Display device

Abstract

Disclosed is a display device capable of selectively controlling a viewing angle and improving optical characteristics. A display device according to an embodiment of the present invention may include: a pixel array including a pixel circuit and a plurality of sub-pixels including first and second light emitting elements connected to the pixel circuit; an encapsulation layer disposed on the pixel array to seal a light emitting element layer including first and second light emitting elements; a touch sensor array including a black matrix, a sensor electrode, and a dummy electrode disposed on the encapsulation layer and overlapping the non-light emitting region of the pixel array; and a light control array disposed on the touch sensor 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, in which the sensor electrode may be disposed in a non-light emitting region of a first type of sub-pixel among the plurality of sub-pixels, a dummy electrode may be disposed in a non-emission region of a second type of sub-pixel and a third type of sub-pixel among the plurality of sub-pixels.

Description

[0001] Cross - reference to related applications

[0002] This application claims the benefit of Korean Patent Application No. 10 - 2023 - 0196752, filed on December 29, 2023, which is hereby incorporated by reference into this application as if fully set forth herein. Technical field

[0003] The present invention relates to a display device capable of controlling a viewing angle. Background art

[0004] Display devices can be used in various electronic devices. A display device may include a touch sensor built therein.

[0005] Among display devices installed in a vehicle, a display device provided in front of a passenger seat needs to limit the driver's viewing angle according to the driving situation of the driver. The display device needs to limit the viewing angle according to the user's request for privacy protection and information protection.

[0006] A display device may use a security film to limit the viewing angle of a displayed image. However, the security film can significantly reduce the brightness of the display device and fix the viewing - angle limitation, causing inconvenience to the user. Summary of the invention

[0007] Accordingly, the present invention aims to provide a display device that substantially overcomes one or more problems caused by the limitations and disadvantages of the related art.

[0008] One aspect of the present invention provides a display device capable of selectively controlling a viewing angle and improving optical characteristics.

[0009] Additional advantages and features of the present invention will be set forth in part in the following description, in part will become apparent to those of ordinary skill in the art upon examination of the following, or may be learned by practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the structure particularly pointed out in the written description and claims and the accompanying drawings.

[0010] To achieve these and other advantages, in accordance with the intent of the present invention, as embodied and broadly described herein, there is provided a display device according to an embodiment, including: a pixel array including a pixel circuit and a plurality of sub-pixels, the plurality of sub-pixels including a first light-emitting element and a second light-emitting element connected to the pixel circuit; a packaging 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, sensor electrodes, and dummy electrodes disposed on the packaging layer and overlapping a non-light-emitting region of the pixel array; and a light control array disposed on the touch sensor array, the 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, wherein the sensor electrodes may be disposed in a non-light-emitting region of a first type of sub-pixels among the plurality of sub-pixels, and the dummy electrodes may be disposed in non-light-emitting regions of a second type of sub-pixels and a third type of sub-pixels among the plurality of sub-pixels.

[0011] It will be understood that the foregoing general description and the following detailed description of the present invention are both exemplary and explanatory and are intended to provide further explanation of the claimed invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the drawings:

[0013] Figure 1 is a schematic diagram illustrating the configuration of a display device according to an embodiment of the present invention.

[0014] Figure 2 is a cross-sectional view schematically illustrating a structural example of a display panel according to an embodiment of the present invention.

[0015] Figure 3 is a schematic diagram illustrating the configuration of a sub-pixel according to an embodiment of the present invention.

[0016] Figure 4A and 4B are diagrams illustrating structural examples of a first light control element and a second light control element according to an embodiment of the present invention.

[0017] Figure 5 is a diagram illustrating a display device according to an embodiment of the present invention, wherein the display device is applied to a vehicle.

[0018] Figure 6 is an equivalent circuit diagram schematically illustrating a structural example of a sub-pixel according to an embodiment of the present invention.

[0019] Figure 7 It is a diagram showing an example of a driving waveform of a sub-pixel according to an embodiment of the present invention.

[0020] Figure 8 It is a diagram showing Figure 1 an enlarged plan view of a structural example of region A in a display panel according to an embodiment of the present invention as shown.

[0021] Figure 9 It is a plan view showing a structural example of region A including a black matrix Figure 8 as shown.

[0022] Figure 10 It is a diagram showing Figure 8 an enlarged plan view of a structural example of a pixel region in region A as shown.

[0023] Figure 11 It is a plan view showing a structural example of a pixel region including a black matrix Figure 10 as shown.

[0024] Figure 12 It is a cross-sectional view showing a structural example of a sub-pixel region taken along line I-I' in the pixel region Figure 11 as shown.

[0025] Figure 13 It is a cross-sectional view showing another structural example of a sub-pixel region according to an embodiment of the present invention.

[0026] Figure 14 It is a diagram showing Figure 11 an enlarged plan view of a structural example of a contact portion in the pixel region as shown.

[0027] Figure 15 It is a cross-sectional view showing a structural example of the contact portion taken along line II-II' Figure 14 as shown.

[0028] Figure 16A and 16B are diagrams comparing the light traveling paths in the sub-pixel regions of a display panel according to a comparative example and an embodiment of the present invention.

[0029] Figure 17 It is a graph showing the light leakage reduction effect of a display device according to an embodiment of the present invention as compared with a comparative example.

[0030] Figure 18 and 19 are schematic cross-sectional views showing the sub-pixel structure of a display panel according to an embodiment of the present invention.

[0031] Figure 20 It is a graph showing the viewing angle cut-off ratio enhancement effect of a display device according to an embodiment of the present invention.

[0032] Figure 21A and 21B is a graph showing the effect of reducing color difference of a display device according to an embodiment of the present invention compared with a comparative example. Detailed Embodiments

[0033] The advantages, features, and methods of implementing the present invention will be clarified by the following aspects described with reference to the accompanying drawings. However, the present invention may be implemented in different forms and should not be construed as limited to the aspects set forth herein. Rather, these aspects are provided to make the present disclosure thorough and complete and to fully convey the scope of the present invention to those of ordinary skill in the art. In addition, the present invention is only defined by the scope of the claims.

[0034] The shapes, sizes, ratios, angles, and quantities disclosed in the accompanying drawings for describing the aspects of the present invention are only examples, and thus, the present invention is not limited to the illustrated details. Similar reference numerals refer to similar elements throughout the specification. In the following description, when it is determined that a detailed description of related known functions or configurations will unnecessarily obscure the gist of the present invention, such detailed description will be omitted. In the case of using "comprising", "having", or "including" described in this specification, other components may also exist, unless "only" is used. Terms in the singular form may include the plural form unless otherwise specified.

[0035] When interpreting an element, the element is interpreted as including an error range even though there is no detailed description of the error range.

[0036] When describing positional relationships, for example, when the positional relationship between two parts is described as "on", "above", "below", "lower", "after", one or more other parts may be provided between the two parts, unless more restrictive terms such as "exactly" or "directly" are used.

[0037] When describing temporal relationships, for example, when the chronological order is described as "after", "subsequently", "next", "before", discontinuous cases may be included, unless more restrictive terms such as "exactly", "immediately", or "directly" are used.

[0038] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present invention, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.

[0039] When describing the elements of the present invention, terms such as "first", "second", "A", "B", "(a)", "(b)", etc. may be used. These terms are intended to identify the corresponding elements from other elements, and the basis, order, sequence, or quantity of the corresponding elements should not be limited or restricted by these terms. Expressions such as an element or layer "connected", "joined", or "adhered" to another element or layer mean that the element or layer can not only be directly connected or adhered to another element or layer, but also be indirectly connected or adhered to another element or layer under the condition that one or more intermediate elements or layers are provided between the elements or layers, unless otherwise specified.

[0040] The term "at least one of" should be understood to include any and all combinations of one or more of the related listed elements. For example, the meaning of "at least one or more of the first element, the second element, and the third element" means: the combination of all elements of two or more elements selected from the first element, the second element, and the third element; and the first element, the second element, or the third element.

[0041] The features of various aspects of the present invention can be combined or combined with each other partially or wholly, and can be interoperated and driven with each other technically, as can be fully understood by those of ordinary skill in the art. Multiple aspects of the present invention can be implemented independently of each other, or can be implemented together in a mutually dependent relationship.

[0042] Hereinafter, aspects of the present invention will be described with reference to the accompanying drawings. Since, for the sake of convenience of description, the scale of each element shown in the drawings is different from the actual scale, the present invention is not limited to the shown scale. In addition, all components of each display device according to all aspects of the present invention can be operably joined and configured.

[0043] Figure 1 is a schematic diagram showing the configuration of a display device according to an embodiment of the present invention, Figure 2 is a cross-sectional view schematically showing a structural example of a display panel according to an embodiment of the present invention, Figure 3 is a schematic diagram showing the configuration of a sub-pixel according to an embodiment of the present invention, Figure 4A and 4B is a diagram showing structural examples of first and second light control elements according to an embodiment of the present invention, Figure 5 is a diagram showing a display device according to an embodiment of the present invention, in which the display device is applied to a vehicle.

[0044] The display device 1000 according to an embodiment can provide both a display function for displaying an image and a touch sensing function for sensing whether a user touch and / or touch coordinates exist.

[0045] The display device 1000 according to an embodiment may be an electroluminescent display device including a touch sensor or a micro light-emitting diode display device. The electroluminescent display device including a touch sensor may be an organic light-emitting diode (OLED) display device, a quantum dot light-emitting diode display device, or an inorganic light-emitting diode display device.

[0046] Referring Figure 1 , 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 a touch sensor array built into the display panel 100. The display device 1000 may further include a power management circuit for generating and providing a plurality of power supply voltages required for the operation of the display panel 100, the display driving circuit 200, and the touch sensing circuit 300.

[0047] The display panel 100 may be a rigid display panel or a flexible display panel capable of being deformed, such as a foldable, bendable, rollable, and stretchable display panel.

[0048] The display panel 100 may include: a display area DA for displaying an image; and a non-display area NDA as a border area surrounding the display area DA and located outside. The display panel 100 may further include a touch sensor array disposed in the display area DA to sense a user's touch.

[0049] The display panel 100 may display an image by using the display area DA in which a plurality of sub-pixels are arranged in a matrix form. The pixel matrix of the display area DA may include: a plurality of row lines composed of a plurality of sub-pixels arranged in a first direction X; and a plurality of column lines composed of a plurality of sub-pixels arranged in a second direction Y. The display panel 100 may include a plurality of signal lines connected to the plurality of sub-pixels, including a plurality of gate lines, a plurality of data lines, a plurality of power supply lines, and the like.

[0050] The plurality of sub-pixels may include a red sub-pixel that emits red light, a green sub-pixel that emits green light, and a blue sub-pixel that emits blue light. The plurality of sub-pixels may further include a white sub-pixel that emits white light. A unit pixel may include at least two sub-pixels.

[0051] The display driving 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 the plurality of gate lines; and a timing controller that controls the operations of the data driver and the gate driver.

[0052] The touch sensing circuit 300 may include: a touch driving circuit that provides a touch driving signal to a touch sensor array built into the display panel 100 and receives a readout signal from the touch sensor array to generate sensing data; and a touch controller that detects the presence or absence of a touch and the touch coordinate position based on the sensing data provided from the touch driving circuit; and so on.

[0053] The touch sensor array may adopt a self - capacitance method of sensing a change in self - capacitance according to a touch or a mutual - capacitance method of sensing a change in mutual - capacitance according to a touch.

[0054] The display panel 100 according to an embodiment may control the viewing angle according to the viewing - angle mode. The display area DA of the display panel 100 may display an image in a first viewing - angle mode (where the viewing angle with respect to a first direction is relatively wide) or in a second viewing - angle mode (where the viewing angle with respect to the first direction is narrower than the viewing angle in the case of the first viewing - angle mode). The first viewing - angle mode may be expressed as a wide - viewing - angle mode or a shared mode. The second viewing - angle mode may be expressed as a narrow - viewing - angle mode or a privacy mode. The display area DA of the display panel 100 may be driven in a switchable privacy mode (SPM) that can switch between the shared mode and the privacy mode.

[0055] Referring to Figure 2 , the display panel 100 according to an embodiment may include: a pixel array 140 including a circuit element layer 120 and a light - emitting element layer 130, where the circuit element layer 120 includes a plurality of transistors and a plurality of signal lines disposed on a substrate 110, and the light - emitting element layer 130 includes a plurality of light - emitting elements EL1 and EL2 disposed on the circuit element layer 120; and a packaging layer 150 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 including a plurality of sensor electrodes disposed on the packaging layer 150; and a light control array 170 including 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 bonded to the light control array 170 through an optically clear adhesive (OCA) 180.

[0056] The touch sensor array 160 according to an embodiment may include sensor electrodes, virtual electrodes, and a black matrix disposed to overlap non - light - emitting regions of the light - emitting elements EL1 and EL2. At least one of the sensor electrodes, virtual electrodes, and black matrix according to an embodiment overlaps with ends of the light control elements L1 and L2 to block light, thereby preventing light leakage due to leakage light or reflected light. At least one of the sensor electrodes, virtual electrodes, and black matrix according to an embodiment does not overlap with the end of the light control element L1 for a wide viewing angle, thereby preventing the limitation of the wide viewing angle. Its detailed description will be given later.

[0057] Referring to Figure 2 and 3 , the sub-pixel SP according to the embodiment capable of controlling the viewing angle includes: a first light-emitting element EL1; a second light-emitting element EL2; and a pixel circuit 10 that divides and drives the first light-emitting element EL1 and the second light-emitting element EL2 according to the viewing angle mode, and a first light control element ( Figure 2 L1) can overlap on the first light-emitting element EL1, and a second light control element ( Figure 2 L2) can overlap on the second light-emitting element EL2.

[0058] The sub-pixel SP according to the embodiment can drive the first light-emitting element EL1 in the first viewing angle mode and emit light with a first viewing angle via the first light control element L1. The sub-pixel SP can drive the second light-emitting element EL2 in the second viewing angle mode and emit light with a second viewing angle narrower than the first viewing angle via the second light control element L2.

[0059] Referring to Figure 4A , the first light control element L1 can have a semi-cylindrical lens structure that is longer in the first direction X, and the lens structure is not limited to this. Referring to Figure 4B , the second light control element L2 can have a hemispherical lens structure, and the lens structure is not limited to this. In the embodiment, the first light control element L1 and the second light control element L2 can differently control (or limit) the viewing angle in the first direction X and equivalently control (or limit) the viewing angle in the second direction Y.

[0060] According to the embodiment, the light control elements L1 and L2 can be formed of a fluid material, a semi-fluid material, or a solid. The materials and structures of the light control elements L1 and L2 are not limited to the above examples. In addition, in some cases, the light control elements L1 and L2 can be referred to as a light control layer, a light control structure, a lens, or a viewing angle control unit, but are not limited to these terms.

[0061] In Figure 4A and 4B , the first direction X can represent the left-right direction (e.g., the horizontal direction) of the display panel 100, the second direction Y can represent the up-down direction (e.g., the vertical direction) of the display panel 100, and the third direction Z can represent the front-back direction (e.g., the thickness direction) of the display panel 100.

[0062] 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 limit the path of the light emitted from the first light-emitting element EL1 within a specific angle in the first direction X, thereby providing light with a wider viewing angle.

[0063] In the second viewing angle 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 from the second light-emitting element EL2 via the second light control element L2 within a specific cut-off angle in the first direction X, so as to provide light with a narrower viewing angle.

[0064] The first light control element L1 and the second light control element L2 can control the path of the light in the second direction Y within the cut-off angle, so as to control with a narrower viewing angle. Therefore, when the display device 1000 is applied to Figure 5 the vehicle shown, it is possible to prevent the image displayed on the display device 1000 from being reflected by the front glass of the vehicle to interfere with the driver's line of sight.

[0065] The sub-pixel SP according to the embodiment can receive the data voltage Vdata from the data driver of the display driving circuit 200 via any one of the data lines 22. The sub-pixel SP can receive the scan signal SCAN from the gate driver of the display driving circuit 200 via at least one gate line 12, and can receive the light emission control signal EM via at least one gate line 16. The sub-pixel SP can receive the first mode signal SH from the gate driver of the display driving circuit 200 via any one of the gate lines 42, and can receive the second mode signal PR via any one of the gate lines 44. The sub-pixel SP according to the embodiment can receive the high-potential power supply voltage ELVDD from the power management circuit via the first power supply line 32, receive the low-potential power supply voltage ELVSS from the power management circuit via the common electrode (cathode) CE and the second power supply line 34, and can receive the reference voltage Vref via the reference line 24.

[0066] The gate driver can be built in and set in the non-display area NDA of the display panel 100. Without limitation, the gate driver can be distributed and set in the display area DA. The gate driver according to the embodiment can be built in the display panel 100 in a gate-in-panel (GIP) type composed of transistors formed in the same process as the transistors in the display area DA.

[0067] The gate driver can include at least one scan driver 210 that drives at least one gate line 12 and at least one light emission control driver 220 that drives at least one gate line 16. The number of gate lines connected to the sub-pixel SP, the number of scan drivers 210, and the number of light emission control drivers 220 can be variously changed according to the specific structure of the pixel circuit constituting the sub-pixel SP.

[0068] The scan driver 210 can generate at least one scan signal SCAN and provide it to at least one gate line 12 provided in each of the multiple pixel row lines.

[0069] The light emission control driver 220 may 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 row lines.

[0070] In an embodiment, the gate driver may further include a mode control unit 230 for providing mode signals SH and PR to the gate lines 42 and 44.

[0071] The mode control unit 230 may generate a first mode signal SH using a mode selection signal, and provide the first mode signal SH to each of the plurality of pixel row lines via any one of the gate lines 42, and may generate and provide a second mode signal PR via any one of the gate lines 44. The mode control unit 230 may selectively drive the first light emitting element EL1 and the second light emitting element EL2 of each sub-pixel SP by using the first mode signal SH and the second mode signal PR.

[0072] In an embodiment, the first and second mode signals SH and PR may be provided from the light emission control driver 220.

[0073] At least one of an LTPS transistor using low temperature polycrystalline silicon (LTPS) semiconductor and an oxide transistor using metal oxide semiconductor may be applied to a plurality of transistors provided in the display area DA of the display panel 100 and the non-display area NDA including the gate driver. The display panel 100 according to an embodiment may be configured such that LTPS transistors and oxide transistors coexist to reduce power consumption.

[0074] Refer to Figure 5 , a plurality of display devices provided on a vehicle dashboard may include a cluster, a central information display CID, and a co-driver display CDD. A display device that limits the viewing angle to within a cut-off angle only in the second direction Y for safe driving may be applied to the cluster and the central information display CID mainly used by the driver DR. A display device including a touch sensor may be applied to the central information display CID. A display device 1000 capable of controlling the viewing angle in the first viewing mode and the second viewing mode as in the above embodiment may be applied to the co-driver display CDD used by the driver DR and the passenger PA.

[0075] The co-driver display CDD may be driven in the first viewing mode under the control of the host system when the driver DR is not driving, and may provide an image with a wider viewing angle in the first direction X to the driver DR and the passenger PA.

[0076] When the driver DR is driving, the co-driver display CDD can be driven in the second viewing angle mode under the control of the host system, and the viewing angle can be limited within the cut-off angle in the first direction X to provide only the passengers PA with an image having a narrower viewing angle, and the image may not be provided to the driver DR to avoid interfering with driving.

[0077] The display device 1000 according to an embodiment can be applied not only to the co-driver display CDD, but also to various display devices such as mobile displays, IT displays, and TV displays that selectively require viewing angle control for privacy and information protection.

[0078] Figure 6 is an equivalent circuit diagram illustrating an example of the structure of sub-pixels according to an embodiment of the present invention, Figure 7 is a diagram illustrating an example of the driving waveform of sub-pixels according to an embodiment of the present invention.

[0079] Referring to Figure 6 , the sub-pixel SP may include: a first light-emitting element EL1 and a second light-emitting element EL2; and a pixel circuit 10 that separately drives the first light-emitting element EL1 and the second light-emitting element EL2. In an embodiment, the pixel circuit 10 may include a driving transistor DT, a plurality of switching transistors T1 to T8, and a storage capacitor Cst, but is not limited thereto.

[0080] The pixel circuit 10 may receive a first scan signal SCAN1 from the first scan driver 210 via the first gate line 12, and may receive a second scan signal SCAN2 from the second scan driver 212 via the second gate line 14.

[0081] The pixel circuit 10 may receive a light emission control signal EM from the first light emission control driver 220 via the third gate line 16.

[0082] In an embodiment, the pixel circuit 10 may receive a first mode signal SH from the mode control unit 230 via the fourth gate line 42, and may receive a second mode signal PR via the fifth gate line 44.

[0083] In an embodiment, the pixel circuit 10 may receive a first mode signal SH from the second light emission control driver 220 via the fourth gate line 42, and may receive a second mode signal PR via the fifth gate line 44.

[0084] The pixel circuit 10 may receive a data signal Vdata from the data driver via the data line 22. The pixel circuit 10 may receive a high-potential power supply voltage ELVDD from the power management circuit via the first power supply line 32, receive a low-potential power supply voltage ELVSS from the power management circuit via the second power supply line 34 and the common electrode CE, and may receive a reference voltage Vref via the reference line 24.

[0085] In an embodiment, the second light-emitting element EL2 may include a plurality of light-emitting elements. For example, the second light-emitting element EL2 may include a 2-1st light-emitting element and a 2-2nd light-emitting element. In this case, the 2-1st light-emitting element and the 2-2nd light-emitting element may be connected in parallel. According to an embodiment, anodes of the 2-1st light-emitting element and the 2-2nd light-emitting element may be formed together or shared, but the present invention is not limited thereto. According to an embodiment, the second light-emitting element EL2 may include three or more light-emitting elements.

[0086] Referring to Figure 7 , the sub-pixel SP may be driven such that for each of the Nth and (N + 1)th frame periods, an initialization period t1, a sampling and writing period t2, and a light-emitting period t3 are included. For ease of description, in Figure 7 , the Nth frame period represents any frame period of the first viewing angle mode, and the (N + 1)th frame period represents any frame period of the second viewing angle mode.

[0087] Each of the driving transistor DT of the pixel circuit 10 and the plurality of switching transistors T1 to T8 includes a gate, a source, and a drain. Since the source and the drain are not fixed and may be changed according to the voltage applied to the gate and the current direction, one of the source and the drain may be denoted as a first electrode, and the other of the source and the drain may be denoted as a second electrode. The driving transistor DT of the pixel circuit 10 and the plurality of switching transistors T1 to T8 may use at least one of polycrystalline silicon semiconductors, amorphous silicon semiconductors, and oxide semiconductors, may be of P-type or N-type, and may be used in a combination of P-type and N-type.

[0088] The first and second light-emitting elements EL1 and EL2 may include anodes AE1 and AE2 separately connected to the eighth and sixth switching transistors T8 and T6, a cathode CE receiving a low-potential power supply voltage ELVSS from a second power supply line 34, and a light-emitting layer disposed between the anodes AE1 and AE2 and the cathode CE. In the first and second light-emitting elements EL1 and EL2, when a driving current is provided from the driving transistor DT via each of the eighth and sixth switching transistors T8 and T6, electrons from the cathode CE are injected into the light-emitting layer, and holes from the anodes AE1 and AE2 are injected into the light-emitting layer, so that a fluorescent material or a phosphorescent material emits light by the combination of electrons and holes in the light-emitting layer to emit light having a brightness proportional to the current value of the driving current.

[0089] The gate of the driving transistor DT may be connected to the storage capacitor Cst, the first electrode may be connected to the first power supply line 32 that provides the high-potential power supply voltage ELVDD, and the second electrode may be connected to the first electrode of the fourth switching transistor T4. The driving transistor DT may be commonly connected to the first electrodes of the sixth and eighth switching transistors T6 and T8 via the fourth switching transistor T4. The driving transistor DT may drive the first light-emitting element EL1 via the fourth and eighth switching transistors T4 and T8, or may drive the second light-emitting element EL2 via the fourth and sixth switching transistors T4 and T6. The driving transistor DT may control the light-emitting intensity of the first light-emitting element EL1 via the fourth and eighth switching transistors T4 and T8 by controlling the driving current according to the driving voltage charged in the storage capacitor Cst, or may control the light-emitting intensity of the second light-emitting element EL2 via the fourth and sixth switching transistors T4 and T6.

[0090] The storage capacitor Cst may be connected between the second electrode of the first switching transistor T1 and the gate of the driving transistor DT to charge a driving voltage corresponding to the data voltage Vdata. The storage capacitor Cst may hold the charged driving voltage during the light-emitting period t3 when the first switching transistor T1 is turned off and supply the driving voltage to the driving transistor DT.

[0091] The first switching transistor T1 may be turned on or off in response to the first scan signal SCAN1 of the first gate line 12 provided in the i-th (i is a natural number) pixel row line. The first switching transistor T1 may supply the data voltage Vdata provided via the data line 22 to the first electrode of the storage capacitor Cst during the sampling and writing period t2 when the first scan signal SCAN1 has the gate-on voltage VON. The first switching transistor T1 may be turned off during the initialization period t1 and the light-emitting period t3 when the first scan signal SCAN1 has the gate-off voltage VOFF.

[0092] The second, fifth, and seventh switching transistors T2, T5, and T7 may be turned on or off in response to the second scan signal SCAN2 of the second gate line 14 provided to the i-th pixel row line. The second, fifth, and seventh switching transistors T2, T5, and T7 may be turned on during the initialization period t1 and the sampling and writing period t2 when the second scan signal SCAN2 has the gate-on voltage VON, and may be turned off during the light-emitting period t3 when the second scan signal SCAN2 has the gate-off voltage VOFF.

[0093] The second switching transistor T2 can connect the gate of the driving transistor DT to the second electrode during the initialization period t1 and the sampling and writing period t2 in response to the second scan signal SCAN2, thereby connecting the driving transistor DT in a diode structure. 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 be charged with a data voltage that compensates for the threshold voltage Vth of the driving transistor DT.

[0094] The fifth switching transistor T5 can supply the reference voltage Vref provided via the reference line 24 to the anode AE2 of the second light-emitting element EL2 during the initialization period t1 and the sampling and writing period t2 in response to the second scan signal SCAN2.

[0095] The seventh switching transistor T7 can supply the initialization voltage Vref provided via the reference line 24 to the anode AE1 of the first light-emitting element EL1 during the initialization period t1 and the sampling and writing period t2 in response to the second scan signal SCAN2.

[0096] The third and fourth switching transistors T3 and T4 can be turned on or off in response to the emission control signal EM provided to the third gate line 16 of the i-th pixel row line. The third and fourth switching transistors T3 and T4 can be turned on during the initialization period t1 and the emission period t3 when the emission control signal EM has the gate-on voltage VON. The third and fourth switching transistors T3 and T4 can be turned off during the sampling and writing period t2 when the emission control signal EM has the gate-off voltage VOFF and during the period between the sampling and writing period t2 and the emission period t3.

[0097] The third switching transistor T3 can supply the reference voltage Vref provided via the reference line 24 to the first electrode of the storage capacitor Cst during the initialization period t1 and the emission period t3 in response to the emission control signal EM.

[0098] The fourth switching transistor T4 can connect the driving transistor DT to the sixth and eighth switching transistors T6 and T8 during the initialization period t1 and the emission period t3 in response to the emission control signal EM.

[0099] 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 row line. The eighth switching transistor T8 can be turned on during the driving period of the N-th frame in the first viewing angle mode when the first mode signal SH has the gate-on voltage VON, and can be turned off during the driving period of the (N + 1)-th frame in the second viewing angle mode when the first mode signal SH has the gate-off voltage VOFF.

[0100] The eighth switching transistor T8 can connect the fourth switching transistor T4 to the first light-emitting element EL1 in the Nth frame during the driving period of the first viewing angle mode in response to the first mode signal SH.

[0101] During the light-emitting period t3 of the Nth frame in the driving period of the first viewing angle mode, the driving transistor DT can drive the first light-emitting element EL1 via the fourth and eighth switching transistors T4 and T8. Therefore, the sub-pixel SP can provide light of the first viewing angle via the first light-emitting element EL1 and the first light control element (see L1 in Figure 4A ).

[0102] 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 provided in the ith pixel row line. The sixth switching transistor T6 can be turned on during the (N + 1)th frame in the driving period of the second viewing angle mode when the second mode signal PR has a gate-on voltage VON, and can be turned off during the Nth frame in the driving period of the first viewing angle mode when the second mode signal PR has a gate-off voltage VOFF.

[0103] The sixth switching transistor T6 can connect the fourth switching transistor T4 to the second light-emitting element EL2 in the (N + 1)th frame during the driving period of the second viewing angle mode in response to the second mode signal PR.

[0104] During the light-emitting period t3 of the (N + 1)th frame in the driving period of the second viewing angle mode, the driving transistor DT can drive the second light-emitting element EL2 via the fourth and sixth switching transistors T4 and T6. Therefore, the sub-pixel SP can provide light of the second viewing angle via the second light-emitting element EL2 and the second light control element L2 ( Figure 4B ).

[0105] Figure 8 is an enlarged plan view illustrating a structural example of region A in a display panel according to the Figure 1 illustrated embodiment, Figure 9 is a plan view illustrating a structural example of region A including a black matrix Figure 8 illustrated, Figure 10 is an enlarged plan view illustrating a structural example of a pixel region in region A Figure 8 illustrated, Figure 11 is a plan view illustrating a structural example of a pixel region including a black matrix Figure 10 illustrated.

[0106] Referring to Figures 8 to 11 , region A is in accordance with Figure 1An enlarged view of a plurality of pixel regions on the display panel 100 of the illustrated embodiment. The region A of the display panel 100 according to the embodiment may have a structure in which a pixel array, a touch sensor array, and a light control array at least partially overlap. The pixel array may include a plurality of sub-pixels SP1, SP2, and SP3 having a plurality of light-emitting elements EL1: EL11, EL21, EL31 and EL2: EL12, EL22, EL32. The touch sensor array may include a plurality of sensor electrodes SE, bridge electrodes BE, dummy electrodes DSE, and a black matrix BM. The light control array may include a plurality of light control elements L1: L11, L21, L31 and L2: L12, L22, L32.

[0107] The pixel array may include: a (2n - 1)-th row line R2n - 1 (n is a natural number) and a 2n-th row line R2n including a plurality of sub-pixels SP1, SP2, and SP3 arranged along a first direction X; and a (2m - 1)-th column line C2m - 1 (m is a natural number) and a 2m-th column line C2m including a plurality of sub-pixels SP1, SP2, and SP3 arranged along a second direction Y.

[0108] The (2m - 1)-th column line C2m - 1 may include a plurality of first-type sub-pixels SP1 arranged along the second direction Y. The 2m-th column line C2m may include a plurality of second- and third-type sub-pixels SP2 and SP3 alternately arranged in the second direction Y.

[0109] Each of the (2n - 1)-th row line R2n - 1 and the 2n-th row line R2n may include a plurality of first- to third-type sub-pixels SP1, SP2, and SP3, wherein the first-type sub-pixels SP1 are alternately arranged with the second- and third-type sub-pixels SP2 and SP3 in the first direction X.

[0110] Each pixel PX may include a first-type sub-pixel SP1 that emits light of a first color, a second-type sub-pixel SP2 that emits light of a second color, and a third-type sub-pixel SP3 that emits light of a third color. The first-type sub-pixels SP1 may be arranged adjacent to the second- and third-type sub-pixels SP2 and SP3 in the first direction X. The second- and third-type sub-pixels SP2 and SP3 may be arranged adjacent to and parallel to each other in the second direction Y.

[0111] The first type of sub-pixel SP1 may include: a first light-emitting element EL11 (or the 1-1 light-emitting element); a first light control element L11 (or the 1-1 light control element) overlapping the first light-emitting element EL11; at least one second light-emitting element EL12 (or the 1-2 light-emitting element); and at least one second light control element L12 (or the 1-2 light control element) overlapping the at least one second light-emitting element EL12. The names of other light-emitting elements and light control elements follow this pattern. The light-emitting region of the first light-emitting element EL11 may have a structure with a longer length in the first direction X than in the second direction Y.

[0112] In an embodiment, in the first type of sub-pixel SP1, two second light-emitting elements EL12 may be arranged to be separated from each other in the second direction Y, with the first light-emitting element EL11 interposed therebetween. The two second light-emitting elements EL12 may have a parallel connection structure in which the anodes are connected to each other.

[0113] The second light-emitting element EL12 and the second light control element L12 of the first type of sub-pixel SP1 may be arranged adjacent to the second light-emitting element EL12 and the second light control element L12 of another first type of sub-pixel SP1 adjacent to each other in the second direction Y.

[0114] In another embodiment, a plurality of second light control elements L12 may be arranged on one second light-emitting element EL12 in the first type of sub-pixel SP1. One light-emitting layer may be commonly arranged Figure 10 below the plurality of second light control elements L12 shown. However, in this case, the light-emitting layer of the second light-emitting element EL12 may not be arranged below the region corresponding to the first light-emitting element EL11, and a light-emitting layer dedicated to the first light-emitting element EL11 may be arranged separately.

[0115] The first type of sub-pixel SP1 may be a red sub-pixel having the first and second light-emitting elements EL11 and EL12 that emit red light.

[0116] The second type of sub-pixel SP2 may include: a first light-emitting element EL21; a first light control element L21 overlapping the first light-emitting element EL21; at least one second light-emitting element EL22; and at least one second light control element L22 overlapping the at least one second light-emitting element EL22.

[0117] In the second type of sub-pixel SP2, two second light-emitting elements EL22 may be arranged parallel to each other in the first direction X, and the first light-emitting element EL21 and the two second light-emitting elements EL22 may be separated from each other in the second direction Y. The two second light-emitting elements EL22 may have a parallel connection structure in which the anodes are connected to each other.

[0118] In the second type of sub-pixel SP2, two second light control elements L22 may be arranged in parallel in the first direction X, and the first light control element L21 and the two second light control elements L22 may be separately arranged in the second direction Y.

[0119] The second type of sub-pixel SP2 may be a green sub-pixel having first and second light-emitting elements EL21 and EL22 that emit green light.

[0120] In the third type of sub-pixel SP3, two second light-emitting elements EL32 may be arranged in parallel in the first direction X, and the first light-emitting element EL31 and the two second light-emitting elements EL32 may be separated from each other in the second direction Y. The two second light-emitting elements EL32 may have a parallel connection structure in which anodes are connected to each other.

[0121] In the third type of sub-pixel SP3, two second light control elements L32 may be arranged in parallel in the first direction X, and the first light control element L31 and the two second light control elements L32 may be separately arranged in the second direction Y.

[0122] The second light-emitting element EL22 and the second light control element L22 of the second type of sub-pixel SP2 may be arranged adjacent to the second light-emitting element EL32 and the second light control element L32 of the third type of sub-pixel SP3 in the same pixel PX adjacent to each other in the second direction Y. The first light-emitting element EL31 and the first light control element L31 of the third type of sub-pixel SP3 may be arranged adjacent to the first light-emitting element EL21 and the first light control element L21 of the second type of sub-pixel SP2 in another pixel PX adjacent to each other in the second direction Y.

[0123] The third type of sub-pixel SP3 may be a blue sub-pixel having first and second light-emitting elements EL31 and EL32 that emit blue light.

[0124] According to an embodiment, the color of 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 may be a color different from the above colors. Further, in some cases, the arrangements of the light control elements L1:L11,L21,L31 and L2:L12,L22,L32 and the arrangements of the light-emitting elements in the first type of sub-pixel SP1 and the second type of sub-pixel SP2 may be different.

[0125] The sizes of the first light-emitting elements EL1: EL11, EL21, and EL31 may be larger than those of the second light-emitting elements EL2: EL12, EL22, and EL32. The second light-emitting elements EL2 may have sizes smaller than the light-emitting areas of the first light-emitting elements EL1, and the plurality of light-emitting areas of the second light-emitting elements EL2 may be separated in the second direction Y and the first light-emitting elements EL1 may be interposed therebetween. The sizes of the light-incident surfaces of the first light control elements L1: L11, L21, and L31 may be set to be larger than the sizes (the sizes of the light-emitting areas) of the first light-emitting elements EL1: EL11, EL21, and EL31, thereby improving the light-emitting efficiency. The sizes of the light-incident surfaces of the second light control elements L2: L12, L22, and L32 may be set to be larger than the sizes (the sizes of the light-emitting areas) of the second light-emitting elements EL2: EL12, EL22, and EL32. The size of the light-incident surface of the first light control element L1 may be larger than the size of the light-incident surface of the second light control element L2. The light control elements may have light-incident surface sizes proportional to the sizes of the light-emitting areas of the corresponding light-emitting elements.

[0126] In an embodiment, the sizes of the first light-emitting elements EL11, EL21, and EL31 may be different for each color to compensate for the light-emitting efficiency deviation of the first light-emitting elements EL11, EL21, and EL31 of each color. In an embodiment, the sizes of the first light-emitting element EL11 and the first light control element L11 of the first type of sub-pixel SP1 may be the smallest, and the sizes of the first light-emitting element EL21 and the first light control element L21 of the second type of sub-pixel SP2 may be equal to or smaller than the sizes of the first light-emitting element EL31 and the first light control element L31 of the third type of sub-pixel SP3.

[0127] In an embodiment, the sizes of the second light-emitting elements EL12, EL22, and EL32 may be different for each color, or the number of light-emitting areas having the same size may be different for each color to compensate for the change in the light-emitting efficiency of the second light-emitting elements EL12, EL22, and EL32 of each color. In an embodiment, the sizes (numbers) of the second light-emitting element EL12 and the second light control element L12 of the first type of sub-pixel SP1 may be the smallest, and the sizes (numbers) of the second light-emitting element EL22 and the second light control element L22 of the second type of sub-pixel SP2 may be equal to or smaller than the sizes (numbers) of the second light-emitting element EL32 and the second light control element L32 of the third type of sub-pixel SP3.

[0128] The touch sensor array may include a plurality of sensor electrodes SE, a plurality of dummy electrodes DSE, and a plurality of bridge electrodes BE that are disposed to overlap a non-light-emitting region of the pixel array. The plurality of sensor electrodes SE and the plurality of dummy electrodes DSE may be separately disposed on the same layer. The bridge electrode BE may be disposed on a different layer to overlap the sensor electrode SE and the dummy electrode DSE, and may electrically connect the plurality of sensor electrodes SE via a contact portion CNT.

[0129] In an embodiment, the plurality of sensor electrodes SE may be disposed in the non-light-emitting region of the first type of sub-pixel SP1 along the (2m - 1)-th column line C2m - 1. The plurality of sensor electrodes SE may be separated in the second direction Y, and the first light-emitting element EL11 of the first type of sub-pixel SP1 may be interposed therebetween.

[0130] Each of the plurality of sensor electrodes SE may include: a first sensor electrode portion SE1 disposed in the non-light-emitting region around the second light-emitting element EL12 of the first type of sub-pixel SP1; and a second sensor electrode portion SE2 disposed in the non-light-emitting region around the second light-emitting element EL22 of another second type of sub-pixel SP2 adjacent to each other in the second direction Y. Each of the plurality of sensor electrodes SE may further include a third sensor electrode portion SE3 that connects the first sensor electrode portion SE1 to the second sensor electrode portion SE2 in the second direction Y.

[0131] In each of the first sensor electrode portion SE1 and the second sensor electrode portion SE2, a first portion surrounding the second light-emitting element EL12 may have a relatively large area, a second portion overlapping any one of the contact portions CNT may have an area smaller than the first portion, and the third sensor electrode portion SE3 may have the smallest area. The first sensor electrode portion SE1 and the second sensor electrode portion SE2 may have a structure symmetric about the third sensor electrode portion SE3 in the second direction Y.

[0132] Each of the first sensor electrode portion SE1 and the second sensor electrode portion SE2 may be electrically connected to the bridge electrode BE via a contact portion CNT adjacent to the third sensor electrode portion SE3 in the second direction Y. Two contact portions CNT may be disposed in parallel in the second direction Y between the second light-emitting elements EL12 of the first type of sub-pixel SP1 adjacent to each other in the second direction Y, and the third sensor electrode portion SE3 may be disposed between the two contact portions CNT.

[0133] The first sensor electrode portion SE1 and the second sensor electrode portion SE2 can be respectively connected to the third sensor electrode portion SE3, so that the first sensor electrode portion SE1, the second sensor electrode portion SE2, and the third sensor electrode portion SE3 can be set as an integrated pattern. The first sensor electrode portion SE1, the second sensor electrode portion SE2, and the third sensor electrode portion SE3 forming the integrated pattern can be disposed, for example, above the first type of sub-pixel SP1 located on the 2n-th row line R2n and the first type of sub-pixel SP1 located on the 2n + 1-th row line R2n+1. More specifically, the first sensor electrode portion SE1 overlaps with the non-light-emitting region of the first type of sub-pixel SP1 located on the 2n + 1-th row line R2n+1, the second sensor electrode portion SE2 overlaps with the non-light-emitting region of the first type of sub-pixel SP1 located on the 2n-th row line R2n, and the third sensor electrode portion SE3 overlaps with the non-light-emitting region between the first type of sub-pixel SP1 located on the 2n-th row line R2n and the first type of sub-pixel SP1 located on the 2n + 1-th row line R2n+1, and can be integrally formed together with the first sensor electrode portion SE1 and the second sensor electrode portion SE2.

[0134] The first sensor electrode portion SE1 and the second sensor electrode portion SE2 can include an opening portion OH1 that overlaps with the light-emitting region of the second light-emitting element EL12 and overlaps with the second light control element L12, respectively. The size of the opening portion OH1 of each of the first sensor electrode portion SE1 and the second sensor electrode portion SE2 can be larger than the size of the light-emitting region of the second light-emitting element EL12 and smaller than the size of the light incident surface of the second light control element L12. The end portions of the first sensor electrode portion SE1 and the second sensor electrode portion SE2 that overlap with the second light control element L12 and the second light control element L12 can limit the radiation angle of the light emitted from the second light-emitting element EL12 within the cut-off angle in the first direction X and the second direction Y, and block light leakage.

[0135] The end portions of the first sensor electrode portion SE1 and the second sensor electrode portion SE2 separated in the second direction Y (with the first light-emitting element EL11 of the first type of sub-pixel SP1 interposed therebetween) overlap with the end portion of the first light control element L11 that does not overlap with the first light-emitting element EL11, so that, together with the first light control element L11, the radiation angle of the light emitted from the first light-emitting element EL11 can be limited within the cut-off angle in the second direction Y, and light leakage can be blocked.

[0136] In an embodiment, each of the plurality of bridge electrodes BE can pass through the non-light-emitting regions of the first to third types of sub-pixels SP1, SP2, and SP3, and can be disposed along the second direction Y.

[0137] The bridging electrode BE may include: first and second bridging electrode portions BE1 and BE2 extending along the second direction Y or along the (2m - 1)-th column line C2m - 1; and a third bridging electrode portion BE3 connecting the first bridging electrode portion BE1 to the second bridging electrode portion.

[0138] The first and second bridging electrode portions BE1 and BE2 may overlap with a first sensor electrode SE around a second light-emitting element EL12 of a first type of sub-pixel SP1, and may overlap with dummy electrodes DSE around second light-emitting elements EL22 and EL32 of second and third types of sub-pixels SP2 and SP3, and may be symmetric in the first direction X. The third bridging electrode portion BE3 may be electrically connected to a first sensor electrode portion SE1 and a second sensor electrode portion SE2 via a contact portion CNT.

[0139] The first and second bridging electrode portions BE1 and BE2 extending from both sides of the (2m - 1)-th column line C2m - 1 along the (2m - 1)-th column line C2m - 1 may have a pattern shape in which the mutual pitch in the first direction X changes along the second direction Y.

[0140] In an embodiment, the first and second bridging electrode portions BE1 and BE2 may have a maximum mutual pitch in the first direction X in a non-light-emitting region overlapping with a dummy electrode DSE adjacent to a first light control element L11 of a first type of sub-pixel SP1 in the first direction X.

[0141] In an embodiment, the first and second bridging electrode portions BE1 and BE2 may have a minimum mutual pitch in the first direction X in a non-light-emitting region partially overlapping with a sensor electrode between a plurality of contact portions CNT and first light control elements L21 and L31 of second and third types of sub-pixels SP2 and SP3, that is, in a region connected to the third bridging electrode BE3.

[0142] In an embodiment, the first and second bridging electrode portions BE1 and BE2 may have a diagonal pattern shape or an inclined pattern shape overlapping with each other via a dummy electrode DSE and a sensor electrode SE between the maximum mutual pitch portion and the minimum mutual pitch portion.

[0143] A plurality of virtual electrodes DSE may be disposed in the non-light-emitting regions of the 2m-th column lines C2m. The virtual electrodes DSE may be disposed in the non-light-emitting regions of the second and third type sub-pixels SP2 and SP3. The plurality of virtual electrodes DSE may include: a first virtual electrode DSE1 disposed in the non-light-emitting region around the second light-emitting elements EL22 and EL32 of the second and third type sub-pixels SP2 and SP3 adjacent to each other along the second direction Y; and a second virtual electrode DSE2 disposed in the non-light-emitting region between the first light-emitting elements EL21 and EL31 of the second and third type sub-pixels SP2 and SP3 adjacent to each other along the second direction Y. The first virtual electrode DSE1 may have an area larger than that of the second virtual electrode DSE2.

[0144] The first and second virtual electrodes DSE1 and DSE2 may be electrically floating electrodes not electrically connected to other electrodes. The floating first and second virtual electrodes DSE1 and DSE2 may reduce the parasitic capacitance formed between the common cathode of the pixel array and the touch sensor array, thereby reducing the distortion of the touch driving signal and the touch sensing signal, and thus improving the sensing performance.

[0145] The first virtual electrode DSE1 may include an opening OH2 that overlaps with the light-emitting regions of the second light-emitting elements EL22 and EL32 and overlaps with the second light control elements L22 and L32. The size of the opening OH2 of the first virtual electrode DSE1 may be larger than the size of the light-emitting regions of the second light-emitting elements EL22 and EL32 and smaller than the size of the light incident surfaces of the second light control elements L22 and L32. The ends of the first virtual electrode DSE1 that overlap with the second light control elements L22 and L32 and the second light control elements L22 and L32 together may limit the propagation direction of the light emitted from the second light-emitting elements EL22 and EL32 within the cut-off angle and block light leakage.

[0146] The first virtual electrode DSE1 may have a pattern shape including a portion having the maximum length in the first direction X in the non-light-emitting region adjacent to the sensor electrode SE along the first direction X and a portion having the minimum length in the first direction X in the non-light-emitting region between the first light control elements L11 of the first type sub-pixels SP1 adjacent to each other along the first direction X.

[0147] The ends of the first virtual electrode DSE1 and the second virtual electrode DSE2 in the second direction Y overlap with the portions of the first light control elements L21 and L31 that do not overlap with the first light-emitting elements EL21 and EL31. Thus, the direction of the light emitted from the first light-emitting elements EL21 and EL31 together with the first light control elements L21 and L31 may be limited within the cut-off angle and light leakage may be prevented.

[0148] The second virtual electrode DSE2 may have the following pattern shape: including a portion having a maximum length in the first direction X in a non-light-emitting region adjacent to the first light control element L31 of the third type sub-pixel SP3 along the second direction Y, and a portion having a minimum length in the first direction X in a non-light-emitting region adjacent to the first light control element L21 of the second type sub-pixel SP2 along the second direction Y.

[0149] Referring to Figure 9 and 11 , the touch sensor array may further include a black matrix BM disposed in the non-light-emitting region of the pixel array.

[0150] The black matrix BM may include: a first opening BH1 that overlaps with the first light-emitting elements EL1: EL11, EL21, and EL31; and a second opening BH2 that overlaps with the second light-emitting elements EL2: EL12, EL22, and EL32. The size of the first opening BH1 of the black matrix BM may be larger than the size of the light-emitting regions of the second light-emitting elements EL2: EL12, EL22, and EL32, and may be smaller than or larger than the size of the light-incident surfaces of the second light control elements L2: L12, L22, and L32. The size of the second opening BH2 of the black matrix BM may be larger than the size of the light-emitting regions of the first light-emitting elements EL1: EL11, EL21, and EL31, and may be smaller than or larger than the size of the light-incident surfaces of the first light control elements L1: L11, L21, and L31.

[0151] In an embodiment, the size of the first opening BH1 of the black matrix BM may be different for each sub-pixel in proportion to the size of the light-emitting regions of the first light-emitting elements EL11, EL21, and EL31 and the size of the first light control elements L11, L21, and L31. In an embodiment, the size of the second opening BH2 of the black matrix BM may be different for each sub-pixel in proportion to the size of the light-emitting regions of the second light-emitting elements EL12, EL22, and EL32 and the size of the second light control elements L12, L22, and L32.

[0152] The end portions of the black matrix BM adjacent to or overlapping with the first light control elements L1:L11, L21, and L31, and either the sensor electrode SE or the dummy electrode DSE can, together with the first light control elements L1:L11, L21, and L31, limit the radiation angle of the light emitted from the first light-emitting elements EL1:EL11, EL21, and EL31 within a cut-off angle in the second direction Y, and can block leakage light and reflected light to prevent light leakage. The end portions of the black matrix BM adjacent to or overlapping with the second light control elements L2:L12, L22, and L32, and either the sensor electrode SE or the dummy electrode DSE can, together with the second light control elements L2:L12, L22, and L32, limit the radiation angle of the light emitted from the second light-emitting elements EL2:EL12, EL22, and EL32 within a cut-off angle in the first direction X and the second direction Y, and can block leakage light and reflected light to prevent light leakage.

[0153] The sensor electrode SE, the dummy electrode DSE, the bridge electrode BE, and the black matrix BM of the touch sensor array can be disposed in the non-light-emitting region to serve as a light-blocking barrier.

[0154] In an embodiment, the end portions of the sensor electrode SE and the dummy electrode DSE may not overlap with the portions of the first light control elements L1:L11, L21, and L31 that are parallel and adjacent to the first light-emitting elements EL1:EL11, EL21, and EL31 in the first direction X. Therefore, the end portions of the sensor electrode SE and the dummy electrode DSE do not limit the radiation angle of the light emitted from the first light-emitting elements EL1:EL11, EL21, and EL31, so that the first light control elements L1:L11, L21, and L31 can ensure wide viewing angle characteristics. The first overlapping portion may be separated from the end portion of the light-emitting region of the first light-emitting element EL1 in the second direction Y, where in the first overlapping portion, the end portion of either the sensor electrode SE or the dummy electrode DSE overlaps with the end portion of the first light control element L1 in the second direction Y. The second overlapping portion may be separated from the end portion of the light-emitting region of the first light-emitting element EL1 in the second direction Y, where in the second overlapping portion, the end portion of the black matrix BM overlaps with the end portion of the first light control element L1 in the second direction Y. The area of the first overlapping portion may be greater than or less than the area of the second overlapping portion. The length of the first overlapping portion in the first direction X may be greater than the length of the first light-emitting element EL1 in the first direction X. The third overlapping portion may be separated from the end portion of the light-emitting region of the first light-emitting element EL1, where in the third overlapping portion, the end portion of either the sensor electrode SE or the dummy electrode DSE overlaps with the end portion of the second light control element L2. The fourth overlapping portion may be separated from the end portion of the light-emitting region of the second light-emitting element EL2, where in the fourth overlapping portion, the end portion of the black matrix BM overlaps with the end portion of the second light control element L2. The area of the third overlapping portion may be greater than or less than the area of the fourth overlapping portion.

[0155] In the display panel 100 according to the embodiment, by arranging a plurality of contact portions CNT of the touch sensor array in the non-light-emitting region of the first-type sub-pixel SP1 having a relatively minimum light-emitting region area, the light-emitting regions of the second- and third-type sub-pixels SP2 and SP3 and the regions of the light control elements L1 and L2 can be sufficiently ensured to improve the brightness.

[0156] The plurality of contact portions CNT can be disposed in the non-light-emitting region between the second light-emitting elements EL12 of the first-type sub-pixels SP1 adjacent to each other in the second direction Y. Any one of the contact portions CNT can be disposed in the non-light-emitting region between the first light-emitting elements EL21 of the second-type sub-pixels SP2 adjacent to each other in the first direction X. Any one of the contact portions CNT can be disposed in the non-light-emitting region between the first light-emitting elements EL31 of the third-type sub-pixels SP3 adjacent to each other in the first direction X.

[0157] Figure 12 is a cross-sectional view illustrating an example of the structure of a sub-pixel region taken along line I-I' in the pixel region shown. Figure 11

[0158] Refer to Figure 12 , the display panel 100 according to the embodiment may include: a pixel array 140 including a circuit element layer 120 provided on a substrate 110 and a light-emitting element layer 130 provided on the circuit element layer 120; a package layer 150 provided on the pixel array 140 to seal the light-emitting element layer 130; a touch sensor array 160 provided on the package layer 150; and a light control array 170 provided on the touch sensor array 160. The display panel 100 may further include: a polarizing plate POL, an optical clear adhesive (OCA) 180, a cover substrate 190, etc. provided on the light control array 170.

[0159] Will refer to Figure 12 Describe, as an example, the cross-sectional structure of the second-type sub-pixel SP2 among the first to third-type sub-pixels SP1, SP2, and SP3 in the display panel 100 according to the embodiment. The first to third-type sub-pixels SP1, SP2, and SP3 may have the same cross-sectional structure.

[0160] Each sub-pixel SP may include: a first transistor TFT1 and a second transistor TFT2 of a pixel circuit 10; a first light-emitting element EL1 connected to the first transistor TFT1; a second light-emitting element EL2 connected to the second transistor TFT2; a first light control element L1 overlapping with the light-emitting region EA1 on the first light-emitting element EL1; and a second light control element L2 overlapping with the light-emitting region EA2 on the second light-emitting element EL2. The first transistor TFT1 may correspond to Figure 6 ​The eighth switching transistor T8 shown, the second transistor TFT2 may correspond to the sixth switching transistor T6.

[0161] 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.

[0162] 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 among acrylic resin, epoxy resin, silicone resin, polyimide resin, and polyamide resin.

[0163] The buffer layer 121 may have a single-layer or multi-layer structure including an inorganic insulating material such as silicon oxide (SiOx), silicon nitride (SiNx), or aluminum oxide (Al2O3). The buffer layer 121 may prevent impurities such as hydrogen from being introduced into the semiconductor layer 221 via the substrate 110.

[0164] A plurality of transistors including the switching transistors T8 and T6 may be disposed on the buffer layer 121.

[0165] In an embodiment, the buffer layer 121 may include a multi-buffer layer and an active buffer layer. In this case, the multi-buffer layer may be disposed on the substrate 110, and the active buffer layer may be disposed on the multi-buffer layer. A light blocking layer may be disposed between the multi-buffer layer and the active buffer layer.

[0166] Each of the transistors TFT1 and TFT2 includes a semiconductor layer 221, a gate 223, a source 225, and a drain 227 disposed on the buffer layer 121. The gate insulating layer 122 is disposed between the semiconductor layer 221 and the gate 223. The interlayer insulating layer 123 is disposed between the gate 223 and the source 225 and the drain 227. The source 225 and the drain 227 of each of the transistors TFT1 and TFT2 may be connected to the source region and the drain region of the semiconductor layer 221 via contact holes penetrating the interlayer insulating layer 123 and the gate insulating layer 122, respectively.

[0167] The semiconductor layer 221 may include polysilicon or may include an oxide semiconductor material. The semiconductor layer 221 may include low-temperature polysilicon (LTPS). The semiconductor layer 221 may include at least one oxide semiconductor material among IZO (InZnO)-based, IGO (InGaO)-based, ITO (InSnO)-based, IGZO (InGaZnO)-based, IGZTO (InGaZnSnO)-based, GZTO (GaZnSnO)-based, GZO (GaZnO)-based, and ITZO (InSnZnO)-based. A light-shielding layer (not shown) may be further provided under the semiconductor layer 221.

[0168] The gate insulating layer 122 may include an inorganic insulating material such as silicon oxide (SiOx) and silicon nitride (SiNx). The gate insulating layer 122 may include a material having a high dielectric constant. For example, the gate insulating layer 122 may include a high-K material such as hafnium oxide (HfO). The gate insulating layer 122 may have a multilayer structure.

[0169] The gate 223 and the gate line may be provided on the gate insulating layer 122.

[0170] The interlayer insulating layer 123 may include an inorganic insulating material such as silicon oxide (SiOx) and silicon nitride (SiNx). The interlayer insulating layer 123 may have a multilayer structure.

[0171] The source 225, the drain 227, the data line, and the power line may be provided on the interlayer insulating layer 123.

[0172] The protective layer 124 and the planarization layer 125 may be stacked on the transistors TFT1 and TFT2. The protective layer 124 may include an inorganic insulating material such as silicon oxide (SiOx) and silicon nitride (SiNx). The planarization layer 125 may include an organic insulating material different from the protective layer 124 and may provide a planar surface. The planarization layer 125 may have a bilayer structure.

[0173] The light-emitting element layer 130 including the light-emitting elements EL1 and EL2 may be provided on the planarization layer 125.

[0174] Each of the first and second light-emitting elements EL1 and EL2 may include: an anode 321 provided on the planarization layer 125; a light-emitting layer 322 provided on the anode 321; and a common cathode 323 provided on the light-emitting layer 322.

[0175] The anode 321 of the first light-emitting element EL1 can be connected to either the source 225 or the drain 227 of the transistor TFT1 via a contact hole penetrating the planarization layer 125 and the protective layer 124. The anode 321 of the second light-emitting element EL2 can be connected to either the source 225 or the drain 227 of the transistor TFT2 via a contact hole penetrating the planarization layer 125 and the protective layer 124.

[0176] The anode 321 can include a conductive material having a high reflectivity. The anode 321 can include metals such as aluminum (Al), silver (Ag), titanium (Ti), and silver-palladium-copper (APC) alloy. The anode 321 can further include a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO). In an embodiment, the anode 321 can have a multi-layer structure of titanium (Ti) and aluminum (Al) (Ti / Al / Ti), a multi-layer structure of ITO and aluminum (Al) (ITO / Al / ITO), or a multi-layer structure of ITO and APC (ITO / APC / ITO).

[0177] The light-emitting layer 322 can include a light-emitting material layer (EML) containing a light-emitting material. The light-emitting material can include an organic material, an inorganic material, or a hybrid material. The light-emitting layer 322 can have a multi-layer structure. In an embodiment, the light-emitting layer 322 can 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).

[0178] The cathode 323 can be a common electrode and can include a conductive material that transmits light. The cathode 323 can include a transparent conductive material such as ITO or IZO. The cathode 323 can include aluminum (Al), magnesium (Mg), silver (Ag), or an alloy thereof, and can have a thin thickness capable of transmitting light.

[0179] The bank insulating layer 132 can be located on the anodes 321 of the first and second light-emitting elements EL1 and EL2. The anodes 321 of the first and second light-emitting elements EL1 and EL2 are separated from each other, and the bank insulating layer 132 can be located between the anodes 321 of the first and second light-emitting elements EL1 and EL2. The bank insulating layer 132 can cover the edges of the anode 321. The bank insulating layer 132 can include an organic insulating material. The bank insulating layer 132 can include an organic material different from the planarization layer 125 and can have a single-layer or double-layer structure. A spacer can be further provided on the bank insulating layer 132.

[0180] The bank insulation layer 132 may include a plurality of openings, and anodes 321 of the first and second light-emitting elements EL1 and EL2 are exposed through the openings to define a plurality of light-emitting regions EA1 and EA2. A light-emitting layer 322 and a cathode 323 of the first and second light-emitting elements EL1 and EL2 may be stacked on the anode 321 exposed through the openings of the bank insulation layer 132.

[0181] The encapsulation layer 150 may be located on the light-emitting element layer 130 including the first and second light-emitting elements EL1 and EL2. The encapsulation layer 150 may prevent damage to the light-emitting elements EL21 and EL22 due to external moisture and collision. The encapsulation layer 150 may have a multi-layer structure. In an embodiment, the encapsulation layer 150 may include a first encapsulation layer 152, a second encapsulation layer 154, and a third encapsulation layer 156 stacked in sequence, but is not limited thereto. The first encapsulation layer 152, the second encapsulation layer 154, and the third encapsulation layer 156 may include an insulating material. The second encapsulation layer 154 may include a material different from the first encapsulation layer 152 and the third encapsulation layer 156. For example, the first encapsulation layer 152 and the third encapsulation layer 156 are inorganic encapsulation layers including an inorganic insulating material, and the second encapsulation layer 154 may include an organic encapsulation layer including an organic insulating material. Therefore, damage to the light-emitting elements EL1 and EL2 of the display device due to external moisture and collision can be more effectively prevented.

[0182] The touch sensor array 160 may include: a first touch insulation layer 162 disposed on the encapsulation layer 150; a bridging electrode BE disposed on the first touch insulation layer 162; a second touch insulation layer 164 covering the bridging electrode BE; a black matrix BM disposed on the second touch insulation layer 164; a third touch insulation layer 166 covering the black matrix BM; a dummy electrode DSE and a sensor electrode SE disposed on the third touch insulation layer 166; and a fourth touch insulation layer 168 covering the sensor electrode SE and the dummy electrode DSE. The bridging electrode BE, the black matrix BM, the sensor electrode SE, and the dummy electrode DSE may be disposed in a non-light-emitting region overlapping with the bank insulation layer 132.

[0183] An end of at least one of the sensor electrode SE, the dummy electrode DSE, and the black matrix BM may overlap an end of the first and second light control elements L1 and L2 in the non-light-emitting region.

[0184] The light control array 170 may include light control elements L1 and L2 disposed on the touch sensor array 160 and a protective layer 172 covering the light control elements L1 and L2.

[0185] The first light control element L1 is disposed on the light-emitting region EA1 of the first light-emitting element EL1, and the second light control element L2 is disposed on the light-emitting region EA2 of the second light-emitting element EL2 to control the path of light generated in the light-emitting regions EA1 and EA2.

[0186] The first light control element L1 can control the path of light generated in the light emitting region EA1 of the first light emitting element EL1 to have a wider viewing angle in the first direction X and a narrower viewing angle in the second direction Y. The second light control element L2 can control the path of light generated in the light emitting region EA2 of the second light emitting element EL22 to have a narrower viewing angle in both the first direction X and the second direction Y.

[0187] The protective layer 172 covering the light control elements L1 and L2 may include an organic insulating material. The refractive index of the protective layer 172 may be less than the refractive indices of the light control elements L1 and L2. Therefore, due to the refractive index difference with the protective layer 172, the light passing through the light control elements L1 and L2 is not reflected toward the substrate 110.

[0188] Figure 13 is a cross-sectional view illustrating another structural example of a sub-pixel region according to an embodiment of the present invention.

[0189] In Figure 13 compared with Figure 12 except that the width of the black matrix BMa is greater than the widths of the sensor electrode Sea and the dummy electrode DSE, other components are the same, and thus the description of the same components will be omitted.

[0190] Referring to Figure 12 and 13 , in the touch sensor array 160, the widths of the black matrices BM and BMa may be less than or greater than the widths of each of the sensor electrodes SE and SEa and the dummy electrode DSE. The size of the opening of the black matrices BM and BMa may be greater than or equal to the size of the opening of any one of the sensor electrodes SE and SEa and the dummy electrode DSE. The overlapping area of the black matrices BM and BMa with the light control elements L1 and L2 may be less than or greater than the overlapping area of the sensor electrodes SE and SEa and the dummy electrode DSE with the light control elements L1 and L2.

[0191] Figure 14 is an enlarged plan view illustrating a structural example of a contact portion in the pixel region shown in Figure 11 , Figure 15 is a cross-sectional view illustrating a structural example of a contact portion taken along the line II-II' shown in Figure 14 .

[0192] Referring to Figure 14 and 15 , in the contact portion CNT, the sensor electrode SE may be electrically connected to the bridging electrode BE via the contact holes CH1, CH2, and CH3 of the touch insulating layers 164 and 166.

[0193] The bridging electrode BE may be disposed on the first touch insulating layer 162.

[0194] The second touch insulating layer 164 having the first contact hole CH1 exposing the bridging electrode BE may be disposed on the first touch insulating layer 162 on which the bridging electrode BE is disposed.

[0195] The black matrix BM having the opening BH2 larger than the first contact hole CH1 may be disposed on the second touch insulating layer 164. The size of the opening BH3 of the black matrix BM in the contact portion CNT may be larger than the size of the bridging electrode BE. The width of the opening BH3 of the black matrix BM in the second direction Y may be larger than the width of the bridging electrode BE.

[0196] The third touch insulating layer 166 having the second contact hole CH2 and the third contact hole CH3 may be disposed on the second touch insulating layer 164 on which the black matrix BM is disposed. The size of the third contact hole CH3 may be larger than the size of the second contact hole CH2. The second contact hole CH2 and the third contact hole CH3 having different sizes in the third touch insulating layer 166 may be formed using a halftone mask process.

[0197] The sensor electrode SE is disposed on the third touch insulating layer 166 and may be connected to the bridging electrode BE via the contact holes CH1, CH2, and CH3. The sensor electrode SE may be set in a gentle step form through the contact holes CH1, CH2, and CH3 having different sizes, and may be set in a gentle step form even in the relatively thick third touch insulating layer 166, thereby preventing disconnection of the sensor electrode SE.

[0198] Figure 16A and 16B FIG. is a diagram comparing the light traveling paths in the subpixel regions of the display panel according to the comparative example and the embodiment of the present invention; Figure 17 FIG. is a graph illustrating the light leakage reduction effect of the display device according to the embodiment of the present invention compared to the comparative example.

[0199] 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. The pitch between the light emitting elements EL2 of adjacent subpixels may have a first pitch of 24 μm. The size of the opening of the first barrier B1 overlapping the light control element L2 may be smaller than the size of the opening of the second barrier B2 overlapping the light control element L2.

[0200] Referring to Figure 16A and 17, in the display panel according to the comparative example, the light 51 radiated from the light-emitting region EA2 of the light-emitting element EL2 and propagating along the first optical path can be restricted within the cut-off angle (±30°) by the barriers B1 and B2 and the light control element L1, and the leakage light 52 of the second optical path having a relatively small radiation angle can be blocked by the second barrier B2. However, due to the insufficient first pitch of 24 μm between the light-emitting elements EL2 of adjacent sub-pixels, the leakage light 53 of the third optical path having a relatively large radiation angle may occur, and the reflected light 54 of the fourth optical path reflected by the second barrier B2 and the adjacent light-emitting element EL2 may occur, indicating that light leakage occurs at a viewing angle (±65° to 80°) greater than the cut-off angle (±30°).

[0201] On the other hand, referring to Figure 16B , 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 that overlap with the ends of the light control element L2. The black matrix BM may include a black resin material for blocking reflected light, and the pitch between the light-emitting elements EL2 of adjacent sub-pixels can be ensured to be greater than the first pitch of 24 μm, for example, the second pitch of 28 μm. The size of the opening of the black matrix BM overlapping with the light control element L2 may be smaller or larger than the size of the opening of the sensor electrodes SE or dummy electrodes DSE overlapping with the light control element L2.

[0202] Referring to Figure 16B and 17 , in the display panel according to the embodiment, the light 51 radiated from the light-emitting region EA2 of the light-emitting element EL2 and propagating along the first optical path can be restricted within the cut-off angle (±30°) by the barriers B1 and B2 and the light control element L1. Due to the sufficient second pitch of 28 μm between the light-emitting elements EL2 of adjacent sub-pixels, the leakage light 52 of the second optical path having a relatively large radiation angle can be blocked by the sensor electrodes SE or dummy electrodes DSE, the leakage light 53 of the third optical path having a relatively large radiation angle can also be blocked by the black matrix BM, and the light propagating along the fourth optical path is reflected by the black matrix BM, indicating that light leakage at a viewing angle greater than the cut-off angle (±30°) is blocked.

[0203] Figure 18 and 19 are schematic cross-sectional views showing the sub-pixel structure of the display panel according to an embodiment of the present invention.

[0204] Referring to Figure 18 and 19, a sub - pixel according to an embodiment may include: a light - emitting element layer 130 including light - emitting elements EL1 and EL2; a packaging layer 150 disposed on the light - emitting element layer 130; a touch - sensor array 160 including a black matrix BM, a sensor electrode SE, and a dummy electrode DSE stacked on the packaging layer 150; and a light - control array 170 including light - control elements L1 and L2 disposed on the touch - sensor array 160.

[0205] Referring to Figure 18 , to improve light efficiency, the second light - control element L2 may have a light - incident surface larger than the size of the light - emitting area EA2 so as to overlap with the light - emitting area EA2 of the second light - emitting element EL2 and with the non - light - emitting area surrounding the light - emitting area EA2. To block light leakage, the size of the opening of the black matrix BM disposed in the non - light - emitting area may 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 may not overlap or may overlap with the end of the second light - control element L2. To block light leakage, the size of the opening of the sensor electrode SE or the dummy electrode DSE disposed in the non - light - emitting area may 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 the dummy electrode DSE may overlap with the end of the second light - control element L2. Accordingly, the second light - control element L2 may limit the cut - off angles of the light emitted from the second light - emitting element EL2 with respect to the first direction X and the second direction Y to specific values, thereby ensuring narrow - viewing - angle characteristics in the second direction Y.

[0206] In a second - type sub - pixel SP2 according to an embodiment (see Figure 11 ), 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 bank insulating layer 132 that determines the light - emitting area EA2 of the second light - emitting element EL2 may be set to about 16 μm. Accordingly, the sensor electrode SE may block light leakage from the second light - emitting element EL2 and may ensure the area of the sensor electrode SE in the non - light - emitting area to improve touch - sensing sensitivity.

[0207] Referring to Figure 18 and 19 , to improve light efficiency, the first light - control element L1 may have a light - incident surface larger than the size of the light - emitting area EA1 so as to overlap with the light - emitting area EA1 of the first light - emitting element EL1 and with the non - light - emitting area surrounding the light - emitting area EA1. To ensure wide - viewing - angle characteristics in the first direction X, the first control element L1 may not overlap with the black matrix BM, the sensor electrode SE, or the dummy electrode DSE in the non - light - emitting area in the first direction X.

[0208] In an embodiment, the distance D2 in the first direction X between the end of the first light control element L1 and the end of the bank insulating layer 132 that defines the light-emitting region EA1 of the first light-emitting element EL1 can be set to approximately 15 μm. Thus, the first light control element L1 can not only block light leakage from the second light-emitting element EL2, but also increase the cut-off angle in the first direction X to ensure wide viewing angle characteristics in the first direction X.

[0209] Referring to Figure 19 , in one embodiment, the length in the first direction X between the ends of the sensor electrode SE or the dummy electrode DSE that overlap with the end of the first light control element L1 in the second direction Y can be longer than the length of the light-emitting region of the first light-emitting element EL1 in the first direction. In one embodiment, the distance D3 in the first direction X between the end of the sensor electrode SE or the dummy electrode DSE that overlap with the end of the first light control element L1 in the second direction Y and the end of the light-emitting region (the end of the bank insulating layer) can be set to approximately 5 μm. Thus, diagonal light leakage caused by light propagating in a diagonal direction emitted from the first light-emitting element EL1 can be blocked, and the touch sensing sensitivity can be improved by ensuring the area of the sensor electrode SE or the dummy electrode DSE in the non-light-emitting region as large as possible.

[0210] In an embodiment, the distance in the second direction Y between the end of the first light control element L1 in the second direction Y and the end of the sensor electrode SE or the dummy electrode DSE in the second direction Y can be set to approximately 2 μm. Thus, the first light control element L1 can limit the cut-off angle of the light emitted from the first light-emitting element EL1 with respect to the second direction Y within a specific value to ensure narrow viewing angle characteristics in the second direction Y.

[0211] Figure 20 is a graph illustrating the viewing angle cut-off ratio enhancement effect of a display device according to an embodiment of the present invention.

[0212] Referring to Figure 20 , in the display device according to an embodiment, when the pitch between adjacent second light-emitting elements that emit light in the privacy mode is less than or equal to 26 μm, the cut-off ratio of red light R and blue light B within the cut-off angle (30 degrees to 60 degrees) in the first direction (X, L / R) can block light leakage at 0%, while the cut-off ratio of green light G can be 0.6% to 0.7%, indicating that weak light leakage may occur.

[0213] In an embodiment, when the pitch between the second light-emitting elements of adjacent sub-pixels that are emitting light in the privacy mode is 28 μm or greater, it can be seen that the cut-off ratio of red light R, green light G, and blue light G within the cut-off angle (30 degrees to 60 degrees) in the first direction (X, L / R) can block light leakage to 0%.

[0214] Figure 21A and 21B is a graph illustrating the color difference reduction effect of the display device according to the embodiment as compared with the comparative example.

[0215] In the display devices according to the comparative example and the embodiment, the light control elements L1 and L2 may have a refractive index difference based on the light wavelength. For example, in the first and second lenses that are the light control elements L1 and L2, the refractive index of blue light B having a center wavelength of 450 nm may be 1.68, the refractive index of green light G having a center wavelength of 550 nm may be 1.65, and the refractive index of red light R having a center wavelength of 650 nm may be 1.63.

[0216] Referring to Figure 21A , 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 without considering color, near the cut-off angle (30°) of the viewing angle, the brightness reduction rate of blue light B increases compared with the brightness reduction rate of red light R, resulting in color differences such as yellowing.

[0217] On the other hand, referring to Figure 21B , in the display device according to the embodiment, the first light-emitting elements (see EL11, EL21, EL31 in Figure 10 ) and the second light-emitting elements (see EL12, EL22, EL32 in Figure 10 ) of the red, green, and blue sub-pixels may have different light-emitting areas for each color. In the embodiment, the size of the light-emitting region may increase in the order of red, green, and blue sub-pixels in the same order as the refractive index order of red / green / blue light R / G / B of the lenses that are the light control elements L1 and L2. Therefore, it can be seen that near the cut-off angle of 30°, the brightness reduction rate of blue light B decreases compared with the brightness reduction rate of red light R, thereby minimizing color differences such as yellowing, and thus improving display performance such as display quality.

[0218] Therefore, the present invention can have the following advantages.

[0219] According to an embodiment of the present invention, a display device according to the embodiment can not only control the viewing angle according to user requirements by separately driving the light-emitting elements of each sub-pixel, but also appropriately arrange a black matrix, sensor electrodes, and virtual electrodes serving as light barriers in the touch sensor array to overlap and not overlap with the light control elements in the non-light-emitting region, thereby ensuring narrow viewing angle characteristics and wide viewing angle characteristics according to the viewing angle control, and can improve display performance such as brightness and display quality by blocking light leakage caused by light leakage and reflected light.

[0220] According to an embodiment of the present invention, a display device according to the embodiment can improve the touch sensing sensitivity by ensuring a sufficiently large area of the sensor electrodes and virtual electrodes provided in the non-light-emitting region in the touch sensor array, thereby improving the touch sensing performance.

[0221] According to an embodiment of the present invention, a display device according to the embodiment can improve display performance such as display quality by distinguishing the size of the light-emitting region for each wavelength band and minimizing color differences such as yellowing near the cut-off angle of the viewing angle caused by the refractive index difference of the light control element for each wavelength.

[0222] According to an embodiment of the present invention, a display device according to the embodiment can also achieve a low power consumption effect by improving the touch sensing performance and display performance.

[0223] A display device according to some aspects may include: a pixel array including a pixel circuit and a plurality of sub-pixels, the plurality of sub-pixels including a first light-emitting element and a second light-emitting element connected to the pixel circuit; a package layer provided 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, sensor electrodes, and virtual electrodes provided on the package layer and overlapping with a non-light-emitting region of the pixel array; and a light control array provided on the touch sensor array, the light control array including a first light control element overlapping with the first light-emitting element and a second light control element overlapping with the second light-emitting element, wherein the sensor electrodes may be provided in the non-light-emitting region of the first type of sub-pixels among the plurality of sub-pixels, and the virtual electrodes may be provided in the non-light-emitting regions of the second type of sub-pixels and the third type of sub-pixels among the plurality of sub-pixels.

[0224] In a display device according to some aspects, the pixel array may include a first column line and a second column line adjacent to each other in a first direction, where the first column line may include a plurality of first-type sub-pixels arranged along a second direction different from the first direction, the second column line may include a plurality of second-type sub-pixels and third-type sub-pixels in which the second-type sub-pixels and the third-type sub-pixels are alternately arranged along the second direction, the first-type sub-pixels may be disposed 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 may be disposed 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.

[0225] In a display device according to some aspects, the first-type sub-pixels may include: a first-1 light-emitting element having a first-1 light-emitting region, the first-1 light-emitting region having a structure with a length in the first direction longer than a length in the second direction; and a plurality of first-2 light-emitting elements having a plurality of first-2 light-emitting regions, the first-2 light-emitting elements having a size smaller than the first-1 light-emitting region, and the plurality of first-2 light-emitting regions being separated in the second direction and having the first-1 light-emitting element interposed therebetween, where the plurality of first-2 light-emitting elements may share an anode connected to a pixel circuit of the first-type sub-pixels.

[0226] In a display device according to some aspects, the second-type sub-pixels may include: a second-1 light-emitting element having a second-1 light-emitting region, the second-1 light-emitting region having a structure with a length in the first direction longer than a length in the second direction; and a plurality of second-2 light-emitting elements having a plurality of second-2 light-emitting regions, the second-2 light-emitting elements having a size smaller than the second-1 light-emitting region, and the plurality of second-2 light-emitting regions being separated from the second-1 light-emitting element in the second direction, where the plurality of second-2 light-emitting elements may be arranged in parallel in the first direction, and the plurality of second-2 light-emitting elements may share an anode connected to a pixel circuit of the second-type sub-pixels.

[0227] In a display device according to some aspects, the third type of sub-pixel may include: a 3-1 light-emitting element having a 3-1 light-emitting region with a structure in which the length in the first direction is longer than the length in the second direction; and a plurality of 3-2 light-emitting elements each having a plurality of 3-2 light-emitting regions, the 3-2 light-emitting elements having a size smaller than that of the 3-1 light-emitting region, and the plurality of 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 may be arranged in parallel in the first direction, may be arranged adjacent to the plurality of 2-2 light-emitting elements in the second direction, and the plurality of 3-2 light-emitting elements may share an anode connected to the pixel circuit of the third type of sub-pixel.

[0228] In a display device according to some aspects, the light control array may include: a 1-1 light control element, a 2-1 light control element, and a 3-1 light control element that respectively overlap with the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element; 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 that respectively overlap with a plurality of 1-2 light-emitting elements, a plurality of 2-2 light-emitting elements, and a plurality of 3-2 light-emitting elements, wherein the size of the 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 may be larger than the size of the light incident surface of each of the 1-2 light control element, the 2-2 light control element, and the 3-2 light control element.

[0229] In a display device according to some aspects, the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element may have light-emitting regions with different sizes for each color, the plurality of 1-2 light-emitting elements, the plurality of 2-2 light-emitting elements, and the plurality of 3-2 light-emitting elements may have light-emitting regions with different sizes for each color, the 1-1 light control element, the 2-1 light control element, and the 3-1 light control element may have light incident surface sizes proportional to the sizes of the light-emitting regions of the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element, and the plurality of 1-2 light control elements, the plurality of 2-2 light control elements, and the plurality of 3-2 light control elements may have light incident surface sizes proportional to the sizes of the light-emitting regions of the plurality of 1-2 light-emitting elements, the plurality of 2-2 light-emitting elements, and the plurality of 3-2 light-emitting elements.

[0230] In a display device according to some aspects, the touch sensor array may include a plurality of sensor electrodes arranged along the first column line, wherein each of the plurality of sensor electrodes may be separated from another sensor electrode adjacent thereto in the second direction with the 1-1 light-emitting element interposed therebetween.

[0231] In a display device according to some aspects, each of the plurality of sensor electrodes may include: a first sensor electrode portion disposed in a non-light-emitting region around a plurality of 1-2 light-emitting elements of the first type of sub-pixel; a second sensor electrode portion disposed in a non-light-emitting region around a plurality of 2-2 light-emitting elements of a second type of sub-pixel adjacent to the first type of sub-pixel and symmetric with the first sensor electrode portion in the second direction; and a third sensor electrode portion connecting the first sensor electrode portion to the second sensor electrode portion.

[0232] In a display device according to some aspects, the touch sensor array may further include a bridging electrode that overlaps the sensor electrode with a touch insulating layer interposed therebetween, wherein the bridging electrode may be connected to the first sensor electrode portion and the second sensor electrode portion via a plurality of contact portions, and the third sensor electrode portion may be disposed between the plurality of contact portions in the second direction.

[0233] In a display device according to some aspects, each of the first sensor electrode portion and the second sensor electrode portion may include: a first portion surrounding the second light-emitting element; and a second portion overlapping any one of the plurality of contact portions and having an area smaller than that of the first portion.

[0234] In a display device according to some aspects, the bridging electrode may include: a first bridging electrode portion and a second bridging electrode portion, wherein the first bridging electrode portion and the second bridging electrode portion extend from both sides of the first column line along the first column line to overlap the sensor electrode and the virtual electrode and are symmetric in the first direction; and a third bridging electrode portion connecting the first bridging electrode portion to the second bridging electrode portion in each of the plurality of contact portions.

[0235] In a display device according to some aspects, the first bridging electrode portion and the second bridging electrode portion extending along the first column line may have a pattern shape such that a mutual spacing in the first direction changes along the second direction.

[0236] In a display device according to some aspects, the first bridging electrode portion and the second bridging electrode portion extending along the first column line may overlap with the virtual electrode in a non-light-emitting region adjacent to the 1-1 light control element in the first direction with a maximum mutual pitch in the first direction, and may partially overlap with the sensor electrode in a non-light-emitting region provided between the plurality of contact portions, the 2-1 light control element, and the 3-1 light control element with a minimum mutual pitch in the first direction.

[0237] In a display device according to some aspects, the first bridging electrode portion and the second bridging electrode portion extending along the first column line may have an inclined pattern shape overlapping each other via the virtual electrode and the sensor electrode between the maximum mutual pitch and the minimum mutual pitch.

[0238] In a display device according to some aspects, each of the plurality of contact portions may include: a third bridging electrode portion provided on a first touch insulating layer provided on the encapsulation layer; a second touch insulating layer provided on the first touch insulating layer on which the third bridging electrode portion is provided and having a first contact hole exposing the third bridging electrode portion; a black matrix provided on the second touch insulating layer and having an opening portion larger than the first contact hole; a third touch insulating layer provided on the second touch insulating layer on which the black matrix is provided and provided with 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 the sensor electrode provided on the third touch insulating layer and connected to the third bridging electrode portion via the third contact hole, the second contact hole, and the first contact hole.

[0239] In a display device according to some aspects, the touch sensor array may include a plurality of virtual electrodes provided in a non-light-emitting region of the second column line, separated from sensor electrodes provided on the same layer, and electrically floating. The plurality of virtual electrodes may include: a first virtual electrode provided in a non-light-emitting region around the plurality of 2-2 light-emitting elements and the plurality of 3-2 light-emitting elements adjacent to each other in the second direction; and a second virtual electrode provided in a non-light-emitting region located between the 3-1 light-emitting element and the 2-1 light-emitting element adjacent to each other in the second direction.

[0240] In a display device according to some aspects, the first virtual electrode may have a pattern shape including a portion having a maximum length in the first direction in a non-light-emitting region adjacent to the sensor electrode in the first direction and a portion having a minimum length in the first direction in a non-light-emitting region located between the 1-1 light control elements adjacent in the first direction.

[0241] In a display device according to some aspects, the second virtual electrode may have a pattern shape including 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.

[0242] In a display device according to some aspects, the first light control element may, together with any one of the sensor electrode and the virtual electrode and the black matrix, limit the viewing angle of the light emitted from the first light-emitting element within a first cut-off angle in the second direction, and the second light control element may, together with any one of the sensor electrode and the virtual electrode and the black matrix, limit the viewing angle of the light emitted from the second light-emitting element within the first cut-off angle in the first direction and the second direction.

[0243] In a display device according to some aspects, a first overlapping portion is spaced apart from an end portion of the light-emitting region of the first light-emitting element in the second direction, a second overlapping portion is spaced apart from the end portion of the light-emitting region of the first light-emitting element 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, wherein in the first overlapping portion, an end portion of any one of the sensor electrode and the virtual electrode may overlap with an end portion of the first light control element in the second direction; in the second overlapping portion, an end portion of the black matrix may overlap with an end portion of the first light control element in the second direction.

[0244] In a display device according to some aspects, a first opening portion of any one of the sensor electrode and the virtual electrode and a second opening portion of the black matrix may overlap with the first light-emitting element and the first light control element, and the size of the first opening portion may be greater than or less than the size of the second opening portion.

[0245] In a display device according to some aspects, the length of the first overlapping portion in the first direction may be greater than the length of the first light-emitting element in the first direction, wherein in the first overlapping portion, an end portion of any one of the sensor electrode and the virtual electrode overlaps with an end portion of the first light control element in the second direction.

[0246] In a display device according to some aspects, a third overlapping portion may be separated from an end portion of a light-emitting region of the first light-emitting element, a fourth overlapping portion may be separated from an end portion of a light-emitting region of the second light-emitting element, and an area of the third overlapping portion may be greater than or less than an area of the fourth overlapping portion, wherein in the third overlapping portion, an end portion of any one of the sensor electrode and the dummy electrode overlaps with an end portion of the second light control element; and in the fourth overlapping portion, an end portion of the black matrix overlaps with an end portion of the second light control element.

[0247] In a display device according to some aspects, a third opening of any one of the sensor electrode and the dummy electrode and a fourth opening of the black matrix may overlap with the second light-emitting element and the second light control element, and a size of the third opening may be greater than or less than a size of the fourth opening.

[0248] In a display device according to some aspects, each of the 1-1 light-emitting element, the 2-1 light-emitting element, and the 3-1 light-emitting element may be connected to a first switching transistor provided in a pixel circuit of each of the first-type sub-pixel, the second-type sub-pixel, and the third-type sub-pixel and be controlled by a first mode signal; each of the 1-2 light-emitting element, the 2-2 light-emitting element, and the 3-2 light-emitting element may be connected to a second switching transistor provided in a pixel circuit of each of the first-type sub-pixel, the second-type sub-pixel, and the third-type sub-pixel and be controlled by a second mode signal; and the first switching transistor and the second switching transistor may be electrically connected to a driving transistor provided in a pixel circuit of each of the first-type sub-pixel, the second-type sub-pixel, and the third-type sub-pixel.

[0249] The above-described 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. In addition, the features, structures, and effects described in at least one embodiment of the present invention may be implemented by those of ordinary skill in the art through combination or modification with other embodiments. Therefore, the content related to combination and modification should be construed as falling within the scope of the present invention.

[0250] It will be apparent to those of ordinary skill in the art that various alternatives, modifications, and variations can be made within the scope of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention is represented by the appended claims, and all changes or modifications derived from the meaning, scope, and equivalent concepts of the claims should be construed as being included within the scope of the present invention.

Claims

1. A display device, comprising: a pixel array, the pixel array comprising a pixel circuit and a plurality of sub-pixels, the plurality of sub-pixels comprising a first light-emitting element and a second light-emitting element connected to the pixel circuit; an encapsulation layer, the encapsulation layer being 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, the touch sensor array comprising a black matrix, sensor electrodes, and dummy electrodes disposed on the encapsulation layer and overlapping a non-luminescent region of the pixel array; as well as A light control array is disposed on the touch sensor array, the 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, wherein the sensor electrode is disposed in a non-luminescent region of a first type of sub-pixel among the plurality of sub-pixels, The dummy electrode is disposed in non-light emitting regions of second-type sub-pixels and third-type sub-pixels among the plurality of sub-pixels.

2. The display device according to claim 1, wherein the pixel array comprises: a first column line and a second column line adjacent to each other in a first direction, wherein the first column line includes a plurality of first-type sub-pixels arranged along a second direction different from the first direction, The second column line includes a plurality of second-type sub-pixels and third-type sub-pixels in which the second-type sub-pixels and the third-type sub-pixels are alternately arranged along the second direction, The first type sub-pixel is disposed adjacent to the second type sub-pixel and the third type sub-pixel in the first direction, The second type sub-pixel and the third type sub-pixel are arranged adjacent to each other in the second direction, The first type sub-pixel, the second type sub-pixel, and the third type sub-pixel emit light of different colors, respectively.

3. The display device according to claim 2, wherein the first type sub-pixel comprises: A 1-1 light-emitting element having a 1-1 light-emitting region, wherein the 1-1 light-emitting region has a structure in which the length in the first direction is longer than the length in the second direction; as well as a plurality of 1-2 light emitting elements having a plurality of 1-2 light emitting regions, the 1-2 light emitting elements having a size smaller than the 1-1 light emitting region, and the plurality of 1-2 light emitting regions being separated in the second direction with the 1-1 light emitting elements interposed therebetween, The plurality of 1-2 light emitting elements share an anode connected to the pixel circuit of the first type sub-pixel.

4. The display device according to claim 3, wherein the second type sub-pixel comprises: A 2-1 light-emitting element having a 2-1 light-emitting region, wherein the 2-1 light-emitting region has a structure in which the length in the first direction is longer than the length in the second direction; as well as a plurality of 2-2 light-emitting elements having a plurality of 2-2 light-emitting regions, the 2-2 light-emitting elements having a size smaller than the 2-1 light-emitting region, and the plurality of 2-2 light-emitting regions being spaced apart from the 2-1 light-emitting element in the second direction, wherein the plurality of 2-2 light emitting elements are arranged in parallel in the first direction, The plurality of 2-2 light emitting elements share an anode connected to the pixel circuit of the second-type sub-pixel.

5. The display device according to claim 4, wherein the third type sub-pixel comprises: A 3-1 light-emitting element having a 3-1 light-emitting region, wherein the 3-1 light-emitting region has a structure in which the length in the first direction is longer than the length in the second direction; as well as a plurality of 3-2 light-emitting elements having a plurality of 3-2 light-emitting regions, the 3-2 light-emitting elements having a size smaller than the 3-1 light-emitting region, and the plurality of 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 in parallel in the first direction and are arranged adjacent to the plurality of 2-2 light emitting elements in the second direction, The plurality of 3-2 th light emitting elements share an anode connected to a pixel circuit of the third type sub-pixel.

6. The display device of 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 that are individually overlapped with the 1-1 light control element, the 2-1 light control element, and the 3-1 light control element; 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 that overlap the plurality of 1-2 light emitting elements, the plurality of 2-2 light emitting elements, and the plurality of 3-2 light emitting elements individually; Wherein the size of the 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 the light incident surface of each of the 1-2 light control element, the 2-2 light control element and the 3-2 light control element.

7. The display device according to claim 6, wherein: The 1-1st light emitting element, the 2-1st light emitting element, and the 3-1st light emitting element have light emitting areas having different sizes for each color, the plurality of 1-2 light emitting elements, the plurality of 2-2 light emitting elements, and the plurality of 3-2 light emitting elements have light emitting areas having different sizes for each color, The 1-1 light control element, the 2-1 light control element and the 3-1 light control element have light incident surface sizes proportional to the light emitting area sizes of the 1-1 light emitting element, the 2-1 light emitting element and the 3-1 light emitting element, The multiple 1-2nd light control elements, the multiple 2-2nd light control elements and the multiple 3-2nd light control elements have light incident surface sizes proportional to sizes of light emitting areas of the multiple 1-2nd light emitting elements, the multiple 2-2nd light emitting elements and the multiple 3-2nd light emitting elements.

8. The display device according to claim 6, wherein the touch sensor array comprises: a plurality of sensor electrodes arranged along the first column line, Each of the plurality of sensor electrodes is separated from another sensor electrode adjacent to the second direction with the 1-1th light emitting element interposed therebetween.

9. The display device according to claim 8, wherein each of the plurality of sensor electrodes comprises: a first sensor electrode portion, the first sensor electrode portion being disposed in a non-luminescent region around a plurality of first-second luminescent elements of the first type sub-pixel; a second sensor electrode portion, the second sensor electrode portion being disposed in a non-luminous region around a plurality of 2-2 luminous elements of a second type sub-pixel adjacent to the first type sub-pixel and symmetrical to the first sensor electrode portion in the second direction; as well as A third sensor electrode portion connects the first sensor electrode portion to the second sensor electrode portion.

10. The display device according to claim 8, wherein the touch sensor array further comprises: a bridging electrode overlapping the sensor electrode with a touch insulating layer interposed therebetween, wherein the bridge electrode is connected to the first sensor electrode portion and the second sensor electrode portion via a plurality of contact portions, The third sensor electrode portion is provided between the plurality of contact portions in the second direction.

11. The display device according to claim 10, wherein each of the first sensor electrode section and the second sensor electrode section comprises: a first portion surrounding the second light emitting element; as well as A second portion overlaps any one of the plurality of contact portions and has an area smaller than the first portion.

12. The display device according to claim 10, wherein the bridge electrode comprises: a first bridging electrode portion and a second bridging electrode portion, wherein the first bridging electrode portion and the second bridging electrode portion extend from both sides of the first column line along the first column line to overlap the sensor electrode and the dummy electrode, and are symmetrical in the first direction; as well as A third bridge electrode portion connects the first bridge electrode portion to the second bridge electrode portion in each of the plurality of contact portions. 13 . The display device according to claim 12 , wherein the first bridge electrode portion and the second bridge electrode portion extending along the first column line have a pattern shape in which a mutual interval in the first direction changes along the second direction.

14. The display device according to claim 13, wherein: The first bridging electrode portion and the second bridging electrode portion extending along the first column line overlap with the virtual electrode at a maximum mutual spacing in the first direction in a non-luminous area adjacent to the 1-1 light control element along the first direction, and partially overlap with the sensor electrode at a minimum mutual spacing in the first direction in a non-luminous area arranged between the multiple contact portions, the 2-1 light control element and the 3-1 light control element. 15 . The display device according to claim 14 , wherein the first bridge electrode portion and the second bridge electrode portion extending along the first column line have an inclined pattern shape overlapping each other via the dummy electrode and the sensor electrode between the maximum mutual interval and the minimum mutual interval.

16. The display device according to claim 12, wherein each of the plurality of contact portions comprises: The third bridging electrode portion is disposed on the first touch insulating layer on the encapsulation layer; a second touch insulating layer, the second touch insulating layer being disposed on the first touch insulating layer on which the third bridge electrode portion is disposed and having a first contact hole exposing the third bridge electrode portion; The black matrix is ​​disposed on the second touch insulating layer and has an opening larger than the first contact hole; a third touch insulating layer, the third touch insulating layer being disposed on the second touch insulating layer on which the black matrix is ​​disposed and being provided with a second contact hole that is larger than the first contact hole and smaller than the opening and a third contact hole that is larger than the opening; as well as The sensor electrode is disposed on the third touch insulation layer and connected to the third bridge electrode part via 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 column line, separated from the sensor electrodes disposed on the same layer, and electrically floating, The plurality of virtual electrodes include: a first dummy electrode disposed in a non-light emitting region around the plurality of 2-2 light emitting elements and the plurality of 3-2 light emitting elements adjacent to each other along the second direction; and A second dummy electrode is provided in a non-light emitting region between the 3-1st light emitting element and the 2-1st light emitting element adjacent to each other along the second direction.

18. A display device according to claim 17, wherein the first virtual electrode has the following pattern shape: including a portion having a maximum length in the first direction in a non-luminous area adjacent to the sensor electrode along the first direction and a portion having a minimum length in the first direction in a non-luminous area located between the 1-1 light control elements adjacent to each other along the first direction.

19. A display device according to claim 17, wherein the second virtual electrode has the following pattern shape: including a portion having a maximum length in the first direction in a non-luminous area adjacent to the 3-1 light control element along the second direction; and a portion having a minimum length in the first direction in a non-luminous area adjacent to the 2-1 light control element along the second direction.

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

21. The display device according to claim 1, wherein: A first overlapping portion is spaced apart from an end of a light emitting area of ​​the first light emitting element in the second direction, wherein in the first overlapping portion, an end of any one of the sensor electrode and the dummy electrode overlaps with an end of the first light control element in the second direction; A second overlapping portion is separated from an end of the light emitting area of ​​the first light emitting element in the second direction, wherein in the second overlapping portion, an end of the black matrix overlaps with an end of the first light control element in the second direction; An area of ​​the first overlapping portion is larger than or smaller than an area of ​​the second overlapping portion.

22. The display device according to claim 1, wherein a first opening portion of any one of the sensor electrode and the dummy electrode and a second opening portion of the black matrix overlap with the first light emitting element and the first light control element, The size of the first opening is larger or smaller than the size of the second opening.

23. A display device according to claim 1, wherein the length of the first overlapping portion in the first direction is greater than the length of the first light-emitting element in the first direction, and wherein in the first overlapping portion, the end of either the sensor electrode and the virtual electrode overlaps with the end of the first light control element in the second direction.

24. The display device according to claim 1, wherein a third overlapping portion is spaced apart from an end of a light emitting region of the first light emitting element, wherein in the third overlapping portion, an end of any one of the sensor electrode and the dummy electrode overlaps an end of the second light control element; A fourth overlapping portion is separated from an end of the light emitting area of ​​the second light emitting element, wherein in the fourth overlapping portion, an end of the black matrix overlaps an end of the second light control element; The area of ​​the third overlapping portion is larger than or smaller than the area of ​​the fourth overlapping portion.

25. The display device according to claim 1, wherein the third opening of any one of the sensor electrode and the dummy electrode and the fourth opening of the black matrix overlap with the second light emitting element and the second light control element, The size of the third opening is larger or smaller than the size of the fourth opening.

26. The display device according to claim 5, wherein: Each of the 1-1st light-emitting element, the 2-1st light-emitting element, and the 3-1st light-emitting element is connected to a first switching transistor provided in a pixel circuit of each of the first type sub-pixel, the second type sub-pixel, and the third type sub-pixel, and is controlled by a first mode signal; Each of the 1-2nd light emitting element, the 2-2nd light emitting element, and the 3-2nd light emitting element is connected to a second switch transistor provided in a pixel circuit of each of the first type sub-pixel, the second type sub-pixel, and the third type sub-pixel, and is controlled by a second mode signal; The first switching transistor and the second switching transistor are electrically connected to a driving transistor provided in a pixel circuit of each of the first type sub-pixel, the second type sub-pixel, and the third type sub-pixel. 27 . The display device according to claim 9 , wherein among the first sensor electrode section, the second sensor electrode section, and the third sensor electrode section, the third sensor electrode section has the smallest area. 28 . The display device according to claim 16 , wherein in the second direction, a width of the opening portion of the black matrix is ​​greater than a width of the bridge electrode.

29. The display device according to claim 1, wherein at least one of the sensor electrode, the dummy electrode, and the black matrix does not overlap with an end portion of the first light control element. 30 . The display device according to claim 1 , wherein a size of an opening portion of the black matrix is ​​larger than or equal to a size of an opening portion of any one of the sensor electrode and the dummy electrode.

31. The display device according to claim 1, wherein the black matrix comprises: a first opening portion overlapping the first light emitting element; as well as a second opening portion overlapping with the second light emitting element, The size of the first opening 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 of the black matrix is ​​larger than the size of the light-emitting area of ​​the first light-emitting element.

32. The display device according to claim 31, wherein the size of the first opening portion of the black matrix is ​​smaller than or larger than the size of the light incident surface of the second light control element, The size of the second opening of the black matrix may be smaller than or larger than the size of the light incident surface of the first light control element. 33 . The display device of claim 1 , wherein a width of the black matrix is ​​smaller than or larger than a width of each of the sensor electrode and the dummy electrode.

34. The display device of claim 1, wherein a pitch between second light emitting elements of adjacent sub-pixels is greater than 24 μm. 35 . The display device according to claim 2 , wherein a distance along the second direction between an end of the first light control element in the second direction and an end of the sensor electrode or the dummy electrode in the second direction is set to 2 μm.

Images