CN111969020A - Pixel arrangement structure, display panel and mask set - Google Patents
Pixel arrangement structure, display panel and mask set Download PDFInfo
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- CN111969020A CN111969020A CN202010862600.4A CN202010862600A CN111969020A CN 111969020 A CN111969020 A CN 111969020A CN 202010862600 A CN202010862600 A CN 202010862600A CN 111969020 A CN111969020 A CN 111969020A
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- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000008020 evaporation Effects 0.000 description 11
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- 229920001621 AMOLED Polymers 0.000 description 5
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—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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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
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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 invention provides a pixel arrangement structure, a display panel and a mask set. The pixel arrangement structure comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are not overlapped in position. The first sub-pixels are positioned at four vertexes of the virtual square and at the intersection of diagonals of the virtual square, and the virtual square is divided into four triangular areas by a first diagonal and a second diagonal; the second sub-pixel is positioned on the first diagonal line; the third sub-pixels are arranged in pairs near the second diagonal line; only a single third sub-pixel is arranged in each triangular area, and the single third sub-pixel, the second sub-pixel adjacent to the single third sub-pixel and the first sub-pixel located at the center of the virtual square form an acute triangle. The invention realizes the sharing of the sub-pixels through the novel pixel arrangement structure, so that the sub-pixels are distributed more uniformly, and the space utilization rate can be improved, thereby reducing the difficulty of the OLED panel process manufacturing under the condition of meeting the technical requirement of high resolution.
Description
Technical Field
The invention relates to the technical field of display, in particular to a pixel arrangement structure, a display panel using the pixel arrangement structure and a mask set for manufacturing the pixel arrangement structure.
Background
Currently, an Active Matrix Organic Light Emitting Diode (AMOLED) display panel is called as a next generation display technology, and the display technology adopts an Organic electroluminescent display and an Active Matrix pixel addressing technology, and compared with a conventional liquid crystal display panel used in most of current electronic devices, such as a mobile phone, a tablet computer, and the like, the display panel has a wider viewing angle, a higher refresh rate, and a thinner size, and thus is being widely used.
In a top emission AMOLED panel manufacturing process, a high-precision metal mask (FMM for short) is often used, and an organic light emitting layer is formed by evaporation through an evaporation process. The mask plate has the minimum opening limit, and the sub-pixels with different colors in the evaporation process have the limit of the opening pitch, so that the AMOLED panel is inevitably limited by the mask plate opening and the accuracy of the evaporation process, and the realization of high resolution is difficult.
In order to meet the requirement of high resolution, a pixel arrangement mode shared by sub-pixels is generally adopted in the prior art, but due to the limitation of mask plate openings and the accuracy of an evaporation process, the problem that the AMOLED panel is difficult to meet the requirement of high resolution still exists.
Disclosure of Invention
In order to solve the technical problem, the invention provides a pixel arrangement structure, a display panel and a mask set.
The invention provides a pixel arrangement structure which comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein the positions of the first sub-pixel, the second sub-pixel and the third sub-pixel are not overlapped. The first sub-pixels are located at four vertexes of the virtual square and at the intersection of diagonals of the virtual square, the virtual square is divided into four triangular areas by the first diagonal and the second diagonal, and the four triangular areas use the intersection of the diagonals of the virtual square as the vertexes; the second sub-pixels are positioned on the first diagonal, only one second sub-pixel is arranged between two adjacent first sub-pixels positioned on the first diagonal, and the two second sub-pixels in the virtual square are symmetrically arranged relative to the second diagonal; the third sub-pixels are arranged near a second diagonal line in pairs, only one pair of third sub-pixels is arranged between two adjacent first sub-pixels on the second diagonal line, and two pairs of third sub-pixels in the virtual square are symmetrically arranged relative to the first diagonal line; each triangular area is only provided with a single third sub-pixel, and the single third sub-pixel, a second sub-pixel adjacent to the single third sub-pixel and a first sub-pixel positioned at the diagonal intersection point of the virtual square form an acute triangle; each acute triangle corresponds to one pixel unit, the first sub-pixel and the second sub-pixel on each acute triangle are shared by the adjacent pixel units, and each third sub-pixel is not shared.
Preferably, the areas of the first sub-pixel, the second sub-pixel and the third sub-pixel are not equal.
Preferably, the center point of each second sub-pixel is located at the midpoint of the connecting line of the center points of two adjacent first sub-pixels on the first diagonal.
Preferably, the pitch of two adjacent third sub-pixels is greater than 10 microns and less than 15 microns.
Preferably, the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.
Preferably, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.
Preferably, the center-point connecting line of each pair of third sub-pixels is perpendicular to the second diagonal line, and the center-point connecting lines of each pair of third sub-pixels are equally located on the center-point connecting lines of two adjacent first sub-pixels on the second diagonal line.
Preferably, each pair of third sub-pixels is an organic light emitting layer formed by evaporation through an opening of a common mask.
Preferably, the virtual square includes first pixel units arranged in a first acute triangle and second pixel units arranged in a second acute triangle, and the first acute triangle and the second acute triangle are symmetrical with respect to the first diagonal line.
The invention also provides a display panel comprising a pixel arrangement as described in any of the above.
The invention also provides a mask template set used for manufacturing a pixel matrix of a display panel, wherein the pixel matrix comprises the pixel arrangement structure, the mask template set comprises a first mask template, a second mask template and a third mask template, the first mask template comprises a first opening area used for forming a first sub-pixel of the pixel arrangement structure, the second mask template comprises a second opening area used for forming a second sub-pixel of the pixel arrangement structure, the third mask template comprises a third opening area used for forming a third sub-pixel of the pixel arrangement structure, and two adjacent third sub-pixels share one third opening area.
Compared with the prior art, the pixel arrangement structure, the display panel and the mask plate group realize sub-pixel sharing through the novel pixel arrangement structure, under the limit of the same process conditions of mask plate opening and evaporation process precision, the sub-pixels can be distributed more uniformly, the space utilization rate can be improved, and therefore the difficulty of OLED panel process manufacturing is reduced under the condition of meeting the technical requirement of high resolution.
Drawings
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 that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a pixel arrangement structure according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a pixel unit in a pixel arrangement structure according to an embodiment of the invention.
Fig. 3 is a schematic diagram of a pixel unit in a pixel arrangement structure according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a pixel unit in a pixel arrangement structure according to an embodiment of the invention.
Fig. 5 is a schematic view of a pixel arrangement structure according to another embodiment of the invention.
Fig. 6 is a schematic view of a pixel arrangement structure in a region of a display panel according to an embodiment of the invention.
Fig. 7 is a schematic view of a pixel arrangement structure in another area of the display panel according to an embodiment of the invention.
Fig. 8 is a schematic diagram of a pixel unit formed by a pixel arrangement structure according to an embodiment of the invention.
Fig. 9 is a schematic view of a pixel unit formed by a pixel arrangement structure according to another embodiment of the invention.
Fig. 10 is a schematic view of a pixel unit formed by a pixel arrangement structure according to another embodiment of the invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail. It should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and the shapes, sizes, orientations, or positional relationships of the respective elements shown in the drawings are only for convenience of describing the technical content of the present invention, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1, fig. 1 is a schematic view of a pixel arrangement structure according to an embodiment of the invention. The pixel arrangement structure of the present invention includes a first sub-pixel 1, a second sub-pixel 2, and a third sub-pixel 3, which are positioned without overlapping each other. In different embodiments of the present invention, the shape of each sub-pixel may be a regular polygon such as a square, a rectangle, a hexagon, an octagon, etc., or may be an irregular shape with a part removed or added on the basis of the regular polygon, which is not limited by the present invention.
The first sub-pixel 1 is located at four vertices of the virtual square 10 and at diagonal intersections of the virtual square 10, and the virtual square 10 is partitioned into four triangular regions by a first diagonal 11 and a second diagonal 12, and the four triangular regions collectively have the diagonal intersections of the virtual square 10 as vertices. The term "located" generally means that the center point of the first sub-pixel 1 overlaps the vertex or the center point (i.e. the intersection point of the diagonals) of the virtual square 10, but the invention is not limited thereto, and in different embodiments of the invention, it is only necessary to ensure that the position range of the first sub-pixel 1 overlaps the vertex or the center point of the virtual square 10.
The second sub-pixels 2 are located on the first diagonal 11, only one second sub-pixel 2 is located between two adjacent first sub-pixels 1 on the first diagonal 11, and the two second sub-pixels 2 in the virtual square 10 are symmetrically arranged relative to the second diagonal 12. The term "located" generally means that the center point of the second sub-pixel 2 overlaps the diagonal line of the virtual square 10, but the invention is not limited thereto, and in different embodiments of the invention, the second sub-pixel 2 is located within a position range that is ensured to overlap the diagonal line 11 of the virtual square 10. Optionally, the center point of each second sub-pixel 2 is located at the midpoint of the connecting line of the center points of two adjacent first sub-pixels 1 on the first diagonal line 11, which is more favorable for uniformity of display.
The third sub-pixels 3 are arranged in pairs near a second diagonal line 12 of the virtual square 10, and only one pair of the third sub-pixels 3 is located between two adjacent first sub-pixels 1 on the second diagonal line 12, and the two pairs of the third sub-pixels 3 in the virtual square 10 are symmetrically arranged with respect to the first diagonal line 11. Optionally, the center-point connecting line of each pair of third sub-pixels 3 is perpendicular to the second diagonal line 12 of the virtual square 10, and the center-point connecting lines of each pair of third sub-pixels are respectively located on the center-point connecting lines of two adjacent first sub-pixels 1 on the second diagonal line 12, which is more favorable for uniformity of display.
Wherein, only a single third sub-pixel 3 is arranged in each triangular region, and the single third sub-pixel 3, the second sub-pixel 2 adjacent to the single third sub-pixel, and the first sub-pixel 1 at the diagonal intersection point of the virtual square 10 form an acute triangle. Referring to fig. 1 to 4 in combination, fig. 2 to 4 are schematic views of a pixel unit in a pixel arrangement structure according to an embodiment of the invention. An acute triangle 101 is illustrated in fig. 1, which is located in the left triangular region, an acute triangle 102 is illustrated in fig. 2, which is located in the lower triangular region, an acute triangle 103 is illustrated in fig. 3, which is located in the upper triangular region, and an acute triangle 104 is illustrated in fig. 4, which is located in the right triangular region.
Each acute triangle corresponds to one pixel unit, the first sub-pixel 1 and the second sub-pixel 2 on each acute triangle are shared by adjacent pixel units, and each third sub-pixel 3 is not shared.
For example, the acute triangle 101 shown in fig. 1 is coterminous with the acute triangle 102 shown in fig. 2, and the adjacent pixel units corresponding to the two acute triangles share the first sub-pixel 1 and the second sub-pixel 2 on the common side, but the third sub-pixel 3 is not shared. For another example, the acute triangle 103 shown in fig. 3 is coplanar with the acute triangle 104 shown in fig. 4, and the adjacent pixel units corresponding to the two acute triangles share the first sub-pixel 1 and the second sub-pixel 2 on the common side, but the third sub-pixel 3 is not shared.
The pixel unit described in the present invention is a minimum unit for displaying an image, and one pixel unit corresponds to one pixel (pixel) for measuring a display resolution.
It should be noted that the center of the sub-pixel described in the present invention may be a geometric center of a sub-pixel pattern, or may be a center of a light emitting color of the sub-pixel, where the center of the light emitting color of the sub-pixel is the maximum external light emitting intensity of the sub-pixel after being excited, and the present invention is not limited thereto. In addition, the virtual square, the acute triangle, the various connecting lines, etc. described in the present invention are for convenience of describing the position relationship of the corresponding elements (such as each sub-pixel), and are not physical elements having shapes of square, triangle, straight line, etc.
Optionally, the areas of the first sub-pixel 1, the second sub-pixel 2 and the third sub-pixel 3 are not equal in size. Including, but not limited to, the area of the second sub-pixel 2 is larger than the area of the first sub-pixel 1, the area of the second sub-pixel 2 is larger than the area of the third sub-pixel 3, and the area of the first sub-pixel 1 is larger than or equal to the area of the third sub-pixel 3.
Referring to fig. 5, in a different embodiment of the present invention, the first sub-pixel 1 is a red (R) sub-pixel, the second sub-pixel 2 is a blue (B) sub-pixel, and the third sub-pixel 3 is a green (G) sub-pixel. The first sub-pixel 1 may be a blue (B) sub-pixel, the second sub-pixel 2 may be a red (R) sub-pixel, and the third sub-pixel 3 may be a green (G) sub-pixel.
In the present invention, the third sub-pixel 3 is optionally a green (G) sub-pixel, and since the green sub-pixel can provide 70% of the luminance for the common light emission when the red, green and blue sub-pixels collectively emit light and generate white light, the luminance is more desirable as the number of the green sub-pixels is larger.
In practical applications, the pitch of two adjacent third sub-pixels 3 is greater than 10 micrometers (μm) and less than 15 micrometers (μm). The pitch in the invention refers to the shortest distance between two adjacent sub-pixels. As shown in fig. 1 to 4, the distance x between the two third sub-pixels 3 satisfies the above condition, so that the third sub-pixels (e.g. green sub-pixels) are more uniformly distributed, which is beneficial to the display effect.
In practical applications, each pair of third sub-pixels 3 is an organic light emitting layer formed by evaporation through an opening of a common mask. The two third sub-pixels 3 share a mask (such as FMM) opening, so that the space utilization rate can be improved, and the service life of the display panel can be prolonged.
Referring to fig. 1 and fig. 2, in an embodiment, the virtual square 10 includes first pixel units arranged in a first acute triangle 101 and second pixel units arranged in a second acute triangle 102. The first acute triangle 101 and the second acute triangle 102 are symmetrical with respect to the first diagonal line 11; that is, the two pixel units are located at two sides of the first diagonal line 11 and at one side of the second diagonal line 12, and the first acute triangle 101 and the second acute triangle 102 share the connection line of the first sub-pixel 1 and the second sub-pixel 2 as a common side. Similarly, referring to fig. 3 and fig. 4 in combination, in another embodiment, the virtual square 10 may include a third pixel unit arranged in a third acute triangle 103 and a fourth pixel unit arranged in a fourth acute triangle 104. The third acute triangle 103 and the fourth acute triangle 104 are symmetrical with respect to the first diagonal line 11; that is, the two pixel units are located on two sides of the first diagonal line 11 and on the other side of the second diagonal line 12, and the third acute triangle 103 and the fourth acute triangle 104 share the connection line of the first sub-pixel 1 and the second sub-pixel 2 as a common side. The above design of the present invention can make the distribution of the third sub-pixel (e.g. the green sub-pixel) more uniform.
In various embodiments, referring to fig. 1 and fig. 3 in combination, the virtual square 10 may include a first pixel unit arranged in a first acute triangle 101 and a third pixel unit arranged in a third acute triangle 103, where the first acute triangle 101 and the third acute triangle 103 are symmetrical with respect to the second diagonal line 12; that is, the first pixel unit and the third pixel unit of this embodiment are located on two sides of the second diagonal 12 and on the same side of the first diagonal 11. Alternatively, in a different embodiment, please refer to fig. 1 and fig. 4 in combination, the virtual square 10 may include first pixel units arranged in a first acute triangle 101 and fourth pixel units arranged in a fourth acute triangle 104, and the first acute triangle 101 and the fourth acute triangle 104 form an opposite triangle; that is, the first pixel unit and the fourth pixel unit of this embodiment are located on both sides of the second diagonal line 12 and both sides of the first diagonal line 11.
Referring to fig. 6 and 7 in combination, fig. 6 is a schematic diagram of a pixel arrangement structure in a region of a display panel according to an embodiment of the invention, and fig. 7 is a schematic diagram of a pixel arrangement structure in another region of the display panel according to an embodiment of the invention. The display panel of the present invention comprises a pixel arrangement as described in any of the above embodiments. Including but not limited to, the display panel of the present invention includes a plurality of pixel arrangements arranged in a first direction a1 and a second direction a2, the first direction a1 is perpendicular to the second direction a2, and two virtual squares 10 corresponding to adjacent pixel arrangements share one side of the square. Alternatively, the first direction a1 may be parallel to or have an angle with the row direction of the pixel units arranged in the display panel array, and the second direction a2 may be parallel to or have an angle with the column direction of the pixel units arranged in the display panel array, for example, the angle is 30 degrees, 45 degrees, 60 degrees, and the like, which is not limited by the invention. Taking the included angle as an example of 45 degrees, at this time, the row direction of the pixel units arranged in the array is parallel to the extending direction of one diagonal line of the virtual square 10, and the column direction of the pixel units arranged in the array is parallel to the extending direction of the other diagonal line of the virtual square 10.
When the display panel displays, through the design of the driving control mode, theoretically, any adjacent first sub-pixel 1, second sub-pixel 2 and third sub-pixel 3 can form a light-emitting pixel (i.e. a pixel unit), and the display effect of higher resolution can be realized between the sub-pixels by virtue of the physical resolution of lower resolution by virtue of the color principle. The color borrowing principle means that when an image is displayed, one pixel unit at least comprises sub-pixels of three primary colors of red, green and blue, and some sub-pixels can be shared by other adjacent sub-pixels, namely the number of the pixel units corresponding to one shared sub-pixel is at least two, and the mode of sharing the sub-pixels by the adjacent pixel units can reduce the number of the sub-pixels, thereby achieving the effect of simulating high resolution with low resolution.
In the embodiments of the display panel of the present invention, each first sub-pixel 1 may be shared by two adjacent pixel units, each second sub-pixel 2 may be shared by two adjacent pixel units, and each third sub-pixel 3 is not shared. In the embodiment shown in fig. 6 and 7, in each virtual square 10, a single third sub-pixel 3, a second sub-pixel 2 adjacent to the single third sub-pixel 3, and a first sub-pixel 1 located at the center of the virtual square 10 form an acute triangle corresponding to a pixel unit; the two adjacent acute triangles share the sub-pixels of the first sub-pixel 1 and the second sub-pixel 2 by using the connecting line of the first sub-pixel 1 and the second sub-pixel 2 as a common side, but each acute triangle comprises different single sub-pixels 3, namely, each third pixel 3 is not shared. The above design of the present invention can make the distribution of the third sub-pixels 3 more uniform.
The display panel of the present invention may also use other sub-pixel sharing manners, and on the premise of including the pixel arrangement structure described in the embodiments of the present invention, it is sufficient that each of the first and second sub-pixels can be shared by two adjacent pixel units, and each of the third sub-pixels is not shared.
For example, the first sub-pixel 1 is a red (R) sub-pixel, the second sub-pixel 2 is a blue (B) sub-pixel, and the third sub-pixel 3 is a green (G) sub-pixel, please refer to fig. 8 to 10, and fig. 8 to 10 are schematic diagrams of pixel units formed by pixel arrangement structures according to different embodiments of the present invention, and the pixel units in the display process are illustrated by dot-dash acute triangles. Through the pixel arrangement structure and the sub-pixel sharing mode which are reasonably arranged, the design of the driving circuit is simpler when the display panel displays.
The layout design of the virtual squares in the embodiments of the present invention can keep the relative distances between the sub-pixels consistent, for example, the distance between two sub-pixels in one virtual square (corresponding to one pixel layout) is the same as the distance between two sub-pixels in the other virtual squares (corresponding to the other pixel layouts), which is more beneficial to the uniformity of the display.
The display panel of the present invention may be an Organic Light Emitting Diode (OLED) display panel. The display panel may further include an anode, an organic emission layer, a cathode, an insulating layer, a power line for driving each sub-pixel, a data line, and the like, which are well known in the art and thus are not described herein in detail. It should be noted that the pixel arrangement of the present invention can also be used in a Liquid Crystal Display (LCD) panel.
The display panel can be used for various large-scale display devices such as a display, a television and the like, and can also be used for various handheld display devices such as a mobile phone, a tablet personal computer and the like. The embodiment of the invention also provides a display device which comprises the display panel in each embodiment.
The embodiment of the invention also provides a mask set which is used for manufacturing the pixel matrix of the display panel. The pixel matrix comprises the pixel arrangement structure as described in any one of the embodiments above, the reticle set comprises a first reticle, a second reticle and a third reticle, the first reticle comprises a first open area for forming a first sub-pixel of the pixel arrangement structure, the second reticle comprises a second open area for forming a second sub-pixel of the pixel arrangement structure, the third reticle comprises a third open area for forming a third sub-pixel of the pixel arrangement structure, and two adjacent third sub-pixels share one third open area.
Specifically, the first open area corresponds to a shape of a first sub-pixel in the pixel arrangement structure, the second open area corresponds to a shape of a second sub-pixel in the pixel arrangement structure, and the third open area corresponds to a shape of a third sub-pixel in the pixel arrangement structure. The mask plate set can be a combination of high-precision metal mask plates and is used in the OLED evaporation process. In practical application, each pair of third sub-pixels (such as green sub-pixels) is formed by evaporation through sharing the opening of the third mask, so that the space utilization rate can be improved, and the service life of the display panel can be prolonged.
According to the pixel arrangement structure, the display panel and the mask plate group, the sub-pixels are shared through the novel pixel arrangement structure, under the limit of the same process conditions of mask plate opening and evaporation process precision, the sub-pixels can be distributed more uniformly, the space utilization rate can be improved, the difficulty of OLED panel process manufacturing is reduced under the condition that the technical requirement of high resolution is met, and the manufacturing efficiency of the OLED panel is improved.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. Furthermore, the technical features mentioned in the different embodiments of the present invention described above may be combined with each other as long as they do not conflict with each other. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. A pixel arrangement structure comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are not overlapped in position; it is characterized in that the preparation method is characterized in that,
the first sub-pixels are located at four vertexes of a virtual square and at diagonal intersection points of the virtual square, the virtual square is divided into four triangular areas by a first diagonal and a second diagonal, and the four triangular areas use the diagonal intersection points of the virtual square as vertexes;
the second sub-pixels are positioned on the first diagonal, only one second sub-pixel is arranged between two adjacent first sub-pixels positioned on the first diagonal, and the two second sub-pixels in the virtual square are symmetrically arranged relative to the second diagonal;
the third sub-pixels are arranged in pairs near the second diagonal line, only one pair of the third sub-pixels is arranged between two adjacent first sub-pixels on the second diagonal line, and two pairs of the third sub-pixels in the virtual square are symmetrically arranged relative to the first diagonal line;
only a single third sub-pixel is arranged in each triangular area, and the single third sub-pixel, a second sub-pixel adjacent to the single third sub-pixel and a first sub-pixel positioned at the diagonal intersection point of the virtual square form an acute triangle;
each acute triangle corresponds to one pixel unit, the first sub-pixel and the second sub-pixel on each acute triangle are shared by the adjacent pixel units, and each third sub-pixel is not shared.
2. The pixel arrangement according to claim 1, wherein the first sub-pixel, the second sub-pixel and the third sub-pixel have unequal area sizes.
3. The pixel arrangement according to claim 1, wherein the center point of each second sub-pixel is located at a midpoint of a connecting line of the center points of two adjacent first sub-pixels on the first diagonal.
4. The pixel arrangement according to claim 1, wherein a pitch of two adjacent third sub-pixels is greater than 10 micrometers and less than 15 micrometers.
5. The pixel arrangement according to claim 1, wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel; or, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.
6. A pixel arrangement according to claim 1, wherein the connecting centre points of each pair of third sub-pixels is perpendicular to the second diagonal and the connecting centre points of each pair of third sub-pixels are equally divided between the connecting centre points of two adjacent first sub-pixels on the second diagonal.
7. The pixel arrangement according to claim 1, wherein each pair of third sub-pixels is an organic light emitting layer evaporated from an opening of a common mask.
8. The pixel arrangement according to claim 1, wherein the virtual square includes a first pixel cell arranged in a first acute triangle and a second pixel cell arranged in a second acute triangle, the first acute triangle and the second acute triangle being symmetrical with respect to the first diagonal.
9. A display panel comprising a pixel arrangement according to any one of claims 1 to 8.
10. A reticle set for use in fabricating a pixel matrix of a display panel, the pixel matrix comprising a pixel arrangement according to any one of claims 1-8, the reticle set comprising a first reticle, a second reticle and a third reticle, the first reticle comprising a first open area for forming a first sub-pixel of the pixel arrangement, the second reticle comprising a second open area for forming a second sub-pixel of the pixel arrangement, the third reticle comprising a third open area for forming a third sub-pixel of the pixel arrangement, and two adjacent third sub-pixels sharing a third open area.
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