CN107238967B

CN107238967B - Substrate and liquid crystal panel

Info

Publication number: CN107238967B
Application number: CN201710651325.XA
Authority: CN
Inventors: 田甜; 徐向阳
Original assignee: Shenzhen China Star Optoelectronics Technology Co Ltd
Current assignee: TCL Huaxing Photoelectric Technology Co Ltd
Priority date: 2017-08-01
Filing date: 2017-08-01
Publication date: 2020-10-09
Anticipated expiration: 2037-08-01
Also published as: CN107238967A

Abstract

The invention discloses a substrate, wherein a plurality of sub-pixels arranged in a matrix are arranged on the substrate, and each sub-pixel comprises three white sub-pixels and one primary color sub-pixel. The invention also discloses a liquid crystal panel comprising the substrate. The scheme of the invention can greatly widen the display gray scale of the liquid crystal panel, improve the contrast of the liquid crystal panel and enable the liquid crystal display to be used in the field of medical display.

Description

Substrate and liquid crystal panel

Technical Field

The invention relates to the technical field of liquid crystal displays, in particular to a substrate and a liquid crystal panel with the same.

Background

Liquid crystal displays have been widely used in various fields as a low power consumption display technology.

Display devices used in the medical field generally have high requirements on the contrast of the display. For example, a display screen used for X-ray medical imaging, in order to realize clear imaging and facilitate observation and diagnosis of personnel, the gray scale of a picture is required to be richer and finer, and the contrast is required to be higher.

However, the existing liquid crystal display can only perform 256-gray scale display, and the areas with similar colors in the picture are difficult to be clearly distinguished, so that the existing liquid crystal display cannot be perfectly applied to medical display.

Disclosure of Invention

In view of the above, the present invention provides a substrate and a liquid crystal panel having the same, which can solve the problems of limited gray scale and low contrast of a liquid crystal display.

A substrate is provided with a plurality of sub-pixels arranged in a matrix, and each sub-pixel comprises three white sub-pixels and one primary color sub-pixel.

Wherein every three adjacent sub-pixels in each row constitute a pixel.

And each three adjacent sub-pixels in the horizontal row and the vertical row form one pixel.

Wherein the three white and primary color sub-pixels in each of the sub-pixels are distributed in a 2 x 2 matrix.

And in any two of the sub-pixels, the positions of the two primary color sub-pixels in the corresponding sub-pixels are the same.

A liquid crystal panel comprises a substrate, wherein a plurality of sub-pixels arranged in a matrix are arranged on the substrate, and each sub-pixel comprises three white sub-pixels and one primary color sub-pixel.

Wherein every three adjacent sub-pixels in each row constitute a pixel.

In the solution of the present invention, each of the sub-pixels can be further divided into three of the white sub-pixels and one of the primary color sub-pixels, wherein each of the sub-pixels has 256 gray-scale values of 0-255, so that each of the sub-pixels has 256 gray-scale values⁴A gray scale. Therefore, the display gray scale of the liquid crystal panel with the substrate can be greatly widened, the contrast of the liquid crystal panel is greatly improved, the picture display is more exquisite and rich, and the liquid crystal panel can be used in the field of medical display.

Drawings

To more clearly illustrate the structural features and effects of the present invention, a detailed description is given below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic plan view of a pixel arrangement in a substrate according to a first embodiment of the present invention;

FIG. 2 is a schematic plan view of a pixel arrangement in a substrate according to a second embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of a liquid crystal panel according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

The following embodiments of the present invention provide a substrate. The substrate may be a TFT (thin film transistor) substrate in a liquid crystal panel. The substrate is provided with a plurality of sub-pixels which are arranged in a matrix mode, and each sub-pixel comprises three white sub-pixels and one primary color sub-pixel.

Specifically, three of the sub-pixels constitute one pixel. The sub-pixels may be, for example, R sub-pixels, G sub-pixels, or B sub-pixels. A single said sub-pixel may in turn be divided into three said white sub-pixels and one said primary sub-pixel. The white sub-pixel is a secondary light-emitting unit capable of displaying W (white), and the primary sub-pixel is a secondary light-emitting unit displaying one of three colors of R (red), G (green), and B (blue). The emission color of each of the sub-pixels is superimposed by the emission colors of three of the white sub-pixels and one of the primary sub-pixels, and the color after the superimposition is the same as the color of the single primary sub-pixel, but the luminance of the superimposed color may be higher. The positions of three of the white sub-pixels and one of the primary sub-pixels in each of the sub-pixels may be set as desired.

In the substrate of this embodiment, each sub-pixel can be further divided into three white sub-pixels and one primary color sub-pixel, wherein each sub-pixel can have 256 gray-scale values of 0-255, so that one sub-pixel can have 256 gray-scale values⁴A gray scale. Therefore, the display gray scale of the liquid crystal panel with the substrate can be greatly widened, the contrast of the liquid crystal panel is greatly improved, the picture display is more exquisite and rich, and the liquid crystal panel can be used in the field of medical display.

Specifically, fig. 1 shows a substrate 10 according to a first embodiment of the present invention. As shown in fig. 1, the substrate 10 is schematically shown provided with

sub-pixels

111, 112, and 113 arranged in a matrix, and

sub-pixels

122 and 123. Wherein each sub-pixel comprises three W-color sub-pixels and one primary-color sub-pixel. For example, subpixel 111 includes three W color subpixels and one R color subpixel; sub-pixel 122 includes three W color sub-pixels and one G color sub-pixel; the sub-pixel 123 includes three W color sub-pixels and one G color sub-pixel.

In the first embodiment, as shown in fig. 1, the three white sub-pixels and the primary color sub-pixels may be distributed in a 2 × 2 matrix within each sub-pixel. For example, the distribution of three W sub-pixels and one R sub-pixel within sub-pixel 111 forms a 2 x 2 matrix; the distribution of three W sub-pixels and one B sub-pixel within sub-pixel 112 form a 2 x 2 matrix. In this way, 3W sub-pixels surround one primary color sub-pixel, so that the colors of the primary color sub-pixel can be uniformly mixed, and the luminance of the primary color sub-pixel can be uniformly enhanced. In other embodiments, the three white sub-pixels and the primary sub-pixels within each sub-pixel may also be distributed in a 1 x 4 matrix.

Further, in the first embodiment, in any two of the sub-pixels, the positions of the two primary color sub-pixels in the corresponding sub-pixels are the same. For example, as shown in FIG. 1, the R color sub-pixel in the sub-pixel 111 is located at the lower right corner of the sub-pixel 111 area, and the G color sub-pixel in the sub-pixel 122 is also located at the lower right corner of the sub-pixel 122 area. The arrangement can enable the light emission of each sub-pixel to be uniform, and the forming and routing of each sub-pixel can be easy to manufacture. In other embodiments, the positions of the primary color sub-pixels in each of the sub-pixels may be arbitrarily set as required, and are not limited to be the same for the positions of the primary color sub-pixels in the sub-pixels corresponding to the primary color sub-pixels. For example, for subpixel 111 in FIG. 1, the R color subpixel is in the lower right corner, while the G color subpixel in subpixel 122 may be in the upper left corner instead, the B color subpixel in subpixel 123 may be in the lower left corner instead, and so on.

In the embodiment of the present invention, each three adjacent sub-pixels in each row constitute one pixel. I.e. three of said primary sub-pixels of every three adjacent said sub-pixels are each one of R, G, B sub-pixels, such that each of said sub-pixels is capable of displaying a pure color, and three adjacent said sub-pixels are combined to form one said pixel. Wherein the "rows" may be transverse rows and/or longitudinal rows. Namely, three sub-pixels arranged in the transverse direction of the substrate form one pixel, and/or three sub-pixels in the longitudinal direction form one pixel.

For example, as shown in fig. 1, in the present first embodiment, the

sub-pixels

111, 122, and 123 in the row form one pixel 12, as indicated by a dashed box extending left and right; the

sub-pixels

111, 112, and 113 in the vertical row also constitute one pixel 11 as indicated by the broken line boxes extending up and down. Due to the arrangement, the number of pixels in a unit area is large, so that the resolution of the liquid crystal panel is increased, and the fineness of a display picture is improved.

Alternatively, as shown in fig. 2, in the second embodiment of the present invention, unlike the first embodiment, only every three adjacent sub-pixels in one direction in the substrate 20 constitute one pixel. For example, fig. 2 schematically shows that the

subpixels

211, 222, and 223 in the horizontal row constitute the pixel 22. Of the

subpixels

211, 212, and 213 in the vertical row, since three of the primary color subpixels do not constitute R, G, B three-color combination, the

subpixels

211, 212, and 213 do not constitute one pixel. It should be noted that only primary color sub-pixels of the same color are included in the sub-pixels 211, 212, and 213 that do not constitute one pixel in fig. 2, which is merely an example, and the present invention is not limited thereto in practice. For example, three adjacent sub-pixels which do not form a pixel may include primary color sub-pixels of two colors.

The embodiment of the invention also provides a liquid crystal panel which comprises the substrate in the embodiment. The liquid crystal display panel has the advantages of wider displayable gray scale range, higher contrast ratio and more exquisite and rich picture display, and can be used in the field of medical display.

Specifically, fig. 3 shows a liquid crystal panel 100 according to an embodiment of the present invention. The liquid crystal panel 100 may include the substrate 10(TFT substrate) and the color filter substrate 160 in the first embodiment, and the liquid crystal layer 130 filled between the substrate 10 and the color filter substrate 160. Between the substrate 10 and the liquid crystal layer 130, a TFT and an alignment layer 120 may be disposed on the dye polarizer 110. A dye polarizer 150 may be disposed between the color filter substrate 160 and the liquid crystal layer 130. A color filter unit, a Black Matrix (BM), and an alignment layer 140 may be disposed on the dye polarizer 150. In the embodiment, the dye polarizer 110 and the dye polarizer 150 are both embedded in the liquid crystal panel 100, which is beneficial to thinning the liquid crystal panel 100 and enhancing the weather resistance of the dye polarizer.

In addition, the structure and distribution of the filter units on the color filter substrate 160 correspond to those of the sub-pixels. Specifically, a plurality of filter units arranged in a matrix are arranged on the color filter substrate 160, each filter unit includes three white secondary filter units and one primary color secondary filter unit, each filter unit corresponds to one of the sub-pixels, and each primary color secondary filter unit in the filter unit corresponds to one of the sub-pixels. That is, each of the filter units may be divided into three W (white) sub-filter units and one primary color sub-filter unit. The primary color secondary filtering unit is a secondary filtering unit of one of three colors of R (red), G (green) and B (blue). The position of the primary color secondary filtering unit in the filtering unit is the same as the position of the primary color secondary pixel in the sub-pixel. Thereby, the liquid crystal panel 100 can display colors.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A substrate, characterized in that,

the substrate is provided with a plurality of sub-pixels which are arranged in a matrix, wherein in the matrix formed by the sub-pixels, every three adjacent sub-pixels in one direction only form one pixel; each of the sub-pixels comprises three white sub-pixels and one primary sub-pixel.

2. The substrate of claim 1,

the three white and primary color sub-pixels in each of the sub-pixels are distributed in a 2 x 2 matrix.

3. The substrate according to claim 1 or 2,

in any two of the sub-pixels, the two primary color sub-pixels have the same position in the corresponding sub-pixel.

4. A liquid crystal panel includes a substrate, characterized in that,

5. The liquid crystal panel according to claim 4,

6. The liquid crystal panel according to claim 4 or 5,