Display apparatus

Abstract

A display device capable of selectively controlling the viewing angle and improving optical characteristics includes a pixel array containing pixel circuits and sub-pixels, wherein each sub-pixel includes first and second light-emitting elements connected to the pixel circuits; an encapsulation layer disposed on the pixel array to seal the light-emitting element layer containing the first and second light-emitting elements; a touch sensor array including a black matrix, sensor electrodes, and dummy electrodes disposed on the encapsulation layer and overlapping the non-light-emitting areas of the pixel array; and a light control array including first and second light control elements overlapping the first and second light-emitting elements, the light control array being disposed on the touch sensor array; sensor electrodes being disposed in the non-light-emitting areas of a first type of sub-pixel between sub-pixels; and dummy electrodes being disposed in the non-light-emitting areas of a second and third type of sub-pixel between sub-pixels.

Description

Technical Field

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

[0002] This type of display device can be used in a variety of electronic devices. The display device may include a touch sensor embedded therein.

[0003] Among the various display devices installed in vehicles, those positioned in front of the passenger seat need to limit the driver's viewing angle based on driving conditions. The viewing angle also needs to be limited in accordance with user privacy and information protection requirements.

[0004] Display devices can use safety film to limit the viewing angle of the displayed image. However, safety film can significantly reduce the brightness of the display device and fix the viewing angle limitation, causing inconvenience to users. Summary of the Invention

[0005] Therefore, this disclosure aims to provide a display device that largely avoids one or more problems arising from the limitations and drawbacks of prior art.

[0006] One aspect of this disclosure provides a display device that can selectively control the viewing angle and improve optical properties.

[0007] Other advantages and features of this disclosure will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon review of the following, or may be learned from practice of this disclosure. The purposes and other advantages of this disclosure may be realized and obtained through the structures particularly pointed out in the written description herein, the claims, and the figures.

[0008] To achieve the aforementioned and other advantages according to this disclosure, as specifically embodied and broadly described herein, the display device provided by this disclosure may include a pixel array, including pixel circuitry and a plurality of sub-pixels, the sub-pixels including a first light-emitting element and a second light-emitting element connected to the pixel circuitry; an encapsulation layer disposed on the pixel array to seal the light-emitting element layer including the first and second light-emitting elements; a touch sensor array including a black matrix, sensor electrodes, and dummy electrodes disposed on the encapsulation layer and overlapping the non-light-emitting areas of the pixel array; and a light control array 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 light control array being disposed on the touch sensor array; wherein the sensor electrodes are disposed in the non-light-emitting areas of a first type of sub-pixel between the plurality of sub-pixels; and the dummy electrodes are disposed in the non-light-emitting areas of a second type of sub-pixel and a third type of sub-pixel between the plurality of sub-pixels.

[0009] It should be understood that the foregoing general description of this disclosure and the following detailed description of this disclosure are exemplary and explanatory, and are intended to provide further interpretation of this disclosure in accordance with the claimed protection. Simple Explanation of the Diagram

[0010] The drawings are included to provide a further understanding of this disclosure and are incorporated in and constitute a part of this application, illustrating the disclosed embodiments and, together with the description, serving to explain the principles of the disclosure. In the drawings:

[0011] Figure 1 is a schematic diagram illustrating the configuration of a display device according to an embodiment of the present disclosure.

[0012] Figure 2 is a schematic cross-sectional view illustrating an example of a display panel structure according to an embodiment of the present disclosure.

[0013] Figure 3 is a schematic diagram illustrating the configuration of sub-pixels according to an embodiment.

[0014] Figures 4A and 4B are schematic diagrams showing the structures of the first and second light control elements according to embodiments of the present disclosure.

[0015] Figure 5 is a schematic diagram illustrating a display device according to an embodiment of the present disclosure used in a vehicle.

[0016] Figure 6 is an equivalent circuit diagram illustrating an example of a sub-pixel configuration according to an embodiment of the present disclosure.

[0017] Figure 7 is a schematic diagram illustrating an example of a driving waveform for a sub-pixel according to an embodiment of the present disclosure.

[0018] Figure 8 is an enlarged planar schematic diagram showing an example of the structure of region A in the display panel according to the embodiment shown in Figure 1.

[0019] Figure 9 is a plan view showing an example of the structure of region A shown in Figure 8, which contains a black matrix.

[0020] Figure 10 is an enlarged planar schematic diagram showing an example of the pixel region structure among the multiple regions A shown in Figure 8.

[0021] Figure 11 is a planar schematic diagram illustrating an example of the pixel region structure containing the black matrix shown in Figure 10.

[0022] Figure 12 is a cross-sectional schematic diagram showing an example of the sub-pixel region structure obtained along line I-I' in the pixel region shown in Figure 11.

[0023] Figure 13 is a cross-sectional schematic diagram illustrating an example of another structure of a sub-pixel region according to an embodiment of the present disclosure.

[0024] Figure 14 is an enlarged planar schematic diagram showing an example of the structure of the contact portion in the pixel region shown in Figure 11.

[0025] Figure 15 is a cross-sectional schematic diagram showing a structural example of the contact portion obtained along section line II-II' shown in Figure 14.

[0026] Figures 16A and 16B are schematic diagrams comparing the light travel paths in the sub-pixel regions of a display panel according to a comparative embodiment and an embodiment of the present disclosure.

[0027] Figure 17 is a schematic diagram illustrating the light leakage reduction effect of a display device compared with a comparative embodiment according to the present disclosure.

[0028] Figures 18 and 19 are schematic cross-sectional views illustrating the sub-pixel structure of a display panel according to an embodiment of the present disclosure.

[0029] Figure 20 is a schematic diagram illustrating the enhanced viewing angle cutoff ratio of the display device according to an embodiment of the present disclosure.

[0030] Figures 21A and 21B are schematic diagrams showing the color difference reduction effect of a display device according to one embodiment compared to a comparative embodiment. Implementation

[0031] The advantages, features, and methods for achieving these advantages and features of this disclosure will now be described in detail with reference to the accompanying drawings. However, this disclosure is not limited to the embodiments disclosed herein, and may be implemented in many different forms. The purpose of providing these embodiments is to fully and completely disclose this disclosure and to fully illustrate the scope of protection intended for this disclosure to those skilled in the art.

[0032] The shapes, dimensions, scales, angles, and numbers disclosed in the drawings to illustrate embodiments of this disclosure are merely examples, and therefore, the details shown in the drawings do not constitute a limitation on this disclosure. In all drawings, similar reference numerals refer to similar elements. In the following description, detailed descriptions of related conventional functions or configurations will not be provided where it is believed that such detailed descriptions would obscure the essential points of this disclosure. Unless the word "only" is used, the terms "comprising," "having," or "including" may include another part. Unless otherwise stated, terms used in the singular may include plural cases.

[0033] In the process of explaining a component, although the error or tolerance range is not explicitly stated, the component is interpreted as including an error or tolerance range.

[0034] In the description of positional relationships, for example, when the positional relationship between two components is described as "above", "over", "below" and "adjacent", one or more other components may be arranged between the two components unless more restrictive terms such as "just" or "directly" are used.

[0035] In descriptions of temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous situations may be included unless more restrictive terms such as “just,” “immediately,” or “directly” are used.

[0036] It is understood that although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, and this situation does not depart from the scope of this disclosure.

[0037] In describing the elements disclosed herein, terms such as "first," "second," "A," "B," "(a)," and "(b)" may be used. These terms are intended to identify the corresponding element from other elements, and the basic principles, order, or number of the corresponding elements shall not be limited by these terms. Unless otherwise stated, the expression that an element is "connected," "coupled," or "attached" to another element or layer means that the element or layer is not only directly connected or attached to the other element or layer, but also indirectly connected or attached to the other element or layer, and that one or more intermediate elements or layers are "arranged" or "inserted" between the elements or layers.

[0038] The term "at least one" should be understood to include all possible combinations of one or more of the listed related items. For example, "at least one of the first, second and third items" may mean two or more of the first, second and third items, or any possible combination of the first, second or third items.

[0039] As will be fully understood by those skilled in the art, the features of the embodiments disclosed herein may be coupled or combined in part or in whole, and may interact and influence each other in various ways. The embodiments may be implemented independently of each other or in combination with each other.

[0040] The various aspects of this disclosure will now be described with reference to the accompanying drawings. Since the proportions of the elements shown in the drawings differ from the actual proportions for ease of description, this disclosure is not limited to the proportions shown. Furthermore, all components of each display device according to all aspects of this specification are operatively coupled and configured.

[0041] Figure 1 is a schematic diagram illustrating the configuration of a display device according to an embodiment of the present disclosure; Figure 2 is a schematic cross-sectional schematic diagram illustrating an example of a display panel structure according to an embodiment of the present disclosure; Figure 3 is a schematic diagram illustrating the configuration of sub-pixels according to an embodiment; Figures 4A and 4B are schematic diagrams showing the structures of the first and second light control elements according to an embodiment of the present disclosure; Figure 5 is a schematic diagram showing a display device according to an embodiment of the present disclosure used in a vehicle.

[0042] The display device 1000 according to the embodiment can provide both a display function for displaying images and a touch sensing function for sensing the presence of a user's touch and / or touch coordinates.

[0043] The display device 1000 according to the embodiment may be an electroluminescent display device including a touch sensor or a micro-light-emitting diode display device. The electroluminescent display device including the 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.

[0044] Referring to FIG1, the display device 1000 may include a display panel 100, a display driving circuit 200 for driving the display panel 100, and a touch sensing circuit 300 for driving and sensing an array of touch sensors embedded in the display panel 100. The display device 1000 may further include a power management circuit for generating and providing multiple power supply voltages required for the operation of the display panel 100, the display driving circuit 200, and the touch sensing circuit 300.

[0045] The display panel 100 can be a rigid display panel or a flexible display panel that can be deformed, such as a foldable display panel, a bendable display panel, a rollable display panel, and a stretchable display panel.

[0046] The display panel 100 may include a display area DA for displaying images and a non-display area NDA, wherein the non-display area NDA is a border area surrounding the display area DA and located on the outside. The display panel 100 may further include an array of touch sensors disposed in the display area DA to sense user touch.

[0047] The display panel 100 can display an image using a display area DA, which contains multiple sub-pixels arranged in a matrix. The pixel matrix of the display area DA may include a plurality of column lines composed of multiple sub-pixels arranged along a first direction X and a plurality of row lines composed of multiple sub-pixels arranged along a second direction Y. The display panel 100 may include a plurality of signal lines, including a plurality of gate lines, a plurality of data lines, a plurality of power lines, etc., connected to the multiple sub-pixels.

[0048] These sub-pixels may include red sub-pixels that emit red light, green sub-pixels that emit green light, and blue sub-pixels that emit blue light. These sub-pixels may further include white sub-pixels that emit white light. A unit pixel may contain at least two sub-pixels.

[0049] The display driver circuit 200 may include a data driver that provides data signals to a plurality of data lines of the display panel 100, a gate driver that provides gate signals to a plurality of gate lines, and a timing controller that controls the operation of the data driver and the gate driver.

[0050] The touch sensing circuit 300 may include a touch driving circuit and a touch controller. The touch driving circuit provides touch driving signals to the touch sensor array embedded in the display panel 100 and receives read signals from the touch sensor array to generate sensing data. The touch controller detects the presence of touch and the touch coordinate position based on the sensing data provided by the touch driving circuit.

[0051] The touch sensor array can use a self-capacitance method based on changes in touch sensing self-capacitance, or a mutual capacitance method based on changes in touch sensing mutual capacitance.

[0052] According to the embodiment, the display panel 100 can control the viewing angle according to a viewing angle mode. The display area DA of the display panel 100 can display an image in a first viewing angle mode, which has a relatively wide viewing angle relative to a first direction, or in a second viewing angle mode, which has a narrower viewing angle relative to the first direction than the first viewing angle mode. The first viewing angle mode can be described as a wide viewing angle mode or a shared mode. The second viewing angle mode can be described 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 allows switching between the shared mode and the privacy mode.

[0053] Referring to FIG2, the display panel 100 according to the embodiment may include a pixel array 140 and an encapsulation layer 150. The pixel array 140 includes a circuit element layer 120 disposed on a substrate 110, comprising a plurality of transistors and a plurality of signal lines, and a light-emitting element layer 130 comprising a plurality of light-emitting elements EL1 and EL2 disposed on the circuit element layer 120. The encapsulation layer 150 is disposed on the pixel array 140 to seal the light-emitting element layer 130. The display panel 100 may include a touch sensor array 160 and a light control array 170. The touch sensor array 160 includes a plurality of sensors disposed on the encapsulation layer 150, and the light control array 170 includes a plurality of light control elements L1 and L2 disposed on the touch sensor array 160. The display panel 100 may further include a cover substrate 190 coupled to the light control array 170 through an optically clear adhesive (OCA) 180.

[0054] The touch sensor array 160 according to an embodiment may include sensor electrodes, dummy electrodes, and a black matrix configured as non-light-emitting areas of overlapping light-emitting elements EL1 and EL2. At least one of the sensor electrodes, dummy electrodes, and the black matrix according to an embodiment overlaps the ends of light control elements L1 and L2 to block light, thereby preventing light leakage due to light leakage or reflection. At least one of the sensor electrodes, dummy electrodes, and the black matrix according to an embodiment does not overlap with the end of the first light control element L1 for a wide viewing angle, thereby preventing limitation of the wide viewing angle. This will be described in detail below.

[0055] As shown in Figures 2 and 3, the sub-pixel SP according to the embodiment that can control the viewing angle includes a first light-emitting element EL1, a second light-emitting element EL2 and a pixel circuit 10. The pixel circuit 10 is used to divide and drive the first light-emitting element EL1 and the second light-emitting element EL2 according to the viewing angle mode. The first light control element (L1 in Figure 2) can be superimposed on the first light-emitting element EL1, and the second light control element (L2 in Figure 2) can be superimposed on the second light-emitting element EL2.

[0056] According to the embodiment, the sub-pixel SP can drive the first light-emitting element EL1 in a first viewing angle mode and emit light with a first viewing angle through the first light control element L1. The sub-pixel SP can drive the second light-emitting element EL2 in a second viewing angle mode and emit light with a second viewing angle that is narrower than the first viewing angle through the second light control element L2.

[0057] Referring to Figure 4A, the first light control element L1 may have a long semi-cylindrical lens structure in the first direction X, and the lens structure is not limited to this. Referring to Figure 4B, the second light control element L2 may have a hemispherical lens structure, and the lens structure is not limited to this. In one embodiment, the first light control element L1 and the second light control element L2 may control (or limit) the viewing angle differently in the first direction X, and control (or limit) the viewing angle the same way in the second direction Y.

[0058] According to embodiments, the light control elements L1 and L2 can be formed of fluid materials, semi-fluid materials, or solids. The materials and configurations of the light control elements L1 and L2 are not limited to the foregoing examples. Furthermore, in some cases, the light control elements L1 and L2 may be referred to as light control layers, light control configurations, lenses, or viewing angle control units, but are not limited to these terms.

[0059] In Figures 4A and 4B, the first direction X can represent the left-right direction (e.g., horizontal direction) of the display panel 100, the second direction Y can represent the up-down direction (e.g., vertical direction) of the display panel 100, and the third direction Z can represent the front-back direction (e.g., thickness direction) of the display panel 100.

[0060] In the first viewing angle mode, each sub-pixel SP of the display panel 100 drives the first light-emitting element EL1, and does not restrict the path of the light emitted by the first light-emitting element EL1 within a specific angle in the first direction X, so as to provide light with a wide viewing angle.

[0061] In the second viewing mode, each sub-pixel SP of the display panel 100 can drive the second light-emitting element EL2 and limit the path of the light emitted by the second light-emitting element EL2 through the second light control element L2 within a specific cutoff angle in the first direction X, so as to provide light with a narrow viewing angle.

[0062] The first light control element L1 and the second light control element L2 can control the optical path within a cutoff angle in the second direction Y, thus controlling it to a narrow viewing angle. Therefore, when the display device 1000 shown in FIG5 is applied to a vehicle, it can prevent the image displayed on the display device 1000 from being reflected by the windshield of the vehicle and thus interfering with the driver's vision.

[0063] According to the embodiment, the sub-pixel SP can receive a data voltage Vdata from the data driver of the display driving circuit 200 through any one of the data lines 22. The sub-pixel SP can receive a scan signal SCAN from the gate driver of the display driving circuit 200 through at least one first gate line 12, and can receive a light emission control signal EM through at least one gate line 16. The sub-pixel SP can receive a first mode signal SH from the gate driver of the display driving circuit 200 through any one of the gate lines 42, and can receive a second mode signal PR through any one of the gate lines 44. According to the embodiment, the sub-pixel SP can receive a high-potential power voltage ELVDD from the power management circuit through the first power line 32, a low-potential power voltage ELVSS through the common electrode (cathode) CE and the second power line 34, and can receive a reference voltage Vref through the reference line 24.

[0064] The gate driver can be embedded and disposed in the non-display area NDA of the display panel 100, and this disclosure is not limited thereto; the gate driver can be distributed and disposed in the display area DA. According to the embodiment, the gate driver can be embedded in the display panel 100, which is composed of transistors formed with the same process as the transistors of the display area DA according to the gate in panel (GIP) type.

[0065] The gate driver may include at least one scan driver 210 that drives at least one first gate line 12 and at least one light emission control driver 220 that drives at least one gate line 16. Depending on the detailed configuration of the pixel circuit constituting the sub-pixel SP, the number of gate lines connected to the sub-pixel SP, the number of scan drivers 210, and the number of light emission control drivers 220 may be varied in different ways.

[0066] The scan driver 210 can generate at least one scan signal SCAN and provide it to at least one first gate line 12 disposed in each of a plurality of pixel column lines.

[0067] The light emission control driver 220 can generate at least one light emission control signal EM and provide it to at least one gate line 16 provided in each of the plurality of pixel column lines.

[0068] In one embodiment, the gate driver may further include a mode control unit 230 for providing a first mode signal SH and a second mode signal PR to gate lines 42 and 44.

[0069] The mode control unit 230 can generate a first mode signal SH and provide this first mode signal SH to each of the multiple pixel column lines through any one of the gate lines 42 using a mode selection signal, and can generate a second mode signal PR and provide the second mode signal PR through any one of the gate lines 44. The mode control unit 230 can selectively drive the first light-emitting element EL1 and the second light-emitting element EL2 of each sub-pixel SP using the first mode signal SH and the second mode signal PR.

[0070] In one embodiment, a first mode signal SH and a second mode signal PR can be provided from the light emission control driver 220.

[0071] At least one of LTPS transistors using low-temperature poly-silicon (LTPS) semiconductors and oxide transistors using metal-oxide semiconductors can be applied to a plurality of transistors disposed in the display area DA and the non-display area NDA including the gate driver of the display panel 100. According to an embodiment, the display panel 100 can be configured to allow LTPS transistors and oxide transistors to coexist in order to reduce power consumption.

[0072] Referring to Figure 5, the multiple display devices disposed on the vehicle dashboard may include a cluster, a central information display (CID), and a passenger display (CDD). Display devices that restrict the viewing angle only to a cutoff angle in the second direction Y for safe driving can be used in the cluster and central information display (CID) primarily used by the driver. The display device 1000, which can be used to control the viewing angle in the first and second viewing modes of the aforementioned embodiments, can be used in the central information display (CID) used by the driver (DR) and passenger (PA).

[0073] When the driver (DR) is not driving the vehicle, the co-driver display (CDD) can be driven in first-view mode under the control of the host system and can provide a wide-view image to the driver (DR) and passenger (PA) in the first direction X.

[0074] When the driver (DR) is driving the vehicle, the passenger display (CDD) can be driven in a second-view mode under the control of the host system. It can provide a narrow-view image in the first direction (X) to the passenger (PA) that limits the view to a cutoff angle, or it can not provide an image to the driver (DR) to avoid interfering with driving.

[0075] The display device 1000 according to the embodiment can be applied not only to the co-pilot display (CDD), but also to various display devices that require selective viewing angle control to protect privacy and information, such as mobile displays, IT displays and television displays.

[0076] Figure 6 is an equivalent circuit diagram showing an example of a sub-pixel configuration according to an embodiment of the present disclosure, and Figure 7 is a schematic diagram showing an example of a driving waveform of a sub-pixel according to an embodiment of the present disclosure.

[0077] Referring to FIG6, a sub-pixel SP may include a first light-emitting element EL1 and a second light-emitting element EL2, and a pixel circuit 10 that drives the first light-emitting element EL1 and the second light-emitting element EL2 respectively. In one embodiment, the pixel circuit 10 may include a driving transistor DT, a plurality of switching transistors (first switching transistor T1 to eighth switching transistor T8) and a storage capacitor Cst, but this disclosure is not limited thereto.

[0078] The pixel circuit 10 can receive the first scan signal SCAN1 from the first scan driver 210 through the first gate line 12, and can receive the second scan signal SCAN2 from the second scan driver 212 through the second gate line 14.

[0079] The pixel circuit 10 can receive the light emission control signal EM from the first light emission control driver 220 through the third gate line 16.

[0080] In one embodiment, the pixel circuit 10 can receive a first mode signal SH from the mode control unit 230 through the fourth gate line 42, and can receive a second mode signal PR through the fifth gate line 44.

[0081] In one embodiment, the pixel circuit 10 can receive a first mode signal SH from the second light emission control driver 220 through the fourth gate line 42, and can receive a second mode signal PR through the fifth gate line 44.

[0082] The pixel circuit 10 can receive data signal Vdata from the data driver via data line 22. The pixel circuit 10 can receive high-potential power supply voltage ELVDD from the self-power management circuit via the first power supply line 32, receive low-potential power supply voltage ELVSS via the second power supply line 34 and the common electrode CE, and receive reference voltage Vref via reference line 24.

[0083] In embodiments, the second light-emitting element EL2 may comprise a plurality of light-emitting elements. For example, the second light-emitting element EL2 may comprise light-emitting element 2-1 and light-emitting element 2-2. In this case, light-emitting element 2-1 and light-emitting element 2-2 may be connected in parallel. According to one embodiment, the anodes of light-emitting element 2-1 and light-emitting element 2-2 may be formed together or shared, but this disclosure is not limited thereto. According to embodiments, the second light-emitting element EL2 may comprise three or more light-emitting elements.

[0084] Referring to Figure 7, for each of the Nth frame period and the (N+1)th frame period, the sub-pixel SP can be driven to include an initialization period t1, a sampling and writing period t2, and an emission period t3. For ease of description, in Figure 7, the frame period N represents any frame period of the first view mode, and the (N+1)th frame period N+1 represents any frame period of the second view mode.

[0085] Each of the driving transistor DT and the plurality of switching transistors (first switching transistor T1 to eighth switching transistor T8) in the pixel circuit 10 includes a gate electrode, a source electrode, and a drain electrode. Since the source electrode and drain electrode are not fixed and can change depending on the direction of the voltage and current applied to the gate electrode, one of the source electrode and drain electrode can be represented as a first electrode, and the other can be represented as a second electrode. The driving transistor DT and the plurality of switching transistors (first switching transistor T1 to eighth switching transistor T8) in the pixel circuit 10 can use at least one of polycrystalline silicon semiconductor, amorphous silicon semiconductor, and oxide semiconductor, and can use P-type or N-type, and can use a combination of P-type and N-type.

[0086] The first light-emitting element EL1 and the second light-emitting element EL2 may include anode electrodes AE1 and AE2 respectively connected to the eighth switching transistor T8 and the sixth switching transistor T6, a cathode electrode CE receiving a low-potential power supply voltage ELVSS from the second power line 34, and a light-emitting layer disposed between the anode electrodes AE1 and AE2 and the cathode electrode CE. In the first light-emitting element EL1 and the second light-emitting element EL2, when the driving transistor DT provides a driving current through the eighth switching transistor T8 and the sixth switching transistor T6, electrons can be injected from the cathode electrode CE into the light-emitting layer, and holes can be injected from the anode electrodes AE1 and AE2 into the light-emitting layer, thereby emitting light. The brightness of the emitted light is proportional to the value of the driving current that causes the electrons and holes to recombine in the light-emitting layer, causing the fluorescent or phosphorescent material to emit light.

[0087] The gate electrode of the driving transistor DT can be connected to the storage capacitor Cst, the first electrode can be connected to the first power line 32 providing the high-potential power supply voltage ELVDD, and the second electrode can be connected to the first electrode of the fourth switching transistor T4. The driving transistor DT can be connected to the first electrodes of the sixth switching transistor T6 and the eighth switching transistor T8 through the fourth switching transistor T4. The driving transistor DT can drive the first light-emitting element EL1 through the fourth switching transistor T4 and the eighth switching transistor T8, or drive the second light-emitting element EL2 through the fourth switching transistor T4 and the sixth switching transistor T6. By controlling the current according to the driving voltage charged into the storage capacitor Cst, the driving transistor DT can control the light intensity of the first light-emitting element EL1 through the fourth switching transistor T4 and the eighth switching transistor T8, or control the light intensity of the second light-emitting element EL2 through the fourth switching transistor T4 and the sixth switching transistor T6.

[0088] The storage capacitor Cst can be connected between the second electrode of the first switching transistor T1 and the gate electrode of the driving transistor DT, so as to be charged with a driving voltage corresponding to the data voltage Vdata. The storage capacitor Cst can maintain the charging driving voltage during the light emission cycle t3 in which the first switching transistor T1 is turned off, and provide a driving voltage to the driving transistor DT.

[0089] The first switching transistor T1 can be turned on or off in response to the first scan signal SCAN1 of the first gate line 12 located on the i-th (i is a natural number) pixel column line. During the sampling and writing cycle t2 of the first scan signal SCAN1 with a gate on voltage VON, the first switching transistor T1 can provide the data voltage Vdata supplied through the data line 22 to the first electrode of the storage capacitor Cst. During the initialization cycle T1 and the emission cycle t3 of the first scan signal SCAN1 with a gate off voltage VOFF, the switching transistor T1 can be turned off.

[0090] The second scan signal SCAN2 provided to the second gate line 14 of the i-th pixel column line can turn the second switching transistor T2, the fifth switching transistor T5, and the seventh switching transistor T7 on or off. During the initialization period t1 of the second scan signal SCAN2 with the gate on voltage VON and the sampling and writing period T2, the second switching transistor T2, the fifth switching transistor T5, and the seventh switching transistor T7 can be turned on, and during the emission period t3 of the second scan signal SCAN2 with the gate off voltage VOFF, the second switching transistor T2, the fifth switching transistor T5, and the seventh switching transistor T7 can be turned off.

[0091] In response to the second scan signal SCAN2, the second switching transistor T2 can connect the gate electrode of the driving transistor DT to the second electrode in a diode structure during the initialization cycle t1 and the sampling and writing cycle t2. The second switching transistor T2 can charge the storage capacitor Cst by compensating for the threshold voltage Vth of the driving transistor DT. Therefore, the storage capacitor Cst can compensate for the data voltage charging of the threshold voltage Vth of the driving transistor DT.

[0092] In response to the second scan signal SCAN2, the fifth switching transistor T5 can provide the reference voltage Vref provided through 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.

[0093] In response to the second scan signal SCAN2, the seventh switching transistor T7 can provide the reference voltage Vref provided through the reference line 24 to the anode electrode AE1 of the first light-emitting element EL1 during the initialization period t1 and the sampling and writing period t2.

[0094] The third transistor T3 and the fourth transistor T4 can be turned on or off in response to the light emission control signal EM provided to the third gate line 16 of the i-th pixel column line. The third transistor T3 and the fourth transistor T4 can be turned on during the initialization period t1 in which the light emission control signal EM has an on-state voltage VON and the light emission period t3. The third transistor T3 and the fourth transistor T4 can be turned off during the sampling and writing period t2 in which the light emission control signal EM has a gate on-state voltage VOFF, and for a period of time between the sampling and writing period t2 and the light emission period t3.

[0095] In response to the light emission control signal EM, the third switching transistor T3 can provide the reference voltage Vref supplied through the reference line 24 to the first electrode of the storage capacitor Cst during the initialization period t1 and the light emission period t3.

[0096] In response to the light emission control signal EM, the fourth switching transistor T4 can connect the driving transistor DT to the sixth switching transistor T6 and the eighth switching transistor T8 during the initialization period t1 and the light emission period t3.

[0097] The eighth switching transistor T8 can be turned on or off in response to the first mode signal SH provided to the fourth gate line 42 of the i-th pixel column line. The eighth switching transistor T8 can be turned on during the N-th frame of the driving cycle of the first viewing mode in which the first mode signal SH has a gate on-voltage VON, and can be turned off during the N+1-th frame of the driving cycle of the second viewing mode in which the first mode signal SH has a gate on-voltage VOFF.

[0098] In response to the first mode signal SH, the eighth switching transistor T8 can connect the fourth switching transistor T4 to the first light-emitting element EL1 during the Nth frame of the driving cycle of the first view mode.

[0099] During the emission period t3 of the Nth frame in the first viewpoint mode, the driving transistor DT can drive the first light-emitting element EL1 through the fourth switching transistor T4 and the eighth switching transistor T8. Therefore, the sub-pixel SP can provide light with the first viewpoint through the first light-emitting element EL1 and the first light control element (see the first light control element L1 in FIG4A).

[0100] The sixth switching transistor T6 can be turned on or off in response to the second mode signal PR provided to the fifth gate line 44 located on the i-th pixel column line. The sixth switching transistor T6 can be turned on during the N+1 frame of the drive cycle of the second viewing mode in which the second mode signal PR has a gate on voltage VON; and the sixth switching transistor T6 can be turned off during the N-frame of the drive cycle of the first viewing mode in which the second mode signal PR has a gate off voltage VOFF.

[0101] In response to the second mode signal PR, the sixth switching transistor T6 can connect the fourth switching transistor T4 to the second light-emitting element EL2 during the N+1th frame of the second view mode driving cycle.

[0102] During the emission period t3 of the N+1th frame of the second-view mode driving cycle, the driving transistor DT can drive the second light-emitting element EL2 through the fourth switching transistor T4 and the sixth switching transistor T6. Therefore, the sub-pixel SP can provide light for the second view through the second light-emitting element EL2 and the second light control element L2 (Figure 4B).

[0103] Figure 8 is an enlarged planar schematic diagram showing an example of a region A structure in a display panel according to the embodiment shown in Figure 1. Figure 9 is a planar schematic diagram showing an example of a region A structure shown in Figure 8 containing a black matrix. Figure 10 is an enlarged planar schematic diagram showing an example of a pixel region structure between multiple regions A shown in Figure 8. Figure 11 is a planar schematic diagram showing an example of a pixel region structure containing a black matrix shown in Figure 10.

[0104] As shown in Figures 8 to 11, region A is an enlarged schematic diagram of multiple pixel regions on display panel 100 according to the embodiment shown in the figures. Region A of display panel 100 according to the embodiment may have a structure of pixel array, touch sensor array, and at least partially overlapping light control array. The pixel array may include multiple sub-pixels (first type sub-pixels SP1, second type sub-pixels SP2, and third type sub-pixels SP3) having multiple light-emitting elements (first light-emitting elements EL1: EL11, EL21, EL31 and second light-emitting elements EL2: EL12, EL22, EL32). The touch sensor array may include a plurality of sensor electrodes SE, bridge electrodes BE, dummy electrodes DSE, and black matrix BM. The light control array may include multiple light control elements (first light control elements L1: L11, L21, L31 and second light control elements L2: L12, L22, L32).

[0105] The pixel array may include a 2n-1th column line R2n-1 (n is a natural number) and a 2nth column line R2n, the 2nth column line R2n includes multiple sub-pixels SP1, SP2 and SP3 arranged in the first direction X, and a 2m-1th row line C2m-1 (m is a natural number) and a 2mth row line C2m, the 2mth row line C2m includes multiple sub-pixels SP1, SP2 and SP3 arranged in the second direction Y.

[0106] The 2m-1th row line C2m-1 may contain multiple first-class sub-pixels SP1 arranged in the second direction Y, and the 2mth row line C2m may contain multiple second-class sub-pixels SP2 and third-class sub-pixels SP3 arranged alternately in the second direction Y.

[0107] Each of the (2n-1)th row line R2n-1 and the 2nth row line R2n may contain a plurality of first-class sub-pixels SP1, second-class sub-pixels SP2 and third-class sub-pixels SP3, wherein the first-class sub-pixels SP1, second-class sub-pixels SP2 and third-class sub-pixels SP3 are alternately arranged on the first direction X.

[0108] Each pixel PX may include a first type of sub-pixel SP1 emitting a first color of light, a second type of sub-pixel SP2 emitting a second color of light, and a third type of sub-pixel SP3 emitting a third color of light. The first type of sub-pixel SP1 may be arranged adjacent to the second type of sub-pixel SP2 and the third type of sub-pixel SP3 in the first X direction, and the second type of sub-pixel SP2 and the third type of sub-pixel SP3 may be adjacent to each other and parallel to each other in the second Y direction.

[0109] The first type of sub-pixel SP1 may include a first light-emitting element EL11 (or 1-1 light-emitting element), a first light control element L11 (or 1-1 light control element) overlapping with the first light-emitting element EL11, at least one second light-emitting element EL12 (or 1-2 light-emitting elements), and at least one second light control element L12 (or 1-2 light control elements) overlapping with at least one second light-emitting element EL12. Other naming conventions for the light-emitting elements and light control elements shall apply in the same manner. The light-emitting area 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.

[0110] In one embodiment, in the first type of sub-pixel SP1, two second light-emitting elements EL12 can be configured to be separated from each other, and a first light-emitting element EL11 is inserted between them in the second direction Y. The two second light-emitting elements EL12 can have a parallel connection structure in which the anode electrodes are connected to each other.

[0111] The second light-emitting element EL12 and the second light-controlling element L12 of the first sub-pixel SP1 can be arranged adjacently in the second direction Y between the second light-emitting element EL12 and the second light-controlling element L12 of another first type of sub-pixel SP1.

[0112] In another embodiment, a plurality of second light control elements L12 may be disposed on a second light-emitting element EL12 in the first type of sub-pixel SP1. A light-emitting layer may typically be disposed under the plurality of second light control elements L12 shown in FIG10. However, in this case, the light-emitting layer of the second light-emitting element EL12 may not be disposed under the area corresponding to the first light-emitting element EL11, and a separate light-emitting layer dedicated to the first light-emitting element EL11 may be disposed.

[0113] The first type of sub-pixel SP1 can be a red sub-pixel with a first light-emitting element EL11 and a second light-emitting element EL12 that emit red light.

[0114] The second type of sub-pixel SP2 may include a first light-emitting element EL21 (or 2-1 light-emitting element), a first light control element L21 (or 2-1 light control element) overlapping with the first light-emitting element EL21, at least one second light-emitting element EL22 (or 2-2 light-emitting element), and at least one second light control element L22 overlapping with at least one second light-emitting element EL22 (or 2-2 light control element).

[0115] In the second type of sub-pixel SP2, two second light-emitting elements EL22 can be arranged in parallel in the first direction X, and the first light-emitting element EL21 and the two second light-emitting elements EL22 can be separated from each other in the second direction Y. The two second light-emitting elements EL22 can have a parallel connection structure in which the anode electrodes are connected to each other.

[0116] In the second type of sub-pixel SP2, two second light control elements L22 can be arranged parallel to each other along the first direction X, and the first light control element L21 and the two second light control elements L22 can be respectively arranged in the second direction Y.

[0117] The second type of sub-pixel SP2 can be a green sub-pixel with a first light-emitting element EL21 and a second light-emitting element EL22 that emit green light.

[0118] In the third type of sub-pixel SP3, two second light-emitting elements EL32 (or 3-2 light-emitting elements) can be arranged in parallel in the first direction X, and the first light-emitting element EL31 (or 3-1 light-emitting element) and the two second light-emitting elements EL32 can be separated from each other in the second direction Y. The two second light-emitting elements EL32 can have a parallel connection structure in which the anode electrodes are connected to each other.

[0119] In the third type of sub-pixel SP3, two second light control elements L32 (or 3-2 light control elements) can be arranged parallel to each other along the first direction X, and the first light control element L31 (or 3-1 light control element) and the two second light control elements L32 can be arranged respectively along the second direction Y.

[0120] The second light-emitting element EL22 of the second sub-pixel SP2 and the second light control element L22, and the second light-emitting element EL32 of the third sub-pixel SP3 and the second light control element L32 are disposed adjacent to each other in the second direction Y. The first light-emitting element EL31 of the third sub-pixel SP3 and the first light control element L31 of the second sub-pixel SP2 and the first light-emitting element EL21 of the second sub-pixel SP2 are disposed adjacent to each other in the second direction Y.

[0121] The third type of subpixel SP3 can be a blue subpixel with a first element EL31 that emits blue light and a second light-emitting element EL32.

[0122] According to an embodiment, the color of the light emitted by each of the first type of sub-pixel SP1, the second type of sub-pixel SP2, and the third type of sub-pixel SP3 can be a different color than the aforementioned colors. Furthermore, in some cases, the arrangement of the first light control elements L1: L11, L21, L31 and the second light control elements L2: L12, L22, L32 in the first type of sub-pixel SP1 and the second type of sub-pixel SP2 can also differ from the arrangement of the light-emitting elements.

[0123] The dimensions of the first light-emitting elements EL1 (EL11, EL21, EL31) can be larger than the dimensions of the second light-emitting elements EL2 (EL12, EL22, EL32). The dimensions of the second light-emitting elements EL2 can be smaller than the size of the light-emitting area of ​​the first light-emitting element EL1, and multiple light-emitting areas of the first light-emitting elements EL1 are interspersed therebetween, separating multiple light-emitting areas in the second direction Y. The dimensions of the light incident surfaces of the first light control elements L1 (L11, L21, L31) can be set to be larger than the dimensions of the first light-emitting elements EL1 (EL11, EL21, EL31) (the size of the light-emitting area), thereby improving luminous efficiency. The dimensions of the light incident surfaces of the second light control elements L2 (L12, L22, L32) can be set to be larger than the dimensions of the second light-emitting elements EL2 (EL12, EL22, EL32) (the size of the light-emitting area). The dimensions of the light incident surface of the first light control element L1 can be larger than the dimensions of the light incident surface of the second light control element L2. The light control elements can have light incident surface dimensions that are proportional to the dimensions of the light-emitting surfaces of the corresponding light-emitting elements.

[0124] In one embodiment, the sizes of the first light-emitting elements EL11, EL21, and EL31 can be different for various colors to compensate for the deviations in luminous efficiency of the first light-emitting elements EL11, EL21, and EL31 for various colors. In one embodiment, the sizes of the first light-emitting element EL11 and the first light control element L11 of the first sub-pixel SP1 can be the smallest, and the sizes of the first light-emitting element EL21 and the first light control element L21 of the second sub-pixel SP2 can be less than or equal to the sizes of the first light-emitting element EL31 and the first light control element L31 of the third sub-pixel SP3.

[0125] In one embodiment, the sizes of the second light-emitting elements EL12, EL22, and EL32 can be different for various colors, or the number of light-emitting areas of the same size can be different for various colors to compensate for the differences in luminous efficiency of the second light-emitting elements EL12, EL22, and EL32 for various colors. In one embodiment, the size (number) of the second light-emitting element EL12 and the second light control element L12 of the first sub-pixel SP1 can be the smallest, and the size (number) of the second light-emitting element EL22 and the second light control element L22 of the second sub-pixel SP2 can be less than or equal to the size (number) of the second light-emitting element EL32 and the second light control element L32 of the third sub-pixel SP3.

[0126] A touch sensor array may include a plurality of sensor electrodes SE, a plurality of dummy electrodes DSE, and a plurality of bridge electrodes BE configured to overlap with the non-light-emitting areas of the pixel array. The sensor electrodes SE and the dummy electrodes DSE may be disposed on the same layer and separated from each other. The bridge electrodes BE may be disposed on different layers to overlap with both the sensor electrodes SE and the dummy electrodes DSE, and the multiple sensor electrodes SE may be electrically connected through contact portions CNT.

[0127] In one embodiment, a plurality of sensor electrodes SE can be disposed along the 2m-1th row line C2m-1 in the non-light-emitting area of ​​the first type of sub-pixel SP1. The plurality of sensor electrodes SE, in which the first light-emitting element EL11 of the first type of sub-pixel SP1 is inserted, can be separated in the second direction Y.

[0128] Each of the plurality of sensor electrodes SE may include a first sensor electrode component SE1 disposed adjacent to a non-light-emitting region surrounding a second light-emitting element EL12 of a first type sub-pixel SP1 in the second direction Y, and a second sensor electrode component SE2 disposed in a non-light-emitting region surrounding a second light-emitting element EL22 of another second type sub-pixel SP2. Each of the plurality of sensor electrodes SE may also include a third sensor electrode component SE3 connecting the first sensor electrode component SE1 to the second sensor electrode component SE2 along the second direction Y.

[0129] In each of the first sensor electrode component SE1 and the second sensor electrode component SE2, the first component surrounding the second light-emitting element EL12 may have a relatively large area, the second component of the contact portion overlapping with either of the contact portions CNT may have a smaller area than the first component, and the third sensor electrode component SE3 may have the smallest area. The first sensor electrode component SE1 and the second sensor electrode component SE2 may have a structure symmetrical about the third sensor electrode component SE3 in the second Y direction.

[0130] Each of the first sensor electrode component SE1 and the second sensor electrode component SE2 can be electrically connected to the bridge electrode BE via a contact portion CNT adjacent to the third sensor electrode component SE3 in the second direction Y. The two contact portions CNT can be disposed parallel in the second direction Y between the second light-emitting elements EL12 of the adjacent first type sub-pixels SP1 in the second direction Y. The third sensor electrode component SE3 can be disposed between the two contact portions CNT.

[0131] The first sensor electrode component SE1 and the second sensor electrode component SE2 can be respectively connected to the third sensor electrode component SE3, thereby arranging the first sensor electrode component SE1, the second sensor electrode component SE2, and the third sensor electrode component SE3 according to an integrated pattern. For example, the first sensor electrode component SE1, the second sensor electrode component SE2, and the third sensor electrode component SE3 forming the integrated pattern can be disposed above the first sub-pixel SP1 located on the 2nth column line R2n and the first sub-pixel SP1 located on the 2n+1th column line R2n+1. More specifically, the first sensor electrode component SE1 overlaps with the non-light-emitting region of the first type sub-pixel SP1 located in the 2n+1th column line R2n+1, the second sensor electrode component SE2 overlaps with the non-light-emitting region of the first type sub-pixel SP1 located in the 2nth column line R2n, and the third sensor electrode component SE3 overlaps with the non-light-emitting region between the first type sub-pixel SP1 located in the 2nth column line R2n and the first type sub-pixel SP1 located in the 2n+1th column line R2n+1. Furthermore, the third sensor electrode component SE3 can be integrated with the first sensor electrode component SE1 and the second sensor electrode component SE2.

[0132] The first sensor electrode component SE1 and the second sensor electrode component SE2 may each include an opening OH1 that overlaps with the light-emitting areas of the second light-emitting element EL12 and the second light control element L12. The size of the opening OH1 of each of the first sensor electrode component SE1 and the second sensor electrode component SE2 may be larger than the size of the light-emitting area of ​​the second light-emitting element EL12 and smaller than the size of the light-incident surface of the second light control element L12. The ends of the first sensor electrode component SE1 and the second sensor electrode component SE2, which overlap with the second light control element L12, and the second light control element L12, can limit the radiation angle of the light emitted by the second light control element EL12 to within the cutoff angles in the first direction X and the second direction Y, and block light leakage.

[0133] The first light-emitting element EL11 of the first sub-pixel SP1 inserted between the ends of the first sensor electrode component SE1 and the second sensor electrode component SE2 in the second direction Y overlaps with the non-overlapping first light control element EL11, thereby limiting the radiation angle of light from the first light-emitting element EL11 and the first light control element L11 to a cutoff angle in the second direction Y and blocking light leakage.

[0134] In one embodiment, each of the plurality of bridging electrodes BE may pass through the non-light-emitting regions of the first type of sub-pixel SP1, the second type of sub-pixel SP2, and the third type of sub-pixel SP3 and may be disposed along the second direction Y.

[0135] The bridge electrode BE may include a first bridge electrode component BE1 and a second bridge electrode component BE2 extending along the second direction Y or along the 2m-1th line C2m-1, and a third bridge electrode component BE3 connecting the first bridge electrode component BE1 to the second bridge electrode component BE2.

[0136] The first bridge electrode component BE1 and the second bridge electrode component BE2 may overlap with the first sensor electrode SE surrounding the second light-emitting element EL12 of the first sub-pixel SP1, and with the dummy electrode DSE surrounding the second light-emitting element EL22 of the second sub-pixel SP2 and the second light-emitting element EL32 of the third sub-pixel SP3. Furthermore, the first bridge electrode component BE1 and the second bridge electrode component BE2 may be symmetrical in the first direction X. The third bridge electrode component BE3 may be electrically connected to the first sensor electrode component SE1 and the second sensor electrode component SE2 through the contact portion CNT.

[0137] The first bridge electrode component BE1 and the second bridge electrode component BE2, extending from both sides of the second m-1 line C2m-1 along the second m-1 line C2m-1, can have a pattern shape in which the mutual spacing in the first direction X changes along the second direction Y.

[0138] In one embodiment, within the non-light-emitting region where the dummy electrode DSE overlaps with the first light control element L11 of the first type of sub-pixel SP1 in the first direction X, the first bridge electrode component BE1 and the second bridge electrode component BE2 can have a maximum mutual spacing in the first direction X.

[0139] In one embodiment, within the non-light-emitting region (i.e., the region connected to the third bridge electrode BE3) where the plurality of contact portions CNTs overlap with the first light control elements L21 and L31 of the second type sub-pixel SP2 and the third type sub-pixel SP3 and the sensor electrode portion, the first bridge electrode component BE1 and the second bridge electrode component BE2 may have a minimum mutual spacing in the first direction X.

[0140] In one embodiment, the first bridge electrode component BE1 and the second bridge electrode component BE2 may have a diagonal pattern shape or a tilted pattern shape through which the dummy electrode DSE and the sensor electrode SE overlap each other between the largest mutual spacing component and the smallest mutual spacing component.

[0141] A plurality of dummy electrodes (DSEs) can be disposed in the non-light-emitting area of ​​the 2m row line C2m. The dummy electrodes (DSEs) can be disposed in the non-light-emitting areas of the second type sub-pixel SP2 and the third type sub-pixel SP3. These dummy electrodes (DSEs) can include a first dummy electrode (DSE1) and a second dummy electrode (DSE2). The first dummy electrode (DSE1) is disposed in the non-light-emitting area surrounded by the second light-emitting element EL22 of the second type sub-pixel SP2 and the second light-emitting element EL32 of the third type sub-pixel SP3, which are adjacent in the second direction Y. The second dummy electrode (DSE2) is disposed in the non-light-emitting area surrounded by the first light-emitting element EL21 of the second type sub-pixel SP2 and the first light-emitting element EL31 of the third type sub-pixel SP3, which are adjacent in the second direction Y. The first dummy electrode (DSE1) can have a larger area than the second dummy electrode (DSE2).

[0142] The first dummy electrode DSE1 and the second dummy electrode DSE2 can be electrically floating electrodes that are not electrically connected to other electrodes. The floating first dummy electrode DSE1 and the second dummy electrode DSE2 can reduce the parasitic capacitance formed between the common cathode electrode of the touch sensor array and the pixel array, thereby reducing the distortion of the touch driving signal and the touch sensing signal, and thus improving the sensing performance.

[0143] The first dummy electrode DSE1 may include an opening OH2 that overlaps with the light-emitting areas of the second light-emitting elements EL22 and EL32 and with the second light control elements L22 and L32. The size of the opening OH2 of the first dummy electrode DSE1 may be larger than the size of the light-emitting areas of the second light-emitting elements EL22 and EL32 but smaller than the size of the light-incident surfaces of the second light control elements L22 and L32. The end of the first dummy electrode DSE1 overlapping with the second light control elements L22 and L32, as well as the second light control elements L22 and L32, can limit the propagation direction of the light emitted by the second light control elements EL22 and EL32 within a cutoff angle and prevent light leakage.

[0144] The pattern shape of the first dummy electrode DSE1 includes a portion having the maximum length in the first direction X of the non-light-emitting region adjacent to the sensor electrode SE, and a portion having the minimum length in the first direction X of the non-light-emitting region between the first sub-pixel SP1 and the first light control element L11 adjacent in the first direction X.

[0145] The first light control elements L21 and L31, which do not overlap with the first light-emitting elements EL21 and EL31, overlap with the two ends of the first dummy electrode DSE1 and the second dummy electrode DSE2 in the second direction Y. This can limit the light emission direction from the first light-emitting elements EL21 and EL31 and the first light control elements L21 and L31 to a cutoff angle and prevent light leakage.

[0146] The pattern shape of the second dummy electrode DSE2 includes a portion of the non-light-emitting region adjacent to the first light control element L31 of the third type sub-pixel SP3 in the second direction Y having a maximum length in the first direction X, and a portion of the non-light-emitting region adjacent to the first light control element L21 of the second type sub-pixel SP2 in the second direction Y having a minimum length in the first direction X.

[0147] As shown in Figures 9 and 11, the touch sensor array may further include a black matrix BM disposed in the non-light-emitting area of ​​the pixel array.

[0148] The black matrix BM may include a first opening portion BH1 overlapping with the first light-emitting elements EL1: EL11, EL21, EL31, and a second opening portion BH2 overlapping with the second light-emitting elements EL2: EL12, EL22, EL32. The size of the first opening portion BH1 of the black matrix BM may be larger than the size of the light-emitting area of ​​the second light-emitting elements EL2: EL12, EL22, EL32, and may be smaller than or larger than the size of the light incident surface of the second light control element L2: L12, L22, L32. The size of the second opening portion BH2 of the black matrix BM may be larger than the size of the light-emitting area of ​​the first light-emitting elements EL1: EL11, EL21, EL31, and may be smaller than or larger than the size of the light incident surface of the first light-emitting elements L1: L11, L21, L31.

[0149] In one embodiment, for each sub-pixel, the size of the first opening portion BH1 of the black matrix BM can be proportionally different from the size of the light-emitting areas of the first light-emitting elements EL11, EL21, and EL31 and the size of the first light control elements L11, L21, and L31. In another embodiment, for each sub-pixel, the size of the second opening portion BH2 of the black matrix BM can be proportionally different from the size of the light-emitting areas of the second light-emitting elements EL12, EL22, and EL32, and also proportionally different from the size of the second light control elements L12, L22, and L32.

[0150] The ends of the black matrix BM adjacent to or overlapping with the first light control elements L1: L11, L21, L31, and any of the sensor electrodes SE and dummy electrodes DSE can limit the light radiation angle emitted by the first light-emitting elements EL1: EL11, L21, L31 and the first light control elements L1: L11, L21, L31 within the cutoff angle of the second direction Y and prevent light leakage. The ends of the black matrix BM adjacent to or overlapping with the second light control elements L2: L12, L22, L32, and any of the sensor electrodes SE and dummy electrodes DSE can limit the radiation angle of the light emitted by the second light-emitting elements EL2: EL12, EL22, EL32 and the second light control elements L2: L12, L22, L32 together within the cutoff angles of the first direction X and the second direction Y and can block light leakage and reflected light, thereby preventing light leakage.

[0151] The sensor electrodes SE, dummy electrodes DSE, bridge electrodes BE, and black matrix BM of the touch sensor array can be placed in the non-light-emitting area to act as a barrier to block light.

[0152] In one embodiment, the ends of the sensor electrode SE and the dummy electrode DSE do not overlap with a portion of the first light control elements L1: L11, L21, L31 that are parallel and adjacent to the first light-emitting elements EL1: EL11, EL21, EL31 in the first direction X. Therefore, the ends of the sensor electrode SE and the dummy electrode DSE do not limit the light radiation angle emitted by the first light-emitting elements EL1: EL11, EL21, and EL31, thereby ensuring wide viewing angle characteristics for the first light control elements L1: L11, L21, and L31. A first overlapping portion in which the end of either the sensor electrode SE or the 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 area of ​​the first light-emitting element EL1 in the second direction Y. A second overlapping portion in which the end of the black matrix BM overlaps with the end of the first light control element L1 in the second direction Y is separated from the end of the light-emitting area of ​​the first light-emitting element EL1 in the second direction Y. The area of ​​the first overlapping portion can be larger or smaller than the area of ​​the second overlapping portion. The length of the first overlapping portion in the first direction X can be greater than the length of the first light-emitting element EL1 in the first direction X. The third overlapping portion, where the end of either the sensor electrode SE or the dummy electrode DSE overlaps with the end of the second light control element L2, can be separated from the end of the light-emitting area of ​​the first light-emitting element EL. The fourth overlapping portion, where the end of the black matrix BM overlaps with the end of the second light control element L2, can be separated from the end of the light-emitting area of ​​the second light-emitting element EL2. The area of ​​the third overlapping portion can be greater than or less than the area of ​​the fourth overlapping portion.

[0153] By arranging a plurality of contact portions CNTs of the touch sensor array in the non-light-emitting area of ​​the first type of sub-pixel SP1, which has a relatively small light-emitting area, the light-emitting areas of the second type of sub-pixel SP2 and the third type of sub-pixel SP3, as well as the areas of the light control elements L1 and L2, can be sufficiently ensured in the display panel 100 according to the embodiment, thereby improving brightness.

[0154] A plurality of contact portions CNTs can be disposed within the non-light-emitting area between multiple second light-emitting elements EL12 of the first type sub-pixels SP1 that are adjacent to each other in the second direction Y. Any one contact portion CNT can be disposed within the non-light-emitting area between the first light-emitting elements EL21 of the second type sub-pixels SP2 that are adjacent to each other in the first direction X. Any one contact portion CNT can be disposed within the non-light-emitting area between the first light-emitting elements EL31 of the third type sub-pixels SP3 that are adjacent in the first direction X.

[0155] Figure 12 is a cross-sectional schematic diagram showing an example of the sub-pixel region structure obtained along line I-I' in the pixel region shown in Figure 11.

[0156] Referring to FIG12, the display panel 100 according to the embodiment may include: a pixel array 140, which includes a circuit element layer 120 disposed on a substrate 110 and a light-emitting element layer 130 disposed on the circuit element layer 120; an encapsulation layer 150 disposed on the pixel array 140 to seal the light-emitting element layer 130; a touch sensor array 160 disposed on the encapsulation layer 150; and a light control array 170 disposed on the touch sensor array 160. The display panel 100 may further include a polarizing plate POL, an optically transparent adhesive OCA 180, a cover substrate 190, etc. disposed on the light control array 170.

[0157] The cross-sectional structure of the second type sub-pixel SP2 among the first type sub-pixel SP1, the second type sub-pixel SP2, and the third type sub-pixel SP3 in the display panel 100 will be described as an example according to the embodiment shown in FIG12. The first type sub-pixel SP1, the second type sub-pixel SP2, and the third type sub-pixel SP3 may have the same cross-sectional structure.

[0158] Each sub-pixel SP may include a first transistor TFT1 and a second transistor TFT2 of 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-emitting element L1 overlapping with the light-emitting region EA1 on the first light-emitting element EL1, and a second light-emitting element L2 overlapping with the light-emitting region EA2 on the second light-emitting element EL2. The first transistor TFT1 may correspond to the eighth switching transistor T8 shown in FIG6, and the second transistor TFT2 may correspond to the sixth switching transistor T6.

[0159] According to an embodiment, the circuit element layer 120 may include a plurality of insulating layers stacked 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 planarization layer 125.

[0160] The substrate 110 may include an insulating material, such as glass or plastic. The plastic substrate may be formed of a flexible material. For example, the substrate 110 may include at least one organic insulating material selected from acrylic resin, epoxy resin, silicone resin, polyimide resin, and polyamide resin.

[0161] The buffer layer 121 may have a single-layer structure or a multilayer structure containing inorganic insulating materials such as silicon oxide (SiO x), silicon nitride (SiN x), and aluminum oxide (Al 2O 3). The buffer layer 121 prevents impurities such as hydrogen gas from being introduced into the semiconductor layer 221 through the substrate 110.

[0162] A plurality of transistors, including the eighth switching transistor T8 and the sixth switching transistor T6, can be disposed on the buffer layer 121.

[0163] In one embodiment, buffer layer 121 may include multiple buffer layers and an active buffer layer. In this case, the multiple buffer layers may be disposed on substrate 110, and the active buffer layer may be disposed on the multiple buffer layers. A light-blocking layer may be disposed between the multiple buffer layers and the active buffer layer.

[0164] Each of the first transistor TFT1 and the second transistor TFT2 includes a semiconductor layer 221, a gate electrode 223, a source electrode 225, and a drain electrode 227 disposed on a buffer layer 121. A gate insulating layer 122 is disposed between the semiconductor layer 221 and the gate electrode 223. An interlayer insulating layer 123 is disposed between the gate electrode 223 and the source electrode 225 and the drain electrode 227. The source electrode 225 in the first transistor TFT1 and the drain electrode 227 in the second transistor TFT2 can be connected to the source region and drain region of the semiconductor layer 221, respectively, through contact holes penetrating the interlayer insulating layer 123 and the gate insulating layer 122.

[0165] Semiconductor layer 221 may comprise polycrystalline silicon or may comprise an oxide semiconductor material. Semiconductor layer 221 may comprise LTPS. Semiconductor layer 221 may comprise at least one oxide semiconductor material selected from 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 in the figure) may be further disposed below semiconductor layer 221.

[0166] The gate insulating layer 122 may comprise inorganic insulating materials such as silicon oxide (SiO₂x) and silicon nitride (SiN₂x). The gate insulating layer 122 may comprise materials with high dielectric constants. For example, the gate insulating layer 122 may comprise high dielectric constant materials such as hafnium oxide (HfO). The gate insulating layer 122 may have a multilayer structure.

[0167] The gate electrode 223 and the gate line can be disposed on the gate insulating layer 122.

[0168] The interlayer insulating layer 123 may comprise inorganic insulating materials such as silicon oxide (SiO x) and silicon nitride (SiN x). The interlayer insulating layer 123 may have a multilayer structure.

[0169] The source electrode 225, drain electrode 227, data lines and power supply lines can be disposed on the interlayer insulating layer 123.

[0170] Protective layer 124 and planarization layer 125 may be stacked on first transistor TFT1 and second transistor TFT2. Protective layer 124 may contain inorganic insulating materials such as silicon oxide (SiO x) and silicon nitride (SiN x). Planarization layer 125 may contain organic insulating materials different from protective layer 124 and provide a planar surface. Planarization layer 125 may have a bilayer structure.

[0171] The light-emitting element layer 130, which includes the first light-emitting element EL1 and the second light-emitting element EL2, can be disposed on the planarization layer 125.

[0172] Each of the first light-emitting element EL1 and the second light-emitting element 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.

[0173] 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 through a contact hole penetrating 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 through a contact hole penetrating the planarization layer 125 and the protective layer 124.

[0174] The anode electrode 321 may comprise a conductive material with high reflectivity. The anode electrode 321 may comprise metals such as aluminum (Al), silver (Ag), titanium (Ti), and silver-palladium-copper (APC) alloys. The anode electrode 321 may further comprise a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO). 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).

[0175] The light-emitting layer 322 may include an emission material layer (EML) comprising a light-emitting material. The light-emitting material may include organic materials, inorganic materials, or mixed materials. 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).

[0176] The cathode electrode 323 may be a common electrode and may contain a conductive material that transmits light. 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.

[0177] The embankment insulating layer 132 may be located on the anode electrodes 321 of the first light-emitting element EL1 and the second light-emitting element EL2. The anode electrodes 321 of the first light-emitting element EL1 and the second light-emitting element EL2 are separated from each other, and the embankment insulating layer 132 may be located between the anode electrodes 321 of the first light-emitting element EL1 and the anode electrodes 321 of the second light-emitting element EL2. The embankment insulating layer 132 may cover the edge of the anode electrode 321. The embankment insulating layer 132 may contain an organic insulating material. The embankment insulating layer 132 may contain an organic material different from the planarization layer 125, and may have a single-layer structure or a double-layer structure. Spacers may be further disposed on the embankment insulating layer 132.

[0178] The embankment insulating layer 132 may include a plurality of openings through which the anode electrode 321 of the first light-emitting element EL1 and the anode electrode 321 of the second light-emitting element EL2 are exposed to define a plurality of light-emitting regions EA1 and EA2. The light-emitting layers 322 and cathode electrodes 323 of the first light-emitting element EL1 and the second light-emitting element EL2 may be stacked on the anode electrode 321 exposed by the openings of the embankment insulating layer 132.

[0179] An encapsulation layer 150 may be located on a light-emitting element layer 130 containing a first light-emitting element EL1 and a second light-emitting element EL2. The encapsulation layer 150 prevents damage to the first light-emitting element EL1 and the second light-emitting element EL2 due to external moisture and impact. The encapsulation layer 150 may have a multilayer structure. In one embodiment, the encapsulation layer 150 may include, but is not limited to, a first encapsulation layer 152, a second encapsulation layer 154, and a third encapsulation layer 156 stacked sequentially. The first encapsulation layer 152, the second encapsulation layer 154, and the third encapsulation layer 156 may contain insulating materials. The second encapsulation layer 154 may contain materials different from those of the first encapsulation layer 152 and the third encapsulation layer 156. For example, the first encapsulation layer 152 and the third encapsulation layer 156 may be inorganic encapsulation layers containing inorganic insulating materials, while the second encapsulation layer 154 may be an organic encapsulation layer containing organic insulating materials. Therefore, damage to the first light-emitting element EL1 and the second light-emitting element EL2 of the display device from external moisture and impact can be prevented more effectively.

[0180] The touch sensor array 160 may include a first touch insulating layer 162 disposed on the encapsulation layer 150, a bridge electrode BE disposed on the first touch insulating layer 162, a second touch insulating layer 164 covering the bridge electrode BE, a black matrix BM disposed on the second touch insulating layer 164, a third touch insulating layer 166 covering the black matrix BM, a dummy electrode DSE and a sensor electrode SE disposed 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, the black matrix BM, the sensor electrode SE, and the dummy electrode DSE may be disposed in a non-light-emitting area overlapping the embankment insulating layer 132.

[0181] The end of at least one of the sensor electrode SE, dummy electrode DSE, and black matrix BM may overlap with the end of the first light control element L1 and the end of the second light control element L2 in the non-light-emitting area.

[0182] The light control array 170 may include a first light control element L1 and a second light control element L2 disposed on the touch sensor array 160, and a protective layer 172 covering the first light control element L1 and the second light control element L2.

[0183] The first light control element L1 is disposed on the light-emitting area EA1 of the first light-emitting element EL1, and the second light control element L2 is disposed on the light-emitting area EA2 of the second light-emitting element EL2, thereby controlling the path of the light generated in the light-emitting areas EA1 and EA2.

[0184] The first light control element L1 can control the light path generated in the light-emitting area EA1 of the first light-emitting element EL1 to have a wide viewing angle in the first direction X and a narrow viewing angle in the second direction Y. The second light control element L2 can control the light path generated in the light-emitting area EA2 of the second light-emitting element EL22 to have a narrow viewing angle in both the first direction X and the second direction Y.

[0185] The protective layer 172 covering the first light control element L1 and the second light control element L2 may contain an organic insulating material. The refractive index of the protective layer 172 may be less than that of the first light control element L1 and the second light control element L2. Therefore, due to the difference in refractive index, light passing through the first light control element L1 and the second light control element L2 cannot be reflected back to the substrate 110.

[0186] Figure 13 is a cross-sectional schematic diagram illustrating an example of another structure of a sub-pixel region according to an embodiment of the present disclosure.

[0187] Compared to Figure 12, in Figure 13, except that the width of the black matrix BMa is greater than the width of the sensor electrode SEa and the width of the dummy electrode DSE, the other components are the same, so the same components will not be described again.

[0188] As shown in Figures 12 and 13, in the touch sensor array 160, the widths of the black matrix BM and the black matrix BMa can be less than or greater than the width of each of the sensor electrode SE, the sensor electrode SEa, and the dummy electrode DSE. The dimensions of the openings of the black matrix BM and the black matrix BMa can be greater than or equal to the dimensions of the openings of any of the sensor electrodes SE, SEa, and DSE. The overlap areas of the black matrix BM, the black matrix BMa, and the first light control element L1 and the second light control element L2 can be less than or greater than the overlap areas of the sensor electrodes SE, SEa, and DSE with the first light control element L1 and the second light control element L2.

[0189] Figure 14 is an enlarged planar schematic diagram showing a structural example of the contact portion in the pixel region shown in Figure 11, and Figure 15 is a cross-sectional schematic diagram showing a structural example of the contact portion obtained along the cross-sectional line II-II' shown in Figure 14.

[0190] Referring to Figures 14 and 15, in the contact portion CNT, the sensor electrode SE can be electrically connected to the bridge electrode BE that passes through the contact holes CH1, CH2 and CH3 of the second touch insulating layer 164 and the third touch insulating layer 166.

[0191] The bridge electrode BE can be disposed on the first touch insulating layer 162.

[0192] A second touch insulating layer 164 having a first contact hole CH1 exposing the bridge electrode BE can be disposed on a first touch insulating layer 162 on which the bridge electrode BE is disposed.

[0193] A black matrix BM having an opening portion BH3 larger than the first contact hole CH1 can be disposed on the second touch insulating layer 164. The size of the opening portion BH3 of the black matrix BM in the contact portion CNT can be larger than the size of the bridge electrode BE. The width of the opening portion BH3 of the black matrix BM in the second direction Y can be larger than the width of the bridge electrode BE.

[0194] A third touch insulating layer 166 having a second contact hole CH2 and a third contact hole CH3 can be disposed on a second touch insulating layer 164 having a black matrix BM disposed thereon. The size of the third contact hole CH3 can be larger than the size of the second contact hole CH2. The second contact hole CH2 and the third contact hole CH3 of the third touch insulating layer 166 having different sizes can be formed using a halftone masking process.

[0195] The sensor electrode SE is disposed on the third touch insulating layer 166 and can be connected to the bridge electrode BE through contact holes CH1, CH2, and CH3. The sensor electrode SE can be disposed in a gentle step form through contact holes CH1, CH2, and CH3 of different sizes, or even arranged in a gentle step form in the relatively thick third touch insulating layer 166, thereby preventing the sensor electrode SE from disconnecting.

[0196] Figures 16A and 16B are schematic diagrams comparing the light travel paths in the sub-pixel regions of the display panel according to the comparative embodiment and the present disclosure embodiment. Figure 17 is a schematic diagram illustrating the light leakage reduction effect of the display device compared to the comparative embodiment and the present disclosure embodiment.

[0197] Referring to Figure 16A, in the display panel according to the comparative example, the touch sensor array 260 may include a first barrier B1 and a second barrier B2 overlapping the ends of the light control element L2. The first barrier B1 may be a sensor electrode, and the second barrier B2 may be a black matrix. There may be a first spacing of 24 μm between the light-emitting elements EL2 of adjacent sub-pixels. The size of the opening portion of the first barrier B1 overlapping the light control element L2 may be smaller than the size of the opening portion of the second barrier B2 overlapping the light control element L2.

[0198] Referring to Figures 16A and 17, the light 51 emitted from the light-emitting area EA2 of the second light-emitting element EL2 of the display panel according to the comparative example and propagating along the first optical path can be confined within the cutoff angle (±30°) by the first barrier B1, the second barrier B2, and the light control element L1, and the light leakage 52 of the second optical path, which has a relatively small radiation angle, can be blocked by the second barrier B2. However, since the first spacing between the light-emitting elements EL2 of adjacent sub-pixels is less than 24μm, light leakage 53 of the third optical path with a large radiation angle will occur, and reflected light 54 of the fourth optical path reflected by the second barrier B2 and the adjacent light-emitting element EL2 will also occur. This indicates that light leakage occurs at a viewing angle (±65°~80°) greater than the cutoff angle (±30°).

[0199] On the other hand, referring to FIG16B, in the display panel according to the embodiment, the touch sensor array 160 may include a black matrix BM and sensor electrodes SE or dummy electrodes DSE overlapping the ends of the light control element L2. The black matrix BM may contain a black resin material for blocking reflected light, and the spacing between the light-emitting elements EL2 of adjacent sub-pixels may ensure a second spacing, for example, 28 μm larger than the first spacing of 24 μm. The size of the opening portion of the black matrix BM overlapping the light control element L2 may be smaller or larger than the size of the opening portion of the sensor electrodes SE or dummy electrodes DSE overlapping the light control element L2.

[0200] As shown in Figures 16B and 17, according to the embodiment, light 51 emitted from the light-emitting area EA2 of the light-emitting element EL2 in the display panel and traveling along the first optical path can be confined within a cutoff angle (±30°) by the first barrier B1, the second barrier B2, and the light control element L1. Light leakage 52 from the second optical path, which has a larger radiation angle, can be blocked by the sensor electrode SE or the dummy electrode DSE because there is a sufficient second spacing of 28 μm between the light-emitting elements EL2 of adjacent sub-pixels. Light leakage 53 from the third optical path, which also has a larger radiation angle, can be blocked by the black matrix BM. Light propagating along the fourth optical path is reflected by the black matrix BM. This indicates that the leakage light is blocked at viewing angles greater than the cutoff angle (±30°).

[0201] Figures 18 and 19 are schematic cross-sectional views illustrating the sub-pixel structure of a display panel according to an embodiment of the present disclosure.

[0202] As shown in Figures 18 and 19, a sub-pixel according to one embodiment may include a light-emitting element layer 130 containing a first light-emitting element EL1 and a second light-emitting element EL2, an encapsulation layer 150 disposed on the light-emitting element layer 130, a touch sensor array 160 containing a black matrix BM, sensor electrodes SE and dummy electrodes DSE stacked on the encapsulation layer 150, and a light control array 170 containing a first light control element L1 and a second light control element L2 disposed on the touch sensor array 160.

[0203] Referring to Figure 18, to improve luminous efficiency, the second light control element L2 can have a light incident surface larger than the size of the luminous region EA2, thereby allowing the second light control element L2 to overlap with the luminous region EA2 of the second light-emitting element EL2, and also to overlap with the non-luminous region surrounding the luminous region EA2. To prevent light leakage, the size of the opening portion of the black matrix BM disposed in the non-luminous region can be larger or smaller than the size of the light incident surface of the second light control element L2, and the end of the black matrix BM can either not overlap with the end of the second light control element L2, or overlap with it. To prevent light leakage, the size of the opening portion of the sensor electrode SE or dummy electrode DSE disposed in the non-luminous region can be smaller than the size of the light incident surface of the second light control element L2, and the end of the sensor electrode SE or dummy electrode DSE can overlap with the end of the second light control element L2. Therefore, the second light control element L2 can limit the cutoff angle of the light emitted by the second light-emitting element EL2 relative to the first direction X and the second direction Y within a specific value, thereby ensuring a narrow viewing angle characteristic in the second direction Y.

[0204] In the second type of sub-pixel SP2 according to the embodiment (see FIG11), the distance D1 in the first direction X between the end of the sensor electrode SE disposed in the non-light-emitting area and the end of the embankment insulating layer 132 that defines the light-emitting area EA2 of the second light-emitting element EL2 can be set to approximately 16 μm. Therefore, the sensor electrode SE can block light leakage from the second light-emitting element EL2 and ensure that the area of ​​the sensor electrode SE is located in the non-light-emitting area, thereby improving touch sensing sensitivity.

[0205] Referring to Figures 18 and 19, in order to improve luminous efficiency, the size of the light incident surface of the first light control element L1 can be larger than the size of the light-emitting region EA1, thereby overlapping with the light-emitting region EA1 of the first light-emitting element EL1 and the non-light-emitting region surrounding the light-emitting region EA1. To ensure the wide viewing angle characteristics in the first direction X, the first light control element L1 must not overlap with the black matrix BM, the sensor electrode SE, or the dummy electrode DSE in the first direction X and in the non-light-emitting region.

[0206] In one embodiment, the distance D2 between the end of the first light control element L1 and the end of the embankment insulating layer 132 that determines the light-emitting area EA1 of the first light-emitting element EL1 in the first direction X can be set to approximately 15 μm. Therefore, the first light control element L1 can not only block light leakage from the second light-emitting element EL2, but also increase the cutoff angle in the first direction X to ensure a wide viewing angle characteristic in the first direction X.

[0207] Referring to Figure 19, in one embodiment, the length between the two ends of the sensor electrode SE or dummy electrode DSE overlapping the end of the first light control element L1 in the second direction Y in the first direction X can be longer than the length of the light-emitting area of ​​the first light-emitting element EL1 in the first direction. In one embodiment, the distance D3 between the end of the sensor electrode SE or dummy electrode DSE overlapping the end of the first light control element L1 in the second direction Y and the end of the light-emitting area (the end of the embankment insulating layer) in the first direction X can be set to approximately 5 μm. Therefore, diagonal light leakage caused by the light emitted by the first light-emitting element EL1 traveling diagonally can be blocked, and touch sensing sensitivity can be improved in the non-light-emitting area by maximizing the area of ​​the sensor electrode SE or dummy electrode DSE.

[0208] In one embodiment, the distance between the end of the first light control element L1 in the second direction Y and the end of the sensor electrode SE or dummy electrode DSE in the second direction Y can be set to approximately 2 μm in the second direction Y. Therefore, the first light control element L1 can limit the cutoff angle of the light emitted by the first light-emitting element EL1 relative to the second direction Y to a specific value, thereby ensuring narrow viewing angle characteristics in the second direction Y.

[0209] Figure 20 is a schematic diagram illustrating the enhanced viewing angle cutoff ratio of the display device according to an embodiment of the present disclosure.

[0210] Referring to FIG20, in the display device according to the embodiment, when the spacing between the second light-emitting elements emitting light from adjacent sub-pixels in the privacy mode is less than or equal to 26 μm, the red light R and blue light B can be blocked with a cutoff ratio of 0% within the cutoff angle (30 degrees to 60 degrees) in the first direction (X, L / R), while the cutoff ratio for green light G can be 0.6 to 0.7%, indicating that weak light leakage may occur.

[0211] In one embodiment, when the spacing between the light-emitting elements of adjacent sub-pixels in privacy mode is 28 μm or more, it can be seen that red light R, green light G and blue light B can be blocked with a 0% cutoff ratio within the cutoff angle (30 degrees to 60 degrees) in the first direction (X, L / R).

[0212] Figures 21A and 21B are schematic diagrams showing the color difference reduction effect of a display device according to one embodiment compared to a comparative embodiment.

[0213] In the display device according to the comparative examples and embodiments, the first light control element L1 and the second light control element L2 may have a refractive index difference depending on the light wavelength. For example, in the first lens of the first light control element L1 and the second lens of the second light control element L2, the refractive index of blue light B with a center wavelength of 450 nm may be 1.68, the refractive index of green light G with a center wavelength of 550 nm may be 1.65, and the refractive index of red light R with a center wavelength of 650 nm may be 1.63.

[0214] Referring to FIG21A, in the display device according to the comparative example, since the first and second light-emitting elements of the red, green and blue sub-pixels have the same light-emitting area regardless of the color, near the viewing angle cutoff angle (30°), the brightness reduction rate of blue light B is greater than that of red light R, thereby producing a color difference such as yellowish tint.

[0215] On the other hand, referring to FIG21B, in the display device according to the embodiment, the first light-emitting elements (see first light-emitting elements EL11, EL21, EL31 in FIG10) and the second light-emitting elements (see second light-emitting elements EL12, EL22, EL32 in FIG10) of the red, green, and blue sub-pixels can have different light-emitting areas for various colors. In one embodiment, the size of the light-emitting area can increase in the order of red, green, and blue sub-pixels, which is the same as the order of the refractive indices of red / green / blue light R / G / B of the lens (i.e., the first light control element L1 and the second light control element L2). Accordingly, it can be seen that near the cutoff angle of 30°, the brightness reduction rate of blue light B is lower than that of red light R, thereby minimizing color differences such as yellowing, and potentially improving display performance such as display quality.

[0216] Accordingly, the present invention may have the following advantages.

[0217] According to the embodiments disclosed herein, the display device can not only control the viewing angle according to the user's needs by driving the light-emitting elements of each sub-pixel separately, but also appropriately arrange the black matrix, sensor electrodes, and dummy electrodes that act as light barriers in the touch sensor array, thereby overlapping or not overlapping with the light control elements in the non-light-emitting area, so as to ensure narrow viewing angle characteristics or wide viewing angle characteristics according to the viewing angle control, and improve display performance such as brightness and display quality by blocking light leakage caused by leakage light and reflected light.

[0218] According to the embodiments disclosed herein, the display device according to the embodiments can improve touch sensing sensitivity by fixing as many areas as possible of sensor electrodes and dummy electrodes disposed in non-light-emitting areas in the touch sensor array, thereby improving touch sensing performance.

[0219] According to an embodiment of the present invention, the display device according to the embodiment can improve display performance, such as display quality, by distinguishing the size of the light-emitting area for each wavelength and minimizing color differences such as yellow near the cutoff angle of the viewing angle due to the refractive index difference of each wavelength of the light control element.

[0220] According to embodiments of the present invention, the display device according to the embodiments can also achieve low power consumption by improving touch sensing performance and display performance.

[0221] A display device according to certain aspects may include a pixel array, comprising a pixel circuit and a plurality of sub-pixels, the sub-pixels including a first light-emitting element and a second light-emitting element connected to the pixel circuit; an encapsulation layer disposed on the pixel array to seal a light-emitting element layer including the first light-emitting element and the second light-emitting element; a touch sensor array, comprising a black matrix, a sensor electrode and a dummy electrode disposed on the encapsulation layer and overlapping the non-light-emitting area of ​​the pixel array; and a light control array, comprising a first light control element overlapping the first light-emitting element and a second light control element overlapping the second light-emitting element, the light control array being disposed on the touch sensor array; wherein the sensor electrode is disposed in the non-light-emitting area of ​​a first type of sub-pixel between the sub-pixels; and the dummy electrode is disposed in the non-light-emitting area of ​​a second type of sub-pixel and a third type of sub-pixel between the sub-pixels.

[0222] In a display device according to certain aspects, a pixel array may include a first row and a second row adjacent to each other in a first direction, wherein the first row includes a plurality of first-type sub-pixels arranged along a second direction different from the first direction, and the second row includes a plurality of second-type sub-pixels and a plurality of third-type sub-pixels, wherein the second-type sub-pixels and the third-type sub-pixels are arranged alternately along the second direction, the first-type sub-pixels are adjacent to the second-type sub-pixels and the third-type sub-pixels in the first direction, the second-type sub-pixels and the third-type sub-pixels are adjacent to each other in the second direction, and the first-type sub-pixels, the second-type sub-pixels and the third-type sub-pixels emit light of different colors respectively.

[0223] In a display device according to certain aspects, a first type of sub-pixel may include a 1-1 light-emitting element having a 1-1 light-emitting region having a structure that is longer in a first direction than in a second direction; and a plurality of 1-2 light-emitting elements having a size smaller than the 1-1 light-emitting region and a plurality of 1-2 light-emitting regions, the 1-2 light-emitting regions being separated in the second direction and interposed with 1-1 light-emitting elements therebetween, wherein the plurality of 1-2 light-emitting elements are commonly connected to the anode electrode of the pixel circuit of the first type of sub-pixel.

[0224] In a display device according to certain aspects, a second type of sub-pixel may include a 2-1 light-emitting element, having a 2-1 light-emitting region, the 2-1 light-emitting region having a structure that is longer in a first direction than in a second direction, and a plurality of 2-2 light-emitting elements having a size smaller than the 2-1 light-emitting region and a plurality of 2-2 light-emitting regions, the 2-2 light-emitting regions being separated in the second direction and interposed with 2-1 light-emitting elements, wherein the plurality of 2-2 light-emitting elements are arranged in parallel in the first direction, and the plurality of 2-2 light-emitting elements are commonly connected to the anode electrode of the pixel circuit of the second type of sub-pixel.

[0225] In a display device according to certain aspects, a third type of sub-pixel may include a 3-1 light-emitting element having a 3-1 light-emitting region, the 2-1 light-emitting region having a structure that is longer in a first direction than in a second direction; and a plurality of 3-2 light-emitting elements having a size smaller than the 3-1 light-emitting region and a plurality of 3-2 light-emitting regions, the 3-2 light-emitting regions being separated from the 3-1 light-emitting element in the second direction, wherein the plurality of 3-2 light-emitting elements are arranged parallel to each other in the first direction and adjacent to the 2-2 light-emitting elements in the second direction, and the plurality of 2-2 light-emitting elements are commonly connected to the anode electrode of the pixel circuit of the third type of sub-pixel.

[0226] In a display device according to certain aspects, a light control array may include 1-1 light control element, 2-1 light control element and 3-1 light control element overlapping with 1-1 light emission element, 2-1 light emission element and 3-1 light emission element respectively, and a plurality of 1-2 light control elements, a plurality of 2-2 light control elements and a plurality of 3-2 light control elements overlapping with 1-2 light emission element, 2-2 light emission element and 3-2 light emission element respectively, wherein the size of a light incident surface of each of the 1-1 light control element, 2-1 light control element and 3-1 light control element is larger than the size of a light incident surface of each of the 1-2 light control element, 2-2 light control element and 3-2 light control element.

[0227] In a display device according to certain aspects, light-emitting elements 1-1, 2-1, and 3-1 have light-emitting areas of different sizes for various colors; light-emitting elements 1-2, 2-2, and 3-2 have light-emitting areas of different sizes for various colors; the size of the light incident surface of light-controlling elements 1-1, 2-1, and 3-1 is proportional to the size of the light-emitting surface of light-emitting elements 1-1, 2-1, and 3-1; and the size of the light incident surface of light-controlling elements 1-2, 2-2, and 3-2 is proportional to the size of the light-emitting surface of light-emitting elements 1-2, 2-2, and 3-2.

[0228] In a display device according to certain aspects, a touch sensor array may include a plurality of sensor electrodes arranged along a first row, wherein each of the plurality of sensor electrodes is separated from another sensor electrode adjacent to a second direction, and an optical control element is inserted between the two.

[0229] In a display device according to certain aspects, each of a plurality of sensor electrodes may include a first sensor electrode component disposed in a non-light-emitting region of 1-2 light-emitting elements surrounding a first type of sub-pixel, a second sensor electrode component disposed in a non-light-emitting region of 2-2 light-emitting elements of a second type of sub-pixel adjacent to the first type of sub-pixel and symmetrical to the first sensor electrode component in a second direction, and a third sensor electrode component connecting the first sensor electrode component to the second sensor electrode component.

[0230] In a display device according to certain aspects, the touch sensor array may further include a bridge electrode overlapping the sensor electrode, wherein a touch insulating layer is inserted between the two, wherein the bridge electrode is connected to a first sensor electrode component and a second sensor electrode component through a plurality of contact portions, and a third sensor electrode component is disposed in a second direction between the contact portions.

[0231] In a display device according to certain aspects, each of a first sensor electrode component and a second sensor electrode component includes a first component surrounding a second light-emitting element; and a second component overlapping with either of the contact portions and having an area smaller than the first component.

[0232] In a display device according to certain aspects, a first bridge electrode component and a second bridge electrode component extend from both sides of a first row line along the first row line to overlap with a sensor electrode and a dummy electrode, and the first bridge electrode component and the second bridge electrode component are symmetrical in a first direction; and a third bridge electrode component connects the first bridge electrode component to the second bridge electrode component in each of the contact portions.

[0233] In a display device according to certain aspects, a first bridge electrode component and a second bridge electrode component extending along a first row line have a patterned shape, wherein the mutual spacing in the first direction of the patterned shape varies along a second direction.

[0234] In a display device according to certain aspects, a first bridge electrode component and a second bridge electrode component extending along the first row line overlap with a dummy electrode in the first direction with a maximum mutual spacing in the non-light-emitting area adjacent to the 1-1 light control element along the first direction; and overlap with a sensor electrode in the first direction with a minimum mutual spacing in the non-light-emitting area disposed between the contact portion and the 2-1 light-emitting element and the 3-1 light-emitting element.

[0235] In a display device according to certain aspects, the first bridge electrode component and the second bridge electrode component extending along the first row line may have an overlapping inclined pattern shape through the maximum mutual spacing and minimum mutual spacing between the dummy electrode and the sensor electrode.

[0236] In a display device according to certain aspects, each of a plurality of contact portions may include a third bridge electrode component disposed on a first touch insulating layer on an encapsulation layer; a second touch insulating layer disposed on the first touch insulating layer, the third bridge electrode component disposed on the first touch insulating layer and the first touch insulating layer having a first contact hole exposing the third bridge electrode; a black matrix disposed on the second touch insulating layer and having an opening portion larger than the first contact hole; a third touch insulating layer disposed on the second touch insulating layer, the second touch insulating layer having the black matrix and having a second contact hole larger than the first contact hole and smaller than the opening portion, and a third contact hole larger than the opening portion; and a sensor electrode disposed on the third touch insulating layer and connected to the third bridge electrode component through the third contact hole, the second contact hole and the first contact hole.

[0237] In a display device according to certain aspects, a touch sensor array may include a plurality of dummy electrodes disposed in the non-light-emitting area of ​​a second row, the dummy electrodes being separate from and electrically floating from sensor electrodes disposed on the same layer. These dummy electrodes may include a first dummy electrode disposed in the non-light-emitting area surrounding adjacent 2-2 and 3-2 light-emitting elements along a second direction; and a second dummy electrode disposed in the non-light-emitting area between adjacent 3-1 and 2-1 light-emitting elements along the second direction.

[0238] In a display device according to certain aspects, a first dummy electrode has a pattern shape comprising a portion having a maximum length in a first direction in a non-light-emitting region adjacent to a sensor electrode, and a portion having a minimum length in a first direction in a non-light-emitting region between 1-1 light control elements adjacent to the first direction.

[0239] In a display device according to certain aspects, the second dummy electrode may have a patterned shape comprising a portion having the maximum length in the first direction in a non-light-emitting region adjacent to the 3-1 light-emitting element in the second direction, and a portion having the minimum length in the first direction in a non-light-emitting region adjacent to the 2-1 light-emitting element in the second direction.

[0240] In a display device according to certain aspects, a first light control element limits the viewing angle of light emitted from the first light-emitting element and either the sensor electrode or the dummy electrode to a first cutoff angle in a second direction, and a second light control element limits the viewing angle of light emitted from the second light-emitting element along either the sensor electrode or the dummy electrode and the black matrix to a first cutoff angle in both the first and second directions.

[0241] In a display device according to certain aspects, the end of any sensor electrode and the dummy electrode in the first overlapping portion may overlap with the end of the first light control element in the second direction, the first overlapping portion is spaced apart from the end of the light-emitting area of ​​the first light-emitting element in the second direction, wherein the end of the black matrix that may overlap in the second direction is spaced apart from the end of the first light control element in the second direction, and the end of the light-emitting area of ​​the first light-emitting element is spaced apart in the second direction, and the area of ​​the first overlapping portion may be greater than or less than the area of ​​the second overlapping portion.

[0242] In a display device according to certain aspects, a first opening portion of either the sensor electrode or the dummy electrode and a second opening portion of the black matrix may overlap with a first light-emitting element and a first light-controlling element, and the size of the first opening portion may be larger or smaller than the size of the second opening portion.

[0243] In a display device according to certain aspects, the length of the first overlapping portion in a first direction may be greater than the length of the first light-emitting element in a first direction, wherein the end of either the sensor electrode or the dummy electrode in the second direction overlaps with the end of the first light control element in the second direction.

[0244] In a display device according to certain aspects, a third overlapping portion where the end of either the sensor electrode or the dummy electrode overlaps with one end of the second light control element may be separated from one end of the light-emitting region of the first light-emitting element, wherein a fourth overlapping portion where one end of the black matrix overlaps with one end of the second light control element may be separated from the end of the light-emitting region of the second light-emitting element, and the area of ​​the third overlapping portion may be greater than or less than the area of ​​the fourth overlapping portion.

[0245] In a display device according to certain aspects, the third opening portion of either the sensor electrode or the dummy electrode and the fourth opening portion of the black matrix may overlap with the second light-emitting element and the second light control element, and the size of the third opening portion may be larger or smaller than the size of the fourth opening portion.

[0246] In a display device according to certain aspects, each of the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element can be connected to a first switching transistor provided in the pixel circuit of each of the first to third types of sub-pixels and controlled by a first mode signal; each of the 1-2 light-emitting elements, the 2-2 light-emitting elements, and the 3-2 light-emitting elements can be connected to a second switching transistor provided in the pixel circuit of each of the first to third types of sub-pixels and controlled by a second mode signal; and the first and second switching transistors can be electrically connected to a driving transistor provided in the pixel circuit of each of the first to third types of sub-pixels.

[0247] In a display device according to certain aspects, among the first sensor electrode component, the second sensor electrode component, and the third sensor electrode component, the third sensor electrode component may have the smallest area.

[0248] In some display devices, the width of the opening in the second direction of the black matrix can be greater than the width of the bridge electrode.

[0249] In a display device according to certain aspects, at least one of the sensor electrode, the dummy electrode, and the black matrix does not overlap with the end of the first light control element.

[0250] In certain aspects of the display device, the size of the opening portion of the black matrix may be greater than or equal to the size of the opening portion of either the sensor electrode or the dummy electrode.

[0251] In a display device according to certain aspects, a black matrix may include a first opening portion overlapping a first light-emitting element and a second opening portion overlapping a second light-emitting element, wherein the size of the first opening portion of the black matrix is ​​larger than the size of the light-emitting area of ​​the second light-emitting element, and the size of the second opening portion of the black matrix is ​​larger than the size of the light-emitting area of ​​the first light-emitting element.

[0252] In a display device according to certain aspects, the size of the first opening portion of the black matrix may be smaller or larger than the size of the light incident surface of the second light control element, and the size of the second opening portion of the black matrix may be smaller or larger than the size of the light incident surface of the first light control element.

[0253] In certain display devices, the width of the black matrix can be smaller or larger than the width of each of the sensor electrodes and dummy electrodes.

[0254] In some display devices, the spacing between the second light-emitting elements of adjacent sub-pixels can be greater than 24 μm.

[0255] In a display device according to certain aspects, the distance between the end of the first light control element in the second direction and the end of the sensor electrode in the second direction or the dummy electrode in the second direction can be set to 2 μm.

[0256] The foregoing features, structures, and effects of the present invention are included in at least one embodiment of the present invention, but are not limited to only one embodiment. Furthermore, the features, structures, and effects described in at least one embodiment of this disclosure can be implemented by those skilled in the art through combinations or modifications of other embodiments. Therefore, any content related to combinations and modifications should be interpreted as being within the scope of this disclosure.

[0257] For those skilled in the art, various substitutions, modifications, and variations are possible without departing from the scope of this disclosure. Therefore, the scope of this disclosure is defined by the following claim, and all alterations or modifications derived from the meaning, scope, and equivalent concepts of the claims are to be interpreted as encompassing the scope of this disclosure.

[0258] 10: Pixel Circuit 12,16,42,44: Gate lines 22: Data Line 12: First gate line 14: Second gate line 32: First power line 34: Second power supply line 51: Light 52, 53: Light Leakage 54: Reflected light 100: Display panel 110:Substrate 120: Circuit Component Layer 121: Buffer layer 122: Gate insulation layer 123: Interlayer insulation layer 124: Protective layer 125: Planarization Layer 130: Light-emitting element layer 132: Embankment Insulation Layer 140: pixel array 150: Encapsulation layer 152: First encapsulation layer 154: Second encapsulation layer 156: Third encapsulation layer 160: Touch sensor array 162: First Touch Insulation Layer 164: Second Touch Insulation Layer 166: Third Touch Insulation Layer 168: Fourth Touch Insulation Layer 170: Optical Control Array 172: Protective layer 180: Optical transparent adhesive 190: Cover plate 200: Display driver circuit 210: Scan Driver 212: Second Scan Driver 220: Light-emitting control driver 221: Semiconductor layer 223: Gate electrode 225: Source electrode 227: Drain electrode 230: Mode Control Unit 260: Touch sensor array 300: Touch sensing circuit 321: Anode electrode 322: Emissive layer 323: Shared cathode electrode 1000: Display device AE1, AE2: Anode electrodes CE: Common electrode Cluster Cst: Storage capacitor DR: Driver PA: Passenger PX: pixel CID: Central Information Display CDD: Passenger Display CNT: Contact Component CH1, CH2, CH3: Contact holes B1: First Barrier B2: Second Barrier BE: Bridge electrode BE1: First bridge electrode component BE2: Second bridge electrode component BE3: Third Bridge Electrode Component BH1: First opening section BH2: Second opening section BH3: Opening section BM,BMa: Black Matrix DSE: Dummy Electrode DSE1: First dummy electrode DSE2: Second dummy electrode DA: Display area NDA: Non-display area OH1, OH2: Open portions SE, SEa: Sensor electrodes SE1: First sensor electrode component SE2: Second sensor electrode component SE3: Third sensor electrode component SP: Subpixel SP1: First type of sub-pixel SP2: Second type of sub-pixel SP3: Third type of sub-pixel EA1, EA2: Emitting regions EL1, EL11, EL21, EL31, EL2, EL21, EL22, EL32: Light-emitting elements L1, L11, L21, L31, L2, L12, L22, L32: Optical control elements ELVSS: Low Voltage Level ELVDD: High-potential power supply voltage TFT1: First transistor TFT2: Second transistor T1: First switching transistor T2: Second switching transistor T3: Third switching transistor T4: Fourth switching transistor T5: Fifth switching transistor T6: Sixth Switch Transistor T7: Seventh Switch Transistor T8: Eighth switching transistor t1: Initialization cycle t2: Sampling and writing cycle t3: Emission period X: First direction Y: Second direction Z: Third-party direction R2n-1, R2n: column lines D1, D2: Distance Vdata: Data voltage SCAN: Scan signal SCAN1: First scan signal SCAN2: Second scan signal EM: Light emission control signal Vref: Reference voltage SH: First Mode Signal PR: Second Mode Signal VON: Gate turn-on voltage VOFF: Gate turn-off voltage POL: Polarizing plate

Claims

1. A display device comprising: a pixel array including a plurality of sub-pixels, the sub-pixels including a pixel circuit, a first light-emitting element and a second light-emitting element connected to the pixel circuit; an encapsulation layer disposed on the pixel array to seal a light-emitting element layer including the first light-emitting element and the second light-emitting element; a touch sensor array including a black matrix, a sensor electrode and a dummy electrode disposed on the encapsulation layer and overlapping a non-light-emitting region of the pixel array; and a light control array including a first light control element and a second light control element disposed on the touch sensor array overlapping the first light-emitting element and overlapping the second light-emitting element; wherein the sensor electrode is disposed in a non-light-emitting region of a first type of sub-pixel among the sub-pixels, and the dummy electrode is disposed in a non-light-emitting region of a second type of sub-pixel and a third type of sub-pixel among the sub-pixels, wherein the sensor electrode and the dummy electrode do not overlap a light-emitting region.

2. The display device as claimed in claim 1, wherein the pixel array comprises: a first row line and a second row line adjacent to each other in a first direction, wherein the first row line comprises a plurality of first-type sub-pixels arranged along a second direction different from the first direction, wherein each of the first-type sub-pixels is a first-type sub-pixel; the second row line comprises a plurality of second-type sub-pixels and a plurality of third-type sub-pixels, wherein each of the second-type sub-pixels is a second-type sub-pixel and wherein each of the third-type sub-pixels is a third-type sub-pixel; wherein the second-type sub-pixels and the third-type sub-pixels are arranged alternately along the second direction; the first-type sub-pixels are configured to be adjacent to the second-type sub-pixels and the third-type sub-pixels in the first direction; the second-type sub-pixels and the third-type sub-pixels are configured to be adjacent in the second direction; and the first-type sub-pixels, the second-type sub-pixels, and the third-type sub-pixels emit light of different colors.

3. The display device as claimed in claim 2, wherein the first type of sub-pixel comprises: a 1-1 light-emitting element having a 1-1 light-emitting region having a structure that is longer in the first direction than in the second direction; and a plurality of 1-2 light-emitting elements having a size smaller than the 1-1 light-emitting region and a plurality of 1-2 light-emitting regions, the 1-2 light-emitting regions being separated in the second direction and the 1-1 light-emitting element being inserted therebetween, wherein the 1-2 light-emitting elements share an anode electrode of the pixel circuit of the first type of sub-pixel.

4. The display device as claimed in claim 3, wherein the second type of sub-pixel comprises: a 2-1 light-emitting element having a 2-1 light-emitting region having a structure that is longer in the first direction than in the second direction; and a plurality of 2-2 light-emitting elements having a size smaller than the 2-1 light-emitting region and a plurality of 2-2 light-emitting regions, the 2-2 light-emitting regions being separated in the second direction and the 2-1 light-emitting elements being inserted therebetween, wherein the 2-2 light-emitting elements are arranged parallel to each other in the first direction, and wherein the 2-2 light-emitting elements share an anode electrode connected to the pixel circuit of the second type of sub-pixel.

5. The display device as claimed in claim 4, wherein the third type of sub-pixel comprises: a 3-1 light-emitting element having a 3-1 light-emitting region having a structure that is longer in the first direction than in the second direction; and a plurality of 3-2 light-emitting elements having a size smaller than the 3-1 light-emitting region and a plurality of 3-2 light-emitting regions, the 3-2 light-emitting regions being separated from the 3-1 light-emitting element in the second direction, wherein the 3-2 light-emitting elements are disposed parallel to each other in the first direction and are configured to be adjacent to the 2-2 light-emitting elements in the second direction, wherein the 2-2 light-emitting elements share an anode electrode connected to the pixel circuit of the third type of sub-pixel.

6. The display device as claimed in claim 5, wherein the light control array comprises: a 1-1 light control element, a 2-1 light control element, and a 3-1 light control element overlapping the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element, respectively; a plurality of 1-2 light control elements, a plurality of 2-2 light control elements, and a plurality of 3-2 light control elements overlapping the 1-2 light-emitting elements, the 2-2 light-emitting elements, and the 3-2 light-emitting elements, respectively; wherein the size of a light incident surface of each of the 1-1 light control element, the 2-1 light control element, and the 3-1 light control element is larger than the size of a light incident surface of each of the 1-2 light control elements, the 2-2 light control elements, and the 3-2 light control elements.

7. The display device as claimed in claim 6, wherein the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element have light-emitting areas of different sizes for various colors, the 1-2 light-emitting elements, the 2-2 light-emitting elements, and the 3-2 light-emitting elements have light-emitting areas of different sizes for various colors, the size of a light-incident surface of the 1-1 light-controlling element, the 2-1 light-controlling element, and the 3-1 light-controlling element is proportional to the size of the light-emitting surface of the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element, and the size of a light-incident surface of the 1-2 light-controlling element, the 2-2 light-controlling element, and the 3-2 light-controlling element is proportional to the size of the light-emitting area of ​​the 1-2 light-emitting element, the 2-2 light-emitting element, and the 3-2 light-controlling element.

8. The display device as claimed in claim 6, wherein the touch sensor array comprises: a plurality of sensor electrodes disposed along the first row, each of the sensor electrodes being separated from another adjacent sensor electrode in the second direction, and the 1-1 light control element being inserted therebetween.

9. The display device as claimed in claim 8, wherein each of the sensor electrodes comprises: a first sensor electrode component disposed in a non-light-emitting region surrounding the 1-2 light-emitting elements of the first type of sub-pixel; a second sensor electrode component disposed in a non-light-emitting region of the 2-2 light-emitting elements of the second type of sub-pixel adjacent to the first type of sub-pixel and symmetrical to the first sensor electrode component in the second direction; and a third sensor electrode component connecting the first sensor electrode component to the second sensor electrode component.

10. The display device as claimed in claim 9, wherein the touch sensor array further comprises: a bridge electrode overlapping the sensor electrode, wherein a touch insulating layer is inserted between the two, wherein the bridge electrode is connected to the first sensor electrode component and the second sensor electrode component through a plurality of contact portions, and the third sensor electrode component is disposed between the contact portions in the second direction.

11. The display device as claimed in claim 10, wherein each of the first sensor electrode component and the second sensor electrode component comprises: a first component surrounding the second light-emitting element; and a second component overlapping any of the contact portions and having an area smaller than the first component.

12. The display device of claim 10, wherein the bridge electrode comprises: a first bridge electrode component and a second bridge electrode component extending from both sides of the first row line along the first row line to overlap with the sensor electrode and the dummy electrode, and the first bridge electrode component and the second bridge electrode component being symmetrical in the first direction; and a third bridge electrode component connecting the first bridge electrode component to the second bridge electrode component in each of the contact portions.

13. The display device as claimed in claim 12, wherein the first bridge electrode component and the second bridge electrode component extending along the first row have a pattern shape, the pattern shape being spaced apart from each other in the first direction and changing along the second direction.

14. The display device as claimed in claim 13, wherein the first bridge electrode component and the second bridge electrode component extending along the first row line overlap with the dummy electrode in the first direction at a maximum mutual spacing in the first direction in a non-light-emitting region adjacent to the 1-1 light control element along the first direction, and the first bridge electrode component and the second bridge electrode component extending along the first row line partially overlap with the sensor electrode in the first direction at a minimum mutual spacing in a non-light-emitting region disposed between the contact portions and the 2-1 light-emitting element and the 3-1 light-emitting element.

15. The display device as claimed in claim 14, wherein the first bridge electrode component extending along the first row line and the second bridge electrode component have an inclined pattern shape and the dummy electrode and the sensor electrode overlap each other between the maximum mutual spacing and the minimum mutual spacing.

16. The display device as claimed in claim 12, wherein each of the contact portions comprises: the third bridge electrode component disposed on a first touch insulating layer on the encapsulation layer; a second touch insulating layer disposed on the first touch insulating layer, the third bridge electrode component disposed on the first touch insulating layer and having a first contact hole exposing the third bridge electrode; the black matrix disposed on the second touch insulating layer and having an opening portion larger than the first contact hole; a third touch insulating layer disposed on the second touch insulating layer, the black matrix disposed on the second touch insulating layer and having a second contact hole larger than the first contact hole and smaller than the opening portion, and a third contact hole larger than the opening portion; and a sensor electrode disposed on the third touch insulating layer and connected to the third bridge electrode component through the third contact hole, the second contact hole and the first contact hole.

17. The display device of claim 8, wherein the touch sensor array comprises: a plurality of dummy electrodes disposed in a non-light-emitting region of the second row, the dummy electrodes being separate from and electrically floating with respect to the sensor electrodes disposed on the same layer, wherein the dummy electrodes comprise: a first dummy electrode disposed in a non-light-emitting region surrounding one of the 2-2 light-emitting elements and the 3-2 light-emitting elements adjacent along the second direction; and a second dummy electrode disposed in a non-light-emitting region between the 3-1 light-emitting elements and the 2-1 light-emitting elements adjacent along the second direction.

18. The display device of claim 17, wherein the first dummy electrode has a pattern shape comprising a portion having a maximum length in a non-light-emitting region adjacent to the sensor electrode in the first direction, and a portion having a minimum length in a non-light-emitting region between a plurality of the 1-1 light control elements adjacent in the first direction.

19. The display device as claimed in claim 17, wherein the second dummy electrode has a pattern shape comprising a portion having a maximum length in the first direction in a non-light-emitting region adjacent to the 3-1 light control element in the second direction, and a portion having a minimum length in the first direction in a non-light-emitting region adjacent to the 2-1 light control element in the second direction.

20. The display device of claim 1, wherein the first light control element restricts the viewing angle of light emitted from the first light-emitting element and either the sensor electrode or the dummy electrode and the black matrix within a first cutoff angle in a second direction, and the second light control element restricts the viewing angle of light emitted from the second light-emitting element and either the sensor electrode or the dummy electrode and the black matrix within the first cutoff angle in a first direction and the second direction, the second direction being different from the first direction.

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