Pixel circuit and drive method thereof

Abstract

A pixel circuit used for a liquid crystal display is disclosed, comprising a first capacitor cell, a second capacitor cell, a voltage regulation unit and a switch unit, wherein the first capacitor cell comprises a first liquid crystal capacitor and a second liquid crystal capacitor; the second capacitor cell comprises a third liquid crystal capacitor. The voltage regulation unit is electrically connected to the first liquid crystal capacitor and the second liquid crystal capacitor, for causing the voltages of the first liquid crystal capacitor and the second liquid crystal capacitor to be different when the first capacitor cell receives a voltage. The switch unit is electrically connected to the first capacitor cell and the second capacitor cell. The switch unit transfers a data voltage to the first capacitor cell and the second capacitor cell while being actuated by a first scanning signal; the switch unit transfers a common voltage to the second capacitor cell while being actuated by a second scanning signal. The liquid crystal display may have large vertical angle and horizontal angle of view in either 2D (two-dimensional) or 3D (three-dimensional) display.

Description

technical field [0001] The present invention relates to a pixel circuit and a driving method thereof, in particular to a pixel circuit and a driving method thereof which are used in a liquid crystal display and can increase the viewing angle of the liquid crystal display. Background technique [0002] refer to figure 1 , which shows a liquid crystal display 1 capable of displaying three-dimensional (3D) images using a phase retardation film 11 , and glasses 2 with a left-handed polarizing lens 21 and a right-handed polarizing lens 22 . The phase retardation film 11 includes a plurality of left-handed polarizing regions 111 arranged at intervals along the vertical direction, and a plurality of right-handed polarizing regions 112 arranged at intervals along the vertical direction, and between every two adjacent left-handed polarizing regions 111 is A right-handed polarization region 112 . [0003] When performing three-dimensional display, the liquid crystal display 1 transm...

AI Technical Summary

Problems solved by technology

[0014] Although Image 6 This kind of pixel circuit 12' will not degrade the liquid crystal display 1 when displaying 2D as when displaying 3D (see figure 1 ), but the liquid crystal molecules of the liquid crystal display 1 are only driven by a single voltage (the first data voltage) during 3D display, so the horizontal viewing angle becomes relatively smaller and color distortion is prone to occur

Images