CN115734685A - Display panel and display device - Google Patents
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- CN115734685A CN115734685A CN202211525875.4A CN202211525875A CN115734685A CN 115734685 A CN115734685 A CN 115734685A CN 202211525875 A CN202211525875 A CN 202211525875A CN 115734685 A CN115734685 A CN 115734685A
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Abstract
The application discloses a display panel and a display device. The display panel includes pixel groups, each of which includes a center pixel and six sub-pixels. The central pixel and the sub-pixels are arranged in a hexagon shape, and the boundary of any sub-pixel close to the central pixel is parallel to the boundary of the central pixel close to the sub-pixel. A polar coordinate system is established by taking the geometric center of the central pixel as a pole and taking a connecting line of one vertex of the central pixel and the geometric center of the central pixel as a polar axis. The sub-pixels and the central pixel arranged in the direction of the connecting line of the polar point and the geometric center of any sub-pixel and the direction of the reverse extension line of the polar point and any sub-pixel have at least two different colors. Through the mode, the display quality of the display panel can be improved.
Description
Technical Field
The present application relates to the field of display device technologies, and in particular, to a display panel and a display device.
Background
Display panels using Organic Light Emitting Diodes (OLEDs) are increasingly used in life with advantages of self-light emission, lightness and thinness. The OLED display panel has been widely used in the fields of smart phones, notebook computers, smart watches, televisions, and the like. In general, a display panel of an OLED is formed by sequentially stacking various material layers through a patterning process using a mask, photolithography, or the like. In the related art, a pixel group in a display panel usually includes pixels displaying three colors, and the pixels displaying three colors are arranged in a straight line at present, so that the color cross problem occurs at the edge of the display panel and the edge of a black display area, and the display quality of the display panel is affected.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can improve the display quality of the display panel.
In a first aspect, an embodiment of the present application provides a display panel. The display panel includes pixel groups each including a center pixel and six sub-pixels surrounding the center pixel. The central pixel and the sub-pixels are arranged in a hexagon shape, and the boundary of any sub-pixel close to the central pixel is parallel to the boundary of the central pixel close to the sub-pixel. The method comprises the steps of establishing a polar coordinate system by taking the geometric center of a central pixel as a pole and taking a connecting line between one vertex of the central pixel and the geometric center of the central pixel as a polar axis, setting the polar angle of the geometric center of a sub-pixel adjacent to the polar axis to be N, wherein N is equal to pi/6, and the polar angles of the geometric centers of the rest sub-pixels are respectively 3N, 5N, 7N, 9N and 11N. And setting the edge center distance of the central pixel as L, and setting the range of the pole diameter of the geometric center of each sub-pixel as 1.5L-3L. The sub-pixels and the central pixel arranged in the direction of the connecting line of the polar point and the geometric center of any sub-pixel and the direction of the reverse extension line of the polar point and any sub-pixel have at least two different colors.
Optionally, the central pixel is configured to display red, the sub-pixel with the geometric central polar angle N is configured to display blue, the sub-pixel with the geometric central polar angle 3N is configured to display red, the sub-pixel with the geometric central polar angle 5N is configured to display blue, the sub-pixel with the geometric central polar angle 7N is configured to display green, the sub-pixel with the geometric central polar angle 9N is configured to display blue, and the sub-pixel with the geometric central polar angle 11N is configured to display green.
Optionally, the central pixel is configured to display blue, the sub-pixel with the geometric central polar angle N is configured to display blue, the sub-pixel with the geometric central polar angle 3N is configured to display red, the sub-pixel with the geometric central polar angle 5N is configured to display blue, the sub-pixel with the geometric central polar angle 7N is configured to display green, the sub-pixel with the geometric central polar angle 9N is configured to display blue, and the sub-pixel with the geometric central polar angle 11N is configured to display green.
Optionally, the central pixel is used for displaying red, the sub-pixel with the geometric central polar angle N is used for displaying blue, the sub-pixel with the geometric central polar angle 3N is used for displaying blue, the sub-pixel with the geometric central polar angle 5N is used for displaying blue, the sub-pixel with the geometric central polar angle 7N is used for displaying red, the sub-pixel with the geometric central polar angle 9N is used for displaying green, and the sub-pixel with the geometric central polar angle 11N is used for displaying green.
Optionally, the shape of the central pixel and the six sub-pixels are both regular hexagons.
Alternatively, the areas of the six sub-pixels are the same as each other, and the areas of the sub-pixels are the same as the area of the center pixel.
Optionally, each of the central pixel and the sub-pixels includes a light emitting region and a non-light emitting region, wherein a difference between an area of the light emitting region in the central pixel and an area of the light emitting region in any one of the sub-pixels is greater than or equal to zero, and a difference between areas of the light emitting regions in different sub-pixels is greater than or equal to zero.
Optionally, the different sub-pixels have the same pole diameter at the geometric centers.
Optionally, the geometric center of the sub-pixel has a pole diameter of 2L.
In a second aspect, embodiments of the present application provide a display device. The display device comprises the display panel.
The beneficial effect of this application is: unlike the prior art, six sub-pixels are arranged around the central pixel, and with the geometric center of the central pixel as a pole, the sub-pixels can be arranged around the central pixel according to the coordinate law described above, thereby forming a pixel group. In a pixel group, the sub-pixels and the central pixel in the connecting line direction of the pole and the geometric center of any sub-pixel and the reverse extension line direction can display at least two different colors. Therefore, the sub-pixels and the central pixel which are arranged in the same direction can not be in the same color, so that the color edge and color crosstalk phenomena of the display panel during display are weakened, and the display quality of the display panel is improved.
Drawings
FIG. 1 is a schematic structural diagram of a pixel group of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a color arrangement of the pixel set of FIG. 1;
FIG. 3 is a schematic diagram of an embodiment of a color arrangement of the pixel set of FIG. 1;
FIG. 4 is a schematic diagram of one embodiment of a color arrangement of the pixel set of FIG. 1;
FIG. 5 is a schematic diagram of one embodiment of a color arrangement of the pixel set of FIG. 1;
fig. 6 is a schematic structural diagram of an embodiment of the pixel group in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In an OLED display panel, generally, a pixel group includes at least three sub-pixels displaying different colors, and the sub-pixels displaying different colors are arranged and combined in a certain manner. The current sub-pixel arrangement is usually arranged along a straight line, and when a plurality of pixel groups are combined, the pixel groups are usually arranged along a straight line in the row direction or the column direction. The arrangement results in that the sub-pixels of the same color are in the same straight line, and thus color fringing occurs at the edge of the display panel when the display panel is displaying. Moreover, when the display panel displays black, the color cross phenomenon is also generated at the edge of the black area due to the above reasons, and the display quality of the display panel is seriously reduced. In order to improve the above technical problem, the present application may provide the following embodiments.
The application provides a display device. The display device includes a main body, a processor and a display panel, the processor and the display panel are mounted on the main body, and the processor is connected with the display panel. The processor may be any device having a computing power or a data processing power, and is not particularly limited. The processor can convert the information of the preset picture to be displayed, which is input by other equipment, into a corresponding data signal or a scanning signal, and transmit the signal to the display panel, so that the display panel can display the corresponding preset picture. The display panel can be described as follows.
Referring to fig. 1, an exemplary structure of a display panel is provided in the display panel embodiments of the present application. The display panel comprises pixel groups 10, each pixel group 10 comprising a central pixel 11 and six sub-pixels 12 surrounding the central pixel 11. Wherein the central pixel 11 and the six sub-pixels 12 may be used for displaying at least three different colors. The three different colors are red, green and blue, i.e. the three primary colors of light. The sub-pixels 12 displaying the three colors may be combined differently so that the pixel group 10 can represent a plurality of different colors. The plurality of pixel groups 10 may be arranged and combined to form a display panel, and each pixel group 10 displays a different color, so that the display panel can display a corresponding preset picture.
Taking a pixel group 10 as an example, an exemplary description will be given of the relative positional relationship between the sub-pixel 12 and the center pixel 11.
The central pixel 11 and the sub-pixels 12 are arranged in a hexagonal shape, and the boundary of any sub-pixel 12 near the central pixel 11 is parallel to the boundary of the central pixel 11 near the sub-pixel 12. With such an arrangement, the mutual influence between the sub-pixels 12 and the mutual influence between the boundaries between the central pixel 11 and the sub-pixels 12 can be reduced, so that the boundaries of the sub-pixels 12 can be arranged close to the central pixel 11, the arrangement of the sub-pixels 12 and the central pixel 11 can be concentrated, and the aperture ratio of the display panel can be increased.
Referring to fig. 1, a polar coordinate system is established by taking the geometric center of the central pixel 11 as a pole and taking a connection line between one vertex of the central pixel 11 and the geometric center of the central pixel 11 as a polar axis (refer to an X axis in fig. 1). For convenience of description, the position of the sub-pixel 12 in the display panel embodiment of the present application is described by the polar coordinate system formed in the above manner.
Let the polar angle of the geometric center of the sub-pixel 12 adjacent to the polar axis be N, i.e. the sub-pixel 12 located in the upper right corner of the central pixel 11 in fig. 1. The polar angles of the geometric centers of the remaining sub-pixels 12 are 3N, 5N, 7N, 9N, and 11N, respectively. Where N is equal to pi/6, in other words, the angle between the geometric centers of two adjacent sub-pixels 12 and the line connecting the geometric centers of the central pixel 11 is 60 °.
Let L be the edge-to-center distance of the central pixel 11, which is the distance from the boundary of the central pixel 11 to the geometric center of the central pixel 11. The geometric center of each sub-pixel 12 has a pole diameter in the range of 1.5L-3L. When the diameter of the pole at the geometric center of the sub-pixel 12 is smaller than 2L, the area of the sub-pixel 12 needs to be smaller than the area of the central pixel 11 to reduce the mutual influence between the arrangement of the sub-pixel 12 and the arrangement of the central pixel 11, and the smaller the diameter of the pole, the smaller the area of the sub-pixel 12. When the diameter of the geometric center of the sub-pixel 12 is greater than or equal to 2L, the area of the sub-pixel 12 may be equal to the area of the central pixel 11, or greater than the area of the central pixel 11, and is not particularly limited. If the geometric center of the sub-pixel 12 is too far from the central pixel 11, the space required by one pixel group 10 is too large, and the resolution of the display panel is reduced. If the geometric center of the sub-pixel 12 is too close to the central pixel 11, the area of the sub-pixel 12 is too small relative to the central pixel 11, which may reduce the color display capability of the pixel group 10. Alternatively, the distance L between the centers of the central pixels 11 can be arbitrarily selected from a range of 0.01 mm to 10 mm, such as 0.16 mm, 0.25 mm, or 0.5 mm.
Referring to fig. 1 to 5, R in the drawings represents red G and green B represents blue. Referring to fig. 1, the sub-pixel 12 and the central pixel 11, in which the line connecting the pole and the geometric center of the arbitrary sub-pixel 12 and the direction of the reverse extension thereof are arranged, have at least two different colors. Having two different colors means that the center pixel 11 and the sub-pixels 12 arranged in a straight line as described above display at least two different colors. In this way, the sub-pixels 12 arranged in the same direction in the display panel are not in the same color, so that the color fringing and color cross over phenomena of the display panel during displaying can be reduced, and the display quality of the display panel can be improved.
Specifically, the specific color distribution of the center pixel 11 and the sub-pixels 12 in one pixel group 10 can be made with reference to the following embodiments.
Referring to fig. 2, in an embodiment, the central pixel 11 is configured to display red, the sub-pixel 12 with the geometric central polar angle N is configured to display blue, the sub-pixel 12 with the geometric central polar angle 3N is configured to display red, the sub-pixel 12 with the geometric central polar angle 5N is configured to display blue, the sub-pixel 12 with the geometric central polar angle 7N is configured to display green, the sub-pixel 12 with the geometric central polar angle 9N is configured to display blue, and the sub-pixel 12 with the geometric central polar angle 11N is configured to display green. Wherein, the sub-pixel 12 and the central pixel 11 arranged in the connecting line direction of the pole and the geometric center of any sub-pixel 12 and the reverse extension line direction thereof have at least two different colors. For example, in fig. 2, the colors displayed by the sub-pixel 12 and the central pixel 11 are blue, red and green respectively on the line connecting the pole and the geometric center of the sub-pixel 12 with the polar angle N and the reverse extension line thereof. The color distribution of the sub-pixels 12 on the connection line between the poles and the other sub-pixels 12 and the reverse extension line thereof can be obtained by referring to the above description and the labels in fig. 2, and will not be described herein again. After the pixel groups 10 arranged in the above manner are arranged and combined, the phenomenon that the same color appears on the same straight line does not occur, so that the color fringes and the color cross phenomenon of the display panel are weakened, and the display quality of the display panel is improved.
Referring to fig. 3, in an embodiment, the central pixel 11 is configured to display blue, the sub-pixel 12 with the geometric central polar angle N is configured to display blue, the sub-pixel 12 with the geometric central polar angle 3N is configured to display red, the sub-pixel 12 with the geometric central polar angle 5N is configured to display blue, the sub-pixel 12 with the geometric central polar angle 7N is configured to display green, the sub-pixel 12 with the geometric central polar angle 9N is configured to display blue, and the sub-pixel 12 with the geometric central polar angle 11N is configured to display green. Wherein, the sub-pixel 12 and the central pixel 11 arranged in the connecting line direction of the pole and the geometric center of any sub-pixel 12 and the reverse extension line direction have at least two different colors. For example, in fig. 3, the colors displayed by the sub-pixel 12 and the central pixel 11 are blue, blue and green respectively on the line connecting the pole and the geometric center of the sub-pixel 12 with the polar angle N and the reverse extension line thereof. The color distribution of the sub-pixels 12 on the line connecting the poles with the other sub-pixels 12 and the opposite extension lines thereof can be obtained by referring to the above description and the labels in fig. 3, and will not be described herein again. After the pixel groups 10 arranged in the above manner are arranged and combined, the phenomenon that the same color appears on the same straight line does not occur, so that the color edge and color crosstalk phenomenon of the display panel are weakened, and the display quality of the display panel is improved. Since the average lifetime of the blue pixels is shorter than that of the other colors, the light emitting efficiency of the blue pixels will be reduced first, and in this embodiment, the blue color can be compensated by providing a larger number of blue pixels, so as to improve the display effect of the pixel group 10.
Referring to fig. 4, in an embodiment, the central pixel 11 is used for displaying red, the sub-pixel 12 with geometric central polar angle N is used for displaying blue, the sub-pixel 12 with geometric central polar angle 3N is used for displaying blue, the sub-pixel 12 with geometric central polar angle 5N is used for displaying blue, the sub-pixel 12 with geometric central polar angle 7N is used for displaying red, the sub-pixel 12 with geometric central polar angle 9N is used for displaying green, and the sub-pixel 12 with geometric central polar angle 11N is used for displaying green. Wherein, the sub-pixel 12 and the central pixel 11 arranged in the connecting line direction of the pole and the geometric center of any sub-pixel 12 and the reverse extension line direction have at least two different colors. For example, in fig. 4, the colors displayed by the sub-pixel 12 and the central pixel 11 are blue, red and red respectively on the line connecting the pole and the geometric center of the sub-pixel 12 with the polar angle N and the reverse extension line thereof. The color distribution of the sub-pixels 12 on the connection line between the poles and the other sub-pixels 12 and the reverse extension line thereof can be obtained by referring to the above description and the labels in fig. 4, and will not be described herein again. After the pixel groups 10 arranged in the above manner are arranged and combined, the phenomenon that the same color appears on the same straight line does not occur, so that the color fringes and the color cross phenomenon of the display panel are weakened, and the display quality of the display panel is improved.
Referring to fig. 5, in an embodiment, the central pixel 11 is configured to display blue, the sub-pixel 12 with the geometric central polar angle N is configured to display red, the sub-pixel 12 with the geometric central polar angle 3N is configured to display blue, the sub-pixel 12 with the geometric central polar angle 5N is configured to display green, the sub-pixel 12 with the geometric central polar angle 7N is configured to display green, the sub-pixel 12 with the geometric central polar angle 9N is configured to display blue, and the sub-pixel 12 with the geometric central polar angle 11N is configured to display red. In this embodiment, the same color is arranged in the column direction (the straight line where the polar angle is pi/2), so that the same color distribution in the pixel group 10 can be relatively concentrated, the vapor deposition process can be facilitated, and the mutual penetration between different colors can be reduced. When the hexagonal center pixel 11 and the hexagonal sub-pixel 12 are combined, the sub-pixels 12 between the adjacent pixel groups 10 are arranged in a staggered manner, and after the pixel groups 10 are arranged and combined, red, green and blue colors alternately appear in the column direction. Therefore, the display panel with the pixel group 10 arranged and combined in this embodiment also has less phenomenon that the same color is located on the same straight line, and can also improve the color fringing and color cross-over phenomenon.
On the basis of the above embodiments, further exemplary descriptions are made of the center pixel 11 and the sub-pixel 12.
The central pixel 11 and the six sub-pixels 12 are each in the shape of a regular hexagon. The regular hexagonal shape enables the central pixel 11 and the sub-pixels 12 to occupy a small space when they are arranged and combined. In addition, when the pixel groups 10 are arranged and combined, the pixel groups can be densely laid, and the aperture ratio of the display panel can be increased. Further, the different sub-pixels 12 have the same pole diameter at the geometric center. This enables better coordination of the emission between the different sub-pixels 12 and the emission of the different sub-pixels 12 with the emission of the central pixel 11, enabling the pixel group 10 to better exhibit different colors. The geometric center of the sub-pixels 12 has a pole diameter of 2L, the areas of the six sub-pixels 12 are the same as each other, and the area of the sub-pixel 12 is the same as the area of the center pixel 11. Therefore, the arrangement of the sub-pixels 12 and the central pixel 11 is regular, and the production and the manufacture of the display panel can be facilitated.
Referring to fig. 6, in an embodiment, each of the central pixel 11 and the sub-pixel 12 includes a light emitting region 101 and a non-light emitting region 102, and specifically, the light emitting region 101 may be an opening region in a pixel defining layer of the sub-pixel 12, and the non-light emitting region 102 may be a pixel defining layer. The difference between the area of the light emitting region 101 in the central pixel 11 and the area of the light emitting region 101 in any sub-pixel 12 is greater than or equal to zero, and the difference between the areas of the light emitting regions 101 in different sub-pixels 12 is greater than or equal to zero. In other words, the sizes of the areas of the light emitting regions 101 in the central pixel 11 and the sub-pixels 12 can be adjusted so that different sub-pixels 12 have light emitting regions 101 with different areas. With this arrangement, the size of the light emitting region 101 of the sub-pixel 12 and the central pixel 11 can be changed according to the display color of the sub-pixel and the central pixel, and the color of the combination of the light emission of the central pixel 11 and the light emission of the sub-pixel 12 can be changed. Or the area of the light emitting region 101 is designed according to the life of the central pixel 11 or the sub-pixel 12 displaying different colors, so that the light emitting efficiency decay rates of different sub-pixels 12 and the central pixel 11 are uniform to improve the uniformity of light emission.
The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.
Claims (10)
1. A display panel, comprising:
pixel groups, each pixel group including a central pixel and six sub-pixels surrounding the central pixel; the central pixel and the sub-pixels are arranged in a hexagon shape, and the boundary of any sub-pixel close to the central pixel is parallel to the boundary of the central pixel close to the sub-pixel;
establishing a polar coordinate system by taking the geometric center of the central pixel as a pole and a connecting line of one vertex of the central pixel and the geometric center of the central pixel as a polar axis, setting a polar angle of the geometric center of the sub-pixel adjacent to the polar axis to be N, wherein N is equal to pi/6, and polar angles of the geometric centers of the rest sub-pixels are respectively 3N, 5N, 7N, 9N and 11N; and setting the edge-to-center distance of the central pixel as L, wherein the range of the pole diameter of the geometric center of each sub-pixel is 1.5L-3L, and the sub-pixels and the central pixel which are arranged in the connecting line direction of the pole points and the geometric center of any sub-pixel and the reverse extension line direction of the pole points and the geometric center of any sub-pixel have at least two different colors.
2. The display panel according to claim 1, characterized in that:
the central pixel is used for displaying red, the sub-pixels with the geometric central polar angle of N are used for displaying blue, the sub-pixels with the geometric central polar angle of 3N are used for displaying red, the sub-pixels with the geometric central polar angle of 5N are used for displaying blue, the sub-pixels with the geometric central polar angle of 7N are used for displaying green, the sub-pixels with the geometric central polar angle of 9N are used for displaying blue, and the sub-pixels with the geometric central polar angle of 11N are used for displaying green.
3. The display panel according to claim 1, characterized in that:
the central pixel is used for displaying blue, the sub-pixel with the geometric central polar angle of N is used for displaying blue, the sub-pixel with the geometric central polar angle of 3N is used for displaying red, the sub-pixel with the geometric central polar angle of 5N is used for displaying blue, the sub-pixel with the geometric central polar angle of 7N is used for displaying green, the sub-pixel with the geometric central polar angle of 9N is used for displaying blue, and the sub-pixel with the geometric central polar angle of 11N is used for displaying green.
4. The display panel according to claim 1, characterized in that:
the central pixel is used for displaying red, the sub-pixels with the geometric central polar angle of N are used for displaying blue, the sub-pixels with the geometric central polar angle of 3N are used for displaying blue, the sub-pixels with the geometric central polar angle of 5N are used for displaying blue, the sub-pixels with the geometric central polar angle of 7N are used for displaying red, the sub-pixels with the geometric central polar angle of 9N are used for displaying green, and the sub-pixels with the geometric central polar angle of 11N are used for displaying green.
5. The display panel according to claim 1, characterized in that:
the shapes of the central pixel and the six sub-pixels are all regular hexagons.
6. The display panel according to claim 1, characterized in that:
the areas of the six sub-pixels are identical to each other, and the areas of the sub-pixels are identical to the area of the center pixel.
7. The display panel according to claim 6, wherein:
the central pixel and the sub-pixels both comprise a light emitting area and a non-light emitting area, wherein the difference between the area of the light emitting area in the central pixel and the area of the light emitting area in any one of the sub-pixels is greater than or equal to zero, and the difference between the areas of the light emitting areas in different sub-pixels is greater than or equal to zero.
8. The display panel according to claim 1, characterized in that:
and the polar diameters of the positions of the geometric centers of the different sub-pixels are equal.
9. The display panel according to claim 8, wherein:
the pole diameter of the geometric center of the sub-pixel is 2L.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202211525875.4A CN115734685A (en) | 2022-11-30 | 2022-11-30 | Display panel and display device |
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| CN102855820A (en) * | 2011-06-30 | 2013-01-02 | 三星显示有限公司 | Organic light emitting display device |
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