Patent · US Active

Vertical alignment liquid crystal display device and method for driving same

US8692752B2 · kind B2 · utility

7Cited by
1References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 18, 2009
Grant dateApr 8, 2014
Priority date—
Expiry dateOct 21, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09G2320/028
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A vertical alignment liquid crystal display device (VA-LCD) includes a display panel. The display panel includes a plurality of pixels. Each pixel unit includes a first thin film transistor (TFT), a second TFT, and a liquid crystal capacitor having a pixel electrode and a common electrode. The common electrode is applied with a common voltage, a first gray voltage is applied to the pixel electrode through a first TFT, and a second gray voltage is applied to the pixel electrode through a second TFT different from the first gray voltage, such that the liquid crystal capacitor maintains two different gray voltages in a display frame time of the VA-LCD.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.