Electronic device and display control method

• US 20050097469A1
• Filed: 09/21/2004
• Published: 05/05/2005
• Est. Priority Date: 09/30/2003
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Kasashima, Masahiko
• Application Number:
  US10/944,948
• Publication Number:
  US 20050097469A1
• Time in Patent Office: Days
• US Class Current: 715/718
• CPC Class Codes: G06F 3/1431 using a single graphics controller
• CPC Class Codes: G09G 2340/125 wherein one of the images is motion video
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: H04N 21/414 Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
• CPC Class Codes: H04N 21/436 Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home

Abstract

An electronic device includes a display, a connector to which an external video signal is input, and a control unit which performs signal switching with respect to an internal display signal and the external video signal input to the connector to display one of these signals on the display.

Claims

1. An electronic device, comprising:

a display;

a connector to which an external video signal is input; and

a control unit which performs signal switching with respect to an internal display signal and the external video signal input to the connector to display one of these signals on the display.

2. The electronic device according to claim 1, further comprising

a second connector to which an external display signal is input;

wherein the control unit performs signal switching with respect to the internal display signal, the external display signal input to the second connector and the external video signal input to the first connector to display one of these signals on the display.

5. The electronic device according to claim 1, further comprising a switching unit which switches a circuit, which is brought in a low-power consumption mode due to the signal switching.

3. An electronic device, comprising:

a display;

a first connector to which an external display signal is input;

a second connector to which an external video signal is input;

a first control unit which performs signal switching with respect to an internal display signal and the external display signal input to the first connector to display one of these signals on the display; and

a second control unit which performs signal switching with respect to the internal display signal and the external video signal input to the second connector to display one of these signals.

4. The electronic device according to claim 3, wherein the second unit performs signal switching with respect to the internal display signal and the external video signal input to the second connector to display simultaneously display these signals on the display.

6. A display control method of controlling a display of an electronic device, the method comprising:

inputting an external video signal to a first connector provided in the display; and

performing signal switching with respect to an internal display signal and the external video signal input to the first connector to display one of these signals on the display.

7. The display control method according to claim 6, further comprising:

inputting an external display signal to a second connector; and

performing signal switching with respect to the internal display signal, the external display signal input to the second connector and the external video signal input to the first connector to display one of these signals on the display.

10. The display control method according to claim 6, further comprising switching a circuit, which is brought in a low-power consumption mode due to the signal switching.

8. A display control method of controlling a display of an electronic device, the method comprising:

inputting an external display signal to a first connector;

inputting an external video signal to a second connector;

performing signal switching with respect to an internal display signal and the external display signal input to the first connector to display one of these signals on the display; and

performing signal switching with respect to the internal display signal and the external video signal input to the second connector to display one of these signals.

9. The display control method according to claim 8, further comprising performing signal switching with respect to the internal display signal and the external video signal input to the second connector to display simultaneously display these signals on the display.