Design of bidirectional and low power consumption gate driver in amorphous silicon technology for TFT-LCD application

Guang Ting Zheng*, Po-Tsun Liu, Meng Chyi Wu, Li Wei Chu, Meng Chuan Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

A new gate driver has been designed and fabricated by amorphous silicon (a-Si) technology. With utilizing four clock signals in the design of gate driver on array (GOA), the pull-up transistor has ability for both output charging and discharging, and layout size of the proposed gate driver can be narrowed for bezel panel application. Moreover, lower duty cycle of clock signals can decrease static power loss to further reduce the overall power consumption of the proposed gate driver. The scan direction of the proposed gate driver can be adjusted by switching two direct control signals to present the reversal display of image. The proposed gate driver has been successfully demonstrated in a 4.5-inch WVGA (480×RGB×800) TFT-LCD panel and passed reliability tests of the supporting foundry.

Original languageEnglish
Article number6410362
Pages (from-to)91-99
Number of pages9
JournalIEEE/OSA Journal of Display Technology
Volume9
Issue number2
DOIs
StatePublished - Feb 2013

Keywords

  • Amorphous silicon (a-Si)
  • gate driver
  • thin-film transistor liquid crystal display (TFT-LCD)

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