Device-specific color intensity settings and sub-pixel geometry

• US 7,518,623 B2
• Filed: 07/29/2005
• Issued: 04/14/2009
• Est. Priority Date: 08/19/1999
• Status: Expired due to Fees

• Current Assignee: Adobe Inc.
• Original Assignee: Adobe Systems Incorporated (Adobe Inc.)
• Inventors: Dowling, Terence S., Hall, Jeremy A.
• Primary Examiner(s): Lefkowitz; Sumati
• Assistant Examiner(s): Beck; Alexander S.
• Application Number:
  US11/192,521
• Publication Number:
  US 20050259111A1
• Time in Patent Office: 1,355 Days
• Field of Search: 345694-696
• US Class Current: 345/696
• 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 2320/0242 Compensation of deficiencies in the appearance of colours
• CPC Class Codes: G09G 2340/0457 Improvement of perceived resolution by subpixel rendering
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607

Abstract

A method for determining device-specific information for pixels to obtain an optimal display of fine structure monochrome images on an output display device, the method comprising determining a set of device-specific pixel input values that will cause the display system to display a corresponding set of target visual output intensities relative to the output display device, and determining a device-specific sub-pixel geometry for all the pixels of the output display device. Displaying for each of the pixels a selected visual output intensity relative to the output display device at a sub-pixel position according to a corresponding pixel input value will cause an optimal display of fine structure monochrome images to be displayed on the output display device.

Claims

1. In a display system operable to display a plurality of pixels, a method for determining device-specific information about pixels of an output display device, where each pixel includes a plurality of sub-pixels each defining a color component and having a position, the positions of the sub-pixels forming a sub-pixel geometry of the output display device, the method comprising:

displaying a plurality of regions on the output display device, including selecting a pattern for each region of the plurality of regions, where each pattern is associated with a particular possible sub-pixel geometry of a plurality of possible sub-pixel geometries;

receiving a user input selecting a region of the plurality of regions; and

using the received user input to determine that a first sub-pixel geometry from among the plurality of possible sub-pixel geometries best corresponds to the actual sub-pixel geometry of the pixels of the output display device.

2. The method of claim 1, where selecting the pattern for each region of the plurality of regions includes selecting one or more patterns associated with distinct sub-pixel geometries of the plurality of possible sub-pixel geometries.

3. The method of claim 2, where the one or more patterns associated with distinct sub-pixel geometries are each susceptible to color fringing when the sub-pixel geometry of the output display device is different from the sub-pixel geometry associated with the respective pattern.

4. The method of claim 1, further comprising:

determining a number of sub-pixel geometries possible for the output display device using a number of sub-pixels per pixel in the output display device.

5. The method of claim 1, where a particular selected pattern includes a series of single pixel-wide vertical lines separated from a next vertical line by a specified number of pixels.

6. The method of claim 1, further comprising:

setting sub-pixel input values to display a visual output according to the identified sub-pixel geometry.

7. A system, comprising:

an output display device having illuminable pixels, where each pixel includes a plurality of sub-pixels each defining a color component and having a position, the positions of the sub-pixels forming a sub-pixel geometry of the output display device;

means for selecting a respective pattern for each region of a plurality of regions on the output display device and displaying the respective pattern in each of the plurality of regions, where each pattern is associated with a particular possible sub-pixel geometry of a plurality of possible sub-pixel geometries;

means for receiving a user input selecting one region of the plurality of regions; and

means for using the received user input to determine that a first sub-pixel geometry from among the plurality of possible sub-pixel geometries best corresponds to the actual sub-pixel geometry of the pixels of the output display device.

8. The system of claim 7, where selecting the pattern for each region of the plurality of regions includes selecting one or more patterns associated with distinct sub-pixel geometries of the plurality of possible sub-pixel geometries.

9. The system of claim 8, where the one or more patterns associated with distinct sub-pixel geometries are each susceptible to color fringing when the sub-pixel geometry of the output display device is different from the sub-pixel geometry associated with the respective pattern.

10. The system of claim 7, further comprising:

means for determining a number of sub-pixel geometries possible for the output display device using a number of sub-pixels per pixel in the output display device.

11. The system of claim 7, where each respective pattern includes a series of single pixel-wide vertical lines separated from a next vertical line by a specified number of pixels.

12. The system of claim 7, further comprising:

means for setting sub-pixel input values to display a visual output according to the identified sub-pixel geometry.

13. A computer program product tangibly embodied in a machine-readable storage device for execution by a programmable processor in a system having a display device operable to display a plurality of pixels, where each pixel includes a plurality of sub-pixels each defining a color component and having a position, the positions of the sub-pixels forming a sub-pixel geometry of the output display device, the product comprising instructions operable to cause the system to perform the actions of:

displaying a plurality of regions on the output display device, including selecting a pattern for each region of the plurality of regions, where each pattern is associated with a particular possible sub-pixel geometry of a plurality of possible sub-pixel geometries; and

receiving a user input selecting a region of the plurality of regions; and

using the received user input to determine that a first sub-pixel geometry from among the plurality of possible sub-pixel geometries best corresponds to the actual sub-pixel geometry of the pixels of the output display device.

14. The computer program product of claim 13, where the instructions operable to cause the system to perform the actions of selecting the pattern for each region of the plurality of regions includes instructions operable to cause the system to perform the actions of selecting one or more patterns associated with distinct sub-pixel geometries of the plurality of possible sub-pixel geometries.

15. The computer program product of claim 14, where the one or more patterns associated with distinct sub-pixel geometries are each susceptible to color fringing when the sub-pixel geometry of the output display device is different from the sub-pixel geometry associated with the respective pattern.

16. The computer program product of claim 13, further comprising instructions operable to cause the system to perform the actions of:

determining a number of sub-pixel geometries possible for the output display device using a number of sub-pixels per pixel in the output display device.

17. The computer program product of claim 13, where a particular selected pattern includes a series of single pixel-wide vertical lines separated from a next vertical line by a specified number of pixels.

18. The computer program product of claim 13, further comprising instructions operable to cause the system to perform the actions of:

setting sub-pixel input values to display a visual output according to the identified sub-pixel geometry.