Power efficient screens through display size reduction

• US 20070296684A1
• Filed: 06/21/2006
• Published: 12/27/2007
• Est. Priority Date: 06/21/2006
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Thomas, Vishal, Desai, Prasanna
• Granted Patent: US 7,605,795 B2
• Time in Patent Office: Days
• US Class Current: 345/102
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0464 Positioning
• CPC Class Codes: G09G 3/3426 the different display panel areas being distributed in two dimensions, e.g. matrix

Abstract

According to some embodiments, an apparatus, a system and a method are provided to reduce a backlit area of a display screen and resize an image to fit in the backlit area.

Claims

1. An apparatus comprising:

a processor;

a plurality of backlight lamps, wherein the backlight lamps illuminate a display screen;

a medium storing instructions adapted to be executed by the processor to perform a method, the instructions comprising;

instructions to reduce a backlit area of the display screen; and

instructions to resize an image to fit in the backlit area on the display screen.

2. The apparatus of claim 1, wherein to reduce a backlit area comprises:

turning off a portion of the plurality of backlight lamps.

3. The apparatus of claim 2, wherein the plurality of backlight lamps are horizontal.

4. The apparatus of claim 2, wherein the plurality of backlight lamps are vertical.

5. The apparatus of claim 2, wherein the plurality of backlight lamps comprise:

a first portion wherein the backlight lamps are horizontal; and

a second portion wherein the backlight lamps are vertical.

6. The apparatus of claim 1, wherein instructions adapted to be executed by the processor are executed at a defined power level.

7. The apparatus of claim 6, wherein the user defines at least one of, the defined power level, an amount of vertical reduction, or an amount of horizontal reduction.

8. The apparatus of claim 6, wherein instructions adapted to be executed by the processor are executed at a second defined power level.

9. The apparatus of claim 1, wherein the display screen is a liquid crystal diode screen.

10. The apparatus of claim 1, wherein the processor and the medium storing instructions are contained in a mobile device.

11. A method comprising:

determining that a lower power setting will be entered; and

reducing a backlit area of a mobile device display screen, wherein a portion of the display screen is lit.

12. The method of claim 11, wherein reducing a backlit area comprises:

turning off a portion of a plurality of backlight lamps.

13. The method of claim 12, wherein the plurality of backlight lamps run horizontally along the display.

14. The method of claim 12, wherein the plurality of backlight lamps run vertically along the display.

15. The method of claim 12, wherein the plurality of backlight lamps comprise:

a first portion wherein the backlight lamps run horizontally along the display; and

a second portion wherein the backlight lamps run vertically along the display.

16. The method of claim 11, wherein the reducing occurs at a defined power level and resizing occurs at the defined power level.

17. The method of claim 16, wherein the user defines at least one of, the defined power level, an amount of vertical reduction, and an amount of horizontal reduction.

18. The method of claim 16, wherein a second reducing and a second resizing occur at a second defined power level.

19. The method of claim 11, wherein the mobile device display screen is a liquid crystal diode screen.

20. A system comprising:

a battery;

a processor;

a plurality of backlight lamps, wherein the backlight lamps illuminate a display screen;

a lamp controller to reduce a portion of a backlit area of the display screen; and

a medium storing instructions adapted to be executed by the processor to perform a method, the method comprising;

resizing an image to fit in the backlit area on the display screen.

21. The system of claim 20, wherein to reduce a portion of a backlit area comprises:

turning off a portion of the plurality of backlight lamps.

22. A medium storing instructions adapted to be executed by the processor to perform a method, the method comprising:

reducing a backlit area of the display screen; and

resizing an image to fit in the backlit area on the display screen

23. The medium of claim 22, wherein reducing a backlit area comprises:

turning off a portion of a plurality of backlight lamps.