CN114843326A - Display panel - Google Patents
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- CN114843326A CN114843326A CN202210448830.5A CN202210448830A CN114843326A CN 114843326 A CN114843326 A CN 114843326A CN 202210448830 A CN202210448830 A CN 202210448830A CN 114843326 A CN114843326 A CN 114843326A
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The application discloses display panel has the flat display district and is located the curved surface display area of flat display district week side, display panel includes: the display substrate comprises a plurality of pixel units which are arranged in the plane display area and the curved surface display area in an array mode, and each pixel unit comprises at least three sub-pixel units with different colors which are arranged at intervals; the packaging layer is arranged in the light emergent direction of the display substrate and comprises a first inorganic packaging layer, a first organic packaging layer and a second inorganic packaging layer which are sequentially stacked along the light emergent direction far away from the display substrate; wherein the thickness of the first organic encapsulation layer located in the curved display area is smaller than the thickness of the first organic encapsulation layer located in the planar display area. The brightness attenuation of the curved surface display area can be effectively slowed down, so that the brightness difference between the plane display area and the curved surface display area is reduced, and the display effect is improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel.
Background
In recent years, more and more flagship machines or high-end machines on the market adopt the design of the curved surface screen, and the curved surface screen is full of science and technology on the one hand, and on the other hand, the mobile phone tends to be designed without a frame, so that the mobile phone is popular among many consumers. However, in practice, the curved glass design, which is bent too much, will have some effect on the screen reading, although some improvement can be obtained by improving the curvature. However, such curved screen or "waterfall screen" cell phones have a common problem: after the screen is lighted, the curved surface areas on the two sides can appear obvious shadow, namely, the brightness of the curved surface area is lower than that of the plane area. When a user looks at the mobile phone screen, the light emitted from the bent area of the curved glass is not the light emitted from the 0-degree viewing angle, but the light is emitted from the bent area of the curved glass at a larger angle, and the brightness of the curved area is slightly dark due to the microcavity effect at a large angle, so that the picture display effect is poor.
Therefore, improvement is urgently needed to overcome the defects in the prior art.
Disclosure of Invention
An object of the present application is to provide a display panel, so as to solve the problem that the brightness of a curved surface area in the current display panel is attenuated, resulting in the difference between the brightness of a planar area and the brightness of the curved surface area.
The embodiment of the application provides a display panel, have the plane display district and lie in the curved surface display area of plane display district week side, display panel includes: the display substrate comprises a plurality of pixel units which are arranged in the plane display area and the curved surface display area in an array mode, and each pixel unit comprises at least three sub-pixel units which are arranged at intervals and have different colors; the packaging layer is arranged in the light emergent direction of the display substrate and comprises a first inorganic packaging layer, a first organic packaging layer and a second inorganic packaging layer which are sequentially stacked along the light emergent direction far away from the display substrate; wherein the thickness of the first organic encapsulation layer located in the curved display area is smaller than the thickness of the first organic encapsulation layer located in the planar display area.
Optionally, in some embodiments of the present application, a thickness of the encapsulation layer located in the curved display area is the same as a thickness of the encapsulation layer located in the planar display area; wherein the thickness of the second inorganic encapsulation layer located in the curved surface display area is greater than the thickness of the second inorganic encapsulation layer located in the planar display area.
Optionally, in some embodiments of the present application, a thickness of the first organic encapsulation layer located in the curved display region is 1/3-5/6 of a thickness of the first organic encapsulation layer located in the flat display region.
Optionally, in some embodiments of the present application, a thickness of the first organic encapsulation layer located in the planar display region ranges from 8 μm to 15 μm; the thickness of the first organic packaging layer positioned in the curved surface display area is smaller than that of the first organic packaging layer positioned in the plane display area by between 2 and 8 micrometers.
Optionally, in some embodiments of the present application, the display substrate further includes: a substrate base plate; the pixel definition layer is arranged on the substrate and provided with a plurality of pixel openings; the first inorganic packaging layer covers the pixel defining layer and the plurality of sub-pixel units located in the pixel opening.
Optionally, in some embodiments of the present application, the planar display area includes a display transition area, and the display transition area is adjacent to the curved display area and is staggered from the pixel opening in the thickness direction of the display panel; in the display transition area, the thickness of the first organic encapsulation layer gradually decreases towards the direction close to the curved surface display area.
Optionally, in some embodiments of the present application, the display panel further includes: the light shielding layer is arranged on one side, away from the first organic packaging layer, of the second inorganic packaging layer, and openings are formed in positions corresponding to the sub-pixel units; each color resistance unit comprises at least three sub color resistance units with different colors, and the sub color resistance units are correspondingly arranged in the openings; a flat layer covering the light-shielding layer and the plurality of color resistance units; and each sub-color resistance unit has the same color as the sub-pixel unit arranged correspondingly.
Optionally, in some embodiments of the present application, a sum of thicknesses of the encapsulation layer and the flat layer located in the curved display area is the same as a sum of thicknesses of the encapsulation layer and the flat layer located in the flat display area; wherein the thickness of the flat layer in the curved display area is greater than the thickness of the flat layer in the flat display area.
Optionally, in some embodiments of the present application, an orthogonal projection of each sub color resistance unit on the display substrate covers the sub pixel unit disposed corresponding to the sub color resistance unit.
Optionally, in some embodiments of the present application, the materials of the pixel defining layer and the light shielding layer include a black organic material.
To sum up, the embodiment of the present application provides a display panel, which has a flat display area and a curved display area, the display panel includes: the display substrate comprises a plurality of pixel units which are arranged in the plane display area and the curved surface display area in an array mode, and each pixel unit comprises at least three sub-pixel units with different colors which are arranged at intervals; the packaging layer is arranged in the light emergent direction of the display substrate and comprises a first inorganic packaging layer, a first organic packaging layer and a second inorganic packaging layer which are sequentially stacked along the light emergent direction far away from the display substrate; wherein the thickness of the first organic encapsulation layer located in the curved display area is smaller than the thickness of the first organic encapsulation layer located in the planar display area. The brightness attenuation of the curved surface display area can be effectively slowed down, so that the brightness difference between the plane display area and the curved surface display area is reduced, and the display effect is improved. The plane display area comprises a display transition area, the display transition area is adjacent to the curved surface display area and is staggered with the pixel opening in the thickness direction of the display panel; the influence of brightness change on the display of the pixel unit can be reduced to the maximum extent, and the display effect is further improved.
In addition, because the thickness of the first organic packaging layer in the curved surface display area is smaller than that of the first organic packaging layer in the plane display area, in order to ensure that the sum of the thicknesses of the packaging layer and the flat layer in the curved surface display area is the same as the sum of the thicknesses of the packaging layer and the flat layer in the plane display area, the thickness of the second inorganic packaging layer or the flat layer in the curved surface display area is increased, so that the thickness uniformity of the packaging layer can be realized, the problem of luminance attenuation of the curved surface display area is relieved, meanwhile, the flatness of the display panel is ensured, and the display effect is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first schematic diagram illustrating a planar structure of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a second plane structure of the display panel in the embodiment of the present application;
FIG. 3 is a first schematic cross-sectional view of the display panel in the embodiment of the present application;
fig. 4 is a schematic cross-sectional structure diagram of the display panel in the embodiment of the present application.
Description of the main reference numerals:
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless otherwise stated, the use of directional terms such as "upper", "lower", "left" and "right" may refer to the actual use or operation of the device, may refer to the drawing direction in the drawings, and may refer to two opposite directions; while "inner" and "outer" are with respect to the outline of the device.
Specifically, referring to fig. 1 to 3, an embodiment of the present application provides a display panel 10 having a flat display area 101 and a curved display area 102 located around the flat display area 101. As shown in fig. 1, the display panel 10 may be a hyperboloid display panel; as shown in fig. 2, the display panel 10 may also be a four-curved display panel. As shown in fig. 3, the display panel 10 includes: a display substrate 100, including a plurality of pixel units 110 arranged in an array in the planar display area 101 and the curved display area 102, where each pixel unit 110 includes at least three sub-pixel units 111 of different colors arranged at intervals; the encapsulation layer 120 is disposed in the light-emitting direction of the display substrate 110, and includes a first inorganic encapsulation layer 121, a first organic encapsulation layer 122, and a second inorganic encapsulation layer 123, which are sequentially stacked along the light-emitting direction away from the display substrate 100; wherein the thickness of the first organic encapsulation layer 122 located in the curved display area 102 is smaller than the thickness of the first organic encapsulation layer 122 located in the flat display area 101. In the display process of the display panel 10, the influence of the thickness of the organic film layer on the brightness of the display panel is relatively large, and since the thickness of the first organic encapsulation layer 122 is relatively large compared with the thickness of other film layers in the display panel 10, reducing the thickness of the first organic encapsulation layer 122 can improve the display brightness, in this embodiment, the thickness of the first organic encapsulation layer 122 located in the curved surface display area 102 is reduced, so that the brightness of the curved surface display area 102 can be improved, the difference between the light-emitting angle of the curved surface display area 102 and the plane display area 101 is compensated by the increase of the brightness, the brightness attenuation problem of the curved surface display area 102 is reduced, and the effect of balanced display brightness is achieved.
In the present application, the materials of the first inorganic encapsulation layer 121 and the second inorganic encapsulation layer 123 include, but are not limited to, silicon nitride, silicon oxide, or silicon oxynitride; the material of the first organic encapsulation layer 122 includes, but is not limited to, polyacrylate.
In one embodiment, the thickness of the encapsulation layer 120 located in the curved display area 102 is the same as the thickness of the encapsulation layer 120 located in the flat display area 101; wherein the thickness of the second inorganic encapsulation layer 123 located in the curved display area 102 is greater than the thickness of the second inorganic encapsulation layer 123 located in the flat display area 101. Since the thickness of the first organic encapsulation layer 122 in the curved display area 102 is smaller than the thickness of the first organic encapsulation layer 122 in the flat display area 101, in order to ensure that the thicknesses of the encapsulation layers 120 are the same, the thickness of the second inorganic encapsulation layer 123 in the curved display area 102 is increased, so that the uniformity of the thickness of the encapsulation layers 120 can be realized, the problem of luminance attenuation of the curved display area 102 is alleviated, meanwhile, the flatness of the display panel 10 is ensured, and the display effect is improved.
In the present application, the thickness of the first organic encapsulation layer 122 located in the curved display region 102 is 1/3-5/6 of the thickness of the first organic encapsulation layer 122 located in the flat display region 101. That is to say, a certain ratio exists between the thickness of the first organic encapsulation layer 122 located in the curved surface display area 102 and the thickness of the first organic encapsulation layer 122 located in the planar display area 101, and within the range of the ratio, the luminance increase of the curved surface display area 102 can make up for the difference between the light-emitting angle of the curved surface display area 102 and the planar display area 101, so as to alleviate the luminance attenuation problem of the curved surface display area 102. In one embodiment, the thickness of the first organic encapsulation layer 122 located in the flat display area 101 ranges from 8 μm to 15 μm; wherein the thickness of the first organic encapsulation layer 122 located in the curved display area 102 is smaller than the thickness of the first organic encapsulation layer 122 located in the flat display area 101 by between 2 μm and 8 μm. Preferably, the thickness of the first organic encapsulation layer 122 located in the planar display region 101 is 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, or 14 μm; wherein the thickness of the first organic encapsulation layer 122 located within the curved display region 102 is 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, or 8 μm less than the thickness of the first organic encapsulation layer 122 located within the planar display region 101. For example: when the thickness of the first organic encapsulation layer 122 located in the flat display area 101 is 12 μm, the thickness of the first organic encapsulation layer 122 located in the curved display area 102 is 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, or 10 μm.
In the present application, the display substrate 100 further includes a substrate 130 and a pixel defining layer 140; the pixel defining layer 140 is disposed on the substrate base plate 130 and has a plurality of pixel openings 141; the sub-pixel units 111 are respectively disposed in the pixel openings 141, and the first inorganic encapsulation layer 121 covers the pixel defining layer 140 and the plurality of sub-pixel units 111 located in the pixel openings 141. The flat display region 101 includes a display transition region 103, the display transition region 103 is adjacent to the curved display region 102, and is staggered with the pixel opening 141 in the thickness direction of the display panel 10; in the display transition region 103, the thickness of the first organic encapsulation layer 122 gradually decreases toward the curved display region 102. That is, the thickness of the first organic encapsulation layer 122 is not abruptly reduced, but is uniformly reduced before the flat display region 101 is bent toward the curved display region 102. On one hand, the brightness difference between the flat display area 101 and the curved display area 102 is reduced; on the other hand, the brightness variation difference between the flat display area 101 and the curved display area 102 is reduced, that is, the boundary of the brightness difference is blurred, so that the effect of display brightness balance is achieved. In addition, since the display transition region 103 is disposed to be offset from the pixel opening 141 in the thickness direction of the display panel 10, the influence of the luminance change on the display of the pixel unit 110 can be minimized, and the display effect can be visually improved. It is understood that the sub-pixel units 111 are formed in the pixel openings 141 by evaporation or inkjet printing, and include a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit.
It is understood that the substrate base plate 130 includes: a substrate, a light shielding layer, a buffer layer, an active layer, a gate insulating layer, a gate electrode, an interlayer insulating layer, source/drain electrodes, a passivation layer, and the like. For example: specifically, the light shielding layer is disposed on the substrate, the buffer layer covers the light shielding layer and the substrate, the active layer is disposed on the buffer layer, the gate insulating layer is disposed on the active layer, the gate is disposed on the gate insulating layer, the interlayer insulating layer covers the gate and the active layer, the source/drain is connected to the active layer through a via hole in the interlayer insulating layer, and the passivation layer covers the source/drain and the interlayer insulating layer. The substrate can be a flexible substrate, a glass substrate or a flexible substrate, and the preparation materials of the flexible substrate include, but are not limited to, polyimide and polyethylene terephthalate. The shading layer can effectively reduce the influence of ambient light on the performance of each device in the thin film transistor. The buffer layer is used for heat preservation and is any one of a silicon nitride layer, a silicon oxide layer or an overlapped layer of silicon nitride and silicon oxide. The active layer is used for conducting carriers, and the preparation material of the active layer can be polycrystalline silicon, monocrystalline silicon or an oxide semiconductor. The gate insulating layer is any one of a silicon nitride layer, a silicon oxide layer, or an alternating stack of silicon nitride and silicon oxide. The preparation material of the grid electrode comprises at least one of molybdenum, aluminum, titanium, chromium and copper. The interlayer insulating layer is used for insulating the source/drain electrodes and the grid electrode from other conducting layers.
Specifically, referring to fig. 4, in an embodiment, the display panel 10 further includes: a light-shielding layer 150, a plurality of color resist units 160, and a planarization layer 170. The light-shielding layer 150 is disposed on a side of the second inorganic encapsulation layer 123 far from the first organic encapsulation layer 122, and an opening 151 is disposed at a position corresponding to each sub-pixel unit 111; each color resistance unit 160 comprises at least three sub-color resistance units 161 with different colors, which are arranged at intervals, and the sub-color resistance units 161 are correspondingly arranged in the openings 151; the flat layer 170 covers the light-shielding layer 150 and the plurality of color resistance units 160; wherein each of the sub-color-resisting units 161 has the same color as the sub-pixel unit 111 disposed corresponding thereto. The light-shielding layer 150 and the color resistance units 160 can replace a conventional polarizer, and are used for reducing the light reflected by the ambient light on the surface of the display panel 10 and the light generated by the pixel units 110. The color resistance unit 160 includes: the color filter comprises a red sub-color resistance unit, a green sub-color resistance unit and a blue sub-color resistance unit; the red sub-color resistance unit is arranged corresponding to the red sub-pixel unit, the green sub-color resistance unit is arranged corresponding to the green sub-pixel unit, and the blue sub-color resistance unit is arranged corresponding to the blue sub-pixel unit. That is, the red sub-color resistance unit is located above the red sub-pixel unit, the green sub-color resistance unit is located above the green sub-pixel unit, the blue sub-color resistance unit is located above the blue sub-pixel unit, and the light shielding layer 150 is located above the pixel definition layer 140, so that the contrast of the display panel 10 can be improved.
In one embodiment, the sum of the thicknesses of the encapsulation layer 120 and the flat layer 170 in the curved display area 102 is the same as the sum of the thicknesses of the encapsulation layer 120 and the flat layer 170 in the flat display area 101; wherein the thickness of the flat layer 170 located in the curved display area 102 is greater than the thickness of the flat layer 170 located in the flat display area 101. Since the thickness of the first organic encapsulation layer 122 in the curved display area 102 is smaller than the thickness of the first organic encapsulation layer 122 in the flat display area 101, in order to ensure that the sum of the thicknesses of the encapsulation layer 120 and the flat layer 170 in the curved display area 102 is the same as the sum of the thicknesses of the encapsulation layer 120 and the flat layer 170 in the flat display area 101, the thickness of the flat layer 170 in the curved display area 102 is increased, so that the uniformity of the thickness of the encapsulation layer 120 can be realized, the luminance attenuation problem of the curved display area 102 is alleviated, the flatness of the display panel 10 is ensured, and the display effect is improved.
In an embodiment, an orthogonal projection of each sub-color resistance unit 161 on the display substrate 100 covers the sub-pixel units 111 disposed corresponding thereto. That is, the area of the red sub-color resistance unit is larger than that of the red sub-pixel unit, the area of the green sub-color resistance unit is larger than that of the green sub-pixel unit, and the area of the blue sub-color resistance unit is larger than that of the blue sub-pixel unit. This arrangement makes it possible to increase the viewing angle of the display panel 10, and to reduce the luminance degradation of the red, green, and blue sub-pixel units, thereby increasing the transmittance thereof.
In the present application, the materials of the pixel defining layer 140 and the light shielding layer 150 include black organic materials, such as cellulose acetate, polyethylene terephthalate alcohol, polystyrene, polyether, polyimide, polycarbonate, epoxy resin, phenoxy resin, polyethersulfone, polyacrylate, etc., and then black particles, such as carbon black, oxides of copper, cobalt, manganese, chromium, titanium, etc., and composite oxide particles formed by the oxides. By disposing the pixel defining layer 140 in the display panel 10 to absorb the incident light entering the display panel 10, the display panel 10 has good contrast when displaying under strong ambient light, and the light output rate of the display panel 10 is not reduced.
Specifically, the display panel 10 of the present application can be applied to any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. It should be understood by those skilled in the art that other essential components of the display panel 10 are not described herein, and should not be construed as limiting the present application.
In summary, the embodiment of the present application provides a display panel 10 having a flat display area 101 and a curved display area 102, where the display panel 10 includes: a display substrate 100, including a plurality of pixel units 110 arranged in an array in the planar display area 101 and the curved display area 102, where each pixel unit 110 includes at least three sub-pixel units 111 of different colors arranged at intervals; the encapsulation layer 120 is disposed in the light-emitting direction of the display substrate 110, and includes a first inorganic encapsulation layer 121, a first organic encapsulation layer 122, and a second inorganic encapsulation layer 123, which are sequentially stacked along the light-emitting direction away from the display substrate 100; wherein the thickness of the first organic encapsulation layer 122 located in the curved display area 102 is smaller than the thickness of the first organic encapsulation layer 122 located in the flat display area 101. The brightness attenuation of the curved surface display area 102 can be effectively slowed down, so that the brightness difference between the plane display area 101 and the curved surface display area 102 is reduced, and the display effect is improved. The flat display region 101 includes a display transition region 103, the display transition region 103 is adjacent to the curved display region 102, and is staggered with the pixel opening 141 in the thickness direction of the display panel 10; the influence of the brightness change on the display of the pixel unit 110 can be reduced to the maximum extent, and the display effect is further improved.
In addition, since the thickness of the first organic encapsulation layer 122 located in the curved display area 102 is smaller than the thickness of the first organic encapsulation layer 122 located in the flat display area 101, in order to ensure that the sum of the thicknesses of the encapsulation layer 120 and the flat layer 170 located in the curved display area 102 is the same as the sum of the thicknesses of the encapsulation layer 120 and the flat layer 170 located in the flat display area 101, the thickness of the second inorganic encapsulation layer 123 or the flat layer 170 located in the curved display area 102 is increased, so that the thickness uniformity of the encapsulation layer 120 can be realized, the luminance attenuation problem of the curved display area 102 is alleviated, the flatness of the display panel 10 is ensured, and the display effect is improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The technical solutions provided by the embodiments of the present application are introduced in detail, and specific examples are applied in the description to explain the principles and embodiments of the present application, and the descriptions of the embodiments are only used to help understanding the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display panel having a flat display area and a curved display area located on a peripheral side of the flat display area, the display panel comprising:
the display substrate comprises a plurality of pixel units which are arranged in the plane display area and the curved surface display area in an array mode, and each pixel unit comprises at least three sub-pixel units with different colors which are arranged at intervals;
the packaging layer is arranged in the light emergent direction of the display substrate and comprises a first inorganic packaging layer, a first organic packaging layer and a second inorganic packaging layer which are sequentially stacked along the light emergent direction far away from the display substrate; wherein
The thickness of the first organic packaging layer positioned in the curved surface display area is smaller than that of the first organic packaging layer positioned in the plane display area.
2. The display panel of claim 1, wherein the thickness of the encapsulation layer located in the curved display area is the same as the thickness of the encapsulation layer located in the flat display area; wherein
The thickness of the second inorganic packaging layer in the curved surface display area is larger than that of the second inorganic packaging layer in the plane display area.
3. The display panel according to claim 1, wherein a thickness of the first organic encapsulation layer in the curved display region is 1/3 to 5/6 of a thickness of the first organic encapsulation layer in the flat display region.
4. The display panel according to claim 1, wherein the thickness of the first organic encapsulation layer located in the flat display region ranges from 8 μm to 15 μm; wherein
The thickness of the first organic packaging layer in the curved surface display area is smaller than that of the first organic packaging layer in the plane display area by between 2 and 8 microns.
5. The display panel of claim 1, wherein the display substrate further comprises:
a substrate base plate;
the pixel definition layer is arranged on the substrate and provided with a plurality of pixel openings; wherein
The sub-pixel units are respectively arranged in the pixel openings, and the first inorganic packaging layer covers the pixel defining layer and the plurality of sub-pixel units positioned in the pixel openings.
6. The display panel of claim 5, wherein the flat display region comprises a display transition region adjacent to the curved display region and offset from the pixel openings in a thickness direction of the display panel;
in the display transition area, the thickness of the first organic encapsulation layer gradually decreases towards the direction close to the curved surface display area.
7. The display panel of claim 5, wherein the display panel further comprises:
the light shielding layer is arranged on one side, away from the first organic packaging layer, of the second inorganic packaging layer, and openings are formed in positions corresponding to the sub-pixel units;
each color resistance unit comprises at least three sub color resistance units with different colors, and the sub color resistance units are correspondingly arranged in the openings;
a flat layer covering the light-shielding layer and the plurality of color resistance units; wherein
And each sub-color resistance unit has the same color as the sub-pixel unit correspondingly arranged.
8. The display panel according to claim 7, wherein a sum of thicknesses of the encapsulation layer and the flat layer in the curved display region is the same as a sum of thicknesses of the encapsulation layer and the flat layer in the flat display region; wherein
The thickness of the flat layer in the curved surface display area is larger than that of the flat layer in the plane display area.
9. The display panel of claim 7, wherein an orthographic projection of each sub-color resistance unit on the display substrate covers the sub-pixel units arranged corresponding to the sub-color resistance unit.
10. The display panel according to claim 7, wherein materials of the pixel defining layer and the light shielding layer include a black organic material.
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