WHITE-BASED POWER SAVINGS

• US 20100277648A1
• Filed: 07/19/2010
• Published: 11/04/2010
• Est. Priority Date: 05/04/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Plut, William J.
• Granted Patent: US 9,785,215 B2
• Time in Patent Office: Days
• US Class Current: 348/655
• 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

Described herein are power conservation techniques that reduce power consumption for an electronics device including a display. The techniques divide video information for display into white and non-white video information. The white video information is altered such that the alteration decreases the amount of power required to display the white video information. The altered white video information and non-white video information are then visually output together. White-based power conservation as described herein may be performed while a person uses the electronics device, which reduces power consumption continually during usage.

Claims

1. A method for reducing power consumed by an electronics device that includes a display device, the method comprising:

identifying white video information included in video information for display on the display device;

altering the white video information such that the display device will consume less power when displaying the altered white video information than an amount of power that would be required to display the white video information without the alteration; and

displaying the altered white video information with non-white video information included in the video information for display that was not identified as the white video information.

2. The method of claim 1 wherein identifying the video information comprises applying a white threshold to the video information.

3. The method of claim 2 wherein the video information is represented according to an RGB scheme and the white threshold comprises a red threshold, a blue threshold, and a green threshold.

4. The method of claim 3 wherein the red threshold, the blue threshold, and the green threshold are different.

5. The method of claim 1 wherein altering the white video information comprises replacing the white video information with a replacement white.

6. The method of claim 4 wherein the replacement white comprises a red value greater than 220, a blue value greater than 230, and a green value greater than 220.

7. The method of claim 5 wherein the replacement white includes a predetermined shade of white.

8. The method of claim 1 wherein the altered white video information is represented according to an RGB scheme and the altered white video information comprises an altered red value, an altered blue value, and an altered green value and the altered blue value is greater than the altered red value and greater than the altered green value.

9. The method of claim 8 wherein the altered blue value is greater than 240.

10. The method of claim 1 wherein the display device is an OLED device.

11. The method of claim 1 wherein the display device is included in one of a laptop computer, a handheld computer, a portable phone or a portable music player.

12. A method for reducing power consumed by an electronics device that includes a display device, the method comprising:

identifying white video information included in video information for display on the display device;

altering the white video information such that the display device will consume less power when displaying the altered white video information than an amount of power that would be required to display the white video information without the alteration,

wherein the altered white video information is represented according to an RGB scheme and the altered white video information comprises an altered red value, an altered blue value, an altered green value, and the altered blue value is greater than the altered red value or the altered green value; and

simultaneously displaying the altered white video information with non-white video information included in the video information for display that was not identified as the white video information.

13. The method of claim 12 wherein identifying the video information comprises applying a white threshold to the video information.

14. The method of claim 12 wherein the altered blue value is greater than 240.

15. A non-transitory computer readable medium including instructions for reducing power consumed by an electronics device that includes a display device, the computer-readable medium comprising:

instructions for identifying white video information included in video information for display on the display device;

instructions for altering the white video information such that the display device will consume less power when displaying the altered white video information than an amount of power that would be required to display the white video information without the alteration; and

instructions for displaying the altered white video information with non-white video information included in the video information for display that was not identified as the white video information.

16. The computer readable medium of claim 15 further comprising instructions for applying a white threshold to the video information.

17. The computer readable medium of claim 15 wherein altering the white video information comprises replacing the white video information with a replacement white.

18. The computer readable medium of claim 17 wherein the replacement white comprises a red value greater than 220, a blue value greater than 230, and a green value greater than 220.

19. The computer readable medium of claim 15 wherein the altered white video information is represented according to an RGB scheme and the altered white video information comprises an altered red value, an altered blue value, and an altered green value and the altered blue value is greater than the altered red value and greater than the altered green value.

20. The computer readable medium of claim 15 wherein the display device is an OLED device.