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SEMICONDUCTOR DEVICE AND ELECTRONIC DEVICE

  • US 20140145985A1
  • Filed: 11/21/2013
  • Published: 05/29/2014
  • Est. Priority Date: 11/29/2012
  • Status: Active Grant
First Claim
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1. A semiconductor device comprising:

  • a touch panel controller operable to perform pulse-drive control on one electrodes of a touch panel and detection control of touch signals arising on the other electrodes capacitively coupling with the one electrodes;

    a processor operable to perform control of the touch panel controller; and

    a display driver operable to perform drive control of a display panel,wherein the processor returns to its workable state from Sleep state each time a given length of time elapses, causes the touch panel controller to perform an action of detecting a touch/no touch, andwhen the processor cannot acquire a result of judgment as “

    being touched”

    , the processor returns to Sleep state again, and waits for a given length of time to elapse.

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