Telephone apparatus

• US 20060105814A1
• Filed: 05/23/2003
• Published: 05/18/2006
• Est. Priority Date: 06/19/2002
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Monden, Takao, Yokose, Hazuki
• Application Number:
  US10/518,192
• Publication Number:
  US 20060105814A1
• Time in Patent Office: Days
• US Class Current: 455/566
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones
• CPC Class Codes: H04W 52/027 by controlling a display operation or backlight unit
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

It is an object of the present invention to provide a portable telephone in which a display portion can be used as a mirror and electric power can be saved under a key locked state. In the telephone according to the present invention, in a front surface of a display portion (10), a panel (8) that is brought into a transparent state when voltage is not applied thereto, and is brought into a mirror surface state when voltage is applied is arranged. When the telephone is set to a key locked state, the panel (8) is brought to the mirror surface state and the display of the display portion (10) is turned off. Under a specific condition that, for instance, a call is received in the key locked state, the panel (8) can be suitably brought to the transparent state and the display of the display portion (10) can be turned on. Under a key unlocked state, while any key is operated, at least the panel (8) is brought to the transparent state and the display of the display portion (10) is turned on. When the key is not operated for a prescribed time, the panel (8) is brought to the mirror surface state and the display of the display portion (10) is turned off.

Claims

1. A telephone, comprising:

a display portion;

a panel, which is provided on a display surface side of the display portion, and which changes from a transparent state to a mirror surface state when voltage is applied to the panel; and

a control unit, which brings the panel to the mirror surface state and turns off the power of the display portion when a key locked state is set.

2. The telephone as set forth in claim 1, further comprising a second control unit which brings the panel to the transparent state and turns on the power of the display portion when a call is received under the key locked state.

3. The telephone as set forth in claim 2, further comprising a third control unit which brings the panel to the mirror surface state and turns off the power of the display portion when a response to the received call is performed.

4. The telephone as set forth in claim 1, wherein the second control unit is provided for bringing the panel to the transparent state and turning on the power of the display portion when there is unrecognized call receiving history information or an unrecognized receiving mail under the key locked state.

5. The telephone as set forth in claim 4, wherein the third control unit is provided for bringing the panel to the mirror surface state and turning off the power of the display portion when a recognition of the unrecognized call receiving history information or the unrecognized receiving mail is performed.