Premium
A single‐cell‐gap transflective LCD using active‐level‐shift technology
Author(s) -
Ahn Seon Hong,
Cho Yong Seok,
Jang Yong Kyu,
Kim Chi Woo
Publication year - 2010
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid18.4.266
Subject(s) - liquid crystal display , materials science , boosting (machine learning) , optoelectronics , computer science , electrode , pixel , optics , artificial intelligence , physics , quantum mechanics
— A single‐cell‐gap transflective LCD using active‐level‐shift (ALS) technology has been developed and is presented. An efficient pixel architecture has recently been designed to apply different voltages on transmissive and reflective subpixels through two separated storage capacitors, formed by a boosting electrode and pixel electrodes. A 2.2‐in. vertical‐alignment‐mode (VA) transflective LCD prototype with a similar gamma for both the transmissive and reflective areas was obtained. Compared to a conventional dual‐cell‐gap design, the new single‐cell‐gap design achieves a 17% higher aperture ratio and the contrast increased from 200:1 to 500:1.