CN114420739A - Pixel structure, display panel and display device - Google Patents
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- 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
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- 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
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
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Abstract
The application relates to the technical field of display, in particular to a pixel structure, a display panel and a display device, wherein the pixel structure comprises a plurality of first pixel units and a plurality of second pixel units, the first pixel units and the second pixel units are respectively triangular, the first pixel units and the second pixel units are alternately arranged in an array manner, the first pixel units comprise first color sub-pixels, the lower bottom edges of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel extend along one side of the triangle respectively, each pixel unit can exist independently or can be matched with a plurality of peripheral pixel units together, the first pixel units are mirrored and/or rotated to form the second pixel units, the overall layout of the pixel structure displays a picture under a regular state, the appearance of gratings is reduced, and the panel display is improved to achieve the optimal display effect of high resolution.
Description
Technical Field
The application relates to the technical field of display, in particular to a pixel structure, a display panel and a display device.
Background
Because the high resolution can display more exquisite colors and more image details, and can bring better visual experience to users, the display equipment with the high resolution is more and more favored by the users, and the organic light-emitting diode display can realize the display function without a backlight source by virtue of the characteristic of self-luminescence, becomes the first choice of the current display device, and meets the requirements of people on lightness, thinness and energy conservation.
The structure of the OLED display device mainly comprises: the substrate is used for manufacturing sub-pixels which are arranged in a matrix on the substrate, wherein each sub-pixel (R, G, B) generally forms an organic electroluminescent structure at the corresponding sub-pixel position of the array substrate by using an organic material through a high-precision metal mask plate by utilizing an evaporation film forming technology. At present, the traditional RGB pixel arrangement structure causes low pixel density display, and a grid phenomenon may occur, so that the experience effect of people is influenced.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the technical problems that the display effect of the existing display device is poor and the grid phenomenon is frequent, the application provides a pixel structure, a display panel and a display device.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
a pixel structure, comprising:
a plurality of first pixel units, each of the first pixel units having a triangular shape;
a plurality of second pixel units, each of the second pixel units having a triangular shape;
the first pixel units are mirrored and/or rotated to form the second pixel units, and the first pixel units and the second pixel units are arranged in an alternating array;
the first pixel unit comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the lower bottom edges of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel extend along one edge of the triangle respectively.
Further, in some embodiments of the present disclosure, the first pixel unit has a regular triangle shape, and the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel are distributed around a center of the regular triangle.
Further, in some embodiments of the present disclosure, the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel respectively have a trapezoid shape with an equal upper base and a equal waist length.
Further, in some embodiments of the present disclosure, in the pixel structure, the colors of two sub-pixels adjacent to each other are different.
Further, in some embodiments of the present disclosure, each corner of three of the first pixel units and three of the second pixel units form a star-shaped pattern, and the first color sub-pixels, the second color sub-pixels, and the third color sub-pixels are alternately distributed along the outline of the star-shaped pattern.
Further, in some embodiments of the present disclosure, the areas of the second color sub-pixel and the third color sub-pixel are respectively larger than the area of the first color sub-pixel;
the first colorThe distance between the sub-pixel and the second color sub-pixel is L1The distance between the first color sub-pixel and the third color sub-pixel is L2And L is1＝L2。
Further, in some embodiments of the present disclosure, the first color sub-pixels, the second color sub-pixels, and the third color sub-pixels are alternately distributed in the extending direction of the array.
Further, in some embodiments of the present disclosure, a corner of the first color sub-pixel, the second color sub-pixel, and/or the third color sub-pixel is provided with a chamfer.
A display panel comprises the pixel structure.
A display device is provided with the display panel.
According to the technical scheme, the pixel structure has the advantages and positive effects that:
the scheme of the application provides a pixel structure, a display panel and a display device, wherein the display panel comprises the pixel structure, the display device is provided with the display panel, the pixel structure comprises a plurality of first pixel units and a plurality of second pixel units, the first pixel units and the second pixel units are respectively triangular, the first pixel units and the second pixel units are alternately arranged in an array mode, the first pixel units comprise first color sub-pixels, second color sub-pixels and third color sub-pixels, the lower bottom edges of the first color sub-pixels, the second color sub-pixels and the third color sub-pixels are respectively arranged along one edge of the triangle in an extending mode, each pixel unit can exist independently or be matched with a plurality of peripheral pixel units, the first pixel units are mirrored and/or rotated to form the second pixel units, the overall layout of the pixel structure displays a picture in a regular state, the appearance of the grating is reduced, and the panel display is improved to achieve the best display effect of high resolution.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram illustrating a pixel structure according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating a pixel cell in a pixel structure according to an exemplary embodiment.
Fig. 3 is a schematic diagram illustrating a first mask for processing a first color sub-pixel of a pixel structure according to an exemplary embodiment.
Fig. 4 is a schematic diagram illustrating a second mask for processing a second color sub-pixel of a pixel structure according to an exemplary embodiment.
Fig. 5 is a schematic diagram of a second mask for processing a second color sub-pixel of a pixel structure according to an exemplary embodiment.
Wherein the reference numerals are as follows:
1-a first color sub-pixel; 2-a second color sub-pixel; 3-a third color sub-pixel; 4-a first pixel cell; 5-a second pixel cell; 6-a star pattern;
7-a first mask plate; 71-a first opening;
8-a second mask plate; 81-a second opening;
9-a third mask plate; 91-third opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application are within the scope of the present application without inventive efforts, and therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention but only to represent selected embodiments of the present invention. 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 invention.
Because high resolution can display finer colors and more image details, and can bring better visual experience to users, high-resolution display devices are increasingly favored by users, and Organic light-emitting diode (OLED) displays can realize display functions by virtue of the characteristic of self-luminescence without backlight sources, become the current preferred display devices, and meet the requirements of people on lightness, thinness and energy conservation.
The structure of the OLED display device mainly comprises: the substrate is used for manufacturing sub-pixels which are arranged in a matrix on the substrate, wherein each sub-pixel (R, G, B) generally forms an organic electroluminescent structure at the corresponding sub-pixel position of the array substrate by using an organic material through a high-precision metal mask plate by utilizing an evaporation film forming technology. At present, the traditional RGB pixel arrangement structure causes low PPI display, and a grid phenomenon may occur, which affects the experience effect of people.
In order to solve the technical problems of poor display effect and frequent grid phenomenon of the existing display device, the application provides a pixel structure, a display panel and a display device, wherein the display panel comprises the pixel structure, the display device is provided with the display panel, the pixel structure comprises a first pixel unit 4 and a second pixel unit 5, the first pixel unit 4 is triangular, the first pixel unit 4 is provided with a plurality of the first pixel units 4, the second pixel unit 5 is provided with a plurality of the second pixel units 5, the first pixel unit 4 and the second pixel unit 5 are alternately arranged in an array, the first pixel unit 4 comprises a first color sub-pixel 1, a second color sub-pixel 2 and a third color sub-pixel 3, the lower bottom edges of the first color sub-pixel 1, the second color sub-pixel 2 and the third color sub-pixel 3 are respectively arranged along one side of the triangle, each pixel unit can independently exist or can be matched with several peripheral pixel units, the first pixel unit 4 is mirrored and/or rotated to form a second pixel unit 5, the whole layout of the pixel structure shows a picture under a regular state, the appearance of gratings is reduced, and the panel display is improved to achieve the best display effect of high resolution.
Fig. 1 is a schematic diagram illustrating a pixel structure according to an exemplary embodiment. Fig. 2 is a schematic diagram illustrating a pixel cell in a pixel structure according to an exemplary embodiment. Fig. 3 is a schematic diagram of a first mask 7 for processing a first color sub-pixel 1 of a pixel structure according to an exemplary embodiment. Fig. 4 is a schematic diagram of a second mask 8 for processing a second color sub-pixel 2 of a pixel structure according to an exemplary embodiment. Fig. 5 is a schematic diagram of a second mask 8 for processing a second color sub-pixel 2 of a pixel structure according to an exemplary embodiment.
The pixel structure comprises a first pixel unit 4, a plurality of second pixel units 5 and a plurality of first pixel units 4, wherein the first pixel units 4 are triangular, the first pixel units 4 are provided with a plurality of second pixel units 5, the second pixel units 5 are provided with a plurality of second pixel units 5, the first pixel units 4 are mirrored and/or rotated to form the second pixel units 5, the first pixel units 4 and the second pixel units 5 are alternately arranged in an array mode, and the first pixel units 4 and the second pixel units 5 are mutually matched and do not interfere with each other.
In the specific example the first pixel cell 4 is in the shape of a regular triangle, the first pixel cell 4 is first mirrored and then rotated to form the second pixel cell 5.
The first pixel unit 4 includes a first color sub-pixel 1, a second color sub-pixel 2, and a third color sub-pixel 3, lower bases of the first color sub-pixel 1, the second color sub-pixel 2, and the third color sub-pixel 3 extend along one side of a triangle, the first color sub-pixel 1, the second color sub-pixel 2, and the third color sub-pixel 3 are distributed around a center of the regular triangle, after the first color sub-pixel 1 rotates by 120 °, a base of the first color sub-pixel 1 is flush with a base of the second color sub-pixel 2, after the base of the second color sub-pixel 2 rotates by 120 °, a base of the second color sub-pixel 2 is flush with a base of the third color sub-pixel 3, and after the third color sub-pixel 3 rotates by 120 °, a base of the third color sub-pixel 3 is flush with a base of the first color sub-pixel 1.
Referring to fig. 1, each corner of the three first pixel units 4 and the three second pixel units 5 forms a star pattern 6, the first pixel units 4 and the second pixel units 5 are respectively in a regular triangle shape, the pixel structure can also be described as being formed by a pixel unit array of a plurality of star patterns 6, the star pattern 6 further includes two first color sub-pixels 1, two second color sub-pixels 2 and two third color sub-pixels 3, and the first color sub-pixels 1, the second color sub-pixels 2 and the third color sub-pixels 3 are alternately distributed along the outline of the star patterns 6, and are matched with each other in the display process, so that the display effect of each other is not affected.
Further, in the embodiment of the present application, each of the first color sub-pixel 1, the second color sub-pixel 2 and the third color sub-pixel 3 has a trapezoid shape with an equal upper base and a equal waist length, the areas of the second color sub-pixel 2 and the third color sub-pixel 3 are respectively larger than that of the first color sub-pixel 1, and the distance between the first color sub-pixel 1 and the second color sub-pixel 2 is L1The distance between the first color sub-pixel 1 and the third color sub-pixel 3 is L2And L is1＝L2. Specifically, the pitch between two adjacent sub-pixels refers to the minimum distance between the edges of the sub-pixels close to each other, and as will be understood by those skilled in the art, the pitch between adjacent sub-pixels needs to be greater than or equal to the process limit distance to meet the process requirement. Under the condition of the same resolution, the adjacent positions of the first color sub-pixel 1 and the second color sub-pixel 2 and the adjacent positions of the first color sub-pixel 1 and the third color sub-pixel can increase the pixel opening area, reduce the driving current of the display device and further increase the service life of the display device.
In the display panel according to the embodiment of the present application, the pixel unit (the first pixel unit 4, the second pixel unit 5) refers to a minimum repetition unit that can be used to achieve the same light emission effect and function in the display panel. As shown in fig. 1, the first pixel units 4 and the second pixel units 5 are arranged in a horizontal direction and a vertical direction in an alternating array, the centers of the first pixel units 4 and the second pixel units 5 are arranged in a staggered manner in the horizontal direction, one edge of the triangle extends in the horizontal direction, and the centers of the first pixel units 4 and the second pixel units 5 are located on the same straight line in the vertical direction.
In some embodiments, it can be further understood by those skilled in the art that the first pixel unit 4 and the second pixel unit 5 are alternately arranged in an array in a first direction and a second direction, the first direction and the second direction are two directions perpendicular to each other on the same plane, the first pixel unit 4 and the second pixel unit 5 are respectively triangular, and one of the triangular shapes extends along the first direction or the second direction.
When the display panel is rectangular or square, the first direction or the second direction may be parallel to one side of the display panel, or may be neither parallel to nor perpendicular to any one side of the display panel, and in a normal use and placement state of the display panel, three sides of the triangle respectively extend obliquely (relative to the horizontal and vertical directions).
Two sub-pixels adjacent to the bottom edge at any position can present a hexagonal structure, the pixel structure can also be formed by a plurality of hexagonal pixel unit arrays, the first color sub-pixel 1 and the second color sub-pixel 2 form a first type hexagonal pixel unit, the first color sub-pixel 1 and the third color sub-pixel 3 form a second type hexagonal pixel unit, and the second color sub-pixel 2 and the third color sub-pixel 3 form a third type hexagonal pixel unit. The pixel units are perfectly attached to each other, and the pixel units are regularly arranged when seen from different extending directions.
In this embodiment, the arrangement is regular regardless of the triangular arrangement, the star-shaped pattern 6 arrangement, or the honeycomb hexagonal arrangement. In the pixel structure, the corresponding colors of two adjacent sub-pixels are different, so that the appearance of gratings is reduced, and the display effect of a panel is improved to achieve high resolution.
In some embodiments, the first color sub-pixel 1, the second color sub-pixel 2 and/or the third color sub-pixel 3 are provided with a chamfer at a corner. The color of light emitted by the first color sub-pixel 1, the color of light emitted by the second color sub-pixel 2 and the color of light emitted by the third color sub-pixel 3 are all different from each other. Further, the sub-pixels (the first color sub-pixel 1, the second color sub-pixel 2, and the third color sub-pixel 3) in the first pixel unit 4 and the second pixel unit 5 emit light including red light, green light, and blue light. The display panel can realize normal display of full-color images through uniform distribution of sub-pixels with different colors.
In a specific example, the first color sub-pixel 1 may emit green light, the second color sub-pixel 2 may emit red light, and the third color sub-pixel 3 may emit blue light. Considering that the area of the first color sub-pixel 1 is smaller than the area of the second color sub-pixel 2 and the third color sub-pixel 3, the area of the second color sub-pixel 2 is smaller than the area of the third color sub-pixel 3. In particular, for the organic light emitting diode display device, since the blue light emitting material generally has the lowest light emitting efficiency and a relatively short lifetime compared to red and green, the blue sub-pixel area may be larger than the red and green sub-pixel areas. In addition, since the human eye is more sensitive to green and the green emitting material is most efficient, the green sub-pixel area can be made minimal.
In other embodiments, the light emitting colors and the corresponding positions of the first color sub-pixel 1, the second color sub-pixel 2 and the third color sub-pixel 3 may not be limited to the above-mentioned manner, and those skilled in the art may perform the conversion according to actual needs, and are not limited specifically herein.
The embodiment of the application also provides a display panel, which comprises the pixel structure.
With reference to fig. 3 to 5, the present application provides a mask assembly, the mask assembly is used for manufacturing the display panel of the foregoing embodiment, the mask assembly includes a first mask 7, a second mask 8 and a third mask 9, the first mask 7 includes a first substrate and a first opening 71 disposed on the first substrate, the first opening 71 corresponds to the first color sub-pixel 1, the second mask 8 includes a second substrate and a second opening 81 disposed on the second substrate, the second opening 81 corresponds to the second color sub-pixel 2, the third mask 9 includes a third substrate and a third opening 91 disposed on the third substrate, and the third opening 91 corresponds to the third color sub-pixel 3.
The mask assembly can be manufactured to form a display panel, any one first color sub-pixel 1 of the display panel can form an independent pixel unit with an adjacent second color sub-pixel 2 and a third color sub-pixel 3 adjacent to the first color sub-pixel 1 and the second color sub-pixel 2, and therefore good display effect can be achieved among the sub-pixels.
In the embodiment of the application, the first substrate, the second substrate and the third substrate are made of metal materials, meanwhile, the first mask plate 7, the second mask plate 8 and the third mask plate 9 can be high-precision metal mask plates, can be applied to an evaporation process, and form a corresponding display panel through organic light-emitting materials corresponding to evaporation pixel patterns.
The mask assembly further comprises a covering mask plate, a supporting mask plate and an alignment mask plate. The first mask plate 7, the second mask plate 8 and the third mask plate 9 can be combined with a covering mask plate, a supporting mask plate and an alignment mask plate to form a mask integrated frame, and the combined mask integrated frame can be respectively placed into corresponding evaporation chambers to evaporate organic light-emitting materials corresponding to the sub-pixels. Specifically, a pattern of one sub-pixel can be formed by evaporation each time, a pattern of one sub-pixel is evaporated and then another pattern of the other sub-pixel is evaporated, and the patterns of the three sub-pixels are sequentially formed to obtain the display panel of the embodiment of the present application.
Of course, in other embodiments, the display panel is not limited to be formed by an evaporation process, and may be formed by a photolithography process, an etching process, or the like as needed. Meanwhile, the order of preparing the three sub-pixels is determined according to actual conditions by considering the properties of various materials, environments and other factors.
The embodiment of the application also provides a display device provided with the display panel.
In summary, the present disclosure provides a pixel structure, a display panel and a display device, the pixel structure includes a first pixel unit 4 and a second pixel unit 5, the first pixel unit 4 is in a regular triangle shape, the first pixel unit 4 is formed by mirroring and/or rotating the second pixel unit 5, the first pixel unit 4 and the second pixel unit 5 are alternately arranged in an array, the first pixel unit 4 includes a first color sub-pixel 1, a second color sub-pixel 2 and a third color sub-pixel 3 located in the virtual regular triangle, each sub-pixel is in an isosceles trapezoid shape, the lengths of the upper base and the waist of the trapezoid are also equal, the first color sub-pixel 1, the second color sub-pixel 2 and the third color sub-pixel 3 are alternately distributed in the extending direction of the array, the sub-pixels can be arranged in a triangle, star or honeycomb hexagon shape after being combined, the pixel units (the first pixel unit 4 and the second pixel unit 5) can be independent, and can also be matched with a plurality of adjacent pixel units together, an irregular state is presented in a single pixel, the whole layout presents a picture in a regular state, the appearance of gratings is reduced, and the panel display is improved to achieve the best display effect of high resolution.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the general inventive concept. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A pixel structure, comprising:
a plurality of first pixel cells (4), each of the first pixel cells (4) having a triangular shape;
a plurality of second pixel cells (5), each of the second pixel cells (5) having a triangular shape;
the first pixel units (4) are mirrored and/or rotated to form the second pixel units (5), and the first pixel units (4) and the second pixel units (5) are arranged in an alternating array;
the first pixel unit (4) comprises a first color sub-pixel (1), a second color sub-pixel (2) and a third color sub-pixel (3), and the lower bases of the first color sub-pixel (1), the second color sub-pixel (2) and the third color sub-pixel (3) extend along one side of the triangle respectively.
2. The pixel structure according to claim 1, wherein the first pixel unit (4) is in the shape of a regular triangle, and the first color sub-pixel (1), the second color sub-pixel (2) and the third color sub-pixel (3) are distributed around the center of the regular triangle.
3. A pixel structure according to claim 1, wherein the first color sub-pixel (1), the second color sub-pixel (2) and the third color sub-pixel (3) have a trapezoidal shape with equal upper base and waist length, respectively.
4. The pixel structure according to claim 1, wherein the corresponding colors of two sub-pixels adjacent to each other are different in the pixel structure.
5. A pixel structure as claimed in claim 3, characterized in that three first pixel cells (4) and three second pixel cells (5) each have a corner forming a star-shaped pattern (6), the first color sub-pixels (1), the second color sub-pixels (2) and the third color sub-pixels (3) being alternately distributed along the contour of the star-shaped pattern (6).
6. A pixel structure according to claim 1, wherein the second color sub-pixel (2) and the third color sub-pixel (3) are larger in area than the first color sub-pixel (1), respectively;
the distance between the first color sub-pixel (1) and the second color sub-pixel (2) is L1The distance between the first color sub-pixel (1) and the third color sub-pixel (3) is L2And L is1＝L2。
7. A pixel structure as claimed in claim 1, characterized in that the first color sub-pixels (1), the second color sub-pixels (2) and the third color sub-pixels (3) are alternately distributed in the array extension direction.
8. A pixel structure according to any one of claims 1-7, characterized in that a corner of the first color sub-pixel (1), the second color sub-pixel (2) and/or the third color sub-pixel (3) is provided with a chamfer.
9. A display panel comprising a pixel structure according to any one of claims 1 to 8.
10. A display device characterized in that the display panel according to claim 9 is mounted.
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| CN207052607U (en) * | 2017-08-15 | 2018-02-27 | 上海天马有机发光显示技术有限公司 | A kind of display panel, mask plate and display device |
| US20190164510A1 (en) * | 2017-11-30 | 2019-05-30 | Xiamen Tianma Micro-Electronics Co., Ltd | Display substrate, display panel and display device |
| WO2019117507A1 (en) * | 2017-12-15 | 2019-06-20 | 조율호 | Display device having pyramid subpixel array structure |
| CN113314584A (en) * | 2021-06-25 | 2021-08-27 | 京东方科技集团股份有限公司 | Display panel, mask assembly and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036668A1 (en) * | 2022-08-16 | 2024-02-22 | 武汉华星光电半导体显示技术有限公司 | Pixel arrangement structure and display panel |
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