CN113299625A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113299625A CN113299625A CN202110511601.9A CN202110511601A CN113299625A CN 113299625 A CN113299625 A CN 113299625A CN 202110511601 A CN202110511601 A CN 202110511601A CN 113299625 A CN113299625 A CN 113299625A
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- 238000005452 bending Methods 0.000 claims abstract description 35
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 description 6
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/50—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor for integrated circuit devices, e.g. power bus, number of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
-
- 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
- H10K59/40—OLEDs integrated with touch screens
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the application discloses a display panel and a display device, wherein the display panel comprises a bending display area and a plane display area, and the bending display area is arranged on two sides of the plane display area; the first pixel electrodes are distributed in the planar display area in an array mode; the second pixel electrodes are distributed in the bent display area in an array manner; the first pixel electrode size is smaller than the second pixel electrode size. The beneficial effects of the embodiment of the application are that the display panel and the display device increase the pixel opening of the bending display area and improve the current flow of the pixel electrode of the bending display area, thereby solving the problem of brightness attenuation in the bending display area and balancing the brightness of the bending display area and the plane display area.
Description
Technical Field
The application relates to the field of panels, in particular to a display panel and a display device.
Background
With the progress of the scientific and technical level, the living standard is continuously improved, the quality requirement of people on life is higher and higher, and the flagship products of various terminal brands are basically and completely used with one-time bent panels. Especially, the method has higher requirements on small-size products, such as mobile phones, flat plates, vehicle-mounted flexible products and the like. However, in the current edge curved surface display, the contrast between the edge and the middle non-bending area can be found, because of 90-degree Lami (dense), the brightness of the edge area is rapidly attenuated along with the angle, so that the edge of the screen is darker, and the visual effect is influenced; with the proposal of concepts such as 'waterfall screen', large-curvature bent products, four-curved-surface products and the like, the defect of the edge curve flexible screen becomes a problem to be solved urgently in the display industry.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can solve the technical problem that the edge brightness and the middle brightness of a curved display panel in the prior art are different.
The embodiment of the application provides a display panel, which comprises a bending display area and a plane display area, wherein the bending display area is arranged on two sides of the plane display area; the first pixel electrodes are distributed in the planar display area in an array mode; the second pixel electrodes are distributed in the bent display area in an array manner; the first pixel electrode size is smaller than the second pixel electrode size.
Optionally, in some embodiments of the present application, the display panel further includes a retaining wall, covering the first pixel electrode and the second pixel electrode, where the retaining wall is provided with a first pixel opening corresponding to the first pixel electrode, and the retaining wall is provided with a second pixel opening corresponding to the second pixel electrode; a first light emitting unit disposed in the first pixel opening and connected to the first pixel electrode; and the second light-emitting unit is arranged in the second pixel opening and is connected to the second pixel electrode.
Optionally, in some embodiments of the present application, the display panel further includes a cathode disposed on the first light emitting unit, the second light emitting unit, and the surface of the retaining wall.
Optionally, in some embodiments of the present application, the display panel further includes an encapsulation layer disposed on a side surface of the cathode away from the retaining wall; and the touch layer is arranged on one side of the packaging layer, which is far away from the cathode.
Optionally, in some embodiments of the present application, a current per unit time through the first pixel electrode is smaller than a current per unit time through the second pixel electrode.
Optionally, in some embodiments of the present application, a first direction is defined, which is parallel to the two side extension directions of the planar display area; defining a second direction, perpendicular to the first direction and parallel to the planar display area; in the second direction, the first pixel electrode and the second pixel electrode are the same in size.
Optionally, in some embodiments of the present application, a ratio of a size of the second pixel electrode to a size of the first pixel electrode in the first direction is 1-2.
Optionally, in some embodiments of the present application, after the bending of the bending display area, a projection of the second pixel electrode on a horizontal plane is the same as a projection of the first pixel electrode on the horizontal plane.
Optionally, in some embodiments of the present application, in the first direction, a ratio of the second pixel opening size to the first pixel opening size is 1-2.
Correspondingly, the embodiment of the application also provides a display device which comprises the display panel.
The display panel and the display device increase the size of the pixel electrode of the bending display area, so that the problem of brightness attenuation in the bending display area is solved, and the brightness of the bending display area and the brightness of the plane display area are balanced.
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 schematic structural diagram of a display device provided in an embodiment of the present application;
FIG. 2 is a plan view of a display panel provided in an embodiment of the present application;
FIG. 3 is a side view of a display panel provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel provided in an embodiment of the present application;
description of reference numerals:
a display panel 100; a first pixel electrode 110;
a second pixel electrode 120; a retaining wall 130;
a first light emitting unit 140; a second light emitting unit 150;
a cathode 160; an encapsulation layer 170;
a touch layer 180; a flat display area 101;
a bending display area 102; a first pixel opening 131;
the second pixel opening 132.
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 indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a display panel and a display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Examples
As shown in fig. 1 and fig. 4, in the present embodiment, the display device of the invention includes a display panel 100, and the display panel 100 includes a first pixel electrode 110, a second pixel electrode 120, a dam 130, a first light emitting unit 140, a second light emitting unit 150, a cathode 160, an encapsulation layer 170, and a touch layer 180.
In this embodiment, the display panel 100 of the present invention is a curved-surface full-face screen panel, and includes a planar display area 101 and a bent display area 102, wherein the bent display area 102 is disposed on two sides of the planar display area 101, and the bent display area 102 is bent toward the back of the display panel 100, so as to implement the 3D curved-surface display function of the display panel 100.
As shown in fig. 2, in the present embodiment, the transverse direction of the display panel 100 is defined as a first direction a, and the bent display regions 102 are disposed on two sides of the planar display region 101 in the first direction a. The longitudinal direction of the display panel 100 is defined as a second direction B, which is perpendicular to the first direction a.
The first pixel electrodes 110 are distributed in the flat display area 101, and the first pixel electrodes 110 are used for transmitting electrical signals to the first light emitting units 140.
The second pixel electrodes 120 are distributed in the bent display region 102 in an array, and the second pixel electrodes 120 are used for transmitting electrical signals to the second light emitting units 150.
As shown in fig. 3, in the first direction a, the size of the second pixel electrode 120 is larger than the size of the first pixel electrode 110, and in this embodiment, the ratio of the size of the second pixel electrode 120 in the first direction a to the size of the first pixel electrode 110 in the first direction a is 1-2. In other preferred embodiments of the present invention, a ratio of a dimension of the second pixel electrode 120 in the first direction a to a dimension of the first pixel electrode 110 in the first direction a is determined according to a bending degree of the bending display area 102, and specifically, after the bending display area 102 is completely bent, a projection of the second pixel electrode 120 on a horizontal plane is the same as a projection of the first pixel electrode 110 on the horizontal plane. Since the size of the second pixel electrode 120 is larger than that of the first pixel electrode 110, when the pixel electrode transmits an electrical signal, the current transmitted by the second pixel electrode 120 is larger than that transmitted by the first pixel electrode 110 in unit time, so as to make up for the problem of area brightness attenuation caused by bending the bending display area 102, and make the brightness areas of the bending display area 102 and the flat display area 101 consistent.
The retaining walls 130 are distributed in the flat display area 101 and the bending display area 102 in an array manner, the retaining walls 130 cover the first pixel electrodes 110 and the second pixel electrodes 120, the retaining walls 130 are provided with first pixel openings 131 corresponding to the first pixel electrodes 110, the retaining walls 130 are provided with second pixel openings 132 corresponding to the second pixel electrodes 120, and the second pixel openings 132 are also larger than the first pixel openings 131 in the first direction a because the second pixel electrodes 120 are larger than the first pixel electrodes 110 in the first direction a in size. The bottom surface of the first pixel opening 131 is smaller than the upper surface of the first pixel electrode 110, and the bottom surface of the second pixel opening 132 is smaller than the upper surface of the second pixel electrode 120, that is, the edge of the first pixel electrode 110 and the edge of the second pixel electrode 120 are covered by the retaining wall 130, so as to avoid the technical problem of poor contact at the edge of the first pixel electrode 110 and the edge of the second pixel electrode 120.
The first light emitting unit 140 is correspondingly disposed above the first pixel electrode 110, covers an inner wall of the first pixel opening 131, and is connected to the first pixel electrode 110, and an electrical signal transmitted by the first pixel electrode 110 passes through the first light emitting unit 140 to excite the first light emitting unit 140 to emit light.
The second light emitting unit 150 is correspondingly disposed above the second pixel electrode 120, covers an inner wall of the second pixel opening 132, and is connected to the second pixel electrode 120, and an electrical signal transmitted by the second pixel electrode 120 passes through the second light emitting unit 150 to excite the second light emitting unit 150 to emit light.
Since the bending display region 102 has a bending effect, the viewing angle of the bending display region 102 is much larger than that of the flat display region 101, for human eyes, the brightness of the flat display region 101 is attenuated at a small angle, and the bending display region 102 is attenuated at a large angle, so in order to balance the brightness and the display image of the bending display region 102 and the flat display region 101, in this embodiment, the laying area of the second light emitting unit 150 is larger than that of the first light emitting unit 140, and since the bending display regions 102 are disposed at two ends of the flat display region 101 in the first direction, the size of the second light emitting unit 150 in the first direction a is larger than that of the second light emitting unit 150 in the first direction a. When the bending display area 102 is completely bent, the projection of the second light emitting unit 150 on the horizontal plane is the same as the projection of the first light emitting unit 140 on the horizontal plane. Therefore, when the human eyes look at the display panel 100, the color and brightness areas of the flat display area 101 and the bent display area 102 are consistent, and the sensory experience is improved.
The cathode 160 is disposed on the upper surfaces of the first light emitting unit 140, the second light emitting unit 150 and the retaining wall 130, the cathode 160 is disposed on a surface of the first light emitting unit 140 away from the first pixel electrode 110 and a surface of the second light emitting unit 150 away from the second pixel electrode 120, the first pixel electrode 110 and the second pixel electrode 120 are configured to provide electrons to the first light emitting unit 140 and the second light emitting unit 150, and the cathode 160 is configured to provide holes to the first light emitting unit 140 and the second light emitting unit 150, so as to excite the first light emitting unit 140 and the second light emitting unit 150 to emit light.
The encapsulation layer 170 is disposed on a side surface of the cathode 160 away from the retaining wall 130, and the encapsulation layer 170 is used for avoiding external water and oxygen invasion, so as to effectively prolong the service life of the display panel 100.
The touch layer 180 is disposed on a surface of the encapsulation layer 170 away from the cathode 160, and the touch layer 180 is used for implementing a touch function of the display panel 100.
The beneficial effects of the embodiment of the application are that the display panel and the display device increase the pixel opening of the bending display area and improve the current flow of the pixel electrode of the bending display area, thereby solving the problem of brightness attenuation in the bending display area and balancing the brightness of the bending display area and the plane display area.
The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, 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 application.
Claims (10)
1. The display panel is characterized by comprising a bending display area and a plane display area, wherein the bending display area is arranged on two sides of the plane display area;
the first pixel electrodes are distributed in the planar display area in an array mode;
the second pixel electrodes are distributed in the bent display area in an array manner;
the first pixel electrode size is smaller than the second pixel electrode size.
2. The display panel according to claim 1, further comprising
The retaining wall covers the first pixel electrode and the second pixel electrode, a first pixel opening is formed in the retaining wall corresponding to the first pixel electrode, and a second pixel opening is formed in the retaining wall corresponding to the second pixel electrode;
a first light emitting unit disposed in the first pixel opening and connected to the first pixel electrode;
and the second light-emitting unit is arranged in the second pixel opening and is connected to the second pixel electrode.
3. The display panel according to claim 2, further comprising
And the cathode is arranged on the surfaces of the first light-emitting unit, the second light-emitting unit and the retaining wall.
4. The display panel according to claim 3, further comprising
The packaging layer is arranged on the surface of one side of the cathode, which is far away from the retaining wall; and
and the touch layer is arranged on one side of the packaging layer, which is far away from the cathode.
5. The display panel according to claim 1,
the current passing through the first pixel electrode per unit time is smaller than the current passing through the second pixel electrode.
6. The display panel according to claim 1,
defining a first direction parallel to the extending directions of the two sides of the plane display area;
defining a second direction, perpendicular to the first direction and parallel to the planar display area;
in the second direction, the first pixel electrode and the second pixel electrode are the same in size.
7. The display panel according to claim 6,
in the first direction, the size ratio of the second pixel electrode to the first pixel electrode is 1-2.
8. The display panel according to claim 1,
after the bent display area is bent, the projection of the second pixel electrode on the horizontal plane is the same as the projection of the first pixel electrode on the horizontal plane.
9. The display panel according to claim 2,
in the first direction, the ratio of the size of the second pixel opening to the size of the first pixel opening is 1-2.
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 |
|---|---|---|---|
| CN202110511601.9A CN113299625A (en) | 2021-05-11 | 2021-05-11 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511601.9A CN113299625A (en) | 2021-05-11 | 2021-05-11 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN113299625A true CN113299625A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110511601.9A Pending CN113299625A (en) | 2021-05-11 | 2021-05-11 | Display panel and display device |
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| Country | Link |
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| CN (1) | CN113299625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883379A (en) * | 2022-07-11 | 2022-08-09 | 惠科股份有限公司 | Display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140312319A1 (en) * | 2013-04-17 | 2014-10-23 | Samsung Display Co., Ltd. | Organic light emitting diode display |
| CN104124261A (en) * | 2013-04-29 | 2014-10-29 | 三星显示有限公司 | Display panel |
| US20170170200A1 (en) * | 2015-12-11 | 2017-06-15 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| CN108735790A (en) * | 2018-05-30 | 2018-11-02 | 武汉天马微电子有限公司 | Display panel, display device and pixel driving method |
| CN109904204A (en) * | 2019-03-15 | 2019-06-18 | 武汉天马微电子有限公司 | Flexible display panel and display device |
-
2021
- 2021-05-11 CN CN202110511601.9A patent/CN113299625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140312319A1 (en) * | 2013-04-17 | 2014-10-23 | Samsung Display Co., Ltd. | Organic light emitting diode display |
| CN104124261A (en) * | 2013-04-29 | 2014-10-29 | 三星显示有限公司 | Display panel |
| US20170170200A1 (en) * | 2015-12-11 | 2017-06-15 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| CN108735790A (en) * | 2018-05-30 | 2018-11-02 | 武汉天马微电子有限公司 | Display panel, display device and pixel driving method |
| CN109904204A (en) * | 2019-03-15 | 2019-06-18 | 武汉天马微电子有限公司 | Flexible display panel and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883379A (en) * | 2022-07-11 | 2022-08-09 | 惠科股份有限公司 | Display panel and display device |
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