CN219876764U - Display panel and display device - Google Patents
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- CN219876764U CN219876764U CN202320279834.5U CN202320279834U CN219876764U CN 219876764 U CN219876764 U CN 219876764U CN 202320279834 U CN202320279834 U CN 202320279834U CN 219876764 U CN219876764 U CN 219876764U
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- 239000003086 colorant Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000007641 inkjet printing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Abstract
The utility model discloses a display panel and a display device, wherein the display panel comprises a plurality of sub-pixels, the sub-pixels with the same luminous color are arranged along a first direction, the sub-pixels with different luminous colors are arranged along a second direction, the first direction is perpendicular to the second direction, and the first direction is parallel to a binocular connecting line of a viewer; the lengths of the sub-pixels with different luminous colors in the first direction are equal; the length of the sub-pixels of different emission colors in the second direction is configured to match the lifetime of the sub-pixels of different emission colors. Because the length of the sub-pixel in the first direction is not randomly adjusted, the length of the sub-pixel in the first direction needs to be matched with the lens, and the service lives of the sub-pixels with different luminous colors are matched by adjusting the lengths of the sub-pixels with different luminous colors in the second direction.
Description
Technical Field
The utility model belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
For OLED (Organic Light-Emitting Diode) products, the lifetimes of the sub-pixels of different colors will generally be different, and the lifetimes of the sub-pixels will be matched by adjusting the size of the display opening.
Disclosure of Invention
The present utility model has been made based on the findings and knowledge of the inventors of the following facts and problems.
The 3D display divides the existing display pixels into a plurality of views, each View displays object information of different angles, and the 3D display is realized by matching with a micro lens. For 3D display, three-dimensional object information is observed when the observer is at different viewing angles, the corresponding lens has a certain curvature in the lateral direction, and the display change at different viewing angles in the longitudinal direction is negligible. Therefore, for 3D display, the opening of the display pixel needs to be closely matched to the lens size in the lateral direction to achieve the best display effect.
The utility model provides a display panel, which comprises a plurality of sub-pixels, wherein the sub-pixels with the same luminous color are arranged along a first direction, the sub-pixels with different luminous colors are arranged along a second direction, the first direction is perpendicular to the second direction, and the first direction is parallel to a binocular connecting line of a viewer; the lengths of the sub-pixels with different luminous colors in the first direction are equal; the length of the sub-pixels of different emission colors in the second direction is configured to match the lifetime of the sub-pixels of different emission colors. Because the length of the sub-pixel in the first direction is not randomly adjusted, the length of the sub-pixel in the first direction needs to be matched with the lens, and the service lives of the sub-pixels with different luminous colors are matched by adjusting the lengths of the sub-pixels with different luminous colors in the second direction.
According to an embodiment of the present utility model, the display panel includes a plurality of pixel islands arranged in an array, the pixel islands including a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels; the length of the second color sub-pixel in the second direction is greater than the length of the first color sub-pixel in the second direction, and the length of the second color sub-pixel in the second direction is greater than the length of the third color sub-pixel in the second direction. Therefore, when the service life of the second color sub-pixel needs to be prolonged, the second color sub-pixel can be prolonged by adjusting the length of the second color sub-pixel in the second direction, and the current density of the second color sub-pixel can be reduced, so that the service life of the second color sub-pixel is prolonged.
According to an embodiment of the present utility model, the length of the first color sub-pixel in the second direction is equal to the length of the third color sub-pixel in the second direction; the first color is red, the second color is green, and the third color is blue.
According to an embodiment of the present utility model, the sub-pixels having the same emission color are equal in length in the first direction, and the sub-pixels having the same emission color are equal in length in the second direction.
According to an embodiment of the present utility model, the display panel further includes a substrate, and the sub-pixels are located at one side of the substrate; the sub-pixel includes an anode, a cathode, and a light emitting layer between the anode and the cathode; the cathode is positioned on one side of the light-emitting layer away from the substrate.
According to an embodiment of the utility model, the display panel further comprises a pixel defining layer located on a side of the anode remote from the substrate; the pixel defining layer is provided with a plurality of openings which are arranged at intervals and at least partially overlap with the anode. Thus, the opening region corresponds to the sub-pixel position, and light emission is possible.
According to an embodiment of the present utility model, the display panel further includes a retaining wall, the retaining wall is located on a side of the pixel defining layer away from the substrate, the retaining wall extends along the first direction, and the retaining wall is located between adjacent sub-pixels with different emission colors. The light emitting layer may be formed by an inkjet printing method, whereby by providing the barrier wall, ink can be caused to flow between a plurality of sub-pixels of the same light emitting color, and ink can be prevented from flowing to sub-pixel positions of different light emitting colors.
According to an embodiment of the utility model, the height of the pixel defining layer is 0.3-0.8 microns and the height of the retaining wall is 1.5-2.5 microns. Therefore, when the light-emitting layer is manufactured by using an ink-jet printing method, the material forming the light-emitting layer can flow among a plurality of sub-pixels with the same light-emitting color, and the material forming the light-emitting layer can be effectively prevented from flowing to the positions of the sub-pixels with different light-emitting colors.
According to an embodiment of the present utility model, the orthographic projection area of the light emitting layer of the plurality of sub-pixels having the same light emitting color in the pixel island on the substrate is larger than the product of the number of the openings distributed along the first direction and the opening area.
According to an embodiment of the present utility model, the display panel further includes a color filter, and the color filter is located at a side of the pixel island away from the substrate; the color filter comprises a plurality of color blocks arranged at intervals and a black matrix arranged between the adjacent color blocks, and the orthographic projection of the color blocks on the substrate is at least partially overlapped with the orthographic projection of the sub-pixels on the substrate. Therefore, the color filter can play a role of filtering light, and the display effect can be further improved.
According to an embodiment of the present utility model, the display panel further includes a plurality of lenses; the lens is positioned on one side of the color filter away from the pixel island. Due to the position difference generated by the interpupillary distance between the two eyes of the viewer, the left eye and the right eye of the viewer respectively receive two different 2D images, and the human brain perceives the different 2D images seen by the left eye and the right eye as 3D images.
The utility model also provides a display device comprising the display panel. Thus, the display device has all the features and advantages of the display panel described above, and will not be described herein.
Drawings
FIG. 1 is a diagram showing a distribution of pixels in a display panel according to the related art;
FIG. 2 is a schematic diagram of a pixel island in a display panel according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a display panel according to an embodiment of the utility model;
FIG. 4 is a top view of a pixel defining layer in one embodiment of the utility model;
fig. 5 is a top view of a retaining wall according to one embodiment of the present utility model;
fig. 6 is a cross-sectional view taken along CC' in fig. 5 in one embodiment of the utility model.
Description of the reference numerals
100-pixel islands, 110-first color sub-pixels, 120-second color sub-pixels, 130-third color sub-pixels, 200-substrate, 300-anode, 400-pixel defining layer, 600-barrier wall.
Detailed Description
Embodiments of the present utility model are described in detail below. The following examples are illustrative only and are not to be construed as limiting the utility model. The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product. The reagents used were conventional products commercially available without the manufacturer's knowledge.
Referring to fig. 1, the related art adjusts the life span of the sub-pixels of different colors by adjusting the openings of the sub-pixels of different colors in the lateral direction. Specifically, the service lives of the R sub-pixel, the G sub-pixel and the B sub-pixel with different light emission colors are adjusted by adjusting the lengths of the R sub-pixel, the G sub-pixel and the B sub-pixel in the transverse direction.
The inventors have found that in a 3D display panel, the length of the sub-pixels in the lateral direction needs to be closely matched to the lens size for optimal display.
The utility model provides a display panel, referring to fig. 2, the display panel comprises a plurality of sub-pixels, the sub-pixels with the same luminous color are arranged along a first direction, the sub-pixels with different luminous colors are arranged along a second direction, the first direction is perpendicular to the second direction, and the first direction is parallel to the binocular connecting line of a viewer; the sub-pixels having different emission colors have equal lengths in the first direction, that is, w1=w2=w3; the lengths (L1, L2, L3) of the sub-pixels of different emission colors in the second direction are configured to match the lifetimes of the sub-pixels of different emission colors. Because the length of the sub-pixel in the first direction is not randomly adjusted, the length of the sub-pixel in the first direction needs to be matched with the lens, and the service lives of the sub-pixels with different luminous colors are matched by adjusting the lengths of the sub-pixels with different luminous colors in the second direction.
According to an embodiment of the present utility model, in the pixel island, the lengths of the sub-pixels of the same emission color in the first direction are equal, and the lengths of the sub-pixels of the same emission color in the second direction are equal.
According to some embodiments of the present utility model, referring to fig. 2, a display panel includes a plurality of pixel islands 100 arranged in an array, the pixel islands 100 including a plurality of first color sub-pixels 110, a plurality of second color sub-pixels 120, and a plurality of third color sub-pixels 130; the length L2 of the second color sub-pixel 120 in the second direction is greater than the length L1 of the first color sub-pixel 110 in the second direction, and the length L2 of the second color sub-pixel 120 in the second direction is greater than the length L3 of the third color sub-pixel 130 in the second direction. That is, when the lifetime of the second color sub-pixel 120 needs to be increased, this may be achieved by adjusting the length of the second color sub-pixel 120 in the second direction, specifically, L2 may be made larger than L1, and L2 may be made larger than L3, so that the current density of the second color sub-pixel 120 may be reduced, and thus the lifetime of the second color sub-pixel 120 may be increased.
It should be noted that, fig. 2 shows that the number of the 3 sub-pixels with different emission colors in the pixel island 100 and the number of the sub-pixels with the same emission color are 11, and fig. 2 is only an exemplary illustration, and the number of the sub-pixels with the same emission color in the pixel island 100 is not limited to 11, and may be adjusted according to actual use requirements.
According to some embodiments of the utility model, the length L1 of the first color sub-pixel 110 in the second direction is equal to the length L3 of the third color sub-pixel 130 in the second direction, i.e. l1=l3; the first color is red, the second color is green, and the third color is blue.
According to an embodiment of the present utility model, the display panel further includes a substrate 200, and the sub-pixels are located at one side of the substrate 200; the sub-pixel includes an anode 300, a cathode, and a light emitting layer between the anode 300 and the cathode; the cathode is located at a side of the light emitting layer remote from the substrate 200.
According to the embodiment of the utility model, the anodes 300 of the plurality of sub-pixels are located on the same layer, and the anodes 300 of the plurality of sub-pixels are arranged at intervals, and the plurality of sub-pixels share the cathode, i.e. the cathode is manufactured in a whole layer.
According to some embodiments of the present utility model, the sub-pixel may further include at least one of a hole injection layer, a hole transport layer, an electron blocking layer, an electron transport layer, and an electron injection layer, thereby further improving the light emitting effect of the sub-pixel.
Referring to fig. 3 and 4, the display panel further includes a pixel defining layer 400, the pixel defining layer 400 being located at a side of the anode 300 remote from the substrate 200, according to an embodiment of the present utility model; the pixel defining layer 400 is provided with a plurality of openings disposed at intervals, and the openings at least partially overlap with the anode 300. A light emitting layer and a cathode are sequentially disposed on the side of the anode 300 away from the substrate 200 in an opening region, and the opening region corresponds to the sub-pixel position, thereby emitting light.
According to some embodiments of the present utility model, color display may be achieved by white light emitting organic light emitting diode devices, then obtaining three primary colors through color filters, and combining the three primary colors. Further, the light emitting layer may be formed by vapor deposition, and in this case, the orthographic projection area of the light emitting layer on the substrate 200 is equal to the area of the pixel island 100, that is, the light emitting layer may be formed entirely.
According to other embodiments of the present utility model, the light emitting layer may also be formed by inkjet printing.
According to an embodiment of the present utility model, referring to fig. 5 and 6, the display panel further includes a retaining wall 600, the retaining wall 600 is located at a side of the pixel defining layer 400 away from the substrate 200, the retaining wall 600 extends along the first direction, and the retaining wall 600 is located between adjacent sub-pixels having different emission colors. According to some embodiments of the present utility model, the light emitting layer may be formed by an inkjet printing method, and by providing the barrier 600, a plurality of grooves may be defined, a plurality of sub-pixels having the same light emitting color may be located in the same groove, the ink forming the light emitting layer may flow between the plurality of sub-pixels having the same light emitting color, and the ink forming the light emitting layer may be prevented from flowing to the sub-pixel positions having different light emitting colors, that is, the barrier may flow the material forming the light emitting layer in the first direction, and the material forming the light emitting layer may be prevented from flowing in the second direction.
According to an embodiment of the present utility model, the height H1 of the pixel defining layer 400 is 0.3-0.8 microns, and the height H2 of the retaining wall 600 is 1.5-2.5 microns. Therefore, when the light-emitting layer is manufactured by an ink-jet printing mode, the ink forming the light-emitting layer can flow among a plurality of sub-pixels with the same light-emitting color, and the ink forming the light-emitting layer is effectively prevented from flowing to the positions of the sub-pixels with different light-emitting colors.
According to an embodiment of the present utility model, when the light emitting layer is formed by the inkjet printing method, not only the light emitting layer is formed in the opening defined by the pixel defining layer 400, but also the light emitting layer is formed in the gap between adjacent openings, that is, the light emitting layer is formed on the pixel defining layer 400 between adjacent sub-pixels having the same emission color. That is, the orthographic projection area of the light emitting layer of the plurality of sub-pixels having the same light emitting color in the pixel island 100 on the substrate 200 is larger than the product of the number of the openings distributed along the first direction and the opening area.
According to an embodiment of the present utility model, the display panel further includes a color filter located at a side of the pixel island 100 away from the substrate 200; the color filter comprises a plurality of color blocks arranged at intervals and a black matrix arranged between the adjacent color blocks, and the orthographic projection of the color blocks on the substrate 200 is at least partially overlapped with the orthographic projection of the sub-pixels on the substrate 200. The color filter can play a role in filtering light, and the display effect can be further improved.
According to an embodiment of the present utility model, the display panel further includes a plurality of lenses; the lens is located on the side of the color filter remote from the pixel island 100. Thus, the lens is located on the light-emitting surface side of the pixel island 100, and the left eye and the right eye of the viewer respectively receive two different 2D images due to the position difference generated by the pupil distance between the two eyes of the viewer, and the human brain perceives the different 2D images as 3D images after receiving the different 2D images seen by the left eye and the right eye.
In addition, the display panel may include, in addition to the above-described structure, the structure and components that a conventional display panel must have, and are not described in detail herein.
The utility model also provides a display device comprising the display panel. Thus, the display device has all the features and advantages of the display panel described above, and will not be described herein.
It should be noted that, in the present specification, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present specification, the descriptions of the terms "one embodiment," "another embodiment," "some embodiments," "example," "specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (11)
1. The display panel is characterized by comprising a plurality of sub-pixels, wherein the sub-pixels with the same luminous color are arranged along a first direction, the sub-pixels with different luminous colors are arranged along a second direction, the first direction is perpendicular to the second direction, and the first direction is parallel to a binocular connecting line of a viewer;
the lengths of the sub-pixels with different luminous colors in the first direction are equal;
the length of the sub-pixels of different emission colors in the second direction is configured to match the lifetime of the sub-pixels of different emission colors.
2. The display panel of claim 1, wherein the display panel comprises a plurality of pixel islands arranged in an array, the pixel islands comprising a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels;
the length of the second color sub-pixel in the second direction is greater than the length of the first color sub-pixel in the second direction, and the length of the second color sub-pixel in the second direction is greater than the length of the third color sub-pixel in the second direction.
3. The display panel of claim 2, wherein a length of the first color sub-pixel in the second direction is equal to a length of the third color sub-pixel in the second direction;
the first color is red, the second color is green, and the third color is blue.
4. The display panel according to claim 1, wherein the sub-pixels of the same emission color are equal in length in the first direction, and the sub-pixels of the same emission color are equal in length in the second direction.
5. The display panel of claim 2, further comprising a substrate, wherein the subpixels are located at one side of the substrate;
the sub-pixel includes an anode, a cathode, and a light emitting layer between the anode and the cathode;
the cathode is positioned on one side of the light-emitting layer away from the substrate;
the display panel further includes a pixel defining layer located on a side of the anode remote from the substrate; the pixel defining layer is provided with a plurality of openings which are arranged at intervals and at least partially overlap with the anode.
6. The display panel of claim 5, further comprising a wall on a side of the pixel defining layer away from the substrate, the wall extending in the first direction, the wall being between adjacent sub-pixels having different emission colors.
7. The display panel of claim 6, wherein the pixel defining layer has a height of 0.3-0.8 microns and the retaining wall has a height of 1.5-2.5 microns.
8. The display panel according to claim 5, wherein a forward projection area of the light emitting layer of the plurality of sub-pixels having the same light emitting color in the pixel island on the substrate is larger than a product of the number of the openings distributed along the first direction and the opening area.
9. The display panel of claim 5, further comprising a color filter located on a side of the pixel island away from the substrate;
the color filter comprises a plurality of color blocks arranged at intervals and a black matrix arranged between the adjacent color blocks, and the orthographic projection of the color blocks on the substrate is at least partially overlapped with the orthographic projection of the sub-pixels on the substrate.
10. The display panel of claim 9, further comprising a plurality of lenses;
the lens is positioned on one side of the color filter away from the pixel island.
11. A display device, characterized in that the display device comprises a display panel according to any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320279834.5U CN219876764U (en) | 2023-02-14 | 2023-02-14 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320279834.5U CN219876764U (en) | 2023-02-14 | 2023-02-14 | Display panel and display device |
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| Publication Number | Publication Date |
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| CN219876764U true CN219876764U (en) | 2023-10-20 |
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| CN202320279834.5U Active CN219876764U (en) | 2023-02-14 | 2023-02-14 | Display panel and display device |
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