CN108510891B

CN108510891B - Pixel arrangement structure

Info

Publication number: CN108510891B
Application number: CN201710113892.XA
Authority: CN
Inventors: 刘将
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2017-02-28
Filing date: 2017-02-28
Publication date: 2020-03-10
Anticipated expiration: 2037-02-28
Also published as: CN108510891A

Abstract

The invention provides a pixel arrangement structure which comprises a plurality of pixel units which are repeatedly arranged, wherein each pixel unit comprises a first pixel, two second pixels and a third pixel which are close to each other, the first pixel, the second pixels and the third pixels are sequentially arranged, the distance between the two second pixels is smaller than the distance between the second pixels and the rest pixels, and the first pixels, the second pixels and the third pixels are different pixels. In the scheme, two second pixels can be closer to each other, the requirements of production and processing can be met, compared with the traditional mode, the number of the sub-pixels and the number of the pixel circuit units are reduced by 1/3, the pixel resolution can be improved, the design allowance of an OLED (organic light emitting diode) is guaranteed, the aperture opening ratio of the R/G/B sub-pixels is increased, the problem that the aperture opening ratio of the pixels cannot be improved in the prior art is solved, and the display effect is improved.

Description

Pixel arrangement structure

Technical Field

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

Background

The three primary colors display technology is the basis of the existing color image display technology, and a wide color range is obtained by superposing three colors, namely red (R), green (G) and blue (B), in different modes by adopting a three primary colors superposition color model. The RGB three-primary-color display technology has been applied to various display devices.

At present, high PPI (pixel density Per Inch) display has become the development direction of display technology, for AMOLED (Active-matrix organic light emitting diode, Active matrix organic light emitting diode or Active matrix organic light emitting diode) light emitting display, high density pixel arrangement improves array and evaporation process difficulty, and also limits PPI to be further improved, although the evaporation process difficulty can be reduced by carrying out merging and evaporation on adjacent same sub-Pixels, the limitation in array process cannot be effectively solved under the same process, and merging more sub-Pixels also brings poor vision in display.

In order to solve the above problems, it has been disclosed in the prior art to improve the pixels of the display panel by sharing the R or B sub-pixel with two laterally adjacent pixels, and the number of pixel circuit units is reduced by 1/3, thereby greatly reducing the difficulty of array design and process. However, the pixel sharing makes the distance between the pixels smaller, which results in a smaller aperture ratio between the pixels and affects the display effect. How to improve the pixels of the display screen and ensure the aperture opening ratio among the pixels becomes a problem to be solved urgently.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is the defect that the pixel resolution and the aperture ratio cannot be simultaneously improved in the prior art.

The invention provides a pixel arrangement structure which comprises a plurality of pixel units which are repeatedly arranged, wherein each pixel unit comprises a first pixel, two second pixels and a third pixel which are close to each other, the first pixel, the second pixels and the third pixels are sequentially arranged, the distance between the two second pixels is smaller than the distance between the second pixels and the rest pixels, and the first pixels, the second pixels and the third pixels are different pixels.

Preferably, a gap between the first pixel and the third pixel adjacent to each other in the same row corresponds to two second pixels of the pixel units adjacent to each other in the adjacent row.

Preferably, the gap between the first pixel and the third pixel adjacent to each other in the same row is larger than the sum of the width and the gap of the two second pixels in the corresponding adjacent rows.

Preferably, a gap between the first pixel and the second pixel adjacent to the first pixel in the same row corresponds to a third pixel of a pixel unit in an adjacent row.

Preferably, the gap between the first pixel and the second pixel adjacent to the first pixel in the same row is larger than the width of the third pixel in the corresponding adjacent row.

Preferably, a distance between two of the second pixels close to each other in the pixel unit is 5 μm to 10 μm.

Preferably, the distance between the first pixel and the second pixel adjacent to the first pixel in the pixel unit is 10 μm to 30 μm.

Preferably, the distance between the third pixel and the adjacent second pixel in the pixel unit is 10 μm to 30 μm.

Preferably, a sum of widths of two second pixels adjacent to each other in the pixel unit is equal to a width of the first pixel or the third pixel.

Preferably, the first pixel is a red sub-pixel, the second pixel is a green sub-pixel, and the third pixel is a blue sub-pixel.

The technical scheme of the invention has the following advantages:

the invention provides a pixel arrangement structure which comprises a plurality of pixel units which are repeatedly arranged, wherein each pixel unit comprises a first pixel, two second pixels and a third pixel which are close to each other, wherein the first pixel, the two second pixels and the third pixel are sequentially arranged, and the distance between the two second pixels is smaller than the distance between the second pixels and the rest pixels. In the scheme, the two second pixels can be closer to each other, the interval between the two second pixels is reduced, the production and processing requirements can be met, compared with the traditional mode, the number of the sub-pixels and the pixel circuit units is reduced by 1/3, the pixel resolution can be improved, and the display effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a structural diagram of a pixel arrangement structure according to an embodiment of the present invention.

Fig. 2 is a schematic distance diagram of a pixel arrangement structure according to an embodiment of the present invention.

Reference numerals:

1-pixel unit;

11-a first pixel; 12-a second pixel;

21-a second pixel; 22-a third pixel;

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

In this embodiment, a pixel arrangement structure is provided, which is a three-color pixel arrangement structure, and the first pixel, the second pixel and the third pixel are different pixels, as shown in fig. 1, in which the first pixel is a red pixel, the second pixel is a green pixel, and the third pixel is a blue pixel. The pixel arrangement structure comprises a plurality of pixel units 1 which are repeatedly arranged, each pixel unit 1 comprises a first pixel 11, two

second pixels

12 and 21 and a third pixel 22 which are close to each other, and the distance between the two

second pixels

12 and 21 is smaller than the distance between the

second pixels

12 and 21 and the rest pixels. In other alternatives, according to different pixel arrangement modes, the second pixel may also be selected as a red pixel or a blue pixel, and the first pixel and the third pixel are the remaining two pixels, as long as the first pixel, the second pixel and the third pixel all cover the red, green and blue pixels.

As shown in fig. 1, in each pixel unit, the distance between the

second pixels

12 and 21 close to each other is smaller than the distance between the first pixel 11 and the second pixel 12, and is also smaller than the distance between the third pixel 22 and the second pixel 21. The sum of the widths of the two second pixels 12 and the second pixels 21 close to each other is close to or approximately equal to the width of the first pixel 11 or the third pixel 22, so that the widths of the pixels are basically consistent, and the display effect is ensured. Because two adjacent

second pixels

12 and 21 are the same pixel, they can be closer to each other during processing, and the process requirements can be met. Therefore, the pixel arrangement structure can be more compact, and the resolution of the pixel can be higher. The pixel units in each row are sequentially and repeatedly arranged to form sequential cyclic distribution of the first pixel, the two second pixels and the third pixel.

As a preferable mode, in order to increase the aperture ratio and improve the display effect, the pixel units in the adjacent rows are arranged in a non-aligned manner, and a preferable mode is as follows: the gap between the first pixel 11 and the adjacent second pixel 12 in the same row corresponds to the third pixel 22 of the pixel unit in the adjacent row, and the gap is generally greater than or equal to the width of the third pixel. Similarly, the gap between the third pixel 22 and its adjacent second pixel 21 in the same row corresponds to the first pixel 11 of the pixel unit in the adjacent row, and the gap is also greater than or equal to the width of the first pixel 11; the gap between the first pixel 11 and the adjacent third pixel 22 in the same row corresponds to the two

second pixels

12 and 21 of the adjacent row of pixel units, and is greater than or equal to the sum of the widths of the

second pixels

12 and 21 and the gap between the

second pixels

12 and 21. Through the staggered distribution mode, gaps among pixels are effectively guaranteed, so that the design allowance of an OLED is guaranteed, the aperture opening ratio of R/G/B sub-pixels is increased, the problem that the aperture opening ratio of the pixels is guaranteed while the resolution ratio cannot be improved in the prior art is solved, the aperture opening ratio of the sub-pixels is guaranteed, and the light transmittance is improved.

In the scheme, two adjacent sub-pixels (such as G pixels) in one row are abutted, and the adjacent rows are staggered by one pixel, so that 1/3 reduction of the number of sub-pixels and pixel circuit units can be realized, the design margin of an OLED (organic light emitting diode) can be ensured, and the aperture ratio of the R/G/B sub-pixels can be increased.

In some specific embodiments, the widths of the first pixel 11, the

second pixel

12, 21, and the third pixel 22 in the pixel unit are reasonably set according to the resolution requirement, and the specific values are determined according to the process capability and the pre-developed product PPI. For example, in one pixel unit, a distance between two second pixels close to each other may be selected to be 5 μm to 10 μm, a distance between the first pixel and the adjacent second pixel may be selected to be 10 μm to 30 μm, and a distance between the third pixel and the adjacent second pixel may be 10 μm to 30 μm. In the above preferred numerical range, it can be seen that the distance between two second pixels close to each other can be set closer than the distance between the remaining pixels, thereby making the arrangement of pixels more compact and the resolution higher.

As shown in fig. 2, when the PPI is about 518, the distance a is 55.125 μm, the distance b is 49 μm, the width c of the red pixel is 10.5 μm, the height d of the red pixel is 21 μm, the width e of the green pixel is 5 μm, the distance f between two green pixels is 5 μm, the distance g is 40 μm, the distance h between the green pixel and the adjacent blue pixel is 24 μm, and the distance i is 34.5 μm. The scheme can realize the compact arrangement of the pixels, ensure the integral space between the pixels and improve the aperture opening ratio of the pixels. When the resolution is further increased, such as PPI is about 518, the R/G/B pixel aperture ratio is about 1%/1%/2% when the pixel arrangement is performed in the general manner in the prior art, and the R/G/B aperture ratio is about 4.1%/3.9%/4.1% when the pixel arrangement configuration adjustment scheme in this embodiment is employed. Therefore, the pixel aperture opening ratio in the scheme is greatly improved. Therefore, the pixel arrangement structure in the embodiment can better give consideration to the current Array and evaporation process level, and high-resolution display is realized.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A pixel arrangement structure comprises a plurality of pixel units which are repeatedly arranged, wherein each pixel unit comprises a first pixel, two second pixels and a third pixel which are close to each other, the first pixel, the second pixels and the third pixels are sequentially arranged, the distance between the two second pixels is smaller than the distance between the second pixels and the rest pixels, and the first pixels, the second pixels and the third pixels are different pixels;

the gap between the first pixel and the third pixel which are adjacent in the same row corresponds to the two second pixels which are close to each other of the pixel units in the adjacent row, and the gap between the first pixel and the third pixel which are adjacent in the same row is larger than the sum of the width and the gap of the two second pixels in the adjacent row.

2. A pixel arrangement according to claim 1, wherein the gap between the first pixel and the second pixel adjacent thereto in the same row corresponds to the third pixel of the pixel unit in the adjacent row.

3. A pixel arrangement according to claim 2, wherein the gap between the first pixel and its adjacent second pixel in a same row is greater than the width of the third pixel in its corresponding adjacent row.

4. A pixel arrangement according to claim 1, 2 or 3, wherein the distance between two of said second pixels that are close to each other in said pixel unit is 5 μm to 10 μm.

5. A pixel arrangement according to claim 4, wherein the distance between the first pixel and its adjacent second pixel in the pixel unit is 10 μm to 30 μm.

6. A pixel arrangement according to claim 4, wherein the distance between the third pixel and its adjacent second pixel in the pixel unit is 10 μm to 30 μm.

7. A pixel arrangement according to claim 1 or 2 or 3 or 5 or 6, wherein the sum of the widths of two second pixels that are close to each other in the pixel unit is equal to the width of the first or third pixel.

8. A pixel arrangement according to claim 7, wherein the first pixel is a red sub-pixel, the second pixel is a green sub-pixel, and the third pixel is a blue sub-pixel.