Display device

Abstract

To provide a display apparatus capable of selectively controlling a viewing angle and improving optical characteristics.SOLUTION: A display apparatus comprises: a pixel array including a pixel circuit and a plurality of subpixels including a first light-emitting element and a second light-emitting element that are connected to the pixel circuit; an encapsulation layer disposed on the pixel array to seal a light-emitting element layer including the first and second light-emitting elements; a touch sensor array including a black matrix, a sensor electrode, and a dummy electrode disposed on the encapsulation layer and overlapping a non-emission area of the pixel array; and a light control array disposed on the touch sensor array and including a first light control element overlapping the first light-emitting element and a second light control element overlapping the second light-emitting element. The sensor electrode can be disposed in a non-emission area of a first type subpixel among the plurality of subpixels, and the dummy electrode can be disposed in a non-emission area of a second type subpixel and a third type subpixel among the plurality of subpixels.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This specification relates to a display device capable of controlling the viewing angle.

Background Art

[0002] Display devices can be used in various electronic devices. A display device can incorporate a touch sensor.

[0003] Among the display devices mounted in automobiles, the display device arranged in front of the passenger seat needs to limit the viewing angle for the driver according to the driving situation of the driver. The display device needs to limit the viewing angle according to the user's request for privacy protection and information protection.

[0004] The display device can limit the viewing angle of the display image using a security film. However, the security film significantly reduces the brightness of the display device, and the viewing angle limitation is fixed, which may cause inconvenience to the user.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This specification provides a display device that can selectively control the viewing angle and improve the optical characteristics.

[0006] The problems to be solved in various embodiments of this specification are not limited to the above problems, and other problems not mentioned will be clearly understood by those of ordinary skill in the technical field to which the technical idea of this specification belongs from the following description.

Means for Solving the Problems

[0007] A display device according to one embodiment of this specification includes a pixel circuit, a pixel array including a plurality of subpixels including a first light-emitting element and a second light-emitting element connected to the pixel circuit, a sealing layer disposed on the pixel array to seal the light-emitting layer including the first and second light-emitting elements, a touch sensor array disposed on the sealing layer and superimposed on the non-emitting region of the pixel array and including a black matrix, sensor electrodes and dummy electrodes, and an optical control array disposed on the touch sensor array and superimposed on the first light-emitting element and superimposed on the second light-emitting element, wherein the sensor electrodes can be disposed in the non-emitting region of a first type subpixel among the plurality of subpixels, and the dummy electrodes can be disposed in the non-emitting region of a second type subpixel and a third type subpixel among the plurality of subpixels.

[0008] Specific details regarding various embodiments other than the solutions to the problems described above are included in the following description and figures.

[0009] The display device according to one embodiment can not only control the viewing angle according to the user's needs by separately driving the light-emitting elements of each subpixel, but also appropriately arrange the black matrix, sensor electrodes, and dummy electrodes that function as light barriers in the touch sensor array so as to be superimposed and non-superimposed with the light control elements in the non-light-emitting areas, thereby ensuring narrow and wide viewing angle characteristics through viewing angle control, and can improve display performance such as brightness and display quality by blocking light leakage due to stray and reflected light.

[0010] In one embodiment, the display device can improve touch sensing sensitivity by maximizing the area of ​​the sensor electrodes and dummy electrodes placed in the non-light-emitting region of the touch sensor array, thereby improving touch sensing performance.

[0011] A display device according to one embodiment can improve display performance, such as display quality, by differentiating the size of the light-emitting area according to wavelength and minimizing color differences such as yellowish tint near the cutoff angle of the viewing angle due to the difference in refractive index of the optical control element according to wavelength.

[0012] A display device according to one embodiment can also achieve low power consumption by improving touch sensing performance and display performance.

[0013] The effects described herein are not limited to those mentioned above, and other effects not mentioned herein can be clearly understood by a person with ordinary skill in the art to which this specification pertains from the following description. [Brief explanation of the drawing]

[0014] [Figure 1] This diagram schematically shows the configuration of a display device according to one embodiment. [Figure 2] This is a schematic cross-sectional view showing the structure of a display panel according to one embodiment. [Figure 3] This figure schematically shows the configuration of a subpixel according to one embodiment. [Figure 4A] Figure 4A illustrates the structure of the first and second optical control elements according to one embodiment. [Figure 4B] Figure 4B illustrates the structure of the first and second optical control elements according to one embodiment. [Figure 5] This figure illustrates a vehicle display device to which a display device according to one embodiment is applied. [Figure 6] This is an equivalent circuit diagram illustrating the configuration of a subpixel according to one embodiment. [Figure 7] This figure illustrates the subpixel driving waveform according to one embodiment. [Figure 8] This is a plan view showing an enlarged view of the structure of area A of the display panel according to one embodiment shown in Figure 1. [Figure 9]It is a plan view showing the structure of the A region shown in FIG. 8 including a black matrix. [Figure 10] It is a plan view showing an enlarged structure of the pixel region among the A regions shown in FIG. 8. [Figure 11] It is a plan view showing the structure of the pixel region shown in FIG. 10 including a black matrix. [Figure 12] It is a cross-sectional view showing the structure of the sub-pixel region along the I-I' cut line in the pixel region shown in FIG. 11. [Figure 13] It is a cross-sectional view showing another structure of the sub-pixel region according to an embodiment. [Figure 14] It is a plan view showing an enlarged structure of the contact portion in the pixel region shown in FIG. 11. [Figure 15] It is a cross-sectional view showing the structure of the contact portion along the II-II' cut line shown in FIG. 14. [Figure 16A] FIG. 16A is a diagram showing a comparison of the light propagation paths in the sub-pixel regions of the display panels according to the comparative example and an embodiment. [Figure 16B] FIG. 16B is a diagram showing a comparison of the light propagation paths in the sub-pixel regions of the display panels according to the comparative example and an embodiment. [Figure 17] It is a graph showing the light leakage reduction effect of the display device according to an embodiment compared with the comparative example. [Figure 18] It is a cross-sectional view schematically showing the sub-pixel structure of the display panel according to an embodiment. [Figure 19] It is a cross-sectional view schematically showing the sub-pixel structure of the display panel according to an embodiment. [Figure 20] It is a graph showing the effect of improving the viewing angle cut-off ratio of the display device according to an embodiment. [Figure 21A] FIG. 21A is a graph showing the color difference reduction effect of the display device according to an embodiment compared with the comparative example. [Figure 21B]Figure 21B is a graph showing the effect of reducing color perception difference in a display device according to one embodiment compared to a comparative example. [Modes for carrying out the invention]

[0015] The advantages and features of this specification, as well as the methods for achieving them, will become apparent by referring to the examples described below in detail with accompanying figures. However, this specification is not limited to the examples disclosed below, but can be embodied in a variety of different forms, and these examples are provided merely to complete the disclosure of this specification and to fully inform those who have ordinary skill in the art to which this specification belongs of the scope of the invention, and this specification is defined only by the scope of the claims.

[0016] The shapes, sizes, proportions, angles, numbers, etc., disclosed in the figures illustrating the embodiments of this specification are illustrative, and this specification is not limited to what is shown in the figures. Throughout the specification, the same reference numeral refers to the same component. Where a specific description of the relevant prior art would unnecessarily obscure the gist of this specification, such detailed description is omitted. Where "includes," "has," "consists of," etc., used herein, other parts may be added unless "only" is used. When a component is expressed singularly, it includes multiple components unless otherwise explicitly stated.

[0017] In interpreting the constituent elements, even if there is no separate explicit mention of the error range, it shall be interpreted as including the error range.

[0018] When describing spatial relationships, for example, when the positional relationship between two parts is described using phrases such as "above," "above," "below," or "beside," one or more other parts may be located between the two parts, unless the expressions "immediately" or "directly" are used.

[0019] When describing temporal relationships, for example, when a temporal sequence is described using phrases like "after," "following," "next," or "before," it can include non-continuous events unless expressions like "immediately" or "directly" are used.

[0020] The terms "first," "second," etc., are used to describe various components, but these components are not limited by these terms. These terms are simply used to distinguish one component from another. Therefore, the first component referred to below may also be the second component within the technical concept of this specification.

[0021] In describing the components of this specification, terms such as 1st, 2nd, A, B, a, b, etc., may be used. Such terms are used solely to distinguish a component from other components, and do not limit the nature, order, sequence, or number of the components. Where it is stated that a component "connects," "joins," or "links" another component, it should be understood that the component can connect or link directly to the other component, but that other components may "intersect" between each component that can connect or link indirectly, unless otherwise explicitly stated.

[0022] The term "at least one" should be understood to include all combinations of one or more of the related components. For example, "at least one of the first, second, and third components" may mean not only the first, second, or third component, but also all combinations of two or more of the first, second, and third components.

[0023] Each feature of some of the embodiments described herein can be combined or combined with one another, either partially or as a whole, and various technical interdependencies and drives are possible. Each embodiment can be implemented independently of one another or together in a related manner.

[0024] The embodiments of this specification will be described in detail below through the attached figures and examples. The scales of the components shown in the figures are different from those of actual components for the sake of explanation and are not limited to the scales shown in the figures.

[0025] Figure 1 is a schematic diagram showing the configuration of a display device according to one embodiment, Figure 2 is a schematic cross-sectional view showing the structure of a display panel according to one embodiment, Figure 3 is a schematic diagram showing the configuration of subpixels according to one embodiment, Figures 4A and 4B are diagrams illustrating the structures of the first and second optical control elements according to one embodiment, and Figure 5 is a diagram illustrating a vehicle display device to which the display device according to one embodiment is applied.

[0026] A display device 1000 according to one embodiment can provide both a display function for displaying images and a touch sensing function for sensing whether or not a user touches the device and / or the touch coordinates.

[0027] The display device 1000 according to one embodiment may be an electroluminescent display device or a micro light-emitting diode display device including a touch sensor. The electroluminescent display device including a touch sensor may be an organic light-emitting diode (OLED) display device, a quantum-dot light-emitting diode display device, or an inorganic light-emitting diode display device.

[0028] Referring to Figure 1, the display device 1000 may include a display panel 100, a display driver circuit 200 for driving the display panel 100, and a touch sensing circuit 300 for driving and sensing a touch sensor array built into the display panel 100. The display device 1000 may further include a power management circuit that generates and supplies multiple power voltages necessary for the operation of the display panel 100, the display driver circuit 200, and the touch sensing circuit 300.

[0029] The display panel 100 may be a rigid display panel or a flexible display panel that can change shape, such as a foldable, bendable, rollable, or stretchable display panel.

[0030] The display panel 100 may include a display area (DA) for displaying images and a non-display area (NDA), which is a bezel area located on the outer perimeter surrounding the display area (DA). The display panel 100 may further include a touch sensor array positioned in the display area (DA) to sense user touch.

[0031] The display panel 100 can display images using a display area (DA) in which multiple subpixels are arranged in a matrix. The pixel matrix of the display area (DA) may include multiple row lines consisting of multiple subpixels arranged in a first direction (X) and multiple column lines consisting of multiple subpixels arranged in a second direction (Y). The display panel 100 may include multiple signal lines, such as multiple gate lines, multiple data lines, and multiple power lines, which are connected to the multiple subpixels.

[0032] Multiple subpixels may include red subpixels that emit red light, green subpixels that emit green light, and blue subpixels that emit blue light. Multiple subpixels may further include white subpixels that emit white light. A unit pixel may contain at least two subpixels.

[0033] The display driving circuit 200 may include a data driver that supplies data signals to multiple data lines of the display panel 100, a gate driver that supplies gate signals to multiple gate lines, and a timing controller that controls the operation of the data driver and the gate driver.

[0034] The touch sensing circuit 300 may include a touch drive circuit that supplies a touch drive signal to a touch sensor array built into the display panel 100, receives a readout signal from the touch sensor array and generates sensing data, and a touch controller that detects the presence or absence of a touch and the touch coordinate position based on the sensing data supplied from the touch drive circuit.

[0035] The touch sensor array can use either a self-capacitance method that senses changes in self-capacitance caused by touch, or a mutual-capacitance method that senses changes in mutual capacitance caused by touch.

[0036] In one embodiment, the display panel 100 may be capable of controlling the viewing angle according to the viewing angle mode. The display area (DA) of the display panel 100 can display images in a first viewing angle mode in which the viewing angle in the first direction is relatively wide, or in a second viewing angle mode in which the viewing angle in the first direction is narrower than that of the first viewing angle mode. The first viewing angle mode can be expressed as a wide viewing angle mode or a shared mode. The second viewing angle mode can be expressed as a narrow viewing angle mode or a privacy mode. The display area (DA) of the display panel 100 can be driven in a switchable privacy mode (SPM) that can switch between shared mode and privacy mode.

[0037] Referring to Figure 2, a display panel 100 according to one embodiment may include a pixel array 140 including a circuit element layer 120 containing a plurality of transistors and a plurality of signal lines disposed on a substrate 110, and a light-emitting element layer 130 containing a plurality of light-emitting elements (EL1, EL2) disposed on the circuit element layer 120, and a sealing layer 150 disposed on the pixel array 140 to seal the light-emitting element layer 130. The display panel 100 may also include a touch sensor array 160 containing a plurality of sensor electrodes disposed on the sealing layer 150, and an optical control array 170 containing a plurality of optical control elements (L1, L2) disposed on the touch sensor array 160. The display panel 100 may further include a cover substrate 190 bonded to the optical control array 170 by an optical clear adhesive (OCA) 180.

[0038] A touch sensor array 160 according to one embodiment may include sensor electrodes, dummy electrodes, and a black matrix arranged to overlap with the non-emitting regions of the light-emitting elements (EL1, EL2). At least one of the sensor electrodes, dummy electrodes, and black matrix according to one embodiment can function as a barrier to block light by overlapping with the edges of the light control elements (L1, L2), thereby preventing light leakage due to leaked or reflected light. At least one of the sensor electrodes, dummy electrodes, and black matrix according to one embodiment can overlap with the edge of the light control element (L1) for a wide viewing angle, thereby preventing limitations on the wide viewing angle. A more detailed explanation of this will be given later.

[0039] Referring to Figures 2 and 3, a subpixel (SP) according to one embodiment capable of controlling the viewing angle includes a first light-emitting element (EL1), a second light-emitting element (EL2), and a pixel circuit 10 that separately drives the first and second light-emitting elements (EL1, EL2) according to the viewing angle mode. A first optical control element (L1, Figure 2) can be superimposed on the first light-emitting element (EL1), and a second optical control element (L1, Figure 2) can be superimposed on the second light-emitting element (EL2).

[0040] In one embodiment, a subpixel (SP) can drive a first light-emitting element (EL1) in a first viewing angle mode and emit light having a first viewing angle via a first light control element (L1). In a second viewing angle mode, the subpixel (SP) can drive a second light-emitting element (EL2) and emit light having a second viewing angle narrower than the first viewing angle via a second light control element (L2).

[0041] Referring to Figure 4A, the first optical control element (L1) may have a half-cylindrical lens structure that is elongated in the first direction (X), but is not limited to this lens structure. Referring to Figure 4B, the second optical control element (L2) may have a half-spherical lens structure, but is not limited to this lens structure. In one embodiment, the first optical control element (L1) and the second optical control element (L2) can control (limit) the field of view angles in the first direction (X) differently and control (limit) the field of view angles in the second direction (Y) equally.

[0042] According to the examples, the optical control elements (L1, L2) can be made of a fluid material, a semi-fluid material, or a solid. The material and configuration of the optical control elements (L1, L2) are not limited to the examples described above. In some cases, the optical control elements (L1, L2) may be called an optical control layer, an optical control configuration, a lens, or a field of view control unit, but are not limited to these terms.

[0043] In Figures 4A and 4B, the first direction (X) represents the left-right direction (horizontal direction) of the display panel 100, the second direction (Y) represents the up-down direction (vertical direction) of the display panel 100, and the third direction (Z) represents the front-to-back direction (thickness direction) of the display panel 100.

[0044] In the first viewing angle mode, each subpixel (SP) of the display panel 100 can drive the first light-emitting element (EL1) and provide light with a wide viewing angle without restricting the propagation path of the light emitted from the first light-emitting element (EL1) via the first light control element (L1) to within a specific angle in the first direction (X).

[0045] In the second viewing angle mode, each subpixel (SP) of the display panel 100 drives a second light-emitting element (EL2) and restricts the propagation path of light emitted from the second light-emitting element (EL2) via a second light control element (L2) to within a specific cutoff angle in the first direction (X), thereby providing light with a narrow viewing angle.

[0046] The first optical control element (L1) and the second optical control element (L2) can control the field of view to a narrow angle by limiting the optical path in the second direction (Y) to within the cutoff angle. As a result, in one embodiment, when the display device 1000 is applied to an automobile as shown in Figure 5, it is possible to prevent the image displayed on the display device 1000 from being reflected by the windshield of the automobile and obstructing the driver's view.

[0047] In one embodiment, a subpixel (SP) can receive a data voltage (Vdata) from the data driver of the display driving circuit 200 via any one data line 22. The subpixel (SP) can receive a scan signal (SCAN) from the gate driver of the display driving circuit 200 via at least one gate line 12, and a light emission control signal (EM) via at least one gate line 16. The subpixel (SP) can receive a first mode signal (SH) from the gate driver of the display driving circuit 200 via any one gate line 42, and a second mode signal (PR) via any one gate line 44. In one embodiment, a subpixel (SP) can receive a high potential power supply voltage (ELVDD) from the power management circuit via a first power supply line 32, a low potential power supply voltage (ELVSS) via a common electrode (cathode electrode) (CE) and a second power supply line 34, and a reference voltage (Vref) via a reference line 24.

[0048] The gate driver can be embedded and placed in the non-display area (NDA) of the display panel 100, but is not limited to this, and can be distributed throughout the display area (DA). In one embodiment, the gate driver is a GIP (Gate In Panel) type composed of transistors formed in the same process as the transistors in the display area (DA), and can be embedded in the display panel 100.

[0049] The gate driver may include at least one scan driver 210 that drives at least one gate line 12, and at least one light emission control driver 220 that drives at least one gate line 16. The number of gate lines connected to a subpixel (SP), the number of scan drivers 210, and the number of light emission control drivers 220 can be varied depending on the detailed configuration of the pixel circuit constituting the subpixel (SP).

[0050] The scan driver 210 can generate and supply at least one scan signal (SCAN) to at least one gate line 12 located in each of the multiple pixel row lines.

[0051] The light emission control driver 220 can generate and supply at least one light emission control signal (EM) to at least one gate line 16 located in each of the multiple pixel row lines.

[0052] In one embodiment, the gate driver may further include a mode control unit 230 that supplies mode signals (SH, PR) to gate lines 42, 44.

[0053] The mode control unit 230 can use the mode selection signal to generate and supply a first mode signal (SH) to each of the multiple pixel low line lines via any one gate line 42, and generate and supply a second mode signal (PR) via any one gate line 44. The mode control unit 230 can use the first mode signal (SH) and the second mode signal (PR) to selectively drive the first light-emitting element (EL1) and the second light-emitting element (EL2) of each subpixel (SP).

[0054] In one embodiment, the first and second mode signals (SH, PR) can be supplied from the light emission control driver 220.

[0055] Multiple transistors arranged in the display area (DA) and non-display area (NDA) of the display panel 100, including the gate driver, can be at least one of either LTPS transistors using low-temperature polysilicon (LTPS) semiconductors or oxide transistors using metal oxide semiconductors. In one embodiment, the display panel 100 can be configured to have both LTPS transistors and oxide transistors coexist in order to reduce power consumption.

[0056] Referring to Figure 5, the multiple display devices arranged on the car dashboard can include a cluster, a center information display (CID), and a co-driver display (CDD). For the cluster and center information display (CID), which are primarily used by the driver (DR), a display device that limits the field of view in the second direction (Y) to within a cutoff angle for safe driving can be applied. A display device with a touch sensor can be applied to the center information display (CID). For the co-driver display (CDD), used by the driver (DR) and passenger (PA), a display device 1000 capable of field of view control in a first field of view mode and a second field of view mode can be applied, as in the embodiment described above.

[0057] The co-driver display device (CDD) 1000 can be driven in a first field of view mode by the control of the host system when the driver (DR) is not driving, and can provide the driver (DR) and passenger (PA) with images having a wide field of view in the first direction (X).

[0058] The co-driver display (CDD) can be driven in a second field of view mode by the control of the host system when the driver (DR) is driving, and can provide images with a narrow field of view only to the passenger (PA) by limiting the field of view in the first direction (X) to within the cutoff angle, and can not provide images to the driver (DR) so as not to interfere with driving.

[0059] The display device 1000 according to one embodiment can be applied not only to co-driver display devices (CDDs) but also to various display devices such as mobile displays, IT displays, and TV displays where selective viewing angle control is required for privacy protection and information protection.

[0060] Figure 6 is an equivalent circuit diagram illustrating the subpixel configuration in a display panel according to one embodiment, and Figure 7 is a diagram illustrating the subpixel driving waveform according to one embodiment.

[0061] Referring to Figure 6, a subpixel (SP) may include first and second light-emitting elements (EL1, EL2) and a pixel circuit 10 that separately drives the first and second light-emitting elements (EL1, EL2). In one embodiment, the pixel circuit 10 may include a drive transistor (DT), a plurality of switching transistors (T1 to T8), and a storage capacitor (Cst), and is not limited to this configuration.

[0062] The pixel circuit 10 can receive a first scan signal (SCAN1) from the first scan driver 210 via the first gate line 12, and a second scan signal (SCAN2) from the second scan driver 212 via the second gate line 14.

[0063] The pixel circuit 10 can receive a light emission control signal (EM) from the first light emission control driver 220 via the third gate line 16.

[0064] In one embodiment, the pixel circuit 10 can receive a first mode signal (SH) via a fourth gate line 42 from the mode control unit 230, and a second mode signal (PR) via a fifth gate line 44.

[0065] In one embodiment, the pixel circuit 10 can receive a first mode signal (SH) via the fourth gate line 42 of the second light emission control driver and a second mode signal (PR) via the fifth gate line 44.

[0066] The pixel circuit 10 can receive a data signal (Vdata) from the data driver via the data line 22. The pixel circuit 10 can receive a high potential power supply voltage (ELVDD) from the power management circuit via the first power supply line 32, a low potential power supply voltage (ELVSS) via the second power supply line 34 and the common electrode (CE), and a reference voltage (Vref) via the reference line 24.

[0067] In the embodiment, the second light-emitting element (EL2) may include multiple light-emitting elements. For example, the second light-emitting element (EL2) may include a second-first light-emitting element and a second-second light-emitting element. In this case, the second-first light-emitting element and the second-second light-emitting element can be connected in parallel. According to the embodiment, the second-first light-emitting element and the second-second light-emitting element may have a common anode, but are not limited to this. According to the embodiment, the second light-emitting element (EL2) may include three or more light-emitting elements.

[0068] Referring to Figure 7, a subpixel (SP) can be driven to include an initialization period (t1), a sampling and writing period (t2), and an emission period (t3) for each frame period (N, N+1). For convenience of explanation, in Figure 7, the N frame period represents one frame period of the first field of view mode, and the N+1 frame period represents one frame period of the second field of view mode.

[0069] Each of the drive transistors (DT) and switching transistors (T1-T8) in the pixel circuit 10 includes a gate electrode, a source electrode, and a drain electrode. The source electrode and drain electrode are not fixed and can be changed according to the direction of the voltage and current applied to the gate electrode; therefore, one of the source electrode and drain electrode can be represented as the first electrode, and the other as the second electrode. The drive transistors (DT) and switching transistors (T1-T8) in the pixel circuit 10 can use at least one of polysilicon semiconductors, amorphous silicon semiconductors, or oxide semiconductors, and can be P-type, N-type, or a mixture of P-type and N-type semiconductors.

[0070] The first and second light-emitting elements (EL1, EL2) may comprise anode electrodes (AE1, AE2) individually connected to eighth and sixth switching transistors (T8, T6), a cathode electrode (CE) receiving a low potential power supply voltage (ELVSS) from a second power supply line 34, anode electrodes (AE1, AE2), and a light-emitting layer between the cathode electrodes (CE). When a drive current is supplied from a drive transistor (DT) via the eighth and sixth switching transistors (T8, T6), electrons from the cathode electrode (CE) are injected into the light-emitting layer, and holes from the anode electrodes (AE1, AE2) are injected into the organic light-emitting layer. The recombination of electrons and holes in the light-emitting layer causes fluorescence or phosphorescence to be emitted, thereby emitting light with a brightness proportional to the value of the drive current.

[0071] The gate electrode of the drive transistor (DT) is connected to the storage capacitor (Cst), the first electrode is connected to the first power supply line 32 that supplies a high potential power supply voltage (ELVDD), and the second electrode can be connected to the first electrode of the fourth switching transistor (T4). The drive transistor (DT) can be connected in common to the first electrodes of the sixth and eighth switching transistors (T6, T8) via the fourth switching transistor (T4). The drive transistor (DT) can drive the first light-emitting element (EL1) via the fourth and eighth switching transistors (T4, T8), or drive the second light-emitting element (EL2) via the fourth and sixth switching transistors (T4, T6). The drive transistor (DT) can control the light emission intensity of the first light-emitting element (EL1) via the fourth and eighth switching transistors (T4, T8), or control the light emission intensity of the second light-emitting element (EL2) via the fourth and sixth switching transistors (T4, T6), by controlling the drive current according to the drive voltage charged in the storage capacitor (Cst).

[0072] A storage capacitor (Cst) is connected between the second electrode of the first switching transistor (T1) and the gate electrode of the drive transistor (DT), and can be charged with a drive voltage corresponding to the data voltage (Vdata). The storage capacitor (Cst) can hold the charged drive voltage for the light emission period (t3) when the first switching transistor (T1) is turned off, and supply it to the drive transistor (DT).

[0073] The first switching transistor (T1) can be turned on or turned off in response to the first scan signal (SCAN1) of the first gate line 12 located on the i-th (where i is a natural number) pixel row line. The first switching transistor (T1) can supply the data voltage (Vdata) received via the data line 22 to the first electrode of the storage capacitor (Cst) during the sampling and writing period (t2) when the first scan signal (SCAN1) has a gate-on voltage (VON). The switching transistor (T1) can be turned off during the initialization period (t1) and the light emission period (t3) when the first scan signal (SCAN1) has a gate-off voltage (VOFF).

[0074] The second, fifth, and seventh switching transistors (T2, T5, T7) can be turned on or turned off in response to a second scan signal (SCAN2) supplied to the second gate line 14 of the i-th pixel row line. The second, fifth, and seventh switching transistors (T2, T5, T7) can be turned on during the initialization period (t1) and sampling and lighting period (t2) when the second scan signal (SCAN2) has a gate-on voltage (VON), and can be turned off during the light emission period (t3) when the second scan signal (SCAN2) has a gate-off voltage (VOFF).

[0075] The second switching transistor (T2) can connect the drive transistor (DT) to a diode structure by connecting its gate electrode to the second electrode during the initialization period (t1) and the sampling and writing period (t2) in response to the second scan signal (SCAN2). The second switching transistor (T2) can compensate the storage capacitor (Cst) by charging it with the threshold voltage (Vth) of the drive transistor (DT). As a result, the storage capacitor (Cst) can charge the data voltage with the threshold voltage (Vth) of the drive transistor (DT) compensated.

[0076] The fifth switching transistor (T5) can, in response to the second scan signal (SCAN2), supply a reference voltage (Vref) supplied via the reference line 24 to the anode electrode (AE2) of the second light-emitting element (EL2) during the initialization period (t1) and the sampling and writing period (t2).

[0077] The seventh switching transistor (T7) can, in response to the second scan signal (SCAN2), supply an initialization voltage (Vref) supplied via the reference line 24 to the anode electrode of the first light-emitting element (EL1) during the initialization period (t1) and the sampling and writing period (t2).

[0078] The third and fourth switching transistors (T3, T4) can be turned on or turned off in response to a light emission control signal (EM) supplied to the third gate line 16 of the i-th pixel row line. The third and fourth switching transistors (T3, T4) can be turned on during the initialization period (t1) and the light emission period (t3) when the light emission control signal (EM) has a gate-on voltage (VON). The third and fourth switching transistors (T3, T4) can be turned off during the sampling and lighting period (t2) with a gate-off voltage (VOFF) and during the period between the sampling and lighting period (t2) and the light emission period (t3).

[0079] The third switching transistor (T3) can, in response to the light emission control signal (EM), supply a reference voltage (Vref) supplied via the reference line 24 during the initialization period (t1) and the light emission period (t3) to the first electrode of the storage capacitor (Cst).

[0080] The fourth switching transistor (T4) can, in response to the light emission control signal (EM), connect the drive transistor (DT) with the sixth and eighth switching transistors (T6, T8) during the initialization period (t1) and the light emission period (t3).

[0081] The eighth switching transistor (T8) can be turned on or turned off in response to a first mode signal (SH) supplied to the fourth gate line 42 of the i-th pixel row line. The eighth switching transistor (T8) can be turned on for the duration (N frames) of the first viewing angle mode, which has a gate-on voltage (VON), and can be turned off for the duration (N+1 frames) of the second viewing angle mode, which has a gate-off voltage (VOFF).

[0082] The eighth switching transistor (T8) can, in response to the first mode signal (SH), connect the fourth switching transistor (T4) to the first light-emitting element (EL1) for the duration of the first viewing angle mode drive period (N frames).

[0083] During the light emission period (t3) of the driving period (N frames) of the first viewing angle mode, the drive transistor (DT) can drive the first light-emitting element (EL1) via the fourth and eighth switching transistors (T4, T8). As a result, the subpixel (SP) can provide light of the first viewing angle via the first light-emitting element (EL1) and the first light control element (L1, Figure 4A).

[0084] The sixth switching transistor (T6) can be turned on or turned off in response to a second-mode signal (PR) supplied to a fifth gate line 44 located in the i-th pixel row line. The sixth switching transistor (T6) can be turned on during the drive period (N+1 frames) of the second field-of-view mode, which has a gate-on voltage (VON), and can be turned off during the drive period (N frames) of the first field-of-view mode, which has a gate-off voltage (VOFF).

[0085] The sixth switching transistor (T6) can, in response to the second mode signal (PR), connect the fourth switching transistor (T4) to the second light-emitting element (EL2) for the duration of the second viewing angle mode drive period (N+1 frames).

[0086] During the light emission period (t3) of the driving period (N+1 frames) of the second field of view mode, the drive transistor (DT) can drive the second light-emitting element (EL2) via the fourth and sixth switching transistors (T4, T6). This allows the subpixel (SP) to provide light of the second field of view via the second light-emitting element (EL2) and the first light control element (L2, Figure 4B).

[0087] Figure 8 is a plan view showing an enlarged view of the structure of area A of the display panel according to one embodiment shown in Figure 1; Figure 9 is a plan view showing the structure of area A shown in Figure 8 including the black matrix; Figure 10 is a plan view showing an enlarged view of the structure of the pixel area within area A shown in Figure 8; and Figure 11 is a plan view showing the structure of the pixel area shown in Figure 10 including the black matrix.

[0088] Referring to Figures 8 to 11, area A is an enlarged view of multiple pixel areas in the display panel 100 according to one embodiment shown in Figure 1. Area A of the display panel 100 according to one embodiment can have a structure in which at least a portion of the pixel array, touch sensor array, and optical control array are superimposed. The pixel array may include multiple subpixels (SP1, SP2, SP3) having multiple light-emitting elements (EL1: EL11, EL21, EL31) (EL2: EL12, EL22, EL32). The touch sensor array may include multiple sensor electrodes (SE), bridge electrodes (BE), dummy electrodes (DSE), and black matrices (BM). The optical control array may include multiple optical control elements (L1: L11, L21, L31) (L2: L12, L22, L32).

[0089] A pixel array may include a second n-1 row line (R2n-1, where n is a natural number) and a second n row line (R2n) containing multiple subpixels (SP1, SP2, SP3) arranged in the first direction (X), and a second m-1 column line (C2m-1, where m is a natural number) and a second m column line (C2m) containing multiple subpixels (SP1, SP2, SP3) arranged in the second direction (Y).

[0090] The second m-1 column line (C2m-1) may contain multiple first-type subpixels (SP1) arranged in the second direction (Y). The second m column line (C2m) may contain multiple second and third-type subpixels (SP2, SP3) arranged alternately in the second direction (Y).

[0091] Each of the 2n-1 rowlines (R2n-1) and the 2n rowline (R2n) can contain multiple 1st to 3rd type subpixels (SP1, SP2, SP3) arranged alternately in the 1st direction (X) with 1st type subpixels (SP1) and 2nd / 3rd type subpixels (SP2, SP3).

[0092] Each pixel (PX) may contain a first-type subpixel (SP1) that emits first-color light, a second-type subpixel (SP2) that emits first-color light, and a third-type subpixel (SP3) that emits third-color light. The first-type subpixel (SP1) can be positioned adjacent to the second and third-type subpixels (SP2, SP3) in the first direction (X). The second and third-type subpixels (SP2, SP3) can be positioned adjacent to and parallel to each other in the second direction (Y).

[0093] A first type subpixel (SP1) may include a first light-emitting element (EL11) (1-1 light-emitting element), a first light control element (L11) (1-1 light control element) superimposed on the first light-emitting element (EL11), at least one second light-emitting element (EL12) (1-2 light-emitting element), and at least one second light control element (L12) (1-2 light control element) superimposed on the at least one second light-emitting element (EL12). Other names for light-emitting elements and light control elements may also apply. The light-emitting region of the first light-emitting element (EL11) may have a structure that is longer in the first direction (X) than in the second direction (Y).

[0094] In one embodiment, in a first type subpixel (SP1), two second light-emitting elements (EL12) can be arranged separately in the second direction (Y) with the first light-emitting element (EL11) in between. The two second light-emitting elements (EL12) can have a parallel connection structure in which their anode electrodes are connected to each other.

[0095] The second light-emitting element (EL12) and second light-controlling element (L12) of a first type subpixel (SP1) can be arranged adjacent to the second light-emitting element (EL12) and second light-controlling element (L12) of another first type subpixel (SP1) adjacent in the second direction (Y).

[0096] In other embodiments, in a first type subpixel (SP1), multiple light control elements (L12) can be arranged on a single second light-emitting element (EL12). Below the multiple light control elements (L12) shown in Figure 10, a single light-emitting layer may be commonly arranged. However, in this case, the light-emitting layer for the second light-emitting element (EL12) is not placed below the region corresponding to the first light-emitting element (EL11), and a separate light-emitting layer dedicated to the first light-emitting element (EL11) can be placed.

[0097] The first type subpixel (SP1) may be a red subpixel having first and second light-emitting elements (EL11, EL12) that emit red light.

[0098] The second type subpixel (SP2) may include a first light-emitting element (EL21) (2-1 light-emitting element), a first optical control element (L21) (2-1 optical control element) superimposed on the first light-emitting element (EL21), at least one second light-emitting element (EL22) (2-2 light-emitting element), and at least one second optical control element (L22) (2-2 optical control element) superimposed on the at least one second light-emitting element (EL22).

[0099] In the second type subpixel (SP2), two second light-emitting elements (EL22) can be arranged parallel to each other in the first direction (X), and the first light-emitting element (EL21) and the two second light-emitting elements (EL22) can be arranged separately in the second direction (Y). The two second light-emitting elements (EL22) can have a parallel connection structure in which their anode electrodes are connected to each other.

[0100] In a second-type subpixel (SP2), two second-type optical control elements (L22) can be arranged parallel to each other in the first direction (X), and the first-type optical control element (L21) and the two second-type optical control elements (L22) can be arranged separately in the second direction (Y).

[0101] The second type subpixel (SP2) may be a green subpixel having first and second light-emitting elements (EL21, EL22) that emit green light.

[0102] In the third type subpixel (SP3), two second light-emitting elements (EL32) (third-second light-emitting elements) can be arranged parallel to each other in the first direction (X), and the first light-emitting element (EL31) (third-first light-emitting element) and the two second light-emitting elements (EL32) can be arranged separately in the second direction (Y). The two second light-emitting elements (EL32) can have a parallel connection structure in which their anode electrodes are connected to each other.

[0103] In the third type subpixel (SP3), two second optical control elements (L32) (third-second optical control elements) can be arranged parallel to each other in the first direction (X), and the first optical control element (L31) (third-first optical control element) and the two second optical control elements (L32) can be arranged separately in the second direction (Y).

[0104] The second light-emitting element (EL22) and second light-controlling element (L22) of a second type subpixel (SP2) can be positioned adjacent to the second light-emitting element (EL32) and second light-controlling element (L32) of a third type subpixel (SP3) of the same pixel (PX) adjacent in the second direction (Y). The first light-emitting element (EL31) and first light-controlling element (L31) of a third type subpixel (SP3) can be positioned adjacent to the first light-emitting element (EL21) and first light-controlling element (L21) of a second type subpixel (SP2) of another pixel (PX) adjacent in the second direction (Y).

[0105] A third type subpixel (SP3) may be a blue subpixel having first and second light-emitting elements (EL31, EL32) that emit blue light.

[0106] In one embodiment, the colors emitted by the first type subpixel (SP1), the second type subpixel (SP2), and the third type subpixel (SP3) can be different from those described above. In addition, depending on the circumstances, the arrangement of the light control elements (L1: L11, L21, L31) (L2: L12, L22, L32) and the light-emitting elements within the first type subpixel (SP1), the second type subpixel (SP2), and the third type subpixel (SP3) may differ.

[0107] The size of the first light-emitting element (EL1: EL11, EL21, EL31) may be larger than the size of the second light-emitting element (EL2: EL12, EL22, EL32). The second light-emitting element (EL2) may have a size smaller than the light-emitting region of the first light-emitting element (EL1) and multiple light-emitting regions separated in the second direction (Y) with the first light-emitting element (EL1) in between. The size of the light-receiving surface of the first light control element (L1: L11, L21, L31) can be set larger than the size (size of the light-emitting region) of the first light-emitting element (EL1: EL11, EL21, EL31) to improve the light emission efficiency. The size of the light-receiving surface of the second light control element (L2: L12, L22, L32) can be set larger than the size (size of the light-emitting region) of the second light-emitting element (EL2: EL12, EL22, EL32) to improve the light emission efficiency. The size of the light-receiving surface of the first light control element (L1: L11, L21, L31) may be larger than the size of the light-receiving surface of the second light control element (L2: L12, L22, L32). The light control element may have a light-incident surface size that is proportional to the size of the light-emitting region of the corresponding light-emitting element.

[0108] In one embodiment, the sizes of the first light-emitting elements (EL11, EL21, EL31) may differ by color in order to compensate for the deviation in the luminous efficiency of the first light-emitting elements (EL11, EL21, EL31) by color. In one embodiment, the size of the first light-emitting element (EL11) and the first light control element (L11) of the first type subpixel (SP1) may be the smallest, and the size of the first light-emitting element (EL21) and the first light control element (L21) of the second type subpixel (SP2) may be the same as or smaller than the size of the first light-emitting element (EL31) and the first light control element (L31) of the third type subpixel (SP3).

[0109] In one embodiment, to compensate for the deviation in the luminous efficiency of the second light-emitting elements (EL12, EL22, EL32) for each color, the size of the second light-emitting elements (EL12, EL22, EL32) may differ for each color, or the number of light-emitting regions of the same size may differ for each color. In one embodiment, the size (number) of the second light-emitting elements (EL12) and second light control elements (L12) of the first type subpixel (SP1) may be the smallest, and the size (number) of the second light-emitting elements (EL22) and second light control elements (L22) of the second type subpixel (SP2) may be the same as or smaller than the size (number) of the second light-emitting elements (EL32) and second light control elements (L32) of the third type subpixel (SP3).

[0110] A touch sensor array may include multiple sensor electrodes (SE), multiple dummy electrodes (DSE), and multiple bridge electrodes (BE) superimposed on the non-luminescent regions of a pixel array. The multiple sensor electrodes (SE) and multiple dummy electrodes (DSE) may be arranged on the same layer but separated from each other. The bridge electrodes (BE) may be arranged on a different layer from the sensor electrodes (SE) and dummy electrodes (DSE) and superimposed on each other, and can electrically connect the multiple sensor electrodes (SE) via contact portions (CNTs).

[0111] In one embodiment, multiple sensor electrodes (SE) can be arranged along the second m-1 column line (C2m-1) in the non-emitting region of the first type subpixel (SP1). The multiple sensor electrodes (SE) can be separated in the second direction (Y) with respect to the first light-emitting element (EL11) of the first type subpixel (SP1).

[0112] Each of the multiple sensor electrodes (SE) may comprise a first sensor electrode portion (SE1) positioned in a non-emitting region around the second light-emitting element (EL12) of a first type subpixel (SP1), and a second sensor electrode portion (SE2) positioned in a non-emitting region around the second light-emitting element (EL22) of another second type subpixel (SP2) adjacent in the second direction (Y). Each of the multiple sensor electrodes (SE) may further comprise a third sensor electrode portion (SE3) connecting the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) in the second direction (Y).

[0113] In each of the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2), the first portion surrounding the second light-emitting element (EL12) may have a relatively large area, the second portion overlapping with the contact portion (CNT) may have a smaller area than the first portion, and the third sensor electrode portion (SE3) may have the smallest area. The first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) may have a structure that is symmetrical in the second direction (Y) with respect to the third sensor electrode portion (SE3).

[0114] Each of the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) can be electrically connected to the bridge electrode (BE) via a contact portion (CNT) adjacent to the third sensor electrode portion (SE3) in the second direction (Y). Two contact portions (CNT) can be arranged parallel to the second direction (Y) between the second light-emitting element (EL12) of the first type subpixel (SP1) adjacent in the second direction (Y), and the third sensor electrode portion (SE3) can be arranged between the two contact portions (CNT).

[0115] The first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) are each connected to the third sensor electrode portion (SE3), and the first sensor electrode portion (SE1), the second sensor electrode portion (SE2), and the third sensor electrode portion (SE3) can be arranged in an integrated pattern. The first sensor electrode portion (SE1), the second sensor electrode portion (SE2), and the third sensor electrode portion (SE3) forming an integrated pattern can be arranged, for example, across the first type subpixel (SP1) located on the second n row line (R2n) and the first subpixel (SP1) located on the 2n+1 row line (R2n+1). More specifically, the first sensor electrode portion (SE1) is superimposed on the non-emitting region of the first subpixel (SP1) located at the 2n+1 row line (R2n+1), the second sensor electrode portion (SE2) is superimposed on the non-emitting region of the first subpixel (SP1) located at the 2n row line (R2n), and the third sensor electrode portion (SE3) is superimposed on the non-emitting region between the first subpixel (SP1) located at the 2n+1 row line (R2n+1) and the first subpixel (SP1) located at the 2n row line (R2n), and can be integrated together with the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2).

[0116] The first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) may each have an aperture (OH1) that overlaps with the light-emitting region of the second light-emitting element (EL12) and the second light control element (L12). The size of the respective apertures (OH1) of the first and second sensor electrode portions (SE1, SE2) may be larger than the size of the light-emitting region of the second light-emitting element (EL12) and smaller than the size of the light-receiving surface of the second light control element (L12). The ends of the first and second sensor electrode portions (SE1, SE2) that overlap with the second light control element (L12) can limit the radiation angle of the light emitted from the second light-emitting element (EL12) together with the second light control element (L12) to within the cutoff angles in the first and second directions (X, Y), thereby blocking light leakage.

[0117] The ends of the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2), which are separated in the second direction (Y) with respect to the first light-emitting element (EL11) of the first type subpixel (SP1), overlap with the ends that do not overlap with the first light-emitting element (EL11) in the first light control element (L11). Together with the first light control element (L11), the emission angle of the light emitted from the first light-emitting element (EL11) can be limited to within the cutoff angle in the second direction (Y), thereby blocking light leakage.

[0118] In one embodiment, each of the multiple bridge electrodes (BEs) can be positioned along the second direction (Y) via the non-emitting regions of the first to third type subpixels (SP1, SP2, SP3).

[0119] The bridge electrode (BE) may be positioned on both sides of each of the second m-1 column lines (C2m-1) and may include first and second bridge electrode portions (BE1, BE2) extending in the second direction (Y) or along the second m-1 column line (C2m-1), and a third bridge electrode portion (BE3) connecting the first and second bridge electrode portions (BE1, BE2).

[0120] The first and second bridge electrode portions (BE1, BE2) can be superimposed on the first sensor electrode (SE) around the second light-emitting element (EL12) of the first type subpixel (SP1), and on the dummy electrode (DSE) around the second light-emitting elements (EL22, EL32) of the second and third type subpixels (SP2, SP3). The first and second bridge electrode portions (BE1, BE2) can be symmetrical in the first direction. The third bridge electrode portion (BE3) can be electrically connected to the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) via a contact portion (CNT).

[0121] The first and second bridge electrode portions (BE1, BE2) extending along the second m-1 column line (C2m-1) from both sides of the second m-1 column line (C2m-1) may have a pattern in which the spacing between them in the first direction (X) is variable along the second direction (Y).

[0122] In one embodiment, the first and second bridge electrode portions (BE1, BE2) can have a maximum mutual distance in the first direction (X) in a non-emitting region where they overlap with the first light control element (L11) of the first type subpixel (SP1) and a dummy electrode (DSE) adjacent in the first direction (X).

[0123] In one embodiment, the first and second bridge electrode portions (BE1, BE2) can have a minimum mutual spacing in the first direction (X) in a non-emitting region that partially overlaps with the sensor electrode between a plurality of contact portions (CNTs) and the first light control elements (L21, L31) of the second and third type subpixels (SP2, SP3), i.e., in the region connected to the third bridge electrode (BE3).

[0124] In one embodiment, the first and second bridge electrode portions (BE1, BE2) may have a diagonal pattern that is superimposed between the maximum and minimum inter-inter

[0125] Multiple dummy electrodes (DSEs) can be placed in the non-emitting regions of the second m column line (C2m). Dummy electrodes (DSEs) can be placed in the non-emitting regions of second and third type subpixels (SP2, SP3). The multiple dummy electrodes (DSEs) may include a first dummy electrode (DSE1) placed in the non-emitting region around the second light-emitting elements (EL22, EL32) of second and third type subpixels (SP2, SP3) adjacent in the second direction (Y), and a second dummy electrode (DSE2) placed in the non-emitting region between the first light-emitting elements (EL21, EL31) of second and third type subpixels (SP2, SP3) adjacent in the second direction (Y). The first dummy electrode (DSE1) may have a larger area than the second dummy electrode (DSE2).

[0126] The first and second dummy electrodes (DSE1, DSE2) may be floating electrodes that are not electrically connected to other electrodes. The floating first and second dummy electrodes (DSE1, DSE2) can improve sensing performance by reducing parasitic capacitance formed between the common cathode electrodes of the touch sensor array and the pixel array, thereby reducing distortion of the touch drive signal and touch sensing signal.

[0127] The first dummy electrode (DSE1) may have an aperture (OH2) that overlaps with the light-emitting region of the second light-emitting element (EL22, EL32) and overlaps with the second light control element (L22, L32). The size of the aperture (OH2) of the first dummy electrode (DSE1) may be larger than the size of the light-emitting region of the second light-emitting element (EL22, EL32) and smaller than the size of the light-receiving surface of the second light control element (L22, L32). The end of the first dummy electrode (DSE1) that overlaps with the second light control element (L22, L32), together with the second light control element (L22, L32), can restrict the propagation direction of light emitted from the second light-emitting element (EL22, EL32) in the first and second directions (X, Y) to within a cutoff angle, thereby blocking light leakage.

[0128] The first dummy electrode (DSE1) may have a pattern configuration that includes a portion having the maximum length in the first direction (X) in a non-emitting region adjacent to the sensor electrode (SE) in the first direction (X), and a portion having the minimum length in the first direction (X) in a non-emitting region between the first light control elements (L11) of the first type subpixel (SP1) adjacent to the first direction (X).

[0129] The ends of the first dummy electrode (DSE1) and the second dummy electrode (DSE2) in the second direction (Y) overlap with the portion of the first light control element (L21, L31) that is not superimposed on the first light-emitting element (EL21, EL31). Together with the first light control element (L21, L31), the second direction (Y) propagation of light emitted from the first light-emitting element (EL21, EL31) can be limited to within the cutoff angle, thereby preventing light leakage.

[0130] The second dummy electrode (DSE2) may have a pattern configuration that includes a portion of the non-emitting region adjacent to the first light control element (L31) of the third type subpixel (SP3) in the second direction (Y) having the maximum length in the first direction (X), and a portion of the non-emitting region adjacent to the first light control element (L21) of the second type subpixel (SP2) in the second direction (Y) having the minimum length in the first direction (X).

[0131] Referring to Figures 9 and 11, the touch sensor array may further include a black matrix (BM) located in the non-emissive region of the pixel array.

[0132] The black matrix (BM) may comprise a first aperture (BH1) superimposed on the first light-emitting element (EL1: EL11, EL21, EL31) and a second aperture (BH2) superimposed on the second light-emitting element (EL2: EL12, EL22, EL32). The size of the first aperture (BH1) of the black matrix (BM) may be larger than the size of the light-emitting region of the second light-emitting element (EL2: EL12, EL22, EL32) and smaller or larger than the size of the light-receiving surface of the second light-controlling element (L2: L12, L22, L32). The size of the second aperture (BH2) of the black matrix (BM) may be larger than the size of the light-emitting region of the first light-emitting element (EL1: EL11, EL21, EL31) and smaller or larger than the size of the light-receiving surface of the first light-controlling element (L1: L11, L21, L31).

[0133] In one embodiment, the size of the first aperture (BH1) of the black matrix (BM) may vary for each subpixel in proportion to the size of the light-emitting region of the first light-emitting element (EL11, EL21, EL31) and the size of the first light control elements (L11, L21, L31). In one embodiment, the size of the second aperture (BH2) of the black matrix (BM) may vary for each subpixel in proportion to the size of the light-emitting region of the second light-emitting element (EL12, EL22, EL32) and the size of the second light control elements (L12, L22, L32).

[0134] The edges of the black matrix (BM) adjacent to or superimposed on either the sensor electrode (SE) or the dummy electrode (DSE) and the first light control element (L1: L11, L21, L31) can limit the radiation angle of the light emitted by the first light-emitting element (EL1: EL11, EL21, EL31) together with the first light control element (L1: L11, L21, L31) to within the cutoff angle in the second direction (Y), thereby blocking leaked and reflected light and preventing light leakage. The edges of the black matrix (BM) adjacent to or superimposed on either the sensor electrode (SE) or the dummy electrode (DSE) and the second light control element (L2: L12, L22, L32) can limit the emission angle of light emitted by the second light-emitting element (EL2: EL12, EL22, EL32) together with the second light control element (L2: L12, L22, L32) to within the cutoff angles in the first and second directions (X, Y), thereby blocking leaked and reflected light and preventing light leakage.

[0135] The sensor electrodes (SE), dummy electrodes (DSE), bridge electrodes (BE), and black matrix (BM) of a touch sensor array can be positioned in non-emitting regions to function as light-blocking barriers.

[0136] In one embodiment, the ends of the sensor electrode (SE) and dummy electrode (DSE) can be non-overlapped with portions adjacent to the first light-emitting element (EL1:EL11, EL21, EL31) in the first light control element (L1:L11, L21, L31) in the first direction (X). As a result, the ends of the sensor electrode (SE) and dummy electrode (DSE) do not restrict the emission angle of light emitted from the first light-emitting element (EL1:EL11, EL21, EL31) in the first direction (X), thereby ensuring a wide viewing angle characteristic for the first light control element (L1:L11, L21, L31). The first overlapping portion, in which either the end of the sensor electrode (SE) or dummy electrode (DSE) overlaps with the end of the first light control element (L1) in the second direction (Y), can be separated from the end of the light-emitting region of the first light-emitting element (EL1) in the second direction (Y). The second superimposed portion, in which the edge of the black matrix (BM) overlaps with the edge of the first light control element (L1) in the second direction (Y), can be separated from the edge of the light-emitting region of the first light-emitting element (EL1) in the second direction (Y). The area of ​​the first superimposed portion may be smaller than the area of ​​the second superimposed portion. The length of the first superimposed portion in the first direction (X) may be greater than the length of the first light-emitting element (EL1) in the first direction (X). The third superimposed portion, in which either the edge of the sensor electrode (SE) or the dummy electrode (DSE) overlaps with the edge of the second light control element (L2), can be separated from the edge of the light-emitting region of the first light-emitting element (EL1). The fourth superimposed portion, in which the edge of the black matrix (BM) overlaps with the edge of the second light control element (L2) in the second direction (Y), can be separated from the edge of the light-emitting region of the second light-emitting element (EL2). The area of ​​the third superimposed portion may be smaller than the area of ​​the fourth superimposed portion.

[0137] In one embodiment of the display panel 100, by arranging multiple contact portions (CNTs) of the touch sensor array in the non-emitting region of the first type subpixel (SP1), which has the relatively smallest light-emitting area, it is possible to sufficiently secure the light-emitting area of ​​the second and third type subpixels (SP2, SP3) and the area of ​​the light control elements (L1, L2) to improve brightness.

[0138] Multiple contact portions can be positioned in the non-emitting region between the second light-emitting elements (EL12) of the first type subpixel (SP1) adjacent in the second direction (Y). Any one contact portion (CNT) can be positioned in the non-emitting region between the first light-emitting elements (EL21) of the second type subpixel (SP2) adjacent in the first direction (X). Any one contact portion (CNT) can be positioned in the non-emitting region between the first light-emitting elements (EL31) of the third type subpixel (SP3) adjacent in the first direction (X).

[0139] Figure 12 is a cross-sectional view showing the structure of the subpixel region along the I-I' section in the pixel region shown in Figure 11.

[0140] Referring to Figure 12, a display panel 100 according to one embodiment may include a pixel array 140 including a circuit element layer 120 disposed on a substrate 110 and a light-emitting element layer 130 disposed on the circuit element layer 120, a sealing layer 150 disposed on the pixel array 140 to seal the light-emitting element layer 130, a touch sensor array 160 disposed on the sealing layer 150, and an optical control array 170 disposed on the touch sensor array 160. The display panel 100 may further include a polarizing plate (POL), optically transparent adhesive (OCA, 180), cover substrate 190, etc., disposed on the optical control array 170.

[0141] Referring to Figure 12, we will explain, with an example, the cross-sectional structure of the second type subpixel (SP2) among the first to third type subpixels (SP1, SP2, SP3) in a display panel 100 according to one embodiment. The first to third type subpixels (SP1, SP2, SP3) can have the same cross-sectional structure.

[0142] Each subpixel (SP) may include the first and second transistors (TFT1, TFT2) of the pixel circuit 10, a first light-emitting element (EL1) connected to the first transistor (TFT1), a second light-emitting element (EL2) connected to the second transistor (TFT2), a first light control element (L1) superimposed on the first light-emitting element (EL1) with a light-emitting region (EA1), and a second light control element (L2) superimposed on the second light-emitting element (EL2) with a light-emitting region (EA2). The first transistor (TFT1) corresponds to the eighth switching transistor (T8) shown in Figure 6, and the second transistor (TFT2) can correspond to the sixth switching transistor (T6).

[0143] The circuit element layer 120 according to one embodiment may include a plurality of insulating layers laminated on the substrate 110. For example, the plurality of insulating layers may include a buffer layer 121, a gate insulating layer 122, an interlayer insulating layer 123, a protective layer 124, and a planarizing layer 125.

[0144] The substrate 110 may include an insulating material such as glass or plastic. The plastic substrate can be formed from a flexible material. For example, the substrate 110 may include at least one organic insulating material from among acrylic resin, epoxy resin, siloxane resin, polyimide resin, and polyamide resin.

[0145] The buffer layer 121 can have a single-layer or multi-layer structure containing an inorganic insulating material such as silicon oxide (SiOx), silicon nitride (SiNx), or aluminum oxide (Al2O3). The buffer layer 121 can prevent impurities such as hydrogen from flowing into the semiconductor layer 221 through the substrate 110.

[0146] Multiple transistors, including switching transistors (T8, T6), can be placed on the buffer layer 121.

[0147] In one embodiment, the buffer layer 121 may include a multi-buffer layer and an active buffer layer. In this case, the multi-buffer layer can be placed on the substrate 110, and the active buffer layer can be placed on the multi-buffer layer. A light-shielding layer can be placed between the multi-buffer layer and the active buffer layer.

[0148] Each transistor (TFT1, TFT2) includes a semiconductor layer 221, a gate electrode 223, a source electrode 225, and a drain electrode 227, respectively, arranged on a buffer layer 121. A gate insulating layer 122 is placed between the semiconductor layer 221 and the gate electrode 223. An interlayer insulating layer 123 is placed between the gate electrode 223 and the source and drain electrodes 225, 227. The source electrode 225 and drain electrode 227 of each transistor (TFT1, TFT2) can be connected to the source region and drain region of the semiconductor layer 221, respectively, through contact holes that penetrate the interlayer insulating layer 123 and the gate insulating layer 122.

[0149] The semiconductor layer 221 may contain polycrystalline silicon or an oxide semiconductor material. The semiconductor layer 221 may contain low-temperature polysilicon (LTPS). The semiconductor layer 221 may contain at least one oxide semiconductor material from among IZO(InZnO)-based, IGO(InGaO)-based, ITO(InSnO)-based, IGZO(InGaZnO)-based, IGZTO(InGaZnSnO)-based, GZTO(GaZnSnO)-based, GZO(GaZnO)-based, and ITZO(InSnZnO)-based. A light-shielding layer (not shown) may be further disposed below the semiconductor layer 221.

[0150] The gate insulating layer 122 may include inorganic insulating materials such as silicon oxide (SiOx) and silicon nitride (SiNx). The gate insulating layer 122 may include materials having a high dielectric constant. For example, the gate insulating layer 122 may include high-K materials such as hafnium oxide (HfO). The gate insulating layer 122 may have a multilayer structure.

[0151] The gate electrode 223 and gate line can be placed on the gate insulating layer 122.

[0152] The interlayer insulating layer 123 may contain inorganic insulating materials such as silicon oxide (SiOx) and silicon nitride (SiNx). The interlayer insulating layer 123 may have a multilayer structure.

[0153] Source electrodes 225 and drain electrodes 227, as well as data lines and power lines, can be placed on the interlayer insulating layer 123.

[0154] A protective layer 124 and a planarization layer 125 can be stacked on transistors (TFT1, TFT2). The protective layer 124 may contain inorganic insulating materials such as silicon oxide (SiOx) and silicon nitride (SiNx). The planarization layer 125 may contain an organic insulating material different from that of the protective layer 124 and can provide a flat surface. The planarization layer 125 may have a double-layer structure.

[0155] A light-emitting element layer 130, including light-emitting elements (EL1, EL2), can be placed on the planarization layer 125.

[0156] Each of the first and second light-emitting elements (EL1, EL2) may include an anode electrode 321 disposed on the planarization layer 125, a light-emitting layer 322 disposed on the anode electrode 321, and a common cathode electrode 323 disposed on the light-emitting layer 322.

[0157] The anode electrode 321 of the first light-emitting element (EL1) can be connected to either the source electrode 225 or the drain electrode 227 of the transistor (TFT1) via a contact hole that penetrates the planarization layer 125 and the protective layer 124. The anode electrode 321 of the second light-emitting element (EL2) can be connected to either the source electrode 225 or the drain electrode 227 of the transistor (TFT2) via a contact hole that penetrates the planarization layer 125 and the protective layer 124.

[0158] The anode electrode 321 may contain a conductive material having high reflectivity. The anode electrode 321 may contain metals such as aluminum (Al), silver (Ag), titanium (Ti), or silver-palladium-copper (APC) alloy. The anode electrode 321 may further contain a transparent conductive material such as ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide). In one embodiment, the anode electrode 321 may have a multilayer structure of titanium (Ti) and aluminum (Al) (Ti / Al / Ti), a multilayer structure of ITO and aluminum (Al) (ITO / Al / ITO), or a multilayer structure of ITO and APC (ITO / APC / ITO).

[0159] The light-emitting layer 322 may include an Emission Material Layer (EML) containing a light-emitting material. The light-emitting material may be an organic material, an inorganic material, or a hybrid material. The light-emitting layer 322 may have a multilayer structure. In one embodiment, the light-emitting layer 322 may further include at least one of a Hole Injection Layer (HIL), a Hole Transport Layer (HTL), an Electron Transport Layer (ETL), and an Electron Injection Layer (EIL).

[0160] The cathode electrode 323 can be a common electrode and may contain a light-transmitting conductive material. The cathode electrode 323 may contain a transparent conductive material such as ITO or IZO. The cathode electrode 323 may contain aluminum (Al), magnesium (Mg), silver (Ag), or alloys thereof and may have a thin thickness that allows light to pass through.

[0161] A bank insulating layer 132 can be positioned on the anode electrodes 321 of the first and second light-emitting elements (EL1, EL2). The anode electrodes 321 of the first and second light-emitting elements (EL1, EL2) are spaced apart from each other, and the bank insulating layer 132 can be positioned between the anode electrodes 321 of the first and second light-emitting elements (EL1, EL2). The bank insulating layer 132 can cover the edges of the anode electrodes 321. The bank insulating layer 132 may contain an organic insulating material. The bank insulating layer 132 may contain an organic material different from the planarizing layer 125 and may have a single-layer or double-layer structure. Spacers may be further placed on the bank insulating layer 132.

[0162] The bank insulating layer 132 has a plurality of openings through which the anode electrodes 321 of the first and second light-emitting elements (EL1, EL2) are exposed, and can define a plurality of light-emitting regions (EA1, EA2). The light-emitting layers 322 and cathode electrodes 323 of the first and second light-emitting elements (EL1, EL2) can be laminated on the anode electrodes 321 exposed by the openings in the bank insulating layer 132.

[0163] A sealing layer 150 can be positioned on a light-emitting layer 130 containing first and second light-emitting elements (EL1, EL2). The sealing layer 150 can prevent damage to the light-emitting elements (EL1, EL2) from external moisture and impact. The sealing layer 150 can have a multilayer structure. In one embodiment, the sealing layer 150 may include, but is not limited to, a first sealing layer 152, a second sealing layer 154, and a third sealing layer 156 stacked in order. The first sealing layer 152, the second sealing layer 154, and the third sealing layer 156 may contain insulating materials. The second sealing layer 154 may contain a different material from the first sealing layer 152 and the third sealing layer 156. For example, the first sealing layer 152 and the third sealing layer 156 may be inorganic sealing layers containing an inorganic insulating material, and the second sealing layer 154 may be an organic sealing layer containing an organic insulating material. This allows the light-emitting elements (EL1, EL2) of the display device to be more effectively protected from damage from external moisture and impact.

[0164] The touch sensor array 160 may include a first touch insulating layer 162 placed on the sealing layer 150, a bridge electrode (BE) placed on the first touch insulating layer 162, a second touch insulating layer 164 covering the bridge electrode (BE), a black matrix (BM) placed on the second touch insulating layer 164, a third touch insulating layer 166 covering the black matrix (BM), a sensor electrode (SE) and a dummy electrode (DSE) placed on the third touch insulating layer 166, and a fourth touch insulating layer 168 covering the sensor electrode (SE) and the dummy electrode (DSE). The bridge electrode (BE), black matrix (BM), sensor electrode (SE), and dummy electrode (DSE) may be placed in a non-luminescent region that overlaps with the bank insulating layer 132.

[0165] At least one end of the sensor electrode (SE), dummy electrode (DSE), or black matrix (BM) can be superimposed on the ends of the first and second light control elements (L1, L2) in the non-emitting region.

[0166] The optical control array 170 may include optical control elements (L1, L2) arranged on the touch sensor array 160, and a protective layer 172 covering the optical control elements (L1, L2).

[0167] The first light control element (L1) is positioned on the light-emitting region (EA1) of the first light-emitting element (EL1), and the second light control element (L2) is positioned on the light-emitting region (EA2) of the second light-emitting element (EL2), and can control the propagation path of light generated in the light-emitting regions (EA1, EA2).

[0168] The first light control element (L1) can control the propagation path of light generated in the light-emitting region (EA1) of the first light-emitting element (EL1) to a wide field of view in the first direction (X) and to a narrow field of view in the second direction (Y). The second light control element (L2) can control the propagation path of light generated in the light-emitting region (EA2) of the second light-emitting element (EL22) to a narrow field of view in the first and second directions (X, Y).

[0169] The protective layer 172 covering the optical control elements (L1, L2) may contain an organic insulating material. The refractive index of the protective layer 172 may be smaller than that of the optical control elements (L1, L2). As a result, light that has passed through the optical control elements (L1, L2) may not be reflected towards the substrate 110 due to the difference in refractive index with the protective layer 172.

[0170] Figure 13 is a cross-sectional view showing another structure of a subpixel region according to one embodiment.

[0171] In contrast to Figure 12, Figure 13 has the same components except that the width of the black matrix (BMa) is greater than the width of the sensor electrode (SEa) and dummy electrode (DSE). Therefore, explanations for the same components are omitted.

[0172] Referring to Figures 12 and 13, the width of the black matrix (BM, BMa) in the touch sensor array 160 may be smaller or larger than the width of the sensor electrodes (SE, SEa) and the dummy electrode (DSE), respectively. The aperture size of the black matrix (BM, BMa) may be larger or smaller than the aperture size of any of the sensor electrodes (SE), SEa, and dummy electrode (DSE). The superposition area of ​​the black matrix (BM, BMa) and the optical control elements (L1, L2) may be smaller or larger than the superposition area of ​​the sensor electrodes (SE, SEa) and the dummy electrode (DSE) and the optical control elements (L1, L2).

[0173] Figure 14 is a plan view showing an enlarged view of the contact area structure in the pixel region shown in Figure 11, and Figure 15 is a cross-sectional view showing the contact area structure along the II-II' cutting line shown in Figure 14.

[0174] Referring to Figures 14 and 15, in the contact portion (CNT), the sensor electrode (SE) can be electrically connected to the bridge electrode (BE) via the contact holes (CH1, CH2, CH3) of the touch insulating layers 164 and 166.

[0175] A bridge electrode (BE) can be placed on the first touch insulating layer 162.

[0176] A second touch insulating layer 164 having a first contact hole (CH1) that exposes the bridge electrode (BE) can be placed on a first touch insulating layer 162 on which the bridge electrode (BE) is arranged.

[0177] A black matrix (BM) having an opening (BH3) larger than the first contact hole (CH1) can be placed on the second touch insulating layer 164. The size of the opening (BH3) of the black matrix (BM) in the contact portion (CNT) may be larger than the size of the bridge electrode (BE). The width of the opening (BH3) of the black matrix (BM) in the second direction (Y) may be larger than the width of the bridge electrode (BE).

[0178] A third touch insulating layer 166 having second and third contact holes (CH2, CH3) can be placed on a second touch insulating layer 164 on which a black matrix (BM) is arranged. The size of the third contact hole (CH3) may be larger than the size of the second contact hole (CH2). The second and third contact holes (CH2, CH3) of the second touch insulating layer 164, which are of different sizes, can be formed using a halftone mask process.

[0179] Sensor electrodes (SE) are placed on the third touch insulating layer 166 and can be connected to bridge electrodes (BE) via contact holes (CH1, CH2, CH3). The sensor electrodes (SE) can be arranged in a gently stepped configuration via contact holes (CH1, CH2, CH3) of different sizes, and by arranging them in a gently stepped configuration even on the relatively thick third touch insulating layer 166, disconnection of the sensor electrodes (SE) can be prevented.

[0180] Figures 16A and 16B show a comparison of the light propagation paths in the subpixel region of the display panel according to the comparative example and the embodiment, and Figure 17 is a graph showing the effect of reducing light leakage in the display device according to the embodiment compared to the comparative example.

[0181] Referring to Figure 16A, the touch sensor array 260 in the comparative example display panel may include first and second barriers (B1, B2) superimposed on the edges of the optical control element (L2). The first barrier (B1) may be a sensor electrode, and the second barrier (B2) may be a black matrix. The pitch between adjacent subpixel light-emitting elements (EL2) may have a first pitch (24 μm). The size of the aperture of the first barrier (B1) superimposed on the optical control element (L2) may be smaller than the size of the aperture of the second barrier (B2) superimposed on the optical control element (L2).

[0182] Referring to Figures 16A and 17, in the comparative example display panel, the light 51 emitted from the light-emitting region (EA2) of the light-emitting element (EL2) and proceeding to the first optical path can be limited in the first direction (X) to within the cutoff angle (±30 degrees) by the barriers (B1, B2) and the optical control element (L1), and the leaked light 52 of the second optical path, which has a relatively small emission angle, can be blocked by the second barrier (B2). However, the first pitch (24 μm) between adjacent subpixel light-emitting elements (EL2) is insufficient, which can cause leaked light 53 of the third optical path, which has a relatively large emission angle, to occur, and the reflected light 54 of the fourth optical path, which is reflected by the second barrier (B2) and adjacent light-emitting elements (EL2), can be seen to cause light leakage at a viewing angle (±65 to 80 degrees) larger than the cutoff angle (±30 degrees).

[0183] On the other hand, referring to Figure 16B, in one embodiment of the display panel, the touch sensor array 160 may include a black matrix (BM) and sensor electrodes (SE) or dummy electrodes (DSE) superimposed on the edges of the optical control element (L2). The black matrix (BM) contains a black resin material that can block reflected light, and the pitch between adjacent subpixel light-emitting elements (EL2) can be set to a second pitch (28 μm) that is larger than the first pitch (24 μm). The size of the aperture of the black matrix (BM) superimposed on the optical control element (L2) may be smaller than the size of the aperture of the sensor electrodes (SE) or dummy electrodes (DSE) superimposed on the optical control element (L2).

[0184] Referring to Figures 16B and 17, in a display panel according to one embodiment, the light 51 emitted from the light-emitting region (EA2) of the light-emitting element (EL2) and proceeding to the first optical path can be limited in the first direction (X) to within the cutoff angle (±30 degrees) by the barriers (B1, B2) and the optical control element (L1). The first pitch (28 μm) between adjacent subpixel light-emitting elements (EL2) is sufficient, and the leaked light 52 in the second optical path with a large emission angle can be blocked by the sensor electrode (SE) or dummy electrode (DSE), the leaked light 53 in the third optical path with a large emission angle can also be blocked by the black matrix (BM), and the light proceeding to the fourth optical path is blocked from reflection by the black matrix (BM), thus blocking light leakage at a viewing angle greater than the cutoff angle (±30 degrees).

[0185] Figures 18 and 19 are schematic cross-sectional views showing the subpixel structure of a display panel according to one embodiment.

[0186] Referring to Figures 18 and 19, a subpixel according to one embodiment may include a light-emitting layer 130 containing light-emitting elements (EL1, EL2), a sealing layer 150 disposed on the light-emitting layer 130, a black matrix (BM) stacked on the sealing layer 150, a touch sensor array 160 containing sensor electrodes (SE) and dummy electrodes (DSE), and an optical control array 170 containing optical control elements (L1, L2) disposed on the touch sensor array 160.

[0187] Referring to Figure 18, in order to improve light efficiency, the second light control element (L2) may have a light-receiving surface larger than the size of the light-emitting region (EA2) of the second light-emitting element (EL2), so as to overlap with the light-emitting region (EA2) and also with the non-light-emitting region surrounding the light-emitting region (EA2). To block light leakage, the size of the opening of the black matrix (BM) placed in the non-light-emitting region may be larger or smaller than the size of the light-receiving surface of the second light control element (L2), and the edges of the black matrix (BM) may not overlap with or overlap with the edges of the second light control element (L2). To block light leakage, the size of the opening of the sensor electrode (SE) or dummy electrode (DSE) placed in the non-light-emitting region may be smaller than the size of the light-receiving surface of the second light control element (L2), and the edges of the sensor electrode (SE) or dummy electrode (DSE) may overlap with the edges of the second light control element (L2). As a result, the second light control element (L2) can limit the cutoff angles of the light emitted from the second light-emitting element (EL2) in the first and second directions (X, Y) to within specific values, thereby ensuring a narrow viewing angle characteristic in the second direction (Y).

[0188] In a second type subpixel (SP2, see Figure 11) according to one embodiment, the distance (D1) in the first direction (X) between the end of the sensor electrode (SE) placed in the non-emitting region and the end of the bank insulating layer 132 that determines the light-emitting region (EA2) of the second light-emitting element (EL2) can be set to approximately 16 μm. This allows the sensor electrode (SE) to not only block light leakage from the second light-emitting element (EL2) but also to maximize the area of ​​the sensor electrode (SE) in the non-emitting region, thereby improving touch sensing sensitivity.

[0189] Referring to Figures 18 and 19, in order to improve optical efficiency, the first optical control element (L1) can have a light-receiving surface larger than the size of the light-emitting region (EA1) so as to overlap with the light-emitting region (EA1) of the second light-emitting element (EL1) and also overlap with the non-light-emitting region surrounding the light-emitting region (EA1). In order to ensure a wide viewing angle characteristic in the first direction (X), in the non-light-emitting region in the first direction (X), the first optical control element (L1) can not overlap with the black matrix (BM) and the sensor electrode (SE) or dummy electrode (DSE).

[0190] In one embodiment, the distance (D2) in the first direction (X) between the end of the first light control element (L1) and the end of the bank insulating layer 132 that determines the light-emitting region (EA1) of the first light-emitting element (EL1) can be set to approximately 15 μm. This allows the first light control element (L1) not only to block light leakage from the second light-emitting element (EL2), but also to increase the cutoff angle in the first direction (X) and ensure a wide viewing angle characteristic in the first direction (X).

[0191] Referring to Figure 19, in one embodiment, the length in the first direction (X) of the end of the sensor electrode (SE) or dummy electrode (DSE) that overlaps with the end of the first light control element (L1) in the second direction (Y) may be longer than the length in the first direction of the first light-emitting region of the first light-emitting element (EL1). In one embodiment, the distance (D3) in the first direction (X) between the end of the sensor electrode (SE) or dummy electrode (DSE) that overlaps with the end of the first light control element (L1) in the second direction (Y) and the end of the light-emitting region (end of the bank insulating layer) of the light-emitting element (EL1) can be set to about 5 μm. This makes it possible to block diagonal light leakage caused by light emitted from the first light-emitting element (EL1) traveling diagonally and leaking out, and to maximize the area of ​​the sensor electrode (SE) or dummy electrode (DSE) in the non-light-emitting region and improve touch sensing sensitivity.

[0192] In one embodiment, the distance in the second direction (Y) between the end of the first light control element (L1) in the second direction and the end of the sensor electrode (SE) or dummy electrode (DSE) can be set to approximately 2 μm. This allows the first light control element (L1) to limit the cutoff angle of the light emitted from the first light-emitting element (EL1) in the second direction (Y) to within a specific value, thereby ensuring a narrow field of view characteristic in the second direction (Y).

[0193] Figure 20 is a graph showing the effect of improving the viewing angle cutoff ratio of a display device according to one embodiment.

[0194] Referring to Figure 20, in a display device according to one embodiment, if the pitch between the second light-emitting elements of adjacent subpixels emitting light in privacy mode is 26 μm or less, the cutoff ratio for red light (R) and blue light (B) is 0% at the cutoff angle (30 to 60 degrees) in the first direction (X, L / R), indicating that light leakage can be blocked. However, the cutoff ratio for green light (G) is 0.6 to 0.7%, indicating that slight light leakage may occur.

[0195] In one embodiment, it was found that when the pitch between the second light-emitting elements of adjacent subpixels emitting in privacy mode is 28 μm or more, the cutoff ratio of red light (R), green light (G), and blue light (B) is 0% at a cutoff angle (30 to 60 degrees) in the first direction (X, L / R), thus blocking light leakage.

[0196] Figures 20A and 20B are graphs showing the effect of reducing the color perception difference of a display device according to one embodiment compared to a comparative example.

[0197] In the comparative example and the display device according to one embodiment, the optical control elements (L1, L2) can have different refractive indices depending on the optical wavelength. For example, in the first and second lenses, which are optical control elements (L1, L2), the refractive index for blue light (B) with a center wavelength of 450 nm may be 1.68, the refractive index for green light (G) with a center wavelength of 550 nm may be 1.65, and the refractive index for red light (R) with a center wavelength of 650 nm may be 1.63.

[0198] Referring to Figure 21A, it can be seen that in the comparative example display device, the first and second light-emitting elements of the red, green, and blue subpixels have the same light-emitting area without any difference between colors. As a result, around the viewing angle cutoff angle (30 degrees), the luminance reduction rate of blue light (R) increases more than that of red light (R), which can cause a color difference such as yellowish.

[0199] On the other hand, referring to Figure 21B, in one embodiment of the display device, the first light-emitting elements (EL11, EL21, EL31, Figure 10) and second light-emitting elements (EL12, EL22, EL32, Figure 10) of the red, green, and blue subpixels can have different light-emitting areas for each color. In one embodiment, the size of the light-emitting area can be increased in the order of red, green, and blue subpixels, similar to the order of the refractive indices of the red / green / blue light (R / G / B) of the lenses which are light control elements (L1, L2). As a result, the luminance reduction rate of blue light (R) decreases more than that of red light (R) around the viewing angle cutoff angle (30 degrees), minimizing color perception differences such as yellowish, and thereby improving display performance such as display quality.

[0200] As described above, the display device according to one embodiment can not only control the viewing angle according to the user's needs by separately driving the light-emitting elements of each subpixel, but can also ensure narrow and wide viewing angle characteristics through viewing angle control by appropriately arranging the black matrix, sensor electrodes, and dummy electrodes that function as light barriers in the touch sensor array so as to be superimposed and non-superimposed with the light control elements in the non-light-emitting region, thereby blocking light leakage due to stray and reflected light and improving display performance such as brightness and display quality.

[0201] In one embodiment, the display device can improve touch sensing sensitivity and thus enhance touch sensing performance by maximizing the area of ​​the sensor electrodes and dummy electrodes placed in the non-light-emitting region of the touch sensor array.

[0202] In one embodiment, the display device differentiates the size of the light-emitting area according to wavelength, and minimizes color differences such as yellowish tint near the cutoff angle of the viewing angle due to the refractive index difference of the optical control element for each wavelength, thereby improving display performance such as display quality.

[0203] A display device according to one embodiment can also achieve low power consumption by improving touch sensing performance and display performance.

[0204] A display device according to one embodiment includes a pixel circuit, a pixel array including a first light-emitting element and a plurality of subpixels including a second light-emitting element connected to the pixel circuit, a sealing layer disposed on the pixel array to seal the light-emitting layer including the first and second light-emitting elements, a touch sensor array disposed on the sealing layer and superimposed on the non-emitting region of the pixel array and including a black matrix, sensor electrodes, and dummy electrodes, and an optical control array disposed on the touch sensor array and superimposed on the first light-emitting element and a second light-control element superimposed on the second light-emitting element, wherein the sensor electrodes can be disposed in the non-emitting region of the first type subpixel among the plurality of subpixels, and the dummy electrodes can be disposed in the non-emitting region of the second type subpixel and the third type subpixel among the plurality of subpixels.

[0205] In a display device according to one embodiment, the pixel array includes a first column line and a second column line adjacent in a first direction, the first column line includes a plurality of first type subpixels arranged along a second direction different from the first direction, the second column line includes a plurality of second and third subpixels in which second type subpixels and third type subpixels are arranged alternately along the second direction, the first type subpixels are arranged adjacent to the second and third type subpixels in the first direction, the second and third type subpixels are arranged adjacent to each other in the second direction, and the first to third type subpixels can emit light of different colors from each other.

[0206] In a display device according to one embodiment, the first type subpixel includes a first-first light-emitting element having a first-first light-emitting region that is longer in the first direction than in the second direction, and a plurality of first-second light-emitting elements having a size smaller than the first-first light-emitting region and separated in the second direction with the first-first light-emitting element in between, and the plurality of first-second light-emitting elements can share an anode electrode connected to the pixel circuit of the first type subpixel.

[0207] In a display device according to one embodiment, the second type subpixel includes a second-first light-emitting element having a second-first light-emitting region that is longer in the first direction than in the second direction, and a plurality of second-second light-emitting elements having a size smaller than the second-first light-emitting region and a plurality of second-second light-emitting regions spaced apart from the second light-emitting element in the second direction, wherein the plurality of second-second light-emitting elements are arranged parallel to the first direction, and the second-second light-emitting elements can share an anode electrode connected to the pixel circuit of the second type subpixel.

[0208] In a display device according to one embodiment, the third type subpixel includes a third-first light-emitting element having a third-first light-emitting region that is longer in the first direction than in the second direction, and a plurality of third-second light-emitting elements having a size smaller than the third-first light-emitting region and being separated from the third-first light-emitting element in the second direction, wherein the plurality of third-second light-emitting elements are arranged parallel to the first direction and adjacent to the plurality of second-second light-emitting elements in the second direction, and the third-second light-emitting elements can share an anode electrode connected to the pixel circuit of the third type subpixel.

[0209] In a display device according to one embodiment, the optical control array includes a first-first optical control element, a second-first optical control element, a third-first optical control element individually superimposed on a first-first light-emitting element, a second-first light-emitting element, a third-first light-emitting element, and a plurality of first-second optical control elements, a plurality of second-second optical control elements, and a plurality of third-second optical control elements individually superimposed on a plurality of first-second light-emitting elements, a plurality of second-second light-emitting elements, and a plurality of third-second optical control elements, wherein the size of the light-receiving surface of each of the first-first optical control elements, a second-first optical control element, and a third-first optical control element may be larger than the size of the light-receiving surface of each of the plurality of first-second optical control elements, a plurality of second-second optical control elements, and a plurality of third-second optical control elements.

[0210] In a display device according to one embodiment, the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element each have light-emitting regions of different sizes for each color, and the multiple 1-2 light-emitting elements, multiple 2-2 light-emitting elements, and multiple 3-2 light-emitting elements each have light-emitting regions of different sizes for each color, and the 1-1 light control element, the 2-1 light control element, and the 3-1 light control element each have a light-receiving surface size proportional to the size of the light-emitting regions of the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light control element each have a light-receiving surface size proportional to the size of the light-emitting regions of the multiple 1-2 light-emitting elements, multiple 2-2 light-emitting elements, and multiple 3-2 light-receiving elements.

[0211] In a display device according to one embodiment, the touch sensor array includes a plurality of sensor electrodes arranged along a first column line, and each of the plurality of sensor electrodes can be separated from adjacent sensor electrodes in the second direction with respect to the first-1 light-emitting element.

[0212] In a display device according to one embodiment, each of the plurality of sensor electrodes may include a first sensor electrode portion arranged in a non-emitting region around a plurality of first- and second-generation light-emitting elements of a first-type subpixel, a second sensor electrode portion arranged in a non-emitting region around a plurality of second- and second-generation light-emitting elements of a second-type subpixel adjacent to the first-type subpixel and symmetrical to the first sensor electrode portion in a second direction, and a third sensor electrode portion connecting the first sensor electrode portion and the second sensor electrode portion.

[0213] In a display device according to one embodiment, the touch sensor array further includes a bridge electrode superimposed between a sensor electrode and a touch insulating layer, the bridge electrode being connected to a first sensor electrode portion and a second sensor electrode portion via a plurality of contact portions, and a third sensor electrode portion can be positioned in a second direction between the plurality of contact portions.

[0214] In a display device according to one embodiment, each of the first sensor electrode portion and the second sensor electrode portion may include a first portion surrounding the second light-emitting element and a second portion having a smaller area than the first portion, superimposed on one of the plurality of contact portions.

[0215] In a display device according to one embodiment, the bridge electrode may include a first bridge electrode portion and a second bridge electrode portion that extend along the first column line on both sides of the first column line and overlap with the sensor electrode and the dummy electrode, and are symmetrical in the first direction, as well as a third bridge electrode portion that connects the first and second bridge electrode portions at each of the multiple contact portions.

[0216] In a display device according to one embodiment, the first and second bridge electrode portions extending along the first column line may have a pattern configuration in which the distance between them in the first direction is variable along the second direction.

[0217] In a display device according to one embodiment, the first and second bridge electrode portions extending along the first column line overlap with the dummy electrode in the non-emitting region adjacent to the 1-1 light control element in the first direction, having the maximum mutual spacing in the first direction, and can partially overlap with the sensor electrode in the non-emitting region between the multiple contact portions and the 2-1 and 3-1 light control elements, having the minimum mutual spacing in the first direction.

[0218] In a display device according to one embodiment, the first and second bridge electrode portions extending along the first column line may have a diagonal pattern that is superimposed via a dummy electrode and a sensor electrode between the portion with the maximum mutual spacing and the portion with the minimum mutual spacing.

[0219] In a display device according to one embodiment, each of the multiple contact portions may include a third bridge electrode portion disposed on a first touch insulating layer on a sealing layer, a second touch insulating layer disposed on the first touch insulating layer on which the third bridge electrode portion is disposed and having a first contact hole that exposes the third bridge electrode, a black matrix disposed on the second touch insulating layer and having an opening larger than the first contact hole, a third touch insulating layer disposed on the second touch insulating layer on which the black matrix is ​​disposed and having a second contact hole that is larger than the size of the first contact hole but smaller than the opening, and a third contact hole that is larger than the opening, and a sensor electrode disposed on the third touch insulating layer and connected to the third bridge electrode portion via the third, second, and first contact holes.

[0220] In a display device according to one embodiment, the touch sensor array comprises a plurality of dummy electrodes arranged in a non-emitting region of the second column line, separated from the sensor electrodes arranged in the same layer and electrically floating, and the plurality of dummy electrodes may include a first dummy electrode arranged in a non-emitting region around a plurality of 2-2 light-emitting elements adjacent in the second direction and a plurality of 3-2 light-emitting elements, and a second dummy electrode arranged in a non-emitting region between a 3-1 light-emitting element and a 2-1 light-emitting element adjacent in the second direction.

[0221] In a display device according to one embodiment, the first dummy electrode may have a pattern shape that includes a portion having the maximum length in the first direction in a non-emitting region adjacent to the sensor electrode in the first direction, and a portion having the minimum length in the first direction in a non-emitting region between the 1-1 light control elements adjacent in the first direction.

[0222] In a display device according to one embodiment, the second dummy electrode may have a pattern shape that includes a portion having the maximum length in the first direction in a non-emitting region adjacent to the third-first light control element in the second direction, and a portion having the minimum length in the first direction in a non-emitting region adjacent to the second-first light control element in the second direction.

[0223] In a display device according to one embodiment, the first-first light control element limits the viewing angle of light emitted from the first-first light-emitting element together with the sensor electrode and black matrix to within a first cutoff angle in a second direction, and the second-first light control element and the third-first light control element, each together with the dummy electrode and black matrix, can limit the viewing angle of light emitted from the second-first light-emitting element and the third-first light-emitting element, each together with the dummy electrode and black matrix to within a first cutoff angle in a second direction.

[0224] In a display device according to one embodiment, the first-second light control element, together with the sensor electrode and black matrix, limits the viewing angle of the light emitted from the first-second light-emitting element to within a first cutoff angle in the first and second directions, and the second-second light control element and the third-second light control element, together with the dummy electrode and black matrix, can limit the viewing angle of the light emitted from the second-second light-emitting element and the third-second light-emitting element, respectively, to within a first cutoff angle in the first and second directions.

[0225] In a display device according to one embodiment, the first superimposed portion, in which one end of either the sensor electrode or the dummy electrode overlaps with the second-direction end of the first light control element, is separated in the second direction from the end of the light-emitting region of the first light-emitting element, and the second superimposed portion, in which the end of the black matrix overlaps with the second-direction end of the first light control element, is separated in the second direction from the end of the light-emitting region of the first light-emitting element, and the area of ​​the first superimposed portion may be larger or smaller than the area of ​​the second superimposed portion.

[0226] In a display device according to one embodiment, a first aperture of either the sensor electrode or the dummy electrode and a second aperture of the black matrix are superimposed on the first light-emitting element and the first light control element, and the size of the first aperture may be larger or smaller than the size of the second aperture.

[0227] In a display device according to one embodiment, the length in the first direction of the first overlapping portion, in which one end of either the sensor electrode or the dummy electrode overlaps with the end of the first light control element in the second direction, may be longer than the length in the first direction of the first light-emitting element.

[0228] In a display device according to one embodiment, the third superimposed area, in which one end of either the sensor electrode or the dummy electrode overlaps with the end of the second optical control element, is spaced apart from the end of the light-emitting region of the first light-emitting element, and the fourth superimposed area, in which the end of the black matrix overlaps with the end of the second optical control element, is spaced apart from the end of the light-emitting region of the second light-emitting element, and the area of ​​the third superimposed area may be larger or smaller than the area of ​​the fourth superimposed area.

[0229] In a display device according to one embodiment, a third aperture of either the sensor electrode or the dummy electrode and a fourth aperture of the black matrix are superimposed on the second light-emitting element and the second light control element, and the size of the third aperture may be larger or smaller than the size of the fourth aperture.

[0230] In a display device according to one embodiment, each of the 1-1, 2-1, and 3-1 light-emitting elements is provided in the pixel circuit of each of the 1st to 3rd type subpixels and is connected to a first switching transistor controlled by a first mode signal, each of the 1-2, 2-2, and 3-2 light-emitting elements is provided in the pixel circuit of each of the 1st to 3rd type subpixels and is connected to a second switching transistor controlled by a second mode signal, and the first and second switching transistors can be electrically connected to the drive transistors provided in the pixel circuit of each of the 1st to 3rd type subpixels.

[0231] The features, structures, effects, etc., described in the various examples of this specification described above are included in, and not necessarily limited to, at least one example of this specification. Furthermore, the features, structures, effects, etc., exemplified in at least one example of this specification can be combined or modified and implemented in other examples by a person with ordinary skill in the art to which the technical idea of ​​this specification belongs. Accordingly, the content related to such combinations and modifications should be construed as being included in the scope of the technology or rights of this specification.

[0232] This specification, as described above, is not limited by the embodiments and accompanying figures, and it will be apparent to those with ordinary skill in the art to which this specification belongs that various substitutions, modifications, and alterations are possible without departing from the technical matters of this specification. Accordingly, the scope of this specification is indicated by the claims set forth below, and all modified or altered forms derived from the meaning, scope, and equivalent concepts of the claims should be interpreted as being included within the scope of this specification. [Explanation of symbols]

[0233] 100: Display panel 200: Display driver circuit 210, 212: Scan Driver 220: Light control driver 230: Mode control unit 300: Touch sensing circuit 1000: Display device SP: Subpixel L1, L2, L11, L12, L21, L22, L31, L32: Optical control elements EL1, EL2, EL11, EL12, EL21, EL22, EL31, EL32: Light-emitting elements 110: Circuit board 120: Circuit element layer 130: Light-emitting element layer 140: Pixel Array 150: Sealing layer 160: Touch sensor array 170: Optically controlled array 180: Optically transparent adhesive 190: Cover board 10: Pixel Circuit 12, 14, 16, 18, 42, 44: Gate line 22: Data Line 24: Reference Line 32: First power line 34: Second power line R2n-1, R2n: Lowline C2m-1, C2m: Column line SE, SE1, SE2, SE3: Sensor electrodes DSE, DSE1, DSE2: Dummy electrodes BE, BE1, BE2, BE2: Bridge electrodes BM: Black Matrix CNT: Contact part EA1, EA2: Illumination area BH1, BH2: Black Matrix Opening OH1: Sensor electrode opening OH2: Dummy electrode opening

Claims

1. A pixel array including a pixel circuit and a plurality of subpixels, each including a first light-emitting element and a second light-emitting element electrically connected to the pixel circuit. A sealing layer is disposed on the pixel array to seal the light-emitting layer including the first and second light-emitting elements. A touch sensor array is disposed on the sealing layer, superimposed on the non-emitting region of the pixel array, and includes a black matrix, sensor electrodes and dummy electrodes, and An optical control array disposed on the touch sensor array, including a first optical control element superimposed on the first light-emitting element and a second optical control element superimposed on the second light-emitting element. Includes, The sensor electrode is positioned in the non-emitting region of the first type subpixel among the plurality of subpixels. A display device in which the dummy electrode is placed in the non-emitting region between the second type subpixel and the third type subpixel among the plurality of subpixels.

2. The pixel array includes a first column line and a second column line that are adjacent to each other in a first direction, The first column line includes a plurality of the first type subpixels arranged along a second direction different from the first direction, The second column line includes a plurality of the second type subpixels and the third type subpixels, the second type subpixels and the third type subpixels are arranged alternately along the second direction, The first type subpixel is arranged adjacent to the second and third type subpixels in the first direction. The second and third type subpixels are arranged adjacent to each other in the second direction, The display apparatus according to claim 1, wherein each of the first to third type subpixels emits light of a different color.

3. The first type subpixel is, A first-first light-emitting element having a first-first light-emitting region that is longer in the first direction than in the second direction, and A plurality of first- and second light-emitting elements, each having a smaller size than the first-1 light-emitting region and separated in the second direction with respect to the first-1 light-emitting element. Includes, The display apparatus according to claim 2, wherein the plurality of first- and second light-emitting elements share an anode electrode electrically connected to the pixel circuit of the first type subpixel.

4. The second type subpixel is A second-first light-emitting element having a second-first light-emitting region that is longer in the first direction than in the second direction, and Multiple second- and second-second light-emitting regions having a size smaller than the second-first light-emitting region and separated from the second light-emitting region in the second direction. Includes, The plurality of second-2 light-emitting elements are arranged parallel to the first direction, The display apparatus according to claim 3, wherein the second-second light-emitting element shares an anode electrode electrically connected to the pixel circuit of the second type subpixel.

5. The third type subpixel is, A third-first light-emitting element having a third-first light-emitting region that is longer in the first direction than in the second direction, and It includes a plurality of third-second light-emitting regions having a size smaller than the third-first light-emitting region and a plurality of third-second light-emitting regions spaced apart from the third-first light-emitting region in the second direction, The plurality of third-2 light-emitting elements are arranged parallel to the first direction and adjacent to the plurality of second-2 light-emitting elements in the second direction. The display apparatus according to claim 4, wherein the plurality of third-2 light-emitting elements share an anode electrode electrically connected to the pixel circuit of the third type subpixel.

6. The aforementioned optical control array, The first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element are individually superimposed on the first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-control element, and The system includes the plurality of first- and second-luminescent elements, the plurality of second- and second-luminescent elements, and the plurality of first- and second-luminescent elements, and the plurality of third- and second-luminescent elements, each individually superimposed with the plurality of first- and second-luminescent elements. The display device according to claim 5, wherein the size of the light-receiving surface of each of the first-1 light control element, the second-1 light control element, and the third-1 light control element is larger than the size of the light-receiving surface of each of the plurality of first-2 light control elements, the plurality of second-2 light control elements, and the plurality of third-2 light control elements.

7. The first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element each have light-emitting regions of different sizes for each color. The plurality of first- and second-emitting elements, the plurality of second- and second-emitting elements, and the plurality of third- and second-emitting elements each have light-emitting regions of different sizes for each color. The first-1 light control element, the second-1 light control element, and the third-1 light control element have a light-receiving surface size that is proportional to the size of the light-emitting region of the first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element. The display device according to claim 6, wherein the plurality of first- and second-light control elements, the plurality of second- and second-light control elements, and the plurality of third- and second-light control elements have a light-receiving surface size proportional to the size of the light-emitting regions of the plurality of first- and second-light-emitting elements, the plurality of second- and second-light-emitting elements, and the plurality of third- and second-light-emitting elements.

8. The aforementioned touch sensor array The sensor electrodes include a plurality of sensors arranged along the first column line, The display device according to claim 6, wherein each of the plurality of sensor electrodes is separated from another sensor electrode adjacent to it in the second direction with respect to the first-1 light-emitting element.

9. Each of the aforementioned plurality of sensor electrodes, A first sensor electrode portion is positioned in the non-emitting region surrounding the plurality of first- and second light-emitting elements of the first type subpixel, A second sensor electrode portion is positioned in the non-emitting region around the plurality of second-2 light-emitting elements of the second type subpixel adjacent to the first type subpixel, and The display device according to claim 8, further comprising a third sensor electrode portion that electrically connects the first sensor electrode portion and the second sensor electrode portion.

10. The touch sensor array further includes a bridge electrode superimposed on the sensor electrode with a touch insulating layer in between. The bridge electrode is electrically connected to the first sensor electrode portion and the second sensor electrode portion via a plurality of contact portions. The display device according to claim 9, wherein the third sensor electrode portion is arranged between the plurality of contact portions in the second direction.

11. Each of the first sensor electrode portion and the second sensor electrode portion is, The first portion surrounding the second light-emitting element, and A second portion that overlaps with any one of the aforementioned multiple contact portions and has a smaller area than the first portion. The display device according to claim 10, including the following:

12. The aforementioned bridge electrode A first bridge electrode portion and a second bridge electrode portion extend from both sides of the first column line, along the first column line, and overlap with the sensor electrode and the dummy electrode, The display device according to claim 10, wherein each of the plurality of contact portions includes a third bridge electrode portion that electrically connects the first bridge electrode portion to the second bridge electrode portion.

13. The display device according to claim 12, wherein the first and second bridge electrode portions extending along the first column line have a pattern shape in which the distance between them in the first direction changes along the second direction.

14. The first and second bridge electrode portions extending along the first column line overlap the dummy electrode with the maximum mutual spacing in the first direction in the non-emitting region adjacent to the 1-1 light control element in the first direction. The display device according to claim 13, wherein in the non-emitting region between the plurality of contact portions and the 2-1 and 3-1 light control elements, the sensor electrodes are partially superimposed with a minimum mutual spacing in the first direction.

15. The display device according to claim 14, wherein the first and second bridge electrode portions extending along the first column line have a diagonal pattern shape that superimposes on the dummy electrode and the sensor electrode between the maximum mutual distance and the minimum mutual distance.

16. Each of the aforementioned multiple contact portions The third bridge electrode portion, which is disposed on the first touch insulating layer on the sealing layer, A second touch insulating layer is disposed on the first touch insulating layer on which the third bridge electrode portion is arranged, and has a first contact hole that exposes the third bridge electrode portion. The black matrix, which is disposed on the second touch insulating layer and has an opening larger than the first contact hole, A third touch insulating layer is disposed on the second touch insulating layer on which the black matrix is ​​arranged, and comprises a second contact hole that is larger than the size of the first contact hole but smaller than the opening, and a third contact hole that is larger than the opening, and The display device according to claim 12, comprising the sensor electrode disposed on the third touch insulating layer and electrically connected to the third bridge electrode portion via the third, second, and first contact holes.

17. The touch sensor array is arranged in a non-luminescent region of the second column line and comprises a plurality of dummy electrodes that are electrically levitated and separated from the sensor electrodes arranged in the same layer. The aforementioned multiple dummy electrodes are, A first dummy electrode is arranged in a non-emitting region around the plurality of second-2 light-emitting elements and the plurality of third-2 light-emitting elements that are adjacent to each other in the second direction, and A second dummy electrode is positioned in the non-emitting region between the third-first light-emitting element and the second-first light-emitting element, which are adjacent to each other in the second direction. The display device according to claim 8, including the following:

18. The first dummy electrode is The display device according to claim 17, having a pattern shape that includes a portion having the maximum length in the first direction in a non-emitting region adjacent to the sensor electrode in the first direction, and a portion having the minimum length in the first direction in a non-emitting region between adjacent 1-1 light control elements in the first direction.

19. The second dummy electrode is The display device according to claim 17, having a pattern shape that includes a portion having the maximum length in the first direction in a non-emitting region adjacent to the third-first light control element in the second direction, and a portion having the minimum length in the first direction in a non-emitting region adjacent to the second-first light control element in the second direction.

20. The first light control element, together with either the sensor electrode or the dummy electrode and the black matrix, limits the viewing angle of the light emitted from the first light-emitting element to within a first cutoff angle in a second direction. The display device according to claim 1, wherein the second light control element, together with either the sensor electrode or the dummy electrode and the black matrix, limits the viewing angle of the light emitted from the second light-emitting element to within the first cutoff angle in the first and second directions.

21. The first superimposed portion, in which one end of either the sensor electrode or the dummy electrode overlaps with the second-direction end of the first light control element, is separated in the second direction from the end of the light-emitting region of the first light-emitting element. The second overlapping portion, in which the edge of the black matrix overlaps with the edge of the first light control element in the second direction, is separated in the second direction from the edge of the light-emitting region of the first light-emitting element. The display device according to claim 1, wherein the area of ​​the first superimposed portion is greater than or less than the area of ​​the second superimposed portion.

22. The first aperture of either the sensor electrode or the dummy electrode and the second aperture of the black matrix are superimposed on the first light-emitting element and the first light control element. The display device according to claim 1, wherein the size of the first opening is larger or smaller than the size of the second opening.

23. The display device according to claim 1, wherein the length in the first direction of the first overlapping portion in which one end of either the sensor electrode or the dummy electrode overlaps with the end of the first light control element in the second direction is longer than the length in the first direction of the first light-emitting element.

24. A third overlapping portion, in which one end of either the sensor electrode or the dummy electrode overlaps with the end of the second light control element, is separated from the end of the light-emitting region of the first light-emitting element. The fourth overlapping portion, in which the edge of the black matrix overlaps with the edge of the second light control element, is separated from the edge of the light-emitting region of the second light-emitting element. The display device according to claim 1, wherein the area of ​​the third superimposed portion is greater than or less than the area of ​​the fourth superimposed portion.

25. The third aperture of either the sensor electrode or the dummy electrode and the fourth aperture of the black matrix are superimposed on the second light-emitting element and the second light-controlling element. The display device according to claim 1, wherein the size of the third opening is larger or smaller than the size of the fourth opening.

26. Each of the 1-1, 2-1, and 3-1 light-emitting elements is connected to a first switching transistor provided in the pixel circuit of each of the 1st to 3rd type subpixels and controlled by a first mode signal. Each of the first- and second- and third-2 light-emitting elements is connected to a second switching transistor provided in the pixel circuit of each of the first to third type subpixels and controlled by a second mode signal. The display apparatus according to claim 5, wherein the first and second switching transistors are electrically connected to the drive transistors provided in each pixel circuit of the first to third type subpixels.

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