CONTROLLER AND DRIVER FEATURES FOR BI-STABLE DISPLAY

• US 20100134503A1
• Filed: 02/02/2010
• Published: 06/03/2010
• Est. Priority Date: 09/27/2004
• Status: Abandoned Application

• Current Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Original Assignee: Qualcomm MEMS Technologies Incorporated (Qualcomm, Inc.)
• Inventors: Sampsell, Jeffrey B., Tyger, Karen, Mathew, Mithran
• Application Number:
  US12/698,847
• Publication Number:
  US 20100134503A1
• Time in Patent Office: Days
• US Class Current: 345/522
• CPC Class Codes: G09G 2310/0224 Details of interlacing
• CPC Class Codes: G09G 2310/04 Partial updating of the display screen
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2340/0435 Change or adaptation of the frame rate of the video stream
• CPC Class Codes: G09G 3/3466 based on interferometric effect
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

The invention comprises systems and methods for controller and driver features for displays, and in particular, controller and driver features that relate to displays with bi-stable display elements. In one embodiment, such a display includes at least one driving circuit and an array comprising a plurality of bi-stable display elements, where the array is configured to be driven by the driving circuit, and where the driving circuit is programmed to receive video data and provide a subset of the received video data to the array based on a frame skip count. In some embodiments, the frame skip count is programmable or dynamically determined. In another embodiment, a method of displaying data on an array having a plurality of bi-stable display elements comprises receiving video data comprising a plurality of frames, displaying selected frames based upon a frame skip count, measuring the change between each selected frame and a frame previous to the selected frame, and displaying non-selected frames if the measured change is greater than or equal to a threshold.

Claims

1. A system comprising:

a client comprising a bi-stable display, the client being configured to receive frame skip count information from a server, the frame skip count information being used by the client to determine a video refresh rate for the bi-stable display of the client.

2. The system of claim 1, wherein the client is configured to receive video data from the server based on the frame skip count information.

3. The system of claim 2, wherein the frame skip count information is based on a calculated histogram of the video data.

4. The system of claim 1, wherein the frame skip count information is used to implement a video refresh rate for a particular region of the bi-stable display.

5. The system of claim 4, wherein the location of the region is defined by the server.

6. The system of claim 4, wherein the size of the region is defined by the server.

7. A server configured to provide frame skip count information to a client, the frame skip count being used by the client to implement a video refresh rate for a bi-stable display of the client.

8. The server of claim 7 further configured to provide video data to the client based on the frame skip count information.

9. The server of claim 8 further configured to determine the frame skip count information based on a calculated histogram of the video data.

10. The server of claim 7, wherein the frame skip count is used to implement a video refresh rate for one or more regions of the bi-stable display.

11. The server of claim 10, wherein the location of the one or more regions are defined by the server.

12. The server of claim 10, wherein the size of the one or more regions are defined by the server.

13. A system comprising:

a client device having a bi-stable display, the client device configured to provide frame skip count information to a server configured to provide video data to the client based on the frame skip count information.

14. The system of claim 13, wherein the frame skip count information is used to implement a video refresh rate for one or more regions of the bi-stable display.

15. The system of claim 14, wherein the location of the one or more regions are defined by the server.

16. The system of claim 14, wherein the size of the one or more regions are defined by the server.

17. The system of claim 13, wherein the client device comprises an input device, and wherein the frame skip count information provided by the client device is based on a selection made using the input device.

18. The system of claim 13, wherein the client determines the frame skip count information based on a calculated histogram of the video data.

19. A system comprising:

a server configured to provide video data to a client device based on frame skip count information, wherein the client comprises a bi-stable display, and wherein the client device is configured to provide the frame skip count information to the server.

20. The system of claim 19, wherein the frame skip count information is used to implement a video refresh rate for one or more regions of the bi-stable display.

21. The system of claim 20, wherein the location of the one or more regions are defined by the server.

22. The system of claim 20, wherein the size of the one or more regions are defined by the server.

23. The system of claim 19, wherein the frame skip count information provided by the client device is based on a selection made using an input device.

24. The system of claim 19, wherein the frame skip count information is based on a calculated histogram of the video data.