Liquid crystal display device and driving method thereof

Abstract

The present invention discloses a liquid crystal display device and a driving method thereof. The device comprises an upper substrate, a lower substrate, liquid crystals, a film transistor substrate, a data converter, a source driving circuit and a gate driving circuit. A pixel structure of the upper substrate is that a pixel is composed of four sub-pixels of red, green, blue and white in a matrix array in a certain manner; a structure of the lower substrate is that a plurality of film transistors are arranged and combined in a certain manner, wherein film transistors and the sub-pixels on the upper substrate form a one-to-one correspondence. In the liquid crystal display device and the driving method thereof, the white sub-pixel is added, the four sub-pixels of red, green, blue and white are connected in a four-gate connection mode, and gate signals and source signals of a pixel are respectively controlled by a control line and a data line according to different array manners; brightness is increased, and meanwhile, contrast is increased as well; and moreover, power consumption of the apparatus is reduced and cost of the apparatus is lowered.

Description

technical field [0001] The present invention relates to the field of liquid crystal display, and more specifically, relates to a liquid crystal display device and a driving method thereof. Background technique [0002] With the continuous development of liquid crystal display technology, people have higher and higher requirements for liquid crystal display devices in terms of image display such as brightness and color saturation. Therefore, thin film transistor liquid crystal display devices with front-end display levels are widely used. Used in display devices such as computer monitors, televisions and mobile phones. [0003] The thin film transistor liquid crystal display device is composed of a liquid crystal display glass, a source driving circuit and a gate driving circuit. The liquid crystal display glass is composed of an upper substrate and a lower substrate. There is a certain distance between the upper substrate and the lower substrate, and liquid crystals are fil...

AI Technical Summary

Problems solved by technology

[0010] In view of this, the present invention provides a liquid crystal display device and its driving method to overcome the fact that the structure of pixels, control lines and data lines in the thin film transistor liquid crystal display device in the prior art does not meet people's needs, and the power consumption, high cost problem

Images