Liquid crystal display and driving method thereof
A technology for liquid crystal displays and display panels, applied in static indicators, instruments, etc., can solve problems such as high power consumption, temperature rise of data drive circuits, and increased power consumption.
Active Publication Date: 2016-03-30
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0005] At present, in order to achieve the best picture quality, the dot inversion method is usually used to drive the liquid crystal in the pixel, but the power consumption will be relatively large, and under the heavy load picture, the temperature of the data driving circuit will further rise, and the power consumption will further increase. Increase
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[0026] Embodiments of the invention will now be described in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures. In the drawings, the thicknesses of layers and regions may be exaggerated for clarity. In the following description, unnecessary detailed descriptions of well-known structures and / or functions may be omitted in order to avoid obscuring the inventive concept caused by unnecessary detailed descriptions of well-known structures and / or functions.
[0027] figure 1 is a schematic structural diagram of a liquid crystal display according to an exemplary embodiment of the present invention.
[0028] like figure 1 As shown, the liquid crystal display according to the exemplary embodiment of the present invention includes a display panel 11 , a timing controller 12 , a data driving cir...
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Disclosed are a liquid crystal display and driving method thereof, the liquid crystal display comprising: a display panel comprising a plurality of data lines, a plurality of scanning lines crossing the plurality of data lines, and a plurality of pixels arranged in a matrix form at the crossing points of the plurality of data lines and the plurality of scanning lines; a data drive circuit configured to provide data voltage for the plurality of data lines; a power consumption reducing module configured to store the data of a most overloaded image and compare the most overloaded image with the data contained in an input image, determine whether the input image is an overloaded image increasing the power consumption of the data drive circuit based on the comparison result, and deciding whether to change the polarity inversion mode of a timing controller based on the determination result. The present invention selectively changes the polarity inversion mode of a timing controller based on an input image, thus reducing the power consumption of a data drive circuit while ensuring the quality of a display image.
Description
technical field [0001] The invention relates to the field of liquid crystal display. More specifically, it relates to a liquid crystal display capable of reducing power consumption of a data driving circuit and a driving method thereof. Background technique [0002] Liquid Crystal Display (LCD) has two driving methods: passive matrix [also known as passive (passive) matrix] and active matrix [also known as active (active) matrix]. In an active LCD, multiple pixels (pixels) are arranged in a matrix, and the pixels themselves do not emit light. They need to be turned on or off by TFTs (ThinFilmTransistor, thin film field effect transistors) formed in the pixels and provided to the pixels. The appropriate data voltage of the liquid crystal, and with a uniform backlight, so that the liquid crystal display can display the picture. [0003] Each pixel in an active LCD must be driven in a polarity inversion manner, that is, the data voltage with positive and negative polarity cha...
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IPC IPC(8): G09G3/36
CPCG09G3/3614G09G3/3648G09G2330/021
Inventor 扶伟吴宇
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD