Pixel element actuation

• US 20070052671A1
• Filed: 09/02/2005
• Published: 03/08/2007
• Est. Priority Date: 09/02/2005
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Childers, Winthrop
• Application Number:
  US11/218,801
• Publication Number:
  US 20070052671A1
• Time in Patent Office: Days
• US Class Current: 345/108
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2320/0613 The adjustment depending on the type of the information to be displayed
• 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 2340/0428 Gradation resolution change
• CPC Class Codes: G09G 2360/18 Use of a frame buffer in a display terminal, inclusive of the display panel
• CPC Class Codes: G09G 3/2029 the sub-frames having non-binary weights
• CPC Class Codes: G09G 3/3466 based on interferometric effect

Abstract

Various embodiments of a method and apparatus for actuating pixel elements are disclosed.

Claims

1. An apparatus comprising:

pixels having interferometric elements actuatable between states; and

a controller configured to actuate the elements to change between a modulating mode and a static mode.

2. The apparatus of claim 1, wherein the controller is configured to select either the modulating mode or the static mode based upon at least a source of power for the apparatus.

3. The apparatus of claim 2, wherein the controller is configured to select the modulating mode in response to the apparatus receiving power from an external source.

4. The apparatus of claim 2, wherein the controller is configured to select the static mode in response to the apparatus receiving power from an internal source.

5. The apparatus of claim 1, wherein the controller is configured to select either the modulating mode or the static mode based upon at least a level of power in a power storage device.

6. The apparatus of claim 1, wherein the controller is configured to select either the modulating mode or the static mode-based upon at least a content of an image to be displayed by the pixels.

7. The apparatus of claim 6, wherein the controller is configured to select the static mode in response to the image including low pixel or color resolution portions.

8. The apparatus of claim 6, wherein the controller is configured to select the modulating mode in response to the image including high pixel or high color resolution portions.

9. The apparatus of claim 6, wherein the controller is configured to operate in a hybrid mode in which the controller actuates a first portion of the pixels in the static mode and a second portion of the pixels in the modulating mode.

10. The apparatus of claim 9, wherein the controller is configured to select the hybrid mode in response to a first portion of an image to be formed by the first portion of the pixels including low pixel or low color resolution and a second portion of the image to be formed by the second portion of the pixels including a high pixel or high color resolution.

11. The apparatus of claim 1, wherein the controller is configured to group pixels into super-pixels based at least upon a content of an image to be formed by the pixels.

12. The apparatus of claim 11, wherein the controller is configured to group pixels forming an edge in the image into a first group having a first size and to group pixels not forming the edge in the image into a second group having a second larger size.

13. The apparatus of claim 11, wherein the controller is configured to group pixels forming a first color resolution portion of an image into a group having a first size and to group pixels forming a second greater color resolution portion of the image to a second group having a second larger size.

14. The apparatus of claim 1, wherein the controller is configured to actuate the elements to operate in the static mode by default until receiving user input to actuate the elements to operate in the modulating mode.

15. The apparatus of claim 1, wherein the controller is configured to selectively actuate the elements to change between the states in the modulating mode at a first rate and a second greater rate.

16. The apparatus of claim 15, wherein the controller is configured to select the first rate and the second rate based at least upon a source of power for the apparatus.

17. The apparatus of claim 15, wherein the controller is configured to select the first rate and the second rate based at least upon a level of power in a power storage device.

18. The apparatus of claim 15, wherein the controller is configured to select the first rate and the second rate based at least upon content of an image to be displayed by the pixels.

19. The apparatus of claim 15, wherein the controller is configured to actuate elements of a first portion of the pixels at the first rate and elements of a second portion of the pixels at the second rate.

20. The apparatus of claim 1, where in the controller is configured to reformat image data into bit plain format when in the modulating mode.

21. A method comprising:

providing an array of pixels having pixel elements that are actuatable between discrete states; and

selectively actuating the pixel elements between the states in a modulating mode or a static mode.

22. The method of claim 21 further comprising selecting either the modulating mode or the static mode based at least upon a source of power for the apparatus.

23. The method of claim 21 further comprising selecting either the modulating mode or the static mode based at least upon a level of power in a power storage device.

24. The method of claim 21 further comprising selecting either the modulating mode or the static mode based at least upon content of an image to be formed by the pixels.

25. The method of claim 21 further comprising operating in a hybrid mode by actuating a first portion of the pixels using the static mode and a second portion of the pixels using the modulating mode.

26. A method comprising:

grouping pixels having interferometric elements actuatable between states into super-pixels based at least upon a content of an image to be formed by the pixels; and

statically retaining elements in one of the states to form the image.

27. The method of claim 26 further comprising:

grouping pixels forming an edge in the image into a first group having a first size and grouping pixels not forming the edge in the image into a second group having a second larger size.

28. The method of claim 26 further comprising:

grouping pixels forming a first color resolution portion of the image into a group having a first size and grouping pixels forming a second greater color resolution portion of the image into a second group having a second larger size.

29. An apparatus comprising:

pixels having interferometric elements actuatable between states; and

means for actuating the elements to change between a modulating mode and a static mode.

30. A computer readable medium comprising:

instructions to actuate interferometric pixel elements between discrete states using either a modulating or a static mode.