Window information preservation for spatially varying power conservation

• US 7,786,988 B2
• Filed: 06/20/2005
• Issued: 08/31/2010
• Est. Priority Date: 07/16/2003
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Honeywood Technologies LLC
• Inventors: Plut, William J.
• Primary Examiner(s): Mengistu, Amare
• Assistant Examiner(s): LAM, VINH TANG
• Application Number:
  US11/157,210
• Publication Number:
  US 20060001659A1
• Time in Patent Office: 1,898 Days
• Field of Search: 345/52, 345/211, 315/169.1
• US Class Current: 345/211
• CPC Class Codes: G06F 1/3218 of display devices
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: G09G 2310/04 Partial updating of the display screen
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/0646 Modulation of illumination source brightness and image signal correlated to each other
• CPC Class Codes: G09G 2320/0686 with two or more screen areas displaying information with different brightness or colours
• CPC Class Codes: G09G 2330/022 in absence of operation, e.g. no data being entered during a predetermined time
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/36 using liquid crystals
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

Described herein are systems and methods that reduce power consumption for an electronics device that includes a display device. The systems and methods identify characteristic window video information for a window that allows a person to visually locate the window in a display area for the display device. Video information in the display area other than the characteristic window video information is altered to conserve power. Preserving the characteristic window video information for the window maintains a person'"'"'s ability to see and locate the window at a later time, even though other portions of the display area have been altered and potentially visually degraded to conserver power.

Claims

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

identifying characteristic window video information for a window that a) includes characteristic color information for a border portion of the window and b) allows a person to visually locate the window in a display area for the display device;

preserving the characteristic window video information;

altering video information in the display area including internal video information in an internal portion of the window that is spatially within the border portion to produce altered video information, such that the display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and

displaying the altered video information with the preserved characteristic window video information.

2. The method of claim 1 wherein preserving the characteristic window video information includes not altering the characteristic window video information.

3. The method of claim 1 wherein preserving the characteristic window video information includes preserving text in the border portion.

4. The method of claim 3 wherein the window and border portion have a rectangular shape.

5. The method of claim 4 wherein the internal video information includes a central portion of the window spatially within the rectangular border portion.

6. The method of claim 1 wherein the display area includes multiple windows and the characteristic window video information is identified for only a single window.

7. The method of claim 1 wherein the display area includes multiple windows and the characteristic window video information is identified for each window.

8. The method of claim 1 wherein the window outputs video information for one of:

a word processing program, an Internet Browser interface, a graphics control, a music player program, and a video game.

9. The method of claim 1 wherein the alteration comprises a luminance reduction for the video information in the display area other than the characteristic window video information.

10. The method of claim 1 wherein the display device is a liquid crystal (LCD) display device device.

11. The method of claim 1 wherein further comprising a second alteration of the video information in the display area other than the characteristic window video information.

12. The method of claim 1 wherein the display device is an organic light emitting diode (OLED) display device.

13. 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.

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

identifying characteristic window video information for a border portion of a window, wherein the characteristic window video information includes characteristic color information for the window for the border portion of the window and allows a person to visually locate the window in a display area for the display device;

preserving the characteristic window video information;

altering video information in the display area including internal video information in an internal portion of the window that is spatially within the border portion to produce altered video information, such that the display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and

displaying the altered video information with the preserved characteristic window video information.

15. The method of claim 14 wherein preserving the characteristic window video information includes not altering the characteristic window video information.

16. The method of claim 14 wherein the internal video information includes a central portion of the window spatially within a rectangular border portion.

17. The method of claim 14 wherein the alteration comprises a luminance reduction for the video information in the display area other than the characteristic window video information.

18. The method of claim 14 wherein the display device is an OLED device.

19. A 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 characteristic window video information for a window that a) includes characteristic color information for a border portion of the window and b) allows a person to visually locate the window in a display area for the display device;

instructions for preserving the characteristic window video information;

instructions for altering video information in the display area including internal video information in an internal portion of the window that is spatially within the border portion to produce altered video information, such that the display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and

instructions for displaying the altered video information with the preserved characteristic window video information.

20. The computer readable medium of claim 19 further comprising instructions for preserving the characteristic window video information includes not altering the characteristic window video information.