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Semiconductor device

  • US 9,619,067 B2
  • Filed: 03/04/2015
  • Issued: 04/11/2017
  • Est. Priority Date: 03/18/2014
  • Status: Active Grant
First Claim
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1. A semiconductor device configured for connection to a composite panel having a display panel and a touch panel laminated therein, comprising:

  • a display signal drive circuit; and

    a touch detection signal drive circuit,wherein the display signal drive circuit is configured to output a display signal having a signal level based on a common voltage to the display panel, and the touch detection signal drive circuit is configured to output a touch detection signal to the touch panel,wherein the display signal drive circuit comprises a switch configured to make the touch detection signal have a signal level based on the common voltage in case that the composite panel is an in-cell type, and configured to make the touch detection signal have a signal level based on a voltage level other than the common voltage in case that the composite panel is an on-cell type.

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