Viewing angle controllable fringe and in-plane switching vertical alignment LCD

Abstract

A viewing angle controllable fringe and in-plane switching vertical alignment liquid crystal display (LCD) structure has been proposed. To realise the change from wide viewing angle (WVA) to narrow viewing angle (NVA) in a single LCD panel, the bias voltage is applied on the common electrode, and NVA can decreases with the increasing bias voltage. In WVA mode, the viewing angle cone (contrast ratio larger than 1000:1) is almost 70° and the contrast ratio is larger than 100:1 in arbitrary azimuthal directions. In NVA mode, the viewing angle cone (10:1) can continuously and uniformly change from 40° to 20°.

Keywords:

• viewing angle controllable
• fringe and in-plane switching
• liquid crystal display
• vertical alignment

Additional information

Funding

This research was supported by the National Natural Science Foundation of China [grant number 11274088], [grant number 11304074], [grant number 61475042]; Program for New Century Excellent Talents in University [grant number NCET-11-0931]; and the Key Subject Construction Project of Hebei Province University and Science and Technology Plan of Hebei province [grant number 134576260].