CN111883560B

CN111883560B - Pixel arrangement structure and display panel comprising same

Info

Publication number: CN111883560B
Application number: CN201910807879.3A
Authority: CN
Inventors: 陈亚文; 史文; 宋晶尧; 付东
Original assignee: Guangdong Juhua Printing Display Technology Co Ltd
Current assignee: Guangdong Juhua Printing Display Technology Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2022-02-15
Anticipated expiration: 2039-08-29
Also published as: CN111883560A; WO2021037217A1

Abstract

The invention relates to a pixel arrangement structure and a display panel comprising the same, wherein the pixel arrangement structure comprises a repeating unit, the repeating unit is hexagonal, the repeating unit comprises six pixel units arranged around the central point of the repeating unit, each pixel unit comprises three sub-pixels with different light-emitting colors, a light-transmitting area is arranged in each pixel unit, and the three sub-pixels of each pixel unit are arranged around the light-transmitting area; in the pixel arrangement structure, adjacent repeating units are arranged in an edge-to-edge mode, so that sub-pixels which are positioned at adjacent positions in each repeating unit and have the same light-emitting color are gathered together to form a light-emitting area in a regular shape. The above-described pixel arrangement structure contributes to realizing a high-resolution transparent display.

Description

Pixel arrangement structure and display panel comprising same

Technical Field

The present invention relates to the field of electronic display technologies, and in particular, to a pixel arrangement structure and a display panel including the same.

Background

The transparent display is a brand-new display technology, an observer can see the background behind the display screen through the display screen, the display technology expands the application field of the traditional display technology, and the display technology can be used in the fields of mobile phones, computers, refrigerators, displays, billboards and the like.

Organic Light Emitting Diodes (OLEDs) and quantum dot light emitting diodes (QLEDs) are currently an important direction for development of transparent display panels due to their thin and light characteristics. The OLED and QLED display panels are usually manufactured by adopting a solution processing method, and the method has the advantages of low cost, high productivity, easy realization of large size and the like, and is an important direction for the development of future display technologies. In particular, printing technology is considered to be the most effective way to achieve low cost and large area full color displays for OLEDs as well as QLEDs.

However, in the field of printing technology, in order to improve the light transmittance of the entire transparent display panel, a part of the light emitting region is often required to be sacrificed as a light transmitting region, which leads to a reduction in the ink deposition region and a reduction in the light emitting region, which further affects the resolution of the display panel.

Disclosure of Invention

Accordingly, it is desirable to provide a pixel arrangement structure capable of improving the resolution of a transparent display panel and a display panel including the same.

A pixel arrangement structure includes a plurality of repeating units; the repeating unit is hexagonal and comprises six pixel units arranged around the center point of the repeating unit, and each pixel unit comprises three sub-pixels with different light-emitting colors; a light-transmitting area is arranged in each pixel unit, and three sub-pixels of each pixel unit are arranged around the light-transmitting area;

in the pixel arrangement structure, adjacent repeating units are arranged in an edge-to-edge mode, so that sub-pixels which are positioned at adjacent positions in each repeating unit and have the same light-emitting color are gathered together to form a light-emitting area in a regular shape.

In one embodiment, the repeating units are regular hexagons.

In one embodiment, the pixel units are in the shape of an isosceles triangle, and one sub-pixel in each pixel unit is combined with each of the adjacent sub-pixels of the other five adjacent pixel units to form a light emitting region with the same light emitting color.

In one embodiment, the light emitting region is in the shape of a regular hexagon, and the areas and the shapes of the sub-pixels composing the same light emitting region are the same.

In one embodiment, the sub-pixels are triangular, and the sub-pixels with the same emission color have the same area, and the sub-pixels with different emission colors have the same or different areas.

In one embodiment, the total area of the light-transmitting region accounts for 25% -60% of the total area of the light-transmitting region and the light-emitting region.

In one embodiment, the shape of the light-transmitting region is a triangle, a quadrangle, a pentagon or a hexagon.

In one embodiment, the repeating unit is a regular hexagon, the repeating unit includes 6 pixel units with equal area and an equilateral triangle, and each pixel unit includes three sub-pixels with equal area and an equilateral triangle;

the shape of the light-transmitting area is an equilateral triangle; three sides of the equilateral triangle of the light-transmitting area are respectively a first side, a second side and a third side; the three sub-pixels arranged around the light-transmitting area are respectively a first sub-pixel, a second sub-pixel and a third sub-pixel; wherein the first edge is parallel to or overlaps with one edge of the first sub-pixel close to the light-transmitting area; the second edge is parallel to or overlapped with one edge of the second sub-pixel close to the light-transmitting area; the third side is parallel to or overlaps with one side of the third sub-pixel close to the light-transmitting area.

In one embodiment, the repeating unit is in a regular hexagon shape, the repeating unit comprises 6 pixel units with equal area and in an equilateral triangle shape, and each pixel unit comprises three sub-pixels in an isosceles triangle shape;

the light-transmitting area is hexagonal, and six sides of the hexagon are respectively a first side, a second side, a third side, a fourth side, a fifth side and a sixth side; the three sub-pixels arranged around the light-transmitting area are respectively a first sub-pixel, a second sub-pixel and a third sub-pixel; wherein the first edge is parallel to or coincides with one edge of the first sub-pixel close to the light-transmitting area; the second edge is in a straight line with one edge of the first sub-pixel and the second sub-pixel; the third side is parallel to or coincided with one side of the second sub-pixel close to the light-transmitting area; the fourth side is in a straight line with one side of the second sub-pixel and the third sub-pixel; the fifth edge is parallel to or coincided with one edge of the third sub-pixel close to the light-transmitting area; the sixth side is in line with one side of the first sub-pixel and the third sub-pixel.

A display panel comprises the pixel arrangement structure.

The pixel arrangement structure ensures that the light transmittance of the display panel is ensured by arranging the repeating unit comprising 6 pixel units, arranging the pixel units around the central point of the repeating unit and arranging three sub-pixels in the pixel units around the light-transmitting area. And adjacent repeating units in the pixel arrangement structure are arranged in a side-to-side mode, and sub-pixels with the same luminous color are gathered together to form a luminous zone in a regular shape, so that a plurality of sub-pixels in the same luminous zone can be printed together, the deposition area of ink can be multiplied, the size of each sub-pixel can be effectively reduced, and the ink can not overflow due to the fact that the area of a pixel unit is too small, so that high-resolution display is realized under the same equipment precision. In addition, the size of each sub-pixel in the pixel arrangement structure can be greatly reduced, so that a sufficient light-transmitting area can be reserved, and high-resolution transparent display is realized.

Drawings

Fig. 1 a is a schematic diagram of a pixel arrangement structure according to an embodiment; b is a partial enlarged view of the repeating unit in a, and c is an enlarged view of the pixel unit in a;

fig. 2a is a schematic diagram of a pixel arrangement structure according to an embodiment; b is a partial enlarged view of the repeating unit in a, and c is an enlarged view of the pixel unit in a;

fig. 3 a is a schematic diagram of a pixel arrangement structure according to an embodiment; b is a partial enlarged view of the repeating unit in a, and c is an enlarged view of the pixel unit in a;

fig. 4 is a schematic structural diagram of a display panel according to an embodiment.

Detailed Description

In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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.

In the present invention, the terms "parallel", "straight", "center point", "symmetrical", etc. are not strictly defined, and it is understood that there may be errors within an acceptable range in the art due to differences in the manufacturing process, etc.

As shown in fig. 1 to 3, the pixel arrangement structure 10 according to an embodiment of the present invention includes a plurality of repeating units 100, and the repeating units 100 are hexagonal, preferably regular hexagonal. Wherein, the repeating unit 100 includes 6 pixel units 200 arranged around a central point, each pixel unit 200 includes three sub-pixels 300 having different light emitting colors from each other; a light-transmitting region 30 is further disposed in the pixel unit, and three sub-pixels 300 are disposed around the light-transmitting region 30.

In the present invention, the number of the repeating units 100 is not particularly limited, and may be any integer greater than 2, and in the present invention, the adjacent repeating units 100 are arranged in a side-to-side manner, and it is understood that the "side-to-side" manner means that the adjacent two sides are opposite to each other, and preferably, the two sides are parallel or overlapped with each other, so that the sub-pixels 300 which are located at adjacent positions in each repeating unit 100 and have the same light emitting color are gathered together to form the light emitting region 20 with a regular shape. The light emitting region 20 is a region capable of emitting light of a specific color, and the light transmitting region 30 is a region capable of transmitting light, which has no light emitting unit and is capable of transmitting light, thereby ensuring light transmittance of the display panel.

As shown in b of fig. 1 to 3, the repeating unit 100 includes six pixel units 200, namely a first pixel unit 210, a second pixel unit 220, a third pixel unit 230, a fourth pixel unit 240, a fifth pixel unit 250 and six pixel units 260, wherein the first pixel unit 210 and the fourth pixel unit 240 are in central symmetry, the second pixel unit 220 and the fifth pixel unit 250 are in central symmetry, and the third pixel unit 230 and the sixth pixel unit 260 are in central symmetry. And the symmetry centers of the first and

fourth pixel units

210 and 240, the symmetry centers of the second and

fifth pixel units

220 and 250, and the symmetry centers of the third and

sixth pixel units

230 and 260 overlap.

The shape of each pixel unit 200 is not particularly limited, and preferably, the pixel units 200 are isosceles triangles, and more preferably, are equilateral triangles, and one sub-pixel in each pixel unit 200 and each of the adjacent sub-pixels of the other five adjacent pixel units are combined into a light emitting region 20 with the same light emitting color, so as to facilitate the arrangement of the pixel units, increase the number of pixel units in a unit area of the display panel, and further increase the resolution of the display panel.

As shown in fig. 1-3 c, each pixel unit 200 includes three sub-pixels 300 with different light emission colors, namely a first sub-pixel 310, a second sub-pixel 320 and a third sub-pixel 330. Each sub-pixel 300 is preferably shaped as an isosceles triangle, more preferably as an equilateral triangle. The area of the sub-pixels is not particularly limited and may be selected as needed, but it is preferable that the sub-pixels of the same emission color have the same area and the sub-pixels of different emission colors have the same or different areas.

It is understood that the sub-pixel 300 corresponds to a light emitting unit, and can emit light of different colors according to the kind of the light emitting unit, which can be a color combination of a common display unit, such as a red, blue, and green combination. In one embodiment, the first sub-pixel 310 is a red sub-pixel, the second sub-pixel 320 is a green sub-pixel, and the third sub-pixel 330 is a blue sub-pixel.

In the present invention, the light emitting regions 20 refer to regions capable of emitting light of a specific color, each light emitting region 20 is formed by combining adjacent sub-pixels 300 in adjacent pixel units 200, each sub-pixel 300 corresponds to one light emitting unit, and the light emitting colors of the sub-pixels 300 in the same light emitting region 20 are the same in the present invention.

The shape of the light emitting region 20 is related to the shape of the sub-pixel 300, and the light emitting region 20 may be a regular polygon, and preferably, the light emitting region 20 is a regular hexagon, so as to maximize the ink deposition area and increase the light emitting area without affecting the light transmission performance.

In one embodiment, the light emitting region 20 has a hexagonal shape and the sub-pixels 300 have a triangular shape. In one embodiment, the light emitting region 20 is a regular hexagon, and the sub-pixels 300 are isosceles triangles. Thus, an arrangement structure can be formed in which each light emitting region is surrounded by six light emitting regions having different light emitting colors from the light emitting region, and the light emitting colors of adjacent light emitting regions are different from each other.

The area of the light emitting region 20 is not particularly limited, and may be equal as shown in fig. 1 and 3, or may be different as shown in fig. 2, and specifically adjusted according to the stability of the panel, for example, the area of the blue light emitting region is appropriately enlarged to enhance the stability of the display panel. In addition, the sub-pixels 300 in the same light emitting region 20 have the same light emitting color, so that the area of the light emitting region can be relatively reduced without increasing the preparation difficulty, and enough light transmitting regions 30 are reserved, thereby realizing high-resolution transparent display.

The light-transmitting region 30 is a region capable of transmitting light, which has no light-emitting unit and is capable of transmitting light, thereby ensuring light transmittance of the display panel. In this embodiment, the three sub-pixels 300 are disposed around the light-transmitting area 30, and it can be understood that the shape of the light-transmitting area 30 is not particularly limited, and may be a triangle, a quadrangle, a pentagon or a hexagon, and preferably, the shape of the light-transmitting area is a triangle (as shown in fig. 1) or a hexagon (as shown in fig. 2 and fig. 3), so as to improve the area of the light-transmitting area while ensuring the resolution, and implement high-resolution transparent display.

Further, it is preferable that the total area of the light-transmitting regions accounts for 25% to 60% of the total area of the light-transmitting regions and the light-emitting regions, so that sufficient light-transmitting regions 30 are reserved while the area of the light-emitting region 20 is ensured, and high-resolution display is realized.

Furthermore, the following pixel arrangement structure is preferable to further reduce the manufacturing difficulty, improve the resolution of the display panel, and realize high-resolution transparent display.

As shown in fig. 1, the repeating unit 100 is a regular hexagon, the repeating unit 100 includes 6 pixel units 200 with equal area and in an equilateral triangle, and each pixel unit 200 includes three sub-pixels 300 with equal area and in an equilateral triangle. The shape of the light-transmitting area 30 is an equilateral triangle; three sides of the equilateral triangle of the light-transmitting region 30 are a first side a, a second side B, and a third side C, respectively; the three sub-pixels surrounding the light-transmitting region 30 are a first sub-pixel 310, a second sub-pixel 320 and a third sub-pixel 330, respectively; wherein, the first edge a is parallel to or overlapped with one edge of the first sub-pixel 310 close to the light-transmitting region 30; the second side B is parallel to or overlaps with a side of the second sub-pixel 320 close to the light-transmitting region 30; the third side C is parallel to or overlaps with a side of the third sub-pixel 330 near the light-transmitting region 30.

In one embodiment, as shown in fig. 2 and 3, the repeating unit 100 has a regular hexagon shape, the repeating unit 100 includes 6 pixel units 200 having equal area and an equilateral triangle shape, and each pixel unit 200 includes three sub-pixels having an isosceles triangle shape. The light-transmitting area 30 is hexagonal and is respectively a first side D, a second side E, a third side F, a fourth side G, a fifth side H and a sixth side I; the three sub-pixels surrounding the light-transmitting region 30 are a first sub-pixel 310, a second sub-pixel 320 and a third sub-pixel 330, respectively; wherein, the first edge D is parallel to or coincident with one edge of the first sub-pixel 310 close to the light-transmitting region 30; the second side E is aligned with one side of the first sub-pixel 310 and the second sub-pixel 320; the third side F is parallel to or coincides with a side of the second sub-pixel 320 close to the light-transmitting region 30; the fourth side G is aligned with one side of the second sub-pixel 320 and the third sub-pixel 330; the fifth side H is parallel to or coincident with a side of the third sub-pixel 330 close to the light-transmitting region 30; the sixth side I is aligned with one side of the first subpixel 310 and the third subpixel 330.

The pixel arrangement structure 10 is formed by arranging the pixel unit 200 around the center point of the repeating unit 100 through the repeating unit 100 including 6 pixel units, and arranging three sub-pixels 300 in the pixel unit 200 to form the light-transmitting region 30, so as to ensure the light-transmitting property of the display panel. In addition, the adjacent repeating units in the pixel arrangement structure 10 are arranged in a side-to-side manner, and the sub-pixels with the same light-emitting color are gathered together to form the light-emitting region 20 with a regular shape, so that the sub-pixels 300 with the same light-emitting color form the same light-emitting region, and therefore, a plurality of sub-pixels 300 in the same light-emitting region can be printed together, the deposition area of ink can be increased by times, the size of each sub-pixel 300 can be effectively reduced, and meanwhile, the ink can not overflow due to the over-small area of the pixel unit 200, so that high-resolution display can be realized under the same device precision. In addition, since the size of each sub-pixel 300 in the pixel arrangement structure 10 can be greatly reduced, a sufficient light-transmitting region 30 can be reserved, and high-resolution transparent display can be realized.

As shown in fig. 4, the display panel according to an embodiment of the present invention includes the pixel arrangement structure. The structure and other features of the pixel arrangement structure are the same as those described above, and are not described herein again. The display panel can be a computer display screen, a mobile phone screen, a billboard, a game screen and the like.

It is understood that the display panel may further include a substrate 3000, a pixel electrode 2111, a pixel defining layer 2112, a transparent electrode 2113, and the like. The sub-pixel 300 in each light emitting region 20 of the pixel arrangement structure is a light emitting unit, and includes at least one light emitting layer, and may further include other organic functional layers, where the organic functional layers include but are not limited to one or more of a hole injection layer, a hole transport layer, a light emitting layer, an electron injection layer, an electron transport layer, a hole blocking layer, and an electron blocking layer, and the light emitting layer may be an organic light emitting layer or a quantum dot light emitting layer according to the light emitting element.

A driving TFT3001 for driving a light emitting element may be further disposed on the substrate 3000, and the driving TFT3001 includes, but is not limited to, a polysilicon TFT and a metal oxide TFT. A planarization layer 2114 for planarizing a rugged surface caused by the driving circuit may be further formed between the substrate 3000 and the pixel defining layer 2112.

The substrate 3000 is a substrate commonly used in the art, such as a glass rigid substrate or a PI flexible substrate; the pixel electrode 2111 can be Al, Ag, Au or their alloys, or a stacked conductive reflective film such as ITO/Ag/ITO; the thickness of the pixel electrode is 40-200 nm.

The pixel defining layer 2112 is stacked on the substrate 3000, and defines each light emitting region 20 and the light transmitting region 30 corresponding to the above-described pixel arrangement structure. It is understood that the light emitting region 20 corresponds to a light emitting region of the pixel arrangement structure, and the light transmitting region 30 corresponds to a light transmitting region of the pixel arrangement structure. Specifically, the pixel defining layer 2112 forms a plurality of pixel pits on the substrate, each pixel pit corresponding to one sub-pixel in each light emitting region of the pixel arrangement structure, and the pixel pits for setting sub-pixels of different light emitting colors have a certain interval therebetween, the interval corresponding to the light transmitting region 30 in the pixel arrangement structure. The light emitting region 20 and the light transmitting region 30 having the above arrangement structure are formed by the arrangement of the pixel pits.

In addition, the pixel electrode 2111 is disposed on the light emitting region 20 of the substrate 3000, and a partial edge region of the pixel electrode 2111 is covered by the pixel defining layer 2112. The sub-pixel 300 of the pixel arrangement structure is disposed on the light emitting region 20 of the substrate 3000 and covers the pixel electrode 2111, the transparent electrode 2113 is disposed on the sub-pixel 300 of the pixel arrangement structure and the light transmitting region 30 of the substrate 3000, the pixel electrode 2111 can be Al, Ag, Au or their alloys, or a stacked conductive reflective film such as ITO/Ag/ITO, and the thickness of the pixel electrode can be 40-200 nm. It can be understood that the light-transmitting region 30 has no pixel electrode and no sub-pixel of the light-emitting function.

The pixel defining layer 2112 may have a single-layer structure or a multi-layer structure, and is not particularly limited herein. In one embodiment, the pixel defining layer 2112 includes a lyophilic pixel defining layer 2112a and a lyophobic pixel defining layer 2112b, and the lyophilic pixel defining layer 2112a is disposed near the substrate 3000. Pixel pits are formed on the lyophilic pixel defining layer 2112a and the lyophobic pixel defining layer 2112b, sub-pixels are located in the pixel pits, the bottom of the side wall of the pixel pit is the lyophilic pixel defining layer 2112a, and the top is the lyophobic pixel defining layer 2112b, so that the sub-pixel 300 is at least partially in contact with the lyophilic pixel defining layer 2112 a. The total thickness of the functional layers constituting the sub-pixel 300 is preferably greater than the thickness of the lyophilic pixel defining layer, so that the climbing height of the functional layers constituting the sub-pixel 300 before drying and film forming can be effectively controlled on the basis of not influencing the light emitting performance of the sub-pixel 300, and the uniformity of the film layer interface is ensured.

The lyophilic pixel defining layer 2112a may be made of a material such as silicon dioxide or silicon nitride which is attractive to a solution in which the organic electroluminescent material is dissolved, and the lyophobic pixel defining layer 2112b may be made of a material such as fluorinated polyimide, fluorinated polymethyl methacrylate, or polysiloxane which is repulsive to a solution in which the organic electroluminescent material is dissolved, and the material is not particularly limited. And the lyophilic pixel defining layer 2112a and the lyophobic pixel defining layer 2112b may be prepared by an evaporation process or the like.

In an embodiment, the pixel defining layer 2112 of the light emitting region 20 includes a first pixel bank having a first opening and a second pixel bank located in the first opening and dividing the first opening into two second openings, the first pixel bank has a thickness greater than that of the second pixel bank, the two pixel electrodes 2111 are respectively disposed corresponding to the two second openings, and the sub-pixel is disposed in the first opening and covers the two pixel electrodes. In another embodiment, the first pixel bank is formed by laminating a lyophilic pixel defining layer 2112a and a lyophobic pixel defining layer 2112b, the lyophilic pixel defining layer 2112a is close to the substrate, and the second pixel bank is formed by the lyophilic pixel defining layer 2112 a.

The transparent electrode 2113 may be a transparent conductive metal oxide, a conductive metal film, a conductive graphene film, or a conductive carbon nanotube film. In one embodiment, the transparent electrode 2113 is a conductive graphene film, and the thickness of the transparent electrode 2113 is 5nm to 30nm to ensure light transmittance. The transparent electrode 2113 may be prepared using an open mask (open mask) to simplify the process. The transparent electrode can also be prepared by adopting a fine mask, the transparent electrode does not cover the light transmission area, the process is relatively complex, and the light transmission area has higher light transmission.

It should be noted that each sub-pixel with different light-emitting colors may have a corresponding pixel electrode to drive the organic light-emitting units with different colors to emit light, but the light-transmitting area is not covered with the pixel electrode. In addition, the transparent region may also be covered with a transparent pixel defining layer, which only needs to ensure the light transmittance of the display panel, and is not particularly limited herein.

The method for manufacturing a display panel according to another embodiment of the present invention includes the steps of:

s101: a substrate is provided.

The driving circuit array can be manufactured on the substrate through a yellow light process.

S102: and manufacturing a patterned pixel electrode in each light-emitting area of the substrate.

A planarization layer may also be formed in the light emitting region of the substrate on which the pixel electrode is formed. The uneven surface caused by the driving circuit can be covered by forming the flat layer, and the formation of subsequent layers is facilitated. The planarization layer may be made of an organic material by an inkjet printing method, and is not particularly limited.

S103: a pixel defining layer is manufactured in a light emitting area of the substrate, and a plurality of pixel pits are defined to form a light emitting area and a light transmitting area corresponding to the pixel arrangement structure.

The pixel arrangement structure is the same as above, and is not described herein again.

In an embodiment, the pixel defining layer includes a first pixel bank and a second pixel bank, the first pixel bank has a first opening, the second pixel bank is located in the first opening and divides the first opening into two second openings, the thickness of the first pixel bank is greater than that of the second pixel bank, and the two pixel electrodes are respectively disposed corresponding to the two second openings. In another embodiment, the first pixel bank is formed by laminating a lyophilic pixel defining layer and a lyophobic pixel defining layer, the lyophilic pixel defining layer is close to the substrate, and the second pixel bank is formed by the lyophilic pixel defining layer.

S104: functional layers of sub-pixels are formed in pixel pits on the pixel defining layer.

That is, sub-pixels having the above-described pixel arrangement structure are formed in the respective emission regions on the pixel defining layer, and in particular, functional layers may be deposited using an inkjet printing method, and in one embodiment, the functional layers are stacked in the first pixel bank and cover the second pixel bank.

Because the colors of the sub-pixels forming the same luminous zone are the same in the pixel arrangement structure, the sub-pixels can be printed together, the deposition area of ink can be multiplied, the size of each sub-pixel can be effectively reduced, and meanwhile the ink can not overflow due to the fact that the area of the pixel is too small, so that high-resolution display is achieved under the same equipment precision.

S105: transparent electrodes are formed in the sub-pixels and the light-transmitting regions of the substrate.

The pen mask can be used for depositing the transparent electrode on the whole surface so as to simplify the preparation process.

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

1. A pixel arrangement structure is characterized by comprising a plurality of repeating units; the repeating unit is hexagonal and comprises six pixel units arranged around the center point of the repeating unit, and each pixel unit comprises three sub-pixels with different light-emitting colors; a light-transmitting area is arranged in the pixel unit, and the three sub-pixels of the pixel unit are arranged around the light-transmitting area;

2. The pixel arrangement structure according to claim 1, wherein the repeating unit has a regular hexagonal shape.

3. The pixel arrangement structure according to claim 1, wherein the pixel units are isosceles triangles, and one sub-pixel in each pixel unit is combined with each of the adjacent sub-pixels of the other five adjacent pixel units to form a light emitting region having the same light emitting color.

4. The pixel arrangement structure according to claim 3, wherein the light emitting region has a regular hexagonal shape, and the sub-pixels constituting the same light emitting region have the same area and shape.

5. The pixel arrangement structure according to claim 4, wherein the sub-pixels have a triangular shape, and the sub-pixels having the same emission color have the same area, and the sub-pixels having different emission colors have the same or different areas.

6. The pixel arrangement structure according to any one of claims 1 to 5, wherein a total area of the light-transmitting region accounts for 25% to 60% of a total area of the light-transmitting region and the light-emitting region.

7. The pixel arrangement structure according to claim 6, wherein the light-transmitting region has a triangular, quadrangular, pentagonal, or hexagonal shape.

8. The pixel arrangement structure according to claim 2, wherein the repeating unit comprises 6 equal-area equilateral-triangle pixel units, and each pixel unit comprises three equal-area equilateral-triangle sub-pixels;

9. The pixel arrangement structure according to claim 2, wherein the repeating unit comprises 6 equal-area equilateral triangle pixel units, each pixel unit comprising three isosceles triangle sub-pixels;

10. A display panel comprising the pixel arrangement structure according to any one of claims 1 to 9.