CN110767733B - Display panel and display device - Google Patents
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- CN110767733B CN110767733B CN201911055421.3A CN201911055421A CN110767733B CN 110767733 B CN110767733 B CN 110767733B CN 201911055421 A CN201911055421 A CN 201911055421A CN 110767733 B CN110767733 B CN 110767733B
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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 embodiment of the invention discloses a display panel and a display device, wherein the display panel comprises: the plurality of first sub-pixels and the plurality of second sub-pixels form a plurality of virtual parallelograms, and first vertexes and second vertexes of the virtual parallelograms are adjacently arranged; the first sub-pixel has a center located at the first vertex; the second sub-pixel is provided with a center positioned at the second vertex, and the opening area of the second sub-pixel is larger than that of the first sub-pixel; the third sub-pixel in the virtual parallelogram has a center located at the center point thereof; a third sub-pixel is arranged between any two adjacent virtual parallelograms; the outline of the virtual parallelogram forms a first virtual rectangle; the outer contour of 4 adjacent virtual parallelograms randomly arranged in a 2 x 2 array forms a second virtual rectangle, and a third sub-pixel in the second virtual rectangle has a center positioned at the center point of the second virtual rectangle. The pixel arrangement of the embodiment of the invention ensures that the display effect is better.
Description
Technical Field
Embodiments of the present invention relate to display technologies, and in particular, to a display panel and a display device.
Background
In recent years, display devices that are widely used mainly include liquid crystal display devices and organic light emitting display devices OLEDs. The OLED display panel has characteristics of self-luminescence, low power consumption, and high brightness, and does not require a separate light source, so it has a smaller thickness and weight compared to a liquid crystal display device. The OLED display panel includes a plurality of subpixels for emitting different colors of light.
In an OLED display panel, a plurality of pixel units are generally arranged in an array. Each pixel unit generally includes a red sub-pixel block R, a green sub-pixel block G, and a blue sub-pixel block B, which are sequentially arranged. When displaying, the three sub-pixel blocks respectively emit light with different brightness and are mixed into the required color in human vision.
However, the pixel arrangement structure of the conventional display panel cannot optimize the display effect.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for improving the display effect of the display panel.
An embodiment of the present invention provides a display panel, including: the pixel structure comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the plurality of first sub-pixels and the plurality of second sub-pixels form a plurality of virtual parallelograms which are arranged in an array mode, any included angle of the virtual parallelograms is not equal to 90 degrees, the virtual parallelograms are provided with two first vertexes and two second vertexes, and the first vertexes and the second vertexes are arranged adjacently;
the first sub-pixel having a center located at a first vertex of the virtual parallelogram; the second sub-pixel, spaced apart from the first sub-pixel, having a center located at a second vertex of the virtual parallelogram, the second sub-pixel having an open area larger than that of the first sub-pixel; one of the third sub-pixels in the virtual parallelogram has a center located at a center point of the virtual parallelogram; one third sub-pixel is arranged between any two adjacent virtual parallelograms; the outer contour of the virtual parallelogram forms a first virtual rectangle;
and the outer contours of 4 adjacent virtual parallelograms randomly arranged in a 2 x 2 array form a second virtual rectangle, and one third sub-pixel in the second virtual rectangle has the center positioned at the center point of the second virtual rectangle.
Based on the same inventive concept, the embodiment of the invention also provides a display device, which comprises the display panel.
In the embodiment of the invention, the pixel arrangement structure of the display panel is that the first sub-pixels and the second sub-pixels are alternately distributed on the vertexes of the virtual parallelogram, and the third sub-pixels are distributed at the central point of the virtual parallelogram, so that no residual space exists in the virtual parallelogram, and the sub-pixels can be closely arranged; the opening area of the second sub-pixel is larger than that of the first sub-pixel, so that the outline of the virtual parallelogram forms a first virtual rectangle, the space of the virtual parallelogram is fully utilized, and the display effect is optimized; the third sub-pixel is arranged between any two adjacent virtual parallelograms, the 2 x 2 array arrangement and the outline of the 4 adjacent virtual parallelograms form a second virtual rectangle, the third sub-pixel is further arranged at the central point of the second virtual rectangle, so that no residual space exists between the virtual parallelograms arranged in the array arrangement, the sub-pixels are closely arranged, the distance between the adjacent sub-pixels is reduced as much as possible, the space is fully utilized, the display is realized through pixel rendering, the resolution of the display of human eye vision can be improved, the improvement of the resolution and the optimization of image quality are realized, the human eye cannot watch uneven color, and the display uniformity is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a pixel layout of a display panel according to an embodiment of the invention;
fig. 4 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention;
fig. 5 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of a display panel according to an embodiment of the present invention. The display panel provided by the embodiment can be selected as an organic light emitting display panel. The display panel provided by the embodiment comprises: the pixel structure comprises a plurality of first sub-pixels 11, a plurality of second sub-pixels 12 and a plurality of third sub-pixels 13, wherein the plurality of first sub-pixels 11 and the plurality of second sub-pixels 12 form a plurality of virtual parallelograms 10 which are arranged in an array mode, any included angle of each virtual parallelogram 10 is not equal to 90 degrees, each virtual parallelogram 10 is provided with two first vertexes and two second vertexes, and the first vertexes and the second vertexes are arranged adjacently; a first sub-pixel 11 having a center located at a first vertex of the virtual parallelogram 10; a second sub-pixel 12 spaced apart from the first sub-pixel 11, having a center located at a second vertex of the virtual parallelogram 10, the second sub-pixel 12 having an opening area larger than that of the first sub-pixel 11; a third sub-pixel 13 in the virtual parallelogram 10 has a center located at the center point of the virtual parallelogram 10; a third sub-pixel 13 is arranged between any two adjacent virtual parallelograms 10; the outline of the virtual parallelogram 10 forms a first virtual rectangle 1; the outer contours of 4 adjacent virtual parallelograms 10 arranged in 2 x 2 array form a second virtual rectangle 2, and a third sub-pixel 13 in the second virtual rectangle 2 has a center located at the center of the second virtual rectangle 2.
In this embodiment, the display panel includes a plurality of first sub-pixels 11, a plurality of second sub-pixels 12, and a plurality of third sub-pixels 13, and the selectable sub-pixels refer to a minimum display unit for displaying an image. A signal line for driving each sub-pixel is provided between adjacent sub-pixels, and the signal line includes a scan line, a data line, a driving signal line, and the like. An insulating layer, such as a pixel defining layer, for defining each sub-pixel is further disposed between adjacent sub-pixels. The sub-pixels shown in the figures are essentially open areas of the sub-pixels.
In this embodiment, the optional display panel is an organic light emitting display panel. The organic light emitting display panel at least comprises an array substrate, an encapsulation layer and a plurality of light emitting devices arranged between the array substrate and the encapsulation layer, wherein a light emitting region of one light emitting device is an opening region of one sub-pixel. The array substrate comprises a substrate and an array layer; an optional substrate is formed of a transparent glass material, but is not limited thereto; the array layer comprises an active layer, array metal layers and insulating layers, wherein the array metal layers are arranged at intervals and at least comprise a grid metal layer, a source drain metal layer and a capacitance metal layer.
The light-emitting device at least comprises an anode, an anode display functional layer, an organic emission layer, a cathode display functional layer and a cathode; the anode display functional layer includes at least one of a hole transport layer, a hole injection layer, and an electron blocking layer, and the cathode display functional layer includes at least one of an electron transport layer, an electron injection layer, and a hole blocking layer. The anodes of the light emitting devices are independent of each other, each anode is located in a region corresponding to the light emitting device, and the cathodes of the light emitting devices are connected with each other to form a common whole layer structure. The anode can be selected as a reflective electrode, the material of the anode can be selected as metal with reflective property or conductive electrode material, such as Ag, Au, AlX, MoX, CuX, Al, Ti, Cr or ITO-Ag-ITO, the cathode can be selected as a transparent conductive film, and the material of the cathode can be selected as transparent electrode material such as ITO or Mg-Ag alloy.
Each light-emitting device is limited by a pixel defining layer, the pixel defining layer comprises a pixel defining layer opening exposing the anode, an organic emitting material layer is evaporated in the pixel defining layer opening, and a non-opening area of the pixel defining layer covers an area corresponding to the signal line; it is understood that the boundary of a light emitting device in the present invention may be the boundary of a pixel defining layer opening, i.e. a pixel defining layer opening defining a smallest display unit, i.e. an opening area of a sub-pixel.
The optional packaging layer is a film packaging layer, and the material of the film packaging layer can be formed by an inorganic thin film or formed by alternately laminating an inorganic thin film and an organic polymer thin film; the material of the optional inorganic thin film comprises one or more of silicon nitride, silicon oxide, aluminum oxide, titanium oxide, zirconium oxide, magnesium oxide and hafnium oxide, and the material of the organic polymer thin film comprises propylene-based polymer, silicon-based polymer or epoxy resin-based polymer.
In the embodiment of the present invention, the plurality of first sub-pixels 11 and the plurality of second sub-pixels 12 of the display panel form a plurality of virtual parallelograms 10 arranged in an array, and any two adjacent virtual hexagons 10 do not have a shared edge. The virtual parallelogram 10 includes 4 vertices, two of the diagonally disposed vertices are two first vertices, the other two diagonally disposed vertices are two second vertices, and the first vertices and the second vertices of the virtual parallelogram 10 are adjacently disposed. Any angle of the virtual parallelograms 10 is not equal to 90 °, the virtual parallelograms 10 are not rectangular, first vertex connections at the same position of a column of the virtual parallelograms 10 are shown to be located on a straight line, and second vertex connections at the same position of a column of the virtual parallelograms 10 are shown to be located on a straight line.
In the embodiment of the present invention, for a virtual parallelogram 10, the geometric center of a first sub-pixel 11 overlaps with a first vertex of the virtual parallelogram 10, the geometric center of a second sub-pixel 12 overlaps with a second vertex of the virtual parallelogram 10, and the geometric center of a third sub-pixel 13 overlaps with a center point of the virtual parallelogram 10. The second sub-pixels 12 and the first sub-pixels 11 are arranged at the vertexes of the virtual parallelogram 10 at intervals, and based on the structure of the virtual parallelogram 10, the geometric centers of the second sub-pixels 12 and the geometric centers of the first sub-pixels 11 are arranged in a staggered manner, so that the opening area of the second sub-pixels 12 can be increased by fully utilizing the space of the virtual parallelogram, and the picture display effect is better.
In the embodiment of the present invention, the third sub-pixel 13 is spaced apart from the first sub-pixel 11 and the second sub-pixel 12, so that the mask fabrication and the evaporation of the luminescent materials with different colors for different sub-pixels are facilitated. The third sub-pixel 13 is arranged in the center of the virtual parallelogram 10 formed by the first sub-pixel 11 and the second sub-pixel 12, so that the space inside the virtual parallelogram is fully utilized, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 can be tightly arranged under the same process condition, the distance between the adjacent sub-pixels is reduced as much as possible, the number of the sub-pixels in a unit area is increased, and the resolution is improved. The third sub-pixel 13 is arranged inside the virtual parallelogram 10, so that the third sub-pixel 13 can make full use of the space in the virtual parallelogram 10, and the opening area of the third sub-pixel 13 can be increased as much as possible; meanwhile, the distance between the third sub-pixel 13 and the adjacent first sub-pixel 11 or the difference between the distance between the third sub-pixel 13 and the adjacent second sub-pixel 12 is small, display is realized through pixel rendering, the resolution of the display which is visible to human eyes can be improved, the improvement of the resolution and the optimization of image quality are realized, the human eyes cannot see uneven color, the display uniformity is improved, and the image display effect is better.
It is understood that the geometric center of the sub-pixel is the geometric center of the opening region of the sub-pixel; in addition, in actual manufacturing, there may be a slight shift due to the process accuracy limiting the overlap of the geometric center of the sub-pixel with the vertex or center point of the virtual parallelogram.
In the embodiment of the present invention, a third sub-pixel 13 is disposed between any two adjacent virtual parallelograms 10; the outer contour of the virtual parallelogram 10 forms a first virtual rectangle 1, and the first virtual rectangles 1 are arranged in an array, so that the first virtual rectangles 1 arranged in an array are closely arranged. A third sub-pixel 13 is arranged between any two adjacent first virtual rectangles 1, the third sub-pixel 13 is shared by the two adjacent first virtual rectangles 1, the number of the third sub-pixels 13 is increased, and the first virtual rectangles 1 arranged in a row or a column are not provided with residual regions which cannot be utilized, so that the sub-pixels are closely arranged, more sub-pixels can be accommodated in a unit area, the picture quality is improved, and the display effect is optimized.
In the embodiment of the present invention, the outer contours of 4 adjacent virtual parallelograms 10 randomly arranged in a 2 × 2 array form a second virtual rectangle 2, and a third sub-pixel 13 in the second virtual rectangle 2 has a center located at the center of the second virtual rectangle 2, so that the space surrounded by the 4 adjacent virtual parallelograms 10 arranged in the 2 × 2 array is fully utilized, no remaining area which cannot be utilized exists in the second virtual rectangle 2, and the third sub-pixel 13 is shared by the 4 adjacent virtual parallelograms 10 in the 2 × 2 array, thereby increasing the number of the third sub-pixels 13. Therefore, the display area does not have the residual area which cannot be utilized, and the inside and the outside of the second virtual rectangle 2 do not have the residual area which cannot be utilized, so that the sub-pixels of the display area are closely arranged, more sub-pixels can be accommodated in the unit area, the resolution of the display panel is improved, and high PPI display is realized.
It is understood that the outer contour of the virtual parallelogram 10 specifically refers to the shape formed by the outermost edges of the four sub-pixels located at the four vertices of the virtual parallelogram 10, and obviously, the outermost edges of the first sub-pixel 11 and the second sub-pixel 12 distributed at two end points of one side of the virtual parallelogram 10 are flush, and here, may be flush with the outermost edge points, or flush with the outermost edge points and the outermost edge lines. The second virtual rectangle 2 is also the shape formed by the outermost edges of the edge sub-pixels, and is not described in detail.
In the embodiment of the present invention, the number ratio of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 in the selectable display panel is 1:1: 2. As shown in fig. 2, for a virtual parallelogram 10, the first sub-pixel 11 and the second sub-pixel 12 at two end points of one side of the virtual parallelogram 10 and the two third sub-pixels 13 at two sides of the one side constitute a minimum display bright point 20. For a second virtual rectangle 2, the third sub-pixel 13 between two adjacent virtual parallelograms 10, the third sub-pixel 13 at the center point of the second virtual rectangle 2, and the nearest neighboring first sub-pixel 11 and second sub-pixel 12 between the two third sub-pixels 13 constitute a minimum display bright point 20. The minimum display bright spots 20 each include one first sub-pixel 11, one second sub-pixel 12 and two third sub-pixels 13, so the number ratio of the first sub-pixel to the second sub-pixel to the third sub-pixel is 1:1:2, the number of the third sub-pixels 13 in the display panel is increased, and the picture quality is further improved.
In the embodiment of the invention, the pixel arrangement structure of the display panel is that the first sub-pixels and the second sub-pixels are alternately distributed on the vertexes of the virtual parallelogram, and the third sub-pixels are distributed at the central point of the virtual parallelogram, so that no residual space exists in the virtual parallelogram, and the sub-pixels can be closely arranged; the opening area of the second sub-pixel is larger than that of the first sub-pixel, so that the outline of the virtual parallelogram forms a first virtual rectangle, the space of the virtual parallelogram is fully utilized, and the display effect is optimized; the third sub-pixel is arranged between any two adjacent virtual parallelograms, the 2 x 2 array arrangement and the outline of the 4 adjacent virtual parallelograms form a second virtual rectangle, the third sub-pixel is further arranged at the central point of the second virtual rectangle, so that no residual space exists between the virtual parallelograms arranged in the array arrangement, the sub-pixels are closely arranged, the distance between the adjacent sub-pixels is reduced as much as possible, the space is fully utilized, the display is realized through pixel rendering, the resolution of the display of human eye vision can be improved, the improvement of the resolution and the optimization of image quality are realized, the human eye cannot watch uneven color, and the display uniformity is improved.
Exemplarily, on the basis of the above technical solution, the third sub-pixel arranged in the virtual parallelogram 10 as shown in fig. 3 may be selected as a first type third sub-pixel 13a, an extending direction of the first type third sub-pixel 13a is parallel to an extending direction of a first diagonal line 10a, and the first diagonal line 10a is a connection line of two first vertices of the virtual parallelogram 10.
In the embodiment of the present invention, the opening area of the second sub-pixel 12 is larger than the opening area of the first sub-pixel 11, and the outer contour of the virtual parallelogram 10 forms the first virtual rectangle 1, and obviously, the pitch space between the second sub-pixels 12 diagonally arranged in the virtual parallelogram 10 is smaller than the pitch space between the first sub-pixels 11 diagonally arranged. The first diagonal line 10a is a connecting line of centers of the two first sub-pixels 11 of the virtual parallelogram 10, and the extending direction of the first-class third sub-pixel 13a is parallel to the extending direction of the first diagonal line 10a, so that the space between the two first sub-pixels 11 in the virtual parallelogram 10 can be fully utilized, the area of the first-class third sub-pixel 13a is increased, and the display effect is further improved.
The size of the first-type third sub-pixel 13a in the extending direction of the first diagonal line 10a may be selected to be larger than the size of the first-type third sub-pixel 13a in a first direction, which intersects the extending direction of the first diagonal line 10 a.
In the embodiment of the present invention, the pitch space between the second sub-pixels 12 diagonally disposed in the virtual parallelogram 10 is smaller than the pitch space between the first sub-pixels 11 diagonally disposed, and the extending direction of the first-type third sub-pixels 13a is parallel to the extending direction of the first diagonal line 10a, so that the first-type third sub-pixels 13a can increase in size along the direction of the first diagonal line 10a, so that the first-type third sub-pixels 13a fully utilize the larger space on the first diagonal line 10a inside the virtual parallelogram 10, and the opening area of the first-type third sub-pixels 13a is increased as much as possible, thereby improving the display effect. Meanwhile, the first-type third sub-pixel 13a, the first sub-pixel 11 and the second sub-pixel 12 have a distance, and the color mixing phenomenon of the third sub-pixel 13 and the first sub-pixel 11 or the second sub-pixel 12 when the organic emission layer of the sub-pixel is evaporated can not occur, so that the display uniformity is improved.
The opening shape of the optional first-type third sub-pixel 13a has a hexagonal shape.
In the embodiment of the present invention, the opening shape of the first-type third sub-pixel 13a may be a hexagon, so that the internal space of the virtual parallelogram 10a may be fully utilized to increase the opening area of the first-type third sub-pixel 13a, and improve the display effect. However, in the present invention, the shape is not limited to a hexagon, and for example, the shape may be selected to be a rectangle, a diamond, or another shape, and the designer may design the shape, the size, and the area of the first type third sub-pixel according to the internal space of the virtual parallelogram, which is not limited in this respect. The first sub-pixel 11, the second sub-pixel 12 and the first type third sub-pixel 13a in the virtual parallelogram 10 are closely arranged, and the distance between the edges of the adjacent sub-pixels is reduced as much as possible, so that the opening area of the sub-pixels is increased under the condition of the same resolution, the display effect is improved, and the service life is prolonged.
Illustratively, on the basis of the above technical solution, the third sub-pixel arranged between two adjacent virtual parallelograms 10 as shown in fig. 4 may be selected as a second type third sub-pixel 13b, the extending direction of the second type third sub-pixel 13b is parallel to the extending direction of the first connecting line 10b, and the first connecting line 10b is a connecting line of two first vertices on two adjacent sides of the two adjacent virtual parallelograms 10.
In the embodiment of the present invention, the plurality of virtual parallelograms 10 are arranged in an array, two adjacent virtual parallelograms 10 do not have a shared edge, and two adjacent virtual parallelograms 10 have two opposite edges. It can be understood that 4 end points of two opposite sides between two adjacent virtual parallelograms 10 arranged in an array also form a quadrilateral structure, wherein two first vertex positions arranged diagonally of the quadrilateral structure are distributed with first sub-pixels 11, and two second vertex positions arranged diagonally of the quadrilateral structure are distributed with second sub-pixels 12. The second-type third sub-pixel 13b can be selected to have a center located at the center point of the quadrilateral structure, so that the second-type third sub-pixel 13b does not deviate from the center point, the phenomenon that the second-type third sub-pixel is closer to the first sub-pixel 11 or the second sub-pixel 12 is avoided, and the color mixing phenomenon is reduced.
In the embodiment of the present invention, the opening area of the second sub-pixel 12 is larger than the opening area of the first sub-pixel 11, and the pitch space between the second sub-pixels 12 diagonally arranged in the quadrilateral structure may be smaller than the pitch space between the first sub-pixels 11 diagonally arranged. The first connecting line 10b is a connecting line of two first vertexes on two adjacent edges of the two adjacent virtual parallelograms 10, and the extending direction of the second type third sub-pixel 13b is parallel to the extending direction of the first connecting line 10b, so that the space between two opposite first sub-pixels 11 between the two adjacent virtual parallelograms 10 can be fully utilized, the area of the second type third sub-pixel 13b is increased, and the display effect is further improved.
The second type of third sub-pixels 13b may be selected to have a larger dimension in the extending direction of the first line 10b than the second type of third sub-pixels 13b in a second direction, which intersects the extending direction of the first line 10 b.
In the embodiment of the present invention, the opening area of the second sub-pixel 12 is larger than the opening area of the first sub-pixel 11, so that the space between the second sub-pixels 12 in the quadrilateral structure is smaller than the space between the first sub-pixels 11 arranged diagonally, and the size of the second type third sub-pixel 13b along the direction of the first connection line 10b can be increased, so that the second type third sub-pixel 13b fully utilizes the larger space on the first connection line 10b in the quadrilateral structure, and the opening area of the second type third sub-pixel 13b can be increased as much as possible, thereby improving the display effect. Meanwhile, the second type third sub-pixel 13b keeps a certain distance from the first sub-pixel 11 and the second sub-pixel 12, so that when the organic emission layer of the sub-pixels is evaporated, the phenomenon of color mixing of the third sub-pixel 13 and the first sub-pixel 11 or the second sub-pixel 12 is avoided, and the display effect is improved.
The opening shapes of a plurality of second-type third sub-pixels optionally arranged between a row of virtual parallelograms have rectangular shapes; the opening shapes of the plurality of second-type third sub-pixels disposed between a column of virtual parallelograms have a hexagonal shape.
In the embodiment of the present invention, the opening shape of the second type third sub-pixel 13b is defined according to the size of the space where the second type third sub-pixel is located, so as to fully utilize the space where the second type third sub-pixel is located, increase the opening area of the second type third sub-pixel 13b, and improve the display effect. Therefore, in the present invention, the opening shape of the second type third sub-pixel is not limited to the above example, the second type third sub-pixel in the row direction and the column direction may also be the same shape, and may also be a diamond shape or other shapes, and the relevant designer may design the shape, size and area of the first type third sub-pixel according to the size of the space between the adjacent virtual parallelograms, which is not particularly limited herein. In this embodiment, the third sub-pixels are disposed between the adjacent virtual parallelograms 10, so that the first sub-pixels 11, the second sub-pixels 12, and the first-type third sub-pixels 13a are closely arranged, and the distance between the edges of the adjacent sub-pixels is reduced as much as possible, thereby increasing the opening area of each sub-pixel under the condition of the same resolution, and improving the display effect and the service life.
For example, based on the above technical solution, the third sub-pixel arranged at the center point of the second virtual rectangle 2 as shown in fig. 5 may be selected as a third type of third sub-pixel 13c, the extending direction of the third type of third sub-pixel 13c is parallel to the extending direction of the second connection line 10c, and the second connection line 10c is a connection line of two first vertices nearest to the third type of third sub-pixel 13 c.
In the embodiment of the present invention, the plurality of virtual parallelograms 10 are arranged in an array, and 4 opposite vertices of 4 adjacent virtual parallelograms 10 in a 2 × 2 array form a quadrilateral structure, wherein two first vertices of the quadrilateral structure, which are diagonally arranged, are distributed with first sub-pixels 11, and two second vertices of the quadrilateral structure, which are diagonally arranged, are distributed with second sub-pixels 12. The third sub-pixel 13c of the third type is located at the center of the center point of the second virtual rectangle 2, so that the phenomenon that the third sub-pixel 13c of the third type is closer to the first sub-pixel 11 or the second sub-pixel 12 can be avoided, and the color mixing phenomenon is reduced.
In the embodiment of the present invention, the opening area of the second sub-pixel 12 is larger than the opening area of the first sub-pixel 11, and the pitch space between the second sub-pixels 12 diagonally arranged in the quadrilateral structure may be smaller than the pitch space between the first sub-pixels 11 diagonally arranged. The second connecting line 10c is a connecting line of two first vertexes of the quadrilateral structure, which are oppositely arranged, and the extending direction of the third sub-pixel 13c is parallel to the extending direction of the second connecting line 10c, so that the space between the two first sub-pixels 11 of the quadrilateral structure can be fully utilized, the area of the third sub-pixel 13c can be increased, and the display effect can be further improved.
Optionally, a dimension of the third type third sub-pixel 13c along the extending direction of the second connection line 10c is larger than a dimension of the third type third sub-pixel 13c along a third direction, and the third direction intersects with the extending direction of the second connection line 10 c.
In the embodiment of the present invention, the opening area of the second sub-pixel 12 is larger than the opening area of the first sub-pixel 11, so that the distance space between the second sub-pixels 12 in the quadrilateral structure is smaller than the distance space between the first sub-pixels 11 arranged diagonally, and the size of the third type of third sub-pixel 13c along the direction of the second connection line 10c can be increased, so that the third type of third sub-pixel 13c fully utilizes the larger space on the second connection line 10c in the quadrilateral structure, and the opening area of the third type of third sub-pixel 13c can be increased as much as possible, thereby improving the display effect. Meanwhile, when the organic emitting layer of the sub-pixel is evaporated, the phenomenon of color mixing of the third sub-pixel 13 and the first sub-pixel 11 or the second sub-pixel 12 is avoided, and the display effect is improved.
The opening shape of the optional third type third sub-pixel 13c has a rectangular shape.
In the embodiment of the present invention, the shape of the opening of the third type of third sub-pixel 13c may be selected to be rectangular, so that the space surrounded by the adjacent 4 virtual parallelograms 10a in the 2 × 2 array may be fully utilized, the opening area of the third type of third sub-pixel 13c is increased, and the display effect is improved. However, in the present invention, the shape is not limited to a rectangle, and for example, the shape may also be selected to be a hexagon or a rhombus or other shapes, and the designer may design the shape, size and area of the third sub-pixel according to the internal space surrounded by the adjacent 4 virtual parallelograms of the 2 × 2 array, which is not limited herein. The third sub-pixel 13 is arranged at the central point of the second virtual rectangle 2, so that the second virtual rectangle 2 has no residual space, the sub-pixels are closely arranged, and the distance between the edges of the adjacent sub-pixels is reduced as much as possible, thereby increasing the opening area of the sub-pixels under the condition of the same resolution, reducing the density of the driving current, improving the display effect and prolonging the service life.
For example, for the display panel described in any of the above embodiments, the third sub-pixel may further have a first side edge and a second side edge in the extending direction thereof, and the distance from the first side edge to the nearest neighboring first vertex is equal to the distance from the second side edge to the nearest neighboring first vertex.
Referring to fig. 3, the third sub-pixel 13a has a first side edge and a second side edge in the extending direction thereof, and the first side edge is selected to be an edge-most point located on the first diagonal line 10a, the second side edge is selected to be another edge-most point located on the first diagonal line 10a, and the distance between the first side edge and the nearest neighboring first vertex is equal to the distance between the second side edge and the nearest neighboring first vertex, that is, the distance between the first side edge and the nearest neighboring first vertex and the distance between the second side edge and the nearest neighboring first vertex are both a. The third sub-pixel 13a has a center located at the second vertex of the virtual parallelogram 10, and the distance between the first side edge of the third sub-pixel 13 and the nearest neighboring first vertex in the extending direction of the third sub-pixel is equal to the distance between the second side edge of the third sub-pixel and the nearest neighboring first vertex, so that the third sub-pixel 13a and the nearest neighboring two first sub-pixels 11 have the same pitch, and the brightness of the two smallest display bright points multiplexed by one third sub-pixel 13a can be kept consistent, thereby improving the display uniformity. The third sub-pixel 13a can also increase the opening area of the third sub-pixel 13a by making full use of the space between the two diagonally arranged first sub-pixels 11.
Referring to fig. 4, the third sub-pixel 13b has a first side edge and a second side edge in the extending direction, optionally the first side edge is an edge located on the first connection line 10b, the second side edge is another edge located on the first connection line 10b, the distance between the first side edge and the nearest first vertex is equal to the distance between the second side edge and the nearest first vertex, i.e. the distance between the first side edge and the nearest first vertex and the distance between the second side edge and the nearest first vertex are both b. Referring to fig. 5, the first side edge and the second side edge of the third sub-pixel 13c in the extending direction thereof are both b away from the nearest neighbor first vertex and b away from the nearest neighbor first vertex. It can be understood that the third sub-pixel 13 has the same pitch with the two nearest first sub-pixels 11, the brightness of the two smallest display bright spots multiplexed by one third sub-pixel 13 can be kept consistent, the display uniformity is improved, and the third sub-pixel 13 can also fully utilize the space between the two diagonally arranged first sub-pixels 11 to increase the opening area of the third sub-pixel 13.
Any one of the third sub-pixels 13 may be selected, and the distance between the first side edge and the nearest neighboring first vertex and the distance between the second side edge and the nearest neighboring first vertex are both the first preset distances. In this embodiment, the first preset distance is optionally a, and a ═ b, that is, for any one third subpixel, the distance between the third subpixel and the nearest two first vertices is kept by a ═ b. The third sub-pixels 13 with different shapes ensure that a is equal to b, so that the space of the virtual parallelogram 10 enclosed by the first sub-pixels 11 and the second sub-pixels 12 can be fully utilized, the opening area of the sub-pixels is increased, and the first sub-pixels 11 and the second sub-pixels 12 are not limited by long and short diagonal lines.
The opening areas of any two third sub-pixels are optionally the same. In this embodiment, the opening areas of the third sub-pixels are the same, and the driving currents are equal, so that the display uniformity can be improved. Specifically, in a minimum display bright point, the number of the third sub-pixels is larger than that of the first sub-pixels or the second sub-pixels, the opening areas of the third sub-pixels are kept consistent, and when the data lines charge the third sub-pixels, the driving currents of the third sub-pixels in the minimum display bright point are equal in magnitude, so that the display uniformity of the minimum display bright point can be improved. When displaying, the human eye can feel that the display with sub-pixel arrangement according to the quantity ratio and the display effect has higher resolution and excellent display uniformity. In addition, the opening area of the third sub-pixel is kept consistent, so that the mask is convenient to manufacture, and the color mixing phenomenon can not occur when the organic light-emitting material is correspondingly evaporated.
The opening shape of the optional first sub-pixel has a diamond shape, and the opening shape of the second sub-pixel has a hexagonal shape. In the embodiment of the present invention, the shapes of the first sub-pixel and the second sub-pixel are not limited thereto. Specifically, in order to fully utilize the space of the virtual parallelogram and increase the opening area of the sub-pixels, in this embodiment, any two adjacent sub-pixels may be selected, and when the opposite edges of the two adjacent sub-pixels are both sides, the two opposite sides of the two adjacent sub-pixels may be selected to be parallel. Thus, the mask can be conveniently manufactured, and the color mixing phenomenon is avoided.
The optional first sub-pixel is configured to emit red light, the second sub-pixel is configured to emit blue light, and the third sub-pixel is configured to emit green light. The organic emission layer corresponding to the first sub-pixel is a red organic light emitting material such that the first sub-pixel is configured to emit red light, the organic emission layer corresponding to the second sub-pixel is a blue organic light emitting material such that the second sub-pixel is configured to emit blue light, and the organic emission layer corresponding to the third sub-pixel is a green organic light emitting material such that the third sub-pixel is configured to emit green light. The second sub-pixel is configured to emit blue light, and the opening area of the second sub-pixel is increased, and based on the shorter lifetime of the blue light, the opening area of the second sub-pixel is increased in the embodiment, so that the current density of the second sub-pixel is reduced, and the lifetime of the second sub-pixel can be improved. In this embodiment, the number of the third sub-pixels in the minimum bright display point is greater than the number of the first sub-pixels or the second sub-pixels, and the number of the sub-pixels configured to emit green light is the largest if the third sub-pixels are configured to emit green light. Because human eyes are most sensitive to green light vision, the number of the third sub-pixels configured to emit green light in the minimum display bright spots is larger than the number of the first sub-pixels or the second sub-pixels, the human eyes can feel that the display with the sub-pixels arranged according to the number proportion has higher resolution ratio during display, and the picture display effect is improved.
Based on the same inventive concept, embodiments of the present invention further provide a display device, which includes the display panel according to any of the above embodiments. The embodiment of the invention particularly provides a pixel arrangement mode of a display panel so as to optimize the display effect.
In the embodiment of the invention, the opening area of the second sub-pixel is larger than that of the first sub-pixel, so that the opening area of the second sub-pixel is increased, and the luminous efficiency of the second sub-pixel can be improved. The outline of the virtual parallelogram is a first virtual rectangle, a third sub-pixel is arranged in the virtual parallelogram, and no residual space exists; a third sub-pixel is arranged between the adjacent virtual parallelograms, and no residual space exists between the adjacent virtual parallelograms; and a region surrounded by the virtual parallelogram of the 2 x 2 array is provided with a third sub-pixel, and no residual space exists. Obviously, while ensuring high resolution, the sub-pixels are closely arranged, the space is fully utilized, the opening area of the sub-pixels is increased as much as possible, and the display effect is improved.
In the embodiment of the invention, the shapes and the areas of the first sub-pixel, the second sub-pixel and the third sub-pixel are not limited, and related practitioners can fully utilize the space and reasonably set the shapes and the areas of the three sub-pixels according to the requirements of products, so that the opening area of the sub-pixels is increased as much as possible while the high resolution is ensured, and the display effect is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (17)
1. A display panel, comprising: the pixel structure comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the plurality of first sub-pixels and the plurality of second sub-pixels form a plurality of virtual parallelograms which are arranged in an array mode, any included angle of the virtual parallelograms is not equal to 90 degrees, the virtual parallelograms are provided with two first vertexes and two second vertexes, and the first vertexes and the second vertexes are arranged adjacently;
the first sub-pixel having a center located at a first vertex of the virtual parallelogram; the second sub-pixel, spaced apart from the first sub-pixel, having a center located at a second vertex of the virtual parallelogram, the second sub-pixel having an open area larger than that of the first sub-pixel; one of the third sub-pixels in the virtual parallelogram has a center located at a center point of the virtual parallelogram; one third sub-pixel is arranged between any two adjacent virtual parallelograms; the outer contour of the virtual parallelogram forms a first virtual rectangle;
the outer contours of 4 adjacent virtual parallelograms randomly arranged in a 2 x 2 array form a second virtual rectangle, and one third sub-pixel in the second virtual rectangle has a center located at the center point of the second virtual rectangle;
the sub-pixels of the display panel include a light emitting device including an anode, an organic emission layer, and a cathode, the anode being a reflective electrode.
2. The display panel according to claim 1, wherein the third sub-pixels arranged in the virtual parallelogram are third sub-pixels of a first type, and the extending direction of the third sub-pixels of the first type is parallel to the extending direction of a first diagonal line, and the first diagonal line is a connecting line of two first vertices of the virtual parallelogram.
3. The display panel according to claim 2, wherein a dimension of the first-type third sub-pixel in an extending direction of the first diagonal line is larger than a dimension of the first-type third sub-pixel in a first direction, the first direction crossing the extending direction of the first diagonal line.
4. The display panel according to claim 3, wherein the opening shape of the first-type third sub-pixel has a hexagonal shape.
5. The display panel according to claim 1, wherein the third sub-pixels disposed between two adjacent virtual parallelograms are third sub-pixels of a second type, the extending direction of the third sub-pixels of the second type is parallel to the extending direction of a first connecting line, and the first connecting line is a connecting line of two first vertices on two adjacent sides of the two adjacent virtual parallelograms.
6. The display panel according to claim 5, wherein a dimension of the second type third sub-pixel in an extending direction of the first wire is larger than a dimension of the second type third sub-pixel in a second direction, the second direction crossing the extending direction of the first wire.
7. The display panel according to claim 6, wherein the opening shapes of the plurality of the second-type third sub-pixels arranged between one row of the virtual parallelogram have a rectangular shape;
the opening shapes of the plurality of second-type third sub-pixels disposed between a column of the virtual parallelograms have hexagonal shapes.
8. The display panel according to claim 1, wherein the third sub-pixel arranged at the center point of the second virtual rectangle is a third sub-pixel of a third kind, the extending direction of the third sub-pixel of the third kind is parallel to the extending direction of a second connecting line, and the second connecting line is a connecting line of two first vertexes nearest to the third sub-pixel of the third kind.
9. The display panel according to claim 8, wherein a dimension of the third type of third sub-pixel along the extending direction of the second connecting line is larger than a dimension of the third type of third sub-pixel along a third direction, and the third direction intersects with the extending direction of the second connecting line.
10. The display panel according to claim 9, wherein the opening shape of the third type of third sub-pixel has a rectangular shape.
11. A display panel as claimed in claim 2, 5 or 8 characterized in that the third sub-pixel has a first side edge and a second side edge in its extension direction, the first side edge being at a distance from the nearest neighbour of the first vertex which is equal to the distance from the second side edge to the nearest neighbour of the first vertex.
12. The display panel according to claim 11, wherein the distance between the first side edge and the nearest neighboring first vertex and the distance between the second side edge and the nearest neighboring first vertex are both a first preset distance for any one of the third subpixels.
13. The display panel according to claim 1, wherein the opening areas of any two of the third sub-pixels are the same.
14. The display panel according to claim 1, wherein the opening shape of the first sub-pixel has a diamond shape, and the opening shape of the second sub-pixel has a hexagonal shape.
15. The display panel according to claim 1, wherein the first sub-pixel is configured to emit red light, the second sub-pixel is configured to emit blue light, and the third sub-pixel is configured to emit green light.
16. The display panel according to claim 1, wherein the ratio of the number of the first sub-pixels, the number of the second sub-pixels, and the number of the third sub-pixels in the display panel is 1:1: 2.
17. A display device characterized by comprising the display panel according to any one of claims 1 to 16.
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| CN111341815B (en) * | 2020-03-11 | 2021-08-13 | 昆山国显光电有限公司 | Pixel arrangement structure, display panel and display device |
| CN111292673B (en) | 2020-04-03 | 2022-10-14 | 武汉天马微电子有限公司 | Display panel and display device |
| CN112534583A (en) * | 2020-09-10 | 2021-03-19 | 京东方科技集团股份有限公司 | Display substrate, display device and high-precision metal mask plate |
| WO2022052011A1 (en) * | 2020-09-10 | 2022-03-17 | 京东方科技集团股份有限公司 | Display substrate, display device, and high-precision metal mask |
| CN112201681B (en) * | 2020-10-10 | 2022-08-09 | 京东方科技集团股份有限公司 | Pixel arrangement structure, electroluminescent display panel, display device and mask plate |
| CN112366219B (en) * | 2020-11-09 | 2022-09-23 | 京东方科技集团股份有限公司 | Pixel arrangement structure, display panel and display device |
| CN114975518A (en) * | 2021-02-24 | 2022-08-30 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof, display device and mask plate |
| CN113097273B (en) * | 2021-03-31 | 2023-05-02 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113223417A (en) * | 2021-06-07 | 2021-08-06 | 武汉天马微电子有限公司 | Display panel and display device |
| CN117255584A (en) * | 2022-06-06 | 2023-12-19 | 上海和辉光电股份有限公司 | Pixel array, display panel and metal mask plate |
| CN116798336B (en) * | 2023-08-21 | 2023-11-14 | 长春希达电子技术有限公司 | Sub-pixel unit arrangement structure, display, virtual pixel structure and multiplexing method |
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