Novel pixel circuit with inverter structure based on a-IGZO TFT for blue-phase liquid crystal displays

Chih Lung Lin, Po Cheng Lai, Fu Hsing Chen, Chia Che Hung, Bo Shu Chen

Research output: Contribution to journalConference articlepeer-review

Abstract

This work presents a new pixel circuit with amorphous indium-gallium-zinc-oxide thin-film transistors (a-IGZO TFTs) for blue-phase liquid crystal displays (BPLCDs). The proposed circuit adopts two pairs of inverter structures to ameliorate the frequency effect of the BPLCs for generating the accurate gray level voltages. Furthermore, to achieve the maximum transmittance of BPLCs, the wide range of the operation voltage is performed. Simulation results show that the proposed pixel circuit produces an operation voltage range of −29.329 V to 29.748 V when the practical source driver integrated circuits (ICs) only supplies an output voltage swing of 0 V to 15 V, successfully inverting the polarity of the BPLCs without the common signal.

Original languageEnglish
Pages (from-to)1242-1245
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume49
Issue number1
DOIs
Publication statusPublished - 2018 Jan 1
EventSID Symposium, Seminar, and Exhibition 2018, Display Week 2018 - Los Angeles, United States
Duration: 2018 May 202018 May 25

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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