WO2021127800A1

WO2021127800A1 - Edge color cast-improving display device and television

Info

Publication number: WO2021127800A1
Application number: PCT/CN2019/127286
Authority: WO
Inventors: 林建宏; 颜家煌; 刘政明
Original assignee: 重庆康佳光电技术研究院有限公司
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-07-01
Also published as: CN111164758A

Abstract

An edge color cast-improving display device and a television, comprising a display substrate. Multiple pixel subarrays (10) are provided on the display substrate. The pixel subarrays (10) comprise red, green, and blue pixels. Identically colored pixels are not provided adjacent to each other in a same transverse row between the pixel subarrays (10) and are not provided adjacent in a same vertical column. With the identically colored pixels being provided nonadjacent to each other in a same transverse row or in a same vertical column between the pixel subarrays (10) comprising three primary colors on the display substrate, a row or column of a single color is prevented from appearing at the edges of the display substrate, thus effectively improving on the problem of color cast.

Description

Display device and television for improving edge color shift

Technical field

The present invention relates to the field of LEDs, and in particular to a display device and a television for improving edge color shift.

Background technique

Miniature light-emitting diodes (uLED) are becoming more and more widely used as displays for commercialization. By integrating high-density and small-sized LED arrays on a chip, thin film, miniaturization and matrixing are realized. Each LED is a pixel, and its pixel The dot distance is reduced from millimeter level to micrometer level, and each pixel can be addressed and emit light individually.

Micro LED display has the advantages of low power consumption, high brightness, ultra-high resolution and color saturation, and has the advantages of faster response speed, longer life and higher efficiency. It can be widely used in car panels, outdoor displays, and large sizes. Televisions, mobile phones, e-sports laptops, etc. are more suitable for the production of transparent displays, projection displays, flexible displays, stereoscopic displays and other fields, which can enrich the diverse application scenarios in the future.

In the prior art, if the red, green and blue sub-pixels are arranged in sequence on the basis of each row, columns of the same color may appear on the edge of the display substrate; if the red, green and blue sub-pixels are arranged in sequence on the basis of each row, the display may be Lines of the same color appear on the side of the substrate. In these two cases, the lack of a combination of the three primary colors will cause color shift.

Therefore, the existing technology needs to be improved and improved.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a display device and a television that improve edge color shift, by arranging pixels of the same color between pixel sub-arrays including three primary colors on the display substrate to be in the same column Or the same line is not adjacent to each other, so that no single color row or column appears on the edge of the display substrate, which effectively improves the color cast problem.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A display device for improving edge color shift includes a display substrate on which a plurality of pixel sub-arrays are arranged. The pixel sub-arrays include three color pixels of red, green and blue. The pixel points of the same color between the pixel sub-arrays are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column. In the present invention, the pixels of the same color between the pixel sub-arrays including the three primary colors on the display substrate are arranged so as not to be arranged adjacently in the same horizontal row and the same vertical column, so that no single-color row or column appears on the edge of the display substrate. Effectively improve the color cast problem.

Optionally, the pixel sub-array includes three pixel points, the three pixel points are respectively red, green, and blue, and the arrangement of the three pixel points is red, green, blue, red, blue, and green. Any of, green blue red, green red blue, blue green red, blue red green. A pixel sub-array is composed of three pixels of red, green, and blue. Regardless of the arrangement of the three pixels in the pixel sub-array, the arrangement of each of the pixel sub-arrays is the same, so that the display substrate The color light is uniform, and the color cast is improved.

Optionally, the pixel sub-array includes four pixel points, and the four pixel points include a pair of same-color pixel points; the same-color pixel points in the pixel sub-array are not arranged adjacently on the same horizontal row, And they are not arranged adjacently on the same vertical column; when a pair of the same color pixels are red, the arrangement is any one of red, blue, red, green, red, green, red, blue, green, red, blue, red, and blue, red, green, and red. ; When a pair of the same color pixels are green, the arrangement is any one of green, red, green, blue, green, blue, green, red, blue, green, red and green, red, green, blue and green; when a pair of the same color pixels is In the case of blue, the arrangement is any of green, blue, red, blue, red, blue, green, blue, blue, red, blue and green, and blue, green, and blue. When the display effect of the red, green, and blue pixels is different, setting the pixels with weak display effect to two can effectively improve the display effect.

Optionally, the pixel sub-array includes five pixel points, and the five pixel points include two pairs of same-color pixel points or three same-color pixel points; the same-color pixel points in the pixel sub-array are in the same horizontal row They are not arranged adjacent to each other, and are not arranged adjacent to each other on the same vertical column.

Optionally, the pixel sub-array includes six pixel points, and the pixel points of each color in the six pixel points are less than or equal to three; the pixels of the same color in the pixel sub-array are not on the same horizontal row. They are arranged adjacently and not adjacent to each other on the same longitudinal column.

A television includes a television housing, and a display device for improving edge color shift as described above, which is arranged in the television housing.

Compared with the prior art, the present invention provides a display device and a television for improving edge color shift, including a display substrate on which a plurality of pixel sub-arrays are arranged, and the pixel sub-arrays include red, green, and The pixel points of the three colors of blue are not arranged adjacently on the same horizontal row and not adjacently arranged on the same vertical column among each of the pixel sub-arrays of the same color. In the present invention, the pixels of the same color between the pixel sub-arrays including the three primary colors on the display substrate are arranged so as not to be arranged adjacently in the same horizontal row and the same vertical column, so that no single-color row or column appears on the edge of the display substrate. Effectively improve the color cast problem.

Description of the drawings

FIG. 1 is a structure diagram of a pixel array with pixels of the same color in the same vertical column in the prior art;

2 is a structure diagram of a pixel array with pixels of the same color in the same horizontal row in the prior art;

3 is a structural diagram of a pixel sub-array including three pixels of a display device for improving edge color shift provided by the present invention;

4 is a structural diagram of a pixel sub-array with four pixels and a weaker display effect of red pixels of a display device for improving edge color shift provided by the present invention;

5 is a structural diagram of a display device for improving edge color shift provided by the present invention, which includes four pixels and has a weaker display effect of green pixels;

6 is a structural diagram of the display device for improving edge color shift provided by the present invention, which includes four pixels and has a weaker display effect of blue pixels.

Detailed ways

In view of the problems in the prior art, the present invention provides a display device for improving the edge color shift, by arranging the same color pixel points between the pixel sub-arrays including three primary colors on the display substrate to be in the same horizontal row and the same vertical column. The non-adjacent arrangement prevents rows or columns of a single color from appearing on the edge of the display substrate, effectively improving the color cast problem.

The specific implementation of the present invention is to facilitate a more detailed description of the technical concept of the present invention, the technical problems to be solved, the technical features constituting the technical solution, and the technical effects brought about by the present invention. It should be noted that the explanation of these embodiments does not constitute a limitation on the protection scope of the present invention. In addition, the technical features involved in the embodiments described below can be combined with each other as long as they do not conflict with each other.

The display efficiency of the micro light emitting diode (uLED) display device can be close to 70%. It frees the virtual reality system from the shackles of the power cord and greatly extends the battery life of smart watches and smart phones. It has the advantages of low power consumption, high brightness, ultra-high resolution and color saturation, faster response speed, longer life and higher efficiency, and can be widely used in a variety of application scenarios.

Please refer to Figure 1 and Figure 2. Due to the prior art technical solution based on the row and column arrangement of red, green and blue pixels in sequence, a row or column of pixels of the same color will appear. This situation will result in the side of the display substrate. There may be monochromatic rows or monochromatic columns on the edges, so the lack of a combination of the three primary colors leads to the problem of color cast. As shown in Figure 1, taking red (R), green (G), and blue (B) as a pixel array, arranged in sequence along the row direction, all red (R) will appear on the side columns of the display substrate In the case of pixels; as shown in Figure 2, with red (R), green (G), and blue (B) as a pixel array, arranged in sequence along the column direction, all pixels will appear on the side rows of the display substrate. This is the case of red (R) pixels. If it is arranged in green (G), blue (B), and red (R), or blue (B), green (G), and red (R) are arranged as a pixel array along rows or columns, then There may be other single-color pixels. Especially when the viewing angle is large, the three colors of red, green and blue are mixed to be white. Without blue, only red and green will be orange-red, and without red, only green and blue will be cyan. Therefore, there is an urgent need to provide a solution to solve the color cast problem.

In summary, referring to FIGS. 3 to 6, the present invention provides a display device for improving edge color shift, which includes a display substrate on which a plurality of pixel sub-arrays 10 are arranged, and the pixel sub-arrays 10 At least three pixels of three colors including red pixels, green pixels, and blue pixels in each of the pixel sub-arrays 10 of the same color are not arranged adjacent to each other on the same horizontal row, and are arranged in the same horizontal row. Not adjacent to each other on the same vertical column. In the present invention, the pixel points of the same color between the pixel sub-arrays 10 including three primary colors on the display substrate are arranged so as not to be arranged adjacently on the same horizontal row and the same vertical column, so that no single color row or column appears on the edge of the display substrate. , Effectively improve the color cast problem.

In specific implementation, in this embodiment, the pixel sub-array 10 is used as a unit, and the pixel sub-array 10 includes three colors of pixels, red, green, and blue, so that each pixel The array 10 contains the complete three primary colors. In order to avoid the situation that two adjacent pixels between the pixel sub-arrays 10 are pixels of the same color, the same-color pixel points between each of the pixel sub-arrays 10 are set to be non-adjacent (that is, the last pixel sub-array of the previous One pixel is adjacent to the first pixel of the next pixel sub-array, these two pixels are not pixels of the same color), and the final arrangement is that the pixels of each color are in the same vertical column and the same There are no adjacent pixels of the same color in the cross direction of the horizontal rows. In other words, each pixel sub-array contains three pixels of red (R), green (G) and blue (B). The pixel sub-array can be along the row direction (the horizontal direction is the row direction) or the column The direction (the direction perpendicular to the horizontal direction is the column direction) is arranged in sequence, and the pixels of the same color on the same row or the same column will not be adjacent (that is, the pixels of the same color are separated by at least one other pixel of different color), Pixels of the same color on adjacent rows or adjacent columns are staggered by one position, and they are separated by a pixel of other colors in the horizontal or vertical direction, and can only be connected by diagonal lines. It avoids monochromatic rows or monochromatic columns on the side of the display substrate, and realizes mixed-color display, and no single-color rows or columns appear on the edge side, so as to avoid the problem of color shift.

The present invention relates to a display device containing a plurality of pixel points, each pixel point is composed of a micro light emitting diode (uLED), including a display substrate and a plurality of pixel sub-arrays 10 thereon, the pixel sub-array 10 Electrically connected to the controller, the micro light-emitting diodes corresponding to the red pixel, the green pixel and the blue pixel can be individually adjusted to emit light of three colors and different wavelengths, and combined with different gray levels to form a full-color display effect. The pixel sub-array 10 is a combination of micro light-emitting diodes, and each pixel sub-array 10 is periodically arranged on the display substrate (that is, each pixel sub-array 10 is sequentially arranged on the display substrate in the same arrangement). The mixed color display is realized, and the edge area of the display area is no longer just a single strip of pure color light, and there is no color cast due to lack of color.

Optionally, please continue to refer to FIG. 3. The pixel sub-array 10 includes three pixel points, and the three pixel points are arranged in six ways; each of the red pixel points and the green pixel points in the pixel sub-array 10 Pixels and blue pixels are arranged in the same arrangement. Taking red pixel points, green pixel points, and blue pixel points as one pixel sub-array 10, no matter which arrangement method is used for the three pixel points in the pixel sub-array 10, the arrangement manner of each pixel sub-array 10 is the same , In order to make the color of the display substrate uniform, basically no color shift.

In specific implementation, in this embodiment, the pixel sub-array 10 only includes three pixel points, that is, there are only one red pixel point, green pixel point, and blue pixel point, respectively. It is ensured that the pixel sub-array 10 contains complete three primary colors, and the number of pixels of each color is the same, so as to achieve mixed color display. In addition, the pixel points in the pixel sub-array 10 can be arranged in any of six modes: red, green, blue, red, blue, green, green, blue, red, green, red, blue, blue, green, red, and blue, red and green, and only need to meet the requirements of the same color pixels. The premise that the dots are not arranged adjacently on the same horizontal row and on the same vertical column can make the display substrate be a combination of three primary colors in both rows and columns, and no single-color row or row will appear on the edge side. Column to avoid the problem of color cast. It should be noted that the above implementation should satisfy that there are no adjacent pixels of the same color in the pixel sub-array 10 and between each pixel sub-array 10 (that is, pixels of the same color are not adjacent on the same horizontal row). Setting, and not adjacent to each other on the same vertical column) to avoid the appearance of a single-color pixel area, resulting in chromatic aberration.

Further, referring to FIGS. 4 to 6, in practical applications, the color of one of the three primary colors red pixel, green pixel, and blue pixel may be poorly displayed and needs to be compensated. The pixel sub-array 10 includes four pixel points, and the four pixel points include a pair of pixels of the same color; the pixels of the same color in the pixel sub-array 10 are not adjacent on the same horizontal row And they are not arranged adjacently on the same longitudinal column; when there are any kind of pixels of the same color, the pixel sub-array 10 has four pixel arrangements.

During specific implementation, in this embodiment, the pixel sub-array 10 is set to include four pixel points, in which in addition to one red pixel point, green pixel point, and blue pixel point, one pixel point is added. Pixels are pixels of the same color that have weaker display effects. For example, when a pair of pixels of the same color are red, the arrangement is any one of red, blue, red, green, red, green, red, blue, green, red, blue, and red; when a pair of pixels of the same color are When it is green, the arrangement is any of green, red, green and blue, green, blue, green, red, blue, green, red and green, and red, green, blue and green; when a pair of the same color pixels are blue, the arrangement is green and blue Any of red-blue, red-blue-green-blue, blue-red-blue-green, blue-green-blue-red. In particular, the pixel sub-array 10 can select different pixel point arrangements, but each pixel sub-array 10 in the same display device is the same.

In this embodiment, when the display effect of the red pixel, the green pixel, and the blue pixel is different, the pixel with the weakest display effect is set to two, which uses 4 sub-pixels as one pixel. The arrangement pattern of the cells (pixel sub-arrays) can compensate for the weaker colors to a certain extent, but the row or column position may also appear in the situation where two single colors alternate (for example, after the red pixels appear, every second A red pixel appears again after a green or blue pixel), but it also has a greater improvement compared to the prior art solution. It should be noted that the above implementation should satisfy that there are no adjacent pixels of the same color in the pixel sub-array 10 and between each pixel sub-array 10 (that is, pixels of the same color are not adjacent on the same horizontal row). Setting, and not adjacent to each other on the same vertical column) to avoid the appearance of a single-color pixel area, resulting in chromatic aberration.

In an optional implementation manner, the pixel sub-array 10 includes five pixel points, and there are two pairs of same-color pixel points or three same-color pixel points in the five pixel points; Pixels of the same color are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column.

Specifically, the five pixels in the pixel sub-array 10 can also be randomly arranged, but it should also follow the rule that there are no adjacent pixels of the same color in the same row and in the same column, so as to avoid the appearance of a single-color pixel area and chromatic aberration. .

In an optional implementation manner, the pixel sub-array 10 includes six pixel points, and each of the six pixel points is less than or equal to three; the same-color pixels in the pixel sub-array 10 are They are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column.

Specifically, the six pixels in the pixel sub-array 10 can also be randomly arranged, but the rule that there are no adjacent pixels of the same color in the same row and in the same row must also be followed to avoid the appearance of a single-color pixel area and chromatic aberration. .

It should be noted that the number of pixels included in the pixel sub-array 10 and the arrangement of the pixels are not limited to the above-mentioned types, and there are other settings and arrangements of the number of pixels that can improve the color shift. , But they are all within the protection scope of the present invention.

A television includes a television housing, and a display device for improving edge color shift as described above, which is arranged in the television housing. Since the display device for improving the edge color shift has been described in detail above, it will not be repeated here.

In summary, the display device and the TV for improving edge color shift provided by the present invention include a display substrate on which a plurality of pixel sub-arrays are arranged, and the pixel sub-arrays include red, green, and blue. For the three-color pixel points, the same-color pixel points between each of the pixel sub-arrays are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column. In the present invention, the pixels of the same color between the pixel sub-arrays including the three primary colors on the display substrate are arranged not to be adjacently arranged on the same horizontal row, and not adjacently arranged on the same vertical column, so that no occurrence of the pixels on the edge of the display substrate A single color row or column can effectively improve the color cast problem.

It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution of the present invention and its inventive concept, and all these changes or substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

A display device for improving edge color shift, which is characterized by comprising a display substrate, a plurality of pixel sub-arrays are arranged on the display substrate, and each of the pixel sub-arrays includes three colors of red, green and blue. There are at least three pixel points, and the same-color pixel points between each of the pixel sub-arrays are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column.
The display device for improving edge color shift according to claim 1, wherein the pixel sub-array includes three pixel points, the three pixel points are red, green, and blue respectively, and the three The arrangement of the pixels is any one of red, green, blue, red, blue, green, green, blue, red, green, red, blue, blue, green, and blue.
The display device for improving edge color shift according to claim 1, wherein the pixel sub-array includes four pixel points, and the four pixel points include a pair of pixels of the same color.
The display device for improving edge color shift according to claim 3, wherein the same color pixel points in the pixel sub-array are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column.
The display device for improving edge color shift according to claim 4, wherein when a pair of pixels of the same color are red, the arrangement is red, blue, red, green, red, green, red, blue, green, red, blue, and blue. Any one of red, green, and red; when a pair of pixels of the same color are green, the arrangement is any of green, red, green, blue, green, blue, green, red, blue, green, red, green, red, green, and blue; when When a pair of the same color pixel points are blue, the arrangement mode is any one of green, blue, red, blue, red, blue, green, blue, blue, red, blue, and green, and blue, green, and blue.
The display device for improving edge color shift according to claim 1, wherein the pixel sub-array includes five pixel points, and the five pixel points include two pairs of pixels of the same color or three pixels of the same color .
The display device for improving edge color shift according to claim 6, wherein the same-color pixels in the pixel sub-array are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column.
The display device for improving edge color shift according to claim 1, wherein the pixel sub-array includes six pixels, and each color of the six pixel points is less than or equal to three.
8. The display device for improving edge color shift according to claim 8, wherein the pixels of the same color in the pixel sub-array are not arranged adjacently on the same horizontal row, and are not arranged adjacently on the same vertical column.
A television, characterized by comprising a television housing, and a display device for improving edge color cast according to any one of claims 1 to 9 arranged in the television housing.