Information processing apparatus and display light control method

• US 20020036637A1
• Filed: 03/16/2001
• Published: 03/28/2002
• Est. Priority Date: 09/22/2000
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshibo
• Original Assignee: Kabushiki Kaisha Toshibo
• Inventors: Ogawa, Kiyohisa
• Application Number:
  US09/809,035
• Publication Number:
  US 20020036637A1
• Time in Patent Office: Days
• US Class Current: 345/212
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

An information processing apparatus has a display with a light source for illumination. A table holds a monitor time for monitoring a state where an input operation is being stopped for each application program or its operating status. A screen control program measures an elapsed time from a point of time when an input operation for the application program is stopped. The screen control program determines, based on the held monitor time and the measured elapsed time, whether or not the elapsed time for the application program has reached the monitor time, and reduces brightness of the light source when the elapsed time has reached the monitor time.

Claims

1. An information processing apparatus comprising:

a display with a light source for illumination;

means for holding a monitor time for monitoring a state where an input operation is being stopped for each application program or its operating status;

means for measuring an elapsed time from a point of time when an input operation for the application program is stopped;

means for determining, based on the held monitor time and the measured elapsed time, whether or not the elapsed time for the application program has reached the monitor time; and

means for reducing brightness of the light source when the determining means determines that the elapsed time has reached the monitor time.

2. The apparatus according to claim 1, further comprising:

means for storing status information indicating whether or not the brightness of the light source is reduced; and

means, responsive to an input operation for the application program, for restoring the brightness of the light source in a case where the status information indicates that the brightness of the light source is reduced.

3. The apparatus according to claim 1, further comprising:

means for providing a user interface to allow a user to set the monitor time for each application program or its operating status.

4. The apparatus according to claim 1, further comprising:

means for providing a user interface to allow a user to enable/disable a monitor operation for each application program or its operating status, wherein

in a case where the monitor operation is enabled, the brightness of the light source is capable of being reduced by the reducing means, and in a case where the monitor operation is disabled, the brightness of the light source is not capable of being reduced by the reducing means.

5. The apparatus according to claim 1, further comprising:

means for, in a case where an error occurs in the application program, delaying a point of time when the reducing means reduces the brightness of the light source.

6. The apparatus according to claim 5, further comprising:

means for providing a user interface to allow a user to set an amount of time to be delayed by the delaying means for each application program or its operating status.

7. A display light control method applied to an information processing apparatus having a display with a light source for illumination, comprising:

holding a monitor time for monitoring a state where an input operation is being stopped for each application program or its operating status;

measuring an elapsed time from a point of time when an input operation for the application program is stopped;

determining, based on the held monitor time and the measured elapsed time, whether or not the elapsed time for the application program has reached the monitor time; and

reducing brightness of the light source when the elapsed time has reached the monitor time.

8. The method according to claim 7, further comprising:

storing status information indicating whether or not the brightness of the light source is reduced; and

in response to an input operation for the application program, restoring the brightness of the light source in a case where the status information indicates that the brightness of the light source is reduced.

9. The method according to claim 7, further comprising:

allowing a user to set the monitor time for each application program or its operating status.

10. The method according to claim 7, further comprising:

allowing a user to enable/disable a monitor operation for each application program or its operating status, wherein

in a case where the monitor operation is enabled, the brightness of the light source is capable of being reduced, and in a case where the monitor operation is disabled, the brightness of the light source is not capable of being reduced.

11. The method according to claim 7, further comprising:

in a case where an error occurs in the application program, delaying a point of time when the brightness of the light source is reduced.

12. The method according to claim 11, further comprising:

allowing a user to set an amount of time to be delayed in the delaying for each application program or its operating status.