Display device

Abstract

A display device is provided. According to one aspect of the present disclosure, a display device includes: a substrate including a display area in which a plurality of pixels are disposed, the pixels including a plurality of sub-pixels representing different colors, and a non-display area surrounding the display area; a first light emitting diode and a second light emitting diode disposed in each of the plurality of sub-pixels; a first optical member disposed to overlap a light emitting region of the first light emitting diode and provide a viewing angle having a first value; a plurality of second optical members disposed to overlap a light emitting region of the second light emitting diode and provide a viewing angle having a second value lower than the first value; and a protective film disposed on the first optical member.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Korean Patent Application No. 10-2024-0030042 filed on February 29, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a display device, and more particularly, to a display device capable of controlling a viewing angle and having excellent display quality and reliability. Background Art

[0004] An organic light-emitting diode (OLED), a self-luminous device, includes an anode, a cathode, and an organic compound layer formed between the anode and cathode. The organic compound layer is composed of a hole transport layer (HTL), an emissive layer (EML), and an electron transport layer (ETL). When a driving voltage is applied to the anode and cathode, holes that pass through the hole transport layer (HTL) and electrons that pass through the electron transport layer (ETL) migrate to the emissive layer (EML) to form excitons, causing the emissive layer (EML) to generate visible light. Unlike liquid crystal display devices, which include a backlight as a separate light source, organic light-emitting display devices include organic light-emitting diodes as self-luminous devices and are used for various purposes with their fast response speed, high luminous efficiency, high brightness, and wide viewing angle.

[0005] Organic light-emitting display devices have no viewing angle restrictions, but recently, demands for viewing angle restrictions have emerged for reasons such as privacy and information protection. However, viewing angle restrictions vary depending on whether the user is driving and whether the driver or front passenger is viewing the display, necessitating selective viewing angle switching. Furthermore, in some countries, media playing in the front passenger seat is prohibited from being exposed to the driver's seat, necessitating selective viewing angle switching.

[0006] In response to these needs, display devices have been developed that include a viewing angle control element and a touch sensor unit on a display panel to adjust the viewing angle. However, in display devices with this structure, the viewing angle control element and the touch sensor unit are manufactured on separate substrate members and then laminated, resulting in a complex structure and limiting the reduction in thickness of the display device. Consequently, technologies are being actively developed to embed the viewing angle control element and the touch sensor unit within the display panel. Summary of the Invention

[0007] An object to be achieved by the present disclosure is to provide a display device capable of selectively controlling viewing angles.

[0008] Another object to be achieved by exemplary embodiments of the present disclosure is to provide a display device that minimizes a brightness difference between modes in a function of selectively providing different viewing angle modes.

[0009] Still another object achieved by exemplary embodiments of the present disclosure is to provide a display device that solves yellowing defects generated at outer edges by suppressing penetration of moisture and oxygen from the outer edges.

[0010] Yet another object to be achieved by the present disclosure is to provide a display device with excellent reliability.

[0011] The objects of the present disclosure are not limited to the above objects, and those skilled in the art may clearly understand other objects not mentioned above from the following description.

[0012] According to one aspect of the present disclosure, a display device includes: a substrate, the substrate including a display area and a non-display area, a plurality of pixels are arranged in the display area, the pixels including a plurality of sub-pixels representing different colors, and the non-display area surrounds the display area; a first light-emitting diode and a second light-emitting diode are arranged in each of the plurality of sub-pixels; a first optical component, the first optical component is arranged to overlap with the light-emitting area of ​​the first light-emitting diode and provide a viewing angle having a first value; a plurality of second optical components, the plurality of second optical components are arranged to overlap with the light-emitting area of ​​the second light-emitting diode and provide a viewing angle having a second value lower than the first value; and a protective film arranged on the first optical component.

[0013] Additional details of exemplary embodiments are included in the detailed description and accompanying drawings.

[0014] In the display device according to the present disclosure, the viewing angle may be selectively controlled.

[0015] In the display device according to the present disclosure, a sharing phenomenon of content that should not be shared by a vehicle driver is improved to minimize a user's safety problem.

[0016] In the display device according to the present disclosure, in the function of selectively providing different viewing angle modes, the brightness difference between the modes is minimized to provide an excellent viewing angle control function and display quality.

[0017] In the display device according to the present disclosure, moisture and oxygen penetrating from the outer edge are suppressed to improve yellowing defects generated in the non-display area.

[0018] The effects according to the present disclosure are not limited to those exemplified above, and more various effects are included in this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other aspects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is an exemplary diagram of a display device according to an exemplary embodiment of the present disclosure;

[0021] Figure 2 is a functional block diagram of a display device according to an exemplary embodiment of the present disclosure;

[0022] Figure 3 is a circuit diagram illustrating an example of a pixel circuit of a display device according to an exemplary embodiment of the present disclosure;

[0023] Figure 4 is an enlarged plan view illustrating placement of an optical member included in one pixel of a display device according to an exemplary embodiment of the present disclosure;

[0024] Figure 5 It is along Figure 4 A cross-sectional view taken along line AA';

[0025] Figure 6 It is along Figure 4 A cross-sectional view taken along line BB';

[0026] Figure 7 is a cross-sectional view of a non-display area of ​​a display device according to an exemplary embodiment of the present disclosure;

[0027] Figure 8 is a cross-sectional view of a display device according to another exemplary embodiment of the present disclosure;

[0028] Figure 9 is a cross-sectional view of a display device according to yet another exemplary embodiment of the present disclosure;

[0029] Figure 10 is a graph showing the results of yellowing degree evaluation of the panels according to Exemplary Embodiments 3-1 and 3-2 and Comparative Example 3. DETAILED DESCRIPTION

[0030] The advantages and features of the present disclosure and the methods for achieving these advantages and features will be clear by referring to the exemplary embodiments described in detail below and the accompanying drawings. However, the present disclosure is not limited to the exemplary embodiments disclosed herein, but will be implemented in various forms. The exemplary embodiments are provided only as examples so that those skilled in the art can fully understand what is disclosed in the present disclosure and the scope of the present disclosure.

[0031] The shapes, sizes, ratios, angles, quantities, etc. shown in the drawings for describing the exemplary embodiments of the present disclosure are merely examples, and the present disclosure is not limited thereto. Throughout the specification, the same reference numerals generally represent the same elements. In addition, in the following description of the present disclosure, detailed explanations of known related arts may be omitted to avoid unnecessarily obscuring the subject matter of the present disclosure. Terms such as "including," "having," and "consisting of" used herein are generally intended to allow the addition of other components, unless these terms are used together with the term "only." Unless expressly stated otherwise, any reference to the singular may include the plural.

[0032] Even if not explicitly stated, the components are interpreted as including the ordinary error range.

[0033] When terms such as "on," "over," "below," and "next" are used to describe the positional relationship between two parts, one or more parts may be located between the two parts unless these terms are used together with the term "immediately" or "directly."

[0034] When an element or layer is referred to as being “on” another element or layer, the other layer or element can be directly on or interposed between the other element.

[0035] 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 may be the second component in the technical concept of the present disclosure.

[0036] Throughout the specification, like reference numerals generally refer to like elements.

[0037] For convenience of description, the size and thickness of each component shown in the drawings are illustrated, and the present disclosure is not limited to the size and thickness of the components shown.

[0038] The features of the various embodiments of the present disclosure may be partially or completely attached or combined with each other, may be interlocked and operated in technically various ways, and the embodiments may be performed independently or in association with each other.

[0039] Meanwhile, the term optical member used in the present disclosure may be defined as a lens.

[0040] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings.

[0041] Figure 1 is an exemplary diagram of a display device according to an exemplary embodiment of the present disclosure.

[0042] The display device 100 may be provided in at least a portion of a vehicle's dashboard. The vehicle's dashboard includes components provided in front of the vehicle's front seats (e.g., the driver's seat and the front passenger seat). For example, the vehicle's dashboard may include input components for operating various vehicle functions (e.g., the air conditioning system, the audio system, or the navigation system).

[0043] In an exemplary embodiment, the display device 100 is provided on the dashboard of the vehicle to operate as an input unit for manipulating at least a portion of various functions of the vehicle. The display device 100 can provide various information related to the vehicle, such as vehicle operating information (e.g., the current speed, remaining fuel level, or mileage of the vehicle) or information about vehicle components (e.g., the damage level of the vehicle tires).

[0044] In an exemplary embodiment, the display device 100 may be arranged across a driver's seat and a front passenger seat in a front row of seats of a vehicle. Users of the display device 100 may include the driver of the vehicle and a passenger sitting in the front passenger seat. Both the driver and the passenger of the vehicle may use the display device 100.

[0045] In an exemplary embodiment, Figure 1 Only a portion of the display device 100 may be shown. 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 may represent at least a portion of a display area and a non-display area of ​​a display panel. Figure 1 Configurations other than those shown may be installed within the vehicle interior (or at least a portion of the vehicle interior).

[0046] Figure 2 is a functional block diagram of a display device according to an exemplary embodiment of the present disclosure.

[0047] As a display device according to an exemplary embodiment of the present disclosure, an electroluminescent display device may be applied, and the electroluminescent display device may use 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 T-con.

[0049] In an exemplary embodiment, the display panel PN may generate an image to be provided to a user. For example, the display panel PN may generate and display an image to be provided to a user through a plurality of pixels PX provided with pixel circuits.

[0050] The data driving circuit DD, the gate driving circuit GD, and the timing controller T-con may provide signals for the operation of the pixel PX through the signal lines. For example, the signal lines may include data lines DL and gate lines GL.

[0051] In some cases, the display device may further include a power supply unit. In this case, signals for operating the pixels PX may be provided via a power line connecting the power supply unit and the display panel PN. According to exemplary embodiments, the power supply unit may supply power to the data drive circuit DD and the gate drive circuit GD. The data drive circuit DD and the gate drive circuit GD may be driven based on the power supplied by the power supply unit.

[0052] For example, the data driving circuit DD may apply a data signal to each pixel PX through a data line DL. The gate driving circuit GD may apply a gate signal to each pixel PX through a gate line GL. The power supply unit may provide a power voltage to each pixel PX through a power voltage supply line.

[0053] The timing controller T-con can control the data driving circuit DD and the gate driving circuit GD. For example, the timing controller T-con rearranges digital video data input from the outside according to the resolution of the display panel PN to provide the digital video data to the data driving circuit DD.

[0054] The data driving circuit DD converts digital video data input from the timing controller T-con into analog data voltages based on the data control signal to supply the converted analog data voltages to the plurality of data lines DL.

[0055] The gate drive circuit GD can generate scan signals and light-emitting signals (or light-emitting control signals) based on the gate control signals. The gate drive circuit GD can include a scan driver and a light-emitting signal driver. The scan driver can generate scan signals in a row-sequential manner to drive at least one scan line connected to each pixel row, thereby providing the scan signals to the scan lines. The light-emitting signal driver can generate light-emitting signals in a row-sequential manner to drive at least one light-emitting signal line connected to each pixel row, thereby providing the light-emitting signals to the light-emitting signal lines.

[0056] According to an exemplary embodiment, the gate driving circuit GD may be provided in the display panel PN in a gate-in-panel (GIP) manner. For example, the gate driving circuit GD is divided into a plurality of circuits to be provided on at least two side surfaces of the display panel PN.

[0057] The display panel PN may include a display area DA and a non-display area NDA.

[0058] The display area DA may include a plurality of pixels PX. In the pixels PX, a plurality of data lines (eg, Figure 2 data lines DL) and a plurality of gate lines (eg, Figure 2 The subpixels are arranged in the intersection area. Each subpixel included in a pixel PX can emit light of different colors. For example, a pixel PX uses three subpixels to achieve blue, red, and green. However, this is not limited to this. In some cases, a pixel PX may further include subpixels for achieving a specific color (e.g., white).

[0059] In the pixel PX, a region that realizes blue is referred to as a blue sub-pixel, a region that realizes red is referred to as a red sub-pixel, and a region that realizes green is referred to as a green sub-pixel.

[0060] In an exemplary embodiment, a pixel PX may include multiple sub-pixels. Each of the multiple sub-pixels may be divided into a first optical component region and a second optical component region that provide different viewing angles. For example, a pixel PX may include a first optical component region that provides light within a first range to form a first viewing angle, and a second optical component region that provides light within a second range to form a second viewing angle. The first range may be larger than the second range.

[0061] A non-display area NDA may be provided around the display area DA. Various components for driving pixel circuits provided in the pixels PX may be provided in the non-display area NDA. For example, at least a portion of the gate drive circuit GD may be provided in the non-display area NDA. The non-display area NDA may be referred to as a bezel area.

[0062] Figure 3 1 is a circuit diagram illustrating an example of a pixel circuit of a display device according to an exemplary embodiment of the present disclosure. A pixel PX may include a plurality of sub-pixels representing different colors and a pixel circuit PC corresponding to the plurality of sub-pixels. Figure 3 An example of a pixel circuit PC provided in one sub-pixel in a pixel PX is shown.

[0063] refer to Figure 3 , the pixel circuit PC may include nine transistors and one capacitor.

[0064] The pixel circuit PC may include a first transistor T1 , a second transistor T2 , a third transistor T3 , a 4-1 th transistor T41 , a 4-2 th transistor T42 , a fifth transistor T5 , a sixth transistor T6 , a seventh transistor T7 , a driving transistor DT, and a capacitor Cst.

[0065] At least some of the nine transistors included in the pixel circuit PC may be n-type transistors or p-type transistors. In the case of p-type transistors, the low-level voltage of each drive signal may represent a voltage that turns on the TFT, and the high-level voltage of each drive signal may represent a voltage that turns off the TFT.

[0066] Here, the low-level voltage may correspond to a predetermined voltage lower than the high-level voltage. For example, the low-level voltage may include a voltage corresponding to a range of -8V to -12V. The high-level voltage may correspond to a predetermined voltage higher than the low-level voltage. For example, the high-level voltage may include a voltage corresponding to a range of 12V to 16V. According to an exemplary embodiment, the low-level voltage may be referred to as a first voltage, and the high-level voltage may be referred to as a second voltage. In this case, the first voltage may be lower than the second voltage. However, the ranges of the low-level voltage and the high-level voltage are illustrative and not limited thereto.

[0067] Here, the first electrode or the second electrode of the transistor described below may represent a source electrode or a drain electrode. However, the terms first electrode and second electrode are terms used to distinguish electrodes without limiting how they correspond to each electrode. In addition, in each electrode, the first electrode may not represent the same electrode. For example, the first electrode of the first transistor T1 may represent the source electrode of the first transistor T1, and the first electrode of the sixth transistor T6 may represent the drain electrode of the sixth transistor T6.

[0068] In an exemplary embodiment, the driving transistor DT may be connected to a first transistor T1 connected to the first light emitting diode 140 and a second transistor T2 connected to the second light emitting diode 150. For example, a second electrode of the driving transistor DT may be connected to the first transistor T1 and the second transistor T2.

[0069] In an exemplary embodiment, the driving transistor DT may be connected to a first power line L17 that provides a high-potential power voltage ELVDD. For example, a first electrode of the driving transistor DT may be connected to the first power line L17. When the driving transistor DT is turned on, the high-potential power voltage ELVDD provided by the first power line L17 may be transmitted from the first electrode to the second electrode of the driving transistor DT.

[0070] In an exemplary embodiment, the first transistor T1 may be connected to at least one of the first light emitting diode 140 , the second transistor T2 , the 4-1 th transistor T41 , and the seventh transistor T7 .

[0071] For example, the first electrode of the first transistor T1 may be connected to at least one of the second transistor T2 and the seventh transistor T7. The seventh transistor T7 may be connected to the driving transistor DT and the fifth transistor T5. The second electrode of the first transistor T1 may be connected to at least one of the first light-emitting diode 140 and the 4-1 transistor T41. The gate electrode of the first transistor T1 may be connected to the first control line L10. The first transistor T1 may be turned on or off by a first control signal S(k) provided via the first control line L10. When the first transistor T1 is turned on, the voltage across the driving transistor DT and the seventh transistor T7 may be input to the first light-emitting diode 140 (e.g., the anode of the first light-emitting diode 140).

[0072] Here, the first control signal S(k) may include a kth first control signal, and when the pixel circuit PC is arranged in the kth (k is a positive integer) column, the kth first control signal is provided to the kth column. The first control signal S(k) is provided by a mode controller (or a mode control circuit) and may control the driving (or emission) of the first light-emitting diode 140 in which the first optical member (i.e., the first lens) is arranged.

[0073] In an exemplary embodiment, the second transistor T2 may be connected to at least one of the second light emitting diode 150 , the first transistor T1 , the 4-2 nd transistor T42 , and the seventh transistor T7 .

[0074] For example, the first electrode of the second transistor T2 can be connected to at least one of the first transistor T1 and the seventh transistor T7. The second electrode of the second transistor T2 can be connected to at least one of the 4-2 transistor T42 and the second light-emitting diode 150. The seventh transistor T7 can be connected to the driving transistor DT and the fifth transistor T5. The gate electrode of the second transistor T2 can be connected to the second control line L20. The second transistor T2 can be turned on or off by a second control signal P(k) provided via the second control line L20. When the second transistor T2 is turned on, the voltage across the driving transistor DT and the seventh transistor T7 can be input to the second light-emitting diode 150 (e.g., the anode of the second light-emitting diode 150).

[0075] Here, the second control signal P(k) may include a kth second control signal, and when the pixel circuit PC is arranged in the kth (k is a positive integer) column, the kth second control signal is provided to the kth column. The second control signal P(k) is provided by a mode controller (or a mode control circuit) and may control the driving (or emission) of the second light-emitting diode 150 in which the second optical member (i.e., the second lens) is arranged.

[0076] In one exemplary embodiment, a first optical member may be provided above the first LED 140. Due to the first optical member, the viewing angle of the region where the first LED 140 is provided may correspond to a first value. For example, the viewing angle of the region where the first LED 140 is provided may be equal to or greater than the first value. A second optical member may be provided above the second LED 150. Due to the second optical member, the viewing angle of the region where the second LED 150 is provided may correspond to a second value. The second value may be smaller than the first value. For example, the viewing angle of the region where the second LED 150 is provided may be equal to or less than the second value.

[0077] In an exemplary embodiment, the region where the first light emitting diode 140 is provided with the pixel circuit PC may have a first viewing angle to provide light to a range corresponding to the front passenger seat and the driver's seat next to the front passenger seat. The region where the second light emitting diode 150 is provided may have a second viewing angle to provide light to a range corresponding to the front passenger seat.

[0078] In an exemplary embodiment, the third transistor T3 may be connected to at least one of the 4-1 th transistor T41 , the 4-2 th transistor T42 , the sixth transistor T6 , and the capacitor Cst.

[0079] For example, the first electrode of the third transistor T3 can be connected to the sixth transistor T6 and the capacitor Cst. The second electrode of the third transistor T3 can be connected to the 4-1st transistor T41 and the 4-2nd transistor T42. The gate electrode of the third transistor T3 can be connected to the emission signal line L15 that provides the emission signal EM(n). When the pixel circuit PC is arranged in the nth (n is a positive integer) pixel row, the emission signal EM(n) can correspond to the nth emission signal EM(n) provided to the nth row. The third transistor T3 can be turned on or off by the emission signal EM(n). The second electrode of the third transistor T3 can be connected to a reference voltage line L11 that provides a reference voltage Vref, such as a second power supply line.

[0080] In an exemplary embodiment, the 4-1 th transistor T41 may be connected to at least one of the first transistor T1 , the third transistor T3 , and the first light emitting diode 140 .

[0081] For example, a first electrode of the 4-1st transistor T41 may be connected to the third transistor T3. A second electrode of the 4-1st transistor T41 may be connected to the first transistor T1 and the first light emitting diode 140. A gate electrode of the 4-1st transistor T41 may be connected to the n-th second scan line L13. Therefore, the 4-1st transistor T41 may be provided with the n-th second scan signal Scan2(n) and may be turned on or off by the n-th second scan signal Scan2(n).

[0082] In an exemplary embodiment, the 4-2 th transistor T42 may be connected to at least one of the second transistor T2 , the third transistor T3 , and the second light emitting diode 150 .

[0083] For example, a first electrode of the 4-2 transistor T42 may be connected to the third transistor T3. A second electrode of the 4-2 transistor T42 may be connected to the second transistor T2 and the second light emitting diode 150. A gate electrode of the 4-2 transistor T42 may be connected to the n-th second scan line L13. Therefore, the 4-2 transistor T42 may be provided with the n-th second scan signal Scan2(n) and may be turned on or off by the n-th second scan signal Scan2(n).

[0084] In exemplary embodiments, the fifth transistor T5 may be connected to at least one of the driving transistor DT, the 4-1st transistor T41, the 4-2nd transistor T42, the capacitor Cst, and the seventh transistor T7.

[0085] For example, a first electrode of the fifth transistor T5 can be connected to the driving transistor DT and the capacitor Cst. A second electrode of the fifth transistor T5 can be connected to the driving transistor DT and the seventh transistor T7. A gate electrode of the fifth transistor T5 can be connected to the nth second scan line L13 in the nth row to which the second scan signal Scan2(n) is supplied. The fifth transistor T5 can be supplied with the nth second scan signal Scan2(n) and can be turned on or off by the nth second scan signal Scan2(n).

[0086] According to an exemplary embodiment, the nth first scan line L18 may provide the nth first scan signal. In this case, the nth first scan signal may be provided to the gate electrode of the sixth transistor T6. The nth second scan line L13 may provide the nth second scan signal. In this case, the nth second scan signal may be provided to the gate electrodes of the 4-1st transistor T41, the 4-2nd transistor T42, and the fifth transistor T5.

[0087] In exemplary embodiments, the sixth transistor T6 may be connected to at least one of the third transistor T3 and the capacitor Cst.

[0088] For example, a first electrode of the sixth transistor T6 can be connected to the third transistor T3 and the capacitor Cst. A second electrode of the sixth transistor T6 can be connected to a data line L16 providing a data voltage Vdata. A gate electrode of the sixth transistor T6 can be connected to an nth first scan line L18 providing an nth first scan signal Scan1(n). The sixth transistor T6 can be provided with the nth first scan signal Scan1(n) and can be turned on or off by the nth first scan signal Scan1(n). When the sixth transistor T6 is turned on, the data voltage Vdata can be transmitted from the second electrode to the first electrode.

[0089] In exemplary embodiments, the seventh transistor T7 may be connected to at least one of the first transistor T1 , the second transistor T2 , the fifth transistor T5 , and the driving transistor DT.

[0090] For example, the first electrode of the seventh transistor T7 can be connected to at least one of the fifth transistor T5 and the driving transistor DT. The second electrode of the seventh transistor T7 can be connected to at least one of the first transistor T1 and the second transistor T2. The gate electrode of the seventh transistor T7 can be connected to the emission signal line L30 that provides the emission signal EM(n). The seventh transistor T7 can be turned on or off based on the emission signal EM(n). When the seventh transistor T7 is turned on, a voltage (or current) can be supplied from the first electrode of the seventh transistor T7 to the second electrode.

[0091] In an exemplary embodiment, the first light emitting diode 140 and / or the second light emitting diode 150 may be connected to a third power line L19 that provides a low potential power voltage ELVSS. For example, the cathode of the first light emitting diode 140 and the cathode of the second light emitting diode 150 may be connected to the third power line L19 to be provided with the low potential power voltage ELVSS.

[0092] According to an exemplary embodiment, the low potential power voltage may include a ground voltage (eg, 0 V). For example, the cathodes of the first and second light emitting diodes 140 and 150 may be supplied with a voltage corresponding to ground, but are not limited thereto.

[0093] Figure 4 is an enlarged plan view illustrating placement of optical members included in one pixel of a display device according to an exemplary embodiment of the present disclosure. Figure 5 It is along Figure 4 A cross-sectional view taken along line AA'. Figure 6 It is along Figure 4 A cross-sectional view taken along line BB'. Figure 4 A plane of a pixel PX is shown when three sub-pixels RSP, GSP, and BSP are provided in one pixel PX. Figure 5 Shown along Figure 4 The cross section taken along line AA' is Figure 6 Shown along Figure 4 However, despite the Figure 5 and Figure 6 , for convenience of description, only the first optical member region RWE and the second optical member region RNE corresponding to the red subpixel RSP among the plurality of subpixels RSP, GSP, and BSP are shown, but the other subpixels GSP and BSP may be formed in the same configuration.

[0094] First, refer to Figure 4 , the pixel PX may include a plurality of sub-pixels RSP, GSP, and BSP representing different colors. For example, the pixel PX may include a blue sub-pixel BSP for realizing blue, a red sub-pixel RSP for realizing red, and a green sub-pixel GSP for realizing green. According to an exemplary embodiment, the blue sub-pixel BSP may correspond to the first sub-pixel, the red sub-pixel RSP may correspond to the second sub-pixel, and the green sub-pixel GSP may correspond to the third sub-pixel. The pixel circuit PC may correspond to each of the sub-pixels RSP, GSP, and BSP. The corresponding pixel circuit PC (for example, Figure 3 The pixel circuit PC) can be set in each sub-pixel RSP, GSP and BSP.

[0095] The sub-pixels RSP, GSP, and BSP may include first optical member regions RWE, GWE, and BWE and second optical member regions RNE, GNE, and BNE, respectively providing different viewing angles.

[0096] The second optical member regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP may operate independently of the first optical member regions RWE, GWE, and BWE of the corresponding pixel PX. For example, in each of the sub-pixels RSP, GSP, and BSP, a first light emitting diode 140 (e.g., Figure 3 ) and the second light emitting diode 150 (e.g., Figure 3 The first light emitting diodes 140 are located in the first optical member regions RWE, GWE, and BWE corresponding to the sub-pixels RSP, GSP, and BSP, and the second light emitting diodes 150 are located in the second optical member regions RNE, GNE, and BNE corresponding to the sub-pixels RSP, GSP, and BSP.

[0097] In one pixel PX, the first and second light emitting diodes 140 and 150 may be disposed in respective first and second optical member regions RWE, GWE, BWE and RNE, GNE, BNE in the plurality of sub-pixels RSP, GSP, and BSP.

[0098] For example, in a pixel PX, there may be provided: a first light-emitting diode 140 provided in the first optical component area RWE of the red sub-pixel RSP, a second light-emitting diode 150 provided in the second optical component area RNE of the red sub-pixel RSP, a first light-emitting diode 140 provided in the first optical component area GWE of the green sub-pixel GSP, a second light-emitting diode 150 provided in the second optical component area GNE of the green sub-pixel GSP, a first light-emitting diode 140 provided in the first optical component area BWE of the blue sub-pixel BSP, and a second light-emitting diode 150 provided in the second optical component area BNE of the blue sub-pixel BSP.

[0099] refer to Figure 4 , a first optical member 161 is provided in the first optical member regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP, and the first optical member 161 is provided to overlap with the first light emitting regions RE1, GE1, and BE1 of the first light emitting diode 140. A plurality of second optical members 162 are provided in the second optical member regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP, and the plurality of second optical members 162 are provided to overlap with the second light emitting regions RE2, GE2, and BE2 of the second light emitting diode 150. At this time, the first optical member regions RWE, GWE, and BWE may have a first value of viewing angle, and the second optical member regions RNE, GNE, and BNE may have a second value of viewing angle that is greater than the first value of viewing angle. At the same time, reference will be made below together Figure 5 and Figure 6 A specific placement structure of the first optical member 161 and the plurality of second optical members 162 is described.

[0100] Reference together Figure 5 and Figure 6 The display device 100 according to an exemplary embodiment of the present disclosure may include a substrate 110, a buffer layer 111, a gate insulating layer 112, an interlayer insulating layer 113, a lower protective layer 114, an outer coating layer 115, a first transistor T1, a second transistor T2, a first light emitting diode 140, a second light emitting diode 150, an encapsulation member 180, a touch insulating layer 117, a touch electrode TE, a first optical member 161, a second optical member 162, a protective film 165 and an organic layer 170.

[0101] The substrate 110 may be provided to support other components provided on the substrate 110. 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, but is not limited thereto.

[0102] A buffer layer 111 may be located between the substrate 110 and the driving portion of each sub-pixel RSP, GSP, or BSP. The buffer layer 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, or BSP may be covered by the buffer layer 111. The driving portion of each sub-pixel RSP, GSP, or BSP may be disposed on the buffer layer 111.

[0103] The buffer layer 111 may include an insulating material. For example, the buffer layer 111 may include an inorganic insulating material such as silicon oxide (SiOx) or silicon nitride (SiNx). The buffer layer 111 may have a multilayer structure. For example, the buffer layer 111 may have a laminated structure of a film formed of silicon nitride (SiNx) and a film formed of silicon oxide (SiOx), but is not limited thereto.

[0104] The gate insulating layer 112 may be located on the buffer layer 111. The gate insulating layer 112 may extend between the semiconductor layer and the gate electrode of the transistor. For example, the gate electrodes 122 and 132 of the first transistor T1 and the second transistor T2 may be isolated from the semiconductor layers 121 and 131 of the first transistor T1 and the second transistor T2 by the gate insulating layer 112. The gate insulating layer 112 may cover the first semiconductor layer 121 and the second semiconductor layer 131 of each sub-pixel RSP, GSP, and BSP. The gate electrodes 122 and 132 of the first transistor T1 and the second transistor T2 may be located on the gate insulating layer 112.

[0105] The gate insulating layer 112 may include an insulating material. For example, the gate insulating layer 112 may include an inorganic insulating material, such as silicon oxide (SiO) or silicon nitride (SiN). The gate insulating layer 112 may include a material having a high dielectric constant. For example, the gate insulating layer 112 may include a high-k material, such as hafnium oxide (HfO). The gate insulating layer 112 may have a multilayer structure, but is not limited thereto.

[0106] The interlayer insulating layer 113 may be located on the gate insulating layer 112. The interlayer insulating layer 113 may extend between the gate electrode and the source electrode, and between the gate electrode and the drain electrode of the transistor. For example, the source electrodes 123 and 133 and the drain electrodes 124 and 134 of the first transistor T1 and the second transistor T2 may be isolated from the gate electrodes 122 and 132 by the interlayer insulating layer 113. The interlayer insulating layer 113 may cover the gate electrodes 122 and 132 of the first transistor T1 and the second transistor T2. The source electrodes 123 and 133 and the drain electrodes 124 and 134 of each sub-pixel RSP, GSP, and BSP may be located on the interlayer insulating layer 113. The gate insulating layer 112 and the interlayer insulating layer 113 may expose the source region and the drain region of each semiconductor layer 121 and 131.

[0107] The interlayer insulating layer 113 may include an insulating material. For example, the interlayer insulating layer 113 may include an inorganic insulating material such as silicon oxide (SiO) or silicon nitride (SiN). The interlayer insulating layer 113 may be located on the gate insulating layer 112, but is not limited thereto.

[0108] A lower protective layer 114 may be located on the interlayer insulating layer 113. The lower protective layer 114 may suppress damage to the driving unit due to external moisture and impact. The lower protective layer 114 may extend along the surfaces of the first transistor T1 and the second transistor T2. The lower protective layer 114 may contact the interlayer insulating layer 113 outside the driving unit in each sub-pixel RSP, GSP, BSP.

[0109] The lower protective layer 114 may include an insulating material. For example, the lower protective layer 114 may include an inorganic insulating material such as silicon oxide (SiO) or silicon nitride (SiN), but is not limited thereto.

[0110] The overcoat layer 115 may be positioned on the lower protective layer 114. The overcoat layer 115 may remove a step caused by the driving portion of each sub-pixel RSP, GSP, BSP. For example, the top surface of the overcoat layer 115 opposite to the substrate 110 may be a flat surface.

[0111] The overcoat layer 115 may include an insulating material. The overcoat layer 115 may include a material different from that of the lower protective layer 114. For example, the overcoat layer 115 may include an organic insulating material, but is not limited thereto.

[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 .

[0113] For example, the first semiconductor layer 121 may be located between the buffer layer 111 and the gate insulating layer 112, and the first gate electrode 122 may be located between the gate insulating layer 112 and the interlayer insulating layer 113. The first source electrode 123 and the first drain electrode 124 may be located between the interlayer insulating layer 113 and the lower protective layer 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 .

[0115] 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.

[0116] The first transistor T1 may be formed simultaneously with the second transistor T2 .

[0117] The first light-emitting diode 140 and the second light-emitting diode 150 of each sub-pixel RSP, GSP, and BSP may be located on the outer coating layer 115 of each sub-pixel RSP, GSP, and BSP. For example, the first lower electrode 141 of the first light-emitting diode 140 may 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 layer 114 and the outer coating layer 115. The second lower electrode 151 of the second light-emitting diode 150 may 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 layer 114 and the outer coating layer 115.

[0118] The first light-emitting diode 140 can emit light of a specific color. For example, the first light-emitting diode 140 can include a first lower electrode 141, a first light-emitting layer 142, and a first upper electrode 143 sequentially laminated on the substrate 110. In this case, the first lower electrode 141 can be the anode of the first light-emitting diode 140, and the first upper electrode 143 can be the cathode of the first light-emitting diode 140.

[0119] The first lower electrode 142 may be formed of a transparent conductive material, such as indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto.

[0120] If desired, the first lower electrode 141 may optionally include a reflective layer below a transparent conductive layer formed of a transparent conductive material, or may be formed in a multilayer structure with a reflective layer disposed between multiple transparent conductive layers, but is not limited thereto. The reflective layer may include a material having a high reflectivity. For example, the first lower electrode 141 may include a reflective layer formed of a metal such as aluminum (Al) or silver (Ag), but is not limited thereto.

[0121] The first light emitting layer 142 may generate light having a brightness corresponding to the voltage difference between the first lower electrode 141 and the first upper electrode 143. For example, the first light emitting layer 142 may include an emitting material layer (EML) including an emitting material. The emitting material may include an organic material, an inorganic material, or a hybrid material.

[0122] The first light emitting layer 142 may have a multi-layer structure. For example, the first light emitting layer 142 may further include at least one of a hole injection layer HIL, a hole transport layer HTL, an electron transport layer ETL, and an electron injection layer EIL.

[0123] 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 the transmittance 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. Alternatively, the first upper electrode 143 may be a transparent electrode formed of a metal material with a very thin thickness. Therefore, in the display device 100 according to the exemplary embodiment of the present disclosure, the light generated by the first light-emitting layer 142 may be emitted through the first upper electrode 143.

[0124] The second light-emitting diode 150 can achieve the same color as the first light-emitting diode 140 disposed in the same sub-pixel RSP, GSP, BSP. For example, the second light-emitting diode 150 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. In this case, the second lower electrode 151 may be the anode of the second light-emitting diode 150, and the second upper electrode 153 may be the cathode of the second light-emitting diode 150.

[0125] The second lower electrode 151 includes the same technical features as the first lower electrode 141 , and thus redundant description will be omitted.

[0126] refer to Figure 5 and Figure 6 , the second light-emitting layer 152 may correspond to the first light-emitting layer 142, and the second upper electrode 153 may correspond to the first upper electrode 143. For example, the second light-emitting layer 152 and the second upper electrode 153 of the second light-emitting diode 150 may be formed in the same structure as the first light-emitting layer 142 and the first upper electrode 143 of the first light-emitting diode 140. For example, the light-emitting layers 142 and 152 and the upper electrodes 143 and 153 of the first light-emitting diode 140 and the second light-emitting diode 150 may be formed to have the same structure. However, this is not limiting, and in some cases, at least part of the configuration of the light-emitting layers 142 and 152 and the upper electrodes 143 and 153 of the first light-emitting diode 140 and the second light-emitting diode 150 may be formed to be different.

[0127] In an exemplary embodiment, the second light emitting layer 152 may be spaced apart from the first light emitting layer 142. Therefore, in the display device according to an exemplary embodiment of the present disclosure, light emission caused by leakage current may be suppressed.

[0128] According to an exemplary embodiment of the present disclosure, in the display device 100 , light may be generated by only one of the first light emitting layer 142 and the second light emitting layer 152 by a user's selection or according to a predetermined condition.

[0129] The second lower electrode 151 of each sub-pixel RSP, GSP, BSP may be spaced apart from the first lower electrode 141 of the corresponding sub-pixel RSP, GSP, BSP. For example, a bank insulating layer 116 may be located between the first lower electrode 141 and the second lower electrode 151 of each sub-pixel RSP, GSP, BSP. The bank insulating layer 116 may include an insulating material. For example, the bank insulating layer 116 may include an organic insulating material. The bank insulating layer 116 may include a material different from that of the overcoat layer 115, but is not limited thereto.

[0130] The second lower electrode 151 of each sub-pixel RSP, GSP, BSP may be isolated from the first lower electrode 141 of the corresponding sub-pixel RSP, GSP, BSP by the bank insulating layer 116. For example, the bank insulating layer 116 may 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.

[0131] The bank insulating layer 116 can divide the light emitting area of ​​the first light emitting diode 140 and the light emitting area of ​​the second light emitting diode 150. For example, the edge area of ​​the first lower electrode 141 covered by the bank insulating layer 116 can divide the light emitting area of ​​the first light emitting diode 140. The edge area of ​​the second lower electrode 151 covered by the bank insulating layer 116 can divide the light emitting area of ​​the second light emitting diode 150. Figure 4 The size of the light emitting area of ​​the first light emitting diode 140 divided in each sub-pixel RSP, GSP, BSP may be larger than the size of the light emitting area of ​​the second light emitting diode 150, but is not limited thereto.

[0132] The first light-emitting layer 142 and the first upper electrode 143 of the first light-emitting diode 140 located in each sub-pixel RSP, GSP, and BSP may be disposed on the first lower electrode 141 and the bank insulating layer 116. Specifically, the first light-emitting layer 142 and the first upper electrode 143 may be laminated on the partial region of the first lower electrode 141 exposed by the bank insulating layer 116 and the bank insulating layer 116. The second light-emitting layer 152 and the second upper electrode 153 of the second light-emitting diode 150 located in each sub-pixel RSP, GSP, and BSP may be disposed on the second lower electrode 151 and the bank insulating layer 116. Specifically, the second light-emitting layer 152 and the second upper electrode 153 may be laminated on the partial region of the second lower electrode 151 exposed by the bank insulating layer 116 and the bank insulating layer 116.

[0133] The second upper electrode 153 of each sub-pixel RSP, GSP, or BSP can be electrically connected to the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, or BSP. For example, the voltage applied to the second upper electrode 153 of the second light-emitting diode 150 located in each sub-pixel RSP, GSP, or BSP can be equal to the voltage applied to the first upper electrode 143 of the first light-emitting diode 140 located in the corresponding sub-pixel RSP, GSP, or BSP. The second upper electrode 153 of each sub-pixel RSP, GSP, or BSP can include the same material as the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, or BSP. For example, the second upper electrode 153 of each sub-pixel RSP, GSP, or BSP can be formed simultaneously with the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, or BSP. The second upper electrode 153 of each sub-pixel RSP, GSP, or BSP extends to the top surface of the bank insulating layer 116 to directly contact the first upper electrode 143 of the corresponding sub-pixel RSP, GSP, or BSP. The luminance of the first optical member areas RWE, GWE, and BWE and the luminance of the second optical member areas RNE, GNE, and BNE in each subpixel RSP, GSP, and BSP may be controlled by the driving current generated in the corresponding subpixel RSP, GSP, and BSP.

[0134] The encapsulation member 180 may be located on the first light-emitting diode 140 and the second light-emitting diode 150 of each sub-pixel RSP, GSP, and BSP. The encapsulation member 180 can suppress damage to the light-emitting diodes 140 and 150 due to moisture and impact from the outside. The encapsulation member 180 may have a multi-layer structure. For example, the encapsulation member 180 may include a first encapsulation layer 181, a second encapsulation layer 182, and a third encapsulation layer 183 laminated in sequence, but exemplary embodiments of the present disclosure are not limited thereto.

[0135] First encapsulation layer 181, second encapsulation layer 182, and third encapsulation layer 183 may include an insulating material. Second encapsulation layer 182 may include a material different from that of first encapsulation layer 181 and third encapsulation layer 183. For example, first encapsulation layer 181 and third encapsulation layer 183 are inorganic encapsulation layers including an inorganic insulating material, and second encapsulation layer 182 may include an organic encapsulation layer including an organic insulating material. Thus, encapsulation member 180 can effectively suppress damage to light-emitting diodes 140 and 150 of display device 100 caused by external moisture and impact.

[0136] The black matrix BM may be disposed on the encapsulation member 180 . The black matrix BM may be disposed between the plurality of sub-pixels RSP, GSP, and BSP to reduce color mixing of the plurality of sub-pixels RSP, GSP, and BSP.

[0137] The touch insulating layer 117 is disposed on the black matrix BM. The touch insulating layer 117 is disposed between the encapsulation member 180 and the black matrix BM and the touch electrode TE to isolate the touch electrode TE.

[0138] The touch insulating layer 117 may include an insulating material. For example, the touch insulating layer 117 may include an organic insulating material or an inorganic insulating material, but is not limited thereto.

[0139] A plurality of touch electrodes TE may be located on the touch insulating layer 117. The plurality of touch electrodes TE may be disposed above the first light emitting diode 140 and the second light emitting diode 150 in the display area DA. The plurality of touch electrodes TE may be disposed on the touch insulating layer 117 to be spaced apart from each other. The plurality of touch electrodes TE may be configured to sense an external touch input such as a user's finger, a touch pen, or the like.

[0140] refer to Figure 5 and Figure 6 The plurality of touch electrodes TE are disposed to overlap the bank insulating layer 116 and the black matrix BM. Therefore, the plurality of touch electrodes TE may be configured to minimize restriction of the path of light generated by the first and second light emitting diodes 140 and 150.

[0141] For example, the plurality of touch electrodes TE may include a metal material such as titanium (Ti), aluminum (Al), silver (Ag), copper (Cu), and magnesium-silver alloy (Mg:Ag), but is not limited thereto.

[0142] Meanwhile, a touch buffer layer may be further provided between the encapsulation member 180 and the touch electrode TE, but is not limited thereto. In addition, in addition to the touch electrode TE, a touch bridge electrode may be further provided on the encapsulation member 180, but is not limited thereto.

[0143] refer to Figure 5 and Figure 6 , the first optical member 161 and the plurality of second optical members 162 may be located on the encapsulation member 180 and the touch electrode TE of each sub-pixel RSP, GSP, and BSP. The first optical member 161 and the plurality of second optical members 162 may be arranged to cover the edges of the plurality of touch electrodes TE. The first optical member 161 may be arranged to correspond to the first light-emitting diode 140, and the plurality of second optical members 162 may be arranged to correspond to the second light-emitting diode 150. Optical members may be defined as the term lens. That is, the first optical member 161 arranged to correspond to the first light-emitting diode 140 may be referred to as a first lens, and the plurality of second optical members 162 arranged to correspond to the second light-emitting diode 150 may be referred to as a second lens.

[0144] The first optical member 161 may be positioned on the first optical member regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP.

[0145] For example, light generated by the first light emitting diodes 140 of the sub-pixels RSP, GSP, and BSP may be emitted through the first optical members 161 of the corresponding sub-pixels RSP, GSP, and BSP.

[0146] The first optical member 161 may have a shape that does not restrict light in at least one direction. For example, the planar shape of the first optical member 161 located in each sub-pixel RSP, GSP, BSP may have a strip shape extending in the first direction. For example, the first optical member 161 may be a semi-cylindrical lens.

[0147] In this case, the direction of light emitted from the first optical component areas RWE, GWE, and BWE of each sub-pixel RSP, GSP, and BSP may not be limited to the first direction. For example, the content (or image) provided by the first optical component areas RWE, GWE, and BWE of each pixel PX can be shared with people adjacent to the user in the first direction. When content is provided through the first optical component areas RWE, GWE, and BWE, the content is provided within a first viewing angle range that is greater than the second viewing angle range provided by the second optical component areas RNE, GNE, and BNE. This can be referred to as a first mode.

[0148] A plurality of second optical members 162 may be positioned on the second optical member regions RNE, GNE, and BNE of each sub-pixel RSP, GSP, and BSP.

[0149] For example, light generated by the second light emitting diodes 150 of the sub-pixels RSP, GSP, and BSP may be emitted through the plurality of second optical members 162 of the corresponding sub-pixels RSP, GSP, and BSP. At this time, the traveling direction of the light passing through the plurality of second optical members 162 may be limited to the first direction and / or the second direction.

[0150] For example, the planar shape of the plurality of second optical members 162 located in the sub-pixels RSP, GSP, and BSP may be square. That is, the plurality of second optical members 162 may be hemispherical lenses. In this case, the traveling direction of light emitted from the second optical member regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP may be limited to the first direction and the second direction. However, the planar shape of the plurality of second optical members 162 may be circular, but is not limited thereto.

[0151] The content provided by the second optical member areas RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP may not be shared with people around the user. When the content is provided by the second optical member areas RNE, GNE, and BNE, the content is provided in a second viewing angle range that is smaller than the first viewing angle range provided by the first optical member areas RWE, GWE, and BWE, which may be referred to as a second mode.

[0152] The region of each subpixel RSP, GSP, BSP where the first optical member 161 is disposed may be referred to as a first light emitting region RE1, GE1, BE1. For example, the first light emitting region RE1, GE1, and BE1 may be a region where light generated by the first light emitting diode 140 is emitted through the first optical member 161.

[0153] The region of each sub-pixel RSP, GSP, BSP where the plurality of second optical members 162 are disposed may be referred to as a second light emitting region RE2, GE2, BE2. For example, the second light emitting regions RE2, GE2, and BE2 may be regions where light generated by the second light emitting diode 150 is emitted through the plurality of second optical members 162.

[0154] The first light emitting regions RE1, GE1, and BE1 included in the first optical member regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP may have a shape corresponding to the first optical member 161 located on the first optical member regions RWE, GWE, and BWE of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shape of the first light emitting regions RE1, GE1, and BE1 defined in the first optical member regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP may have a stripe shape extending in the first direction.

[0155] The first optical member 161 located on the first optical member regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP may have the same size as the first light emitting regions RE1, GE1, and BE1 included in the first optical member regions RWE, GWE, and BWE of the corresponding sub-pixels RSP, GSP, and BSP. In addition, the first optical member 161 may have a size larger than the first light emitting regions RE1, GE1, and BE1, so that the efficiency of light emitted from the first light emitting regions RE1, GE1, and BE1 of the sub-pixels RSP, GSP, and BSP can be improved.

[0156] The plurality of second light emitting regions RE2, GE2, and BE2 included in the second optical member regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP may have a shape corresponding to the plurality of second optical members 162 located on the second optical member regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP. For example, the planar shapes of the second light emitting regions RE2, GE2, and BE2 included in the second optical member regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP may have a polygonal or circular shape.

[0157] The plurality of second optical members 162 located on the second optical member regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP may have the same size as the second light emitting regions RE2, GE2, and BE2 included in the second optical member regions RNE, GNE, and BNE of the corresponding sub-pixels RSP, GSP, and BSP. In addition, the plurality of second optical members 162 may have a size larger than that of the second light emitting regions RE2, GE2, and BE2, so that the efficiency of light emitted from the second light emitting regions RE2, GE2, and BE2 of the sub-pixels RSP, GSP, and BSP can be improved.

[0158] In an exemplary embodiment, the first optical member area RWE, GWE, BWE of one sub-pixel RSP, GSP, BSP may include one first light emitting area RE1, GE1, BE1. In an exemplary embodiment, the second optical member area RNE, GNE, BNE of one sub-pixel RSP, GSP, BSP may include a plurality of second light emitting areas RE2, GE2, and BE2.

[0159] In an exemplary embodiment, one first optical member 161 may be disposed on the first optical member region RWE, GWE, BWE of one sub-pixel RSP, GSP, BSP, and a plurality of second optical members 162 may be disposed on the second optical member region RNE, GNE, BNE of one sub-pixel RSP, GSP, BSP.

[0160] In an exemplary embodiment, the sizes of the first light-emitting regions RE1, GE1, and BE1 may vary among the individual sub-pixels RSP, GSP, and BSP. For example, the first light-emitting region BE1 of the blue sub-pixel BSP may have a different size from the first light-emitting region GE1 of the green sub-pixel GSP, and may have a different size from the first light-emitting region RE1 of the red sub-pixel RSP. The size of the first light-emitting region BE1 of the blue sub-pixel BSP may be larger than the size of the first light-emitting region GE1 of the green sub-pixel GSP. The size of the first light-emitting region GE1 of the green sub-pixel GSP may be larger than the size of the first light-emitting region RE1 of the red sub-pixel RSP. Therefore, in a display device according to an exemplary embodiment of the present disclosure, the efficiency deviation of the first light-emitting diodes 140 located on the first optical component regions RWE, GWE, and BWE of the sub-pixels RSP, GSP, and BSP may be compensated by the size of the first light-emitting regions RE1, GE1, and BE1 defined in the first optical component regions RWE, GWE, and BWE of each sub-pixel RSP, GSP, and BSP.

[0161] In an exemplary embodiment, the area of ​​each of the second light emitting regions RE2, GE2, and BE2 located in the second optical member regions RNE, GNE, and BNE of the plurality of sub-pixels RSP, GSP, and BSP can be specified as a specific value. For example, the area of ​​each of the second light emitting regions RE2, GE2, and BE2 located in the second optical member regions RNE, GNE, and BNE can be implemented to be the same. The second light emitting regions RE2, GE2, and BE2 included in the second optical member regions RNE, GNE, and BNE of the plurality of sub-pixels RSP, GSP, and BSP can have the same area as the second light emitting regions RE2, GE2, and BE2 included in the second optical member regions RNE, GNE, and BNE of the adjacent sub-pixels RSP, GSP, and BSP.

[0162] In an exemplary embodiment, the number of the plurality of second light-emitting regions RE2, GE2, and BE2 may vary in each sub-pixel RSP, GSP, and BSP. For example, the number of second light-emitting regions BE2 defined in the second optical component region BNE of the blue sub-pixel BSP and the number of second light-emitting regions GE2 defined in the second optical component region GNE of the green sub-pixel GSP may be greater than the number of second light-emitting regions RE2 defined in the second optical component region RNE of the red sub-pixel RSP. In this case, the efficiency deviation of the second light-emitting diodes 150 located on the second optical component regions RNE, GNE, and BNE of the sub-pixels RSP, GSP, and BSP can be compensated by the number of second light-emitting regions RE2, GE2, and BE2 defined in the second optical component regions RNE, GNE, and BNE of each sub-pixel RSP, GSP, and BSP. In addition, the above-mentioned efficiency deviation can be compensated by the protective film 165 provided on the first optical member 161, which will be described below.

[0163] In an exemplary embodiment, the first and second optical members 161 and 162 use materials with high refractive properties to achieve a viewing angle control function and a light-focusing effect for the light emitted from the light-emitting diodes 140 and 150. For example, the first and second optical members 161 and 162 may be formed from a photoacrylate material. For example, the first and second optical members 161 and 162 may include a fluorene-based monomer and an acrylic polymer. Specifically, for example, the first and second optical members 161 and 162 may be formed from a composition including the aforementioned monomers and polymers and a solvent, and the content of the monomers and polymers may be 30 wt% or more and 35 wt% or less relative to 100 wt% of the composition. However, the present disclosure is not limited thereto. For example, the solvent may be selected from organic solvents such as PGMEA or PGME, but is not limited thereto. Furthermore, the composition may include additives such as antioxidants or UV absorbers (e.g., 2-(5-tert-butyl-2-hydroxyphenyl)benzotriazole) to improve reliability.

[0164] In an exemplary embodiment, the interval between adjacent optical members 161 and 162 may be 15 μm or more and 25 μm or less, and the length from the bottom surface to the top surface of each optical member 161 and 162 may be 7 μm or more and 12 μm or less, but the present disclosure is not limited thereto.

[0165] In an exemplary embodiment, a protective film 165 may be provided on the first optical member 161 of the sub-pixels RSP, GSP, and BSP. The protective film 165 may be formed to have a constant thickness along the upper surface of the first optical member 161. That is, the protective film 165 may be provided to cover the entire surface of the first optical member 161.

[0166] As described above, when content is provided through the first optical member areas RWE, GWE, and BWE, the content is provided within a first viewing angle range that is larger than a second viewing angle range provided by the second optical member areas RNE, GNE, and BNE, that is, the content is provided in the first mode. When content is provided through the second optical member areas RNE, GNE, and BNE, the content is provided within a second viewing angle range that is smaller than the first viewing angle range provided by the first optical member areas RWE, GWE, and BWE, that is, the content is provided in the second mode.

[0167] At this time, due to the area difference between the first optical member regions RWE, GWE and BWE and the second optical member regions RNE, GNE and BNE, a brightness difference between the first mode and the second mode occurs. Ideally, a brightness of 40% or higher is required in the first mode, and a brightness of 50% or higher is required in the second mode. However, as shown in FIG. Figure 4 As described above, there is a problem in that the brightness of the first mode is low due to the area difference between the first optical member regions RWE, GWE, and BWE and the second optical member regions RNE, GNE, and BNE.

[0168] In an exemplary embodiment, a protective film 165 is provided on the first optical member 161 to improve the brightness difference between the first and second modes. When the protective film 165 is provided on the first optical member 161, the low brightness of the first mode is improved, thereby reducing the brightness difference between the first and second modes. This provides advantages such as excellent viewing angle control characteristics and superior display quality due to improved brightness.

[0169] In an exemplary embodiment, the refractive index of the protective film 165 may be 1.9 or greater and 2.2 or less. In this case, the first optical member 161 increases light extraction efficiency, thereby improving brightness in the first mode to reduce the brightness difference between the first mode and the second mode, but the present disclosure is not limited thereto.

[0170] In an exemplary embodiment, the thickness of the protective film 165 may be 100 nm or more and 200 nm or less. In this case, the brightness of the first mode is increased to reduce the brightness difference between the first mode and the second mode. When the thickness of the protective film 165 exceeds 200 nm, the brightness of the first mode may be reduced due to light loss.

[0171] In an exemplary embodiment, the protective film 165 may be formed of an inorganic material or an organic material. Specifically, the protective film 165 may include one or more inorganic materials such as silicon nitride film (SiNx) or silicon oxide film (SiOx), or may be formed of an organic material such as parylene.

[0172] In an exemplary embodiment, the protection film 165 may be formed by vacuum deposition of the above-mentioned inorganic material or organic material, but is not limited thereto.

[0173] In this exemplary embodiment, the protective film 165 is shown as being disposed on the first optical member 161, but the present invention is not limited thereto. Depending on the placement structure of the sub-pixels RSP, GSP, and BSP or the design structure of the display device 100, the protective film 165 may be disposed to cover both the first optical member 161 and the second optical member 162. In this case, the protective film 165 protects the first and second optical members 161 and 162 from external moisture or oxygen, thereby achieving improved reliability. Therefore, when improved reliability is required depending on the usage environment, the protective film 165 may be disposed not only on the first optical member 161 but also on the second optical member 162.

[0174] In an exemplary embodiment, an organic layer 170 may be located on the first optical member 161 and the plurality of second optical members 162 of the sub-pixels RSP, GSP, and BSP. The organic layer 170 may include an insulating material. For example, the organic layer 170 may include an organic insulating material. The refractive index of the organic layer 170 may be lower than the refractive index of the first optical member 161 and the refractive index of the second optical member 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 refractive index difference with the organic layer 170, light passing through the first optical member 161 and the second optical member 162 in each sub-pixel RSP, GSP, and BSP may not be reflected toward the substrate 110.

[0175] Figure 7 is a cross-sectional view of a non-display area of ​​a display device according to an exemplary embodiment of the present disclosure.

[0176] refer to Figure 7 Each of the buffer layer 111, the gate insulating layer 112, the interlayer insulating layer 113, and the lower protective layer 114 may extend not only to the display area DA but also to the non-display area NDA. The buffer layer 111, the gate insulating layer 112, the interlayer insulating layer 113, and the lower protective layer 114 may be formed on substantially the entire surface of the substrate 110.

[0177] A barrier 190 may be provided in the non-display area NDA to block the flow of the second encapsulation layer 182, formed of an organic insulating material, among the first, second, and third encapsulation layers 181, 182, and 183 that comprise the encapsulation member 180. The barrier 190 is provided on the substrate 110 as a closed curve that encloses the display area DA in the non-display area NDA. Specifically, the barrier 190 may be provided on the lower protective layer 114, which is formed to extend into the non-display area NDA. Furthermore, the first, second, and third encapsulation layers 181, 182, and 183 extend not only into the display area DA but also into the non-display area NDA. The first and third encapsulation layers 181, 183 are provided on the barrier 190, and the flow of the second encapsulation layer 182 can be blocked by the barrier 190. The barrier 190 needs to be formed to a predetermined height or higher to block the flow of the second encapsulation layer 182. To this end, the barrier 190 may be formed from at least one or more layers formed of organic materials. For example, the dam 190 may include a lower layer formed of the same material as the overcoat layer 115 and an upper layer formed of the same material as the bank insulating layer 116, but is not limited thereto. Although two dams 190 are shown in the drawings, one or three or more dams 190 may be provided.

[0178] The touch insulation layer 117 may be provided to extend not only to the display area DA but also to the non-display area NDA. The touch insulation layer 117 may be provided on the barrier 190.

[0179] In the non-display area NDA, a plurality of touch wiring lines TL may be provided that electrically connect the plurality of touch electrodes TE and touch pads (not shown). The plurality of touch wiring lines TL may be provided on the touch insulation layer 117 in the same manner as the plurality of touch electrodes TE. The touch wiring lines TL may be provided to extend from the non-display area NDA adjacent to the display area DA to the outer edge of the non-display area NDA. Therefore, the touch wiring lines TL may be connected to touch pads (not shown) located at the outer edge of the non-display area NDA. The touch wiring lines TL electrically connect each of the plurality of touch electrodes TE provided in the display area DA to a touch pad (not shown). One end of the touch pad (not shown) is connected to the touch wiring line TL, and the other end is connected to an external circuit, such as a touch driver, to receive a touch drive signal from the external circuit or transmit a touch sensing signal to the external circuit. Therefore, the touch drive signal or the touch sensing signal can be transmitted to the touch electrodes TE via the touch wiring lines TL.

[0180] In an exemplary embodiment, multiple dummy optical members DLP are provided on the touch wiring TL. These dummy optical members DLP are located in the non-display area NDA to increase the inflow path for oxygen or moisture, thereby delaying the penetration of oxygen or moisture into the display area DA. This can improve yellowing caused by degradation due to moisture or oxygen.

[0181] Multiple dummy optical members DLP are arranged at regular intervals along the touch wiring TL. These dummy optical members DLP can be formed from the same material and process as the first and second optical members 161 and 162 provided in the display area DA. These dummy optical members DLP can be, but are not limited to, semi-cylindrical or hemispherical lenses. When these dummy optical members DLP are arranged on the inclined touch insulation layer 117 as described above, the fluidity of the highly fluid organic layer 170 can be controlled.

[0182] Although the dummy optical member DLP and the first and second optical members 161 and 162 are shown as having different sizes in the drawings, the present disclosure is not limited thereto. The dummy optical member DLP and the first and second optical members 161 and 162 may have the same size.

[0183] As described above, the dummy optical member DLP may include a fluorene-based monomer and an acrylic polymer. The fluorene-based monomer may undergo carbonylation, where some of its atomic groups are replaced with carbonyl groups due to oxygen or moisture. When carbonylation occurs as described above, yellowing occurs in the dummy optical member DLP due to material degeneration.

[0184] Therefore, in an exemplary embodiment, the sub-protective film 165' is provided on the dummy optical component DLP. The sub-protective film 165' may be provided to cover the dummy optical component DLP provided on the touch wiring TL. Specifically, the sub-protective film 165' may be provided to cover the touch wiring TL and the dummy optical component DLP. The sub-protective film 165' may be provided with a constant thickness along the surface of the touch wiring TL on which the dummy optical component DLP is provided. As described above, the sub-protective film 165' is provided on the dummy optical component DLP to suppress the modification of the dummy optical component DLP due to moisture or oxygen penetrating from the outside. Therefore, the yellowing phenomenon caused by the modification of the dummy optical component DLP in the outer edge portion of the display device 100 can be suppressed.

[0185] In certain exemplary embodiments, the sub-protective film 165' may be formed of an inorganic material or an organic material. Specifically, the sub-protective film 165' may include one or more inorganic materials such as a silicon nitride film (SiNx) or a silicon oxide film (SiOx), or may be formed of an organic material such as parylene. These materials can suppress the modification of the dummy optical member DLP caused by external oxygen or moisture penetration by improving moisture resistance and oxygen resistance without degrading optical properties such as transmittance or haze, and can further improve yellowing defects.

[0186] In an exemplary embodiment, the thickness of the sub-protective film 165' may be 100 nm or more and 200 nm or less. In this case, degradation of the dummy optical member DLP due to oxygen or moisture may be suppressed without deteriorating optical properties such as transmittance or haze.

[0187] In an exemplary embodiment, the sub-protecting film 165 ′ may be formed by vacuum deposition of the above-described inorganic material or organic material, but is not limited thereto.

[0188] The sub-protective film 165 ′ may be formed of the same material through the same process as the protective film 165 disposed on the first optical member 161 in the display area DA, but is not limited thereto.

[0189] The partition 195 is provided along the outer periphery of the barrier 190 in the non-display area NDA. The partition 195 may be provided on the substrate 110 as a closed curve surrounding the barrier 190. The partition 195 may be provided between the touch pad (not shown) provided at the outer edge of the non-display area NDA and the barrier 190. For example, the partition 195 may be provided on the touch wiring TL.

[0190] For example, the partitions 195 may be formed of an organic material. The height of the partitions 195 may be higher than that of the barrier 190 to prevent the organic layer 170 from flowing to the outer edge of the non-display area NDA where the touch pad is located. Although three partitions 195 are shown in the drawings, one or two partitions 195 may also be provided.

[0191] The organic layer 170 is provided to extend not only to the display area DA but also to the non-display area NDA. In the non-display area NDA, the organic layer 170 may be provided to cover the touch wiring TL and the dummy optical member DLP. The organic layer 170 may be provided above the barrier 190, and an end of the organic layer 170 may be provided between the partition 195 and the barrier 190.

[0192] In a display device, all first optical members and multiple second optical members can be arranged in a sub-pixel above the light-emitting diode, black matrix, and touch electrode to selectively provide different viewing modes to the user. Brightness differences arise from the area differences between the first and second optical member regions of the multiple sub-pixels.

[0193] The display device 100 according to an exemplary embodiment of the present disclosure includes a protective film 165 over the first optical member 161, which has relatively low brightness due to an area difference. Consequently, the brightness of the first optical member regions RWE, GWE, and BWE of the plurality of sub-pixels RSP, GSP, and BSP is improved, thereby reducing the brightness difference caused by the area difference between the first optical member regions RWE, GWE, and BWE and the second optical member regions RNE, GNE, and BNE. Furthermore, in the display device 100 according to an exemplary embodiment of the present disclosure, a sub-protective film 165' is provided over the dummy optical member DLP in the non-display area NDA. The sub-protective film 165' protects the dummy optical member DLP from moisture or oxygen penetrating from the outside, thereby suppressing modification of the dummy optical member DLP due to moisture or oxygen, thereby reducing yellowing defects generated at the outer edges.

[0194] Figure 8 is a cross-sectional view of a display device according to another exemplary embodiment of the present disclosure.

[0195] refer to Figure 8 A display device 200 according to another exemplary embodiment of the present disclosure may include a substrate 110, a buffer layer 111, a gate insulating layer 112, an interlayer insulating layer 113, a lower protective layer 114, an overcoat layer 115, a first transistor T1, a second transistor T2, a first light emitting diode 140, a second light emitting diode 150, an encapsulation member 180, a touch insulating layer 117, a touch electrode TE, a first optical member 161, a second optical member 162, a protective film 165, a dummy optical member DLP, a first sub-protective film 265'-1, a second sub-protective film 265'-2, an organic layer 170, a touch wiring TL, a blocker 190, and a partition 195. The display device 200 is similar to the one already described in reference except that the sub-protective films include the first sub-protective film and the second sub-protective film. Figures 1 to 7 The display apparatus 100 described is substantially the same, and thus descriptions of duplicate components will be omitted.

[0196] The display device 200 includes a first sub-protective film 265'-1 and a second sub-protective film 265'-2 disposed in the non-display area NDA. The first sub-protective film 265'-1 is disposed on the touch wiring TL. The first sub-protective film 265'-1 may be disposed to extend from the non-display area NDA adjacent to the display area DA to the outer edge of the non-display area NDA, but is not limited thereto.

[0197] Therefore, in an exemplary embodiment, a plurality of dummy optical members DLP are disposed on the first subprotecting film 265 ′- 1 and may be spaced at constant intervals from the non-display area NDA adjacent to the display area DA to an outer edge of the non-display area NDA.

[0198] The second sub-protective film 265'-2 is disposed on the dummy optical member DLP. The second sub-protective film 265'-2 contacts the top surface of each of the plurality of dummy optical members DLP and has a shape corresponding to the top surface of each of the plurality of dummy optical members DLP. The second sub-protective film 265'-2 can be formed with a constant thickness along the top surface of each of the plurality of dummy optical members DLP. Therefore, each of the plurality of dummy optical members DLP can be formed to be surrounded by the first sub-protective film 265'-1 and the second sub-protective film 265'-2.

[0199] The second sub-protective film 265 ′- 2 may be formed of the same material through the same process as the protective film 165 disposed on the first optical member 161 in the display area DA, but is not limited thereto.

[0200] As described above, an optical member such as a dummy optical member may include a fluorene monomer, and some of the atomic groups may be substituted with carbonyl groups due to oxygen or moisture, thereby causing modification. Yellowing defects are caused by carbonylation of the dummy optical member.

[0201] In an exemplary embodiment, each of the plurality of dummy optical members DLP is formed to be surrounded by the first sub-protective film 265'-1 and the second sub-protective film 265'-2 to protect the dummy optical member DLP from moisture or oxygen flowing in from the outside. Therefore, degradation of the dummy optical member DLP due to moisture and oxygen is suppressed, thereby further suppressing yellowing defects.

[0202] The first and second sub-protective films 265'-1 and 265'-2 can be formed from inorganic or organic materials. Specifically, the first and second sub-protective films 265'-1 and 265'-2 can include one or more inorganic materials such as silicon nitride (SiNx) or silicon oxide (SiOx), or can be formed from organic materials such as parylene. These materials suppress the modification of the dummy optical member DLP caused by external oxygen or moisture penetration by improving moisture resistance and oxygen resistance without degrading optical properties such as transmittance or haze, further improving yellowing defects.

[0203] In an exemplary embodiment, the thickness of each of the first sub-protective film 265'-1 and the second sub-protective film 265'-2 may be 100 nm or more and 200 nm or less. In this case, degradation of the dummy optical member DLP due to oxygen or moisture can be suppressed without deteriorating optical properties such as transmittance or haze. In an exemplary embodiment, the first sub-protective film 265'-1 and the second sub-protective film 265'-2 may be formed by vacuum deposition of the above-mentioned inorganic material or organic material, but are not limited thereto.

[0204] In this exemplary embodiment, the first sub-protective film 265'-1 is shown as being disposed in the non-display area NDA, but the present invention is not limited thereto. If desired, the first sub-protective film 265'-1 can be extended to the display area DA to be disposed over the touch insulation layer 117 and the touch electrode TE. In this case, each of the first optical member 161 and the second optical member 162 can be disposed on the first sub-protective film 265'-1. When the first sub-protective film 265'-1 is disposed below the first optical member 161 and the second optical member 162 as described above, the first optical member 161 and the second optical member 162 are protected from moisture or oxygen penetrating from the outside, thereby further improving reliability.

[0205] Figure 9 is a cross-sectional view of a display device according to still another exemplary embodiment of the present disclosure.

[0206] refer to Figure 9A display device 300 according to another exemplary embodiment of the present disclosure may include a substrate 110, a buffer layer 111, a gate insulating layer 112, an interlayer insulating layer 113, a lower protective layer 114, an overcoat layer 115, a first transistor T1, a second transistor T2, a first light emitting diode 140, a second light emitting diode 150, an encapsulation member 180, a touch insulating layer 117, a touch electrode TE, a first optical member 161, a second optical member 162, a protective film 165, a dummy optical member DLP, a first sub-protective film 265'-1, a second sub-protective film 365'-2, an organic layer 170, a touch wiring TL, a blocker 190, and a partition 195. Except for the position of the second sub-protective film, the display device 300 is the same as that already described with reference to FIG. Figure 8 The display apparatus 200 described is substantially the same, and thus descriptions of duplicate components will be omitted.

[0207] The first sub-protective film 265'-1 is disposed on the touch wiring TL. The first sub-protective film 265'-1 may be disposed to extend from the non-display area NDA adjacent to the display area DA to the outer edge of the non-display area NDA, but is not limited thereto. Therefore, in this exemplary embodiment, a plurality of dummy optical members DLP are disposed on the first sub-protective film 265'-1.

[0208] In the non-display area NDA, the organic layer 170 may be disposed to cover the plurality of dummy optical members DLP disposed on the first subprotecting film 265 ′- 1 . The organic layer 170 is disposed to contact the first subprotecting film 265 ′- 1 and the plurality of dummy optical members DLP.

[0209] The second subprotective film 365'-2 is disposed on the organic layer 170. The second subprotective film 365'-2 may be disposed as a layer on the organic layer 170 above the display area DA and the non-display area NDA. At least a portion of the second subprotective film 365'-2 may be disposed on the partition 195, but the present disclosure is not limited thereto. If desired, the second subprotective film 365'-2 may alternatively be disposed to correspond to the non-display area NDA.

[0210] In the exemplary embodiment, in the display device 300, the first sub-protective film 265'-1 is disposed below the dummy optical element DLP, the organic layer 170 is disposed to cover the dummy optical element DLP, and the second sub-protective film 365'-2 is disposed on the organic layer 170. Therefore, the dummy optical element DLP can be protected from moisture or oxygen entering from the outside. Consequently, degradation of the dummy optical element DLP due to moisture and oxygen is suppressed, thereby further suppressing yellowing defects.

[0211] In this exemplary embodiment, the first sub-protective film 265'-1 is shown as being disposed only in the non-display area NDA, but the present invention is not limited thereto. If desired, the first sub-protective film 265'-1 can be extended to the display area DA to be disposed over the touch insulation layer 117 and the touch electrode TE. In this case, each of the first optical member 161 and the second optical member 162 can be disposed on the first sub-protective film 265'-1. When the first sub-protective film 265'-1 is disposed below the first optical member 161 and the second optical member 162 as described above, the first optical member 161 and the second optical member 162 are protected from moisture or oxygen penetrating from the outside, thereby further improving reliability.

[0212] Hereinafter, the effects of the present disclosure described above will be described with reference to exemplary embodiments. However, the following exemplary embodiments are set forth to illustrate the present disclosure, but the scope of the present disclosure is not limited thereto.

[0213] [Experimental Example 1]

[0214] Relative brightness at each viewing angle was simulated on a sample. In this sample, a light-emitting unit comprising a first LED and a second LED was provided with a first optical component corresponding to the first LED and providing a first viewing angle, and a second optical component corresponding to the second LED and providing a second viewing angle lower than the first. In this case, the sample of the exemplary embodiment had a SiNx protective film applied to the first optical component, while the sample of the comparative example had no protective film applied. Relative brightness is the relative brightness of each region relative to the central brightness. The results are shown in Table 1 below.

[0215] [Table 1]

[0216]

[0217] Referring to Table 1, in the exemplary embodiment and the comparative embodiment, it was confirmed that in the second mode as the privacy mode, the brightness was the same, but in the first mode as the sharing mode, the brightness of the exemplary embodiment was higher than that of the comparative embodiment. It should be understood that in the exemplary embodiment, the SiNx protective film is located on the first optical member, so that the brightness is improved. It was further confirmed that the brightness values ​​at the 30° cutoff angle of the exemplary embodiment and the comparative embodiment are equal, so it can be understood that the viewing angle control characteristics do not change depending on whether the protective film is provided. Therefore, it should be understood that when the protective film is provided as Figure 4 When provided on the first optical member as shown, the brightness difference caused by the area difference between the first optical member region and the second optical member region can be improved while maintaining the viewing angle control property.

[0218] [Experimental Example 2]

[0219] The moisture permeability resistance and yellowing degree of each unit film having different laminate structures were evaluated. In Comparative Example 2, an optical component was laminated on a substrate; in Example 2-1, an optical component was laminated on a substrate, and a protective film was laminated to cover the optical component. In the unit film of Example 2-2, a first protective film was laminated on a substrate, an optical component was placed on the first protective film, and a second protective film was laminated to cover the optical component. The yellowing degree was measured after the unit film was attached to a 4500 nit panel and then stored at 85°C for 336 hours. The results are shown in Table 2.

[0220] [Table 2]

[0221]

[0222] Referring to Table 2, in Comparative Example 2 in which the optical member was provided on the substrate, it was confirmed that the permeability was high, resulting in susceptibility to moisture permeation, thereby obtaining the highest yellowing degree due to deterioration of the optical member.

[0223] In contrast, in the case of Exemplary Embodiment 2-1 in which the protective film was laminated on the optical member, it was confirmed that the permeability was significantly reduced, resulting in a significantly reduced degree of yellowing, compared to Comparative Example 2. Furthermore, in the case of Exemplary Embodiment 2-2 in which the protective films were formed on the upper and lower portions of the optical member, respectively, it was confirmed that permeability and yellowing lower than those of Exemplary Embodiment 2-1 were achieved.

[0224] Therefore, when the protective film is laminated on the optical member, it is understood that the moisture permeability resistance is significantly improved, thereby significantly reducing the yellowing degree. When the protective films are respectively provided on the upper and lower portions of the optical member, it is understood that both the permeability and the yellowing degree are further reduced, thereby providing a display device with improved reliability in high temperature and high humidity environments.

[0225] [Experimental Example 3]

[0226] The yellowing degree of the panel was evaluated based on the presence or absence of a protective film and a laminated structure of the protective film in the non-display area. Figure 7 The panel shown has a structure in which a protective film is laminated on top of a dummy optical member. Figure 8 The panel shown has a structure in which a protective film is laminated above and below the dummy optical member. Comparative Example 3 is a panel having a structure in which the protective film laminated above the dummy optical member in Example 3-1 is omitted. Under the driving condition of 375 nits, the panel was stored at 85°C for 1000 hours, while the yellowing degree was measured every 250 hours. The results are shown in FIG. Figure 10 shown.

[0227] Figure 10is a graph showing the results of yellowing evaluation of the panels according to Exemplary Embodiments 3-1 and 3-2 and Comparative Example 3. Figure 10 , in Exemplary Embodiment 3-2 in which protective films were laminated above and below the dummy optical member, no degradation occurred under high temperature conditions for 1000 hours, thus confirming that no yellowing defect occurred.

[0228] In Exemplary Embodiment 3-1 in which the protective film was laminated only over the dummy optical member, an increase in the degree of yellowing was confirmed after 750 hours, but the degree of yellowing was not significant.

[0229] In contrast, in the panel of Comparative Example 3 in which the protective film was not provided above or below the dummy optical member, it was confirmed that the yellowing degree increased rapidly from the start of the experiment, and thus the reliability was lower than that of the panels of Exemplary Embodiments 3-1 and 3-2.

[0230] Therefore, it should be understood that when the protective film is provided on the top surface of the dummy optical member, and further, when provided on the top and bottom surfaces of the dummy optical member, the moisture permeability of the display panel is improved, thereby providing a display device with excellent reliability.

[0231] Exemplary embodiments of the present disclosure can be described as follows:

[0232] According to one aspect of the present disclosure, a display device is provided. The display device includes: a substrate including a display area and a non-display area, wherein a plurality of pixels are arranged in the display area, each pixel including a plurality of sub-pixels representing different colors, and the non-display area surrounds the display area; a first light-emitting diode and a second light-emitting diode are arranged in each of the plurality of sub-pixels; a first optical member arranged to overlap with the light-emitting area of ​​the first light-emitting diode and provide a viewing angle having a first value; a plurality of second optical members arranged to overlap with the light-emitting area of ​​the second light-emitting diode and provide a viewing angle having a second value lower than the first value; and a protective film provided on the first optical member.

[0233] The first and second LEDs may include an anode, a light-emitting layer disposed on the anode, and a cathode disposed on the light-emitting layer, and the display device may further include a bank insulating layer covering edges of the anodes of the first and second LEDs.

[0234] The display device may further include an encapsulation member disposed on the first and second light-emitting diodes, a black matrix disposed on the encapsulation member, and a touch insulation layer disposed on the black matrix, wherein the black matrix may be disposed to overlap the bank insulation layer.

[0235] The display device may further include a plurality of touch electrodes above the black matrix, the plurality of touch electrodes being arranged to overlap the bank insulating layer and the black matrix, wherein the first optical member and the second optical member may be arranged to cover edges of the touch electrodes.

[0236] The protective film may be provided to have a constant thickness along an upper surface of the first optical member.

[0237] The display device may further include at least one barrier disposed in the non-display area, wherein the encapsulation member may include a first inorganic encapsulation layer, an organic encapsulation layer on the first inorganic encapsulation layer, and a second inorganic encapsulation layer on the organic encapsulation layer, and the first inorganic encapsulation layer and the second inorganic encapsulation layer may be disposed on the barrier.

[0238] The display device may further include at least one partition disposed in the non-display area and disposed at an outer edge of the barrier.

[0239] The display device may further include a touch wiring provided on the same layer as the plurality of touch electrodes, the touch wiring extending from an area adjacent to the display area to an outer edge of the non-display area, wherein the partition may be provided on the touch wiring.

[0240] The display device may further include at least one dummy optical member provided on the touch wiring.

[0241] The display device may further include an organic layer provided to cover the first optical member, the second optical member, and the dummy optical member.

[0242] The display device may further include a sub-protective film disposed in at least one of an upper portion and a lower portion of the dummy optical member.

[0243] The sub-protective film may be provided to cover the dummy optical member and the touch wiring.

[0244] The sub-protecting film may include a first sub-protecting film disposed on a top surface of the touch wiring and a second sub-protecting film disposed to cover a top surface of the dummy optical member, and the dummy optical member may be disposed on the first sub-protecting film.

[0245] The sub-protecting film may include a first sub-protecting film disposed on a top surface of the touch wiring and a second sub-protecting film disposed to cover a top surface of the organic layer, and the dummy optical member may be disposed on the first sub-protecting film.

[0246] The refractive index of the protective film may be 1.9 or more and 2.2 or less, and the thickness of the protective film may be 100 nm or more and 200 nm or less.

[0247] The protection film may include one or more of a silicon nitride film (SiNx), a silicon oxide film (SiOx), and parylene.

[0248] The sub-protection film may include one or more of a silicon nitride film (SiNx), a silicon oxide film (SiOx), and parylene.

[0249] The thickness of the sub-protective film may be 100 nm or more and 200 nm or less.

[0250] Although the exemplary embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the present disclosure is not limited thereto and can be implemented in many different forms without departing from the technical concepts 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 concepts of the present disclosure. The scope of the technical concepts of the present disclosure is not limited thereto. Therefore, it should be understood that the above exemplary embodiments are illustrative in all aspects and do not limit the present disclosure. The scope of protection of the present disclosure should be interpreted based on the appended claims, and all technical concepts within their equivalent scope should be interpreted as falling within the scope of the present disclosure.

Claims

1. A display device comprising: a substrate comprising a display area and a non-display area, wherein a plurality of pixels are provided in the display area, each pixel comprising a plurality of sub-pixels representing different colors, and the non-display area surrounds the display area; a first light emitting diode and a second light emitting diode disposed in each of the plurality of sub-pixels; a first optical member disposed to overlap with a light emitting area of ​​the first light emitting diode and to provide a viewing angle having a first value; a plurality of second optical members disposed to overlap with a light emitting area of ​​the second light emitting diode and to provide a viewing angle having a second value lower than the first value; as well as A protective film is provided on the first optical member.

2. The display device according to claim 1, wherein The first light emitting diode and the second light emitting diode include an anode, a light emitting layer disposed on the anode, and a cathode disposed on the light emitting layer. The display device further includes a bank insulating layer covering edges of the anodes of the first and second light emitting diodes.

3. The display device according to claim 2, further comprising: a packaging component disposed on the first light-emitting diode and the second light-emitting diode; a black matrix disposed on the packaging member; as well as A touch insulating layer is provided on the black matrix, The black matrix is ​​arranged to overlap with the bank insulating layer.

4. The display device according to claim 3, further comprising: A plurality of touch electrodes are disposed above the black matrix, wherein the plurality of touch electrodes are arranged to overlap with the bank insulating layer and the black matrix. The first optical member and the second optical member are arranged to cover edges of the touch electrode.

5. The display device according to claim 1, wherein The protective film is provided to have a constant thickness along the upper surface of the first optical member.

6. The display device according to claim 4, further comprising: at least one obstruction disposed in the non-display area, The encapsulation member includes a first inorganic encapsulation layer, an organic encapsulation layer on the first inorganic encapsulation layer, and a second inorganic encapsulation layer on the organic encapsulation layer, and the first inorganic encapsulation layer and the second inorganic encapsulation layer are disposed on the barrier.

7. The display device according to claim 6, further comprising: At least one partition is disposed in the non-display area and disposed at an outer edge of the barrier.

8. The display device according to claim 7, further comprising: a touch wiring provided on the same layer as the plurality of touch electrodes, the touch wiring extending from an area adjacent to the display area to an outer edge of the non-display area; Wherein, the partition is arranged on the touch wiring.

9. The display device according to claim 8, further comprising: At least one dummy optical member is provided on the touch wiring.

10. The display device according to claim 9, further comprising: An organic layer is provided to cover the first optical member, the second optical member, and the dummy optical member.

11. The display device according to claim 10, further comprising: A sub-protective film is provided in at least one of an upper portion and a lower portion of the dummy optical member.

12. The display device according to claim 11, wherein The sub-protective film is provided to cover the dummy optical member and the touch wiring.

13. The display device according to claim 11, wherein The sub-protective film includes a first sub-protective film disposed on a top surface of the touch wiring and a second sub-protective film disposed to cover a top surface of the dummy optical member, the dummy optical member being disposed on the first sub-protective film.

14. The display device according to claim 11, wherein The sub-protecting film includes a first sub-protecting film disposed on a top surface of the touch wiring and a second sub-protecting film disposed to cover a top surface of the organic layer, and the dummy optical member is disposed on the first sub-protecting film.

15. The display device according to claim 1, wherein The refractive index of the protective film is 1.9 or more and 2.2 or less, and the thickness of the protective film is 100 nm or more and 200 nm or less.

16. The display device according to claim 1, wherein The protective film includes one or more of a silicon nitride film (SiNx), a silicon oxide film (SiOx), and parylene.

17. The display device according to claim 11, wherein The sub-protection film includes one or more of a silicon nitride film (SiNx), a silicon oxide film (SiOx), and parylene.

18. The display device according to claim 11, wherein The thickness of the sub-protective film is 100 nm or more and 200 nm or less.

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