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Portable telephone with liquid crystal display

  • US 6,426,736 B1
  • Filed: 12/23/1999
  • Issued: 07/30/2002
  • Est. Priority Date: 12/28/1998
  • Status: Expired due to Term
First Claim
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1. A portable telephone having a liquid crystal display with a backlight, comprising a touch sensor arranged on a side surface of a main body, and an operation unit arranged on a front surface of the main body which has said liquid crystal display to input a telephone number, wherein said portable telephone has two modes, a touch mode for said touch sensor in lighting said backlight and a key operation mode by said operation unit in lighting said backlight, and said backlight is lit in accordance with one of the two modes which is selected by a user.

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