SuperC-Touch’s 6th patent for touch panel open to make sales

SuperC-Touch’s 6th patent for touch panel open to make sales

China Certificated No. CN201010001496.6 (invention)

Name: Projected Capacitive touch panel device

Price: 2,000,000. USD

Description:

The real single layer ITO touch panel, compared to the panel which used metal crossover structure, save two Photolithography in produce process, so the cost can lower 30%. Today, this single layer ITO structure touch panel which mainly uses the triangular pattern electrodes is widely applied in inexpensive products. In China, 130 million affordable mobile phones which use single layer ITO electrode sold each year. However, when panel size increases, the accuracy of single layer ITO touch panel will be substantially reduced, so it can only be used in small-sized products, but not be used in the tablet and Ultra book.

The purpose of the present invention is to solve this problem. First, applying conservation of energy to measure the ITO electrode's resistance value and converting it into a distance value to obtain the coordinate of one axis, then, by measuring the difference in capacitance value ​​to get a coordinate of another axis. The method of present invention can be applied to produce single-layer structure of ITO touch panel without size limitation, from 3.5 inches to 80 inches can be. So, it is the best solution for entering the cheap tablet and Ultra book market.

SUMMARY OF THE PATENT:

The present invention relates to a capacitive touch panel device which include a touch panel, a multiplexer, a 1^ST switch, a 2^nd switch, a 3^rd switch, a 4^th switch, a resistor, a capacitor, an analog to digital converter and an Integrator circuit. The touch panel comprises a plurality of conductive lines and the multiplexer is electrically connected to the plurality of conductive lines. The 1ST switch is electrically connected to the multiplexer, the 2nd switch, a capacitor and the 3^rd switch; the 2nd switch is electrically connected to the 1ST switch, a capacitor, the resistor and the Integrator circuit; the 3^rd switch is electrically connected to a voltage source, the 4^th switch, a capacitor and 1^st switch; the 4^th switch is electrically connected to the analog to digital converter, the 3^rd switch and Integrator circuit. The present invention is to utilize the principle of conservation of energy for designing of touch panel device; to avoid the Induced capacitance changes caused by touch area changes, thereby improving the accuracy of position detection and the production yield.

Full text of the present patent

http://www.superc-touch.com/doc-my/pn-201118699.pdf

If you seniors have further issues to discuss, welcome to Email me.

SuperC-Touch will do our best to provide you answers and solutions, thank you.

SuperC Touch Standly Lee

Email:  superctouch@yahoo.com.tw