CN220603806U

CN220603806U - Blue edge prevention liquid crystal display screen

Info

Publication number: CN220603806U
Application number: CN202321977469.1U
Authority: CN
Inventors: 马一
Original assignee: Fujian Huajiacai Co Ltd
Current assignee: Fujian Huajiacai Co Ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-03-15
Anticipated expiration: 2033-07-26

Abstract

A blue edge protected liquid crystal display screen comprising: a color film substrate, a thin film transistor substrate, and a liquid crystal sandwiched between the color film substrate and the thin film transistor substrate; the color film substrate comprises: a glass substrate, a pixel region disposed on the glass substrate, and an OC layer disposed over the pixel region; the pixel region includes: the middle pixel area and the edge pixel area around the middle pixel area, each pixel in the pixel area includes: red, green and blue sub-pixel units; the color resistance film thickness of the blue sub-pixel units in the middle pixel area is equal; the color resist film thickness of the blue sub-pixel unit of the edge pixel region is thinner as it is closer to the edge. According to the utility model, the blue sub-pixel film thickness at the edge of the panel is adjusted, so that the proportion of blue light is reduced, and the blue light at the edge of the panel can be reduced to improve the blue problem.

Description

Blue edge prevention liquid crystal display screen

Technical Field

The utility model belongs to the technical field of liquid crystal display devices, and particularly relates to a blue edge prevention liquid crystal display screen.

Background

The TFT-LCD is an inactive light emitting device, and its color display mode is: the backlight module provides a white light source, the color filter is utilized to respectively generate three primary colors of red, green and blue, and the TFT array is utilized to adjust the voltage applied to the liquid crystal so as to change the proportion of the three primary colors, and finally a color display picture is generated.

With the continuous development of technology, consumers have increasingly higher requirements on the picture quality of display devices, and the requirements on panels with high color saturation have gradually increased. The color conversion technology is to use a color conversion film synthesized by organic molecular fluorescent dye, and blue light is converted into red light and green light by using a blue LED backlight source when Lan Guangtong is out of date, and the red light and the green light are mixed to form white light, so that the color gamut of the panel is greatly improved. In the present stage, although the color conversion technology can improve the image quality and the color gamut of the display panel device, blue edges appear around the panel due to the fact that blue light is not completely converted in the backlight or is too strong at the edge, and the blue color of the blue edges is more obvious towards the edge, so that the overall picture uniformity of the display is affected.

Disclosure of Invention

The utility model aims to provide a blue edge prevention liquid crystal display screen.

The utility model is realized in the following way:

a blue edge protected liquid crystal display screen comprising: a color film substrate, a thin film transistor substrate and liquid crystal sandwiched between the color film substrate and the thin film transistor substrate; the color film substrate comprises: a glass substrate, a pixel region disposed on the glass substrate, and an OC layer disposed over the pixel region; the pixel region includes: a middle pixel region and an edge pixel region surrounding the middle pixel region, each pixel in the pixel region comprising: red, green and blue sub-pixel units;

the color resistance film thickness of the blue sub-pixel units of the middle pixel area is equal; the color resistance film thickness of the blue sub-pixel unit of the edge pixel area is thinner as the color resistance film thickness is closer to the edge.

The utility model has the advantages that: the blue light proportion of the panel edge can be reduced by adjusting the blue sub-pixel film thickness at the panel edge, the brightness of the edge can be increased after the blue sub-pixel film thickness is thinned, the film thickness is thinned along with the blue sub-pixel film thickness towards the place where the blue edge is more obvious at the edge, the color gamut of the module is improved, and meanwhile the light of the panel is more uniform to solve the problem of blue edge.

Drawings

The utility model will be further described with reference to the accompanying drawings, in conjunction with examples.

FIG. 1 is a schematic diagram of a blue edge position of a prior art LCD screen.

FIG. 2 is a schematic diagram of a pixel area of a prior art LCD screen.

Fig. 3 is a cross-sectional view of a prior art liquid crystal display screen.

Fig. 4 is a cross-sectional view of a liquid crystal display screen of the present utility model.

Fig. 5 is a cross-sectional view of a liquid crystal display screen of the present utility model near an edge area.

Detailed Description

The existing backlight module with the blue light backlight, the quantum dot film and the color conversion film can effectively improve the color gamut of the panel and the image quality, but blue edge phenomenon can occur on the periphery of the panel due to incomplete conversion of blue light when the backlight is used. As shown in fig. 1, the display area of the liquid crystal display panel 100 includes a central pixel area 102 (area where the display effect is normal) and an edge pixel area 101 (area affected by blue) surrounding the periphery of the central pixel area 102.

As shown in fig. 3, the conventional liquid crystal display screen includes: a color film substrate 1, a thin film transistor substrate 2, and a liquid crystal (Cellgap) sandwiched between the color film substrate 1 and the thin film transistor substrate 2; the color film substrate 1 includes: the glass substrate 11, the pixel region 12 arranged on the glass substrate 11 and the OC (overcoater) layer 13 arranged above the pixel region, wherein the OC layer 13 is a flat layer, is made of an organic transparent resin material and has extremely high light transmittance of more than 95%; the pixel region includes: a middle pixel region and an edge pixel region surrounding the middle pixel region, each pixel in the pixel region comprising: red, green and blue sub-pixel units. FIG. 2 is a schematic diagram of a pixel area of a liquid crystal display screen.

The present utility model provides a blue edge preventing liquid crystal display screen, as shown in fig. 4 to 5, comprising: a color film substrate 1, a thin film transistor substrate 2, and liquid crystal sandwiched between the color film substrate 1 and the thin film transistor substrate 2; the color film substrate 1 includes: a glass substrate 11, a pixel region 12 provided on the glass substrate, and an OC layer 13 provided above the pixel region; the pixel region 12 includes: a middle pixel region and an edge pixel region surrounding the middle pixel region, each pixel in the pixel region comprising: red, green and blue sub-pixel units; the color resistance film thickness of the blue sub-pixel units in the middle pixel area is equal; the color resist film thickness of the blue sub-pixel unit of the edge pixel region is thinner as it is closer to the edge. As shown in fig. 5, d1> d2> d3> d4.

According to the utility model, the blue light proportion of the panel edge can be reduced by adjusting the blue sub-pixel film thickness at the panel edge, the brightness at the edge can be increased after the blue sub-pixel film thickness is reduced, the film thickness is reduced along with the blue sub-pixel film thickness towards the place where the blue edge is more obvious at the edge, the color gamut of the module is improved, and meanwhile, the light of the panel is more uniform to solve the blue edge problem. .

The above-described embodiments and drawings are not intended to limit the form or pattern of the present utility model, and any appropriate changes or modifications may be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. A blue edge protected liquid crystal display screen comprising: a color film substrate, a thin film transistor substrate and liquid crystal sandwiched between the color film substrate and the thin film transistor substrate; the color film substrate comprises: a glass substrate, a pixel region disposed on the glass substrate, and an OC layer disposed over the pixel region; the pixel region includes: a middle pixel region and an edge pixel region surrounding the middle pixel region, each pixel in the pixel region comprising: red, green and blue sub-pixel units;

the method is characterized in that: the color resistance film thickness of the blue sub-pixel units of the middle pixel area is equal; the color resistance film thickness of the blue sub-pixel unit of the edge pixel area is thinner as the color resistance film thickness is closer to the edge.