標題: Active in-cell touch circuit using floating common electrode as sensing pad for the large size in-plane-switching liquid crystal displays
作者: Tai, Ya-Hsiang
Lin, Chi-Hao
Cheu, Wei-Jia
光電工程學系
Department of Photonics
關鍵字: active in-cell touch;floating common electrode;in-plane-switching;liquid crystal display
公開日期: 1-Oct-2017
摘要: In this paper, we propose an in-cell active touch circuit using the concept of floating common electrode for large size in-plane-switching liquid crystal displays. Compared with the conventional passive in-cell touch circuit, the proposed method can greatly reduce the readout channel numbers by sharing the sensing bus for one column. Because the touch signal is amplified in the pixel, the touch panel can be easily scaled up in size. Simulation results show that the difference between touch and no-touch signals can be as large as 10A even with threshold voltage shift of +/- 1V. The possible issues of the proposed method are experimentally verified.
URI: http://dx.doi.org/10.1002/jsid.611
http://hdl.handle.net/11536/144243
ISSN: 1071-0922
DOI: 10.1002/jsid.611
期刊: JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
Volume: 25
起始頁: 610
結束頁: 620
Appears in Collections:Articles