SYSTEMS, DEVICES, AND METHODS FOR IMPROVING IMAGE QUALITY OF A DISPLAY

• US 20140078185A1
• Filed: 09/14/2012
• Published: 03/20/2014
• Est. Priority Date: 09/14/2012
• Status: Abandoned Application

• Current Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Original Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Inventors: Pu, Chuan, Tao, Yi, Tadepalli, Nageswara Rao
• Application Number:
  US13/616,700
• Publication Number:
  US 20140078185A1
• Time in Patent Office: Days
• US Class Current: 345/690
• CPC Class Codes: G09G 3/3466 based on interferometric effect

Abstract

This disclosure provides systems, methods and apparatus for writing data to a display. In one aspect, the display includes an array of display elements arranged at the intersection of a plurality of common lines and segment lines. The display also includes a common driver and a segment driver coupled to the common lines and segment lines. According to one aspect, the display includes a greater number of segment lines than columns of display elements in the array. According to another aspect, the display may also include a first number of display element segment electrodes that are coupled to each other along a first common line, and a second number of display element segment electrodes coupled to each other along a second common line, where the first number is different than the second number.

Claims

1. A display apparatus comprising:

a plurality of common lines;

a plurality of segment lines, wherein each segment line includes a first data line and a second data line configured to apply different data signals; and

a plurality of display elements, wherein each display element is in electrical communication with one of the plurality of common lines and one of the plurality of segment lines;

wherein the connection between the first data line of a first segment line and a first set of display elements along the first segment line is structurally different from the connection between the second data line of the first segment line and a second set of display elements along the first segment line; and

wherein at least some of the structural differences are positioned such that they do not cause substantial differences in visual appearance between display elements of the same color, or at least some of the structural differences alternate at a rate such that any differences in visual appearance are not visually resolvable by a viewer.

2. The display apparatus of claim 1, wherein the structural differences alternate between adjacent segment lines and between adjacent common lines.

3. The display apparatus of claim 1, wherein the first data line is formed from a first layer and is in electrical communication with an electrode layer through a first via, and wherein the second data line is formed from a second layer and is in electrical communication with a different electrode layer through a second via, wherein the first layer is disposed between the second layer and the electrode layers.

4. The display apparatus of claim 3, further comprising:

a first arm formed in the first layer and having a first length, wherein the first via is coupled to a distal end portion of the first arm and electrically couples the first layer to the electrode layer; and

a second arm formed in the first layer and having a second length shorter than the first length, wherein the second via is formed beyond a distal end of the second arm and electrically couples the second layer to the electrode layer.

5. The display apparatus of claim 4, the display apparatus, further comprising:

a third arm formed in the first layer adjacent to the first arm and having a third length that is substantially the same as the second length; and

a fourth arm formed in the first layer adjacent to the second arm and having a fourth length that is substantially the same as the first length.

6. The display apparatus of claim 5, wherein a via is not formed beyond a distal end of the third arm, and wherein a via is not formed in a distal end portion of the fourth arm.

7. The display apparatus of claim 5, wherein a third electrically conductive via is formed beyond a distal end of the third arm and is electrically isolated from the second data line, and wherein a fourth electrically conductive via is coupled to a distal end portion of the fourth arm and is electrically isolated from the first data line.

8. The display apparatus of claim 1, further comprising:

a first common line in electrical communication with a display element from the first set of display elements;

a second common line in electrical communication with a display element from the second set of display elements; and

driver circuitry configured to;

apply a first data signal to the first data line;

apply a second data signal to the second data line; and

simultaneously apply a write waveform to the first and second common lines.

9. The display apparatus of claim 8, wherein the first common line and the second common line are non-adjacent.

10. The display apparatus of claim 1, wherein the plurality of display elements includes one or more interferometric modulators.

11. The display apparatus of claim 1, further comprising:

a processor that is configured to communicate with the display, the processor being configured to process image data; and

a memory device that is configured to communicate with the processor.

12. The display apparatus of claim 11, further comprising a driver circuit configured to send at least one signal to the display.

13. The display apparatus of claim 12, further comprising a controller configured to send at least a portion of the image data to the driver circuit.

14. The display apparatus of claim 11, further comprising an image source module configured to send the image data to the processor.

15. The display apparatus of claim 14, wherein the image source module includes at least one of a receiver, transceiver, and transmitter.

16. The display apparatus of claim 11, the display apparatus further comprising an input device configured to receive input data and to communicate the input data to the processor.

17. A method of manufacturing a display, the method comprising:

forming a plurality of segment lines, each segment line having a first data line and a second data line configured to apply different data signals;

forming a first connection between the first data line of a first segment line and a first set of display elements along the first segment line; and

forming a second connection between the second data line of the first segment line and a second set of display elements along the first segment line, the second connection structurally different from the first connection,

wherein at least some of the structural differences are positioned such that they do not cause substantial differences in visual appearance between display elements of the same color, or at least some of the structural differences alternate at a rate such that any differences in visual appearance are not visually resolvable by a viewer.

18. The method of claim 17, the display comprising a plurality of common lines, wherein the structural differences alternate between adjacent segment lines and between adjacent common lines.

19. The method of claim 17, further comprising:

depositing a first layer to form the first data line of the first segment line;

depositing a second layer to form the second data line of the first segment line;

forming a first via and electrically coupling the first via to the first data line and an electrode layer; and

forming a second via and electrically coupling the second via to the second data line and a different electrode layer,

wherein the first layer is disposed between the second layer and the electrode layers.

20. The method of claim 19, further comprising:

forming a first arm in the first layer having a first length;

coupling the first via to a distal end portion of the first arm;

forming a second arm in the first layer having a second length shorter than the first length; and

forming the second via beyond a distal end of the second arm.

21. The method of claim 20, further comprising:

forming a third arm in the first layer adjacent to the first arm and having a third length that is substantially the same as the second length; and

forming a fourth arm in the first layer adjacent to the second arm and having a fourth length that is substantially the same as the first length.

22. A display apparatus comprising:

a plurality of common lines;

a plurality of segment lines, wherein each segment line includes a first data line and a second data line configured to apply different data signals; and

a plurality of display elements, wherein each display element is in electrical communication with one of the plurality of common lines and one of the plurality of segment lines;

first connection means for electrically connecting the first data line of a first segment line and a first set of display elements along the first segment line; and

second connection means for electrically connecting the second data line of the first segment line and a second set of display elements along the first segment line,

wherein the first connection means is structurally different from the second connection means, and

wherein at least some of the structural differences are positioned such that they do not cause substantial differences in visual appearance between display elements of the same color, or at least some of the structural differences alternate at a rate such that any differences in visual appearance are not visually resolvable by a viewer.

23. The display apparatus of claim 22, wherein the structural differences alternate between adjacent segment lines and common lines.

24. The display apparatus of claim 22, wherein the first data line is formed from a first layer and is in electrical communication with an electrode layer through the first connection means, and wherein the second data line is formed from a second layer and is in electrical communication with a different electrode layer through the second connection means, wherein the first layer is disposed between the second layer and the electrode layers.

25. The display apparatus of claim 24, wherein:

the first connection means includes;

a first arm formed in the first layer and having a first length; and

a first electrically conductive via coupled to a distal end portion of the first arm and electrically coupling the first layer with the electrode layer; and

the second connection means includes;

a second arm formed in the first layer and having a second length shorter than the first length; and

a second electrically conductive via formed beyond a distal end of the second arm and electrically coupling the second layer with the electrode layer.

26. The display apparatus of claim 25, the display apparatus further comprising:

a third connection means adjacent the first connection means, wherein the third connection means includes a third arm formed in the first layer and having a third length that is substantially the same as the second length; and

a fourth connection means adjacent the second connection means, wherein the fourth connection means includes a fourth arm formed in the first layer and having a fourth length that is substantially the same as the first length.

27. The display apparatus of claim 26, wherein an electrically conductive via is not formed beyond a distal end of the third arm, and wherein an electrically conductive via is not formed in a distal end of the fourth arm.

28. The display apparatus of claim 22, wherein the plurality of display elements includes one or more interferometric modulators.