Display device

Abstract

A display device is provided. The display device includes: a substrate defining a plurality of sub-pixels; a plurality of first light-emitting elements disposed in each of the plurality of sub-pixels; a plurality of second light-emitting elements disposed in each of the plurality of sub-pixels; a plurality of first light-shielding patterns overlapping the centers of the plurality of second light-emitting elements on the plurality of second light-emitting elements; a plurality of first optical members disposed above the plurality of first light-emitting elements and refracting light from the plurality of first light-emitting elements; and a plurality of second optical members disposed above the plurality of second light-emitting elements and refracting light from the plurality of second light-emitting elements.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0201248, filed with the Korean Intellectual Property Office on December 30, 2024, the disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to a display device, and more specifically, to a display device that facilitates viewing angle control. Background Technology

[0004] With the technological development of modern society, display devices are used in various ways to provide information to users. Display devices include electronic signs that transmit visual information in only one direction, as well as various electronic devices that require higher technology to confirm user input and provide information in response to the confirmed input.

[0005] For example, display devices may be included in a vehicle to provide various information to the driver and passengers. However, the vehicle's display devices need to display content appropriately so as not to interfere with vehicle operation. For instance, the display devices need to limit the display of content that may reduce the driver's attention while the vehicle is in motion. Summary of the Invention

[0006] The purpose of this disclosure is to provide a display device that has improved brightness deviation based on viewing angle.

[0007] Another object of this disclosure is to provide a display device that can improve the visibility of displayed images.

[0008] Another object of this disclosure is to provide a display device that, when providing content at a narrow viewing angle, facilitates viewing angle control by compensating for light in the side direction where the brightness is reduced compared to the front.

[0009] The purpose of this disclosure is not limited to the foregoing, and other purposes not mentioned above will be clearly understood by those skilled in the art from the following description.

[0010] According to one aspect of this disclosure, a display device is provided. The display device includes: a substrate defining a plurality of sub-pixels; a plurality of first light-emitting elements disposed in each of the plurality of sub-pixels; a plurality of second light-emitting elements disposed in each of the plurality of sub-pixels; a plurality of first light-shielding patterns overlapping the centers of the plurality of second light-emitting elements on the plurality of second light-emitting elements; a plurality of first optical components disposed on the plurality of first light-emitting elements and refracting light from the plurality of first light-emitting elements; and a plurality of second optical components disposed on the plurality of second light-emitting elements and refracting light from the plurality of second light-emitting elements.

[0011] According to another aspect of this disclosure, a display device is provided. The display device includes: a substrate defining a plurality of sub-pixels; a plurality of light-emitting elements disposed in each of the plurality of sub-pixels; a dam defining a light-emitting area of ​​the plurality of light-emitting elements on the substrate; a plurality of optical members overlapping the light-emitting areas of the plurality of light-emitting elements on the plurality of light-emitting elements; and a plurality of first light-shielding patterns disposed in each of the plurality of sub-pixels on the plurality of light-emitting elements, wherein the plurality of light-emitting elements disposed in each of the plurality of sub-pixels includes a plurality of first light-emitting elements and a plurality of second light-emitting elements emitting the same color, and the plurality of first light-shielding patterns overlap the centers of the light-emitting areas of the plurality of first light-emitting elements and the light-emitting areas of the plurality of second light-emitting elements.

[0012] Further details of the exemplary embodiments are included in the detailed description and the accompanying drawings.

[0013] The display device according to embodiments of the present disclosure can form a uniform brightness distribution based on the viewing angle when providing content at a narrow viewing angle, thereby clearly defining the area of ​​the restricted image.

[0014] The display device according to embodiments of the present disclosure can improve the required viewing angle in narrow viewing angle mode.

[0015] The display device according to the embodiments of the present disclosure does not increase the overall brightness of the pixels to improve the side brightness, but instead separately provides pixels for improving the side brightness, thereby suppressing pixel degradation, enabling low-power operation, and improving the lifespan of the display device.

[0016] The effects of this disclosure are not limited to those illustrated above, and many more different effects are included in this specification. Attached Figure Description

[0017] The above and other aspects, features, and other advantages of this disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is an exemplary view of a display device according to an embodiment of the present disclosure.

[0019] Figure 2 This is a functional block diagram of a display device according to an embodiment of the present disclosure.

[0020] Figure 3 It is shown Figure 2 A circuit diagram of an example of pixel circuitry included in a display device.

[0021] Figure 4 This is an enlarged plan view illustrating the configuration of optical components included in a display device according to an embodiment of the present disclosure.

[0022] Figure 5 It is along Figure 4 A sectional view taken by line I-I'.

[0023] Figure 6 It is along Figure 4 The sectional view taken from line II-II'.

[0024] Figure 7 This is a graph illustrating the brightness of a display device according to a viewing angle, based on an embodiment of the present disclosure.

[0025] Figure 8 This is an enlarged plan view illustrating the configuration of optical components included in a display device according to another embodiment of the present disclosure.

[0026] Figure 9 It is along Figure 8 The sectional view taken from line III-III'. Detailed Implementation

[0027] The advantages and features of this disclosure, as well as methods for achieving these advantages and features, will become clear from the exemplary embodiments described in detail below with reference to the accompanying drawings. However, this disclosure is not limited to the exemplary embodiments disclosed herein, but will be implemented in various forms. The exemplary embodiments are provided by way of example only, so that those skilled in the art can fully understand the disclosure and scope of this disclosure.

[0028] The shapes, dimensions, ratios, angles, quantities, etc., shown in the accompanying drawings used to describe exemplary embodiments of this disclosure are merely examples, and this disclosure is not limited thereto. Throughout the specification, the same reference numerals generally denote the same elements. Furthermore, in the following description of this disclosure, detailed descriptions of known related technologies may be omitted to avoid unnecessarily obscuring the subject matter of this disclosure. Unless a term is used with the term "only," terms such as "comprising," "having," and "consisting of" as used herein are generally intended to allow for the addition of additional components. Unless expressly stated otherwise, any reference to the singular may include the plural.

[0029] Even without explicit explanation, components are interpreted as including the normal tolerance range.

[0030] Unless the term is used with the terms “adjacent” or “direct”, one or more parts may be located between the two parts when the positional relationship between the two parts is described using terms such as “above”, “over”, “below” and “next”.

[0031] When an element or layer is placed "on" another element or layer, the other layer or element can be directly inserted on or between the other element.

[0032] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from other components. Therefore, the first component mentioned below can be the second component in the technical concept of this disclosure.

[0033] Throughout the specification, the same reference numerals generally denote the same elements.

[0034] For ease of description, the dimensions and thickness of each component shown in the accompanying drawings are illustrated, and this disclosure is not limited to the dimensions and thickness of the components shown.

[0035] Features of the various embodiments of this disclosure may be combined or integrated with each other in part or in whole, and may be interconnected and operated in various technical ways, and the embodiments may be performed independently or in association with each other.

[0036] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0037] Figure 1 This is an exemplary view of a display device according to an embodiment of the present disclosure.

[0038] Reference Figure 1The display device 100 can be installed on at least a portion of the vehicle's instrument panel. The vehicle's instrument panel may include a configuration positioned in front of the vehicle's front seats (e.g., driver's seat, passenger seat). For example, the vehicle's instrument panel may have input configurations for operating various functions within the vehicle (e.g., air conditioning, audio system, navigation system).

[0039] The display device 100 can be installed on the vehicle's dashboard and can be used as an input unit for operating at least some of the vehicle's various functions. The display device 100 can provide various vehicle-related information, such as vehicle operating information (e.g., the vehicle's current speed, remaining fuel, and mileage), information about vehicle components (e.g., damage to vehicle tires), etc.

[0040] The display device 100 can span between the driver's seat and the passenger seat in the front seats of a vehicle. Users of the display device 100 can include both the driver and the passenger in the passenger seat. Both the driver and the passenger can use the display device 100.

[0041] Figure 1 The display device 100 shown may show only a portion of the display device. Figure 1 The display device 100 shown may illustrate a display panel among the various components included in the display device 100. Specifically, for example, Figure 1 The display device 100 shown can show at least a portion of the display area and non-display area of ​​the display panel. The display device 100, in addition to... Figure 1 Configurations other than those shown may be installed inside the vehicle (or at least in part).

[0042] Figure 2 This is a functional block diagram of a display device according to an embodiment of the present disclosure.

[0043] An electroluminescent display device can be used as a display device according to one embodiment of the present disclosure. The electroluminescent display device may be an organic light-emitting diode (OLED) display device, a quantum dot light-emitting diode (QD) display device, or an inorganic light-emitting diode (ILED) display device.

[0044] Reference Figure 2 The display device 100 may include a display panel PN, a data driving circuit DD, a gate driving circuit GD, and a timing controller TD.

[0045] The display panel PN can generate an image to be provided to the user. For example, the display panel PN can generate and display an image to be provided to the user through multiple pixels PX, each pixel PX having a pixel circuit.

[0046] The data drive circuit DD, the gate drive circuit GD, and the timing controller TD can provide signals for the operation of each pixel PX via signal lines. For example, the signal lines used to provide signals for the operation of each pixel PX can include multiple data lines DL and multiple gate lines GL.

[0047] Multiple data lines DL are arranged along the column direction and may include multiple lines connected to pixels PX arranged along a column direction; multiple gate lines GL are arranged along the row direction and may include multiple lines connected to pixels PX arranged along a row direction.

[0048] In some cases, the display device 100 may further include a power supply unit. In this case, signals for the operation of the pixels PX can be provided via a power line connecting the power supply unit to the display panel PN. In some embodiments, the power supply unit can provide power to the data driving circuit DD and the gate driving circuit GD. The data driving circuit DD and the gate driving circuit GD can be driven based on the power supplied from the power supply unit.

[0049] For example, the data driving circuit DD can apply data signals to each pixel PX through multiple data lines DL, the gate driving circuit GD can apply gate signals to each pixel PX through multiple gate lines GL, and the power supply unit can supply power voltage to each pixel PX through power supply voltage supply lines.

[0050] The timing controller TD can control the data drive circuit DD and the gate drive circuit GD. For example, the timing controller TD can rearrange the digital video data input from the outside to match the resolution of the display panel PN and supply the digital video data to the data drive circuit DD.

[0051] The data drive circuit DD can convert digital video data input from the timing controller TD into analog data voltage based on the data control signal, and supply the converted analog data to multiple data lines DL.

[0052] The gate driving circuit (GD) can generate scan signals and light emission signals based on gate control signals. For example, the gate driving circuit (GD) may include a scan driving unit and a light emission signal driving unit. The scan driving unit can generate scan signals in a row-sequential manner and supply the generated scan signals to scan lines to drive at least one or more scan lines connected to each pixel row. The light emission signal driving unit can generate light emission signals in a row-sequential manner and supply the generated light emission signals to light emission signal lines to drive at least one or more light emission signal lines connected to each pixel row.

[0053] According to an embodiment, the gate driving circuit GD can be disposed in the display panel PN as a gate-driver-in-panel (GIP). For example, the gate driving circuit GD can be divided into multiple parts and disposed on at least two side surfaces of the display panel PN respectively.

[0054] The display panel PN may include a display area and a non-display area surrounding the display area.

[0055] The display area of ​​the display panel PN may include multiple pixels PX arranged along the row and column directions. For example, multiple pixels PX may be arranged in the area where multiple data lines DL intersect with multiple gate lines GL.

[0056] A pixel PX can include multiple sub-pixels that emit different colors. For example, a pixel PX can use three sub-pixels to achieve blue, red, and green. However, this is not limited to the above; in some cases, a pixel PX can further include sub-pixels to achieve a specific color, such as white.

[0057] In a pixel PX, the area that realizes blue can be called a blue subpixel, the area that realizes red can be called a red subpixel, and the area that realizes green can be called a green subpixel.

[0058] Each of the multiple pixels PX may include a first light-emitting element, a second light-emitting element, and a third light-emitting element that emit the same color.

[0059] Each of the plurality of pixels PX may include a first optical component that refracts light from a first light-emitting element in a specific direction, a second optical component that refracts light from a second light-emitting element in a specific direction, and a third optical component that refracts light from a third light-emitting element in a specific direction. For example, the first, second, and third optical components may each be implemented as lenses, but embodiments of this disclosure are not limited thereto.

[0060] For example, a first optical component and a second optical component can be disposed in an optical region that provides a first range of light to form a first viewing angle, and a third optical component can be disposed in an optical region that provides a second range of light to form a second viewing angle. The second range can correspond to a range wider than the first range. Therefore, the first optical component, the second optical component, and the third optical component can limit the viewing angle of each pixel in a plurality of pixels PX.

[0061] Please refer to later Figures 4 to 6 Detailed description of the first optical component, the second optical component, and the third optical component.

[0062] The non-display area can be set along the periphery of the display area. Various components used to drive the pixel circuitry located in the pixel PX can be located in the non-display area. For example, at least a portion of the gate drive circuit GD can be located in the non-display area. The non-display area can be referred to as the border area.

[0063] When as referenced Figure 1 When the described display panel PN is used in a vehicle, the field of view of at least a portion of the display panel PN may need to be limited, depending on the user's needs. For example, in the case of images displayed in an area of ​​the display panel PN that provides entertainment functions and seat information to passengers seated in passenger seats, the field of view of the images displayed in that area may need to be limited, depending on the user's needs, because the images may interfere with the driver's driving.

[0064] Therefore, depending on the driving mode, each pixel PX included in the display panel PN can be driven in either a first mode or a second mode. For example, when a pixel PX is driven in the first mode, the first and second light-emitting elements included in the pixel PX emit light based on the selection signal, and the light from the first and second light-emitting elements is provided to a first range through the first and second optical components to form a first viewing angle, such as a narrow viewing angle. Additionally, when a pixel PX is driven in the second mode, the third light-emitting element included in the pixel PX emits light based on the selection signal, and the light from the third light-emitting element is provided to a second range through the third optical component to form a second viewing angle, such as a wide viewing angle. Here, the first mode can correspond to a mode that drives the corresponding pixel PX in a narrow field-of-view mode (privacy mode), and the second mode can correspond to a mode that controls the corresponding pixel PX in a wide field-of-view mode (sharing mode).

[0065] Figure 3 It is shown Figure 2 A circuit diagram of an example of pixel circuitry included in a display device.

[0066] on the other hand, Figure 3 The pixel circuit PC shown is represented by a reference. Figure 2 An embodiment of the pixel circuit corresponding to each of the plurality of pixels PX included in the described display device 100.

[0067] Reference Figure 3 At least some of the transistors included in the pixel circuit PC can be n-type transistors or p-type transistors. In the case of p-type transistors, a low-level voltage of each drive signal can represent the voltage that turns the TFT on, and a high-level voltage of each drive signal can represent the voltage that turns the TFT off.

[0068] Here, a low-level voltage may correspond to a pre-specified voltage that is lower than a high-level voltage. For example, a low-level voltage may include a voltage falling within the range of -8V to -12V. A high-level voltage may correspond to a pre-specified voltage that is higher than a low-level voltage. For example, a high-level voltage may include a voltage falling within the range of 12V to 16V. In some embodiments, a low-level voltage may be referred to as a first voltage, and a high-level voltage may be referred to as a second voltage. In this case, the first voltage may be a value lower than the second voltage.

[0069] The pixel circuit PC may include a driving transistor DT, multiple switching transistors ST1 to ST6, a first transistor T1, a second transistor T2, a storage capacitor Cst, and multiple light-emitting elements ED1, ED2, and ED3.

[0070] The driving transistor DT can control the driving current applied to multiple light-emitting elements ED1, ED2, and ED3 according to the source-gate voltage. The driving transistor DT may include a source connected to a high-potential power line providing a high-potential power supply voltage VDD, a gate connected to a second node N2, and a drain connected to a third node N3.

[0071] The first switching transistor ST1 can apply a data voltage Vdata from the data line DL to the first node N1. The first switching transistor ST1 may include a source connected to the data line DL, a drain connected to the first node N1, and a gate connected to a first scan signal line to which a first scan signal SCAN1 is applied. The first switching transistor ST1 can be turned on or off by the first scan signal SCAN1. Therefore, the first switching transistor ST1 can apply the data voltage Vdata from the data line DL to the first node N1 in response to a low-level (on-state) first scan signal SCAN1.

[0072] The second switching transistor ST2 can provide a diode connection between the gate and drain of the driving transistor DT. The second switching transistor ST2 may include a drain connected to the second node N2, a source connected to the third node N3, and a gate connected to the second scan signal line to which the second scan signal SCAN2 is applied. The second switching transistor ST2 can be turned on or off by the second scan signal SCAN2. Therefore, the second switching transistor ST2 can provide a diode connection between the gate and drain of the driving transistor DT in response to a low-level (on-state) second scan signal SCAN2.

[0073] The third switching transistor ST3 can apply a reference voltage Vref to the first node N1. The third switching transistor ST3 may include a source connected to the reference voltage line providing the reference voltage Vref, a drain connected to the first node N1, and a gate connected to the light emission signal line to which the light emission signal EM is applied. The third switching transistor ST3 can be turned on or off by the light emission signal EM. Therefore, the third switching transistor ST3 can transfer the reference voltage Vref to the first node N1 in response to a low-level (on-state) light emission signal EM.

[0074] The fourth switching transistor ST4 can apply a reference voltage Vref to the anode of the third light-emitting element ED3. The fourth switching transistor ST4 may include a source connected to the reference voltage line providing the reference voltage Vref, a drain connected to the anode of the third light-emitting element ED3, and a gate connected to the second scan signal line to which the second scan signal SCAN2 is applied. The fourth switching transistor ST4 can be turned on or off by the second scan signal SCAN2. Therefore, the fourth switching transistor ST4 can apply the reference voltage Vref to the anode of the third light-emitting element ED3 in response to a low-level (on-state) second scan signal SCAN2.

[0075] The fifth switching transistor ST5 can apply a reference voltage Vref to the anode of the first light-emitting element ED1 and the anode of the second light-emitting element ED2. The fifth switching transistor ST5 may include a source connected to the reference voltage line providing the reference voltage Vref, a drain connected to the anode of the first light-emitting element ED1 and the anode of the second light-emitting element ED2, and a gate connected to the second scan signal line to which the second scan signal SCAN2 is applied. The fifth switching transistor ST5 can be turned on or off by the second scan signal SCAN2. Therefore, the fifth switching transistor ST5 can apply the reference voltage Vref to the anode of the first light-emitting element ED1 and the anode of the second light-emitting element ED2 in response to a low-level (on-level) second scan signal SCAN2.

[0076] The sixth switching transistor ST6 can form a current path between the driving transistor DT and any one of the multiple light-emitting elements ED1, ED2, and ED3. The sixth switching transistor ST6 may include a source connected to the third node N3, a drain connected to the fourth node N4, and a gate connected to the light-emitting signal line to which the light-emitting signal EM is applied. The sixth switching transistor ST6 can be turned on or off by the light-emitting signal EM. Therefore, in response to a low-level (on-state) light-emitting signal EM, the sixth switching transistor ST6 can form a current path between the driving transistor DT and one of the multiple light-emitting elements ED1, ED2, and ED3 by electrically connecting the third node N3 and the fourth node N4.

[0077] The storage capacitor Cst may include a first electrode connected to a first node N1 and a second electrode connected to a second node N2. One electrode of the storage capacitor Cst may be connected to the gate of the driving transistor DT, and the other electrode of the storage capacitor Cst may be connected to the first switching transistor ST1. The storage capacitor Cst may store a constant voltage to maintain a constant gate voltage of the driving transistor DT during the period when one of the multiple light-emitting elements ED1, ED2, and ED3 emits light.

[0078] The first light-emitting element ED1 and the second light-emitting element ED2 can be connected between the first transistor T1, which is turned on or off by the first selection signal Ps, and the low-potential power line providing the low-potential power supply voltage VSS. For example, the first light-emitting element ED1 and the second light-emitting element ED2 can be connected in parallel to the first transistor T1 and the low-potential power line providing the low-potential power supply voltage VSS. The third light-emitting element ED3 can be connected between the second transistor T2, which is turned on or off by the second selection signal Ss, and the low-potential power line providing the low-potential power supply voltage VSS.

[0079] The first transistor T1 can generate a current path for the first driving current flowing through the first light-emitting element ED1 and the second light-emitting element ED2, and the second transistor T2 can generate a current path for the second driving current flowing through the third light-emitting element ED3.

[0080] The first transistor T1 is connected between the fourth node N4 and the first light-emitting element ED1, and between the fourth node N4 and the second light-emitting element ED2. The gate of the first transistor T1 can be connected to a first selection signal line that provides a first selection signal Ps. When the pixel PX of the pixel circuit PC is driven in a first mode (which is a narrow field-of-view mode), the first selection signal Ps can be supplied to the gate of the first transistor T1 to turn on the first transistor T1. Therefore, a current path is formed for the first driving current flowing through the first light-emitting element ED1 and the second light-emitting element ED2, so that the first light-emitting element ED1 and the second light-emitting element ED2 can emit light. On the other hand, the first transistor T1 can also be referred to as the first light-emitting control transistor that controls the light emission of the first light-emitting element ED1 and the second light-emitting element ED2.

[0081] The second transistor T2 is connected between the fourth node N4 and the third light-emitting element ED3. The gate of the second transistor T2 can be connected to the second selection signal line that provides the second selection signal Ss. When the pixel PX of the pixel circuit PC is driven in the second mode (which is a wide field-of-view mode), the second selection signal Ss can be supplied to the gate of the second transistor T2 to turn on the second transistor T2. Therefore, a current path is formed to flow through the second driving current of the third light-emitting element ED3, so that the third light-emitting element ED3 can emit light. On the other hand, the second transistor T2 can also be referred to as the second light-emitting control transistor that controls the light emission of the third light-emitting element ED3.

[0082] In this configuration, the first light-emitting element ED1, the second light-emitting element ED2, or the third light-emitting element ED3 can be connected to another component of the pixel circuit PC, such as the driving transistor DT, via a first transistor T1 or a second transistor T2 that is turned on according to the driving mode. For example, the first light-emitting element ED1 and the second light-emitting element ED2 are connected to the driving transistor DT via the first transistor T1 that is turned on in the first mode, and can provide light at a first viewing angle (i.e., narrow field of view) in the first mode (i.e., narrow field of view) via a first driving current. Similarly, the third light-emitting element ED3 is connected to the driving transistor DT via the second transistor T2 that is turned on in the second mode, and can provide light at a second viewing angle (i.e., wide field of view) in the second mode (i.e., wide field of view) via a second driving current. Here, the driving mode can be specified by user input or determined when pre-specified conditions are met.

[0083] Figure 4 This is an enlarged plan view illustrating the configuration of optical components included in a display device according to an embodiment of the present disclosure. Figure 5 It is along Figure 4 A sectional view taken by line I-I'. Figure 6 It is along Figure 4 The sectional view taken from line II-II'.

[0084] on the other hand, Figure 4 The plane of pixel PX is shown when pixel PX includes three sub-pixels (e.g., first sub-pixel RSP, second sub-pixel GSP, and third sub-pixel BSP).

[0085] in addition, Figure 5 The pixel PX, which is provided with a third optical element 173, is shown as an edge. Figure 4 An embodiment of the display device 100 cut along line I-I', and Figure 6 A pixel PX with a first optical component 171 and a second optical component 172 is shown as an edge. Figure 4 An embodiment of the display device 100 cut along line II-II'.

[0086] On the other hand, for ease of explanation, in Figure 5 and Figure 6 In the middle, only those related to Figure 4 The first optical region GNE and the second optical region GWE of the second sub-pixel GSP in the three sub-pixels RSP, GSP and BSP shown are corresponding regions, but the other sub-pixels RSP and BSP can also be formed in the same configuration.

[0087] On the other hand, for ease of explanation, the horizontal direction on the plane will be shown as the first direction X, and the vertical direction on the plane will be shown as the second direction Y. Furthermore, the normal direction of the surface defined by the first direction X and the second direction Y (e.g., the thickness direction of the display device 100) can be defined as the third direction Z.

[0088] Reference Figure 4 A pixel PX may include multiple sub-pixels RSP, GSP, and BSP that represent different colors. For example, a pixel PX may include a first sub-pixel RSP that represents red, a second sub-pixel GSP that represents green, and a blue sub-pixel BSP that represents blue. According to an embodiment, the first sub-pixel RSP may be named the red sub-pixel, the second sub-pixel GSP may be named the green sub-pixel, and the third sub-pixel BSP may be named the blue sub-pixel. (See also...) Figure 3 The pixel circuit PC described can be set in each of the multiple sub-pixels RSP, GSP and BSP included in pixel PX.

[0089] Multiple sub-pixels RSP, GSP, and BSP may include first optical regions RNE, GNE, and BNE that provide different viewing angles, and second optical regions RWE, GWE, and BWE, respectively.

[0090] The first optical regions RNE, GNE, and BNE of the corresponding pixel PX of sub-pixels RSP, GSP, and BSP can operate independently of the second optical regions RWE, GWE, and BWE. For example, sub-pixels RSP, GSP, and BSP may include a first light-emitting element ED1 and a second light-emitting element ED2 disposed in the first optical regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP, and a third light-emitting element ED3 disposed in the second optical regions RWE, GWE, and BWE. In this case, the third light-emitting element ED3 can emit light independently of the first light-emitting element ED1 and the second light-emitting element ED2.

[0091] The number of light-emitting elements defined within the first optical regions RNE, GNE, and BNE for sub-pixels RSP, GSP, and BSP can be greater than the number of light-emitting elements defined within the second optical regions RWE, GWE, and BWE. In this case, the efficiency deviations of the first light-emitting element ED1 and the second light-emitting element ED2 located in the first optical regions RNE, GNE, and BNE, respectively, can compensate for each other.

[0092] For example, in a pixel PX, the following can be provided: a first light-emitting element ED1 and a second light-emitting element ED2 provided in the first optical region RNE of the first sub-pixel RSP, a third light-emitting element ED3 provided in the second optical region RWE of the first sub-pixel RSP, a first light-emitting element ED1 and a second light-emitting element ED2 provided in the first optical region GNE of the second sub-pixel GSP, a third light-emitting element ED3 provided in the second optical region GWE of the second sub-pixel GSP, a first light-emitting element ED1 and a second light-emitting element ED2 provided in the first optical region BNE of the third sub-pixel BSP, and a third light-emitting element ED3 provided in the second optical region BWE of the third sub-pixel BSP.

[0093] Reference Figure 4 In the first optical regions RNE, GNE, and BNE of sub-pixels RSP, GSP, and BSP, at least one first optical component 171 may be configured to overlap with the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1, and at least one second optical component 172 may be configured to overlap with the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2. In the second optical regions RWE, GWE, and BWE of sub-pixels RSP, GSP, and BSP, at least one third optical component 173 may be configured to overlap with the third light-emitting regions RE3, GE3, and BE3 of the third light-emitting element ED3. In this case, the first optical regions RNE, GNE, and BNE may have a first viewing angle smaller than the second viewing angle, and the second optical regions RWE, GWE, and BWE may have a second viewing angle.

[0094] Refer to together Figure 4 and Figure 5 and Figure 6The display device 100 according to the embodiments of the present disclosure may include a substrate 110, a buffer layer 111, a gate insulating layer 112, an interlayer insulating layer 113, a lower protective layer 114, an outer coating layer 115, a dam 116, a first transistor T1, a second transistor T2, a first light-emitting element ED1, a second light-emitting element ED2, a third light-emitting element ED3, an encapsulation component 180, a touch insulating layer 117, a black matrix BM, a first light-shielding pattern P1, a barrier layer 118, a first optical component 171, a second optical component 172, a third optical component 173, and an optical component protective layer 119.

[0095] The substrate 110 may contain an insulating material. The substrate 110 may contain a transparent material. For example, the substrate 110 may contain glass or plastic.

[0096] A buffer layer 111 may be disposed on the substrate 110. The buffer layer 111 may comprise an insulating material. For example, the buffer layer 111 may comprise an inorganic insulating material, such as silicon oxide (SiO2). x and silicon nitride SiN x The buffer layer 111 can have a multilayer structure. For example, the buffer layer 111 can be made of silicon nitride (SiN). x The layer made of silicon oxide (SiO) x The resulting layered structure.

[0097] A buffer layer 111 may be located between the substrate 110 and the driving portions of the sub-pixels RSP, GSP, and BSP. The buffer layer 111 can suppress contamination caused by the substrate 110 during the molding process of the driving portions. For example, the upper surface of the substrate 110 facing the driving portions of the sub-pixels RSP, GSP, and BSP may be covered by the buffer layer 111. The driving portions of the sub-pixels RSP, GSP, and BSP may be located on the buffer layer 111.

[0098] A gate insulating layer 112 may be disposed on a buffer layer 111. The gate insulating layer 112 may comprise an insulating material. For example, the gate insulating layer 112 may comprise an inorganic insulating material, such as silicon oxide (SiO) or silicon nitride (SiN). The gate insulating layer 112 may comprise a material with a high dielectric constant. For example, the gate insulating layer 112 may comprise a High-K material such as hafnium oxide (HfO). The gate insulating layer 112 may have a multilayer structure.

[0099] The gate insulating layer 112 may extend between the semiconductor layers 121 and 131 of transistors T1 and T2 and the gates 122 and 132. For example, the gates 122 and 132 of the first transistor T1 and the second transistor T2 may be insulated from the semiconductor layers 121 and 131 of the first transistor T1 and the second transistor T2 by the gate insulating layer 112. The gate insulating layer 112 may cover the semiconductor layers 121 and 131 of the sub-pixels RSP, GSP, and BSP. The gate 122 of the first transistor T1 and the gate 132 of the second transistor T2 may be located on the gate insulating layer 112.

[0100] An interlayer insulating layer 113 may be disposed on the gate insulating layer 112. The interlayer insulating layer 113 may comprise an insulating material. For example, the interlayer insulating layer 113 may comprise an inorganic insulating material, such as silicon oxide (SiO) and silicon nitride (SiN). The interlayer insulating layer 113 may extend between the gates 122 and 132 and the sources 123 and 133 of the first transistor T1 and the second transistor T2, and between the gates 122 and 132 and the drains 124 and 134 of the first transistor T1 and the second transistor T2. For example, the sources 123 and 133 and the drains 124 and 134 of the first transistor T1 and the second transistor T2 may be insulated from the gates 122 and 132 by the interlayer insulating layer 113. The interlayer insulating layer 113 may cover the gates 122 and 132 of the first transistor T1 and the second transistor T2. The source 123 and 133 and the drain 124 and 134 of each sub-pixel in the sub-pixels RSP, GSP and BSP can be located on the interlayer insulating layer 113. The gate insulating layer 112 and the interlayer insulating layer 113 can expose the source and drain regions of the semiconductor layers 121 and 131 located in each sub-pixel in the sub-pixels RSP, GSP and BSP.

[0101] The lower protective layer 114 may be disposed on the interlayer insulating layer 113. The lower protective layer 114 may contain an insulating material. For example, the lower protective layer 114 may contain an inorganic insulating material, such as silicon oxide (SiO) and silicon nitride (SiN).

[0102] The lower protective layer 114 can suppress damage to the driving portion due to external moisture and impact. The lower protective layer 114 can extend along the surface of the first transistor T1 and the second transistor T2. The lower protective layer 114 can contact the interlayer insulating layer 113 on the outside of the driving portion in each of the sub-pixels RSP, GSP and BSP.

[0103] An outer coating 115 may be disposed on the lower protective layer 114. The outer coating 115 may comprise an insulating material. The outer coating 115 may comprise a material different from that of the lower protective layer 114. For example, the outer coating 115 may comprise an organic insulating material.

[0104] The outer coating 115 can eliminate the step difference caused by the driving portion of each of the sub-pixels in the sub-pixel RSP, GSP, and BSP. For example, the upper surface of the outer coating 115 opposite to the substrate 110 can be a flat surface.

[0105] The first transistor T1 and the second transistor T2 can be disposed on the substrate 110. The first transistor T1 can be electrically connected between the drain of the driving transistor DT and the first lower electrode 141 of the first light-emitting element ED1. In addition, the first transistor T1 can be electrically connected between the drain of the driving transistor DT and the second lower electrode 151 of the second light-emitting element ED2. The second transistor T2 can be electrically connected between the drain of the driving transistor DT and the third lower electrode 161 of the third light-emitting element ED3.

[0106] The first transistor T1 may include a first semiconductor layer 121, a first gate 122, a first source 123, and a first drain 124. The first transistor T1 may have the same structure as the switching transistor and the driving transistor.

[0107] For example, the first semiconductor layer 121 may be located between the buffer layer 111 and the gate insulating layer 112, and the first gate 122 may be located between the gate insulating layer 112 and the interlayer insulating layer 113. The first source 123 and the first drain 124 may be located between the interlayer insulating layer 113 and the lower protective layer 114. The first gate 122 may overlap with the channel region of the first semiconductor layer 121. The first source 123 may be electrically connected to the source region of the first semiconductor layer 121. The first drain 124 may be electrically connected to the drain region of the first semiconductor layer 121.

[0108] The second transistor T2 may include a second semiconductor layer 131, a second gate 132, a second source 133, and a second drain 134. For example, the second semiconductor layer 131 may be located in the same layer as the first semiconductor layer 121, the second gate 132 may be located in the same layer as the first gate 122, and the second source 133 and the second drain 134 may be located in the same layer as the first source 123 and the first drain 124.

[0109] The first light-emitting element ED1, the second light-emitting element ED2, and the third light-emitting element ED3 of each sub-pixel in sub-pixels RSP, GSP, and BSP can be disposed on the outer coating 115 of the corresponding sub-pixel RSP, GSP, and BSP.

[0110] The first light-emitting element ED1 can emit light that displays a specific color. For example, the first light-emitting element ED1 may include a first lower electrode 141, a first light-emitting layer 142, and a first upper electrode 143 sequentially stacked on the substrate 110.

[0111] The first lower electrode 141 may comprise a conductive material. The first lower electrode 141 may comprise a material with high reflectivity. For example, the first lower electrode 141 may comprise metals such as aluminum (Al) and silver (Ag). The first lower electrode 141 may have a multilayer structure. For example, the first lower electrode 141 may have a structure in which a reflective electrode made of metal is located between transparent electrodes made of transparent conductive materials (e.g., ITO (indium tin oxide) and IZO (indium zinc oxide)). The first lower electrode 141 may be electrically connected to the first drain 124 of the first transistor T1 through a contact hole penetrating the lower protective layer 114 and the outer coating layer 115.

[0112] The first light-emitting layer 142 can generate light with a brightness corresponding to the voltage difference between the first lower electrode 141 and the first upper electrode 143. For example, the first light-emitting layer 142 may include a light-emitting material layer (EML) comprising a light-emitting material. The light-emitting material may comprise organic materials, inorganic materials, or a mixture of materials.

[0113] The first light-emitting layer 142 may have a multilayer structure. For example, the first light-emitting layer 142 may further include at least one of a hole injection layer HIL, a hole transport layer HTL, an electron transport layer ETL, and an electron injection layer EIL.

[0114] The first upper electrode 143 may comprise a conductive material. The first upper electrode 143 may comprise a different material than the first lower electrode 141. The transmittance of the first upper electrode 143 may be higher than that of the first lower electrode 141. For example, the first upper electrode 143 may be a transparent electrode made of a transparent conductive material (e.g., ITO and IZO). Therefore, in the display device 100 according to an embodiment of the present disclosure, light generated by the first light-emitting layer 142 can be emitted through the first upper electrode 143.

[0115] The second light-emitting element ED2 can achieve the same color as the first light-emitting element ED1 disposed in the same sub-pixel RSP, GSP, and BSP. For example, the second light-emitting element ED2 may include a second lower electrode 151, a second light-emitting layer 152, and a second upper electrode 153 sequentially stacked on the substrate 110.

[0116] The second lower electrode 151 can correspond to the first lower electrode 141, the second light-emitting layer 152 can correspond to the first light-emitting layer 142, and the second upper electrode 153 can correspond to the first upper electrode 143. For example, the second lower electrode 151 can be integrally implemented with the first lower electrode 141. Therefore, the second lower electrode 151 of the second light-emitting element ED2 can be electrically connected to the first drain 124 or the first source 123 of the first transistor T1. In addition, the second light-emitting layer 152 can be integrally implemented with the first light-emitting layer 142, and the second upper electrode 153 can be integrally implemented with the first upper electrode 143. For example, the first light-emitting element ED1 and the second light-emitting element ED2 can be defined as a single light-emitting element integrally formed with each other and receiving the same signal. Therefore, the first light-emitting element ED1 can be defined as part of a light-emitting element, and the second light-emitting element ED2 can be defined as another part of a light-emitting element. However, this disclosure is not limited thereto. In some cases, at least a portion of the configuration of the first light-emitting element ED1 and the second light-emitting element ED2 can be formed differently. For example, the first light-emitting element ED1 and the second light-emitting element ED2 can be formed as independent light-emitting elements connected to different transistors.

[0117] The third light-emitting element ED3 can achieve the same color as the first light-emitting element ED1 disposed in the same sub-pixel RSP, GSP, and BSP. For example, the third light-emitting element ED3 may include a third lower electrode 161, a third light-emitting layer 162, and a third upper electrode 163 sequentially stacked on the substrate 110.

[0118] The third lower electrode 161 can correspond to the first lower electrode 141 and the second lower electrode 151, the third light-emitting layer 162 can correspond to the first light-emitting layer 142 and the second light-emitting layer 152, and the third upper electrode 163 can correspond to the first upper electrode 143 and the second upper electrode 153. For example, the third lower electrode 161 can have the same structure as the first lower electrode 141 and the second lower electrode 151, the third light-emitting layer 162 can have the same structure as the first light-emitting layer 142 and the second light-emitting layer 152, and the third upper electrode 163 can have the same structure as the first upper electrode 143 and the second upper electrode 153. The first lower electrode 141 and the second lower electrode 151 of each sub-pixel in the sub-pixels RSP, GSP, and BSP are connected to each other and can be spaced apart from the third lower electrode 161 of the corresponding sub-pixel RSP, GSP, and BSP. Therefore, the third lower electrode 161 of the third light-emitting element ED3 can be electrically connected to the second drain 134 or the second source 133 of the second transistor T2 through a contact hole penetrating the lower protective layer 114 and the outer coating layer 115. Furthermore, the third light-emitting layer 162 may be spaced apart from the first light-emitting layer 142 and the second light-emitting layer 152. Therefore, in the display device according to the embodiments of the present disclosure, light emission due to leakage current can be suppressed. However, this is not limited to the above, and in some cases, at least a portion of the configurations of the first light-emitting element ED1, the second light-emitting element ED2, and the third light-emitting element ED3 may be formed differently.

[0119] According to embodiments of the present disclosure, in the display device 100, light can be generated from the first light-emitting layer 142 and the second light-emitting layer 152 or only from the third light-emitting layer 162, depending on the user's selection or pre-specified conditions.

[0120] The dam 116 can be disposed in each of the sub-pixels RSP, GSP, and BSP. The dam 116 can contain insulating material. For example, the dam 116 can contain organic insulating material.

[0121] The first lower electrode 141 and the second lower electrode 151 of each of the sub-pixels RSP, GSP, and BSP can be insulated from the third lower electrode 161 of the corresponding sub-pixels RSP, GSP, and BSP by the dike 116. For example, the dike 116 can cover the edges of the first lower electrode 141 and the third lower electrode 161 between the first lower electrode 141 and the third lower electrode 161, and can also cover the edges of the second lower electrode 151 and the third lower electrode 161 between the second lower electrode 151 and the third lower electrode 161.

[0122] The embankment 116 can distinguish the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1, the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2, and the third light-emitting regions RE3, GE3, and BE3 of the third light-emitting element ED3. For example, the embankment 116 can cover the edge region of the first lower electrode 141 to distinguish the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1. The embankment 116 can cover the edge region of the second lower electrode 151 to distinguish the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2. The embankment 116 can cover the edge region of the third lower electrode 161 to distinguish the third light-emitting regions RE3, GE3, and BE3 of the third light-emitting element ED3. In this case, the embankment 116 can cover a portion of one of the lower electrodes disposed in the first optical regions RNE, GNE, and BNE to distinguish the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 and the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2. For example, the first lower electrode 141 of the first light-emitting element ED1 and the second lower electrode 151 of the second light-emitting element ED2 can be connected to each other to form a lower electrode, and the embankment 116 can cover a portion of the lower electrode to distinguish the first lower electrode 141 and the second lower electrode 151. For example, the embankment 116 can cover the boundary between the first lower electrode 141 and the second lower electrode 151. In this case, the portion of the first lower electrode 141 exposed by the embankment 116 can be defined as the first light-emitting regions RE1, GE1, and BE1, and the portion of the second lower electrode 151 exposed by the embankment 116 can be defined as the second light-emitting regions RE2, GE2, and BE2. On the other hand, referring to... Figure 4 The dimensions of the third light-emitting regions RE3, GE3, and BE3 of the third light-emitting element ED3, which are divided within each of the sub-pixels RSP, GSP, and BSP, can be larger than, but not limited to, the dimensions of the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 and the dimensions of the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2. Furthermore, the dimensions of the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 and the dimensions of the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2, which are divided within the sub-pixels RSP, GSP, and BSP, can be the same as, but not limited to, the dimensions of the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 and the dimensions of the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2.

[0123] The first light-emitting layer 142 and the first upper electrode 143 of the first light-emitting element ED1 located in each of the sub-pixels RSP, GSP, and BSP can be stacked on the portion of the corresponding first lower electrode 141 exposed by the dam 116. Specifically, the first light-emitting layer 142 and the first upper electrode 143 can be stacked on the portion of the corresponding first lower electrode 141 exposed by the dam 116 and on the dam 116. The second light-emitting layer 152 and the second upper electrode 153 of the second light-emitting element ED2 located in each of the sub-pixels RSP, GSP, and BSP can be stacked on the portion of the corresponding second lower electrode 151 exposed by the dam 116. Specifically, the second light-emitting layer 152 and the second upper electrode 153 can be stacked on the portion of the corresponding second lower electrode 151 exposed by the dam 116 and on the dam 116. The third light-emitting layer 162 and the third upper electrode 163 of the third light-emitting element ED3 located in each of the sub-pixels RSP, GSP, and BSP can be stacked on the portion of the corresponding third lower electrode 161 exposed by the embankment 116. Specifically, the third light-emitting layer 162 and the third upper electrode 163 can be stacked on the portion of the corresponding third lower electrode 161 exposed by the embankment 116 and on the embankment 116 itself.

[0124] The first upper electrode 143 and the second upper electrode 153 of each of the sub-pixels RSP, GSP, and BSP can be electrically connected to the third upper electrode 163 of the corresponding sub-pixel RSP, GSP, and BSP. For example, the voltage applied to the first upper electrode 143 of the first light-emitting element ED1 located in each of the sub-pixels RSP, GSP, and BSP and the voltage applied to the second upper electrode 153 of the second light-emitting element ED2 can be the same as the voltage applied to the third upper electrode 163 of the third light-emitting element ED3 located in the corresponding sub-pixel RSP, GSP, and BSP. The first upper electrode 143 and the second upper electrode 153 of each of the sub-pixels RSP, GSP, and BSP can contain the same material as the third upper electrode 163 of the corresponding sub-pixel RSP, GSP, and BSP. For example, the first upper electrode 143 and the second upper electrode 153 of each of the sub-pixels RSP, GSP, and BSP can be formed simultaneously with the third upper electrode 163 of the corresponding sub-pixel RSP, GSP, and BSP. The first upper electrode 143 and the second upper electrode 153 of each of the sub-pixels RSP, GSP and BSP can extend onto the embankment 116 and directly contact the third upper electrode 163 of the corresponding sub-pixel RSP, GSP and BSP.

[0125] The encapsulation component 180 may be located on the first light-emitting element ED1, the second light-emitting element ED2, and the third light-emitting element ED3 of each of the sub-pixels RSP, GSP, and BSP. The encapsulation component 180 can suppress damage to the light-emitting elements ED1, ED2, and ED3 due to external moisture and impact. The encapsulation component 180 may have a multi-layer structure. For example, the encapsulation component 180 may include a first encapsulation layer 181, a second encapsulation layer 182, and a third encapsulation layer 183 stacked sequentially, but is not limited thereto.

[0126] The first encapsulation layer 181, the second encapsulation layer 182, and the third encapsulation layer 183 may contain insulating materials. The second encapsulation layer 182 may contain a different material than the first encapsulation layer 181 and the third encapsulation layer 183. For example, the first encapsulation layer 181 and the third encapsulation layer 183 may be inorganic encapsulation layers containing inorganic insulating materials, while the second encapsulation layer 182 may be an organic encapsulation layer containing organic insulating materials. Therefore, damage caused by external moisture and impact can be effectively suppressed in the light-emitting elements ED1 and ED2 of the display device 100.

[0127] A black matrix BM can be set on the encapsulation member 180. The black matrix BM can be configured to reduce the mixing of colors of multiple sub-pixels RSP, GSP, and BSP between multiple sub-pixels RSP, GSP, and BSP. Therefore, the black matrix BM can be configured to overlap with the embankment 116.

[0128] The first light-shielding pattern P1 can be disposed on the encapsulation member 180. The first light-shielding pattern P1 can be disposed in the first optical regions RNE, GNE, and BNE located within each of the sub-pixels RSP, GSP, and BSP. For example, the first light-shielding pattern P1 can be disposed in the second light-emitting regions RE2, GE2, and BE2 of the first optical regions RNE, GNE, and BNE.

[0129] The first light-shielding pattern P1 is disposed on the same layer as the black matrix BM and can be made of the same material as the black matrix BM. Here, the first light-shielding pattern P1 can restrict the path of light generated by the second light-emitting element ED2. For example, the first light-shielding pattern P1 can be configured to reduce the brightness of a portion of the viewing angle of the second light-emitting regions RE2, GE2, and BE2.

[0130] The first light-shielding pattern P1 can be configured to overlap with the center of the second light-emitting regions RE2, GE2, and BE2 (i.e., the center of the second light-emitting element ED2), thereby reducing the brightness of the center of the second light-emitting regions RE2, GE2, and BE2. Additionally, the first light-shielding pattern P1 can be configured to overlap with the center of the second optical component 172. The central axis of the first light-shielding pattern P1, the central axis of the second optical component 172, and the central axis of the second light-emitting element ED2 can coincide with each other. Therefore, light emitted through the second optical component 172 can be provided within a first viewing angle range, but can be provided with reduced center brightness. For example, when the distance between the second light-emitting element ED2 and the first light-shielding pattern P1 in the third direction Z is H1, and half the length of the first light-shielding pattern P1 in the first direction X is d1, the first light-shielding pattern P1 can restrict the propagation of light having a viewing angle less than or equal to tan-(d1 / H1) of the light emitted from the second light-emitting element ED2.

[0131] On the other hand, the first light-shielding pattern P1 may not be set in the first light-emitting regions RE1, GE1, and BE1 of the first optical regions RNE, GNE, and BNE and the second optical regions RWE, GWE, and BWE.

[0132] The touch insulation layer 117 can be set on the black matrix BM.

[0133] The touch insulating layer 117 can be disposed between the encapsulation member 180 and the black matrix BM and the barrier layer 118 to make the barrier layer 118 insulating.

[0134] The touch insulation layer 117 may contain an insulating material. For example, the touch insulation layer 117 may contain, but is not limited to, organic or inorganic insulating materials.

[0135] Multiple blocking layers 118 may be located on the touch insulating layer 117. Multiple blocking layers 118 may be disposed above the first light-emitting element ED1, the second light-emitting element ED2, and the third light-emitting element ED3 in the display area.

[0136] Reference Figure 5 and Figure 6 Multiple blocking layers 118 can be configured to overlap with the dike 116 and the black matrix BM. On the other hand, refer to... Figure 6 Multiple blocking layers 118 can restrict the path of light generated by the first light-emitting element ED1 and the second light-emitting element ED2. For example, the multiple blocking layers 118 can be configured to overlap with the edges of the first light-emitting regions RE1, GE1 and BE1 and the second light-emitting regions RE2, GE2 and BE2, thereby blocking light propagating in the lateral direction from the light emitted from the first light-emitting regions RE1, GE1 and BE1 and the second light-emitting regions RE2, GE2 and BE2.

[0137] For example, when the distance between the second light-emitting element ED2 and the blocking layer 118 in the third direction Z is H2, and the distance between the center of the second light-emitting element ED2 and the end of the blocking layer 118 in the first direction X is d2, the blocking layer 118 can limit the viewing angle of the second light-emitting element ED2 to tan-(d2 / H2). On the other hand, when the distance between the center of the second light-emitting element ED2 and the end of the blocking layer 118 in the first direction X is the same as the distance between the center of the first light-emitting element ED1 and the end of the blocking layer 118 in the first direction X, the blocking layer 118 can limit the viewing angle of the first light-emitting element ED1 to tan-1(d2 / H2). That is, the plurality of blocking layers 118, together with the first optical component 171 and the second optical component 172, can block light propagating in the lateral direction from light emitted from the first optical regions RNE, GNE, and BNE located in each of the sub-pixels RSP, GSP, and BSP.

[0138] The multiple barrier layers 118 can be made of the same material as the multiple touch electrodes. For example, the multiple barrier layers 118 can contain metallic materials such as titanium (Ti), aluminum (Al), silver (Ag), copper (Cu), magnesium-silver alloy (Mg:Ag), etc., but are not limited thereto. On the other hand, a touch buffer layer can be further provided between the encapsulation member 180 and the barrier layers 118, but is not limited thereto.

[0139] Although not shown in the figure, multiple touch electrodes may be disposed on the touch insulating layer 117. The multiple touch electrodes may be configured to be spaced apart from each other on the touch insulating layer 117. The multiple touch electrodes may be configured to sense external touch input using a user's finger or stylus, etc. In addition to the touch electrodes, touch bridging electrodes may also be disposed on the packaging member 180, but are not limited thereto.

[0140] Reference Figure 5 and Figure 6 The first optical component 171, the second optical component 172 and the third optical component 173 can be disposed on the touch insulating layer 117.

[0141] The first optical component 171, the second optical component 172, and the third optical component 173 may be disposed on the same layer as the plurality of blocking layers 118 on the touch insulating layer 117. For example, the first optical component 171, the second optical component 172, and the third optical component 173 may be configured to respectively cover the edges of the plurality of blocking layers 118.

[0142] The first optical component 171 can be disposed on the first light-emitting element ED1. Light generated by the first light-emitting element ED1 of each of the sub-pixels RSP, GSP, and BSP can be emitted by the first optical component 171 disposed in the first optical regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP. The first optical component 171 can restrict the propagation direction of the transmitted light to a first direction X and / or a second direction Y. For example, the planar shape of the first optical component 171 located within each of the sub-pixels RSP, GSP, and BSP can be circular. For example, the first optical component 171 can be hemispherical. However, this disclosure is not limited thereto, and the planar shape of the first optical component 171 located within each of the sub-pixels RSP, GSP, and BSP can also be polygonal.

[0143] The second optical component 172 can be disposed on the second light-emitting element ED2. Light generated by the second light-emitting element ED2 of each of the sub-pixels RSP, GSP, and BSP can be emitted by the second optical component 172 disposed in the first optical regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP. The second optical component 172 can restrict the propagation direction of the transmitted light to a first direction X and / or a second direction Y. For example, the shape of the second optical component 172 located in each of the sub-pixels RSP, GSP, and BSP can be the same as the shape of the first optical component 171. For example, the planar shape of the second optical component 172 can be circular. For example, the second optical component 172 can be hemispherical. However, it is not limited to this; the planar shape of the second optical component 172 located in each of the sub-pixels RSP, GSP, and BSP can be polygonal.

[0144] In this configuration, the propagation direction of light emitted from the first optical regions RNE, GNE, and BNE of each of the sub-pixels RSP, GSP, and BSP can be restricted to a first direction X and / or a second direction Y. For example, the content (or image) provided by the first optical regions RNE, GNE, and BNE of each of the sub-pixels RSP, GSP, and BSP can be kept separate from those around the user. Therefore, the content provided by light emitted through the first optical component 171 and the second optical component 172 can be provided with a first viewing angle range, which is narrower than the viewing angle provided by light emitted through the third optical component 173. For example, the content provided by light emitted through the first optical component 171 can be provided in a narrow field-of-view mode (privacy mode).

[0145] The third optical component 173 can be disposed on the third light-emitting element ED3. Light generated by the third light-emitting element ED3 of each of the sub-pixels RSP, GSP and BSP can be emitted by the third optical component 173 disposed in the second optical regions RWE, GWE and BWE of the corresponding sub-pixels RSP, GSP and BSP.

[0146] The third optical element 173 may have a different shape than the first optical element 171 and the second optical element 172. The third optical element 173 may have a shape that does not restrict light in at least one direction. For example, the planar shape of the third optical element 173 located within each of the sub-pixels RSP, GSP, and BSP may have a strip shape extending in the first direction X. For example, the third optical element 173 may have a semi-cylindrical shape extending in the first direction X.

[0147] In this configuration, the propagation direction of light emitted from the second optical regions RWE, GWE, and BWE of each of the sub-pixels RSP, GSP, and BSP is not limited to the first direction X. For example, content (or images) provided through the second optical regions RWE, GWE, and BWE of each of the sub-pixels RSP, GSP, and BSP can be shared with the user and people in the vicinity adjacent in the first direction X. Therefore, content provided by light emitted through the third optical component 173 can be provided with a second viewing angle, which is a wider viewing angle than content provided by light emitted through the first optical component 171 and the second optical component 172. For example, content provided by light emitted through the third optical component 173 can be provided in a wide field-of-view mode (sharing mode).

[0148] The first light-emitting regions RE1, GE1, and BE1 of each of the sub-pixels RSP, GSP, and BSP can have shapes corresponding to the first optical components 171 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of the first light-emitting regions RE1, GE1, and BE1 of each of the sub-pixels RSP, GSP, and BSP can be circular or polygonal. The first optical component 171 can have a larger size than the first light-emitting regions RE1, GE1, and BE1 of the corresponding sub-pixels RSP, GSP, and BSP. Therefore, the efficiency of light emitted from the first light-emitting regions RE1, GE1, and BE1 of the sub-pixels RSP, GSP, and BSP can be improved.

[0149] The second light-emitting regions RE2, GE2, and BE2 of each of the sub-pixels RSP, GSP, and BSP can have shapes corresponding to the second optical components 172 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of the second light-emitting regions RE2, GE2, and BE2 of each of the sub-pixels RSP, GSP, and BSP can be circular or polygonal. The second optical component 172 can have a larger size than the second light-emitting regions RE2, GE2, and BE2 of the corresponding sub-pixels RSP, GSP, and BSP. Therefore, the efficiency of light emitted from the second light-emitting regions RE2, GE2, and BE2 of the sub-pixels RSP, GSP, and BSP can be improved.

[0150] The third light-emitting regions RE3, GE3, and BE3 of each pixel PX can have shapes corresponding to the third optical components 173 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of the third light-emitting regions RE3, GE3, and BE3 of each of the sub-pixels RSP, GSP, and BSP can have a stripe extending in the first direction X. The third optical component 173 can have a larger size than the third light-emitting regions RE3, GE3, and BE3 of the corresponding sub-pixels RSP, GSP, and BSP. Therefore, the efficiency of light emitted from the third light-emitting regions RE3, GE3, and BE3 of the sub-pixels RSP, GSP, and BSP can be improved.

[0151] An optical component protective layer 119 may be located on the first optical component 171, the second optical component 172, and the third optical component 173 of the sub-pixels RSP, GSP, and BSP. The optical component protective layer 119 may comprise an insulating material. For example, the optical component protective layer 119 may comprise an organic insulating material. The refractive index of the optical component protective layer 119 may be lower than the refractive index of the first optical component 171, the second optical component 172, and the third optical component 173 located within each of the sub-pixels RSP, GSP, and BSP. Therefore, in the display device 100 according to an embodiment of the present disclosure, light passing through the first optical component 171, the second optical component 172, and the third optical component 173 of each of the sub-pixels RSP, GSP, and BSP may not be reflected towards the substrate 110 due to the difference in refractive index with the optical component protective layer 119.

[0152] Below, refer to Figure 7 The brightness is described based on the viewing angle in the first optical regions RNE, GNE, and BNE.

[0153] Figure 7 This is a graph illustrating the brightness of a display device according to a viewing angle, based on an embodiment of the present disclosure. Figure 7The embodiment illustrates the brightness of the viewing angle in the first optical regions RNE, GNE, and BNE of the display device 100 according to one embodiment of the present disclosure. The comparative example differs from the embodiment of the present disclosure only in that the first light-shielding pattern P1 is not provided.

[0154] exist Figure 7 In each of the comparative examples and embodiments, the frontal direction is defined as having a viewing angle of 0°, and the brightness in the frontal direction is defined as 100%.

[0155] Reference Figure 7 It can be confirmed that the comparative examples and embodiments limit the viewing angle to below about -40° and above about 40°, and provide light in a viewing angle range of about -40° to about 40°.

[0156] The comparative example exhibits approximately 90% brightness at a viewing angle of approximately -10° to approximately 10°, and it can be confirmed that the brightness decreases to less than approximately 90% at viewing angles below approximately -10° and above approximately 10°. On the other hand, this embodiment exhibits approximately 90% brightness at a viewing angle of approximately -20° to approximately 20°, and it can be confirmed that the brightness decreases to less than approximately 90% at viewing angles below approximately -20° and above approximately 20°. Furthermore, it can be confirmed that the brightness of the embodiment is increased more than that of the comparative example at viewing angles of approximately -30° to approximately -10° and at viewing angles of approximately 10° to approximately 30°.

[0157] When a display device is used in a vehicle, at least a portion of the display device's field of view needs to be limited according to the user's requirements. For example, it is necessary to limit the propagation direction of light passing through the optical components by placing optical components on the light-emitting elements. However, when light emitted through the optical components provides an image in a narrow field-of-view mode, the larger the angle, the more light transmitted through the optical components is refracted, and the emitted light is limited. For example, in the case of an image in a narrow field-of-view mode, the light emitted from the display device is limited as the viewing angle increases. Therefore, the viewing angle deviation between the front and side surfaces can be significant. For example, when light emitted through the optical components is provided with a viewing angle range of about -40° to about 40°, the brightness can be displayed as about 20% to about 70% compared to the front at viewing angles of about -30° to about -20° and about 20° to about 30°.

[0158] Therefore, a display device 100 according to an embodiment of the present disclosure can improve brightness deviation based on viewing angle by disposing of a plurality of first light-shielding patterns P1 in first optical regions RNE, GNE, and BNE in which the propagation direction of light is restricted to a first direction X and / or a second direction Y. For example, the first light-shielding patterns P1 disposed in the first optical regions RNE, GNE, and BNE can be disposed at the center of the second light-emitting regions RE2, GE2, and BE2 to reduce the center brightness of the second light-emitting regions RE2, GE2, and BE2. Therefore, the relative ratio of the lateral brightness of the second light-emitting regions RE2, GE2, and BE2 propagating between the first light-shielding pattern P1 and the blocking layer 118 to the center brightness of the second light-emitting regions RE2, GE2, and BE2 can be increased. Therefore, the light emitted from the second light-emitting regions RE2, GE2, and BE2 in the first optical regions RNE, GNE, and BNE can compensate for the brightness relative to the lateral viewing angle of the disposed first light-emitting regions RE1, GE1, and BE1, for example, the brightness at a viewing angle of about -30° to about -20° and at a viewing angle of about 20° to about 30°. Therefore, the viewing angle deviation of the image displayed according to the first optical regions RNE, GNE, and BNE of each of the sub-pixels RSP, GSP, and BSP can be reduced, and user visibility can be improved. Thus, the area of ​​the image that needs to be restricted in narrow viewing angle mode can be clearly defined.

[0159] Furthermore, according to one embodiment of this disclosure, the display device 100 reduces the deviation in viewing angle based on the image by lowering the center brightness of the second light-emitting element ED2 without increasing the overall brightness of the first light-emitting element ED1 and / or the second light-emitting element ED2 disposed in the first optical regions RNE, GNE, and BNE, thereby improving the side brightness in the first optical regions RNE, GNE, and BNE. Therefore, the degradation of the first light-emitting element ED1 and / or the second light-emitting element ED2 disposed in the first optical regions RNE, GNE, and BNE is suppressed, low-power driving is possible, and the lifespan of the display device 100 can be improved.

[0160] Figure 8 This is an enlarged plan view illustrating the configuration of optical components included in a display device according to another embodiment of the present disclosure. Figure 9 It is based on Figure 8 Sectional view of III-III'. Figure 9 A pixel PX is shown, which is provided with a first optical component 171, a second optical component 172 and a fourth optical component 874. Figure 8 and Figure 9 Display device 800 and Figures 1 to 6The only difference between the display device 100 and the other devices is that the embankment 816 and the multiple blocking layers 818 are different, and a fourth light-emitting element ED4 and a second light-shielding pattern P2 are added. The other configurations are basically the same, so repeated descriptions are omitted.

[0161] For ease of explanation, Figure 9 In the middle, only those related to Figure 8 The first optical region GNE of the second sub-pixel GSP in the three sub-pixels RSP, GSP and BSP shown is the region corresponding to the first optical region of GNE, but the other sub-pixels RSP and BSP can also be formed in the same configuration.

[0162] The fourth light-emitting element ED4 can be disposed in the first optical regions RNE, GNE, and BNE of each of the sub-pixels RSP, GSP, and BSP. For example, a pixel PX may include the fourth light-emitting element ED4 disposed in the first optical region RNE of the first sub-pixel RSP, the fourth light-emitting element ED4 disposed in the first optical region GNE of the second sub-pixel GSP, and the fourth light-emitting element ED4 disposed in the first optical region BNE of the third sub-pixel BSP.

[0163] On the other hand, Figure 9 In this configuration, the fourth light-emitting element ED4, the first light-emitting element ED1, and the second light-emitting element ED2 are sequentially disposed in the second sub-pixel GSP and the third sub-pixel BSP along the first direction X. Furthermore, the second light-emitting element ED2 and the fourth light-emitting element ED4 are sequentially disposed in the first sub-pixel RSP along the first direction X, and the fourth light-emitting element ED4 is spaced apart from the first light-emitting element ED1 in the first direction X. However, the placement of the fourth light-emitting element ED4 in each of the sub-pixels RSP, GSP, and BSP is not limited to this. For example, the luminous efficiency and area of ​​each of the sub-pixels RSP, GSP, and BSP can be considered when configuring the fourth light-emitting element ED4.

[0164] In this case, the fourth light-emitting element ED4 can achieve the same color as the first light-emitting element ED1, the second light-emitting element ED2, and the third light-emitting element ED3 set in the same sub-pixel RSP, GSP, and BSP.

[0165] The fourth light-emitting element ED4 may include a fourth lower electrode 891, a fourth light-emitting layer 892 and a fourth upper electrode 893 sequentially stacked on the substrate 110.

[0166] The fourth lower electrode 891 may correspond to the first lower electrode 141 and the second lower electrode 151. For example, the fourth lower electrode 891 may be integrated with the first lower electrode 141 and the second lower electrode 151. (Refer to...) Figure 9The fourth lower electrode 891 of the fourth light-emitting element ED4 can be electrically connected to the drain 124 of the first transistor T1. Therefore, the fourth light-emitting element ED4 can emit light together with the first light-emitting element ED1 and the second light-emitting element ED2 connected to the first transistor T1. In addition, the fourth light-emitting element ED4 can emit light independently of the third light-emitting element ED3 connected to the second transistor T2.

[0167] The embankment 816 can be set in each of the sub-pixels RSP, GSP and BSP.

[0168] The embankment 816 can distinguish the first light-emitting regions RE1, GE1 and BE1 of the first light-emitting element ED1, the second light-emitting regions RE2, GE2 and BE2 of the second light-emitting element ED2, the third light-emitting regions RE3, GE3 and BE3 of the third light-emitting element ED3, and the fourth light-emitting regions RE4, GE4 and BE4 of the fourth light-emitting element ED4.

[0169] On the other hand, such as Figure 9 As shown, the first lower electrode 141 of the first light-emitting element ED1, the second lower electrode 151 of the second light-emitting element ED2, and the fourth lower electrode 891 of the fourth light-emitting element ED4 can be connected to each other to form a lower electrode. In this case, the embankment 816 can cover a portion of a lower electrode to distinguish the first lower electrode 141, the second lower electrode 151, and the fourth lower electrode 891. For example, the embankment 816 can be provided at the boundary between the first lower electrode 141 and the second lower electrode 151, and at the boundary between the second lower electrode 151 and the fourth lower electrode 891, to distinguish the first lower electrode 141, the second lower electrode 151, and the fourth lower electrode 891.

[0170] A portion of the first lower electrode 141 exposed by the embankment 816 can be defined as the first light-emitting regions RE1, GE1 and BE1, a portion of the second lower electrode 151 exposed by the embankment 816 can be defined as the second light-emitting regions RE2, GE2 and BE2, and a portion of the fourth lower electrode 891 exposed by the embankment 816 can be defined as the fourth light-emitting regions RE4, GE4 and BE4.

[0171] On the other hand, although not shown in the figure, the fourth lower electrode 891 of each of the sub-pixels RSP, GSP, and BSP can be insulated from the third lower electrode 161 of the corresponding sub-pixels RSP, GSP, and BSP by the dike 816. For example, the dike 816 can cover the edges of the fourth lower electrode 891 and the third lower electrode 161 between the fourth lower electrode 891 and the third lower electrode 161.

[0172] On the other hand, refer to Figure 8The dimensions of the fourth light-emitting regions RE4, GE4, and BE4 of the fourth light-emitting element ED4, divided within each of the sub-pixels RSP, GSP, and BSP, can be smaller than, but are not limited to, the dimensions of the third light-emitting regions RE3, GE3, and BE3 of the third light-emitting element ED3. Furthermore, the dimensions of the fourth light-emitting regions RE4, GE4, and BE4 of the fourth light-emitting element ED4, divided within the sub-pixels RSP, GSP, and BSP, can be the same as, but are not limited to, the dimensions of the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 and the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2.

[0173] The fourth light-emitting layer 892 and the fourth upper electrode 893 of the fourth light-emitting element ED4 located in each of the sub-pixels RSP, GSP and BSP can be stacked on a portion of the fourth lower electrode 891 exposed by the embankment 816.

[0174] The fourth light-emitting layer 892 may correspond to the first light-emitting layer 142 and the second light-emitting layer 152. For example, the fourth light-emitting layer 892 may be integrated with the first light-emitting layer 142 and the second light-emitting layer 152.

[0175] The fourth upper electrode 893 may correspond to the first upper electrode 143 and the second upper electrode 153. For example, the fourth upper electrode 893 may be integrated with the first upper electrode 143 and the second upper electrode 153. In addition, the fourth upper electrode 893 of each of the sub-pixels RSP, GSP and BSP may be electrically connected to the first upper electrode 143, the second upper electrode 153 and the third upper electrode 163, so that the same voltage can be applied to them.

[0176] Therefore, the fourth light-emitting element ED4 can be defined as a single light-emitting element integrally formed with the first light-emitting element ED1 and the second light-emitting element ED2 and receiving the same signal. For example, the first light-emitting element ED1 can be defined as part of a light-emitting element, the second light-emitting element ED2 can be defined as another part of a light-emitting element, and the fourth light-emitting element ED4 can be defined as yet another part of a light-emitting element. However, this is not limited to this, and in some cases, the fourth light-emitting element ED4 can be formed as an independent light-emitting element, which is connected to different transistors than the first light-emitting element ED1 and the second light-emitting element ED2.

[0177] The second light-shielding pattern P2 can be disposed on the encapsulation member 180. The second light-shielding pattern P2 can be disposed in the first optical regions RNE, GNE, and BNE located within each of the sub-pixels RSP, GSP, and BSP. For example, the second light-shielding pattern P2 can be disposed in the fourth light-emitting regions RE4, GE4, and BE4 of the first optical regions RNE, GNE, and BNE.

[0178] The second light-shielding pattern P2 can be disposed on the same layer as the black matrix BM and can be made of the same material as the black matrix BM. Therefore, the second light-shielding pattern P2 can restrict the path of light generated by the fourth light-emitting element ED4. For example, the second light-shielding pattern P2 can be configured to reduce the brightness of the fourth light-emitting regions RE4, GE4, and BE4 for a portion of the viewing angle.

[0179] The second light-shielding pattern P2 can be configured to overlap with the center of the fourth light-emitting regions RE4, GE4, and BE4 (i.e., the center of the fourth light-emitting element ED4), thereby reducing the center brightness of the fourth light-emitting regions RE4, GE4, and BE4. Additionally, the second light-shielding pattern P2 can be configured to overlap with the center of the fourth optical component 874. The central axes of the second light-shielding pattern P2, the fourth optical component 874, and the fourth light-emitting element ED4 can coincide with each other. Therefore, the light emitted through the fourth optical component 874 can be provided within a first viewing angle range, but may be provided with reduced center brightness.

[0180] On the other hand, the second light-shielding pattern P2 may not be set in the first light-emitting regions RE1, GE1, and BE1 of the first optical regions RNE, GNE, and BNE and the second optical regions RWE, GWE, and BWE.

[0181] Multiple blocking layers 818 may be located on the touch insulating layer 117. Multiple blocking layers 818 may be disposed above the first light-emitting element ED1, the second light-emitting element ED2, the third light-emitting element ED3, and the fourth light-emitting element ED4 in the display area.

[0182] Multiple blocking layers 818 are configured to overlap with the edges of the first light-emitting regions RE1, GE1, and BE1, the edges of the second light-emitting regions RE2, GE2, and BE2, and the edges of the fourth light-emitting regions RE4, GE4, and BE4, to block light propagating in the lateral direction from the light emitted from the first light-emitting regions RE1, GE1, and BE1, the second light-emitting regions RE2, GE2, and BE2, and the fourth light-emitting regions RE4, GE4, and BE4. In other words, the multiple blocking layers 818, together with the first optical component 171, the second optical component 172, and the fourth optical component 874, can block light propagating in the lateral direction from the light emitted from the first optical regions RNE, GNE, and BNE.

[0183] Reference Figure 8 and Figure 9The fourth optical component 874 may be disposed on the touch insulating layer 117. The fourth optical component 874 may be configured to overlap with the fourth light-emitting regions RE4, GE4, and BE4 of the fourth light-emitting element ED4 in the first optical regions RNE, GNE, and BNE of each of the sub-pixels RSP, GSP, and BSP.

[0184] The fourth optical component 874 may be disposed on the same layer as the plurality of blocking layers 818 on the touch insulating layer 117. For example, the fourth optical component 874 may be configured to cover the edges of the plurality of blocking layers 818.

[0185] A fourth optical component 874 may be disposed on a fourth light-emitting element ED4. Light generated by the fourth light-emitting element ED4 of each of the sub-pixels RSP, GSP, and BSP can be emitted by the fourth optical component 874 disposed in the first optical regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP. The fourth optical component 874 can restrict the propagation direction of the transmitted light to a first direction X and / or a second direction Y. For example, the shape of the fourth optical component 874 located in each of the sub-pixels RSP, GSP, and BSP can be the same as the shape of the first optical component 171 and the second optical component 172. For example, the planar shape of the fourth optical component 874 can be circular. For example, the fourth optical component 874 can be hemispherical. However, it is not limited to this; the planar shape of the fourth optical component 874 located in each of the sub-pixels RSP, GSP, and BSP can be polygonal.

[0186] Therefore, the content provided by the light emitted through the fourth optical member 874 can be provided with a narrower first field of view than the content provided by the light emitted through the third optical member 173. For example, the content provided by the light emitted through the fourth optical member 874 can be provided in a narrow field-of-view mode (privacy mode).

[0187] According to another embodiment of this disclosure, the display device 800 can reduce the center brightness of the second light-emitting regions RE2, GE2, and BE2 and compensate for the side viewing angle brightness of the first light-emitting regions RE1, GE1, and BE1 by setting a first light-shielding pattern P1 at the center of the second light-emitting regions RE2, GE2, and BE2 in the first optical regions RNE, GNE, and BNE. Therefore, the viewing angle deviation of the image displayed from each of the sub-pixels RSP, GSP, and BSP in the first optical regions RNE, GNE, and BNE can be reduced, and user visibility can be improved. Therefore, the area of ​​the image that needs to be restricted in narrow viewing angle mode can be clearly defined.

[0188] A display device 800 according to another embodiment of the present disclosure can improve the overall brightness of the first optical regions RNE, GNE, and BNE by providing a fourth light-emitting element ED4 in the first optical regions RNE, GNE, and BNE. The light-emitting elements provided in the first optical regions RNE, GNE, and BNE have a smaller size than the light-emitting elements provided in the second optical regions RWE, GWE, and BWE, so as to limit the propagation direction of light to a first direction X and / or a second direction Y. Therefore, when the number of light-emitting elements provided in the first optical regions RNE, GNE, and BNE is the same as the number of light-emitting elements provided in the second optical regions RWE, GWE, and BWE, the total brightness of the first optical regions RNE, GNE, and BNE may be lower than the total brightness of the second optical regions RWE, GWE, and BWE. Therefore, the display device 800 according to another embodiment of the present disclosure can reduce the brightness difference between the first optical regions RNE, GNE, and BNE and the second optical regions RWE, GWE, and BWE by providing a fourth light-emitting element ED4 in the first optical regions RNE, GNE, and BNE.

[0189] According to another embodiment of this disclosure, the display device 800 can reduce the center brightness of the fourth light-emitting regions RE4, GE4, and BE4 and compensate for the side viewing angle brightness of the first light-emitting regions RE1, GE1, and BE1 by providing a second light-shielding pattern P2 overlapping with the fourth light-emitting regions RE4, GE4, and BE4 in the first optical regions RNE, GNE, and BNE. Therefore, the viewing angle deviation of the image displayed from the first optical regions RNE, GNE, and BNE in the sub-pixels RSP, GSP, and BSP can be reduced, and user visibility can be improved. Thus, the area of ​​the image that needs to be restricted in narrow viewing angle mode can be clearly defined.

[0190] Exemplary embodiments of this disclosure can also be described as follows:

[0191] According to one aspect of this disclosure, a display device is provided. The display device includes: a substrate defining a plurality of sub-pixels; a plurality of first light-emitting elements disposed in each of the plurality of sub-pixels; a plurality of second light-emitting elements disposed in each of the plurality of sub-pixels; a plurality of first light-shielding patterns overlapping the centers of the plurality of second light-emitting elements on the plurality of second light-emitting elements; a plurality of first optical members disposed above the plurality of first light-emitting elements and refracting light from the plurality of first light-emitting elements; and a plurality of second optical members disposed above the plurality of second light-emitting elements and refracting light from the plurality of second light-emitting elements.

[0192] The display device may further include: a dam portion disposed on a substrate and defining light-emitting areas of a plurality of first light-emitting elements and light-emitting areas of a plurality of second light-emitting elements; and a black matrix overlapping the dam portion and disposed on the same layer as the plurality of first light-shielding patterns.

[0193] Multiple first optical components and multiple second optical components can be disposed on multiple first light-shielding patterns.

[0194] The central axes of the multiple first light-blocking patterns, the multiple second optical components, and the multiple second light-emitting elements can coincide with each other.

[0195] Multiple second light-emitting elements emit light of the same color as multiple first light-emitting elements, and multiple first optical components and multiple second optical components may have a hemispherical shape.

[0196] The display device may further include: a plurality of third light-emitting elements disposed in each of a plurality of sub-pixels and emitting light of the same color as a plurality of first light-emitting elements and a plurality of second light-emitting elements; and a plurality of third optical components disposed above the plurality of third light-emitting elements and refracting light from the plurality of third light-emitting elements, and having a different shape from the plurality of first optical components and the plurality of second optical components.

[0197] Multiple third optical components can have a semi-cylindrical shape.

[0198] The display device may further include: a plurality of fourth light-emitting elements disposed in each of a plurality of sub-pixels and emitting light of the same color as a plurality of first light-emitting elements, a plurality of second light-emitting elements and a plurality of third light-emitting elements; a plurality of fourth optical members disposed above the plurality of fourth light-emitting elements and refracting light from the plurality of fourth light-emitting elements, and having the same shape as the plurality of first optical members and the plurality of second optical members; and a plurality of second light-shielding patterns overlapping the centers of the plurality of fourth light-emitting elements on the plurality of fourth light-emitting elements.

[0199] According to another aspect of this disclosure, a display device is provided. The display device includes: a substrate defining a plurality of sub-pixels; a plurality of light-emitting elements disposed in each of the plurality of sub-pixels; a dam defining a light-emitting area of ​​the plurality of light-emitting elements on the substrate; a plurality of optical members overlapping the light-emitting areas of the plurality of light-emitting elements on the plurality of light-emitting elements; and a plurality of first light-shielding patterns disposed in each of the plurality of sub-pixels on the plurality of light-emitting elements, wherein the plurality of light-emitting elements disposed in each of the plurality of sub-pixels includes a plurality of first light-emitting elements and a plurality of second light-emitting elements emitting the same color, and the plurality of first light-shielding patterns overlap the centers of the light-emitting areas of the plurality of first light-emitting elements and the light-emitting areas of the plurality of second light-emitting elements.

[0200] The plurality of optical components may include a plurality of first optical components that overlap with a plurality of first light-emitting elements and a plurality of second optical components that overlap with a plurality of second light-emitting elements and have the same shape as the plurality of first optical components.

[0201] The plurality of light-emitting elements may further include a plurality of third light-emitting elements disposed in each of the plurality of sub-pixels and emitting light of the same color as the plurality of first light-emitting elements and the plurality of second light-emitting elements, and the plurality of optical components may further include a plurality of third optical components disposed on the plurality of third light-emitting elements and refracting light from the plurality of third light-emitting elements and having a different shape from the plurality of first optical components and the plurality of second optical components.

[0202] Multiple first optical components and multiple second optical components may have a hemispherical shape, and multiple third optical components may have a semi-cylindrical shape.

[0203] The display device may further include a plurality of second light-shielding patterns disposed on each of a plurality of sub-pixels on a plurality of light-emitting elements, wherein the plurality of light-emitting elements may further include a plurality of fourth light-emitting elements disposed on each of the plurality of sub-pixels and emitting light of the same color as the plurality of first light-emitting elements, the plurality of second light-emitting elements, and the plurality of third light-emitting elements. The plurality of optical components may further include a plurality of fourth optical components disposed above the plurality of fourth light-emitting elements and refracting light from the plurality of fourth light-emitting elements, and having the same shape as the plurality of first optical components and the plurality of second optical components, and the plurality of second light-shielding patterns may overlap with the center of the plurality of fourth optical components.

[0204] The central axes of the multiple second light-shielding patterns, the multiple fourth optical components, and the multiple fourth light-emitting elements can coincide with each other.

[0205] The display device may further include a black matrix disposed on the same layer as a plurality of first light-shielding patterns and overlapping with the embankment.

[0206] Although exemplary embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the present disclosure is not limited thereto and may be embodied in many different forms without departing from the technical concept of the present disclosure. Therefore, the exemplary embodiments of the present disclosure are provided for illustrative purposes only and are not intended to limit the technical concept of the present disclosure. The scope of the technical concept of the present disclosure is not limited thereto. Therefore, it should be understood that the above exemplary embodiments are illustrative in all respects and do not limit the present disclosure. The scope of protection of the present disclosure should be interpreted based on the following claims, and all technical concepts within the scope of their equivalents should be interpreted as falling within the scope of the present disclosure.

Claims

1. A display device, comprising: A substrate, the substrate defining a plurality of sub-pixels; A plurality of first light-emitting elements, wherein the plurality of first light-emitting elements are respectively disposed in the plurality of sub-pixels; A plurality of second light-emitting elements, wherein the plurality of second light-emitting elements are respectively disposed in the plurality of sub-pixels; Multiple first light-shielding patterns, wherein the multiple first light-shielding patterns overlap with the center of the multiple second light-emitting elements on the multiple second light-emitting elements; A plurality of first optical components are disposed above the plurality of first light-emitting elements and refract light from the plurality of first light-emitting elements; as well as A plurality of second optical components are disposed above the plurality of second light-emitting elements and refract light from the plurality of second light-emitting elements.

2. The display device according to claim 1, further comprising: A dam portion is disposed on the substrate and defines the light-emitting areas of the plurality of first light-emitting elements and the light-emitting areas of the plurality of second light-emitting elements; as well as A black matrix, which overlaps with the embankment and is disposed on the same layer as the plurality of first shading patterns.

3. The display device according to claim 1, wherein, The plurality of first optical components and the plurality of second optical components are disposed above the plurality of first light-shielding patterns.

4. The display device according to claim 1, wherein, The central axes of the plurality of first light-shielding patterns, the central axes of the plurality of second optical components, and the central axes of the plurality of second light-emitting elements coincide with each other.

5. The display device according to claim 1, wherein, The plurality of second light-emitting elements emit light of the same color as the plurality of first light-emitting elements, and The plurality of first optical components and the plurality of second optical components have a hemispherical shape.

6. The display device according to claim 5, further comprising: A plurality of third light-emitting elements are respectively disposed in the plurality of sub-pixels and emit light of the same color as the plurality of first light-emitting elements and the plurality of second light-emitting elements; as well as A plurality of third optical components are disposed above the plurality of third light-emitting elements and refract light from the plurality of third light-emitting elements, and have a shape different from the plurality of first optical components and the plurality of second optical components.

7. The display device according to claim 6, wherein, The plurality of third optical components have a semi-cylindrical shape.

8. The display device according to claim 6, further comprising: A plurality of fourth light-emitting elements are respectively disposed in the plurality of sub-pixels, and emit light of the same color as the plurality of first light-emitting elements, the plurality of second light-emitting elements and the plurality of third light-emitting elements; A plurality of fourth optical components are disposed above the plurality of fourth light-emitting elements and refract light from the plurality of fourth light-emitting elements, and have the same shape as the plurality of first optical components and the plurality of second optical components; as well as Multiple second light-shielding patterns overlap the center of the multiple fourth light-emitting elements.

9. A display device, comprising: A substrate, the substrate defining a plurality of sub-pixels; Multiple light-emitting elements are respectively disposed in the multiple sub-pixels; A dam portion, wherein the dam portion defines the light-emitting area of ​​the plurality of light-emitting elements on the substrate; Multiple optical components, wherein the multiple optical components overlap with the light-emitting areas of the multiple light-emitting elements; as well as Multiple first light-blocking patterns are respectively disposed on the multiple light-emitting elements and in the multiple sub-pixels. The plurality of light-emitting elements are respectively disposed in the plurality of sub-pixels, and include a plurality of first light-emitting elements and a plurality of second light-emitting elements that emit light of the same color. The plurality of first light-shielding patterns overlap with the center of the light-emitting area of ​​the plurality of first light-emitting elements and the center of the light-emitting area of ​​the plurality of second light-emitting elements.

10. The display device according to claim 9, wherein, The plurality of optical components include a plurality of first optical components that overlap with the plurality of first light-emitting elements and a plurality of second optical components that overlap with the plurality of second light-emitting elements and have the same shape as the plurality of first optical components.

11. The display device according to claim 10, wherein, The plurality of light-emitting elements further includes a plurality of third light-emitting elements, which are respectively disposed in the plurality of sub-pixels and emit light of the same color as the plurality of first light-emitting elements and the plurality of second light-emitting elements. The plurality of optical components further include a plurality of third optical components, which are disposed above the plurality of third light-emitting elements and refract light from the plurality of third light-emitting elements, and have a shape different from the plurality of first optical components and the plurality of second optical components.

12. The display device according to claim 11, wherein, The plurality of first optical components and the plurality of second optical components have a hemispherical shape, and The plurality of third optical components have a semi-cylindrical shape.

13. The display device according to claim 11, further comprising a plurality of second light-shielding patterns respectively disposed on the plurality of light-emitting elements in the plurality of sub-pixels, in, The plurality of light-emitting elements further includes a plurality of fourth light-emitting elements, which are respectively disposed in the plurality of sub-pixels and emit light of the same color as the plurality of first light-emitting elements, the plurality of second light-emitting elements, and the plurality of third light-emitting elements. The plurality of optical components further includes a plurality of fourth optical components, which are disposed above the plurality of fourth light-emitting elements and refract light from the plurality of fourth light-emitting elements, and have the same shape as the plurality of first optical components and the plurality of second optical components. The centers of the plurality of second light-shielding patterns overlap with the centers of the plurality of fourth optical components.

14. The display device according to claim 13, wherein, The central axes of the plurality of second light-shielding patterns, the central axes of the plurality of fourth optical components, and the central axes of the plurality of fourth light-emitting elements coincide with each other.

15. The display device according to claim 9, further comprising a black matrix, the black matrix being disposed on the same layer as the plurality of first light-shielding patterns and overlapping the embankment.

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