Display apparatus

Abstract

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

Description

Technical Field

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

Background Art

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

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

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

Summary of the Invention

Problems to be Solved by the Invention

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

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

Means for Solving the Problems

[0007] A display device according to an embodiment of the present specification includes a pixel circuit, a pixel array including a plurality of sub-pixels including a first light-emitting element and a second light-emitting element connected to the pixel circuit, a sealing layer disposed to seal a light-emitting element layer including the first and second light-emitting elements on the pixel array, a touch sensor array disposed on the sealing layer and including a black matrix, a sensor electrode, and a dummy electrode that overlap a non-light-emitting region of the pixel array, and a light control array disposed on the touch sensor array and including a first light control element that overlaps the first light-emitting element and a second light control element that overlaps the second light-emitting element. The sensor electrode is disposed in a non-light-emitting region of a first type of sub-pixel among the plurality of sub-pixels, and the dummy electrode can be disposed in non-light-emitting regions of a second type of sub-pixel and a third type of sub-pixel among the plurality of sub-pixels.

[0008] Specific matters according to various embodiments other than the solutions to the above-described problems are included in the following description and drawings.

[0009] A display device according to an embodiment can not only control the viewing angle according to the user's needs by driving the light-emitting elements of each sub-pixel separately, but also appropriately arrange the black matrix, the sensor electrode, and the dummy electrode, which function as a light barrier in the touch sensor array, to overlap and not overlap with the light control element in the non-light-emitting region, so as to ensure the narrow viewing angle characteristics and wide viewing angle characteristics by viewing angle control, and block light leakage due to leakage light and reflected light, thereby improving display performance such as luminance and display quality.

[0010] A display device according to an embodiment can improve the touch sensing sensitivity by maximizing the areas of the sensor electrode and the dummy electrode disposed in the non-light-emitting region of the touch sensor array, and thus can improve the touch sensing performance.

[0011] A display device according to an embodiment differentiates the size of a light-emitting region by wavelength, and minimizes a color difference such as yellowishness near a cut-off angle of a viewing angle due to a refractive index difference by wavelength of a light control element, thereby improving display performance such as display quality.

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

[0013] The effects obtained in this specification are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those having ordinary knowledge in the technical field to which this specification belongs from the following description.

Brief Description of the Drawings

[0014]

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[0015] The advantages and features of this specification, and the methods for achieving them, will become apparent by referring to the embodiments described in detail below together with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below, but can be embodied in various different forms, and the present embodiments are merely provided to make the disclosure of this specification complete and to fully inform those with ordinary knowledge in the technical field to which this specification belongs of the scope of the invention, and this specification is only defined by the scope of the claims.

[0016] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of this specification are exemplary, and this specification is not limited to the matters shown in the drawings. Throughout the specification, the same reference numerals refer to the same components. In the description of this specification, when it is determined that a specific description of related known technologies may unnecessarily obscure the gist of this specification, the detailed description thereof will be omitted. When terms such as "including", "having", "consisting of", etc. mentioned in this specification are used, other parts can be added unless "only" is used. When a component is expressed in the singular, it includes the case of including a plurality unless otherwise explicitly stated.

[0017] In interpreting components, even if there is no separate explicit description of the error range, it is interpreted as including the error range.

[0018] In the case of an explanation of the positional relationship, for example, when the positional relationship between two parts is explained by "on ~", "above ~", "below ~", "beside ~", etc., unless the expressions "immediately" or "directly" are used, one or more other parts can also be located between the two parts.

[0019] In the case of an explanation regarding the relationship of time, for example, when the temporal precedence relationship is explained using expressions such as "after ~", "subsequent to ~", "next to ~", "before ~", etc., unless the expressions "immediately" or "directly" are used, it can include cases that are not continuous.

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

[0021] In explaining the components of this specification, terms such as the first, second, A, B, a, b, etc. can be used. Such terms are only for distinguishing the component from other components, and the essence, order, sequence, or number of the component is not limited by the terms. When a component is described as being "connected", "coupled", or "linked" to another component, that component can be directly connected or linked to the other component, but it must be understood that other components can "intervene" between the components that can be indirectly connected or linked without specific explicit description.

[0022] The term "at least one" must be understood to include all combinations of one or more of the related components. For example, the meaning of "at least one of the first, second, and third components" can be considered to include not only the first, second, or third components alone, but also all combinations of two or more of the first, second, and third components.

[0023] The features of each of some embodiments of this specification can be partially or wholly combined or combined with each other, various interlocks and drives are technically possible, and each embodiment can be implemented independently of each other or can be implemented together in an associated relationship.

[0024] Hereinafter, the embodiments of this specification will be described in detail through the attached drawings and examples as follows. The scales of the components shown in the drawings have scales different from the actual ones for convenience of explanation, and thus are not limited to the scales shown in the drawings.

[0025] FIG. 1 is a diagram schematically showing the configuration of a display device according to an embodiment, FIG. 2 is a cross-sectional view schematically showing the structure of a display panel according to an embodiment, FIG. 3 is a diagram schematically showing the configuration of sub-pixels according to an embodiment, FIGS. 4A and 4B are diagrams illustrating the structures of first and second light control elements according to an embodiment, and FIG. 5 is a diagram illustrating a vehicle display device to which a display device according to an embodiment is applied.

[0026] A display device 1000 according to an embodiment can provide both a display function for displaying an image and a touch sensing function for sensing the presence or absence of a user's touch and / or touch coordinates.

[0027] A display device 1000 according to an embodiment can 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 can be an organic light emitting diode (OLED) display device, a quantum dot light emitting diode display device, or an inorganic light emitting diode display device.

[0028] Referring to FIG. 1, the display device 1000 can include a display panel 100, a display driving circuit 200 that drives the display panel 100, and a touch sensing circuit 300 that drives and senses a touch sensor array built in the display panel 100. The display device 1000 can further include a power management circuit that generates and supplies a plurality of power supply voltages necessary for the operations of the display panel 100, the display driving circuit 200, and the touch sensing circuit 300.

[0029] The display panel 100 can be a Rigid display panel or a Flexible display panel capable of shape deformation such as a Foldable, Bendable, Rollable, or Strechable display panel.

[0030] The display panel 100 can include a display area (DA) for displaying an image and a non-display area (NDA) that is a bezel area located in the outer periphery surrounding the display area (DA). The display panel 100 can further include a touch sensor array disposed in the display area (DA) to sense a user's touch.

[0031] The display panel 100 can display an image using a display area (DA) in which a plurality of sub-pixels are arranged in a matrix form. The pixel matrix of the display area (DA) can 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 can include a plurality of signal lines including a plurality of gate lines, a plurality of data lines, a plurality of power supply lines, etc. connected to the plurality of sub-pixels.

[0032] The plurality of sub-pixels can 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 can further include a white sub-pixel that emits white light. The unit pixel can include at least two sub-pixels.

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

[0034] The touch sensing circuit 300 can include a touch driving circuit that supplies a touch driving signal to a touch sensor array built in the display panel 100 and receives a lead-out signal from the touch sensor array to generate sensing data, a touch controller that detects the presence or absence of a touch and the touch coordinate position based on the sensing data supplied from the touch driving circuit, and the like.

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

[0036] According to an embodiment, the display panel 100 may be capable of controlling the viewing angle according to the viewing angle mode. The display area (DA) of the display panel 100 can display an image in a first viewing angle mode with a relatively wide viewing angle with respect to the first direction or a second viewing angle mode with a narrower viewing angle with respect to the first direction than the first viewing angle mode. The first viewing angle mode can be expressed as a wide viewing angle mode or a share mode. The second viewing angle mode can be expressed as a narrow viewing angle mode or a privacy mode. The display area (DA) of the display panel 100 can be driven in a switchable privacy mode (SPM) that can switch between the share mode and the privacy mode.

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

[0038] According to one embodiment, a touch sensor array 160 can include sensor electrodes, dummy electrodes, and a black matrix arranged to overlap non-emitting regions of light-emitting elements (EL1, EL2). At least any one of the sensor electrodes, dummy electrodes, and black matrix according to one embodiment can function as a barrier that overlaps an end portion of a light control element (L1, L2) to block light, thereby preventing light leakage due to leakage light or reflected light. At least any one of the sensor electrodes, dummy electrodes, and black matrix according to one embodiment can overlap an end portion of a light control element (L1) for a wide viewing angle to prevent limitation of the wide viewing angle. Specific description regarding this will be described later.

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

[0040] A sub-pixel (SP) according to one embodiment can drive the first light-emitting element (EL1) in a first viewing angle mode and emit light having a first viewing angle through the first light control element (L1). The sub-pixel (SP) can drive the second light-emitting element (EL2) in a second viewing angle mode and emit light having a second viewing angle narrower than the first viewing angle through the second light control element (L2).

[0041] Referring to FIG. 4A, the first light control element (L1) can have a semi-cylindrical lens structure that is long in the first direction (X), and is not limited to this lens structure. Referring to FIG. 4B, the second light control element (L2) can have a half-spherical lens structure, and is not limited to this lens structure. In one embodiment, the first light control element (L1) and the second light control element (L2) can control (limit) the viewing angles in the first direction (X) to be different, and can control (limit) the viewing angles in the second direction (Y) to be equal.

[0042] According to an embodiment, the light control elements (L1, L2) can be provided with a fluid-type substance, a semi-fluid-type substance, or a solid. The materials and configurations of the light control elements (L1, L2) are not limited to the above-described examples. Also, in some cases, the light control elements (L1, L2) can be referred to as a light control layer, a light control configuration, a lens, or a viewing angle control unit, but are not limited to these terms.

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

[0044] In the first viewing angle mode, each sub-pixel (SP) of the display panel 100 drives the first light-emitting element (EL1), and provides light with a wide viewing angle without restricting the traveling path of the light emitted from the first light-emitting element (EL1) through the first light control element (L1) within a specific angle in the first direction (X).

[0045] In the second viewing angle mode, each sub-pixel (SP) of the display panel 100 drives the second light-emitting element (EL2), and restricts the traveling path of the light emitted from the second light-emitting element (EL2) through the second light control element (L2) within a specific cut-off angle in the first direction (X), thereby providing light with a narrow viewing angle.

[0046] The first light control element (L1) and the second light control element (L2) can limit the light propagation path in the second direction (Y) within the cut-off angle to control a narrow viewing angle. Thereby, when the display device 1000 is applied to an automobile as shown in FIG. 5 in one embodiment, it is possible to prevent the video displayed on the display device 1000 from being reflected by the front glass of the automobile and obstructing the driver's field of view.

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

[0048] The gate driver can be built in and arranged in the non-display area (NDA) of the display panel 100, and is not limited thereto, and can be dispersedly arranged in the display area (DA). A gate driver according to one embodiment can be built in the display panel 100 in a GIP (Gate In Panel) type composed of transistors formed in the same process as the transistors in the display area (DA).

[0049] The gate driver can include at least one scan driver 210 that drives at least any one of the gate lines 12 and at least one emission control driver 220 that drives at least any one of the gate lines 16. The number of gate lines connected to the sub-pixel (SP), the number of scan drivers 210, and the number of emission control drivers 220 can be variously changed according to the detailed configuration of the pixel circuit constituting the sub-pixel (SP).

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

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

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

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

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

[0055] For the display area (DA) of the display panel 100 and the plurality of transistors arranged in the non-display area (NDA) including the gate driver, at least one of an LTPS transistor using a low temperature poly silicon (LTPS) semiconductor and an oxide transistor using a metal oxide semiconductor can be applied. The display panel 100 according to one embodiment can be configured such that the LTPS transistor and the oxide transistor coexist to reduce power consumption.

[0056] Referring to FIG. 5, the plurality of display devices arranged on the automobile dashboard can include a cluster, a center information display (CID), and a co-driver display (CDD). For the cluster and the center information display (CID) mainly used by the driver (DR), a display device that restricts the viewing angle in only the second direction (Y) within the cut-off angle for safe driving can be applied. For the center information display (CID), a display device having a touch sensor can be applied. For the co-driver display (CDD) used by the driver (DR) and the passenger (PA), a display device 1000 capable of controlling the viewing angle in the first viewing angle mode and the second viewing angle mode can be applied as in the above-described embodiment.

[0057] The co-driver display (CDD) 1000 can be driven in the first viewing angle mode under the control of the host system when the driver (DR) is not driving, and can provide an image with a wide viewing angle in the first direction (X) to the driver (DR) and the passenger (PA).

[0058] The co-driver display device (CDD) can be driven in a second viewing angle mode under the control of the host system when the driver (DR) is driving, and can limit the viewing angle within the cut-off angle in the first direction (X) to provide a video with a narrow viewing angle only to the passenger (PA), and can refrain from providing a video so as not to interfere with the driver (DR).

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

[0060] FIG. 6 is an equivalent circuit diagram illustrating a sub-pixel configuration in a display panel according to an embodiment, and FIG. 7 is a diagram illustrating a driving waveform of a sub-pixel according to an embodiment.

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

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

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

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

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

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

[0067] In the embodiment, the second light emitting element (EL2) can include a plurality of light emitting elements. For example, the second light emitting element (EL2) can include a second-1 light emitting element and a second-2 light emitting element. In this case, the second-1 light emitting element and the second-2 light emitting element can be connected in parallel. According to the embodiment, the second-1 light emitting element and the second-2 light emitting element can form a common anode, but are not limited thereto. According to the embodiment, the second light emitting element (EL2) can include three or more light emitting elements.

[0068] Referring to FIG. 7, the sub-pixel (SP) can be driven to include an initialization (Initial) period (t1), a sampling and writing (Writing) period (t2), and a light emission (Emision) period (t3) every each of the frame periods (N, N+1). For convenience of explanation, in FIG. 7, the N frame period indicates any one of the frame periods in the first viewing angle mode, and the N+1 frame period indicates any one of the frame periods in the second viewing angle mode.

[0069] Each of the driving transistor (DT) of the pixel circuit 10 and the plurality of switching transistors (T1 to T8) includes a gate electrode, a source electrode, and a drain electrode. Since the source electrode and the drain electrode are not fixed and can be changed according to the direction of the voltage and current applied to the gate electrode, either the source electrode or the drain electrode can be represented by the first electrode, and the other one can be represented by the second electrode. The driving transistor (DT) of the pixel circuit 10 and the plurality of switching transistors (T1 to T8) can use at least any one of a polysilicon semiconductor, an amorphous silicon semiconductor, and an oxide semiconductor, and can be of P-type or N-type, or can mix P-type and N-type.

[0070] The first and second light-emitting elements (EL1, EL2) can include anode electrodes (AE1, AE2) individually connected to the eighth and sixth switching transistors (T8, T6), a cathode electrode (CE) receiving a supply of a low-potential power supply voltage (ELVSS) from the second power supply line 34, an anode electrode (AE1, AE2), and a light-emitting layer between the cathode electrode (CE). When the driving current is supplied from the driving transistor (DT) to the first and second light-emitting elements (EL1, EL2) through the eighth and sixth switching transistors (T8, T6), electrons from the cathode electrode (CE) are injected into the light-emitting layer, holes from the anode electrodes (AE1, AE2) are injected into the organic light-emitting layer, and fluorescence or phosphorescence substances are caused to emit light by recombination of electrons and holes in the light-emitting layer, so that light having a brightness proportional to the current value of the driving current can be emitted.

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

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

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

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

[0075] The second switching transistor (T2) can connect the gate electrode and the second electrode of the driving transistor (DT) to form a diode structure by connecting them in response to the second scan signal (SCAN2) during the initialization period (t1) and the sampling and writing period (t2). The second switching transistor (T2) can charge and compensate the threshold voltage (Vth) of the driving transistor (DT) to the storage capacitor (Cst). Thereby, the storage capacitor (Cst) can charge the data voltage in which the threshold voltage (Vth) of the driving transistor (DT) is compensated.

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

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

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

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

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

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

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

[0083] During a light emitting period (t3) of a driving period (N frames) 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, T8). Thereby, the sub-pixel (SP) can provide light of a first viewing angle via the first light emitting element (EL1) and the first light control element (L1, FIG. 4A).

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

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

[0086] During the light-emitting period (t3) of the driving period (N + 1 frames) 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, T6). Thereby, the sub-pixel (SP) can provide light of the second viewing angle via the second light-emitting element (EL2) and the first light control element (L2, FIG. 4B).

[0087] FIG. 8 is a plan view showing an enlarged structure of the A region of the display panel according to an embodiment shown in FIG. 1, FIG. 9 is a plan view showing the structure of the A region shown in FIG. 8 including a black matrix, FIG. 10 is a plan view showing an enlarged structure of the pixel region among the A regions shown in FIG. 8, and FIG. 11 is a plan view showing the structure of the pixel region shown in FIG. 10 including a black matrix.

[0088] Referring to FIGS. 8 to 11, the A region is an enlarged view of a plurality of pixel regions in the display panel 100 according to an embodiment shown in FIG. 1. The A region of the display panel 100 according to an embodiment can have a structure in which at least a part of the pixel array, the touch sensor array, and the light control array overlap. The pixel array can include a plurality of sub-pixels (SP1, SP2, SP3) having a plurality of light-emitting elements (EL1:EL11, EL21, EL31)(EL2:EL12, EL22, EL32). The touch sensor array can include a plurality of sensor electrodes (SE), bridge electrodes (BE), dummy electrodes (DSE), and a black matrix (BM). The light control array can include a plurality of light control elements (L1:L11, L21, L31)(L2:L12, L22, L32).

[0089] The pixel array can include a 2n - 1st row line (R2n - 1, where n is a natural number) including a plurality of sub - pixels (SP1, SP2, SP3) arranged in a first direction (X), a 2nth row line (R2n), a 2m - 1st column line (C2m - 1, where m is a natural number) including a plurality of sub - pixels (SP1, SP2, SP3) arranged in a second direction (Y), and a part of a 2mth column line (C2m).

[0090] The 2m - 1st column line (C2m - 1) can include a plurality of first - type sub - pixels (SP1) arranged in the second direction (Y). The 2mth column line (C2m) can include a plurality of second - and third - type sub - pixels (SP2, SP3) in which the second - and third - type sub - pixels (SP2, SP3) are alternately arranged in the second direction (Y).

[0091] Each of the 2n - 1st row line (R2n - 1) and the 2nth row line (R2n) can include a plurality of first - to third - type sub - pixels (SP1, SP2, SP3) in which the first - type sub - pixel (SP1) and the second / third - type sub - pixels (SP2, SP3) are alternately arranged in the first direction (X).

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

[0093] The first type of sub-pixel (SP1) can include a first light-emitting element (EL11) (first-1 light-emitting element), a first light control element (L11) (first-1 light control element) superimposed on the first light-emitting element (EL11), at least one second light-emitting element (EL12) (first-2 light-emitting element), and at least one second light control element (L12) (first-2 light control element) superimposed on at least one second light-emitting element (EL12). Other names for the light-emitting element and the light control element are similarly applicable. The light-emitting region of the first light-emitting element (EL11) can have a structure that is longer in the first direction (X) than in the second direction (Y).

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

[0095] The second light-emitting element (EL12) and the second light control element (L12) of the first type of sub-pixel (SP1) can 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 in the second direction (Y).

[0096] In other embodiments, in the first type of sub-pixel (SP1), a plurality of light control elements (L12) can be arranged on one second light-emitting element (EL12). Under the plurality of light control elements (L12) shown in FIG. 10, one light-emitting layer can be commonly arranged. However, in this case, under the region corresponding to the first light-emitting element (EL11), the light-emitting layer of the second light-emitting element (EL12) can be not arranged, and a light-emitting layer dedicated to the first light-emitting element (EL11) can be separately arranged.

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

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

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

[0100] In the second-type sub-pixel (SP2), two second light control elements (L22) can be arranged in parallel in the first direction (X), and the first light control element (L21) and the two second light control elements (L22) can be arranged separately in the second direction (Y).

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

[0102] In the third-type sub-pixel (SP3), two second light-emitting elements (EL32) (third-2 light-emitting elements) can be arranged in parallel in the first direction (X), and the first light-emitting element (EL31) (third-1 light-emitting element) and the two second light-emitting elements (EL32) can be arranged separately in the second direction (Y). The two second light-emitting elements (EL32) can have a parallel connection structure in which the anode electrodes are connected to each other.

[0103] In the third-type sub-pixel (SP3), two second light control elements (L32) (third - 2 light control elements) can be arranged in parallel in the first direction (X), and the first light control element (L31) (third - 1 light control element) and the two second light control elements (L32) can be arranged separately in the second direction (Y).

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

[0105] The third - type sub - pixel (SP3) can be a blue sub - pixel having first and second light emitting elements (EL31, EL32) that emit blue light.

[0106] In one embodiment, the colors emitted by each of the first - type sub - pixel (SP1), the second - type sub - pixel (SP2), and the third - type sub - pixel (SP3) can be different from those described above. Also, in some cases, the arrangements of the light control elements (L1:L11, L21, L31)(L2:L12, L22, L32) and the light emitting elements within the first - type sub - pixel (SP1), the second - type sub - pixel (SP2), and the third - type sub - pixel (SP3) can be different.

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

[0108] In one embodiment, in order to compensate for the deviation in the light emission efficiency by color of the first light-emitting elements (EL11, EL21, EL31), the sizes of the first light-emitting elements (EL11, EL21, EL31) may differ by color. In one 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 the same as 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).

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

[0110] 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) disposed to overlap on the non-light-emitting region of the pixel array. The plurality of sensor electrodes (SE) and the plurality of dummy electrodes (DSE) can be disposed separately from each other in the same layer. The bridge electrode (BE) can be disposed and overlapped in a layer different from the sensor electrode (SE) and the dummy electrode (DSE), and the plurality of sensor electrodes (SE) can be electrically connected via a contact portion (CNT).

[0111] In one embodiment, the plurality of sensor electrodes (SE) can be disposed in the non-light-emitting region of the first type sub-pixel (SP1) along the (2m - 1)-th column line (C2m - 1). The plurality of sensor electrodes (SE) can be separated in the second direction (Y) with the first light-emitting element (EL11) of the first type sub-pixel (SP1) interposed therebetween.

[0112] Each of the plurality of sensor electrodes (SE) can include a first sensor electrode portion (SE1) disposed in a non-light-emitting region around the second light-emitting element (EL12) of the first-type sub-pixel (SP1), and a second sensor electrode portion (SE2) disposed in a non-light-emitting region around the second light-emitting element (EL22) of another second-type sub-pixel (SP2) adjacent in the second direction (Y). Each of the plurality of sensor electrodes (SE) can further include a third sensor electrode portion (SE3) that connects the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) in the second direction (Y).

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

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

[0115] The first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) are each connected to the third sensor electrode portion (SE3), and the first sensor electrode portion (SE1), the second sensor electrode portion (SE2), and the third sensor electrode portion (SE3) can be arranged in an integrated pattern. The first sensor electrode portion (SE1), the second sensor electrode portion (SE2), and the third sensor electrode portion (SE3) forming the integrated pattern can be arranged, for example, across the first type of sub-pixel (SP1) located in the 2n-th row line (R2n) and the first sub-pixel (SP1) located in 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 sub-pixel (SP1) located in the (2n + 1)-th row line (R2n + 1), the second sensor electrode portion (SE2) overlaps with the non-light emitting region of the first sub-pixel (SP1) located in the 2n-th row line (R2n), the third sensor electrode portion (SE3) overlaps with the non-light emitting region between the first sub-pixel (SP1) located in the (2n + 1)-th row line (R2n + 1) and the first sub-pixel (SP1) located in the 2n-th row line (R2n), and can be integrated with the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2).

[0116] The first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) can each include an opening (OH1) that overlaps with the light emitting region of the second light emitting element (EL12) and the second light control element (L12). The size of each opening (OH1) of the first and second sensor electrode portions (SE1, SE2) may be larger than the size of the light emitting region of the second light emitting element (EL12) and smaller than the size of the light incident surface of the second light control element (L12). The ends of the first and second sensor electrode portions (SE1, SE2) that overlap with the second light control element (L12) can, together with the second light control element (L12), limit the radiation angle of the light emitted by the second light emitting element (EL12) within the cut-off angles in the first and second directions (X, Y), and can block light leakage.

[0117] The ends 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 sub-pixel (SP1) therebetween overlap with the ends of the first light-emitting element (EL11) that do not overlap with the first light control element (L11). 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.

[0118] In one embodiment, each of the plurality of bridge electrodes (BE) can be arranged along the second direction (Y) via the non-light-emitting regions of the first to third type sub-pixels (SP1, SP2, SP3).

[0119] The bridge electrode (BE) is disposed on both sides of each of the 2m - 1 column lines (C2m - 1), and can include first and second bridge electrode portions (BE1, BE2) extending along the second direction (Y) or the 2m - 1 column line (C2m - 1), and a third bridge electrode portion (BE3) connecting the first and second bridge electrode portions (BE1, BE2).

[0120] The first and second bridge electrode portions (BE1, BE2) overlap with the first sensor electrode (SE) around the second light-emitting element (EL12) of the first type sub-pixel (SP1), and can overlap with the dummy electrodes (DSE) around the second light-emitting elements (EL22, EL32) of the second and third type sub-pixels (SP2, SP3). The first and second bridge electrode portions (BE1, BE2) can be symmetric with respect to the first direction. The third bridge electrode portion (BE3) can be electrically connected to the first sensor electrode portion (SE1) and the second sensor electrode portion (SE2) via a contact portion (CNT).

[0121] The first and second bridge electrode portions (BE1, BE2) extending along the 2m - 1 column line (C2m - 1) from both sides of the 2m - 1 column line (C2m - 1) can have a pattern in which the mutual interval in the first direction (X) varies along the second direction (Y).

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

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

[0124] In one embodiment, the first and second bridge electrode portions (BE1, BE2) can have a slanted pattern form that overlaps via a dummy electrode (DSE) and a sensor electrode between the maximum mutual distance portion and the minimum mutual distance portion.

[0125] The plurality of dummy electrodes (DSE) can be arranged in the non-light-emitting region of the 2m-th column line (C2m). The dummy electrodes (DSE) can be arranged in the non-light-emitting regions of the second and third type sub-pixels (SP2, SP3). The plurality of dummy electrodes (DSE) can include a first dummy electrode (DSE1) arranged in the non-light-emitting region around the second light emitting elements (EL22, EL32) of the second and third type sub-pixels (SP2, SP3) adjacent in the second direction (Y), and a second dummy electrode (DSE2) arranged in the non-light-emitting region between the first light emitting elements (EL21, EL31) of the second and third type sub-pixels (SP2, SP3) adjacent in the second direction (Y). The first dummy electrode (DSE1) can have a larger area than the second dummy electrode (DSE2).

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

[0127] The first dummy electrode (DSE1) can overlap with the light emitting regions of the second light emitting elements (EL22, EL32) and include an opening (OH2) that overlaps with the second light control elements (L22, L32). The size of the opening (OH2) of the first dummy electrode (DSE1) may be larger than the size of the light emitting region of the second light emitting elements (EL22, EL32) and smaller than the size of the light incident surface of the second light control elements (L22, L32). The end portion of the first dummy electrode (DSE1) that overlaps with the second light control elements (L22, L32) can, together with the second light control elements (L22, L32), limit the traveling directions of the light emitted from the second light emitting elements (EL22, EL32) in the first and second directions (X, Y) within the cut-off angle, and can block light leakage.

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

[0129] The end portions of the first dummy electrode (DSE1) and the second dummy electrode (DSE2) in the second direction (Y) overlap with the portions of the first light control elements (L21, L31) that do not overlap with the first light emitting elements (EL21, EL31), and can, together with the first light control elements (L21, L31), limit the traveling direction of the light emitted from the first light emitting elements (EL21, EL31) in the second direction (Y) within the cut-off angle, and can prevent light leakage.

[0130] The second dummy electrode (DSE2) can have a pattern form including a portion of the non-light-emitting region adjacent to the first light control element (L31) of the third type sub-pixel (SP3) and having the maximum length in the first direction (X), and a portion of the non-light-emitting region adjacent to the first light control element (L21) of the second type sub-pixel (SP2) and having the minimum length in the first direction (X).

[0131] Referring to FIGS. 9 and 11, the touch sensor array can further include a black matrix (BM) disposed in the non-light-emitting region of the pixel array.

[0132] The black matrix (BM) can include a first opening (BH1) overlapping with the first light-emitting elements (EL1: EL11, EL21, EL31) and a second opening (BH2) overlapping with the second light-emitting elements (EL2: EL12, EL22, EL32). The size of the first opening (BH1) of the black matrix (BM) can be larger than the size of the light-emitting region of the second light-emitting elements (EL2: EL12, EL22, EL32) and can be smaller or larger than the size of the light-incident surface of the second light control elements (L2: L12, L22, L32). The size of the second opening (BH2) of the black matrix (BM) can be larger than the size of the light-emitting region of the first light-emitting elements (EL1: EL11, EL21, EL31) and can be smaller or larger than the size of the light-incident surface of the first light control elements (L1: L11, L21, L31).

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

[0134] The end portions of the black matrix (BM) adjacent to or overlapping with either the sensor electrode (SE) or the dummy electrode (DSE) and the first light control elements (L1:L11, L21, L31) can limit the emission angle of the light emitted by the first light emitting elements (EL1:EL11, EL21, EL31) together with the first light control elements (L1:L11, L21, L31) within the cut-off angle in the second direction (Y), and can block the leakage light and the reflected light to prevent light leakage. The end portions of the black matrix (BM) adjacent to or overlapping with either the sensor electrode (SE) or the dummy electrode (DSE) and the second light control elements (L2:L12, L22, L32) can limit the emission angle of the light emitted by the second light emitting elements (EL2:EL12, EL22, EL32) together with the second light control elements (L2:L12, L22, L32) within the cut-off angles in the first and second directions (X, Y), and can block the leakage light and the reflected light to prevent light leakage.

[0135] The sensor electrode (SE), dummy electrode (DSE), bridge electrode (BE), and black matrix (BM) of the touch sensor array can be arranged in the non-light emitting region and function as a barrier to block light.

[0136] In one embodiment, the ends of the sensor electrode (SE) and the dummy electrode (DSE) can be non - overlapping with the portion adjacent to the first light - emitting elements (EL1:EL11, EL21, EL31) in the first light - control elements (L1:L11, L21, L31) and parallel to the first direction (X). Thereby, since the ends 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, EL31) in the first direction (X), the first light - control elements (L1:L11, L21, L31) can ensure a wide viewing - angle characteristic. The first overlapping portion where either end of the sensor electrode (SE) or the dummy electrode (DSE) overlaps with the end of the first light - control element (L1) in the second direction (Y) can be separated from the end of the light - emitting region of the first light - emitting element (EL1) in the second direction (Y). The second overlapping portion where the end of the black matrix (BM) overlaps with the end of the first light - control element (L1) in the second direction (Y) can be separated from the end of the light - emitting region of the first light - emitting element (EL1) in the second direction (Y). The area of the first overlapping portion may be smaller than the area of the second overlapping portion. The length of the first overlapping portion in the first direction (X) can be larger than the length of the first light - emitting element (EL1) in the first direction (X). The third overlapping portion where either end of the sensor electrode (SE) or the dummy electrode (DSE) overlaps with the end of the second light - control element (L2) can be separated from the end of the light - emitting region of the first light - emitting element (EL1). The fourth overlapping portion where the end of the black matrix (BM) overlaps with the end of the second light - control element (L2) in the second direction (Y) can be separated from the end of the light - emitting region of the second light - emitting element (EL2). The area of the third overlapping portion may be smaller than the area of the fourth overlapping portion.

[0137] In the display panel 100 according to one 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 the relatively smallest light - emitting region area, the light - emitting areas of the second - and third - type sub - pixels (SP2, SP3) and the areas of the light - control elements (L1, L2) can be sufficiently ensured to improve the luminance.

[0138] The plurality of contact portions can be arranged in a non-light-emitting region between the second light-emitting elements (EL12) of the first-type sub-pixels (SP1) adjacent in the second direction (Y). Any one of the contact portions (CNT) can be arranged in a non-light-emitting region between the first light-emitting elements (EL21) of the second-type sub-pixels (SP2) adjacent in the first direction (X). Any one of the contact portions (CNT) can be arranged in a non-light-emitting region between the first light-emitting elements (EL31) of the third-type sub-pixels (SP3) adjacent in the first direction (X).

[0139] FIG. 12 is a cross-sectional view showing the structure of the sub-pixel region along the cutting line I-I' in the pixel region shown in FIG. 11.

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

[0141] Referring to FIG. 12, in the display panel 100 according to an embodiment, among the first to third type sub-pixels (SP1, SP2, SP3), the cross-sectional structure of the second type sub-pixel (SP2) will be described by way of example. The first to third type sub-pixels (SP1, SP2, SP3) can have the same cross-sectional structure.

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

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

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

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

[0146] A plurality of transistors including switching transistors (T8, T6) can be disposed on the buffer layer 121.

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

[0148] The transistors (TFT1, TFT2) each include a semiconductor layer 221, a gate electrode 223, a source electrode 225, and a drain electrode 227 disposed on the buffer layer 121. A gate insulating layer 122 is disposed between the semiconductor layer 221 and the gate electrode 223. An interlayer insulating layer 123 is disposed between the gate electrode 223 and the source and drain electrodes 225, 227. The respective source electrodes 225 and drain electrodes 227 of the transistors (TFT1, TFT2) can be connected to the source region and the drain region of the semiconductor layer 221 through respective contact holes penetrating the interlayer insulating layer 123 and the gate insulating layer 122.

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

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

[0151] On the gate insulating layer 122, the gate electrode 223 and the gate line can be arranged.

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

[0153] On the interlayer insulating layer 123, the source electrode 225, the drain electrode 227, the data line, and the power supply line can be arranged.

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

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

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

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

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

[0159] The light-emitting layer 322 can include a light-emitting material layer (Emission 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 multilayer structure. In one embodiment, the light-emitting layer 322 can further include at least one of a hole injection layer (Hole Injection Layer; HIL), a hole transport layer (Hole Transport Layer; HTL), an electron transport layer (Electron Transport Layer; ETL), and an electron injection layer (Electron Injection Layer; EIL).

[0160] The cathode electrode 323 can be a common electrode and can include a conductive material that transmits light. The cathode electrode 323 can include a transparent conductive material such as ITO or IZO. The cathode electrode 323 can include aluminum (Al), magnesium (Mg), silver (Ag), or an alloy thereof, and can have a thin thickness that can transmit light.

[0161] A bank insulating layer 132 can be positioned on the anode electrodes 321 of the first and second light-emitting elements (EL1, EL2). The anode electrodes 321 of the first and second light-emitting elements (EL1, EL2) are spaced apart from each other, and the bank insulating layer 132 can be positioned between the anode electrodes 321 of the first and second light-emitting elements (EL1, EL2). The bank insulating layer 132 can cover the ends of the anode electrodes 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 disposed on the bank insulating layer 132.

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

[0163] A sealing layer 150 can be positioned on the light-emitting element layer 130 including the first and second light-emitting elements (EL1, EL2). The sealing layer 150 can prevent damage to the light-emitting elements (EL1, EL2) due to moisture and impact from the outside. The sealing layer 150 can have a multilayer structure. In one embodiment, the sealing layer 150 can include, but is not limited to, a first sealing layer 152, a second sealing layer 154, and a third sealing layer 156 laminated in sequence. The first sealing layer 152, the second sealing layer 154, and the third sealing layer 156 can include an insulating material. The second sealing layer 154 can include a material different from the first sealing layer 152 and the third sealing layer 156. For example, the first sealing layer 152 and the third sealing layer 156 are inorganic sealing layers including an inorganic insulating material, and the second sealing layer 154 can include an organic sealing layer including an organic insulating material. Thereby, the light-emitting elements (EL1, EL2) of the display device can be more effectively protected from damage due to moisture and impact from the outside.

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

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

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

[0167] 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), and can control the propagation path of the light generated in the light-emitting regions (EA1, EA2).

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

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

[0170] FIG. 13 is a cross-sectional view showing another structure of the sub-pixel region according to an embodiment.

[0171] As shown in FIGS. 12 and 13, FIG. 13 has a structure in which the width of the black matrix (BMa) is larger than the widths of the sensor electrode (SEa) and the dummy electrode (DSE), in contrast to FIG. 12. Since the remaining components are the same, the description of the same components is omitted.

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

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

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

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

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

[0177] A black matrix (BM) having an opening (BH3) larger than the first contact hole (CH1) can 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 bridge electrode (BE). The width of the opening (BH3) of the black matrix (BM) in the second direction (Y) may be larger than the width of the bridge electrode (BE).

[0178] A third touch insulating layer 166 having second and third contact holes (CH2, CH3) can be 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 and third contact holes (CH2, CH3) having different sizes of the second touch insulating layer 164 can be formed using a halftone mask process.

[0179] A sensor electrode (SE) is disposed on the third touch insulating layer 166 and can be connected to the bridge electrode (BE) via the contact holes (CH1, CH2, CH3). The sensor electrode (SE) can be disposed in a gentle stepped form via contact holes (CH1, CH2, CH3) having different sizes, and also in a gentle stepped form in the relatively thick third touch insulating layer 166, thereby preventing disconnection of the sensor electrode (SE).

[0180] FIG. 16A and FIG. 16B are diagrams showing a comparison of the light propagation paths in the sub-pixel regions of display panels according to a comparative example and an embodiment, and FIG. 17 is a graph showing the light leakage reduction effect of a display device according to an embodiment as compared with the comparative example.

[0181] Referring to FIG. 16A, the touch sensor array 260 in the display panel according to the comparative example can include first and second barriers (B1, B2) that overlap with the ends of the light control element (L2). The first barrier (B1) can be a sensor electrode, and the second barrier (B2) can be a black matrix. The pitch between the light-emitting elements (EL2) of adjacent sub-pixels can have a first pitch (24 μm). The size of the opening of the first barrier (B1) that overlaps with the light control element (L2) can be smaller than the size of the opening of the second barrier (B2) that overlaps with the light control element (L2).

[0182] Referring to FIGS. 16A and 17, the light 51 radiated from the light-emitting region (EA2) of the light-emitting element (EL2) in the display panel according to the comparative example and traveling in the first optical path can have its radiation angle in the first direction (X) restricted within a cut-off angle (±30 degrees) by the barriers (B1, B2) and the light control element (L1), and the leakage light 52 in the second optical path with a relatively small radiation angle can be blocked by the second barrier (B2). However, the first pitch (24 μm) between the light-emitting elements (EL2) of adjacent sub-pixels is insufficient, and leakage light 53 in the third optical path with a relatively large radiation angle can occur, and reflected light 54 in the fourth optical path reflected by the second barrier (B2) and the adjacent light-emitting element (EL2) can occur, from which it can be seen that a light leakage phenomenon occurs at a viewing angle (±65 to 80 degrees) larger than the cut-off angle (±30 degrees).

[0183] On the one hand, referring to FIG. 16B, in a display panel according to an 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) contains a black resin material and can block reflected light. The pitch between the light-emitting elements (EL2) of adjacent sub-pixels can ensure a second pitch (28 μm) that is larger than the first pitch (24 μm). The size of the opening of the black matrix (BM) that overlaps with the light control element (L2) may be smaller than the size of the opening of the sensor electrode (SE) or dummy electrode (DSE) that overlaps with the light control element (L2).

[0184] Referring to FIGS. 16B and 17, in a display panel according to an embodiment, the light 51 radiated from the light-emitting region (EA2) of the light-emitting element (EL2) and traveling in the first optical path can have its radiation angle in the first direction (X) restricted within the cutoff angle (±30 degrees) by the barriers (B1, B2) and the light control element (L1). With a sufficient first pitch (28 μm) between the light-emitting elements (EL2) of adjacent sub-pixels, the leakage light 52 in the second optical path with a large radiation angle can be blocked by the sensor electrodes (SE) or dummy electrodes (DSE), and the leakage light 53 in the third optical path with a large radiation angle can also be blocked by the black matrix (BM). It can be seen that the light traveling in the fourth optical path has its reflection blocked by the black matrix (BM), thereby blocking light leakage at a viewing angle larger than the cutoff angle (±30 degrees).

[0185] FIGS. 18 and 19 are cross-sectional views schematically showing the structure of sub-pixels of a display panel according to an embodiment.

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

[0187] Referring to FIG. 18, for improving light efficiency, the second light control element (L2) may have an incident light surface larger than the size of the light-emitting region (EA2) so as to overlap with the light-emitting region (EA2) of the second light-emitting element (EL2) and also overlap with a non-light-emitting region surrounding the light-emitting region (EA2). To block light leakage, the size of the opening of the black matrix (BM) disposed in the non-light-emitting region may be larger or smaller than the size of the incident light surface of the second light control element (L2), and the end of the black matrix (BM) may be non-overlapping or overlapping 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 region may be smaller than the size of the incident light 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). Thereby, the second light control element (L2) can limit the cut-off angles with respect to the first and second directions (X, Y) of the light emitted from the second light-emitting element (EL2) within a specific value, and ensure the narrow viewing angle characteristic in the second direction (Y).

[0188] In a second type of sub-pixel (SP2, see FIG. 11) according to an embodiment, the distance (D1) in the first direction (X) between the end of the sensor electrode (SE) disposed in the non-emitting region and the end of the bank insulating layer 132 that determines the light-emitting region (EA2) of the second light-emitting element (EL2) can be set to about 16 μm. Thereby, the sensor electrode (SE) can not only block the light leakage of the light emitted from the second light-emitting element (EL2), but also maximize the area of the sensor electrode (SE) in the non-emitting region to improve the touch sensing sensitivity.

[0189] Referring to FIGS. 18 and 19, for improving the light efficiency, the first light control element (L1) can have a light incident surface larger than the size of the light-emitting region (EA1) so as to overlap with the light-emitting region (EA1) of the second light-emitting element (EL1) and also overlap with the non-emitting region surrounding the light-emitting region (EA1). In order to ensure the wide viewing angle characteristic in the first direction (X), in the non-emitting region in the first direction (X), the first light control element (L1) can be non-overlapping with the black matrix (BM) and the sensor electrode (SE) or the dummy electrode (DSE).

[0190] 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 determines the light-emitting region (EA1) of the first light-emitting element (EL1) can be set to about 15 μm. Thereby, the first light control element (L1) can not only block the light leakage of the light emitted from the second light-emitting element (EL2), but also increase the cut-off angle in the first direction (X) to ensure the wide viewing angle characteristic in the first direction (X).

[0191] Referring to FIG. 19, in one embodiment, the length in the first direction (X) of the end portion in the first direction (X) of the sensor electrode (SE) or the dummy electrode (DSE) that overlaps with the end portion in the second direction (Y) of the first light control element (L1) may be longer than the length in the first direction of the first light emitting region of the first light emitting element (EL1). In one embodiment, the distance (D3) in the first direction (X) between the end portion in the first direction (X) of the sensor electrode (SE) or the dummy electrode (DSE) that overlaps with the end portion in the second direction (Y) of the first light control element (L1) and the end portion of the light emitting region of the light emitting element (EL1) (the end portion of the bank insulating layer) can be set to about 5 μm. Thereby, it is possible to block the diagonal light leakage in which the light emitted from the first light emitting element (EL1) travels in the diagonal direction and leaks, and maximize the area of the sensor electrode (SE) or the dummy electrode (DSE) within the non-light emitting region, thereby improving the touch sensing sensitivity.

[0192] In one embodiment, the distance in the second direction between the end portion in the second direction (Y) of the first light control element (L1) and the end portion of the sensor electrode (SE) or the dummy electrode (DSE) can be set to about 2 μm. Thereby, 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, and ensure the narrow viewing angle characteristic in the second direction (Y).

[0193] FIG. 20 is a graph showing the effect of improving the viewing angle cut-off ratio of the display device according to one embodiment.

[0194] Referring to FIG. 20, in the display device according to one embodiment, when the pitch between the second light emitting elements of adjacent sub-pixels that emit light in the privacy mode is 26 μm or less, the cut-off ratios of red light (R) and blue light (B) at the cut-off angles (30 degrees to 60 degrees) in the first direction (X, L / R) are 0%, and light leakage can be blocked, while the cut-off ratio of green light (G) is 0.6 to 0.7%, and it can be seen that weak light leakage may occur.

[0195] In one embodiment, when the pitch between the second light-emitting elements of adjacent sub-pixels that emit light in privacy mode is 28 μm or more, at a cut-off angle (30 degrees to 60 degrees) in the first direction (X, L / R), the cut-off ratios of red light (R), green light (G), and blue light (B) are 0%, indicating that light leakage can be blocked.

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

[0197] In the display device according to the comparative example and an embodiment, the light control elements (L1, L2) can have a refractive index difference for each light wavelength. For example, in the first and second lenses which are the light control elements (L1, L2), the refractive index with respect to blue light (B) having a central wavelength of 450 nm is 1.68, the refractive index with respect to green light (G) having a central wavelength of 550 nm is 1.65, and the refractive index with respect to red light (R) having a central wavelength of 650 nm can be 1.63.

[0198] Referring to FIG. 21A, in the display device according to the comparative example, since the first light-emitting elements and the second light-emitting elements of the red, green, and blue sub-pixels have the same light-emitting area without color difference, near the cut-off angle (30 degrees) of the viewing angle, it can be seen that the luminance reduction rate of blue light (R) increases more than the luminance reduction rate of red light (R), and a color perception difference such as yellowish may occur.

[0199] On the one hand, referring to FIG. 21B, in a display device according to an embodiment, the first light-emitting elements (EL11, EL21, EL31, FIG. 10) and the second light-emitting elements (EL12, EL22, EL32, FIG. 10) of the red, green, and blue sub-pixels can have different light-emitting areas for each color. In one embodiment, similar to the order of the refractive indices of the red / green / blue light (R / G / B) of the lenses which are light control elements (L1, L2), the light-emitting area can be increased in the order of the red, green, and blue sub-pixels. As a result, near the cut-off angle (30 degrees) of the viewing angle, the luminance reduction rate of the blue light (R) is less than that of the red light (R), and by minimizing the color difference such as Yellowish, it can be understood that the display performance such as the display quality can be improved.

[0200] As described above, the display device according to an embodiment can not only control the viewing angle according to the needs of the user by driving the light-emitting elements of each sub-pixel separately, but also appropriately arrange the black matrix, sensor electrodes, and dummy electrodes that function as a light barrier in the touch sensor array to overlap and not overlap with the light control element in the non-light-emitting area, so as to ensure the narrow viewing angle characteristics and wide viewing angle characteristics by viewing angle control, block the light leakage caused by the leakage light and reflected light, and improve the display performance such as the luminance and display quality.

[0201] The display device according to an embodiment can improve the touch sensing sensitivity by maximizing the area of the sensor electrodes and dummy electrodes arranged in the non-light-emitting area of the touch sensor array, so that the touch sensing performance can be improved.

[0202] The display device according to an embodiment can improve the display performance such as the display quality by differentiating the size of the light-emitting area according to the wavelength and minimizing the color difference such as Yellowish near the cut-off angle of the viewing angle due to the refractive index difference of the light control element according to the wavelength.

[0203] The display device according to an embodiment can also achieve a low power consumption effect by improving touch sensing performance and display performance.

[0204] The display device according to an embodiment includes a pixel circuit, a pixel array including a plurality of sub-pixels including a first light-emitting element and a second light-emitting element connected to the pixel circuit, a sealing layer disposed to seal a light-emitting element layer including the first and second light-emitting elements on the pixel array, a touch sensor array disposed on the sealing layer and including a black matrix, a sensor electrode, and a dummy electrode that overlap with a non-light-emitting region of the pixel array, and a light control array disposed on the touch sensor array and including a first light control element that overlaps with the first light-emitting element and a second light control element that overlaps with the second light-emitting element. The sensor electrode is disposed in a non-light-emitting region of the first type of sub-pixels among the plurality of sub-pixels, and the dummy electrode can be disposed in non-light-emitting regions of the second type of sub-pixels and the third type of sub-pixels among the plurality of sub-pixels.

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

[0206] In a display device according to an embodiment, the first-type sub-pixel includes a first-1 light-emitting element having a first-1 light-emitting region with a structure longer in the first direction than in the second direction, and a plurality of first-2 light-emitting elements having a size smaller than that of the first-1 light-emitting region and having a plurality of first-2 light-emitting regions separated in the second direction with the first-1 light-emitting element interposed therebetween. The plurality of first-2 light-emitting elements can share an anode electrode connected to the pixel circuit of the first-type sub-pixel.

[0207] In a display device according to an embodiment, the second-type sub-pixel includes a second-1 light-emitting element having a second-1 light-emitting region with a structure longer in the first direction than in the second direction, and a plurality of second-2 light-emitting elements having a size smaller than that of the second-1 light-emitting region and having a plurality of second-2 light-emitting regions separated from the second-1 light-emitting element in the second direction. The plurality of second-2 light-emitting elements are arranged in parallel in the first direction, and the second-2 light-emitting elements can share an anode electrode connected to the pixel circuit of the second-type sub-pixel.

[0208] In a display device according to an embodiment, the third-type sub-pixel includes a third-1 light-emitting element having a third-1 light-emitting region with a structure longer in the first direction than in the second direction, and a plurality of third-2 light-emitting elements having a size smaller than that of the third-1 light-emitting region and having a plurality of third-2 light-emitting regions separated from the third-1 light-emitting element in the second direction. The plurality of third-2 light-emitting elements are arranged in parallel in the first direction and are arranged adjacent to the plurality of second-2 light-emitting elements in the second direction. The third-2 light-emitting elements can share an anode electrode connected to the pixel circuit of the third-type sub-pixel.

[0209] In a display device according to an embodiment, the light control array includes first-1 light control elements, second-1 light control elements, and third-1 light control elements that are individually superimposed on the first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element, and a plurality of first-2 light control elements, a plurality of second-2 light control elements, and a plurality of third-2 light control elements that are individually superimposed on the plurality of first-2 light-emitting elements, the plurality of second-2 light-emitting elements, and the plurality of third-2 light-emitting elements. The size of the light incident surface of each of the first-1 light control element, the second-1 light control element, and the third-1 light control element may be larger than the size of the light incident surface of each of the plurality of first-2 light control elements, the plurality of second-2 light control elements, and the plurality of third-2 light control elements.

[0210] In a display device according to an embodiment, the first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element have light-emitting regions with different sizes for different colors, the plurality of first-2 light-emitting elements, the plurality of second-2 light-emitting elements, and the plurality of third-2 light-emitting elements have light-emitting regions with different sizes for different colors, the first-1 light control element, the second-1 light control element, and the third-1 light control element have a light incident surface size proportional to the size of the light-emitting region of the first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element, and the plurality of first-2 light control elements, the plurality of second-2 light control elements, and the plurality of third-2 light control elements can have a light incident surface size proportional to the size of the light-emitting region of the plurality of first-2 light-emitting elements, the plurality of second-2 light-emitting elements, and the plurality of third-2 light-emitting elements.

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

[0212] In a display device according to an embodiment, each of a plurality of sensor electrodes may include a first sensor electrode portion disposed in a non-light-emitting region around a plurality of first-2 light-emitting elements of a first-type sub-pixel, a second sensor electrode portion disposed in a non-light-emitting region around a plurality of second-2 light-emitting elements of a second-type sub-pixel adjacent to the first-type sub-pixel, the second sensor electrode portion being symmetric to the first sensor electrode portion in a second direction, and a third sensor electrode portion connecting the first sensor electrode portion and the second sensor electrode portion.

[0213] In a display device according to an embodiment, the touch sensor array may further include a bridge electrode that is disposed to overlap with a sensor electrode with a touch insulating layer therebetween, and the bridge electrode is connected to the first sensor electrode portion and the second sensor electrode portion via a plurality of contact portions, and a third sensor electrode portion may be disposed in a second direction between the plurality of contact portions.

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

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

[0216] In a display device according to an embodiment, the first bridge electrode portion and the second bridge electrode portion extending along the first column line may have a pattern form in which an interval therebetween in the first direction is variable along the second direction.

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

[0218] In a display device according to an embodiment, the first and second bridge electrode portions extending along the first column line can have a slant pattern form that overlaps via a dummy electrode and a sensor electrode between a portion with a maximum mutual interval and a portion with a minimum mutual interval.

[0219] In a display device according to an embodiment, each of the plurality of contact portions includes a third bridge electrode portion disposed on a first touch insulating layer on a sealing layer, a second touch insulating layer disposed on the first touch insulating layer where the third bridge electrode portion is disposed and having a first contact hole exposing the third bridge electrode, a black matrix disposed on the second touch insulating layer and having an opening larger than the first contact hole, a second touch insulating layer disposed on the second touch insulating layer where the black matrix is disposed and having a second contact hole larger than the size of the first contact hole and smaller than the opening, a third touch insulating layer having a third contact hole larger than the opening, and a sensor electrode disposed on the third touch insulating layer and connected to the third bridge electrode portion via the third, second, and first contact holes.

[0220] In a display device according to an embodiment, the touch sensor array is disposed in a non-light-emitting region of the second column line and includes a plurality of dummy electrodes disposed separately from and electrically floating from sensor electrodes disposed in the same layer. The plurality of dummy electrodes can include a first dummy electrode disposed in a non-light-emitting region around a plurality of second-2 light-emitting elements and a plurality of third-2 light-emitting elements adjacent to each other in the second direction, and a second dummy electrode disposed in a non-light-emitting region between the 3-1 light-emitting element and the second-1 light-emitting element adjacent to each other in the second direction.

[0221] In a display device according to an embodiment, the first dummy electrode may have a pattern form including a portion having a maximum length in a 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 between the first dummy electrode and the first-1 light control element adjacent to the first dummy electrode in the first direction.

[0222] In a display device according to an embodiment, the second dummy electrode may have a pattern form including a portion having a maximum length in a first direction in a non-light-emitting region adjacent to the 3-1 light control element in a second direction and a portion having a minimum length in the first direction in a non-light-emitting region within the second-1 light control element and adjacent to the second-1 light control element in the second direction.

[0223] In a display device according to an embodiment, the first-1 light control element, together with the sensor electrode and the black matrix, restricts the viewing angle of the light emitted from the first-1 light-emitting element within a first cut-off angle in a second direction, and each of the second-1 light control element and the 3-1 light control element, together with the dummy electrode and the black matrix, can restrict the viewing angle of the light emitted from each of the second-1 light-emitting element and the 3-1 light-emitting element within a first cut-off angle in a second direction.

[0224] In a display device according to an embodiment, the first-2 light control element, together with the sensor electrode and the black matrix, restricts the viewing angle of the light emitted from the first-2 light-emitting element within a first cut-off angle in a first direction and a second direction, and each of the second-2 light control element and the 3-2 light control element, together with the dummy electrode and the black matrix, can restrict the viewing angle of the light emitted from each of the second-2 light-emitting element and the 3-2 light-emitting element within a first cut-off angle in a first direction and a second direction.

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

[0226] In a display device according to an embodiment, a first opening of either the sensor electrode or the dummy electrode and a second opening of the black matrix overlap with the first light emitting element and the first light control element, and the size of the first opening may be larger or smaller than the size of the second opening.

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

[0228] In a display device according to an embodiment, a third overlapping portion where one end of either the sensor electrode or the dummy electrode overlaps with the end of the second light control element is separated from the end of the light emitting region of the first light emitting element. A fourth overlapping portion where the end of the black matrix overlaps with the end of the second light control element is separated from the end of the light emitting region of the second light emitting element. The area of the third overlapping portion may be larger or smaller than the area of the fourth overlapping portion.

[0229] In a display device according to an embodiment, a third opening of either the sensor electrode or the dummy electrode and a fourth opening of the black matrix overlap with the second light emitting element and the second light control element, and the size of the third opening may be larger or smaller than the size of the fourth opening.

[0230] In a display device according to an embodiment, each of the first-1, second-1, and third-1 light-emitting elements is provided in a pixel circuit of each of the first to third type sub-pixels and is connected to a first switching transistor controlled by a first mode signal. Each of the first-2, second-2, and third-2 light-emitting elements is provided in a pixel circuit of each of the first to third type sub-pixels and is connected to a second switching transistor controlled by a second mode signal. The first and second switching transistors can be electrically connected to a driving transistor provided in a pixel circuit of each of the first to third type sub-pixels.

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

[0232] It should be apparent to those with ordinary knowledge in the technical field to which this specification belongs that this specification described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical matters of this specification. Therefore, the scope of this specification is indicated by the claims described below, and all changes or modified forms derived from the meaning, scope, and equivalent concepts of the claims should be construed as being included in the scope of this specification.

Description of Reference Numerals

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

Claims

1. A pixel array including a plurality of sub-pixels each including a pixel circuit, a first light-emitting element, and a second light-emitting element electrically connected to the pixel circuit, A sealing layer disposed to seal a light-emitting element layer including the first and second light-emitting elements on the pixel array, A touch sensor array including a black matrix, a sensor electrode, and a dummy electrode, disposed on the sealing layer and overlapping a non-light-emitting region of the pixel array, and A light control array including a first light control element overlapping the first light-emitting element and a second light control element overlapping the second light-emitting element, disposed on the touch sensor array wherein the sensor electrode is disposed in a non-light-emitting 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 a second type of sub-pixel and a third type of sub-pixel among the plurality of sub-pixels, a display device.

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

3. The first type of sub-pixel has a first-1 light-emitting element having a first-1 light-emitting region with a structure longer in the first direction than in the second direction, and a plurality of first-2 light-emitting elements having a size smaller than that of the first-1 light-emitting region and having a plurality of first-2 light-emitting regions separated in the second direction with the first-1 light-emitting element interposed therebetween wherein the plurality of first-2 light-emitting elements share an anode electrode electrically connected to a pixel circuit of the first type of sub-pixel, the display device according to claim 2.

4. The second type of sub-pixel has A second-1 light-emitting element having a second-1 light-emitting region with a structure longer in the first direction than in the second direction, and a plurality of second-2 light-emitting elements having a size smaller than that of the second-1 light-emitting region and having a plurality of second-2 light-emitting regions spaced apart from the second-1 light-emitting element in the second direction are included, wherein the plurality of second-2 light-emitting elements are arranged in parallel with the first direction, wherein the second-2 light-emitting element shares an anode electrode electrically connected to a pixel circuit of the second-type sub-pixel. The display device according to claim 3.

5. wherein the third-type sub-pixel includes a third-1 light-emitting element having a third-1 light-emitting region with a structure longer in the first direction than in the second direction, and a plurality of third-2 light-emitting elements having a size smaller than that of the third-1 light-emitting region and having a plurality of third-2 light-emitting regions spaced apart from the third-1 light-emitting element in the second direction, wherein the plurality of third-2 light-emitting elements are arranged in parallel with the first direction and are arranged adjacent to the plurality of second-2 light-emitting elements in the second direction, wherein the plurality of third-2 light-emitting elements share an anode electrode electrically connected to a pixel circuit of the third-type sub-pixel. The display device according to claim 4.

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

7. the first-1 light-emitting element, the second-1 light-emitting element, and the third-1 light-emitting element have light-emitting regions with different sizes for each color, the plurality of first-2 light-emitting elements, the plurality of second-2 light-emitting elements, and the plurality of third-2 light-emitting elements have light-emitting regions with different sizes for each color, The first light control element, the second light control element, and the third light control element have a light incident surface area proportional to the size of the light emission regions of the first light emitting element, the second light emitting element, and the third light emitting element. The plurality of first light control elements, the plurality of second light control elements, and the plurality of third light control elements have a light incident surface area proportional to the size of the light emission regions of the plurality of first light emitting elements, the plurality of second light emitting elements, and the plurality of third light emitting elements, respectively. The display device according to claim 6. **Claim 8** The touch sensor array includes a plurality of the sensor electrodes arranged along the first column line, each of the plurality of sensor electrodes being separated from another sensor electrode adjacent in the second direction with the first light emitting element therebetween. The display device according to claim 6. **Claim 9** Each of the plurality of sensor electrodes includes a first sensor electrode portion disposed in a non-light emitting region around the plurality of first light emitting elements of the first type sub-pixels, a second sensor electrode portion disposed in a non-light emitting region around the plurality of second light emitting elements of the second type sub-pixels adjacent to the first type sub-pixels and symmetric to the first sensor electrode portion in the second direction, and a third sensor electrode portion electrically connecting the first sensor electrode portion and the second sensor electrode portion. The display device according to claim 8. **Claim 10** The touch sensor array further includes a bridge electrode disposed to overlap with the sensor electrode with a touch insulating layer therebetween, the bridge electrode being electrically connected to the first sensor electrode portion and the second sensor electrode portion via a plurality of contact portions, the third sensor electrode portion being disposed between the plurality of contact portions in the second direction. The display device according to claim 9. **Claim 11** Each of the first sensor electrode portion and the second sensor electrode portion includes a first portion surrounding the second light emitting element, and a second portion overlapping with any one of the plurality of contact portions and having an area smaller than that of the first portion. The display device according to claim 10. **Claim 12** The bridge electrode includes a first bridge electrode portion and a second bridge electrode portion extending along the first column line from both side portions of the first column line, overlapping with the sensor electrode and the dummy electrode, and symmetric in the first direction. The display device according to claim 10, wherein each of the plurality of contact portions includes a third bridge electrode portion that electrically connects the first bridge electrode portion to the second bridge electrode portion.

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

14. The first and second bridge electrode portions extending along the first column line overlap with the dummy electrode at a maximum mutual interval in the first direction in the non-light-emitting region adjacent to the first-1 light control element in the first direction, In a non-light-emitting region between the plurality of contact portions and the second-1 and third-1 light control elements, it partially overlaps with the sensor electrode at a minimum mutual interval in the first direction. The display device according to claim 13.

15. The display device according to claim 14, wherein the first and second bridge electrode portions extending along the first column line have a diagonal pattern shape in which they overlap each other via the dummy electrode and the sensor electrode between the portion of the maximum mutual interval and the portion of the minimum mutual interval.

16. Each of the plurality of contact portions The third bridge electrode portion disposed on the first touch insulating layer on the sealing layer, A second touch insulating layer disposed on the first touch insulating layer on which the third bridge electrode portion is disposed and having a first contact hole exposing the third bridge electrode portion, The black matrix disposed on the second touch insulating layer and having an opening larger than the first contact hole, A third touch insulating layer disposed on the second touch insulating layer on which the black matrix is disposed and having a second contact hole larger than the size of the first contact hole and smaller than the opening, and a third contact hole larger than the opening, and The display device according to claim 12, including a sensor electrode disposed on the third touch insulating layer and electrically connected to the third bridge electrode portion through the third, second, and first contact holes.

17. The touch sensor array is disposed in a non-light-emitting region of the second column line and includes a plurality of dummy electrodes disposed separately and electrically floating from the sensor electrodes disposed in the same layer. The plurality of dummy electrodes are a first dummy electrode disposed in a non-light-emitting region around the plurality of second-2 light-emitting elements and the plurality of third-2 light-emitting elements adjacent to each other in the second direction, and a second dummy electrode disposed in a non-light-emitting region between the 3-1 light-emitting element and the second-1 light-emitting element adjacent to each other in the second direction The display device according to claim 8, comprising

18. wherein the first dummy electrode has 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 between the adjacent first-1 light control elements in the first direction, The display device according to claim 17.

19. wherein the second dummy electrode has 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 second-1 light control element in the second direction, The display device according to claim 17.

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

21. A first overlapping portion where 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 is separated from an end of the light-emitting region of the first light-emitting element in the second direction, A second overlapping portion where an end of the black matrix overlaps with an end of the first light control element in the second direction is separated from an end of the light-emitting region of the first light-emitting element in the second direction, The area of the first overlapping portion is larger or smaller than the area of the second overlapping portion. The display device according to claim 1.

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

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

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

25. One of the third openings of either the sensor electrode or 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 display device according to claim 1, wherein the size of the third opening is larger or smaller than the size of the fourth opening.

26. Each of the first-1, second-1, and third-1 light-emitting elements is connected to a first switching transistor provided in the pixel circuit of each of the first to third type sub-pixels and controlled by a first mode signal. Each of the first-2, second-2, and third-2 light-emitting elements is connected to a second switching transistor provided in the pixel circuit of each of the first to third type sub-pixels and controlled by a second mode signal. The first and second switching transistors are electrically connected to a driving transistor provided in each pixel circuit of the first to third type sub-pixels. The display device according to claim 5.

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