CN110729412B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110729412B CN110729412B CN201910909866.7A CN201910909866A CN110729412B CN 110729412 B CN110729412 B CN 110729412B CN 201910909866 A CN201910909866 A CN 201910909866A CN 110729412 B CN110729412 B CN 110729412B
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- 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
- H10K50/85—Arrangements for extracting light from the devices
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- 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
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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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
- H10K59/40—OLEDs integrated with touch screens
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a display panel and a display device, wherein the panel comprises a light transmission area for penetrating external light, an external optical device is arranged corresponding to the light transmission area, a first polaroid is a metal wire grid polaroid, the first polaroid is positioned on one side of an organic light emitting layer, which faces away from the external optical device, and the first polaroid at least covers the light transmission area; the reflecting layer is positioned on one side of the first polaroid, which faces away from the external optical device, and at least covers the light transmitting area; the cover plate is arranged on one side, back to the external optical device, of the reflecting layer. The display panel of the application covers the setting in printing opacity district at least through reflector layer and metal wire grating polaroid, has improved incident light's transmissivity.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a display panel and a display device.
Background
In the existing concept of the under-screen camera, because light entering the camera penetrates through the whole OLED display panel, most of the light entering the camera is lost, and imaging of the camera is greatly influenced, the improvement of the integral transmittance of the OLED display panel becomes important, wherein the transmittance of the polarizer is only 38-48%, more than half of the light is absorbed, and the light transmittance is lower.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which aim to solve the technical problem that the light transmittance of the existing display panel is low.
The embodiment of the application provides a display panel, it includes a printing opacity district that is used for the external light of permeate, external optical device corresponds to the printing opacity district sets up, display panel includes:
an organic light emitting layer;
the first polaroid is a metal wire grid polaroid, is positioned on one side of the organic light-emitting layer, which faces away from the external optical device, and at least covers the light-transmitting area;
the reflecting layer is positioned on one side, back to the external optical device, of the first polarizer and at least covers the light transmitting area; and
the cover plate is arranged on one side, back to the external optical device, of the reflecting layer.
In the display panel of the present application, the reflective layer is a transflective film; the light transmitting surface of the reflecting layer is attached to the cover plate, and the reflecting surface of the reflecting layer faces the metal wire grid polarizer.
In the display panel of the present application, an orthogonal projection of the first polarizer on a plane where the organic light emitting layer is located covers an orthogonal projection of the organic light emitting layer on the plane where the organic light emitting layer is located.
In the display panel of the application, the display panel includes a second polarizer, the second polarizer is located on one side of the organic light emitting layer, which faces away from the external optical device, and an opening is formed in an area of the second polarizer, which corresponds to the light transmitting area;
the first polarizer is disposed in the opening.
In the display panel of the present application, an orthogonal projection of the reflective layer on a plane where the organic light emitting layer is located covers an orthogonal projection of the organic light emitting layer on a plane where the organic light emitting layer is located.
In the display panel of the application, the reflecting layer is correspondingly arranged on the light-transmitting area.
In the display panel of the application, the display panel comprises an encapsulation layer, a touch layer and optical cement;
the packaging layer is arranged on the organic light emitting layer, the first polarizer is arranged on the packaging layer, the touch layer is arranged on the packaging layer, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, and the cover plate is arranged on the reflecting layer.
In the display panel of the application, the display panel comprises an encapsulation layer, a touch layer and optical cement;
the first polarizer is arranged on the organic light emitting layer, the packaging layer is arranged on the first polarizer, the touch layer is arranged on the packaging layer, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, and the cover plate is arranged on the reflecting layer.
The present application also relates to a display device, which includes a display panel and an optical device, the display panel includes a light-transmitting area for penetrating external light, the optical device corresponds to the light-transmitting area, the display panel includes:
an organic light emitting layer;
the first polaroid is a metal wire grid polaroid, is positioned on one side of the organic light-emitting layer, which faces away from the external optical device, and at least covers the light-transmitting area;
the reflecting layer is positioned on one side, back to the external optical device, of the first polarizer and at least covers the light transmitting area; and
the cover plate is arranged on one side, back to the external optical device, of the reflecting layer.
In the display device of the present application, the reflective layer is a transflective film; the light transmitting surface of the reflecting layer is attached to the cover plate, and the reflecting surface of the reflecting layer faces the metal wire grid polarizer.
In the display device of the present application, an orthographic projection of the first polarizer on a plane where the organic light emitting layer is located covers an orthographic projection of the organic light emitting layer on a plane where the organic light emitting layer is located.
In the display panel of the application, the display panel includes a second polarizer, the second polarizer is located on one side of the organic light emitting layer, which faces away from the external optical device, and an opening is formed in an area of the second polarizer, which corresponds to the light transmitting area;
the first polarizer is disposed in the opening.
In the display device of the present application, an orthogonal projection of the reflective layer on a plane of the organic light emitting layer covers an orthogonal projection of the organic light emitting layer on a plane of the organic light emitting layer.
In the display device of the application, the reflecting layer is correspondingly arranged on the light-transmitting area.
In the display device of the application, the display panel comprises an encapsulation layer, a touch layer and optical cement;
the packaging layer is arranged on the organic light emitting layer, the first polarizer is arranged on the packaging layer, the touch layer is arranged on the packaging layer, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, and the cover plate is arranged on the reflecting layer.
In the display device of the application, the display panel comprises an encapsulation layer, a touch layer and optical cement;
the first polarizer is arranged on the organic light emitting layer, the packaging layer is arranged on the first polarizer, the touch layer is arranged on the packaging layer, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, and the cover plate is arranged on the reflecting layer.
Compared with the display panel in the prior art, the display panel at least covers the transparent area through the reflecting layer and the metal wire grid polarizer, so that the transmittance of incident light is improved; the technical problem that the light transmittance of an existing display panel is low is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the prior art of the present application, the drawings required for the embodiments are briefly described below. The drawings in the following description are only some embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a first embodiment of the present application;
FIG. 2 is a schematic structural diagram of a second embodiment of the present application;
fig. 3 is a schematic structural diagram of a third embodiment of the present application.
Detailed Description
Refer to the drawings wherein like reference numbers refer to like elements throughout. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a first embodiment of the present application. The display panel 100 of the first embodiment of the present application includes a light-transmitting region a for transmitting external light. The external optical device 20 is disposed corresponding to the light-transmitting region a. The display panel 100 includes a substrate 11, an organic light emitting layer 12, an encapsulation layer 13, a first polarizer 14, a touch layer 15, an optical adhesive 16, a reflective layer 17, and a cover plate 18.
The external optical device 20 may include a front camera, an infrared sensor, an infrared lens, a floodlight sensing element, an ambient light sensor, or a dot matrix projector, etc. Therefore, the lighting device is wide in application range, and can be used for lighting through the screen, so that the lighting effect of the optical device is good, and the use performance of the optical device is enhanced.
Specifically, the organic light emitting layer 12 is disposed on the substrate 11. The encapsulation layer 13 is disposed on the organic light emitting layer 12. The first polarizer 14 is disposed on the encapsulation layer 13. The touch layer 15 is disposed on the first polarizer 14. The optical adhesive 16 is disposed on the touch layer 15. A reflective layer 17 is disposed on the optical glue 16. A cover plate 18 is disposed on the reflective layer 17.
The first polarizer 14 is a wire grid polarizer. The first polarizer 14 is located on a side of the organic light emitting layer 12 facing away from the external optical device 200. The first polarizer 14 at least covers the transparent region a.
The reflective layer 17 is located on the side of the first polarizer 14 facing away from the external optical device 200. The reflective layer 17 covers at least the light-transmitting region a. The cover plate 18 is arranged on the side of the reflective layer 17 facing away from the external optical component 200.
In the first embodiment, when external light is incident, the light sequentially passes through the cover plate 18 and the reflective layer 17, and a portion of the light passes through the metal wire grid polarizer. A part of light is reflected to the reflective layer 17 in the metal wire grid polarizer, the reflective layer 17 reflects the light back to the wire grid polarizer, and the polarization state of the light is changed due to the second reflection, when the reflected light is incident to the metal wire grid polarizer again, a component perpendicular to the direction of the metal wire grid can pass through the metal wire grid polarizer without damage, and other components can be incident to the metal wire grid polarizer again after the third, fourth and nth reflection. Therefore, the transmittance of the external light passing through the cover plate and the metal wire grid polarizer is improved by repeating the steps.
Therefore, in the first embodiment, the reflection layer 17 and the metal wire grid polarizer 14 at least cover the transparent area a, so that the transmittance of the incident light in the transparent area a is improved.
In the display panel 100 of the first embodiment, the reflective layer 17 is a transflective film. Wherein the light-transmitting surface of the reflective layer 17 is bonded to the cover plate 18. The reflective surface of the reflective layer 17 faces the wire grid polarizer.
The orthographic projection of the first polarizer 14 on the plane of the organic light emitting layer 12 covers the orthographic projection of the organic light emitting layer 12 on the plane of the organic light emitting layer 12. That is, in the present first embodiment, the first polarizing plate 14 covers the entire encapsulation layer 13.
The orthographic projection of the reflective layer 17 on the plane of the organic light emitting layer 12 covers the orthographic projection of the organic light emitting layer 12 on the plane of the organic light emitting layer 12. That is, in the present first embodiment, the reflective layer 17 is attached to the entire cover plate 18.
The display panel 100 of the first embodiment integrates the reflective layer 17 and the first polarizer 14, and further improves the transmittance of the external light.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a second embodiment of the present application. In the display panel 200 of the second embodiment, the display panel 200 includes a substrate 21, an organic light emitting layer 22, an encapsulation layer 23, a first polarizer 24, a touch layer 25, an optical adhesive 26, a reflective layer 27, and a cover plate 28.
The second embodiment is different from the first embodiment in that: the display panel 200 includes a second polarizer 29. The second polarizer 29 is located on the side of the organic light-emitting layer 22 facing away from the external optical device 20. The second polarizer 29 has an opening 291 corresponding to the region of the transmissive region a. The first polarizer 24 is disposed within the opening 291.
The reflective layer 27 is correspondingly disposed on the light-transmitting area a.
In the second embodiment, the first polarizer 24 and the reflective layer 27 are disposed corresponding to the transparent region a, so that the material is saved.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a third embodiment of the present application. In the display panel 300 of the third embodiment, the display panel 300 includes a substrate 31, an organic light emitting layer 32, an encapsulation layer 33, a first polarizer 34, a touch layer 35, an optical adhesive 36, a reflective layer 37, and a cover plate 38.
The third embodiment is different from the first embodiment in that: the first polarizer 34 is disposed on the organic light emitting layer 32. The encapsulation layer 33 is disposed on the first polarizer 34. The touch layer 35 is disposed on the encapsulation layer 33. The optical adhesive 36 is disposed on the touch layer 35. A reflective layer 37 is disposed on the optical glue 36. The cover 38 is disposed on the reflective layer 37.
In addition, in some embodiments, the first polarizer may be disposed directly between any two of the films between the encapsulation layer and the reflective layer.
The present application also relates to a display device, which includes a display panel and an optical device, the display panel includes a light-transmitting area for penetrating external light, the optical device corresponds to the light-transmitting area, the display panel includes:
an organic light emitting layer;
the first polaroid is a metal wire grid polaroid, is positioned on one side of the organic light-emitting layer, which faces away from the external optical device, and at least covers the light-transmitting area;
the reflecting layer is positioned on one side, back to the external optical device, of the first polarizer and at least covers the light transmitting area; and
the cover plate is arranged on one side, back to the external optical device, of the reflecting layer.
In the display device of the present application, the reflective layer is a transflective film; the light transmitting surface of the reflecting layer is attached to the cover plate, and the reflecting surface of the reflecting layer faces the metal wire grid polarizer.
In the display device of the present application, an orthographic projection of the first polarizer on a plane where the organic light emitting layer is located covers an orthographic projection of the organic light emitting layer on the plane where the organic light emitting layer is located.
In the display panel of the application, the display panel includes a second polarizer, the second polarizer is located on one side of the organic light emitting layer, which faces away from the external optical device, and an opening is formed in an area of the second polarizer, which corresponds to the light transmitting area;
the first polarizer is disposed in the opening.
In the display device of the present application, an orthogonal projection of the reflective layer on a plane of the organic light emitting layer covers an orthogonal projection of the organic light emitting layer on a plane of the organic light emitting layer.
In the display device of the application, the reflecting layer is correspondingly arranged on the light-transmitting area.
In the display device of the application, the display panel comprises an encapsulation layer, a touch layer and optical cement;
the packaging layer is arranged on the organic light emitting layer, the first polarizer is arranged on the packaging layer, the touch layer is arranged on the packaging layer, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, and the cover plate is arranged on the reflecting layer.
In the display device of the application, the display panel comprises an encapsulation layer, a touch layer and optical cement;
the first polarizer is arranged on the organic light emitting layer, the packaging layer is arranged on the first polarizer, the touch layer is arranged on the packaging layer, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, and the cover plate is arranged on the reflecting layer.
Compared with the display panel in the prior art, the display panel at least covers the light transmission area through the reflecting layer and the metal wire grid polarizer, so that the transmittance of incident light rays is improved; the technical problem that the light transmittance of an existing display panel is low is solved.
As described above, it will be apparent to those skilled in the art that various other changes and modifications can be made based on the technical solution and concept of the present application, and all such changes and modifications shall fall within the scope of the appended claims.
Claims (4)
1. A display panel comprises a transparent region for penetrating external light, and an external optical device pair
Should the light-transmitting area set up, its characterized in that, display panel includes:
an organic light emitting layer;
the first polaroid is a metal wire polaroid, is positioned on one side of the organic light-emitting layer, which faces away from the external optical device, and at least covers the light-transmitting area;
a reflective layer on a side of the first polarizer facing away from the external optical device,
the reflecting layer at least covers the light transmitting area;
the cover plate is arranged on one side, back to the external optical device, of the reflecting layer;
the second polaroid is positioned on one side, back to the external optical device, of the organic light-emitting layer, and an opening is formed in the area, corresponding to the light-transmitting area, of the second polaroid; the first polarizer is arranged in the opening;
the first polarizer and the reflecting layer are correspondingly arranged on the light transmission area;
the display panel comprises an encapsulation layer, a touch layer and optical cement;
the packaging layer is arranged on the organic light emitting layer, the first polaroid is arranged on the packaging layer, the touch layer is arranged on the first polaroid, the optical adhesive is arranged on the touch layer, the reflecting layer is arranged on the optical adhesive, and the cover plate is arranged on the reflecting layer;
after the external light penetrates through the cover plate and the reflecting layer, one part of light passes through the metal linear polaroid, and the other part of light is reflected to the reflecting layer by the metal linear polaroid.
2. The display panel according to claim 1, wherein the reflective layer is a transflective film; the light transmitting surface of the reflecting layer is attached to the cover plate, and the reflecting surface of the reflecting layer faces the metal wire linear polarizer.
3. A display device, it includes a display panel and external optical device, the said display panel includes a light-transmitting area used for permeating the external light, the said optical device is correspondent to the said light-transmitting area setting, characterized by that, the said display panel includes:
an organic light emitting layer;
the first polaroid is a metal wire polaroid, is positioned on one side of the organic light-emitting layer, which faces away from the external optical device, and at least covers the light-transmitting area;
a reflective layer on a side of the first polarizer facing away from the external optical device,
the reflecting layer at least covers the light transmitting area;
the cover plate is arranged on one side, back to the external optical device, of the reflecting layer;
the second polaroid is positioned on one side, back to the external optical device, of the organic light-emitting layer, and an opening is formed in the area, corresponding to the light-transmitting area, of the second polaroid; the first polarizer is arranged in the opening;
the first polarizer and the reflecting layer are correspondingly arranged on the light transmitting area;
the display panel comprises a packaging layer, a touch layer and optical cement;
the packaging layer is arranged on the organic light emitting layer, the first polaroid is arranged on the packaging layer, the touch layer is arranged on the first polaroid, the optical cement is arranged on the touch layer, the reflecting layer is arranged on the optical cement, the cover plate is arranged on the reflecting layer, after external light penetrates through the cover plate and the reflecting layer, part of light penetrates through the metal wire line polaroid, and the other part of light is reflected to the reflecting layer on the metal wire line polaroid.
4. The display device according to claim 3, wherein the reflective layer is a transflective film; the light transmitting surface of the reflecting layer is attached to the cover plate, and the reflecting surface of the reflecting layer faces the metal wire linear polarizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909866.7A CN110729412B (en) | 2019-09-25 | 2019-09-25 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909866.7A CN110729412B (en) | 2019-09-25 | 2019-09-25 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN110729412A CN110729412A (en) | 2020-01-24 |
| CN110729412B true CN110729412B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910909866.7A Active CN110729412B (en) | 2019-09-25 | 2019-09-25 | Display panel and display device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017542B (en) * | 2020-08-27 | 2022-05-27 | 昆山国显光电有限公司 | Display module and display device |
| CN111988456A (en) * | 2020-08-28 | 2020-11-24 | Oppo广东移动通信有限公司 | Display screen assembly, electronic device and ambient light detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068044A (en) * | 2018-09-28 | 2018-12-21 | 武汉华星光电技术有限公司 | Optical module and display device |
| CN110021640A (en) * | 2018-01-08 | 2019-07-16 | 三星显示有限公司 | El light emitting device |
| CN110187427A (en) * | 2019-06-24 | 2019-08-30 | 昆山工研院新型平板显示技术中心有限公司 | A kind of preparation method of polaroid, electronic equipment and polaroid |
| CN110208957A (en) * | 2019-05-31 | 2019-09-06 | 京东方科技集团股份有限公司 | Organic light emitting display panel and electronic equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180085423A (en) * | 2017-01-18 | 2018-07-27 | 삼성디스플레이 주식회사 | Display device |
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2019
- 2019-09-25 CN CN201910909866.7A patent/CN110729412B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021640A (en) * | 2018-01-08 | 2019-07-16 | 三星显示有限公司 | El light emitting device |
| CN109068044A (en) * | 2018-09-28 | 2018-12-21 | 武汉华星光电技术有限公司 | Optical module and display device |
| CN110208957A (en) * | 2019-05-31 | 2019-09-06 | 京东方科技集团股份有限公司 | Organic light emitting display panel and electronic equipment |
| CN110187427A (en) * | 2019-06-24 | 2019-08-30 | 昆山工研院新型平板显示技术中心有限公司 | A kind of preparation method of polaroid, electronic equipment and polaroid |
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