Liquid crystal display device and control method thereof

A liquid crystal display device and liquid crystal display panel technology, which is applied to static indicators, instruments, computing, etc., can solve problems such as abnormal alignment, electron loss, and panel noise, so as to avoid false touches, improve afterimages, and improve The effect of accuracy and precision
CN105676500BActive Publication Date: 2020-12-29KUSN INFOVISION OPTOELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUSN INFOVISION OPTOELECTRONICS
Publication Date
2020-12-29

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Abstract

The invention discloses a liquid crystal display. The liquid crystal display comprises a liquid-crystal display panel, a touch screen, a touch screen circuit chip and a power supplying module, wherein the touch screen circuit chip is connected with the touch screen and is used for detecting whether the touch screen is touched or not and outputting control signals; the power supplying module is separately connected with the touch screen circuit chip and the liquid-crystal display panel and is used for supplying direct-current signals or alternate-current signals to the liquid-crystal display panel according to the control signals. According to the liquid crystal display with the touch screen and the control method thereof, provided by the invention, the alternate-current signals are supplied to a color filter side of the liquid-crystal display panel when the touch screen is not touched so as to improve the phenomenon of image stacking, the direct-current signals are supplied to the color filter side of the liquid-crystal display panel when the touch screen is touched so as to avoid a mistaken touching phenomenon when the touch screen is used, and thus the accuracy and precision of touch are improved.
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Description

technical field

[0001] The invention belongs to the field of display technology, and more specifically relates to a liquid crystal display device and a control method thereof. Background technique

[0002] The liquid crystal display device utilizes the property that liquid crystal molecules have different polarization or refraction effects on light in different alignment states to control the amount of light transmitted, thereby enabling the liquid crystal display device to generate images.

[0003] Generally, the traditionally used Twisted Nematic (TN) liquid crystal display device is affected by the liquid crystal molecular structure and optical properties, so the viewing angle is very narrow. Therefore, other types of liquid crystal display devices with wide viewing angles have been developed, such as vertical alignment (Vertical Alignment, VA) liquid crystal display devices, in-plane switching (In-PlanSwitch, IPS) liquid crystal displays, and fringe electric field switch...

Claims

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