43.4: An In‐Cell Capacitive Touch‐Sensor Integrated in an LTPS WSVGA TFT‐LCD

Satoru Tomita,Takashi Nakamura,Tetsuo Morita,Takayuki Imai,Takashi Okada,Hirotaka Hayashi,Yasuo Saruhashi,Masayoshi Fuchi,Miyuki Hashimoto,Masahiro Tada,Takahiko Endo,Keiichi Saito,Hiroki Nakamura,Hideyuki Takahashi

43.4: An In‐Cell Capacitive Touch‐Sensor Integrated in an LTPS WSVGA TFT‐LCD

2011

Satoru Tomita
Takashi Nakamura
Tetsuo Morita
Takayuki Imai
Takashi Okada
Hirotaka Hayashi
Yasuo Saruhashi
Masayoshi Fuchi
Miyuki Hashimoto
Masahiro Tada
Takahiko Endo
Keiichi Saito
Hiroki Nakamura
Hideyuki Takahashi

We have developed an in-cell capacitive touch-sensor integrated in an LTPS 7″ WSVGA TFT-LCD. The prototype having 256×150 sensors shows advantages such as smooth operation with no touch force, high position accuracy, multi-touch (10 or more), thin and light LCD module, and thus is suitable for various applications.

Keywords:

Thin-film transistor
Capacitive sensing
Electronic engineering
Liquid-crystal display
Materials science
Electrical engineering

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