Structure for improving LCD (liquid crystal display) edge color difference

Abstract

The utility model discloses a structure for improving LCD (liquid crystal display) edge chromatic aberration, which relates to the technical field of LCD modules, and comprises an LCD and red, green and blue arranged on the LCD, the aperture ratio proportion of the head and the tail of the LCD is 0.97: 0.98: 1, the overall aperture ratio of the LCD is in stepped distribution from inside to frame glue and BM edges, the aperture ratio of red, green and blue pixels at the head and the tail of the LCD is adjusted to increase the blue light transmittance, and the color difference of the blue light is increased. By optimizing the proportion of red, green and blue pixel openings at the head and the tail of the LCD to be close to 0.97: 0.98: 1, the blue light transmittance of the LCD is increased, the overall visual effect of the LCD module can be uniformized and the problem of a yellow band at the edge can be optimized under the conditions that the thickness of a liquid crystal box at the head and the tail of the LCD is slightly high and the backlight head and the backlight tail are slightly yellow, the strict optical effect requirements of customers can be better met, BM width compensation is carried out at the head and the tail of a panel 1 through the LCD BM mask, and the color difference between the head and the tail of the panel 1 is reduced. And adjusting the opening ratio of the red, green, blue and blue pixels so as to adjust the light transmission ratio of the red, green and blue pixels and optimize the problem of an edge yellow band.

Description

Technical Field

[0001] The utility model relates to the technical field of LCD modules, in particular to a structure for improving LCD edge color difference. Background Art

[0002] As end-users of consumer products place increasingly higher demands on the optical effects of display screens, edge visual effects are attracting more and more attention from customers and consumers.

[0003] In the ODF assembly process of medium-sized LCD, due to the change from vacuum environment to atmospheric environment, the edge of the frame glue will have abnormal liquid crystal box thickness due to insufficient support, forming an area at the edge where the box thickness increases from low to high and then returns to the center value, which is called the seesaw effect. Because the transmittance and chromaticity of LCD are related to the thickness of the liquid crystal box, the thicker the liquid crystal box, the higher the transmittance, and the display effect appears darker at the position of low box thickness, and a yellowish band appears at the position of the highest box thickness.

[0004] At the same time, because the LED used in the backlight source is mainly composed of blue chips and yellow phosphors or RG phosphors, due to the large angle direction, the blue chip excites more phosphors, resulting in a yellowish display at a large viewing angle. This is a characteristic of the LED structure. There are mostly large-angle light at the lamp mouth, and it has not been fully mixed with the LGP and the film material, so the backlight effect is prone to appear yellow. Due to the characteristics of light guidance, the wavelength of yellow light is 570-585nm, and the wavelength of blue light is 440-475nm. The yellow light has a stronger transmittance, so the larger the volume of the light guide plate, the more blue light is attenuated, resulting in less blue light than yellow light on the opposite side of the lamp mouth, showing a yellowish trend. In the middle of the display area, the light angle emitted from the LED is smaller, the phosphor activated by the blue light chip is relatively reduced, and the degree of yellowing is weakened. At the same time, the light away from the VA area is fully mixed, the blue light and yellow are neutralized, and the visual effect is white light. Compared with the visual effects at the head and tail, the problem of yellowing at the edge is more prominent.

[0005] In summary, medium-sized LCD modules are prone to yellowing visual effects at the front and back, causing complaints from customers and consumers. Improving edge visual effects is becoming increasingly important for improving product quality. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies of the prior art, the utility model provides a structure for improving LCD edge color difference, solving the technical problem that the yellowing visual effect easily occurs at the head and tail of a medium-sized LCD module.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A structure for improving LCD edge color difference includes an LCD and red, green and blue arranged on the LCD, wherein the opening ratio ratio of the head and tail of the LCD is 0.97:0.98:1, and the overall opening ratio of the LCD is stepped from the inside to the frame glue and BM edge.

[0011] Preferably, the opening ratio of the red, green and blue pixels at the head and tail of the LCD is adjusted to increase the blue light transmittance.

[0012] (III) Beneficial effects

[0013] 1. Compared with the traditional pixel opening ratio, the red, green and blue are designed as 1:1:1. This structure increases the blue light transmittance of the LCD by optimizing the opening ratio of the red, green and blue pixels at the head and tail of the LCD to be close to 0.97:0.98:1. When the thickness of the liquid crystal box at the head and tail of the LCD is relatively high and the backlight is yellowish at the head and tail, it can even out the overall visual effect of the LCD module and optimize the problem of yellowish band at the edge. It can better meet the customer's stringent optical effect requirements. Through the LCD BM mask, the BM width compensation is performed at the head and tail of the pane l, and the red, green, blue and pixel opening ratios are adjusted to adjust the red, green and blue pixel transmittance ratio and optimize the problem of yellowish band at the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall pixel arrangement of the LCD of the present utility model;

[0016] Figure 2 This is a schematic diagram of the arrangement of 2mm pixels at the rear of the LCD of the utility model;

[0017] Figure 3 This is a schematic diagram of the 2mm pixel arrangement at the IC end of the utility model;

[0018] Figure 4 This is a schematic diagram of the pixels of the remaining LCD components of the present invention.

[0019] Legend: 1, red; 2, green; 3, blue. DETAILED DESCRIPTION

[0020] The embodiment of the present application effectively solves the problem of yellowish visual effects at the head and tail of medium-sized LCD modules by providing a structure for improving LCD edge chromatic aberration. The structure for improving LCD edge chromatic aberration optimizes the opening ratio of red, green, and blue pixels at the head and tail of the LCD to be close to 0.97:0.98:1, thereby increasing the blue light transmittance of the LCD. When the thickness of the liquid crystal boxes at the head and tail of the LCD is relatively high and the backlight is yellowish at the head and tail, the overall visual effect of the LCD module can be uniform, the problem of yellowish bands at the edges can be optimized, and the customer's stringent optical effect requirements can be better met. The LCD BM mask is used to perform BM width compensation at the head and tail of the pane 1, and the red, green, blue, and pixel opening ratios are adjusted to adjust the red, green, and blue pixel transmittance ratios and optimize the yellowish band problem at the edges.

[0021] Embodiment: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the middle-sized LCD module is prone to yellowing at the head and tail. The overall idea is as follows:

[0022] In view of the problems existing in the prior art, the utility model provides a structure for improving the color difference of LCD edges, including an LCD and red 1, green 2 and blue 3 arranged on the LCD, the opening ratio ratio of the head and tail of the LCD is 0.97:098:1, the overall opening ratio of the LCD is stepped from the inside to the frame glue and the BM edge, the opening ratio of the red 1, green 2 and blue 3 pixels at the head and tail of the LCD is adjusted to increase the blue light transmittance, compared with the traditional pixel opening ratio, the red 1, green 2 and blue 3 are designed as 1:1:1, and the structure increases the blue light transmittance of the LCD by optimizing the opening ratio of the red 1, green 2 and blue 3 pixels at the head and tail of the LCD to be close to 0.97:0.98:1, and when the thickness of the liquid crystal box at the head and tail of the LCD is too high and the backlight is yellowish at the head and tail, the overall visual effect of the LCD module can be uniform, the problem of the yellowish band at the edge can be optimized, and the strict optical effect requirements of customers can be better met. l Perform BM width compensation at the head and tail positions, adjust the red 1, green 2, blue 3, pixel opening ratio to adjust the red 1, green 2, blue 3 pixel transmittance ratio, and optimize the yellowish band problem at the edge.

[0023] Working principle:

[0024] The first step is that compared with the traditional pixel opening rate, the red 1, green 2, and blue 3 are designed as 1:1:1. This structure increases the blue light transmittance of the LCD by optimizing the opening ratio of red 1, green 2, and blue 3 pixels at the head and tail of the LCD, which is close to 0.97:0.98:1. When the thickness of the liquid crystal box at the head and tail of the LCD is relatively high and the backlight is yellowish at the head and tail, it can even out the overall visual effect of the LCD module and optimize the problem of yellowish band at the edge. It can better meet the customer's stringent optical effect requirements. Through the LCD BM mask, BM width compensation is performed at the head and tail of the pane l, and the red 1, green 2, blue 3 pixel opening ratio is adjusted to adjust the red 1, green 2, blue 3 pixel transmittance ratio and optimize the problem of yellowish band at the edge.

[0025] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A structure for improving LCD edge color difference, comprising an LCD and red (1), green (2) and blue (3) arranged on the LCD, characterized in that: The opening ratio ratio of the head and tail of the LCD is 0.97:0.98:1, and the overall opening ratio of the LCD is distributed in a stepped manner from the inside to the edge of the frame glue and BM.

2. The structure for improving LCD edge color difference according to claim 1, characterized in that: The opening ratio of the red (1), green (2) and blue (3) pixels at the head and tail of the LCD is adjusted to increase the blue light transmittance.

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