WO2012012955A1

WO2012012955A1 - Liquid crystal display and pixel unit thereof

Info

Publication number: WO2012012955A1
Application number: PCT/CN2010/076536
Authority: WO
Inventors: 贺成明; 廖良展; 郭东胜; 李芝娴
Original assignee: 深圳市华星光电技术有限公司
Priority date: 2010-07-29
Filing date: 2010-09-01
Publication date: 2012-02-02
Also published as: CN101943833B; CN101943833A

Abstract

A liquid crystal display and a pixel unit (11) thereof are disclosed. The pixel unit (11) mainly comprises multiple sub-pixel units (110, 111, 112), each of which (110, 111, 112) is a square-shaped block divided along its diagonal line (100) into a bright triangular block (100A) and a dark triangular block (100B); and the bright block (100A) of each sub-pixel unit (110, 111, 112) corresponds to the dark block (100B) of an adjacent sub-pixel unit (110, 111, 112). The structure of the pixel unit (11) can reduce the jaggies of picture lines and improve the picture quality of the liquid crystal display.

Description

Liquid crystal display and its pixel unit

Technical field

The present invention relates to a liquid crystal display, and more particularly to a liquid crystal display and a pixel unit thereof, wherein the pixel unit is constructed to improve the image quality of the liquid crystal display. Background technique

The liquid crystal panel has a phenomenon in which color shift occurs as the viewing angle increases. At present, large-size LCD panel manufacturers have various solutions for solving the problem of large-vision role bias. One of the more common solutions is shown in FIG. 1. FIG. 1 is a disclosure of a conventional liquid crystal panel. A schematic diagram of a partial pixel unit (Pixel) distribution, comprising a display area 90 and a plurality of pixel units 91 arranged in a two-dimensional array in the display area 90, wherein each The pixel unit 91 includes three sub-pixel units (Subpixel) 910, which respectively control the three primary colors of red, green and blue. Each of the sub-pixel units 910 is divided into a square bright block 910A and a square dark block 910B along a horizontal line 900. The splitting is mainly to make the bright block 910A and the dark block 910B. The alignment direction of the liquid crystal molecules is different. When the display circuit of a liquid crystal panel controls the pixel unit 91 to display a gray scale, the luminous flux of the bright block 910A and the dark block 910B may be different. Each of the bright blocks 910A will be brighter than each of the dark blocks 910B. The brightness of the bright block 910A and the dark block 910B mixed at various angles of the liquid crystal panel will be substantially the same as the brightness when we face the liquid crystal panel, thereby solving the problem of color shift phenomenon.

However, as the size of the panel is increased, the pixel unit 91 increases with the size of the panel, and the eye can gradually feel the uneven brightness caused by the bright and dark blocks. Some pictures can also be felt, affecting the overall picture quality, and there will be a jagged problem in some oblique angle lines. Taking FIG. 2 as an example, FIG. 2 reveals a thinning through the pixel unit 91 of FIG. A schematic representation of line 92. When the oblique line 92 is displayed on the display area 90, part of the The pixel unit 9 同时 displays black at the same time to form the oblique line 92, and the user will see that the oblique line 92 is in a zigzag shape, and is cut by the pixel unit 91 in two. As a result, the pixel unit 9 that originally displays black will cause the user to visually feel that the point he sees is larger because of the influence of the dark block area 910B' adjacent to the pixel unit 91, which will inevitably make the image quality affected.

Therefore, it is necessary to provide a liquid crystal display and a pixel unit thereof to solve the problems of the prior art. Summary of the invention

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a liquid crystal display in which the pixel unit included in the configuration can make the image quality brightness more uniform, improve the image quality of the display, and reduce the aliasing phenomenon when the screen displays the oblique line.

A secondary object of the present invention is to provide a pixel unit, wherein a plurality of sub-pixel units are composed of a bright block and a dark block of a triangle, and the bright block and the dark block of the adjacent sub-pixel unit correspond to each other. Helps reduce the jagged effect of the screen display and improve the display quality.

In order to achieve the foregoing object of the present invention, the present invention provides a liquid crystal display, the liquid crystal display comprising a plurality of pixel units arranged in a two-dimensional array in a display area, each of the The pixel unit is a plurality of sub-pixel units, each of the sub-pixel units is a square block, and the square block is divided into a bright block and a dark block along a diagonal line, wherein each of the blocks The bright block of the sub-pixel unit and the dark block of its adjacent sub-pixel correspond to each other.

In an embodiment of the invention, each of the pixel units is composed of a plurality of the plurality of sub-pixel units being side by side; the plurality of sub-pixel units are respectively a first sub-pixel unit and a second sub-pixel The unit and a third sub-pixel unit respectively control display of three primary colors of red, green and blue.

In an embodiment of the invention, the plurality of sub-pixel units are side by side to form the pixel unit. In an embodiment of the invention, the oblique line is a pair of diagonal lines of the square block; the bright block and the dark block are both triangular.

In an embodiment of the invention, the bright block and the dark block are distinguished according to different directions of liquid crystal alignment.

Furthermore, the present invention provides a pixel unit, the pixel unit includes a plurality of sub-pixel units, each of the sub-pixel units is a square block, and the square blocks are divided into a bright block along a diagonal line. And a dark block, wherein the bright block of each of the sub-pixel units and the dark block of the adjacent sub-pixels thereof correspond to each other.

In an embodiment of the invention, the plurality of sub-pixel units are side by side to form the pixel unit.

In an embodiment of the invention, the oblique line is a pair of diagonal lines of the square block; the bright block and the dark block are both triangular.

Compared with the prior art, the present invention can reduce the sawtooth phenomenon of the picture lines by the configuration of the pixel unit, so that the picture quality displayed by the liquid crystal display is better. DRAWINGS

FIG. 1 is a schematic diagram showing the distribution of pixel units of a conventional liquid crystal panel.

2 is a schematic view showing the pixel unit of FIG. 1 showing a diagonal line.

3 is a schematic diagram showing the distribution of pixel units of a liquid crystal display according to a preferred embodiment of the present invention.

4 is a schematic diagram showing the composition of a pixel unit in accordance with a preferred embodiment of the present invention. FIG. 5 is a schematic diagram showing the pixel unit of FIG. 3 displaying a diagonal line. detailed description

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. Furthermore, the directional terms mentioned in the present invention are, for example, "upper", "lower", "before", "after", "left", "right", "inside", "outside", "side", etc. Just refer to the direction of the additional schema. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention.

Referring to FIG. 3, FIG. 3 discloses a pixel unit distribution of a liquid crystal display according to a preferred embodiment of the present invention. A liquid crystal display includes a display area 10 and a plurality of pixel units 11, and the pixel unit 11 is arranged in the display area 10 in a two-dimensional array. With reference to FIG. 4, FIG. 4 discloses a composition of the pixel unit 11, each of the pixel units 11 being formed by a plurality of sub-pixel units being side by side. In this embodiment, the plurality of sub-pixel units are respectively a first The sub-pixel unit 110, a second sub-pixel unit 111 and a third sub-pixel unit 112 respectively control the display of the three primary colors of red, green and blue. Each of the sub-pixel units is a square block, such as a rectangular block or a square block. The square block is divided into a bright block 100A and a dark block 100B along a diagonal line 100. The bright block 100A and the dark block 100B may be distinguished according to the direction of the liquid crystal alignment. The oblique line 100 may be a pair of diagonal lines of the square block, such that the bright block 100A and the dark block 100B are both triangular.

Moreover, the oblique line 100 distinguishing the bright block 100A from the dark block 100B on each of the sub-pixel units is not parallel to the oblique line 100 of the adjacent sub-pixel unit. Therefore, if the diagonal line 100 is a diagonal line of the sub-pixel unit, as shown in FIG. 3 and FIG. 4, it can be seen that the bright block 100A of each of the sub-pixel units is adjacent thereto. The dark blocks 100B of the sub-pixel units are all aligned to each other or aligned with each other, or they may be mutually symmetrical. For example, viewed from the first sub-pixel unit 110, the first sub-pixel unit The bright block 100A of 110 and the dark block 100B of the second sub-pixel 111 correspond to each other. When viewed from the second sub-pixel unit 111, the bright block 100A of the second sub-pixel unit 111 not only corresponds to the dark block 100B of the first sub-pixel 110, but also to the third sub-pixel. Dark block 100B of unit 112.

With further reference to FIG. 5, when the liquid crystal display displays a thin line, it can be seen that the pixel unit 1 that displays black to form the oblique line is less affected by the dark area 110B of the adjacent pixel unit 11 The feeling of becoming larger in the visual direction also reduces the sawtooth effect of the oblique line.

As described above, although the conventional liquid crystal display can horizontally cut the sub-pixel unit to achieve the purpose of improving the viewing angle phenomenon, as the size of the liquid crystal panel increases, the existing structure is also horizontally cut. The liquid crystal display of the present invention and its pixel unit are cut into the bright block 110A by oblique lines in each sub-pixel unit of the pixel unit 11 by a disadvantage that the sawtoothing phenomenon is more obvious when the oblique line is displayed. And the dark block 110B, which can effectively reduce the sawtooth phenomenon, thereby improving the image quality displayed by the large-size liquid crystal panel.

The present invention has been described by the above related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. Rather, modifications and equivalent arrangements are intended to be included within the scope of the invention.

Claims

Rights request

A liquid crystal display, comprising: a plurality of pixel units, wherein the plurality of pixel units are arranged in a two-dimensional array in a display area, each of the pixel units being included a sub-pixel unit, each of the pixel units being composed of a plurality of the plurality of sub-pixel units being side by side; the plurality of sub-pixel units being a first sub-pixel unit, a second sub-pixel unit, and a third a sub-pixel unit, respectively controlling display of three primary colors of red, green, and blue; each of the sub-pixel units is a square block, and the square block is divided into a bright block and a dark block along a diagonal line. The oblique line is a pair of diagonal lines of the square block; the bright block and the dark block are both triangular; wherein the bright block of each of the sub-pixel units and its adjacent sub-pixel The dark blocks correspond to each other.

2. A liquid crystal display, comprising: a plurality of pixel units, wherein the plurality of pixel units are arranged in a two-dimensional array in a display area, each of the pixel units being included a sub-pixel unit, each of the sub-pixel units being a square block, wherein the square block is divided into a bright block and a dark block along a diagonal line, wherein each of the sub-pixel units is bright The block corresponds to a dark block of its neighboring sub-pixels.

3. The pixel unit of claim 2, wherein each of the pixel units is composed of a plurality of the plurality of sub-pixel units side by side; the plurality of sub-pixel units are respectively a first sub-pixel The unit, a second sub-pixel unit and a third sub-pixel unit respectively control display of three primary colors of red, green and blue.

4. The liquid crystal display according to claim 2, wherein the plurality of sub-pixel units are side by side to constitute the pixel unit.

5. The liquid crystal display according to claim 2, wherein the oblique line is a pair of diagonal lines of the square block; the bright block and the dark block are both triangular.

6. The liquid crystal display according to claim 4, wherein the oblique line is a pair of diagonal lines of the square block; the bright block and the dark block are both triangular.

7. The liquid crystal display according to claim 2, wherein the bright block and the dark block are distinguished according to a direction in which the liquid crystal is aligned.

8. The liquid crystal display according to claim 3, wherein the bright block and the dark block are distinguished according to a direction in which the liquid crystal is aligned.

9. The liquid crystal display according to claim 4, wherein the bright block and the dark block are distinguished according to a direction in which the liquid crystal is aligned.

The liquid crystal display according to claim 5, wherein the bright block and the dark block are distinguished according to different directions of liquid crystal alignment.

The liquid crystal display according to claim 6, wherein the bright block and the dark block are distinguished according to different directions of liquid crystal alignment.

12. A pixel unit, wherein: the pixel unit comprises a plurality of sub-pixel units, each of the sub-pixel units is a square block, and the square block is divided into a bright block along a diagonal line. And a dark block, wherein the bright block of each of the sub-pixel units and the dark block of the adjacent sub-pixels thereof correspond to each other.

The pixel unit according to claim 12, wherein: the plurality of sub-pixel units are a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, respectively controlling red and green And the display of the blue primary colors.

The pixel unit according to claim 12, wherein the plurality of sub-pixel units are side by side to constitute the pixel unit.

The pixel unit according to claim 13, wherein the plurality of sub-pixel units are side by side to constitute the pixel unit.

The pixel unit according to claim 12, wherein: the oblique line is a pair of diagonal lines of the square block; and the bright block and the dark block are both triangular.

The pixel unit according to claim 13, wherein: the oblique line is a pair of diagonal lines of the square block; and the bright block and the dark block are both triangular. The pixel unit according to claim 14, wherein: the oblique line is a pair of diagonal lines of the square block; and the bright block and the dark block are both triangular.

The pixel unit according to claim 15, wherein: the oblique line is a pair of diagonal lines of the square block; and the bright block and the dark block are both triangular.

The pixel unit according to claim 12, wherein: the bright block and the dark block are distinguished according to a direction in which the liquid crystal is aligned.