CN113178468B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113178468B CN113178468B CN202110398122.0A CN202110398122A CN113178468B CN 113178468 B CN113178468 B CN 113178468B CN 202110398122 A CN202110398122 A CN 202110398122A CN 113178468 B CN113178468 B CN 113178468B
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- 239000002131 composite material Substances 0.000 claims abstract description 37
- 239000010410 layer Substances 0.000 claims description 196
- 239000000758 substrate Substances 0.000 claims description 32
- 239000002346 layers by function Substances 0.000 claims description 30
- 238000002834 transmittance Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 abstract description 16
- 230000003245 working effect Effects 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 description 6
- 230000000295 complement effect Effects 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
Classifications
-
- 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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses display panel and display device, display panel include the basement, locate array composite layer, the array on the basement are located light emitting device on the array composite layer, display panel includes at least one light transmission district, the light transmission district is equipped with the colour compensation layer, ambient light passes through appear white light behind the light transmission district, can promote the working property of light sensor such as camera.
Description
Technical Field
The application relates to the field of display, in particular to a display panel and a display device.
Background
Organic light emitting display panels (OLED panels) have been widely used in people's lives, such as display screens of mobile phones, computers, and the like. Along with the development of display technology and the development requirements of people on the display technology, a high-screen-ratio and comprehensive-screen display and an application terminal thereof are developed gradually, and under-screen fingerprint and under-screen camera technologies have been proposed or developed, namely, a fingerprint identification module, a camera and other light sensors are arranged on the back surface of a display panel of the application terminal, and the area of the display panel provided with the camera can be used for displaying images and shooting through external environment light.
However, in the flexible OLED panel, the flexible substrate (PI, polyimide) is yellow, the light sensor such as the camera is disposed at the back of the light-transmitting area, and white ambient light is yellow after passing through the light-transmitting area, which distorts the shooting color of the camera and reduces the shooting quality of the camera.
Disclosure of Invention
The embodiment of the application provides a display panel and display device, sets up the colour compensation layer in display panel's light transmission district, and is further, sets up the colour compensation layer in the array composite layer on the basement, and the colour compensation layer makes external environment light present white light after passing through the light transmission district.
The embodiment of the application provides a display panel, including the basement, locate array composite layer, the array of locating on the basement locate light emitting device on the array composite layer, display panel includes at least one light transmission district, the light transmission district is equipped with the colour compensation layer, and ambient light passes through behind the light transmission district appear white light.
Optionally, in some embodiments of the present application, the color compensation layer is located on the array composite layer.
Optionally, in some embodiments of the present application, the array composite layer includes a transistor functional layer disposed between the substrate and the light emitting device, and a pixel defining layer disposed between adjacent light emitting devices, and the color compensation layer is disposed between the pixel defining layer and the transistor functional layer.
Optionally, in some embodiments of the present application, the array composite layer further includes a planarization layer disposed between the transistor functional layer and the pixel definition layer, and the color compensation layer is disposed between the transistor functional layer and the planarization layer, or the color compensation layer is disposed between the planarization layer and the pixel definition layer.
Optionally, in some embodiments of the present application, the array composite layer includes a transistor functional layer disposed between the substrate and the light emitting device, and a pixel defining layer disposed between adjacent light emitting devices, where the pixel defining layer is made of a material of the color compensation layer.
Optionally, in some embodiments of the present application, the array composite layer includes a transistor functional layer disposed between the substrate and the light emitting device, a pixel definition layer disposed between adjacent light emitting devices, and a planarization layer disposed between the transistor functional layer and the pixel definition layer, where the planarization layer is made of a material of the color compensation layer.
Optionally, in some embodiments of the present application, the array composite layer includes a transistor functional layer disposed between the substrate and the light emitting device, a pixel defining layer disposed between adjacent light emitting devices, and a planarization layer disposed between the transistor functional layer and the pixel defining layer, the planarization layer and the pixel defining layer being made of the material of the color compensation layer.
Optionally, in some embodiments of the present application, the color compensation layer is made of a color filter and a light blocking material.
Optionally, in some embodiments of the present application, the substrate has a transmittance Tr1 for visible light having a wavelength ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance Tr2 for visible light having a wavelength ranging from 570nm to 600nm, tr1< Tr2;
the color compensation layer has a transmittance of Tr3 for visible light having wavelengths ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance of Tr4 for visible light having wavelengths ranging from 570nm to 600nm, tr3> Tr4.
Correspondingly, the embodiment of the application also provides a display device, which comprises the display panel and the light sensor arranged corresponding to the light transmission area of the display panel.
In this embodiment of the present application, set up the colour compensation layer in display panel's light transmission district, further, set up the colour compensation layer in the array composite layer on the base, the colour compensation layer complements with the base to the transmissivity of yellow light for external environment light presents white light after passing through the light transmission district, can promote the working property of light sensor, for example promotes the shooting performance of camera.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic top view of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of a first display panel according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a second display panel according to an embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of a third display panel according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of a fourth display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic cross-sectional view of a fifth display panel according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the application provides a display panel and a display device. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.
Embodiment 1,
Referring to fig. 1, 2 and 3, an embodiment of a display panel 200 is provided, where the display panel 200 includes a substrate 11, an array composite layer disposed on the substrate 11, and a light emitting device 59 disposed on the array composite layer, and the display panel 200 includes at least one light-transmitting region 201, the light-transmitting region 201 is provided with a color compensation layer 191, and ambient light is white after passing through the light-transmitting region 201.
Specifically, as shown in fig. 1, the display panel 200 includes a light-transmitting area 201, where the light-transmitting area 201 is an area where light sensors are disposed, such as an under-screen camera area, and the normal display area 202 at least partially surrounds the light-transmitting area 201. At least the light-transmitting area 201 of the display panel 200 is provided with a color compensation layer 191, which still presents white light when the white ambient light reaches the light sensor through the light-transmitting area 201. The light sensor may be a camera, a fingerprint recognition module, etc.
In some embodiments, the array composite layer includes a color compensation layer 191.
Specifically, the light-transmitting region 201 is a region that transmits light entirely or includes light-transmitting units, and the light-transmitting units are distributed in the light-transmitting region 201, and the transmission path of the ambient light is the light-transmitting units.
Specifically, the display panel 200 includes a transmission path of ambient light, as shown in fig. 2 and 3, fig. 2 and 3 illustrate a cross-sectional structure of a light transmission region, and an incident path of ambient light may be a region H corresponding to the pixel defining layer 20 between adjacent light emitting devices 59, and when the light emitting devices 59 are opaque, the region H corresponding to the pixel defining layer 20 in fig. 2 and 3 is an incident path of ambient light. Fig. 2 and 3 illustrate only one light emitting device 59, and adjacent light emitting devices 59 are spaced apart by the pixel defining layer 20.
In some embodiments, the array composite layer includes a transistor functional layer disposed between the substrate 11 and the light emitting device 59, and a pixel definition layer 20 disposed between adjacent light emitting devices 59, with a color compensation layer 191 disposed between the pixel definition layer 20 and the transistor functional layer.
Specifically, as shown in fig. 2 and 3, the display panel includes an array composite layer, a light emitting device 59 disposed on the array composite layer, and an encapsulation layer 23 disposed on the light emitting device 59.
Specifically, the light emitting device 59 includes a first electrode 19 disposed on the array composite layer, a light emitting material layer 21 disposed on the first electrode 19, and a second electrode 22 disposed on the light emitting material layer 21, where the first electrode 19 may be an anode and the second electrode 22 may be a cathode.
Specifically, the array composite layer includes a transistor functional layer 100, and the transistor functional layer 100 includes a semiconductor layer 13 disposed on a buffer layer 12, a gate insulating layer 14 disposed on the semiconductor layer 13, a gate layer 15 disposed on the gate insulating layer 14, an interlayer insulating layer 16 disposed on the gate layer 15, and a source/drain layer 17 disposed on the interlayer insulating layer 16.
Specifically, the array composite layer may include a buffer layer 12 disposed on a substrate 11, a transistor functional layer 100 disposed on the buffer layer 12, and a pixel defining layer 20 disposed on the transistor functional layer 100.
Specifically, in some implementations, the array composite layer includes a color compensation layer 191. For example, as shown in fig. 2 and 3, a color compensation layer 191 may be disposed between the pixel definition layer 20 and the transistor functional layer 100.
In some embodiments, the array composite layer further includes a planarization layer 18 disposed between the transistor functional layer 100 and the pixel definition layer 20, as shown in fig. 3, the color compensation layer 191 is disposed between the transistor functional layer 100 and the planarization layer 18; alternatively, as shown in fig. 2, the color compensation layer 191 is disposed between the planarization layer 18 and the pixel definition layer 20.
In some embodiments, the color compensation layer 191 is made of filtered color resist.
In some embodiments, substrate 11 has a transmittance of Tr1 for visible light having wavelengths in the range of 380nm to 570nm and 570nm to 780nm, and a transmittance of Tr2 for visible light having wavelengths in the range of 570nm to 600nm, tr1< Tr2; the color compensation layer has a transmittance of Tr3 for visible light having wavelengths ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance of Tr4, tr3> Tr4 for visible light having wavelengths ranging from 570nm to 600 nm. Since the transmittance of the substrate 11 and the color compensation layer 191 at the yellow light portion are complementary, the white ambient light still appears as white light after passing through the light-transmitting region 201.
Although illustrated as including the semiconductor layer 13, the gate insulating layer 14 provided on the semiconductor layer 13, the gate layer 15 provided on the gate insulating layer 14, the interlayer insulating layer 16 provided on the gate layer 15, and the source/drain layer 17 provided on the interlayer insulating layer 16. However, the structure of the transistor functional layer 100 is not limited thereto, and the transistor functional layer 100 may have other structures, for example, the transistor functional layer 100 includes a gate layer, a gate insulating layer provided on the gate layer, a semiconductor layer provided on the gate insulating layer, and a source/drain layer provided on the semiconductor layer.
Embodiment II,
Referring to fig. 1 and 4, the present embodiment is the same as or similar to the first embodiment, and is not repeated, except that the pixel defining layer 20 is made of the material of the color compensating layer 191, i.e. the pixel defining layer 20 is used as the color compensating layer, and compared with the first embodiment, the production process and the film thickness can be reduced.
The display panel 200 includes a substrate 11, an array composite layer disposed on the substrate 11, and light emitting devices 59 disposed on the array composite layer, the display panel 200 includes at least one light-transmitting region 201, the light-transmitting region 201 is provided with a color compensation layer 191, and ambient light is white after passing through the light-transmitting region 201.
Specifically, the array composite layer includes a buffer layer 12 disposed on a substrate 11, a transistor functional layer 100 disposed on the buffer layer 12, and a pixel defining layer 20 disposed on the transistor functional layer 100.
In some embodiments, the array composite layer further includes a planarization layer 18 disposed between the transistor functional layer 100 and the pixel definition layer 20.
As shown in fig. 4, the pixel definition layer 20 uses the material of the color compensation layer 191.
In some embodiments, the color compensation layer 191 is made of a filter color resist, i.e., the pixel definition layer 20 is made of a filter color resist.
In some embodiments, the substrate has a transmittance Tr1 for visible light having wavelengths in the range of 380nm to 570nm and 570nm to 780nm, and a transmittance Tr2 for visible light having wavelengths in the range of 570nm to 600nm, tr1< Tr2; the color compensation layer has a transmittance of Tr3 for visible light having wavelengths ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance of Tr4, tr3> Tr4 for visible light having wavelengths ranging from 570nm to 600 nm. Since the transmittance of the substrate 11 and the color compensation layer 191 at the yellow light portion are complementary, the white ambient light still appears as white light after passing through the light-transmitting region 201.
Third embodiment,
Referring to fig. 1 and 5, the present embodiment is the same as or similar to the first embodiment, and is not repeated herein, except that the planarization layer 18 is made of the material of the color compensation layer 191, i.e. the planarization layer 18 is used as the color compensation layer.
The display panel 200 includes a substrate 11, an array composite layer disposed on the substrate 11, and light emitting devices 59 disposed on the array composite layer, the display panel 200 includes at least one light-transmitting region 201, the light-transmitting region 201 is provided with a color compensation layer 191, and ambient light is white after passing through the light-transmitting region 201.
Specifically, the array composite layer includes a buffer layer 12 disposed on a substrate 11, a transistor functional layer 100 disposed on the buffer layer 12, a planarization layer 18 disposed on the transistor functional layer 100, and a pixel defining layer 20 disposed on the planarization layer 18.
As shown in fig. 5, the flattening layer 18 uses the material of the color compensation layer 191, that is, the flattening layer 18 functions as a color compensation layer.
In some embodiments, the color compensation layer 191 is made of a filter color resist, i.e., the planarization layer 18 is made of a filter color resist.
In some embodiments, the substrate has a transmittance Tr1 for visible light having wavelengths in the range of 380nm to 570nm and 570nm to 780nm, and a transmittance Tr2 for visible light having wavelengths in the range of 570nm to 600nm, tr1< Tr2; the color compensation layer has a transmittance of Tr3 for visible light having wavelengths ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance of Tr4, tr3> Tr4 for visible light having wavelengths ranging from 570nm to 600 nm. Since the transmittance of the substrate 11 and the color compensation layer 191 at the yellow light portion are complementary, the white ambient light still appears as white light after passing through the light-transmitting region 201.
Fourth embodiment,
Referring to fig. 1 and 6, the present embodiment is the same as or similar to the first embodiment, and is not repeated herein, except that the planarization layer 18 and the pixel defining layer 20 are made of the material of the color compensation layer 191, i.e. the planarization layer 18 and the pixel defining layer 20 are used as the color compensation layer.
The display panel 200 includes a substrate 11, an array composite layer disposed on the substrate 11, and light emitting devices 59 disposed on the array composite layer, the display panel 200 includes at least one light-transmitting region 201, the light-transmitting region 201 is provided with a color compensation layer 191, and ambient light is white after passing through the light-transmitting region 201.
Specifically, the array composite layer includes a buffer layer 12 disposed on a substrate 11, a transistor functional layer 100 disposed on the buffer layer 12, a planarization layer 18 disposed on the transistor functional layer 100, and a pixel defining layer 20 disposed on the planarization layer 18.
As shown in fig. 6, the planarization layer 18 and the pixel defining layer 20 employ the material of the color compensation layer 191, i.e., the planarization layer 18 serves as a color compensation layer.
Specifically, the planarization layer 18 and the pixel defining layer 20 may be formed by an integral molding process.
Specifically, in the manufacturing process, a material of a color compensation layer is coated, and then a pattern of the planarization layer 18 and the pixel definition layer 20 is simultaneously formed through a half tone photomask process (half tone photomask process).
In some embodiments, the color compensation layer 191 is made of a filter color resist, i.e., the planarization layer 18 and the pixel definition layer 20 are made of a filter color resist.
In some embodiments, the substrate has a transmittance Tr1 for visible light having wavelengths in the range of 380nm to 570nm and 570nm to 780nm, and a transmittance Tr2 for visible light having wavelengths in the range of 570nm to 600nm, tr1< Tr2; the color compensation layer has a transmittance of Tr3 for visible light having wavelengths ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance of Tr4, tr3> Tr4 for visible light having wavelengths ranging from 570nm to 600 nm. Since the transmittance of the substrate 11 and the color compensation layer 191 at the yellow light portion are complementary, the white ambient light still appears as white light after passing through the light-transmitting region 201.
Fifth embodiment (V),
The embodiment of the application also provides a display device, which comprises the display panel and the light sensor arranged corresponding to the light transmission area 201 of the display panel. The light sensor may be a camera, a fingerprint identifier, or the like.
In the embodiment of the application, the display panel is provided with the color compensation layer, and the transmittance of the substrate 11 and the transmittance of the color compensation layer 191 at the yellow light portion are complementary, so that the white light environment light still appears as white light after passing through the light transmission area 201, and the working performance of the light sensor is improved, for example, the photographing quality of the under-screen camera is improved.
The foregoing has described in detail a display panel and a display device provided by embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing examples are provided to assist in understanding the methods and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (4)
1. The display panel is characterized by comprising a substrate, an array composite layer arranged on the substrate, and light-emitting devices arranged on the array composite layer in an array mode, wherein the display panel comprises at least one light-transmitting area, the light-transmitting area is provided with a color compensation layer, and ambient light presents white light after passing through the light-transmitting area;
wherein the color compensation layer is positioned on the array composite layer;
the array composite layer comprises a transistor functional layer arranged between the substrate and the light emitting device, a pixel definition layer arranged between adjacent light emitting devices and a flat layer arranged between the transistor functional layer and the pixel definition layer;
at least one of the pixel defining layer and the planarization layer uses a material of the color compensation layer.
2. The display panel of claim 1, wherein the color compensation layer is a color filter resistive material.
3. The display panel according to claim 2, wherein the substrate has a transmittance Tr1 for visible light having a wavelength ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance Tr2 for visible light having a wavelength ranging from 570nm to 600nm, tr1< Tr2;
the color compensation layer has a transmittance of Tr3 for visible light having wavelengths ranging from 380nm to 570nm and from 570nm to 780nm, and a transmittance of Tr4 for visible light having wavelengths ranging from 570nm to 600nm, tr3> Tr4.
4. A display device comprising the display panel according to any one of claims 1 to 3, and a light sensor provided corresponding to the light-transmitting region of the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398122.0A CN113178468B (en) | 2021-04-14 | 2021-04-14 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110398122.0A CN113178468B (en) | 2021-04-14 | 2021-04-14 | Display panel and display device |
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| Publication Number | Publication Date |
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| CN113178468A CN113178468A (en) | 2021-07-27 |
| CN113178468B true CN113178468B (en) | 2024-01-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107039597A (en) * | 2015-10-30 | 2017-08-11 | 乐金显示有限公司 | Transparent organic light-emitting display device |
| CN108231826A (en) * | 2016-12-22 | 2018-06-29 | 乐金显示有限公司 | Show equipment |
| CN109671744A (en) * | 2018-12-07 | 2019-04-23 | 上海天马有机发光显示技术有限公司 | A kind of organic electroluminescent display panel, its manufacturing method and display device |
| CN210628315U (en) * | 2019-12-18 | 2020-05-26 | 京东方科技集团股份有限公司 | Transparent display panel and display device |
-
2021
- 2021-04-14 CN CN202110398122.0A patent/CN113178468B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039597A (en) * | 2015-10-30 | 2017-08-11 | 乐金显示有限公司 | Transparent organic light-emitting display device |
| CN108231826A (en) * | 2016-12-22 | 2018-06-29 | 乐金显示有限公司 | Show equipment |
| CN109671744A (en) * | 2018-12-07 | 2019-04-23 | 上海天马有机发光显示技术有限公司 | A kind of organic electroluminescent display panel, its manufacturing method and display device |
| CN210628315U (en) * | 2019-12-18 | 2020-05-26 | 京东方科技集团股份有限公司 | Transparent display panel and display device |
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| CN113178468A (en) | 2021-07-27 |
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