CN109904193A - Pixel arrangement structure, display panel and display device - Google Patents
Pixel arrangement structure, display panel and display device Download PDFInfo
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- CN109904193A CN109904193A CN201910017247.7A CN201910017247A CN109904193A CN 109904193 A CN109904193 A CN 109904193A CN 201910017247 A CN201910017247 A CN 201910017247A CN 109904193 A CN109904193 A CN 109904193A
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- 238000010586 diagram Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 10
- 239000003086 colorant Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The present invention discloses a kind of pixel arrangement structure, display panel and display device, is related to organic light emitting display technical field.The pixel arrangement structure includes: the repetitive unit of multiple rectangles of array arrangement, and each repetitive unit includes the first different sub-pixel of color, the second sub-pixel and third sub-pixel, and the quantity ratio of the first sub-pixel, the second sub-pixel and third sub-pixel is 1:2:2；Wherein, the first sub-pixel is quadrangle, and the first sub-pixel is placed in the middle in each repetitive unit, the second sub-pixel and third sub-pixel are distributed around the first sub-pixel.Using the technical solution in the embodiment of the present invention, the PPI of display panel can be improved.
Description
Technical Field
The invention relates to the technical field of organic light emitting display, in particular to a pixel arrangement structure, a display panel and a display device.
Background
An Organic Light-Emitting Diode (OLED) is an active Light-Emitting device. In order to realize full-color design of pixels, three sub-pixels of red, green and blue should be arranged in a pixel range, and specifically, each sub-pixel can be formed at a corresponding position of a substrate based on an evaporation film forming technology through a high-precision metal Mask plate (Mask). The key to manufacturing a high PPI (Pixels Per Inch) display panel is a mask plate made of a high-precision metal, and since the opening area of the mask plate has a lower specification limit and the manufacturing process is affected by a tolerance (tolerance), a gap (gap) needs to be reserved between the openings of adjacent sub-Pixels, so that the size of a single pixel cannot be made very small, the PPI of the display panel is reduced, and the display screen is not clear enough.
Disclosure of Invention
The embodiment of the invention provides a pixel arrangement structure, a display panel and a display device, which can improve the PPI of the display panel.
In a first aspect, an embodiment of the present invention provides a pixel arrangement structure, including: the pixel array comprises a plurality of rectangular repeating units arranged in an array, wherein each repeating unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color, and the number ratio of the first sub-pixel to the second sub-pixel to the third sub-pixel is 1:2: 2; the first sub-pixel is quadrilateral, and the first sub-pixel is centered in each repeating unit, and the second sub-pixel and the third sub-pixel are distributed around the first sub-pixel.
In one possible implementation of the first aspect, each of the two opposite sides of the first sub-pixel is equal in length.
In one possible implementation of the first aspect, the first sub-pixel unit is a diamond, preferably a square.
In one possible implementation of the first aspect, the center of the first sub-pixel coincides with the center of the repeating unit.
In a possible implementation manner of the first aspect, two diagonal vertices of the first sub-pixel are arranged in one-to-one correspondence with two opposite sides of the repeating unit, and each diagonal vertex is located on its own corresponding side; or, the four vertexes of the first sub-pixel are arranged in one-to-one correspondence with the four sides of the repeating unit, and each vertex is located on the side corresponding to the vertex.
In one possible embodiment of the first aspect, the second sub-pixels are symmetrically distributed with one diagonal line of the repeating unit as an axis of symmetry, and the third sub-pixels are symmetrically distributed with the other diagonal line of the repeating unit as an axis of symmetry.
In a possible embodiment of the first aspect, all second sub-pixels and all third sub-pixels in each repeating unit are arranged adjacently.
In one possible implementation manner of the first aspect, the first sub-pixel is a blue sub-pixel, the second sub-pixel is one of a red sub-pixel and a green sub-pixel, and the third sub-pixel is the other of the red sub-pixel and the green sub-pixel.
In a second aspect, embodiments of the present invention provide a display panel including the pixel arrangement structure as described above.
In a third aspect, embodiments of the present invention provide a display device including the pixel arrangement structure as described above.
In the embodiment of the invention, each rectangular repeating unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color, and the number ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel is 1:2:2, wherein the first sub-pixel is a quadrilateral and is located in the middle of the repeating unit, and the second sub-pixel and the third sub-pixel are distributed around the first sub-pixel, so that the plurality of second sub-pixels and the plurality of third sub-pixels in the repeating unit can share the first sub-pixel to realize a plurality of pixel units, for example, 2 second sub-pixels and 2 third sub-pixels can share 1 first sub-pixel to form 2 pixel units, thereby improving the space utilization rate in the repeating unit and improving the PPI of the display panel.
In addition, compared with the arrangement mode that the plurality of sub-pixels are only arranged in the transverse direction or the longitudinal direction, the arrangement mode that the first sub-pixel is taken as the center and the second sub-pixel and the third sub-pixel are distributed in a surrounding mode is adopted by the repeating unit in the embodiment of the invention, so that the shapes and the sizes of other sub-pixels can be changed according to the shape and the size of the first sub-pixel, the gap between the adjacent sub-pixels is reduced, the space utilization rate in the repeating unit is further improved, and the display effect of a sawtooth-shaped edge can be avoided.
Drawings
The present invention may be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which like or similar reference characters identify like or similar features.
Fig. 1 is a schematic diagram of a pixel arrangement structure of a display panel according to a first embodiment of the invention;
FIG. 1a is a schematic distribution diagram of R sub-pixels and G sub-pixels corresponding to FIG. 1;
FIG. 1b is a schematic diagram of another arrangement of R and G sub-pixels corresponding to FIG. 1;
fig. 2 is a schematic diagram of a pixel arrangement structure of a display panel according to a second embodiment of the invention;
fig. 3 is a schematic diagram of a pixel arrangement structure of a display panel according to a third embodiment of the invention;
fig. 4 is a schematic diagram of a pixel arrangement structure of a display panel according to a fourth embodiment of the invention;
fig. 5 is a schematic diagram of a pixel arrangement structure of a display panel according to a fifth embodiment of the invention;
fig. 6 is a schematic diagram of a pixel arrangement structure of a display panel according to a sixth embodiment of the invention;
fig. 7 is a schematic diagram of a pixel arrangement structure of a display panel according to a seventh embodiment of the invention;
fig. 8 is a schematic diagram of a pixel arrangement structure of a display panel according to an eighth embodiment of the invention;
fig. 9 is a schematic diagram of a pixel arrangement structure of a display panel according to a ninth embodiment of the invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention.
The invention provides a pixel arrangement structure, a display panel and a display device, which can be used for manufacturing a display screen of electronic equipment such as a PAD (PAD application data) or a mobile phone, and the pixel arrangement structure is reasonably designed to improve the space utilization rate of pixels, so that the PPI (point of interest) of the display panel is improved, and a picture looks clearer.
Fig. 1 is a schematic diagram of a pixel arrangement structure of a display panel according to a first embodiment of the present invention (only a part of the pixel structure is shown). As shown in fig. 1, the display panel includes a plurality of rectangular repeating units 100 arranged in an array, and each repeating unit 100 includes first, second, and third sub-pixels having different colors. The number ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel satisfies 1:2: 2.
The first sub-pixel is a quadrilateral, and in each repeating unit 100, the first sub-pixel is centered, and the second sub-pixel and the third sub-pixel are distributed around the first sub-pixel. The hatched portion in fig. 1 is schematically divided into 4 sub-regions as corresponding regions of two second sub-pixels and two third sub-pixels, respectively. Those skilled in the art can reasonably divide the corresponding regions of the two second sub-pixels and the two third sub-pixels according to actual needs, and the corresponding regions are not limited herein.
In practical use, the pixel arrangement structure is matched with the corresponding pixel driving circuit, so that the display effect that the two second sub-pixels and the two third sub-pixels share the first sub-pixel is realized.
In the embodiment of the invention, each rectangular repeating unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color, and the number ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel is 1:2:2, wherein the first sub-pixel is a quadrilateral and is located in the middle of the repeating unit, and the second sub-pixel and the third sub-pixel are distributed around the first sub-pixel, so that the plurality of second sub-pixels and the plurality of third sub-pixels in the repeating unit can share the first sub-pixel to realize a plurality of pixel units, for example, 2 second sub-pixels and 2 third sub-pixels can share 1 first sub-pixel to form 2 pixel units, thereby improving the space utilization rate in the repeating unit and improving the PPI of the display panel.
In addition, compared with the arrangement mode that the plurality of sub-pixels are only arranged in the transverse direction or the longitudinal direction, the arrangement mode that the first sub-pixel is taken as the center and the second sub-pixel and the third sub-pixel are distributed in a surrounding mode is adopted by the repeating unit in the embodiment of the invention, so that the shapes and the sizes of other sub-pixels can be changed according to the shape and the size of the first sub-pixel, the gap between the adjacent sub-pixels is reduced, the space utilization rate in the repeating unit is further improved, and the display effect of a sawtooth-shaped edge can be avoided.
In fig. 1, a small gap is formed between adjacent sub-pixels, and the illustration of the small gap portion is omitted in consideration that the gap does not affect the display effect of each sub-pixel and the overall resolution.
Further, in order to improve the space utilization rate in the repeating unit, the sum of the areas of the first sub-pixel, the two second sub-pixels and the two third sub-pixels should be as close as possible to the area of the whole repeating unit.
In each pixel unit according to the embodiment of the present invention, the light emission colors of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be any one of red (R), green (G), and blue (B), respectively.
Preferably, the first sub-pixel may be a B sub-pixel, and the area of the B sub-pixel may be larger than the areas of the R and G sub-pixels since the emission efficiency and lifetime of the blue light emitting material are the lowest.
The following describes in detail how the second sub-pixel and the third sub-pixel are distributed around the first sub-pixel, taking the first sub-pixel as the B sub-pixel, the second sub-pixel as the R sub-pixel, and the third sub-pixel as the G sub-pixel.
Fig. 1a is a schematic distribution diagram of R sub-pixels and G sub-pixels corresponding to fig. 1. As shown in fig. 1a, the R sub-pixels are symmetrically distributed about one diagonal line L1 of the repeating unit 100, and the G sub-pixels are symmetrically distributed about the other diagonal line L2 of the repeating unit 100.
With the arrangement, adjacent same-color sub-pixels do not exist around the R sub-pixel, the G sub-pixel or the B sub-pixel, so that the problem that partial light is strengthened due to the fact that the adjacent sub-pixels are the same-color sub-pixels can be solved, and the display effect of the display panel is uniform.
Fig. 1b is a schematic distribution diagram of another R sub-pixel and G sub-pixel corresponding to fig. 1. Such as
As shown in fig. 1b, all R sub-pixels and all G sub-pixels in each repeating unit are adjacently disposed.
In this way, the R sub-pixels or the G sub-pixels can be continuously distributed in the row or column direction of the display panel, so that one Mask opening can be shared during evaporation, the difficulty of the Mask process is reduced, and the R sub-pixels or the G sub-pixels are not limited by the lower limit of the Mask plate opening area specification.
The shape and position of the first sub-pixel will be described in detail below by taking the first sub-pixel as the B sub-pixel, the second sub-pixel as the R sub-pixel, and the third sub-pixel as the G sub-pixel.
Fig. 2 is a schematic diagram of a pixel arrangement structure of a display panel according to a second embodiment of the present invention (only a part of the pixel structure is shown). As shown in fig. 2, the B sub-pixel is a parallelogram, i.e. each opposite side has the same length. The areas of the B sub-pixel, the R sub-pixel and the G sub-pixel can be adjusted by those skilled in the art according to actual needs to satisfy the display effects under different requirements.
Fig. 3 is a schematic diagram of a pixel arrangement structure of a display panel according to a third embodiment of the present invention, (only a part of the pixel structure is shown). As shown in fig. 3, the B sub-pixel may be rectangular in shape. The areas of the two R sub-pixels shown in fig. 3 are not equal, the areas of the two G sub-pixels are not equal, and the R sub-pixel and the G sub-pixel are L-shaped. It should be noted that although the areas of the two R sub-pixels and the areas of the two G sub-pixels in each repeating unit 100 are not equal, fig. 3 may also be used as a usable pixel arrangement structure in view of the overall display effect of the display panel.
Fig. 4 is a schematic diagram of a pixel arrangement structure of a display panel according to a fourth embodiment of the present invention (only a part of the pixel structure is shown). Fig. 4 is different from fig. 3 in that the center of the B sub-pixel shown in fig. 4 coincides with the center of the repeating unit 100.
In the example of fig. 4, since the two R sub-pixels are symmetrically distributed with one diagonal line L1 of the repeating unit 100 as a symmetry axis, the two G sub-pixels are symmetrically distributed with the other diagonal line L2 of the repeating unit 100 as a symmetry axis, the areas of the two R sub-pixels are equal, and the areas of the two G sub-pixels are equal, the shapes and sizes of the openings of the masks of the two colors R and G are the same, and the masks need to be turned over by 180 degrees (both left and right) during evaporation.
That is to say, based on the scheme in fig. 4, the pixel PPI can be improved, and simultaneously, one Mask is shared by two colors, namely R and G, by turning the Mask by 180 degrees, so that the difficulty in manufacturing the pixel process is reduced.
Fig. 5 is a schematic diagram of a pixel arrangement structure of a display panel according to a fifth embodiment of the present invention (only a part of the pixel structure is shown). Fig. 5 is different from fig. 4 in that the B sub-pixel shown in fig. 4 is square.
In the example of fig. 5, since the two R sub-pixels are symmetrically distributed with one diagonal line of the repeating unit 100 as the symmetry axis, the two G sub-pixels are symmetrically distributed with the other diagonal line of the repeating unit 100 as the symmetry axis, and the areas of the two R sub-pixels and the two G sub-pixels are equal to each other, the openings of the masks of the two colors R and G have the same shape and size, and the masks need to be rotated by 90 degrees (both left-handed and right-handed) during evaporation.
That is to say, based on the scheme in fig. 5, while the pixel PPI is improved, one Mask can be shared by two colors, i.e., R and G, by turning the Mask by 180 degrees or rotating the Mask by 90 degrees, thereby further reducing the difficulty in manufacturing the pixel process.
Fig. 6 is a schematic diagram of a pixel arrangement structure of a display panel according to a sixth embodiment of the present invention (only a part of the pixel structure is shown). Fig. 6 is different from fig. 5 in that two diagonal vertices of the B sub-pixel are located on two opposite sides of the repeating unit 100, respectively. Based on the scheme, the two colors of R and G can share one Mask by turning the Mask by 180 degrees, so that the manufacturing difficulty of the pixel process is reduced.
Fig. 7 is a schematic diagram of a pixel arrangement structure of a display panel according to a seventh embodiment of the invention (only a part of the pixel structure is shown). Fig. 7 is different from fig. 6 in that four vertices of the B sub-pixel are located on four sides of the repeating unit 100, respectively, and in this case, the area of the B sub-pixel is the sum of the areas of the two R sub-pixels and the two G sub-pixels. Based on the scheme, the masks of the two colors of R and G can be turned by 180 degrees or rotated by 90 degrees to share one Mask, and the difficulty in manufacturing the pixel process is further reduced.
Fig. 8 is a schematic diagram of a pixel arrangement structure of a display panel according to an eighth embodiment of the present invention (only a part of the pixel structure is shown). As shown in fig. 8, the repeating unit 112 is rotated by 90 degrees (including left and right rotations) with respect to the repeating unit 100 such that two R sub-pixels or two G sub-pixels in the repeating units 100 and 112 are aligned.
For the whole display panel, the repeating units in the even columns can be rotated by 90 degrees relative to the repeating units in the odd columns, so that two R sub-pixels or two G sub-pixels of adjacent repeating units can share one Mask opening during evaporation, thereby reducing the difficulty of Mask process and enabling the R sub-pixels or the G sub-pixels not to be limited by the lower limit of the Mask opening area specification.
Fig. 9 is a schematic diagram of a pixel arrangement structure of a display panel according to a ninth embodiment of the invention (only a part of the pixel structure is shown). As shown in fig. 9, the repeating unit 112 is rotated by 90 degrees (including left and right rotations) with respect to the repeating unit 100, the repeating unit 121 is rotated by 90 degrees (including left and right rotations) with respect to the repeating unit 100, and the repeating unit 121 is not rotated with respect to the repeating unit 100, such that four R sub-pixels or four G sub-pixels in the repeating units 100, 112, 121, and 122 are aligned.
For the whole display panel, the repeating units in the even-numbered columns and the odd-numbered rows and the repeating units in the even-numbered columns and the odd-numbered columns can be rotated by 90 degrees relative to the initial repeating unit 100 at the (1,1) position, and after the repeating units are rotationally arranged, the four R sub-pixels or the four G sub-pixels of the adjacent repeating units are arranged into a square, so that a Mask opening with a square structure can be shared during evaporation, the difficulty of the Mask process is further reduced, and the R sub-pixels or the G sub-pixels are not limited by the lower limit of the specification of the opening area of the Mask plate.
In addition, the embodiment of the invention also provides a display panel, which adopts the pixel arrangement structure.
Also, an embodiment of the present invention provides a display device, which adopts the pixel arrangement structure as described above.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the device embodiments, reference may be made to the description of the method embodiments in the relevant part. Embodiments of the invention are not limited to the specific steps and structures described above and shown in the drawings. Those skilled in the art may make various changes, modifications and additions to, or change the order between the steps, after appreciating the spirit of the embodiments of the invention. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
Embodiments of the present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the algorithms described in the specific embodiments may be modified without departing from the basic spirit of the embodiments of the present invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A pixel arrangement, comprising: the pixel array comprises a plurality of rectangular repeating units arranged in an array, wherein each repeating unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color, and the number ratio of the first sub-pixel to the second sub-pixel to the third sub-pixel is 1:2: 2; wherein,
the first sub-pixel is quadrilateral, and the first sub-pixel is centered in each repeating unit, and the second sub-pixel and the third sub-pixel are distributed around the first sub-pixel.
2. A pixel arrangement according to claim 1, wherein each opposing edge of the first sub-pixel is of equal length.
3. A pixel arrangement according to claim 2, wherein the first sub-pixel unit is diamond shaped, preferably square shaped.
4. A pixel arrangement according to claim 2 or 3, wherein the centre of the first sub-pixel coincides with the centre of the repeating unit.
5. A pixel arrangement according to claim 1,
two diagonal vertexes of the first sub-pixel are arranged in one-to-one correspondence with two opposite sides of the repeating unit, and each diagonal vertex is positioned on the side corresponding to the diagonal vertex; or,
four vertexes of the first sub-pixel are arranged in one-to-one correspondence with four sides of the repeating unit, and each vertex is located on the side corresponding to the vertex.
6. The pixel arrangement structure according to claim 1, wherein the second sub-pixels are symmetrically distributed with one diagonal line of the repeating unit as an axis of symmetry, and the third sub-pixels are symmetrically distributed with the other diagonal line of the repeating unit as an axis of symmetry.
7. A pixel arrangement according to claim 1, wherein all of the second sub-pixels and all of the third sub-pixels in each of the repeating units are adjacently arranged.
8. A pixel arrangement according to claim 1, wherein the first sub-pixel is a blue sub-pixel, the second sub-pixel is one of a red sub-pixel or a green sub-pixel, and the third sub-pixel is the other of a red sub-pixel or a green sub-pixel.
9. A display panel characterized in that a pixel arrangement according to any one of claims 1 to 8 is used.
10. A display device characterized in that a pixel arrangement according to any one of claims 1-8 is used.
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| CN112470287B (en) * | 2020-09-10 | 2023-08-22 | 京东方科技集团股份有限公司 | Display substrate and related device |
| CN112563311A (en) * | 2020-12-10 | 2021-03-26 | 合肥维信诺科技有限公司 | Pixel arrangement structure, display panel and mask assembly |
| CN112563312A (en) * | 2020-12-10 | 2021-03-26 | 合肥维信诺科技有限公司 | Pixel arrangement structure, display panel and mask assembly |
| WO2022121401A1 (en) * | 2020-12-10 | 2022-06-16 | 合肥维信诺科技有限公司 | Pixel arrangement structure and display panel |
| CN112563311B (en) * | 2020-12-10 | 2024-01-23 | 合肥维信诺科技有限公司 | Pixel arrangement structure, display panel and mask assembly |
| KR102791395B1 (en) | 2020-12-10 | 2025-04-08 | 허페이 비젼녹스 테크놀로지 컴퍼니 리미티드 | Pixel array structure and display panel |
| CN115188789A (en) * | 2022-06-30 | 2022-10-14 | 合肥维信诺科技有限公司 | Display pixel arrangement structure and display panel |
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