CN108807475B

CN108807475B - Pixel arrangement structure and OLED display panel

Info

Publication number: CN108807475B
Application number: CN201810571887.8A
Authority: CN
Inventors: 李金库; 黄秀颀
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2018-05-31
Filing date: 2018-05-31
Publication date: 2020-09-25
Anticipated expiration: 2038-05-31
Also published as: CN108807475A

Abstract

The invention provides a pixel arrangement structure and an OLED display panel, wherein the pixel arrangement structure comprises a plurality of repeating units, each repeating unit comprises three first sub-pixels, three second sub-pixels and two third sub-pixels to form two adjacent unit columns, the first unit column comprises the first sub-pixels, the second sub-pixels, the first sub-pixels and the third sub-pixels which are sequentially arranged, and the second unit column comprises the third sub-pixels, the second sub-pixels, the first sub-pixels and the second sub-pixels which are sequentially arranged, so that a novel pixel arrangement structure is provided to meet the increasingly changed product requirements.

Description

Pixel arrangement structure and OLED display panel

Technical Field

The invention relates to the technical field of display, in particular to a pixel arrangement structure and an OLED display panel.

Background

The Organic Light-Emitting Display panel (abbreviated as OLED Display panel) has the advantages of active Light emission, lightness, thinness, large viewing angle, fast response speed, energy saving, large temperature tolerance range, flexible Display, transparent Display and the like, and is considered as a next-generation novel flat panel Display technology with the most potential.

Among full-color methods of OLED display panels, a Color Filter (CF) method and Red, Green, and Blue (Red, Green, and Blue, RGB) pixel methods are two methods developed at present.

The color filter method in the field of OLED display panels is similar to the color filter method in full-color display in the field of liquid crystal panels, namely, a white organic light emitting diode is used as a backlight plate to play a role of the backlight plate and liquid crystal molecules in the liquid crystal panel, and the light filter is additionally arranged on the white organic light emitting diode to realize red, green and blue sub-pixels, so that the problems of resolution and large-area preparation can be well solved. However, the power consumption of the display panel is increased due to the large energy loss of the light after passing through the color filter.

In order to effectively reduce the power consumption of the display panel, the RGB pixel method is generally adopted. The RGB Pixel method commonly used in the prior art includes a plurality of Pixel units (pixels), each Pixel unit includes a red sub-Pixel (R), a green sub-Pixel (G), and a blue sub-Pixel (B) sequentially arranged in a horizontal direction, and all the sub-pixels on the OLED display panel are arranged in an array. Specifically, each sub-pixel includes a cathode, an anode, and an electroluminescent layer (organic emission layer) between the cathode and the anode for generating light of a predetermined color to realize display. The electroluminescent layer is generally formed on the OLED display panel by evaporation. In the preparation of the display panel in the prior art, three times of evaporation processes are usually required to form electroluminescent layers of corresponding colors (red, green or blue) in the sub-pixels of corresponding colors, respectively.

As technology develops, the conventional RGB pixel arrangement cannot meet the product requirements, and more RGB pixel arrangements are required to be provided to meet different product requirements.

Disclosure of Invention

The invention aims to provide a pixel arrangement structure and an OLED display panel, wherein the pixel arrangement structure comprises a plurality of repeating units, each repeating unit comprises three first sub-pixels, three second sub-pixels and two third sub-pixels so as to form two adjacent unit columns, the first unit column comprises the first sub-pixels, the second sub-pixels, the first sub-pixels and the third sub-pixels which are sequentially arranged, and the second unit column comprises the third sub-pixels, the second sub-pixels, the first sub-pixels and the second sub-pixels which are sequentially arranged.

Optionally, in the pixel arrangement structure, an opening area of the third sub-pixel is larger than an opening area of the first sub-pixel or an opening area of the second sub-pixel.

Optionally, in the pixel arrangement structure, an opening area of the third sub-pixel is 1.5 times to 2.5 times an opening area of the first sub-pixel, and an opening area of the third sub-pixel is 1.5 times to 2.5 times an opening area of the second sub-pixel.

Optionally, in the pixel arrangement structure, the openings of the first sub-pixel, the second sub-pixel and the third sub-pixel are square; or the opening shapes of the first sub-pixel and the second sub-pixel are both regular hexagons, and the opening shape of the third sub-pixel is two communicated regular hexagons.

Optionally, in the pixel arrangement structure, in the repeating unit, the first unit column and the second unit column are arranged in a staggered manner.

Optionally, in the pixel arrangement structure, in the repeating unit, a misalignment amount between a first unit column and a second unit column is smaller than that of one first sub-pixel.

Optionally, in the pixel arrangement structure, a plurality of repeating units are arranged in an array to form a pixel array, wherein the first sub-pixel, the second sub-pixel and the third sub-pixel can be shared.

Optionally, in the pixel arrangement structure, the number of times that the first sub-pixel, the second sub-pixel, and the third sub-pixel located at the edge position of the pixel array are shared is respectively less than the number of times that the first sub-pixel, the second sub-pixel, and the third sub-pixel located at the non-edge position of the pixel array are shared.

Optionally, in the pixel arrangement structure, the third sub-pixel is a blue sub-pixel.

The invention also provides an OLED display panel comprising a pixel arrangement as described above.

In the pixel arrangement structure and the OLED display panel provided by the present invention, the pixel arrangement structure includes a plurality of repeating units, each of the repeating units includes three first sub-pixels, three second sub-pixels, and two third sub-pixels to form two adjacent unit columns, wherein a first unit column includes the first sub-pixel, the second sub-pixel, the first sub-pixel, and the third sub-pixel, which are sequentially arranged, and a second unit column includes the third sub-pixel, the second sub-pixel, the first sub-pixel, and the second sub-pixel, which are sequentially arranged, so as to provide a new pixel arrangement structure to meet the increasingly changing product requirements.

Further, in the pixel arrangement structure and the OLED display panel provided in the present invention, the aperture area of the third sub-pixel is larger than the aperture area of the first sub-pixel and the aperture area of the second sub-pixel, and preferably, the third sub-pixel is a blue sub-pixel, so that the usage rate of the third sub-pixel can be reduced, thereby improving the lifetime of the third sub-pixel.

Furthermore, in the pixel arrangement structure and the OLED display panel provided in the present invention, the first sub-pixel, the second sub-pixel, and the third sub-pixel can be shared, so that the resolution of the OLED display panel formed thereby is improved.

Drawings

Fig. 1 is a partial schematic view of a pixel arrangement structure according to a first embodiment of the invention;

fig. 2 is a partial schematic view of a pixel arrangement structure according to a second embodiment of the invention;

wherein the content of the first and second substances,

100-pixel arrangement; 110-a repeat unit; 111-a first sub-pixel; 112-a second sub-pixel; 113-a third sub-pixel; 114-column of cells; 120-pixel cells; 120 a-pixel cell; 120 b-pixel cells; 120 c-pixel cell; 120 d-pixel cell; 120 e-pixel cell; 120 f-pixel cell;

200-pixel arrangement; 210-repeat units; 211-a first sub-pixel; 212-a second sub-pixel; 213-third sub-pixel; 214-column of cells.

Detailed Description

The pixel arrangement structure and the OLED display panel according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

[ EXAMPLES one ]

Please refer to fig. 1, which is a partial schematic view of a pixel arrangement structure according to a first embodiment of the present invention. As shown in fig. 1, in the embodiment of the present application, the pixel arrangement structure 100 includes a plurality of repeating units 110, and each repeating unit 110 includes three first sub-pixels 111, three second sub-pixels 112, and two third sub-pixels 113 to form two adjacent unit columns 114, where a first unit column 114 includes the first sub-pixel 111, the second sub-pixel 112, the first sub-pixel 111, and the third sub-pixel 113 arranged in sequence, and a second unit column 114 includes the third sub-pixel 113, the second sub-pixel 112, the first sub-pixel 111, and the second sub-pixel 112 arranged in sequence.

Preferably, the opening area of the third sub-pixel 113 is larger than the opening area of the first sub-pixel 111 or the opening area of the second sub-pixel 112. The first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 are sub-pixels with different colors, preferably from a green sub-pixel, a red sub-pixel, and a blue sub-pixel. For example, the first sub-pixel 111 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the third sub-pixel 113 may be a blue sub-pixel. In the embodiment of the present application, the first sub-pixel 111 is a green sub-pixel, the second sub-pixel 112 is a red sub-pixel, and the third sub-pixel 113 is a blue sub-pixel. Thus, the usage rate of the third sub-pixel 113 (i.e., the blue sub-pixel) may be reduced, thereby increasing the lifetime of the third sub-pixel 113 (i.e., the blue sub-pixel).

Preferably, the opening area of the third sub-pixel 113 is 1.5 times to 2.5 times the opening area of the first sub-pixel 111, and the opening area of the third sub-pixel 113 is 1.5 times to 2.5 times the opening area of the second sub-pixel 112. The opening area of the first sub-pixel 111 may be the same as the opening area of the second sub-pixel 112, and the opening area of the first sub-pixel 111 may also be different from the opening area of the second sub-pixel 112. The opening area of the third subpixel 113 may be 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times, 2 times, 2.2 times, 2.5 times, or the like of the opening area of the first subpixel 111; the opening area of the third subpixel 113 may be 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times, 2 times, 2.2 times, 2.5 times, or the like of the opening area of the second subpixel 112.

In the embodiment of the present application, the opening area of the first sub-pixel 111 is the same as the opening area of the second sub-pixel 112. The opening area of the third sub-pixel 113 is 2 times the opening area of the first sub-pixel 111, and the opening area of the third sub-pixel 113 is also 2 times the opening area of the second sub-pixel 112.

With reference to fig. 1, in the embodiment of the present application, the openings of the first sub-pixel 111 and the second sub-pixel 112 are both regular hexagons, and the opening of the third sub-pixel 113 is two connected regular hexagons. Here, the opening shape of the third subpixel 113 is a decagon having equal sides, and the decagon can be divided into two regular hexagons.

Further, in the repeating unit 110, the first unit column 114 and the second unit column 114 are arranged in a staggered manner, so that the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 can be better attached to each other, and thus the efficiency of the whole pixel arrangement structure is improved and the resolution of the formed OLED display panel is improved.

Preferably, in the repeating unit 110, the offset between the first unit column 114 and the second unit column 114 is smaller than one first sub-pixel 111, and in this case, smaller than one second sub-pixel 112. In the embodiment of the present application, a first one of the unit columns 114 is offset from a second one of the unit columns 114 by half of the first sub-pixel 111, that is, the first one of the unit columns 114 is offset from the second one of the unit columns 114 by half of the second sub-pixel 112. Along the direction of the unit column, at one end, the first unit column 114 protrudes from the second unit column 114 by half of the first sub-pixel 111, and at the other end, the second unit column 114 protrudes from the first unit column 114 by half of the second sub-pixel 112.

With reference to fig. 1, the pixel arrangement structure 100 includes a plurality of repeating units 110, the repeating units 110 are arranged in an array to form a pixel array, wherein the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 can be shared.

As shown in fig. 1, in the embodiment of the present disclosure, each pixel unit 120 includes one of the first sub-pixel 111, one of the second sub-pixels 112, and one of the third sub-pixels 113, wherein two adjacent pixel units 120 share one or two of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113.

With continued reference to fig. 1, the pixel unit 120a and the pixel unit 120b share one of the third sub-pixels 113; the pixel unit 120b and the pixel unit 120c share one of the first sub-pixels 111 and one of the second sub-pixels 112; the pixel unit 120a and the pixel unit 120d share one of the second sub-pixels 112 and one of the third sub-pixels 113; the pixel unit 120d and the pixel unit 120e share one of the third sub-pixels 113; the pixel unit 120b and the pixel unit 120e share one of the second sub-pixels 112 and one of the third sub-pixels 113; the pixel unit 120e and the pixel unit 120f share one of the first sub-pixels 111 and one of the second sub-pixels 112; the pixel unit 120c and the pixel unit 120f share one of the second sub-pixels 112 and one of the third sub-pixels 113.

In the pixel arrangement structure 100, the adjacent first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 may be combined differently according to different design requirements to obtain different pixel units 120, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the number of times that the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 located at the edge position of the pixel array are shared is respectively less than the number of times that the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 located at the non-edge position of the pixel array are shared. Wherein, the edge position sub-pixel of the pixel array refers to two outermost sub-pixels in each row or each column of the pixel array, and the non-edge position sub-pixel of the pixel array refers to the sub-pixels except the sub-pixels at the edge position.

The first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 at the edge of the pixel array are shared once or twice, and the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 at the non-edge of the pixel array are shared four times.

Correspondingly, the present embodiment further provides an OLED display panel, where the OLED display panel includes the pixel arrangement structure 100, the pixel arrangement structure 100 includes a plurality of repeating units 110, and each repeating unit 110 includes three first sub-pixels 111, three second sub-pixels 112, and two third sub-pixels 113 to form two adjacent unit columns 114, where a first one of the unit columns 114 includes the first sub-pixel 111, the second sub-pixel 112, the first sub-pixel 111, and the third sub-pixel 113, which are sequentially arranged, and a second one of the unit columns 114 includes the third sub-pixel 113, the second sub-pixel 112, the first sub-pixel 111, and the second sub-pixel 112, which are sequentially arranged. Specifically, each sub-pixel includes a cathode, an anode, and an electroluminescent layer (organic emission layer) between the cathode and the anode for generating light of a predetermined color to realize display. In the OLED display panel, the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 can be shared, thereby improving the resolution of the OLED display panel formed thereby.

[ example two ]

Please refer to fig. 2, which is a partial schematic view of a pixel arrangement structure according to a second embodiment of the present invention. As shown in fig. 2, in the embodiment of the present application, the pixel arrangement structure 200 includes a plurality of repeating units 210, and each repeating unit 210 includes three first sub-pixels 211, three second sub-pixels 212, and two third sub-pixels 213 to form two adjacent unit columns 214, where a first unit column 214 includes the first sub-pixel 211, the second sub-pixel 212, the first sub-pixel 211, and the third sub-pixel 213, which are sequentially arranged, and a second unit column 214 includes the third sub-pixel 213, the second sub-pixel 212, the first sub-pixel 211, and the second sub-pixel 212, which are sequentially arranged.

The difference between the second embodiment and the first embodiment is that, as shown in fig. 2, in the embodiment of the present application, the openings of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 are all square. Further, the first sub-pixel 111 and the second sub-pixel 112 have square openings, and the third sub-pixel 113 has a rectangular opening. Preferably, the short side of the rectangular third sub-pixel 113 is the same as the side length of the square first sub-pixel 111 or the square second sub-pixel 112, and the long side of the rectangular third sub-pixel 113 is 2 times the side length of the square first sub-pixel 111 or the square second sub-pixel 112.

The parts not described in the second embodiment can refer to the first embodiment, and the second embodiment is not described again.

In summary, in the pixel arrangement structure and the OLED display panel provided in the present invention, the pixel arrangement structure includes a plurality of repeating units, each of the repeating units includes three first sub-pixels, three second sub-pixels, and two third sub-pixels to form two adjacent unit columns, where a first unit column includes the first sub-pixel, the second sub-pixel, the first sub-pixel, and the third sub-pixel, which are sequentially arranged, and a second unit column includes the third sub-pixel, the second sub-pixel, the first sub-pixel, and the second sub-pixel, which are sequentially arranged, so as to provide a new pixel arrangement structure to meet the increasingly changing product requirements.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims

1. A pixel arrangement structure is characterized by comprising a plurality of repeating units, wherein each repeating unit comprises three first sub-pixels, three second sub-pixels and two third sub-pixels to form two adjacent unit columns, the first unit column comprises the first sub-pixels, the second sub-pixels, the first sub-pixels and the third sub-pixels which are sequentially arranged, the second unit column comprises the third sub-pixels, the second sub-pixels, the first sub-pixels and the second sub-pixels which are sequentially arranged, the opening area of the third sub-pixels is larger than that of the first sub-pixels or that of the second sub-pixels, and the first unit column and the second unit column are arranged in a staggered mode.

2. The pixel arrangement according to claim 1, wherein the opening area of the third sub-pixel is 1.5 times to 2.5 times the opening area of the first sub-pixel, and the opening area of the third sub-pixel is 1.5 times to 2.5 times the opening area of the second sub-pixel.

3. The pixel arrangement according to claim 1, wherein the opening shapes of the first sub-pixel, the second sub-pixel, and the third sub-pixel are each square; or the opening shapes of the first sub-pixel and the second sub-pixel are both regular hexagons, and the opening shape of the third sub-pixel is two communicated regular hexagons.

4. The pixel arrangement according to claim 1, wherein in the repeating unit, an amount of misalignment of a first one of the unit columns from a second one of the unit columns is smaller than one of the first sub-pixels.

5. The pixel arrangement structure according to any one of claims 1 to 4, wherein a plurality of repeating units are arranged in an array to form a pixel array, wherein the first sub-pixel, the second sub-pixel and the third sub-pixel can be shared.

6. The pixel arrangement according to claim 5, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel located at the edge position of the pixel array are shared less times than the first sub-pixel, the second sub-pixel, and the third sub-pixel located at the non-edge position of the pixel array, respectively.

7. A pixel arrangement according to any one of claims 1 to 4, wherein the third sub-pixel is a blue sub-pixel.

8. An OLED display panel, comprising the pixel arrangement structure of any one of claims 1 to 7.