Gate driver circuit using pre-charge structure and time-division multiplexing driving scheme for active-matrix LCDs integrated with in-cell touch structures

Chih Lung Lin, Ming Yang Deng, Chia En Wu, Po Syun Chen, Ming Xun Wang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This paper presents a new gate driver circuit for active-matrix liquid crystal displays with an in-cell touch structure designed by hydrogenated amorphous silicon thin-film transistors. To increase the reporting rate of a touch panel, the proposed circuit can be used to pause display operations to perform touch sensing operations several times per frame. The proposed circuit exploits a pre-charge structure that alleviates the leakage current and long-term stress of a driving TFT during the touch sensing operation. Simulation results confirm that the proposed gate driver circuit can generate a highly uniform output waveform after each touch sensing operation that lasts for 200 μs when the circuit is operate at 85 °C. The variations of the rising and falling time are suppressed below 3.71%, confirming the feasibility of use of the proposed gate driver circuit for an in-cell touch panel.

Original languageEnglish
Article number7548316
Pages (from-to)1238-1241
Number of pages4
JournalJournal of Display Technology
Volume12
Issue number11
DOIs
Publication statusPublished - 2016 Nov

Fingerprint

time division multiplexing
Time division multiplexing
touch
Liquid crystal displays
Networks (circuits)
matrices
cells
Thin film transistors
Amorphous silicon
falling
Leakage currents
amorphous silicon
waveforms
leakage
transistors
Display devices
liquid crystals
output
thin films

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{4216dac41d534a799976b2bb335e4768,
title = "Gate driver circuit using pre-charge structure and time-division multiplexing driving scheme for active-matrix LCDs integrated with in-cell touch structures",
abstract = "This paper presents a new gate driver circuit for active-matrix liquid crystal displays with an in-cell touch structure designed by hydrogenated amorphous silicon thin-film transistors. To increase the reporting rate of a touch panel, the proposed circuit can be used to pause display operations to perform touch sensing operations several times per frame. The proposed circuit exploits a pre-charge structure that alleviates the leakage current and long-term stress of a driving TFT during the touch sensing operation. Simulation results confirm that the proposed gate driver circuit can generate a highly uniform output waveform after each touch sensing operation that lasts for 200 μs when the circuit is operate at 85 °C. The variations of the rising and falling time are suppressed below 3.71{\%}, confirming the feasibility of use of the proposed gate driver circuit for an in-cell touch panel.",
author = "Lin, {Chih Lung} and Deng, {Ming Yang} and Wu, {Chia En} and Chen, {Po Syun} and Wang, {Ming Xun}",
year = "2016",
month = "11",
doi = "10.1109/JDT.2016.2601948",
language = "English",
volume = "12",
pages = "1238--1241",
journal = "IEEE/OSA Journal of Display Technology",
issn = "1551-319X",
publisher = "IEEE Computer Society",
number = "11",

}

Gate driver circuit using pre-charge structure and time-division multiplexing driving scheme for active-matrix LCDs integrated with in-cell touch structures. / Lin, Chih Lung; Deng, Ming Yang; Wu, Chia En; Chen, Po Syun; Wang, Ming Xun.

In: Journal of Display Technology, Vol. 12, No. 11, 7548316, 11.2016, p. 1238-1241.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Gate driver circuit using pre-charge structure and time-division multiplexing driving scheme for active-matrix LCDs integrated with in-cell touch structures

AU - Lin, Chih Lung

AU - Deng, Ming Yang

AU - Wu, Chia En

AU - Chen, Po Syun

AU - Wang, Ming Xun

PY - 2016/11

Y1 - 2016/11

N2 - This paper presents a new gate driver circuit for active-matrix liquid crystal displays with an in-cell touch structure designed by hydrogenated amorphous silicon thin-film transistors. To increase the reporting rate of a touch panel, the proposed circuit can be used to pause display operations to perform touch sensing operations several times per frame. The proposed circuit exploits a pre-charge structure that alleviates the leakage current and long-term stress of a driving TFT during the touch sensing operation. Simulation results confirm that the proposed gate driver circuit can generate a highly uniform output waveform after each touch sensing operation that lasts for 200 μs when the circuit is operate at 85 °C. The variations of the rising and falling time are suppressed below 3.71%, confirming the feasibility of use of the proposed gate driver circuit for an in-cell touch panel.

AB - This paper presents a new gate driver circuit for active-matrix liquid crystal displays with an in-cell touch structure designed by hydrogenated amorphous silicon thin-film transistors. To increase the reporting rate of a touch panel, the proposed circuit can be used to pause display operations to perform touch sensing operations several times per frame. The proposed circuit exploits a pre-charge structure that alleviates the leakage current and long-term stress of a driving TFT during the touch sensing operation. Simulation results confirm that the proposed gate driver circuit can generate a highly uniform output waveform after each touch sensing operation that lasts for 200 μs when the circuit is operate at 85 °C. The variations of the rising and falling time are suppressed below 3.71%, confirming the feasibility of use of the proposed gate driver circuit for an in-cell touch panel.

UR - http://www.scopus.com/inward/record.url?scp=84994716215&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84994716215&partnerID=8YFLogxK

U2 - 10.1109/JDT.2016.2601948

DO - 10.1109/JDT.2016.2601948

M3 - Article

AN - SCOPUS:84994716215

VL - 12

SP - 1238

EP - 1241

JO - IEEE/OSA Journal of Display Technology

JF - IEEE/OSA Journal of Display Technology

SN - 1551-319X

IS - 11

M1 - 7548316

ER -