CN104701354A - Display substrate, display panel and display device - Google Patents

Abstract

The invention provides a display substrate, a display panel and a display device. The display substrate comprises multiple pixel units, each pixel unit comprises multiple colorful sub-pixels and a white sub-pixel, the areas of the multiple colorful sub-pixels are the same, and the area of the white sub-pixel is smaller than that of each colorful sub-pixel. According to the display substrate, the display panel and the display device, the brightness of the white sub-pixel region is reduced through reducing the area of the white sub-pixel region, and the brightness of the white sub-pixel region is almost the same as the brightness of the colorful sub-pixel region, so that the uniformity of the brightness is improved, and the color distortion phenomenon of a display frame is avoided.

Description

A display substrate, display panel and display device

technical field

The present invention relates to the field of display technology, in particular to a display substrate, a display panel and a display device.

Background technique

Currently, in an image display device such as a liquid crystal panel (LCD) and an organic electroluminescent display panel (OLED), a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel are composed of one The pixel unit displays a color image by controlling the gray value of each sub-pixel unit to mix the required display color. Due to the low luminous efficiency of RGB three primary colors, it will restrict the product optimization of display devices composed of RGB three primary colors. Based on this, red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels and white (W) A pixel unit composed of sub-pixel units to improve the luminous efficiency of the RGB display.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a display substrate in RGBW mode in the prior art. In the display substrate, color sub-pixels (red sub-pixel (R), green sub-pixel (G) and blue sub-pixel ( B)) has the same area as the white sub-pixel, since no filter is set in the white sub-pixel area, light will not be lost, so when the area of the color sub-pixel is the same as that of the white sub-pixel, it will cause the white sub-pixel area and The brightness difference of the color sub-pixel area is large, which leads to the distorted color of the displayed picture.

Contents of the invention

In view of this, the present invention provides a display substrate, a display panel and a display device to solve the problem of large brightness difference between the white sub-pixel area and the color sub-pixel area in the existing RGBW display substrate.

In order to solve the above technical problems, the present invention provides a display substrate, including a plurality of pixel units, each of which includes a plurality of color sub-pixels and a white sub-pixel, and the areas of the plurality of color sub-pixels are the same, and It is characterized in that the area of the white sub-pixel is smaller than the area of the color sub-pixel.

Preferably, the sub-pixels in each pixel unit are arranged in a row, and two adjacent pixel units located in the same row form a pixel unit group, wherein two pixels in the pixel unit group The white sub-pixels of the unit are adjacent to each other and jointly occupy the area occupied by one color sub-pixel.

Preferably, the display substrate further includes a plurality of gate lines and data lines, the sub-pixels in the pixel units in the same row are connected to the same gate line, and each of the white sub-pixels is connected to two data lines on both sides thereof. One of the lines is connected.

Preferably, the plurality of color sub-pixels are red sub-pixels, green sub-pixels and blue sub-pixels respectively.

Preferably, the display substrate is an array substrate.

The present invention also provides a display panel, including the above-mentioned display substrate.

The present invention also provides a display device, including the above-mentioned display panel.

The beneficial effects of above-mentioned technical scheme of the present invention are as follows:

By reducing the area of the white sub-pixel area, the brightness of the white sub-pixel area is reduced, so that the brightness of the white sub-pixel and the color sub-pixel area are approximately the same, thereby improving the uniformity of brightness and avoiding color distortion of the displayed picture.

Description of drawings

FIG. 1 is a schematic structural diagram of a display substrate in RGBW mode in the prior art;

FIG. 2 is a schematic structural view of a display substrate according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an enlarged structure of a pixel unit in FIG. 2;

FIG. 4 is a schematic structural view of a display substrate according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of a circuit connection manner of a display substrate according to an embodiment of the present invention.

Detailed ways

In order to solve the problem of large brightness difference between the white sub-pixel area and the color sub-pixel area in the existing RGBW display substrate, an embodiment of the present invention provides a display substrate, including a plurality of pixel units, each of which includes a plurality of color sub-pixels For a sub-pixel and a white sub-pixel, the areas of the plurality of color sub-pixels are the same, and the area of the white sub-pixel is smaller than the area of the color sub-pixel.

That is to say, by reducing the area of the white sub-pixel area, the brightness of the white sub-pixel area is reduced, so that the brightness of the white sub-pixel and the color sub-pixel area are approximately the same, thereby improving the uniformity of brightness and avoiding the color distortion of the display screen .

The ratio of the white sub-pixels to the color sub-pixels can be set according to specific conditions.

The specific implementation manner of the present invention will be further described in detail below with reference to the drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Please refer to FIG. 2 and FIG. 3. FIG. 2 is a schematic structural view of a display substrate according to an embodiment of the present invention. FIG. 3 is an enlarged schematic structural view of the pixel unit in FIG. The pixel unit includes a plurality of color sub-pixels (R, G, N) and a white sub-pixel (W). Two adjacent pixel units located in the same row form a pixel unit group, wherein the white sub-pixels of the two pixel units in the pixel unit group are adjacent to each other and jointly occupy one of the color sub-pixels. area. The areas of the plurality of color sub-pixels are the same, and the area of the white sub-pixel is approximately 1/2 of the area of the color sub-pixels.

This structure can make the distribution of the sub-pixels uniform and save the space of the display panel.

The display substrate in the embodiment of the present invention further includes a plurality of gate lines and data lines, wherein the gate lines and data lines are intersected and insulated, and define a plurality of sub-pixel regions, and thin film transistors are also arranged in the sub-pixel regions and the pixel electrode, the gate of the thin film transistor is connected to the gate line, the source is connected to the data line, and the drain is connected to the pixel electrode. Wherein, the sub-pixels (white sub-pixels and color sub-pixels) in the pixel units in the same row are connected to the same gate line, and each white sub-pixel is connected to one of the two data lines on both sides thereof.

Please refer to FIG. 5 , which is a schematic diagram of a circuit connection manner of a display substrate according to an embodiment of the present invention. It can be seen from the figure that the two white sub-pixels W1 and W2 in the same pixel unit group are both connected to the gate line Gate1, the data line Data4 and the data line Date5 are located on both sides of the white sub-pixel W1 and W2 respectively, and the white sub-pixel W1 It is connected to the data line Data5, and the white sub-pixel W2 is connected to the data line Date4.

In the above-mentioned embodiments, the sub-pixels in each pixel unit are arranged in rows. In other embodiments of the present invention, the sub-pixels can also be arranged in columns, as shown in FIG. Two adjacent pixel units may form a pixel unit group, wherein the white sub-pixels of the two pixel units in the pixel unit group are adjacent to each other and jointly occupy the area occupied by one of the color sub-pixels.

In the above embodiment, the plurality of color sub-pixels are red sub-pixels, green sub-pixels and blue sub-pixels respectively. Of course, in other embodiments of the present invention, the color sub-pixels may also be of other colors, and the number of color sub-pixels is not limited to three.

The display substrate in the above embodiments is an array substrate.

The present invention also provides a display panel, including the above-mentioned display substrate.

The display substrate is an array substrate, and the display panel further includes a color filter substrate boxed with the array substrate.

The present invention also provides a display device, including the above-mentioned display panel.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (7)

1. A display substrate, comprising a plurality of pixel units, each of which includes a plurality of color sub-pixels and a white sub-pixel, and the areas of the plurality of color sub-pixels are the same, characterized in that the white sub-pixels The area of the pixel is smaller than the area of the color sub-pixel. 2. The display substrate according to claim 1, wherein the sub-pixels in each pixel unit are arranged in rows, and two adjacent pixel units in the same row form a pixel unit group , wherein, the white sub-pixels of the two pixel units in the pixel unit group are adjacent to each other and jointly occupy an area occupied by one of the color sub-pixels. 3. The display substrate according to claim 2, characterized in that the display substrate further comprises a plurality of gate lines and data lines, the sub-pixels in the pixel units in the same row are connected to the same gate line, each The white sub-pixel is connected to one of the two data lines on both sides thereof. 4. The display substrate according to claim 1, wherein the plurality of color sub-pixels are red sub-pixels, green sub-pixels and blue sub-pixels respectively. 5 . The display substrate according to claim 1 , wherein the display substrate is an array substrate. 6. A display panel, comprising the display substrate according to any one of claims 1-5. 7. A display device, comprising the display panel according to claim 6.