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P‐7: In‐Cell‐Touch Display Design Using Gate Driver Circuits Integrated within Active Area and De‐Mux Source Driver
Author(s) -
Tian Chao,
Cao Haiming,
Feng Jiebing,
Li Mingyue,
Guan Yanqing,
Liu Guanghui
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.14880
Subject(s) - multiplexer , driver circuit , liquid crystal display , pixel , integrated circuit , computer hardware , thin film transistor , electronic circuit , interference (communication) , computer science , electronic engineering , electrical engineering , engineering , multiplexing , artificial intelligence , materials science , voltage , channel (broadcasting) , layer (electronics) , composite material , operating system
In this article, we develop a new In‐cell touch TFT LCD display with gate driver circuits integrated within the active area and De‐mux driver. We designed a GOA driver circuit based on LTPS technology, which integrated GOA circuit into AA and realized In‐cell touch technology. Due to the LTPS technology, the GOA TFT device and wiring are integrated within pixels, and the loss of aperture rate is reduced. However, as the GOA circuit is integrated inside Pixel and simultaneously the panel uses De‐mux source driver and In‐cell touch driver, the display data is vulnerable to GOA signal interference. We solved the influence of GOA on display through the new pixel design and De‐mux driver. Finally, we made the 6.53″ De‐mux 1 to 3 In‐cell touch LCD display and got a good display effect.