WO2020098052A1

WO2020098052A1 - Pixel structure and display panel

Info

Publication number: WO2020098052A1
Application number: PCT/CN2018/121757
Authority: WO
Inventors: 赵文勤
Original assignee: 惠科股份有限公司
Priority date: 2018-11-14
Filing date: 2019-01-09
Publication date: 2020-05-22
Also published as: CN109212857A

Abstract

Disclosed are a pixel structure and a display panel. The pixel structure comprises a plurality of primary pixels (100) and a plurality of secondary pixels (200). Any one of the primary pixels (100) comprises a plurality of primary sub-pixels, and any one of the secondary pixels (200) comprises a plurality of secondary sub-pixels. The primary pixels (100) and the secondary pixels (200) are staggered to form an array, and the data voltage of the primary pixels (100) is different from the data voltage of the secondary pixels (200).

Description

Pixel structure and display panel

This application requires priority to be submitted to the Chinese Patent Office on November 14, 2018, with the application number 201811353493.1 and the Chinese patent application titled "Pixel Structure and Display Panel".

Technical field

The present application relates to the design of a pixel structure, in particular to a pixel structure and a display panel.

Background technique

The statements here only provide background information related to the present application and do not necessarily constitute prior art.

With the development of display technology, various liquid crystal display devices (such as liquid crystal televisions, etc.) are widely used. The display panel is usually provided with a plurality of light-emitting pixels arranged according to a certain rule, and the display needs of the display panel are realized by the orderly light-emitting of the light-emitting pixels. The pixel structure of a light-emitting pixel is generally such that sub-pixels of various colors are alternately arranged and scanned by a scan signal, and the data signal is powered to realize light emission of the sub-pixels.

When the display panel is working, the display quality of the liquid crystal display device is easily affected by the viewing angle, and the color shift phenomenon is likely to occur when viewing at a large viewing angle.

Application content

According to various embodiments of the present application, a pixel structure and a display panel that can improve the color shift phenomenon when a liquid crystal display device is viewed at a large viewing angle are provided.

A pixel structure, including:

A plurality of main pixels, any one of the main pixels includes four main sub-pixels, and the four main sub-pixels are arranged in two rows and two columns;

A plurality of auxiliary pixels, any auxiliary pixel includes four auxiliary sub-pixels, and the four auxiliary sub-pixels are arranged in two rows and two columns;

The main pixels and the auxiliary pixels are staggered to form an array, and the data voltage of the main pixels is different from the data voltage of the auxiliary pixels.

In one of the embodiments, the pixel structure further includes:

A plurality of data lines, including a plurality of first voltage data lines and a plurality of second voltage data lines, the voltage of the first voltage data line is different from the voltage of the second voltage data line;

A plurality of scanning lines are arranged to cross the data lines;

The main sub-pixel is connected to the first voltage data line and the scan line; the auxiliary sub-pixel is connected to the second voltage data line and the scan line.

In one of the embodiments, the voltages of the first voltage data line and the second voltage data line are different.

In one of the embodiments, the voltage of the first voltage data line is greater than the voltage of the second voltage data line.

In one of the embodiments, the main pixels and the auxiliary pixels are alternately arranged along the first direction of the array.

In one embodiment, the main pixels and the auxiliary pixels are alternately arranged along the second direction of the array.

In one of the embodiments, any one of the main pixels includes a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.

In one of the embodiments, the any sub-pixel includes a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.

In one of the embodiments, in any of the main pixels, the red sub-pixel, the green sub-pixel, the blue sub-pixel and the white sub-pixel are arranged in two rows and two columns.

In one of the embodiments, in any of the auxiliary pixels, the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel are arranged in two rows and two columns.

In one embodiment, along the second direction of the array, the arrangement rule of the main sub-pixels in the main pixel is the same as the arrangement rule of the auxiliary sub-pixels in the auxiliary pixel.

In one of the embodiments, any one of the main sub-pixel and the auxiliary sub-pixel corresponding to the main sub-pixel are separated by one main sub-pixel or one auxiliary sub-pixel.

In one of the embodiments, the sub-pixel corresponding to the main sub-pixel refers to the sub-pixel having the same color as the main sub-pixel and the closest distance.

In one of the embodiments, the shape of the main sub-pixel is a square with the same length and width.

In one of the embodiments, the shape of the sub-pixel is a square with the same length and width.

In one of the embodiments, the main sub-pixel and the auxiliary sub-pixel have the same size.

A display panel, including:

Multiple auxiliary pixels, any auxiliary pixel includes four auxiliary sub-pixels, and the four auxiliary sub-pixels are arranged in two rows and two columns;

In one of the embodiments, the display panel further includes:

A plurality of scanning lines are arranged to cross the data lines;

In one embodiment, the display panel further includes a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate;

The plurality of main pixels, the plurality of auxiliary pixels, the plurality of data lines, and the plurality of scan lines are disposed on the first substrate.

A display device, including:

The details of one or more embodiments of the application are set forth in the drawings and description below. Other features, objects, and advantages of this application will become apparent from the description, drawings, and claims.

BRIEF DESCRIPTION

In order to better describe and explain the embodiments or examples of those inventions disclosed herein, reference may be made to one or more drawings. The additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed inventions, the presently described embodiments or examples, and the best mode currently understood of these inventions.

FIG. 1 is a schematic diagram of an arrangement of pixel structures in an embodiment of the present application.

FIG. 2 is a schematic diagram of the arrangement and circuit relationship of pixel structures in an embodiment of the present application.

FIG. 3 is a schematic diagram of arrangement and circuit relationship of sub-pixels in an embodiment of the present application.

FIG. 4 is a schematic diagram of arrangement and circuit relationship of sub-pixels in another embodiment of the present application.

5 is a schematic structural diagram of a display panel in an embodiment of the present application.

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be described in further detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

The present application provides a pixel structure, as shown in FIG. 1, including a plurality of main pixels 100 and a plurality of auxiliary pixels 200.

Among them, the pixel is the smallest repeating structure composed of several sub-pixels. Any sub-pixel may be one of an R (Red, red) sub-pixel, a G (Green, green) sub-pixel, a B (Blue, blue) sub-pixel, and a W (White, white) sub-pixel. After multiple sub-pixels are arranged according to certain rules, the smallest repeating structure constitutes a pixel. This is a common technical method in the art and will not be repeated here.

Pixels are generally driven by data voltages to emit light. In this application, two different data voltages of different sizes are used to drive different pixels. Therefore, in order to distinguish pixels having different data voltage sizes, pixels driven by data voltages of the same size are named main pixels 100, and pixels driven by data voltages of another size are named secondary pixels 200. For convenience of description, in all embodiments of the present application, pixels with a larger data voltage are the main pixels 100, and pixels with a smaller data voltage are the auxiliary pixels 200. The sub-pixels constituting the main pixel 100 are named main sub-pixels; the sub-pixels constituting the auxiliary pixel 200 are named sub-sub-pixels.

In this embodiment, the main pixels 100 and the auxiliary pixels 200 are staggered to form an array, as shown in FIG. 1. When the pixel structure emits light, since the data voltage driving the main pixel 100 is large and the data voltage driving the auxiliary pixel 200 is small, the main pixel 100 is bright and the auxiliary pixel 200 is dark. Therefore, the pixels forming the pixel structure are arranged alternately in light and dark. Meanwhile, any main pixel 100 includes four main sub-pixels, and the four main sub-pixels are arranged in two rows and two columns. Any sub-pixel 200 includes four sub-pixels, and the four sub-pixels are arranged in two rows and two columns. When the pixel structure emits light, the contrast between the main pixels 100 and the auxiliary pixels 200 that are staggered and have different brightness levels is large, which can solve the problem of color shift phenomenon in a display panel using the pixel structure at a large viewing angle Improve its display effect. At the same time, for a pixel, the four sub-pixels are arranged in two rows and two columns, which can make the sub-pixels driven by the same data voltage more concentrated, thereby improving its display effect.

It should be understood that the main pixel 100 and the auxiliary pixel 200 are only named to distinguish the size of the data voltage. In other different embodiments, the pixel with the smaller data voltage may also be named the main pixel 100, and the one with the larger data voltage The pixel is named sub-pixel 200. This change can still solve the color shift problem by staggering the arrangement of pixels in light and dark. Therefore, it should also be understood that it is within the protection scope of the present application.

In one embodiment, as shown in FIG. 2, the pixel structure of the present application further includes multiple data lines and multiple scan lines 21.

The data line is used to provide a data voltage for the pixel. Based on the data voltages of different sizes in the present application, the data line includes a first voltage data line 11 and a second voltage data line 12. The first voltage data line 11 is connected to the main sub-pixel and is used to provide a data voltage for the main sub-pixel. The second voltage data line 12 is connected to the auxiliary sub-pixel, and is used to provide a data voltage for the auxiliary sub-pixel. Since the data voltage of the main pixel 100 is greater than the data voltage of the sub-pixel, the voltage of the first voltage data line 11 is greater than the voltage of the second voltage data line 12.

The scanning line 21 and the data line are arranged to cross, and the pixels are connected to the intersection of the scanning line 21 and the data line. The scan line 21 is connected to the main pixel 100 and the sub-pixel 200, and is used to turn on the driving circuit of the pixel. When a sub-pixel in the pixel structure needs to emit light, the scan line 21 corresponding to the sub-pixel is energized, so that the driving circuit of the sub-pixel is turned on. Then, the data line corresponding to the sub-pixel provides a data voltage to the sub-pixel, thereby causing the sub-pixel to emit light.

In one embodiment, as shown in FIG. 2, in this pixel structure, the main pixels 100 and the auxiliary pixels 200 are alternately arranged along the first direction and the second direction of the array.

In this embodiment, the first direction of the array may refer to the row direction of the pixel structure, and the second direction of the array may refer to the column direction of the pixel structure. The first direction is perpendicular to the second direction. In other embodiments, the first direction of the array may also refer to the column direction of the pixel structure, and the second direction of the array may also refer to the row direction of the pixel structure. In this pixel structure, the main pixels 100 and the auxiliary pixels 200 are alternately arranged in the first direction and the second direction of the array, so that any adjacent pixels of the main pixels 100 in the first direction and the second direction are auxiliary For the pixel 200, the adjacent pixels in the first direction and the second direction of any auxiliary pixel 200 are the main pixels 100. A sub-pixel 200 closest to the main pixel 100 is called a sub-pixel 200 corresponding to the main pixel 100; a sub-pixel closest to the main sub-pixel and the same color is called a sub-pixel corresponding to the main sub-pixel. In other words, any main pixel 100 has a sub-pixel 200 corresponding to it, and any main sub-pixel has a sub-pixel corresponding to it. The pixel structure can better improve the contrast between adjacent pixels, solve the problem of color shift of the display panel under a large viewing angle, and improve the display effect.

In one embodiment, as shown in FIG. 3, each main pixel 100 includes an R sub-pixel, a G sub-pixel, a B sub-pixel, and a W sub-pixel. Each sub-pixel 200 also includes an R sub-pixel, a G sub-pixel, a B sub-pixel, and a W sub-pixel.

Optionally, in this embodiment, the four main sub-pixels are arranged in two rows and two columns, and the four auxiliary pixels 200 are also arranged in two rows and two columns. Meanwhile, the arrangement rule of the four main sub-pixels in the main pixel 100 is the same as the arrangement rule of the four auxiliary sub-pixels in the auxiliary pixel 200. Compared with the horizontal or vertical arrangement of the sub-pixels in the pixel, the arrangement structure of the main pixel 100 and the auxiliary pixel 200 can make the sub-pixels driven by the same data voltage more concentrated, avoiding bright and dark stripes when the pixel structure emits light, thereby improving display effect. At the same time, this structure can also solve the problem of color shift of the display panel, and avoid the color shift of the positive viewing angle caused by the unequal distance between the different main sub-pixels and the corresponding sub-pixels, thereby improving The display effect of the display panel.

In a specific embodiment, as shown in FIG. 4, any main sub-pixel and an adjacent sub-pixel of the same color are separated by one main sub-pixel or auxiliary sub-pixel. In other words, any main sub-pixel is separated from its corresponding sub-pixel by one sub-pixel.

For example, in FIG. 4, for the main pixel 100 in the first row and first column, it is composed of an R1 subpixel, a G1 subpixel, a B1 subpixel, and a W1 subpixel. The auxiliary subpixel corresponding to the R1 subpixel is R2; the auxiliary subpixel corresponding to the G1 subpixel is G2; the auxiliary subpixel corresponding to the B1 subpixel is B2; and the auxiliary subpixel corresponding to the W1 subpixel is W2. In this embodiment, the R1 sub-pixel and the R2 sub-pixel are separated by a B1 sub-pixel. The G1 sub-pixel and the G2 sub-pixel are separated by a W1 sub-pixel. The B1 sub-pixel and the B2 sub-pixel are separated by one R2 sub-pixel. The W1 sub-pixel and the W2 sub-pixel are separated by one G2 sub-pixel.

For the main pixel 100 in the third row and third column, it is composed of an R3 subpixel, a G3 subpixel, a B3 subpixel, and a W3 subpixel. The auxiliary sub-pixel corresponding to the R3 sub-pixel is R4; the auxiliary sub-pixel corresponding to the G3 sub-pixel is G4; the auxiliary sub-pixel corresponding to the B3 sub-pixel is B4; and the auxiliary sub-pixel corresponding to the W3 sub-pixel is W4. In this embodiment, the R3 sub-pixel and the R4 sub-pixel are separated by a B4 sub-pixel. The G3 sub-pixel and the G4 sub-pixel are separated by a W4 sub-pixel. The B3 sub-pixel and the B4 sub-pixel are separated by an R3 sub-pixel. The W3 sub-pixel and the W4 sub-pixel are separated by one G3 sub-pixel.

In the above pixel structure, any main sub-pixel and an adjacent sub-pixel of the same color are separated by one sub-pixel, which can avoid the positive viewing angle caused by the unequal distance between the different main sub-pixel and the corresponding sub-pixel The problem of color shift occurs, improving the display effect of the display panel.

In one embodiment, any main sub-pixel and any auxiliary sub-pixel have the same size and are square with equal length and width.

When the size of the main sub-pixel is the same as that of the auxiliary sub-pixel and the sub-pixels are square, when any main sub-pixel is separated from the corresponding sub-pixel by one sub-pixel, then any main sub-pixel and its corresponding sub-pixel The distance between them is equal. At this time, while solving the problem of large-vision role deviation, it can completely avoid the problem of color shift in the positive viewing angle caused by the unequal distance between different main sub-pixels and the corresponding sub-pixels, and improve the display panel effect.

The present application also provides a display panel, as shown in FIG. 5, including a first substrate 31, a second substrate 32 and a liquid crystal layer 33 sandwiched between the first substrate 31 and the second substrate 32. The first substrate 31 may be an array substrate, and the second substrate 32 may be a color filter substrate. A pixel structure 34 is provided on the first substrate 31, and the pixel structure 34 is the pixel structure described in any of the above embodiments.

Specifically, the pixel structure includes multiple data lines, multiple scan lines, multiple main pixels, and multiple auxiliary pixels.

Among them, multiple data lines are used to provide data voltages for pixels. The data line includes a first voltage data line and a second voltage data line, and the magnitude of the data voltage of the first voltage data line is different from the magnitude of the data voltage of the second voltage data line.

Multiple scan lines and multiple data lines are arranged crosswise. The sub-pixel of one pixel is connected to a crossing point of the scanning line and the data line.

The main pixel is composed of several main sub-pixels and is the smallest repeating structure of the main sub-pixel. Any main sub-pixel is connected to a crossing point of the first voltage data line and the scanning line to be scanned by the scanning line, and the first voltage data line is driven.

The sub-pixel is composed of several sub-sub-pixels, and is the smallest repeating structure of the sub-sub-pixel. Any sub-pixel is connected to a crossing point of the second voltage data line and the scanning line to be scanned by the scanning line, and the second voltage data line is driven. The auxiliary pixels and the main pixels are alternately arranged to form an array.

The above-mentioned display panel has main pixels and auxiliary pixels arranged alternately. Since the data voltages of the main pixel and the auxiliary pixel are different, the main pixel and the auxiliary pixel have different levels of light and dark. When the pixel structure emits light, the contrast between the main pixels and the auxiliary pixels arranged in a staggered manner and having different light and dark levels is large, which can solve the problem of color shift in a large viewing angle of the display panel and improve the display effect.

The present application also provides a display device including the display panel in any one of the above embodiments.

Specifically, the pixel structure of the display device includes multiple data lines, multiple scan lines, multiple main pixels, and multiple auxiliary pixels.

The sub-pixel is composed of several sub-sub-pixels, and is the smallest repeating structure of the sub-sub-pixel. Any sub-pixel is connected to a crossing point of the second voltage data line and the scan line to be scanned by the scan line and driven by the second voltage data line. The auxiliary pixels and the main pixels are alternately arranged to form an array.

In the display device, the pixel structure of the pixel structure is staggered when emitting light and the contrast between the main pixel and the auxiliary pixel is large, which can solve the problem of color shift phenomenon under a large viewing angle of the display device and improve the display effect.

The technical features of the above embodiments can be arbitrarily combined. To simplify the description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, all It is considered to be within the scope of this description.

The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all fall within the protection scope of the present application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

A pixel structure, including:

A plurality of main pixels, any one of the main pixels includes four main sub-pixels, and the four main sub-pixels are arranged in two rows and two columns;

A plurality of auxiliary pixels, any auxiliary pixel includes four auxiliary sub-pixels, and the four auxiliary sub-pixels are arranged in two rows and two columns;

The main pixels and the auxiliary pixels are staggered to form an array, and the data voltage of the main pixels is different from the data voltage of the auxiliary pixels.
The pixel structure according to claim 1, further comprising:

A plurality of data lines, including a plurality of first voltage data lines and a plurality of second voltage data lines, the voltage of the first voltage data line is different from the voltage of the second voltage data line;

A plurality of scanning lines are arranged to cross the data lines;

The main sub-pixel is connected to the first voltage data line and the scan line; the auxiliary sub-pixel is connected to the second voltage data line and the scan line.
The pixel structure according to claim 2, wherein the voltages of the first voltage data line and the second voltage data line are different.
The pixel structure of claim 3, wherein the voltage of the first voltage data line is greater than the voltage of the second voltage data line.
The pixel structure according to claim 1, wherein the main pixels and the auxiliary pixels are alternately arranged along the first direction of the array.
The pixel structure according to claim 5, wherein the main pixels and the auxiliary pixels are alternately arranged along the second direction of the array.
The pixel structure according to claim 6, wherein any one of the main pixels includes a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.
The pixel structure according to claim 7, wherein the any sub-pixel includes a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.
The pixel structure according to claim 8, wherein in any of the main pixels, the red sub-pixel, the green sub-pixel, the blue sub-pixel and the white sub-pixel are arranged in two rows and two columns.
The pixel structure according to claim 9, wherein in any of the auxiliary pixels, the red sub-pixel, the green sub-pixel, the blue sub-pixel and the white sub-pixel are arranged in two rows and two columns.
The pixel structure of claim 10, wherein, along the second direction of the array, the arrangement rule of the main sub-pixels in the main pixel is the same as the arrangement rule of the auxiliary sub-pixels in the auxiliary pixel.
The pixel structure according to claim 11, wherein any one of the main sub-pixel and the auxiliary sub-pixel corresponding to the main sub-pixel is separated by one main sub-pixel or one auxiliary sub-pixel.
The pixel structure according to claim 12, wherein the sub-pixel corresponding to the main sub-pixel refers to a sub-pixel having the same color as the main sub-pixel and the closest distance.
The pixel structure according to claim 13, wherein the main sub-pixel has a square shape with an equal length and width.
The pixel structure according to claim 14, wherein the shape of the auxiliary sub-pixels is a square with equal length and width.
The pixel structure according to claim 15, wherein the main sub-pixel and the auxiliary sub-pixel have the same size.
A display panel, including:

A plurality of main pixels, any one of the main pixels includes four main sub-pixels, and the four main sub-pixels are arranged in two rows and two columns;

A plurality of auxiliary pixels, any auxiliary pixel includes four auxiliary sub-pixels, and the four auxiliary sub-pixels are arranged in two rows and two columns;

The main pixels and the auxiliary pixels are staggered to form an array, and the data voltage of the main pixels is different from the data voltage of the auxiliary pixels.
The display panel according to claim 17, further comprising:

A plurality of data lines, including a plurality of first voltage data lines and a plurality of second voltage data lines, the voltage of the first voltage data line is different from the voltage of the second voltage data line;

A plurality of scanning lines are arranged to cross the data lines;

The main sub-pixel is connected to the first voltage data line and the scan line; the auxiliary sub-pixel is connected to the second voltage data line and the scan line.
The display panel according to claim 18, further comprising a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate;

The plurality of main pixels, the plurality of auxiliary pixels, the plurality of data lines, and the plurality of scan lines are disposed on the first substrate.
A display device, including:

A plurality of main pixels, any one of the main pixels includes four main sub-pixels, and the four main sub-pixels are arranged in two rows and two columns;

A plurality of auxiliary pixels, any auxiliary pixel includes four auxiliary sub-pixels, and the four auxiliary sub-pixels are arranged in two rows and two columns;

The main pixels and the auxiliary pixels are staggered to form an array, and the data voltage of the main pixels is different from the data voltage of the auxiliary pixels.