CN117082909A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN117082909A
CN117082909A CN202311091636.7A CN202311091636A CN117082909A CN 117082909 A CN117082909 A CN 117082909A CN 202311091636 A CN202311091636 A CN 202311091636A CN 117082909 A CN117082909 A CN 117082909A
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CN
China
Prior art keywords
sub
pixel
light
pixels
layer
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Pending
Application number
CN202311091636.7A
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Chinese (zh)
Inventor
邵智猛
黄高坤
于天成
祁一歌
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Beijing BOE Technology Development Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Beijing BOE Technology Development Co Ltd
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Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd, Beijing BOE Technology Development Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN202311091636.7A priority Critical patent/CN117082909A/en
Publication of CN117082909A publication Critical patent/CN117082909A/en
Pending legal-status Critical Current

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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
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
    • 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
    • H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]
    • 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
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The application relates to a display panel and a display device. Wherein, the display panel includes: the light-emitting device comprises a substrate, a light-emitting layer and a light-filtering layer. The light-emitting layer is positioned between the substrate and the filter layer, and the filter layer is positioned on one side of the light-emitting layer away from the substrate. The light emitting layer includes pixels arranged in an array. Each of the pixels includes at least three sub-pixels. The filter layer comprises light shielding sheets arranged in an array. The front projection of the light shielding sheet on the light emitting layer is partially overlapped with the corresponding sub-pixel on one side of the sub-pixel, and the front projection of the light shielding sheet on the light emitting layer is alternately positioned on two opposite sides of the sub-pixel in each pixel according to the sequence of the pixels. According to the embodiment of the application, the look and feel of the displayed content can be improved while different contents are displayed in different directions through the same display panel.

Description

Display panel and display device
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Automobiles have gradually become part of people's lives as they continue to develop. Along with the progress of technology, the intellectualization of automobiles is also becoming more and more important. Among them, in-vehicle displays are also being used more and more, and higher demands are being made of in-vehicle displays. Organic Light Emitting Diode (OLED) displays are favored by people because of their rich color display and contrast, and are increasingly used in the automotive field.
However, the vehicle-mounted display device needs to meet the viewing requirements of the main driving side and the co-driving side at the same time, and the existing vehicle-mounted OLED display screen cannot well meet the viewing requirements of the main driving side and the co-driving side at the same time. Thus, there is a need for improvement.
Disclosure of Invention
According to a first aspect of an embodiment of the present application, there is provided a display panel including: a substrate, a light emitting layer and a filter layer;
the light-emitting layer is positioned between the substrate and the filter layer, and the filter layer is positioned on one side of the light-emitting layer away from the substrate;
the light-emitting layer comprises pixels arranged in an array; each pixel comprises at least three sub-pixels; the filter layer comprises light shielding sheets arranged in an array; the front projection of the light shielding sheet on the light emitting layer is partially overlapped with the corresponding sub-pixel on one side of the sub-pixel, and the front projection of the light shielding sheet on the light emitting layer is alternately positioned on two opposite sides of the sub-pixel in each pixel according to the sequence of the pixels.
In some embodiments, the pixels include opposite first and second sides, and the projection of the light shielding sheet on the light emitting layer is sequentially and alternately positioned on the first and second sides of the sub-pixels in each pixel;
and in the direction that the first side points to the second side, the length of the overlapping part of the orthographic projection of the light-emitting layer and the sub-pixel of the light-shielding sheet is more than 0 micrometers and less than or equal to 2 micrometers.
In some embodiments, the pixels further include a first pixel, on a first side of which the front projection of the light-shielding sheet on the light-emitting layer is located, and a second pixel, on a second side of which the front projection of the light-shielding sheet on the light-emitting layer is located; within each of the pixels, for the sub-pixels adjacent in a direction in which the first side points to the second side, a distance between an orthographic projection of the light-emitting layer of the light-shielding sheet and the adjacent sub-pixel is greater than or equal to 0 micrometers and less than or equal to 1.5 micrometers;
in the direction that the first side points to the second side, for the adjacent first pixel and second pixel, the light shielding sheets corresponding to the two pixels are positioned on two opposite sides, or the light shielding sheets corresponding to the sub-pixels adjacent to the other pixel in the two pixels are contacted with each other, or a distance is kept between the light shielding sheets corresponding to the sub-pixels adjacent to the other pixel in the two pixels;
in the direction that the first side points to the second side, for the adjacent first pixel or the adjacent second pixel, the distance between the orthographic projection of the light-emitting layer and the nearest sub-pixel in the adjacent pixel of the light-emitting layer is greater than or equal to 0 micrometer and less than or equal to 1.5 micrometers.
In some embodiments, the optical filter layer further includes a first sub-optical filter layer provided with an array-arranged light shielding sheet, and a second sub-optical filter layer provided with an array-arranged prism sheet; the second sub-filter layer is positioned on one side of the first sub-filter layer away from the light-emitting layer;
and for the light shielding sheet and the prism sheet corresponding to the same pixel, the orthographic projection of the prism sheet on the first sub-filter layer is positioned in the light shielding sheet.
In some embodiments, the pixels include opposite first and second sides, and the projections of the prism sheet on the light-emitting layer are alternately positioned on the first and second sides of the sub-pixels in the order of the respective pixels;
the shading sheet comprises a first edge in the direction that the first side points to the second side, and the orthographic projection of the first edge on the light emitting layer is overlapped with the sub-pixels; the distance between the orthographic projection of the prism sheet on the first sub-filter layer and the corresponding first edge is more than or equal to 0.5 micrometer and less than or equal to 1 micrometer.
In some embodiments, in a direction in which the first side points to the second side, the light shielding sheet includes a second side, and an orthographic projection of the second side on the light emitting layer is located outside the sub-pixel, and is located on two sides opposite to the first side; the distance between the orthographic projection of the prism sheet on the first sub-filter layer and the corresponding second side is more than or equal to 0 micrometer and less than or equal to 2 micrometers.
In some embodiments, the pixel includes opposite first and second sides; the pixels further comprise a first pixel, the orthographic projection of the light shielding sheet on the light emitting layer is positioned on the first side of the light emitting layer, and a second pixel, the orthographic projection of the light shielding sheet on the light emitting layer is positioned on the second side of the light shielding sheet;
the first pixels and the corresponding light shielding sheets and the second pixels and the corresponding light shielding sheets are alternately arranged in one or at least two of a row type alternate arrangement, a column type alternate arrangement, a concentric circle type alternate arrangement and a checkerboard pattern alternate arrangement.
In some embodiments, further comprising: an encapsulation layer;
the packaging layer is positioned between the light-emitting layer and the light filtering layer and is positioned at one side of the light-emitting layer far away from the substrate;
the packaging layer comprises a first sub-packaging layer and a second sub-packaging layer which are stacked, and the second sub-packaging layer is positioned between the first sub-packaging layers; the thickness of the second sub-packaging layer is more than or equal to 12 microns and less than or equal to 30 microns.
In some embodiments, the filter layer further comprises: color films arranged in an array manner;
the color film sheet is adjacent to the shading sheet, and the color of the color film sheet is the same as the light emitting color of the corresponding sub-pixel.
In some embodiments, further comprising: an anti-reflection layer; the antireflection layer is positioned on one side of the filter layer away from the substrate; the material of the anti-reflection layer comprises a polarizer.
According to a second aspect of embodiments of the present application, there is provided a display device including any one of the display panels described above. The display device is mounted in a vehicle and mounted on a center console between a main driver seat and a co-driver seat of the vehicle.
According to the above embodiment, by alternately positioning the orthographic projections of the light shielding sheets on opposite sides of the sub-pixels in each pixel, two pixels with opposite orientations of the corresponding light shielding sheets are formed. By partially overlapping the orthographic projection of the light shielding sheet on the light emitting layer with the corresponding sub-pixel on one side of the sub-pixel, the absorption of the light emitted from the sub-pixel on one side can be realized by the light shielding sheet, and the light emitted from the sub-pixel on the one side can be restricted. Thus, two pixels which are arranged in an array and have opposite light emitting directions are formed in the display panel, and the two pixels can be used for displaying different contents, so that the distribution of the pixels for displaying the contents on the whole display panel can be realized through any one of the pixels for displaying the contents while the respective contents are respectively displayed through the opposite pixels in the light emitting directions without mutual interference, the display of any one of the display contents can be realized under the size of the display panel, the deformation of the display contents is avoided, and further, the appearance of the display contents can be improved while the different contents are displayed in different directions through the same display panel.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural view of a display panel according to an embodiment of the present application.
Fig. 2 is a structural plan view of a display panel according to an embodiment of the present application.
Fig. 3a is a graph showing the relationship between the brightness of the sub-pixel and the viewing angle when the light shielding sheet is located on the second side according to the embodiment of the application.
Fig. 3b shows the relationship between the brightness of the sub-pixel and the viewing angle when the light shielding sheet is positioned on the first side according to the embodiment of the application.
Fig. 4 is a schematic structural view of another display panel according to an embodiment of the present application.
Fig. 5 is a schematic structural view of another display panel according to an embodiment of the present application.
Fig. 6 is a schematic structural view of another display panel according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
In the prior art, the vehicle-mounted display device only has the functions of split-screen display and full-screen display. However, since the viewing requirements on the primary driving side and the secondary driving side are different, that is, the display contents that the primary driving side and the secondary driving side want to view are different, if the in-vehicle display device adopts a full-screen display mode, the different viewing requirements cannot be considered. Therefore, in order to meet the different demands of the display screens watched on the primary driving side and the secondary driving side, the split screen method can be adopted. However, the vehicle-mounted display device adopting the split-screen display mode can split two display areas in half on the vehicle-mounted display device, and different pictures are respectively displayed through the two display areas. However, dividing two display areas in half on the in-vehicle display device means that the display area is smaller than that of the whole in-vehicle display device for any one of the display areas. In addition, the general display screen is a display area adapted to the whole vehicle-mounted display device, and if the display screen is divided into two display areas, the display screen is required to be deformed according to the shape of the display area. Thus, the look and feel experience is reduced.
In order to solve the foregoing problems, the embodiment of the present application provides a display panel 10. Fig. 1 shows a schematic structure of the display panel 10. Fig. 2 shows a top view of the display panel 10. As shown in fig. 1 and 2, the display panel 10 includes: the light emitting device comprises a substrate 110, a light emitting layer 120 and a filter layer 130.
The light emitting layer 120 is located between the substrate 110 and the filter layer 130, and the filter layer 130 is located on a side of the light emitting layer 120 away from the substrate 110.
The light emitting layer 120 includes pixels 121 arranged in an array. Each pixel 121 includes at least three sub-pixels 1211. The filter layer 130 includes light shielding sheets 131 arranged in an array. The front projection of the light shielding film 131 on the light emitting layer 120 is partially overlapped with the corresponding sub-pixel 1211 on one side of the sub-pixel 1211, and the front projection of the light shielding film 131 on the light emitting layer 120 is alternately located on two opposite sides of the sub-pixel 1211 in each pixel 121 according to the sequence of the respective pixels 121.
Specifically, each pixel 121 includes at least three sub-pixels 1211, and three sub-pixels 1211 may be included for each pixel 121, or four sub-pixels 1211 may be included for each pixel 121, but is not limited thereto. Each pixel 121 includes three sub-pixels 1211, and each pixel 121 may include a red sub-pixel 1211R, a green sub-pixel 1211G, and a blue sub-pixel 1211B. The sub-pixel 1211 overlapping the orthographic projection portion of the light-emitting layer 120 of the light-shielding sheet 131 is the sub-pixel 1211 corresponding to the light-shielding sheet 131. And the front projection of each light shielding sheet 131 on the light emitting layer 120 is partially overlapped with a corresponding sub-pixel 1211 on one side of the sub-pixel 1211.
The front projection of the light shielding sheet 131 on the light emitting layer 120 is performed in the order of the pixels 121, that is, for the same pixel 121, the front projection of the light shielding sheet 131 on the light emitting layer 120 is positioned on the same side of the sub-pixel 1211 within the pixel 121. The light shielding sheets 131 are alternately positioned on opposite sides of the sub-pixel 1211 in front projection of the light emitting layer 120, and are arranged in accordance with the different pixels 121. Taking the content shown in fig. 2 as an example, for the same pixel 121, the orthographic projection of the light shielding sheet 131 on the light emitting layer 120 is located on the side of the sub-pixel 1211 included in the pixel 121 facing the first direction X, or on the side of the sub-pixel 1211 included in the pixel 121 facing away from the first direction X.
By alternately positioning the orthographic projections of the light shielding sheets 131 on opposite sides of the sub-pixels 1211 within each pixel 121 on the light emitting layer 120, two oppositely oriented pixels 121 corresponding to the light shielding sheets 131 are formed. By partially overlapping the front projection of the light shielding sheet 131 on the light emitting layer 120 with the corresponding sub-pixel 1211 on one side of the sub-pixel 1211, the light emission of the sub-pixel 1211 on one side can be restricted by the light shielding sheet 131 by realizing the absorption of the light emission of the sub-pixel 1211 on the one side. In this way, two kinds of pixels 121 which are arranged in an array and have opposite light emitting directions are formed in the display panel 10, and the two kinds of pixels 121 can be used for displaying different contents, so that the respective contents can be displayed respectively through the opposite pixels 121 in the light emitting directions without mutual interference, and meanwhile, any display content can be displayed in the size of the display panel 10 by distributing any pixel 121 for executing the display content on the whole display panel 10, so that deformation of the display content is avoided, and further, the appearance of the display content can be improved while different contents are displayed in different directions through the same display panel 10.
It should be noted that, the material of the light shielding sheet 131 may include a black material, but is not limited thereto, and in other embodiments, the material of the light shielding sheet 131 may also include other light absorbing materials.
In some embodiments, as shown in fig. 1 and 2, the pixels 121 include a first side C1 and a second side C2 opposite to each other, and the projection of the light shielding sheet 131 on the light emitting layer 120 is alternately located on the first side C1 and the second side C2 of the sub-pixel 1211 in each pixel 121 in sequence.
In the direction in which the first side C1 points to the second side C2, the length of the overlapping portion of the orthographic projection of the light-emitting layer 120 and the sub-pixel 1211 by the light-shielding sheet 131 is greater than 0 micrometers and less than or equal to 2 micrometers.
Specifically, in the direction in which the first side C1 points to the second side C2, that is, in the first direction X, the length of the overlapping portion of the orthographic projection of the light-emitting layer 120 and the sub-pixel 1211 by the light-shielding sheet 131 is greater than 0 micrometers and less than or equal to 2 micrometers. The length of the overlapping portion of the front projection of the light-emitting layer 120 and the sub-pixel 1211 of the light-shielding sheet 131 is the length L1 shown in fig. 1 and 2, where the length L1 is greater than 0 micrometers and less than or equal to 2 micrometers.
If the length L1 is greater than 2 micrometers, the light shielding sheet 131 affects the light emission of the sub-pixel 1211, and affects the display effect, and if the length L1 is equal to 0 micrometers, the light shielding sheet 131 cannot define the light emission side of the sub-pixel 1211.
It should be noted that, in fig. 1 and fig. 2, only one possible embodiment of the first side C1 and the second side C2 is shown, but in other embodiments, the embodiment is not limited thereto, and the specific first side C1 and the second side C2 may be flexibly set according to actual needs.
Fig. 3a and 3b show the relationship between the brightness and the viewing angle of the two sub-pixels 1211 of the light shielding film 131 on the first side C1 and the second side C2, respectively. Fig. 3a shows the relationship between the brightness of the sub-pixel 1211 and the viewing angle when the light shielding sheet 131 is located at the second side C2, and fig. 3b shows the relationship between the brightness of the sub-pixel 1211 and the viewing angle when the light shielding sheet 131 is located at the first side C1. And the horizontal axis is the viewing angle, and positive and negative values of the viewing angle correspond to the viewing from the first side C1 and from the second side C2, respectively.
As shown in fig. 3a and 3b, by making the length L1 greater than 0 micron and less than or equal to 2 microns, it is possible to ensure that the light-emitting of the pixel 121 drops rapidly on the side where the light-shielding sheet 131 is disposed, so that the two pixels 121 with opposite light-emitting directions are better and do not interfere with each other, so that the two pixels 121 with opposite light-emitting directions can be better and respectively display the respective contents without interfering with each other, and at the same time, by distributing any one of the pixels 121 executing the display contents on the whole display panel 10, any one of the display contents can be displayed under the size of the display panel 10, avoiding deformation of the display contents, and further, while displaying different contents in different directions through the same display panel 10, improving the appearance of the display contents.
In some embodiments, as shown in fig. 1 and 2, the pixel 121 further includes a first pixel having an orthographic projection of the light shielding film 131 on the light emitting layer 120 at a first side C1 thereof, and a second pixel having an orthographic projection of the light shielding film 131 on the light emitting layer 120 at a second side C2 thereof. Within each pixel 121, for the adjacent sub-pixel 1211 in the direction in which the first side C1 points to the second side C2, the distance between the orthographic projection of the light shielding sheet 131 on the light emitting layer 120 and the adjacent sub-pixel 1211 is greater than or equal to 0 micrometers and less than or equal to 1.5 micrometers.
Specifically, for the sub-pixels 1211 adjacent in the direction in which the first side C1 points to the second side C2, that is, the sub-pixels 1211 adjacent in the first direction X, the distance between the orthographic projection of the light shielding sheet 131 on the light emitting layer 120 and the adjacent sub-pixels 1211 is 0 micrometers or more and 1.5 micrometers or less. The distance between the front projection of the light shielding film 131 on the light emitting layer 120 and the adjacent sub-pixel 1211 is the length L2 shown in fig. 1 and 2, where the length L2 is greater than or equal to 0 micrometer and less than or equal to 1.5 micrometers.
In the direction in which the first side C1 points to the second side C2, the light shielding sheets 131 corresponding to the two pixels 121 are located at opposite sides with respect to the adjacent first and second pixels, or the light shielding sheets 131 corresponding to the sub-pixels 1211 adjacent to the other pixel 121 within the two pixels 121 are in contact with each other, or a distance is maintained between the light shielding sheets 131 corresponding to the sub-pixels 1211 adjacent to the other pixel 121 within the two pixels 121.
Specifically, in the direction in which the first side C1 points to the second side C2, i.e., in the first direction X, for the adjacent first pixel and second pixel, as shown in the area Q1 in fig. 2, the light shielding sheets 131 corresponding to the two pixels 121 may be located on opposite sides, or, as shown in the area Q2 in fig. 2, the light shielding sheets 131 corresponding to the two pixels 121 may be adjacent to each other. In the case where the light shielding sheets 131 corresponding to the two pixels 121 are adjacent to each other, the light shielding sheets 131 corresponding to the sub-pixels 1211 adjacent to the other pixel 121 within the two pixels 121 may or may not be in contact with each other. The selection of the contact or non-contact may be flexibly selected according to the actual situation, and is not limited herein since it does not affect the light emission of the sub-pixel 1211.
In the direction in which the first side C1 points to the second side C2, for the adjacent first pixel or the adjacent second pixel, the distance between the orthographic projection of the light shielding sheet 131 in the light emitting layer 120 and the nearest sub-pixel 1211 in the adjacent pixel 121 is greater than or equal to 0 micrometers and less than or equal to 1.5 micrometers.
Specifically, referring to the adjacent first pixel shown in fig. 2, the front projection of the light shielding sheet 131 in the light emitting layer 120 is at a distance from the nearest sub-pixel 1211 within its adjacent pixel 121. I.e., for one of the first pixels, the distance between the nearest subpixel 1211 among the subpixels 1211 within its neighboring first pixel and its closest subpixel 1211 in the first direction X, i.e., the length L3 shown in fig. 2, is 0 micrometers or more and 1.5 micrometers or less.
When the length L2 and the length L3 are smaller than 0 μm, that is, when the front projection of the light emitting layer 120 of the light shielding sheet 131 corresponding to the sub-pixel 1211 overlaps with the adjacent sub-pixel 1211, the light emitting effect of the adjacent sub-pixel 1211 is affected by the light shielding sheet 131 corresponding to the sub-pixel 1211, and when the length L3 is larger than 1.5 μm, the area of the light shielding sheet 131 is affected, and the limiting effect of the light shielding sheet 131 on the light emitting side of the sub-pixel 1211 is affected.
By setting the length L2 and the length L3 to be equal to or greater than 0 micron and equal to or less than 1.5 micron, it is possible to avoid the light shielding sheet 131 corresponding to the sub-pixel 1211 from affecting the light emitting effect of the adjacent sub-pixel 1211, and to more closely approach the relationship between the brightness and the viewing angle of the two sub-pixels 1211 shown in fig. 3a and 3b, so that the light emitting amounts of the two pixels 121 with opposite light emitting directions are improved while the two pixels 121 with opposite light emitting directions are better not interfered with each other, and accordingly, the respective contents can be better displayed without being interfered with each other by the two pixels 121 with opposite light emitting directions, and at the same time, the distribution of any display contents on the whole display panel 10 can be performed by any one of the pixels 121 with execution, so that any display contents can be displayed in the size of the display panel 10, the deformation of the display contents can be avoided, and further, the viewing sense of the display contents can be improved while the different contents are displayed in different directions by the same display panel 10.
In some embodiments, fig. 4 shows a schematic structural diagram of another display panel 10. As shown in fig. 4, the filter layer 130 further includes a first sub-filter layer 1301 provided with an array arrangement of light shielding sheets 131, and a second sub-filter layer 1302 provided with an array arrangement of prism sheets 132. The second sub-filter 1302 is located on a side of the first sub-filter 1301 remote from the light emitting layer 120.
For the light shielding sheet 131 and the prism sheet 132 corresponding to the same pixel 121, the orthographic projection of the prism sheet 132 on the first sub-filter 1301 is located in the light shielding sheet 131.
Specifically, the front projection of the light emitting layer 120 corresponds to the same pixel 121, that is, the front projection of the light shielding sheet 131 on the light emitting layer overlaps with one side of the pixel 121, and the prism sheet 132 is located within the projection range of the light shielding sheet 131 on the second sub-filter 1302. And, the orthographic projection of each prism sheet 132 on the first sub-filter 1301 is located in one light shielding sheet 131.
Referring to the optical path S1 shown in fig. 4, taking the first pixel as an example, by providing the prism sheet 132 directly above the light shielding sheet 131, when part of the light emitted from the sub-pixel 1211 in the first pixel exits along the edge of the light shielding sheet 131 in the direction of the first side C1, the part of the light can be incident on the prism sheet 132 corresponding to the light shielding sheet 131. By the refraction action of the prism sheet 132, this part of the light can be refracted again to the beyond second side C2. In this way, for the first pixel, the light output of the first pixel in the direction towards the second side C2 can be improved, and the same is true for the second pixel, so that the light output of the first pixel and the second pixel in the respective main light output directions can be improved, so as to improve the display effect, and further, the two pixels 121 with opposite light output directions can be better caused to display the respective contents without mutual interference, and meanwhile, by distributing any one of the pixels 121 for executing the display contents on the whole display panel 10, any one of the display contents can be displayed under the size of the display panel 10, so that deformation of the display contents is avoided, and the appearance of the display contents is improved while different contents are displayed in different directions through the same display panel 10.
It should be noted that, the prism sheet 132 is not limited to the prism, and in other embodiments, a structure of the prism sheet 132 formed by stacking a high refractive index lens and a low refractive index lens, or other materials capable of achieving similar refractive effects may be used.
In some embodiments, as shown in fig. 4, the pixel 121 includes a first side C1 and a second side C2 opposite to each other, and the projection of the prism sheet 132 on the light emitting layer 120 is alternately located on the first side C1 and the second side C2 of the sub-pixel 1211 in the order of each pixel 121.
In a direction in which the first side C1 points to the second side C2, the light shielding sheet 131 includes a first edge 1311, and an orthographic projection of the first edge 1311 on the light emitting layer 120 overlaps the sub-pixel 1211. The distance between the front projection of the prism sheet 132 on the first sub-filter 1301 and the corresponding first edge 1311 is greater than or equal to 0.5 micrometers and less than or equal to 1 micrometer.
Specifically, in the direction in which the first side C1 points to the second side C2, that is, in the first direction X, the distance between the front projection of the prism sheet 132 on the first sub-filter 1301 and the first side 1311 is greater than or equal to 0.5 micrometers and less than or equal to 1 micrometer. The distance between the front projection of the prism sheet 132 on the first sub-filter 1301 and the corresponding first side 1311 is the distance between the front projection of the prism sheet 132 on the first sub-filter 1301 and the corresponding first side 1311 of the filter 131, that is, the length L4, where the length L4 is greater than or equal to 0.5 micrometer and less than or equal to 1 micrometer.
When the length L4 is smaller than 0.5 μm, the prism sheet 132 is liable to interfere with the light emitted normally from the corresponding sub-pixel 1211, that is, the light emitted from the sub-pixel 1211 in the main light-emitting direction thereof, whereas when the length L4 is larger than 1 μm, the prism sheet 132 is too far from the first edge 1311 of the light shielding sheet 131 to be able to better receive and refract the light emitted from the non-light-emitting side of the corresponding sub-pixel 1211, that is, the light emitted from the corresponding sub-pixel 1211 in the non-main light-emitting direction thereof.
By this arrangement, the light output of the corresponding sub-pixel 1211 in the main light output direction can be better improved by the prism sheet 132, so that the light output of the first pixel and the second pixel in the main light output directions can be improved, the display effect can be improved, and further, the two pixels 121 with opposite light output directions can be better respectively display the respective contents without mutual interference, and meanwhile, the distribution of any one of the pixels 121 for executing the display contents on the whole display panel 10 can be used for displaying any one of the display contents under the size of the display panel 10, so that the deformation of the display contents is avoided, and the appearance of the display contents can be improved while different contents are displayed in different directions by the same display panel 10.
In some embodiments, as shown in fig. 4, in a direction in which the first side C1 points to the second side C2, the light shielding sheet 131 includes a second side 1312, and an orthographic projection of the second side 1312 on the light emitting layer 120 is located outside the sub-pixel 1211, and opposite to the first side 1311, on two sides of the light shielding sheet 131. The distance between the orthographic projection of the prism sheet 132 on the first sub-filter 1301 and the corresponding second side 1312 is greater than or equal to 0 micrometers and less than or equal to 2 micrometers.
Specifically, in the direction in which the first side C1 points to the second side C2, that is, in the first direction X, the distance between the orthographic projection of the prism sheet 132 on the first sub-filter 1301 and the second side 1312 is greater than or equal to 0 micrometers and less than or equal to 2 micrometers. The distance between the front projection of the prism sheet 132 on the first sub-filter layer 1301 and the corresponding second side 1312 is the distance between the front projection of the prism sheet 132 on the first sub-filter layer 1301 and the corresponding second side 1312 of the filter 131, that is, the length L5, where the length L5 is greater than or equal to 0 micrometer and less than or equal to 2 micrometers.
When the length L5 is smaller than 0 μm, that is, when the prism sheet 132 corresponding to the sub-pixel 1211 is not located in the light shielding sheet 131 corresponding to the sub-pixel 1211 but extends out of the light shielding sheet 131, the light emitted by the adjacent sub-pixel 1211 in the normal light emitting direction is easily interfered, that is, when the length L5 is larger than 2 μm, the width of the prism sheet 132 is smaller, and the light emitted from the non-light emitting side of the corresponding sub-pixel 1211 cannot be received and refracted well, that is, the light emitted by the corresponding sub-pixel 1211 in the non-main light emitting direction cannot be received and refracted well.
By this arrangement, the light output of the corresponding sub-pixel 1211 in the main light output direction can be better improved by the prism sheet 132, so that the light output of the first pixel and the second pixel in the main light output directions can be improved, the display effect can be improved, and further, the two pixels 121 with opposite light output directions can be better respectively display the respective contents without mutual interference, and meanwhile, the distribution of any one of the pixels 121 for executing the display contents on the whole display panel 10 can be used for displaying any one of the display contents under the size of the display panel 10, so that the deformation of the display contents is avoided, and the appearance of the display contents can be improved while different contents are displayed in different directions by the same display panel 10.
In some embodiments, referring to what is shown in fig. 1, 2 and 4, the pixel 121 includes a first side C1 and a second side C2 opposite to each other. The pixel 121 further includes a first pixel, where the front projection of the light shielding film 131 on the light emitting layer 120 is located at the first side C1 thereof, and a second pixel, where the front projection of the light shielding film 131 on the light emitting layer 120 is located at the second side C2 thereof.
The first pixels and the corresponding light shielding sheets 131 and the second pixels and the corresponding light shielding sheets 131 are alternately arranged in one or at least two of a row type alternate arrangement, a column type alternate arrangement, a concentric circle type alternate arrangement and a checkerboard type alternate arrangement.
Specifically, the concentric circle type alternating arrangement is to arrange the first pixels and the corresponding light shielding sheets 131 and the second pixels and the corresponding light shielding sheets 131 in the display panel 10 from the center of the display panel 10 outwards in a circle.
By the arrangement, the first pixels and the second pixels can be better distributed in the display panel 10, so that the two pixels 121 with opposite light emitting directions can respectively display respective contents without mutual interference, and meanwhile, the distribution of any one pixel 121 for executing the display contents on the whole display panel 10 can be better realized, so that any display content can be displayed under the size of the display panel 10, the deformation of the display content is avoided, and further, the appearance of the display content can be improved while different contents are displayed in different directions through the same display panel 10.
Preferably, the first pixels and the corresponding light shielding sheets 131 and the second pixels and the corresponding light shielding sheets 131 are alternately arranged in a checkerboard pattern. Since the distribution density of the first pixels and the second pixels on the display panel 10 is most uniform at this time, the distribution of each pixel 121 on the entire display panel 10 can be made optimal.
In some embodiments, as shown in fig. 1 and 4, the display panel 10 further includes: and an encapsulation layer 140.
The encapsulation layer 140 is located between the light emitting layer 120 and the filter layer 130, and is located at a side of the light emitting layer 120 away from the substrate 110.
The package layer 140 includes a first sub-package layer 141 and a second sub-package layer 142 stacked together, and the second sub-package layer 142 is located between the first sub-package layers 141. The thickness of the second sub-packaging layer 142 is greater than or equal to 12 micrometers and less than or equal to 30 micrometers.
Specifically, the material of the first sub-encapsulation layer 141 may include an inorganic material, and the material of the second sub-encapsulation layer 142 may include an organic material formed by inkjet printing, but is not limited thereto. The thickness of the second sub-packaging layer 142 is greater than or equal to 12 micrometers and less than or equal to 30 micrometers, i.e. the thickness H1 in fig. 1 and 4 is greater than or equal to 12 micrometers and less than or equal to 30 micrometers.
When the thickness H1 is smaller than 12 micrometers, the distance between the filter layer 130 and the light-emitting layer 120 is too short, and the light-emitting layer 120 still has a larger light-emitting angle after passing through the filter layer 130, so that the effect of the filter layer 130 is too weak, and when the thickness H1 is larger than 30 micrometers, the distance between the filter layer 130 and the light-emitting layer 120 is too long, the light-emitting angle of the light-emitting layer 120 after passing through the filter layer 130 is smaller, and the light-emitting amount of the light-emitting layer 120 is reduced, thereby affecting the display effect of the display panel 10.
By increasing the thickness of the encapsulation layer 140, the distance between the light shielding sheet 131 and the sub-pixel 1211 in the thickness direction may be increased, or the distance between the light shielding sheet 131 and the prism sheet 132 and the sub-pixel 1211 in the thickness direction may be increased, so that the effect of the light shielding sheet 131 on the light emission of the sub-pixel 1211 may be enhanced, or the effect of the light shielding sheet 131 and the prism sheet 132 on the light emission of the sub-pixel 1211 may be increased, and further, the appearance of the display content may be improved while displaying different contents in different directions through the same display panel 10.
In some embodiments, as shown in fig. 1 and 4, the filter layer 130 further includes: color films 133 arranged in an array.
The color film 133 is adjacent to the light shielding film 131, and the color of the color film 133 is the same as the light emitting color of the corresponding sub-pixel 1211.
By such arrangement, the two pixels 121 with opposite light emitting directions can display the respective contents without interfering each other, and the distribution of the pixels 121 for displaying the contents on the whole display panel 10 can be performed by any one of the pixels, so that any one of the display contents can be displayed in the size of the display panel 10, deformation of the display contents is avoided, and the color film 133 is further arranged to realize the filtering of the sub-pixels 1211, thereby further improving the look and feel of the display contents while displaying the different contents in different directions through the same display panel 10.
In some embodiments, fig. 5 and 6 respectively show a schematic structural diagram of another display panel 10. As shown in fig. 5 and 6, the display panel 10 further includes: an anti-reflection layer 150. The anti-reflection layer 150 is located on a side of the filter layer 130 remote from the substrate 110. The material of the anti-reflection layer 150 includes a polarizer.
By such arrangement, the two pixels 121 having opposite light emitting directions can display the respective contents without interfering with each other, and the distribution of the pixels 121 for displaying the contents on the whole display panel 10 can be performed by any one of the pixels, so that any one of the display contents can be displayed in the size of the display panel 10, deformation of the display contents can be avoided, and reflection of the display panel 10 to ambient light can be further reduced by providing the antireflection layer 150, thereby further improving the appearance of the display contents while displaying different contents in different directions through the same display panel 10.
In some embodiments, as shown in fig. 1, 2, 4, 5 and 6, the display panel 10 further includes: the array layer 160, the touch layer 170 and the glass cover 180 are driven.
A driving circuit for driving the light emitting layer 120 to emit light is provided in the driving array layer 160. The light emitting layer 120 further includes a pixel defining layer 122, an anode 123, and a cathode 124. The sub-pixel 1211 and the anode 123 are located in the opening of the pixel defining layer 122, and the sub-pixel 1211 is located at a side of the anode 123 away from the substrate 110. The cathode 124 is located on a side of the pixel defining layer 122 remote from the substrate 110. Subpixel 1211 is electrically connected to anode 123 and cathode 124.
The touch layer 170 is located between the encapsulation layer 140 and the filter layer 130, and is used for receiving an external touch indication and converting the external touch indication into an electrical signal.
The glass cover plate 180 is positioned at a side of the filter layer 130 away from the substrate 110 or at a side of the anti-reflection layer 150 away from the substrate 110, and serves to protect the structure of other display panels 10 positioned thereunder.
The filter layer 130 further includes a filling compound 134, where the filling compound 134 is used to fill the gaps between the light shielding sheets 131 or between the prism sheets 132, and the filling compound 134 is also used to fill and ensure the flatness of the sides of the first and second sub-filter layers 1301 and 1302 away from the substrate 110. The material of the filler glue 134 may include OC glue, among others.
The present application also provides a display device comprising any of the display panels 10 described above. The display device is mounted in the vehicle and mounted on a center console between a main driver seat and a passenger seat of the vehicle.
The above embodiments of the present application may be complementary to each other without collision.
It is noted that in the drawings, the size of layers and regions may be exaggerated for clarity of illustration. Moreover, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers may be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may be present. In addition, it will be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intervening layer or element may also be present. Like reference numerals refer to like elements throughout.
The term "plurality" refers to two or more, unless explicitly defined otherwise.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (11)

1. A display panel, comprising: a substrate, a light emitting layer and a filter layer;
the light-emitting layer is positioned between the substrate and the filter layer, and the filter layer is positioned on one side of the light-emitting layer away from the substrate;
the light-emitting layer comprises pixels arranged in an array; each pixel comprises at least three sub-pixels; the filter layer comprises light shielding sheets arranged in an array; the front projection of the light shielding sheet on the light emitting layer is partially overlapped with the corresponding sub-pixel on one side of the sub-pixel, and the front projection of the light shielding sheet on the light emitting layer is alternately positioned on two opposite sides of the sub-pixel in each pixel according to the sequence of the pixels.
2. The display panel of claim 1, wherein the pixels include opposite first and second sides, the projection of the light shielding sheet on the light emitting layer alternating between the first and second sides of the sub-pixels within each of the pixels in order;
and in the direction that the first side points to the second side, the length of the overlapping part of the orthographic projection of the light-emitting layer and the sub-pixel of the light-shielding sheet is more than 0 micrometers and less than or equal to 2 micrometers.
3. The display panel of claim 2, wherein the pixels further comprise a first pixel having a front projection of the light shielding sheet on a first side thereof and a second pixel having a front projection of the light shielding sheet on a second side thereof; within each of the pixels, for the sub-pixels adjacent in a direction in which the first side points to the second side, a distance between an orthographic projection of the light-emitting layer of the light-shielding sheet and the adjacent sub-pixel is greater than or equal to 0 micrometers and less than or equal to 1.5 micrometers;
in the direction that the first side points to the second side, for the adjacent first pixel and second pixel, the light shielding sheets corresponding to the two pixels are positioned on two opposite sides, or the light shielding sheets corresponding to the sub-pixels adjacent to the other pixel in the two pixels are contacted with each other, or a distance is kept between the light shielding sheets corresponding to the sub-pixels adjacent to the other pixel in the two pixels;
in the direction that the first side points to the second side, for the adjacent first pixel or the adjacent second pixel, the distance between the orthographic projection of the light-emitting layer and the nearest sub-pixel in the adjacent pixel of the light-emitting layer is greater than or equal to 0 micrometer and less than or equal to 1.5 micrometers.
4. The display panel according to claim 1, wherein the filter layer further comprises a first sub-filter layer provided with light shielding sheets arranged in an array, and a second sub-filter layer provided with prism sheets arranged in an array; the second sub-filter layer is positioned on one side of the first sub-filter layer away from the light-emitting layer;
and for the shading sheet and the prism sheet corresponding to the same pixel, the orthographic projection of the prism sheet on the first sub-filter layer is positioned in the shading sheet.
5. The display panel of claim 4, wherein the pixels comprise opposite first and second sides, the projection of the prism sheet on the light-emitting layer being alternately positioned on the first and second sides of the sub-pixels in the order of the respective pixels;
the shading sheet comprises a first edge in the direction that the first side points to the second side, and the orthographic projection of the first edge on the light emitting layer is overlapped with the sub-pixels; the distance between the orthographic projection of the prism sheet on the first sub-filter layer and the corresponding first edge is more than or equal to 0.5 micrometer and less than or equal to 1 micrometer.
6. The display panel of claim 5, wherein the light shielding sheet includes a second side in a direction in which the first side is directed toward the second side, an orthographic projection of the second side on the light emitting layer is located outside the sub-pixel, and opposite to the first side, the second side is located on both sides of the light shielding sheet; the distance between the orthographic projection of the prism sheet on the first sub-filter layer and the corresponding second side is more than or equal to 0 micrometer and less than or equal to 2 micrometers.
7. The display panel of claim 1, wherein the pixel comprises opposite first and second sides; the pixels further comprise a first pixel, the orthographic projection of the light shielding sheet on the light emitting layer is positioned on the first side of the light emitting layer, and a second pixel, the orthographic projection of the light shielding sheet on the light emitting layer is positioned on the second side of the light shielding sheet;
the first pixels and the corresponding light shielding sheets and the second pixels and the corresponding light shielding sheets are alternately arranged in one or at least two of a row type alternate arrangement, a column type alternate arrangement, a concentric circle type alternate arrangement and a checkerboard pattern alternate arrangement.
8. The display panel according to any one of claims 1 to 7, further comprising: an encapsulation layer;
the packaging layer is positioned between the light-emitting layer and the light filtering layer and is positioned at one side of the light-emitting layer far away from the substrate;
the packaging layer comprises a first sub-packaging layer and a second sub-packaging layer which are stacked, and the second sub-packaging layer is positioned between the first sub-packaging layers; the thickness of the second sub-packaging layer is more than or equal to 12 microns and less than or equal to 30 microns.
9. The display panel according to any one of claims 1 to 7, wherein the filter layer further comprises: color films arranged in an array manner;
the color film sheet is adjacent to the shading sheet, and the color of the color film sheet is the same as the light emitting color of the corresponding sub-pixel.
10. The display panel according to any one of claims 1 to 7, further comprising: an anti-reflection layer; the antireflection layer is positioned on one side of the filter layer away from the substrate; the material of the anti-reflection layer comprises a polarizer.
11. A display device comprising the display panel according to any one of claims 1 to 10; the display device is mounted in a vehicle and mounted on a center console between a main driver seat and a co-driver seat of the vehicle.
CN202311091636.7A 2023-08-28 2023-08-28 Display panel and display device Pending CN117082909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311091636.7A CN117082909A (en) 2023-08-28 2023-08-28 Display panel and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311091636.7A CN117082909A (en) 2023-08-28 2023-08-28 Display panel and display device

Publications (1)

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CN117082909A true CN117082909A (en) 2023-11-17

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