Patent · US Active

Vertical alignment liquid crystal display device and method for driving same

US9217898B2 · kind B2 · utility

0Cited by
1References
12Claims
0Family size

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Inventors

Key dates

Filing dateFeb 20, 2014
Grant dateDec 22, 2015
Priority date—
Expiry dateFeb 20, 2034

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 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.