CN111384086B - Pixel structure and display screen - Google Patents
Pixel structure and display screen Download PDFInfo
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- CN111384086B CN111384086B CN201811619626.5A CN201811619626A CN111384086B CN 111384086 B CN111384086 B CN 111384086B CN 201811619626 A CN201811619626 A CN 201811619626A CN 111384086 B CN111384086 B CN 111384086B
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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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
Abstract
The invention relates to a pixel structure and a display screen. The pixel structure comprises a display area, the display area comprises a plurality of sub-areas, the included angle between at least one group of two intersected edges in each sub-area is an acute angle, at least one sub-area comprises at least one separating edge, the separating edge is positioned on one side of the acute angle and divides the sub-area into a sub-pixel area and at least one non-pixel area, and the included angle between the separating edge and the adjacent edge in each sub-pixel area is a non-acute angle. By applying the pixel structure of the technical scheme of the invention, because the included angle between the separating edge and the adjacent edge in the sub-pixel area is a non-acute angle, compared with the traditional pixel structure, the number of acute angle areas in the sub-pixel area is reduced, the accumulation phenomenon of materials in the acute angle areas in the printing process and the evaporation shadow effect caused by the acute angle areas in the evaporation process are reduced, and the display effect can be improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a pixel structure and a display screen.
Background
Display technologies based on Light Emitting diodes, such as Organic Light-Emitting diodes (OLED) and Quantum Dot Light-Emitting diodes (QLED), are self-luminous display technologies, in which a Light-Emitting layer is made of an electroluminescent material, an Organic Light-Emitting layer is made of an Organic material or a Quantum Dot material, and a Quantum Dot Light-Emitting layer is usually made of an evaporation process or a printing process.
Disclosure of Invention
In view of the above, it is necessary to provide a pixel structure and a display panel capable of improving the display effect, aiming at the problem of how to improve the display effect of the display panel.
A pixel structure comprises a display area, wherein the display area comprises a plurality of sub-areas, an included angle between at least one group of two intersecting edges in each sub-area is an acute angle, at least one sub-area comprises at least one separating edge, the separating edge is positioned on one side of the acute angle and divides the sub-area into a sub-pixel area and a non-pixel area, and the included angle between the separating edge and the adjacent edge in each sub-pixel area is a non-acute angle.
By applying the pixel structure of the technical scheme of the invention, because the included angle between the separating edge and the adjacent edge in the sub-pixel area is a non-acute angle, compared with the traditional pixel structure, the number of acute angle areas in the sub-pixel area is reduced, the accumulation phenomenon of materials in the acute angle areas in the printing process and the evaporation shadow effect caused by the acute angle areas in the evaporation process are reduced, and the display effect can be improved.
In one embodiment, all the sub-regions include at least one separating edge, in the sub-regions, the separating edges correspond to the number of the acute angles one to one, the separating edges are located on one side of the corresponding acute angles and separate the sub-regions into sub-pixel regions and non-pixel regions, and an included angle between any two intersecting edges in the sub-pixel regions is a non-acute angle.
In one embodiment, the sub-regions are respectively a first sub-region with at least one first color sub-pixel arranged in a sub-pixel region, a second sub-region with at least one second color sub-pixel arranged in a sub-pixel region, and a third sub-region with at least one third color sub-pixel arranged in a sub-pixel region; the first sub-region, the second sub-region and the third sub-region which are adjacent form a sub-region unit; the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are independently selected from a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other.
In one embodiment, each of the sub-pixel regions is provided with at least two identical color light sub-pixels.
In one embodiment, the shape of the sub-regions is diamond or triangle.
In one embodiment, the non-pixel regions of adjacent sub-regions are tiled together and configured as a wire region.
In one embodiment, the area ratio of all the non-pixel regions to the pixel structure is 1:5-3:5.
In one embodiment, the shape of the sub-region unit is a regular hexagon or a rhombus, two adjacent sub-region units share a common edge, the sub-region units are repeatedly arranged in a column direction, and each column of the sub-region units and every other column of the sub-region units are repeatedly arranged.
In one embodiment, the shape of the sub-region unit is a regular hexagon, and a connecting line between the center of the regular hexagon and a vertex divides the sub-region unit into three sub-regions with equal areas, namely a first sub-region, a second sub-region and a third sub-region, which are arranged in the clockwise direction.
In one embodiment, the first sub-region is provided with a red sub-pixel, the second sub-region is provided with a blue sub-pixel, and the third sub-region is provided with a green sub-pixel; and one red sub-pixel, one blue sub-pixel and one green sub-pixel in each sub-area unit form a pixel unit.
In one embodiment, each of the sub-regions is in a diamond shape, the first sub-region is provided with two red sub-pixels which are in mirror symmetry distribution along a connecting line of two acute-angle vertexes of the diamond shape, the second sub-region is provided with two blue sub-pixels which are in mirror symmetry distribution along a connecting line of two acute-angle vertexes of the diamond shape, and the third sub-region is provided with two green sub-pixels which are in mirror symmetry distribution along a connecting line of two acute-angle vertexes of the diamond shape; in the sub-area unit, a red sub-pixel, a blue sub-pixel and a green sub-pixel which are two-by-two on the same side form a pixel unit.
In one embodiment, the shape of the sub-region unit is a diamond shape, and the sub-region unit is divided into four sub-regions with equal areas by connecting lines of midpoints of four opposite sides of the diamond-shaped sub-region unit, wherein the four sub-regions are respectively a first sub-region, a second sub-region, a first sub-region and a third sub-region which are arranged along the clockwise direction, and the two first sub-regions are arranged oppositely.
In one embodiment, the first sub-region is provided with four green sub-pixels, two by two of which are centrosymmetric along the center of the first sub-region, the second sub-region is provided with four blue sub-pixels, two by two of which are centrosymmetric along the center of the second sub-region, and the third sub-region is provided with four red sub-pixels, two by two of which are centrosymmetric along the center of the third sub-region; and one blue sub-pixel, one red sub-pixel and two green sub-pixels which are adjacent form a pixel unit.
In one embodiment, the shape of the sub-region unit is an isosceles trapezoid, and a connecting line of two end points of an upper bottom and a middle point of a lower bottom of the trapezoid sub-region unit divides the sub-region unit into a first sub-region, a second sub-region and a third sub-region which are linearly arranged; wherein the first, second and third sub-regions are all isosceles triangles.
In one embodiment, in the row direction, the shape of a region formed by two adjacent sub-region units is a parallelogram, and after any one of the sub-region units is rotated by 180 degrees by using the central point of the sub-region unit, the arrangement structure of the sub-region unit is horizontally arranged in a mirror image manner with the adjacent sub-region unit in the row direction;
in the column direction, the regions formed by two adjacent sub-region units in the row direction are repeatedly arranged along the extending direction of the edge.
In one embodiment, the first sub-region is provided with three red sub-pixels with vertexes being the centers of the first sub-region, the second sub-region is provided with three blue sub-pixels with vertexes being the centers of the second sub-region, and the third sub-region is provided with three green sub-pixels with vertexes being the centers of the third sub-region; in the sub-area unit, one red sub-pixel, one blue sub-pixel and one green sub-pixel which are adjacent form a pixel unit.
In addition, a display screen is also provided, and the display screen comprises the pixel structure.
According to the display screen adopting the technical scheme, because the included angle between the separating edge and the adjacent edge in the sub-pixel area is a non-acute angle, compared with the traditional display screen, the number of acute angle areas in the sub-pixel area is reduced, the accumulation phenomenon of materials in the acute angle areas in a printing process and the evaporation shadow effect caused by the acute angle areas in an evaporation process are reduced, and therefore the display effect can be improved.
In one embodiment, each sub-pixel region is provided with only one sub-pixel, and the display screen further includes:
the pixel electrode is positioned in the sub-pixel area; and
and the pixel defining layer is positioned between the adjacent sub-pixel regions and covers the edge of the pixel electrode.
In one embodiment, each sub-pixel region is provided with at least two identical color light sub-pixels, and the display screen further comprises:
the pixel electrode is positioned in the sub-pixel area;
the first pixel definition layer is positioned between adjacent sub-pixels in the sub-pixel area and covers the edge of the pixel electrode; and
and the second pixel definition layer is positioned between the adjacent sub-pixel areas.
Drawings
Fig. 1 is a schematic diagram of a pixel structure according to a first embodiment of the invention;
FIG. 2 is a schematic view of a sub-region in a pixel structure according to a first embodiment of the present invention;
fig. 3 is a schematic view of a sub-area unit in a pixel structure according to a first embodiment of the present invention;
FIG. 4 is a diagram illustrating a pixel structure according to a second embodiment of the present invention;
FIG. 5 is a schematic view of a sub-region in a pixel structure according to a second embodiment of the present invention;
fig. 6 is a schematic view of a sub-area unit in a pixel structure according to a second embodiment of the invention;
fig. 7 is a first mask plate for evaporating the first color sub-pixel of the first embodiment and the two first color sub-pixels of the second embodiment;
fig. 8 is a second mask plate for vapor deposition of the second color sub-pixel of the first embodiment and two second color sub-pixels of the second embodiment;
fig. 9 is a third mask for vapor deposition of the third color sub-pixel of the first embodiment and the two third color sub-pixels of the second embodiment;
FIG. 10 is a diagram illustrating a pixel structure according to a third embodiment of the present invention;
fig. 11 is a schematic diagram of a pixel structure according to a fourth embodiment of the invention;
fig. 12 is a schematic diagram of a pixel structure according to a fifth embodiment of the invention;
fig. 13 is a schematic view of a pixel structure according to a sixth embodiment of the invention;
FIG. 14 is a schematic view of a display screen according to a first embodiment of the present invention;
fig. 15 is a schematic view of a display screen according to a second embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and fig. 2, a pixel structure 100 according to a first embodiment of the present invention includes a display area, the display area includes a plurality of sub-areas 120, an included angle between at least one group of two intersecting edges in the sub-areas 120 is an acute angle, the sub-areas 120 include at least one separating edge 121, the separating edge 121 is located on one side of the acute angle and divides the sub-areas 120 into a sub-pixel area 130 and a non-pixel area 140, and an included angle between any two intersecting edges in the sub-pixel area 130 is a non-acute angle.
In the pixel structure 100 of the present embodiment, all the sub-regions 120 include at least one separating edge. Specifically, as shown in fig. 2, each sub-region 120 is a diamond shape and includes two acute angles, the separating edges 121 correspond to the number of the acute angles one by one, and the separating edges 121 are located at one side of the corresponding acute angles and separate the sub-region 120 into a hexagonal sub-pixel region 130 and two triangular non-pixel regions 140. Of course, in the pixel structure of the present invention, the number of the partition sides in the sub-region is not limited thereto.
Referring to fig. 3, the sub-regions 120 are respectively a first sub-region 150 having a first color sub-pixel 151 disposed in a sub-pixel region, a second sub-region 160 having a second color sub-pixel 161 disposed in a sub-pixel region, and a third sub-region 170 having a third color sub-pixel 171 disposed in a sub-pixel region. The adjacent first, second, and third sub-regions 150, 160, and 170 constitute a sub-region unit 180.
Further, the first, second and third color sub-pixels 151, 161 and 171 are independently selected from a red sub-pixel, a green sub-pixel and a blue sub-pixel, respectively, and the first, second and third color sub-pixels are different from each other. Specifically, in this embodiment, the first color sub-pixel 151 is a blue sub-pixel, the second color sub-pixel 161 is a red sub-pixel, and the third color sub-pixel 171 is a green sub-pixel. Of course, in other embodiments, the first color sub-pixel 151 may also select a red or green color light, the second color sub-pixel 161 may also select a blue or green color light, and the third color sub-pixel 171 may also select a red or blue color light.
Referring to fig. 1 and fig. 3, in the present embodiment, the shape of the sub-region units 180 is a regular hexagon, two adjacent sub-region units 180 share one side, the sub-region units 180 are repeatedly arranged in the column direction, and each column of sub-region units 180 and the sub-region units 180 in the interval column are repeatedly arranged.
Further, a line connecting the center and the vertex of the regular hexagonal sub-region unit 180 divides the sub-region unit 180 into three sub-regions with equal areas, which are the first sub-region 150, the second sub-region 160, and the third sub-region 170 arranged in the clockwise direction.
Further, in the present embodiment, each sub-pixel region 130 is provided with one sub-pixel, and the sub-pixel is an R sub-pixel, a G sub-pixel or a B sub-pixel, as shown in fig. 1. Specifically, in the present embodiment, the first sub-region 150 is provided with one blue sub-pixel, the second sub-region 160 is provided with one red sub-pixel, and the third sub-region 170 is provided with one green sub-pixel. And one red sub-pixel, one blue sub-pixel and one green sub-pixel in each sub-area unit form a pixel unit.
It should be noted that, in the pixel structure of the present invention, when the sub-region unit includes the first sub-region, the second sub-region, and the third sub-region, which are respectively provided with different color sub-pixels, the arrangement of the three is not limited to the arrangement in the above embodiment.
On the basis of the foregoing embodiment, the non-pixel regions 140 of different sub-regions are spliced together and configured as a wiring region 190, as shown in fig. 1. The wiring region 190 refers to a region for providing the pixel electrode via, that is, a pixel electrode via wiring region, and can avoid providing a via in the sub-pixel region, thereby achieving uniformity of light emission.
Referring to fig. 1, the planar shape of the wiring region 190 in the present embodiment is a hexagon, that is, the non-pixel regions 140 of the six sub-regions 120 are arranged along a counterclockwise direction or a clockwise direction. Among the six sub-regions 120, two sub-regions 120 having the same color light are diagonally arranged. Of course, the planar shape of the wiring region is not limited to this, and may be any other shape.
Preferably, in the pixel structure of the invention, the area ratio of all the non-pixel regions to the pixel structure is 1:5-3:5. At the moment, the formation of an evaporation or printing acute angle area in the sub-pixel area can be fully avoided, so that the display effect is effectively improved.
In addition, in the pixel structure of the above embodiment, only one sub-pixel is provided in each sub-pixel region. The sub-pixel region of the pixel structure of the present invention is not limited thereto. In other embodiments, each sub-pixel region may be further provided with at least two identical color light sub-pixels.
Referring to fig. 4 to 6, a pixel structure 200 according to a second embodiment of the present invention includes a display area, the display area includes a plurality of sub-areas 220, an included angle between at least one group of two intersecting edges of the sub-areas 220 is an acute angle, the sub-areas 220 include two separating edges 221, the separating edges 221 are located on one side of the acute angle and separate the sub-areas 220 into sub-pixel areas 230 and non-pixel areas 240 located on two sides of the sub-pixels 230, and an included angle between any two intersecting edges of the sub-pixel areas 230 is a non-acute angle.
Referring to fig. 4 and fig. 6, in the present embodiment, the shape of the sub-region unit 280 is a regular hexagon, two adjacent sub-region units 280 share one edge, the sub-region units 280 are repeatedly arranged in the column direction, and each column of sub-region units 280 and the sub-region units 280 in the interval column are repeatedly arranged.
Further, in the present embodiment, a line connecting the center and the vertex of the regular hexagonal sub-region unit 280 divides the sub-region unit 280 into three sub-regions with equal areas, namely, a first sub-region 250, a second sub-region 260, and a third sub-region 270 arranged in a clockwise direction, as shown in fig. 6. The sub-pixel region of the first sub-region 250 is provided with a first color sub-pixel 251, the sub-pixel region of the second sub-region 260 is provided with a second color sub-pixel 261, and the sub-pixel region of the third sub-region 270 is provided with a third color sub-pixel 271.
Further, in this embodiment, each sub-region has a diamond shape, the first sub-region 250 is provided with two blue sub-pixels which are mirror-symmetrically distributed along a connecting line of two acute-angle vertices of the diamond shape, the second sub-region 260 is provided with two red sub-pixels which are mirror-symmetrically distributed along a connecting line of two acute-angle vertices of the diamond shape, and the third sub-region 270 is provided with two green sub-pixels which are mirror-symmetrically distributed along a connecting line of two acute-angle vertices of the diamond shape. In the sub-region unit 280, a red sub-pixel, a blue sub-pixel and a green sub-pixel which are two-by-two on the same side form a pixel unit.
When the pixel structure of the embodiment is evaporated, two same color light sub-pixels located in the same sub-region 220 can be manufactured by sharing the same opening on the mask plate, and the size of the manufactured sub-pixels is half of the size of the opening of the mask plate, so that the size of the manufactured sub-pixels can be smaller than that of the sub-pixels manufactured by a traditional method under the condition that the opening capacity of the mask plate is limited, and the integral resolution of the display screen can be improved.
Referring to fig. 7, the first mask 310 is used to evaporate the first color sub-pixel 151 of the pixel structure 100 of the first embodiment or two first color sub-pixels 251 of the pixel structure 200 of the second embodiment. Specifically, the size of the opening of the first mask 310 is the same as the size of the first color sub-pixel 151 of the pixel structure 100 of the first embodiment or the two first color sub-pixels 251 of the pixel structure 200 of the second embodiment.
Referring to fig. 8, the second mask 320 is used to evaporate the second color sub-pixel 161 of the pixel structure 100 of the first embodiment or the two second color sub-pixels 261 of the pixel structure 200 of the second embodiment. Specifically, the opening size of the second mask 320 is the same as the size of the second color sub-pixel 161 of the pixel structure 100 of the first embodiment or the two second color sub-pixels 261 of the pixel structure 200 of the second embodiment described above.
Referring to fig. 9, the third mask 330 is used to evaporate the third color sub-pixel 171 of the pixel structure 100 of the first embodiment or the two third color sub-pixels 271 of the pixel structure 200 of the second embodiment. Specifically, the opening size of the third mask 330 is the same as the size of the third-color sub-pixel 171 of the pixel structure 100 of the first embodiment or the size of the two third-color sub-pixels 271 of the pixel structure 200 of the second embodiment.
Furthermore, in other embodiments, each sub-region may also be provided with more than two identical color light sub-pixels. At the moment, more than two same color light sub-pixels positioned in the same sub-area can be manufactured by sharing the same opening on the mask plate, and the size of the manufactured sub-pixels is smaller than that of the opening of the mask plate, so that the sub-pixels with smaller sizes can be manufactured by the method compared with the conventional method under the condition that the opening capacity of the mask plate is limited, and the whole resolution ratio of the display screen is more favorably improved.
In the pixel structure of the present invention, the shape of the sub-region unit is not limited to the regular hexagon in the two embodiments, and for example, the shape of the sub-region may be any other shape such as a diamond shape.
In addition, in the pixel structure of the present invention, the number of the non-pixel regions of each sub-region is not limited thereto. For example, in other embodiments, the number of non-pixel regions per sub-region may be one, three, or more than three. In addition, the number of non-pixel regions in different sub-regions may be the same or different.
Referring to fig. 10, a pixel structure 500 according to a third embodiment of the invention includes a display area, and the display area includes a plurality of sub-area units 580. The shape of the sub-region unit 580 is a diamond shape, and the connecting lines of the midpoints of four opposite sides of the diamond-shaped sub-region unit 580 divide the sub-region unit 580 into four sub-regions 520 with equal areas, which are respectively a first sub-region, a second sub-region, a first sub-region and a third sub-region arranged along the clockwise direction, wherein the two first sub-regions are arranged oppositely.
Further, the sub-region 520 of the present embodiment is diamond-shaped, and includes two acute angles. The sub-region 520 comprises four separating edges which are respectively positioned at one side of four vertex angles of the diamond-shaped sub-region 520 and divide the sub-region into a sub-pixel region and four non-pixel regions, and an included angle between any two intersecting edges in the sub-pixel region is a non-acute angle.
Furthermore, the first sub-region is provided with four green sub-pixels which are in central symmetry in pairs along the center of the first sub-region, the second sub-region is provided with four blue sub-pixels which are in central symmetry in pairs along the center of the second sub-region, and the third sub-region is provided with four red sub-pixels which are in central symmetry in pairs along the center of the third sub-region. And one blue sub-pixel, one red sub-pixel and two green sub-pixels which are adjacent form a pixel unit.
In addition, it should be noted that, in the plurality of sub-regions of the pixel structure of the present invention, it is not limited that the included angle between any two intersecting edges in the sub-pixel regions of all the sub-regions is a non-acute angle, as long as at least one sub-region includes at least one separating edge, the separating edge is located on one side of the acute angle and separates the sub-region into the sub-pixel region and at least one non-pixel region, and as long as the included angle between the separating edge and the adjacent edge in the sub-pixel region of at least one sub-region is a non-acute angle.
Referring to fig. 11, a pixel structure 600 according to a fourth embodiment of the present invention includes a plurality of sub-regions 620, and the difference between this embodiment and the pixel structure 500 according to the third embodiment is that only a part of the sub-regions 620 include a separating edge 621 for separating the sub-region into a sub-pixel region and at least one non-pixel region, and the number of the separating edge 621 in some sub-regions 620 is one, and the number of the separating edge 621 in some sub-regions 620 is two.
In the embodiment, the included angle between the separating edge and the adjacent edge is a non-acute angle, so that the accumulation phenomenon of materials in an acute angle area in a printing process and the evaporation shadow effect caused by the acute angle area in an evaporation process can be reduced, and the display effect can be improved.
In addition, in the pixel structure of the present invention, in addition to reducing the number of the acute angle regions, the angle of the non-acute angle region of the sub-pixel region can be further increased.
Referring to fig. 12, a pixel structure 700 according to a fifth embodiment of the present invention includes a plurality of sub-regions 720, and the present embodiment is different from the pixel structure 600 according to the fourth embodiment in that not only a separating edge 721 for separating the sub-region into the sub-pixel region and at least one non-pixel region is disposed in the sub-region 720, but also a separating edge 722 is further disposed in the non-pixel region of the sub-region 720 to further increase the angle of two adjacent edges of the non-acute-angle end. Therefore, the method is more beneficial to reducing the accumulation phenomenon of materials in the acute angle area in the printing process and the evaporation shadow effect caused by the acute angle area in the evaporation process, thereby improving the display effect.
In the pixel structure of the present invention, the shape of the sub-region is not limited to the diamond shape in the above five embodiments. For example, the shape of the sub-region may be any other arbitrary shape such as a triangle. The shape of the sub-region unit is not limited to the diamond shape in the above five embodiments. For example, the shape of the sub-region unit may be any other shape such as a trapezoid.
In addition, the arrangement of the first, second and third sub-regions is not limited to this.
Referring to fig. 13, a pixel structure 400 according to a sixth embodiment of the invention includes a plurality of repeated sub-region units 480. The shape of the sub-region unit 480 is an isosceles trapezoid, and a connecting line between two endpoints of the upper bottom and a midpoint of the lower bottom of the trapezoid sub-region unit 480 divides the sub-region unit 480 into a first sub-region 410, a second sub-region 420 and a third sub-region 430 which are linearly arranged. The shapes of the first sub-area 410, the second sub-area 420 and the third sub-area 430 are all isosceles triangles.
In the row direction, the shape of the region formed by two adjacent sub-region units 480 is a parallelogram, and after rotating any one of the sub-region units 480 by 180 degrees with respect to the central point of the sub-region unit, the arrangement structure is horizontally arranged in a mirror image with the adjacent sub-region unit 480 in the row direction.
In the column direction, the regions constituted by two sub-region units 480 adjacent in the row direction are repeatedly arranged along the extending direction of the edges thereof (the direction indicated by the arrow in fig. 13).
The first sub-region 410 is provided with three red sub-pixels having a vertex as the center of the first sub-region, the second sub-region 420 is provided with three blue sub-pixels having a vertex as the center of the second sub-region, and the third sub-region 430 is provided with three green sub-pixels having a vertex as the center of the third sub-region. In the sub-region unit 480, one red sub-pixel, one blue sub-pixel, and one green sub-pixel, which are adjacent to each other, constitute one pixel unit.
In addition, in this embodiment mode, the non-light emitting regions of the six sub-regions are joined together and configured as the wiring region 440. The planar shape of the wiring region 440 is a hexagon.
By applying the pixel structure of the technical scheme of the invention, because the included angle between the separating edge and the adjacent edge in the sub-pixel area is a non-acute angle, compared with the traditional pixel structure, the number of acute angle areas in the sub-pixel area is reduced, the accumulation phenomenon of materials in the acute angle areas in the printing process and the evaporation shadow effect caused by the acute angle areas in the evaporation process are reduced, and the display effect can be improved.
The display screen of an embodiment of the invention includes the pixel structure.
Referring to fig. 14, in the display panel according to the first embodiment of the present invention, each sub-pixel region is provided with only one sub-pixel, and the display panel 800 further includes a substrate 810, a pixel electrode 820, and a pixel defining layer 830.
The pixel electrode 820 is located on the substrate 810 and located in the sub-pixel region.
The pixel defining layer 830 is disposed between adjacent sub-pixel regions and covers the edge of the pixel electrode 820. Therefore, the short circuit caused by the point discharge generated in the later operation can be prevented.
Referring to fig. 15, in the display panel according to the second embodiment of the present invention, each sub-pixel region is provided with at least two same color sub-pixels, and the display panel 900 further includes a substrate 910, a pixel electrode 920, a first pixel defining layer 930, and a second pixel defining layer 940.
The pixel electrode 920 is disposed on the substrate 910 and in the sub-pixel region.
The first pixel defining layer 930 is located between adjacent sub-pixels in the sub-pixel region and covers the edge of the pixel electrode 920.
Wherein the second pixel defining layer 940 is located between adjacent sub-pixel regions. That is, the second pixel definition layer 940 encloses an ink deposition area, so that the deposition area of the ink is effectively enlarged, and the printing process preparation of the high-resolution display is realized.
It should be noted that, when the second pixel definition layer 940 is manufactured, the second pixel definition layer 940 covering the edge of the pixel electrode 910 may be formed directly on the pixel electrode 920, or the first pixel definition layer 930 may be formed on the pixel electrode 920 first, and then another pixel definition layer may be formed on the first pixel definition layer 930 to obtain the second pixel definition layer 940.
According to the display screen adopting the technical scheme, because the included angle between the separating edge and the adjacent edge in the sub-pixel area is a non-acute angle, compared with the traditional display screen, the number of acute angle areas in the sub-pixel area is reduced, the accumulation phenomenon of materials in the acute angle areas in a printing process and the evaporation shadow effect caused by the acute angle areas in an evaporation process are reduced, and therefore the display effect can be improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (18)
1. A pixel structure is characterized in that the pixel structure comprises a display area, the display area comprises a plurality of sub-areas, an included angle between at least one group of two intersecting edges in each sub-area is an acute angle, at least one sub-area comprises at least one separating edge, the separating edge is positioned on one side of the acute angle and divides the sub-area into a sub-pixel area and a non-pixel area, in the sub-pixel area, the included angle between the separating edge and the adjacent edge is a non-acute angle, the non-pixel areas of the adjacent sub-areas are spliced together and configured to be a wiring area, and the wiring area is a pixel electrode via hole wiring area.
2. The pixel structure according to claim 1, wherein all the sub-regions include at least one separating edge, and in the sub-regions, the separating edges correspond to the number of the acute angles one to one, and the separating edges are located on one side of the corresponding acute angle and separate the sub-region into a sub-pixel region and a non-pixel region, and an included angle between any two intersecting edges in the sub-pixel region is a non-acute angle.
3. The pixel structure of claim 1, wherein the plurality of sub-regions are a first sub-region having at least one first color sub-pixel disposed in the sub-pixel region, a second sub-region having at least one second color sub-pixel disposed in the sub-pixel region, and a third sub-region having at least one third color sub-pixel disposed in the sub-pixel region, respectively; the first sub-region, the second sub-region and the third sub-region which are adjacent form a sub-region unit; the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are independently selected from a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other.
4. A pixel structure according to any one of claims 1 to 3, wherein each of the sub-pixel regions is provided with at least two identical colored light sub-pixels.
5. A pixel structure according to any one of claims 1-3, characterized in that the shape of the sub-regions is a diamond or a triangle.
6. The pixel structure according to any one of claims 1 to 3, wherein an area ratio of all the non-pixel regions to the pixel structure is 1:5 to 3:5.
7. The pixel structure according to claim 3, wherein the shape of the sub-region unit is a regular hexagon or a rhombus, two adjacent sub-region units are arranged on the same side, the sub-region units are repeatedly arranged in a column direction, and each column of the sub-region units is repeatedly arranged with the sub-region units in alternate columns.
8. The pixel structure according to claim 7, wherein the shape of the sub-region unit is a regular hexagon, and a line connecting a center of the regular hexagon and a vertex divides the sub-region unit into three sub-regions with equal area, namely a first sub-region, a second sub-region and a third sub-region arranged in a clockwise direction.
9. The pixel structure of claim 8, wherein the first sub-region is provided with a red sub-pixel, the second sub-region is provided with a blue sub-pixel, and the third sub-region is provided with a green sub-pixel; and one red sub-pixel, one blue sub-pixel and one green sub-pixel in each sub-area unit form a pixel unit.
10. The pixel structure according to claim 8, wherein each of the sub-regions is in a diamond shape, the first sub-region is provided with two red sub-pixels which are mirror-symmetrically distributed along a connecting line of two acute-angle vertices of the diamond shape, the second sub-region is provided with two blue sub-pixels which are mirror-symmetrically distributed along a connecting line of two acute-angle vertices of the diamond shape, and the third sub-region is provided with two green sub-pixels which are mirror-symmetrically distributed along a connecting line of two acute-angle vertices of the diamond shape; in the sub-area unit, a red sub-pixel, a blue sub-pixel and a green sub-pixel which are arranged on the same side in pairs form a pixel unit.
11. The pixel structure according to claim 7, wherein the shape of the sub-region unit is a diamond shape, and a connecting line between midpoints of four opposite sides of the diamond-shaped sub-region unit divides the sub-region unit into four sub-regions with equal areas, which are respectively a first sub-region, a second sub-region, a first sub-region and a third sub-region arranged in a clockwise direction, wherein the two first sub-regions are arranged oppositely.
12. The pixel structure according to claim 11, wherein the first sub-region is provided with four green sub-pixels two by two that are centrosymmetric along a center of the first sub-region, the second sub-region is provided with four blue sub-pixels two by two that are centrosymmetric along a center of the second sub-region, and the third sub-region is provided with four red sub-pixels two by two that are centrosymmetric along a center of the third sub-region; and one blue sub-pixel, one red sub-pixel and two green sub-pixels which are adjacent form a pixel unit.
13. The pixel structure according to claim 3, wherein the shape of the sub-region unit is isosceles trapezoid, and a connecting line of two end points of an upper base and a middle point of a lower base of the trapezoid sub-region unit divides the sub-region unit into a first sub-region, a second sub-region and a third sub-region which are linearly arranged; wherein the first, second and third sub-regions are all isosceles triangles in shape.
14. The pixel structure according to claim 13, wherein the shape of the region formed by two adjacent sub-region units in the row direction is a parallelogram, and after any one of the sub-region units is rotated 180 degrees from the central point of the sub-region unit, the arrangement structure is horizontally arranged in a mirror image with the adjacent sub-region unit in the row direction;
in the column direction, regions formed by two adjacent sub-region units in the row direction are repeatedly arranged along the extending direction of the edges of the regions.
15. The pixel structure according to claim 14, wherein the first sub-region is provided with three red sub-pixels with a vertex being the center of the first sub-region, the second sub-region is provided with three blue sub-pixels with a vertex being the center of the second sub-region, and the third sub-region is provided with three green sub-pixels with a vertex being the center of the third sub-region; in the sub-area unit, one red sub-pixel, one blue sub-pixel and one green sub-pixel which are adjacent form a pixel unit.
16. A display panel comprising a pixel structure according to any one of claims 1 to 15.
17. A display screen in accordance with claim 16, wherein each sub-pixel region is provided with only one sub-pixel, the display screen further comprising:
the pixel electrode is positioned in the sub-pixel area; and
and the pixel defining layer is positioned between the adjacent sub-pixel regions and covers the edge of the pixel electrode.
18. A display screen in accordance with claim 16, wherein each sub-pixel region is provided with at least two identical color light sub-pixels, the display screen further comprising:
the pixel electrode is positioned in the sub-pixel area;
the first pixel definition layer is positioned between adjacent sub-pixels in the sub-pixel area and covers the edge of the pixel electrode; and
and the second pixel definition layer is positioned between the adjacent sub-pixel areas.
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| CN111863911B (en) * | 2020-07-28 | 2022-03-01 | 合肥维信诺科技有限公司 | Pixel structure and display panel |
| WO2022193152A1 (en) * | 2021-03-16 | 2022-09-22 | 京东方科技集团股份有限公司 | Display panel, manufacturing method therefor, and display apparatus |
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