用于蓝相液晶显示器的放大工作电压的新颖像素电路

2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD) Pub Date : 2016-07-06 DOI:10.1109/AM-FPD.2016.7543624

C. Chang, Chih-Lung Lin, Po-Syun Chen

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引用次数: 0

摘要

提出了一种由4个薄膜晶体管(TFTs)和2个电容器组成的新型像素电路，用于蓝相液晶显示器(bplcd)。电容耦合方法可以放大BPLC之间的电压，预充电方法可以有效缩短充电时间。当实际源驱动集成电路(ic)提供的VDATA不能达到BPLC的最大透光率时，为了达到所需的电压，建立了VBIAS的四个电压电平。基于帧率为180 Hz的全高清bplcd规格的仿真结果表明，所提出的像素电路可以将最大工作电压从15 V提高到30 V。

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Novel pixel circuit to enlarge operation voltage for blue-phase liquid crystal displays

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 VBIAS are established for attaining desired voltage, when VDATA 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.

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来源期刊

2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)

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