Display devices

Abstract

This invention provides a display device capable of improving touch sensitivity at the edge portions of a screen. The display device according to one or more embodiments of the invention includes: a display panel comprising a plurality of pixel driving circuits; a touch panel disposed on the display panel; and touch auxiliary lines disposed on the display panel or the touch panel, wherein the touch panel includes: first to nth touch driving lines, where n is a natural number greater than or equal to 4; and first to mth touch sensing lines, the touch sensing lines being configured to form mutual capacitance with adjacent touch driving lines among the first to nth touch driving lines, where m is a natural number greater than or equal to 4, wherein the touch auxiliary lines are spaced apart from the ends of each of the first to nth touch driving lines and are configured to form mutual capacitance with at least some of the first to mth touch sensing lines.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit and priority of Korean Patent Application No. 10-2024-0170704, filed on November 26, 2024, which is incorporated herein by reference in its entirety for all purposes, as if fully set forth herein. Technical Field

[0003] This invention relates to a display device. Background Technology

[0004] Display devices are used in a variety of electronic devices, such as televisions (TVs), mobile phones, laptops, and tablets.

[0005] Display devices include self-emissive organic light-emitting display devices and liquid crystal display devices that require a separate light source.

[0006] Recently, display devices that include light-emitting devices (LEDs) have attracted attention as the next generation of display devices. These LEDs are made of inorganic materials rather than organic materials. Therefore, compared to liquid crystal displays (LCDs) or organic light-emitting displays (OLEDs), display devices that include LEDs have faster illumination speeds and superior luminous efficiency, and can display images with high brightness.

[0007] To facilitate user input, electronic devices using display devices as screens provide touchscreen-type user interfaces. Display devices capable of touch interface processing are being developed to offer a wider range of functions. For example, display devices incorporating touch panels are becoming increasingly common, capable of both touch sensing based on a stylus (or pen) and finger touch sensing. Summary of the Invention

[0008] The inventors of this invention recognized that in display devices including touch electrode layers of the mutual capacitance type, touch sensitivity (or touch performance) deteriorates at the screen edges, and extensive research and experiments have been conducted to improve touch sensitivity at the screen edges. Based on this extensive research and experimentation, the inventors of this invention have invented a new display device capable of improving touch sensitivity at the screen edges.

[0009] One aspect of the present invention aims to provide a display device capable of improving touch sensitivity at the edge portions of a screen.

[0010] One aspect of the present invention aims to provide a display device that simplifies the structure and enables low-power driving.

[0011] Additional features, advantages, and aspects of the invention are set forth in part herein and will also be apparent from the disclosure of the invention, or may be learned by practicing the inventive concept provided herein. Other features, advantages, and aspects of the invention may be realized and obtained from the description provided herein or its derivatives, the claims, and the drawings.

[0012] To achieve these and other advantages and aspects of the present invention, as realized and broadly described herein, in one or more aspects, a display device according to one or more embodiments of the present invention includes: a display panel including a plurality of pixel driving circuits; a touch panel disposed on the display panel; and touch auxiliary lines disposed on the display panel or the touch panel. The touch panel includes: first to nth (n is a natural number greater than or equal to 4) touch driving lines; and first to mth (m is a natural number greater than or equal to 4) touch sensing lines, the touch sensing lines being configured to form mutual capacitance with adjacent touch driving lines among the first to nth touch driving lines. The touch auxiliary lines are spaced apart from the ends of each of the first to nth touch driving lines and are configured to form mutual capacitance with at least some of the first to mth touch sensing lines.

[0013] Details of other exemplary embodiments will be included in the detailed description and drawings of the invention.

[0014] In a display device according to one or more embodiments of the present invention, touch sensitivity at the edge portions of the screen can be improved.

[0015] In a display device according to one or more embodiments of the present invention, power consumption can be reduced, thereby enabling ESG (environmental, social and governance) practices.

[0016] According to one or more embodiments of the present invention, instead of forming pixel circuits directly on the substrate for driving light-emitting devices configured in each of a plurality of sub-pixels, the structure of the display device can be simplified, and efficient driving and low-power driving can be achieved by mounting a pixel driving circuit (or pixel driving integrated circuit) in which the pixel circuits are integrated on the substrate.

[0017] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon studying the following figures and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, fall within the scope of the invention, and are protected by the appended claims. Nothing in this section should be construed as limiting the scope of the claims. Further aspects and advantages are discussed below in conjunction with various aspects of the invention.

[0018] It should be understood that the foregoing description and the following description of the present invention are exemplary and explanatory, and are intended to provide further explanation of the claimed invention. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of the invention, illustrate various aspects and embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 This is an exploded perspective view showing a display device according to an embodiment of the present invention.

[0021] Figure 2 This is a plan view of a display device according to an embodiment of the present invention.

[0022] Figure 3 This is an enlarged view of a display device according to an embodiment of the present invention.

[0023] Figure 4 This is a diagram illustrating the circuit structure according to an embodiment of the present invention.

[0024] Figures 5 to 7 This is a plan view of a display device according to an embodiment of the present invention.

[0025] Figure 8 It is along Figure 2 The cross-sectional view shown is taken by line I-I'.

[0026] Figure 9 This is a cross-sectional view of the first light-emitting device according to an embodiment of the present invention.

[0027] Figure 10 This is a diagram illustrating the driving timing of the display panel and touch panel according to an embodiment of the present invention.

[0028] Figure 11 This is a plan view showing the electrode structure of a touch panel according to an embodiment of the present invention.

[0029] Figure 12 yes Figure 11 An enlarged view of "A" shown.

[0030] Figure 13 It is along Figure 12 The cross-sectional view taken from line II-II' is shown.

[0031] Figure 14 This is a diagram showing the output signal of a touch driving circuit according to an embodiment of the present invention.

[0032] Figure 15 It is shown in Figure 11 and Figure 12 The diagram shows the capacitance formed on the edge sensing line of the touch panel.

[0033] Figure 16 It is shown in Figure 11 and Figure 12 The diagram shows the capacitance formed on the center sensing line of the touch panel.

[0034] Figure 17 This is a diagram illustrating the output signal of a touch driving circuit according to another embodiment of the present invention.

[0035] Figure 18 This is a diagram illustrating the touch panel of a display device according to another embodiment of the present invention.

[0036] Figure 19 This is a diagram illustrating a second electrode and a touch panel in a display device according to another embodiment of the present invention.

[0037] Figure 20 yes Figure 19 An enlarged view of the "B" shown.

[0038] Figure 21 It is along Figure 20 The cross-sectional view taken from line III-III' is shown.

[0039] Figure 22 This is a diagram illustrating the touch panel of a display device according to another embodiment of the present invention.

[0040] Figures 23 to 26 This is a diagram illustrating a device using a display device according to an embodiment of the present invention.

[0041] Throughout the accompanying drawings and detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For purposes of clarity, illustrative purposes, and convenience, the dimensions, lengths, and thicknesses of layers, regions, and elements, and their depictions, may be exaggerated. Detailed Implementation

[0042] The advantages and features of the present invention, as well as its implementation methods, will become apparent from the various aspects described with reference to the accompanying drawings. However, the present invention may be implemented in different forms and should not be construed as limited to the exemplary aspects set forth herein. More precisely, these exemplary aspects are examples provided to make the disclosure of the present invention thorough and complete, to assist those skilled in the art in understanding the inventive concept, and not to limit the scope of protection of the present invention.

[0043] The shapes, dimensions, ratios, angles, and quantities disclosed in the accompanying drawings used to describe embodiments of the invention are merely examples, and therefore the invention is not limited to the details shown. Throughout the specification, similar reference numerals denote similar elements. In the following description, detailed descriptions of related known functions or constructions will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the essential points of the invention. Where terms such as "comprising," "having," or "including" are used as described in this specification, additional parts may be added unless "only" is used. Singular terms may include plural forms unless otherwise specified.

[0044] When interpreting elements, even if there is no separate explicit description, it is interpreted as including a range of errors.

[0045] When describing positional relationships, for example, when the positional relationship between two parts is described as "above", "over", "below", "next", "adjacent", etc., one or more other parts may be located between the two parts, unless more restrictive terms such as "exactly", "directly", or "immediately next" are used.

[0046] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” “before,” etc., it may include discontinuous or non-sequential situations, so one or more other events may occur in between, unless more restrictive terms such as “immediately after” or “directly” are used.

[0047] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms to, for example, any particular order, priority, or number of elements. These terms are only used to distinguish one element from another. Therefore, within the scope of the technical concept of the present invention, the first element described below can be understood as the second element.

[0048] In describing the elements of the present invention, terms such as “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to identify the corresponding element from other elements and are not used to limit the nature, basis, order, or number of elements.

[0049] For any statement that an element is “connected,” “joined,” or “attached” to another element, the element may be directly connected, joined, or in contact with the other element, or indirectly connected, joined, or attached to the other element through one or more intermediate elements inserted between these elements, unless otherwise specified.

[0050] The statement that one element "overlaps" with another element means that the element can not only directly contact or overlap with the other element, but also indirectly overlap with the other element when one or more intermediate elements are inserted between these elements, unless otherwise specified.

[0051] The term “at least one” should be understood to include any and all combinations of one or more of the related listed items. For example, “at least one of the first element, the second element, and the third element” means a combination of all three listed elements, a combination of any two of the three elements, and each individual element, namely, the first element, the second element, or the third element.

[0052] The terms “first direction,” “second direction,” “third direction,” “X-axis direction,” “Y-axis direction,” and “Z-axis direction” should not be interpreted solely by their geometric relationship of being perpendicular to each other, but rather by having a wider range of directions within the scope of the elements of the invention being functionally effective.

[0053] As will be fully understood by those skilled in the art, the features of the various embodiments of the present invention may be partially or entirely combined with each other, and may be technically interoperable and driven in various ways. Embodiments of the present invention may be implemented independently of each other, or may be implemented together in an interdependent relationship.

[0054] In the following, exemplary embodiments of the display device according to the present invention will be described in detail with reference to the accompanying drawings. For ease of description, the scale of each element shown in the drawings differs from the actual scale, and therefore the invention is not limited to the scale shown in the drawings.

[0055] Figure 1 This is an exploded perspective view showing a display device according to an embodiment of the present invention.

[0056] Reference Figure 1 The display device 1000 according to an embodiment of the present invention may include a display panel 100, a touch panel 200, and touch auxiliary lines 400.

[0057] The display panel 100 can be configured to display information, video, and / or images provided to a user on the screen. For example, the display panel 100 can be a light-emitting display panel that includes a plurality of pixels having light-emitting devices.

[0058] Touch panel 200 may be configured to be perpendicularly overlapped with display panel 100. Touch panel 200 may be configured to sense user touch on display panel 100. For example, touch panel 200 may be configured to sense user touch via stylus or finger.

[0059] A touch panel 200 according to one embodiment of the present invention may include a touch electrode layer, wherein first to nth (n is a natural number greater than or equal to 4) touch driving lines (or multiple first touch lines) and first to mth (m is a natural number greater than or equal to 4) touch sensing lines (or multiple second touch lines) are configured to intersect each other. The touch sensing lines may be configured to form mutual capacitance with adjacent touch driving lines among the first to nth touch driving lines. For example, the touch panel 200 may be configured to sense changes in the mutual capacitance between the touch driving lines and the touch sensing lines based on user touch. For example, the touch panel 200 (or the touch electrode layer) may include electrode structures corresponding to the mutual capacitance type.

[0060] The touch guide line 400 can be configured to improve touch sensitivity (or touch performance) at the edges of the screen. For example, the touch guide line 400 can be set (or configured) at the display panel 100 or the touch panel 200.

[0061] According to one embodiment of the present invention, the touch auxiliary line 400 may be spaced apart from the ends of each of the first to nth touch driving lines, and may be configured to form mutual capacitance with at least some of the first to mth touch sensing lines. For example, the touch auxiliary line 400 may be configured to increase or enhance the capacitance of the first and mth touch sensing lines disposed (or configured) at the edge portion of the screen. For example, the touch auxiliary line 400 may be configured to increase the total capacitance of each of the first and mth touch sensing lines. Therefore, since the capacitance between each of the first and mth touch sensing lines disposed at the edge portion of the screen and the touch auxiliary line 400 is increased (or enhanced), the touch sensitivity (or touch performance) at the edge portion of the screen can be improved.

[0062] The display device 1000 according to an embodiment of the present invention may further include a cover member 120, a support substrate 190, and a driving circuit section 300.

[0063] Cover member 120 may be disposed above display panel 100. Cover member 120 may be a component that protects display panel 100. Cover member 120 may be made of transparent material. For example, cover member 120 may be a cover window or a cover glass.

[0064] A support substrate 190 may be disposed on the rear surface of the display panel 100. The support substrate 190 may be configured to enhance the rigidity of the display panel 100. For example, the support substrate 190 may be made of plastic or metal. The support substrate 190 may be a backplate.

[0065] A portion of the display panel 100 may be bent to surround the side surface (or lateral surface) of the support substrate 190, and may be disposed on the rear surface of the support substrate 190.

[0066] The driving circuit section (or display driving circuit section) 300 may be configured to be electrically connected to the display panel 100. The driving circuit section 300 may be configured to generate signals required for displaying (or implementing) an image on the display panel 100 and to provide the signals to the display panel 100. The driving circuit section 300 may include a flexible circuit board 310 and a printed circuit board 330.

[0067] The flexible circuit board 310 and the printed circuit board 330 may be disposed on the lower part of the display panel 100. The flexible circuit board 310 and the printed circuit board 330 may be disposed on at least one edge portion of the display panel 100. One side of the flexible circuit board 310 may be attached to the display panel 100, and the other side of the flexible circuit board 310 may be attached to the printed circuit board 330. The flexible circuit board 310 may be a flexible film.

[0068] The flexible circuit board 310 and the printed circuit board 330 can be disposed on the rear surface of the support substrate 190. The support substrate 190 can be disposed between the display panel 100 and the printed circuit board 330.

[0069] The printed circuit board 330 may include at least one hole 331, but is not limited thereto. Internal components may be disposed in the area corresponding to the at least one hole 331 to sense ambient light or temperature, etc., which can be provided to multiple sensors. For example, the internal components may include an ambient light sensor or a temperature sensor, etc., but are not limited thereto. For example, the at least one hole 331 may be a transmission hole, etc., but is not limited thereto.

[0070] The driving circuit section 300 is electrically connected to the touch panel 200. The driving circuit section 300 is electrically connected to the first to nth touch driving lines, the first to mth touch sensing lines, and the touch auxiliary line 400. The driving circuit section 300 can be configured to provide a touch driving signal to each of the first to nth touch driving lines, and to provide an auxiliary driving signal synchronized with the touch driving signal to the touch auxiliary line 400. The driving circuit section 300 can also be configured to sense the capacitance change of each of the first to mth touch sensing lines, generate touch coordinate data corresponding to the user's touch position, and provide the touch coordinate data to the host control unit.

[0071] The display device 1000 according to an embodiment of the present invention may further include a polarizing layer 180 and an adhesive layer 185.

[0072] A polarizing layer 180 may be disposed above the display panel 100. The polarizing layer 180 may be disposed (or inserted) between the display panel 100 and the cover member 120. For example, the polarizing layer 180 may be disposed above the touch panel 200. The polarizing layer 180 may be disposed (or inserted) between the touch panel 200 and the cover member 120. The polarizing layer 180 may be configured to prevent or reduce light generated from an external light source from entering the interior of the display panel 100 and affecting light-emitting devices, etc.

[0073] The adhesive layer 185 can attach the cover member 120 to the display panel 100. The adhesive layer 185 can be disposed (or inserted) between the polarizing layer 180 and the cover member 120, and can attach the cover member 120 to the polarizing layer 180. The adhesive layer 185 may include optically transparent adhesives, optically transparent resins, or pressure-sensitive adhesives, etc.

[0074] According to another embodiment of the invention, the touch panel 200 can be inserted or disposed between the display panel 100 and the cover member 120. For example, the touch panel 200 can be inserted or disposed between the cover member 120 and the polarizing layer 180. The touch panel 200 can be connected or attached to the rear surface of the cover member 120 by a transparent adhesive member.

[0075] Figure 2 This is a plan view of a display device according to an embodiment of the present invention. Figure 3 This is an enlarged view of a display device according to an embodiment of the present invention.

[0076] Reference Figure 2 and Figure 3 The display device 1000 may include a display panel 100, a flexible circuit board 310, and a printed circuit board 330.

[0077] The display panel 100 may include a substrate 110. The substrate 110 may be a component configured to support other components of the display device 1000. The substrate 110 may be made of an insulating material. For example, the substrate 110 may be made of glass or resin. In addition, the substrate 110 may be made of a flexible material. For example, the substrate 110 may be made of a flexible plastic material such as polyimide, but is not limited thereto.

[0078] The display panel 100 may include a display area AA and a non-display area NA. For example, the substrate 110 may include a display area AA and a non-display area NA. The display area AA and the non-display area NA are not limited to the substrate 110, but can be described throughout the display device 1000.

[0079] The display area AA can be an area (or screen) for displaying images. The display area AA can include multiple pixels PX. Each of the multiple pixels PX can be composed of multiple subpixels. For example, each of the multiple pixels PX can include multiple subpixels. Each of the multiple subpixels can include multiple light-emitting devices. Depending on the type of display device 1000, the multiple light-emitting devices can be configured differently. For example, when the display device 1000 is an inorganic light-emitting display device, the light-emitting devices can be LEDs (light-emitting diodes), micro LEDs (micro-light-emitting diodes), or mini LEDs (mini-light-emitting diodes), but are not limited to these.

[0080] The display area AA can be configured into various shapes depending on the design of the display device 1000. For example, the display area AA can be configured as a rectangular shape with four corners formed in a rounded shape, but is not limited to this. As another example, the display area AA can be configured as a rectangular shape with four corners formed in a right-angled shape or a circular shape, etc., but is not limited to this.

[0081] Reference Figure 3 Multiple pixel driving circuits (PDs) can be disposed at the display area AA. The multiple pixel driving circuits (PDs) can be circuits for driving light-emitting devices of multiple sub-pixels. Each of the multiple pixel driving circuits (PDs) includes multiple transistors with driving transistors and storage capacitors, etc., and can control the light-emitting operation of the multiple light-emitting devices by providing control signals, power supplies, and driving currents to the light-emitting devices of the multiple sub-pixels. For example, each of the multiple pixel driving circuits (PDs) can be electrically connected to power supply wiring disposed (or configured) at the display area AA and signal wiring for controlling the light-emitting on / off and / or light-emitting time of the light-emitting devices. For example, each of the multiple pixel driving circuits (PDs) can be a microchip, pixel driving chip, or chipset, and can be a semiconductor packaged device with a fine dimension including multiple transistors and storage capacitors. For example, each of the multiple pixel driving circuits (PDs) can be a driving driver manufactured on a semiconductor substrate using a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufacturing process, but is not limited thereto. The driving driver includes multiple pixel driving circuits (PDs) and can drive multiple sub-pixels.

[0082] The non-display area NA can be the area surrounding the display area AA. The non-display area NA can be an area where no image is displayed. The non-display area NA can include various wiring and driving circuits for driving the multiple pixels PX set (or configured) at the display area AA. For example, various wiring and driving circuits can be installed at the non-display area NA, and pad portions PADs connected to integrated circuits and printed circuit boards, etc., can be located at the non-display area NA, but are not limited thereto.

[0083] According to an embodiment of the present invention, the driving circuit may include a driving integrated circuit (or display driving circuit) 311. For example, the driving circuit may be a data driving circuit and / or a gate driving circuit, but is not limited thereto. Lines providing control signals for controlling the driving circuit may be provided at the non-display area NA. For example, the control signals may include various timing signals, including clock signals, input data enable signals, and synchronization signals, but are not limited thereto. The control signals may be received via pads (PADs). For example, connection lines LL for transmitting signals may be provided at the non-display area NA. For example, the pads (PADs) may be electrically connected to the driving circuit of the driving circuit section 300.

[0084] According to embodiments of the present invention, the non-display area NA may include a first non-display area NA1, a curved area BA, and a second non-display area NA2. For example, the first non-display area NA1 may be a region surrounding at least a portion of the display area AA. The curved area BA may be a region extending from at least one of the multiple sides of the first non-display area NA1, and may be a flexible region. The second non-display area NA2 may be a region extending from the curved area BA, and may have pad portions PAD disposed therein. For example, the curved area BA may be in a curved state, and the remaining area of ​​the substrate 110 other than the curved area BA may be in a flat state. In this case, when the curved area BA is bent, the second non-display area NA2 may be located on the rear surface of the display area AA, but is not limited thereto.

[0085] According to an embodiment of the present invention, multiple connection lines LL can be disposed at the non-display area NA. The multiple connection lines LL can be lines that transmit various signals from one or more flexible circuit boards (or flexible films) 310 and printed circuit boards 330 to the display area AA. The multiple connection lines LL can extend from multiple pad electrodes PE of the second non-display area NA2 toward the bending area BA and the first non-display area NA1, and can be electrically connected to multiple drive lines VL of the display area AA. Multiple pixel driving circuits PD can be driven by receiving signals from one or more flexible circuit boards (or flexible films) 310 and printed circuit boards 330 through the drive lines VL of the display area AA and the connection lines LL of the non-display area NA.

[0086] According to an embodiment of the present invention, multiple driving lines VL, together with multiple connecting lines LL, can serve as lines for transmitting signals output from the flexible circuit board 310 and the printed circuit board 330 to multiple pixel driving circuits PD. The multiple driving lines VL can be disposed at the display area AA and electrically connected to each of the multiple pixel driving circuits PD. The multiple driving lines VL can extend from the display area AA toward the non-display area NA and can be electrically connected to the multiple connecting lines LL. Therefore, signals output from the flexible circuit board 310 and the printed circuit board 330 can be transmitted to each of the multiple pixel driving circuits PD via the multiple connecting lines LL and the multiple driving lines VL.

[0087] According to an embodiment of the present invention, when the bending region BA bends, a portion of the multiple connecting lines LL can bend together. Stress concentrates on the bent portion of the connecting lines LL, thus cracks may appear in the connecting lines LL. Therefore, the multiple connecting lines LL can be made of a conductive material with excellent flexibility to reduce cracking when the bending region BA bends. For example, the multiple connecting lines LL can be made of conductive materials with excellent flexibility such as gold (Au), silver (Ag), aluminum (Al), etc., but are not limited thereto. Furthermore, the multiple connecting lines LL can also be configured as one of various conductive materials used in the display region AA. The multiple connecting lines LL can be made of a multilayer structure including various conductive materials. For example, the multiple connecting lines LL can be made of a three-layer structure of titanium (Ti) / aluminum (Al) / titanium (Ti), but are not limited thereto.

[0088] Multiple connecting lines LL can be configured in various shapes to reduce stress. At least a portion of the multiple connecting lines LL disposed on the bending region BA can extend in the same direction as the bending region BA, or can extend in a direction different from the bending region BA to reduce stress. For example, when the bending region BA extends from the first non-display region NA1 toward the second non-display region NA2 in one direction, at least a portion of the connecting lines LL disposed on the bending region BA can extend in a direction inclined relative to this direction. As another example, at least a portion of the multiple connecting lines LL can be configured in various shaped patterns. For example, at least a portion of the multiple connecting lines LL disposed on the bending region BA can have a pattern in which conductive patterns of at least one shape, such as diamond shape, rhombus shape, trapezoidal wave shape, triangular wave shape, sawtooth wave shape, sine wave shape, circular shape, and omega (Ω) shape, are repeatedly disposed, but are not limited thereto. Therefore, in order to minimize the stress concentrated on the multiple connecting lines LL and the resulting cracks, the shape of the multiple connecting lines LL can be formed in various shapes including, but not limited to, the shapes described above.

[0089] According to an embodiment of the present invention, the width of the second non-display area NA2, in which a plurality of pad electrodes PE are provided, may be wider than the width of the curved area BA, in which only a plurality of connecting lines LL are provided. Furthermore, the width of the display area AA, in which a plurality of sub-pixels are provided, may be wider than the width of the curved area BA, in which only a plurality of connecting lines LL are provided. Although the width of the curved area BA is shown in the drawings as narrower than the width of other areas of the substrate 110, the shape of the substrate 110 including the curved area BA may be exemplary, but is not limited thereto.

[0090] A pad portion PAD, including multiple pad electrodes PE, may be disposed at the second non-display area NA2. One or more flexible circuit boards 310 may be attached or bonded to the pad portion PAD. The multiple pad electrodes PE of the pad portion PAD may be electrically connected to one or more flexible circuit boards 310, and may transmit various signals (or power supplies) received from the printed circuit board 330 and the flexible circuit board 310 to multiple pixel driving circuits PD of the display area AA.

[0091] The flexible circuit board 310 can be a film in which various components are disposed on a flexible base film. For example, a driver integrated circuit 311, including one or more of a gate driver integrated circuit and a data driver integrated circuit, can be disposed on the flexible circuit board 310, but is not limited thereto. The driver integrated circuit 311 can be a component that processes data and drive signals for displaying images. The driver integrated circuit 311 can be disposed in a manner such as chip-on-glass (COG), chip-on-film (COF), or tape-on-carrier (TCP) based on the mounting method, but is not limited thereto. The flexible circuit board 310 can be attached or bonded to multiple pad electrodes PE via a conductive adhesive layer, but is not limited thereto.

[0092] Printed circuit board 330 is electrically connected to one or more flexible circuit boards 310 and can be a component that supplies signals to driver integrated circuit 311. Printed circuit board 330 may be disposed on one side of flexible circuit board 310 and may be electrically connected to flexible circuit board 310. Circuit components (such as memory or various passive circuit elements) for providing various signals to driver integrated circuit 311 may be additionally disposed on printed circuit board 330.

[0093] The drive circuit section 300 according to an embodiment of the present invention may further include a timing controller 350 and a power management integrated circuit 370.

[0094] The timing controller 350 can be mounted on the printed circuit board 330. The timing controller 350 receives image data and timing synchronization signals from the host control unit, converts the image data into pixel data, provides the pixel data to the driver integrated circuit 311, and controls the driving timing of the driver integrated circuit 311 and each of the multiple pixel driver circuits PD based on the timing synchronization signals. For example, the timing controller 350 can be built into the driver integrated circuit 311 or implemented (or configured) within the driver integrated circuit 311.

[0095] The power management integrated circuit (or power drive unit or power generation unit) 370 can be configured to generate and output various power supplies required to drive the display device 1000. For example, the power management integrated circuit 370 can be configured to generate and output power supply voltage, reference voltage, cathode on-state voltage, cathode off-state voltage, etc., based on the input power supply and according to the control of the timing controller 350. For example, the drive voltage can be a voltage used to drive the drive circuit or integrated circuit. The reference voltage can be a voltage used to control (or determine) the brightness (or luminance) of the image displayed in the display area AA or the light emitted from the light-emitting device. The cathode on-state voltage can be a voltage used to turn on (or emit light) the light-emitting device. The cathode off-state voltage can be a voltage used to turn off the light-emitting device. For example, the cathode on-state voltage can be a first common voltage or a first low-potential power supply voltage, and the cathode off-state voltage can be a second common voltage or a second low-potential power supply voltage, but is not limited thereto.

[0096] The driving circuit section 300 according to an embodiment of the present invention may further include a touch driving circuit (or touch integrated circuit) 390.

[0097] The touch driving circuit 390 can be configured to be electrically connected to the first to nth touch driving lines, the first to mth touch sensing lines, and the touch auxiliary line 400 in the touch panel 200. The touch driving circuit 390 can provide touch driving signals to the first to nth touch driving lines and, in response to a touch synchronization signal provided from the timing controller 350, simultaneously provide auxiliary driving signals to the touch auxiliary line 400, generating raw touch data corresponding to the capacitance change of each of the first to mth touch sensing lines, and providing the generated raw touch data to the timing controller 350 or the host control unit, but is not limited thereto. For example, the touch driving circuit 390 can be configured to generate touch coordinate data based on the raw touch data and provide the touch coordinate data to the host control unit. For example, the touch driving circuit 390 can be integrated or built into the driver integrated circuit 311.

[0098] The timing controller 350 can be configured to control the voltage output from the power management integrated circuit 370 based on user touch information provided from the touch driving circuit 390 or the host control unit. For example, when a user adjusts the screen brightness (or luminance) of the display device 1000 via touch panel 200 or button operation, the timing controller 350 can be configured to provide reference voltage data and cathode disconnect voltage data (or second common voltage data) to the power management integrated circuit 370 based on screen brightness data corresponding to the screen brightness, according to the user operation (or setting). The power management integrated circuit 370 can be configured to generate and output the reference voltage and cathode disconnect voltage based on each of the reference voltage data and cathode disconnect voltage data provided from the timing controller 350.

[0099] Figure 4 This is a diagram illustrating the circuit structure according to an embodiment of the present invention. Figure 4 It is shown that it includes Figure 3 A diagram of one microdriver in each of the multiple pixel driving circuits shown.

[0100] exist Figure 4 In this example, as an example, one light-emitting device (ED) is connected to a micro-driver MD, but it is not limited to this. For example, eight EDs can be connected to one micro-driver MD. For example, eight EDs in different lines (or horizontal lines or row lines) can be connected to one micro-driver MD. In another example, 16 EDs can be connected to one micro-driver MD, or 32 or 64 EDs can be connected simultaneously (or together) to one micro-driver MD. For example, the micro-driver MD can be a sub-driver MD. For example, the ED can be a micro-light-emitting device, a micro-light-emitting diode, or a micro-light-emitting diode chip. For example, the ED can have a scale from 1 μm to 100 μm, but it is not limited to this.

[0101] A microdriver MD can be configured to apply a drive current (or data current) to a light-emitting device ED based on a scan signal (or reference voltage) and a light-emitting signal. A microdriver MD according to an embodiment of the present invention may include a drive transistor TDR and a light-emitting transistor TEM, but is not limited thereto.

[0102] According to an embodiment of the present invention, a high-potential power supply voltage VDD can be applied to the first electrode of a driving transistor TDR, the first electrode of a light-emitting transistor TEM can be connected to the second electrode of the driving transistor TDR, and a scan signal SC can be applied to the gate of the driving transistor TDR. The scan signal SC applied to the gate of the driving transistor TDR is a DC power supply, and a fixed reference voltage Vref can be applied for each frame, but is not limited thereto. For example, the reference voltage Vref can be changed for one or more frames. For example, the reference voltage Vref can be adjusted (or changed) based on screen brightness according to user operation (or settings).

[0103] According to an embodiment of the present invention, the second electrode of the driving transistor TDR can be connected to the first electrode of the light-emitting transistor TEM, the light-emitting device ED can be connected to the second electrode of the light-emitting transistor TEM, and the light-emitting signal EM can be applied to the gate of the light-emitting transistor TEM. The light-emitting signal EM applied to the gate of the light-emitting transistor TEM can be a pulse-width modulated signal that varies for each frame, but is not limited thereto. For example, the light-emitting signal EM can include a duty-on period that turns the light-emitting transistor TEM on and a duty-off period that turns the light-emitting transistor TEM off. For example, the duty-on period of the light-emitting signal EM can be set (or adjusted) by corresponding to the gray level of the pixel data.

[0104] The first electrode of the light-emitting device (ED) can be connected to the second electrode of the light-emitting transistor (TEM), and the second electrode of the ED can be connected to a low-potential power supply line. For example, the first electrode of the ED can be an anode or an anode terminal, and the second electrode can be a cathode or a cathode terminal, but is not limited thereto. For example, the voltage applied from the TEM to the first electrode of the ED can be an anode voltage. For example, the voltage applied to the low-potential power supply line can be a cathode voltage Vce. For example, the voltage applied to the low-potential power supply line can be a cathode turn-on voltage or a cathode turn-off voltage. For example, one or more of the cathode turn-on voltage and cathode turn-off voltage can be changed (or adjusted). For example, one or more of the cathode turn-on voltage and cathode turn-off voltage can be changed (or adjusted) based on screen brightness according to user operation (or settings). For example, one or more of the cathode turn-on voltage and cathode turn-off voltage can be changed (or adjusted) according to a reference voltage Vref.

[0105] Each of the driving transistor TDR and the light-emitting transistor TEM can be an n-type transistor or a p-type transistor.

[0106] In the micro-driver MD, the driving transistor TDR can be turned on by a scan signal SC applied from the pixel driving circuit PD, and the light-emitting transistor TEM can be turned on by a light-emitting signal EM applied from the pixel driving circuit PD. Therefore, by applying a high-potential power supply voltage VDD to the first electrode of the driving transistor TDR, a driving current is applied to the light-emitting device ED via the driving transistor TDR and the light-emitting transistor TEM, thus enabling the light-emitting device ED to emit light. For example, the light-emitting device ED can emit light when a cathode on-state voltage is applied to a low-potential power supply line, and may not emit light when a cathode off-state voltage is applied to a low-potential power supply line.

[0107] Figures 5 to 7 This is a plan view of a display device according to an embodiment of the present invention. For example, Figure 5It is a magnified view of a display area that includes multiple pixels. For example, Figure 6 It is a magnified view of the display area, including one pixel. For example, Figure 7 It is a magnified view of a display area that includes multiple pixels.

[0108] Figure 5 and Figure 6 Multiple signal lines TL, multiple communication lines NL, multiple first electrodes CE1, multiple embankments BNK, and multiple light-emitting devices ED are shown, but are not limited thereto. Figure 7 yes Figure 5 An enlarged plan view with multiple second electrodes CE2 is attached. For convenience, the areas overlapping with the second electrodes CE2 are indicated by dashed lines.

[0109] Reference Figures 5 to 7 Multiple pixels (PX), consisting of multiple sub-pixels, can be set in the display area (AA). Each sub-pixel includes a light-emitting device (ED) and can emit light independently. The multiple sub-pixels can be configured in multiple rows and columns, and can be set in a matrix form, but are not limited to this.

[0110] Multiple subpixels may include a first subpixel SP1, a second subpixel SP2, and a third subpixel SP3. For example, multiple pixels (or subpixels) PX may include a first subpixel SP1, a second subpixel SP2, and a third subpixel SP3 positioned along a row direction (or a first direction X). For example, any one of the first subpixel SP1, the second subpixel SP2, and the third subpixel SP3 may be a red subpixel, another subpixel may be a green subpixel, and yet another subpixel may be a blue subpixel. The types of multiple subpixels are exemplary but not limited thereto.

[0111] Each of the multiple pixels PX may include one or more first sub-pixels SP1, one or more second sub-pixels SP2, and one or more third sub-pixels SP3. For example, a pixel PX may include a pair of first sub-pixels SP1, a pair of second sub-pixels SP2, and a pair of third sub-pixels SP3.

[0112] A pair of first sub-pixels SP1 may consist of sub-pixels SP1a (first-first) and SP1b (first-second). A pair of second sub-pixels SP2 may consist of sub-pixels SP2a (second-first) and SP2b (second-second). A pair of third sub-pixels SP3 may consist of sub-pixels SP3a (third-first) and SP3b (third-second). For example, a pixel PX may include sub-pixels SP1a (first-first), SP1b (first-second), SP2a (second-first), SP2b (second-second), SP3a (third-first), and SP3b (third-second), but is not limited to these.

[0113] The subpixels constituting a pixel PX can be arranged differently. For example, in a pixel PX, a pair of first subpixels SP1 can be arranged in the same column, a pair of second subpixels SP2 can be arranged in the same column, and a pair of third subpixels SP3 can be arranged in the same column. The first subpixels SP1, second subpixels SP2, and third subpixels SP3 can be arranged in the same row. The number and arrangement of the subpixels constituting a pixel PX are exemplary, but not limited to.

[0114] Multiple signal lines TL can be positioned in the region between multiple sub-pixels. These multiple signal lines TL can extend along the column direction (or the second direction Y) in the region between multiple sub-pixels. The multiple signal lines TL can originate from the pixel driving circuit (…). Figure 3 The PD or micro-driver MD shown is a line that transmits anode voltage to multiple sub-pixels. For example, multiple signal lines TL can be electrically connected to multiple pixel drive circuits for multiple sub-pixels. Figure 3 The PD shown is shown, and the first electrode CE1 is shown. From the pixel driving circuit ( Figure 3 The anode voltage output by the PD (as shown) can be transmitted to the first electrode CE1 of multiple sub-pixels via multiple signal lines TL. For example, the first electrode CE1 can be electrically connected to the anode of the light-emitting device ED (ED). Figure 9 The electrode shown is 134). Therefore, the anode voltage from the signal line TL can be transmitted to the anode of the light-emitting device ED through the first electrode CE1. Figure 9 (as shown in 134). For example, the first electrode CE1 can be a connecting electrode, a connecting electrode pattern, or a connecting pattern.

[0115] Therefore, instead of forming multiple transistors and storage capacitors in each of the multiple sub-pixels, a pixel driving circuit in which multiple pixel circuits are integrated can be used. Figure 3 The structure of the display device 1000 is simplified by using a PD (as shown). Furthermore, since the circuitry located at each of the multiple sub-pixels is integrated into a single pixel drive circuit (PD), the structure is further simplified. Figure 3 As shown in the PD), efficient and low-power driving is therefore possible.

[0116] The multiple signal lines TL may include a first signal line TL1, a second signal line TL2, a third signal line TL3, a fourth signal line TL4, a fifth signal line TL5, and a sixth signal line TL6. Each of the first signal line TL1 and the second signal line TL2 is electrically connected to each of a pair of first sub-pixels SP1. Each of the third signal line TL3 and the fourth signal line TL4 is electrically connected to each of a pair of second sub-pixels SP2. Each of the fifth signal line TL5 and the sixth signal line TL6 is electrically connected to each of a pair of third sub-pixels SP3.

[0117] A first signal line TL1 may be disposed on one side of a pair of first sub-pixels SP1, and a second signal line TL2 may be disposed on the other side of the pair of first sub-pixels SP1. The first signal line TL1 may be electrically connected to the first electrode CE1 of one of the first sub-pixels SP1 (e.g., the first-1st sub-pixel SP1a). The second signal line TL2 may be electrically connected to the first electrode CE1 of the other first sub-pixel SP1 (e.g., the first-2nd sub-pixel SP1b) in the pair of first sub-pixels SP1.

[0118] A third signal line TL3 may be disposed on one side of a pair of second sub-pixels SP2, and a fourth signal line TL4 may be disposed on the other side of the pair of second sub-pixels SP2. For example, the third signal line TL3 may be disposed adjacent to the second signal line TL2. The third signal line TL3 may be electrically connected to the first electrode CE1 of one of the second sub-pixels SP2 (e.g., the 2-1st sub-pixel SP2a). The fourth signal line TL4 may be electrically connected to the first electrode CE1 of the other second sub-pixel SP2 (e.g., the 2-2nd sub-pixel SP2b).

[0119] The fifth signal line TL5 can be located on one side of a pair of third sub-pixels SP3, and the sixth signal line TL6 can be located on the other side of the pair of third sub-pixels SP3. For example, the fifth signal line TL5 can be located adjacent to the fourth signal line TL4. The sixth signal line TL6 can be located adjacent to the first signal line TL1 connected to the adjacent pixel PX. The fifth signal line TL5 can be electrically connected to the first electrode CE1 of one of the third sub-pixels SP3 (e.g., the 3-1st sub-pixel SP3a) of the pair of third sub-pixels SP3. The sixth signal line TL6 can be electrically connected to the first electrode CE1 of the other third sub-pixel SP3 (e.g., the 3-2nd sub-pixel SP3b) of the pair of third sub-pixels SP3.

[0120] Multiple signal lines (TLs) can be made of conductive materials. For example, multiple signal lines (TLs) can be made of conductive materials such as titanium (Ti), aluminum (Al), copper (Cu), molybdenum (Mo), nickel (Ni), chromium (Cr), indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), etc., but are not limited to these. As another example, multiple signal lines (TLs) can be made of a multilayer structure of conductive materials. For example, multiple signal lines (TLs) can be made of a multilayer structure of titanium (Ti) / aluminum (Al) / titanium (Ti) / indium tin oxide (ITO), but are not limited to these.

[0121] Multiple communication lines NL can be disposed in the area between multiple pixels PX. Multiple communication lines NL can be configured to extend along the row direction in the area between multiple pixels PX. Multiple communication lines NL are disposed in the area between multiple second electrodes CE2 and may not overlap with the multiple second electrodes CE2. For example, multiple communication lines NL can be lines (or wiring) used for short-range communication (such as near-field communication (NFC)). Multiple communication lines NL can be used as antennas. For example, multiple communication lines NL can be multiple interconnects, but are not limited to this.

[0122] According to embodiments of the present invention, a dam section (BNK) can be disposed at each of a plurality of sub-pixels. The plurality of dam sections (BNK) can be structures on which a plurality of light-emitting devices (EDs) are mounted. The plurality of dam sections (BNK) can guide the position of the plurality of light-emitting devices (EDs) during a transfer process. In the transfer process of the plurality of light-emitting devices (EDs), the plurality of EDs can be transferred onto the plurality of dam sections (BNK). The entire area of ​​the light-emitting device (ED) can overlap with the dam section (BNK). For example, in a planar view, the overall size of the light-emitting device (ED) can be smaller than the size of the dam section (BNK). For example, the plurality of dam sections (BNK) can be a dam pattern, structure, or protruding pattern, etc., but are not limited thereto.

[0123] The dam portions BNK of the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 can be configured to be spaced apart from each other along the row direction (or the second direction Y). The dam portions BNK of the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 can be configured to be separated from each other. Therefore, in the process of transferring light-emitting devices to sub-pixels, it is easy to identify which different types of light-emitting devices ED are transferred to the dam portions BNK of the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3, thereby preventing or minimizing transfer defects in the light-emitting device transfer process.

[0124] According to embodiments of the present invention, the dam portion BNK of the first-1 sub-pixel SP1a and the dam portion BNK of the first-2 sub-pixel SP1b can be connected to each other, or can be spaced apart or separated from each other. For example, considering design requirements such as transfer process requirements, the dam portion BNK of the first-1 sub-pixel SP1a and the dam portion BNK of the first-2 sub-pixel SP1b, in which light-emitting devices ED of the same type are provided, can be connected to each other, or can be spaced apart or separated from each other. Furthermore, the dam portion BNK of the second-1 sub-pixel SP2a and the dam portion BNK of the second-2 sub-pixel SP2b can be connected to each other, or can be spaced apart or separated from each other. The dam portion BNK of the third-1 sub-pixel SP3a and the dam portion BNK of the third-2 sub-pixel SP3b can be connected to each other, or can be spaced apart or separated from each other. Therefore, the dam portion BNK of a pair of first sub-pixels SP1, the dam portion BNK of a pair of second sub-pixels SP2, and the dam portion BNK of a pair of third sub-pixels SP3 can be formed in various ways, but are not limited thereto.

[0125] According to embodiments of the present invention, the plurality of dammed brick walls (BNKs) can be made of organic insulating materials. The plurality of dammed brick walls (BNKs) can be composed of a single layer or multiple layers of organic insulating materials. For example, the plurality of dammed brick walls (BNKs) can be composed of photoresist, polyimide, or acrylic-based materials, but are not limited thereto.

[0126] A first electrode CE1 may be disposed at each of a plurality of sub-pixels. The first electrode CE1 may be disposed on the embankment BNK while overlapping with it. The first electrode CE1 may be electrically connected to one of a plurality of signal lines TL. At least a portion of the first electrode CE1 may extend to the outside of the embankment BNK and be electrically connected to the signal line TL closest to the first electrode CE1. A portion of the first electrode CE1 may overlap with the embankment BNK, while the remaining portion of the first electrode CE1 may not overlap with the embankment BNK.

[0127] According to an embodiment of the present invention, a portion of the first electrode CE1 of the first sub-pixel SP1a may extend to one side of the first sub-pixel SP1a and may be electrically connected to the first signal line TL1; a portion of the first electrode CE1 of the first sub-pixel SP1b may extend to the other side of the first sub-pixel SP1b and may be electrically connected to the second signal line TL2. A portion of the first electrode CE1 of the second sub-pixel SP2a may extend to one side of the second sub-pixel SP2a and may be electrically connected to the third signal line TL3; a portion of the first electrode CE1 of the second sub-pixel SP2b may extend to the other side of the second sub-pixel SP2b and may be electrically connected to the fourth signal line TL4. A portion of the first electrode CE1 of the third sub-pixel SP3a may extend to one side of the third sub-pixel SP3a and may be electrically connected to the fifth signal line TL5; a portion of the first electrode CE1 of the third sub-pixel SP3b may extend to the other side of the third sub-pixel SP3b and may be electrically connected to the sixth signal line TL6.

[0128] The first electrode CE1 can be electrically connected to the anode (or anode terminal) of the light-emitting device ED. Figure 9 As shown in 134). From the pixel driving circuit ( Figure 3 The anode voltage of the PD (as shown) can be transmitted sequentially to the light-emitting device ED via the signal line TL and the first electrode CE1. Pixel driving circuit ( Figure 3 The PD shown can apply the same voltage (or anode voltage) to the first electrode CE1 of each of the multiple sub-pixels, but is not limited to this. For example, a pixel driving circuit ( Figure 3 The PD shown can be configured to apply a different voltage to the first electrode CE1 of each of the plurality of sub-pixels based on the image displayed on the respective sub-pixels. For example, different voltages can be applied to the first electrode CE1 of each of the plurality of sub-pixels. Therefore, the first electrode CE1 can be a pixel electrode, but is not limited thereto.

[0129] The first electrode CE1 may be made of a conductive material. For example, the first electrode CE1 may be integrally formed with multiple signal lines TL. For example, the first electrode CE1 may be made of the same conductive material as the multiple signal lines TL, but is not limited thereto. As an embodiment of the present invention, the first electrode CE1 may be made of conductive materials such as titanium (Ti), aluminum (Al), copper (Cu), molybdenum (Mo), nickel (Ni), chromium (Cr), indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), etc., but is not limited thereto. As another embodiment of the present invention, the first electrode CE1 may be made of a multilayer structure of conductive material. For example, multiple first electrodes CE1 may be made of a multilayer structure of titanium (Ti) / aluminum (Al) / titanium (Ti) / indium tin oxide (ITO), but is not limited thereto.

[0130] Multiple light-emitting devices (EDs) can be disposed at the first electrode CE1 and overlap with the embankment BNK and the first electrode CE1. The entire area of ​​the multiple light-emitting devices (EDs) can overlap with the embankment BNK and the first electrode CE1. The multiple light-emitting devices (EDs) can contact the first electrode CE1 to overlap with the embankment BNK and the first electrode CE1.

[0131] Multiple light-emitting devices (EDs) can be disposed at and electrically connected to the first electrode CE1. Therefore, the light-emitting devices (EDs) can emit light by receiving the anode voltage from the pixel driving circuit PD via the signal line TL and the first electrode CE1.

[0132] Multiple light-emitting devices (EDs) may include a first light-emitting device 130, a second light-emitting device 140, and a third light-emitting device 150.

[0133] The first light-emitting device 130 may be disposed at the first sub-pixel SP1. The second light-emitting device 140 may be disposed at the second sub-pixel SP2. The third light-emitting device 150 may be disposed at the third sub-pixel SP3. For example, any one of the first light-emitting device 130, the second light-emitting device 140, and the third light-emitting device 150 may be a red light-emitting device, another light-emitting device may be a green light-emitting device, and the last light-emitting device may be a blue light-emitting device, but is not limited thereto. Therefore, red light, green light, and blue light emitted from multiple light-emitting devices ED can be combined to achieve light of various colors, including white. The types of multiple light-emitting devices ED are exemplary, but not limited thereto.

[0134] The first light-emitting device 130 may include a first-1 light-emitting device 130a disposed at the first-1 sub-pixel SP1a and a first-2 light-emitting device 130b disposed at the first-2 sub-pixel SP1b. The second light-emitting device 140 may include a second-1 light-emitting device 140a disposed at the second-1 sub-pixel SP2a and a second-2 light-emitting device 140b disposed at the second-2 sub-pixel SP2b. The third light-emitting device 150 may include a third-1 light-emitting device 150a disposed at the third-1 sub-pixel SP3a and a third-2 light-emitting device 150b disposed at the third-2 sub-pixel SP3b.

[0135] The second electrode CE2 can be disposed at each of the multiple sub-pixels. The second electrode CE2 can be positioned above the light-emitting device ED. The second electrode CE2 can be electrically connected to the pixel driving circuit via multiple contact electrodes CCE. Figure 3 The second electrode CE2 can be electrically connected to the cathode (or cathode terminal) of the light-emitting device ED (as shown in the diagram). Figure 9 As shown in 135), to transfer the cathode voltage (or low potential supply voltage) from the pixel drive circuit ( Figure 3The PD (PD) shown is transmitted to the light-emitting device ED.

[0136] According to an embodiment of the present invention, the cathode voltage (or common electrode voltage) applied to the second electrode CE2 of each of the plurality of sub-pixels can be the same. For example, the cathode voltage can be commonly applied to the second electrode CE2 of each of the plurality of sub-pixels and the cathode of the light-emitting device ED. Figure 9 (as shown in 135). Therefore, the second electrode CE2 can be a common electrode, a common electrode pattern, a common cathode, a common cathode pattern, a common segmented electrode, or a common segmented electrode pattern, but is not limited thereto.

[0137] According to another embodiment of the present invention, the cathode voltage of the second electrode CE2 applied to each of the plurality of sub-pixels may be based on a reference voltage ( Figure 4 The cathode voltage can be changed based on the screen brightness, as shown in the Vref diagram. For example, the cathode voltage can be adjusted (or changed) based on user actions (or settings).

[0138] According to an embodiment of the present invention, the second electrode CE2 may have a size corresponding to a row (or horizontal line). For example, the second electrode CE2 may have a width corresponding to a row and may extend along the row direction (or the first direction X). For example, the second electrode CE2 may be commonly connected to the light-emitting device ED in each of a plurality of pixels PX arranged along the row direction. For example, the second electrode CE2 may be commonly connected to the cathode of the light-emitting device ED in each of 16 pixels PX arranged along the row direction. Figure 9 As shown in 135), but not limited to this. For example, the second electrode CE2 can be commonly connected to the cathodes of 96 light-emitting devices ED arranged along the row direction (as shown in 135), but not limited to this. Figure 9 As shown in 135), but not limited to this. For example, the second electrode CE2 can be commonly connected to the cathodes of 192 light-emitting devices ED in a row (as shown in 135), but not limited to this. Figure 9 (as shown in 135), but not limited to this.

[0139] According to another embodiment of the present invention, some of the second electrodes CE2 of each of the plurality of sub-pixels may be configured to be spaced apart or separated from each other. For example, the second electrode CE2 connected to the pixel PX in the nth row and the second electrode CE2 connected to the pixel PX in the (n+1)th row may be configured to be spaced apart or separated from each other. As an embodiment of the present invention, the plurality of second electrodes CE2 may be configured to be spaced apart from each other with a plurality of communication lines NL extending along the row direction therebetween. Therefore, the number of the plurality of sub-pixels may be greater than the number of the plurality of second electrodes CE2.

[0140] Multiple second electrodes CE2 may be composed of transparent conductive materials, but are not limited to this. The multiple second electrodes CE2 may be composed of transparent conductive materials so that light emitted from the light-emitting device ED can be directed towards the upper part of the second electrodes CE2. For example, the second electrodes CE2 may be composed of transparent conductive materials such as indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), etc., but are not limited to this.

[0141] Multiple contact electrodes CCE may be disposed on the substrate 110. For example, the multiple contact electrodes CCE may be configured to be spaced apart from multiple embankments BNK and multiple signal lines TL. Each of the multiple second electrodes CE2 may overlap with at least one contact electrode CCE. For example, one second electrode CE2 may overlap with multiple contact electrodes CCE.

[0142] Multiple contact electrodes CCE can be electrically connected to multiple second electrodes CE2. The multiple contact electrodes CCE can be disposed between the substrate 110 and the multiple second electrodes CE2, and are configured to transmit power from the pixel driving circuit via a low-potential power line. Figure 3 The cathode voltage supplied by the PD shown is transmitted to the second electrode CE2.

[0143] According to an embodiment of the present invention, when a light-emitting device (ED) is configured as a micro-LED chip, multiple micro-LED chips can be formed on a wafer, and the micro-LED chips can be transferred to a substrate 110 to manufacture a display panel 100. Various defects may occur during the process of transferring multiple light-emitting devices (EDs) with micro-sized (or fine-sized) dimensions from the wafer to the substrate 110. For example, in some sub-pixels, defects may occur where the light-emitting devices (EDs) are not transferred, and in other sub-pixels, defects may occur where the light-emitting devices (EDs) are not transferred to their correct positions due to alignment errors. Furthermore, the transfer process may proceed normally, but the transferred light-emitting devices (EDs) themselves may be defective. Therefore, considering the defects that may occur during the transfer process of multiple light-emitting devices (EDs), multiple light-emitting devices (EDs) of the same type can be transferred to one sub-pixel. Illumination tests of multiple light-emitting devices (EDs) can be performed, and only the one light-emitting device (ED) ultimately determined to be normal can be used.

[0144] According to an embodiment of the present invention, the first-1 light-emitting device 130a and the first-2 light-emitting device 130b can be transferred together to a pixel PX, where defect inspection can be performed. As an embodiment of the present invention, when it is determined that the first-1 light-emitting device 130a and the first-2 light-emitting device 130b are normal, only the first-1 light-emitting device 130a can be used, and the first-2 light-emitting device 130b can be omitted. In another embodiment of the present invention, if only the first-2 light-emitting device 130b is determined to be normal, then the first-1 light-emitting device 130a is not used, and only the first-2 light-emitting device 130b can be used. Therefore, even if multiple light-emitting devices ED of the same type are transferred to a pixel PX, ultimately only one light-emitting device ED can be used.

[0145] According to embodiments of the present invention, either one of a pair of light-emitting devices (EDs) can be a primary (or main) light-emitting device (ED), while the other light-emitting device (ED) can be a redundant light-emitting device (ED). The redundant light-emitting device (ED) can be a backup light-emitting device (ED) prepared for the failure of the primary light-emitting device (ED). When the primary light-emitting device (ED) fails, the redundant light-emitting device (ED) can be used as a replacement for the primary light-emitting device (ED). Therefore, by transferring the primary light-emitting device (ED) and the redundant light-emitting device (ED) together to a pixel PX, the degradation of display quality due to the failure of the primary light-emitting device (ED) and the redundant light-emitting device (ED) can be minimized. For example, the first-1 light-emitting devices 130a, the second-1 light-emitting devices 140a, and the third-1 light-emitting devices 150a transferred to a pixel PX can be used as primary light-emitting devices (EDs), and the first-2 light-emitting devices 130b, the second-2 light-emitting devices 140b, and the third-2 light-emitting devices 150b can be used as redundant light-emitting devices (EDs).

[0146] Figure 8 It is along Figure 2 The cross-sectional view shown is taken by line I-I'. Figure 9 This is a cross-sectional view of a first light-emitting device according to an embodiment of the present invention. For example, Figure 8 It is along Figure 2 The diagram shows a cross-sectional view of the display area AA, the first non-display area NA, the curved area BA, and the second non-display area NA2, taken by line I-I'. Figure 9 It is a cross-sectional view of a portion of the display area AA.

[0147] Reference Figure 8 The buffer layer 111 may be disposed in the remaining area of ​​the substrate 110 except for the bending region BA. The buffer layer 111 may include a first buffer layer 111a and a second buffer layer 111b.

[0148] The first buffer layer 111a and the second buffer layer 111b may be disposed at the display area AA, the first non-display area NA1, and the second non-display area NA2. The first buffer layer 111a and the second buffer layer 111b can reduce the penetration of moisture or impurities through the substrate 110. The first buffer layer 111a and the second buffer layer 111b may be made of inorganic insulating materials. For example, the first buffer layer 111a and the second buffer layer 111b may be made of single or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx), but are not limited thereto.

[0149] According to an embodiment of the present invention, a portion of the first buffer layer 111a and the second buffer layer 111b on the bending region BA can be removed. The upper surface of the substrate 110 located at the bending region BA can be exposed without being covered by the first buffer layer 111a and the second buffer layer 111b. Since a portion of the first buffer layer 111a and the second buffer layer 111b made of inorganic insulating material is removed at the bending region BA, cracks generated at the first buffer layer 111a and the second buffer layer 111b can be prevented or minimized when the bending region BA is bent.

[0150] Multiple alignment marks MK may be disposed between the first buffer layer 111a and the second buffer layer 111b. The multiple alignment marks MK may be configured to identify (or align) the location of the pixel driving circuit PD during the manufacturing process of the display panel 100. For example, the multiple alignment marks MK may be configured to align the location of the pixel driving circuit PD transferred onto the adhesive layer 112. For example, the multiple alignment marks MK may be omitted, but are not limited thereto.

[0151] The adhesive layer 112 may be disposed on the second buffer layer 111b. The adhesive layer 112 may be disposed at the display area AA, the first non-display area NA1, the bending area BA, and the second non-display area NA2. For example, at least a portion of the adhesive layer 112 may be removed from the non-display areas NA1 and NA2, which include the bending area BA. For example, the adhesive layer 112 may be made of any of, but is not limited to, polymers, epoxy resins, UV-curable resins, polyimide-based materials, acrylate-based materials, urethane-based materials, and polydimethylsiloxane (PDMS).

[0152] In the display area AA, a pixel driving circuit PD can be disposed on the adhesive layer 112. The pixel driving circuit PD can be supported by the buffer layer 111. When the pixel driving circuit PD is implemented as a driver (or a driver integrated circuit or a driver chip), the driver can be mounted on the adhesive layer 112 by a transfer process, but is not limited thereto.

[0153] A protective layer 113 may be disposed on the adhesive layer 112 and the pixel driving circuit PD. The protective layer 113 may include a first protective layer 113a and a second protective layer 113b. For example, the first protective layer 113a and the second protective layer 113b may be disposed on the adhesive layer 112 and the pixel driving circuit PD. The first protective layer 113a and the second protective layer 113b may be configured to surround the side surface (or lateral surface) of the pixel driving circuit PD, but are not limited thereto. For example, the second protective layer 113b may be configured to cover at least a portion of the upper surface of the pixel driving circuit PD. For example, at least one of the first protective layer 113a and the second protective layer 113b disposed on the curved area BA may be omitted. For example, the first protective layer 113a may be completely disposed at the display area AA and the non-display area NA, and the second protective layer 113b may be partially disposed at the display area AA, the first non-display area NA1, and the second non-display area NA2, and may not be disposed at the curved area BA. For example, the second protective layer 113b (or a portion of the first protective layer 113a) at the curved area BA can be removed, but is not limited thereto.

[0154] The first protective layer 113a and the second protective layer 113b may be made of organic insulating materials, but are not limited thereto. For example, the first protective layer 113a and the second protective layer 113b may be made of photoresist, polyimide, or optical acrylic-based materials, but are not limited thereto. For example, the first protective layer 113a and the second protective layer 113b may be an outer coating, an insulating layer, or an organic insulating layer, but are not limited thereto.

[0155] According to an embodiment of the present invention, a wiring layer (or pixel wiring layer) may be disposed on the protective layer 113. For example, the wiring layer may be configured to surround or cover the pixel driving circuit PD. The wiring layer may include a plurality of first interconnects 121.

[0156] Multiple first interconnects 121 may be disposed on the protective layer 113. For example, multiple first interconnects 121 may be disposed on the second protective layer 113b at the display area AA. The multiple first interconnects 121 may be lines (or intermediate lines or jumper lines) configured to electrically connect the pixel driving circuit PD to other components and / or lines in different layers. For example, the pixel driving circuit PD may be electrically connected to multiple signal lines TL and multiple contact electrodes CCE, etc., via the multiple first interconnects 121.

[0157] The plurality of first connections 121 may include, but are not limited to, first-1 connection 121a, first-2 connection 121b, first-3 connection 121c, and first-4 connection 121d. For example, the plurality of first-1 connections 121a may be disposed on the second protective layer 113b. The plurality of first-1 connections 121a may be configured to be electrically connected to the pixel driving circuit PD. The plurality of first-1 connections 121a may be configured to transmit the voltage output from the pixel driving circuit PD to the first electrode CE1 or the second electrode CE2.

[0158] A third protective layer 114 may be disposed on the second protective layer 113b. The third protective layer 114 may be completely disposed in the display area AA and the non-display area NA. In the curved area BA, the third protective layer 114 may cover or surround the side surface (or lateral surface) of the second protective layer 113b and the upper surface of the first protective layer 113a. The third protective layer 114 may be made of an organic insulating material. For example, the third protective layer 114 may be made of photoresist, polyimide, or an optical acrylic-based material, but is not limited thereto. For example, the first protective layer 113a, the second protective layer 113b, and the third protective layer 114 may be made of the same material, but are not limited thereto.

[0159] Multiple first-second connections 121b may be disposed on the third protective layer 114. These multiple first-second connections 121b can be connected to the pixel driving circuit PD via the first-first connection 121a, or they can be directly connected to the pixel driving circuit PD. For example, a portion of the first-second connections 121b can be directly connected to the pixel driving circuit PD through contact holes in the third protective layer 114. Another portion of the first-second connections 121b can be electrically connected to the first-first connection 121a through contact holes in the third protective layer 114. However, embodiments of the present invention are not limited thereto. As an embodiment of the present invention, the voltage output from the pixel driving circuit PD can be transmitted to the first electrode CE1 or the second electrode CE2 via the multiple first-second connections 121b and other connections.

[0160] The display device 1000 according to an embodiment of the present invention may further include an insulating layer 115 in the wiring layer. The insulating layer 115 may be configured to electrically insulate and cover the plurality of first interconnects 121. For example, the insulating layer 115 may include a plurality of insulating layers 115a, 115b and 115c, or may include first to third insulating layers 115a, 115b and 115c.

[0161] According to an embodiment of the present invention, the first insulating layer 115a may be disposed on a plurality of first-second connecting lines 121b. The first insulating layer 115a may be disposed entirely in the display area AA and the non-display area NA, but is not limited thereto. The first insulating layer 115a may be made of an organic insulating material, but is not limited thereto. For example, the first insulating layer 115a may be made of photoresist, polyimide, or an optical acrylic-based material, but is not limited thereto.

[0162] Multiple first-to-third wires 121c may be disposed on the first insulating layer 115a. The multiple first-to-third wires 121c may be electrically connected to multiple first-to-second wires 121b. For example, the first-to-third wires 121c may be electrically connected to the first-to-second wires 121b through contact holes in the first insulating layer 115a.

[0163] The second insulating layer 115b may be disposed on multiple first-to-third connecting lines 121c. The second insulating layer 115b may be disposed in areas other than the bending region BA, but is not limited thereto. The second insulating layer 115b may be disposed in the display region AA, the first non-display region NA1, and the second non-display region NA2, but is not limited thereto. For example, at least a portion of the second insulating layer 115b disposed in the bending region BA may be removed. The second insulating layer 115b may be made of an organic insulating material, but is not limited thereto. For example, the second insulating layer 115b may be made of photoresist, polyimide, or an optical acrylic-based material, but is not limited thereto.

[0164] Multiple first-to-fourth connections 121d may be disposed on the second insulating layer 115b. Multiple first-to-fourth connections 121d may be electrically connected to multiple first-to-third connections 121c. For example, first-to-fourth connections 121d may be electrically connected to first-to-third connections 121c through contact holes in the second insulating layer 115b.

[0165] The first-to-fourth connection 121d can be connected to the contact electrode CCE through the contact hole of the third insulating layer 115c. Therefore, the contact electrode CCE and the pixel driving circuit PD can be electrically connected through the first connection 121. For example, the contact electrode CCE connected to the second electrode CE2 can be electrically connected to the pixel driving circuit PD through the first-to-fourth connection 121d, the first-to-third connection 121c, the first-to-second connection 121b, and the first-to-first connection 121a.

[0166] The first-to-fourth connection 121d can be directly connected to the signal line TL through the contact hole provided at the third insulating layer 115c, or it can be electrically connected to the signal line TL through another additional line or electrode. Therefore, the signal line TL and the pixel driving circuit PD can be electrically connected through the first connection 121.

[0167] Multiple second connections 122 can be disposed on the protective layer 113 in the non-display area NA. For example, multiple second connections 122 can be disposed on the second protective layer 113b in the non-display area NA. The multiple second connections 122 can be used for passing through the pad portion ( Figure 2 The PAD shown will be taken from the flexible circuit board ( Figure 2 The 310 shown) and printed circuit board ( Figure 2 The signal transmitted by 330) shown is transmitted to the pixel driving circuit PD in the display area AA.

[0168] According to an embodiment of the present invention, multiple second lines 122 can be electrically connected to multiple pad electrodes PE, and can be obtained from a flexible circuit board ( Figure 2 The 310 shown) and printed circuit board ( Figure 2 The 330 shown is the received signal.

[0169] According to an embodiment of the present invention, a plurality of second lines 122 may be configured to originate from the pad portion ( Figure 2 The PAD shown extends toward the display area AA and transmits signals to the display area AA. In this case, multiple second lines 122 can be used as connecting lines. Figure 3 (as shown in LL).

[0170] Multiple second lines 122 may include second-1 line 122a, second-2 line 122b, second-3 line 122c, and second-4 line 122d.

[0171] Multiple second-first connections 122a may be disposed on the protective layer 113. For example, multiple second-first connections 122a may be disposed on the second protective layer 113b. The multiple second-first connections 122a may extend from the second non-display area NA2 to the bending area BA and the first non-display area NA1. The multiple second-first connections 122a may be configured to pass through the pad portion ( Figure 2 The PAD shown will be taken from the flexible circuit board ( Figure 2 The 310 shown) and printed circuit board ( Figure 2 The signal transmitted by 330 is transmitted to the pixel driving circuit PD of the display area AA.

[0172] According to an embodiment of the present invention, multiple second-first connections 122a can be electrically connected to the pad electrode PE and the pixel driving circuit PD, respectively. For example, the second-first connections 122a can extend to the display area AA and can be directly connected to the pixel driving circuit PD within the display area AA, or can be electrically connected to the pixel driving circuit PD via other additional lines or electrodes. Furthermore, the second-first connections 122a can be electrically connected to the pad electrode PE within the second non-display area NA2 via the second-second connections 122b, the second-third connections 122c, and the second-fourth connections 122d. Therefore, the pixel driving circuit PD and the pad electrode PE can be electrically connected via the second connections 122.

[0173] Multiple second-2 connections 122b can be disposed on the third protective layer 114. Multiple second-2 connections 122b can be disposed at the second non-display area NA2. The second-2 connections 122b can be electrically connected to the second-1 connection 122a through contact holes in the third protective layer 114. Therefore, from the flexible circuit board ( Figure 2 The 310 shown) and printed circuit board ( Figure 2 The signal shown in 330 can be transmitted to the 2-1 line 122a via the 2-2 line 122b.

[0174] The second-third connection 122c can be disposed on the first insulating layer 115a. The second-third connection 122c can be disposed at the second non-display area NA2. The second-third connection 122c can be electrically connected to the second-second connection 122b through the contact hole of the first insulating layer 115a. Therefore, from the flexible circuit board ( Figure 2 The 310 shown) and printed circuit board ( Figure 2 The signal shown in 330 can be transmitted to the 2-1 line 122a through the 2-3 line 122c and the 2-2 line 122b.

[0175] The second-to-fourth connection 122d can be located on the second insulating layer 115b. The second-to-fourth connection 122d can be located at the second non-display area NA2. The second-to-fourth connection 122d can be electrically connected to the second-to-third connection 122c through the contact hole of the second insulating layer 115b. The second-to-fourth connection 122d can be electrically connected to the pad electrode PE through the contact hole of the third insulating layer 115c.

[0176] According to an embodiment of the present invention, from a flexible circuit board ( Figure 2 The 310 shown) and printed circuit board ( Figure 2The signal of 330 shown can be transmitted to the 2-1 connection 122a via the 2-4 connection 122d, the 2-3 connection 122c, and the 2-2 connection 122b. For example, the 2-2 connection 122a can extend through the bending area BA to the display area AA and can be electrically connected to the pixel driving circuit PD in the display area AA. Therefore, the pad electrode PE provided in the second non-display area NA2 can be electrically connected to the pixel driving circuit PD provided in the display area AA via the 2-4 connection 122d, the 2-3 connection 122c, the 2-2 connection 122b, and the 2-1 connection 122a provided in the bending area BA.

[0177] The multiple first connecting lines 121 and multiple second connecting lines 122 may be formed of a conductive material with excellent ductility or any of the various conductive materials used in the display area AA. As an embodiment of the invention, a portion of the second connecting lines 122 located in the curved area BA may be made of a conductive material with excellent ductility (such as gold (Au), silver (Ag), or aluminum (Al)), but is not limited thereto. As another embodiment of the invention, the multiple first connecting lines 121 and multiple second connecting lines 122 may be composed of an alloy of molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), silver (Ag), and magnesium (Mg), or an alloy thereof, but is not limited thereto.

[0178] The third insulating layer 115c may be disposed on multiple first connecting lines 121 and multiple second connecting lines 122. The third insulating layer 115c may be disposed in areas other than the bending region BA, but is not limited thereto. The third insulating layer 115c may be disposed in the display area AA, the first non-display area NA1, and the second non-display area NA2. At least a portion of the third insulating layer 115c in the bending region BA may be removed. The third insulating layer 115c may be made of an organic insulating material, but is not limited thereto. For example, the third insulating layer 115c may be made of photoresist, polyimide, or an optical acrylic-based material, but is not limited thereto.

[0179] Multiple dam sections (BNK) may be disposed on the third insulating layer 115c in the display area AA. The multiple dam sections (BNK) may be configured to overlap with each of the multiple sub-pixels. The multiple dam sections (BNK) may not be disposed in the first non-display area NA1, the second non-display area NA2, and the curved area BA. One or more light-emitting devices (ED) of the same type may be disposed on each of the multiple dam sections (BNK).

[0180] Multiple signal lines TL can be disposed on the third insulating layer 115c in the display area AA. Multiple signal lines TL can be disposed in the area between multiple dikes BNK. For example, multiple signal lines TL can be disposed adjacent to any one of the multiple dikes BNK. Each signal line in the multiple signal lines TL can be electrically connected to a first connection 121, for example, connections 1-4 121d.

[0181] Multiple contact electrodes CCE may be disposed on the third insulating layer 115c in the display area AA. The multiple contact electrodes CCE may supply cathode voltage from the pixel driving circuit PD to the second electrode CE2. Each of the multiple contact electrodes CCE may be electrically connected to a first connection 121, for example, connections 1-4 121d.

[0182] The first electrode CE1 may be disposed on the embankment BNK. For example, the first electrode CE1 may be configured to extend from the adjacent signal line TL toward the upper part of the embankment BNK. The first electrode CE1 may be disposed on the upper surface and side surface of the embankment BNK. For example, the first electrode CE1 may be configured to extend from the signal line TL on the third insulating layer 115c to the side surface and upper surface of the embankment BNK. The first electrode CE1 may be a contact electrode. The first electrode CE1 may be integrally formed with the signal line TL.

[0183] Reference Figure 9 The first electrode CE1 may be composed of multiple conductive layers. For example, the first electrode CE1 may include a first conductive layer CE1a, a second conductive layer CE1b, a third conductive layer CE1c, and a fourth conductive layer CE1d, but is not limited thereto.

[0184] The first conductive layer CE1a may be disposed on the embankment BNK. The second conductive layer CE1b may be disposed on the first conductive layer CE1a. The third conductive layer CE1c may be disposed on the second conductive layer CE1b. The fourth conductive layer CE1d may be disposed on the third conductive layer CE1c. For example, each of the first conductive layer CE1a, the second conductive layer CE1b, the third conductive layer CE1c, and the fourth conductive layer CE1d may be composed of titanium (Ti), molybdenum (Mo), aluminum (Al), or titanium (Ti) and indium tin oxide (ITO), but is not limited thereto.

[0185] According to embodiments of the present invention, among the plurality of conductive layers constituting the first electrode CE1, some conductive layers having high reflectivity can be configured as alignment marks and / or reflectors (or reflectors) for aligning the light-emitting device ED. For example, the second conductive layer CE1b among the plurality of conductive layers constituting the first electrode CE1 may include a reflective material. For example, the second conductive layer CE1b may include aluminum (Al), but is not limited thereto. Therefore, the second conductive layer CE1b can be configured as a reflector. Furthermore, due to the high reflectivity of the second conductive layer CE1b, it can be easily identified during the manufacturing process; therefore, the position or relocation position of the light-emitting device ED can be aligned based on the second conductive layer CE1b.

[0186] According to embodiments of the present invention, in order to configure the second conductive layer CE1b as a reflector, the third conductive layer CE1c and the fourth conductive layer CE1d covering the second conductive layer CE1b can be partially removed or etched. For example, a portion of the third conductive layer CE1c and the fourth conductive layer CE1d disposed on the embankment BNK can be removed or etched, thereby exposing the upper surface of the second conductive layer CE1b. For example, the central and boundary (or peripheral) portions of the third conductive layer CE1c and the fourth conductive layer CE1d disposed with solder patterns SDP can be left unremoved, and the remaining portions can be removed. For example, the boundary (or peripheral) portions and central portions of each of the third conductive layer CE1c made of titanium (Ti) and the fourth conductive layer CE1d made of indium tin oxide (ITO) can be left unremoved or etched. Therefore, corrosion of the other conductive layers constituting the first electrode CE1 can be prevented or minimized by using an etchant (e.g., TMAH (tetramethylammonium hydroxide) solution) in the masking process (or patterning process) of the first electrode CE1.

[0187] According to embodiments of the present invention, the first conductive layer CE1a and the third conductive layer CE1c may comprise titanium (Ti) or molybdenum (Mo). The second conductive layer CE1b may comprise aluminum (Al). The fourth conductive layer CE1d may comprise a transparent conductive oxide layer, such as indium tin oxide (ITO) or indium zinc oxide (IZO), which has good adhesion to the solder pattern SDP and is resistant to corrosion and acid. However, embodiments of the present invention are not limited thereto.

[0188] The first conductive layer CE1a, the second conductive layer CE1b, the third conductive layer CE1c, and the fourth conductive layer CE1d can be deposited sequentially and then patterned by photolithography and etching processes, but are not limited thereto.

[0189] like Figure 8 and Figure 9As can be seen from the embodiments of the present invention, the signal line TL, contact electrode CCE, and pad electrode PE disposed on the same layer as the first electrode CE1 may be configured with a multilayer structure of conductive material, but are not limited thereto. For example, the signal line TL, contact electrode CCE, and pad electrode PE may be configured with a multilayer structure of indium tin oxide (ITO) / titanium (Ti) / aluminum (Al) / titanium (Ti), but are not limited thereto.

[0190] According to an embodiment of the present invention, a solder pattern SDP may be disposed on a first electrode CE1 in each of a plurality of sub-pixels. The solder pattern SDP may bond a light-emitting device ED to the first electrode CE1. The first electrode CE1 and the light-emitting device ED may be electrically connected via eutectic bonding using the solder pattern SDP, but are not limited thereto. For example, when the solder pattern SDP is made of indium (In) and the anode 134 of the light-emitting device ED is made of gold (Au), the solder pattern SDP and the anode 134 may be bonded by applying heat and pressure during the transfer process of the light-emitting device ED. The light-emitting device ED may be bonded to the solder pattern SDP and the first electrode CE1 via eutectic bonding without a separate adhesive. For example, the solder pattern SDP may be made of indium (In), tin (Sn), or alloys thereof, but are not limited thereto. For example, the solder pattern SDP may be a contact pattern, a bonding pad, or a connecting pad, etc., but are not limited thereto.

[0191] According to an embodiment of the present invention, a passivation layer 116 may be disposed on a wiring layer. For example, the passivation layer 116 may be configured to cover the wiring layer in the display area AA. For example, the passivation layer 116 may be disposed on multiple signal lines TL, multiple first electrodes CE1, multiple contact electrodes CCE, and a third insulating layer 115c. For example, the passivation layer 116 may be disposed at the display area AA, the first non-display area NA1, and the second non-display area NA2. At least a portion of the passivation layer 116 disposed at the bend area BA may be removed. A portion of the passivation layer 116 covering multiple pad electrodes PE in the second non-display area NA2 may be removed. A portion of the passivation layer 116 covering multiple contact electrodes CCE in the display area AA may be removed. The passivation layer 116 covering the solder pattern SDP in the display area AA may be removed. The passivation layer 116 may cover the first electrode CE1. The passivation layer 116 may cover a portion of the upper surface of the exposed second conductive layer CE1b.

[0192] The passivation layer 116 is configured to expose at least a portion of the plurality of pad electrodes (PE), the plurality of contact electrodes (CCE), and the solder pattern (SDP), while covering the remaining area to reduce the penetration of moisture or impurities into the light-emitting device (ED). For example, the passivation layer 116 may be composed of a single layer or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx), but is not limited thereto. For example, the passivation layer 116 may be a protective layer, an insulating layer, or an inorganic insulating layer, but is not limited thereto. For example, the passivation layer 116 may include holes exposing the solder pattern (SDP) and holes exposing the contact electrodes (CCE).

[0193] In each of the plurality of sub-pixels, a light-emitting device ED may be disposed on a solder pattern SDP. A first light-emitting device 130 may be disposed in a first sub-pixel SP1. A second light-emitting device 140 may be disposed in a second sub-pixel SP2. A third light-emitting device 150 may be disposed in a third sub-pixel SP3.

[0194] Light-emitting devices (EDs) can be formed on silicon wafers by methods such as metal-organic chemical vapor deposition (MOCVD), chemical vapor deposition (CVD), plasma-enhanced chemical vapor deposition (PECVD), molecular beam epitaxy (MBE), hydride vapor phase epitaxy (HVPE), or sputtering, but are not limited to these methods.

[0195] Reference Figure 9 The first light-emitting device 130 may include an anode 134, a first semiconductor layer 131, an active layer 132, a second semiconductor layer 133, a cathode 135, and an encapsulation film 136, but is not limited thereto. For example, the encapsulation film 136 may not be included in the first light-emitting device 130.

[0196] The first semiconductor layer 131 may be disposed on the solder pattern SDP. The second semiconductor layer 133 may be disposed on the first semiconductor layer 131.

[0197] According to embodiments of the present invention, one of the first semiconductor layer 131 and the second semiconductor layer 133 may be implemented as a III-V or II-VI group compound semiconductor, and may be doped with impurities (or dopants). For example, one of the first semiconductor layer 131 and the second semiconductor layer 133 may be a semiconductor layer doped with n-type impurities, and the other may be a semiconductor layer doped with p-type impurities, but is not limited thereto. For example, one or more of the first semiconductor layer 131 and the second semiconductor layer 133 may be layers doped with n-type or p-type impurities in materials such as gallium nitride (GaN), gallium phosphide (GaP), gallium arsenide phosphide (GaAsP), aluminum gallium indium phosphide (AlGaInP), indium aluminum phosphide (InAlP), aluminum gallium nitride (AlGaN), aluminum indium nitride (AlInN), aluminum indium gallium nitride (AlInGaN), aluminum gallium arsenide (AlGaAs), or gallium arsenide (GaAs), but is not limited thereto. For example, n-type impurities can be silicon (Si), germanium (Ge), selenium (Se), carbon (C), tellurium (Te), or tin (Sn), but are not limited to these. For example, p-type impurities can be magnesium (Mg), zinc (Zn), calcium (Ca), strontium (Sr), barium (Ba), or beryllium (Be), but are not limited to these.

[0198] According to embodiments of the present invention, the first semiconductor layer 131 and the second semiconductor layer 133 may be a nitride semiconductor including n-type impurities and a nitride semiconductor including p-type impurities, respectively, but are not limited thereto. For example, the first semiconductor layer 131 may be a nitride semiconductor including p-type impurities, and the second semiconductor layer 133 may be a nitride semiconductor including n-type impurities, but are not limited thereto.

[0199] An active layer 132 may be disposed (or interposed) between a first semiconductor layer 131 and a second semiconductor layer 133. The active layer 132 may receive holes and electrons from the first semiconductor layer 131 and the second semiconductor layer 133 to emit light. For example, the active layer 132 may be configured as a single-well structure, a multi-well structure, a single quantum well structure, a multiple quantum well (MQW) structure, a quantum dot structure, and a quantum wire structure, but is not limited thereto. For example, the active layer 132 may be configured as indium gallium nitride (InGaN) or gallium nitride (GaN), but is not limited thereto.

[0200] According to another embodiment of the present invention, the active layer 132 may include a multi-quantum-well structure, which includes a well layer and a barrier layer having a higher bandgap than the well layer. For example, the active layer 132 may include an indium gallium nitride (InGaN) layer as the well layer and an aluminum gallium nitride (AlGaN) layer as the barrier layer, but is not limited thereto.

[0201] An anode 134 may be disposed (or interposed) between the first semiconductor layer 131 and the solder pattern SDP. The anode 134 may be electrically connected to a corresponding solder pattern SDP among a plurality of solder patterns SDPs. For example, the anode 134 may be configured to electrically connect the first semiconductor layer 131 and the first electrode CE1. The anode voltage output from the pixel driving circuit PD may be applied to the first semiconductor layer 131 via the signal line TL, the first electrode CE1, and the anode 134. For example, the anode 134 may be made of a conductive material capable of eutectic bonding with the solder pattern SDP, but is not limited thereto. For example, the anode 134 may be made of gold (Au), tin (Sn), tungsten (W), silicon (Si), silver (Ag), titanium (Ti), iridium (Ir), chromium (Cr), indium (In), zinc (Zn), lead (Pb), nickel (Ni), platinum (Pt), copper (Cu), or alloys thereof, but is not limited thereto.

[0202] A cathode 135 may be disposed on the second semiconductor layer 133. For example, the cathode 135 may be configured to electrically connect the second semiconductor layer 133 and the second electrode CE2. The cathode voltage output from the pixel driving circuit PD may be applied to the second semiconductor layer 133 through the contact electrode CCE, the second electrode CE2, and the cathode 135. The cathode 135 may be made of a transparent conductive material, such that light emitted from the light-emitting device ED can be directed towards the upper part of the light-emitting device ED, but is not limited thereto. For example, the cathode 135 may be made of a material such as indium tin oxide (ITO), indium zinc oxide (IZO), or indium gallium zinc oxide (IGZO), but is not limited thereto.

[0203] The encapsulation film 136 may be disposed on at least a portion of the first semiconductor layer 131, the active layer 132, the second semiconductor layer 133, the anode 134, and the cathode 135. For example, the encapsulation film 136 may surround at least a portion of the first semiconductor layer 131, the active layer 132, the second semiconductor layer 133, the anode 134, and the cathode 135.

[0204] The encapsulation film 136 can protect the first semiconductor layer 131, the active layer 132, and the second semiconductor layer 133. For example, the encapsulation film 136 can be disposed on the side surface (or lateral surface) of the first semiconductor layer 131, the side surface (or lateral surface) of the active layer 132, and the side surface (or lateral surface) of the second semiconductor layer 133.

[0205] The encapsulation film 136 may be disposed on at least a portion of the anode 134 and the cathode 135 (e.g., the edge portion (or peripheral portion or side) of the anode 134 and the edge portion (or peripheral portion or side) of the cathode 135). At least a portion of the anode 134 not covered by the encapsulation film 136 may be exposed, allowing the anode 134 and the solder pattern SDP to be connected. For example, at least a portion of the cathode 135 not covered by the encapsulation film 136 may be exposed, allowing the cathode 135 and the second electrode CE2 to be connected. For example, the encapsulation film 136 may be made of an insulating material such as silicon nitride (SiNx) or silicon oxide (SiOx), but is not limited thereto.

[0206] According to another embodiment of the invention, the encapsulation film 136 may have a structure in which reflective material is dispersed in a resin layer, but is not limited thereto. For example, the encapsulation film 136 may be manufactured as a reflector of various structures, but is not limited thereto. Light emitted from the active layer 132 can be reflected upward by the encapsulation film 136, thereby improving light extraction efficiency. For example, the encapsulation film 136 may be a reflective layer, but is not limited thereto.

[0207] According to embodiments of the present invention, the light-emitting device (ED) has been described as having a vertical structure, but is not limited thereto. For example, the ED may have a lateral structure or a flip-chip structure.

[0208] Although it has been referenced Figure 9 The first light-emitting device 130 has been described, but the second light-emitting device 140 and the third light-emitting device 150 may have substantially the same structure as the first light-emitting device 130. For example, the second light-emitting device 140 and the third light-emitting device 150 include a structure substantially the same as the first semiconductor layer 131, active layer 132, second semiconductor layer 133, anode 134, cathode 135 and encapsulation film 136 of the first light-emitting device 130, therefore, their repeated description is omitted.

[0209] As in Figure 8 and Figure 9 As can be seen, the display device 1000 according to an embodiment of the present invention may further include optical layers (or light diffusion layers) 117a, 117b and 117c.

[0210] Optical layers 117a, 117b, and 117c may be configured to surround a plurality of light-emitting devices ED in a display area AA. For example, optical layers 117a, 117b, and 117c may be configured to cover a plurality of light-emitting devices ED in a display area AA. For example, optical layers 117a and 117b may be configured on an insulating layer 115 to surround the side surface of each of the plurality of light-emitting devices ED and the side surface of each of the plurality of embankments BNK.

[0211] According to an embodiment of the present invention, a first optical layer 117a may be configured to surround a plurality of light-emitting devices ED in a display area AA. For example, the first optical layer 117a may be configured to cover the side surfaces of a plurality of light-emitting devices ED and the side surfaces of a plurality of dams BNK in a region of a plurality of sub-pixels. For example, the first optical layer 117a may cover a portion of a passivation layer 116. For example, the first optical layer 117a may cover the second electrode CE2, a portion of the passivation layer 116, and the region between the plurality of light-emitting devices ED. The first optical layer 117a may be disposed or covered between the plurality of light-emitting devices ED included in a pixel PX and between the plurality of dams BNK. For example, the first optical layer 117a may extend along the row direction of the display area AA, and the plurality of first optical layers 117a may be spaced apart along the column direction (or the second direction Y) of the display area AA. For example, the first optical layer 117a may be configured to surround the side portions of each of the plurality of light-emitting devices ED and the plurality of dams BNK between the insulating layer 115 and the second electrode CE2. For example, the first optical layer 117a may be configured to surround the side of each of the light-emitting device ED and the embankment BNK between the passivation layer 116 and the second electrode CE2, but is not limited thereto. For example, the first optical layer 117a may be a diffusion layer or a sidewall diffusion layer, but is not limited thereto.

[0212] The first optical layer 117a may include, but is not limited to, an organic insulating material in which fine particles 117ap are dispersed. For example, the first optical layer 117a may be composed of a siloxane in which fine metal particles 117ap, such as titanium dioxide (TiO2) particles, are dispersed, but is not limited to. Light from the multiple light-emitting devices (EDs) can be scattered and emitted to the outside of the display panel 100 by the fine particles 117ap dispersed in the first optical layer 117a. Therefore, the first optical layer 117a can improve the extraction efficiency of light emitted from the multiple light-emitting devices (EDs).

[0213] According to an embodiment of the present invention, the first optical layer 117a may be disposed at each of the plurality of pixels PX, or may be disposed together at some pixels PX located in the same row of the display area AA, but is not limited thereto. For example, the first optical layer 117a may be disposed at each of the plurality of pixels PX, or a first optical layer 117a may be configured to share the plurality of pixels PX. As another embodiment of the present invention, each of the plurality of sub-pixels may separately include the first optical layer 117a, but is not limited thereto.

[0214] According to an embodiment of the present invention, the second optical layer 117b may be disposed on the passivation layer 116 in the display area AA. For example, the second optical layer 117b may be disposed around the side of the first optical layer 117a. For example, the second optical layer 117b may be in contact with the side surface of the first optical layer 117a. For example, the second optical layer 117b may be disposed in the region (or non-light-emitting region) between multiple pixels PX, but is not limited thereto. For example, the second optical layer 117b may be a diffusion layer, a diffusion layer window, or a window diffusion layer, etc., but is not limited thereto.

[0215] The second optical layer 117b may be made of an organic insulating material, but is not limited thereto. The second optical layer 117b may be made of the same material as the first optical layer 117a, but is not limited thereto. For example, the first optical layer 117a may include fine particles, and the second optical layer 117b may not include fine particles. For example, the second optical layer 117b may be made of a siloxane, but is not limited thereto.

[0216] According to an embodiment of the present invention, the thickness of the first optical layer 117a may be less than the thickness of the second optical layer 117b, but is not limited thereto. For example, the upper surface of the second optical layer 117b may be formed as a flat surface, and the upper surface of the first optical layer 117a may be formed as a concave curved surface. Therefore, when viewed in a plan view, the area where the first optical layer 117a is disposed may include a recess that is further recessed inward compared to the upper surface of the second optical layer 117b.

[0217] According to embodiments of the present invention, the second electrode CE2 may be disposed on the first optical layer 117a and the second optical layer 117b. For example, the second electrode CE2 may be electrically connected to a plurality of contact electrodes CCE through contact holes in the second optical layer 117b. For example, the second electrode CE2 may be disposed on a plurality of light-emitting devices ED. For example, the second electrode CE2 may include a transparent conductive oxide, such as indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto. For example, the second electrode CE2 may be configured to contact or directly contact the cathode 135. For example, the second electrode CE2 may overlap the entire first optical layer 117a and may overlap a portion of the second optical layer 117b. For example, the second electrode CE2 may be electrically connected to the contact electrodes CCE through the second optical layer 117b. For example, the second electrode CE2 may be electrically connected to the contact electrodes CCE through contact holes formed in the second optical layer 117b.

[0218] The second electrode CE2 may extend continuously along the row direction (or the first direction X) of the substrate 110. Therefore, the second electrode CE2 may be connected to a plurality of light-emitting devices ED in each of the plurality of pixels PX arranged along the row direction (or the first direction X) of the substrate 110.

[0219] According to an embodiment of the present invention, the second electrode CE2 may extend continuously above the first optical layer 117a, the second optical layer 117b, and the light-emitting device ED. The region where the first optical layer 117a is disposed may include a recess that is further recessed inward compared to the upper surface of the second optical layer 117b. Therefore, a first portion of the second electrode CE2 disposed on the first optical layer 117a may be disposed along the recess, and thus may be disposed at a lower position than a second portion of the second electrode CE2 disposed on the second optical layer 117b. For example, the thickness of the first optical layer 117a may gradually decrease from the second optical layer 117b toward the center of the first optical layer 117a to facilitate electrical connection (or contact) between each of the first light-emitting device 130, the second light-emitting device 140, and the third light-emitting device 150 and the second electrode CE2.

[0220] A third optical layer 117c may be disposed on the second electrode CE2. The third optical layer 117c may be disposed on the second electrode CE2 and overlap with the plurality of light-emitting devices ED and the first optical layer 117a. For example, the third optical layer 117c may be configured not to overlap with the second optical layer 117b. Since the third optical layer 117c is disposed on the second electrode CE2 and the plurality of light-emitting devices ED, stain mura that may appear in some of the plurality of light-emitting devices ED can be improved. For example, when the plurality of light-emitting devices ED are transferred onto the substrate 110 of the display panel 100, areas with uneven spacing (or pitch) between the plurality of light-emitting devices ED may appear due to process variations, etc. When the spacing between the plurality of light-emitting devices ED is uneven, the light-emitting area of ​​each of the plurality of light-emitting devices ED can be formed non-uniformly, and therefore, stain mura can be visually perceived by the user. Therefore, since the third optical layer 117c for uniformly diffusing light is additionally disposed on the upper part of the plurality of light-emitting devices ED, the visual perception of stain mura from some of the light-emitting devices ED can be reduced or prevented. Therefore, since the light emitted from the multiple light-emitting devices (EDs) is uniformly diffused by the third optical layer 117c and extracted to the outside of the display panel 100, the brightness uniformity of the display device can be improved.

[0221] The third optical layer 117c may be composed of an organic insulating material in which fine particles 117cp are dispersed, but is not limited thereto. For example, the third optical layer 117c may be composed of a siloxane in which fine metal particles 117cp, such as titanium dioxide (TiO2) particles, are dispersed, but is not limited thereto. For example, the third optical layer 117c may be composed of the same material as the first optical layer 117a, but is not limited thereto. For example, the third optical layer 117c may be a diffusion layer or a top diffusion layer, but is not limited thereto.

[0222] According to an embodiment of the present invention, light from multiple light-emitting devices (EDs) can be scattered and emitted to the outside of the display panel 100 by fine particles 117cp dispersed in the third optical layer 117c. The third optical layer 117c can uniformly mix (or diffuse) the light emitted from the multiple light-emitting devices (EDs), thereby further improving the brightness uniformity of the display device. In addition, the light extraction efficiency of the display device can be improved by the light scattered by the fine particles 117cp, thus enabling the display device to be driven with low power.

[0223] In the display area AA, the black matrix BM can be disposed on the second electrode CE2, the first optical layer 117a, the second optical layer 117b and the third optical layer 117c.

[0224] The black matrix BM can be configured to include multiple openings (or light-transmitting portions) overlapping each of the plurality of light-emitting devices ED. For example, the black matrix BM can be formed (or configured) to cover the remaining display area except for the area overlapping each of the plurality of light-emitting devices ED. For example, the black matrix BM can fill the contact holes of the second optical layer 117b. Since the black matrix BM is configured to cover the display area AA, color mixing of light from multiple sub-pixels and external light reflection can be reduced. For example, the black matrix BM can also be disposed within the contact holes in which the second electrode CE2 and the contact electrode CCE are connected, and light leakage between multiple adjacent sub-pixels can be prevented. For example, the black matrix BM can be made of an opaque material, but is not limited to this. For example, the black matrix BM can be an organic insulating material with added black pigment or black dye, but is not limited to this.

[0225] Reference Figure 8 The display device 1000 according to an embodiment of the present invention may further include a cover layer 118.

[0226] The cover layer 118 can be configured to cover the display area AA. The cover layer 118 can be configured to cover the second electrode (or common electrode) CE2 disposed (or configured) in the display area AA. For example, the cover layer 118 can be disposed on the black matrix BM in the display area AA. For example, the black matrix BM can be disposed (or interposed) between the cover layer 118 and the optical layers 117a, 117b and 117c.

[0227] The capping layer 118 can be configured to protect multiple light-emitting devices (EDs). For example, a component (or layer) disposed between the substrate 110 and the capping layer 118 can be protected by the substrate 110 and the capping layer 118. For example, the capping layer 118 can be made of organic or inorganic insulating materials. For example, the capping layer 118 can be configured with photoresist, polyimide, or optical acrylic-based materials, but is not limited thereto. For example, the capping layer 118 can be an outer coating, a protective layer, or an insulating layer, but is not limited thereto.

[0228] According to an embodiment of the present invention, the touch panel 200 may be disposed (or configured) on the cover layer 118. The polarizing layer 180 may be disposed on the touch panel 200 using a first adhesive layer 181. The cover member 120 may be disposed on the polarizing layer 180 using a second adhesive layer 185.

[0229] According to another embodiment of the invention, the touch panel 200 may be disposed (or inserted) between the polarization layer 180 and the cover member 120, but is not limited thereto. For example, the touch panel 200 may also be connected (or attached) to the rear surface of the cover member 120.

[0230] According to another embodiment of the present invention, the touch panel 200 may be directly formed (or configured) on the cover layer 118. For example, the touch panel 200 may include a touch electrode layer, and the touch electrode layer may be directly formed (or configured) on the upper surface of the cover layer 118. The polarization layer 180 may be disposed on the touch electrode layer of the touch panel 200 using a first adhesive layer 181. The cover member 120 may be disposed on the polarization layer 180 using a second adhesive layer 185. For example, each of the first adhesive layer 181 and the second adhesive layer 185 may include, but is not limited to, an optically transparent adhesive, an optically transparent resin, or a pressure-sensitive adhesive.

[0231] According to an embodiment of the present invention, a plurality of pad electrodes PE may be disposed on a third insulating layer 115c in a second non-display area NA2. For example, at least a portion of the plurality of pad electrodes PE may be exposed and not covered by the passivation layer 116. For example, the plurality of pad electrodes PE may be electrically connected to the second-fourth connection 122d through contact holes in the third insulating layer 115c.

[0232] An adhesive film ACF can be disposed on multiple pad electrodes PE. The adhesive film ACF can be, but is not limited to, an adhesive layer in which conductive balls are dispersed on an insulating material. When heat and / or pressure are applied to the adhesive film ACF, the conductive balls can be electrically connected at the portions where heat and / or pressure are applied, thereby acquiring conductive properties. By disposing the adhesive film ACF between the multiple pad electrodes PE and the flexible circuit board (or flexible film) 310, the flexible circuit board (or flexible film) 310 can be attached or bonded to the multiple pad electrodes PE. For example, the adhesive film ACF can be a conductive adhesive material, a conductive adhesive film, or an anisotropic conductive film, but is not limited to these.

[0233] The flexible circuit board 310 can be placed on the adhesive film ACF. The flexible circuit board 310 can be electrically connected to multiple pad electrodes PE through the adhesive film ACF. Therefore, signals output from the flexible circuit board 310 and the printed circuit board 330 can be transmitted to the pixel driving circuit PD in the display area AA through the wiring layer. For example, the signal output from the printed circuit board 330 can be transmitted to the pixel driving circuit PD in the display area AA through the flexible circuit board 310, the multiple pad electrodes PE, the second-fourth connection 122d, the second-third connection 122c, the second-second connection 122b, and the second-first connection 122a.

[0234] Figure 10 This is a diagram illustrating the driving timing of the display panel and touch panel according to an embodiment of the present invention.

[0235] Reference Figure 10 The display device according to an embodiment of the present invention can be driven according to the display period Display_Tn and the touch period Touch_Tn. The display period Display_Tn can be a period for displaying an image on the display panel 100, and the touch period Touch_Tn can be a period for sensing a touch on the touch panel 200. For example, the display period Display_Tn and the touch period Touch_Tn can be the same. That is, the display panel 100 and the touch panel 200 can be driven simultaneously. Therefore, the display device can display an image on the screen through the display panel 100, while simultaneously sensing the user's touch through the touch panel 200.

[0236] Figure 11 This is a plan view showing the electrode structure of a touch panel according to an embodiment of the present invention. Figure 12 yes Figure 11 An enlarged view of "A" shown. Figure 13 It is along Figure 12 The cross-sectional view taken from line II-II' is shown.

[0237] Reference Figures 11 to 13 According to an embodiment of the present invention, the touch panel 200 may include first to nth touch driving lines TX1 to TXn and first to mth touch sensing lines RX1 to RXm.

[0238] The first to nth touch driving lines TX1 to TXn can be touch driving lines used to sense user touch. For example, the first to nth touch driving lines TX1 to TXn can be multiple first touch lines.

[0239] The first to nth touch drive lines TX1 to TXn are parallel to the first direction X and may be spaced apart from each other along the second direction Y. For example, each of the first to nth touch drive lines TX1 to TXn may be set (or configured) to overlap with a row (or horizontal line) of the display panel or with one or more second electrodes CE2.

[0240] Each of the first to nth touch driving lines TX1 to TXn according to the embodiment may include first to ith (i is a natural number greater than or equal to 4) touch driving electrodes TDE1 to TDEi and a plurality of bridging electrodes BE.

[0241] The first touch driving electrode TDE1 may be disposed on one side (or one end) of each of the first to nth touch driving lines TX1 to TXn, and the i-th touch driving electrode TDEi may be disposed on the other side (or the other end) of each of the first to nth touch driving lines TX1 to TXn. The first touch driving electrode TDE1 may be disposed (or configured) on a first edge portion (e.g., the left peripheral portion) of the touch panel 200, and the i-th touch driving electrode TDEi may be disposed (or configured) on a second edge portion (e.g., the right peripheral portion) opposite to the first edge portion of the touch panel 200. The second to (i-1)th touch driving electrodes TDE2 to TDEi-1 may be disposed (or configured) with a predetermined interval between the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi along a first direction X. Therefore, each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may be an edge driving electrode, and each of the second to (i-1)th touch driving electrodes TDE2 to TDEi-1 may be an intermediate driving electrode.

[0242] Depending on the electrode arrangement structure (or electrode arrangement position), some of the first to i-th touch driving electrodes TDE1 to TDEi may have different dimensions. For example, the size of each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may be smaller than the size of each of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1.

[0243] Depending on the electrode arrangement structure (or electrode arrangement position), some of the first to i-th touch driving electrodes TDE1 to TDEi may have different shapes and different sizes. For example, each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may have a shape different from that of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1, and may have a size smaller than that of each of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1.

[0244] According to the implementation, each of the second to (i-1)th touch driving electrodes TDE2 to TDEi-1 may have a rectangular or rhomboid shape. Each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may have a triangular shape, but is not limited thereto. For example, each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may have a triangular shape with a size half the size of each of the second to (i-1)th touch driving electrodes TDE2 to TDEi-1, but is not limited thereto.

[0245] According to another embodiment, when each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi has a smaller size than each of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1, each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may have the same shape or a different shape than each of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1. For example, each of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1 has a rectangular or rhomboid shape, and each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi may have a triangular or rectangular (or pentagonal) shape, the size of which is smaller than the size of each of the second to (i-1)-th touch driving electrodes TDE2 to TDEi-1.

[0246] Multiple bridging electrodes BE can be configured to connect the first to the i-th touch driving electrodes TDE1 to TDEi, or can be configured to connect between the first to the i-th touch driving electrodes TDE1 to TDEi. The multiple bridging electrodes BE can be configured to be on different layers from the first to the i-th touch driving electrodes TDE1 to TDEi. The multiple bridging electrodes BE can be configured to be electrically connected to two adjacent touch driving electrodes of the first to the i-th touch driving electrodes TDE1 to TDEi along the first direction X. For example, the touch driving electrodes TDE1 to TDEi and the bridging electrodes BE can be alternately and repeatedly configured along the first direction X and electrically connected to each other. Therefore, the first to the i-th touch driving electrodes TDE1 to TDEi are electrically connected to each other through the multiple bridging electrodes BE, thereby forming a touch driving line TX1 to TXn.

[0247] The first to m-th touch sensing lines RX1 to RXm can be touch sensing lines used to sense user touches. For example, the first to m-th touch sensing lines RX1 to RXm can be multiple second touch lines.

[0248] Each of the first to m-th touch sensing lines RX1 to RXm can be configured to form mutual capacitance with adjacent touch driving lines TX1 to TXn from the first to n-th touch driving lines. The first to m-th touch sensing lines RX1 to RXm can be parallel to the second direction Y and can be spaced apart from each other along the first direction X. For example, each of the first to m-th touch sensing lines RX1 to RXm can be set (or configured) to intersect with the first to n-th touch driving lines TX1 to TXn. For example, the first touch sensing line RX1 can be set (or configured) at a first edge portion of the touch panel 200, and the m-th touch sensing line RXm can be set (or configured) at a second edge portion of the touch panel 200. For example, the first touch sensing line RX1 and the m-th touch sensing line RXm can be edge sensing lines, and the second to (m-1)-th touch sensing lines RX2 to RXm-1 can be intermediate sensing lines.

[0249] Each of the first to m-th touch sensing lines RX1 to RXm according to the embodiment may include first to j-th (where j is a natural number greater than or equal to 4) touch sensing electrodes TSE1 to TSEj and multiple electrode connection lines ECL.

[0250] The first touch sensing electrode TSE1 may be disposed at one side (or one end) of each of the first to m-th touch sensing lines RX1 to RXm, and the j-th touch sensing electrode TSEj may be disposed at the other side (or the other end) of each of the first to m-th touch sensing lines RX1 to RXm. The first touch sensing electrode TSE1 may be disposed (or configured) at the third edge portion (e.g., the upper peripheral portion) of the touch panel 200, and the j-th touch sensing electrode TSEj may be disposed (or configured) at the fourth edge portion (e.g., the lower peripheral portion) opposite to the third peripheral portion of the touch panel 200. The second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1 may be disposed (or configured) with a predetermined interval between the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj along the second direction Y. Therefore, each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj can be an edge sensing electrode, and each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1 can be an intermediate sensing electrode.

[0251] Depending on the electrode arrangement structure (or electrode arrangement position), some of the first to j-th touch sensing electrodes TSE1 to TSEj may have different dimensions. For example, each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj may have a smaller size than each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1.

[0252] Depending on the electrode arrangement structure (or electrode arrangement position), some of the first to j-th touch sensing electrodes TSE1 to TSEj may have different shapes and different sizes. Each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj may have a shape different from the shape of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1, and may have a size smaller than the size of each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1.

[0253] According to the implementation, each of the second to (j-1)th touch sensing electrodes TSE2 to TSEj-1 may have a rectangular or rhomboid shape. Each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj may have a triangular shape, but is not limited thereto. For example, each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj may have a triangular shape with a size half the size of each of the second to (j-1)th touch sensing electrodes TSE2 to TSEj-1, but is not limited thereto.

[0254] According to another embodiment, when the size of each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj is smaller than the size of each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1, each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj may have the same shape or a different shape than each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1. For example, each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1 may have a rectangular shape or a rhombus shape, and each of the first touch sensing electrode TSE1 and the j-th touch sensing electrode TSEj may have a triangular shape or a rectangular shape (or a pentagonal shape), the size of which is smaller than the size of each of the second to (j-1)-th touch sensing electrodes TSE2 to TSEj-1.

[0255] The first to j-th touch sensing electrodes TSE1 to TSEj can be set (or configured) between the first to i-th touch driving electrodes TDE1 to TDEi. Therefore, the touch driving electrodes TDE1 to TDEi and the touch sensing electrodes TSE1 to TSEj can be alternately set (or configured) along each of the first direction X and the second direction Y.

[0256] Multiple electrode connection lines (ECLs) can be configured to connect the first to j-th touch sensing electrodes TSE1 to TSEj, or can be configured to connect between the first to j-th touch sensing electrodes TSE1 to TSEj. The multiple electrode connection lines (ECLs) can be disposed (or configured) on the same layer as the first to j-th touch sensing electrodes TSE1 to TSEj. The multiple electrode connection lines (ECLs) can be configured to be electrically connected to two adjacent touch sensing electrodes among the first to j-th touch sensing electrodes TSE1 to TSEj along the second direction Y. For example, j touch sensing electrodes TSE1 to TSEj and j-1 electrode connection lines (ECLs) can be alternately and repeatedly disposed (or configured) and electrically connected to each other along the second direction Y. Therefore, the first to j-th touch sensing electrodes TSE1 to TSEj are electrically connected to each other through multiple electrode connection lines (ECLs), thereby forming a touch sensing line RX1 to RXm. For example, each of the multiple electrode connection lines ECL can be an extension (or extension line) or a protrusion (or protrusion line) of the first to j-th touch sensing electrodes TSE1 to TSEj.

[0257] Reference Figure 13 The touch panel 200 according to an embodiment of the present invention may include a touch electrode layer 210 and a passivation layer 230.

[0258] The touch electrode layer 210 may be formed (or configured) directly on the cover layer 118 of the display panel, but is not limited thereto. For example, a touch buffer layer may be disposed (or inserted) between the touch electrode layer 210 and the cover layer 118. In this case, the touch electrode layer 210 may be formed (or configured) directly on the touch buffer layer covering the cover layer 118.

[0259] According to the embodiments, the touch panel 200 or touch electrode layer 210 may include a first touch electrode layer, a touch insulating layer 213, and a second touch electrode layer.

[0260] A first touch electrode layer may be formed (or configured) on the cover layer 118 (or touch buffer layer). A touch insulating layer 213 may be formed (or configured) to cover the first touch electrode layer. The touch insulating layer 213 may be made of an inorganic insulating material or an organic insulating material. A second touch electrode layer may be formed (or configured) on the touch insulating layer 213.

[0261] The first to ith touch driving electrodes TDE1 to TDEi of each of the first to nth touch driving lines TX1 to TXn can be formed (or configured) on / at any of the first touch electrode layer and the second touch electrode layer. The plurality of bridging electrodes BE of each of the first to nth touch driving lines TX1 to TXn can be formed (or configured) on different layers from the first to ith touch driving electrodes TDE1 to TDEi of the first touch electrode layer and the second touch electrode layer. For example, each of the plurality of bridging electrodes BE of each of the first to nth touch driving lines TX1 to TXn can be configured to be electrically connected to two adjacent touch driving electrodes of the first to ith touch driving electrodes TDE1 to TDEi through a via VH disposed in the touch insulating layer 213.

[0262] Each of the first to the m-th touch sensing lines RX1 to RXm, including the first to the j-th touch sensing electrodes TSE1 to TSEj and multiple electrode connection lines ECL, can be formed (or configured) on the same layer as the first to the i-th touch driving electrodes TDE1 to TDEi.

[0263] According to an embodiment, a plurality of bridging electrodes BE for each of the first to nth touch driving lines TX1 to TXn can be formed (or configured) in the first touch electrode layer, and the first to i-th touch driving electrodes TDE1 to TDEi and the first to m-th touch sensing lines RX1 to RXm for each of the first to nth touch driving lines TX1 to TXn can be formed (or configured) in the second touch electrode layer, but is not limited thereto. For example, a plurality of bridging electrodes BE for each of the first to nth touch driving lines TX1 to TXn can be formed (or configured) in the second touch electrode layer, and the first to i-th touch driving electrodes TDE1 to TDEi and the first to m-th touch sensing lines RX1 to RXm for each of the first to nth touch driving lines TX1 to TXn can be formed (or configured) in the first touch electrode layer.

[0264] According to the implementation, the first to nth touch driving lines TX1 to TXn and the first to mth touch sensing lines RX1 to RXm can be made of a transparent conductive material or the same material as the plurality of second electrodes CE2.

[0265] Passivation layer 230 may be formed (or configured) to cover touch electrode layer 210. Passivation layer 230 may be made of organic insulating material. Passivation layer 230 may be a touch protective layer. Passivation layer 230 may be attached (or bonded) to the rear surface of polarization layer 180 via first adhesive layer 181. For example, polarization layer 180 may be attached to the upper surface of passivation layer 230 using first adhesive layer 181.

[0266] According to another embodiment of the present invention, each of the first to nth touch driving lines TX1 to TXn and the first to mth touch sensing lines RX1 to RXm may include a mesh structure. In order to minimize (or prevent) the reduction in light transmittance caused by the touch panel 200 (or touch electrode layer 210), each of the first to nth touch driving lines TX1 to TXn and the first to mth touch sensing lines RX1 to RXm may include a mesh structure with mesh lines ML.

[0267] The grid lines ML can be formed (or configured) to have a constant (or fine) linewidth W1. The grid lines ML overlap with the black matrix BM and may include a linewidth W1 smaller than the linewidth W2 of the black matrix BM. For example, some grid lines ML that overlap with the black matrix BMa disposed between the plurality of light-emitting devices 130, 140, and 150 may have a linewidth W1 smaller than the linewidth W2 of the black matrix BMa. Therefore, since some grid lines ML do not overlap with openings (which overlap with each of the plurality of light-emitting devices ED (or the plurality of first to third light-emitting devices 130, 140, and 150), the reduction in light transmittance caused by the grid lines ML (or touch electrode layer 210) can be minimized (or prevented).

[0268] According to an implementation, the grid line ML may include multiple first grid lines parallel to a first direction X and multiple second grid lines parallel to a second direction Y and intersecting with the first grid lines. The multiple first grid lines and multiple second grid lines may be formed (or configured) on the same layer. The line width W1 of each of the multiple first grid lines and multiple second grid lines may be smaller than the line width W2 of the black matrix BMa.

[0269] A grid line ML with a linewidth W1 smaller than the black matrix BMa does not affect light transmittance and can therefore be formed from a metallic material with high conductivity. For example, the grid line ML can be formed from alloys of gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), silver (Ag), and magnesium (Mg), or alloys thereof, but is not limited thereto.

[0270] In reference Figure 13In the description, the touch electrode layer 210, including the first to nth touch driving lines TX1 to TXn and the first to mth touch sensing lines RX1 to RXm, is directly formed (or configured) on the upper surface of the cover layer 118, but is not limited thereto. For example, a touch panel 200 according to another embodiment of the present invention may include a first transparent film, a touch electrode layer 210 including the first to nth touch driving lines TX1 to TXn and the first to mth touch sensing lines RX1 to RXm formed (or configured) on the first transparent film, and a second transparent film covering the touch electrode layer 210. The touch panel 200 including the first transparent film, the touch electrode layer 210 and the second transparent film can be attached to the upper surface of the cover layer 118 by using an adhesive layer. For example, the first transparent film of the touch panel 200 can be attached to the cover layer 118 by an adhesive layer. The polarizing layer 180 can be attached to the first transparent film of the touch panel 200 by using a first adhesive layer 181.

[0271] Reference Figures 11 to 13 In a display device according to an embodiment of the present invention, a touch auxiliary line 400 may be formed (or configured) on a touch panel 200 (or touch electrode layer 210). The touch auxiliary line 400 may be spaced apart from the ends of each of the first to nth touch driving lines TX1 to TXn, and may be configured to form a mutual capacitance Cm_edge with at least a portion of the first to mth touch sensing lines RX1 to RXm. The touch auxiliary line 400 may be formed (or configured) on the touch panel 200 (or touch electrode layer 210) parallel to the first to mth touch sensing lines RX1 to RXm.

[0272] The touch assist line 400 can be set (or configured) to increase the total capacitance of the first touch sensing line RX1 and the m-th touch sensing line RXm, which are set (or configured) at the edge portion of the screen. Therefore, since the capacitance between each of the first touch sensing line RX1 and the m-th touch sensing line RXm set (or configured) at the edge portion of the screen is increased (or enhanced), the touch sensitivity (or touch performance) at the edge portion of the screen can be improved, and non-uniformity of touch sensitivity (or touch performance) can be prevented or minimized.

[0273] Touch auxiliary lines 400 may be formed (or configured) on the touch panel 200 (or touch electrode layer 210) and spaced apart from the ends TXe of each of the first touch driving electrodes TDE1 and the i-th touch driving electrode TDEi that constitute (or form) each of the first to n-th touch driving lines TX1 to TXn. For example, touch auxiliary lines 400 may be disposed (or configured) on the same layer as the first touch sensing line RX1 and the m-th touch sensing line RXm, or may be disposed on the same layer as a plurality of bridging electrodes BE.

[0274] The touch auxiliary line 400 can be formed (or configured) to compensate for the deviation between the capacitance (or first capacitance) Cm1 of the edge sensing line (or edge sensing electrode) RX1 or RXm and the capacitance (or second capacitance) Cm2 of the intermediate sensing lines (or intermediate sensing electrodes) RX2 to RXm-1. For example, the touch auxiliary line 400 can form a mutual capacitance Cm_edge with the edge sensing lines RX1 and RXm. For ease of description, in the following text, the mutual capacitance (or auxiliary capacitance) formed between the touch auxiliary line 400 and the edge sensing lines RX1 and RXm can be referred to as the edge capacitance Cm_edge.

[0275] The edge capacitance Cm_edge formed between the touch auxiliary line 400 and the edge sensing lines RX1 and RXm can be connected in parallel with the first capacitance Cm1 to increase the first capacitance Cm1. For example, the touch auxiliary line 400 can be formed (or configured) such that the edge capacitance Cm_edge corresponds to the deviation between the first capacitance Cm1 and the second capacitance Cm2.

[0276] For example, in the first to nth touch driving lines TX1 to TXn, since the size of the first touch driving electrode TDE1 is different from the size of the second touch driving electrode TDE2, the first capacitor Cm1 formed in the first touch sensing line RX1 (or the mth touch sensing line RXm) may be different from the second capacitor Cm2 formed in the second touch sensing line RX2.

[0277] For example, the first capacitor Cm1 formed in the first touch sensing line RX1 can be the sum of the first-1 capacitor C11 between the first touch sensing electrode TSE1 and the first touch driving electrode TDE1, the first-2 capacitor C12 between the first touch sensing electrode TSE1 and the second touch driving electrode TDE2, the first-3 capacitor C13 between the second touch sensing electrode TSE2 and the first touch driving electrode TDE1, and the first-4 capacitor C14 between the second touch sensing electrode TSE2 and the second touch driving electrode TDE2, that is, Cm1 = C11 + C12 + C13 + C14.

[0278] For example, the second capacitor Cm2 formed in the second touch sensing line RX2 can be the sum of the second-1 capacitor C21 between the first touch sensing electrode TSE1 and the second touch driving electrode TDE2, the second-2 capacitor C22 between the first touch sensing electrode TSE1 and the third touch driving electrode TDE3, the second-3 capacitor C23 between the second touch sensing electrode TSE2 and the second touch driving electrode TDE2, and the second-4 capacitor C24 between the second touch sensing electrode TSE2 and the third touch driving electrode TDE3, that is, Cm2 = C21 + C22 + C23 + C24.

[0279] For example, when the touch auxiliary line 400 is not set, the size of the first touch driving electrode TDE1, which has a triangular shape (or a rectangular shape), is smaller than the size of each of the second touch driving electrode TDE2 and the third touch driving electrode TDE3, which have a rhomboid shape (or a rectangular shape). Therefore, the first capacitor Cm1 can be smaller than the second capacitor Cm2.

[0280] In an embodiment of the present invention, when the touch auxiliary line 400 is provided, the edge capacitor Cm_edge is formed in parallel with the first capacitor Cm1 between the touch auxiliary line 400 and the first touch sensing line RX1 (or the m-th touch sensing line RXm). Therefore, since the edge capacitor Cm_edge formed by the touch auxiliary line 400 is added to the first capacitor Cm1, the total capacitance Cm1+Cm_edge formed in the first touch sensing line RX1 can be the same as or similar to the second capacitor Cm2 formed in the second touch sensing line RX2.

[0281] The touch assist line 400 according to an embodiment of the present invention may include a first touch assist line 410 and a second touch assist line 420.

[0282] The first touch auxiliary line 410 may be disposed (or configured) at a first edge portion of the touch panel 200 and adjacent to or parallel to the first touch driving electrode TDE1 of each of the first to nth touch driving lines TX1 to TXn. For example, the first touch auxiliary line 410 may be disposed (or configured) at a first edge portion of the touch panel 200 and parallel to the second direction Y. The first touch auxiliary line 410 may be adjacent to or parallel to each of the first touch driving electrodes TDE1 constituting each of the first to nth touch driving lines TX1 to TXn.

[0283] The first touch auxiliary line 410 can be configured to form an edge capacitance Cm_edge with the first touch sensing line RX1. For example, the first touch auxiliary line 410 can form an edge capacitance Cm_edge with each of the first to j-th touch sensing electrodes TSE1 to TSEj of the first touch sensing line RX1. For example, the first touch auxiliary line 410 can jointly form an edge capacitance Cm_edge with the first to j-th touch sensing electrodes TSE1 to TSEj of the first touch sensing line RX1. Therefore, since the edge capacitance Cm_edge is formed between the first touch auxiliary line 410 and the first touch sensing line RX1, the mutual capacitance between the first touch sensing line RX1 and the first to n-th touch driving lines TX1 to TXn can be increased. Therefore, the first touch auxiliary line 410 can improve the touch sensitivity (or touch performance) at the first edge portion of the touch panel 200.

[0284] The second touch auxiliary line 420 can be configured to form an edge capacitance Cm_edge with the m-th touch sensing line RXm. The second touch auxiliary line 420 can be configured to be adjacent to the i-th touch driving electrode TDEi of each of the first to n-th touch driving lines TX1 to TXn. For example, the second touch auxiliary line 420 can form an edge capacitance Cm_edge with each of the first to j-th touch sensing electrodes TSE1 to TSEj of the m-th touch sensing line RXm. For example, the second touch auxiliary line 420 can jointly form an edge capacitance Cm_edge with the first to j-th touch sensing electrodes TSE1 to TSEj of the m-th touch sensing line RXm. Therefore, since the edge capacitance Cm_edge is formed between the second touch auxiliary line 420 and the m-th touch sensing line RXm, the mutual capacitance between the m-th touch sensing line RXm and the first to n-th touch driving lines TX1 to TXn can be increased. Therefore, the second touch auxiliary line 420 can improve the touch sensitivity (or touch performance) at the second edge portion of the touch panel 200.

[0285] Figure 14 This is a diagram showing the output signal of a touch driving circuit according to an embodiment of the present invention.

[0286] Reference Figure 11 , 12 According to embodiments of the present invention, the touch driving circuit 390 can be electrically connected to the first to nth touch driving lines TX1 to TXn, the first to mth touch sensing lines RX1 to RXm, and the touch auxiliary line 400 of the touch panel 200. The touch driving circuit 390 can be configured to provide a touch driving signal TDS to each of the first to nth touch driving lines TX1 to TXn based on a touch synchronization signal Tsync, and to provide an auxiliary driving signal ADS synchronized with the touch driving signal TDS to the touch auxiliary line 400.

[0287] The touch driving circuit 390 according to an embodiment of the present invention may include a touch driving unit 391.

[0288] The touch driving unit 391 can be configured to sequentially supply a touch driving signal TDS to each of the first to nth touch driving lines TX1 to TXn based on a touch synchronization signal Tsync, and to supply an auxiliary driving signal ADS synchronized with the touch driving signal TDS to the touch auxiliary line 400. For example, the touch driving unit 391 can generate a touch driving signal TDS and an auxiliary driving signal ADS having one or more pulse signals PS using a pulse width modulation method, and can sequentially supply the touch driving signal TDS to each of the first to nth touch driving lines TX1 to TXn based on the touch synchronization signal Tsync, and can repeatedly supply the auxiliary driving signal ADS synchronized with each of the touch driving signals TDS sequentially supplied to each of the first to nth touch driving lines TX1 to TXn to the touch auxiliary line 400.

[0289] Each of the touch drive signal TDS and the auxiliary drive signal ADS may include one or more pulse signals PS having the same phase and the same pulse width. According to the embodiment, each of the touch drive signal TDS and the auxiliary drive signal ADS may include one or more pulse signals PS having the same phase, the same voltage level VL1 (or the same amplitude), and the same pulse width, but is not limited thereto. For example, the phase, voltage level VL1 (or voltage amplitude), and pulse width of each of the one or more pulse signals PS of the touch drive signal TDS and the one or more pulse signals PS of the auxiliary drive signal ADS may be the same as each other, but is not limited thereto. For example, when the total capacitance Cm1+Cm_edge formed on the edge sensing lines RX1 and RXm is the same as or similar to the second capacitance Cm2 formed on the middle sensing lines RX2 to RXm-1, the touch drive circuit 390 (or touch drive unit 391) may be configured to simultaneously output one or more pulse signals PS of the touch drive signal TDS and one or more pulse signals PS of the auxiliary drive signal ADS having the same phase, voltage level VL1 (or voltage amplitude), and pulse width, respectively.

[0290] The touch driving circuit 390 according to an embodiment of the present invention may be built into (or integrated into) the driving integrated circuit 311 or implemented (or configured) inside the driving integrated circuit 311. For example, the touch driving unit 391 may be built into (or integrated into) the power management integrated circuit 370, or implemented (or configured) inside the power management integrated circuit 370.

[0291] Figure 15 It is shown in Figure 11 and Figure 12 The diagram shows the capacitance formed on the edge sensing line of the touch panel. Figure 16 It is shown in Figure 11 and Figure 12The diagram shows the capacitance formed on the center sensing line of the touch panel.

[0292] Reference Figure 15 and Figure 16 When the touch driving signal TDS is applied to the touch driving lines TX1 to TXn and the auxiliary driving signal ADS, synchronized with the touch driving signal TDS, is applied to the touch auxiliary line 400, an edge capacitance Cm_edge can be formed between the edge sensing lines RX1 and RXm and the touch auxiliary line 400, and a first capacitance Cm1 can be formed between the touch driving lines TX1 to TXn and the edge sensing lines RX1 and RXm. Simultaneously, a second capacitance Cm2 can be formed between the touch driving lines TX1 to TXn and the intermediate sensing lines RX2 to RXm-1. Therefore, the total capacitance Cm1 + Cm_edge formed on the edge sensing lines RX1 and RXm due to the edge capacitance Cm_edge formed by the touch auxiliary line 400 can be the same as or similar to the second capacitance Cm2 formed on the intermediate sensing lines RX2 to RXm-1. For example, the total capacitance Cm1+Cm_edge formed in each of the first touch sensing line RX1 and the m-th touch sensing line RXm by means of the edge capacitance Cm_edge formed due to the touch auxiliary line 400 can be the same as or similar to the second capacitance Cm2 formed in each of the second to (m-1)-th touch sensing lines RX2 to RXm-1.

[0293] Figure 17 This is a diagram illustrating the output signal of a touch driving circuit according to another embodiment of the present invention. For example, Figure 17 This shows how the above reference was modified. Figure 11 , 12 This embodiment is implemented using an auxiliary drive signal as the output signal of the touch drive circuit described in section 14. Therefore, in the following description, only the auxiliary drive signal will be described, and its repeated description will be omitted or briefly given. Therefore, for Figure 17 The description may include Figure 11 , 12 And the description of 14.

[0294] Reference Figure 11 , Figure 12 and Figure 17According to another embodiment of the present invention, each of the touch driving signal TDS and the auxiliary driving signal ADS may include one or more pulse signals PS having the same phase and the same pulse width. The one or more pulse signals PS of the touch driving signal TDS and the one or more pulse signals PS of the auxiliary driving signal ADS may have different voltage levels (or voltage amplitudes). For example, the voltage level VL2 (or voltage amplitude) of the one or more pulse signals PS of the auxiliary driving signal ADS may be higher than the voltage level VL1 (or voltage amplitude) of the one or more pulse signals PS of the touch driving signal TDS. For example, when the total capacitance Cm1+Cm_edge formed in the edge sensing lines RX1 and RXm is less than the second capacitance Cm2 formed in the middle sensing lines RX2 to RXm-1, the touch driving circuit 390 (or touch driving unit 391) may be configured to simultaneously output one or more pulse signals PS of the touch driving signal TDS and the one or more pulse signals PS of the auxiliary driving signal ADS having the same phase and pulse width but different voltage levels (or voltage amplitudes) VL1 and VL2.

[0295] According to another embodiment of the present invention, the total capacitance Cm1+Cm_edge formed in the edge sensing lines RX1 and RXm by the edge capacitance Cm_edge formed due to the voltage level VL2 (or voltage amplitude) of the touch auxiliary line 400 and the auxiliary drive signal ADS can be the same as or similar to the second capacitance Cm2 formed in the intermediate sensing lines RX2 to RXm-1. For example, the total capacitance Cm1+Cm_edge formed in each of the first touch sensing line RX1 and the m-th touch sensing line RXm by the edge capacitance Cm_edge formed due to the voltage level VL2 (or voltage amplitude) of the touch auxiliary line 400 and the auxiliary drive signal ADS can be the same as or similar to the second capacitance Cm2 formed in each of the second to (m-1)-th touch sensing lines RX2 to RXm-1.

[0296] Figure 18 This is a diagram illustrating a touch panel of a display device according to another embodiment of the present invention. For example, Figure 18 This shows how the above reference was modified. Figures 11 to 17 The implementation method described herein is based on touch guide lines. Therefore, in the following description, only touch guide lines will be described, and their repeated descriptions will be omitted or briefly given. Therefore, for Figure 18 The description may include Figures 11 to 17 The description.

[0297] Reference Figure 18In a display device according to another embodiment of the present invention, the touch auxiliary line 400 may be spaced apart from the ends of each of the first to nth touch driving lines TX1 to TXn and the ends of each of the first to mth touch sensing lines RX1 to RXm, and form mutual capacitance with each of the first to mth touch sensing lines RX1 to RXm.

[0298] The touch auxiliary line 400 may be spaced apart from the ends of each of the first touch driving electrodes TDE1 and TDEi of each of the first to nth touch driving lines TX1 to TXn, and may be spaced apart from the ends of each of the first touch sensing electrodes TSE1 and TSEj of each of the first to mth touch sensing lines RX1 to RXm. Therefore, the touch auxiliary line 400 may be configured to form mutual capacitance with each of the first to jth touch sensing electrodes TSE1 to TSEj of each of the first to mth touch sensing lines RX1 to RXm, and may be configured to form mutual capacitance with each of the first touch sensing electrodes TSE1 and TSEj of each of the first to mth touch sensing lines RX1 to RXm. For example, refer to the above... Figures 11 to 17 The described touch auxiliary line 400 is configured to additionally form mutual capacitance with each of the first and j-th touch sensing electrodes TSE1 and TSEj of each of the first to m-th touch sensing lines RX1 to RXm.

[0299] The touch guide line 400 may include an annular shape that is set or configured along or at the edge portion of the touch panel 200. For example, the touch guide line 400 may include an annular shape that overlaps with the edge portion of the touch panel 200. For example, the touch guide line 400 may include first to fourth touch guide lines 410, 420, 430 and 440.

[0300] The first touch guide line 410 is configured to improve touch sensitivity (or touch performance) at the first edge portion of the touch panel 200. The first touch guide line 410 is referenced above. Figures 11 to 17 The description of the first touch guide line 410 is basically the same, therefore, its repeated description is omitted.

[0301] The second touch guide line 420 is configured to improve touch sensitivity (or touch performance) at the second edge portion of the touch panel 200. The second touch guide line 420 is consistent with the above reference. Figures 11 to 17 The second touch auxiliary line 420 is basically the same as described, therefore, its repeated description is omitted.

[0302] The third touch auxiliary line 430 may be configured at the third edge portion of the touch panel 200 to connect to one end of the first touch auxiliary line 410 and one end of the second touch auxiliary line 420. For example, the third touch auxiliary line 430 may be configured at the third edge portion of the touch panel 200 to be parallel to the first touch sensing electrode TSE1 of each of the first to m-th touch sensing lines RX1 to RXm.

[0303] The third touch auxiliary line 430 can be configured to form an edge capacitance with each of the first to m-th touch sensing lines RX1 to RXm. For example, the third touch auxiliary line 430 can form an edge capacitance with the first touch sensing electrode TSE1 of each of the first to m-th touch sensing lines RX1 to RXm. For example, the third touch auxiliary line 430 can jointly form an edge capacitance with the first touch sensing electrode TSE1 of each of the first to m-th touch sensing lines RX1 to RXm. Therefore, the formation of an edge capacitance between each of the first to m-th touch sensing lines RX1 to RXm and the third touch auxiliary line 430 increases the mutual capacitance between each of the first to m-th touch sensing lines RX1 to RXm and the first to n-th touch driving lines TX1 to TXn. Therefore, the third touch auxiliary line 430 can improve the touch sensitivity (or touch performance) at the third edge portion of the touch panel 200.

[0304] A fourth touch assist line 440 may be configured at the fourth edge portion of the touch panel 200 to connect to the other end of the first touch assist line 410 and the other end of the second touch assist line 420. For example, the fourth touch assist line 440 may be configured at the fourth edge portion of the touch panel 200 to be parallel to the j-th touch sensing electrode TSj of each of the first to m-th touch sensing lines RX1 to RXm.

[0305] The fourth touch auxiliary line 440 can be configured to form an edge capacitance with each of the first to m-th touch sensing lines RX1 to RXm. For example, the fourth touch auxiliary line 440 can form an edge capacitance with the j-th touch sensing electrode TSEj of each of the first to m-th touch sensing lines RX1 to RXm. For example, the fourth touch auxiliary line 440 can jointly form an edge capacitance with the j-th touch sensing electrode TSEj of each of the first to m-th touch sensing lines RX1 to RXm. Therefore, since the edge capacitance is formed between each of the first to m-th touch sensing lines RX1 to RXm and the fourth touch auxiliary line 440, the mutual capacitance between each of the first to m-th touch sensing lines RX1 to RXm and each of the first to n-th touch driving lines TX1 to TXn can be increased. Therefore, the fourth touch auxiliary line 440 can improve the touch sensitivity (or touch performance) at the fourth edge portion of the touch panel 200.

[0306] Touch auxiliary lines 400, including first to fourth touch auxiliary lines 410, 420, 430, and 440, can receive auxiliary drive signals provided from the touch driving circuit (or touch driving unit). The auxiliary drive signals can be synchronized with touch drive signals sequentially applied to the first to nth touch drive lines TX1 to TXn. Except for applying auxiliary drive signals to touch auxiliary lines 400, including the first touch auxiliary line 410, second touch auxiliary line 420, third touch auxiliary line 430, and fourth touch auxiliary line 440, the touch driving circuit (or touch driving unit) is similar to the one described above. Figures 14 to 17 The described touch driving circuit (or touch driving unit) is basically the same, therefore, its repeated description is omitted. Furthermore, since the auxiliary driving signal is the same as the one described above... Figures 14 to 17 The auxiliary drive signals described are basically the same, so their repeated description is omitted.

[0307] According to another embodiment of the present invention, since the touch auxiliary line 400 is arranged (or configured) in a ring shape along the edge portion of the touch panel 200, the touch sensitivity (or touch performance) at the edge portion of the screen can be further improved as the capacitance of each of the first to m-th touch sensing lines RX1 to RXm increases (or is enhanced), and non-uniformity of touch sensitivity (or touch performance) can be prevented or minimized.

[0308] Figure 19 This is a diagram illustrating a second electrode and a touch panel in a display device according to another embodiment of the present invention. Figure 20 yes Figure 19 An enlarged view of the "B" shown. Figure 21 It is along Figure 20 The cross-sectional view taken by line III-III' is shown. For example, Figures 19 to 21 This shows how the above reference was modified. Figures 11 to 17 The implementation method described herein is based on touch guide lines. Therefore, in the following description, only touch guide lines will be described, and their repeated descriptions will be omitted or briefly given. Figures 11 to 17 The description may include in Figures 19 to 21 In the description.

[0309] Reference Figures 19 to 21 In a display device according to another embodiment of the present invention, the touch assist line 400 may be configured to improve touch sensitivity (or touch performance) at the edge portion of the screen. For example, the touch assist line 400 may be provided (or configured) on the display panel. The touch assist line 400 may be provided (or configured) below the touch panel 200. The touch assist line 400 may be provided (or configured) on a metal layer located below the touch panel 200.

[0310] The touch auxiliary line 400 can be set (or configured) to increase the total capacitance of the first touch sensing line RX1 and the m-th touch sensing line RXm, which are set (or configured) at the edge portion of the screen. The touch auxiliary line 400 can be formed (or configured) on the display panel to be spaced apart from the end TXe of each of the first touch driving electrode TDE1 and the i-th touch driving electrode TDEi that constitute (or form) each of the first to n-th touch driving lines TX1 to TXn.

[0311] The touch assist line 400 according to the embodiment may be formed of the same material as the second electrode (or common electrode) CE2, or may be formed (or configured) on the same layer as the second electrode CE2. For example, the touch assist line 400 may be formed of the electrode material (or metal material) of the second electrode CE2 deposited (or formed) on the edge portion of the display panel. For example, the electrode material (or metal material) of the second electrode CE2 deposited (or formed) on the edge portion of the display panel may be used as the touch assist line 400 by remaining on the edge portion of the display panel without being patterned (or removed) in the patterning (or removal) process of the second electrode CE2. Therefore, the touch assist line 400 may be formed (or configured) together with the second electrode CE2.

[0312] According to the embodiment, the touch assist line 400 may be formed (or configured) above the optical layer 117b and corresponding to the edge portion of the display panel. For example, the touch assist line 400 may be disposed (or interposed) between the optical layer 117b and the black matrix BM and corresponding to the edge portion of the display panel. The touch assist line 400 may be covered by the black matrix BM, but is not limited thereto. For example, a portion of the black matrix BM at the edge portion of the display panel may further include an opening (or exposure hole) BMh overlapping the touch assist line 400. For example, the opening BMh of the black matrix BM may have the same shape as the touch assist line 400. The linewidth of the opening of the black matrix BM may be equal to or greater than the linewidth of the touch assist line 400. The opening BMh of the black matrix BM may be covered by a cover layer 118. For example, the cover layer 118 may fill the opening BMh of the black matrix BM.

[0313] According to another embodiment of the present invention, the touch auxiliary line 400 may include a first touch auxiliary line 410 and a second touch auxiliary line 420.

[0314] The first touch assist line 410 can improve touch sensitivity (or touch performance) at the first edge portion of the touch panel 200. The first touch assist line 410 can be formed (or configured) together with the second electrode CE2 at the first edge portion of the display panel using the same material as the second electrode CE2. The first touch assist line 410 can be disposed (or interposed) between the optical layer 117b and the black matrix BM and corresponds to the first edge portion of the display panel. The first touch assist line 410 can be configured to form an edge capacitance with the first touch sensing line RX1. For example, the first touch assist line 410 can form an edge capacitance with each of the first to j-th touch sensing electrodes TSE1 to TSEj of the first touch sensing line RX1. In addition to the first touch assist line 410 being formed (or configured) together with the second electrode CE2, the first touch assist line 410 is similar to the one described above. Figures 11 to 17 The description of the first touch guide line 410 is essentially the same; therefore, its repeated description is omitted. (See above for reference.) Figures 11 to 17 The description of the first touch assist line 410 provided may include in Figures 19 to 21 The description of the first touch assist line 410 shown in the figure.

[0315] The second touch assist line 420 can improve the touch sensitivity (or touch performance) at the second edge portion of the touch panel 200. The second touch assist line 420 can be formed (or configured) together with the second electrode CE2 at the second edge portion of the display panel using the same material as the second electrode CE2. The second touch assist line 420 can be disposed (or interposed) between the optical layer 117b and the black matrix BM and corresponds to the second edge portion of the display panel. The second touch assist line 420 can be configured to form an edge capacitance with the m-th touch sensing line RXm. For example, the second touch assist line 420 can form an edge capacitance with each of the first to j-th touch sensing electrodes TSE1 to TSEj of the m-th touch sensing line RXm. Besides being formed (or configured) together with the second electrode CE2, the second touch assist line 420 is similar to the one described above. Figures 11 to 17 The description of the second touch assist line 420 is essentially the same; therefore, its repeated description is omitted. (See above for reference.) Figures 11 to 17 The description of the second touch assist line 420 may include in Figures 19 to 21 The description of the second touch assist line 420 shown in the figure.

[0316] A display device according to another embodiment of the present invention includes a touch assist line 400, which is formed (or configured) together with the second electrode CE2 at an edge portion of the display panel using the same material as the second electrode CE2, such that as the capacitance of each of the first to m-th touch sensing lines RX1 to RXm increases (or is enhanced), the touch sensitivity (or touch performance) at the edge portion of the screen can be improved, and non-uniformity of touch sensitivity (or touch performance) can be prevented or minimized.

[0317] Figure 22 This is a diagram illustrating a touch panel of a display device according to another embodiment of the present invention. For example, Figure 22 This shows how the above reference was modified. Figures 19 to 21 The implementation method described herein is based on touch guide lines. Therefore, in the following description, only touch guide lines will be described, and their repeated descriptions will be omitted or briefly given. Figures 19 to 21 The description may include in Figure 22 In the description.

[0318] Reference Figure 22 In a display device according to another embodiment of the present invention, the touch auxiliary line 400 may include first to fourth touch auxiliary lines 410, 420, 430 and 440. For example, the touch auxiliary line 400 may include a ring shape, which includes the first to fourth touch auxiliary lines 410, 420, 430 and 440.

[0319] Each of the first touch auxiliary line 410 and the second touch auxiliary line 420 is referenced above. Figures 19 to 21 Each of the first touch guide line 410 and the second touch guide line 420 described is substantially the same, therefore, their repeated description is omitted.

[0320] The third touch assist line 430 can be configured to improve touch sensitivity (or touch performance) at the third edge portion of the touch panel 200. The third touch assist line 430 can be configured at the third edge portion of the display panel to connect to one end of the first touch assist line 410 and one end of the second touch assist line 420. Except that the third touch assist line 430 is formed (or configured) together with the second electrode CE2 at the third edge portion of the display panel, the third touch assist line 430 is consistent with the above-mentioned... Figures 19 to 21 The description of the first touch guide line 410 is basically the same, therefore, its repeated description is omitted.

[0321] The fourth touch assist line 440 can be configured to improve touch sensitivity (or touch performance) at the fourth edge portion of the touch panel 200. The fourth touch assist line 440 can be configured at the fourth edge portion of the display panel to connect to the other end of the first touch assist line 410 and the other end of the second touch assist line 420. Except that the fourth touch assist line 440 is formed (or configured) together with the second electrode CE2 in the fourth edge portion of the display panel, the fourth touch assist line 440 is consistent with the above-mentioned... Figures 19 to 21 The description of the first touch guide line 410 is basically the same, therefore, its repeated description is omitted.

[0322] A display device according to another embodiment of the present invention includes a touch assist line 400, which is formed (or configured) in a ring shape along the edge portion of the display panel using the same material as the second electrode CE2. Therefore, as the capacitance of each of the first to m-th touch sensing lines RX1 to RXm increases (or is enhanced), the touch sensitivity (or touch performance) at the edge portion of the screen can be further improved, and non-uniformity of touch sensitivity (or touch performance) can be prevented or minimized.

[0323] Figures 23 to 26 This is a diagram illustrating a device using a display device according to an embodiment of the present invention.

[0324] Reference Figures 23 to 26 The display device according to embodiments of the present invention can be applied to or included in various devices or electronic devices. For example, various electronic devices may include Figure 23 The wearable device 1100 shown Figure 24 The mobile device 1200 shown Figure 25 The laptop 1300 shown and Figure 26 The monitor or TV 1400 shown is an example, but not limited to.

[0325] Each of the wearable device 1100, mobile device 1200, laptop computer 1300, and display or TV 1400 may include housing portions 1005, 1010, 1015, and 1020, as well as a display device 1000 according to the above embodiments of the present invention. Therefore, a description of the display device 1000 is omitted. (Referring to the above...) Figures 1 to 22 The description may include in Figures 23 to 26 In the description.

[0326] For example, the display device according to embodiments of the present invention can be applied to mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, sliding devices, variable devices, electronic notebooks, e-books, PMPs (portable multimedia players), PDAs (personal digital assistants), MP3 (MPEG audio layer 3) players, mobile medical devices, desktop personal computers, laptop personal computers, netbook computers, workstations, navigation systems, vehicle display devices, cinema display devices, televisions, wallpaper devices, signage devices, gaming devices, laptops, monitors, cameras, portable video cameras, or home appliances, etc.

[0327] It will be apparent to those skilled in the art that various modifications and variations can be made to the invention without departing from its spirit or scope. Therefore, this invention is intended to cover any modifications and variations that fall within the scope of the claims and their equivalents.

Claims

1. A display device, comprising: A display panel that includes multiple pixel driving circuits; A touch panel configured on the display panel; as well as Touch guide lines are configured on the display panel or the touch panel. The touch panel includes: The first to the nth touch drive lines, where n is a natural number greater than or equal to 4; as well as The first to the m-th touch sensing lines are configured to form mutual capacitance with adjacent touch driving lines among the first to the n-th touch driving lines, where m is a natural number greater than or equal to 4. The touch auxiliary line is spaced apart from the end of each of the first to nth touch driving lines and is configured to form mutual capacitance with at least some of the first to mth touch sensing lines.

2. The display device according to claim 1, wherein: Each of the first to nth touch drive lines includes: The first to the i-th touch driving electrodes, where i is a natural number greater than or equal to 4; and Multiple bridging electrodes are configured to connect between the first to the i-th touch driving electrodes. The size of each of the first touch driving electrode and the i-th touch driving electrode is smaller than the size of each of the second to (i-1)-th touch driving electrodes. The touch auxiliary line is spaced apart from the ends of the first touch driving electrode and the i-th touch driving electrode of each of the first to n-th touch driving lines.

3. The display device according to claim 2, wherein: Each of the second to (i-1)th touch driving electrodes has a rectangular or rhomboid shape. Each of the first touch driving electrode and the i-th touch driving electrode has the same or different shape as each of the second to (i-1)-th touch driving electrodes. The touch auxiliary line is configured to be parallel to the first to the mth touch sensing lines.

4. The display device of claim 3, wherein the touch auxiliary line comprises: A first touch auxiliary line is configured to be adjacent to a first touch driving electrode of each of the first to nth touch driving lines; as well as The second touch auxiliary line is configured to be adjacent to the i-th touch driving electrode of each of the first to n-th touch driving lines.

5. The display device of claim 2, wherein the touch auxiliary line is spaced apart from the ends of each of the first to nth touch driving lines and the ends of each of the first to mth touch sensing lines, and is configured to form mutual capacitance with each of the first to mth touch sensing lines.

6. The display device according to claim 2, wherein: Each of the first to the m-th touch sensing lines includes: The first to the j-th touch sensing electrodes, where j is a natural number greater than or equal to 4; and Multiple electrode connection lines are configured to connect between the first to the j-th touch sensing electrodes. The size of each of the first touch sensing electrode and the j-th touch sensing electrode is smaller than the size of each of the second to (j-1)-th touch sensing electrodes. The touch auxiliary line is spaced apart from the ends of the first touch sensing electrode and the j-th touch sensing electrode of each of the first to m-th touch sensing lines.

7. The display device according to claim 6, wherein: Each of the second to (j-1)th touch sensing electrodes has a rectangular or rhomboid shape. Each of the first touch sensing electrode and the j-th touch sensing electrode has the same or different shape as each of the second to (j-1)-th touch sensing electrodes. The touch assist line includes a ring shape that overlaps with the edge portion of the touch panel.

8. The display device according to claim 6, wherein: The touch panel includes: First touch electrode layer; A touch insulating layer covering the first touch electrode layer; and The second touch electrode layer on the touch insulating layer, The first to the i-th touch driving electrodes are disposed at any one of the first touch electrode layer and the second touch electrode layer. The plurality of bridging electrodes are configured on different layers from the first to the i-th touch driving electrodes of the first touch electrode layer and the second touch electrode layer. Each of the plurality of bridging electrodes is configured to be electrically connected to two adjacent touch driving electrodes among the first to i-th touch driving electrodes through a via disposed at the touch insulating layer. The first to j-th touch sensing electrodes and the plurality of electrode connection lines are configured on the same layer as the first to i-th touch driving electrodes.

9. The display device according to claim 2, wherein the touch auxiliary line is disposed on the same layer as the first to mth touch sensing lines, or on the same layer as the plurality of bridging electrodes.

10. The display device according to any one of claims 1 to 7, further comprising a touch driving circuit electrically connected to the first to nth touch driving lines, the first to mth touch sensing lines, and the touch auxiliary lines. The touch driving circuit is configured to provide a touch driving signal to each of the first to nth touch driving lines, and to provide an auxiliary driving signal synchronized with the touch driving signal to the touch auxiliary line.

11. The display device of claim 10, wherein each of the touch driving signal and the auxiliary driving signal comprises one or more pulse signals having the same phase, the same pulse width and the same voltage level.

12. The display device according to claim 10, wherein: Each of the touch driving signal and the auxiliary driving signal includes one or more pulse signals having the same phase and the same pulse width. One or more pulse signals of the touch driving signal and one or more pulse signals of the auxiliary driving signal have different voltage levels from each other.

13. The display device according to any one of claims 1 to 7, wherein the display panel comprises: The substrate includes both the display area and the non-display area; Multiple pixel driving circuits in the display area on the substrate; An insulating layer covering the plurality of pixel driving circuits; Multiple light-emitting devices electrically connected to each of the plurality of pixel driving circuits; Electrically connected to the common electrode of the plurality of light-emitting devices; as well as A covering layer that covers the common electrode.

14. The display device of claim 13, wherein the touch auxiliary line is disposed on the same layer as the first to mth touch sensing lines, or is disposed of the same material as the common electrode.

15. The display device of claim 13, wherein the touch panel comprises: A touch electrode layer is disposed on the cover layer of the display panel and includes the first to nth touch driving lines and the first to mth touch sensing lines; as well as A passivation layer covering the touch electrode layer.

16. The display device of claim 15, wherein the touch auxiliary line is disposed on the same layer as the first to mth touch sensing lines, or on the same layer as the common electrode.

17. The display device according to claim 13, wherein: The display panel further includes a black matrix having multiple openings overlapping each of the plurality of light-emitting devices. Each of the first to nth touch driving lines and each of the first to mth touch sensing lines includes a grid structure with grid lines. The grid lines overlap with the black matrix and have a smaller line width than the black matrix.

18. The display device according to claim 13, wherein: The display panel also includes: Multiple embankments in the insulating layer; Multiple connecting electrodes, each located in one of the multiple embankments and electrically connected to a corresponding pixel driving circuit in the multiple pixel driving circuits; and Multiple bonding pads on each of the plurality of connecting electrodes, Each of the plurality of light-emitting devices includes: A first electrode, the first electrode being electrically connected to a corresponding bonding pad in the plurality of bonding pads; and The second electrode is electrically connected to the common electrode.

19. The display device of claim 18, wherein the display panel further comprises an optical layer disposed on the insulating layer and surrounding the side surface of each of the plurality of light-emitting devices and the side surface of each of the plurality of embankments.

20. The display device of claim 19, wherein the optical layer comprises: A first optical layer surrounds the side of each of the plurality of light-emitting devices and the plurality of embankments between the common electrode and the insulating layer; A second optical layer surrounds the side of the first optical layer; as well as A third optical layer is disposed on the common electrode and overlaps with the plurality of light-emitting devices and the first optical layer.

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