Power saving display mode for organic electroluminescent displays

• US 20050110717A1
• Filed: 11/25/2003
• Published: 05/26/2005
• Est. Priority Date: 11/25/2003
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Iwamura, Ryuichi
• Granted Patent: US 7,312,771 B2
• Time in Patent Office: Days
• US Class Current: 345/76
• 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: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

An improved organic electroluminescent display includes a plurality of normal mode colors and a plurality of user-selected power saving mode colors. The display is switchable between a normal display mode and a power saving display mode. In the normal display mode, the normal mode colors are displayed by the display. Conversely, in the power saving display mode, the power saving mode colors are displayed by the display.

Claims

1. In an electroluminescent display, the improvement comprising:

providing a plurality of normal mode colors; and

providing a plurality of power saving mode colors;

wherein each power saving mode color is assigned to a normal mode color;

wherein during a power saving display mode, each normal mode color having an assigned power saving mode color is switched to the assigned power saving mode color.

2. An improved electroluminescent display as recited in claim 1, wherein each normal mode color not having an assigned power saving mode color is reversed during a power saving display mode.

3. An improved electroluminescent display as recited in claim 2, wherein a user can assign each power saving mode color to a normal mode color.

4. An improved electroluminescent display as recited in claim 3, further comprising:

a power saving indicator, the power saving indicator showing the reduction in energy consumed by the display when in the power saving display mode.

5. An improved electroluminescent display as recited in claim 1, wherein the power saving display mode is entered manually.

6. An improved electroluminescent display as recited in claim 1, wherein the power saving display mode is entered automatically.

7. An improved electroluminescent display as recited in claim 1, wherein the display comprises an organic electroluminescent display.

8. A method for conserving power in an electroluminescent display, comprising:

providing a plurality of normal mode colors;

providing a plurality of power saving mode colors, each power saving mode color being assigned to a normal mode color; and

in a power saving display mode, switching each normal mode color having an assigned power saving mode color to the assigned power saving mode color.

9. A method as recited in claim 8, further comprising:

allowing a user to assign each power saving mode color to a normal mode color.

10. A method as recited in claim 9, further comprising:

reversing each normal mode color not having an assigned power saving mode color in the power saving display mode.

11. A method as recited in claim 10, further comprising:

indicating the reduction in energy consumed by the display when switched to the power saving display mode.

12. A method as recited in claim 8, wherein the power saving display mode is entered manually.

13. A method as recited in claim 8, wherein the power saving display mode is entered automatically.

14. In an electroluminescent display, the improvement comprising:

providing a plurality of normal mode colors; and

providing a plurality of power saving mode colors;

wherein the display is switchable between a normal display mode in which the normal mode colors are displayed and a power saving display mode in which the power saving mode colors are displayed.

15. An improved electroluminescent display as recited in claim 14, wherein each power saving mode color is assigned to a normal mode color.

16. An improved electroluminescent display as recited in claim 15, wherein a user can assign each power saving mode color to a normal mode color.

17. An improved electroluminescent display as recited in claim 16, wherein each normal mode color not having an assigned power saving mode color is reversed in the power saving display mode.

18. An improved electroluminescent display as recited in claim 17, further comprising:

a power saving indicator, the power saving indicator showing the reduction in energy consumed by the display when in the power saving display mode.

19. An improved electroluminescent display as recited in claim 14, wherein the power saving display mode is entered manually.

20. An improved electroluminescent display as recited in claim 14, wherein the power saving display mode is entered automatically.

21. An improved electroluminescent display as recited in claim 14, wherein the display comprises an organic electroluminescent display.