Electronic device
By introducing a brightness control layer into the electronic device, adjusting the brightness of light to reduce color deviation at the viewing angle, the problem of large display color deviation in the prior art is solved, and the display quality is significantly improved.
Patent Information
- Application Number
- CN202411104558.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-21
- Filing Date
- 2024-08-13
- Publication Date
- 2025-02-21
AI Technical Summary
There are significant deviations in the display of colors at different viewing angles, affecting the display quality.
An electronic device design is adopted that includes a brightness control layer that adjusts the brightness of light by providing parts with different transmittances in the display layer or optical layer to reduce color deviations at the viewing angle.
The color deviation according to the viewing angle is effectively reduced, and the display quality of the electronic device is improved, especially in terms of white angle difference (WAD) characteristics.
Smart Images

Figure CN119497516A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to and all benefits arising from Korean Patent Application No. 10-2023-0109383, filed on August 21, 2023, the contents of which are incorporated herein by reference in their entirety. Technical Field
[0003] Embodiments of the present disclosure described herein relate to electronic devices with improved display quality. Background Art
[0004] Multimedia electronic devices such as televisions ("TV"), mobile phones, tablet computers, navigation systems, and game consoles include electronic devices for displaying images. The electronic devices may include organic light emitting electronic devices ("OLED"). OLEDs include light emitting elements, and the light emitting elements may generate light through the recombination of electrons and holes. OLEDs have a fast response speed and are driven with low power consumption. Summary of the invention
[0005] Embodiments of the present disclosure provide an electronic device having improved display quality by reducing color deviation according to viewing angles.
[0006] According to an embodiment, the electronic device includes: a display layer including a plurality of light-emitting elements in which a plurality of light-emitting areas are defined; and an optical layer arranged on the display layer, wherein the optical layer includes: a light-shielding layer in which a plurality of openings corresponding to the plurality of light-emitting areas are defined; and a plurality of color filters arranged to correspond to the plurality of openings, the display layer or the optical layer also includes: a brightness control layer in which a first light-emitting area among the plurality of light-emitting areas and a first opening among the plurality of openings overlap in a plan view, and the brightness control layer includes a first edge and a second edge surrounding the first edge, the first edge overlaps with the first light-emitting area in a plan view, and the second edge overlaps with the light-shielding layer in a plan view.
[0007] The transmittance of the brightness control layer may be greater than the transmittance of the light shielding layer and less than 100 percent.
[0008] The brightness control layer may include a first portion having a first transmittance and a second portion having a second transmittance lower than the first transmittance.
[0009] The first portion may be adjacent to the first edge and the second portion may be adjacent to the second edge.
[0010] The brightness control layer may overlap with a side wall of the light shielding layer defining the first opening in a plan view.
[0011] A first portion of the brightness control layer may be covered by the light shielding layer, and a second portion of the brightness control layer may be covered by a first color filter among the plurality of color filters.
[0012] The maximum thickness of the brightness control layer may be smaller than the maximum thickness of the light shielding layer.
[0013] The display layer may further include: a base layer; a circuit layer disposed on the base layer; an element layer disposed on the circuit layer and including a plurality of light emitting elements; and an encapsulation layer disposed on the element layer, and the brightness control layer may be disposed inside the display layer or on the encapsulation layer.
[0014] Each of the multiple light-emitting elements may include a first electrode, a light-emitting layer arranged on the first electrode, and a second electrode arranged on the light-emitting layer. The element layer may also include a pixel defining film, a pixel defining opening overlapping with a portion of the first electrode in a plan view is defined in the pixel defining film, and in the plan view, the size of the pixel defining opening may be larger than the size of the area surrounded by the first edge of the brightness control layer.
[0015] The plurality of light-emitting elements may include a first light-emitting element in which a first light-emitting area is defined, a second light-emitting element in which a second light-emitting area is defined, and a third light-emitting element in which a third light-emitting area is defined, the plurality of openings may include a first opening overlapping with the first light-emitting area, a second opening overlapping with the second light-emitting area, and a third opening overlapping with the third light-emitting area, and the first light-emitting area may emit red light, the second light-emitting area may emit green light, and the third light-emitting area may emit blue light.
[0016] The shape of each of the plurality of openings may be circular in plan view.
[0017] The shape of the brightness control layer may be a ring shape in a plan view.
[0018] According to an embodiment, the electronic device includes: a base layer; a circuit layer disposed on the base layer; an element layer disposed on the circuit layer and including a light-emitting element in which a light-emitting area is defined; an encapsulation layer disposed on the element layer; a shading layer disposed on the encapsulation layer and in which an opening corresponding to the light-emitting area is defined; a color filter disposed on the shading layer and covering the opening; and a brightness control layer disposed between the light-emitting element and the opening, wherein the transmittance of the brightness control layer is higher than the transmittance of the shading layer.
[0019] In a plan view, the brightness control layer may overlap a side wall of the light shielding layer defining the opening and have a ring shape.
[0020] The brightness control layer may be disposed between the light shielding layer and the encapsulation layer, a first portion of the brightness control layer may be covered by the light shielding layer, and a second portion of the brightness control layer may be covered by the color filter.
[0021] The maximum thickness of the brightness control layer may be smaller than the maximum thickness of the light shielding layer.
[0022] The brightness control layer may be spaced apart from the light shielding layer.
[0023] The brightness control layer may include a first portion having a first transmittance and a second portion having a second transmittance lower than the first transmittance.
[0024] The brightness control layer may include a first edge and a second edge surrounding the first edge, and in a plan view, the first edge may overlap the light emitting region, and the second edge may overlap the light shielding layer.
[0025] The light-emitting element may include a first electrode, a light-emitting layer arranged on the first electrode, and a second electrode arranged on the light-emitting layer. The element layer may also include a pixel defining film, a pixel defining opening overlapping with a portion of the first electrode in a plan view is defined in the pixel defining film, and in the plan view, the size of the pixel defining opening may be larger than the size of an area surrounded by the first edge of the brightness control layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The above and other aspects and features of the present disclosure will become apparent by describing in detail embodiments of the present disclosure with reference to the attached drawings.
[0027] Figure 1 is a perspective view of an electronic device according to an embodiment of the present disclosure.
[0028] Figure 2 is a perspective view of an electronic device according to an embodiment of the present disclosure.
[0029] Figure 3 is a cross-sectional view of an electronic device according to an embodiment of the present disclosure.
[0030] Figure 4 is an enlarged plan view showing a partial area of a display layer according to an embodiment of the present disclosure.
[0031] Figure 5 is a cross-sectional view showing a portion of an electronic device according to an embodiment of the present disclosure.
[0032] Figure 6 is a cross-sectional view showing a portion of an electronic device according to an embodiment of the present disclosure.
[0033] Figure 7 is a cross-sectional view showing a portion of an electronic device according to an embodiment of the present disclosure.
[0034] Figure 8 is a cross-sectional view showing a portion of an electronic device according to an embodiment of the present disclosure.
[0035] Fig. 9 is a cross-sectional view showing a portion of an electronic device according to an embodiment of the present disclosure.
[0036] Fig.10 is a plan view showing some components of an electronic device according to an embodiment of the present disclosure.
[0037] Fig.11A is a graph depicting color coordinates according to viewing angles according to a comparative example of the present disclosure.
[0038] Fig. 11B is a graph depicting color coordinates according to viewing angles according to an embodiment of the present disclosure.
[0039] Fig. 11C is a graph depicting color coordinates according to viewing angles according to a comparative example of the present disclosure. DETAILED DESCRIPTION
[0040] In this specification, the statement that a first component (or a first region, a first layer, a first part, a first portion, etc.) is "on", "connected with" or "coupled to" a second component means that the first component is directly on, directly connected with or directly coupled to the second component, or means that a third component is interposed therebetween.
[0041] The same reference numerals represent the same components. In addition, in the drawings, in order to effectively describe the technical content, the thickness, ratio and size of the components are exaggerated. The expression "and / or" includes one or more combinations that the relevant components can define. Throughout the disclosure, the expression "at least one of a, b and c" means only a, only b, only c, both a and b, both a and c, both b and c, all of a, b and c, or variations thereof.
[0042] Although the terms "first", "second", etc. can be used to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another component. For example, without departing from the scope of the present disclosure, a first component can be referred to as a second component, and similarly, a second component can also be referred to as a first component. Singular expressions include plural expressions unless otherwise clearly indicated in the context.
[0043] In addition, the terms "under", "below", "on", "above" and the like are used to describe the mutual relationship of components shown in the drawings. Conceptually relative terms are described based on the directions shown in the drawings.
[0044] It will be understood that the terms “include,” “comprise,” “have,” etc. specify the presence of features, quantities, steps, operations, elements or components, or a combination thereof, described in the specification, and do not preclude the possibility of the presence or addition of one or more other features, quantities, steps, operations, elements or components, or a combination thereof.
[0045] The term "unit" means a software component or a hardware component that performs a specific function. A hardware component may include, for example, a field programmable gate array ("FPGA") or an application specific integrated circuit ("ASIC"). A software component may refer to executable code in an addressable storage medium and / or data used by the executable code. Thus, a software component may be, for example, an object-oriented software component, a class component, and a task component, and may include a process, a function, a property, a procedure, a subroutine, a program code segment, a driver, firmware, microcode, a circuit, data, a database, a data structure, a table, an array, or a variable.
[0046] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meaning as commonly understood by those skilled in the art in the field to which the present disclosure belongs. In addition, terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the meaning in the context of the relevant technology, and unless clearly defined herein, should not be interpreted as an overly idealized or overly formal meaning.
[0047] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.
[0048] Figure 1 is a perspective view of an electronic device 1000 according to an embodiment of the present disclosure.
[0049] refer to Figure 1 , the electronic device 1000 may be a device activated according to an electrical signal. For example, the electronic device 1000 may be a mobile phone, a portable mobile phone, a laptop computer, a television, a tablet computer, a vehicle navigation system, a game console, or a wearable device, but the present disclosure is not limited thereto. A wearable device, which is a device worn on a user's body, may include a head-mounted display ("HMD") that implements extended reality ("XR"). Figure 1 It is exemplarily shown that the electronic device 1000 is a mobile phone.
[0050] The active area 1000A and the peripheral area 1000NA may be defined in the electronic device 1000. The electronic device 1000 may display an image through the active area 1000A. The active area 1000A may include a plane defined by a first direction DR1 and a second direction DR2. The peripheral area 1000NA may surround the periphery of the active area 1000A. In an embodiment of the present disclosure, the peripheral area 1000NA may be omitted.
[0051] The thickness direction of the electronic device 1000 may be parallel to a third direction DR3 intersecting the first direction DR1 and the second direction DR2. Therefore, the front surface (or upper surface) and the rear surface (or lower surface) of the members constituting the electronic device 1000 may be defined based on the third direction DR3.
[0052] Figure 2 is a perspective view of an electronic device 1000 - 1 according to an embodiment of the present disclosure.
[0053] refer to Figure 2 , the electronic device 1000-1 may include a folding area FA and a plurality of non-folding areas NFA1 and NFA2. The non-folding areas NFA1 and NFA2 may include a first non-folding area NFA1 and a second non-folding area NFA2. The folding area FA may be disposed between the first non-folding area NFA1 and the second non-folding area NFA2. The folding area FA may represent a foldable area, and the first non-folding area NFA1 and the second non-folding area NFA2 may represent a first non-foldable area and a second non-foldable area.
[0054] like Figure 2 As shown in , the folding area FA can be folded relative to the folding axis FX parallel to the second direction DR2. In the state where the electronic device 1000-1 is folded, the folding area FA has a predetermined curvature and a predetermined radius of curvature. The first non-folding area NFA1 and the second non-folding area NFA2 can face each other, and the electronic device 1000-1 can be folded inwardly so that the display surface is not exposed to the outside.
[0055] In an embodiment of the present disclosure, the electronic device 1000-1 may be folded outward so that the display surface is exposed to the outside. In an embodiment of the present disclosure, the electronic device 1000-1 may be folded inward or outward in a state where the electronic device 1000-1 is unfolded, but the present disclosure is not limited thereto.
[0056] Figure 2 It is exemplarily shown that one folding axis FX is defined in the electronic device 1000-1, but the present disclosure is not limited thereto. For example, a plurality of folding axes may be defined in the electronic device 1000-1, and the electronic device 1000-1 may be folded inwardly or outwardly on each of the plurality of folding axes in an unfolded state.
[0057] Figure 1 and Figure 2 The bar-type electronic device 1000 and the foldable-type electronic device 1000-1 are exemplarily shown, but the present disclosure is not limited thereto. For example, the following description may be applied to various electronic devices such as a curved electronic device, a rollable electronic device, or a slidable electronic device.
[0058] Figure 3 is a cross-sectional view of an electronic device 1000 according to an embodiment of the present disclosure.
[0059] refer to Figure 3 , the electronic device 1000 may include the display layer 100 , the sensor layer 200 , the optical layer 300 , and the window 400 . However, this is merely an example, and the electronic device 1000 may not include the optical layer 300 and the window 400 .
[0060] The display layer 100 may include a base layer 110 , a circuit layer 120 , an element layer 130 , and an encapsulation layer 140 .
[0061] The base layer 110 may be a member providing a base surface on which the circuit layer 120 is disposed. The base layer 110 may be a glass substrate, a metal substrate, a silicon substrate, a polymer substrate, etc. However, the embodiment is not limited thereto, and the base layer 110 may be an inorganic layer, an organic layer, or a composite material layer.
[0062] The circuit layer 120 may be disposed on the base layer 110. The circuit layer 120 may include an insulating layer, a semiconductor pattern, a conductive pattern, a signal line, and / or the like. The insulating layer, the semiconductor layer, and the conductive layer are formed on the base layer 110 in a manner such as coating and deposition, and thereafter, the insulating layer, the semiconductor layer, and the conductive layer may be selectively patterned by a plurality of photolithography processes. Thereafter, the semiconductor pattern, the conductive pattern, and the signal line included in the circuit layer 120 may be formed.
[0063] The element layer 130 may be disposed on the circuit layer 120. The element layer 130 may include a light emitting element. For example, the element layer 130 may include an organic light emitting material, an inorganic light emitting material, an organic-inorganic light emitting material, a quantum dot, a quantum rod, a micro light emitting diode ("LED"), or a nano LED.
[0064] The encapsulation layer 140 may be disposed on the element layer 130. The encapsulation layer 140 may protect the element layer 130 from foreign substances such as moisture, oxygen, and dust particles.
[0065] The sensor layer 200 may be disposed on the display layer 100. The sensor layer 200 may be formed on the display layer 100 by a continuous process. In this case, it may be indicated that the sensor layer 200 is directly disposed on the display layer 100. The aspect that the sensor layer 200 is directly disposed on the display layer 100 may mean that no third component is disposed between the sensor layer 200 and the display layer 100. That is, no separate adhesive member may be disposed between the sensor layer 200 and the display layer 100. Alternatively, the sensor layer 200 may be coupled to the display layer 100 by an adhesive member. The adhesive member may include a general adhesive or a pressure-sensitive adhesive.
[0066] The optical layer 300 may be disposed on the sensor layer 200. The optical layer 300 may reduce reflectivity of external light input from the outside of the electronic device 1000. The optical layer 300 may be directly disposed on the sensor layer 200. However, the present disclosure is not limited thereto, and an adhesive member may be disposed between the optical layer 300 and the sensor layer 200.
[0067] The window 400 may be disposed on the optical layer 300. An adhesive member may be disposed between the optical layer 300 and the window 400, but the present disclosure is not particularly limited thereto. The window 400 may include an optically transparent insulating material. For example, the window 400 may include glass or plastic. The window 400 may have a multilayer structure or a single-layer structure. For example, the window 400 may include a plurality of plastic films coupled by an adhesive, or include a glass substrate and a plastic substrate coupled by an adhesive.
[0068] Figure 4 1 is an enlarged plan view showing a portion of the display layer 100 according to an embodiment of the present disclosure. As used herein, a “plan view” is a view in the thickness direction (ie, the third direction DR3 ) of the electronic device 1000 .
[0069] refer to Figure 4 , the display layer 100 may include a plurality of pixels PXr, PXg, and PXb. The pixels PXr, PXg, and PXb may include a first pixel PXr, a second pixel PXg, and a third pixel PXb.
[0070] The first light emitting region PXAR may be defined in the first pixel PXr, the second light emitting region PXAG may be defined in the second pixel PXg, and the third light emitting region PXAB may be defined in the third pixel PXb. Figure 4The circular shapes shown in the figure may correspond to the shapes of the first light emitting region PXAR, the second light emitting region PXAG, and the third light emitting region PXAB, respectively. However, the shapes of the first light emitting region PXAR, the second light emitting region PXAG, and the third light emitting region PXAB are not limited thereto. For example, the first light emitting region PXAR, the second light emitting region PXAG, and the third light emitting region PXAB may have various shapes such as a quadrilateral shape, a polygonal shape, an elliptical shape, a triangular shape, or an irregular shape on a plane.
[0071] In an embodiment of the present disclosure, the first pixels PXr and the third pixels PXb may be arranged alternately and repeatedly one after another in the first direction DR1 and the second direction DR2. The second pixel PXg may be disposed in a space between two first pixels PXr adjacent to each other in a diagonal direction and two third pixels PXb adjacent to each other in a diagonal direction. Figure 4 The arrangement relationship between the first pixel PXr, the second pixel PXg, and the third pixel PXb shown in is an example, and the arrangement relationship between the first pixel PXr, the second pixel PXg, and the third pixel PXb is not particularly limited thereto. The diagonal direction may be a direction between the first direction DR1 and the second direction DR2, or a direction opposite to the first direction DR1 and a direction between the second direction DR2.
[0072] In an embodiment of the present disclosure, the area of the third light emitting region PXAB may be the largest, and the area of the second light emitting region PXAG may be the smallest. However, the present disclosure is not particularly limited thereto. For example, the areas of the first light emitting region PXAR, the second light emitting region PXAG, and the third light emitting region PXAB may be the same or may be different from the example shown.
[0073] Figure 5 is a cross-sectional view showing a portion of the electronic device 1000 according to an embodiment of the present disclosure. For example, Figure 5 According to the embodiment of the present disclosure, Figure 4 The cross-sectional view of the display layer 100 is shown along the line II′.
[0074] refer to Figure 5 , at least one inorganic layer is formed on the upper surface of the base layer 110. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may be formed as a multilayer. The multilayer inorganic layer may constitute a barrier layer and / or a buffer layer. In an embodiment, the display layer 100 is shown as including a buffer layer BFL.
[0075] The buffer layer BFL may improve the bonding force between the base layer 110 and the semiconductor pattern. The buffer layer BFL may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. For example, the buffer layer BFL may include a structure in which silicon oxide layers and silicon nitride layers are alternately stacked.
[0076] The semiconductor pattern may be disposed on the buffer layer BFL. The semiconductor pattern may include polycrystalline silicon. However, the present disclosure is not limited thereto, and the semiconductor pattern may include amorphous silicon, low temperature polycrystalline silicon, or an oxide semiconductor.
[0077] Figure 5 Only a portion of the semiconductor pattern is shown, and the semiconductor pattern may be further arranged in another region. The semiconductor pattern may be arranged across the pixel in a specific rule. Depending on whether the semiconductor pattern is doped, the semiconductor pattern may have different electrical characteristics. The semiconductor pattern may include a first region with higher conductivity and a second region with lower conductivity. The first region may be doped with an N-type dopant or a P-type dopant. The P-type transistor may include a doped region doped with a P-type dopant, and the N-type transistor may include a doped region doped with an N-type dopant. The second region may be a non-doped region or may be a region doped with a concentration lower than that of the first region.
[0078] The conductivity of the first region is greater than the conductivity of the second region, and the first region can be substantially used as an electrode or a signal line. The second region can substantially correspond to an active region (or channel) of a transistor. In other words, a portion of the semiconductor pattern can be an active region of a transistor, another portion of the semiconductor pattern can be a source region or a drain region of the transistor, and another portion of the semiconductor pattern can be a connecting electrode or a connecting signal line.
[0079] Each of the pixels may include a pixel circuit and a light emitting element. The pixel circuit may include a plurality of transistors and at least one capacitor. Figure 5 The transistor 100PC and the light emitting elements 100PER, 100PEG, and 100PEB included in each of three pixels are exemplarily shown.
[0080] The source region SC, the active region AL, and the drain region DR of the transistor 100PC may be formed from a semiconductor pattern. The source region SC and the drain region DR may extend from the active region AL in opposite directions in a cross section. Figure 5 A portion of a connection signal line SCL formed from a semiconductor pattern is shown. Although not separately shown, the connection signal line SCL may be connected to the drain region DR of the transistor 100PC on a plane.
[0081] The first insulating layer 10 may be disposed on the buffer layer BFL. The first insulating layer 10 may overlap with a plurality of pixels in common in a plan view and cover the semiconductor pattern. The first insulating layer 10 may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In an embodiment, the first insulating layer 10 may be a single-layer silicon oxide layer. The first insulating layer 10 and the insulating layer of the circuit layer 120 to be described below may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The inorganic layer may include at least one of the above materials, but the present disclosure is not limited thereto.
[0082] The gate GT of the transistor 100PC is disposed on the first insulating layer 10. The gate GT may be a part of the metal pattern. The gate GT overlaps the active area AL in a plan view. The gate GT may be used as a mask in a process of doping the semiconductor pattern.
[0083] The second insulating layer 20 may be disposed on the first insulating layer 10 and cover the gate electrode GT. The second insulating layer 20 may overlap the pixel in common in a plan view. The second insulating layer 20 may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The second insulating layer 20 may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. In an embodiment, the second insulating layer 20 may have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.
[0084] The third insulating layer 30 may be disposed on the second insulating layer 20. The third insulating layer 30 may have a single layer structure or a multi-layer structure. For example, the third insulating layer 30 may have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.
[0085] The first connection electrode CNE1 may be disposed on the third insulating layer 30. The first connection electrode CNE1 may be connected to the connection signal line SCL through a contact hole CNT-1 passing through the first insulating layer 10, the second insulating layer 20, and the third insulating layer 30.
[0086] The fourth insulating layer 40 may be disposed on the third insulating layer 30. The fourth insulating layer 40 may be a single silicon oxide layer. The fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer.
[0087] The second connection electrode CNE2 may be disposed on the fifth insulating layer 50. The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through a contact hole CNT-2 passing through the fourth insulating layer 40 and the fifth insulating layer 50.
[0088] The sixth insulating layer 60 may be disposed on the fifth insulating layer 50 to cover the second connection electrode CNE2. The sixth insulating layer 60 may be an organic layer.
[0089] The element layer 130 may be disposed on the circuit layer 120. The element layer 130 may include light emitting elements 100PER, 100PEG, and 100PEB. For example, each of the light emitting elements 100PER, 100PEG, and 100PEB may include an organic light emitting material, an inorganic light emitting material, an organic-inorganic light emitting material, a quantum dot, a quantum rod, a micro light emitting diode (LED), or a nano LED. Hereinafter, each of the light emitting elements 100PER, 100PEG, and 100PEB will be described as an organic light emitting element, but the present disclosure is not particularly limited thereto.
[0090] The light-emitting elements 100PER, 100PEG, and 100PEB may include a first light-emitting element 100PER, a second light-emitting element 100PEG, and a third light-emitting element 100PEB. The first light-emitting element 100PER may include a first pixel electrode AER, a first light-emitting layer ELR, and a common electrode CE. The second light-emitting element 100PEG may include a second pixel electrode AEG, a second light-emitting layer ELG, and a common electrode CE. The third light-emitting element 100PEB may include a third pixel electrode AEB, a third light-emitting layer ELB, and a common electrode CE. The common electrode CE included in the first light-emitting element 100PER, the second light-emitting element 100PEG, and the third light-emitting element 100PEB may be set in an integral shape. The first pixel electrode AER, the second pixel electrode AEG, and the third pixel electrode AEB may be referred to as a first electrode or an anode. The common electrode CE may be referred to as a second electrode and a cathode.
[0091] Hereinafter, the first light emitting element 100PER will be representatively described. The description of the second light emitting element 100PEG and the third light emitting element 100PEB may be substantially the same. Hereinafter, the first pixel electrode AER is referred to as the first electrode AER, the first light emitting layer ELR is referred to as the light emitting layer ELR, and the common electrode CE is referred to as the second electrode CE.
[0092] The first electrode AER may be disposed on the sixth insulating layer 60. The first electrode AER may be connected to the second connection electrode CNE2 through a contact hole CNT-3 passing through the sixth insulating layer 60.
[0093] The pixel defining film 70 may be disposed on the sixth insulating layer 60 and may cover a portion of the first electrode AER. A pixel defining opening 70-OP is defined in the pixel defining film 70. The pixel defining opening 70-OP of the pixel defining film 70 exposes at least a portion of the first electrode AER.
[0094] Active area 1000A (see Figure 1 ) may include light-emitting areas PXAR, PXAG and PXAB and non-light-emitting areas adjacent to the light-emitting areas PXAR, PXAG and PXAB. The non-light-emitting areas may surround the light-emitting areas PXAR, PXAG and PXAB. In an embodiment, the light-emitting areas PXAR, PXAG and PXAB may include a first light-emitting area PXAR, a second light-emitting area PXAG and a third light-emitting area PXAB. The first light-emitting area PXAR, the second light-emitting area PXAG and the third light-emitting area PXAB may be defined as partial areas corresponding to the first electrodes AER, AEG and AEB, respectively. The first light-emitting area PXAR may emit red light, the second light-emitting area PXAG may emit green light, and the third light-emitting area PXAB may emit blue light.
[0095] The light-emitting layers ELR, ELG, and ELB may be arranged on the first electrodes AER, AEG, and AEB, respectively. The light-emitting layer ELR may be disposed in a region corresponding to the pixel-defining opening 70-OP. That is, the light-emitting layers ELR, ELG, and ELB may be disposed separately in the pixel. When the light-emitting layers ELR, ELG, and ELB are formed separately in the pixel, each of the light-emitting layers ELR, ELG, and ELB may emit light having at least one of blue, red, and green. However, the present disclosure is not limited thereto, and the light-emitting layers ELR, ELG, and ELB may be connected to each other and may be commonly included in a plurality of light-emitting elements. In this case, the light-emitting layers ELR, ELG, and ELB may provide blue light or white light.
[0096] The second electrode CE may be disposed on the light emitting layers ELR, ELG, and ELB. The second electrode CE may have an integral shape and may be commonly included in a plurality of pixels.
[0097] The hole control layer may be disposed between the first electrodes AER, AEG and AEB and the light-emitting layers ELR, ELG and ELB. The hole control layer may include a hole transport layer and may further include a hole injection layer. The electron control layer may be disposed between the light-emitting layers ELR, ELG and ELB and the second electrode CE. The electron control layer may include an electron transport layer and may further include an electron injection layer. The hole control layer and the electron control layer may be commonly disposed in a plurality of pixels by using an open mask or an inkjet process.
[0098] The encapsulation layer 140 may be disposed on the element layer 130. The encapsulation layer 140 may include a first inorganic layer 141, an organic layer 142, and a second inorganic layer 143 stacked in sequence, but the layers constituting the encapsulation layer 140 are not limited thereto. The first inorganic layer 141 and the second inorganic layer 143 may protect the element layer 130 from moisture and oxygen, and the organic layer 142 may protect the element layer 130 from foreign matter such as dust particles. The first inorganic layer 141 and the second inorganic layer 143 may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, an aluminum oxide layer, and the like. The organic layer 142 may include an acryl-based organic layer, but the present disclosure is not particularly limited thereto.
[0099] The sensor layer 200 may be disposed on the display layer 100. The sensor layer 200 may be referred to as a sensor, an input sensing layer, or an input sensing panel. The sensor layer 200 may include a sensor base layer 210, a first sensor conductive layer 220, a sensor insulating layer 230, a second sensor conductive layer 240, and a sensor cover layer 250.
[0100] The sensor base layer 210 may be directly disposed on the display layer 100. The sensor base layer 210 may be an inorganic layer including at least one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the sensor base layer 210 may be an organic layer including epoxy resin, acrylic resin, or imide-based resin. The sensor base layer 210 may have a single-layer structure or a multi-layer structure in which layers are stacked in the third direction DR3.
[0101] Each of the first sensor conductive layer 220 and the second sensor conductive layer 240 may have a single layer structure or a multi-layer structure in which layers are stacked in the third direction DR3 .
[0102] The conductive layer having a single-layer structure may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum (Mo), silver (Ag), titanium (Ti), copper (Cu), aluminum (Al) or an alloy thereof. The transparent conductive layer may include a transparent conductive oxide such as indium tin oxide, indium zinc oxide, zinc oxide or indium zinc tin oxide. In addition, the transparent conductive layer may include a conductive polymer such as poly (3,4-ethylenedioxythiophene) ("PEDOT"), metal nanowires, graphene, etc.
[0103] The conductive layer having a multi-layer structure may include a metal layer. The metal layer may have a three-layer structure of, for example, titanium / aluminum / titanium. The conductive layer having a multi-layer structure may include at least one metal layer and at least one transparent conductive layer.
[0104] The sensor insulating layer 230 may be disposed between the first sensor conductive layer 220 and the second sensor conductive layer 240. The sensor insulating layer 230 may include an inorganic film. The inorganic film may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.
[0105] Alternatively, the sensor insulating layer 230 may include an organic film. The organic film may include at least one of an acryl-based resin, a methacrylate-based resin, a polyisoprene-based resin, a vinyl-based resin, an epoxy-based resin, a urethane-based resin, a cellulose-based resin, a siloxane-based resin, a polyimide-based resin, a polyamide-based resin, and a perylene-based resin.
[0106] The sensor cover layer 250 may be disposed on the sensor insulating layer 230 and cover the second sensor conductive layer 240. The second sensor conductive layer 240 may include a conductive pattern. The sensor cover layer 250 may cover the conductive pattern to reduce or eliminate the possibility of damage to the conductive pattern in subsequent processes. The sensor cover layer 250 may include an inorganic material. For example, the sensor cover layer 250 may include silicon nitride, but the present disclosure is not particularly limited thereto. In an embodiment of the present disclosure, the sensor cover layer 250 may be omitted.
[0107] The optical layer 300 may be disposed on the sensor layer 200. The optical layer 300 may include a light shielding layer 310, a plurality of color filters 320, and a planarization layer 330.
[0108] The light shielding layer 310 may be disposed to overlap with the conductive pattern of the second sensor conductive layer 240 in a plan view. The sensor cover layer 250 may be disposed between the light shielding layer 310 and the second sensor conductive layer 240. The light shielding layer 310 may prevent external light from being reflected by the second sensor conductive layer 240. The material constituting the light shielding layer 310 is not particularly limited as long as the material absorbs light. The light shielding layer 310 is a layer having a black color, and in an embodiment, the light shielding layer 310 may include a black colorant. The black colorant may include a black dye and a black pigment. The black colorant may include carbon black, a metal such as chromium, or an oxide thereof.
[0109] A plurality of openings OPR, OPG, and OPB may be defined in the light shielding layer 310. The openings OPR, OPG, and OPB may overlap the first light emitting layer ELR, the second light emitting layer ELG, and the third light emitting layer ELB, respectively, in a plan view, and may be referred to as a first opening OPR, a second opening OPG, and a third opening OPB. The color filter 320 may include a first color filter 320R, a second color filter 320G, and a third color filter 320B. The first color filter 320R, the second color filter 320G, and the third color filter 320B may be arranged to correspond to the first opening OPR, the second opening OPG, and the third opening OPB, respectively. The first color filter 320R, the second color filter 320G, and the third color filter 320B may transmit light provided from the first light emitting layer ELR, the second light emitting layer ELG, and the third light emitting layer ELB, which overlap with the first color filter 320R, the second color filter 320G, and the third color filter 320B in a plan view.
[0110] The planarization layer 330 may cover the light shielding layer 310 and the color filter 320. The planarization layer 330 may include an organic material, and a flat surface may be provided as an upper surface of the planarization layer 330. In an embodiment, the planarization layer 330 may be omitted.
[0111] In an embodiment of the present disclosure, the optical layer 300 may include a reflection adjustment layer instead of the color filter 320. For example, Figure 5 In the illustration of FIG. 3 , the color filter 320 may be omitted, and a reflection adjustment layer may be added to the position where the color filter 320 is omitted. The reflection adjustment layer may selectively absorb light having a partial wavelength band among light reflected from the inside of the display layer and / or the electronic device or light input from the outside of the display layer and / or the electronic device.
[0112] In an embodiment of the present disclosure, at least one of the display layer 100 and the optical layer 300 may further include a brightness control layer BCL. Figure 5 It is exemplarily shown that the optical layer 300 further includes a brightness control layer BCL.
[0113] In an embodiment of the present disclosure, the brightness control layer BCL may be configured to improve the white angle difference ("WAD") characteristic of the electronic device 1000. WAD is an item that evaluates the change in white characteristics according to the viewing angle. For example, the WAD characteristic may be evaluated by measuring the amount of change in brightness and the amount of change in color coordinates according to the viewing angle compared to the brightness and color coordinates when observed in a direction perpendicular to the screen (e.g., a third direction DR3). When the WAD characteristic is improved, the display quality of the electronic device 1000 may be effectively improved.
[0114] In an embodiment of the present disclosure, in a plan view, the brightness control layer BCL may overlap with the first light emitting region PXAR, and may not overlap with the second light emitting region PXAG and the third light emitting region PXAB. The brightness control layer BCL may be configured to control the brightness of light propagating between the first angle AG1 and the second angle AG2. For example, the first angle AG1 may be 60 degrees, and the second angle AG2 may be 30 degrees, but the present disclosure is not particularly limited thereto.
[0115] In an embodiment of the present disclosure, the transmittance of the brightness control layer BCL may be less than 100% (percent) and may be higher than the transmittance of the light shielding layer 310. Transmittance refers to "light transmittance". For example, the transmittance of the brightness control layer BCL may be greater than 82% and less than 100%, and may be, for example, about 88%. However, this is merely an example, and the present disclosure is not particularly limited thereto. The brightness control layer BCL may adjust the color sense by reducing the brightness of the light provided from the first light emitting area PXAR at a specific angle. The brightness control layer BCL may be referred to as a color control layer, a color adjustment layer, a brightness adjustment layer, a brightness compensation layer, a color compensation layer, a translucent layer, or a transparent layer.
[0116] In an embodiment of the present disclosure, the brightness control layer BCL may be arranged to overlap with the first light emitting region PXAR among the first light emitting region PXAR, the second light emitting region PXAG, and the third light emitting region PXAB in a plan view. In addition, in a plan view, the brightness control layer BCL may overlap with the first opening OPR among the second opening OPG and the third opening OPB, and may not overlap with the second opening OPG and the third opening OPB. However, the present disclosure is not particularly limited to this. For example, when controlling the brightness of the light provided from the second light emitting region PXAG or the third light emitting region PXAB, the position of the brightness control layer BCL may be changed.
[0117] In an embodiment of the present disclosure, the brightness control layer BCL may include a first edge E1 and a second edge E2. The second edge E2 may surround the first edge E1. Fig.10 ), the first edge E1 may be an inner edge, and the second edge E2 may be an outer edge outside the first edge E1 and opposite to the first edge E1. In a plan view, the first edge E1 may overlap with the first light emitting region PXAR, and the second edge E2 may overlap with the light shielding layer 310. Therefore, the brightness control layer BCL may overlap with the sidewall 310S of the light shielding layer 310 defining the first opening OPR in a plan view.
[0118] In an embodiment of the present disclosure, the brightness control layer BCL may be disposed between the first light emitting element 100PER and the first opening OPR. The brightness control layer BCL may be disposed between the light shielding layer 310 and the encapsulation layer 140. In detail, the brightness control layer BCL may be disposed between the light shielding layer 310 and the sensor layer 200, and the brightness control layer BCL may be in contact with the light shielding layer 310 and the sensor layer 200.
[0119] In an embodiment of the present disclosure, the brightness control layer BCL may include a first portion BC-1 and a second portion BC-2. The first portion BC-1 may be covered by the light shielding layer 310, and the second portion BC-2 may not be covered by the light shielding layer 310. The first thickness TK1 (i.e., the maximum thickness) of the light shielding layer 310 may be greater than the second thickness TK2 (i.e., the maximum thickness) of the brightness control layer BCL. For example, the first thickness TK1 and the second thickness TK2 may be the maximum thickness. The second portion BC-2 of the brightness control layer BCL may be covered by the first color filter 320R.
[0120] Figure 6 is a cross-sectional view showing a portion of an electronic device 1000a according to an embodiment of the present disclosure. Figure 6 In the description of Figure 5 The same components as those described in are designated by the same reference numerals, and description thereof will be omitted.
[0121] refer to Figure 6 , at least one of the display layer 100 and the optical layer 300 may further include a brightness control layer BCLa. Figure 6 It is exemplarily shown that the optical layer 300 includes the brightness control layer BCLa.
[0122] In an embodiment of the present disclosure, in a plan view, the brightness control layer BCLa may overlap with the first light emitting area PXAR, and may not overlap with the second light emitting area PXAG and the third light emitting area PXAB. The brightness control layer BCLa may be configured to control the brightness of light propagating between a first angle AG1 and a second angle AG2. For example, the first angle AG1 may be 60 degrees, and the second angle AG2 may be 30 degrees, but the present disclosure is not particularly limited thereto. The brightness control layer BCLa may adjust the color sense by reducing the brightness of light provided at a specific angle from the first light emitting area PXAR. Therefore, with the improvement of the WAD characteristics, the display quality of the electronic device 1000a may be effectively improved.
[0123] In an embodiment of the present disclosure, the brightness control layer BCLa may include a first portion BP1 having a first transmittance and a second portion BP2 having a second transmittance less than the first transmittance. The first portion BP1 may be adjacent to a first edge E1 of the brightness control layer BCLa, and the second portion BP2 may be adjacent to a second edge E2 of the brightness control layer BCLa. The brightness control layer BCLa may have a gradual transmittance distribution. For example, the transmittance of the brightness control layer BCLa may gradually decrease from the first edge E1 to the second edge E2.
[0124] In an embodiment of the present disclosure, the transmittance of the brightness control layer BCLa may be less than 100%, and may be higher than the transmittance of the light shielding layer 310. For example, the transmittance of the first portion BP1 of the brightness control layer BCLa may be greater than 82% and less than 100%, and, for example, may be greater than or equal to 88% and less than or equal to 91%. The transmittance of the second portion BP2 of the brightness control layer BCLa may be greater than 77% and less than 100%, and, for example, may be greater than or equal to 83% and less than or equal to 86%.
[0125] Figure 7 is a cross-sectional view showing a portion of an electronic device 1000b according to an embodiment of the present disclosure. Figure 7 In the description of Figure 5 The same components as those described in are designated by the same reference numerals, and description thereof will be omitted.
[0126] refer to Figure 7 , at least one of the display layer 100 and the optical layer 300 may further include a brightness control layer BCLb. Figure 7 It is exemplarily shown that the display layer 100 includes a brightness control layer BCLb.
[0127] In an embodiment of the present disclosure, the brightness control layer BCLb may be disposed between the first light emitting element 100PER and the first opening OPR. For example, the brightness control layer BCLb may be disposed between the organic layer 142 and the second inorganic layer 143.
[0128] In an embodiment of the present disclosure, in a plan view, the brightness control layer BCLb may overlap with the first light emitting area PXAR, and may not overlap with the second light emitting area PXAG and the third light emitting area PXAB. The brightness control layer BCLb may be configured to control the brightness of light propagating between a first angle AG1 and a second angle AG2. For example, the first angle AG1 may be 60 degrees, and the second angle AG2 may be 30 degrees, but the present disclosure is not particularly limited thereto. The brightness control layer BCLb may adjust the color sense by reducing the brightness of light provided at a specific angle from the first light emitting area PXAR. Therefore, with the improvement of the WAD characteristics, the display quality of the electronic device 1000b may be effectively improved.
[0129] Figure 8 is a cross-sectional view showing a portion of an electronic device 1000c according to an embodiment of the present disclosure. Figure 8 In the description of Figure 5 The same components as those described in are designated by the same reference numerals, and description thereof will be omitted.
[0130] refer to Figure 8 , the sensor layer 200 may further include a brightness control layer BCLc. Figure 8 It is exemplarily shown that the sensor layer 200 includes a brightness control layer BCLc.
[0131] In an embodiment of the present disclosure, the brightness control layer BCLc may be disposed between the first light emitting element 100PER and the first opening OPR. For example, the brightness control layer BCLc may be disposed between the encapsulation layer 140 and the sensor base layer 210.
[0132] In an embodiment of the present disclosure, in a plan view, the brightness control layer BCLc may overlap with the first light emitting area PXAR, and may not overlap with the second light emitting area PXAG and the third light emitting area PXAB. The brightness control layer BCLc may be configured to control the brightness of light propagating between a first angle AG1 and a second angle AG2. For example, the first angle AG1 may be 60 degrees, and the second angle AG2 may be 30 degrees, but the present disclosure is not particularly limited thereto. The brightness control layer BCLc may adjust the color sense by reducing the brightness of light provided at a specific angle from the first light emitting area PXAR. Therefore, with the improvement of the WAD characteristics, the display quality of the electronic device 1000c may be effectively improved.
[0133] Fig. 9 is a cross-sectional view showing a portion of an electronic device 1000d according to an embodiment of the present disclosure. Fig. 9 In the description of Figure 5 The same components as those described in are designated by the same reference numerals, and description thereof will be omitted.
[0134] refer to Fig. 9 , the sensor layer 200 may further include a brightness control layer BCLd. Fig. 9 It is exemplarily shown that the sensor layer 200 includes a brightness control layer BCLd.
[0135] In an embodiment of the present disclosure, the brightness control layer BCLd may be disposed between the first light emitting element 100PER and the first opening OPR. For example, the brightness control layer BCLd may be included in the sensor layer 200.
[0136] In an embodiment of the present disclosure, in a plan view, the brightness control layer BCLd may overlap with the first light emitting area PXAR, and may not overlap with the second light emitting area PXAG and the third light emitting area PXAB. The brightness control layer BCLd may be configured to control the brightness of light propagating between a first angle AG1 and a second angle AG2. For example, the first angle AG1 may be 60 degrees, and the second angle AG2 may be 30 degrees, but the present disclosure is not particularly limited thereto. The brightness control layer BCLd may adjust the color sense by reducing the brightness of light provided at a specific angle from the first light emitting area PXAR. Therefore, with the improvement of the WAD characteristics, the display quality of the electronic device 1000d may be effectively improved.
[0137] exist Figures 7 to 9 Each of the brightness control layers BCLb, BCLc, and BCLd described in the above may be included in the display layer 100 or the sensor layer 200. Therefore, each of the brightness control layers BCLb, BCLc, and BCLd may be spaced apart from the light shielding layer 310. The transmittance of each of the brightness control layers BCLb, BCLc, and BCLd may be less than 100% and greater than the transmittance of the light shielding layer 310. For example, each of the brightness control layers BCLb, BCLc, and BCLd may have a thickness of Figure 5 Alternatively, each of the brightness control layers BCLb, BCLc, and BCLd may have a single transmittance similar to Figure 6 In this case, when viewed in the third direction DR3, the transmittance of a portion of each of the brightness control layers BCLb, BCLc, and BCLd that overlaps or is adjacent to the light shielding layer 310 in a plan view may be less than the transmittance of a portion thereof that is spaced apart from the light shielding layer 310.
[0138] Fig.10 1 is a diagram showing an electronic device 1000 (see Figure 5 )'s floor plan of some components.
[0139] refer to Figure 5 and Fig.10, the brightness control layer BCL may have a first edge E1 and a second edge E2 surrounding the first edge E1. Therefore, the shape of the brightness control layer BCL may be a ring shape.
[0140] In an embodiment of the present disclosure, the display layer 100 or the optical layer 300 may include a brightness control layer BCL. That is, the brightness control layer BCL may be included in at least one of the display layer 100 and the optical layer 300. For example, Figure 5 In the embodiment shown in , the brightness control layer BCL may be included in the optical layer 300. Figure 7 In the embodiment shown in , the brightness control layer BCL may be included in the display layer 100 .
[0141] Fig.10 The first pixel-defining opening 70-OPR defined in the pixel-defining film 70 and the first opening OPR defined in the light shielding layer 310 are exemplarily shown. The shape of each of the first pixel-defining opening 70-OPR and the first opening OPR may be circular. The first pixel-defining opening 70-OPR may correspond to the first light-emitting area PXAR. The shape of the brightness control layer BCL may have a ring shape corresponding to the shape of the first pixel-defining opening 70-OPR and the first opening OPR. However, the shapes of the first pixel-defining opening 70-OPR, the first opening OPR, and the brightness control layer BCL are merely examples and are not particularly limited to the examples shown.
[0142] exist Fig.10 The dotted line shown in the figure may correspond to the sidewall 70S of the pixel defining film 70 defining the first pixel defining opening 70-OPR and the sidewall 310S of the light shielding layer 310 for defining the first opening OPR. The size of the first pixel defining opening 70-OPR may be larger than the size of the area surrounded by the first edge E1 of the brightness control layer BCL. In addition, the size of the first opening OPR may be larger than the size of the area surrounded by the first edge E1 of the brightness control layer BCL. In addition, both the sidewall 70S of the pixel defining film 70 and the sidewall 310S of the light shielding layer 310 may overlap with the brightness control layer BCL in a plan view.
[0143] Fig.11A is a graph depicting color coordinates according to viewing angles according to a comparative example of the present disclosure. Fig. 11B is a graph depicting color coordinates according to viewing angles according to an embodiment of the present disclosure. Fig. 11C is a graph depicting color coordinates according to viewing angles according to a comparative example of the present disclosure.
[0144] refer to FIG. 11A to FIG. 11C, the first points CC1, CC1a and CC1b represent color coordinates when the viewing angle is 0 degrees, the second points CC2, CC2a and CC2b represent color coordinates when the viewing angle is 30 degrees, the third points CC3, CC3a and CC3b represent color coordinates when the viewing angle is 45 degrees, and the fourth points CC4, CC4a and CC4b represent color coordinates when the viewing angle is 60 degrees. The viewing angle may mean a viewing angle tilted relative to the normal direction of the display area. The normal direction of the display area (i.e., the thickness direction of the electronic device 1000) is represented by a third direction DR3.
[0145] Reference together Figure 5 , when the viewing angle is 0 degrees, the white coordinates of the electronic device 1000 can be adjusted based on the determined target color coordinates. In addition, the white coordinates at a viewing angle of 45 degrees can be adjusted to specific color coordinates by adjusting the film thickness of the organic layer included in the display layer 100. For example, the organic layer can be a first light-emitting layer ELR, a second light-emitting layer ELG, and a third light-emitting layer ELB. The color coordinate target area TA can be determined based on the color coordinates at 45 degrees. When the white coordinates at 30 degrees and 60 degrees are arranged within the color coordinate target area TA, the electronic device can be evaluated as a good product.
[0146] Fig.11A is a graph depicting the change in color coordinates according to viewing angles when there is no brightness control layer BCL. In this case, the second point CC2 having a color coordinate at 30 degrees may be set outside the color coordinate target area TA. Therefore, a phenomenon may occur that an image displayed by the electronic device appears red at a certain viewing angle.
[0147] Fig. 11B is a graph depicting a change in color coordinates according to a viewing angle when the transmittance of the brightness control layer BCL is 88% according to an embodiment of the present disclosure. The second point CC2a as a color coordinate at 30 degrees and the third point CC3a as a color coordinate at 60 degrees can both be arranged within the color coordinate target area TA. Therefore, the color difference according to the viewing angle can be reduced, and therefore, the display quality or product quality of the electronic device 1000 can be effectively improved.
[0148] Fig. 11C is a graph depicting the change in color coordinates according to viewing angles when the transmittance of the brightness control layer BCL is 82%. When the transmittance of the brightness control layer BCL is 82%, both the second point CC2b as the color coordinate at 30 degrees and the third point CC3b as the color coordinate at 60 degrees can be arranged within the color coordinate target area TA. Fig. 11BCompared with the embodiment of FIG. 1 , the color change between the first point CC1b and the second point CC2b may occur rapidly. Therefore, the transmittance of the brightness control layer BCL may be greater than 82% and less than 100%, and may be determined to be, for example, about 88%.
[0149] According to the above description, the electronic device may include a brightness control layer for improving WAD characteristics. The transmittance of the brightness control layer may be less than 100% and greater than the transmittance of the light shielding layer. The brightness control layer may adjust the color sense by reducing the brightness of light provided from a specific light emitting area at a specific viewing angle. With the improvement of the WAD characteristics, the display quality of the electronic device may be effectively improved.
[0150] Although the above has been described with reference to the embodiments of the present disclosure, it is to be understood that those skilled in the art or those with general knowledge in the art may make various modifications and changes to the present disclosure without departing from the spirit and technical scope of the present disclosure described in the appended claims. Therefore, the technical scope of the present disclosure is not limited to the detailed description of the specification, but should be defined by the appended claims.
Claims
1. An electronic device, comprising: a display layer including a plurality of light emitting elements defining a plurality of light emitting regions therein; as well as an optical layer, disposed on the display layer, Wherein, the optical layer comprises: a light shielding layer defining a plurality of openings corresponding to the plurality of light emitting regions; and a plurality of color filters arranged to correspond to the plurality of openings, wherein the display layer or the optical layer further comprises a brightness control layer, the brightness control layer overlapping with a first light emitting area among the plurality of light emitting areas and a first opening among the plurality of openings in a plan view, and The brightness control layer includes a first edge and a second edge surrounding the first edge, the first edge overlaps with the first light emitting area in the plan view, and the second edge overlaps with the light shielding layer in the plan view.
2. The electronic device according to claim 1, wherein: The transmittance of the brightness control layer is greater than the transmittance of the light shielding layer and is less than 100%.
3. The electronic device according to claim 1, wherein: The brightness control layer includes a first portion having a first transmittance and a second portion having a second transmittance lower than the first transmittance.
4. The electronic device according to claim 3, wherein: The first portion is adjacent to the first edge, and the second portion is adjacent to the second edge.
5. The electronic device according to claim 1, wherein: The brightness control layer overlaps with a side wall of the light shielding layer defining the first opening in the plan view.
6. The electronic device according to claim 1, wherein: A first portion of the brightness control layer is covered by the light shielding layer, and a second portion of the brightness control layer is covered by a first color filter among the plurality of color filters.
7. The electronic device according to claim 6, wherein: The maximum thickness of the brightness control layer is smaller than the maximum thickness of the light shielding layer.
8. The electronic device according to claim 1, wherein: The display layer also includes: Base layer; A circuit layer, disposed on the base layer; an element layer, disposed on the circuit layer and including the plurality of light emitting elements; and a packaging layer, disposed on the component layer, and Wherein, the brightness control layer is arranged inside the display layer or on the encapsulation layer.
9. The electronic device according to claim 8, wherein: Each of the plurality of light emitting elements comprises: a first electrode; a light-emitting layer, disposed on the first electrode; and A second electrode is disposed on the light-emitting layer, The element layer further includes a pixel defining film, in which a pixel defining opening overlapping a portion of the first electrode in the plan view is defined, and In the plan view, a size of the pixel defining opening is larger than a size of a region surrounded by the first edge of the brightness control layer.
10. The electronic device according to claim 1, wherein: The plurality of light emitting elements include a first light emitting element in which the first light emitting area is defined, a second light emitting element in which a second light emitting area is defined, and a third light emitting element in which a third light emitting area is defined, The plurality of openings include the first opening overlapping the first light emitting area, the second opening overlapping the second light emitting area, and the third opening overlapping the third light emitting area, and The first light emitting region is configured to emit red light, the second light emitting region is configured to emit green light, and the third light emitting region is configured to emit blue light.
11. The electronic device according to claim 1, wherein: The shape of each of the plurality of openings is circular in the plan view.
12. The electronic device according to claim 1, wherein: The shape of the brightness control layer is a ring shape in the plan view.
13. An electronic device comprising: Base layer; A circuit layer, disposed on the base layer; an element layer disposed on the circuit layer and including a light emitting element defining a light emitting area therein; A packaging layer, disposed on the component layer; a light shielding layer, disposed on the encapsulation layer and defining an opening corresponding to the light emitting area; a color filter disposed on the light shielding layer and configured to cover the opening; as well as a brightness control layer, arranged between the light emitting element and the opening, Wherein, the transmittance of the brightness control layer is higher than the transmittance of the light shielding layer.
14. The electronic device according to claim 13, wherein: In a plan view, the brightness control layer overlaps with a side wall of the light shielding layer defining the opening and has a ring shape.
15. The electronic device according to claim 13, wherein: The brightness control layer is disposed between the light shielding layer and the encapsulation layer, a first portion of the brightness control layer is covered by the light shielding layer, and a second portion of the brightness control layer is covered by the color filter.
16. The electronic device according to claim 15, wherein: The maximum thickness of the brightness control layer is smaller than the maximum thickness of the light shielding layer.
17. The electronic device according to claim 13, wherein: The brightness control layer is spaced apart from the light shielding layer.
18. The electronic device according to claim 13, wherein: The brightness control layer includes a first portion having a first transmittance and a second portion having a second transmittance lower than the first transmittance.
19. The electronic device according to claim 13, wherein: The brightness control layer includes a first edge and a second edge surrounding the first edge, in a plan view, the first edge overlaps the light emitting area, and the second edge overlaps the light shielding layer.
20. The electronic device according to claim 19, wherein: The light emitting element comprises: a first electrode; a light-emitting layer, disposed on the first electrode; and A second electrode is disposed on the light-emitting layer, The element layer further includes a pixel defining film, in which a pixel defining opening overlapping a portion of the first electrode in the plan view is defined, and In the plan view, a size of the pixel defining opening is larger than a size of a region surrounded by the first edge of the brightness control layer.
Citation Information
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Hydraulic pressure driving apparatus for checking conveyor
KR1020230109383A