Premium
P‐21: A Low‐Power Transflective TFT‐LCD Based On IGZO TFT
Author(s) -
Lou Tenggang,
Wang Lei,
Kong Xiangjian,
Liu Jine,
Qin Feng
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14893
Subject(s) - thin film transistor , liquid crystal display , flicker , power consumption , materials science , optoelectronics , transistor , crosstalk , power (physics) , optics , electrical engineering , voltage , engineering , physics , layer (electronics) , quantum mechanics , composite material
We have developed a transflective TFT‐LCD device based on IGZO TFT(thin film transistor) using GIP and Demux driving circuit. The average flicker is −62.35dB when in reflective mode driving in 1Hz while −55dB in transmissive mode driving in 60Hz. The flicker and the visual effect still performance well after RA(reliability analysis) test. The flicker after RA test almost unchanged comparing with the LCD without RA test. The average contrast ratio is 24.9 in reflective mode while 33.4 in transmissive mode. The power consumption average reduced by 40% in 1Hz reflective mode contrasting to 60Hz in transmissive mode while in black, white, red, green, blue, grey, flicker, crosstalk, checkpixel image. We proved the power consumption can be reduced by even more if IC is well designed. The transflective LCD device supports 256 grey.