the second output node N4 can be sensed through the amplifier circuit OPA3. That is, the amplifier circuit OPA3 can operate as a current measuring element or a voltage measuring element. One of the first output node N3 and the second output node N4 is electrically connected to one of the input terminals of the amplifier circuit OPA3, and the other is electrically connected to the other input terminal of the amplifier circuit OPA3. For example, the first output node N3 is connected to the inverting input terminal of the amplifier circuit OPA3, and the second output node N4 is connected to the non-inverting input terminal of the amplifier circuit OPA3. The amplifier circuit OPA3 outputs a first voltage Va from its output terminal, which is proportional to the difference between the voltage values ​​input to both input terminals.

[0201] One end of the strain gauge SG formed by the pressure sensor electrode PRE is electrically connected to the first node N1, and the other end of the strain gauge SG formed by the pressure sensor electrode PRE is connected to the first output node N3. In this embodiment, the strain gauge SG, the first resistor WBa, the second resistor WBb, and the third resistor WBc may be connected to each other to implement a Wheatstone bridge circuit unit WB. When no pressure is applied, the product of the resistance Ra of the strain gauge SG and the resistance R1 of the first resistor WBa is substantially the same as the product of the resistance R2 of the second resistor WBb and the resistance R3 of the third resistor WBc. When the product of the resistance value Ra of the first pressure sensor electrode PE1 and the resistance value R1 of the first resistor WBa is the same as the product of the resistance value R2 of the second resistor WBb and the resistance value R3 of the third resistor WBc, the voltages of the first output node N3 and the second output node N4 are similar to each other. When the voltages of the first output node N3 and the second output node N4 are the same, the potential difference between the first output node N3 and the second output node N4 is 0V, and the first voltage Va output by the amplifier circuit OPA3 is 0V.

[0202] When a user applies pressure to the sensor area TSA, the shape of the pressure sensor electrode PRE is deformed according to the strength of the pressure, and the deformation changes the resistance value Ra of the strain gauge SG, thereby generating a potential difference between the first output node N3 and the second output node N4. When a potential difference occurs between the first output node N3 and the second output node N4, the amplifier circuit OPA3 outputs a value other than 0 V as the first voltage Va. Therefore, the touch pressure of the user can be detected by the first voltage Va output from the amplifier circuit OPA3.

[0203] FIG. 45 is an enlarged plan view showing the sensor electrode, the pressure sensor electrode, and the first conductive pattern in detail. For convenience of explanation, FIG. 45 shows only two sensing electrodes RE adjacent to each other in the first direction (X-axis direction) and two driving electrodes TE adjacent to each other in the second direction (Y-axis direction). The embodiment of FIG. 45 differs from the embodiment of FIG. 41 in that a pressure sensor electrode PRE is formed instead of the proximity sensor electrode PE.

[0204] Referring to FIG. 45, in order for the pressure sensor electrodes PRE to function as strain gauges SG, each pressure sensor electrode PRE has a zigzag shape (a meandering shape) including a plurality of bent portions. For example, Figure 45 illustrates a case where each pressure sensor electrode PRE is extended in one direction and then bent in another direction intersecting the one direction, and extended in the opposite direction to the one direction and then bent in the other direction, but this is not limited to this. As shown in Figure 45, each pressure sensor electrode PRE has a zigzag shape including multiple bends, so the shape of the pressure sensor electrode PRE is deformed by the user's touch pressure, and the presence or absence of the user's touch pressure is determined based on the change in resistance of the pressure sensor electrode PRE.

[0205] FIG. 46 is a plan view showing a sensor electrode layer of a display panel according to an embodiment of the present invention. Figure 46 mainly describes the case where the sensor electrodes (TE, RE) of the sensor electrode layer SENL include two types of electrodes, for example, a driving electrode TE and a sensing electrode RE, and are driven in a one-layer mutual capacitance method in which a driving signal is applied to the driving electrode TE and then the voltage charged in the mutual capacitance is sensed via the sensing electrode RE. For convenience of explanation, FIG. 46 shows only the sensor electrodes (TE, RE), dummy pattern DE, first conductive pattern AP, sensor wiring (TL, RL), feed wiring FDL, sensor pads (TP1, TP2), and ground wiring (GRL1 to GRL2).

[0206] Referring to FIG. 46, the driving electrodes TE are arranged in the second direction (Y-axis direction) in the odd-numbered columns, and the sensing electrodes RE are arranged in the second direction (Y-axis direction) in the even-numbered columns. The drive electrode TE and the sense electrode RE are electrically isolated from each other. The driving electrodes TE and the sensing electrodes RE are spaced apart from each other. At least one sensing electrode RE is arranged between a driving electrode TE arranged in one odd-numbered column and a driving electrode TE arranged in another odd-numbered column. At least one driving electrode TE is disposed between a sensing electrode RE arranged in one even-numbered column and a sensing electrode RE arranged in another even-numbered column. Each of the sensing electrodes RE is connected to at least one sensing line RL. The sensing electrodes RE arranged in odd-numbered rows are commonly connected to the sensing wiring RL arranged on one side thereof, while the sensing electrodes RE arranged in even-numbered rows are commonly connected to the sensing wiring RL arranged on the other side thereof.

[0207] Each of the drive electrodes TE is connected to at least one drive wiring TL. Each of the drive electrodes TE arranged in the odd-numbered rows is connected to a drive wiring TL arranged on one side thereof, and each of the drive electrodes TE arranged in the even-numbered rows is connected to a drive wiring TL arranged on the other side thereof. In the second direction (Y-axis direction), the length of the driving electrode TE may be longer than the length of the sensing electrode RE. For example, as shown in FIG. 46, the length of the driving electrode TE in the second direction (Y-axis direction) may be approximately twice the length of the sensing electrode RE. One driving electrode TE can overlap with a plurality of sensing electrodes RE adjacent to the driving electrode TE in the first direction (X-axis direction). For example, as shown in FIG. 46, one driving electrode TE may overlap with two sensing electrodes RE adjacent to the driving electrode TE in the first direction (X-axis direction). Mutual capacitance is formed between one driving electrode TE and each of the plurality of sensing electrodes RE adjacent to the driving electrode TE in the first direction (X-axis direction).

[0208] The dummy patterns DE are electrically isolated from the drive electrodes TE and the sense electrodes RE. The driving electrodes TE, the sensing electrodes RE, and the dummy patterns DE are arranged to be spaced apart from each other. Each of the dummy patterns DE is electrically floating. Each dummy pattern DE is arranged so as to be surrounded by each of the drive electrodes TE and the sensing electrodes RE. The first conductive pattern AP electrically separates the driving electrodes TE and the sensing electrodes RE. The driving electrode TE, the sensing electrode RE, and the first conductive pattern AP are spaced apart from each other. Each of the first conductive patterns AP is disposed so as to be surrounded by each of the driving electrodes TE. Alternatively, each of the first conductive patterns AP is arranged so as to be surrounded by each of the sensing electrodes RE. The first conductive patterns AP adjacent to each other in the second direction (Y-axis direction) are connected to one feed wiring FDL.

[0209] The sensor wirings (TL, RL) are arranged in the sensor area TSA and the sensor peripheral area TPA. The sensor wirings (TL, RL) are arranged in a sensor peripheral area TPA on one side outside the sensor area TSA. The sensor wiring (TL, RL) includes a sensing wiring RL connected to the sensing electrode RE and a drive wiring TL connected to the drive electrode TE. The feed wiring FDL is connected to the plurality of first conductive patterns AP. The feed wiring FDL is arranged on one side of the driving electrodes TE arranged in any one of the columns. Each of the feed lines FDL is connected to one of the first sensor pad TP1 and the second sensor pad TP2. The first sensor pad TP1 and the second sensor pad TP2 are connected to the display circuit board 310 via the anisotropic conductive film, so that the first conductive pattern AP is electrically connected to the RF driver 350 disposed on the display circuit board 310. The first conductive pattern AP can be used as an antenna for short-range communication such as an antenna for an RFID tag, or as a patch antenna for mobile communication.

[0210] A ground voltage is applied to the first ground wiring GRL1 and the second ground wiring GRL2. The first ground wiring GRL1 is arranged in the sensor peripheral area TPA on the left outer side of the sensor area TSA. The second ground wiring GRL2 is arranged in the sensor peripheral area TPA on the right outer side of the sensor area TSA and in the sensor peripheral area TPA on the upper outer side.

[0211] FIG. 47 is an enlarged plan view showing the sensor electrode and the first conductive pattern of FIG. 46 in detail. For convenience of explanation, FIG. 47 shows only the drive electrode TE surrounding the first conductive pattern AP. Referring to FIG. 47, the driving electrodes TE, the first conductive patterns AP, the guard patterns GAP, the feed wirings FDL, and the driving wirings TL are formed in a mesh structure or a net structure on a plane.

[0212] The drive electrode TE is formed in the shape of a rectangular window frame with a hole in the center. The drive electrode TE includes an empty space formed in the center. The first conductive pattern AP is disposed in the empty space of the drive electrode TE. The first conductive pattern AP is disposed so as to be surrounded by the driving electrode TE. Although FIG. 47 illustrates an example in which the first conductive pattern AP has a rectangular shape when viewed from above, the planar shape of the first conductive pattern AP is not limited to this. The driving electrode TE includes an open area OA connecting an empty space with one outer side of the driving electrode TE. For this reason, the feed wiring FDL is connected to the first conductive pattern AP via the open area OA of the drive electrode TE. Therefore, the driving electrode TE is disposed apart from the first conductive pattern AP and is electrically insulated from them.

[0213] A guard pattern GAP is formed between the first conductive pattern AP and the drive electrode TE. The guard pattern GAP is electrically floating and can be connected to at least one of the ground wirings (GRL1 to GRL2) in the sensor peripheral area TPA to receive the application of a ground voltage. By disposing the guard pattern GAP between the driving electrode TE and the first conductive pattern AP, it is possible to block the driving electrode TE from being affected by electromagnetic waves from the first conductive pattern AP. Although FIG. 47 illustrates a case where the feed wiring FDL is arranged on one side of the drive electrode TE and the drive wiring TL is arranged on the other side of the drive electrode TE, the present invention is not limited to this. The feed wiring FDL and the drive wiring TL may both be disposed on one side of the drive electrode TE.

[0214] FIG. 48 is a cross-sectional view showing an example taken along line VIII-VIII' in FIG. Referring to FIG. 48, the driving electrodes TE, the guard pattern GAP, and the first conductive pattern AP are disposed on the second buffer film BF2. That is, the first conductive pattern AP is formed in the same layer and made of the same material as the driving electrodes TE and the guard pattern GAP. The first conductive pattern AP is formed in the same layer and made of the same material as the sensing electrodes RE, the dummy patterns DE, the driving lines TL, the sensing lines RL, and the feed lines FDL. Therefore, the first conductive pattern AP and the guard pattern GAP can be formed without adding any additional process.

[0215] The driving electrodes TE, the sensing electrodes RE, the dummy patterns DE, the driving lines TL, the sensing lines RL, the feed lines FDL, the guard patterns GAP, and the first conductive patterns AP are arranged to overlap with the pixel defining layer 180 in the third direction (Z-axis direction). Therefore, it is possible to prevent the brightness of the light output from the subpixel PX from being reduced due to the light being blocked by the drive electrode TE, the sensing electrode RE, the dummy pattern DE, the drive wiring TL, the sensing wiring RL, the feed wiring FDL, the guard pattern GAP, and the first conductive pattern AP.

[0216] FIG. 49 is a cross-sectional view showing an example taken along line VIII-VIII' in FIG. The embodiment of Figure 49 differs from the embodiment of Figure 48 in that a second conductive pattern GP that overlaps with the first conductive pattern AP in the third direction (Z-axis direction) is arranged on the second buffer film BF2, and the first conductive pattern AP is arranged on the first sensor insulating film TINS1. Referring to FIG. 49, the driving electrodes TE, the guard pattern GAP, and the second conductive pattern GP are disposed on the second buffer film BF2. That is, the second conductive pattern GP is formed in the same layer and made of the same material as the driving electrode TE and the guard pattern GAP. The second conductive pattern GP is formed in the same layer and made of the same material as the sensing electrode RE, the dummy pattern DE, the drive line TL, the sensing line RL, and the feed line FDL.

[0217] FIG. 50 is a cross-sectional view showing an example taken along line VIII-VIII' in FIG. The embodiment of FIG. 50 differs from the embodiment of FIG. 49 in that each guard pattern GAP includes a first sub-guard pattern SGAP1 and a second sub-guard pattern SGAP2. Referring to FIG. 50, the first sub-guard pattern SGAP1 is disposed on the second buffer film BF2.

[0218] The first sub-guard pattern SGAP1 is formed in the same layer and made of the same material as the driving electrode TE. The first sub-guard pattern SGAP1 is formed in the same layer and made of the same material as the sensing electrode RE, the dummy pattern DE, the drive line TL, the sensing line RL, the feed line FDL, and the second conductive pattern GP. The second sub-guard pattern SGAP2 is disposed on the first sensor insulating film TINS1. The second sub-guard pattern SGAP2 is formed in the same layer and made of the same material as the first conductive pattern AP. As shown in FIG. 50, when the guard pattern GAP is formed of two layers, a first sub-guard pattern SGAP1 and a second sub-guard pattern SGAP2, the driving electrode TE can be more effectively shielded from being affected by electromagnetic waves from the first conductive pattern AP.

[0219] FIG. 51 is a plan view showing a sensor electrode layer of a display panel according to one embodiment of the present invention. In Figure 51, the sensor electrode layer SENL includes two types of sensor electrodes (TE, RE), for example, a driving electrode TE and a sensing electrode RE, and is driven by a one-layer mutual capacitance method in which a driving signal is applied to the driving electrode TE and then the change in mutual capacitance is sensed through the sensing electrode RE. The embodiment of FIG. 51 differs from the embodiment shown in FIG. 46 in that the length of the driving electrodes TE in the second direction (Y-axis direction) is substantially the same as the length of the sensing electrodes RE.

[0220] Referring to FIG. 51, one driving electrode TE overlaps with a plurality of sensing electrodes RE adjacent to the driving electrode TE in the first direction (X-axis direction). Since the length of the driving electrode TE in the second direction (Y-axis direction) is substantially the same as the length of the sensing electrode RE, one driving electrode TE can overlap with half of one sensing electrode RE. Mutual capacitance may be formed between one driving electrode TE and each of the plurality of sensing electrodes RE adjacent to the driving electrode TE in the first direction (X-axis direction).

[0221] FIG. 52 is a plan view showing a sensor electrode layer of a display panel according to one embodiment of the present invention. Figure 52 mainly describes the case where the sensor electrode SE of the sensor electrode layer SENL includes one type of electrode and is driven using a one-layer self-capacitance method in which a drive signal is applied to the sensor electrode SE and then the voltage charged to the self-capacitance of the sensor electrode SE is sensed. For convenience of explanation, FIG. 52 shows only the sensor electrode SE, dummy pattern DE, first conductive pattern AP, dummy pattern DE, sensor wiring SEL, feed wiring FDL, sensor pads (TP1, TP2), and ground wiring (GRL1 to GRL2).

[0222] Referring to FIG. 52, the sensor electrodes SE are electrically isolated from each other. The sensor electrodes SE are spaced apart from one another. Each of the sensor electrodes SE is connected to a sensor wiring SEL. Although FIG. 52 illustrates an example in which each of the sensor electrodes SE is formed in a rectangular planar shape, the present invention is not limited to this. Each of the sensor electrodes SE is formed so as to surround either the dummy pattern DE or the first conductive pattern AP. Each dummy pattern DE is arranged so as to be surrounded by each sensor electrode SE. The sensor electrode SE and the dummy pattern DE are electrically isolated from each other. The sensor electrode SE and the dummy pattern DE are arranged to be spaced apart from each other. Each of the dummy patterns DE is electrically floating.

[0223] The first conductive pattern AP is electrically isolated from the sensor electrode SE. The sensor electrode SE and the first conductive pattern AP are disposed apart from each other. Each of the first conductive patterns AP is disposed so as to be surrounded by each of the sensor electrodes SE. The first conductive patterns AP adjacent to each other in the second direction (Y-axis direction) are connected to one feed wiring FDL. The sensor wiring SEL and the feed wiring FDL are arranged in the sensor area TSA and the sensor peripheral area TPA. The sensor wiring SEL and the feed wiring FDL are arranged in a sensor peripheral area TPA on one side outside the sensor area TSA. Each of the sensor wirings SEL is connected to a sensor electrode SE, and each of the feed wirings FDL is connected to a plurality of first conductive patterns AP. Each of the sensor wirings SEL is disposed on one side of the sensor electrode SE. Each of the feed wirings FDL is disposed on the other side of the sensor electrode SE.

[0224] The sensor electrodes SE, dummy patterns DE, first conductive patterns AP, sensor wiring SEL, and feed wiring FDL are formed in a mesh structure or a net structure on a plane. A ground voltage is applied to the first ground wiring GRL1 and the second ground wiring GRL2. The first ground wiring GRL1 is arranged in the sensor peripheral area TPA on the left outer side of the sensor area TSA. The second ground wiring GRL2 is arranged in the sensor peripheral area TPA on the right outer side of the sensor area TSA and in the sensor peripheral area TPA on the upper outer side. On the other hand, the connection between the sensor electrode SE and the sensor wiring SEL and the connection between the first conductive pattern AP and the feed wiring FDL are substantially similar to the connection between the drive electrode TE and the drive wiring TL and the connection between the first conductive pattern AP and the feed wiring FDL shown in Figure 47. Moreover, the cross-sectional structures of the sensor electrode SE and the first conductive pattern AP are substantially the same as the cross-sectional structures of the drive electrode TE and the first conductive pattern AP shown in FIGS. In addition, a guard pattern GAP is disposed between the sensor electrode SE and the first conductive pattern AP as shown in FIGS.

[0225] FIG. 53 is a diagram showing an example of a sensor driving unit connected to the sensor electrodes of FIG. For convenience of explanation, FIG. 53 shows the sensor driver 330 connected to one sensor electrode SE. Referring to FIG. 53, the sensor driving unit 330 includes a driving signal output unit 331, a first sensor sensing unit 332, and a first analog-to-digital conversion unit 333.

[0226] The drive signal output unit 331 outputs a touch drive signal TD to the sensor electrode SE via the sensor wiring SEL. The touch drive signal TD includes a plurality of pulses. The drive signal output unit 331 outputs the touch drive signal TD to the sensor wirings SEL in a predetermined order. The first sensor sensing unit 332 senses the voltage charged in the self-capacitance Cs via the sensor wiring SEL electrically connected to the sensor electrode SE. As shown in FIG. 53, a self-capacitance Cs is formed between the sensor electrode SE and another electrode overlapping it. The first sensor sensing unit 332 includes a first operational amplifier OP1, a first feedback capacitor Cfb1, and a first reset switch RSW1.

[0227] The first operational amplifier OP1, the first feedback capacitor Cfb1, and the first reset switch RSW1 of the first sensor sensing unit 332 are substantially the same as those described with reference to FIG. The first storage capacitor is connected between the output terminal out of the first operational amplifier OP1 and ground to store the output voltage Vout1 of the first operational amplifier OP1. The first analog-to-digital converter 333 converts the output voltage Vout1 stored in the first storage capacitor into first digital data and outputs the first digital data. According to the embodiment shown in FIG. 53, in the self-capacitance method, the self-capacitance Cs of the sensor electrode SE is charged with the touch drive signal TD, and then the voltage charged to the self-capacitance Cs is sensed to determine whether or not a user has touched the sensor.

[0228] FIG. 54 is a plan view showing a sensor electrode layer of a display panel according to one embodiment of the present invention. In FIG. 54, the case where the sensor electrode of the sensor electrode layer SENL is a pressure sensor electrode PRE that plays the role of a strain gauge SG will be mainly described. For convenience of explanation, FIG. 54 shows only the pressure sensor electrode PRE, the pressure sensing wiring PRL, the first conductive pattern AP, the feed wiring FDL, and the sensor pads (TP1, TP2).

[0229] Referring to FIG. 54, the display panel 300 is a foldable display panel that is folded along a folding line FOL. Although one folding line FOL is shown as an example in FIG. 54, the present invention is not limited to this. That is, the display panel 300 can be folded at a plurality of folding lines FOL. The pressure sensor electrode PRE includes a strain gauge SG. The strain gauge SG has a zigzag shape including a plurality of bent portions. For example, Figure 54 illustrates an example in which each pressure sensor electrode PRE is extended in a first direction (X-axis direction), then bent in a second direction (Y-axis direction), extended in the opposite direction to the first direction (X-axis direction), and then bent in the second direction (Y-axis direction), but this is not limited to this.

[0230] The pressure sensor electrode PRE is disposed in the sensor area TSA. Some of the pressure sensor electrodes PRE are arranged along the folding line FOL. When the display panel 300 is folded along the folding line FOL, the shape of the strain gauge SG of each of the pressure sensor electrodes PRE is deformed. Therefore, whether or not the display panel 300 is folded is determined depending on the resistance change of the strain gauge SG of each of the pressure sensor electrodes PRE.

[0231] The remaining pressure sensor electrodes PRE are arranged so as not to overlap with the folding line FOL. The shape of the strain gauge SG of each of the remaining pressure sensor electrodes PRE changes in response to the touch pressure of the user. Therefore, the presence or absence of the user's touch pressure is determined according to the resistance change of the strain gauge SG of each of the remaining pressure sensor electrodes PRE.

[0232] The strain gauge SG of each pressure sensor electrode PRE is connected to a pressure sensing wire PRL. One side of the strain gauge SG of each pressure sensor electrode PRE is connected to one of the pressure sensing wires PRL, and the other side of the strain gauge SG of each pressure sensor electrode PRE is connected to another pressure sensing wire PRL. The pressure sensing wiring PRL is connected to the sensor pads (TP1, TP2), and is thereby electrically connected to the sensor driving unit 330. The sensor driving unit 330 may include a third sensor sensing unit 336 as shown in FIG. 44, and the third sensor sensing unit 336 may be substantially similar to that shown in FIG.

[0233] When the first conductive pattern AP is arranged in the sensor peripheral area TPA, it is arranged in the sensor peripheral area on at least three sides outside the sensor area TSA. The first conductive pattern AP is arranged to surround the sensor area TSA on at least three sides. For example, the first conductive pattern AP is arranged so as to surround the upper side, left side, and right side of the sensor area TSA. The first conductive pattern AP is connected to the conductive pad CP below the sensor area TSA. When the first conductive pattern AP is arranged in the sensor area TSA, it is arranged so as not to overlap the pressure sensor electrodes PRE. The first conductive pattern AP is connected to a feed wiring FDL arranged in the sensor peripheral area TPA, and the feed wiring FDL is connected to a conductive pad CP. One end of the first conductive pattern AP is connected to a feed wiring FDL arranged on the outside left side of the sensor area TSA, and the other end of the first conductive pattern AP is connected to a feed wiring FDL arranged on the outside right side of the sensor area TSA.

[0234] The conductive pads CP are connected to the display circuit board 310 via an anisotropic conductive film. Therefore, the first conductive pattern AP is electrically connected to the RF driver 350 disposed on the display circuit board 310 . Although FIG. 54 shows an example in which the first conductive pattern AP is formed in a loop or coil shape, the present invention is not limited to this. The first conductive pattern AP may also be formed in the shape of a square patch. The first conductive pattern AP and the feed wiring FDL are disposed in the same layer as the pressure sensor electrode PRE and the pressure sensing wiring PRL. Therefore, the first conductive pattern AP and the feed wiring FDL can be formed without adding any additional process.

[0235] Figure 55 is a plan view showing a sensor electrode layer of a display panel according to one embodiment of the present invention, Figure 56 is an enlarged plan view of part A of Figure 55 showing in detail the sensor electrode and connection portion, Figure 57 is a cross-sectional view showing an example cut along line IX-IX' of Figure 56, and Figure 58 is a schematic side view showing an example of the display panel of Figure 55. The embodiment of FIGS. 55 to 58 differs from the embodiment of FIG. 17 in that the sensor electrodes (TE, RE) of the sensor electrode layer SENL are formed of transparent electrodes. Referring to FIGS. 55 to 58, the driving electrodes TE, the sensing electrodes RE, and the island electrodes TEI are formed of a transparent metal oxide (TCO) such as ITO or IZO that transmits light. As a result, even if the driving electrode TE, the sensing electrode RE, and the island electrode TEI overlap with the sub-pixels, the aperture ratio of the sub-pixels does not decrease. The first conductive pattern AP is omitted in FIG.

[0236] In order to prevent the moire phenomenon from occurring due to the driving electrodes TE and the sensing electrodes RE when a user views an image on the display panel 300, the driving electrodes TE and the sensing electrodes RE have uneven edges on a plane as shown in FIG. At this time, the convex portion on one side of the driving electrode TE corresponds to the concave portion on one side of the sensing electrode RE adjacent to the one side of the driving electrode TE. The recessed portion on one side of the driving electrode TE corresponds to the protruding portion on one side of the sensing electrode RE adjacent to the one side of the driving electrode TE. Each of the connection portions BE7 connects the driving electrode TE and the island electrode TEI. One end of each of the connection portions BE7 is connected to the driving electrode TE, and the other end is connected to the island electrode TEI. The island electrode TEI is surrounded by sensing electrodes RE.

[0237] As shown in FIG. 58, a second substrate SUB2 is added between the display layer DISL and the sensor electrode layer SENL of the display panel 300. That is, the sensor electrode layer SENL is disposed on the second substrate SUB2. In this case, the connection part BE7 is disposed on the second substrate SUB2 as shown in FIG.

[0238] The connection portion BE7 may be formed of, but is not limited to, a laminated structure of aluminum and titanium (Ti / Al / Ti), a laminated structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, and a laminated structure of APC alloy and ITO (ITO / APC / ITO). The second substrate SUB2 is made of an insulating material such as glass, quartz, or polymer resin. The second substrate SUB2 may be a rigid substrate or a flexible substrate that allows bending, folding, rolling, and the like. The first sensor insulating film TINS1 is formed on the connecting portion BE7. The first sensor insulating film TINS1 may be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.

[0239] A driving electrode TE, a sensing electrode RE, and an island electrode TEI are formed on the first sensor insulating film TINS1. Each of the driving electrodes TE is connected to the connection portion BE7 via a fifth contact hole CNT5 that penetrates the first sensor insulating film TINS1 and exposes the connection portion BE7. Each island electrode TEI is connected to the connection portion BE7 via a fifth contact hole CNT5 that penetrates the first sensor insulating film TINS1 and exposes the connection portion BE7. As a result, the driving electrode TE and the island electrode TEI are connected via the connection portion BE7. Therefore, the drive electrodes TE arranged in the second direction (Y-axis direction) are electrically connected.

[0240] The first conductive pattern AP is formed in the same layer and made of the same material as the driving electrode TE, the sensing electrode RE, and the island electrode TEI. Each of the first conductive patterns AP is formed of a transparent metal oxide (TCO) such as ITO or IZO that transmits light. Therefore, each of the first conductive patterns AP overlaps with the sub-pixel PX or the pixel defining film 180 in the third direction (Z-axis direction). At this time, in order to prevent the first conductive patterns AP from being visible to the user, the width of each of the first conductive patterns AP may be formed to be 2 μm or less. As shown in FIGS. 55 to 58, the first conductive pattern AP is made of a transparent metal oxide (TCO) such as ITO or IZO that transmits light, just like the driving electrode TE, the sensing electrode RE, and the island electrode TEI. Therefore, the first conductive pattern AP can be formed without adding an additional process.

[0241] FIG. 59 is a plan view showing a sensor electrode layer of a display panel according to one embodiment of the present invention. The embodiment of FIG. 59 differs from the embodiment of FIG. 15 in that through holes TH are formed in the sensor area TSA, and first conductive patterns AP are formed in the wiring area LA around the through holes TH. Referring to FIG. 59, a through-hole TH penetrating the display panel 300 is formed in the sensor area TSA. The driving electrodes TE and the sensing electrodes RE are not formed in the through holes TH. Although the through-hole TH has been illustrated as having a circular shape on a plane, the shape is not limited to this. The through-hole TH may be elliptical or polygonal in plan view.

[0242] The dead space DS is disposed so as to surround the through-hole TH. The driving electrodes TE and the sensing electrodes RE are not formed in the dead spaces DS. The dead space DS is an area for preventing the through holes TH from invading the wiring area LA and the sensor area TSA due to process errors that may occur during the formation of the through holes TH. The dead space DS is formed in a ring shape on a plane, but is not limited to this. That is, the dead space DS surrounds the through hole TH and is therefore dependent on the planar shape of the through hole TH.

[0243] The wiring area LA is arranged so as to surround the dead space DS. The wiring area LA is formed in a ring shape on a plane, but is not limited to this. That is, since the wiring area LA surrounds the dead space DS, it is dependent on the planar shapes of the through holes TH and the dead space DS. The driving electrodes TE and the sensing electrodes RE are not formed in the wiring area LA. The wiring area LA refers to the area where the drive connection portion that connects the drive electrodes TE that have been disconnected by the through holes TH and the sensing connection portion that connects the sensing connection wiring that connects the sensing electrodes RE that have been disconnected by the through holes TH are formed. The wiring area LA overlaps with the light-shielding layer of the cover window 100 in the third direction (Z-axis direction). Therefore, the wiring area LA can be shielded by the light-shielding layer of the cover window 100.

[0244] Figure 60 is an enlarged plan view showing the through holes, dead spaces, and wiring areas of Figure 59, Figure 61 is an enlarged plan view showing the connection portion between the drive electrode and drive connection wiring and the connection portion between the sensing electrode and sensing connection wiring of Figure 60, and Figure 62 is a cross-sectional view showing an example cut along line X-X' of Figure 61. 60 to 62, the wiring area LA includes a driving connection part TCL, a first sensing connection part RCL1, a second sensing connection part RCL2, a first area compensation part RCP1, and a second area compensation part RCP2.

[0245] The drive connection part TCL connects the drive electrodes TE that have been disconnected by the through holes TH. The drive connection part TCL includes a first drive connection part TCL1 and a second drive connection part TCL2. The first drive connection part TCL1 is formed along the edge of the wiring area LA adjacent to the dead space DS. For example, since the wiring area LA is formed in an annular shape on a plane, the first drive connection part TCL1 is formed in a circular shape on a plane. The second drive connection portion TCL2 connects the first drive connection portion TCL1 and the drive electrode TE. One side of the second drive connection part TCL2 is connected to the first drive connection part TCL1 via the sixth contact hole CNT6 that exposes the first drive connection part TCL1, and the other side is connected to the drive electrode TE via the sixth contact hole CNT6 that exposes the drive electrode TE.

[0246] The first driving connection part TCL1 is formed in the same layer and made of the same material as the driving electrode TE. The second driving connection part TCL2 is formed in the same layer and made of the same material as the first connection part BE1. The first drive connection portion TCL1 and the second drive connection portion TCL2 are disposed on different layers. For example, the first drive connection portion TCL1 is disposed on the first sensor insulating film TINS1, and the second drive connection portion TCL2 is disposed on the second buffer film BF2. The first sensing connection part RCL1 connects the sensing electrode RE that has been disconnected by the through hole TH. The first sensing connection part RCL1 is electrically isolated from the driving electrode TE, the first driving connection part TCL1 and the second driving connection part TCL2. The first sensing connection RCL1 intersects with the second driving connection TCL2. The first sensing connection part RCL1 is formed in the same layer and made of the same material as the sensing electrode RE.

[0247] The second sensing connection part RCL2 connects the other sensing electrode RE that has been disconnected by the through-hole TH. The second sensing connection part RCL2 is electrically isolated from the drive electrode TE, the first drive connection part TCL1, and the second drive connection part TCL2. The second sense connection RCL2 intersects with the second drive connection TCL2. The second sensing connection part RCL2 is formed in the same layer and made of the same material as the sensing electrode RE.

[0248] Incidentally, since the area of ​​the sensing electrode RE removed by the through-hole TH is larger than the area of ​​the driving electrode TE removed by the through-hole TH, it is necessary to compensate for the area of ​​the sensing electrode RE removed by the through-hole TH. Therefore, the width of the first sensing connection portion RCL1 and the width of the second sensing connection portion RCL2 may be wider than the width of the first driving connection portion TCL1 and the width of the second driving connection portion TCL2, respectively. For example, the first sensing connection part RCL1 is formed in the region between the drive electrode TE and the first drive connection part TCL1.

[0249] The first area compensator RCP1 compensates for the area of ​​the sensing electrode RE removed by the through-hole TH. The first area compensation part RCP1 electrically separates the drive electrode TE, the first drive connection part TCL1, and the second drive connection part TCL2. The first area compensation portion RCP1 intersects with the second drive connection portion TCL2. The first area compensation part RCP1 is formed in the same layer and made of the same material as the sensing electrode RE. The second area compensator RCP2 compensates for the area of ​​the further sensing electrode RE removed by the through-hole TH. The first area compensation unit RCP1 and the second area compensation unit RCP2 are disposed adjacent to each other. The second area compensation portion RCP2 electrically separates the drive electrode TE, the first drive connection portion TCL1, and the second drive connection portion TCL2. The second area compensation portion RCP2 intersects with the second drive connection portion TCL2. The second area compensator RCP2 is formed in the same layer and made of the same material as the sensing electrode RE.

[0250] The third area compensator RCP3 compensates for the area of ​​the further sensing electrode RE removed by the through-hole TH. The third area compensation portion RCP3 electrically separates the drive electrode TE, the first drive connection portion TCL1, and the second drive connection portion TCL2. The third area compensation portion RCP3 intersects with the second drive connection portion TCL2. The third area compensator RCP3 is formed in the same layer and made of the same material as the sensing electrode RE. The fourth area compensator RCP4 compensates for the area of ​​the further sensing electrode RE removed by the through-hole TH. The third area compensation unit RCP3 and the fourth area compensation unit RCP4 are disposed adjacent to each other. The fourth area compensation part RCP4 electrically isolates the drive electrode TE, the first drive connection part TCL1, and the second drive connection part TCL2. The fourth area compensation portion RCP4 intersects with the second drive connection portion TCL2. The fourth area compensator RCP4 is formed in the same layer and made of the same material as the sensing electrode RE.

[0251] The first conductive pattern AP is arranged in the wiring area LA between the first sensing connection part RCL1 and the first area compensation part RCP1, between the first sensing connection part RCL1 and the third area compensation part RCP3, between the second sensing connection part RCL2 and the second area compensation part RCP2, and between the second sensing connection part RCL2 and the fourth area compensation part RCP4. The first conductive patterns AP are connected by one feed wiring. Alternatively, the first conductive patterns AP are connected to different feed lines. Each of the first conductive patterns AP may be formed into a loop, a coil, or a square patch. When each of the first conductive patterns AP is formed in a loop or coil shape, it can be used as an antenna for an RFID tag for short-range communication. When each of the first conductive patterns AP is formed into a square patch as shown in FIG. 21, it can be used as a patch antenna for mobile communications.

[0252] As shown in FIG. 62, the first conductive pattern AP is formed in the same layer and made of the same material as the sensing electrode RE. The first conductive pattern AP is disposed on the first sensor insulating film TINS1. The second conductive pattern GP overlapping the first conductive pattern AP is formed in the same layer and made of the same material as the first connecting part BE1 and the second driving connecting part TCL2. The second conductive pattern GP is disposed on the second buffer film BF2. The first conductive pattern AP is formed of the same material on the same layer as the sensing electrode RE, and the second conductive pattern GP is formed of the same material on the same layer as the first connection part BE1 and the second driving connection part TCL2, so that the first conductive pattern AP and the second conductive pattern GP can be formed without adding any additional processes. As shown in FIGS. 60 to 62, the first conductive pattern AP formed in the remaining area of ​​the wiring area LA surrounding the through-hole TH can be used as an antenna.

[0253] FIG. 63 is a cross-sectional view showing an example taken along line XX' in FIG. The embodiment of FIG. 63 differs from the embodiment of FIG. 62 in that a guard pattern GAP is further formed between the sensing electrode RE and the first conductive pattern AP. Referring to FIG. 63, the guard pattern GAP is spaced apart from the sensing electrode RE and the first conductive pattern AP. The guard pattern GAP is electrically floating and receives the ground voltage. As shown in FIG. 63, the guard pattern GAP is disposed between the sensing electrode RE and the first conductive pattern AP, and the guard pattern GAP can block the sensing electrode RE from being affected by the electromagnetic waves from the first conductive pattern AP.

[0254] FIG. 64 is a cross-sectional view showing an example cut along the line XX' in FIG. The embodiment of FIG. 64 differs from the embodiment of FIG. 63 in that each guard pattern GAP includes a first sub-guard pattern SGAP1 and a second sub-guard pattern SGAP2. Referring to FIG. 64, the first sub-guard pattern SGAP1 is formed in the same layer and made of the same material as the first connection part BE1 and the second conductive pattern GP. The first sub-guard pattern SGAP1 is disposed on the second buffer film BF2. The second sub-guard pattern SGAP2 is formed in the same layer and made of the same material as the sensing electrode RE and the first conductive pattern AP. The second sub-guard pattern SGAP2 is disposed on the first sensor insulating film TINS1. The second sub-guard pattern SGAP2 is connected to the first sub-guard pattern SGAP1 via a contact hole that penetrates the first sensor insulating film TINS1. As shown in Figure 64, when the guard pattern GAP is formed of two layers, the first sub-guard pattern SGAP1 and the second sub-guard pattern SGAP2, the driving electrode TE and the sensing electrode RE can be more effectively shielded from being affected by the electromagnetic waves of the first conductive pattern AP.

[0255] FIG. 65 is a plan view showing a display layer of a display panel according to one embodiment of the present invention. For convenience of explanation, FIG. 65 only shows the pixels P of the display unit DU, the scan lines SL, the data lines DL, the scan control lines SCL, the fan-out lines FL, the scan driver 380, the display driver 320, and the display pads DP. Referring to FIG. 65, the scan lines SL, the data lines DL, and the pixels P are arranged in a display area DA. The scan lines SL are formed to line up in a first direction (X-axis direction), and the data lines DL are formed to line up in a second direction (Y-axis direction) that intersects with the first direction (X-axis direction).

[0256] Each of the sub-pixels PX is connected to at least one of the scan lines SL and one of the data lines DL. Each of the sub-pixels PX includes a thin film transistor including a driving transistor and at least one switching transistor, a light emitting element, and a capacitor. When a scan signal is applied from the scan line SL, each subpixel PX receives a data voltage from the data line DL and emits light by supplying a drive current to the light-emitting element in accordance with the data voltage applied to the gate electrode.

[0257] The scan driver 380 is connected to the display driver 320 via a plurality of scan control lines SCL. Therefore, the scan driver 380 receives the scan control signal from the display driver 320 . The scan driver 380 generates a scan signal in response to the scan control signal and supplies the generated scan signal to the scan lines SL. Although the scan driver 380 is formed in the non-display area NDA on the outer left side of the display area DA in the above example, the present invention is not limited to this. For example, the scan driver 380 may be formed in the non-display areas NDA on the left and right outer sides of the display area DA.

[0258] The display driver 320 is connected to the display pad DP and receives digital video data and timing signals. The display driver 320 converts the digital video data into analog positive / negative data voltages and supplies them to the data lines DL via the fan-out lines FL. In addition, the display driver 320 generates and supplies scan control signals for controlling the scan driver 380 via a plurality of scan control lines SCL. The pixel P to which the data voltage is to be supplied is selected by the scan signal of the scan driver 380, and the data voltage is supplied to the selected pixel P. The display driver 320 may be formed of an integrated circuit (IC) and attached to the substrate SUB by a chip on glass (COG) method, a chip on plastic (COP) method, or an ultrasonic bonding method, but is not limited thereto. For example, the display driver 320 can be mounted on the display circuit board 310 .

[0259] As shown in FIG. 65, the display panel 300 includes a display pad DP electrically connected to the display driver 320 and sensor pads (TP1, TP2) electrically connected to the sensor wiring. The display pad area DPA in which the display pads DP are arranged is disposed between the first sensor pad area TPA1 in which the first sensor pads TP1 are arranged and the second sensor pad area TPA2 in which the second sensor pads TP2 are arranged. As shown in FIG. 65, the display pad area DPA is positioned in the center of one end of the display panel 300, the first sensor pad area TPA1 is positioned on the left side of one end of the display panel 300, and the second sensor pad area TPA2 is positioned on the right side of one end of the display panel 300.

[0260] FIG. 66 is a plan view showing an example of a pixel in the display region of FIG. 65, and FIG. 67 is a plan view showing another example of a pixel in the display region of FIG. Referring to FIG. 66, each of the pixels PXG includes a first sub-pixel PX1, a second sub-pixel PX2, and a third sub-pixel PX3. The first sub-pixel PX1 emits a first light, the second sub-pixel PX2 emits a second light, and the third sub-pixel PX3 emits a third light. The first light is red light, the second light is green light, and the third light is blue light, but is not limited thereto. The sub-pixels (PX1, PX2, PX3) can also emit light of the same color. Furthermore, although FIG. 66 shows an example in which the pixel PX includes three sub-pixels, the present invention is not limited to this.

[0261] The sub-pixels (PX1, PX2, PX3) each include a light-emitting area EMA and a non-light-emitting area. The first sub-pixel PX1 includes a first light-emitting region EMA1, the second sub-pixel PX2 includes a second light-emitting region EMA2, and the third sub-pixel PX3 includes a third light-emitting region EMA2. The light emitting area EMA is defined as an area where the light emitting element 175 is arranged and from which light of a specific wavelength band is emitted. The light emitting area EMA is an exposed area that is not covered by the first conductive pattern AP. The non-luminous area is defined as the area other than the luminous area EMA. The non-light-emitting region is a region where no light-emitting element 175 is arranged, and where the light emitted from the light-emitting element 170 does not reach and does not exit.

[0262] Each of the sub-pixels (PX1, PX2, PX3) includes a first electrode 171, a second electrode 173, a contact electrode 174, a light-emitting element 175, a first conductive pattern AP, and a first connecting pattern CP1. The first electrode 171 is a pixel electrode separated for each sub-pixel (PX1, PX2, PX3), and the second electrode 173 is a common electrode connected in common to the sub-pixels (PX1, PX2, PX3). Alternatively, the first electrode 171 may be an anode electrode of the light emitting element 175 , and the other may be a cathode electrode of the light emitting element 175 . The first electrode 171 and the second electrode 173 each include an electrode trunk portion (171S, 173S) extending in a first direction (X-axis direction) and at least one electrode branch portion (171B, 173B) extending from the electrode trunk portion (171S, 173S) in a second direction (Y-axis direction) that intersects with the first direction (X-axis direction) and branching off.

[0263] The first electrode 171 includes a first electrode trunk 171S extending in a first direction (X-axis direction) and at least one first electrode branch 171B branched from the first electrode trunk 171S and extending in a second direction (Y-axis direction). The first trunk electrode 171S of any one sub-pixel is electrically isolated from the first trunk electrode 171S of the sub-pixel adjacent in the first direction (X-axis direction). The first electrode trunk 171S of any one sub-pixel is disposed to be spaced apart from the first electrode trunk 171S of the sub-pixel adjacent thereto in the first direction (X-axis direction). The first electrode trunk 171S is connected to the thin film transistor via the first electrode contact hole CNTD. The first electrode branch portion 171B is disposed to be spaced apart from the second electrode trunk portion 173S in the second direction (Y-axis direction). The first electrode branch portion 171B is disposed to be spaced apart from the second electrode branch portion 173B in the first direction (X-axis direction).

[0264] The second electrode 173 includes a second electrode trunk 173S arranged extending in a first direction (X-axis direction) and a second electrode branch 173B branched from the second electrode trunk 173S and extending in a second direction (Y-axis direction). The second trunk electrode 173S of any one sub-pixel is connected to the second trunk electrode 173S of the sub-pixel adjacent in the first direction (X-axis direction). The second electrode trunk portion 173S is disposed so as to cross the sub-pixels (PX1, PX2, PX3) in the first direction (X-axis direction). The second electrode branch portion 173B is disposed apart from the first electrode trunk portion 171S in the second direction (Y-axis direction). The second electrode branch portion 173B is disposed to be spaced apart from the first electrode branch portion 171B in the first direction (X-axis direction). The second electrode branch portion 173B is disposed between the first electrode branch portion 171B in the first direction (X-axis direction).

[0265] Although FIG. 66 shows an example in which the first electrode branch portion 171B and the second electrode branch portion 173B extend in the second direction (Y-axis direction), the present invention is not limited to this. For example, each of the first electrode branch 171B and the second electrode branch 173B may have a partially curved or bent shape, and may be arranged so that one electrode surrounds another electrode, as shown in FIG. Figure 67 illustrates an example in which the second electrode 173 has a circular shape, the first electrode 171 is arranged to surround the second electrode 173, a ring-shaped hole HOL is formed between the first electrode 171 and the second electrode 173, and the second electrode 173 receives application of a cathode voltage via the second electrode contact hole CNTS. That is, when at least a portion of the first electrode 171 and the second electrode 173 are arranged so as to face each other at a distance, a space is formed between the first electrode 171 and the second electrode 173 in which the light-emitting element 175 can be placed, and each of the first electrode branch 171B and the second electrode branch 173B can be formed into any shape.

[0266] The light emitting element 175 is disposed between the first electrode 171 and the second electrode 173 . One end of the light emitting element 175 is electrically connected to the first electrode 171 , and the other end is electrically connected to the second electrode 173 . The plurality of light emitting elements 175 are arranged spaced apart from one another. The plurality of light emitting elements 175 may be aligned substantially parallel to one another. The light emitting element 175 may have the shape of a rod, a wire, a tube, or the like. For example, the light emitting element 175 may be formed in a cylindrical or rod shape as shown in FIG. 68, which will be described later. However, the shape of the light emitting element 175 is not limited thereto, and the light emitting element 175 may have a polygonal prism shape such as a cube, a rectangular parallelepiped, or a hexagonal prism, or may have a shape that is elongated in one direction and has a partially inclined outer surface.

[0267] The length (h) of the light emitting element 175 can be in the range of 1 μm to 10 μm or 2 μm to 6 μm, and preferably has a length of 3 μm to 5 μm. The diameter of the light emitting element 175 may be in the range of 300 nm to 700 nm, and the aspect ratio of the light emitting element 175 may be in the range of 1.2 to 100. The light emitting element 175 of the first sub-pixel PX1 emits a first light, the light emitting element 175 of the second sub-pixel PX2 emits a second light, and the light emitting element 175 of the third sub-pixel PX3 emits a third light. The first light is red light having a central wavelength band in the range of 620 nm to 752 nm, the second light is green light having a central wavelength band in the range of 495 nm to 570 nm, and the third light is blue light having a central wavelength band in the range of 450 nm to 495 nm. Alternatively, the light-emitting element 175 of the first sub-pixel PX1, the light-emitting element 175 of the second sub-pixel PX2, and the light-emitting element 175 of the third sub-pixel PX3 may emit light of substantially the same color.

[0268] The contact electrodes 174 include a first contact electrode 174a and a second contact electrode 174b. The first contact electrode 174a and the second contact electrode 174b have a shape that extends in the second direction (Y-axis direction). The first contact electrode 174a is disposed on the first electrode branch portion 171B and is connected to the first electrode branch portion 171B. The first contact electrode 174 a contacts one end of the light emitting element 175 . The first contact electrode 174a is disposed between the first electrode branch portion 171B and the light emitting element 175. As a result, the light emitting element 175 is electrically connected to the first electrode 171 via the first contact electrode 174a. The second contact electrode 174b is disposed on the second electrode branch portion 173B and is connected to the second electrode branch portion 173B. The second contact electrode 174b contacts the other end of the light emitting element 175. The second contact electrode 174b is disposed between the second electrode branch portion 173B and the light emitting element 175. As a result, the light emitting element 175 is electrically connected to the second electrode 173 via the second contact electrode 174b. The width (or length in the first direction (X-axis direction)) of the first contact electrode 174a may be larger than the width (or length in the first direction (X-axis direction)) of the first electrode branch portion 171B, and the width (or length in the first direction (X-axis direction)) of the second contact electrode 174b may be larger than the width (or length in the first direction (X-axis direction)) of the second electrode branch portion 173B.

[0269] The external banks 430 are disposed between the sub-pixels (PX1, PX2, PX3). The external bank 430 extends long in the second direction (Y-axis direction). The length of each of the sub-pixels (PX1, PX2, PX3) in the first direction (X-axis direction) is defined as the distance between the external banks 430. The first conductive pattern AP is disposed so as to surround a light emitting area EMA in which the light emitting element 175 is disposed. The first conductive pattern AP is disposed so as to expose the light emitting element 175 without covering it. The first conductive pattern AP is disposed so as to expose at least a portion of the first contact electrode 174a and the second contact electrode 174b without covering them. The first conductive pattern AP overlaps the first electrode branch portion 171B and the second electrode branch portion 173B.

[0270] The first conductive patterns AP of the first sub-pixel PX1, the second sub-pixel PX2, and the third sub-pixel PX3 are connected together as shown in FIG. One pixel PX includes one first conductive pattern AP. The first conductive pattern AP of any one pixel PX is connected to the first conductive pattern AP of another pixel PX adjacent to the any one pixel PX in the first direction (X-axis direction) via a first connection pattern CP1. The first conductive pattern AP is connected to the first connection pattern CP1 via the first connection contact hole CNTC1. The first conductive pattern AP is disposed on the external bank 430 between the first sub-pixel PX1 and the second sub-pixel PX2 and on the external bank 430 between the second sub-pixel PX2 and the third sub-pixel PX3. The first conductive pattern AP is not disposed on the external bank 430 between the first sub-pixel PX1 and the third sub-pixel PX3. The first connection pattern CP1 is disposed on the external bank 430 between the first sub-pixel PX1 and the third sub-pixel PX3.

[0271] Although FIG. 66 shows an example in which one pixel PX includes one first conductive pattern AP, the present invention is not limited to this. For example, a plurality of pixels PX may include one first conductive pattern AP. In this case, the first conductive pattern AP may be disposed on the external bank 430 between the first sub-pixel PX1 and the third sub-pixel PX3. Alternatively, each of the sub-pixels (PX1, PX2, PX3) may include one first conductive pattern AP. In this case, the first conductive pattern AP is not disposed on the external bank 430 between the first sub-pixel PX1 and the second sub-pixel PX2 and the external bank 430 between the second sub-pixel PX2 and the third sub-pixel PX3. The first connection pattern CP1 may be disposed on the external bank 430 between the first sub-pixel PX1 and the second sub-pixel PX2 and on the external bank 430 between the second sub-pixel PX2 and the third sub-pixel PX3.

[0272] The first conductive pattern AP is connected to the feed wiring through a contact hole. Thereby, the first conductive pattern AP is connected to an RF driver disposed on the display circuit board or flexible film via a feed wiring. Therefore, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-distance communication.

[0273] FIG. 68 is a perspective view showing the light emitting element of FIG. 66 in detail. Referring to FIG. 68, the light emitting element 175 includes a first semiconductor layer 175a, a second semiconductor layer 175b, an active layer 175c, an electrode layer 175d, and an insulating layer 175e. The first semiconductor layer 175a has a first conductivity type, for example, an n-type semiconductor. The first semiconductor layer 175a may be any one or more of n-type doped AlGaInN, GaN, AlGaN, InGaN, AlN, and InN. For example, if the light emitting device 175 emits light in the blue wavelength band, the first semiconductor layer 175a includes a semiconductor material having a chemical formula of AlxGayIn1-x-yN (0≦x≦1, 0≦y≦1, 0≦x+y≦1). The first semiconductor layer 175a is doped with a first conductivity type dopant such as Si, Ge, or Sn. For example, the first semiconductor layer 175a is n-type Si-doped n-GaN.

[0274] The second semiconductor layer 175b may be a p-type semiconductor having a second conductivity type, and may be any one or more of p-type doped GaInN, GaN, AlGaN, InGaN, AlN, and InN. For example, if the light emitting element 175 emits light in the blue or green wavelength band, the second semiconductor layer 175b includes a semiconductor material having a chemical formula of AlxGayIn1-x-yN (0≦x≦1, 0≦y≦1, 0≦x+y≦1). The second semiconductor layer 175b may be doped with a second conductive type dopant such as Mg, Zn, Ca, Se, or Ba. In an exemplary embodiment, the second semiconductor layer 175b is p-type Mg-doped p-GaN.

[0275] The active layer 175c is disposed between the first semiconductor layer 175a and the second semiconductor layer 175b. The active layer 175c includes a material with a single or multiple quantum well structure. When the active layer 175c includes a material having a multiple quantum well structure, it may have a structure in which quantum layers and well layers are alternately stacked. Alternatively, the active layer 175c may have a structure in which semiconductor materials with large band gap energy and semiconductor materials with small band gap energy are alternately stacked, and may also include other Group III to V semiconductor materials depending on the wavelength band of the emitted light.

[0276] The active layer 175c emits light by recombination of electron-hole pairs in response to an electrical signal applied via the first semiconductor layer 175a and the second semiconductor layer 175b. The light emitted by the active layer 175c is not limited to light in the blue wavelength band, but can also emit light in the red and green wavelength bands. For example, if the active layer 175c emits light in the blue wavelength range, it may include materials such as AlGaN, AlGaInN, and the like. In particular, when the active layer 175c has a multi-quantum well structure in which quantum layers and well layers are alternately stacked, the quantum layers include AlGaN or AlGaInN, and the well layers include GaN or AlInN. For example, the active layer 175c includes AlGaInN as the quantum layers and AlInN as the well layers, and as described above, the active layer 175c emits blue light having a central wavelength band ranging from 450 nm to 495 nm. Light emitted from the active layer 175c can be emitted not only to the outer surface in the length direction of the light emitting element 175 but also to both sides. That is, the directionality of the light emitted from the active layer 175c is not limited to one direction.

[0277] The electrode layer 175d may be an ohmic contact electrode or a schottky contact electrode. The light emitting element 175 includes at least one electrode layer 175d. When the light emitting element 175 is electrically connected to the first electrode 171 or the second electrode 173, the resistance between the light emitting element 175 and the first electrode 171 or the second electrode 173 is reduced by the electrode layer 175d. The electrode layer 175d includes a conductive metal material such as at least one of aluminum (Al), titanium (Ti), indium (In), gold (Au), silver (Ag), ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), and ITZO (Indium Tin-Zinc Oxide). The electrode layer 175d may also include an n-type or p-type doped semiconductor material. The electrode layers 175d may contain the same material or different materials, but are not limited thereto.

[0278] The insulating film 175e is disposed so as to surround the outer surfaces of the first semiconductor layer 175a, the second semiconductor layer 175b, the active layer 175c, and the electrode layer 175d. The insulating film 175e serves to protect the first semiconductor layer 175a, the second semiconductor layer 175b, the active layer 175c, and the electrode layer 175d. The insulating film 175e is formed so as to expose both ends of the light emitting element 175 in the length direction. That is, one end of the first semiconductor layer 175a and one end of the electrode layer 175d are not covered with the insulating film 175e and are exposed. The insulating film 175e may cover only the outer surfaces of a portion of the first semiconductor layer 175a and a portion of the second semiconductor layer 175b including the active layer 175c, or may cover only the outer surface of a portion of the electrode layer 175d. The insulating film 175e may include a material having insulating properties, such as silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiOxNy), aluminum nitride (AlN), or aluminum oxide (Al2O3). If the active layer 175c is in direct contact with the first electrode 171 and the second electrode 173 through which an electrical signal is transmitted to the light emitting element 175, an electrical short circuit that may occur can be prevented. Furthermore, the insulating film 175e protects the outer surface of the light emitting element 175, including the active layer 175c, and therefore prevents a decrease in light emitting efficiency.

[0279] FIG. 69 is a cross-sectional view showing an example cut along line XII-XII' and an example cut along line XIII-XIII' in FIG. Referring to FIG. 69, the display layer DISL includes a thin film transistor layer TFTL, a light emitting element layer EML, and an encapsulation layer TFEL arranged on a substrate SUB. The thin film transistor layer TFTL in FIG. 69 is substantially the same as that described with reference to FIG.

[0280] The light emitting element layer EML includes a first inner bank 410, a second inner bank 420, a first electrode 171, a second electrode 173, a contact electrode 174, a light emitting element 175, a first insulating film 181, a second insulating film 182, and a third insulating film 183. The first inner bank 410 , the second inner bank 420 , and the outer bank 430 are disposed on the planarization film 160 . The first inner bank 410 , the second inner bank 420 , and the outer bank 430 protrude from the top surface of the planarization film 160 . The first interior bank 410, the second interior bank 420, and the exterior bank 430 may have a trapezoidal cross-sectional shape, but are not limited to such. The first internal bank 410, the second internal bank 420, and the external bank 430 each include a lower surface in contact with the upper surface of the planarization film 160, an upper surface opposite the lower surface, and a side surface between the upper surface and the lower surface. The side surfaces of the first inner bank 410, the second inner bank 420, and the outer bank 430 are formed to be inclined.

[0281] The first internal bank 410 and the second internal bank 420 are spaced apart from each other. The first internal bank 410 and the second internal bank 420 are formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin. The first electrode branch 171B is disposed on the first inner bank 410, and the second electrode branch 173B is disposed on the second inner bank 420. The first electrode branch portion 171B is connected to the first electrode trunk portion 171S, and the first electrode trunk portion 171S is connected to the drain electrode 124 of the thin film transistor 120 via the first electrode contact hole CNTD. Therefore, the first electrode 171 receives a voltage from the drain electrode 124 of the thin film transistor 120 .

[0282] The first electrode 171 and the second electrode 173 include a conductive material with high reflectivity. For example, the first electrode 171 and the second electrode 173 may include a metal such as silver (Ag), copper (Cu), aluminum (Al), or the like. As a result, light emitted from the light emitting element 175 and traveling to the first electrode 171 and the second electrode 173 is reflected by the first electrode 171 and the second electrode 173 and travels toward the upper part of the light emitting element 175 . A first insulating film 181 is disposed on the first electrode 171 and the second electrode branch portion 173B. The first insulating film 181 is arranged to cover the first electrode trunk 171S, the first electrode branch 171B arranged on the side of the first internal bank 410, and the second electrode branch 173B arranged on the side of the second internal bank 420. First electrode branch 171B arranged on the top surface of first inner bank 410 and second electrode branch 173B arranged on the top surface of second inner bank 420 are not covered by first insulating film 181 and are exposed. The first insulating film 181 is disposed on the external bank 430 . The first insulating film 181 is formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.

[0283] The light emitting element 175 is disposed on the first insulating film 181 disposed between the first inner bank 410 and the second inner bank 420 . One end of the light emitting element 175 is disposed adjacent to the first inner bank 410 , and the other end is disposed adjacent to the second inner bank 420 . A second insulating film 182 is disposed on the light emitting element 175 . The second insulating film 182 is formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The first contact electrode 174a is disposed on the first electrode branch portion 171B that is not covered with the first insulating film 181 and is exposed, and is in contact with one end of the light emitting element 175. The first contact electrode 174a is also disposed on the second insulating film 182.

[0284] A first connection pattern CP1 is disposed on the first insulating film 181 that covers the external bank 430. The first connection pattern CP1 is formed in the same layer and made of the same material as the first contact electrode 174a. A third insulating film 183 is disposed on the first contact electrode 174a and the first connection pattern CP1. The third insulating film 183 is disposed to cover the first contact electrode 174a in order to electrically separate the first contact electrode 174a and the second contact electrode 174b. The third insulating film 183 is formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The second contact electrode 174b is disposed on the second electrode branch portion 173B that is not covered with the first insulating film 181 and is exposed, and is in contact with the other end of the light emitting element 175. The second contact electrode 174b is also disposed on the second insulating film 182 and the third insulating film 183.

[0285] The first conductive pattern AP is disposed on the third insulating film 183. The first conductive pattern AP is formed on the same layer and made of the same material as the second contact electrode 174b. The first conductive pattern AP does not overlap with the first contact electrode 174a and the second contact electrode 174b in the third direction (Z-axis direction). The first conductive pattern AP overlaps with the first electrode branch portion 171B in the third direction (Z-axis direction). The first conductive pattern AP is connected to the first connection pattern CP1 via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the third insulating film 183 and exposes the first connection pattern CP1.

[0286] As shown in FIG. 69, the first conductive pattern AP is formed of the same material in the same layer as the second contact electrode 174b, and the first connection pattern CP1 is formed of the same material in the same layer as the first contact electrode 174a. Therefore, since the first conductive pattern can be formed without adding an additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0287] 70 is a cross-sectional view showing an example cut along line XII-XII' and an example cut along line XIII-XIII' in FIG. 69. FIG. The embodiment of FIG. 70 differs from the embodiment of FIG. 69 in that the first conductive pattern AP is arranged on the first insulating film 181 and the first connection pattern CP1 is arranged on the third insulating film 183. Referring to FIG. 70, the first conductive pattern AP is disposed on the first insulating film 181. The first conductive pattern AP is formed on the same layer and made of the same material as the first contact electrode 174a. The first conductive pattern AP does not overlap with the first contact electrode 174a and the second contact electrode 174b in the third direction (Z-axis direction). The first conductive pattern AP overlaps with the first electrode branch portion 171B in the third direction (Z-axis direction).

[0288] A third insulating film 183 is disposed on the first contact electrode 174a and the first conductive pattern AP. The first connection pattern CP1 is disposed on the third insulating film 183 that covers the external bank 430. The first connection pattern CP1 is formed in the same layer and made of the same material as the second contact electrode 174b. The first connection pattern CP1 is connected to the first conductive pattern AP via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the third insulating film 183 and exposes the first conductive pattern AP.

[0289] As shown in FIG. 70, the first conductive pattern AP is formed of the same material in the same layer as the first contact electrode 174a, and the first connection pattern CP1 is formed of the same material in the same layer as the second contact electrode 174b. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0290] 71 is a cross-sectional view showing an example cut along line XII-XII' and an example cut along line XIII-XIII' in FIG. 69. FIG. The embodiment of Figure 71 differs from the embodiment of Figure 69 in that the first contact electrode 174a, the second contact electrode 174b, and the first conductive pattern AP are arranged on the first insulating film 181, and the first connection pattern CP1 is arranged so as to be covered by the first insulating film 181. Referring to FIG. 71, the first connection pattern CP1 is disposed on the external bank 430. The first connection pattern CP1 is formed in the same layer as the first electrode 171 and the second electrode 173 and made of the same material. A first insulating film 181 is disposed on the first connection pattern CP1.

[0291] The first contact electrode 174a, the second contact electrode 174b, and the first conductive pattern AP are disposed on the first insulating film 181. The first contact electrode 174a, the second contact electrode 174b, and the first conductive pattern AP are covered with a third insulating film 183. The first conductive pattern AP is formed in the same layer and made of the same material as the first contact electrode 174a and the second contact electrode 174b. The first conductive pattern AP does not overlap with the first contact electrode 174a and the second contact electrode 174b in the third direction (Z-axis direction). The first conductive pattern AP overlaps with the first electrode branch portion 171B in the third direction (Z-axis direction). The first conductive pattern AP is connected to the first connection pattern CP1 via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the first insulating film 181 and exposes the first connection pattern CP1.

[0292] As shown in FIG. 73, the first conductive pattern AP is formed of the same material on the same layer as the first contact electrode 174a and the second contact electrode 174b, and the first connection pattern CP1 is formed of the same material on the same layer as the first electrode 171 and the second electrode 173. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0293] Figure 72 is a plan view showing an example of a pixel in the display area of ​​Figure 65, and Figure 73 is a cross-sectional view showing an example cut along line XVII-XVII' and an example cut along line XVIII-XVIII' in Figure 72. The embodiment of Figures 72 and 73 differs from the embodiment of Figures 66 and 69 in that the first conductive pattern AP is formed of the same material on the same layer as the first electrode 171 and the second electrode 173, and the first connection pattern CP1 is formed of the same material on the same layer as the first contact electrode 174a.

[0294] 72 and 73, each of the sub-pixels (PX1, PX2, PX3) includes a plurality of first conductive patterns AP, and each of the plurality of first conductive patterns AP is connected via a first connection pattern CP1. For example, each of the sub-pixels (PX1, PX2, PX3) includes two first conductive patterns AP as shown in FIG. The first connection pattern CP1 not only connects the first conductive patterns AP of the sub-pixels (PX1, PX2, PX3) but also connects the first conductive patterns AP of the sub-pixels (PX1, PX2, PX3) adjacent in the first direction (X-axis direction).

[0295] Any one of the first conductive patterns AP is disposed between any one of the first electrode branch portions 171B and the external bank 430. Another one of the first conductive patterns AP is disposed between another one of the first electrode branch portions 171B and the external bank 430. Each of the first conductive patterns AP is disposed between the first electrode branch portion 171B and the second electrode trunk portion 173S. The second electrode branch portions 173B are disposed between the first conductive patterns AP. The first conductive pattern AP is disposed on the planarization film 160 . The first conductive pattern AP is formed in the same layer and made of the same material as the first electrode 171 and the second electrode 173 . The first conductive pattern AP does not overlap with the first electrode 171, the second electrode 173, the first contact electrode 174a, and the second contact electrode 174b in the third direction (Z-axis direction). A first insulating film 181 is disposed on the first conductive pattern AP.

[0296] A first connection pattern CP1 is disposed on the first insulating film 181 that covers the external bank 430. The first connection pattern CP1 is formed in the same layer and made of the same material as the first contact electrode 174a. A third insulating film 183 is disposed on the first contact electrode 174a and the first connection pattern CP1. The first connection pattern CP1 is connected to the first conductive pattern AP via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the first insulating film 181 and exposes the first connection pattern CP1. The first connection pattern CP1 intersects with the second electrode branch portion 173B.

[0297] As shown in Figures 72 and 73, the first conductive pattern AP is formed of the same material on the same layer as the first electrode 171 and the second electrode 173, and the first connection pattern CP1 is formed of the same material on the same layer as the first contact electrode 174a. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0298] FIG. 74 is a cross-sectional view showing an example cut along line XVII-XVII' and an example cut along line XVIII-XVIII' in FIG. The embodiment of FIG. 74 differs from the embodiment of FIG. 73 in that the first connection pattern CP1 is disposed on the third insulating film 183. Referring to FIG. 74, the first connection pattern CP1 is disposed on the third insulating film 183 that covers the external bank 430. The first connection pattern CP1 is formed in the same layer and made of the same material as the second contact electrode 174b. The first connection pattern CP1 is connected to the first conductive pattern AP via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the first insulating film 181 and the third insulating film 183 to expose the first conductive pattern AP.

[0299] As shown in FIG. 74, the first conductive pattern AP is formed of the same material in the same layer as the first electrode 171 and the second electrode 173, and the first connection pattern CP1 is formed of the same material in the same layer as the second contact electrode 174b. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0300] FIG. 75 is a cross-sectional view showing an example cut along line XVII-XVII' and an example cut along line XVIII-XVIII' in FIG. The embodiment of FIG. 75 differs from the embodiment of FIG. 73 in that the first contact electrode 174a, the second contact electrode 174b, and the first connection pattern CP1 are arranged on the first insulating film 181. Referring to FIG. 75, the first connection pattern CP1 is formed in the same layer and made of the same material as the first contact electrode 174a and the second contact electrode 174b.

[0301] The first contact electrode 174a, the second contact electrode 174b, and the first connection pattern CP1 are covered with a third insulating film 183. The first connection pattern CP1 is disposed on the first insulating film 181 that covers the external bank 430. The first connection pattern CP1 is connected to the first conductive pattern AP via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the first insulating film 181 and exposes the first conductive pattern AP.

[0302] As shown in FIG. 75, the first conductive pattern AP is formed of the same material on the same layer as the first electrode 171 and the second electrode 173, and the first connection pattern CP1 is formed of the same material on the same layer as the first contact electrode 174a and the second contact electrode 174b. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0303] Figure 76 is a plan view showing an example of a pixel in the display area of ​​Figure 65, and Figure 77 is a cross-sectional view showing an example cut along line XX-XX' and an example cut along line XXI-XXI' in Figure 76. The embodiment of Figures 76 and 77 differs from the embodiment of Figures 66 and 69 in that it includes a shielding electrode 177 in contact with the first contact electrode 174a and the first conductive pattern AP is formed of the same material as the shielding electrode 177. 76 and 77, the shielding electrode 177 overlaps a portion of the first contact electrode 174a. One side of the first contact electrode 174 a contacts the light emitting element 175 , and the other side of the first contact electrode 174 a contacts the shielding electrode 177 .

[0304] The shielding electrode 177 is disposed on a first insulating film 181 disposed on the top and side surfaces of the first inner bank 410 . The shielding electrode 177 contacts the first contact electrode 174 a on the top surface of the first inner bank 410 . The first contact electrode 174 a is disposed on the shield electrode 177 on the top surface of the first inner bank 410 . The shielding electrode 177 may be formed of a single layer or multiple layers of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0305] A third insulating film 183 is disposed on the first contact electrode 174 a and the shielding electrode 177 . The first contact electrode 174 a and the shield electrode 177 are covered with a third insulating film 183 . The first conductive pattern AP is disposed so as to surround the light emitting portions (EMA1, EMA2, EMA3). The first conductive pattern AP is disposed apart from the shielding electrode 177 . The first conductive pattern AP does not overlap with the first contact electrode 174a, the second contact electrode 174b, and the shielding electrode 177 in the third direction (Z-axis direction). The first conductive pattern AP is formed in the same layer as the shielding electrode 177 and from the same material. The first conductive pattern AP is disposed on the first insulating film 181. A third insulating film 183 is disposed on the first conductive pattern AP.

[0306] On the external bank 430, a first connection pattern CP1 is disposed. The first connection pattern CP1 is formed in the same layer as the first electrode 171 and the second electrode 173 and made of the same material. A first insulating film 181 is disposed on the first connection pattern CP1. The first connection pattern CP1 is connected to the first conductive pattern AP via the first connection contact hole CNTC1. The first connection contact hole CNTC1 is a hole that penetrates the first insulating film 181 and exposes the first connection pattern CP1.

[0307] As shown in Figures 76 and 77, the first conductive pattern AP is formed of the same material in the same layer as the shielding electrode 177, and the first connection pattern CP1 is formed of the same material in the same layer as the first electrode 171 and the second electrode 173. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0308] 78 is a plan view showing an example of a pixel in the display region of FIG. 65, and FIG. 79 is a cross-sectional view showing an example taken along line XXII-XXII' in FIG. The embodiment of FIGS. 78 and 79 differs from the embodiment of FIGS. 66 and 69 in that the first conductive pattern AP is disposed on the encapsulation layer TFEL. Referring to Figures 78 and 79, the first conductive pattern AP is formed on the encapsulation layer TFEL, and is therefore arranged to overlap with the remaining areas excluding the light-emitting portions (EMA1, EMA2, EMA3) of the sub-pixels (PX1, PX2, PX3).

[0309] The first conductive pattern AP overlaps the first electrode trunk portion 171S and the first electrode branch portion 171B of the first electrode 171, the second electrode trunk portion 173S and the second electrode branch portion 173B of the second electrode 173, and the external bank 430. The first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication. The first conductive pattern AP may include a conductive material with high reflectivity. For example, the first conductive pattern AP may include a metal such as silver (Ag), copper (Cu), aluminum (Al), or the like. As a result, light incident from above the display panel 300 can be reflected by the first conductive pattern AP and output to the outside. Therefore, the display panel 300 may be a reflective display panel that can reflect objects or background on the upper surface of the display panel 300 .

[0310] As shown in Figures 78 and 79, the first conductive pattern AP is disposed on the sealing layer TFEL, so that the first conductive pattern AP is separated from the first electrode 171, the second electrode 173, the first contact electrode 174a, and the second contact electrode 174b by 200 μm or more. This can reduce the influence of electromagnetic waves from the first conductive pattern AP on the first electrode 171, the second electrode 173, the first contact electrode 174a, and the second contact electrode 174b.

[0311] FIG. 80 is a cross-sectional view showing an example taken along line XXII-XXII' in FIG. The embodiment of FIG. 80 differs from the embodiment of FIG. 79 in that a second conductive pattern GP that overlaps the first conductive pattern AP is added. Referring to FIG. 80, a second conductive pattern GP to which a ground voltage is applied is disposed on the encapsulation layer TFEL. The second conductive pattern GP is arranged so as to overlap with the remaining regions of the sub-pixels (PX1, PX2, PX3) excluding the light-emitting portions (EMA1, EMA2, EMA3). The second conductive pattern GP overlaps the first electrode trunk portion 171S and the first electrode branch portion 171B of the first electrode 171, the second electrode trunk portion 173S and the second electrode branch portion 173B of the second electrode 173, and the external bank 430.

[0312] The second conductive pattern GP may include a conductive material. For example, the second conductive pattern GP may be formed of a single layer or multiple layers of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu) or an alloy thereof. Alternatively, the second conductive pattern GP may include a conductive material with high reflectivity. For example, the first conductive pattern AP may include a metal such as silver (Ag), copper (Cu), aluminum (Al), or the like. When the second conductive pattern GP includes a conductive material with high reflectivity, light incident from above the display panel 300 can be reflected using two reflective layers, the second conductive pattern GP and the first conductive pattern AP.

[0313] A fourth insulating film 184 is disposed on the second conductive pattern GP. The fourth insulating film 184 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. On the fourth insulating film 184, the first conductive pattern AP is disposed. The first conductive pattern AP is disposed so as to overlap the second conductive pattern GP in the third direction (Z-axis direction).

[0314] As shown in FIG. 80, the second conductive pattern GP is disposed on the encapsulation layer TFEL, and the first conductive pattern AP is disposed on the encapsulation layer TFEL, so that the electromagnetic waves of the first conductive pattern AP are blocked by the second conductive pattern GP. Therefore, it is possible to reduce the influence of the electromagnetic waves from the first conductive pattern AP on the first electrode 171, the second electrode 173, the first contact electrode 174a, and the second contact electrode 174b.

[0315] FIG. 81 is a plan view showing an example of a pixel in the display region of FIG. The embodiment of FIG. 81 differs from the embodiment of FIG. 80 in that the first conductive pattern AP includes a plurality of slits slt. Referring to FIG. 81, each of the plurality of slits slt of the first conductive pattern AP is formed so as to be inclined with respect to the second direction (Y-axis direction).

[0316] The overlapping area between the first conductive pattern AP and the first electrode 171 and the overlapping area between the first conductive pattern AP and the second electrode 173 are reduced by the plurality of slts. This makes it possible to reduce the parasitic capacitance between the first conductive pattern AP and the first electrode 171 and the parasitic capacitance between the first conductive pattern AP and the second electrode 173. Therefore, the first electrode 171 and the second electrode 173 can be less affected by the electromagnetic waves from the first conductive pattern AP.

[0317] Figure 81 illustrates an example in which multiple slits slt are arranged between adjacent light-emitting elements (EMA1, EMA2, EMA3) in the first direction (X-axis direction), but the arrangement positions of the multiple slits slt are not limited to this. Meanwhile, in FIGS. 80 and 81, instead of the first conductive pattern AP, a sensor electrode layer SENL including the first conductive pattern AP may be disposed on the encapsulation layer TFEL.

[0318] FIG. 82 is a plan view showing an example of a pixel arrangement in the display region of FIG. Referring to FIG. 82, the display area DA includes pixels PX, non-light-emitting portions NEA, and transmissive portions TA. Each pixel PXG includes a first sub-pixel PX1, a second sub-pixel PX2, and a third sub-pixel PX3. Each of the first sub-pixel PX1, the second sub-pixel PX2, and the third sub-pixel PX3 includes a light-emitting element that emits light. The light emitting element may be an organic light emitting diode including an organic light emitting layer, a micro LED, a quantum dot light emitting diode including a quantum dot light emitting layer, or an inorganic light emitting diode including an inorganic semiconductor.

[0319] The first sub-pixel PX1 emits a first light, the second sub-pixel PX2 emits a second light, and the third sub-pixel PX3 emits a third light. The first light may be, but is not limited to, a red light, the second light may be a green light, and the third light may be a blue light. Alternatively, the sub-pixels (PX1, PX2, PX3) can emit light of the same color. Each of the sub-pixels (PX1, PX2, PX3) is formed in a rectangular shape having a long side in the first direction (X-axis direction) and a short side in the second direction (Y-axis direction), but is not limited to this. The sub-pixels (PX1, PX2, PX3) are arranged in the second direction (Y-axis direction), but are not limited to this.

[0320] The non-light-emitting area NEA is an area where wiring for driving the light-emitting elements of the sub-pixels (PX1, PX2, PX3) is arranged. The non-emitting portion NEA is disposed so as to surround the sub-pixels (PX1, PX2, PX3). The non-emitting portions NEA are disposed between the sub-pixels (PX1, PX2, PX3) adjacent to each other. The non-emitting portions NEA are disposed between the transmissive portions TA and the sub-pixels (PX1, PX2, PX3). The non-light-emitting portions NEA are disposed between adjacent light-transmitting portions TA.

[0321] The transmission portion TA is a region that passes almost all of the incident light unchanged. The transmissive portions TA are arranged in the second direction (Y-axis direction). The transparent portion TA allows objects or background located below the display panel 300 to be seen through the upper surface of the display panel 300 . A first conductive pattern AP is arranged in the transmissive portion TA. The first conductive pattern AP has a mesh structure or a net structure. In order to prevent the first conductive patterns AP from being visible to the user, the width of each of the first conductive patterns AP may be formed to be 2 μm or less. Although FIG. 82 illustrates a case where the first conductive patterns AP are arranged in all the transmissive portions TA, the present invention is not limited to this. The first conductive pattern AP may be formed in a part of the transmissive portion TA, and may not be formed in the rest.

[0322] The first conductive pattern AP is connected to the feed wiring in the non-light emitting area NEA. Therefore, the first conductive pattern AP is connected to the RF driver 350 disposed on the display circuit board 310 or the first flexible film 340 via a feed wiring. Therefore, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-distance communication.

[0323] As shown in FIG. 82, when the display panel 300 is embodied as a transparent display panel including a transmissive portion TA, or includes a transmissive portion TA that overlaps with a sensor device arranged on the underside of the display panel 300, the first conductive pattern AP formed in the transmissive portion TA of the display panel 300 can be used as an antenna.

[0324] FIG. 83 is a cross-sectional view showing an example of the sub-pixel and an example of the transmissive region of FIG. Referring to FIG. 83, the display layer DISL includes a thin film transistor layer TFTL, a light emitting element layer EML, and an encapsulation layer TFEL disposed on a substrate SUB. The thin film transistor layer TFTL, the light emitting element layer EML, and the encapsulation layer TFEL of the sub-pixel in FIG. 83 are substantially the same as those described with reference to FIG.

[0325] The first conductive pattern AP is disposed in the transmissive portion TA on the same layer and made of the same material as the first electrode 171. The first conductive pattern AP is disposed on the planarization film 160 . The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transparent portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is disposed in the same layer and made of the same material as the source electrode 123 and the drain electrode 124 of the thin film transistor 120 . The second conductive pattern GP is disposed on the first interlayer insulating film 141 . Alternatively, the second conductive pattern GP may be disposed in the same layer and made of the same material as the gate electrode 122 of the thin film transistor 120 . The second conductive pattern GP is disposed on the gate insulating film 130 .

[0326] As shown in FIG. 83, the first conductive pattern AP is formed in the transmissive portion TA in the same layer and made of the same material as the first electrode 171, and the second conductive pattern GP is formed in the same layer and made of the same material as the source electrode 123 and drain electrode 124 of the thin film transistor 120. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0327] FIG. 84 is a cross-sectional view showing an example of the transmission region of FIG. Referring to FIG. 84, the first conductive pattern AP is disposed in the transmissive part TA in the same layer and made of the same material as the source electrode 123 and the drain electrode 124 of the thin film transistor 120. The first conductive pattern AP is disposed on the second interlayer insulating film 142. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transmissive portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is disposed on the same layer as the capacitor electrode 125 and made of the same material. The second conductive pattern GP is disposed on the first interlayer insulating film 141 .

[0328] As shown in FIG. 84, the first conductive pattern AP is formed in the transmissive portion TA in the same layer and made of the same material as the source electrode 123 and drain electrode 124 of the thin film transistor 120, and the second conductive pattern GP is formed in the same layer and made of the same material as the capacitor electrode 125. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0329] FIG. 85 is a cross-sectional view showing an example of the transmission region of FIG. Referring to FIG. 85, the first conductive pattern AP is disposed in the transparent portion TA on the same layer and made of the same material as the capacitor electrode 125. The first conductive pattern AP is disposed on the first interlayer insulating film 141. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transparent portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is disposed in the same layer and made of the same material as the gate electrode 122 of the thin film transistor 120 . The second conductive pattern GP is disposed on the gate insulating film 130 .

[0330] As shown in FIG. 85, the first conductive pattern AP is formed of the same material and in the same layer as the capacitor electrode 125 in the transmissive portion TA, and the second conductive pattern GP is formed of the same material and in the same layer as the gate electrode 122 of the thin film transistor 120. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0331] FIG. 86 is a cross-sectional view showing an example of the transmission region of FIG. Referring to FIG. 86, the first conductive pattern AP is disposed in the same layer and made of the same material as the gate electrode 122 of the thin film transistor 120 in the transmissive part TA. The first conductive pattern AP is disposed on the gate insulating film 130. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transparent portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is arranged in the same layer as the first light-shielding layer BML1 and is made of the same material. The second conductive pattern GP is disposed on the substrate SUB, and the first buffer film BF1 is disposed on the second conductive pattern GP.

[0332] As shown in FIG. 86, the first conductive pattern AP is formed in the transparent portion TA in the same layer and made of the same material as the gate electrode 122 of the thin film transistor 120, and the second conductive pattern GP is formed in the same layer and made of the same material as the first light-shielding layer BML1. Therefore, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0333] FIG. 87 is a cross-sectional view showing an example of the transmission region of FIG. Referring to FIG. 87, the first conductive pattern AP is disposed in the same layer and made of the same material as the active layer 121 of the thin film transistor 120 in the transmissive part TA. In this case, the first conductive pattern AP becomes a conductor. The first conductive pattern AP is disposed on the first buffer film BF1. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transparent portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is arranged in the same layer as the first light-shielding layer BML1 and is made of the same material. The second conductive pattern GP is disposed on the substrate SUB, and the first buffer film BF1 is disposed on the second conductive pattern GP.

[0334] As shown in FIG. 87, the first conductive pattern AP is formed in the same layer and made of the same material as the active layer 121 of the thin film transistor 120 in the transmissive portion TA, and the second conductive pattern GP is formed in the same layer and made of the same material as the first light-shielding layer BML1. Therefore, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0335] FIG. 88 is a cross-sectional view showing an example of the transmission region of FIG. Referring to FIG. 88, the first conductive pattern AP is formed in the same layer and made of the same material as the first light-shielding layer BML1 in the transmissive part TA. The first conductive pattern AP is disposed on the substrate SUB, and the first buffer film BF1 is disposed on the second conductive pattern GP. The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transparent portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is disposed on the other surface of the substrate SUB, which is the surface opposite to the one surface thereof, and a third buffer film BF3 is disposed on the second conductive pattern GP. The first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0336] FIG. 89 is a cross-sectional view showing an example of the sub-pixel and an example of the transmissive region of FIG. Referring to FIG. 89, the thin film transistor layer TFTL includes a first thin film transistor 120a including an active layer 121a made of polysilicon and a second thin film transistor 120b including an active layer 121b made of an oxide semiconductor.

[0337] The first thin film transistor 120a includes a first active layer 121a, a first gate electrode 122a, a first source electrode 123a, and a first drain electrode 124a. The second thin film transistor 120b includes a second active layer 121b, a second gate electrode 122b, a second source electrode 123b, and a second drain electrode 124b. The first active layer 121a is disposed on the first buffer film BF1. The first active layer 121a is made of polycrystalline silicon or low temperature polycrystalline silicon (LTPS).

[0338] A first gate insulating film 131 is disposed on the first active layer 121a. The first gate insulating film 131 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The first gate electrode 122 a is disposed on the first gate insulating film 131 . The first gate electrode 122a overlaps with the first active layer 121a in the third direction (Z-axis direction).

[0339] A first interlayer insulating film 141 is disposed on the first gate electrode 122a. On the first interlayer insulating film 141, a light-shielding layer BML is disposed. The light-shielding layer BML may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof. A second interlayer insulating film 142 is disposed on the light-shielding layer BML.

[0340] On the second interlayer insulating film 142, the second active layer 121b is disposed. The second active layer 121b overlaps the light-shielding layer BML in the third direction (Z-axis direction). The second active layer 121b is made of an oxide semiconductor. A second gate electrode 122b is disposed on the second active layer 121b. The second gate electrode 122b overlaps with the second active layer 121b in the third direction (Z-axis direction). The first gate electrode 122a and the second gate electrode 122b may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu) or an alloy thereof.

[0341] A third interlayer insulating film 143 is disposed on the second gate electrode 122b. The first interlayer insulating film 141, the second interlayer insulating film 142, and the third interlayer insulating film 143 may be formed of an inorganic film, such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. On the third interlayer insulating film 143, a first source electrode 123a, a second source electrode 123b, a first drain electrode 124a, and a second drain electrode 124b are formed. The first source electrode 123a and the first drain electrode 124a are connected to the first active layer 121a via contact holes that penetrate the first interlayer insulating film 141, the second interlayer insulating film 142, and the third interlayer insulating film 143. The second source electrode 123b and the second drain electrode 124b are connected to the second active layer 121b via contact holes that penetrate the third interlayer insulating film 143.

[0342] The first source electrode 123a, the second source electrode 123b, the first drain electrode 124a, and the second drain electrode 124b may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof. A planarization film 160 for planarizing steps formed by the first thin film transistor 120a and the second thin film transistor 120b is formed on the first source electrode 123a, the second source electrode 123b, the first drain electrode 124a, and the second drain electrode 124b. The planarization film 160 can be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0343] The light emitting element layer EML and the encapsulation layer TFEL are formed on the thin film transistor layer TFTL. The light emitting element layer EML and the encapsulation layer TFEL are substantially the same as those described with reference to FIG. The first conductive pattern AP is disposed in the transmissive portion TA on the same layer and made of the same material as the first electrode 171. The first conductive pattern AP is disposed on the planarization film 160 . The second conductive pattern GP is disposed so as to overlap the first conductive pattern AP in the third direction (Z-axis direction) in the transparent portion TA. The second conductive pattern GP can be omitted. The second conductive pattern GP is disposed in the same layer and made of the same material as the first source electrode 123a, the second source electrode 123b, the first drain electrode 124a, and the second drain electrode 124b. The second conductive pattern GP is disposed on the third interlayer insulating film 143 . Alternatively, the second conductive pattern GP may be disposed in the same layer and made of the same material as any one of the second gate electrode 122b, the second light-shielding layer BML2, the first gate electrode 122a, and the first light-shielding layer BML1.

[0344] Alternatively, the first conductive pattern AP may be disposed in the same layer and made of the same material as the first source electrode 123a, the second source electrode 123b, the first drain electrode 124a, and the second drain electrode 124b. In this case, the second conductive pattern GP is disposed in the same layer and made of the same material as any one of the second gate electrode 122b, the second light-shielding layer BML2, the first gate electrode 122a, and the first light-shielding layer BML1. Alternatively, the first conductive pattern AP may be disposed in the same layer and made of the same material as the second gate electrode 122b. In this case, the second conductive pattern GP is disposed in the same layer and made of the same material as any one of the second light-shielding layer BML2, the first gate electrode 122a, and the first light-shielding layer BML1.

[0345] Alternatively, the first conductive pattern AP is disposed in the same layer and made of the same material as the light-shielding layer BML. In this case, the second conductive pattern GP is disposed in the same layer and made of the same material as the first gate electrode 122a and the first light-shielding layer BML1. Alternatively, the first conductive pattern AP may be disposed in the same layer and made of the same material as the first gate electrode 122a and the first active layer 121a. In this case, the second conductive pattern GP is arranged in the same layer as the first light-shielding layer BML1 and made of the same material.

[0346] As shown in FIG. 89, the first conductive pattern AP is formed in the transmissive portion TA in the same layer and made of the same material as the first electrode 171, and the second conductive pattern GP is formed in the same layer and made of the same material as the source electrode 123 and drain electrode 124 of the thin film transistor 120. Therefore, since the first conductive pattern AP can be formed without adding any additional process, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-range communication.

[0347] Also, as shown in FIG. 89, when the thin film transistor layer TFTL includes a first thin film transistor 120a including an active layer 121a made of polycrystalline silicon and a second thin film transistor 120b including an active layer 121b made of an oxide semiconductor, the non-emitting area NEA can be reduced by narrowing the gap between the first thin film transistor 120a and the second thin film transistor 120b, thereby increasing the area of ​​the transmissive area TA. By increasing the area of ​​the transmissive portion TA, the area in which the first conductive pattern AP can be arranged can be increased.

[0348] FIG. 90 is an exploded perspective view showing a schematic configuration of a display device according to one embodiment of the present invention. The embodiment of FIG. 90 differs from the embodiment of FIG. 2 in that the display area DA of the display panel 300 includes a main area MAA and a sub-area SDA. Referring to FIG. 90, a display panel 300 includes a main area MAA and a sub-area SDA.

[0349] The main area MAA is arranged so as to overlap the first transmission portion DA100 of the cover window 100. The sub-area SDA is arranged so as to overlap with the second transmission portion SDA100 of the cover window 100. The sub-area SDA is disposed on one side of the main area MAA, for example, on the upper side as shown in FIG. 2, but is not limited thereto. For example, the sub-area SDA may be arranged so as to be surrounded by the main area MAA, or may be arranged so as to be adjacent to a corner of the display panel 300. Although FIG. 2 illustrates an example in which the display panel 300 includes one sub-area SDA, the present invention is not limited to this. For example, the display panel 300 may include multiple sub-areas SDA.

[0350] The bracket 600 has a sensor hole SH formed therein that overlaps with the sub-area SDA of the display panel 300 in the third direction (Z-axis direction). The sensor holes SH overlap with the sensor devices (741, 742, 743, 744) of the main circuit board 700 in the third direction (Z-axis direction). Therefore, the sub-area SDA of the display panel 300 overlaps with the sensor devices (741, 742, 743, 744) of the main circuit board 700 in the third direction (Z-axis direction). That is, the sub-area SDA of the display panel 300 is disposed on the sensor devices (741, 742, 743, 744) of the main circuit board 700. The bracket 600 does not necessarily have to have the sensor hole SH formed therein. In this case, the bracket 600 is disposed so as not to overlap the sensor area SDA of the display panel 300 in the third direction (Z-axis direction).

[0351] A proximity sensor 741 , an illuminance sensor 742 , an iris sensor 743 , and a front camera sensor 744 are disposed on one surface of the main processor 710 . Since the sub-region SDA of the display panel 300 includes a transmissive portion TA as shown in Figures 91 and 92, the proximity sensor 741 can detect an object placed close to the top surface of the display device 10, and the illuminance sensor 742 can sense the brightness of light incident on the top surface of the display device 10. In addition, the iris sensor 743 can capture an image of the iris of a person placed on the top surface of the display device 10, and the front camera sensor 744 can capture an image of an object placed on the top surface of the display device 10. The sensors arranged to overlap the sub-area SDA of the display panel 300 are not limited to the proximity sensor 741, the illuminance sensor 742, the iris sensor 743, and the front camera sensor 744. Sensor devices other than the proximity sensor 741, the illuminance sensor 742, the iris sensor 743, and the front camera sensor 744 may be arranged to overlap the sub-region SDA of the display panel 300 in the third direction (Z-axis direction).

[0352] As shown in FIG. 90, the sensor devices (741, 742, 743, 744) are arranged to overlap the sub-area SDA of the display panel 300, so that the light-shielding portion NDA100 of the cover window 100 can be reduced. Therefore, the bezel of the display device 10 can be minimized.

[0353] FIG. 91 is a plan view showing an example of pixels in a sub-region of a display panel. Referring to FIG. 91, the display area DA includes pixels PX, non-light-emitting portions NEA, and transmissive portions TA. The embodiment of Figure 91 differs from the embodiment of Figure 82 in that each pixel PX includes four sub-pixels (PX1, PX2, PX3, PX4) and the transmissive portion TA is arranged to surround four sides of a pixel PXG in a group including multiple pixels PX.

[0354] Each pixel PX includes a first sub-pixel PX1, a second sub-pixel PX2, a third sub-pixel PX3, and a fourth sub-pixel PX4. The first sub-pixel PX1 emits a first light, the second sub-pixel PX2 and the fourth sub-pixel PX4 emit a second light, and the third sub-pixel PX3 emits a third light. The first light may be, but is not limited to, a red light, the second light may be a green light, and the third light may be a blue light. Alternatively, the sub-pixels (PX1, PX2, PX3, PX4) can emit light of the same color. Each of the sub-pixels (PX1, PX2, PX3, PX4) is formed in a rectangular shape having a long side in the second direction (Y-axis direction) and a short side in the first direction (X-axis direction), but is not limited to this. Although the example has been given in which the group of pixels PXG includes four pixels PX, the present invention is not limited to this.

[0355] A transmissive portion TA is arranged on four sides of the group of pixels PXG. A transmissive portion TA is disposed between pixels PXG of any one group and pixels PXG of another group adjacent to each other in the first direction (X-axis direction). Furthermore, a transmissive portion TA is disposed between the pixels PXG of any one group and the pixels PXG of the other group adjacent to each other in the second direction (Y-axis direction). The transmission portion TA is a region that passes almost all of the incident light unchanged. The transparent portion TA allows objects or background located below the display panel 300 to be seen through the upper surface of the display panel 300 .

[0356] A first conductive pattern AP is arranged in the transmissive portion TA. The first conductive pattern AP has a mesh structure or a net structure. In order to prevent the first conductive patterns AP from being visible to the user, the width of each of the first conductive patterns AP may be formed to be 2 μm or less. Although FIG. 91 illustrates a case where the first conductive patterns AP are arranged in all the transmissive portions TA, the present invention is not limited to this. The first conductive pattern AP may be formed in a part of the transmissive portion TA, and may not be formed in the rest. The first conductive pattern AP is connected to the feed wiring in the non-light emitting area NEA. Therefore, the first conductive pattern AP is connected to an RF driver disposed on the display circuit board or flexible film via a feed wire. Therefore, the first conductive pattern AP can be used as a patch antenna for mobile communication or as an antenna for an RFID tag for short-distance communication.

[0357] FIG. 92 is a plan view showing an example of pixels in a sub-region of a display panel. The embodiment of FIG. 92 differs from the embodiment of FIG. 91 in that the display area DA further includes a mirror portion MA. Referring to FIG. 92, the mirror portion MA is an area that reflects light incident on the upper portion of the display panel 300. The mirror portion MA allows the sub-area SDA of the display panel 300 to reflect the objects or background on the upper surface of the display panel 300 . A part of the transmission portion TA in FIG. 91 is replaced with a mirror portion MA. Although FIG. 92 illustrates a case where the first conductive patterns AP are arranged in all the transmissive portions TA, the present invention is not limited to this. The first conductive pattern AP may be formed in a part of the transmissive portion TA, and may not be formed in the rest.

[0358] FIG. 93 is a cross-sectional view showing an example of the mirror region of FIG. As shown in FIG. 93, a mirror pattern MP is arranged on the mirror portion MA. The mirror pattern MP is disposed in the same layer as the first electrode 171 and made of the same material. The mirror pattern MP is disposed on the planarization film 160 . The mirror pattern MP can be formed of a metal material with high reflectivity, such as a laminated structure of aluminum and titanium (Ti / Al / Ti), a laminated structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, and a laminated structure of APC alloy and ITO (ITO / APC / ITO). The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu). Although FIG. 92 illustrates a case where the second electrode 173 is not disposed on the mirror portion MA, the present invention is not limited to this. The second electrode 173 can be disposed on the mirror portion MA.

[0359] Figure 94 is an oblique view showing a display panel according to one embodiment of the present invention, Figure 95 is an expanded view showing a display panel according to one embodiment of the present invention, Figure 96 is a front view showing an example of the display panel of Figure 94, Figure 97 is a back view showing an example of the display panel of Figure 94, Figure 98 is a side view showing an example of the display panel of Figure 94, and Figure 99 is a cross-sectional view showing a portion of the fourth side portion of Figure 95.

[0360] In FIG. 99, the display layer DISL and the sensor electrode layer SENL of the fourth side surface portion SS4 are substantially the same as those described with reference to FIG. In FIG. 99, the case where the sensor electrode layer SENL is driven by the two-layer mutual capacitance method shown in FIGS. 17 to 21 or 55 to 58 has been mainly described, but the present invention is not limited to this. The sensor electrode layer SENL can be implemented as a one layer mutual capacitance type shown in Figures 46 to 51, a one layer self-capacitance type shown in Figures 52 and 53, or a one layer strain gauge type shown in Figure 54.

[0361] 94 to 99, the display panel 300 includes a substrate having a top surface portion PS, a first side surface portion SS1, a second side surface portion SS2, a third side surface portion SS3, a fourth side surface portion SS4, a first corner portion CS1, a second corner portion CS2, a third corner portion CS3, and a fourth corner portion CS4. The upper surface portion PS is a flat surface that is not curved. The top surface portion PS is a quadrilateral surface having a short side in the first direction (X-axis direction) and a long side in the second direction (Y-axis direction). The corners where the short sides and long sides of the top surface portion PS meet are formed to be curved with a predetermined curvature. The top surface part PS is the top surface of the display panel 300.

[0362] The first side surface portion SS1 extends from a first side of the top surface portion PS. The first side surface portion SS1 extends from the left side of the top surface portion PS. The first side surface portion SS1 is bent at a first bending line BL1. The first bending line BL1 is the boundary between the top surface portion PS and the first side surface portion SS1. When viewed from above, the first side surface portion SS1 is a quadrilateral surface having a short side in the third direction (Z-axis direction) and a long side in the second direction (Y-axis direction). The first side surface SS1 is the left side surface of the display panel 300. The second side surface portion SS2 extends from a second side of the top surface portion PS. The second side surface portion SS2 extends from the lower side of the top surface portion PS. The second side surface portion SS2 is bent at a second bending line BL2. The second bending line BL2 is the boundary between the top surface portion PS and the second side surface portion SS2. When viewed from above, the second side surface portion SS2 is a quadrilateral surface having a short side in the third direction (Z-axis direction) and a long side in the first direction (X-axis direction). The second side surface portion SS2 is the lower surface of the display panel 300.

[0363] The third side surface portion SS3 extends from a third side of the top surface portion PS. The third side surface portion SS3 extends from the upper side of the top surface portion PS. The third side surface portion SS3 is bent at a third bending line BL3. The third bending line BL3 is the boundary between the top surface portion PS and the third side surface portion SS3. When viewed from above, the third side surface portion SS3 is a quadrilateral surface having a short side in the third direction (Z-axis direction) and a long side in the first direction (X-axis direction). The third side surface portion SS3 is the upper surface of the display panel 300. The fourth side surface portion SS4 extends from the fourth side of the top surface portion PS. The fourth side surface portion SS4 extends from the right side of the top surface portion PS. The fourth side surface portion SS4 is bent at a fourth bending line BL4. The fourth bending line BL4 is the boundary between the top surface portion PS and the fourth side surface portion SS4. The fourth side surface portion SS4 is a quadrilateral surface having a short side in the third direction (Z-axis direction) and a long side in the second direction (Y-axis direction) when viewed from above. The fourth side surface portion SS4 is the right side surface of the display panel 300.

[0364] The first corner portion CS1 is disposed between the first side surface portion SS1 and the second side surface portion SS2. The width of the first corner portion CS1 is smaller than the width of the first side surface portion SS1 and the width of the second side surface portion SS2. Therefore, an empty space ES is provided between a part of the first side surface portion SS1 and a part of the second side surface portion SS2. The second corner portion CS2 is disposed between the first side surface portion SS1 and the third side surface portion SS3. The width of the second corner portion CS2 is smaller than the width of the first side surface portion SS1 and the width of the third side surface portion SS3. Therefore, an empty space ES is provided between a part of the first side surface portion SS1 and a part of the third side surface portion SS3. The third corner portion CS3 is disposed between the second side surface portion SS2 and the fourth side surface portion SS4. The width of the third corner portion CS3 is smaller than the width of the second side surface portion SS2 and the width of the fourth side surface portion SS4. Therefore, an empty space ES is provided between a part of the second side surface portion SS2 and a part of the fourth side surface portion SS4. The fourth corner portion CS4 is disposed between the third side surface portion SS3 and the fourth side surface portion SS4. The width of the fourth corner portion CS4 is smaller than the width of the third side surface portion SS3 and the width of the fourth side surface portion SS4. Therefore, an empty space ES is provided between a part of the third side surface portion SS3 and a part of the fourth side surface portion SS4.

[0365] The pad area PDA extends from one side of the second side surface portion SS2. The pad area PDA is bent at a fifth bending line BL5. The fifth bending line BL5 is the boundary between the second side surface portion SS2 and the pad area PDA. When viewed from above, the pad area PDA is a quadrilateral surface having a short side in the second direction (Y-axis direction) and a long side in the first direction (X-axis direction). The second side surface portion SS2 is the lower surface of the display panel 300 that faces the upper surface.

[0366] The top surface portion PS includes a main display portion MDA that displays a main video. The top surface part PS may not include a non-display part, and thus the entire top surface part PS may be the main display part MDA. The first side surface portion SS1 includes a first sub-display portion SDA1 that displays a first sub-video and a first non-display portion NDA1. The first non-display portion NDA1 is arranged on the upper edge, left edge, and lower edge of the first side surface portion SS1 as shown in FIG. The first sub-display unit SDA1 extends from the left side of the main display unit MDA. The first sub-display area SDA1 is an area of ​​the first side surface area SS1 excluding the first non-display area NDA1. The second side surface section SS2 includes a second sub-display section SDA2 that displays a second sub-video and a second non-display section NDA2. The second non-display portion NDA2 is arranged on the left edge, the lower edge, and the right edge of the second side surface portion SS2 as shown in FIG. The second sub-display unit SDA2 extends from the lower side of the main display unit MDA. The second sub-display area SDA2 is the area of ​​the second side surface area SS2 excluding the sec...

Claims

1. A display device, a display layer including a plurality of light-emitting elements disposed on a substrate; a display panel including a sensor electrode layer disposed on the display layer; the sensor electrode layer has a sensor region including a plurality of sensor electrodes disposed on the display layer and a plurality of first conductive patterns spaced apart from the sensor electrodes and used as antennas; a sensor peripheral area including a plurality of sensor wirings connected to the sensor electrodes; The display device, wherein each of the plurality of first conductive patterns is surrounded by one of the plurality of sensor electrodes.

2. The display device according to claim 1 , wherein the plurality of first conductive patterns are arranged in the same layer as the sensor electrodes.

3. The sensor electrodes include a plurality of sensing electrodes electrically connected in a first direction; a plurality of drive electrodes electrically connected in a second direction intersecting the first direction; a first connection portion that connects adjacent driving electrodes in the second direction and is disposed in a layer different from that of the sensing electrode and the driving electrode; 2. The display device according to claim 1, further comprising: a second connection portion that connects adjacent sensing electrodes in the first direction and is disposed in the same layer as the sensing electrodes and the driving electrodes.

4. The display device of claim 3 , wherein each of the first conductive patterns is surrounded by one of the sensing electrodes or one of the driving electrodes.

5. a third connection portion connecting adjacent first conductive patterns in a first direction among the first conductive patterns; 4. The display device according to claim 3, further comprising: a fourth connection portion that connects adjacent first conductive patterns in a second direction that intersects with the first direction, among the first conductive patterns.

6. the third connection portion is a first sub-connection portion disposed in the same layer as the sensing electrode and the driving electrode; 6. The display device according to claim 5, further comprising: a second sub-connection portion disposed in the same layer as the first connection portion.

7. The display device according to claim 5 , wherein the fourth connection portion is disposed in the same layer as the sensing electrode and the driving electrode.

8. 4. The display device of claim 3, wherein the sensor electrode layer further includes a guard pattern disposed between one of the first conductive patterns and one of the sensing electrodes or one of the driving electrodes.

9. The display device according to claim 8 , wherein the first conductive pattern is surrounded by the guard pattern, and the guard pattern is surrounded by the sensing electrode or the driving electrode.

10. The display device according to claim 9 , wherein the guard pattern is disposed in the same layer as the sensing electrode and the driving electrode.

11. 10. The display device of claim 9, wherein the guard pattern includes a first sub-guard pattern arranged in the same layer as the sensing electrode and the driving electrode, and a second sub-guard pattern arranged in the same layer as the first connection portion.

12. The sensor electrode includes a plurality of proximity sensing electrodes that separate the drive electrode and the sensing electrode and are disposed in the same layer as the sensing electrode and the drive electrode; a fifth connection portion that connects adjacent proximity sensing electrodes in the first direction among the proximity sensing electrodes; The display device of claim 3 , further comprising: a sixth connection portion connecting the proximity sensing electrodes adjacent to each other in the second direction.

13. The display device of claim 12 , wherein each of the proximity sensing electrodes is surrounded by one of the sensing electrodes or one of the driving electrodes.

14. the sixth connection portion is a first sub-connection portion disposed in the same layer as the sensing electrode and the driving electrode; The display device according to claim 12 , further comprising a second sub-connection portion disposed in the same layer as the first connection portion.

15. The display device of claim 14 , wherein the fifth connection portion is disposed in the same layer as the sensing electrode and the driving electrode.

16. The display device according to claim 1 , wherein the first conductive pattern and the sensor electrode do not overlap with light-emitting regions of the plurality of light-emitting elements.

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