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LCD display control method and device

A display control method and liquid crystal display technology, applied to static indicators, instruments, etc., can solve problems such as picture distortion, color shift, and unclear images

Active Publication Date: 2018-05-08
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, VA drive has a natural defect: the phenomenon of color shift (colorshift) is more serious when viewed at a large viewing angle (ie side view), that is, the picture will appear distorted at a large viewing angle, and even the image cannot be seen clearly when it is serious

Method used

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  • LCD display control method and device

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Embodiment 1

[0049] figure 1 A flowchart showing a display control method of a liquid crystal display according to an embodiment of the present invention. Such as figure 1 As shown, the display control method of the liquid crystal display is mainly used to adjust the brightness value corresponding to the gray scale value of each pixel in the liquid crystal display as follows according to the standard brightness change curve:

[0050] Step 101. Adjust the brightness value corresponding to the first gray scale value within the first gray scale range to be lower than the brightness value corresponding to the first gray scale value on a standard brightness change curve.

[0051] Step 102: Set the brightness value corresponding to the third gray scale value within the middle gray scale range to be equal to the brightness value corresponding to the third gray scale value on the standard brightness change curve.

[0052] Step 103. Adjust the brightness value corresponding to the second gray s...

Embodiment 2

[0066] Figure 8 A flowchart showing a display control method of a liquid crystal display according to another embodiment of the present invention. Figure 8 Winning mark and figure 1 The same steps have the same functions, and detailed descriptions of these steps are omitted for brevity.

[0067] Such as Figure 8 As shown, the main difference from the previous embodiment is that the display control method of the liquid crystal display further includes:

[0068] Step 104: Generate at least one adjustment curve according to the grayscale value and brightness value of each pixel in the first grayscale range, the intermediate grayscale range, and the second grayscale range. Such as figure 2 and image 3 As shown, the abscissa of the adjustment curve (optimized curve and optimized curve in the figure) is the gray scale value, and the ordinate is the brightness value;

[0069] Step 105 : Control the driving voltage of the liquid crystal display in the vertical alignment dr...

Embodiment 3

[0074] Figure 9 A structural block diagram of a display control device for a liquid crystal display according to an embodiment of the present invention is shown. The display control device can adjust the brightness value corresponding to the gray scale value of each pixel in the liquid crystal display screen according to the standard brightness change curve, as shown in FIG. Figure 9 As shown, the display control device may mainly include: a first adjustment module 11, configured to adjust the brightness value corresponding to the first gray-scale value in the first gray-scale range to be lower than the first gray-scale value in the range the corresponding brightness value on the standard brightness change curve; the second adjustment module 13 is used to adjust the brightness value corresponding to the second gray-scale value within the second gray-scale range to be higher than the second gray-scale value within the specified range The corresponding brightness value on the...

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Abstract

A display control method and device for a liquid crystal display screen. The method comprises carrying out the following adjustment on a brightness value corresponding to a grayscale value of each pixel in a liquid crystal display screen according to a standard brightness changing curve: adjusting a brightness value corresponding to a first grayscale value in a first grayscale range to be lower than a corresponding brightness value of the first grayscale value on a standard brightness changing curve (101); and adjusting a brightness value corresponding to a second grayscale value in a second grayscale range to be higher than a corresponding brightness value of the second grayscale value on the standard brightness changing curve (103), wherein the grayscale value in the first grayscale range is smaller than the grayscale value in the second grayscale range. In the method, by twisting a standard brightness changing curve, a large visual angle colour bias can be improved, distortion can be reduced, and display effect can be obviously improved.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a display control method and device for a liquid crystal display. Background technique [0002] A liquid crystal display (Liquid Crystal Display, LCD) is currently widely used and promoted due to its advantages of energy saving, environmental protection, portability and the like. Among them, a liquid crystal display using a vertical alignment (Vertical Alignment, VA) driving mode is generally recognized by the market because of its high contrast ratio and fast response speed. [0003] However, the VA drive has a natural defect: the phenomenon of color shift (colorshift) is more serious when viewed at a large viewing angle (ie, side view), that is, the picture will appear distorted at a large viewing angle, and even the image cannot be seen clearly in severe cases. Contents of the invention [0004] technical problem [0005] In view of this, the technical problem to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/34
Inventor 宁超曹谦苏文华姚键潘柏宇王冀
Owner ALIBABA (CHINA) CO LTD
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