CN113517318A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113517318A CN113517318A CN202110366174.XA CN202110366174A CN113517318A CN 113517318 A CN113517318 A CN 113517318A CN 202110366174 A CN202110366174 A CN 202110366174A CN 113517318 A CN113517318 A CN 113517318A
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- pixel
- bending area
- display panel
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- liquid crystal
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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
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
-
- 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
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- 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
Abstract
The application discloses a display panel and a display device. The display panel comprises a non-bending area and at least one bending area positioned outside the non-bending area, the bending area and the non-bending area comprise a liquid crystal layer, a plurality of support columns are arranged in the liquid crystal layer, and the support column density of the bending area is smaller than that of the non-bending area. The display panel sets the support column density of the bending area to be smaller than that of the non-bending area, so that the bulges of the first inorganic layer in the bending area towards one side of the organic layer are reduced, and the probability of breakage of the packaging film layer when the bending area is bent is reduced. In addition, the position of the first pixel column which is in the non-bending area and is closest to the junction of the bending area and the non-bending area is provided with the supporting columns, so that the number of the supporting columns in the bending area can be further reduced.
Description
Technical Field
The present invention relates to a display panel, and more particularly, to a display panel and a display device.
Background
The display device mainly includes a Liquid Crystal Display (LCD), a Plasma Display Panel (PDP), an Organic Light Emitting Diode (OLED), and an Active Matrix Organic Light Emitting Diode (AMOLED), and has a wide application space in vehicle-mounted, mobile phone, tablet, computer and television products.
When the reliability of the OLED display panel is tested, the reliability of the high-temperature high-humidity project is abnormal. After the test is finished, small black spots, which can be called black spots, are often formed in the surface of the OLED display panel.
The OLED material can not emit light even due to the reduction of the luminous efficiency of part of the OLED material, so that small black spots are generated. The reason why the OLED material in the pixel cannot emit light is analyzed as follows: the inorganic film on the encapsulation layer is broken, resulting in water vapor intrusion.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which effectively solve the problem that the luminous efficiency of partial pixels of the existing OLED display panel is reduced after high-temperature and high-humidity project tests.
According to an aspect of the present invention, there is provided a display panel including: including non-bending region and being located a bending region of non-bending region outside, bending region with non-bending region all includes the liquid crystal layer set up a plurality of support columns in the liquid crystal layer, wherein the support column density in bending region is less than the support column density in non-bending region.
Further, the liquid crystal layer includes a plurality of first pixel columns and a plurality of second pixel columns; wherein the first pixel columns and the second pixel columns are alternately arranged.
Furthermore, a support column is arranged in the non-bending area and at a position of a first pixel column closest to a junction of the bending area and the non-bending area.
Further, the first pixel column includes a plurality of first pixels and a plurality of second pixels; the second pixel column includes a plurality of third pixels; wherein each of the first pixels and each of the second pixels are alternately disposed.
Further, the supporting columns are arranged on a part of the first pixel columns in the plurality of first pixel columns.
Further, the support column is located between the first pixel and the second pixel.
Further, the display panel further includes: a substrate; the array substrate is arranged on the substrate; a pixel defining layer; the array substrate is arranged on the substrate; wherein the support posts are disposed on the pixel definition layer.
Further, the display panel further includes: the liquid crystal layer is arranged on the substrate; a first inorganic layer disposed on the liquid crystal layer; an organic layer disposed on the first inorganic layer; a second inorganic layer disposed on the organic layer; and the first inorganic layer in the area of the support pillar is provided with a plurality of bulges facing to one side of the organic layer.
Further, the support column density of the bending area is zero.
According to another aspect of the present invention, there is provided a display device including the display panel according to any one of the embodiments of the present invention.
According to the display panel, the density of the support columns in the bending area is set to be smaller than that of the support columns in the non-bending area, so that the bulges of the first inorganic layer in the bending area towards one side of the organic layer are reduced, and the probability of breakage of the packaging film layer when the bending area is bent is reduced. In addition, the position of the first pixel column which is in the non-bending area and is closest to the junction of the bending area and the non-bending area is provided with the supporting columns, so that the number of the supporting columns in the bending area can be further reduced.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a display panel according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a display device according to a third embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present invention. The display panel includes: a non-bending region 200 and at least one bending region located outside the non-bending region 200.
The bending region and the non-bending region 200 both include a liquid crystal layer 70, and a plurality of support pillars 10 are disposed in the liquid crystal layer 70, wherein the density of the support pillars 10 in the bending region is less than the density of the support pillars 10 in the non-bending region 200. In other words, the number of support columns 10 in the bending region is smaller than that of support columns in the non-bending region 200.
The liquid crystal layer 70 includes a plurality of first pixel columns 101 and a plurality of second pixel columns 102, wherein the first pixel columns 101 and the second pixel columns 102 are alternately arranged, but not limited thereto, and in other embodiments, a third pixel column 103 may be further included as needed.
The first pixel column 101 includes a plurality of first pixels 20 and a plurality of second pixels 40, and the second pixel column 102 includes a plurality of third pixels 30, wherein each of the first pixels 20 and each of the second pixels 40 are alternately disposed. In this embodiment, the first pixel is a red pixel, the second pixel is a green pixel, and the third pixel is a blue pixel. But not limited thereto, in other embodiments, the corresponding setting may be performed according to specific needs.
In this embodiment, the supporting pillars 10 are disposed on a portion of the first pixel rows 101 in the plurality of first pixel rows 101, that is, the supporting pillars 10 are disposed at two ends of the bending region, so that the density of the supporting pillars 10 in the bending region can be reduced to the maximum.
In the present embodiment, the supporting pillar 10 is located between the first pixel 20 and the second pixel 40. Since the first pixel 20 and the second pixel 40 in the first pixel column 101 have a large area, the gap between the first pixel 20 and the second pixel 40 is small (the gap means that the distance between the first pixel 20 and the second pixel 40 arranged in a row, which is arranged in a horizontal direction, is small), and thus the supporting post 10 cannot be provided. And the distance between the third pixels 30 arranged laterally and the third pixels 30 is larger. In other embodiments, the support posts 10 may also be otherwise arranged as desired.
Referring to fig. 2 in combination, the display panel further includes: the liquid crystal display device includes a substrate 50, an array substrate 60, a pixel defining layer 71, a liquid crystal layer 70, a first inorganic layer 80, an organic layer 90, and a second inorganic layer 91.
The array substrate 60 is disposed on the substrate 50, the pixel definition layer 71 is disposed on the array substrate 60, the liquid crystal layer 70 is disposed on the substrate 50, the first inorganic layer 80 is disposed on the liquid crystal layer 70, the organic layer 90 is disposed on the first inorganic layer 80, and the second inorganic layer 91 is disposed on the organic layer 90. The array substrate 60 is used for providing an electric field to the liquid crystal layer, the liquid crystal layer 70 is used for storing liquid crystal, and the pixel defining layer 71 is used for defining the size of an opening area of the display panel. The first inorganic layer, the organic layer and the second inorganic layer form a packaging layer for isolating water and oxygen.
In this embodiment, the supporting pillars 10 are disposed on the pixel defining layer 71, and the first inorganic layer 80 in the region of the supporting pillars 10 has a plurality of protrusions 81 facing the organic layer 90. Since the protrusion 81 faces the organic layer 90, the inside of the organic layer 90 is protruded, and when the bending region is bent, the stress is different between the protruded region and the normal region, and the protruded region is more likely to be broken. Therefore, the situation that the bending area is broken can be improved by reducing the density of the support pillars in the non-bending area.
The first embodiment has the advantage that since the density of the support pillars in the bending region is less than that of the support pillars in the non-bending region, the protrusions of the first inorganic layer facing the organic layer in the bending region are reduced, so that the occurrence of fracture of the encapsulation film layer when the bending region is bent is reduced. On the other hand, a support column is arranged in the non-bending area and at the position of the first pixel column closest to the junction of the bending area and the non-bending area, so that the arrangement of the support column in the bending area can be further reduced.
Fig. 3 is a schematic structural diagram of a display panel according to a second embodiment of the present invention. The display panel includes: a non-bending region 200 and at least one bending region located outside the non-bending region 200.
The bending region and the non-bending region 200 both include a liquid crystal layer 70, and a plurality of support pillars 10 are disposed in the liquid crystal layer 70, wherein the density of the support pillars 10 in the bending region is less than the density of the support pillars 10 in the non-bending region 200.
The liquid crystal layer 70 includes a plurality of first pixel columns 101 and a plurality of second pixel columns 102, wherein the first pixel columns 101 and the second pixel columns 102 are alternately arranged, but not limited thereto, and in other embodiments, a third pixel column 103 may be further included as needed.
The first pixel column 101 includes a plurality of first pixels 20 and a plurality of second pixels 40, and the second pixel column 102 includes a plurality of third pixels 30, wherein each of the first pixels 20 and each of the second pixels 40 are alternately disposed. In this embodiment, the first pixel is a red pixel, the second pixel is a green pixel, and the third pixel is a blue pixel. But not limited thereto, in other embodiments, the corresponding setting may be performed according to specific needs.
In this embodiment, the supporting pillars 10 are disposed on a portion of the first pixel rows 101 in the plurality of first pixel rows 101, that is, the supporting pillars 10 are disposed at two ends of the bending region, so that the density of the supporting pillars 10 in the bending region can be reduced to the maximum.
In the present embodiment, the supporting pillar 10 is located between the first pixel 20 and the second pixel 40. Since the first pixel 20 and the second pixel 40 in the first pixel column 101 have a large area, the gap between the first pixel 20 and the second pixel 40 is small (the gap means that the distance between the first pixel 20 and the second pixel 40 arranged in a row, which is arranged in a horizontal direction, is small), and thus the supporting post 10 cannot be provided. And the distance between the third pixels 30 arranged laterally and the third pixels 30 is larger. Of course in other embodiments the support post 10 may be otherwise arranged as desired.
Referring to fig. 2 in combination, the display panel further includes: the liquid crystal display device includes a substrate 50, an array substrate 60, a pixel defining layer 71, a liquid crystal layer 70, a first inorganic layer 80, an organic layer 90, and a second inorganic layer 91.
The array substrate 60 is disposed on the substrate 50, the pixel definition layer 71 is disposed on the array substrate 60, the liquid crystal layer 70 is disposed on the substrate 50, the first inorganic layer 80 is disposed on the liquid crystal layer 70, the organic layer 90 is disposed on the first inorganic layer 80, and the second inorganic layer 91 is disposed on the organic layer 90. The array substrate 60 is used for providing an electric field to the liquid crystal layer, the liquid crystal layer 70 is used for storing liquid crystal, and the pixel defining layer 71 is used for defining the size of an opening area of the display panel. The first inorganic layer, the organic layer and the second inorganic layer form a packaging layer for isolating water and oxygen.
In this embodiment, the supporting pillars 10 are disposed on the pixel defining layer 71, and the first inorganic layer 80 in the region of the supporting pillars 10 has a plurality of protrusions 81 facing the organic layer 90. Since the protrusion 81 faces the organic layer 90, the inside of the organic layer is protruded, and when the bending region is bent, the stress is different between the protruded region and the normal region, and the protruded region is more likely to be broken. Therefore, the situation that the bending area is broken can be improved by reducing the density of the support pillars in the non-bending area. Compared with the first embodiment, the density of the supporting columns 10 in the bending region of the second embodiment is zero, that is, the bending region is not provided with the supporting columns 10, so that the reliability of the second embodiment relative to the first embodiment is better.
The second embodiment has the advantage that the density of the support pillars in the bending region is less than that of the support pillars in the non-bending region, so that the protrusion of the first inorganic layer in the bending region towards one side of the organic layer disappears, and the situation that the encapsulation film layer is broken when the bending region is bent is reduced. On the other hand, a support column is arranged in the non-bending area and at the position of the first pixel column closest to the junction of the bending area and the non-bending area, so that the arrangement of the support column in the bending area can be further reduced.
As shown in fig. 4, which is a schematic structural diagram of a display device according to a third embodiment of the present invention, the display device 2000 includes the display panel 1000 according to the third embodiment. The display device 2000 may be: 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, a navigator and the like.
When the display panel 1000 according to the above embodiment is adopted in the display device 2000 of the present embodiment, the display effect is better.
Of course, other conventional structures, such as a power supply unit, a display driving unit, and the like, may also be included in the display device 2000 of the present embodiment.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A display panel comprises a non-bending area and at least one bending area positioned outside the non-bending area,
the bending area and the non-bending area both comprise a liquid crystal layer, and a plurality of support columns are arranged in the liquid crystal layer, wherein the support column density of the bending area is smaller than that of the non-bending area.
2. The display panel according to claim 1, wherein the liquid crystal layer includes a plurality of first pixel columns and a plurality of second pixel columns;
wherein the first pixel columns and the second pixel columns are alternately arranged.
3. The display panel according to claim 2, wherein a support pillar is disposed in the non-bending region and at a position of a first pixel column closest to a boundary between the bending region and the non-bending region.
4. The display panel according to claim 2, wherein the first pixel column includes a plurality of first pixels and a plurality of second pixels; the second pixel column includes a plurality of third pixels; wherein each of the first pixels and each of the second pixels are alternately disposed.
5. The display panel according to claim 4, wherein the support columns are disposed in a part of the first pixel columns.
6. The display panel according to claim 4 or 5, wherein the support column is located between the first pixel and the second pixel.
7. The display panel according to claim 1, characterized in that the display panel further comprises:
a substrate;
the array substrate is arranged on the substrate;
a pixel defining layer; the array substrate is arranged on the substrate;
wherein the support posts are disposed on the pixel definition layer.
8. The display panel according to claim 7, characterized by further comprising:
the liquid crystal layer is arranged on the substrate;
a first inorganic layer disposed on the liquid crystal layer;
an organic layer disposed on the first inorganic layer;
a second inorganic layer disposed on the organic layer; and
the first inorganic layer in the area of the support pillars has a plurality of protrusions facing the organic layer.
9. The display panel of claim 1, wherein the support column density of the bending region is zero.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366174.XA CN113517318B (en) | 2021-04-06 | 2021-04-06 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366174.XA CN113517318B (en) | 2021-04-06 | 2021-04-06 | Display panel and display device |
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| CN113517318A true CN113517318A (en) | 2021-10-19 |
| CN113517318B CN113517318B (en) | 2022-08-23 |
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| CN105319789A (en) * | 2014-06-24 | 2016-02-10 | 乐金显示有限公司 | Curved liquid crystal display device |
| US20190011738A1 (en) * | 2017-07-06 | 2019-01-10 | HKC Corporation Limited | Curved display panel and display apparatus |
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| CN113517318B (en) | 2022-08-23 |
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