Title:
CONTROL CIRCUIT AND NOISE REMOVING METHOD FOR TOUCH SCREEN
Document Type and Number:
WIPO Patent Application WO/2014/042489
Kind Code:
A2
Abstract:
Disclosed are a control circuit and a noise removing method for a touch screen. The present invention includes technology for performing differential sensing on the outputs of two adjacent sensing lines of a touch screen panel and integrating a differential sensing signal to filter noises. The control circuit and noise filtering according to the present invention may remove the display noise, tri-wave lamp noise having a predetermined frequency, 60Hz noise and charger noise caused by battery charging that might affect the two adjacent sensing lines.
Inventors:
YANG JUN HYEOK (KR)
CHOI JUNG MIN (KR)
CHOI JUNG MIN (KR)
Application Number:
PCT/KR2013/008435
Publication Date:
March 20, 2014
Filing Date:
September 17, 2013
Export Citation:
Assignee:
SILICON WORKS CO LTD (KR)
Domestic Patent References:
| WO2012090537A1 | 2012-07-05 |
Foreign References:
| KR20120017887A | 2012-02-29 | |||
| US20110187390A1 | 2011-08-04 | |||
| KR20110105022A | 2011-09-26 | |||
| US20110084923A1 | 2011-04-14 |
Attorney, Agent or Firm:
LEE, CHEOL HEE (KR)
이철희 (KR)
이철희 (KR)
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