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Display uniformity adjusting method and device for liquid crystal display equipment

A technology for liquid crystal display and display uniformity, which is used in static indicators, instruments, etc. to reduce brightness damage, reduce display unevenness, and increase costs.

Active Publication Date: 2016-06-29
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a method and device for adjusting display uniformity of a liquid crystal display device, which are used to solve the problem of how to balance brightness and display uniformity

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  • Display uniformity adjusting method and device for liquid crystal display equipment
  • Display uniformity adjusting method and device for liquid crystal display equipment
  • Display uniformity adjusting method and device for liquid crystal display equipment

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Embodiment Construction

[0022] According to the user's visual experience, it is found that when the ambient brightness is high, for example, the user is in a relatively bright environment, the user is not sensitive to display unevenness, but needs a high display brightness, so it is not appropriate to adjust the uniformity too much and cause the brightness to decrease; When the ambient brightness is low, for example, in a relatively dark environment, the user is sensitive to display unevenness, and the demand for brightness is reduced, and it is necessary to focus on reducing the display unevenness problem. In the prior art, a correction coefficient is generally preset to reduce display unevenness, that is, each pixel corresponds to a correction coefficient to correct the grayscale value. The embodiment of the present invention dynamically adjusts the brightness by detecting the ambient brightness and the brightness of the displayed screen. The grayscale value of the displayed image, for example, dyna...

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Abstract

The invention provides a display uniformity adjusting method and device for liquid crystal display equipment.The method comprises the steps of detecting and obtaining the ambient brightness of the liquid crystal display equipment and the original brightness of an image frame to be displayed; obtaining the adjustment coefficient of the image frame to be displayed according to the ambient brightness and the original brightness of the image frame to be displayed, and adjusting the original grey-scale value of the image frame to be displayed according to the adjustment coefficient.According to the method, the adjustment coefficient is dynamically adjusted according to the ambient brightness in different environments and the original brightness of the image frame to be displayed so that the original grey-scale value of the image frame to be displayed can be adjusted, and compared with the prior art that non-uniform display is reduced by presetting coefficients, the method has the advantage that the degree of non-uniform display is reduced dynamically, so that on the premise that brightness loss of an image to be displayed is reduced as much as possible, a user does not feel the non-uniformity of display of the image on the liquid crystal display equipment easily, and then visual experience of the user is better.

Description

technical field [0001] The present invention relates to liquid crystal display technology, in particular to a method and device for adjusting the display uniformity of liquid crystal display equipment. Background technique [0002] At present, liquid crystal display devices generally use light-emitting diodes (Light Emitting Diode, LED for short) as a backlight source, and mainly use a direct-type backlight technology or an edge-type backlight technology to illuminate the liquid crystal panel to achieve screen display. However, due to the uneven brightness of the LEDs or the quality of the film between the LEDs and the liquid crystal panel, the problem of uneven display (mura) of the images displayed on the display panel is often caused. [0003] In the prior art, in order to reduce the problem of display unevenness, LEDs with better quality or diaphragms with better quality are mainly selected to reduce display unevenness as much as possible. However, using the prior art m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36
Inventor 赵树斌房好强
Owner HISENSE VISUAL TECH CO LTD
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