Novel Pixel Circuit to Enlarge Operation Voltage for Blue-Phase Liquid Crystal Displays

被引:0
作者
Chang, Ching-Heng [1 ]
Lin, Chih-Lung [1 ]
Chen, Po-Syun [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Elect Engn, 1 Univ Rd, Tainan 701, Taiwan
来源
2016 23RD INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLATPANEL DISPLAYS AND DEVICES (AM-FPD) | 2016年
关键词
LCDS;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel pixel circuit composed of four thin-film transistors (TFTs) and two capacitors is proposed for blue-phase liquid crystal displays (BPLCDs). The capacitive coupling method can enlarge the voltage across BPLC, and the pre-charging method shortens the charging time effectively. Four voltage levels of V-BIAS are established for attaining desired voltage, when V-DATA supplied by practical source driver integrated circuits (ICs) cannot reach maximum transmittance of BPLC. Simulated results based on the specification of full high-definition BPLCDs with frame rate of 180 Hz confirm that the proposed pixel circuit can enlarge the maximum operation voltage from 15 V to 30 V.
引用
收藏
页码:75 / 77
页数:3
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