Driving Method for Low Power Consumption in TFT-LCDs

SHANG Guang-liang; ZHAO Tian-yue; ZHAO Xing-xing; WANG Qiang-tao; YAO Qi; YANG Ya-feng; ZH

doi:10.3788/YJYXS20122706.0785

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Driving Method for Low Power Consumption in TFT-LCDs

Driving & Controlling | 更新时间：2020-08-12

- Driving Method for Low Power Consumption in TFT-LCDs
- Chinese Journal of Liquid Crystals and Displays Vol. 27, Issue 6, Pages: 785-788(2012)
- 作者机构：
  
  京东方科技集团股份有限公司技术中心北京,100176
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20122706.0785
  CLC： TN27
- Received：26 July 2012，
  
  Revised：31 August 2012，
  
  Published：15 December 2012
- 稿件说明：
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商广良, 赵天月, 赵星星, 王强涛, 姚琪, 杨亚锋, 张玉婷, 张凯亮, 冷长林, 张丽蕾, 金瑞润, 柳在一, 王刚. 低功耗TFT-LCD驱动方法[J]. 液晶与显示, 2012,(6): 785-788

SHANG Guang-liang, ZHAO Tian-yue, ZHAO Xing-xing, WANG Qiang-tao, YAO Qi, YANG Ya-feng, ZHANG Yu-ting, ZHANG Kai-liang, LENG Chang-lin, ZHANG Li-lei, KIM Sean, RYU Jai-il, WANG Gang. Driving Method for Low Power Consumption in TFT-LCDs[J]. , 2012,(6): 785-788
商广良, 赵天月, 赵星星, 王强涛, 姚琪, 杨亚锋, 张玉婷, 张凯亮, 冷长林, 张丽蕾, 金瑞润, 柳在一, 王刚. 低功耗TFT-LCD驱动方法[J]. 液晶与显示, 2012,(6): 785-788 DOI： 10.3788/YJYXS20122706.0785.

SHANG Guang-liang, ZHAO Tian-yue, ZHAO Xing-xing, WANG Qiang-tao, YAO Qi, YANG Ya-feng, ZHANG Yu-ting, ZHANG Kai-liang, LENG Chang-lin, ZHANG Li-lei, KIM Sean, RYU Jai-il, WANG Gang. Driving Method for Low Power Consumption in TFT-LCDs[J]. , 2012,(6): 785-788 DOI： 10.3788/YJYXS20122706.0785.

摘要

为了降低薄膜晶体管液晶显示器(TFT-LCD)的功耗

提出了一种新的双栅之型反转驱动方法。研究了双栅之型反转驱动技术的节能原理

完成了相关结构设计、电路设计

制作了35.6 cm(14 in)WXGA(1 366 RGB768)样品

测试并分析了节能效果。结果表明

该技术可以有效降低TFT-LCD的功耗

在显示彩条画面的情况下

液晶屏模拟电源功耗降低了70%(191 mW)。分析了出现的莫尔条纹问题

并提出了解决方案。该研究为降低TFT-LCD及其他显示设备的功耗提供了一种驱动方法及设计参考。

Abstract

A dual-gate + Z-inversion (DZi) driving method was proposed to reduce power consumption of thin-film transistor liquid crystal display (TFT-LCD). The power saving principle of DZi driving was researched

the structure design and circuit design were finished

35.6 cm(14 in) WXGA (1 366 RGB?768) samples were manufactured

and the power saving effect was measured and analyzed. As results

DZi can save TFT-LCD power consumption in effect

such as panel AVDDS power reduces 70% (191 mW) when display color-bar pattern. Moir? phenomenon that appeared in DZi module was analyzed

and solutions were proposed. The research established a driving method and design reference for lower power consumption in TFT-LCDs and other displays.

关键词

Keywords

references

杨虹,王刚,唐志勇,等. 一种低压驱动TFT液晶显示屏的方法 [J]. 液晶与显示, 1999,14(3):211-215.[2] 杨虹,王刚,唐志勇,等. 液晶屏驱动方法研究 [J]. 微电子学, 2000, 30(1): 39-42.[3] 林志成,邵庆益,陈阿青. 一种用于LCD驱动的低功耗输出缓冲放大器 [J]. 液晶与显示, 2010,25(2):220-224.[4] Park H W, Moon S H, Kang N S, et al. A Data-line sharing method for lower cost and lower power in TFT-LCDs. [C]//IMID'05 DIGEST, KR:IMID, 2005:531-534.[5] Yun S C, Lee C D, Nam Y S, et al. New driving method for low logic power consumption in TFT-LCDs [C]//SID 10 DIGEST, USA:SID, 2010:619-621.[6] 曾永红,邹雪城,付智辉,等.基于STN-LCD控制驱动器的低功耗技术 [J]. 华中科技大学学报(自然科学版), 2006,34(12):95-97.[7] 华广胜,布占场,郑效盼,等.低功耗液晶电视LED背光源设计 [J]. 液晶与显示, 2011,26(4):460-463.[8] 范志新. 液晶器件工艺基础 [M].北京:北京邮电大学出版社,2000:5-20.[9] 京东方科技集团股份有限公司.液晶显示器:中国,CN102455552 [P].2012-05-12.[10] 海滨天地. 莫尔条纹[R/OL]. [2011-06-22].http://wenku.baidu.com/view/358c8bd96f1aff00bed51ea5.html.[11] Amidror I. The Theory of the Moiré Phenomenon, Volume I: Periodic Layers [M]. Second Edition. London: Springer-Verlag London Limited, 2009:9-55.

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