Liquid crystal display device and display control method

A technology of liquid crystal display devices and liquid crystal panels, which is applied to static indicators, instruments, etc., can solve problems such as unstable phase relationship and image flickering, and achieve the effect of optimizing picture quality, improving picture quality, and eliminating picture flickering
CN102737602AInactive Publication Date: 2012-10-17HISENSE VISUAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HISENSE VISUAL TECH CO LTD
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a liquid crystal display device, which comprises a liquid crystal panel circuit, a gate driving circuit, a source driving circuit, a time sequence control circuit, a backlight and a backlight control circuit, wherein the time sequence control circuit is used for outputting a gate driving signal and a source driving signal to the gate driving circuit and the source driving circuit correspondingly and outputting a backlight control signal to the backlight control circuit; the gate driving signal comprises a field synchronizing signal; the backlight control signal comprises a field synchronizing signal; the backlight control circuit is used for generating pulse-width modulation (PWM) signals and outputting the PWM signals to the backlight; and phase differences between the PWM signals and the field synchronizing signal are fixed. The invention also provides a liquid crystal display control method. The method is characterized by comprising the field synchronizing signal for controlling the output of the time sequence control circuit and the PWM signals for controlling the output of the backlight control circuit, so that the phase differences between the field synchronizing signal output by the time sequence control circuit and the PWM signals are fixed. By the liquid crystal display device and the liquid crystal display control method, the shortcoming that the image in the liquid crystal display device glitters is effectively overcome, and the quality of a liquid crystal display product is improved.
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Description

Technical field

[0001] The present invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display device and a display control method. Background technique

[0002] The liquid crystal display device includes four parts: one is a liquid crystal panel, which is generally referred to as an LCD panel; the second is a timing control module; the third is a backlight module; the fourth is a backlight control module. among them:

[0003] LCD panel composition structure such as figure 1 As shown, from the back light source 106 to the observation surface from bottom to top: lower polarizer 101—lower glass (TFT layer) 102—liquid crystal 103—upper glass (color filter layer) 104—upper polarizer 105 . Control the brightness and darkness of the pixels corresponding to the panel by controlling the switch of TFT (thin film transistor). A sub-pixel is controlled by a TFT. For example, a panel with a resolution of 1366*768, the number of corresponding...

Claims

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