Display device and mobile electronic device including the same

Abstract

The invention relates to a display device and a mobile electronic device including the same. The display device includes: a display panel including a display area displaying an image, a non-display area disposed at an edge of the display area, and an antenna area protruding from a portion of the non-display area in a first direction; and an antenna driving substrate electrically connected to the antenna array through an antenna pad disposed adjacent to an end portion of the antenna region. The antenna array is disposed at a boundary between the antenna area and a portion of the non-display area adjacent to the antenna area. The antenna array includes: a plurality of antennas that generate polarized waves in a second direction perpendicular to the first direction and are disposed at intervals along the second direction; and a shielding member disposed between adjacent antennas and connected to a ground.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of Korean Patent Application No. 10-2023-0086398 filed on July 4, 2023 in the Korean Intellectual Property Office, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] Embodiments of the present disclosure relate to a display device and a mobile electronic device including the display device. Background Art

[0004] With the development of information society, more and more demands are put forward for display devices for displaying images in various ways. For example, display devices are used in various electronic devices such as smart phones, digital cameras, laptop computers, navigation devices and smart TVs.

[0005] A display device included in a mobile electronic device may include an antenna for transmitting and receiving electromagnetic waves for wireless communication. For example, the display device includes an antenna for fourth generation (4G) mobile communication (such as long term evolution (LTE)) and fifth generation (5G) mobile communication. The frequency band of the electromagnetic wave varies according to the communication technology, and the shape or length of the antenna varies according to the frequency band of the electromagnetic wave. Summary of the invention

[0006] Embodiments of the present disclosure provide a display device that improves transmission efficiency and reception efficiency of wireless communication in an antenna array including a single-polarization array antenna, and a mobile electronic device including the display device.

[0007] According to an embodiment of the present disclosure, a display device includes: a display panel including a display area for displaying an image, a non-display area arranged at an edge of the display area, and an antenna area protruding from a portion of the non-display area in a first direction; and an antenna driving substrate electrically connected to an antenna array through an antenna pad arranged adjacent to an end of the antenna area. The antenna array is arranged at a boundary between the antenna area and a portion of the non-display area adjacent to the antenna area. The antenna array includes: a plurality of antennas that generate polarized waves in a second direction perpendicular to the first direction and are arranged at intervals along the second direction; and a shielding member arranged between adjacent antennas and connected to a ground line.

[0008] The shield member includes a shield electrode between adjacent antennas, the shield electrode blocking a surface wave formed along the second direction.

[0009] The shield member includes: a first shield electrode connected to the ground line and extending in a first direction; a second shield electrode extending from an end of the first shield electrode in a second direction; and a third shield electrode extending from an end of the first shield electrode in a third direction opposite to the second direction.

[0010] The second shielding electrode and the third shielding electrode may be disposed symmetrically with respect to the first shielding electrode.

[0011] The second shielding electrode and the third shielding electrode are aligned on an imaginary straight line along the second direction or the third direction.

[0012] The shield member further includes a fourth shield electrode extending from an end of the second shield electrode in the first direction and parallel to the first shield electrode; and a fifth shield electrode extending from an end of the third shield electrode in the first direction and parallel to the first shield electrode.

[0013] The length of the fourth shielding electrode and the length of the fifth shielding electrode are equal to each other.

[0014] The length of the fourth shielding electrode or the fifth shielding electrode is shorter than that of the first shielding electrode.

[0015] The antenna array is disposed on the same layer as at least one of electrodes of a thin film transistor disposed in the display region.

[0016] The antenna array is included in a transparent dielectric substrate disposed on an encapsulation layer of a display panel. The transparent dielectric substrate includes: a flexible transparent dielectric layer; an antenna layer disposed on a top surface of the transparent dielectric layer and including an antenna array; and a ground layer disposed on a rear surface of the transparent dielectric layer and including a ground line.

[0017] Each of the multiple antennas includes: a first antenna electrode connected to a feed line and extending in a first direction; a second antenna electrode branched from an end of the first antenna electrode in a second direction and connected to a ground line; and a third antenna electrode branched from an end of the first antenna electrode in a third direction opposite to the second direction and connected to the ground line.

[0018] The length of the second antenna electrode in the second direction is greater than the length of the third antenna electrode in the third direction.

[0019] Each of the plurality of antennas includes at least one slot.

[0020] The display device further includes: an auxiliary shielding member provided on each of both sides of the antenna array, and a structure of the auxiliary shielding member is the same as a structure of the shielding member.

[0021] At least a portion of the antenna area is bent and parallel to the antenna array below the display panel.

[0022] According to an embodiment of the present disclosure, a mobile electronic device includes: a display panel including a display area for displaying an image, a non-display area arranged at an edge of the display area, and an antenna area protruding from a portion of the non-display area in a first direction; and an antenna driving substrate electrically connected to an antenna array through an antenna pad arranged adjacent to an end of the antenna area. The antenna array includes: a plurality of antennas that generate polarized waves in a second direction perpendicular to the first direction and are arranged at intervals along the second direction; and a shielding member that is arranged between adjacent antennas and connected to a ground line. The shielding member includes a shielding electrode that blocks surface waves formed along the second direction between adjacent antennas.

[0023] The antenna array is disposed at a boundary between the antenna region and a portion of the non-display region adjacent to the antenna region.

[0024] The shield member includes: a first shield electrode connected to the ground line and extending in a first direction; a second shield electrode extending from an end of the first shield electrode in a second direction; and a third shield electrode extending from an end of the first shield electrode in a third direction opposite to the second direction.

[0025] The second shielding electrode and the third shielding electrode are disposed symmetrically with respect to the first shielding electrode.

[0026] The second shielding electrode and the third shielding electrode are aligned on an imaginary straight line along the second direction or the third direction.

[0027] According to the display device and the mobile electronic device including the same according to the embodiment, the transmission efficiency and the reception efficiency of wireless communication are improved in the antenna array including the single-polarization array antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 and Figure 2 is a plan view of a display device according to an embodiment.

[0029] Figure 3 and Figure 4 is a side view of a display device according to an embodiment.

[0030] Figure 5 and Figure 6 is a plan view of a display device according to an embodiment.

[0031] Figure 7 is a plan view of an antenna region according to a comparative example.

[0032] Figure 8 Surface waves generated by the antenna array of the comparative example and performance degradation caused by the surface waves are shown.

[0033] Fig. 9 is a plan view of an example of an antenna region according to an embodiment.

[0034] Fig.10 is a plan view of another example of the antenna region according to the embodiment.

[0035] Fig.11 is a plan view of an example of an antenna array according to an embodiment.

[0036] Fig.12 is a plan view of a shield electrode according to an embodiment.

[0037] Fig.13 A characteristic graph of an antenna according to an embodiment is shown.

[0038] Fig.14 The radiation pattern of an antenna according to an embodiment is shown.

[0039] Fig.15 An antenna according to an embodiment is shown.

[0040] Fig.16 is a cross-sectional view of a display region of a display panel according to an embodiment.

[0041] Fig.17 is a cross-sectional view of a boundary between an antenna region and a non-display region adjacent thereto in a display device according to an embodiment.

[0042] Fig.18 is a cross-sectional view of a display device in which a transparent dielectric substrate including an antenna is attached to a display panel according to an embodiment. DETAILED DESCRIPTION

[0043] Embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.

[0044] It will be understood that when a layer is referred to as being 'on' another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may also be present. The same reference numerals may refer to the same components throughout the specification.

[0045] The features of each of the various embodiments of the present disclosure may be partially or completely combined with each other and may interact with each other differently in technology, and the various embodiments may be implemented independently of each other, or may be implemented together in association with each other.

[0046] Hereinafter, embodiments will be described with reference to the accompanying drawings.

[0047] Figure 1 and Figure 2 is a plan view of a display device according to an embodiment.

[0048] refer to Figure 1 and Figure 2 , the display device 10 according to the embodiment can be incorporated into mobile electronic devices such as mobile phones, smart phones, tablet personal computers, mobile communication terminals, electronic notepads, e-books, portable multimedia players (PMP), navigation systems, ultra-mobile PCs (UMPCs), etc. In addition, the display device 10 according to the embodiment can be used as a display unit of a TV, a laptop computer, a monitor, a billboard, or an Internet of Things (IoT) terminal. In addition, the display device 10 according to the embodiment can be incorporated into wearable devices such as smart watches, watch phones, glasses-type displays, or head-mounted displays (HMD). In addition, the display device 10 according to the embodiment can be incorporated into a dashboard of a vehicle, a central instrument panel of a vehicle, a central information display (CID) set on the dashboard of a vehicle, a rearview mirror display instead of a side mirror of a vehicle, or a display for rear seat entertainment set on the rear surface of a front seat of a vehicle.

[0049] In the present disclosure, the first direction (X-axis direction) is the long side direction of the display device 10, such as the vertical direction of the display device 10. The second direction (Y-axis direction) is the short side direction of the display device 10, such as the horizontal direction of the display device 10. The third direction (Z-axis direction) is the thickness direction of the display device 10. The angle at which the long side in the first direction (X-axis direction) and the short side in the second direction (Y-axis direction) intersect may be rounded with a predetermined curvature or may be a right angle.

[0050] The display device 10 according to the embodiment includes a display panel 300, a display circuit board 310, a display driving circuit 320, a touch driving circuit 330, and an antenna circuit board 340. A connector 341 is formed on one side of the antenna circuit board 340.

[0051] The display panel 300 is a light-emitting display panel including a light-emitting element. For example, the display panel 300 is one of an organic light-emitting display panel using an organic light-emitting diode including an organic light-emitting layer, a micro light-emitting diode display panel using micro LEDs, a quantum dot light-emitting display panel using a quantum dot light-emitting diode including a quantum dot light-emitting layer, and an inorganic light-emitting display panel using an inorganic light-emitting element including an inorganic semiconductor.

[0052] The display panel 300 may be a flexible display panel that can be easily bent, folded, or rolled. For example, the display panel 300 is one of a foldable display panel that can be folded and unfolded, a curved display panel having a curved display surface, a curved display panel having a curved area other than a display surface, a rollable display panel that can be rolled up and out, and a stretchable display panel that can be stretched.

[0053] The display panel 300 includes a main area MA, a sub area SBA protruding from one side of the main area MA, and an antenna area AA protruding from the other side of the main area MA.

[0054] The main area MA includes a display area DA that displays an image and a non-display area NDA that is a periphery of the display area DA. The display area DA occupies most of the main area MA. The display area DA is disposed at the center of the main area MA. The non-display area NDA is outside the display area DA. The non-display area NDA is an edge area of ​​the display panel 300. The non-display area NDA may be referred to as a dead zone area (e.g., Figure 7 DS in ).

[0055] The sub-region SBA protrudes from one side of the main region MA in the first direction (X-axis direction). For example, the one side of the main region MA is the lower side of the main region MA. Figure 1 As shown in the figure, the length of the sub-region SBA in the first direction (X-axis direction) is smaller than the length of the main region MA in the first direction (X-axis direction), and the length of the sub-region SBA in the second direction (Y-axis direction) is smaller than the length of the main region MA in the second direction (Y-axis direction), but the embodiments of the present disclosure are not necessarily limited to this.

[0056] refer to Figure 2 In an embodiment, the sub-region SBA may be curved, and at least a portion of the curved sub-region SBA is disposed under the display panel 300. For example, at least a portion of the sub-region SBA overlaps the main region MA of the display panel 300 in the third direction (Z-axis direction).

[0057] The display pad DPD is arranged at one side edge of the sub-region SBA. One side edge of the sub-region SBA is the lower side edge of the sub-region SBA. The display circuit board 310 is attached to the display pad DPD of the sub-region SBA. The display circuit board 310 is attached to the display pad DPD of the sub-region SBA by using a conductive adhesive member such as an anisotropic conductive film and / or anisotropic conductive paste. The display circuit board 310 may be a flexible printed circuit board (FPCB) that can be bent, a rigid printed circuit board (PCB) that cannot be bent, or a composite printed circuit board including both a rigid printed circuit board and a flexible printed circuit board.

[0058] The display driving circuit 320 is disposed on the sub-area SBA of the display panel 300. The display driving circuit 320 receives a control signal and a power supply voltage, and generates and outputs a signal and a voltage to drive the display panel 300. The display driving circuit 320 is formed as an integrated circuit (IC).

[0059] The touch driving circuit 330 is provided on the display circuit board 310 . The touch driving circuit 330 is formed as an integrated circuit. The touch driving circuit 330 is attached to the display circuit board 310 .

[0060] The touch driving circuit 330 is electrically connected to the sensor electrodes of the sensor electrode layer of the display panel 300 through the display circuit board 310. The touch driving circuit 330 outputs a touch driving signal to each of the sensor electrodes and senses a voltage change according to mutual capacitance of the sensor electrodes.

[0061] The sensor electrode layer of the display panel 300 can sense proximity touch and / or contact touch. Contact touch means that an object such as a human finger or a pen is in direct contact with a cover window disposed above the sensor electrode layer. Proximity touch means that an object such as a human finger or a pen is sensed when positioned above the cover window (such as hovering).

[0062] A power supply unit and a display driving circuit 320 that provide a driving voltage for driving display pixels of the display panel 300 may be additionally disposed on the display circuit board 310. In other embodiments, the power supply unit is integrated with the display driving circuit 320, and, for example, the display driving circuit 320 and the power supply unit are formed as a single integrated circuit.

[0063] The antenna area AA includes at least one of an antenna electrode, a feeder line, and a ground line of an antenna module for wireless communication. The antenna area AA protrudes from the other side of the main area MA in the first direction (X-axis direction). For example, the other side of the main area MA is the upper side of the main area MA. Figure 1 As shown in the figure, the length of the antenna area AA in the first direction (X-axis direction) is smaller than the length of the main area MA in the first direction (X-axis direction), and the length of the antenna area AA in the second direction (Y-axis direction) is smaller than the length of the main area MA in the second direction (Y-axis direction), but the embodiments of the present disclosure are not necessarily limited to this.

[0064] like Figure 2 As shown in FIG, at least a portion of the antenna area AA is bent, and at least a portion of the bent antenna area AA is disposed below the display panel 300. For example, at least a portion of the antenna area AA overlaps the main area MA of the display panel 300 in the third direction (Z-axis direction).

[0065] The antenna pad APD is provided at one side edge of the antenna area AA. The antenna circuit board 340 is attached to the antenna pad APD of the antenna area AA. The antenna circuit board 340 is attached to the antenna pad APD of the antenna area AA by using a conductive adhesive member such as an anisotropic conductive film and / or an anisotropic conductive adhesive. One side of the antenna circuit board 340 includes a main circuit board 400 (see FIG. 1 ) connected to which the antenna driving circuit 350 is mounted. Figure 4 ) connector 341. The antenna circuit board 340 is a flexible printed circuit board (FPCB) that can be bent.

[0066] Figure 3 and Figure 4 is a side view of a display device according to an embodiment.

[0067] refer to Figure 3 and Figure 4 The display device 10 according to the embodiment includes a display panel 300, a polarizing film PF, a cover window CW, and a panel cover PB. The display panel 300 includes a substrate SUB, a display layer DISL, an encapsulation layer ENC, and a sensor electrode layer SENL.

[0068] The substrate SUB is formed of an insulating material such as a polymer resin. The substrate SUB is a flexible substrate that can be bent, folded, or rolled.

[0069] In the main area MA, the display layer DISL is disposed on the substrate SUB. The display layer DISL includes an emission area displaying an image. The display layer DISL includes a thin film transistor layer in which thin film transistors are formed and a light emitting element layer in which a light emitting element emitting light is disposed in the emission area.

[0070] In the display area DA (see Figure 1 ) are provided to drive the scanning lines, data lines, power lines, etc. of the light emitting elements in the emission area. Figure 1 ) are provided with a scan driver for outputting scan signals to the scan lines, a fan-out line for connecting the data lines and the display drive circuit 320, and the like.

[0071] The encapsulation layer ENC is disposed on the display layer DISL. The encapsulation layer ENC encapsulates the light emitting element layer of the display layer DISL to prevent oxygen or moisture from penetrating into the light emitting element layer of the display layer DISL. The encapsulation layer ENC is disposed on the top surface and the side surface of the display layer DISL.

[0072] The sensor electrode layer SENL is disposed on the display layer DISL. In an embodiment, the sensor electrode layer SENL is disposed on the encapsulation layer ENC. The sensor electrode layer SENL includes sensor electrodes. The sensor electrode layer SENL may sense a touch using the sensor electrodes.

[0073] The polarization film PF is disposed on the sensor electrode layer SENL. The polarization film PF includes a first base member, a linear polarization plate, a phase delay film such as a quarter wave plate (λ / 4 plate), and a second base member. The first base member, the phase delay film, the linear polarization plate, and the second base member are sequentially stacked on the sensor electrode layer SENL.

[0074] The cover window CW is disposed on the polarizing film PF. The cover window CW may be attached to the polarizing film PF by a transparent adhesive member such as an optically clear adhesive (OCA) film.

[0075] The panel cover PB is disposed under the display panel 300. The panel cover PB may be attached to the bottom surface of the display panel 300 by an adhesive member. The adhesive member may be a pressure sensitive adhesive (PSA). The panel cover PB includes at least one of a light blocking member that absorbs incident external light, a buffer member that absorbs external impact, and a heat dissipation member that effectively dissipates heat from the display panel 300.

[0076] The light blocking member is disposed under the display panel 300. The light blocking member blocks light transmission, thereby preventing components disposed under the light blocking member such as the display circuit board 310 from being observed from above the display panel 300. The light blocking member includes a light absorbing material such as a black pigment, a black dye, or the like.

[0077] The buffer member is disposed below the light blocking member. The buffer member absorbs external impact to prevent the display panel 300 from being damaged. The buffer member may be formed of a single layer or a plurality of layers. For example, the buffer member is formed of a polymer resin such as polyurethane (PU), polycarbonate (PC), polypropylene (PP) or polyethylene (PE), or includes an elastic material such as a foam sponge obtained from rubber, urethane-based material or acrylic material.

[0078] The heat dissipation member includes a first heat dissipation layer including graphite or carbon nanotubes and a second heat dissipation layer formed of a metal thin film including at least one of copper, nickel, ferrite and silver (which is a thermally conductive material that can shield electromagnetic waves).

[0079] According to the implementation mode, Figure 4 As shown in FIG. 1 , the substrate SUB may be bent in the sub-area SBA and may be disposed under the display panel 300. The sub-area SBA of the substrate SUB is attached to the bottom surface of the panel cover PB by a first adhesive member 391. The first adhesive member 391 is a pressure sensitive adhesive.

[0080] According to the implementation mode, Figure 4 As shown in FIG. 3 , the antenna area AA of the substrate SUB may be bent and may be disposed under the display panel 300. The antenna area AA of the substrate SUB is attached to the bottom surface of the panel cover PB by a second adhesive member 392. The second adhesive member 392 is a pressure sensitive adhesive.

[0081] The display circuit board 310 is attached to the display pad DPD of the sub-area SBA of the substrate SUB by using a conductive adhesive member such as an anisotropic conductive film or an anisotropic conductive adhesive (see Figure 1 The display circuit board 310 includes a connector 311 connected to a flexible printed circuit board 312. The display circuit board 310 is connected to a connector 352 of the main circuit board 400 through the flexible printed circuit board 312.

[0082] The touch driving circuit 330 is provided on the display circuit board 310. The touch driving circuit 330 generates touch data according to a change in an electric signal sensed by each of the sensor electrodes of the sensor electrode layer SENL of the display panel 300, and transmits the touch data to the main processor 410 of the main circuit board 400, and the main processor 410 calculates the touch coordinates where a touch has occurred by analyzing the touch data.

[0083] The antenna circuit board 340 is attached to the antenna pad APD of the antenna area AA of the substrate SUB by using a conductive adhesive member such as an anisotropic conductive film or an anisotropic conductive adhesive (see Figure 1 ). The connector 341 of the antenna circuit board 340 is connected to the connector 351 of the main circuit board 400. The antenna area AA is connected to the main circuit board 400 through the antenna circuit board 340.

[0084] The main circuit board 400 is a rigid printed circuit board (PCB) that is rigid and does not bend easily. The main processor 410 and the antenna driving circuit 350 are disposed on the main circuit board 400 .

[0085] The antenna driving circuit 350 is electrically connected to the antenna ANT of the display panel 300 through the antenna circuit board 340 (see Fig. 9 ). Therefore, the antenna driving circuit 350 receives an electromagnetic signal through the antenna ANT and outputs an electromagnetic signal to be transmitted through the antenna ANT. The antenna circuit board 340 is formed of an integrated circuit (IC).

[0086] The antenna driving circuit 350 processes electromagnetic signals sent and received by the antenna ANT. For example, the antenna driving circuit 350 can change the amplitude of the electromagnetic signal received by the antenna ANT. In other embodiments, the antenna driving circuit 350 can change the phase and amplitude of the electromagnetic signal received by the antenna electrode. The antenna driving circuit 350 sends the processed electromagnetic signal to the mobile communication module. The mobile communication module can be set on the main circuit board 400.

[0087] The antenna driving circuit 350 changes the amplitude of the electromagnetic signal received from the mobile communication module. In other embodiments, the antenna driving circuit 350 changes the phase and amplitude of the electromagnetic signal received from the mobile communication module. The antenna driving circuit 350 sends the processed electromagnetic signal to the antenna ANT.

[0088] Figure 5 is a plan view of a display device according to an embodiment. Figure 6 is a plan view of a display device according to an embodiment.

[0089] Figure 5 The implementation method and Figure 1 and Figure 2 The embodiment of FIG. 1 is different in that the antenna area AA protrudes from the left side of the main area MA in the second direction (Y-axis direction). Figure 6 The implementation method and Figure 1 and Figure 2 The difference of the embodiment of FIG. 1 is that the antenna area AA protrudes from the right side of the main area MA in the second direction (Y-axis direction). Figure 5 and Figure 6 In the Figure 1 and Figure 2 Redundant description of some of the embodiments described in the description.

[0090] like Figure 5 and Figure 6 As shown in , in some embodiments, the antenna area AA protrudes from one side of the main area MA, and the one side of the main area MA is one of the upper side, the lower side, the left side, or the right side of the main area MA.

[0091] In addition, the antenna area AA may protrude from the lower side of the main area MA in the first direction (X-axis direction), or the antenna area AA may be spaced apart from the sub-area SBA in the second direction (Y-axis direction). For example, the length of the antenna area AA in the first direction (X-axis direction) is smaller than the length of the sub-area SBA in the first direction (X-axis direction), and the length of the antenna area AA in the second direction (Y-axis direction) is smaller than the length of the sub-area SBA in the second direction (Y-axis direction), but the embodiments of the present disclosure are not necessarily limited thereto.

[0092] In the following description, we will focus on Figure 1 and Figure 2 The antenna ANT formed in the antenna area AA and the non-display area NDA adjacent thereto is described in the embodiment, but the characteristics of the antenna ANT described below may also be applied to Figure 5 and Figure 6 implementation method.

[0093] Figure 7 is a plan view of the antenna area AA according to the comparative example. Figure 8 Surface waves generated by the antenna array ANTA of the comparative example and performance degradation caused by the surface waves are shown.

[0094] exist Figure 7 and Figure 8, the dotted line 700 is an imaginary boundary line that divides the antenna area AA and the dead zone area DS as the non-display area NDA. The display panel according to the comparative example may be bent along the imaginary boundary line that divides the antenna area AA and the dead zone area DS. In the illustrated example, the area positioned on the upper side of the boundary line 700 represents a portion of the antenna area AA, and the area positioned on the lower side of the boundary line 700 represents a portion of the dead zone area DS. For example, Figure 7 As shown in FIG. 1 , the antenna ANT of the antenna array ANTA according to the comparative example is disposed in the dead zone area DS adjacent to the antenna area AA, and the feeder line FL and the ground line GND connected to the antenna ANT are disposed in the antenna area AA. Figure 8 As shown in , some of the antennas ANT of the antenna array ANTA according to the comparative example are arranged in the dead zone area DS above the boundary line 700 .

[0095] According to the comparative example, the display panel of the display device includes an antenna array ANTA disposed in a portion of the non-display area NDA. The antenna array ANTA includes a single-polarization array antenna ANT. For example, the antennas ANT of the antenna array ANTA may be disposed at equal or unequal intervals along the second direction DR2.

[0096] Each of the antennas ANT of the antenna array ANTA is configured to generate an electromagnetic wave having a single polarization, such as a polarization in the second direction DR2. Figure 7 and Figure 8 A first antenna ANT1 connected to a first feeder line FL1 and a second antenna ANT2 connected to a second feeder line FL2 are shown as examples of the single-polarization array antenna ANT according to the comparative example.

[0097] According to the comparative example, the antennas ANT in the antenna array ANTA are driven independently. For example, while the first antenna ANT1 is in the on state and generates a polarized wave in the second direction DR2, the second antenna ANT2 does not work. For example, while the second antenna ANT2 is in the on state and generates a polarized wave in the second direction DR2, the first antenna ANT1 does not work. In addition, the first antenna ANT1 and the second antenna ANT2 can work simultaneously. In the comparative example, the settings related to beam forming and beam steering can be changed by independently driving the antennas ANT in the antenna array ANTA.

[0098] According to the comparative example, since the antennas ANT in the antenna array ANTA are spaced apart from each other along the second direction DR2, interference may occur between the antennas ANT. For example, when a specific antenna ANT is operating, the antenna ANT adjacent thereto is affected by the electromagnetic coupling occurring along the second direction DR2. For example, when the first antenna ANT1 is driven in the on state and the second antenna ANT2 is driven in the off state, the polarized wave in the second direction DR2 generated by the first antenna ANT1 generates a surface wave 701 in the second direction DR2. The generated surface wave 701 is transmitted from the first antenna ANT1 to the adjacent second antenna ANT2. For example, the second antenna ANT2 may operate while being coupled to the first antenna ANT1 unintentionally. Interference between the antennas ANT may inadvertently cause beam forming and beam steering, and thus may reduce the efficiency of the antenna ANT.

[0099] The display panel 300 according to the embodiment of the present disclosure includes the antenna array ANTA, and uses the shielding member 910 (see FIG. 9 ) that blocks the influence of electromagnetic coupling such as surface waves generated from the adjacent antenna ANT along the second direction DR2. Fig. 9 ). Therefore, compared with the comparative example, the antenna array ANTA in the display panel 300 according to the embodiment of the present disclosure improves the efficiency of the antenna ANT. Figures 9 to 15 The antenna array ANTA according to an embodiment of the present disclosure is described in detail.

[0100] Fig. 9 An example of an antenna area AA according to an embodiment is shown. Fig.10 Another example of an antenna area AA according to an embodiment is shown.

[0101] exist Fig. 9 and Fig.10 , the dotted line 900 is an imaginary boundary line dividing the antenna area AA and the dead zone area DS. The display panel 300 according to the embodiment may be bent along the imaginary boundary line 900 dividing the antenna area AA and the dead zone area DS. In the illustrated example, the area positioned on the upper side of the boundary line 900 represents a portion of the antenna area AA, and the area positioned on the lower side of the boundary line 900 represents a portion of the dead zone area DS. For example, Fig. 9 As shown in , the antenna ANT of the antenna array ANTA is arranged in the dead zone area DS adjacent to the antenna area AA, and the feed line FL and the ground line GND connected to the antenna ANT are arranged in the antenna area AA. In another embodiment, as Fig.10 As shown in , some of the antennas ANT of the antenna array ANTA are arranged in the dead zone area DS above the boundary line 900.

[0102] According to an embodiment, the display panel 300 of the display device 10 includes an antenna array ANTA disposed in a portion of the non-display area NDA. The antenna array ANTA includes a single-polarization array antenna ANT. In addition, the antennas ANT of the antenna array ANTA may be arranged at equal or unequal intervals along the second direction DR2. In some embodiments, the antennas ANT of the antenna array ANTA are arranged in an atypical arrangement such as a zigzag shape along the second direction DR2.

[0103] Each of the antennas ANT of the antenna array ANTA is configured to generate an electromagnetic wave having a single polarization, such as a polarization in the second direction DR2. Fig. 9 and Fig.10 A first antenna ANT1 connected to a first feeder FL1 and a second antenna ANT2 connected to a second feeder FL2 are shown as examples of single-polarization array antennas ANT according to an embodiment. However, the embodiments of the present disclosure are not necessarily limited thereto. In other embodiments, in addition to the first antenna ANT1 and the second antenna ANT2 shown, the antenna array ANTA also includes one or more antennas ANT arranged side by side with the first antenna ANT1 and the second antenna ANT2 along a second direction DR2.

[0104] According to an embodiment, the antenna ANT included in the antenna array ANTA can be driven independently. For example, while the first antenna ANT1 is in an on state and generates a polarized wave in the second direction DR2, the second antenna ANT2 does not work, and while the second antenna ANT2 is in an on state and generates a polarized wave in the second direction DR2, the first antenna ANT1 does not work. In addition, the first antenna ANT1 and the second antenna ANT2 can work simultaneously. In an embodiment of the present disclosure, settings related to beamforming and beam steering are changed by independently driving the antennas ANT in the antenna array ANTA.

[0105] As reference Figure 7 and Figure 8 As described, when the antennas ANT in the antenna array ANTA are spaced apart from each other along a specific direction, interference may occur between the antennas ANT. In an embodiment of the present disclosure, a shielding member 910 is provided between adjacent antennas ANT to block interference such as surface waves between the antennas ANT.

[0106] According to an embodiment, the shielding member 910 includes shielding electrodes 911, 912, 913, 914, and 915 (see FIG. 1 ) disposed between adjacent antennas ANT and connected to a ground line GND. Fig.11 ). Shielding electrodes 911, 912, 913, 914 and 915 (see Fig.11) blocks the influence of electromagnetic coupling (such as surface wave 901 occurring from the specific antenna ANT along the second direction DR2) during the operation of the specific antenna ANT. Therefore, the antennas ANT in the antenna array ANTA operate independently, and the interference between them is minimized, thereby improving the efficiency of the antenna ANT.

[0107] Hereinafter, the characteristics of the antenna array ANTA will be described by focusing on the first antenna ANT1 among the plurality of antennas ANT in the antenna array ANTA. The characteristics of the first antenna ANT1 to be described below are applicable to the other antennas ANT in the antenna array ANTA.

[0108] According to an embodiment, the first antenna ANT1 is arranged in a dead zone area DS adjacent to the antenna area AA. The first antenna ANT1 is connected to a first feeder FL1 and a ground line GND arranged in the antenna area AA. The first feeder FL1 is arranged between adjacent ground lines GND. The first feeder FL1 has a grounded coplanar waveguide (GCPW) structure. In another embodiment, the first feeder FL1 has a coplanar waveguide (CPW) structure.

[0109] In the antenna area AA, the first feed line FL1 and the ground line GND extend in the first direction DR1 and are thus electrically connected to the antenna pad APD (see, for example Figure 1 ).

[0110] The first antenna ANT1 includes a structure obtained by tuning the shape of a dipole antenna. The first antenna ANT1 includes an asymmetric antenna structure with respect to the first feed line FL1 to generate a field in a second direction DR2 (e.g., Y-axis direction) perpendicular to the first direction DR1 (e.g., X-axis direction). For example, the antenna structure includes antenna electrodes AE1, AE2, and AE3 (see Fig.15 ) and formed on the antenna electrodes AE1, AE2 and AE3 (see Fig.15 ) in one or more slots S1 and S2 (see Fig.15 ) (or slits). In each first antenna ANT1, slots S1 and S2 (see Fig.15 ) (or slits) are antenna electrodes AE1, AE2 and AE3 (see Fig.15 ) between which no metal space is formed. Fig.15 The structure of each antenna ANT of the antenna array ANTA according to an embodiment of the present disclosure is described in detail.

[0111] Fig.11 is a plan view of an antenna array ANTA according to an embodiment.

[0112] refer to Fig.11According to an embodiment, the display panel 300 includes an antenna array ANTA disposed in the non-display area NDA. The antenna array ANTA is disposed in the non-display area NDA and is disposed adjacent to the antenna area AA. The antenna array ANTA includes a plurality of antennas ANT connected to a feed line FL and a ground line GND disposed in the antenna area AA.

[0113] The array of the plurality of antennas ANT is a single polarization array antenna ANT. For example, the plurality of antennas ANT may be arranged at equal or unequal intervals along the second direction DR2. Fig.11 An antenna array ANTA is shown including a first antenna ANT1, a second antenna ANT2, a third antenna ANT3 and a fourth antenna ANT4 sequentially arranged along the second direction DR2, but the embodiments of the present disclosure are not necessarily limited thereto. For example, the antenna array ANTA may also include one or more antennas ANT sequentially arranged along the second direction DR2.

[0114] A shielding member 910 including shielding electrodes 911, 912, 913, 914, and 915 is disposed between a plurality of antennas ANT. For example, the shielding member 910 is disposed between the first antenna ANT1 and the second antenna ANT2, and the corresponding shielding member 910 blocks surface waves that may be generated between the first antenna ANT1 and the second antenna ANT2. In addition, the shielding member 910 is disposed between the second antenna ANT2 and the third antenna ANT3, and the corresponding shielding member 910 blocks surface waves that may be generated between the second antenna ANT2 and the third antenna ANT3. Similarly, the shielding member 910 is disposed between the third antenna ANT3 and the fourth antenna ANT4, and the corresponding shielding member 910 blocks surface waves that may be generated between the third antenna ANT3 and the fourth antenna ANT4.

[0115] In addition, the shielding member 910 is not only provided between adjacent antennas ANT, but also provided on each of the two sides of the antenna array ANTA. For example, the auxiliary shielding member 920 is provided on each of the two sides of the antenna array ANTA. The structure of the auxiliary shielding member 920 is substantially the same as that of the shielding member 910 provided between adjacent antennas ANT.

[0116] According to an embodiment, a plurality of antennas ANT are driven independently. For example, a plurality of antennas ANT are connected one-to-one with a plurality of feeders FL provided in an antenna area AA, respectively. For example, a first antenna ANT1 is connected to a first feeder FL1 and a ground line GND. A second antenna ANT2 is connected to a second feeder FL2 and a ground line GND. A third antenna ANT3 is connected to a third feeder FL3 and a ground line GND. A fourth antenna ANT4 is connected to a fourth feeder FL4 and a ground line GND. The first antenna ANT1 to the fourth antenna ANT4 have the same structure.

[0117] According to an embodiment, the shielding member 910 (or the auxiliary shielding member 920 ) includes shielding electrodes 911 , 912 , 913 , 914 , and 915 that block surface waves generated between adjacent antennas ANT along the second direction DR2 .

[0118] like Fig.11 As shown in FIG. 1 , the shielding electrodes 911, 912, 913, 914, and 915 are formed in a fork shape as a whole. For example, the shielding member 910 includes a first shielding electrode 911 connected to the ground line GND and extending in a first direction DR1, a second shielding electrode 912 extending from an end of the first shielding electrode 911 in a second direction DR2, and a third shielding electrode 913 extending from an end of the first shielding electrode 911 in a third direction DR3 opposite to the second direction DR2.

[0119] According to an embodiment, the second shielding electrode 912 and the third shielding electrode 913 are symmetrically disposed with respect to the first shielding electrode 911. For example, the second shielding electrode 912 and the third shielding electrode 913 are aligned on an imaginary straight line 1101 extending along the second direction DR2 or the third direction DR3, and have the same length. For example, the length of the second shielding electrode 912 along the second direction DR2 is substantially the same as the length of the third shielding electrode 913 along the third direction DR3.

[0120] According to an embodiment, each shielding member 910 further includes a fourth shielding electrode 914 extending from an end of the second shielding electrode 912 in the first direction DR1 along a side of the first shielding electrode 911, and a fifth shielding electrode 915 extending from an end of the third shielding electrode 913 in the first direction DR1 along a side of the first shielding electrode 911. The length of the fourth shielding electrode 914 is the same as the length of the fifth shielding electrode 915. For example, the length of the fourth shielding electrode 914 along the first direction DR1 is substantially the same as the length of the fifth shielding electrode 915 along the first direction DR1. According to an embodiment, the length of the fourth shielding electrode 914 or the fifth shielding electrode 915 is smaller than the length of the first shielding electrode 911.

[0121] According to an embodiment, the lengths of the shielding electrodes 911, 912, 913, 914, and 915 constituting the shielding member 910 are set in consideration of the driving frequency of each antenna ANT. For example, the total length of the shielding electrodes 911, 912, 913, 914, and 915 starting from the fourth shielding electrode 914 and continuing to the second shielding electrode 912, the third shielding electrode 913, and the fifth shielding electrode 915 is set to block the surface wave generated by the adjacent antenna ANT when the corresponding antenna ANT operates in a transmission mode such as a TX mode.

[0122] Fig.11 The shielding electrodes 911, 912, 913, 914, and 915 are shown to be formed in a fork shape as a whole, but the shapes of the shielding electrodes 911, 912, 913, 914, and 915 are not necessarily limited thereto. Fig.12 As shown in FIG. 1 , the shielding electrodes 911 , 912 , and 913 have a shape of a capital letter “T” of the English alphabet as a whole.

[0123] Fig.12 is a plan view of another form of a shield electrode according to an embodiment.

[0124] Fig.12 The implementation method and Fig.11 The difference between the embodiments of the present invention is that the shielding electrodes 911, 912 and 913 have the shape of a capital letter "T" of the English alphabet as a whole. Fig.12 In the Fig.11 Redundant description of some of the embodiments described in the description.

[0125] refer to Fig.12 The shielding electrodes 911, 912 and 913 form a shape of a capital letter "T" of the English alphabet as a whole. The shielding member 910 includes a first shielding electrode 911 connected to the ground line GND and extending in a first direction DR1, a second shielding electrode 912 extending from an end of the first shielding electrode 911 in a second direction DR2, and a third shielding electrode 913 extending from an end of the first shielding electrode 911 in a third direction DR3 opposite to the second direction DR2.

[0126] According to an embodiment, the second shielding electrode 912 and the third shielding electrode 913 are symmetrically disposed with respect to the first shielding electrode 911. For example, the second shielding electrode 912 and the third shielding electrode 913 are aligned on an imaginary straight line 1101 along the second direction DR2 or the third direction DR3 and have the same length. For example, the length of the second shielding electrode 912 along the second direction DR2 is substantially the same as the length of the third shielding electrode 913 along the second direction DR2.

[0127] Fig.13 A characteristic graph of the antenna ANT according to the embodiment is shown. Fig.14 A radiation pattern of an antenna ANT according to an embodiment is shown.

[0128] refer to Fig.13 and Fig.14, the antenna ANT as a Y-axis polarized antenna according to the embodiment has the following characteristics, but the embodiments of the present disclosure are not necessarily limited thereto. For example, the antenna ANT according to the embodiment has a peak gain of up to 8.1dBi at about 28.2GHz, and can have an operating frequency of about 3.8GHz in the range of about 25.2GHz to about 29GHz. For the antenna array ANTA according to the embodiment, the distance between adjacent antennas ANT is about 6mm, and the design standard of the distance can be changed within about 5.35mm to about 7mm corresponding to half the wavelength of the frequency. The antenna ANT according to the embodiment has a cross-polarization discrimination (XPD) of up to 12.5dB in a direction perpendicular to the front surface of the display panel 300.

[0129] Fig.15 An antenna ANT according to an embodiment is shown.

[0130] refer to Fig.15 , the antenna ANT according to the embodiment includes a first antenna electrode AE1 connected to a feed line FL, and second and third antenna electrodes AE2 and AE3 branched from the first antenna electrode AE1.

[0131] According to an embodiment, the first antenna electrode AE1 is disposed between the second antenna electrode AE2 and the third antenna electrode AE3. The second antenna electrode AE2 branches from one end of the first antenna electrode AE1 in one direction (such as the third direction DR3) and is connected to the ground line GND. The third antenna electrode AE3 branches from one end of the first antenna electrode AE1 in another direction (such as the second direction DR2) and is connected to the ground line GND.

[0132] According to an embodiment, the second antenna electrode AE2 and the third antenna electrode AE3 have an asymmetric shape relative to the first antenna electrode AE1. For example, the length of the second antenna electrode AE2 in the third direction DR3 is greater than the length of the third antenna electrode AE3 in the second direction DR2. However, the embodiment is not necessarily limited thereto, and in some embodiments, the length of the second antenna electrode AE2 in the third direction DR3 is less than the length of the third antenna electrode AE3 in the second direction DR2.

[0133] The second antenna electrode AE2 and the third antenna electrode AE3 include a slot S1 and a slot S2 extending in the second direction DR2 and the third direction DR3, respectively. The slot S1 of the second antenna electrode AE2 and the slot S2 of the third antenna electrode AE3 are formed asymmetrically with respect to the first antenna electrode AE1. For example, the length of the slot S1 of the second antenna electrode AE2 is longer than the length of the slot S2 of the third antenna electrode AE3.

[0134] According to an embodiment, the slots S1 and S2 respectively included in the second antenna electrode AE2 and the third antenna electrode AE3 have a length extending in the second direction DR2 (Y-axis direction), and the length and width thereof may be variously changed in consideration of impedance matching.

[0135] Fig.16 is a cross-sectional view of a portion of a display region of a display panel 300 according to an embodiment.

[0136] refer to Fig.16 , in the display panel 300 according to the embodiment, the flexible substrate SUB is a base substrate.

[0137] The display layer DISL includes a thin film transistor layer TFTL and a light emitting element layer EML disposed on one surface of the substrate SUB, and a sensor electrode layer SENL including a sensor electrode is disposed on the encapsulation layer ENC. A polarizing film PF is disposed on the sensor electrode layer SENL, and a cover window CW is disposed on the polarizing film PF.

[0138] The substrate SUB includes a supporting substrate SSUB, a first substrate SUB1, a first buffer layer BF1, a second substrate SUB2, and a second buffer layer BF2 stacked in sequence. The first substrate SUB1 is disposed on the supporting substrate SSUB, the first buffer layer BF1 is disposed on the first substrate SUB1, the second substrate SUB2 is disposed on the first buffer layer BF1, and the second buffer layer BF2 is disposed on the second substrate SUB2.

[0139] The support substrate SSUB is a rigid substrate supporting the flexible first substrate SUB1 and the flexible second substrate SUB2. The support substrate SSUB is formed of glass or a plastic material such as polycarbonate (PC) or polyethylene terephthalate (PET).

[0140] The first substrate SUB1 and the second substrate SUB2 are formed of an organic material such as at least one of acrylic resin, epoxy resin, phenolic resin, polyamide resin, and polyimide resin, etc. The first substrate SUB1 and the second substrate SUB2 may be formed of the same organic material or different organic materials.

[0141] Each of the first buffer layer BF1 and the second buffer layer BF2 is formed of an inorganic material such as one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer. In another embodiment, each of the first buffer layer BF1 and the second buffer layer BF2 has a multilayer structure in which a plurality of layers including one or more of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked. The first buffer layer BF1 and the second buffer layer BF2 may be formed of the same inorganic material or different inorganic materials.

[0142] An active layer including a channel region TCH, a source region TS, and a drain region TD of a thin film transistor TFT is disposed on the second buffer layer BF2. The active layer includes at least one of polycrystalline silicon, single crystal silicon, low temperature polycrystalline silicon, amorphous silicon, and an oxide semiconductor material. When the active layer includes polycrystalline silicon or an oxide semiconductor material, the source region TS and the drain region TD of the active layer are conductive regions doped with ions.

[0143] The gate insulating layer 130 is formed on the second buffer layer BF2 and the active layer of the thin film transistor TFT. The gate insulating layer 130 is formed of an inorganic layer such as one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer.

[0144] The gate electrode TG of the thin film transistor TFT and the first capacitor electrode CAE1 are disposed on the gate insulating layer 130. The gate electrode TG of the thin film transistor TFT overlaps the channel region TCH in the third direction DR3 (Z-axis direction). The gate electrode TG and the first capacitor electrode CAE1 may be formed of a single layer or a plurality of layers including any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0145] The first interlayer insulating layer 141 is disposed on the gate insulating layer 130, the gate electrode TG, and the first capacitor electrode CAE1. The first interlayer insulating layer 141 is formed of an inorganic layer such as one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer. In other embodiments, the first interlayer insulating layer 141 includes a plurality of inorganic layers.

[0146] The second capacitor electrode CAE2 is disposed on the first interlayer insulating layer 141. The second capacitor electrode CAE2 overlaps the first capacitor electrode CAE1 in the third direction DR3 (Z-axis direction). Therefore, the capacitor Cst is formed by the first capacitor electrode CAE1, the second capacitor electrode CAE2, and an inorganic insulating dielectric layer used as a dielectric layer disposed therebetween. In an embodiment, the inorganic insulating dielectric layer is a part of the first interlayer insulating layer 141. The second capacitor electrode CAE2 may be formed by a single layer or a plurality of 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.

[0147] The second interlayer insulating layer 142 is disposed on the first interlayer insulating layer 141 and the second capacitor electrode CAE2. The second interlayer insulating layer 142 is formed of an inorganic layer such as one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer. In another embodiment, the second interlayer insulating layer 142 includes a plurality of inorganic layers.

[0148] The first connection electrode CE1 is disposed on the second interlayer insulating layer 142. The first connection electrode CE1 is connected to the drain region TD through a first contact hole CT1 penetrating the gate insulating layer 130, the first interlayer insulating layer 141, and the second interlayer insulating layer 142. The first connection electrode CE1 may be formed of a single layer or a plurality of layers including any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0149] The first organic layer 160 is disposed on the second interlayer insulating layer 142 and the first connection electrode CE1 to planarize a stepped portion formed by the thin film transistor TFT. The first organic layer 160 is formed of an organic layer such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, or polyimide resin.

[0150] The second connection electrode CE2 is disposed on the first organic layer 160. The second connection electrode CE2 is connected to the first connection electrode CE1 through a second contact hole CT2 penetrating the first organic layer 160. The second connection electrode CE2 may be formed of a single layer or a plurality of layers including any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0151] The second organic layer 180 is disposed on the first organic layer 160 and the second connection electrode CE2. The second organic layer 180 is formed of an organic layer such as one of acrylic resin, epoxy resin, phenol resin, polyamide resin, polyimide resin, and the like.

[0152] The light emitting element layer EML is disposed on the thin film transistor layer TFTL and includes a light emitting element LEL and a bank 190 .

[0153] Each of the light emitting elements LEL includes a pixel electrode 171, a light emitting layer 172, and a common electrode 173. Each of the emission regions is a region where the pixel electrode 171, the light emitting layer 172, and the common electrode 173 are sequentially stacked so that holes from the pixel electrode 171 and electrons from the common electrode 173 can combine with each other to emit light. For example, the pixel electrode 171 is an anode electrode, and the common electrode 173 is a cathode electrode.

[0154] The pixel electrode 171 is formed on the second organic layer 180. The pixel electrode 171 is connected to the second connection electrode CE2 through a third contact hole CT3 penetrating the second organic layer 180.

[0155] In a top emission structure that emits light from the light emitting layer 172 toward the common electrode 173, the pixel electrode 171 may be formed of a single layer of one of molybdenum (Mo), titanium (Ti), copper (Cu), and aluminum (Al), or may have a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, or a stacked structure of an APC alloy and ITO (ITO / APC / ITO) to increase reflectivity. The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0156] The bank 190 defines an emission area of ​​a display pixel. For example, the bank 190 exposes a partial area of ​​the pixel electrode 171 on the second organic layer 180. The bank 190 covers the edge of the pixel electrode 171. The bank 190 is disposed in the third contact hole CT3 penetrating the second organic layer 180. Therefore, the third contact hole CT3 penetrating the second organic layer 180 is filled with the bank 190. The bank 190 is formed of an organic layer such as at least one of an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, and a polyimide resin.

[0157] The spacer 191 is disposed on the bank 190. The spacer 191 supports a mask during a process of manufacturing the light emitting layer 172. The spacer 191 is formed of an organic layer such as at least one of acrylic resin, epoxy resin, phenol resin, polyamide resin, polyimide resin, and the like.

[0158] The light emitting layer 172 is formed on the pixel electrode 171. The light emitting layer 172 includes an organic material that emits light of a predetermined color. For example, the light emitting layer 172 includes a hole transport layer, an organic material layer, and an electron transport layer. The organic material layer includes a host and a dopant. The organic material layer includes a material that emits a predetermined light, and includes a phosphorescent material or a fluorescent material.

[0159] For example, the organic material layer of the light-emitting layer 172 of the first emission region emitting light of the first color is a phosphorescent material including a host material and a dopant, the host material including carbazole biphenyl (CBP) or mCP (1,3-bis(carbazole-9-yl)), and the dopant includes at least one of PIQIr(acac) (bis(1-phenylisoquinoline) iridium acetylacetonate), PQIr(acac) (bis(1-phenylquinoline) iridium acetylacetonate), PQIr(tris(1-phenylquinoline)iridium) and PtOEP (octaethylporphyrin platinum). In other embodiments, the organic material layer of the light-emitting layer 172 of the first emission region is a fluorescent material including PBD:Eu(DBM)3(Phen) or dinaphthylenediol, but the embodiments of the present disclosure are not necessarily limited to this.

[0160] The organic material layer of the light-emitting layer 172 in the second emission region emitting light of the second color is a phosphorescent material including a host material containing CBP or mCP and a dopant containing Ir(ppy)3 (tris(2-phenylpyridine))iridium. In other embodiments, the organic material layer of the light-emitting layer 172 in the second emission region emitting light of the second color is a fluorescent material including tris(8-hydroxyquinoline)aluminum (Alq3), but the embodiments of the present disclosure are not necessarily limited to this.

[0161] The organic material layer of the light emitting layer 172 in the third emission region emitting light of the third color is a phosphorescent material including a host material including CBP or mCP and a dopant including (4,6-F2ppy)2Irpic or L2BD111, but embodiments of the present disclosure are not necessarily limited thereto.

[0162] The common electrode 173 is formed on the light emitting layer 172. The common electrode 173 covers the light emitting layer 172. The common electrode 173 is a common layer commonly formed in the emission region. A capping layer may be formed on the common electrode 173.

[0163] In the top emission structure, the common electrode 173 is formed of a transparent conductive material (TCO) that can emit 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 common electrode 173 is formed of a semi-transmissive conductive material, light emitting efficiency is increased due to a microcavity effect.

[0164] The encapsulation layer ENC is formed on the light emitting element layer EML. The encapsulation layer ENC includes at least one inorganic layer that prevents oxygen or moisture from penetrating into the light emitting element layer EML. In addition, the encapsulation layer ENC includes at least one organic layer that protects the light emitting element layer EML from foreign matter such as dust. For example, the encapsulation layer ENC includes a first inorganic encapsulation layer TFE1, an organic encapsulation layer TFE2, and a second inorganic encapsulation layer TFE3.

[0165] The first inorganic encapsulation layer TFE1 is disposed on the common electrode 173, the organic encapsulation layer TFE2 is disposed on the first inorganic encapsulation layer TFE1, and the second inorganic encapsulation layer TFE3 is disposed on the organic encapsulation layer TFE2. The first inorganic encapsulation layer TFE1 and the second inorganic encapsulation layer TFE3 have a multilayer structure in which one or more inorganic layers of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked. The organic encapsulation layer TFE2 includes an organic material such as at least one of an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, and a polyimide resin.

[0166] The sensor electrode layer SENL is disposed on the encapsulation layer ENC. The sensor electrode layer SENL includes a third buffer layer BF3, a first connection portion BE1, a first sensor insulating layer TINS1, a second sensor insulating layer TINS2, and sensor electrodes TE and RE.

[0167] The third buffer layer BF3 is disposed on the encapsulation layer ENC. The third buffer layer BF3 has an insulating function and an optical function. The third buffer layer BF3 includes at least one inorganic layer. For example, the third buffer layer BF3 has a multilayer structure in which one or more inorganic layers of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked. The third buffer layer BF3 can be formed by a lamination process using a flexible material, a spin coating process using a solution-based material, a slit die coating process, and a deposition process. In an embodiment, the third buffer layer BF3 is omitted.

[0168] The first connection portion BE1 is disposed on the third buffer layer BF3. The first connection portion BE1 may be formed of a single layer including one of molybdenum (Mo), titanium (Ti), copper (Cu), and aluminum (Al), or may be formed of a stack structure of aluminum and titanium (Ti / Al / Ti), a stack structure of aluminum and indium tin oxide (ITO) (ITO / Al / ITO), an Ag-Pd-Cu (APC) alloy, or a stack structure of an APC alloy and ITO (ITO / APC / ITO).

[0169] The first sensor insulating layer TINS1 is disposed on the first connection portion BE1. The first sensor insulating layer TINS1 has an insulating function and an optical function. The first sensor insulating layer TINS1 is formed of an inorganic layer such as one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer. The first sensor insulating layer TINS1 may be formed by one of a lamination process using a flexible material, a spin coating process using a solution type material, a slit die coating process, and a deposition process.

[0170] The sensor electrode includes a driving electrode TE and a sensing electrode RE, and is disposed on the first sensor insulating layer TINS1. In addition, a dummy pattern is disposed on the first sensor insulating layer TINS1. The driving electrode TE, the sensing electrode RE, and the dummy pattern do not overlap with the emission region. The driving electrode TE, the sensing electrode RE, and the dummy pattern may be formed of a single layer including one of molybdenum (Mo), titanium (Ti), copper (Cu), and aluminum (Al), or may have a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and indium tin oxide (ITO) (ITO / Al / ITO), an Ag-Pd-Cu (APC) alloy, or a stacked structure of an APC alloy and ITO (ITO / APC / ITO).

[0171] The second sensor insulating layer TINS2 is disposed on the first sensor insulating layer TINS1, the driving electrode TE, the sensing electrode RE, and the dummy pattern (not shown). The second sensor insulating layer TINS2 has an insulating function and an optical function. The second sensor insulating layer TINS2 includes at least one of an inorganic layer and an organic layer. The inorganic layer is one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer. The organic layer includes at least one of an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, and a polyimide resin. The second sensor insulating layer TINS2 may be formed by one of a lamination process using a flexible material, a spin coating process using a solution-type material, a slit die coating process, and a deposition process.

[0172] Panel cover PB (see Figure 3 The heat dissipation layer HSL is provided on the bottom surface of the support substrate SSUB of the substrate SUB. The heat dissipation layer HSL is formed of a metal thin film containing at least one of, for example, copper, nickel, ferrite, and silver, which are heat conductive materials that can shield electromagnetic waves.

[0173] Fig.17 2 is a cross-sectional view of a boundary between the antenna area AA and the non-display area NDA adjacent thereto in the display device 10 according to the embodiment.

[0174] refer to Fig.17 In an embodiment, dams DAM1 and DAM2 surrounding the display area DA are disposed in the non-display area NDA of the display panel 300. The dam includes a first dam DAM1 and a second dam DAM2 disposed outward from the first dam DAM1, but embodiments of the present disclosure are not necessarily limited thereto. The first dam DAM1 and the second dam DAM2 are disposed on the second interlayer insulating layer 142.

[0175] The first dam DAM1 includes a first sub-dam SDAM1 formed of the same material as the first organic layer 160 , a second sub-dam SDAM2 formed of the same material as the second organic layer 180 , and a third sub-dam SDAM3 formed of the same material as the bank 190 .

[0176] The second dam DAM2 includes a first sub-dam SDAM1, a second sub-dam SDAM2, a third sub-dam SDAM3, and a fourth sub-dam SDAM4 stacked in sequence. The first sub-dam SDAM1 is formed of the same material as the first organic layer 160, and the second sub-dam SDAM2 is formed of the same material as the second organic layer 180. The third sub-dam SDAM3 is formed of the same material as the bank 190, and the fourth sub-dam SDAM4 is formed of the same material as the spacer 191 (see Fig.16 ).

[0177] exist Fig.17 In the embodiment, the antenna electrode AE ​​refers to the combination of Figures 9 to 12 The antenna ANT of the antenna array ANTA is described. For example, Fig.17 The antenna electrode AE ​​includes at least one of a first antenna electrode AE1, a second antenna electrode AE2, and a third antenna electrode AE3 of a specific antenna ANT in the antenna array ANTA.

[0178] In addition, combined Figures 9 to 12 The shielding electrodes 911, 912, 913, 914 and 915 of the shielding member 910 are formed on the Fig.17 The antenna electrodes AE are shown on the same layer.

[0179] refer to Fig.17 In an embodiment, the antenna electrode AE ​​includes the first antenna electrode layer AEL1 to the eighth antenna electrode layer AEL8. However, the embodiments of the present disclosure are not necessarily limited thereto, and in other embodiments, the antenna electrode AE ​​includes only some of the antenna electrode layers AEL1 to AEL8.

[0180] The first antenna electrode layer AEL1 is formed by connecting to the first capacitor electrode CAE1 (see Fig.16 ) and thin film transistors TFT (see Fig.16 ) of the gate electrode TG (see Fig.16 ) and is made of the same material as the first capacitor electrode CAE1 (see Fig.16 ) and thin film transistors TFT (see Fig.16 ) of the gate electrode TG (see Fig.16 ) are formed by the same process.

[0181] The second antenna electrode layer AEL2 is disposed on the portion exposed without being covered by the first interlayer insulating layer 141 (see Fig.16 ) is formed on the first antenna electrode layer AEL1 covered by the second capacitor electrode CAE2 (see Fig.16 ) and is made of the same material as the second capacitor electrode CAE2 (see Fig.16 ) are formed by the same process.

[0182] The third antenna electrode layer AEL3 is disposed on the portion exposed without being covered by the second interlayer insulating layer 142 (see Fig.16 ) is formed on the second antenna electrode layer AEL2 covered by the first connection electrode CE1 (see Fig.16 ) and is made of the same material as the first connection electrode CE1 (see Fig.16 ) are formed by the same process.

[0183] The fourth antenna electrode layer AEL4 is disposed on the third antenna electrode layer AEL3. The fourth antenna electrode layer AEL4 is connected to the second connection electrode CE2 (see Fig.16 ) and is made of the same material as the second connection electrode CE2 (see Fig.16 ) are formed by the same process.

[0184] The fifth antenna electrode layer AEL5 is disposed on the fourth antenna electrode layer AEL4. The fifth antenna electrode layer AEL5 is formed by connecting to the pixel electrode 171 (see Fig.16 ) and is made of the same material as the pixel electrode 171 (see Fig.16 ) are formed by the same process.

[0185] The sixth antenna electrode layer AEL6 is disposed on the fifth antenna electrode layer AEL5. The sixth antenna electrode layer AEL6 is formed by connecting to the common electrode 173 (see Fig.16 ) and is made of the same material as the common electrode 173 (see Fig.16 ) are formed by the same process.

[0186] The seventh antenna electrode layer AEL7 is disposed on the sixth antenna electrode layer AEL6. The seventh antenna electrode layer AEL7 is connected to the sensor electrode layer SENL by a first connection portion BE1 (see Fig.16 ) and is connected to the sensor electrode layer SENL through the first connecting portion BE1 (see Fig.16 ) are formed by the same process.

[0187] The eighth antenna electrode layer AEL8 is disposed on the seventh antenna electrode layer AEL7. The eighth antenna electrode layer AEL8 is formed by the drive electrode TE (see Fig.16 ), sensing electrode RE (see Fig.16 ) and / or the dummy pattern, and is made of the same material as the sensor electrode layer SENL through the driving electrode TE (see Fig.16 ), sensing electrode RE (see Fig.16 ) and / or dummy patterns are formed by the same process.

[0188] The through hole (or contact hole) CT penetrates the first substrate SUB1 , the first buffer layer BF1 , the second substrate SUB2 , and the second buffer layer BF2 of the substrate SUB. In addition, the through hole CT penetrates the gate insulating layer 130 .

[0189] The antenna electrode AE ​​is in contact with the feed line FL through the through hole CT.

[0190] The antenna pad APD is electrically connected to the feed line FL and is disposed at the end of the feed line FL. The feed line FL and the antenna pad APD are disposed on the bottom surface of the first substrate SUB1 of the substrate SUB. Since the antenna area AA is bent and disposed below the main area MA (see Figure 4 ), so the supporting substrate SSUB of the substrate SUB is removed from the antenna area AA where the feeding line FL is provided.

[0191] The antenna pad APD is connected to the antenna circuit board 340 through an anisotropic conductive film including a conductive ball CB and a conductive adhesive member CAM such as an anisotropic conductive adhesive.

[0192] Fig.18 1 is a cross-sectional view of an example in which a transparent dielectric substrate 1800 such as a transparent dielectric layer including the antenna ANT of the display device 10 is attached on the display panel 300 .

[0193] refer to Fig.18 In an embodiment, a transparent dielectric substrate 1800 including an antenna array ANTA is attached to an encapsulation layer ENC of a display panel 300. The transparent dielectric substrate 1800 includes a flexible transparent dielectric layer, an antenna layer ANTL, and a ground layer GNDL, the antenna layer ANTL being disposed on a top surface of the flexible transparent dielectric layer, and the ground layer GNDL being disposed on a rear surface of the flexible transparent dielectric layer.

[0194] According to an embodiment, the transparent dielectric substrate 1800 includes a stacked structure formed by a FPCB manufacturing process. Figures 9 to 12 The antenna ANT, the shielding member 910, and the feed line FL of the described antenna array ANTA are disposed on the top surface of the transparent dielectric substrate 1800. The ground layer GNDL including the ground line GND is disposed on the bottom surface of the transparent dielectric substrate 1800.

[0195] The end of the transparent dielectric substrate 1800 extends to the outside of the display panel 300. For example, the transparent dielectric substrate 1800 includes a first portion overlapping the display panel 300 and a second portion extending from the end of the first portion (for example, to the left in the illustrated example) out of the display panel 300 and not overlapping the display panel 300. The antenna ANT of the antenna array ANTA and the shielding member 910 are disposed at the first portion of the transparent dielectric substrate 1800 and correspond to the dead zone area DS of the display panel 300. A feed line FL electrically connected to the antenna electrode and a ground layer GNDL overlapping the feed line FL are disposed on the second portion of the transparent dielectric substrate 1800.

[0196] A second portion of the transparent dielectric substrate 1800 , that is, a portion of the transparent dielectric substrate 1800 on which the feeding line FL of the antenna layer ANTL and the ground layer GNDL are formed, may be bent, and the bent second portion of the transparent dielectric substrate 1800 may be disposed under the display panel 300 .

[0197] At the end of the detailed description, those skilled in the art will appreciate that many changes and modifications may be made to the disclosed embodiments without departing substantially from the principles of the present disclosure. Therefore, the disclosed embodiments are used in a general and descriptive sense only and not for the purpose of limitation.

Claims

1. A display device, comprising: The display panel includes: a display area displaying an image; a non-display area provided at an edge of the display area; and an antenna area protruding from a portion of the non-display area in a first direction; and an antenna driving substrate electrically connected to the antenna array via an antenna pad disposed adjacent to an end of the antenna region, wherein the antenna array is disposed at a boundary between the antenna area and a portion of the non-display area adjacent to the antenna area, Wherein, the antenna array comprises: a plurality of antennas that generate polarized waves in a second direction perpendicular to the first direction and are arranged at intervals along the second direction; and The shielding member is disposed between adjacent antennas and connected to the ground.

2. The display device according to claim 1, wherein: The shield member includes a shield electrode between the adjacent antennas, the shield electrode blocking a surface wave formed along the second direction.

3. The display device according to claim 2, wherein: The shielding member comprises: a first shielding electrode connected to the ground line and extending in the first direction; a second shielding electrode extending from an end of the first shielding electrode in the second direction; and The third shielding electrode extends from the end of the first shielding electrode in a third direction opposite to the second direction.

4. The display device according to claim 3, wherein: The second shielding electrode and the third shielding electrode are disposed symmetrically with respect to the first shielding electrode.

5. The display device according to claim 3, wherein: The second shielding electrode and the third shielding electrode are aligned on an imaginary straight line along the second direction or the third direction.

6. The display device according to claim 3, wherein: The shielding member further comprises: a fourth shielding electrode extending from an end of the second shielding electrode in the first direction and parallel to the first shielding electrode; and A fifth shielding electrode extends from an end of the third shielding electrode in the first direction and is parallel to the first shielding electrode.

7. The display device according to claim 6, wherein: The length of the fourth shielding electrode and the length of the fifth shielding electrode are equal to each other.

8. The display device according to claim 7, wherein: The length of the fourth shielding electrode or the fifth shielding electrode is smaller than the length of the first shielding electrode.

9. The display device according to claim 6, wherein: The antenna array is disposed on the same layer as at least one of electrodes of a thin film transistor disposed in the display area.

10. The display device according to claim 6, in, The antenna array is included in a transparent dielectric substrate disposed on an encapsulation layer of the display panel, Wherein, the transparent dielectric substrate comprises: a flexible transparent dielectric layer; an antenna layer disposed on a top surface of the transparent dielectric layer and comprising the antenna array; and The ground layer is disposed on the rear surface of the transparent dielectric layer and includes the ground line.

11. The display device according to claim 1, wherein: Each of the plurality of antennas comprises: a first antenna electrode connected to the feed line and extending in the first direction; a second antenna electrode branched from an end of the first antenna electrode in the second direction and connected to the ground line; and A third antenna electrode branches from the end of the first antenna electrode in a third direction opposite to the second direction and is connected to the ground line.

12. The display device according to claim 11, wherein: The length of the second antenna electrode in the second direction is greater than the length of the third antenna electrode in the third direction.

13. The display device according to claim 11, wherein: Each of the plurality of antennas includes at least one slot.

14. The display device according to claim 1, further comprising: an auxiliary shielding member disposed on each of two sides of the antenna array, The structure of the auxiliary shielding member is the same as that of the shielding member.

15. The display device according to claim 1, wherein: At least a portion of the antenna region is bent and parallel to the antenna array below the display panel.

16. Mobile electronic devices, including: The display panel includes: a display area displaying an image; a non-display area provided at an edge of the display area; and an antenna area protruding from a portion of the non-display area in a first direction; and an antenna driving substrate electrically connected to the antenna array via an antenna pad disposed adjacent to an end of the antenna region, Wherein, the antenna array comprises: a plurality of antennas that generate polarized waves in a second direction perpendicular to the first direction and are arranged at intervals along the second direction; and a shielding member disposed between adjacent antennas and connected to a ground line, The shielding member includes a shielding electrode, and the shielding electrode blocks a surface wave formed along the second direction between the adjacent antennas.

17. The mobile electronic device according to claim 16, wherein: The antenna array is disposed at a boundary between the antenna region and a portion of the non-display region adjacent to the antenna region.

18. The mobile electronic device according to claim 16, wherein: The shielding member comprises: a first shielding electrode connected to the ground line and extending in the first direction; a second shielding electrode extending from an end of the first shielding electrode in the second direction; and The third shielding electrode extends from the end of the first shielding electrode in a third direction opposite to the second direction.

19. The mobile electronic device according to claim 18, wherein: The second shielding electrode and the third shielding electrode are disposed symmetrically with respect to the first shielding electrode.

20. The mobile electronic device according to claim 18, wherein: The second shielding electrode and the third shielding electrode are aligned on an imaginary straight line along the second direction or the third direction.

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