Display device
By placing first and second light-emitting diodes in the active area of the display panel and using optical components to adjust the viewing angle and brightness, the problem of uneven brightness in the display device is solved, thereby improving display quality and visibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LG DISPLAY CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-05
AI Technical Summary
Existing display devices have uneven brightness at different locations, resulting in poor image visibility, which can be particularly distracting to drivers, especially in vehicle displays.
The method employs first and second light-emitting diodes in the active area of the display panel and optical components in the second active area for optical adjustment to control the viewing angle and brightness distribution, including reducing the width of the optical components near the periphery of the substrate.
It improves the overall brightness uniformity of the display panel, reduces unclear image recognition in the peripheral areas, and provides a high-quality display effect.
Smart Images

Figure CN122161292A_ABST
Abstract
Description
[0001] This application claims priority to Korean Patent Application No. 10-2024-0177470, filed with the Korean Intellectual Property Office on December 3, 2024, the disclosure of which is incorporated herein by reference. Technical Field
[0002] This disclosure relates to display devices, and more specifically, to display devices with adjustable viewing angles. Background Technology
[0003] With the technological advancements in modern society, display devices are used in various ways to provide information to users. These devices encompass not only simple electronic displays that transmit visual information in one direction, but also a wide range of electronic devices that require more sophisticated technology to examine user input and provide information in response to that input.
[0004] For example, display devices are included in vehicles to provide various information to the driver and passengers. However, the vehicle's display devices need to display content appropriately without interfering with the vehicle's operation. For instance, the display devices need to limit the display of content that might reduce driver focus while the vehicle is in motion. Summary of the Invention
[0005] The purpose of this disclosure is to provide a display device that can suppress brightness irregularities caused by the position of the display panel.
[0006] Another objective of this disclosure is to provide a display device that improves the visibility of images in the periphery of a display panel.
[0007] The purpose of this disclosure is not limited to the above-mentioned purposes, and other purposes not mentioned above will be clearly understood by those skilled in the art from the following description.
[0008] According to one aspect of this disclosure, a display device includes: a substrate including an active region, the active region including a first active region and a second active region surrounding the first active region; a light-emitting diode disposed in the active region and including an emitting region; and an optical component disposed on the light-emitting diode, wherein, in an upper or lower region of the second active region, the optical component is displaced from the center of the emitting region.
[0009] According to another aspect of this disclosure, a display device includes: a substrate including an active region, the active region including a first active region and a second active region surrounding the first active region; a light-emitting diode disposed in the active region; and an optical component disposed on the light-emitting diode, wherein, in the second active region, the width of the optical component decreases as it approaches the periphery of the substrate.
[0010] Further details of the exemplary embodiments are included in the detailed description and the accompanying drawings.
[0011] According to this disclosure, improvements have been made to address the brightness irregularities that can occur depending on the position of the display panel, thereby making the brightness uniform across the entire area of the display panel.
[0012] Furthermore, according to this disclosure, the phenomenon that images are not correctly recognized but are brightly recognized in the peripheral area of the display panel can be improved.
[0013] Furthermore, according to this disclosure, brightness uniformity across the entire display panel is improved, thereby providing high-quality display images with lower power consumption.
[0014] The effects of this disclosure are not limited to those illustrated above; many more effects are included in this specification. Attached Figure Description
[0015] The above and other aspects, features and advantages of this disclosure will be more clearly understood from the following detailed embodiments, taken in conjunction with the accompanying drawings, wherein:
[0016] Figure 1 This is an exemplary diagram of a display device according to an exemplary embodiment of the present disclosure;
[0017] Figure 2 This is a functional block diagram of a display device according to exemplary embodiments of the present disclosure;
[0018] Figure 3 This is a schematic plan view of a display device according to exemplary embodiments of the present disclosure;
[0019] Figure 4 This is a circuit diagram illustrating an example of pixel circuitry included in a display device according to an exemplary embodiment of the present disclosure;
[0020] Figure 5 This is an enlarged plan view illustrating the placement of optical components in a first active region of a display device according to an exemplary embodiment of the present disclosure;
[0021] Figure 6 It shows along Figure 5A cross-sectional view of an example taken from line VI-VI';
[0022] Figure 7 It shows along Figure 5 A cross-sectional view of an example taken from line VII-VII';
[0023] Figure 8 This is an enlarged plan view showing the placement of optical components in the upper region of the second active region of a display device, according to an exemplary embodiment of the present disclosure.
[0024] Figure 9 It shows along Figure 8 A cross-sectional view of an example intercepted by line IX-IX';
[0025] Figure 10 This is an enlarged plan view showing the placement of optical components in the lower region of the second active region of a display device, according to an exemplary embodiment of the present disclosure.
[0026] Figure 11 It shows along Figure 10 A cross-sectional view of an example taken from line XI-XI';
[0027] Figure 12 This is an enlarged plan view illustrating the placement of an optical component in the upper region of the second active region of a display device, according to another exemplary embodiment of the present disclosure;
[0028] Figure 13 This is an enlarged plan view illustrating the placement of an optical component in the lower region of a second active region of a display device, according to another exemplary embodiment of the present disclosure.
[0029] Figure 14 This is an enlarged plan view illustrating the placement of an optical component in the left-hand region of a second active region of a display device, according to another exemplary embodiment of the present disclosure;
[0030] Figure 15 It shows along Figure 5 The line A-A' Figure 14 Example cross-sectional views taken from lines B-B' and C-C'. Detailed Implementation
[0031] The advantages and features of this disclosure, as well as methods for implementing these advantages and features, will become clear from the exemplary embodiments described in detail below and the accompanying drawings. However, this disclosure is not limited to the exemplary embodiments disclosed herein, but will be implemented in various forms. The exemplary embodiments are provided by way of example only, so that those skilled in the art can fully understand the content and scope of this disclosure.
[0032] The shapes, dimensions, ratios, angles, quantities, etc., shown in the accompanying drawings used to describe exemplary embodiments of this disclosure are merely examples, and this disclosure is not limited thereto. Throughout the specification, the same reference numerals generally denote the same elements. Furthermore, in the following description of this disclosure, detailed explanations 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.
[0033] Even without explicit explanation, components are interpreted as including the normal tolerance range.
[0034] When using terms such as “on top of,” “above,” “below,” and “next” 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.”
[0035] When an element or layer is placed "on" another element or layer, another layer or element can be directly inserted on or between the other element.
[0036] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from other components. Therefore, the first component mentioned below can be a second component in the technical concept of this disclosure.
[0037] Throughout the specification, the same reference numerals generally denote the same elements.
[0038] For ease of description, the dimensions and thickness of each component shown in the accompanying drawings are illustrated, but this disclosure is not limited to the dimensions and thickness of the components shown.
[0039] Features of various embodiments of this disclosure may be partially or completely coupled or combined with each other, may be interlocked and operated in various technical ways, and embodiments may be performed independently or in association with each other.
[0040] In the following, a display device according to exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
[0041] Figure 1 This is an exemplary diagram of a display device according to an exemplary embodiment of the present disclosure.
[0042] refer to Figure 1The display device 100 may be disposed in at least a portion of the vehicle's dashboard. The vehicle's dashboard may include features disposed in the front surface of the vehicle's front seats (e.g., driver's seat and front passenger seat). For example, input features for operating various functions of the vehicle (e.g., air conditioning, audio system, or navigation system) may be provided on the vehicle's dashboard.
[0043] Display device 100 is disposed on the vehicle's dashboard to operate as an input unit for manipulating at least some of the various functions of the vehicle. Display device 100 can provide various information related to the vehicle, such as vehicle operating information (e.g., the vehicle's current speed, remaining fuel, or mileage) or information about vehicle components (e.g., the level of damage to the vehicle's tires).
[0044] The display device 100 can span between the driver's seat and the front passenger seat in the front row of the vehicle. Users of the display device 100 can include the vehicle driver and the passenger in the front passenger seat. Both the driver and the passenger can use the display device 100.
[0045] exist Figure 1 The image may show only a portion of the display device 100. Among the various configurations included in the display device 100, Figure 1 The display device 100 shown may represent a display panel. Specifically, for example, Figure 1 The display device 100 shown can represent at least a portion of the active and non-active areas of a display panel. In the construction of the display device 100, besides... Figure 1 Construction other than the components shown may be installed inside the vehicle (or at least a portion of the vehicle interior).
[0046] Figure 2 This is a functional block diagram of a display device according to exemplary embodiments of the present disclosure.
[0047] As an exemplary embodiment of the display device according to this disclosure, an electroluminescent display device can be applied. The electroluminescent display device can be an organic light-emitting diode (OLED) display device, a quantum dot light-emitting diode display device, or an inorganic light-emitting diode display device.
[0048] refer to 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.
[0049] The display panel PN can generate images to be provided to the user. For example, the display panel PN can generate and display images to be provided to the user using multiple pixels PX that are equipped with pixel circuitry.
[0050] The data drive circuit DD, the gate drive circuit GD, and the timing controller TD can provide signals for the operation of each pixel PX via signal lines. For example, the signal lines providing signals for the operation of each pixel PX can include multiple data lines DL and multiple gate lines GL.
[0051] Multiple data lines DL are arranged in the column direction and may include multiple wirings connected to pixels PX arranged in the column direction, and multiple gate lines GL are arranged in the row direction and may include multiple wirings connected to pixels PX arranged in the row direction.
[0052] In some cases, the display device 100 may also include a power supply unit. In this case, signals for the operation of the pixels PX can be provided via a power line connecting the power supply unit and the display panel PN. According to an exemplary embodiment, the power supply unit can supply power to the data driving circuit DD and the gate driving circuit GD. The data driving circuit DD and the gate driving circuit GD can be driven based on the power supplied from the power supply unit.
[0053] For example, the data driving circuit DD can apply data signals to each pixel PX through multiple data lines DL. The gate driving circuit GD can apply gate signals to each pixel PX through multiple gate lines GL. The power supply unit can provide power voltage to each pixel PX through power supply voltage supply lines.
[0054] The timing controller TD can control the data drive circuit DD and the gate drive circuit GD. For example, the timing controller TD rearranges the externally input digital video data according to the resolution of the display panel PN to provide the digital video data to the data drive circuit DD.
[0055] The data drive circuit DD converts the digital video data input from the timing controller TD into analog data voltage based on the data control signal, and then provides the converted analog data voltage to multiple data lines DL.
[0056] The gate drive circuit (GD) can generate scan signals and light emission signals based on 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 generates scan signals in a row-sequential manner to drive at least one scan line connected to each pixel row, thereby providing the scan signal to the scan line. The light emission signal driver generates light emission signals in a row-sequential manner to drive at least one light emission signal line connected to each pixel row, thereby providing the light emission signal to the light emission signal line.
[0057] According to an exemplary embodiment, the gate driving circuit GD can be disposed in the display panel PN as a gate in-panel driver (GIP). For example, the gate driving circuit GD is divided into multiple circuits and disposed on at least two sides of the display panel PN. Figure 3 This is a schematic plan view of a display device according to exemplary embodiments of the present disclosure. For ease of description, among the various components of the display device 100, Figure 3 Only the display panel PN, multiple flexible films COF, and printed circuit board PCB are shown.
[0058] refer to Figure 3 The display device 100 according to an exemplary embodiment of the present disclosure includes a display panel PN, a plurality of flexible films COF, and a plurality of printed circuit boards PCB.
[0059] The display panel PN includes an active area AA and a passive area NA.
[0060] An active region AA is the area in the display panel PN where an image is displayed. The active region AA may include a first active region AA1 and a second active region AA2. The first active region AA1 includes the central portion of the display panel, and the second active region AA2 surrounds the first active region AA1. Therefore, the second active region AA2 may be an edge region of the active region AA. Furthermore, the second active region AA2 may include an upper region AA2_u and a lower region AA2_d, defined relative to the center line PN_CL of the display panel PN.
[0061] Let's refer to each other. Figure 2 and Figure 3 The active area AA 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 intersect with multiple gate lines GL.
[0062] A pixel PX can include multiple subpixels that emit different colors of light. For example, a pixel PX may use three subpixels to achieve blue, red, and green. However, it is not limited to this; in some cases, a pixel PX may also include subpixels that further achieve a specific color (e.g., white).
[0063] In a pixel PX, the area that represents blue can be called a blue subpixel, the area that represents red can be called a red subpixel, and the area that represents green can be called a green subpixel.
[0064] Each of the multiple pixels PX may include a first light-emitting diode and a second light-emitting diode that emit light of the same color.
[0065] Each of the plurality of pixels PX may include a first optical component that reflects light from a first light-emitting diode in a particular direction and a second optical component that reflects light from a second light-emitting diode in a particular direction. For example, the first and second optical components may be implemented as lenses, but exemplary embodiments of the present disclosure are not limited thereto.
[0066] For example, a first optical component can be disposed in an optical region that provides light within a first range to form a first viewing angle, and a second optical component can be disposed in an optical region that provides light within a second range to form a second viewing angle. The first range can be larger than the second range. Therefore, the first and second optical components can limit the viewing angle of each pixel in a plurality of pixels PX.
[0067] The following will refer to Figures 5 to 11 Describe the first optical component and the second optical component in detail.
[0068] The non-active region NA can be disposed along the periphery of the active region AA. For example, the non-active region NA can be the region surrounding the second active region AA2. Various components for driving the pixel circuitry disposed in the pixel PX can be disposed in the non-active region NA. For example, at least a portion of the gate drive circuit GD can be disposed in the non-active region NA. The non-active region NA can also be referred to as the border region.
[0069] When the display panel PN is used for reference Figure 1 When describing a vehicle, it may be necessary to limit the field of view of at least a portion of the display panel PN upon user request. For example, images displayed in the active area of the display panel PN that provide entertainment and seat information to passengers in the front passenger seat may obstruct the driver's view. Therefore, it is necessary to limit the field of view of the images displayed in the corresponding area upon user request.
[0070] Therefore, each pixel PX included in the display panel PN can be driven in either a first mode or a second mode depending on the driving mode. For example, when a pixel PX is driven in the first mode, a first light-emitting diode included in the pixel PX emits light based on a selection signal to provide light from the first light-emitting diode within a first range through a first optical component, thereby forming a first viewing angle, such as a wide viewing angle. For example, when a pixel PX is driven in the second mode, a second light-emitting diode included in the pixel PX emits light based on a selection signal to provide light from the second light-emitting diode within a second range through a second optical component, thereby forming a second viewing angle, such as a narrow viewing angle. Here, the first mode may correspond to a mode in which the pixel PX is controlled in a wide field-of-view mode (shared mode), and the second mode may correspond to a mode in which the pixel PX is driven in a narrow field-of-view mode (private mode).
[0071] Figure 4 This is a circuit diagram illustrating an example of a pixel circuit included in a display device according to an exemplary embodiment of the present disclosure.
[0072] at the same time, Figure 4 The pixel circuit PC shown is represented by the one included in the reference. Figure 2 and Figure 3 An exemplary embodiment of the pixel circuit corresponding to each of the plurality of pixels PX in the described display device 100.
[0073] refer to Figure 4 At least some of the transistors in the pixel circuit PC can be n-type transistors or p-type transistors. In the case of p-type transistors, a low-level voltage of each drive signal can represent the turn-on voltage of the TFT, and a high-level voltage of each drive signal can represent the turn-off voltage of the TFT.
[0074] Here, a low-level voltage may correspond to a predetermined voltage 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 predetermined voltage 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 exemplary 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 case, the first voltage may be lower than the second voltage.
[0075] The pixel circuit PC may include a driving transistor DT, multiple switching transistors ST1 to ST6, a first transistor T1, a second transistor T2, a storage capacitor Cst, and multiple light-emitting diodes ED1 and ED2.
[0076] The driving transistor DT can control the driving current applied to multiple light-emitting diodes 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 supply 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 can apply the 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 the first scan signal SCAN1 is applied. The first switching transistor ST1 can be turned on or off by the first scan signal SCAN1. Therefore, in response to a low level of the first scan signal SCAN1 (which is an on-state), the first switching transistor ST1 can apply the data voltage Vdata from the data line DL to the first node N1.
[0078] The second switching transistor ST2 can be diode-connected to the gate and drain electrodes 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 diode-connect the gate and drain electrodes of the driving transistor DT in response to a low level of the second scan signal SCAN2, which is the on-state level.
[0079] The third switching transistor ST3 can apply a reference voltage Vref to the first node N1. The third switching transistor ST3 may include a source electrode connected to a reference voltage line providing 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 transfer the reference voltage Vref to the first node N1 in response to a low level of the light-emitting signal EM, which is the on-state level.
[0080] The fourth switching transistor ST4 can apply a reference voltage Vref to the anode of the first light-emitting diode ED1. The fourth switching transistor ST4 may include a source electrode connected to a reference voltage line providing the reference voltage Vref, a drain electrode connected to the anode of the first light-emitting diode 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 of the first light-emitting diode ED1 in response to a low level of the second scan signal SCAN2, which is an on-state level.
[0081] The fifth switching transistor ST5 can apply a reference voltage Vref to the anode of the second light-emitting diode ED2. The fifth switching transistor ST5 may include a source electrode connected to a reference voltage line providing the reference voltage Vref, a drain electrode connected to the anode of the second light-emitting diode 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 of the second light-emitting diode ED2 in response to a low level of the second scan signal SCAN2, which is an on-state level.
[0082] The sixth switching transistor ST6 can form a current path between the driving transistor DT and any one of the plurality of light-emitting diodes 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 electrically connects the third node N3 and the fourth node N4 in response to a low level of the light-emitting signal EM, which is the on-state, to form a current path between the driving transistor DT and any one of the plurality of light-emitting diodes ED1 and ED2.
[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 stores a predetermined voltage to constantly maintain the voltage of the gate electrode of the driving transistor DT when any one of the plurality of light-emitting diodes ED1 and ED2 emits light.
[0084] The first transistor T1 can generate the current path for the first driving current of the first light-emitting diode ED1, and the second transistor T2 can generate the current path for the second driving current of the second light-emitting diode ED2.
[0085] The first transistor T1 can be connected between the fourth node N4 and the first light-emitting diode ED1, and the gate electrode of the first transistor T1 can be connected to the first selection signal line that provides the first selection signal Ss. When the pixel PX, which applies the pixel circuit PC, is driven in the first mode as a wide field-of-view mode, the first selection signal Ss is provided to the gate electrode of the first transistor T1 to turn on the first transistor T1. Therefore, a current path is formed for the first driving current of the first light-emitting diode ED1, so that the first light-emitting diode ED1 can emit light. At the same time, the first transistor T1 can be referred to as the first light-emitting control transistor that controls the light emission of the first light-emitting diode ED1.
[0086] The second transistor T2 can be connected between the fourth node N4 and the second light-emitting diode ED2, and the gate electrode of the second transistor T2 can be connected to the second selection signal line that provides the second selection signal Ps. When the pixel PX, which is applied to the pixel circuit PC, is driven in the second mode as a narrow field-of-view mode, the second selection signal Ps is provided to the gate electrode of the second transistor T2 to turn on the second transistor T2. Therefore, a current path is formed for the second driving current of the second light-emitting diode ED2, allowing the second light-emitting diode ED2 to emit light. Simultaneously, the second transistor T2 can be referred to as the second light-emitting control transistor that controls the emission of the second light-emitting diode ED2.
[0087] The first light-emitting diode ED1 can be connected between the first transistor T1, which is turned on or off by the first selection signal Ss, and the low-potential power line providing the low-potential power supply voltage VSS. The second light-emitting diode ED2 can be connected between the second transistor T2, which is turned on or off by the second selection signal Ps, and the low-potential power line providing the low-potential power supply voltage VSS.
[0088] In this configuration, the first light-emitting diode ED1 or the second light-emitting diode ED2 can be connected to another configuration of the pixel circuit PC, such as the driving transistor DT, via the first transistor T1 or the second transistor T2, which is turned on according to the driving mode. For example, the first light-emitting diode ED1 can be connected to the driving transistor DT via the first transistor T1, which is turned on in the first mode, and can provide light through the first driving current in the first mode (i.e., in a wide field-of-view mode with a wide viewing angle as the first viewing angle). Furthermore, the second light-emitting diode ED2 can be connected to the driving transistor DT via the second transistor T2, which is turned on in the second mode, and can provide light through the second driving current in the second mode (i.e., in a narrow field-of-view mode with a narrow viewing angle as the second viewing angle). Here, the driving mode can be specified by user input, or it can be determined when predetermined conditions are met.
[0089] In the first mode, only the first LED ED1 can emit light, and in the second mode, only the second LED ED2 can emit light. Here, in the first mode, the second selection signal Ps controlling the emission of the second LED ED2 can be output as a high level (cutoff level) to allow only the first LED ED1 to emit light. Furthermore, in the second mode, the first selection signal Ss controlling the emission of the first LED ED1 can be output as a high level (cutoff level) to allow only the second LED ED2 to emit light.
[0090] Figure 5 This is an enlarged plan view illustrating the placement of an optical component included in a first active region of a display device according to an exemplary embodiment of the present disclosure. Figure 6It shows along Figure 5 A cross-sectional view of an example taken from line VI-VI'. Figure 7 It shows along Figure 5 A cross-sectional view of an example taken from line VII-VII'.
[0091] at the same time, Figure 5 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).
[0092] Furthermore, as an exemplary embodiment of the display device 100, Figure 6 It shows along Figure 5 The pixel exemplified by line VI-VI' is provided with the first optical element 161. As an exemplary embodiment of the display device 100, Figure 7 It shows along Figure 5 The pixel of line VII-VII' is set with the second optical component 162.
[0093] At the same time, Figure 6 and Figure 7 For ease of description, only those related to... Figure 5 The regions shown are the first optical region GWE and the second optical region GNE of the second sub-pixel GSP, one of the three sub-pixels RSP, GSP, and BSP. However, the other sub-pixels RSP and BSP can also be formed with the same structure.
[0094] For ease of description, the horizontal direction on the plane will be referred to as the first direction X, and the vertical direction on the plane will be referred to as the second direction Y. 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.
[0095] refer to Figure 5 A pixel PX may include multiple sub-pixels RSP, GSP, and BSP representing different colors. For example, a pixel PX may include a first sub-pixel RSP that represents red, a second sub-pixel GSP that represents green, and a third sub-pixel BSP that represents blue. According to an exemplary embodiment, 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. In each of the multiple sub-pixels RSP, GSP, and BSP included in the pixel PX, a reference may be set. Figure 3 The pixel circuit PC is described.
[0096] Multiple sub-pixels RSP, GSP, and BSP may include first optical regions RWE, GWE, and BWE that provide different viewing angles, and second optical regions RNE, GNE, and BNE.
[0097] 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, each sub-pixel RSP, GSP, and BSP may include a first light-emitting diode ED1 disposed in the first optical regions RWE, GWE, and BWE of the corresponding sub-pixel RSP, GSP, and BSP, and a second light-emitting diode ED2 disposed in the second optical regions RNE, GNE, and BNE of the corresponding sub-pixel RSP, GSP, and BSP.
[0098] In a pixel PX, the first light-emitting diode ED1 and the second light-emitting diode ED2 can be respectively disposed in each of the first optical regions RWE, GWE, BWE and each of the second optical regions RNE, GNE, BNE of the multiple sub-pixels RSP, GSP and BSP.
[0099] For example, in a pixel PX, a first light-emitting diode ED1 disposed in the first optical region RWE of the first sub-pixel RSP, a second light-emitting diode ED2 disposed in the second optical region RNE of the first sub-pixel RSP, a first light-emitting diode ED1 disposed in the first optical region GWE of the second sub-pixel GSP, a second light-emitting diode ED2 disposed in the second optical region GNE of the second sub-pixel GSP, a first light-emitting diode ED1 disposed in the first optical region BWE of the third sub-pixel BSP, and a second light-emitting diode ED2 disposed in the second optical region BNE of the third sub-pixel BSP.
[0100] refer to Figure 5 In the first optical regions RWE, GWE, and BWE of each sub-pixel RSP, GSP, and BSP, at least one first optical component 161 can be provided, which is configured to overlap with the first emission regions RE1, GE1, and BE1 of the first light-emitting diode ED1. In the second optical regions RNE, GNE, and BNE of each sub-pixel RSP, GSP, and BSP, at least one second optical component 162 can be provided, which is configured to overlap with the second emission regions RE2, GE2, and BE2 of the second light-emitting diode ED2. At this time, the first optical regions RWE, GWE, and BWE can have a first viewing angle, and the second optical regions RNE, GNE, and BNE can have a second viewing angle smaller than the first viewing angle.
[0101] Let's refer to each other. Figures 5 to 7The display device 100 according to an exemplary embodiment of the present disclosure may include a substrate 110, a buffer film 111, a gate insulating film 112, a first interlayer insulating film 113, a lower protective film 114, an outer coating 115, a spacer 116, a first transistor T1, a second transistor T2, a first light-emitting diode ED1, a second light-emitting diode ED2, an encapsulation component 180, a second interlayer insulating film 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.
[0102] 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.
[0103] 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 an inorganic insulating material, such as silicon oxide (SiOx) or silicon nitride (SiNx). The buffer film 111 may have a multilayer structure. For example, the buffer film 111 may have a laminated structure of a film formed of silicon nitride (SiNx) and a film formed of silicon oxide (SiOx).
[0104] A buffer film 111 can be located between the substrate 110 and the driving portion of each sub-pixel 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 sub-pixel RSP, GSP, and BSP can be covered by the buffer film 111. The driving portion of each sub-pixel RSP, GSP, and BSP can be disposed on the buffer film 111.
[0105] 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 an inorganic insulating material, such as silicon oxide (SiO) or silicon nitride (SiN). The gate insulating film 112 may include a material with 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.
[0106] The first interlayer insulating film 113 may be disposed on the gate insulating film 112. The first interlayer insulating film 113 may include an insulating material. For example, the first interlayer insulating film 113 may include an inorganic insulating material, such as silicon oxide (SiO) or silicon nitride (SiN). The first interlayer insulating film 113 may extend between the gate electrodes 122, 132 and the source electrodes 123, 133 of transistors T1 and T2, and between the gate electrodes 122, 132 and the drain electrodes 124, 134. For example, the source electrodes 123, 133 and the drain electrodes 124, 134 of the first transistor T1 and the second transistor T2 may be insulated from the gate electrodes 122, 132 by the first interlayer insulating film 113. The first interlayer insulating film 113 may cover the gate electrodes 122, 132 of the first transistor T1 and the second transistor T2. The source electrodes 123, 133 and the drain electrodes 124, 134 of each sub-pixel RSP, GSP, BSP may be located on the first interlayer insulating film 113. The gate insulating film 112 and the first interlayer insulating film 113 can expose the source and drain regions of each semiconductor layer 121, 131 located in each sub-pixel RSP, GSP, BSP.
[0107] The lower protective film 114 may be disposed on the first interlayer insulating film 113. The lower protective film 114 may include an insulating material. For example, the lower protective film 114 may include an inorganic insulating material, such as silicon oxide (SiO) or silicon nitride (SiN).
[0108] The lower protective film 114 can suppress damage to the driving components 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 first interlayer insulating film 113 on the outside of the driving components located in each sub-pixel RSP, GSP, BSP.
[0109] 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.
[0110] The outer coating 115 can remove the steps caused by the driving portions of each sub-pixel RSP, GSP, BSP. For example, the top surface of the protective layer 115 opposite to the substrate 110 can be a flat surface.
[0111] 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 diode 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 diode ED2.
[0112] 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.
[0113] 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 first interlayer insulating film 113. The first source electrode 123 and the first drain electrode 124 may be located between the first 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.
[0114] 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, and the second gate electrode 132 may be located on the same layer as the first gate electrode 122. 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.
[0115] The first light-emitting diode ED1 and the second light-emitting diode ED2 of each sub-pixel RSP, GSP, and BSP can be located on the outer coating 115 of each sub-pixel RSP, GSP, and BSP. For example, the first lower electrode 141 of the first light-emitting diode ED1 can be electrically connected to the first drain electrode 124 or the first source electrode 123 of the first transistor T1 via a contact hole passing through the lower protective film 114 and the outer coating 115. The second lower electrode 151 of the second light-emitting diode ED2 can be electrically connected to the second drain electrode 134 or the second source electrode 133 of the second transistor T2 via a contact hole passing through the lower protective film 114 and the outer coating 115.
[0116] The first light-emitting diode ED1 can emit light representing a specific color. For example, the first light-emitting diode ED1 may include a first lower electrode 141, a first light-emitting layer 142, and a first upper electrode 143 sequentially laminated on the substrate 110.
[0117] 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 formed of metal is located between transparent electrodes formed of transparent conductive materials such as ITO and IZO. The first lower electrode 141 may be electrically connected to the first drain electrode 124 or the first source electrode 123 of the first transistor T1 via contact holes passing through the lower protective film 114 and the outer coating 115.
[0118] The first light-emitting layer 142 can generate light with a brightness corresponding to the voltage difference between the first lower electrode 141 and the first upper electrode 143. For example, the first light-emitting layer 142 may include a light-emitting material layer (EML) containing a light-emitting material. The light-emitting material may include organic materials, inorganic materials, or mixed materials.
[0119] 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.
[0120] 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 a transparent electrode formed of a transparent conductive material such as ITO and IZO. Therefore, in the display device 100 according to an exemplary embodiment of the present disclosure, light generated by the first light-emitting layer 142 can pass through the first upper electrode 143 and be emitted.
[0121] The second light-emitting diode ED2 can achieve the same color as the first light-emitting diode ED1 disposed in the same sub-pixels RSP, GSP, and BSP. For example, the second light-emitting diode ED2 may include a second lower electrode 151, a second light-emitting layer 152, and a second upper electrode 153 sequentially laminated on the substrate 110.
[0122] The second lower electrode 151 can correspond to the first lower electrode 141, the second light-emitting layer 152 can correspond to the first light-emitting layer 142, and the second upper electrode 153 can correspond to the first upper electrode 143. For example, the second lower electrode 151 can be formed with the same structure as the first lower electrode 141 for use in the second light-emitting diode ED2, and the same applies to the second light-emitting layer 152 and the second upper electrode 153. For example, the first light-emitting diode ED1 and the second light-emitting diode ED2 can be formed with the same structure. However, this is not a limitation; in some cases, at least a portion of the construction of the first light-emitting diode ED1 and the second light-emitting diode ED2 can be formed differently.
[0123] The second light-emitting layer 152 can be spaced apart from the first light-emitting layer 142. Therefore, in a display device according to an exemplary embodiment of the present disclosure, light emission caused by leakage current can be suppressed.
[0124] In a display device according to an exemplary embodiment of the present disclosure, light can be generated by only one of the first light-emitting layer 142 and the second light-emitting layer 152, either by user selection or according to predetermined conditions.
[0125] The second lower electrode 151 of each sub-pixel RSP, GSP, BSP can be spaced apart from the first lower electrode 141 of the corresponding sub-pixel RSP, GSP, BSP. For example, a partition 116 can be disposed between the first lower electrode 141 and the second lower electrode 151 of each sub-pixel RSP, GSP, BSP. The partition 116 may include an insulating material. For example, the partition 116 may include an organic insulating material. The partition 116 may include a material different from the material of the outer coating 115.
[0126] The second lower electrode 151 of each sub-pixel RSP, GSP, BSP can be insulated from the first lower electrode 141 of the corresponding sub-pixel RSP, GSP, BSP by a barrier 116. For example, the barrier 116 can cover the edge of the first lower electrode 141 and the edge of the second lower electrode 151 in each sub-pixel RSP, GSP, BSP.
[0127] The partition 116 can divide the first emission regions RE1, GE1, and BE1 of the first light-emitting diode ED1 and the second emission regions RE2, GE2, and BE2 of the second light-emitting diode ED2. For example, the first emission regions RE1, GE1, and BE1 of the first light-emitting diode ED1 can be the portion of the first lower electrode 141 exposed by the partition 116. The second emission regions RE2, GE2, and BE2 of the second light-emitting diode ED2 can be the portion of the second lower electrode 151 exposed by the partition 116. In this case, refer to... Figure 5The size of the first emission region RE1, GE1 and BE1 of the first light-emitting diode ED1 divided in each sub-pixel RSP, GSP and BSP can be larger than the size of the second emission region RE2, GE2 and BE2 of the second light-emitting diode ED2, but is not limited thereto.
[0128] The first light-emitting layer 142 and the first upper electrode 143 of the first light-emitting diode ED1 located in each sub-pixel RSP, GSP, and BSP can be laminated on the portion of the first lower electrode 141 exposed by the partition 116. Specifically, the first light-emitting layer 142 and the first upper electrode 143 can be laminated on the first emission regions RE1, GE1, BE1 and the partition 116 exposed by the partition 116. The second light-emitting layer 152 and the second upper electrode 153 of the second light-emitting diode ED2 located in each sub-pixel RSP, GSP, and BSP can be laminated on the portion of the second lower electrode 151 exposed by the partition 116. Specifically, the second light-emitting layer 152 and the second upper electrode 153 can be laminated on the second emission regions RE2, GE2, and BE2 and the partition 116 exposed by the partition 116.
[0129] The second upper electrode 153 of each sub-pixel RSP, GSP, BSP can be electrically connected to the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, BSP. For example, the voltage applied to the second upper electrode 153 of the second light-emitting diode ED2 in each sub-pixel RSP, GSP, BSP can be equal to the voltage applied to the first upper electrode 143 of the first light-emitting diode ED1 in the corresponding sub-pixel RSP, GSP, BSP. The second upper electrode 153 of each sub-pixel RSP, GSP, BSP can include the same material as the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, BSP. For example, the second upper electrode 153 of each sub-pixel RSP, GSP, BSP can be formed simultaneously with the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, BSP. The second upper electrode 153 of each sub-pixel RSP, GSP, BSP extends on the partition 116 to directly contact the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, BSP. The brightness of the first optical regions RWE, GWE, and BWE in each sub-pixel 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.
[0130] The encapsulation component 180 may be located on the first light-emitting diode ED1 and the second light-emitting diode ED2 of each sub-pixel RSP, GSP, and BSP. The encapsulation component 180 can suppress damage to the light-emitting diodes ED1 and ED2 caused by external moisture and impact. The encapsulation component 180 may have a multilayer 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 laminated sequentially, but exemplary embodiments of this disclosure are not limited thereto.
[0131] 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 may be 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 diodes ED1 and ED2 of the display device 100 caused by external moisture and impact can be effectively suppressed. As described above, when the second encapsulation layer 182 includes an organic insulating material, due to the flow properties of the organic insulating material, the height of the second encapsulation layer 182 can be reduced towards the periphery of the display panel PN. For example, in the first active region AA1, the height of the second encapsulation layer 182 can be maintained consistently, but in the second active region AA2, the height of the second encapsulation layer 182 can be reduced towards the periphery. Therefore, in the second active region AA2, the maximum height of the first optical component 161 and the second optical component 162 disposed above the second encapsulation layer 182 can also be reduced towards the periphery.
[0132] 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 partition 116.
[0133] The second interlayer insulating film 117 can be disposed on the black matrix 190. The second interlayer insulating film 117 is disposed between the encapsulation member 180, the black matrix 190 and the barrier layer 195 to isolate the barrier layer 195.
[0134] The second interlayer insulating film 117 may include an insulating material. For example, the second interlayer insulating film 117 may include organic or inorganic insulating materials, but is not limited thereto.
[0135] Multiple barrier layers 195 may be disposed on the second interlayer insulating film 117. Multiple barrier layers 195 may be disposed above the first light-emitting diode ED1 and the second light-emitting diode ED2 in the active region. The multiple barrier layers 195 may be disposed on the second interlayer insulating film 117 and spaced apart from each other.
[0136] Multiple blocking layers 195 can be configured to overlap with the partition 116 and the black matrix 190. The multiple blocking layers 195 can restrict the path of light generated by the first light-emitting diode ED1 and the second light-emitting diode ED2. For example, the multiple blocking layers 195 can block light traveling laterally from the first emission regions RE1, GE1, and BE1 and the second emission regions RE2, GE2, and BE2. That is, the multiple blocking layers 195, together with the first optical component 161 and the second optical component 162, can block light traveling laterally from the first emission regions RE1, GE1, and BE1 and the second emission regions RE2, GE2, and BE2 in each sub-pixel RSP, GSP, and BSP.
[0137] The multiple barrier layers 195 may be formed 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), and magnesium-silver alloy (Mg:Ag), but are not limited thereto.
[0138] Meanwhile, a touch buffer layer may be further disposed between the encapsulation member 180 and the blocking layer 195, but is not limited thereto.
[0139] Although not shown in the figures, multiple touch electrodes may be disposed on the second interlayer insulating film 117. These multiple touch electrodes may be configured to sense external touch input from a user's finger or stylus. In this case, multiple blocking layers 195 may be disposed on the same layer as the touch electrodes, but are not limited thereto. Furthermore, in addition to the touch electrodes, touch bridge electrodes may also be disposed on the encapsulation member 180, but are not limited thereto.
[0140] The first optical component 161 and the second optical component 162 can be disposed on the second interlayer insulating film 117.
[0141] The first optical component 161 and the second optical component 162 may be disposed on the same layer as the plurality of blocking layers 195 on the second interlayer insulating film 117. For example, the first optical component 161 and the second optical component 162 may be disposed to cover the edges of the plurality of blocking layers 195. Thus, the end of each of the first optical component 161 and the second optical component 162 may be disposed on the plurality of blocking layers 195.
[0142] At this time, the center of the first optical component 161 can be matched with the center of the first emission region RE1, GE1, BE1. In addition, the center of the second optical component 162 can be matched with the center of the second emission region RE2, GE2, BE2.
[0143] First, refer to Figure 6 The first optical component 161 can be disposed on the first light-emitting diode ED1. The light generated by the first light-emitting diode ED1 of each sub-pixel RSP, GSP, BSP can be emitted through the first optical component 161 disposed in the first optical region RWE, GWE, BWE of the corresponding sub-pixel RSP, GSP, BSP.
[0144] The first optical component 161 has a shape that does not restrict the travel of light in at least one direction. In this disclosure, the planar shape of the first optical component 161 located in each sub-pixel RSP, GSP, BSP can have a shape extending in the first direction X. For example, the planar shape of the first optical component 161 can have a strip extending in the first direction X. Therefore, the planar shape of the first optical component 161 can include a long side extending in the first direction X and a short side connecting the two ends of the long side in the second direction Y. The planar shape of the first optical component 161 can also be a rectangle with its long side located in the first direction X.
[0145] In this configuration, the direction of light travel emitted from the first optical regions RWE, GWE, and BWE of each sub-pixel RSP, GSP, and BSP can be unrestricted in the first direction X. For example, content (or images) provided by the first optical regions RWE, GWE, and BWE of each sub-pixel RSP, GSP, and BSP can be shared by people adjacent to the user in the first direction X. Therefore, content provided by light emitted through the first optical component 161 can be provided with a larger viewing angle in the first direction X, which is greater than the viewing angle of content provided by light emitted through the second optical component 162. For example, content provided by light emitted through the first optical component 161 can be provided in a wide field-of-view mode (sharing mode).
[0146] At least a portion of the top surface of the first optical element 161, in the cross-sectional shape taken along the first direction X, may be flat. Furthermore, the two side surfaces of the first optical element 161 may be formed as curves or straight lines. For example, refer to... Figure 6 The cross-sectional shape of the long side of the first optical component 161 can be formed by an upper flat surface and a curve connecting the two ends of the flat surface toward the second interlayer insulating film 117. Alternatively, for example, the cross-sectional shape of the long side of the first optical component 161 can be formed by an upper flat surface and a straight line perpendicularly connecting the two ends of the flat surface toward the second interlayer insulating film 117.
[0147] Next, refer to Figure 7 The second optical component 162 can be disposed on the second light-emitting diode ED2. Light generated by the second light-emitting diode ED2 of each sub-pixel RSP, GSP, BSP can be refracted and emitted by the second optical component 162 disposed in the second optical regions RNE, GNE, BNE of the respective sub-pixels RSP, GSP, BSP. The second optical component 162 can restrict the travel of the transmitted light in the first direction X. For example, the planar shape of the second optical component 162 located in each sub-pixel RSP, GSP, BSP can be circular. However, it is not limited to this, and the planar shape of the second optical component 162 located in each sub-pixel RSP, GSP, BSP can be polygonal.
[0148] In this configuration, the travel of light emitted from the second optical regions RNE, GNE, and BNE of each sub-pixel 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 each sub-pixel RSP, GSP, and BSP can be kept from being shared by people around the user. Therefore, the content provided by the light emitted through the second optical component 162 can be provided on the left and right sides at a smaller viewing angle than the viewing angle of 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 (privacy mode).
[0149] The cross-sectional shape of the second optical component 162 along the first direction X can be semi-circular, but is not limited thereto. The first emission regions RE1, GE1, and BE1 of each pixel PX can have shapes corresponding to the first optical components 161 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of the first emission regions RE1, GE1, and BE1 of each sub-pixel RSP, GSP, and BSP can be a strip extending in the first direction X. The first optical component 161 can have a size larger than the first emission regions RE1, GE1, and BE1 of the corresponding sub-pixels RSP, GSP, and BSP. Therefore, the efficiency of light emitted from the first emission regions RE1, GE1, and BE1 of each sub-pixel RSP, GSP, and BSP can be improved.
[0150] The second emission regions RE2, GE2, and BE2 of each sub-pixel RSP, GSP, and BSP can have shapes corresponding to the second optical components 162 of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of the second emission regions RE2, GE2, and BE2 of each sub-pixel RSP, GSP, and BSP can be circular or polygonal. The second optical components 162 can have dimensions larger than the second emission regions RE2, GE2, and BE2 of the corresponding sub-pixels RSP, GSP, and BSP. Therefore, the efficiency of light emitted from the second emission regions RE2, GE2, and BE2 of the sub-pixels RSP, GSP, and BSP can be improved.
[0151] The number of second emission regions RE2, GE2, and BE2 can vary in each sub-pixel RSP, GSP, and BSP. For example, the number of second emission regions GE2 defined in the second optical region GNE of the second sub-pixel GSP and the number of second emission regions BE2 defined in the second optical region BNE of the third sub-pixel BSP can be greater than the number of second emission regions RE2 defined in the second optical region RNE of the first sub-pixel RSP. In this case, the efficiency deviation of the second light-emitting diode ED2 located on each second optical region RNE, GNE, and BNE can be compensated by the number of second emission regions RE2, GE2, and BE2 defined in the second optical regions RNE, GNE, and BNE of each sub-pixel RSP, GSP, and BSP.
[0152] An optical component protective film 170 may be located on the first optical component 161 and the second optical component 162 of each sub-pixel 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 sub-pixel RSP, GSP, and BSP. Therefore, in the display device 100 according to an exemplary embodiment of the present disclosure, due to the difference in refractive index with the optical component protective film 170, light passing through the first optical component 161 and the second optical component 162 in each sub-pixel RSP, GSP, and BSP may not be reflected towards the substrate 110.
[0153] Figure 8 This is an enlarged plan view illustrating the placement of optical components in the upper region of the second active region of a display device, according to an exemplary embodiment of the present disclosure. Figure 9 It shows along Figure 8 A cross-sectional view of an example taken from line IX-IX'.
[0154] Specifically, Figure 8This is an enlarged plan view of the upper region AA2_u of the second active region AA2 of the display device 100 according to an exemplary embodiment of the present disclosure, relative to the panel centerline PN_CL. Furthermore, Figure 9 This is a cross-sectional view showing the short side of the first optical component 161 disposed in the upper region AA2_u of the second active region AA2.
[0155] Apart from the positions of the first optical component 161 and the second optical component 162 Figure 8 and Figure 9 All constructions of the upper region AA2_u of the second active region AA2 and Figures 5 to 7 The first active region AA1 is the same, so the redundant description will be omitted.
[0156] refer to Figure 8 and Figure 9 In the upper region AA2_u of the second active region AA2, the first optical component 161 is shifted to one side from the center of the first emission regions RE1, GE1, BE1. Furthermore, the second optical component 162 is also shifted to one side from the center of the second emission regions RE2, GE2, BE2.
[0157] Specifically, in the upper region AA2_u of the second active region AA2, the first optical component 161 and the second optical component 162 can be displaced in the same direction. For example, in the upper region AA2_u of the second active region AA2, the direction in which the first optical component 161 is displaced from the center of the first emission regions RE1, GE1, BE1 can be the same as the direction in which the second optical component 162 is displaced from the center of the second emission regions RE2, GE2, BE2. That is, regardless of their positions, the first optical component 161 and the second optical component 162 disposed in the upper region AA2_u of the second active region AA2 can be displaced in the same direction.
[0158] For example, refer to Figure 8 In the upper region AA2_u of the second active region AA2, the first optical component 161 can be shifted downward from the center of the first emitting regions RE1, GE1, BE1. In this case, as... Figure 8 As shown, the second optical component 162 located in the upper region AA2_u of the second active region AA2 can also be shifted toward the lower part of the display panel PN. Therefore, both the first optical component 161 and the second optical component 162 disposed in the upper region AA2_u of the second active region AA2 can be shifted toward the lower part of the display panel PN.
[0159] As described above, when the first emitting regions RE1, GE1, and BE1 remain unchanged and only the first optical component 161 is displaced, the first emitting regions RE1, GE1, and BE1 can be configured to be relatively offset towards the top of the first optical component 161. Similarly, when the second emitting regions RE2, GE2, and BE2 remain unchanged and only the second optical component 162 is displaced, in a plan view, the second emitting regions RE2, GE2, and BE2 can be configured to be relatively offset towards the top of the second optical component 162. Therefore, in cross-section, the center of the first optical component 161 may not match the center of the first emitting regions RE1, GE1, and BE1. Furthermore, the center of the second optical component 162 may not match the center of the second emitting regions RE2, GE2, and BE2.
[0160] In the upper region AA2_u of the second active region AA2, all displacement distances of the center of the first optical component 161 from the centers of the first emission regions RE1, GE1, and BE1 can be the same. Furthermore, in the upper region AA2_u of the second active region AA2, all displacement distances of the center of the second optical component 162 from the centers of the second emission regions RE2, GE2, and BE2 can be the same.
[0161] Furthermore, in the upper region AA2_u of the second active region AA2, the first optical component 161 and the second optical component 162 can be displaced by the same distance. Specifically, the displacement distance of the center of the first optical component 161 from the center of the first emission regions RE1, GE1, and BE1 can be exactly the same as the displacement distance of the center of the second optical component 162 from the center of the second emission regions RE2, GE2, and BE2. Therefore, in the upper region AA2_u of the second active region AA2, regardless of their positions, the first optical component 161 and the second optical component 162 can be displaced in the same direction.
[0162] When the first optical component 161 and the second optical component 162 are shifted to one side, depending on the amount of shift, at least one end of the first optical component 161 and the second optical component 162 may not cover one end of the blocking layer 195 in cross-section. For example, refer to Figure 9At least one end (i.e., the left end) of the first optical component 161 and the second optical component 162 can be spaced apart from the blocking layer 195. Therefore, at least one end of the first optical component 161 and the second optical component 162 can be disposed on the second interlayer insulating film 117. However, this is merely an example based on the displacement of the first optical component 161 and the second optical component 162; even if the first optical component 161 and the second optical component 162 are displaced, the ends can still be located on multiple blocking layers 195. In the upper region AA2_u of the second active region AA2, the first optical component 161 and the second optical component 162 can respectively cover the first emission regions RE1, GE1, and BE1 and the second emission regions RE2, GE2, and BE2. For example, the maximum width of the first optical component 161 can be greater than the maximum width of the first emission regions RE1, GE1, and BE1. Furthermore, the maximum width of the second optical component 162 can be greater than the maximum width of the second emission regions RE2, GE2, and BE2. Therefore, even if the first optical component 161 and the second optical component 162 are displaced, the first optical component 161 and the second optical component 162 can still cover the entire first emission area RE1, GE1 and BE1 and the entire second emission area RE2, GE2 and BE2, respectively.
[0163] Figure 10 This is an enlarged plan view illustrating the placement of optical components in the lower region of the second active region of a display device, according to an exemplary embodiment of the present disclosure. Figure 11 It shows along Figure 10 A cross-sectional view of an example taken from line XI-XI'.
[0164] Specifically, Figure 10 This is an enlarged plan view of the lower region AA2_d of the second active region AA2 of the display device 100 according to an exemplary embodiment of the present disclosure, relative to the panel centerline PN_CL. Furthermore, Figure 11 This is a cross-sectional view showing the short side of the first optical component 161 disposed in the lower region AA2_d of the second active region AA2.
[0165] In addition to the displacement directions of the first optical component 161 and the second optical component 162, Figure 10 and Figure 11 All constructions of the lower region AA2_d of the second active region AA2 and Figure 8 and Figure 9 The upper region AA2_u is the same, so redundant descriptions will be omitted.
[0166] Let's refer to each other. Figure 10 and Figure 11In the lower region AA2_d of the second active region AA2, the first optical component 161 can be displaced from the center of the first emitting regions RE1, GE1, BE1 towards a side different from the upper region AA2_u. Similarly, the second optical component 162 can also be displaced from the center of the second emitting regions RE2, GE2, BE2 towards a side different from the upper region AA2_u. Therefore, the first optical component 161 and the second optical component 162 can be displaced in different directions in the upper region AA2_u and the lower region AA2_d of the second active region AA2. For example, in the upper region AA2_u and the lower region AA2_d of the second active region AA2, the first optical component 161 can be displaced in opposite directions. Furthermore, in the upper region AA2_u and the lower region AA2_d of the second active region AA2, the second optical component 162 can be displaced in opposite directions. Specifically, when the first optical component 161 and the second optical component 162 are moved downward in the upper region AA2_u of the second active region AA2, the first optical component 161 and the second optical component 162 can be moved upward in the lower region AA2_d.
[0167] refer to Figure 10 In the lower region AA2_d of the second active region AA2, the first optical component 161 and the second optical component 162 can be displaced in the same direction. For example, in the lower region AA2_d of the second active region AA2, the direction in which the first optical component 161 is displaced from the center of the first emission regions RE1, GE1, and BE1 can be the same as the direction in which the second optical component 162 is displaced from the center of the second emission regions RE2, GE2, and BE2. That is, regardless of their positions, the first optical component 161 and the second optical component 162 disposed in the lower region AA2_d of the second active region AA2 can be displaced in the same direction.
[0168] For example, in the lower region AA2_d of the second active region AA2, the first optical component 161 can be moved upward from the center of the first emitting regions RE1, GE1, and BE1. In this case, the second optical component 162 located in the lower region AA2_d of the second active region AA2 can be moved towards the upper part of the display panel PN. Therefore, both the first optical component 161 and the second optical component 162 disposed in the lower region AA2_d of the second active region AA2 can be moved towards the upper part of the display panel PN.
[0169] As described above, when the first emitting regions RE1, GE1, and BE1 remain unchanged and only the first optical component 161 is displaced, the first emitting regions RE1, GE1, and BE1 can be configured to be relatively offset towards the bottom of the first optical component 161. Similarly, when the second emitting regions RE2, GE2, and BE2 remain unchanged and only the second optical component 162 is displaced, in the plane, the second emitting regions RE2, GE2, and BE2 can be configured to be relatively offset towards the bottom of the second optical component 162. Therefore, in cross-section, the center of the first optical component 161 may not match the center of the first emitting regions RE1, GE1, and BE1. Furthermore, the center of the second optical component 162 may not match the center of the second emitting regions RE2, GE2, and BE2.
[0170] In the lower region AA2_d of the second active region AA2, all displacement distances of the center of the first optical component 161 from the centers of the first emission regions RE1, GE1, and BE1 can be the same. Furthermore, in the lower region AA2_d of the second active region AA2, all displacement distances of the center of the second optical component 162 from the centers of the second emission regions RE2, GE2, and BE2 can be the same.
[0171] Furthermore, in the lower region AA2_d of the second active region AA2, the first optical component 161 and the second optical component 162 can be displaced by the same distance. Specifically, the displacement distance of the center of the first optical component 161 from the center of the first emission regions RE1, GE1, and BE1 and the displacement distance of the center of the second optical component 162 from the center of the second emission regions RE2, GE2, and BE2 can all be the same. Therefore, in the lower region AA2_d of the second active region AA2, regardless of their positions, the first optical component 161 and the second optical component 162 can be displaced in the same direction.
[0172] refer to Figure 11When the first optical component 161 and the second optical component 162 are shifted to one side, depending on the amount of shift, at least one end (i.e., the right end) of the first optical component 161 and the second optical component 162 may not cover one end of the blocking layer 195 in cross-section. For example, the right end of the first optical component 161 and the second optical component 162 may be spaced apart from the blocking layer 195. Therefore, at least one end of the first optical component 161 and the second optical component 162 may be disposed on the second interlayer insulating film 117. However, this is merely an example based on the amount of shift of the first optical component 161 and the second optical component 162; even if the first optical component 161 and the second optical component 162 are shifted, the ends may still be located on multiple blocking layers 195. In the lower region AA2_d of the second active region AA2, the first optical component 161 and the second optical component 162 may respectively cover the first emission regions RE1, GE1 and BE1 and the second emission regions RE2, GE2 and BE2. For example, the maximum width of the first optical component 161 can be greater than the maximum width of the first emission regions RE1, GE1, and BE1. Furthermore, the maximum width of the second optical component 162 can be greater than the maximum width of the second emission regions RE2, GE2, and BE2. Therefore, even if the first optical component 161 and the second optical component 162 are displaced, they can still cover the entire first emission regions RE1, GE1, and BE1 and the entire second emission regions RE2, GE2, and BE2, respectively.
[0173] Meanwhile, if the LED is exposed to moisture or oxygen, its characteristics may deteriorate rapidly, depending on the materials of the light-emitting layer. Therefore, to prevent moisture or oxygen from penetrating the LED from the outside, an encapsulation component can be provided on the LED. This encapsulation component can be formed as multiple layers of different materials. At least one of the multiple encapsulation components can be formed of an organic material. Unlike inorganic materials, organic materials have flow properties, allowing the encapsulation component formed of the organic material to flow towards the periphery of the display panel and thus tilt. The tilt of the at least one encapsulation component formed of the organic material towards the periphery of the display panel causes the structures provided on the encapsulation component to tilt as well.
[0174] As described above, the inclined peripheral region of the packaging member can extend not only to the non-active region but also to a portion of the active region. However, when the packaging member is inclined in a portion of the active region, the height of the uppermost point of the optical lens disposed on the packaging member can also be reduced. For example, as the packaging member flows toward the substrate toward the periphery of the active region, the height of the uppermost point of the optical lens disposed on the packaging member can also be reduced toward the periphery of the active region.
[0175] As mentioned above, the height of the highest point of the optical component decreases as it approaches the periphery of the active region, resulting in an increase in the cut-off angle. As mentioned above, when the cut-off angle increases, there may be a problem where the image is not correctly recognized but is instead brightly recognized in the corresponding area. To suppress this problem, the non-active region surrounding the active region can be expanded further. However, if the non-active region is expanded, there may be a problem where the border area where the image is not visible increases unnecessarily.
[0176] Therefore, in the display device 100 according to an exemplary embodiment of the present disclosure, in the second active region AA2, which is a peripheral region of the active region AA, the first optical component 161 and the second optical component 162 are shifted to one side. As described above, in the second active region AA2 where the cutoff angle may increase, the first optical component 161 and the second optical component 162 are shifted to suppress the increase of the cutoff angle.
[0177] That is, the first optical component 161 and the second optical component 162 are shifted to maintain the cutoff angle of the second active region AA2, which is the edge region, equal to the cutoff angle of the first active region AA1, which is the center region. Therefore, the brightness difference between the first active region AA1 and the second active region AA2 can be reduced.
[0178] Therefore, the overall brightness of the first active region AA1 and the second active region AA2 can be maintained uniformly. This improves the phenomenon where the image is not correctly recognized but is instead brightly recognized in the second active region AA2. Thus, a high-quality image with uniform brightness can be achieved throughout the entire active region AA.
[0179] Figure 12 This is an enlarged plan view illustrating the placement of an optical component in the upper region of the second active region of a display device, according to another exemplary embodiment of the present disclosure. Figure 13 This is an enlarged plan view illustrating the placement of an optical component in the lower region of a second active region of a display device, according to another exemplary embodiment of the present disclosure.
[0180] Specifically, Figure 12 This is an enlarged plan view of the upper region AA2_u of the second active region AA2 of the display device 200 relative to the center line PN_CL of the panel. Figure 13 This is an enlarged plan view of the lower region AA2_d of the second active region AA2 of the display device 200 relative to the center line PN_CL of the panel. Figure 12 and Figure 13 The display device 200 and Figures 1 to 11The only difference between the display devices 100 is the displacement of the first optical component 261 and the second optical component 262, but the other structures are basically the same, so redundant descriptions will be omitted.
[0181] refer to Figure 12 and Figure 13 In the upper region AA2_u of the second active region AA2, the first optical component 261 and the second optical component 262 can be shifted in the same direction. Specifically, in the upper region AA2_u of the second active region AA2, both the first optical component 261 and the second optical component 262 can be shifted downwards.
[0182] At this time, in the upper region AA2_u of the second active region AA2, the shift distances of all the first optical components 261 and the second optical components 262 may be different in each pixel PX. For example, the shift distances of all the first optical components 261 and the second optical components 262 disposed in pixels PX adjacent to each other in the first direction X may be the same. Conversely, the shift distances of the first optical components 261 and the second optical components 262 disposed in pixels PX adjacent to each other in the second direction Y may be different from each other. Specifically, the shift distances of the first optical components 261 and the second optical components 262 disposed in pixels PX with relatively higher positions on the plane may be different from the shift distances of the first optical components 261 and the second optical components 262 disposed in pixels PX with relatively lower positions.
[0183] refer to Figure 12 In the upper region AA2_u of the second active region AA2, the displacement distance of the first optical component 261 and the second optical component 262 can be increased upwards. Specifically, in the upper region AA2_u of the second active region AA2, the relatively higher-positioned first optical component 261 and the second optical component 262 can be shifted downwards more than the relatively lower-positioned first optical component 261 and the second optical component 262.
[0184] As described above, when the first optical component 261 and the second optical component 262 are moved downwards, the uppermost ends of the first optical component 261 and the second optical component 262 can be close to the uppermost ends of the first emission regions RE1, GE1, and BE1 and the second emission regions RE2, GE2, and BE2 on the plane. For example, the distance from the uppermost end of the relatively higher-positioned first optical component 261 to the uppermost end of the first emission regions RE1, GE1, and BE1 can be shorter than the distance from the uppermost end of the relatively lower-positioned first optical component 261 to the uppermost end of the first emission regions RE1, GE1, and BE1. Similarly, the distance from the uppermost end of the relatively higher-positioned second optical component 262 to the uppermost end of the second emission regions RE2, GE2, and BE2 can be shorter than the distance from the uppermost end of the relatively lower-positioned second optical component 262 to the uppermost end of the second emission regions RE2, GE2, and BE2.
[0185] Conversely, refer to Figure 13 For example, in the lower region AA2_d of the second active region AA2, the displacement distance of the first optical component 261 and the second optical component 262 can be increased downwards. Specifically, in the lower region AA2_d of the second active region AA2, the relatively lower-set first optical component 261 and the second optical component 262 can be displaced upwards more than the relatively higher-set first optical component 261 and the second optical component 262.
[0186] As described above, when the first optical component 261 and the second optical component 262 are moved upwards, the lowest points of the first optical component 261 and the second optical component 262 can be close to the lowest points of the first emission regions RE1, GE1, and BE1 and the second emission regions RE2, GE2, and BE2 on the plane. For example, the distance from the lowest point of the relatively lower-positioned first optical component 261 to the lowest point of the first emission regions RE1, GE1, and BE1 can be shorter than the distance from the lowest point of the relatively higher-positioned first optical component 261 to the lowest point of the first emission regions RE1, GE1, and BE1. Similarly, the distance from the lowest point of the relatively lower-positioned second optical component 262 to the lowest point of the second emission regions RE2, GE2, and BE2 can be shorter than the distance from the lowest point of the relatively higher-positioned second optical component 262 to the lowest point of the second emission regions RE2, GE2, and BE2.
[0187] Simultaneously, also within the second active region AA2 of the active region AA, the closer to the periphery (i.e., the non-active region NA), the more severe the tilt of the encapsulation member 180. As described above, the more severe the tilt of the encapsulation member 180, the larger the cutoff angle. Therefore, in a display device 200 according to another exemplary embodiment of the present disclosure, the displacement distance of the first optical member 261 and the second optical member 262 can increase upward in the upper region AA2_u of the second active region AA2 and downward in the lower region AA2_d. In this way, the severity of the cutoff angle increasing towards the periphery in the second active region AA2 can be suppressed.
[0188] As described above, the shift distances of the first optical region 261 and the second optical region 262 in the second active region AA2 are set to be different, thereby reducing the brightness difference that may occur in the second active region AA2. Therefore, the brightness difference between the first active region AA1 and the second active region AA2 can be reduced.
[0189] Therefore, the overall brightness of the first active region AA1 and the second active region AA2 can be maintained more uniformly. Consequently, the phenomenon of the image being incorrectly recognized but instead brightly recognized in the second active region AA2 can be better improved. Therefore, a high-quality image with more uniform brightness can be achieved throughout the entire active region AA.
[0190] Figure 14 This is an enlarged plan view illustrating the placement of an optical component in the left-hand region of the second active region of a display device, according to another exemplary embodiment of the present disclosure. Figure 15 It shows along Figure 5 The line A-A' Figure 14 Example cross-sectional views taken from lines B-B' and C-C'.
[0191] Specifically, Figure 14 This is an enlarged plan view of the second active area AA2 of the display device 300. Figure 15 A cross-sectional view taken along line A-A' is shown, that is, the cross-sectional shape of the second optical member 162 disposed in the first active region AA1 of the display device 300 in the short-side direction. Furthermore, Figure 15 The cross-sectional view taken along lines B-B' and C-C' is shown, that is, the cross-sectional shape of the second optical component 362 disposed in the second active region AA2 in the direction of the short side.
[0192] Figure 14 and Figure 15 The display device 300 and Figures 1 to 11 The only difference between the display devices 100 is the first optical component 361 and the second optical component 362, but the other structures are basically the same, so redundant descriptions will be omitted.
[0193] refer to Figure 14 In the second active region AA2, the vertical widths of the first optical component 361 and the second optical component 362 can be smaller than the vertical widths of the first optical component 161 and the second optical component 162 disposed in the first active region AA1. Specifically, although not shown in the figure, the first optical component 161 and the second optical component 162 can have the same size in the first active region AA1. For example, in the first active region AA1, all the first optical components 161 can have the same size in the plane. Furthermore, in the first active region AA1, all the second optical components 162 can have the same size in the plane.
[0194] Conversely, in the second active region AA2, the vertical width of the first optical component 361 and the second optical component 362 on the plane can be smaller than the vertical width of the first optical component 161 and the second optical component 162 in the first active region AA1.
[0195] Specifically, in the second active region AA2, the width of the first optical component 361 in the vertical direction (i.e., the short side direction) can be smaller than the width of the first optical component 161 in the vertical direction of the first active region AA1. Similarly, the vertical width of the second optical component 362 in the second active region AA2 can be smaller than the vertical width of the second optical component 162 in the first active region AA1. Therefore, on the plane, the width of the second optical component 362 in the vertical direction (i.e., the second direction Y) of the second active region AA2 can be smaller than its width in the horizontal direction (i.e., the first direction X).
[0196] Although not shown in the figure, in the second active region AA2, the first optical component 361 and the second optical component 362 can have the same dimensions on the plane. For example, in the second active region AA2, all the first optical components 361 can have the same dimensions on the plane. Furthermore, in the second active region AA2, all the second optical components 362 can have the same dimensions on the plane.
[0197] In addition, when referring to Figure 14In the description, in the left region of the second active region AA2, the first optical component 361 and the second optical component 362 disposed in adjacent pixels PX in the second direction Y can have the same size in the plane. For example, in the left region of the second active region AA2, all the first optical components 361 disposed in adjacent pixels PX in the second direction Y can have the same size in the plane. Similarly, in the left region of the second active region AA2, all the second optical components 362 disposed in adjacent pixels PX in the second direction Y can have the same size in the plane. Also, even though not shown in the figure, in the right region of the second active region AA2, all the first optical components 361 disposed in adjacent pixels PX in the second direction Y can have the same size in the plane. Furthermore, in the right region of the second active region AA2, all the second optical components 362 disposed in adjacent pixels PX in the second direction Y can have the same size in the plane.
[0198] In the second active region AA2, the closer to the periphery (corresponding to...) Figure 14 The smaller the vertical width of the first optical component 361 and the second optical component 362 (on the left side of the image), the smaller the vertical width of the first optical component 361 and the second optical component 362. Figure 14 This is an enlarged plan view of the left-side region of the second active region AA2, located on the left side of the display panel PN. Therefore, in Figure 14 In the context of the second active region AA2, the outermost direction can refer to the left. Referring to this, the closer to the outermost direction (i.e., the closer to the left), the smaller the vertical width of the first optical component 361 and the second optical component 362. Specifically, the vertical width of the first optical component 361 and the second optical component 362 disposed in a pixel PX located further out can be smaller than the vertical width of the first optical component 361 and the second optical component 362 disposed in an adjacent pixel PX on the right.
[0199] Meanwhile, even if not shown in the figure, in the right region of the second active region AA2 located on the right side of the display panel PN, the vertical width of the first optical component 361 and the second optical component 362 disposed in a pixel PX located further out to the right can be smaller than the vertical width of the first optical component 361 and the second optical component 362 disposed in another pixel PX located further to the left.
[0200] In the upper region of the second active region AA2 located on the upper side of the display panel PN, the vertical width of the first optical component 361 and the second optical component 362 disposed in a pixel PX located on the outer side can be smaller than the vertical width of the first optical component 361 and the second optical component 362 disposed in another pixel PX located at a lower position.
[0201] Furthermore, in the lower region of the second active region AA2 located below the display panel PN, the vertical width of the first optical component 361 and the second optical component 362 disposed in a pixel PX located further out on the lower side can be smaller than the vertical width of the first optical component 361 and the second optical component 362 disposed in another pixel PX located at a higher position.
[0202] Figure 15 The diagram shows the left-hand region of a first active region AA1 and a second active region AA2 located to the left of the display panel PN, where the left side represents the periphery of the display panel PN. (Reference) Figure 15 In cross-section, the closer to the periphery of the first active region AA1, i.e., the closer to the left side of the second active region AA2, the smaller the width in the second direction Y. Conversely, the thickness of the first optical components 161 and 361 and the second optical components 162 and 362 in the third direction Z can be the same throughout the first active region AA1 and the second active region AA2. As another example, the first optical components 161 and 361 and the second optical components 162 and 362 can have the same maximum thickness throughout the first active region AA1 and the second active region AA2. Therefore, the closer to the periphery of the display panel PN, the smaller the ratio of the width in the second direction Y to the thickness in the third direction Z in the second active region AA2.
[0203] Furthermore, in at least a portion of the second active region AA2, the two ends of the second optical member 362 may not be disposed on the blocking layer 195. For example, the width in the second direction Y decreases towards the periphery of the second active region AA2, such that in at least a portion of the peripheral region, the two ends of the second optical member 362 may be spaced apart from the blocking layer 195.
[0204] At the same time, even Figure 14 and Figure 15 The first optical component 361 and the second optical component 362 are shown to be in constant position, but this disclosure is not limited thereto. For example, the first optical component 361 and the second optical component 362 disposed in the second active region AA2 of another display device 300 disclosed herein can be arranged in accordance with... Figures 1 to 13 The first optical components 161 and 261 and the second optical components 162 and 262 of the display devices 100 and 200 are shifted in the same manner.
[0205] As described above, in the display device 300 according to another exemplary embodiment of the present disclosure, in the second active region AA2, the width of the first optical member 361 and the second optical member 362 in the second direction Y is smaller the closer they are to the periphery of the display panel PN. Furthermore, the ratio of the width of the first optical member 361 and the second optical member 362 in the second direction Y to their thickness in the third direction Z can be varied. This can suppress the severity of the increased cutoff angle in the second active region AA2.
[0206] Furthermore, the ratio of the width of the first optical component 361 and the second optical component 362 in the second active region AA2 in the second direction Y to the thickness in the third direction Z is set to be different to reduce the brightness difference that may occur in the second active region AA2. Therefore, the brightness difference between the first active region AA1 and the second active region AA2 can be further reduced.
[0207] Therefore, the overall brightness of the first active region AA1 and the second active region AA2 can be maintained more uniformly. Consequently, the phenomenon of the image being incorrectly recognized but instead brightly recognized in the second active region AA2 can be better improved. Therefore, a high-quality image with more uniform brightness can be achieved throughout the entire active region AA.
[0208] An exemplary embodiment of this disclosure can be described as follows:
[0209] A display device according to one aspect of this disclosure includes: a substrate including an active region, the active region including a first active region and a second active region, the second active region surrounding the first active region and including an upper region and a lower region; a first light-emitting diode disposed in the active region and including a first emitting region; a first optical component disposed on the first light-emitting diode; a second light-emitting diode disposed in the active region, emitting light of the same color as the first light-emitting diode, and including a second emitting region; and a second optical component disposed on the second light-emitting diode and having a shape different from that of the first optical component, wherein, in the second active region, the first optical component is displaced to one side from the center of the first emitting region, and the second optical component is displaced to one side from the center of the second emitting region.
[0210] In the upper region of the second active region, the first optical component and the second optical component can be displaced in the same direction, and in the lower region of the second active region, the first optical component and the second optical component can be displaced in the same direction.
[0211] The first optical component and the second optical component can be shifted in different directions in the upper region and the lower region of the second active region.
[0212] In the upper region, the first optical component and the second optical component can be displaced toward the lower region, and in the lower region, the first optical component and the second optical component can be displaced toward the upper region.
[0213] All displacement distances between the center of the first optical component and the center of the first emission region can be the same, and all displacement distances between the center of the second optical component and the center of the second emission region can be the same.
[0214] The displacement distance between the center of the first optical component and the center of the first emission region can be the same as the displacement distance between the center of the second optical component and the center of the second emission region.
[0215] In the upper region of the second active region, the closer to the top, the greater the displacement distance between the first optical component and the second optical component can be; and in the lower region of the second active region, the closer to the bottom, the greater the displacement distance between the first optical component and the second optical component can be.
[0216] The display device may further include a blocking layer disposed on the first light-emitting diode and the second light-emitting diode, wherein, in the first active region, the ends of the first optical component and the second optical component may be disposed on the blocking layer, and in the second active region, at least one end of the first optical component and the second optical component may be spaced apart from the blocking layer.
[0217] In the second active region, the closer to the periphery, the smaller the height of the uppermost part of the first optical component and the second optical component can be.
[0218] A display device according to another aspect of this disclosure includes: a substrate including an active region, the active region including a first active region and a second active region surrounding the first active region; a first light-emitting diode and a second light-emitting diode disposed in the active region; a first optical component disposed on the first light-emitting diode; and a second optical component disposed on the second light-emitting diode and having a planar shape different from that of the first optical component, wherein, in the second active region, the widths of the first optical component and the second optical component are smaller closer to the periphery.
[0219] The first optical component and the second optical component may have the same maximum thickness.
[0220] The planar shape of the first optical component may be a strip with a long side and a short side perpendicular to the long side, and the first optical component may have a width in the direction of the short side, which may decrease towards the periphery in the second active region.
[0221] In the second active region, the width of the second optical component may decrease outward in the same direction as the short side direction of the first optical component.
[0222] In the first active region, each of the first optical component and the second optical component may have the same width in the direction of the short side of the first optical component.
[0223] In the second active region, the closer to the periphery, the smaller the height of the uppermost part of the first optical component and the second optical component.
[0224] Although exemplary embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the present disclosure is not limited thereto and may be 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: A substrate, the substrate including an active region, the active region including a first active region and a second active region surrounding the first active region; A light-emitting diode, wherein the light-emitting diode is disposed in the active region and includes an emitting region; as well as An optical component, wherein the optical component is disposed on the light-emitting diode; In the upper or lower region of the second active region, the center of the optical component is shifted from the center of the emission region.
2. The display device according to claim 1, wherein, The light-emitting diode includes a first light-emitting diode having a first emitting region, and a second light-emitting diode having a second emitting region that emits light of the same color as the first light-emitting diode. The optical components include a first optical component disposed on the first light-emitting diode, and a second optical component disposed on the second light-emitting diode and having a different shape from the first optical component. Specifically, in the upper or lower region of the second active region, the center of the first optical component is shifted from the center of the first emitting region, and the center of the second optical component is shifted from the center of the second emitting region.
3. The display device according to claim 2, wherein, In the upper region of the second active region, the first optical component and the second optical component are displaced in the same direction, and in the lower region of the second active region, the first optical component and the second optical component are displaced in the same direction.
4. The display device according to claim 1, wherein, The optical component is shifted in different directions in the upper and lower regions of the second active region.
5. The display device according to claim 4, wherein, In the upper region of the second active region, the optical component is displaced toward the lower region, and in the lower region of the second active region, the optical component is displaced toward the upper region.
6. The display device according to claim 1, wherein, In the upper region of the second active region, all displacement distances of the center of the optical component from the center of the emission region are the same, or In the lower region of the second active region, all displacement distances of the center of the optical component from the center of the emission region are the same.
7. The display device according to claim 2, wherein, In the upper region of the second active region, the displacement distance of the center of the first optical component from the center of the first emitting region is the same as the displacement distance of the center of the second optical component from the center of the second emitting region, or In the lower region of the second active region, the displacement distance between the center of the first optical component and the center of the first emitting region is the same as the displacement distance between the center of the second optical component and the center of the second emitting region.
8. The display device according to claim 1, wherein, In the upper or lower region of the second active region, the closer to the periphery of the substrate, the greater the displacement distance of the optical component.
9. The display device according to claim 1, further comprising: A barrier layer is disposed on the light-emitting diode. In the first active region, the end of the optical component is disposed on the blocking layer, and in the upper region or the lower region of the second active region, at least one end of the optical component is spaced apart from the blocking layer.
10. The display device according to claim 1, wherein, In the second active region, the closer to the periphery of the substrate, the smaller the height of the uppermost part of the optical component.
11. The display device according to claim 1, wherein, The width of the optical component disposed in the left or right region of the second active region is smaller than the width of the optical component disposed in the first active region.
12. The display device according to claim 11, wherein, The width of the optical component disposed in the left or right region of the second active region in the direction from the upper region to the lower region is smaller than the width of the optical component disposed in the first active region in the direction from the upper region to the lower region.
13. The display device according to claim 11, wherein, In the left or right region of the second active region, the closer to the periphery of the substrate, the smaller the width of the optical component.
14. A display device, comprising: A substrate, the substrate including an active region, the active region including a first active region and a second active region surrounding the first active region; A light-emitting diode, wherein the light-emitting diode is disposed in the active region; as well as An optical component, wherein the optical component is disposed on the light-emitting diode; In the second active region, the closer to the periphery of the substrate, the smaller the width of the optical component.
15. The display device according to claim 14, wherein, In the second active region, the closer the optical component is to the periphery of the substrate in the first direction, the smaller its width in the second direction perpendicular to the first direction.
16. The display device according to claim 14, wherein, The light-emitting diode includes a first light-emitting diode and a second light-emitting diode that emit light of the same color. The optical components include a first optical component disposed on the first light-emitting diode and a second optical component disposed on the second light-emitting diode and having a planar shape different from that of the first optical component.
17. The display device according to claim 16, wherein, In the second active region, the first optical component and the second optical component have the same maximum thickness.
18. The display device according to claim 16, wherein, The first optical component has a planar shape that is a strip with a long side and a short side perpendicular to the long side, and in the second active region, the width of the short side of the first optical component decreases toward the periphery of the substrate.
19. The display device according to claim 18, wherein, In the second active region, the width of the second optical component in the direction of the short side of the first optical component decreases toward the periphery of the substrate.
20. The display device according to claim 15, wherein, In the first active region, the optical component has the same width in the second direction.
21. The display device according to claim 14, wherein, In the second active region, the closer to the periphery of the substrate, the smaller the height of the uppermost part of the optical component.