Display device

Abstract

A display device is disclosed. The display device includes a substrate, a first light-emitting element provided over the substrate, a first optical member configured to refract light emitted from the first light-emitting element, the first optical member having a planar shape which is a shape extending in a first direction, a second light-emitting element provided over the substrate and configured to emit light having the same color as the light from the first light-emitting element, and a second optical member configured to refract light emitted from the second light-emitting element, the second optical member having a planar shape which is a shape extending in a second direction different from the first direction.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0180177, filed on December 6, 2024, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to display devices, and more specifically, to display devices capable of controlling viewing angles. Background Technology

[0004] With the advancement of technology in modern society, display devices are being used in various ways to provide information to users. Display devices can include electronic display panels that transmit visual information in only one direction, as well as various high-tech electronic devices that recognize user input and provide information in response to the recognized input.

[0005] For example, a display device may be included in a vehicle and provide various information to the driver and passengers. However, the display device in the vehicle needs to display content appropriately so as not to interfere with the operation of the vehicle. For example, the display device needs 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 capable of reducing the brightness difference caused by the difference between the upward and downward viewing angles.

[0007] Another objective of this disclosure is to provide a display device that improves the visibility of the displayed image regardless of the viewer's eye height.

[0008] Another objective of this disclosure is to provide a display device that can improve the lifespan of light-emitting elements.

[0009] The technical issues addressed in this disclosure are not limited to those mentioned above, and other technical issues not mentioned above can be clearly understood by those skilled in the art based on the following description.

[0010] A display device according to an embodiment of the present disclosure includes: a substrate; a first light-emitting element disposed on the substrate; a first optical member configured to refract light emitted from the first light-emitting element, the first optical member having a planar shape extending in a first direction; a second light-emitting element disposed on the substrate and configured to emit light having the same color as light from the first light-emitting element; and a second optical member configured to refract light emitted from the second light-emitting element, the second optical member having a planar shape extending in a second direction different from the first direction.

[0011] A display device according to another embodiment of the present disclosure includes a plurality of sub-pixels, each of the plurality of sub-pixels including a first light-emitting element and a second light-emitting element configured to emit light having the same color; a first optical member disposed on the first light-emitting element, configured to overlap with the first light-emitting element, and configured to extend horizontally in a plan view; a second optical member disposed on the second light-emitting element, configured to overlap with the second light-emitting element, and configured to extend vertically in a plan view; and a sub-pixel circuit electrically connected to the first light-emitting element and the second light-emitting element and configured to selectively operate at least one of the first light-emitting element and the second light-emitting element. A display device according to another embodiment of the present disclosure includes: a display panel extending along a first direction and a second direction different from the first direction, comprising a plurality of pixels; wherein each sub-pixel of one of the plurality of pixels includes: a first light-emitting element; a plurality of first optical members, each of the first optical members being configured to refract light emitted from the first light-emitting element and having a planar shape with a dimension in the first direction greater than a dimension in the second direction; a second light-emitting element being configured to emit light having the same color as light from the first light-emitting element; and a plurality of second optical members, each of the plurality of second optical members being configured to refract light emitted from the second light-emitting element and having a planar shape with a dimension in the first direction smaller than a dimension in the second direction.

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

[0013] The display device according to embodiments of the present disclosure includes an optical member having a planar shape extending in the vertical direction, thereby reducing brightness deviation caused by the difference between the upward and downward viewing angles.

[0014] Furthermore, the display device according to embodiments of this disclosure includes a plurality of optical components with different planar shapes, thereby providing high-quality display images from various viewing angles.

[0015] Furthermore, the display device according to embodiments of this disclosure includes an optical component having a planar shape extending in the vertical direction, thereby improving luminous efficiency and providing high-quality display images with lower power consumption.

[0016] The effects of this disclosure are not limited to those exemplified above, and include a variety of other effects. Attached Figure Description

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

[0018] Figure 1 This is an illustrative diagram 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 top plan view showing the arrangement of optical components included in a display device according to an embodiment of the present disclosure;

[0022] Figure 5 It shows along Figure 4 A cross-sectional view of an example taken from line V-V';

[0023] Figure 6 It shows along Figure 4 A cross-sectional view of an example taken from line VI-VI';

[0024] Figure 7 It shows along Figure 4 A cross-sectional view of an example taken from line VII-VII';

[0025] Figure 8 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to another embodiment of the present disclosure;

[0026] Figure 9 It shows along Figure 8 A cross-sectional view of an example intercepted by line IX-IX';

[0027] Figure 10 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to another embodiment of the present disclosure;

[0028] Figure 11 It shows along Figure 10 A cross-sectional view of an example taken from line XI-XI';

[0029] Figure 12 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to yet another embodiment of the present disclosure;

[0030] Figure 13 It shows along Figure 12 A cross-sectional view of an example intercepted by line XIII-XIII';

[0031] Figure 14 This is a graph illustrating the relative brightness of the display device according to the example and comparative examples of this disclosure in the left / right direction relative to the viewing angle; and

[0032] Figure 15 It is a graph used to explain the relative brightness of the display device in the upward / downward direction according to the viewing angle of the example and comparative examples based on this disclosure. Detailed Implementation

[0033] The advantages and features of this disclosure, as well as methods for achieving these advantages and features, will become clear from the following detailed description of exemplary embodiments in conjunction with 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 to enable those skilled in the art to fully understand the disclosure and scope of this disclosure.

[0034] The shapes, dimensions, ratios, angles, numbers, etc., shown in the accompanying drawings to describe exemplary embodiments of this disclosure are merely examples, and this disclosure is not limited thereto. Throughout this disclosure, 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. Terms such as “comprising,” “having,” and “consisting of” as used herein are generally intended to allow for the addition of additional components, unless these terms are used in conjunction with the term “only.” Unless otherwise expressly stated, any reference to the singular may include the plural.

[0035] Even without explicit explanation, components are interpreted as including the normal tolerance range.

[0036] When using terms such as “on top of,” “above,” “below,” and “beside” to describe the positional relationship between two parts, one or more parts may be located between the two parts unless these terms are used with the terms “immediately following” or “directly.”

[0037] When an element or layer is placed "on" another element or layer, the other layer or element can be directly inserted onto or between the other element.

[0038] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from other components. Therefore, the first component mentioned below may be a second component in the technical concept of this disclosure.

[0039] Throughout the disclosure, the same reference numerals generally denote the same elements.

[0040] 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.

[0041] Features of various embodiments of this disclosure may be partially or completely dependent on or combined with each other, and may be technically interlocked and operated in various ways, and the embodiments may be performed independently of each other or in relation to each other.

[0042] In the following, a display device according to an exemplary embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0043] Figure 1 This is an illustrative diagram showing a display device according to an embodiment of the present disclosure.

[0044] Reference Figure 1 The display device 100 may be disposed on at least a portion of the vehicle's dashboard. The vehicle's dashboard may include a configuration disposed on the front side of the vehicle's front seats (e.g., driver's seat or passenger seat). For example, the vehicle's dashboard may be equipped with input configurations for operating various functions within the vehicle (e.g., air conditioning, audio system, and navigation system).

[0045] The display device 100 may be mounted on the vehicle's dashboard and operate as an input for at least some of the various functions used to operate the vehicle. The display device 100 may provide various types of vehicle-related information, such as vehicle driving information (e.g., the vehicle's current speed, remaining fuel, and distance traveled), information about vehicle components (e.g., the extent of tire damage), etc.

[0046] The display device 100 can be configured to span the driver's seat and passenger seat, which are configured as the front seats of a vehicle. Users of the display device 100 can include the driver of the vehicle and passengers seated in the passenger seat. Both the driver and passengers in the vehicle can use the display device 100.

[0047] Figure 1 The image may only show a portion of the display device 100. Figure 1 The display device 100 shown can be represented as a display panel among the various components included in the display device 100. Specifically, for example, Figure 1 The display device 100 shown may be at least a portion of the display area and at least a portion of the non-display area of ​​a display panel. The components of the display device 100 do not include... Figure 1 The components shown can be installed in a vehicle (or at least a portion of a vehicle).

[0048] Figure 2 This is a functional block diagram of a display device according to an embodiment of the present disclosure.

[0049] Electroluminescent display devices can be used as display devices according to embodiments of this disclosure. Organic light-emitting diode (OLED) display devices, quantum dot OLED display devices, or inorganic light-emitting diode (LED) display devices can be used as electroluminescent display devices.

[0050] 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.

[0051] 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 equipped with pixel circuitry.

[0052] The data drive circuit DD, the gate drive circuit GD, and the timing controller TD can provide signals for operating the pixel PX via signal lines. For example, the signal lines used to provide signals for operating the pixel PX may include multiple data lines DL and multiple gate lines GL.

[0053] Multiple data lines DL may include multiple lines arranged in the column direction and connected to pixels PX arranged in the column direction. Multiple gate lines GL may include multiple lines arranged in the row direction and connected to pixels PX arranged in the row direction.

[0054] In some cases, the display device 100 may also include a power supply unit. In this case, signals for operating the pixels PX can be provided via power lines that connect the power supply unit and the display panel PN. According to an embodiment, 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 operate based on the power supplied from the power supply unit.

[0055] For example, the data driving circuit DD can apply data signals to the pixel PX through multiple data lines DL, the gate driving circuit GD can apply gate signals to the pixel PX through multiple gate lines GL, and the power supply unit can supply power voltage to the pixel PX through the power voltage supply line.

[0056] The timing controller TD can control the data drive circuit DD and the gate drive circuit GD. For example, the timing controller TD can realign externally input digital video data to fit the resolution of the display panel PN and supply the video data to the data drive circuit DD.

[0057] 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 analog data voltage to multiple data lines DL.

[0058] The gate drive circuit (GD) can generate scan signals and light emission signals in response to a gate control signal. For example, the gate drive circuit (GD) may include a scan driver and a light emission signal driver. The scan driver can generate scan signals in a row-sequential manner for operating at least one scan line connected to each pixel row and supply the scan signals to the scan lines. The light emission signal driver can generate light emission signals in a row-sequential manner for operating at least one light emission signal line connected to each pixel row and supply the light emission signals to the light emission signal lines.

[0059] According to an embodiment, the gate driving circuit GD can be disposed on the display panel PN in an in-panel gate driver (GIP) manner. For example, the gate driving circuit GD can be divided into multiple gate driving circuits, and disposed on at least two side surfaces of the display panel PN respectively.

[0060] The display panel PN may include a display area and a non-display area configured to surround the display area.

[0061] The display area of ​​the display panel PN may include multiple pixels PX arranged in the row and column directions. For example, multiple pixels PX may be arranged in the area where multiple data lines DL and multiple gate lines GL intersect.

[0062] A pixel PX may include multiple subpixels that emit light beams of different colors. For example, a pixel PX can achieve blue, red, and green by using three subpixels. However, this disclosure is not limited thereto. In some cases, a pixel PX may also include subpixels for further achieving a specific color, such as white.

[0063] In a pixel PX, the area used to achieve blue can be called a blue subpixel, the area used to achieve red can be called a red subpixel, and the area used to achieve green can be called a green subpixel.

[0064] Multiple pixels (PX) can each include a first light-emitting element and a second light-emitting element that emit light of the same color.

[0065] Multiple pixels PX may each include a first optical component and a second optical component, the first optical component being configured to refract light emitted from a first light-emitting element in a specific direction, and the second optical component being configured to refract light emitted from a second light-emitting element in a specific direction. For example, the first and second optical components may each be implemented as lenses. However, embodiments of this disclosure are not limited thereto.

[0066] For example, a first optical component may be disposed in an optical region configured to define a first viewing angle by providing light within a first range, and a second optical component may be disposed in an optical region configured to define a second viewing angle by providing light within a second range. The first range may correspond to a range larger than the second range. Thus, the first and second optical components can limit the viewing angle of each of a plurality of pixels PX.

[0067] The following will refer to Figures 5 to 7 The first optical component and the second optical component are described in detail.

[0068] The non-display area can be set along the periphery of the display area. Various components for operating the pixel circuitry located in the pixel PX can be set in the non-display area. For example, at least a portion of the gate drive circuit GD can be set in the non-display area. The non-display area can be referred to as the border area.

[0069] When the display panel PN is used as a reference Figure 1 In the described vehicle, the field of view of at least some areas of the display panel PN needs to be limited in response to user needs. For example, images displayed in areas of the display panel PN that provide entertainment functions, seat information, etc., to passengers seated in the passenger seat may obstruct the driver of the vehicle. Therefore, it may sometimes be necessary to limit the field of view of the images displayed in the corresponding areas in response to user needs.

[0070] Therefore, each pixel PX included in the display panel PN can operate in either a first mode or a second mode depending on the driving mode. For example, when a pixel PX operates in the first mode, a first light-emitting element included in the pixel PX can emit light in response to a selection signal, and the light emitted from the first light-emitting element is provided within a first range through a first optical component, thereby defining a first viewing angle, such as a wide viewing angle. Conversely, when a pixel PX operates in the second mode, a second light-emitting element included in the pixel PX can emit light in response to a selection signal, and the light emitted from the second light-emitting element can be provided within a second range through a second optical component, thereby defining a second viewing angle, such as a narrow viewing angle. In this case, the first mode can correspond to a mode in which the corresponding pixel PX is controlled in a wide field-of-view mode (shared mode), and the second mode can correspond to a mode in which the corresponding pixel PX operates in a narrow field-of-view mode (private mode).

[0071] Figure 3 It is shown Figure 2 A circuit diagram of an example of pixel circuitry included in a display device.

[0072] at the same time, Figure 3 The pixel circuit PC shown in the figure is represented by a reference. Figure 2 One embodiment of the pixel circuit corresponding to a sub-pixel of each of the plurality of pixels PX included in the described display device 100. The sub-pixel includes a first light-emitting element ED1 and a second light-emitting element ED2 that emit light of the same color.

[0073] Reference Figure 3 At least some of the transistors included in the pixel circuit PC can each be an n-type transistor or a p-type transistor. In the case of p-type transistors, a low-level voltage of each of the drive signals can refer to the voltage that turns the TFT on, and a high-level voltage of each of the drive signals can refer to the voltage that turns the TFT off.

[0074] In this configuration, 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 corresponding to 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 corresponding to the range of 12V to 16V. According to an embodiment, 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 configuration, the first voltage may have a lower value than the second voltage.

[0075] The pixel circuit PC may include a driving transistor DT, multiple switching transistors ST1, ST2, ST3, ST4, ST5 and ST6, a first transistor T1, a second transistor T2, a storage capacitor Cst and multiple light-emitting elements ED1 and ED2.

[0076] The driving transistor DT can control the driving current applied to multiple light-emitting elements ED1 and ED2 based on the source-gate voltage. The driving transistor DT may include a source electrode connected to a high-potential power line providing a high-potential power voltage VDD, a gate electrode connected to a second node N2, and a drain electrode connected to a third node N3.

[0077] The first switching transistor ST1 applies a data voltage Vdata from the data line DL to the first node N1. The first switching transistor ST1 may include a source electrode connected to the data line DL, a drain electrode connected to the first node N1, and a gate electrode 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 the first scan signal SCAN1 being at a low level (i.e., on level).

[0078] The second switching transistor ST2 can connect the gate and drain diodes of the driving transistor DT. The second switching transistor ST2 may include a drain electrode connected to the second node N2, a source electrode connected to the third node N3, and a gate electrode 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 connect the gate and drain diodes of the driving transistor DT in response to the second scan signal SCAN2 being at a low level (on level).

[0079] The third transistor ST3 can apply a reference voltage Vref to the first node N1. The third switching transistor ST3 may include a source electrode connected to a reference voltage line configured to provide the reference voltage Vref, a drain electrode connected to the first node N1, and a gate electrode connected to a light-emitting signal line to which a light-emitting signal EM is applied. The third switching transistor ST3 can be turned on or off by the light-emitting signal EM. Therefore, the third switching transistor ST3 can transmit the reference voltage Vref to the first node N1 in response to the light-emitting signal EM being at a low level (on level).

[0080] The fourth switching transistor ST4 can apply a reference voltage Vref to the anode electrode of the first light-emitting element ED1. The fourth switching transistor ST4 may include a source electrode connected to a reference voltage line configured to provide the reference voltage Vref, a drain electrode connected to the anode electrode of the first light-emitting element ED1, and a gate electrode connected to a 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 electrode of the first light-emitting element ED1 in response to the second scan signal SCAN2 being at a low level (i.e., on level).

[0081] The fifth switching transistor ST5 can apply a reference voltage Vref to the anode electrode of the second light-emitting element ED2. The fifth switching transistor ST5 may include a source electrode connected to a reference voltage line configured to provide the reference voltage Vref, a drain electrode connected to the anode electrode of the second light-emitting element ED2, and a gate electrode connected to a 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 electrode of the second light-emitting element ED2 in response to the second scan signal SCAN2 being at a low level (i.e., an on level).

[0082] 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 and ED2. The sixth switching transistor ST6 may include a source electrode connected to the third node N3, a drain electrode connected to the fourth node N4, and a gate electrode connected to a light-emitting signal line to which a light-emitting signal EM is applied. The sixth switching transistor ST6 can be turned on or off by the light-emitting signal EM. Therefore, 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 and ED2 by electrically connecting the third node N3 and the fourth node N4 in response to the light-emitting signal EM being at a low level (on level).

[0083] 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 electrode 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 predetermined voltage and maintain the predetermined voltage of the gate electrode of the driving transistor DT when any one of the plurality of light-emitting elements ED1 and ED2 emits light.

[0084] 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 transistor T2 can generate a current path for the second driving current flowing through the second light-emitting element ED2.

[0085] The first transistor T1 can be connected between the fourth node N4 and the first light-emitting element ED1, and the gate electrode of the first transistor T1 can be connected to a first selection signal line configured to provide a first selection signal Ss. When the pixel PX, to which the first pixel circuit PC1 is applied, operates in the first mode, i.e., the wide field-of-view mode, the first selection signal Ss can be supplied to the gate electrode of the first transistor T1, causing the first transistor T1 to turn on. Therefore, a current path is formed for the first driving current flowing through the first light-emitting element ED1, allowing the first light-emitting element ED1 to emit light. Simultaneously, the first transistor T1 can be referred to as a first light-emitting control transistor configured to control the light emission from the first light-emitting element ED1.

[0086] The second transistor T2 can be connected between the fourth node N4 and the second light-emitting element ED2, and the gate electrode of the second transistor T2 can be connected to a second selection signal line configured to provide a second selection signal Ps. When the pixel PX with the pixel circuit PC applied operates in the second mode, i.e., the narrow field-of-view mode, the second selection signal Ps can be supplied to the gate electrode of the second transistor T2, causing the second transistor T2 to turn on. Therefore, a current path is formed for the second driving current flowing through the second light-emitting element ED2, allowing the second light-emitting element ED2 to emit light. Simultaneously, the second transistor T2 can be referred to as a second light-emitting control transistor configured to control the light emission from the second light-emitting element ED2.

[0087] A first light-emitting element ED1 can be connected between a first transistor T1, which is turned on or off by a first selection signal Ss, and a low-potential power line configured to provide a low-potential power voltage VSS. A second light-emitting element ED2 can be connected between a second transistor T2, which is turned on or off by a second selection signal Ps, and a low-potential power line configured to provide a low-potential power voltage VSS.

[0088] In this configuration, either the first light-emitting element ED1 or the second light-emitting element ED2 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 switched on according to the driving mode. For example, the first light-emitting element ED1 can be connected to the driving transistor DT via the first transistor T1 that is switched on in the first mode, and in the first mode, i.e., the wide field-of-view mode, light is provided with a wide viewing angle as the first viewing angle via a first driving current. Similarly, the second light-emitting element ED2 can be connected to the driving transistor DT via the second transistor T2 that is switched on in the second mode, and in the second mode, i.e., the narrow field-of-view mode, light is provided with a narrow viewing angle as the second viewing angle via a second driving current. In this configuration, the driving mode can be determined based on conditions specified by user input or pre-specified.

[0089] Only the first light-emitting element ED1 can emit light in the first mode, and only the second light-emitting element ED2 can emit light in the second mode. In this case, in the first mode, the second selection signal Ps for controlling the emission from the second light-emitting element ED2 can be output only at a high level, i.e., a turn-off level, so that only the first light-emitting element ED1 emits light. Furthermore, in the second mode, the first selection signal Ss for controlling the emission from the first light-emitting element ED1 can be output only at a high level, i.e., a turn-off level, so that only the second light-emitting element ED2 emits light.

[0090] Figure 4 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to an embodiment of the present disclosure. Figure 5 It shows along Figure 4 A cross-sectional view of an example taken from line V-V'. Figure 6 It shows along Figure 4 A cross-sectional view of an example taken from line VI-VI'. Figure 7 It shows along Figure 4 A cross-sectional view of an example taken from line VII-VII'.

[0091] at the same time, Figure 4 The plane of pixel PX is shown when pixel PX comprises three sub-pixels (e.g., first sub-pixel RSP, second sub-pixel GSP, and third sub-pixel BSP). Additionally, Figure 5 It shows along Figure 4 The first optical component 161, which is cut off by line V-V', is disposed in the view of the pixels in the embodiment of the display device 100, and Figure 6 It shows along Figure 4 The second optical component 162, which is cut off by line VI-VI', is provided in the view of the pixels in the embodiment of the display device 100. Additionally, Figure 7 It shows along Figure 4The second optical component 162 is provided in the view of the pixels in the embodiment of the display device 100, as intercepted by line VII-VII'.

[0092] At the same time, for ease of description, Figures 5 to 7 Only shown Figure 4 The regions shown are those corresponding to the first optical region GWE and the second optical region GNE of the second sub-pixel GSP, among the three sub-pixels RSP, GSP, and BSP. However, the same construction can also be applied to other sub-pixels RSP and BSP.

[0093] For ease of description, in the following text, the first direction X is shown as the horizontal direction in the plan view, and the second direction Y is shown as the vertical direction in the plan view. Furthermore, the normal direction of the plane 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.

[0094] Reference Figure 4 A pixel PX may include multiple sub-pixels RSP, GSP, and BSP that display different colors. For example, a pixel PX may include a first sub-pixel RSP configured to display red, a second sub-pixel GSP configured to display green, and a blue sub-pixel BSP configured to display blue. According to an implementation, the first sub-pixel RSP may be referred to as the red sub-pixel, the second sub-pixel GSP may be referred to as the green sub-pixel, and the third sub-pixel BSP may be referred to as 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.

[0095] Multiple sub-pixels RSP, GSP and BSP may each include a first optical region RWE, GWE and BWE configured to provide different viewing angles and a second optical region RNE, GNE and BNE.

[0096] The first optical regions RWE, GWE, and BWE of sub-pixels RSP, GSP, and BSP can operate independently of the second optical regions RNE, GNE, and BNE of the corresponding pixel PX. For example, sub-pixels RSP, GSP, and BSP can each include a first light-emitting element ED1 disposed in the first optical regions RWE, GWE, and BWE of the corresponding sub-pixels RSP, GSP, and BSP, and a second light-emitting element ED2 disposed in the second optical regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP.

[0097] In a pixel PX, the first light-emitting element ED1 and the second light-emitting element ED2 can be disposed in each of the first optical regions RWE, GWE and BWE and the second optical regions RNE, GNE and BNE of the plurality of sub-pixels RSP, GSP and BSP.

[0098] For example, a pixel PX may include a first light-emitting element ED1 disposed in a first optical region RWE of a first sub-pixel RSP, a second light-emitting element ED2 disposed in a second optical region RNE of the first sub-pixel RSP, a first light-emitting element ED1 disposed in a first optical region GWE of a second sub-pixel GSP, a second light-emitting element ED2 disposed in a second optical region GNE of the second sub-pixel GSP, a first light-emitting element ED1 disposed in a first optical region BWE of a third sub-pixel BSP, and a second light-emitting element ED2 disposed in a second optical region BNE of the third sub-pixel BSP.

[0099] Additionally, the first optical regions RWE, GWE, and BWE of the multiple sub-pixels RSP, GSP, and BSP may include multiple first light-emitting regions RE1, GE1, and BE1. Furthermore, the second optical regions RNE, GNE, and BNE of the multiple sub-pixels RSP, GSP, and BSP may include multiple second light-emitting regions RE2, GE2, and BE2.

[0100] For example, the first optical region RWE of the first sub-pixel RSP may include two or more first light-emitting regions RE1. Additionally, the second optical region RNE may include two or more second light-emitting regions RE2. Furthermore, two or more first light-emitting regions GE1 may be provided in the first optical region GWE of the second sub-pixel GSP, and two or more second light-emitting regions GE2 may be provided in the second optical region GNE. Next, two or more first light-emitting regions BE1 may be provided in the first optical region BWE of the third sub-pixel BSP, and two or more second light-emitting regions BE2 may be provided in the second optical region BNE.

[0101] Reference Figure 4At least one first optical component 161 may be disposed in each of the first optical regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP, and is configured to overlap with each of the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1. At least one second optical component 162 may be disposed in each of the second optical regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP, and is configured to overlap with each of the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2. Therefore, when the first light-emitting regions RE1, GE1, and BE1 and the second light-emitting regions RE2, GE2, and BE2 disposed in the sub-pixels RSP, GSP, and BSP are multiple first light-emitting regions RE1, GE1, and BE1 and multiple second light-emitting regions RE2, GE2, and BE2, multiple first optical components 161 and multiple second optical components 162 may also be disposed accordingly.

[0102] In this configuration, when multiple first optical elements 161 are disposed in sub-pixels RSP, GSP, and BSP, the multiple first optical elements 161 disposed in sub-pixels RSP, GSP, and BSP can be spaced apart from each other in the second direction Y in a planar view. For example, when two first optical elements 161 are disposed in the first optical region RWE of the first sub-pixel RSP, the multiple first optical elements 161 can be arranged to be spaced apart from each other on a straight line extending along the second direction Y. In this case, the multiple first optical elements 161 in sub-pixels RSP, GSP, and BSP can overlap each other in the second direction Y. However, this disclosure is not limited thereto.

[0103] Furthermore, the first optical component 161 disposed in adjacent sub-pixels RSP, GSP, and BSP can be disposed on a straight line extending along the first direction X in the planar view. For example, the first optical component 161 of the second sub-pixel GSP can be disposed in the same row as the first optical component 161 disposed in the first sub-pixel RSP. Similarly, the first optical component 161 of the third sub-pixel BSP can be disposed in the same row as the first optical component 161 of the second sub-pixel GSP.

[0104] When multiple second optical elements 162 are disposed in sub-pixels RSP, GSP, and BSP, the multiple second optical elements 162 disposed in sub-pixels RSP, GSP, and BSP can be spaced apart from each other in the first direction X in a planar view. For example, when two second optical elements 162 are disposed in the second optical region RNE of the first sub-pixel RSP, the multiple second optical elements 162 can be disposed spaced apart from each other in a straight line extending along the first direction X. In this case, the multiple second optical elements 162 in sub-pixels RSP, GSP, and BSP can overlap each other in the first direction X. However, the present disclosure is not limited thereto.

[0105] The second optical members 162 disposed in adjacent sub-pixels RSP, GSP, and BSP can be arranged on a straight line extending along the first direction X in the planar view. Furthermore, at least some of the second optical members 162 can overlap with the first optical member 161 in the second direction Y. However, this disclosure is not limited thereto.

[0106] Refer to together Figures 4 to 7 The display device 100 according to the embodiments of the present disclosure may include a substrate 110, a buffer film 111, a gate insulating film 112, an interlayer insulating film 113, a lower protective film 114, an outer coating 115, a dam 116, a first transistor T1, a second transistor T2, a first light-emitting element ED1, a second light-emitting element ED2, an encapsulation component 180, a touch insulating layer 117, a black matrix 190, a barrier layer 195, a first optical component 161, a second optical component 162, and an optical component protective film 170.

[0107] The substrate 110 may include an insulating material. The substrate 110 may include a transparent material. For example, the substrate 110 may include glass or plastic.

[0108] A buffer film 111 may be disposed on a substrate 110. The buffer film 111 may include an insulating material. For example, the buffer film 111 may include inorganic insulating materials such as silicon oxide (SiOx) and silicon nitride (SiNx). The buffer film 111 may have a multilayer structure. For example, the buffer film 111 may have a stacked structure comprising a film made of silicon nitride (SiNx) and a film made of silicon oxide (SiOx).

[0109] A buffer film 111 may be located between the substrate 110 and the driving portion of each of the sub-pixels RSP, GSP, and BSP. The buffer film 111 can suppress contamination caused by the substrate 110 during the formation of the driving portion. For example, the top surface of the substrate 110 facing the driving portion of each of the sub-pixels RSP, GSP, and BSP may be covered by the buffer film 111. The driving portion of each of the sub-pixels RSP, GSP, and BSP may be located on the buffer film 111.

[0110] A gate insulating film 112 may be disposed on a buffer film 111. The gate insulating film 112 may include an insulating material. For example, the gate insulating film 112 may include inorganic insulating materials such as silicon oxide (SiO) and silicon nitride (SiN). The gate insulating film 112 may include a material having a high dielectric constant. For example, the gate insulating film 112 may include a high-k material such as hafnium oxide (HfO). The gate insulating film 112 may have a multilayer structure.

[0111] An interlayer insulating film 113 may be disposed on the gate insulating film 112. The interlayer insulating film 113 may include an insulating material. For example, the interlayer insulating film 113 may include inorganic insulating materials such as silicon oxide (SiO) and silicon nitride (SiN). The interlayer insulating film 113 may extend between the gate electrodes 122 and 132 and the source electrodes 123 and 133 of transistors T1 and T2, and between the gate electrodes 122 and 132 and the drain electrodes 124 and 134 of transistors T1 and T2. For example, the source electrodes 123 and 133 and the drain electrodes 124 and 134 of the first transistor T1 and the second transistor T2 may be insulated from the gate electrodes 122 and 132 by the interlayer insulating film 113. The interlayer insulating film 113 may cover the gate electrodes 122 and 132 of the first transistor T1 and the second transistor T2. The source electrodes 123 and 133 and the drain electrodes 124 and 134 of each of the sub-pixels RSP, GSP and BSP may be located on the interlayer insulating film 113. The gate insulating film 112 and the interlayer insulating film 113 may expose the source and drain regions of the semiconductor layers 121 and 131 located in each of the sub-pixels RSP, GSP and BSP.

[0112] The lower protective film 114 may be disposed on the interlayer insulating film 113. The lower protective film 114 may include an insulating material. For example, the lower protective film 114 may include inorganic insulating materials such as silicon oxide (SiO) and silicon nitride (SiN).

[0113] The lower protective film 114 can suppress damage to the driving unit caused by external moisture and impact. The lower protective film 114 can extend along the surface of the first transistor T1 and the second transistor T2. The lower protective film 114 can contact the interlayer insulating film 113 located outside the driving unit in each of the sub-pixels RSP, GSP and BSP.

[0114] An outer coating 115 may be disposed on the lower protective film 114. The outer coating 115 may include an insulating material. The outer coating 115 may include a material different from the material of the lower protective film 114. For example, the outer coating 115 may include an organic insulating material.

[0115] The outer coating 115 can eliminate the level difference caused by the driving portion of each of the sub-pixels RSP, GSP, and BSP. For example, the top surface of the outer coating 115 opposite to the substrate 110 can be a flat surface.

[0116] 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 electrode of the driving transistor DT and the first lower electrode 141 of the first light-emitting element ED1. The second transistor T2 can be electrically connected between the drain electrode of the driving transistor DT and the second lower electrode 151 of the second light-emitting element ED2.

[0117] The first transistor T1 may include a first semiconductor layer 121, a first gate electrode 122, a first source electrode 123, and a first drain electrode 124. The first transistor T1 may have the same structure as the switching transistor and the driving transistor.

[0118] For example, the first semiconductor layer 121 may be located between the buffer film 111 and the gate insulating film 112, and the first gate electrode 122 may be located between the gate insulating film 112 and the interlayer insulating film 113. The first source electrode 123 and the first drain electrode 124 may be located between the interlayer insulating film 113 and the lower protective film 114. The first gate electrode 122 may overlap with the channel region of the first semiconductor layer 121. The first source electrode 123 may be electrically connected to the source region of the first semiconductor layer 121. The first drain electrode 124 may be electrically connected to the drain region of the first semiconductor layer 121.

[0119] The second transistor T2 may include a second semiconductor layer 131, a second gate electrode 132, a second source electrode 133, and a second drain electrode 134. For example, the second semiconductor layer 131 may be located on the same layer as the first semiconductor layer 121, the second gate electrode 132 may be located on the same layer as the first gate electrode 122, and the second source electrode 133 and the second drain electrode 134 may be located on the same layer as the first source electrode 123 and the first drain electrode 124.

[0120] The first light-emitting element ED1 and the second light-emitting element ED2 of each of the sub-pixels RSP, GSP, and BSP can be disposed on the outer coating 115 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the first lower electrode 141 of the first light-emitting element ED1 can be electrically connected to the first drain electrode 124 or the first source electrode 123 of the first transistor T1 through a contact hole formed through the lower protective film 114 and the outer coating 115, and the second lower electrode 151 of the second light-emitting element ED2 can be electrically connected to the second drain electrode 134 or the second source electrode 133 of the second transistor T2 through a contact hole formed through the lower protective film 114 and the outer coating 115.

[0121] The first light-emitting element ED1 can emit light of 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.

[0122] The first lower electrode 141 may include a conductive material. The first lower electrode 141 may include a material with high reflectivity. For example, the first lower electrode 141 may include 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 such as ITO and IZO. The first lower electrode 141 can be electrically connected to the first drain electrode 124 of the first transistor T1 through a contact hole formed through the lower protective film 114 and the outer coating 115.

[0123] 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 an emissive material layer (EML) containing a light-emitting material. The light-emitting material may include organic materials, inorganic materials, or a mixture of materials.

[0124] The first light-emitting layer 142 may have a multilayer structure. For example, the first light-emitting layer 142 may also 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).

[0125] The first upper electrode 143 may include a conductive material. The first upper electrode 143 may include a material different from that of 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 configured as a transparent electrode made of a transparent conductive material such as 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.

[0126] 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.

[0127] The second lower electrode 151 may correspond to the first lower electrode 141, the second light-emitting layer 152 may correspond to the first light-emitting layer 142, and the second upper electrode 153 may correspond to the first upper electrode 143. For example, the second lower electrode 151 may be formed for the second light-emitting element ED2, while having the same structure as the first lower electrode 141. This can also be applied to the second light-emitting layer 152 and the second upper electrode 153. For example, the first light-emitting element ED1 and the second light-emitting element ED2 may be formed to have the same structure. However, this disclosure is not limited thereto. In some cases, the first light-emitting element ED1 and the second light-emitting element ED2 may be formed to be different from each other in at least some of their configurations.

[0128] The second light-emitting layer 152 can be spaced apart from the first light-emitting layer 142. Therefore, in the display device according to the embodiments of the present disclosure, light emission caused by leakage current can be suppressed.

[0129] According to embodiments of the present disclosure, in a display device, only one of the first light-emitting layer 142 and the second light-emitting layer 152 can generate light according to user selection or pre-specified conditions.

[0130] The second lower electrode 151 of each of the sub-pixels RSP, GSP, and BSP may be spaced apart from the first lower electrode 141 of the corresponding sub-pixels RSP, GSP, and BSP. For example, a dam 116 may be disposed between the first lower electrode 141 and the second lower electrode 151 of each of the sub-pixels RSP, GSP, and BSP. The dam 116 may include an insulating material. For example, the dam 116 may include an organic insulating material. The dam 116 may include a material different from the material of the outer coating 115.

[0131] The second lower electrode 151 of each of the sub-pixels RSP, GSP, and BSP can be insulated from the first lower electrode 141 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 second lower electrode 151 located in each of the sub-pixels RSP, GSP, and BSP.

[0132] The embankment 116 can separate the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 from the second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2. For example, the first light-emitting regions RE1, GE1, and BE1 of the first light-emitting element ED1 can each be defined as the edge region of the first lower electrode 141 covered by the embankment 116. The second light-emitting regions RE2, GE2, and BE2 of the second light-emitting element ED2 can each be defined as the edge region of the second lower electrode 151 covered by the embankment 116. Additionally, the embankment 116 can be stacked on a portion of the first lower electrode 141 or the second lower electrode 151. Specifically, the top surface of the first lower electrode 141 or the second lower electrode 151 can be divided into at least two regions by the embankment 116. (Refer to...) Figure 6 The top surface of the second lower electrode 151 can be divided into two regions by the embankment 116, and each of these two regions can correspond to the second light-emitting region GE2. Similarly, the top surface of the first lower electrode 141 can also be divided into two regions by the embankment 116, and each of these two regions can correspond to the first light-emitting region GE1.

[0133] The first light-emitting layer 142 and the first upper electrode 143 of the first light-emitting element ED1 in each of the sub-pixels RSP, GSP, and BSP can be stacked on the portion of the first light-emitting element ED1 exposed by the dam 116 corresponding to the first lower electrode 141. Specifically, the first light-emitting layer 142 and the first upper electrode 143 can be stacked on the dam 116 and the portion of the first lower electrode 141 exposed by the dam 116. The second light-emitting layer 152 and the second upper electrode 153 of the second light-emitting element ED2 in each of the sub-pixels RSP, GSP, and BSP can be stacked on the portion of the second lower electrode ED2 exposed by the dam 116 corresponding to the second lower electrode 151. Specifically, the second light-emitting layer 152 and the second upper electrode 153 can be stacked on the dam 116 and the portion of the second lower electrode 151 exposed by the dam 116.

[0134] The second upper electrode 153 of each of the sub-pixels RSP, GSP, and BSP can be electrically connected to the first upper electrode 143 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the voltage applied to 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 equal to the voltage applied to the first upper electrode 143 of the first light-emitting element ED1 located in each of the corresponding sub-pixels RSP, GSP, and BSP. The second upper electrode 153 of each of the sub-pixels RSP, GSP, and BSP can include the same material as the first upper electrode 143 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the second upper electrode 153 of each of the sub-pixels RSP, GSP, and BSP can be formed simultaneously with the first upper electrode 143 of the corresponding sub-pixels RSP, GSP, and BSP. 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 first upper electrode 143 of the corresponding sub-pixels RSP, GSP, and BSP. The brightness of the first optical regions RWE, GWE, and BWE located in the sub-pixels RSP, GSP, and BSP, as well as the brightness of the second optical regions RNE, GNE, and BNE, can be controlled by the driving current generated in the corresponding sub-pixels RSP, GSP, and BSP.

[0135] The encapsulation component 180 may be located on the first light-emitting element ED1 and the second light-emitting element ED2 of each of the sub-pixels RSP, GSP, and BSP. The encapsulation component 180 may suppress damage to the light-emitting elements ED1 and ED2 caused by 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 in sequence. However, this disclosure is not limited thereto.

[0136] The first encapsulation layer 181, the second encapsulation layer 182, and the third encapsulation layer 183 may include insulating materials. The second encapsulation layer 182 may include materials different from those of the first encapsulation layer 181 and the third encapsulation layer 183. For example, the first encapsulation layer 181 and the third encapsulation layer 183 are inorganic encapsulation layers including inorganic insulating materials, while the second encapsulation layer 182 may include an organic encapsulation layer containing organic insulating materials. Therefore, damage to the light-emitting elements ED1 and ED2 of the display device 100 caused by external moisture and impact can be more effectively suppressed.

[0137] The black matrix 190 can be disposed on the encapsulation member 180. The black matrix 190 can be disposed between multiple sub-pixel RSPs, GSPs, and BSPs to reduce color mixing of the multiple sub-pixel RSPs, GSPs, and BSPs. Therefore, the black matrix 190 can be disposed to overlap with the embankment 116.

[0138] Touch insulating layer 117 may be disposed on black matrix 190. Touch insulating layer 117 may be disposed between encapsulation member 180, black matrix 190 and barrier layer 195, and is configured to insulate barrier layer 195.

[0139] The touch insulating layer 117 may include an insulating material. For example, the touch insulating layer 117 may include an organic insulating material or an inorganic insulating material. However, this disclosure is not limited thereto.

[0140] Multiple barrier layers 195 may be located on the touch insulating layer 117. Multiple barrier layers 195 may be disposed above the first light-emitting element ED1 and the second light-emitting element ED2 in the display area.

[0141] Multiple barrier layers 195 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 barrier layers 195 can be configured to overlap with the edges of the first light-emitting regions RE1, GE1, and BE1 and the edges of the second light-emitting regions RE2, GE2, and BE2, and block the light beams propagating laterally from the light beams emitted from the first light-emitting regions RE1, GE2, and BE1 and the second light-emitting regions RE2, GE2, and BE2. That is, the multiple barrier layers 195, together with the first optical component 161 and the second optical component 162, can block the light beams propagating laterally from the light beams emitted from the first optical regions RNE, GNE, and BNE located in the sub-pixels RSP, GSP, and BSP.

[0142] The multiple barrier layers 195 may be made of the same material as the multiple touch electrodes. For example, the multiple barrier layers 195 may include metallic materials such as titanium (Ti), aluminum (Al), silver (Ag), copper (Cu), or magnesium-silver alloy (Mg:Ag). However, this disclosure is not limited thereto.

[0143] Additionally, a touch buffer layer may be further provided between the encapsulation member 180 and the barrier layer 195. However, this disclosure is not limited thereto. Although not shown in the figures, multiple touch electrodes may be provided on the touch insulating layer. Multiple touch electrodes may be provided on the touch insulating layer 117 and spaced apart from each other. The multiple touch electrodes may be configured to sense touch input applied externally by a user's finger, stylus, etc. Furthermore, in addition to the barrier layer 195, touch bridge electrodes may also be provided on the encapsulation member 180. However, this disclosure is not limited thereto.

[0144] The first optical component 161 and the second optical component 162 can be disposed on the touch insulating layer 117.

[0145] The first optical component 161 and the second optical component 162 may be disposed on the touch insulating layer 117 and on the same layer as the plurality of barrier layers 195. For example, the first optical component 161 and the second optical component 162 may be configured to cover the edges of the plurality of barrier layers 195.

[0146] The first optical component 161 may 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 is refracted by the first optical component 161 disposed in the first optical regions RWE, GWE and BWE of the corresponding sub-pixels RSP, GSP and BSP, and the light is released.

[0147] The first optical element 161 has a shape that does not restrict the propagation of light in at least one lateral direction. In this disclosure, the planar shape of the first optical element 161 located in each of the sub-pixels RSP, GSP, and BSP is a shape extending in a first direction X. For example, the planar shape of the first optical element 161 located in each of the sub-pixels RSP, GSP, and BSP is a strip shape extending in the first direction X. Therefore, the planar shape of the first optical element 161 may include a long side extending in the first direction X and short sides extending from two opposite ends of the long side in a second direction Y. For example, the planar shape of the first optical element 161 may be a rectangular shape with its long side located in the first direction X. In this case, the propagation direction of light emitted from the first optical regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP is not limited to the first direction X. For example, content (or images) provided through the first optical regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP can be shared with people around the user adjacent to them in the first direction X. Therefore, the content provided by the light emitted through the first optical member 161 can be provided in the first direction X at a larger viewing angle than the content provided by the light emitted through the second optical member 162. For example, the content provided by the light emitted through the first optical member 161 can be provided in a wide field-of-view mode (shared mode).

[0148] At least a portion of the top surface of the cross-sectional shape formed by cutting the first optical member 161 in the first direction X can be flat. Additionally, the two opposing surfaces of the first optical member 161 can be formed as curved or straight. For example, the cross-sectional shape based on the long side of the first optical member 161 can have a flat upper surface and straight lines extending perpendicularly from the two opposing ends of the flat surface toward the touch insulating layer 117. Alternatively, the cross-sectional shape based on the long side of the first optical member 161 can have a flat upper surface and curves extending from the two opposing ends of the flat surface toward the touch insulating layer 117.

[0149] The second optical component 162 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 is refracted by the second optical component 162 disposed in the second optical regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP, and the light is released. The second optical component 162 can restrict the propagation of light passing through the second optical component 162 in the first direction X. Furthermore, the second optical component 162 may not restrict the propagation of light passing through the second optical component 162 in the second direction Y. In this disclosure, the planar shape of the second optical component 162 located in each of the sub-pixels RSP, GSP, and BSP is a shape extending in the second direction Y. For example, the planar shape of the second optical component 162 located in each of the sub-pixels RSP, GSP, and BSP can be a strip shape or an elliptical shape extending in the second direction Y. Therefore, the maximum width of the planar shape of the second optical component 162 in the first direction X can be less than the maximum thickness in the second direction Y. Therefore, the planar shape of the second optical component 162 may include a major axis extending in the second direction Y and a minor axis extending in the first direction X.

[0150] In this configuration, the propagation of light emitted from the second optical regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP in the first direction X can be restricted. For example, the content (or image) provided by the second optical regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP can be kept separate from those around the user. Therefore, the content provided by the light emitted through the second optical component 162 can be provided in the left / right direction with a smaller viewing angle than the content provided by the light emitted through the first optical component 161. For example, the content provided by the light emitted through the second optical component 162 can be provided in a narrow field-of-view mode (private mode).

[0151] The cross-sectional shape formed by cutting the second optical member 162 in the first direction X can be simply formed as a curved shape. Specifically, the cross-sectional shape of the second optical member 162 in the first direction X can be a shape in which its central portion convexes upward. For example, the cross-sectional shape of the second optical member 162 in the first direction X can be a semi-circular shape. However, this disclosure is not limited thereto. In the cross-sectional shape of the second optical member 162 in the first direction X, the maximum width and the maximum thickness can be equal to or different from each other.

[0152] Meanwhile, the cross-sectional shape formed by cutting the second optical member 162 in the second direction Y can simply be formed as a curved shape and convex upwards. For example, the cross-sectional shape of the second optical member 162 in the second direction Y can be a semi-elliptical shape with its central portion convex upwards. In this case, the thickness of the central portion of the second optical member 162 can be less than the maximum width. The maximum height of the second optical member 162 can be maximized at the center of the width of the second optical member 162. However, this disclosure is not limited thereto.

[0153] In this disclosure, the first optical component 161 and the second optical component 162 may have shapes extending in different directions. Specifically, the first optical component 161 has a shape extending in a first direction X, and the second optical component 162 has a shape extending in a second direction Y. In this case, the first direction X may refer to a horizontal direction in a plan view, i.e., a left / right direction. Additionally, the second direction Y may refer to a vertical direction in a plan view, i.e., an upward / downward direction. For example, the first direction X and the second direction Y may be orthogonal to each other.

[0154] The first light-emitting regions RE1, GE1, and BE1 of pixel PX can each have a shape corresponding to the first optical component 161 of each of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of each of the first light-emitting regions RE1, GE1, and BE1 of sub-pixels RSP, GSP, and BSP can be a shape extending in the first direction X. Specifically, the first light-emitting regions RE1, GE1, and BE1 can each have a strip shape extending in the first direction X. The first optical component 161 can have a larger size than each of 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 sub-pixels RSP, GSP, and BSP can be improved.

[0155] The second light-emitting regions RE2, GE2, and BE2 of the sub-pixels RSP, GSP, and BSP can each have a shape corresponding to the second optical component 162 of each of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of each of the second light-emitting regions RE2, GE2, and BE2 of the sub-pixels RSP, GSP, and BSP can be a shape extending in the second direction Y. Specifically, the second light-emitting regions RE2, GE2, and BE2 can each have an elliptical shape or a strip shape extending in the second direction Y. The second optical component 162 can have a larger size than each of 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. The number of first light-emitting regions RE1, GE1, and BE1 or the number of second light-emitting regions RE2, GE2, and BE2 can be different for each of the sub-pixels RSP, GSP, and BSP. For example, the number of second light-emitting regions GE2 defined in the second optical region GNE of the second sub-pixel GSP and the number of second light-emitting regions BE2 defined in the second optical region BNE of the third sub-pixel BSP can each be greater than the number of second light-emitting regions RE2 defined in the second optical region RNE of the first sub-pixel RSP. In this case, the efficiency deviation among the second light-emitting elements ED2 located in the second optical regions RNE, GNE, and BNE can be compensated by the number of second light-emitting regions RE2, GE2, and BE2 defined in the second optical regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP.

[0156] An optical component protective film 170 may be located on the first optical component 161 and the second optical component 162 of each of the sub-pixels RSP, GSP, and BSP. The optical component protective film 170 may include an insulating material. For example, the optical component protective film 170 may include an organic insulating material. The refractive index of the optical component protective film 170 may be less than the refractive index of the first optical component 161 and the second optical component 162 located in each of the sub-pixels RSP, GSP, and BSP. Therefore, in the display device 100 according to an embodiment of the present disclosure, light that has passed through the first optical component 161 and the second optical component 162 of each of the sub-pixels RSP, GSP, and BSP will not be reflected toward the substrate 110 due to the difference in refractive index with the optical component protective film 170.

[0157] Meanwhile, in the embodiment according to this disclosure, the display device 100 is provided with a reference. Figure 1When the display device 100 is used to display content on at least a portion of the dashboard of a vehicle and is intended for a user (e.g., a passenger), it may obstruct the driver's ability to operate the vehicle. Therefore, the driver does not need to recognize the relevant content. Consequently, it is necessary to limit the field of view of the image on the display device 100, which is positioned facing the passenger seat, when the vehicle is being driven according to the user's request.

[0158] Therefore, the sub-pixels RSP, GSP, and BSP of the display device 100 according to the embodiments of the present disclosure each include a first optical member 161 and a second optical member 162 having shapes extending in different directions. Furthermore, the first light-emitting element ED1 and the second light-emitting element ED2, which overlap with the first optical member 161 and the second optical member 162 respectively, can operate in different modes according to user requirements.

[0159] Specifically, the first optical component 161 has a shape extending in the first direction X, such that the first light-emitting regions RE1, GE1, and BE1 can each be formed to have a shape extending in the first direction X. That is, in the first mode of operation of the first light-emitting regions RE1, GE2, and BE1, both passengers and the driver in the same vehicle can recognize the image.

[0160] In contrast, the second optical member 162 has a shape extending in the second direction Y. That is, the width of the second optical member 162 in the first direction X is smaller than the width of the second optical member 162 in the second direction Y. Therefore, the second light-emitting regions RE2, GE2, and BE2 each have a small width in the first direction X. Therefore, in the second mode of operation of the second light-emitting element ED2, the diffusion of light emitted from the second light-emitting element ED2 in the first direction X, i.e., the left / right direction, can be limited by the second optical member 162. Therefore, in the second mode, only passengers seated facing the front surface of the display device 100 can recognize the image, while the driver may not be able to recognize the image.

[0161] The second optical component 162 of the display device 100 according to an embodiment of the present disclosure has a shape extending in the upward / downward direction. Therefore, the second light-emitting regions RE2, GE2, and BE2 can also each have a shape extending in the upward / downward direction. Therefore, in the second mode of recognizing images of fellow passengers, the light emitted from the second light-emitting element ED2 can propagate more widely in the second direction Y, i.e., the upward / downward direction. Therefore, the display device 100 according to an embodiment of the present disclosure can ensure a wider viewing angle in the upward / downward direction. Therefore, brightness deviations caused by differences in eye height due to changes in the physical condition of fellow passengers can be reduced. Therefore, regardless of changes in viewing angle caused by differences in eye height, fellow passengers can recognize high-quality images.

[0162] Furthermore, in the display device 100 according to the embodiments of the present disclosure, the second optical member 162 has a shape extending in the second direction Y, such that the second light-emitting regions RE2, GE2, and BE2 can also extend in the second direction Y. Therefore, the second light-emitting regions RE2, GE2, and BE2 can be further expanded in the second direction Y. As described above, since the second light-emitting regions RE2, GE2, and BE2 are expanded, the luminous efficiency of the second light-emitting element ED2 can be improved. Therefore, high-quality images can be achieved with lower power consumption.

[0163] Figure 8 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to another embodiment of the present disclosure. Figure 9 It shows along Figure 8 A cross-sectional view of an example taken from line IX-IX'.

[0164] In addition to the planar arrangement of the second optical component 262, Figure 8 and Figure 9 The display device 200 in the middle is configured with Figures 4 to 7 The display device 100 is essentially the same as that in the previous version. Therefore, repeated descriptions of the same components will be omitted.

[0165] Refer to together Figure 8 and Figure 9 In another embodiment of the display device 200 according to the present disclosure, a plurality of second optical components 262 may be disposed in the second optical regions RNE, GNE, and BNE. For example, the second optical components 262 may be disposed in multiple rows and multiple columns in the second optical regions RNE, GNE, and BNE. In addition, the second optical components 262 may be spaced apart from each other.

[0166] In this configuration, the second optical components 262 adjacent to each other in the first direction X can be arranged in the same row. For example, the second optical components 262 adjacent to each other in the first direction X can be arranged so that their centers are on the same straight line. However, this disclosure is not limited thereto. In another example, the centers of the second optical components 262 adjacent to each other in the first direction X may not be on the same straight line.

[0167] Furthermore, second optical components 262 adjacent to each other in the second direction Y can be arranged in the same column. For example, the centers of second optical components 262 adjacent to each other in the second direction Y can be arranged to be on the same straight line. However, this disclosure is not limited to this. In another example, the centers of second optical components 262 adjacent to each other in the second direction Y may not be on the same straight line.

[0168] Two or more second optical elements 262 may be arranged in a row in each of the second optical regions RNE, GNE, and BNE. Alternatively, two or more second optical elements 262 may be arranged in a column.

[0169] According to another embodiment of the present disclosure, the display device 200 may include a first optical member 161 and a second optical member 162 having shapes extending in different directions in each of the sub-pixels RSP, GSP and BSP, such that the display device 200 can operate in different modes according to the user's requirements.

[0170] Specifically, the first optical component 161 has a shape extending in a first direction X, which allows the driver and passengers in the vehicle to recognize a first mode of the image.

[0171] at the same time, Figure 14 This is a graph illustrating the relative brightness of the display device according to the example and comparative examples of this disclosure in the left / right direction relative to the viewing angle. (See also...) Figure 14 The first optical component 161 has a smaller width in the left / right direction, allowing the second optical component 262 to limit the diffusion of light from the second light-emitting element ED2 in the first direction X. Therefore, the display device 200 can have a small viewing angle in the left / right direction. (Refer to...) Figure 14 The display device according to the comparative example (where the planar shape of the second optical component is circular) and the display device 200 according to another embodiment of the present disclosure (Example 2) both have a small width in the left / right direction, such that both the display device of the comparative example and the display device 200 (Example 2) of the other embodiment of the present disclosure can have a small viewing angle in the left / right direction. Therefore, the display device 200 can operate in a second mode, in which only passengers in the same vehicle recognize the image, while the driver does not recognize the image.

[0172] Furthermore, according to another embodiment of the present disclosure, the second optical component 262 of the display device 200 has a shape that extends in the upward / downward direction. Therefore, in the second mode of the display device 200 for identifying passengers in the same vehicle, the light emitted from the second light-emitting element ED2 can propagate more widely in the upward / downward direction.

[0173] at the same time, Figure 15 This is a graph illustrating the relative brightness of the display device according to the example and comparative examples of this disclosure in the upward / downward direction relative to the viewing angle. (See also...) Figure 15Compared to a comparative example where the planar shape of the second optical component is circular, the second optical component 262 (Example 2) of the display device 200 according to another embodiment of the present disclosure extends further in the upward / downward direction in a planar view, thereby further increasing the viewing angle in the upward / downward direction. Therefore, brightness deviations caused by differences in eye height due to changes in the physical condition of passengers in the same vehicle can be further reduced.

[0174] In another embodiment of the display device 200 according to this disclosure, the second optical component 262 can be arranged in multiple rows and columns. Therefore, the second light-emitting elements ED2, which are arranged corresponding to the second optical component 262, can also be arranged in multiple rows and columns. Thus, by providing a large number of second light-emitting elements ED2 and a large number of second optical components 262 in the second optical regions RNE, GNE, and BNE, the luminous efficiency of the second light-emitting elements ED2 can be further improved. Therefore, high-quality images can be achieved with lower power consumption.

[0175] Figure 10 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to another embodiment of the present disclosure. Figure 11 It shows along Figure 10 A cross-sectional view of an example taken from line XI-XI'.

[0176] In addition to the planar shape and cross-sectional shape of the second optical component 362, Figure 10 and Figure 11 The display device 300 in the middle is configured with Figures 1 to 7 The display device 100 is essentially the same as that in the previous version. Therefore, repeated descriptions of the same components will be omitted.

[0177] Reference Figure 10 In another embodiment of the display device 300 according to the present disclosure, the planar shape of the second optical member 362 may be a strip shape extending in the second direction Y. Therefore, the planar shape of the second optical member 362 may include a long side extending in the second direction Y and short sides extending from two opposite ends of the long side in the first direction X. For example, the planar shape of the second optical member 362 may be a rectangular shape with the long side located in the second direction Y.

[0178] Multiple second optical elements 362 can be disposed in sub-pixels RSP, GSP, and BSP. The multiple second optical elements 362 disposed in sub-pixels RSP, GSP, and BSP can be spaced apart from each other in the first direction X in a planar view. For example, when two second optical elements 362 are disposed in the second optical region RNE of the first sub-pixel RSP, the multiple second optical elements 362 can be arranged to be spaced apart from each other on a straight line extending along the first direction X. In this case, the multiple second optical elements 362 can overlap each other in the first direction X in the sub-pixels RSP, GSP, and BSP. However, this disclosure is not limited thereto.

[0179] Reference Figure 11 At least a portion of the top surface of the cross-sectional shape formed by cutting the second optical member 362 in the second direction Y can be flat. Additionally, the two opposing surfaces of the second optical member 362 can be formed as curved or straight. For example, the cross-sectional shape based on the long side of the second optical member 362 can have a flat upper surface and straight lines extending perpendicularly from the two opposing ends of the flat surface toward the touch insulating layer 117. Alternatively, the cross-sectional shape based on the long side of the second optical member 362 can have a flat upper surface and curves extending from the two opposing ends of the flat surface toward the touch insulating layer 117.

[0180] According to another embodiment of the present disclosure, the display device 300 may include a first optical member 161 and a second optical member 362 having shapes extending in different directions in each of the sub-pixels RSP, GSP and BSP, such that the display device 300 can operate in different modes according to the user's requirements.

[0181] Specifically, the first optical element 161 has a shape extending in a first direction X, enabling operation that allows both the driver and fellow passengers to recognize a first pattern of the image. In contrast, refer to... Figure 14 The first optical element 161 has a smaller width in the left / right direction, which may result in a smaller viewing angle for the second optical element 362 in the left / right direction. (Refer to...) Figure 14 Both the display device of the comparative example (in which the planar shape of the second optical component is circular) and the display device 300 of another embodiment of the present disclosure (Example 3) have a small width in the left / right direction, such that both the display device of the comparative example and the display device 300 of another embodiment of the present disclosure (Example 3) can have a small viewing angle in the left / right direction. Therefore, the display device 300 can operate in a second mode in which only passengers in the same vehicle recognize the image, while the driver does not recognize the image.

[0182] Furthermore, according to another embodiment of the present disclosure, the second optical member 362 of the display device 300 has a shape extending in the upward / downward direction. Therefore, in the second mode of the display device 300 for displaying passenger identification images, the light emitted from the second light-emitting element ED2 can propagate more widely in the upward / downward direction. (See also...) Figure 15 Compared to a comparative example where the second optical element has a circular planar shape, the second optical element 362 (Example 3) of the display device 300 according to another embodiment of the present disclosure is further extended in the upward / downward direction in a planar view, thereby further increasing the viewing angle in the upward / downward direction. Therefore, brightness deviations caused by differences in eye height due to changes in the physical condition of passengers in the same vehicle can be further reduced.

[0183] Furthermore, compared to the display device 200 with an elliptical planar shape (Example 2), the width of the upper and lower distal ends of the display device 300 (Example 3) with a strip-shaped planar shape of the second optical member 362 can be increased. Therefore, in the display device 300 (Example 3) with a strip-shaped planar shape of the second optical member 362, the viewing angle in the upward / downward direction can be further expanded. Thus, brightness deviation caused by differences in eye height among passengers in the same vehicle can be further reduced.

[0184] Furthermore, in another embodiment of the display device 300 according to this disclosure, the second optical member 362 has a shape extending in the second direction Y, such that the second light-emitting regions RE2, GE2, and BE2 can also extend in the second direction Y. Therefore, the luminous efficiency of the second light-emitting element ED2 can be improved, and high-quality images can be achieved with lower power consumption.

[0185] Figure 12 This is an enlarged top plan view showing the arrangement of optical components included in a display device according to yet another embodiment of the present disclosure. Figure 13 It shows along Figure 12 A cross-sectional view of an example taken from line XIII-XIII'.

[0186] In addition to the planar arrangement of the second optical component 462, Figure 12 and Figure 13 The display device 400 in the middle is configured with Figure 10 and Figure 11 The display device 300 is essentially the same. Therefore, repeated descriptions of the same components will be omitted.

[0187] Refer to together Figure 12 and Figure 13In another embodiment of the display device 400 according to the present disclosure, a plurality of second optical components 462 may be disposed in second optical regions RNE, GNE, and BNE. For example, the second optical components 462 may be disposed in multiple rows and multiple columns in the second optical regions RNE, GNE, and BNE. In addition, the second optical components 462 may be spaced apart from each other.

[0188] In this configuration, the second optical elements 462 adjacent to each other in the first direction X can be arranged in the same row. For example, the second optical elements 462 adjacent to each other in the first direction X can be arranged so that their centers are on the same straight line. However, this disclosure is not limited thereto. In another example, the centers of the second optical elements 462 adjacent to each other in the first direction X may not be on the same straight line.

[0189] Furthermore, the second optical components 462 that are adjacent to each other in the second direction Y can be arranged in the same column. For example, the centers of the second optical components 462 that are adjacent to each other in the second direction Y can be arranged to be on the same straight line. However, this disclosure is not limited to this. In another example, the centers of the second optical components 462 that are adjacent to each other in the second direction Y may not be on the same straight line.

[0190] Two or more second optical elements 462 may be arranged in a row in each of the second optical regions RNE, GNE, and BNE. Alternatively, two or more second optical elements 462 may be arranged in a column.

[0191] A display device 400 according to yet another embodiment of the present disclosure may include a first optical member 161 and a second optical member 462 having shapes extending in different directions in each of the sub-pixels RSP, GSP and BSP, such that the display device 400 may operate in different modes according to user requirements.

[0192] Specifically, the first optical component 161 has a shape extending in the first direction X, enabling operation in a first mode where both the driver and passengers can recognize the image. Furthermore, the first optical component 161 has a smaller width in the left / right direction, allowing the second optical component 462 to limit the diffusion of light from the second light-emitting element ED2 in the first direction X. Therefore, the display device 400 can have a narrow viewing angle in the left / right direction. Thus, the display device 400 can operate in a second mode, in which only passengers recognize the image, while the driver does not.

[0193] Furthermore, according to yet another embodiment of the present disclosure, the second optical member 462 of the display device 400 has a shape extending in the upward / downward direction. Therefore, in the second mode of the display device 400 for identifying passenger images, the light emitted from the second light-emitting element ED2 can propagate more widely in the upward / downward direction, further increasing the viewing angle in the upward / downward direction. Thus, brightness deviations caused by differences in eye height due to changes in the physical condition of passengers can be further reduced.

[0194] In a display device 400 according to yet another embodiment of the present disclosure, the second optical component 462 can be arranged in multiple rows and multiple columns. Therefore, the second light-emitting elements ED2, which are arranged corresponding to the second optical component 462, can also be arranged in multiple rows and multiple columns. Thus, by providing a large number of second light-emitting elements ED2 and a large number of second optical components 462 in the second optical regions RNE, GNE, and BNE, the luminous efficiency of the second light-emitting elements ED2 can be further improved. Therefore, high-quality images can be achieved with lower power consumption.

[0195] Exemplary implementations of this disclosure can be described as follows:

[0196] A display device according to an embodiment of the present disclosure includes: a substrate; a first light-emitting element disposed on the substrate; a first optical member configured to refract light emitted from the first light-emitting element, the first optical member having a planar shape extending in a first direction; a second light-emitting element disposed on the substrate and configured to emit light having the same color as light from the first light-emitting element; and a second optical member configured to refract light emitted from the second light-emitting element, the second optical member having a planar shape extending in a second direction different from the first direction.

[0197] The first and second directions can be orthogonal to each other.

[0198] The planar shape of the first optical component may be a strip shape extending in the first direction, and the planar shape of the second optical component may be a strip shape or an elliptical shape extending in the second direction.

[0199] When the planar shape of the second optical component is elliptical, the cross-sectional shape of the second optical component based on its major axis can be semi-elliptical, and the cross-sectional shape of the second optical component based on its minor axis can be semi-circular.

[0200] When the planar shape of the second optical component is a strip shape, at least a portion of the cross-sectional shape of the second optical component based on the long side of the second optical component may include a straight side, and the cross-sectional shape of the second optical component based on the short side of the second optical component may be a semi-circular shape.

[0201] The first optical element can be configured as a plurality of first optical elements, and the plurality of first optical elements can be configured to be in the same column in the plan view and spaced apart from each other.

[0202] The second optical component can be configured as a plurality of second optical components, and the plurality of second optical components can be configured to be in the same row in the plan view and spaced apart from each other.

[0203] Multiple second optical components can be arranged in multiple rows and columns, and can be spaced apart from each other.

[0204] The display device may further include a sub-pixel circuit disposed on a substrate and electrically connected to a first light-emitting element and a second light-emitting element, wherein the sub-pixel circuit can selectively operate one of the first light-emitting element or the second light-emitting element.

[0205] A display device according to another embodiment of this application includes: a plurality of sub-pixels, wherein each of the plurality of sub-pixels includes a first light-emitting element and a second light-emitting element that emits light of the same color; a first optical component disposed on the first light-emitting element, configured to overlap with the first light-emitting element, and configured to extend horizontally in a plan view; a second optical component disposed on the second light-emitting element, configured to overlap with the second light-emitting element, and configured to extend vertically in a plan view; and a sub-pixel circuit electrically connected to the first light-emitting element and the second light-emitting element and configured to selectively operate at least one of the first light-emitting element and the second light-emitting element.

[0206] The planar shape of the first optical component can be rectangular, and the planar shape of the second optical component can be elliptical.

[0207] The cross-sectional shape of the second optical component based on its long axis and the cross-sectional shape of the second optical component based on its short axis can be curved.

[0208] The planar shape of the first optical component and the second optical component can be rectangular.

[0209] At least a portion of the top of the cross-sectional shape of the second optical component based on the long side of the second optical component may include a straight side, and the cross-sectional shape of the second optical component based on the short side of the second optical component is formed into a curved shape.

[0210] The first optical element can be configured as a plurality of first optical elements spaced apart from each other in the vertical direction, and the second optical element can be configured as a plurality of second optical elements spaced apart from each other in the horizontal direction, wherein the plurality of first optical elements and the plurality of second optical elements overlap each other at least partially in the vertical direction.

[0211] The first optical element can be configured as a plurality of first optical elements spaced apart from each other in the vertical direction, and the second optical element can be configured as a plurality of second optical elements spaced apart from each other in both the vertical and horizontal directions, wherein the plurality of first optical elements and the plurality of second optical elements overlap each other at least partially in the vertical direction.

[0212] 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 can be implemented 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. All technical concepts within the equivalent scope of the present disclosure should be construed as falling within the scope of the present disclosure.

Claims

1. A display device, comprising: substrate; A first light-emitting element is disposed on the substrate; A first optical component, configured to refract light emitted from the first light-emitting element, the first optical component having a planar shape as a shape extending in a first direction; A second light-emitting element is disposed on the substrate and configured to emit light having the same color as the light from the first light-emitting element; as well as The second optical component is configured to refract light emitted from the second light-emitting element, and the second optical component has a planar shape as a shape extending in a second direction different from the first direction.

2. The display device according to claim 1, wherein, The first direction and the second direction are orthogonal to each other.

3. The display device according to claim 1, wherein, The planar shape of the first optical component is a strip shape extending in the first direction, and the planar shape of the second optical component is a strip shape or an elliptical shape extending in the second direction.

4. The display device according to claim 3, wherein, When the planar shape of the second optical component is elliptical, the cross-sectional shape of the second optical component based on its major axis is semi-elliptical, and the cross-sectional shape of the second optical component based on its minor axis is semi-circular.

5. The display device according to claim 3, wherein, When the planar shape of the second optical component is a strip shape, at least a portion of the cross-sectional shape of the second optical component based on the long side of the second optical component includes a straight side, and the cross-sectional shape of the second optical component based on the short side of the second optical component is a semi-circular shape.

6. The display device according to claim 1, wherein, The first optical element is configured as a plurality of first optical elements, and the plurality of first optical elements are arranged in the same column in the plan view and spaced apart from each other.

7. The display device according to claim 1, wherein, The second optical element is configured as a plurality of second optical elements, and the plurality of second optical elements are arranged in the same row in the plan view and spaced apart from each other.

8. The display device according to claim 7, wherein, The plurality of second optical components are arranged in a plurality of rows and columns and are spaced apart from each other.

9. The display device according to claim 1, further comprising: Sub-pixel circuit, wherein the sub-pixel circuit is disposed on the substrate and electrically connected to the first light-emitting element and the second light-emitting element. The sub-pixel circuit is configured to selectively operate one of the first and second light-emitting elements.

10. A display device, comprising: Multiple sub-pixels; Each of the plurality of sub-pixels includes a first light-emitting element and a second light-emitting element that emit light of the same color; A first optical component is disposed on the first light-emitting element, configured to overlap with the first light-emitting element, and configured to extend horizontally in a plan view; A second optical component, disposed on the second light-emitting element, configured to overlap with the second light-emitting element, and arranged to extend vertically in a planar view; and A sub-pixel circuit electrically connected to the first light-emitting element and the second light-emitting element, and configured to selectively operate at least one of the first light-emitting element and the second light-emitting element.

11. The display device according to claim 10, wherein, The first optical component has a rectangular shape, and the second optical component has an elliptical shape.

12. The display device according to claim 11, wherein, The cross-sectional shape of the second optical component based on its long axis and its cross-sectional shape based on its short axis are curved.

13. The display device according to claim 10, wherein, The planar shapes of the first optical component and the second optical component are rectangular.

14. The display device according to claim 13, wherein, At least a portion of the top of the cross-sectional shape of the second optical component based on the long side of the second optical component includes a straight side, and the cross-sectional shape of the second optical component based on the short side of the second optical component is formed into a curved shape.

15. The display device according to claim 10, wherein, The first optical component is configured as a plurality of first optical components spaced apart from each other in the vertical direction, and the second optical component is configured as a plurality of second optical components spaced apart from each other in the horizontal direction, wherein the plurality of first optical components and the plurality of second optical components at least partially overlap each other in the vertical direction.

16. The display device according to claim 10, wherein, The first optical component is configured as a plurality of first optical components spaced apart from each other in the vertical direction, and the second optical component is configured as a plurality of second optical components spaced apart from each other in both the vertical and horizontal directions, wherein the plurality of first optical components and the plurality of second optical components at least partially overlap each other in the vertical direction.

17. A display device, comprising: A display panel comprising multiple pixels extending along a first direction and a second direction different from the first direction; Wherein, each sub-pixel of one of the plurality of pixels includes: First light-emitting element; A plurality of first optical components, each of the first optical components being configured to refract light emitted from the first light-emitting element, and having a planar shape in which the dimension in the first direction is greater than the dimension in the second direction; A second light-emitting element, configured to emit light having the same color as the light from the first light-emitting element; and A plurality of second optical components, each of which is configured to refract light emitted from the second light-emitting element and has a planar shape in which the dimension in the first direction is smaller than the dimension in the second direction.

Images