Pixel arrangement structure and display panel using the same

Abstract

The utility model relates to a kind of pixel arrangement structure and the display panel applied with the structure, including the pixel unit of array arrangement, pixel unit includes two first sub-pixels, two second sub-pixels and a third sub-pixel, the length direction of two first sub-pixels extends along first direction, the length direction of two second sub-pixels extends along the second direction intersecting with first direction, first sub-pixel and second sub-pixel are sequentially spaced and are connected and are formed in the center place and enclose and form light-transmitting area, third sub-pixel is located the outside at the junction of one of first sub-pixel and second sub-pixel.The periphery of a third sub-pixel has four first sub-pixels and four second sub-pixels, each sub-pixel is at least shared once, in the case of same sub-pixel, relative to the pixel arrangement of prior art display panel, by pixel sharing can make on the basis of certain sub-pixel quantity, with more quantity of pixel display unit, to improve the resolution of display panel.

Description

Technical Field

[0001] This utility model relates to the field of display technology, specifically to a pixel arrangement structure and a display panel using the structure. Background Technology

[0002] Organic light-emitting diodes (OLEDs) have been widely used in the display industry due to their advantages such as self-illumination, low driving voltage, high efficiency, high definition, and ability to achieve flexible displays.

[0003] A Chinese invention patent with application number 202110599971.2 (authorization announcement number CN 113130619 B) discloses a display substrate, a display panel, and a display device. One embodiment of the display substrate includes an array of pixel units, each pixel unit comprising a first pixel unit and a second pixel unit. The first pixel unit includes at least one first sub-pixel unit, each first sub-pixel unit including a first red sub-pixel, a first green sub-pixel, and a first blue sub-pixel spaced apart along a first direction. The second pixel unit includes at least one second sub-pixel unit, each second sub-pixel unit including a second red sub-pixel, a second green sub-pixel, and a second blue sub-pixel spaced apart along a second direction. In this strip-shaped arrangement of red (R), green (G), and blue (B) sub-pixels, the opening area of ​​the precision metal mask corresponding to each sub-pixel is elongated, making linearity control difficult and prone to color mixing.

[0004] Therefore, the current pixel arrangement structure of the pixel layer and the corresponding display panel need further improvement. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a pixel arrangement structure with good display effect and low mask manufacturing difficulty, in view of the current situation of the prior art.

[0006] The second technical problem to be solved by this utility model is to provide a display panel with the above-mentioned pixel arrangement structure, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a pixel arrangement structure, comprising pixel units arranged in an array, wherein each pixel unit includes two first sub-pixels, two second sub-pixels, and one third sub-pixel. The length direction of the two first sub-pixels extends along a first direction, and the length direction of the two second sub-pixels extends along a second direction intersecting the first direction. The first sub-pixels and second sub-pixels are sequentially spaced and spliced ​​together, forming a light-transmitting area at their center. The third sub-pixel is located outside the junction of one of the first sub-pixels and one of the second sub-pixels. After the pixel units are arranged in an array, the third sub-pixel precisely fills the gap between the first and second sub-pixels in adjacent pixel units.

[0008] Preferably, both the first sub-pixel and the second sub-pixel are hexagons, and each hexagon has an axis of symmetry perpendicular to its own length direction. The edges of adjacent first and second sub-pixels overlap and are of equal length. Using this scheme, two first sub-pixels and two second sub-pixels enclose a sealed, rectangular light-transmitting area. In other embodiments, both the first and second sub-pixels can also be pentagons with an axis of symmetry perpendicular to their own length direction.

[0009] Preferably, the first sub-pixel and the second sub-pixel have the same shape. Using the above scheme, the light-transmitting area is square. In other embodiments, the lengths of the first sub-pixel and the second sub-pixel can be different, resulting in a rectangular light-transmitting area.

[0010] Preferably, the hexagons of the first sub-pixel and the second sub-pixel each have an included angle of 90 degrees; the third sub-pixel is a square, and the side length of the square is equal to twice the side length of the hexagon that forms the 90-degree included angle. Using this scheme, the 90-degree included angles in the first sub-pixel and the second sub-pixel are combined to form a 180-degree angle, thus the two first sub-pixels and two second sub-pixels are joined to form an octagon; the hypotenuse of the third sub-pixel is simultaneously adjacent to the joined first and second sub-pixels. This helps to improve the density of the sub-pixel arrangement in the pixel structure, enabling a larger number of sub-pixels to be arranged within a certain layout area, thereby improving the pixel density and resolution of the pixel structure.

[0011] Preferably, the area ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel is 1:1:(1-2). In a specific embodiment, the area ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel can be adjusted by adjusting the side length ratio of the hexagons in the first and second sub-pixels. For example, when the side length forming a 90-degree angle in the hexagon is 1 and the side length away from the 90-degree angle is 2, then the area ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel is (1+2√2):(1+2√2):4. By adjusting the area and combining it with the decay rate of different color pixel materials, the overall decay rate of the display module / display device tends to be consistent, which can effectively reduce color shift caused by inconsistent RGB efficiency lifespan and help extend the life of the display panel.

[0012] Preferably, both the first sub-pixel and the second sub-pixel are equilateral hexagons. Using the above scheme, the area ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel is (1+√2):(1+√2):4, and the square area of ​​the light-transmitting region is one-quarter of the square area of ​​the third sub-pixel; the octagon formed by splicing two first sub-pixels and two second sub-pixels includes four short sides and four long sides, wherein the length of the short side is the side length of either the first or second sub-pixel, and the length of the long side is twice the side length of either the first or second sub-pixel.

[0013] Preferably, the pixel unit includes a first pixel unit and a second pixel unit arranged adjacent to each other. In the first pixel unit, the length direction of two first sub-pixels extends along the column direction, and the length direction of two second sub-pixels extends along the row direction; similarly, in the second pixel unit, the length direction of two first sub-pixels extends along the row direction, and the length direction of two second sub-pixels extends along the column direction. This arrangement ensures that the first and second sub-pixels in the adjacent first and second pixel units are adjacent to each other, allowing for a larger number of sub-pixels to be arranged within a given layout area, thus improving the pixel density and resolution of the pixel structure.

[0014] Preferably, the first pixel unit and the second pixel unit are arranged alternately along both the row and column directions.

[0015] Preferably, the first sub-pixel displays red, the second sub-pixel displays green, and the third sub-pixel displays blue.

[0016] The technical solution adopted by this utility model to solve the second technical problem mentioned above is as follows: a display panel, including a substrate; an anode layer disposed on the substrate; an organic layer disposed on the anode layer; a cathode layer disposed on the organic layer; an insulating layer disposed at the end of the organic layer to separate the anode layer from the cathode layer; a refractive film layer disposed on the cathode layer; an encapsulation layer disposed on the refractive film layer; and further including a pixel definition layer passing through the organic layer and disposed between the anode layer and the cathode layer, wherein the pixel definition layer applies the above-mentioned pixel arrangement structure.

[0017] Compared with the prior art, the advantages of this utility model are as follows: a third sub-pixel is surrounded by four first sub-pixels and four second sub-pixels, and each sub-pixel is shared at least once. Under the condition of the same sub-pixel, compared with the pixel arrangement of the display panel in the prior art, the sharing of pixels can enable more pixel display units on the basis of a fixed number of sub-pixels, thereby improving the resolution of the display panel; and the first sub-pixel, second sub-pixel and third sub-pixel are arranged alternately, which reduces the opening density of the metal mask while ensuring color reproduction capability, thereby reducing the manufacturing difficulty of the metal mask. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first pixel unit in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the second pixel unit in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the pixel arrangement structure in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the first sub-pixel mask.

[0022] Figure 5 This is a schematic diagram of the structure of the second sub-pixel mask.

[0023] Figure 6 A schematic diagram of the structure of the third sub-pixel mask;

[0024] Figure 7 This is a schematic diagram of the display panel structure in an embodiment of the present invention. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1-7 The image shown is a preferred embodiment of the pixel arrangement structure of this utility model, which includes a first pixel unit and a second pixel unit arranged in an array.

[0027] like Figure 1 As shown, the first pixel unit includes two first sub-pixels 11, two second sub-pixels 12, and one third sub-pixel 13. The first sub-pixels 11 and 12 are both equilateral hexagons, with two opposite angles of 90 degrees. The third sub-pixel 13 is a square. The two first sub-pixels 11 are arranged parallel to each other along the column direction, and the two second sub-pixels 12 are arranged parallel to each other along the row direction. The first sub-pixels 11 and 12 are joined end-to-end, forming an octagon. The center of this octagon is the light-transmitting area TA. This octagon has four long sides and four short sides, where the length of the short sides is the same as the side length of either the first sub-pixel 11 or the second sub-pixel 12, and the length of the long sides is twice the side length of either the first sub-pixel 11 or the second sub-pixel 12. The side length of the square of the third sub-pixel 13 coincides with the long side of the octagon, which means that the side length of the square of the third sub-pixel 13 is twice the side length of the equilateral hexagon of the first sub-pixel 11 or the second sub-pixel 12.

[0028] like Figure 2 As shown, the structure of the second pixel unit is similar to that of the first pixel unit. The only difference is that the two first sub-pixels 11 are arranged parallel to each other along the row direction, and the two second sub-pixels 12 are arranged parallel to each other along the column direction. When the first and second pixel units are arranged alternately along both the row and column directions, the third sub-pixel 13 exactly fills the gap between the first sub-pixels 11 and the second sub-pixels 12 in the adjacent pixel units. In the first and second pixel units, the first sub-pixel 11 displays red, the second sub-pixel 12 displays green, and the third sub-pixel 13 displays blue.

[0029] like Figure 3 As shown, the first pixel unit and the second pixel unit are arranged alternately along both the row and column directions. This scheme ensures that different sub-pixels in adjacent first and second pixel units are adjacent to each other, allowing for a larger number of sub-pixels to be arranged within a given layout area, thus improving the pixel density and resolution of the pixel structure.

[0030] The two ends of the hexagons of the first sub-pixel 11 and the second sub-pixel 12 are both 90-degree angles. The 90-degree angles in the first sub-pixel 11 and the 90-degree angles in the second sub-pixel 12 combine to form a 180-degree angle, thus forming an octagon. The side length of the square of the third sub-pixel 13 is twice the side length of the hexagon that forms the 90-degree angle. The hypotenuse of the third sub-pixel 13 is adjacent to both the first sub-pixels 11 and the second sub-pixels 12 that are joined together. This helps to increase the density of the sub-pixel arrangement in the pixel structure, enabling a larger number of sub-pixels to be arranged within a certain layout area, thereby improving the pixel density and resolution of the pixel structure.

[0031] In a specific embodiment, the area ratio of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 can be adjusted by changing the side length ratio of the hexagons in the first sub-pixel 11 and the second sub-pixel 12. In this embodiment, the side length forming a 90-degree angle in the hexagon is 1, and the side length away from the 90-degree angle is also 1. Therefore, the area ratio of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 is 1 + √2:1 + √2:4. By adjusting the area and considering the decay rate of different color pixel materials, the overall decay rate of the display module / display device tends to be consistent, which can effectively reduce color shift caused by inconsistent RGB efficiency lifespan and help extend the life of the display panel.

[0032] Since both the first sub-pixel 11 and the second sub-pixel 12 are equilateral hexagons, the square area of ​​the light-transmitting area TA is one-quarter of the square area of ​​the third sub-pixel 13.

[0033] like Figure 7 As shown, this utility model also discloses a display panel, including a substrate 1; an anode layer 2 disposed on the substrate 1; an organic layer 3 disposed on the anode layer 2; a cathode layer 5 disposed on the organic layer 3; an insulating layer 8 disposed at the end of the organic layer 3 to separate the anode layer 2 from the cathode layer 5; a refractive film layer 6 disposed on the cathode layer 5; an encapsulation layer 7 disposed on the refractive film layer 6; and a pixel definition layer 4 passing through the organic layer 3 and disposed between the anode layer 2 and the cathode layer 5, wherein the pixel definition layer 4 applies the above-mentioned pixel arrangement structure.

[0034] Compared with the prior art, the advantages of this utility model are as follows: A third sub-pixel 13 is surrounded by four first sub-pixels 11 and four second sub-pixels 12. Each sub-pixel is shared at least once. Given the same sub-pixels, compared with the pixel arrangement of the display panel in the prior art, pixel sharing allows for a greater number of pixel display units with a fixed number of sub-pixels, thereby improving the resolution of the display panel. Furthermore, the first sub-pixels 11, second sub-pixels 12, and third sub-pixels 13 are arranged alternately, reducing the opening density of the metal mask while ensuring color reproduction capability, thus reducing the manufacturing difficulty of the metal mask (see...). Figures 4-6 ).

Claims

1. A pixel arrangement structure, characterized by, The system includes an array of pixel units, each pixel unit comprising two first sub-pixels (11), two second sub-pixels (12), and a third sub-pixel (13). The length direction of the two first sub-pixels (11) extends along a first direction, and the length direction of the two second sub-pixels (12) extends along a second direction intersecting the first direction. The first sub-pixels (11) and the second sub-pixels (12) are sequentially spaced and interposed at their center to form a light-transmitting area (TA). The third sub-pixel (13) is located outside the junction of one of the first sub-pixels (11) and the second sub-pixel (12).

2. The pixel arrangement structure of claim 1, wherein: Both the first sub-pixel (11) and the second sub-pixel (12) are hexagons, and the hexagons have an axis of symmetry perpendicular to their own length direction. The edges of adjacent first sub-pixels (11) and second sub-pixels (12) that are joined together coincide and are of equal length.

3. The pixel arrangement of claim 2, wherein: The first sub-pixel (11) has the same shape as the second sub-pixel (12).

4. The pixel arrangement of claim 3, wherein: The first sub-pixel (11) and the second sub-pixel (12) each have a 90-degree angle between their hexagons; the third sub-pixel (13) is a square, and the side length of the square is twice the side length of the hexagon that forms the 90-degree angle.

5. The pixel arrangement of claim 4, wherein: The area ratio of the first sub-pixel (11), the second sub-pixel (12), and the third sub-pixel (13) is 1:1:(1~2).

6. The pixel arrangement of any of claims 1-5, wherein: Both the first sub-pixel (11) and the second sub-pixel (12) are equilateral hexagons.

7. The pixel arrangement of any of claims 1-5, wherein: The pixel unit includes a first pixel unit and a second pixel unit disposed adjacent to each other, wherein... The length direction of the two first sub-pixels (11) in the first pixel unit extends along the column direction, and the length direction of the two second sub-pixels (12) extends along the row direction; The length direction of the two first sub-pixels (11) in the second pixel unit extends along the row direction, and the length direction of the two second sub-pixels (12) extends along the column direction.

8. The pixel arrangement of claim 7, wherein: The first pixel unit and the second pixel unit are arranged alternately along both the row and column directions.

9. The pixel arrangement of claim 8, wherein: The first sub-pixel (11) displays red, the second sub-pixel (12) displays green, and the third sub-pixel (13) displays blue.

10. A display panel, comprising Substrate (1); An anode layer (2) is disposed on the substrate (1); An organic layer (3) is disposed on the anode layer (2); A cathode layer (5) is disposed on the organic layer (3); An insulating layer (8) is provided at the end of the organic layer (3) to separate the anode layer (2) from the cathode layer (5); A refractive film layer (6) is disposed on the cathode layer (5); An encapsulation layer (7) is disposed on the refractive film layer (6); The feature is that it further includes a pixel definition layer (4) that passes through the organic layer (3) and is disposed between the anode layer (2) and the cathode layer (5), wherein the pixel definition layer (4) is applied with the pixel arrangement structure of any one of claims 1 to 9.

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