A Touch Sensitive Liquid Crystal Display with Embedded Capacitance Detector Arrays

被引：0

作者：

Park, Hyun-Sang ^{[1
]}

Ji, Seon-Beom ^{[1
]}

Lee, Soo-Yeon ^{[1
]}

Han, Min-Koo ^{[1
]}

Lee, Jae-Hoon ^{[2
]}

Lee, Byoung-Jun ^{[2
]}

You, Bong-Hyun ^{[2
]}

Kim, Nam-Deog ^{[2
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Seoul, South Korea

[2] Samsung Elect Co, LCD Business, LCD Technol Ctr, Asan, Chungcheongnam, South Korea

来源：

2009 SID INTERNATIONAL SYMPOSIUM DIGEST OF TECHNICAL PAPERS, VOL XL, BOOKS I - III | 2009年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a new touch sensitive liquid crystal display (LCD) with embedded capacitance sensor arrays which incorporate hydrogenated amorphous silicon (a-Si: H) thin-film transistors (TFTs) and coupling capacitors. The proposed system utilizes the change in the capacitance of liquid crystal for touch-panel operation and provides the location of the finger touch by obtaining the intersection point for the horizontal and vertical positions, thereby obviating the need for image capturing and real-time image processing. By limiting the operation of the TFTs to the subthreshold region, we can suppress the degradation of a-Si: H TFTs. Due to the simple architecture, the proposed touch-panel function can be readily integrated within large-area displays.

引用

页码：574 / +

页数：2