Display device

Abstract

According to one aspect of the disclosure, a display device includes a substrate provided with a plurality of pixels, each pixel including a light emitting area and a transmissive area. Further, the display device includes a plurality of touch lines in the light emitting area and a plurality of data lines in the light emitting area. Further, the display device includes a compensation electrode electrically connected to at least one of the plurality of touch lines. Further, the display device includes a planarization layer on the plurality of touch lines and the plurality of data lines, the planarization layer including an opening corresponding to the transmissive area. Further, the display device includes a light emitting diode on the planarization layer in the light emitting area and a touch electrode disposed within the opening in the transmissive area. The plurality of touch lines includes a first touch line and a second touch line closer to the plurality of data lines than the first touch line. The compensation electrode is electrically connected to the first touch line.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2021-0193996, filed with the Korean Intellectual Property Office on December 31, 2021, the disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to a display device, and more specifically, to a display device that can have improved touch sensing accuracy. Background Technology

[0004] With the advent of the information age, the field of display devices for visually displaying electrical information signals is developing rapidly. Therefore, efforts have been made to reduce the size, weight, and power consumption of various display devices.

[0005] In addition to traditional input methods such as buttons, keyboards, and mice, some display devices also offer touch-based input, allowing users to easily, intuitively, and conveniently input information or commands. Touch-based display devices can be broadly categorized into self-capacitance and mutual-capacitance types. Self-capacitance display devices, where capacitance is formed between multiple touch electrodes and the user's input, can recognize touch based on changes in capacitance generated when the user touches the device. Mutual-capacitance display devices, where the touch electrodes are divided into driving electrodes and sensing electrodes, and mutual capacitance is formed between them, can recognize touch based on changes in mutual capacitance generated when the user touches the device. Summary of the Invention

[0006] One objective of this disclosure is to provide a display device having an in-cell touch structure.

[0007] Another objective of this disclosure is to provide a display device that can have improved touch sensing accuracy.

[0008] The purpose of this disclosure is not limited to the above-mentioned purposes, and other purposes not mentioned above can be clearly understood by those skilled in the art from the following description.

[0009] According to one aspect of this disclosure, a display device includes: a substrate having a plurality of pixels, each pixel including a light-emitting region and a transmissive region. Furthermore, the display device includes a plurality of touch lines in the light-emitting region and a plurality of data lines in the light-emitting region. Additionally, the display device includes a compensation electrode electrically connected to at least one of the plurality of touch lines. Furthermore, the display device includes a planarization layer on the plurality of touch lines and the plurality of data lines, the planarization layer including an opening corresponding to the transmissive region. Furthermore, the display device includes a light-emitting diode on the planarization layer in the light-emitting region and a touch electrode disposed within the opening in the transmissive region. The plurality of touch lines includes a first touch line and a second touch line closer to the plurality of data lines than the first touch line. The compensation electrode is electrically connected to the first touch line.

[0010] Further details of exemplary embodiments are included in the detailed description and accompanying drawings.

[0011] According to this disclosure, a transparent display device with an embedded structure can be realized.

[0012] According to this disclosure, the difference in capacitance between touch lines can be minimized by using a compensation electrode within the pixel.

[0013] The effects of this disclosure are not limited to those illustrated above; this specification includes a variety of other effects. Attached Figure Description

[0014] The above and other aspects, features and advantages of this disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0015] Figure 1 This is a plan view illustrating a display device according to an exemplary embodiment of the present disclosure;

[0016] Figure 2 yes Figure 1 The diagram shows the configuration of the pixels shown.

[0017] Figure 3 yes Figure 2 A magnified view of the pixels shown;

[0018] Figure 4 It is along Figure 3 A cross-sectional view taken from line IV-IV';

[0019] Figure 5 This is a plan view illustrating a display device according to another exemplary embodiment of the present disclosure;

[0020] Figure 6 It is along Figure 5 The cross-sectional view taken from line VI-VI'. Detailed Implementation

[0021] The advantages and features of this disclosure, as well as the methods for achieving these advantages and features, will become clear from reference to the exemplary embodiments described in detail below with reference to the accompanying drawings. However, this disclosure is not limited to the exemplary embodiments disclosed herein, but will be implemented in various forms. These exemplary embodiments are provided by way of example only so that those skilled in the art can fully understand the disclosure and scope of this disclosure. Therefore, this disclosure will be limited only by the scope of the appended claims.

[0022] The shapes, dimensions, scales, angles, quantities, etc., shown in the accompanying drawings to describe exemplary embodiments of this disclosure are merely examples, and this disclosure is not limited thereto. Throughout the specification, the same reference numerals generally denote the same elements. Furthermore, in the following description of this disclosure, detailed explanations of known related technologies may be omitted to avoid unnecessarily obscuring the subject matter. Terms such as “comprising,” “having,” and “consisting of” as used herein are generally intended to allow for the addition of additional components, unless these terms are used in conjunction with the term “only.” Unless otherwise expressly stated, any reference to the singular may include the plural.

[0023] Even if not explicitly stated, components are interpreted as including the normal error range.

[0024] When using terms such as “on top of,” “above,” “below,” and “after” to describe the positional relationship between two parts, one or more parts may be placed between the two parts, unless these terms are used with the terms “immediately following” or “directly.”

[0025] When one element or layer is disposed "on" another element or layer, the element or layer may be disposed directly on the other element or layer or other elements or layers may be inserted between them.

[0026] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from other components. Therefore, within the technical concept of this invention, the first component mentioned below can be a second component.

[0027] The same reference numerals generally denote the same elements throughout the application.

[0028] For ease of illustration, the dimensions and thickness of each component shown in the accompanying drawings are illustrated. However, the invention is not limited to the dimensions and thickness of the illustrated components.

[0029] The features of the various embodiments of this disclosure may be combined or integrated with each other in part or in whole, and may be technically interlocked and operated in various ways. These embodiments may be implemented independently of each other or in association with each other.

[0030] This disclosure will be described in detail below with reference to the accompanying drawings.

[0031] Figure 1 This is a plan view illustrating a display device according to an exemplary embodiment of the present disclosure. Figure 2 yes Figure 1 The diagram shows the pixel configuration. Figure 1 For ease of description, only the substrate 110, the multiple flexible films 120 and the multiple printed circuit boards 130 among the various components of the display device 100 are illustrated.

[0032] Reference Figure 1 A display device 100 according to an exemplary embodiment of the present disclosure includes a substrate 110, a plurality of flexible films 120, and a plurality of printed circuit boards 130. The display device 100 may be a transparent display device with an embedded touch structure.

[0033] The substrate 110 includes a display area AA and a non-display area NA.

[0034] The display area AA is located in the central portion of the substrate 110 and can be the area in the display device 100 where an image is displayed. Display elements and various driving elements for driving the display elements can be disposed in the display area AA. For example, the display element can be a light-emitting diode (OLED) comprising an anode AN, a light-emitting layer EL, and a cathode CT, as described later. Furthermore, various driving elements such as transistors TR, capacitors, and lines for driving the display elements can be disposed in the display area AA.

[0035] Multiple touch electrode blocks (TEBs) are provided in the display area AA. These multiple touch electrode blocks (TEBs) may include multiple touch electrodes (TEs), which will be discussed later. Figure 3 and Figure 4 This is described in detail. Specifically, multiple touch electrodes TE, disposed within the display area AA, can be divided into multiple blocks according to the area and can form multiple touch electrode blocks TEB. Here, the multiple touch electrodes TE disposed within a single touch electrode block TEB can be electrically connected to each other. Furthermore, the multiple touch electrode blocks TEB can be electrically connected to multiple touch lines TL respectively. Therefore, the multiple touch electrode blocks TEB can recognize a touch by receiving touch drive signals via the multiple touch lines TL. Furthermore, the multiple touch electrode blocks TEB can transmit touch sensing signals to the multiple touch lines TL. The multiple touch electrode blocks TEB can recognize a touch using a self-capacitance type method.

[0036] Each of the multiple touch electrode blocks (TEBs) has multiple pixels (PXs). Each of the multiple pixels (PXs) includes a light-emitting area (EA) and a transmissive area (TA).

[0037] Specifically, refer to Figure 2 Each pixel PX includes a light-emitting area EA and a light-transmitting area TA. Multiple sub-pixels SP can be set within the light-emitting area EA. The touch sensor portion TSP can be set within the light-transmitting area TA.

[0038] The luminescent region EA can be the area where an image is actually realized during luminescence. The luminescent region EA can be defined as the area within a pixel PX where no multiple transmissive regions TA are provided. Multiple sub-pixels SP can be provided within the luminescent region EA. That is, the luminescent region EA can emit light through a light-emitting diode (OLED) provided in each of the multiple sub-pixels SP. The multiple sub-pixels SP can each emit light of different wavelengths. For example, the multiple sub-pixels SP can include a first sub-pixel SP1, a second sub-pixel SP2, a third sub-pixel SP3, and a fourth sub-pixel SP4. Here, the first sub-pixel SP1 can be a red sub-pixel, the second sub-pixel SP2 can be a green sub-pixel, the third sub-pixel SP3 can be a blue sub-pixel, and the fourth sub-pixel SP4 can be a white sub-pixel. That is, a single pixel PX can include four sub-pixels SP1, SP2, SP3, and SP4 that emit light of different colors. However, this disclosure is not limited thereto.

[0039] Each subpixel SP is the smallest unit for forming an image, and each of the plurality of subpixels SP may include a light-emitting diode (OLED) and driver circuitry. The plurality of subpixels SP may be electrically connected to a plurality of gate lines GL arranged along a first direction and a plurality of data lines DL arranged along a second direction different from the first direction. Here, the first direction may be... Figure 1 and Figure 2 The horizontal direction shown, the second direction can be Figure 1 and Figure 2 The vertical direction shown, but not limited to.

[0040] The driver circuit of the sub-pixel SP is a circuit used to control the driving of the light-emitting diode OLED. For example, the driver circuit may include switching transistors, driving transistors, capacitors, etc. The driver circuit may be electrically connected to signal lines, such as gate lines GL and data lines DL, which are connected to gate driver ICs, data driver ICs, etc., located in the non-display area NA.

[0041] The transmissive region TA can be an area through which at least a portion of light incident from the outside passes. Multiple sub-pixels SP are not provided in the transmissive region TA. A touch sensor portion TSP can be provided in the transmissive region TA. The transmissive region TA can be made of a transparent material. Therefore, the display device 100 can be transparent due to the transmissive region TA. Multiple transmissive regions TA can be provided within a single pixel PX. For example, transmissive regions TA can be provided on both sides of the pixel PX, but this is not a limitation.

[0042] The touch sensor section (TSP) includes touch electrodes (TE) for sensing touch. The touch electrodes (TE) are electrically connected to the touch line (TL) and can receive touch drive signals from the touch driver IC or transmit touch sensing signals to the touch driver IC. The touch electrodes (TE) can be made of a transparent conductive material. Furthermore, a virtual organic layer (DM) and multiple insulating layers (described later) can be provided in the touch sensor section (TSP). Here, the virtual organic layer (DM) and multiple insulating layers can be made of a transparent material.

[0043] The non-display area NA is located on the outer periphery of the substrate 110 and can be an area where no image is displayed. The non-display area NA can be positioned around the display area AA, but is not limited thereto. Various components for driving the multiple sub-pixels SP and multiple touch sensor portions TSP disposed in the display area AA can be provided in the non-display area NA. For example, driver ICs, driver circuits, signal lines, flexible films 120, etc., that provide signals for driving the multiple sub-pixels SP and multiple touch sensor portions TSP can be provided in the non-display area NA.

[0044] Multiple flexible films 120 are disposed at one end of the substrate 110. The multiple flexible films 120 are electrically connected to one end of the substrate 110. Each of the multiple flexible films 120 is a film in which various components are disposed on a stretchable base film to provide signals to multiple sub-pixels SP in a display area AA. One end of the multiple flexible films 120 can be disposed in a non-display area NA of the substrate 110 to provide data voltage, etc., to the multiple sub-pixels SP in the display area AA. Furthermore, although in Figure 1 Four flexible membranes 120 are shown, but the number of flexible membranes 120 can vary depending on the design and is not limited to this.

[0045] A driver IC, such as a gate driver IC, a data driver IC, or a touch driver IC, may be disposed on each of the plurality of flexible films 120. The driver IC may be a component that processes data for displaying an image and drive signals for processing that data. The driver IC may process touch drive signals and touch sensing signals for sensing touch. Depending on the mounting method, the driver IC may be disposed using chip-on-glass (COG), chip-on-film (COF), or tape-on-carrier (TCP) technology. However, in this application, for ease of description, the driver IC is described as being mounted on the plurality of flexible films 120 using COF technology, but is not limited thereto.

[0046] Printed circuit board 130 is connected to multiple flexible films 120. Printed circuit board 130 can be a component that provides signals to a driver IC. Various components that provide various drive signals, such as drive signals or data voltages, to the driver IC can be disposed in printed circuit board 130. Meanwhile, although... Figure 1 Two printed circuit boards 130 are shown, but the number of printed circuit boards 130 may vary depending on the design and is not limited to this.

[0047] The display device 100 is a transparent display device. The display device 100 is transparent due to its multiple transmissive areas TA and can also display images through its light-emitting areas EA. That is, when light is emitted through the light-emitting areas EA, the display device 100 can display images, such as videos, still images, or static images. Furthermore, the display device 100 is transparent by allowing light incident from the outside to pass through the multiple transmissive areas TA.

[0048] The display device 100 can be a top-emitting type display device. In the top-emitting type, light emitted from the light-emitting diode (OLED) is emitted towards the upper part of the substrate 110 on which the OLED is disposed. In the case of the top-emitting type, a reflective layer can be formed below the anode so that the light emitted from the OLED propagates towards the upper part of the substrate, that is, towards the cathode.

[0049] Figure 3 yes Figure 2 A magnified view of the pixels shown. Figure 4 It is along Figure 3 A cross-sectional view taken from line IV-IV'. Figure 3 For ease of description, only the gate line GL, data line DL, reference line RL, high-potential power line VDD, low-potential power line VSS, touch line TL, cathode CT, touch electrode TE, and compensation electrode CE among the various components of the display device 100 are shown. Furthermore, the edges of the cathode CT and touch electrode TE are indicated by thick solid lines.

[0050] Reference Figure 3 and Figure 4The display device 100 includes a substrate 110, a light-shielding layer LS, a reference line RL, a touch line TL, a gate line GL, a data line DL, a compensation electrode CE, a high-potential power line VDD, a low-potential power line VSS, a transistor TR, a light-emitting diode OLED, and a touch electrode TE.

[0051] Additionally, refer to Figure 2 The luminescent area EA includes multiple sub-pixels SP, and the transmissive area TA includes the touch sensor portion TSP. That is to say, although not in Figure 3 As shown, the light-emitting region EA includes a first sub-pixel SP1, a second sub-pixel SP2, a third sub-pixel SP3, and a fourth sub-pixel SP4. Specifically, the left and right sides of the reference line RL above the gate line GL correspond to the first sub-pixel SP1 and the second sub-pixel SP2, respectively. Furthermore, the left and right sides of the reference line RL below the gate line GL correspond to the third sub-pixel SP3 and the fourth sub-pixel SP4, respectively. Additionally, the area in the transmissive region TA where the touch electrode TE is located corresponds to the touch sensor portion TSP.

[0052] Within the light-emitting area EA, multiple touch lines TL, multiple data lines DL, a high-potential power line VDD, a low-potential power line VSS, a transistor TR, and a light-emitting diode (OLED) are located. In other words, the light-emitting area EA includes multiple sub-pixels SP that actually emit light and can be defined as the area where the driver circuitry is located.

[0053] The transmissive region TA does not contain multiple touch lines TL, multiple data lines DL, high-potential power lines VDD, low-potential power lines VSS, transistors TR, or light-emitting diodes (OLEDs). In other words, the transmissive region TA needs to be configured to allow objects behind the display device 100 to be seen through it. Therefore, the transmissive region TA needs to be configured to transmit light. Therefore, the transmissive region TA does not contain multiple touch lines TL, multiple data lines DL, high-potential power lines VDD, low-potential power lines VSS, transistors TR, or light-emitting diodes (OLEDs) containing opaque material. Therefore, transparency or translucency of the transmissive region TA can be achieved.

[0054] Furthermore, since the gate line GL is positioned along a first direction intersecting with the pixel PX, a portion of the gate line GL can be configured to pass through the transmissive region TA. However, the area overlapping with the gate line GL is only a portion of the transmissive region TA. Therefore, the transmissive region TA can remain transparent.

[0055] The substrate 110 is a substrate used to support and protect various components of the display device 100. The substrate 110 may be made of glass or a flexible plastic material. When the substrate 110 is made of a plastic material, it may be made of polyimide (PI), for example, but is not limited thereto.

[0056] A reference line RL, multiple touch lines TL, and a light-shielding layer LS are disposed on the substrate 110. The reference line RL, multiple touch lines TL, and light-shielding layer LS can be disposed in the light-emitting area EA. The reference line RL, multiple touch lines TL, and light-shielding layer LS can be fabricated on the substrate 110 using the same process and from the same material. For example, the reference line RL, multiple touch lines TL, and light-shielding layer LS can be made of conductive materials such as copper (Cu), aluminum (Al), molybdenum (Mo), nickel (Ni), titanium (Ti), chromium (Cr), or alloys thereof, but are not limited thereto.

[0057] A reference line RL is a line extending along a second direction from the central portion of pixel PX and configured to transmit a reference voltage to each of the plurality of sub-pixels SP. For example, the reference line RL may be located between the first sub-pixel SP1 and the second sub-pixel SP2, and between the third sub-pixel SP3 and the fourth sub-pixel SP4. The plurality of sub-pixels SP forming a single pixel PX may share a single reference line RL. For example, a single reference line RL may transmit a reference voltage to each of the first sub-pixel SP1, the second sub-pixel SP2, the third sub-pixel SP3, and the fourth sub-pixel SP4.

[0058] Multiple touch lines TL apply touch driving signals to multiple touch electrodes TE and receive touch sensing signals from the multiple touch electrodes TE. The multiple touch lines TL may extend along a second direction of the substrate 110. A portion of the multiple touch lines TL may extend to the transmissive region TA to contact the touch electrodes TE.

[0059] Four touch lines TL can be set in a single pixel PX. That is, the touch lines TL may include a first touch line TL1, a second touch line TL2, a third touch line TL3, and a fourth touch line TL4. Here, the first touch line TL1 and the second touch line TL2 may be set adjacent to the transmissive area TA set on one side of the light-emitting area EA. The third touch line TL3 and the fourth touch line TL4 may be set adjacent to the transmissive area TA set on the other side of the light-emitting area EA. Multiple touch lines TL1, TL2, TL3, and TL4 may be electrically connected to different touch electrode blocks TEB. For example, the first touch line TL1 may be electrically connected to all touch electrodes TE set in multiple pixels PX in one of multiple touch electrode blocks TEB.

[0060] in addition, Figure 3 The illustration shows four touch lines TL arranged in a single pixel PX, but this disclosure is not limited thereto. That is, the number of touch lines TL overlapping with a single pixel PX can vary depending on the design of the display device 100.

[0061] The light-shielding layer LS can be configured to overlap with the active layer ACT of the transistor TR. The light-shielding layer LS blocks light incident on the active layer ACT. When light shines on the active layer ACT, leakage current occurs. Therefore, the reliability of the transistor TR, which serves as the driving transistor, is reduced. Therefore, if the light-shielding layer LS, made of an opaque conductive material, is configured to overlap with the active layer ACT, light incident on the active layer ACT from below the substrate 110 can be blocked. Thus, the reliability of the transistor TR can be improved by using the light-shielding layer LS.

[0062] Additionally, although not shown in the figure, the light-shielding layer LS can be electrically connected to the source electrode SE or drain electrode DE of the transistor TR. If the light-shielding layer LS is electrically floating, the parasitic capacitance between the light-shielding layer LS and the active layer ACT changes. Furthermore, the offset of the threshold voltage of the transistor TR will change. This can lead to visual defects, such as changes in brightness. Therefore, the light-shielding layer LS is electrically connected to the source electrode SE or drain electrode DE, thus maintaining a constant parasitic capacitance.

[0063] A buffer layer 111 is disposed on the reference line RL, multiple touch lines TL, and a light-shielding layer LS. The buffer layer 111 is configured to insulate the components above and below it, and the buffer layer 111 may be made of an insulating material. For example, the buffer layer 111 may be formed as a single layer of silicon oxide (SiOx) or silicon nitride (SiNx) or multiple layers thereof, but is not limited thereto.

[0064] Transistor TR is disposed on buffer layer 111. Transistor TR can be disposed in light-emitting region EA. Transistor TR can be used as a driving element for driving light-emitting diode OLED. Transistor TR includes active layer ACT, gate electrode GE, source electrode SE, and drain electrode DE. Figure 4 The transistor TR shown is a driving transistor and is a thin-film transistor having a top-gate structure in which the gate electrode GE is disposed on the active layer ACT, but is not limited thereto. The transistor TR can also be implemented as a transistor with a bottom-gate structure.

[0065] Figure 4 Only the driving transistor TR among the various transistors included in the display device 100 is illustrated, but other transistors such as switching transistors may also be disposed on the buffer layer 111.

[0066] The active layer ACT is disposed on the buffer layer 111. The active layer ACT is the region that forms a channel when the transistor TR is driven. The active layer ACT can be made of a semiconductor material such as oxide semiconductor, amorphous silicon, or polycrystalline silicon, but is not limited to these. For example, when the active layer ACT is made of oxide semiconductor, the active layer ACT consists of a channel region, a source region, and a drain region. Here, the source region and drain region can be conductive regions, but are not limited to these.

[0067] A gate insulating layer 112 is disposed on the active layer ACT. The gate insulating layer 112 is configured to electrically insulate the active layer ACT from the gate electrode GE, and the gate insulating layer 112 may be made of an insulating material. Figure 4 As shown, the gate insulating layer 112 may be patterned on the active layer ACT to have the same width as the gate electrode GE, but is not limited thereto. That is, the gate insulating layer 112 may be formed over the entire surface of the substrate 110. The gate insulating layer 112 may be formed as a single layer or multiple layers of silicon nitride (SiNx) or silicon oxide (SiOx) as inorganic materials, but is not limited thereto.

[0068] The gate electrode GE is disposed on the gate insulating layer 112. The gate electrode GE is disposed on the gate insulating layer 112 to overlap with the channel region of the active layer ACT. The gate electrode GE may be made of any one or an alloy of two or more of a variety of metallic materials, such as molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or the gate electrode GE may be a multilayer of such materials, but is not limited thereto.

[0069] The gate electrode GE may extend from the gate line GL. That is, the gate electrode GE may be integrally formed with the gate line GL, and the gate electrode GE and the gate line GL may be made of the same conductive material. For example, the gate line GL may be made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy of two or more of them, or the gate line GL may be a multilayer of them, but is not limited thereto.

[0070] A gate line GL is a line configured to deliver a gate voltage to each of a plurality of sub-pixels SP. The gate line GL may extend along a first direction intersecting with a pixel PX. For example, the gate line GL may be located between a first sub-pixel SP1 and a third sub-pixel SP3, and between a second sub-pixel SP2 and a fourth sub-pixel SP4. The gate line GL extending along the first direction may intersect with a high-potential power line VDD, multiple touch lines TL, multiple data lines DL, a reference line RL, and a low-potential power line VSS extending along a second direction.

[0071] An interlayer insulating layer 113 is disposed on the gate electrode GE. The interlayer insulating layer 113 may be formed as a single layer or multiple layers of silicon nitride (SiNx) or silicon oxide (SiOx) as inorganic materials, but is not limited thereto. Contact holes are formed in the interlayer insulating layer 113 for contact between the source electrode SE and the source region of the active layer ACT, and for contact between the drain electrode DE and the drain region of the active layer ACT.

[0072] The source electrode SE and drain electrode DE are disposed on the interlayer insulating layer 113. The source electrode SE and drain electrode DE are disposed on the same layer and spaced apart from each other. The source electrode SE and drain electrode DE are electrically connected to the active layer ACT through contact holes in the interlayer insulating layer 113.

[0073] Multiple data lines DL are disposed on the interlayer insulating layer 113. That is, the multiple data lines DL, the source electrode SE, and the drain electrode DE can be made of the same material using the same process on the interlayer insulating layer 113. For example, the multiple data lines DL, the source electrode SE, and the drain electrode DE can be made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy of two or more of them, or can be multiple layers of them, but are not limited thereto.

[0074] Multiple data lines DL can be disposed in the light-emitting area EA. The multiple data lines DL are lines extending along a second direction and configured to transmit data voltage to each of the multiple sub-pixels SP. The multiple data lines DL include a first data line DL1, a second data line DL2, a third data line DL3, and a fourth data line DL4. The first data line DL1 and the second data line DL2 can be disposed on one side of the reference line RL. In this case, the first data line DL1 can be disposed adjacent to the first touch line TL1 and the second touch line TL2, and the second data line DL2 can be disposed adjacent to the reference line RL. The third data line DL3 and the fourth data line DL4 can be disposed on the other side of the reference line RL. In this case, the fourth data line DL4 can be disposed adjacent to the third touch line TL3 and the fourth touch line TL4, and the third data line DL3 can be disposed adjacent to the reference line RL. The first data line DL1 can be electrically connected to the first sub-pixel SP1. The second data line DL2 can be electrically connected to the third sub-pixel SP3. The third data line DL3 can be electrically connected to the second sub-pixel SP2. The fourth data line DL4 can be electrically connected to the fourth sub-pixel SP4.

[0075] A compensation electrode CE is disposed on the interlayer insulating layer 113. The compensation electrode CE can be electrically connected to at least one of the multiple touch lines TL disposed in the light-emitting region EA. Specifically, the compensation electrode CE can be electrically connected to the first touch line TL1 disposed in the light-emitting region EA. Here, the first touch line TL1 can be spaced further away from the multiple data lines DL than the second touch line TL2. The compensation electrode CE can be made of a transparent conductive material and extends from the light-emitting region EA to the transmission region TA. In particular, the end of the compensation electrode CE disposed in the transmission region TA can overlap with the cathode CT of the light-emitting diode OLED. Therefore, a capacitance Cp3 can be generated between the compensation electrode CE and the cathode CT. Therefore, the compensation electrode CE can compensate for the capacitance difference between the first touch line TL1 and the second touch line TL2.

[0076] In addition, such as Figure 3 As shown, two compensation electrodes CE can be provided in a single pixel PX. That is, compensation electrodes CE can be provided on one side and the other side of the pixel PX. For example, the compensation electrode CE provided on one side of the pixel PX can be provided at the boundary between the transmissive region TA and the luminous region EA on one side of the pixel PX. The compensation electrode CE provided on the other side of the pixel PX can be provided at the boundary between the transmissive region TA and the luminous region EA on the other side of the pixel PX.

[0077] Specifically, the compensation electrode CE, located on the other side of pixel PX, is electrically connected to the fourth touch line TL4 located in the light-emitting region EA. Here, the fourth touch line TL4 is spaced further away from the multiple data lines DL compared to the third touch line TL3. The compensation electrode CE can be made of a transparent conductive material and extends from the light-emitting region EA to the transmission region TA. In particular, the end of the compensation electrode CE located in the transmission region TA can overlap with the cathode CT of the light-emitting diode OLED. Therefore, a capacitance can be generated between the compensation electrode CE and the cathode CT. Thus, the compensation electrode CE can compensate for the capacitance difference between the fourth touch line TL4 and the third touch line TL3.

[0078] in addition, Figure 3 The compensation electrode CE is shown positioned below pixel PX, but this disclosure is not limited thereto. That is, the position of the compensation electrode CE can vary depending on the design of the display device 100. Furthermore, Figure 3The diagram shows compensation electrodes CE connected to the first touch line TL1 and the fourth touch line TL4, respectively, having the same dimensions, but this disclosure is not limited thereto. That is, if there is a difference in capacitance generated at the first touch line TL1 and the fourth touch line TL4 due to their different positions, the compensation electrodes CE may have different dimensions. For example, if the capacitance generated at the first touch line TL1 is less than the capacitance generated at the fourth touch line TL4, the size of the compensation electrode CE connected to the first touch line TL1 may be larger than the size of the compensation electrode CE connected to the fourth touch line TL4.

[0079] A first passivation layer 114 is disposed on the transistor TR, multiple data lines DL, and compensation electrode CE. The first passivation layer 114 may be formed as a single layer or multiple layers of silicon nitride (SiNx) or silicon oxide (SiOx) as inorganic materials, but is not limited thereto. Contact holes for contact between the drain electrode DE and the anode AN of the light-emitting diode OLED may be formed in the first passivation layer 114.

[0080] A high-potential power line VDD and a low-potential power line VSS are disposed on the first passivation layer 114. The high-potential power line VDD and the low-potential power line VSS may be disposed in the light-emitting region EA. The high-potential power line VDD and the low-potential power line VSS may be made of the same material using the same process on the first passivation layer 114. For example, the high-potential power line VDD and the low-potential power line VSS may be made of conductive materials such as copper (Cu), aluminum (Al), molybdenum (Mo), nickel (Ni), titanium (Ti), chromium (Cr), or alloys thereof, but are not limited thereto.

[0081] A high-potential power line VDD is a line configured to deliver a high-potential power supply voltage to each of a plurality of sub-pixels SP. The plurality of sub-pixels SP forming a single pixel PX can share a single high-potential power line VDD. For example, a single high-potential power line VDD can deliver a high-potential power supply voltage to each of the first sub-pixel SP1, the second sub-pixel SP2, the third sub-pixel SP3, and the fourth sub-pixel SP4. The high-potential power line VDD can be configured to overlap with the first touch line TL1 and the second touch line TL2. Therefore, the high-potential power line VDD can suppress the generation of parasitic capacitances between the first touch line TL1 and the anode AN, and between the second touch line TL2 and the anode AN.

[0082] A low-potential power line (VSS) is a line configured to deliver a low-potential power supply voltage to each of a plurality of sub-pixels (SPs). In this case, the cathode (CT) can be a common layer formed throughout the entire light-emitting area (EA). Therefore, the plurality of sub-pixels (SPs) forming a single pixel (PX) can share a single low-potential power line (VSS). For example, the single low-potential power line (VSS) can deliver a low-potential power supply voltage to each of the first sub-pixel (SP1), the second sub-pixel (SP2), the third sub-pixel (SP3), and the fourth sub-pixel (SP4) via the cathode (CT) as a common layer. The low-potential power line (VSS) can be configured to overlap with the third touch line (TL3) and the fourth touch line (TL4). Therefore, the low-potential power line (VSS) can suppress the generation of parasitic capacitances between the third touch line (TL3) and the anode (AN) and between the fourth touch line (TL4) and the anode (AN).

[0083] The second passivation layer 115 is disposed on the high-potential power line VDD and the low-potential power line VSS. The second passivation layer 115 may be formed as a single layer or multiple layers of silicon nitride (SiNx) or silicon oxide (SiOx) as inorganic materials, but is not limited thereto. Contact holes for contact between the drain electrode DE and the anode AN of the light-emitting diode OLED may be formed in the second passivation layer 115.

[0084] A planarization layer 116 is disposed on the second passivation layer 115. The planarization layer 116 is an insulating layer configured to planarize the upper part of the substrate 110. The planarization layer 116 may be made of an organic material and may be formed as a single layer or multiple layers of, for example, polyimide or optical acrylic, but is not limited thereto.

[0085] The planarization layer 116 may include an opening OP corresponding to the transmission region TA. The opening OP may expose a portion of the second passivation layer 115. Here, the width of the opening OP may increase from top to bottom. That is, the upper portion of the planarization layer 116 may protrude further toward the opening OP than the lower portion of the planarization layer 116. Therefore, an undercut region may be formed at the lower portion of the opening OP through the protruding upper portion of the planarization layer 116. The light-emitting layer EL and the cathode CT, which will be described later, may be cut off by the undercut region at the region corresponding to the opening OP. This will be described later.

[0086] The light-emitting diode (OLED) is disposed on the planarization layer 116. The OLED can be disposed in the light-emitting region EA. The OLED can be disposed in each of a plurality of sub-pixels SP. The OLED includes an anode AN, a light-emitting layer EL, and a cathode CT.

[0087] The anode AN is disposed on the planarization layer 116 corresponding to each of the multiple sub-pixels SP. The anode AN is disposed only in the light-emitting region EA, and not in the transmissive region TA. The anode AN may be electrically connected to the drain electrode DE of the transistor TR. However, depending on the type of transistor TR and the design method of the driver circuit, the anode AN may also be electrically connected to the source electrode SE of the transistor TR. The anode AN may be made of a conductive material with a high work function to provide holes to the light-emitting layer EL. For example, the anode AN may be formed with a multilayer structure, which includes a transparent conductive layer and an opaque conductive layer with high reflectivity. The transparent conductive layer may be made of a material with a relatively high work function value, such as indium tin oxide (ITO) or indium zinc oxide (IZO). The opaque conductive layer may be formed as a single layer or multiple layers containing Al, Ag, Cu, Pb, Mo, Ti or alloys thereof. However, the material of the anode AN is not limited to these.

[0088] A dam 117 is disposed on the anode AN and the planarization layer 116. The dam 117 can be formed on the planarization layer 116 to cover the edge of the anode AN. The dam 117 is an insulating layer disposed between multiple sub-pixels SP to distinguish the multiple sub-pixels SP. The dam 117 can be disposed at the boundary between adjacent sub-pixels SP to suppress the mixing of colors of light emitted from the light-emitting diodes (OLEDs) of the multiple sub-pixels SP respectively. Furthermore, the dam 117 can be disposed at the boundary between the light-emitting region EA and the transmission region TA to distinguish the light-emitting region EA and the transmission region TA. The dam 117 can be made of an organic insulating material. For example, the dam 117 can be made of one of the following: acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenyl resin, polyphenylene sulfide resin, benzocyclobutene, and photoresist, but is not limited thereto.

[0089] The light-emitting layer EL is disposed on the anode AN and the embankment 117. The light-emitting layer EL can be formed over the entire surface of the substrate 110. That is, the light-emitting layer EL can be a common layer commonly formed in multiple sub-pixels SP. In addition, a portion of the light-emitting layer EL can also be disposed in the transmission region TA. The light-emitting layer EL can be an organic layer for emitting light of a specific color. For example, the light-emitting layer EL can be one of a red light-emitting layer, a green light-emitting layer, a blue light-emitting layer, and a white light-emitting layer. When the light-emitting layer EL is a white light-emitting layer, a color filter can be further disposed on the light-emitting diode OLED. The light-emitting layer EL can further include various layers, such as a hole transport layer, a hole injection layer, a hole blocking layer, an electron injection layer, an electron blocking layer, an electron transport layer, etc.

[0090] The cathode CT is disposed on the light-emitting layer EL. The cathode CT can be formed over the entire surface of the substrate 110. That is, the cathode CT can be a common layer commonly formed in multiple sub-pixels SP. In addition, a portion of the cathode CT can also be disposed in the transmission region TA. The cathode CT provides electrons to the light-emitting layer EL, therefore the cathode CT can be made of a conductive material with a low work function. The cathode CT can be made, for example, of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO), a metal alloy such as MgAg, or a ytterbium (Yb) alloy. The cathode CT may further include a metal doped layer, but is not limited thereto.

[0091] Since the light-emitting layer EL and the cathode CT are formed over the entire surface of the substrate 110, a portion of the light-emitting layer EL and a portion of the cathode CT can also be disposed in the transmission region TA.

[0092] A virtual organic layer DM is disposed within the opening OP of the planarization layer 116. The virtual organic layer DM can be disposed on the second passivation layer 115. The virtual organic layer DM can be disposed in the transmission region TA. The virtual organic layer DM can be made from the same material as the light-emitting layer EL using the same process. Here, the virtual organic layer DM and the light-emitting layer EL are spaced apart from each other, and therefore electrically insulated from each other.

[0093] The touch electrode TE is disposed within the opening OP of the planarization layer 116. The touch electrode TE can be configured to cover the virtual organic layer DM. The touch electrode TE can be disposed in the transmission region TA. The touch electrode TE can be manufactured from the same material as the cathode CT using the same process. Here, the touch electrode TE and the cathode CT are spaced apart from each other and therefore electrically insulated from each other.

[0094] The opening OP of the planarization layer 116 may include an undercut region. That is, the upper part of the planarization layer 116 may protrude further toward the opening OP than the lower part of the planarization layer 116. Therefore, the opening OP may include an undercut region shielded by the protruding upper part of the planarization layer 116. When depositing the light-emitting layer EL and the cathode CT over the entire surface of the substrate 110, it is difficult to deposit the light-emitting layer EL and the cathode CT on the undercut region. Therefore, the light-emitting layer EL and the cathode CT disposed on the planarization layer 116 may be disposed discontinuously on one side and the other side of the opening OP. Furthermore, when depositing the light-emitting layer EL, a virtual organic layer DM made of the same material as the light-emitting layer EL may be disposed within the opening OP. The light-emitting layer EL and the virtual organic layer DM may be cut off from each other. When depositing the cathode CT, a touch electrode TE made of the same material as the cathode CT may be disposed within the opening OP. The cathode CT and the touch electrode TE may be cut off from each other.

[0095] Depending on the position of each touch line among the multiple touch lines, there are differences in the total capacitance between the multiple touch lines, which can lead to a decrease in touch sensing accuracy. Specifically, the difference in capacitance between the multiple touch lines is most affected by the distance between the data line and the multiple touch lines, the distance between the high-potential power line and the multiple touch lines, or the distance between the low-potential power line and the multiple touch lines.

[0096] In a display device 100 according to an exemplary embodiment of the present disclosure, a compensation electrode CE may be provided to minimize the capacitance difference between multiple touch lines TL. Therefore, the total capacitance of each touch line in the multiple touch lines TL can be uniform, which can improve touch sensing accuracy.

[0097] Specifically, the second touch line TL2 is positioned closer to the first data line DL1 than the first touch line TL1. Therefore, the capacitance Cp2 between the second touch line TL2 and the first data line DL1 is greater than the capacitance Cp1 between the first touch line TL1 and the first data line DL1. To compensate for this difference, the first touch line TL1 can be electrically connected to the compensation electrode CE. That is, the total capacitance of the first touch line TL1 can be increased through the compensation electrode CE. One end of the compensation electrode CE can be electrically connected to the first touch line TL1, and the other end of the compensation electrode CE can overlap with the cathode CT of the light-emitting diode OLED. Therefore, a capacitance Cp3 can be generated between the compensation electrode CE and the cathode CT. In this case, the sum of the capacitance Cp1 between the first touch line TL1 and the first data line DL1 and the capacitance Cp3 between the compensation electrode CE and the cathode CT can be equal to the capacitance Cp2 between the second touch line TL2 and the first data line DL1. Therefore, the difference in capacitance between the first touch line TL1 and the second touch line TL2 can be minimized.

[0098] In addition, such as Figure 3 As shown, each pixel PX may include two compensation electrodes CE. That is, one of the multiple compensation electrodes CE may be electrically connected to the first touch line TL1, and the other compensation electrode CE may be electrically connected to the fourth touch line TL4. Compared to the third touch line TL3, the fourth touch line TL4 may be positioned further away from the fourth data line DL4. Therefore, the capacitance between the fourth touch line TL4 and the fourth data line DL4 is less than the capacitance between the third touch line TL3 and the fourth data line DL4. Therefore, the total capacitance of the fourth touch line TL4 can be increased by the compensation electrode CE electrically connected to it. In other words, the capacitance difference between the third touch line TL3 and the fourth touch line TL4 can be minimized by the capacitance generated between the compensation electrode CE and the cathode CT.

[0099] In a display device 100 according to an exemplary embodiment of the present disclosure, a compensation electrode CE can be provided in each of a plurality of pixels PX. That is, the compensation electrode CE connected to a single touch line TL is not provided at a single specific point, but multiple compensation electrodes CE can be provided in the plurality of pixels PX, such that multiple compensation electrodes CE can be connected to a single touch line TL. If the compensation electrode used to compensate for capacitance differences is provided at a single specific point of the touch line TL, the output amount sensed at the area corresponding to the compensation electrode will increase significantly. In this case, the sensed output amount will exceed the normal output range. As a result, changes in touch may not be detected. Therefore, in the display device 100 according to an exemplary embodiment of the present disclosure, the compensation capacitance generated by the compensation electrode CE can be uniformly distributed throughout the plurality of pixels PX. Therefore, the significant increase in the output amount of the touch line TL at a specific point can be suppressed. That is, the output amount from the touch line TL can be uniform throughout the entire touch line. Therefore, the sensing accuracy of the touch line TL can be improved, and the quality of the display device 100 can be improved.

[0100] In a display device 100 according to an exemplary embodiment of the present disclosure, the compensation electrode CE can be made of a transparent conductive material. Therefore, the compensation electrode CE can extend from the light-emitting region EA, where the touch line TL is provided, to the transmissive region TA. Here, opaque electrodes or lines for driving multiple sub-pixels SP are not provided in the transmissive region TA. Therefore, the compensation electrode CE can be formed within the transmissive region TA, thereby having sufficient area to compensate for the capacitance of the touch line TL. Furthermore, the compensation electrode CE does not affect the design of components in the light-emitting region EA. Therefore, the compensation electrode CE can be easily formed within the pixel PX.

[0101] The display device 100 according to an exemplary embodiment of this disclosure can be a display device with an embedded touch structure. That is, the structure for implementing touch sensing is not formed separately, but is formed together with other components within the display device 100 through a continuous process. Specifically, multiple touch lines TL can be formed using the same process as the light-shielding layer LS. In addition, multiple touch electrodes TE can be formed using the same process as the cathode CT. Therefore, the touch structure can be implemented within the display device 100 through a simple process at the lowest cost.

[0102] Figure 5 This is a plan view illustrating a display device according to another exemplary embodiment of the present disclosure. Figure 6 It is along Figure 5 The cross-sectional view taken from line VI-VI'. Figure 5 and Figure 6 The display device 500 shown is Figures 1 to 4The display device 100 shown is basically the same, except for the multiple touch lines TL and the compensation electrode CE. Therefore, redundant descriptions of it will be omitted.

[0103] Reference Figure 5 and Figure 6 The display device 500 includes multiple touch lines TL, and at least one of the multiple touch lines TL is electrically connected to a compensation electrode CE.

[0104] Multiple touch lines TL may include a first touch line TL1, a second touch line TL2, a third touch line TL3, and a fourth touch line TL4. In this case, the first touch line TL1 and the second touch line TL2 may be disposed adjacent to a transmissive area TA disposed on one side of the light-emitting area EA. The third touch line TL3 and the fourth touch line TL4 may be disposed adjacent to a transmissive area TA disposed on the other side of the light-emitting area EA.

[0105] The second touch line TL2 can be configured to be closer to the first data line DL1 than the first touch line TL1. The second touch line TL2 can have a wider width than the first touch line TL1. The third touch line TL3 can be configured to be closer to the fourth data line DL4 than the fourth touch line TL4. The third touch line TL3 can have a wider width than the fourth touch line TL4.

[0106] The compensation electrode CE is electrically connected to the first touch line TL1 disposed in the light-emitting region EA. The compensation electrode CE may be made of a transparent conductive material and extends from the light-emitting region EA to the transmission region TA. A portion of the compensation electrode CE disposed in the transmission region TA may overlap with the cathode CT. Furthermore, the end of the compensation electrode CE disposed in the transmission region TA may overlap with the touch electrode TE. Therefore, a capacitance Cp3 can be generated between the compensation electrode CE and the cathode CT. Furthermore, a capacitance Cp4 can be generated between the compensation electrode CE and the touch electrode TE. Thus, the compensation electrode CE can compensate for the capacitance difference between the first touch line TL1 and the second touch line TL2.

[0107] Furthermore, the compensation electrode CE can be electrically connected to the fourth touch line TL4 disposed in the light-emitting region EA. The compensation electrode CE can be made of a transparent conductive material and extends from the light-emitting region EA to the transmission region TA. A portion of the compensation electrode CE disposed in the transmission region TA can overlap with the cathode CT. Furthermore, the end of the compensation electrode CE disposed in the transmission region TA can overlap with the touch electrode TE. Therefore, a capacitance can be generated between the compensation electrode CE and the cathode CT. Additionally, a capacitance can be generated between the compensation electrode CE and the touch electrode TE. Therefore, the compensation electrode CE can compensate for the capacitance difference between the fourth touch line TL4 and the third touch line TL3.

[0108] In a display device 500 according to another exemplary embodiment of the present disclosure, a compensation electrode CE may be provided to minimize the capacitance difference between multiple touch lines TL. In this case, one end of the compensation electrode CE may be provided in the light-emitting region EA, and the other end of the compensation electrode CE may be provided in the transmissive region TA. In particular, the other end of the compensation electrode CE may overlap with the touch electrode TE in the transmissive region TA. Therefore, the capacitance difference between the multiple touch lines TL can be minimized by the capacitance generated between the compensation electrode CE and the touch electrode TE.

[0109] Furthermore, a portion of the cathode CT is also disposed within the transmission region TA, thus the compensation electrode CE can overlap with the cathode CT within the transmission region TA. That is, the capacitance generated by the compensation electrode CE can include: capacitance Cp3 between the compensation electrode CE and the cathode CT, and capacitance Cp4 between the compensation electrode CE and the touch electrode TE. In this case, touch lines TL1 and TL4 connected to the compensation electrode CE can have a smaller width than touch lines TL2 and TL3 not connected to the compensation electrode CE. Therefore, the sum of the capacitances generated by the first touch line TL1 can be similar to the sum of the capacitances generated by the second touch line TL2. Furthermore, the sum of the capacitances generated by the fourth touch line TL4 can be similar to the sum of the capacitances generated by the third touch line TL3. Therefore, the difference in capacitance between multiple touch lines TL can be minimized, which improves touch sensing accuracy.

[0110] Exemplary embodiments of this disclosure can also be described as follows:

[0111] According to one aspect of this disclosure, a display device includes: a substrate having a plurality of pixels, each pixel including a light-emitting region and a transmissive region. Furthermore, the display device includes a plurality of touch lines in the light-emitting region and a plurality of data lines in the light-emitting region. Additionally, the display device includes a compensation electrode electrically connected to at least one of the plurality of touch lines. Furthermore, the display device includes a planarization layer on the plurality of touch lines and the plurality of data lines, the planarization layer including an opening corresponding to the transmissive region. Furthermore, the display device includes a light-emitting diode on the planarization layer in the light-emitting region and a touch electrode disposed within the opening in the transmissive region. The plurality of touch lines includes a first touch line and a second touch line closer to the plurality of data lines than the first touch line. The compensation electrode is electrically connected to the first touch line.

[0112] The multiple touch lines and the multiple data lines can be placed on different insulation layers.

[0113] The compensation electrode can extend from the light-emitting region to the transmission region.

[0114] One end of the compensation electrode can be electrically connected to the first touch line in the light-emitting area, and the other end of the compensation electrode can overlap with the cathode of the light-emitting diode in the transmission area.

[0115] One end of the compensation electrode can be electrically connected to the first touch line in the light-emitting area, and the other end of the compensation electrode can overlap with the touch electrode in the transmission area.

[0116] The second touch line may have a width greater than that of the first touch line.

[0117] The anode of the light-emitting diode may be located only in the light-emitting region, which is between the light-emitting region and the transmission region.

[0118] The compensation electrode may be made of a transparent conductive material.

[0119] The display device may further include a virtual organic layer disposed within the opening in the transmissive region and made of the same material as the light-emitting layer of the light-emitting diode. The touch electrode may be disposed on the virtual organic layer.

[0120] The virtual organic layer and the light-emitting layer may be spaced apart from each other.

[0121] The touch electrode and the cathode of the light-emitting diode can be made of the same material.

[0122] The touch electrode and the cathode may be spaced apart from each other.

[0123] The touch electrode and the cathode may be made of a transparent conductive material.

[0124] The width of the opening can increase from top to bottom, so that an undercut region is formed at the bottom of the opening.

[0125] Multiple compensation electrodes may be provided in the plurality of pixels, such that the plurality of compensation electrodes are electrically connected to the first touch line.

[0126] Although exemplary embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the present disclosure is not limited thereto and may be implemented in many different forms without departing from the technical concept of the present disclosure. Therefore, the exemplary embodiments of the present disclosure are provided for illustrative purposes only and are not intended to limit the technical concept of the present disclosure. The scope of the technical concept of the present disclosure is not limited thereto. Therefore, it should be understood that the above exemplary embodiments are exemplary in all respects and do not limit the present disclosure. The scope of protection of the present disclosure should be interpreted based on the appended claims, and all technical concepts within the equivalent scope thereof should be interpreted as falling within the scope of the present disclosure.

Claims

1. A display device, comprising: A substrate having multiple pixels, each pixel including a light-emitting area and a transmission area; Multiple touch lines in the light-emitting area; Multiple data lines in the light-emitting area; Electrically connected to the compensation electrode of at least one of the plurality of touch lines; A planarization layer on the plurality of touch lines and the plurality of data lines, the planarization layer including an opening corresponding to the transmissive region; Light-emitting diodes on the planarization layer in the light-emitting region; as well as The touch electrode is disposed within the opening in the transmission region. The plurality of touch lines include a first touch line and a second touch line that is closer to the plurality of data lines than the first touch line, and The compensation electrode is electrically connected to the first touch line. One end of the compensation electrode is electrically connected to the first touch line in the light-emitting region, and the other end of the compensation electrode overlaps with the cathode of the light-emitting diode in the transmission region, or One end of the compensation electrode is electrically connected to the first touch line in the light-emitting region, and the other end of the compensation electrode overlaps with the touch electrode in the transmission region.

2. The display device according to claim 1, wherein the plurality of touch lines and the plurality of data lines are disposed on different insulating layers.

3. The display device according to claim 1, wherein the second touch line has a width greater than the width of the first touch line.

4. The display device according to claim 1, wherein the anode of the light-emitting diode is disposed only in the light-emitting region, which is between the light-emitting region and the transmission region.

5. The display device according to claim 1, wherein the compensation electrode is made of a transparent conductive material.

6. The display device according to claim 1, further comprising: A virtual organic layer, disposed within the opening in the transmission region and made of the same material as the light-emitting layer of the light-emitting diode, The touch electrodes are disposed on the virtual organic layer.

7. The display device according to claim 6, wherein the virtual organic layer and the light-emitting layer are spaced apart from each other.

8. The display device according to claim 1, wherein the touch electrode and the cathode of the light-emitting diode are made of the same material.

9. The display device according to claim 8, wherein the touch electrode and the cathode are spaced apart from each other.

10. The display device according to claim 8, wherein the touch electrode and the cathode are made of a transparent conductive material.

11. The display device according to claim 1, wherein the width of the opening increases from top to bottom, such that an undercut region is formed at the lower part of the opening.

12. The display device according to claim 1, wherein a plurality of the compensation electrodes are disposed in the plurality of pixels such that the plurality of compensation electrodes are electrically connected to the first touch line.

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