Liquid Crystal Display Having Two Equal Common Voltages at Two Opposite Sides

摘要

A liquid crystal display includes a pixel array, a gate driver, a data driver, a common voltage source, and a current duplication module. The gate driver is used to turn on a plurality of rows of pixels in the pixel array in sequence. The data driver is used to provide a plurality of data voltages to the turned-on pixels in the pixel array. The common voltage source is used to provide a common voltage. The current duplication module is coupled to a first side and a second side of the pixel array and is used to input two substantially equal currents to the first side and the second side of the pixel array respectively to provide the common voltage to the first side and the second side of the pixel array.

主权项

1. A liquid crystal display comprising:
a pixel array; a gate driver configured to provide a plurality of gate voltages to turn on a plurality of rows of pixels in the pixel array sequentially; a data driver configured to provide a plurality of data voltages to the turned-on pixels in the pixel array; a common voltage source configured to provide a common voltage; and a current duplication module coupled to the common voltage source, a first side of the pixel array, and a second side of the pixel array, and configured to input two substantially equal currents to the first side and the second side of the pixel array respectively to provide the common voltage to the first side and the second side of the pixel array; wherein the first side and the second side of the pixel array are two opposite sides of the pixel array.