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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 is applied to static indicators, nonlinear optics, instruments, etc., can solve problems such as the deterioration of picture display quality, improve the display quality of dynamic pictures, improve the driving response speed, and reduce the smear phenomenon. Effect

Active Publication Date: 2009-04-01
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a liquid crystal display device and its driving method, which can effectively solve the technical defect of the prior art that the image display quality is reduced due to overshoot or undershoot by controlling the on / off of the backlight

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

[0033] figure 1 It is a flow chart of the liquid crystal display device driving method of the present invention, specifically:

[0034] Compensate the input voltage of the data line in this frame by comparing the input voltage of the data line in this frame with that of the previous frame, so that the compensated input voltage of the data line forms an overshoot voltage and outputs it to the LCD panel;

[0035] Control the backlight on / off, turn off the backlight when the overshoot voltage is output to the LCD panel, and turn on the backlight when the overshoot voltage returns to the normal voltage.

[0036] The present invention aims at the technical defect in the prior art that the picture quality is degraded by overshoot or undershoot, and proposes a liquid crystal display device that controls the on / off of the backlight source to improve the picture display quality. The liquid crystal display device includes a liquid crystal panel, an overshooter, a timing controller, a g...

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PUM

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Abstract

The invention relates to a liquid crystal display (LCD) device and a drive method thereof. The drive method comprises: compensating input voltage of data wires in the current frame by comparing the input voltages of the data wire in the current frame and the former frame, thereby leading the input voltage of the data wire after being compensated to form overshoot voltage and to be output into a liquid crystal panel; controlling the starting / closing of LED backlight, when the overshoot voltage is output to the liquid crystal panel, the LED backlight is closed; while the overshoot voltage is recovered to the normal voltage, the LED backlight is started. The liquid crystal display (LCD) device comprises the liquid crystal panel, a time schedule controller, an overshooting device, a data driven device, a grid actuator and an inverter; wherein, the inverter is used for controlling the starting / closing of a plurality of lighting tubes in the LED backlight; when the overshoot voltage is output to the liquid crystal panel, the LED backlight is closed; while the overshoot voltage is recovered to the normal voltage, the LED backlight is started. The liquid crystal display (LCD) device and the drive method thereof have the advantage of rapid driving response, and the overshoot or undershoot can not cause image quality to be reduced, thereby decreasing the phenomenon of trailing smear and improving the dynamic display image quality.

Description

technical field [0001] The invention relates to a display device and a control method thereof, in particular to a liquid crystal display device and a driving method thereof. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has the characteristics of light weight, thin thickness and low power consumption, and is widely used in mobile phones, monitors, TVs and other devices. After TFT-LCD entered the TV market dominated by CRT, The requirements for the display quality and response speed of the dynamic picture of the liquid crystal display device are more stringent. [0003] At present, the existing technology generally adopts overshooting and undershooting methods to improve the dynamic response speed of the liquid crystal display device. The specific method is: relative to the rising target voltage value, the actual input voltage includes the initial phase The overshoot voltage value and the target voltage value in the subsequent stage, the...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/34G02F1/13
Inventor 郑喆奎
Owner K TRONICS (SUZHOU) TECH CO LTD
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