Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (CN1231048) Dynamic drive methods and apparatus for bistable liquid crystal display

Office : China
Application Number: 98800938.2 Application Date: 06.05.1998
Publication Number: 1231048 Publication Date: 06.10.1999
Grant Number: 1188821 Grant Date: 09.02.2005
Publication Kind : C
Prior PCT appl.: Application Number:PCTUS1998009259 ; Publication Number:1998050804 Click to see the data
IPC:
G09G 3/36
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34
by control of light from an independent source
36
using liquid crystals
CPC:
G09G 3/3629
G02F 1/13718
G09G 3/2011
G09G 3/2014
G09G 3/3681
G09G 2300/0486
G09G 2310/0205
G09G 2310/06
G09G 2320/0209
Applicants: Kent State Univ.
肯特州大学
Inventors: Yang Deng-ke
杨登科
Huang Xiao-Yang
黄晓阳
Zhu Yang-Ming
朱杨明
Agents: wang yong
中国专利代理(香港)有限公司
中国专利代理(香港)有限公司
Priority Data: 08852319 07.05.1997 US
Title: (EN) Dynamic drive methods and apparatus for bistable liquid crystal display
(ZH) 用于双稳态液晶显示的动态驱动方法和装置
Abstract: front page image
(EN) A flat-panel liquid crystal display. 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 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 across the two-dimensional array of picture elements. Each drive scheme employs at least a preparation phase and a selection phase to predispose the liquid crystal material to one of the end states.
(ZH)

一种平板液晶显示器,其包括由驱动电路激励的双稳态手性向列液晶材料的平板,所述驱动电路独立地控制多个像素的显示状态。驱动电路利用几种驱动方法激励液晶范围,其具有任何数量的不同状态,以便得到几种寻址序列时间。在每种驱动方法结束时,使得液晶材料的结构可以跨过二维的像素阵列而提供焦点锥体最终状态或者扭转平面最终状态。每种驱动方法至少利用准备阶段和选择阶段,以便把液晶材料预置为一种最终状态。


Also published as:
KR1020000022562EP0954841JP2000514932 AU1998072911WO/1998/050804