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Liquid crystal display device and driving method thereof

A technology of a liquid crystal display device and a driving method, which can be applied to static indicators, instruments, etc., can solve the problems of high cost and affecting the light transmittance of the panel.

Active Publication Date: 2020-03-20
HKC CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the problem with the above method is that it needs to double the number of metal wiring and driving devices to drive the sub-pixels, so that the light-transmitting opening area is sacrificed, which affects the light transmittance of the panel, and the cost is also higher.

Method used

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  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof

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Embodiment Construction

[0077] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0078] A method for driving a liquid crystal display device, such as figure 1 As shown, the liquid crystal display device includes: a display module 100 for displaying graphic information. The display module includes a plurality of pixel units 110 arranged in an array. The pixel unit 110 includes a red sub-pixel 111 , a green sub-pixel 112 and a blue sub-pixel 113 . The display module 100 is divided into at least two mutually independent display areas. And the backlight module 300 is provided with a plurality of backlight units 320 . The backlight unit includes a red light source, a green light...

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Abstract

The invention relates to a display device and a driving method thereof. The display module is divided into a plurality of mutually independent display areas, each display area corresponds to at least one backlight unit, and the backlight units corresponding to different display areas are independent of each other. According to the type of the color corresponding to the original gray scale data set to be displayed by each pixel unit, the ternary color mixing original gray scale data set is decomposed into a ternary color mixing gray scale data set and a binary color mixing gray scale data set. The binary mixed color original grayscale data set is decomposed into a binary mixed color grayscale data set and a unit color grayscale data set, or an all 0 grayscale data set and a binary grayscale data set. Decompose the unit color original grayscale data group into two sets of grayscale data on average, and then turn off the backlight of the same color and the overwhelming majority of the 0 grayscale data corresponding to the color when displaying the decomposed grayscale data group, so as to improve Great role-playing and energy saving.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display device and a driving method thereof. Background technique [0002] Among the changes of large viewing angle and square viewing angle deviation of various representative color systems of liquid crystal displays, the large viewing angle deviation of red, green and blue color systems is more serious than other color systems. Moreover, due to the viewing angle brightness of gray-scale LCD The rapid saturation increase of the ratio makes the difference between the brightness of the front viewing angle and the brightness of the side viewing angle larger when the gray scale value is lower. [0003] The current method used to improve color shift is to subdivide each sub-pixel into a main pixel and a sub-pixel, and then drive the main pixel with a relatively high driving voltage, and drive the sub-pixel with a relatively low driving voltage, the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/34
CPCG09G3/3413G09G3/36G09G2320/0242G09G2360/16G09G2320/0646G09G3/3611G09G3/342G09G3/3607G09G2320/0252G09G2320/0626G09G2320/028G09G3/3426
Inventor 康志聪
Owner HKC CORP LTD
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