Invention Application
WO9850804A3 DYNAMIC DRIVE METHODS AND APPARATUS FOR A BISTABLE LIQUID CRYSTAL DISPLAY
审中-公开
动态驱动方法和装置用于双向液晶显示
- Patent Title: DYNAMIC DRIVE METHODS AND APPARATUS FOR A BISTABLE LIQUID CRYSTAL DISPLAY
- Patent Title (中): 动态驱动方法和装置用于双向液晶显示
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Application No.: PCT/US9809259Application Date: 1998-05-06
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Publication No.: WO9850804A3Publication Date: 1999-04-08
- Inventor: YANG DENG-KE , ZHU YANG-MING , HUANG XIAO-YANG
- Applicant: UNIV KENT STATE OHIO
- Assignee: UNIV KENT STATE OHIO
- Current Assignee: UNIV KENT STATE OHIO
- Priority: US85231997 1997-05-07
- Main IPC: G02F1/133
- IPC: G02F1/133 ; G02F1/137 ; G09G3/20 ; G09G3/36
Abstract:
A flat-panel liquid crystal display (10). The display includes a flat sheet of bistable chiral nematic liquid crystal material activated by a drive circuit that individually controls the display state of multiple picture elements. The driver circuitry activates the liquid crystal domains with various drive schemes which have any number of different phases (300, 312, 318, and 320) to attain various addressing sequence times. At the end of each drive scheme, the texture of the liquid crystal material is allowed to provide either focal conic or twisted planar end states (320) across the two-dimensional array of picture elements. Each drive scheme employs at least a preparation phase (300) and a selection phase (318) to predispose the liquid crystal material to one of the end states.
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