Abstract

In this paper, a cost-effective touch screen panel with triangle twist (TAT) sensor pattern and its calibration algorithm are proposed. For touch detection, the proposed touch screen panel consists of one drive line to receive sensing information from two sensing lines. The proposed touch screen panel reduces the number of signal lines and bonding pads by about 42% compared to conventional touch screen panels, which decrease both the manufacturing difficulty and costs. By a simple calibration algorithm for the proposed touch screen panel with a TAT sensor pattern in a micro controller unit, the touch performance with respect to accuracy, precision, and linearity is considerably enhanced. The proposed touch screen panel shows reliable touch accuracy with errors less than 2 mm. As shown in the implementation results, the proposed touch screen panel is very effective in reducing manufacturing costs of touch devices, which suffer from implementation issues of signal lines caused by adopting a huge number of touch sensors.

© 2016 IEEE

Plastic optical touch panels for large-scale flexible display

Beom-Jun Cheon, Jun-Whee Kim, and Min-Cheol Oh
Opt. Express 21(4) 4734-4739 (2013)

Optical panel with full multitouch using patterned indium tin oxide

Wen-Yang Chang, Heng-Ju Lin, and Jin-Sheng Chang
Opt. Lett. 36(6) 894-896 (2011)

Defect detection of capacitive touch panel using a nonnegative matrix factorization and tolerance model

Changcheng Jiang, Yanming Quan, and Xingui Lin
Appl. Opt. 55(9) 2331-2338 (2016)

Optical hyperdimensional soft sensing: speckle-based touch interface and tactile sensor

Kei Kitagawa, Kohei Tsuji, Koyo Sagehashi, Tomoaki Niiyama, and Satoshi Sunada
Opt. Express 32(3) 3209-3220 (2024)

Surface plasmon resonance-based highly sensitive optical touch sensor with a hybrid noise rejection scheme

Sarun Sumriddetchkajorn and Kosom Chaitavon
Appl. Opt. 45(1) 172-177 (2006)