Methods and Systems for Surround-Specific Display Modeling

• US 20080208551A1
• Filed: 02/28/2007
• Published: 08/28/2008
• Est. Priority Date: 02/28/2007
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Kerofsky, Louis Joseph, Daly, Scott J.
• Granted Patent: US 7,826,681 B2
• Time in Patent Office: Days
• US Class Current: 703/13
• CPC Class Codes: G09G 2320/0238 Improving the black level
• CPC Class Codes: G09G 2320/0276 for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/0646 Modulation of illumination source brightness and image signal correlated to each other
• CPC Class Codes: G09G 2320/066 for control of contrast
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/2007 Display of intermediate tones
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336

Abstract

Embodiments of the present invention comprise systems and methods for surround-specific display modeling.

Claims

1. A method for generating a surround-characteristic-specific display model, said method comprising:

a) receiving a surround light characteristic;

b) receiving perceptual reference data;

c) receiving model property data;

d) generating a perceptual brightness model based on said perceptual reference data and said model property data; and

e) generating a display model based on said perceptual brightness model and said surround light characteristic.

2. A method as described in claim 1 wherein said surround light characteristic comprises a light intensity incident on a display.

3. A method as described in claim 1 wherein said surround light characteristic is calculated from a light intensity measurement.

4. A method as described in claim 1 wherein said perceptual reference data comprises display model data for a specific reference surround luminance value.

5. A method as described in claim 1 wherein said perceptual reference data comprises at least one of a black level, a white point and a tonescale process for a specific reference surround luminance value.

6. A method as described in claim 1 wherein said model property data indicates at least one property of a perceptual brightness model.

7. A method as described in claim 1 wherein said model property data indicates whether said perceptual brightness model comprises elements related to a black level, a white point and a tonescale process.

8. A method as described in claim 1 wherein said display model comprises elements related to at least one of a black level, a white point and a tonescale process.

9. A method as described in claim 1 wherein said display model comprises data for configuring a display backlight illumination level.

10. A method as described in claim 1 wherein said display model comprises data for adjusting an image value to a white point.

11. A method as described in claim 1 wherein said display model comprises a tonescale operation for adjusting a plurality of image values.

12. A system for generating a surround-characteristic-specific display model, said system comprising:

a) a surround receiver for receiving a surround light characteristic related to a display;

b) a reference receiver for receiving perceptual reference data;

c) a model receiver for receiving model property data;

d) a perceptual model generator for generating a perceptual brightness model based on said perceptual reference data and said model property data; and

e) a display model generator for generating a display model based on said perceptual brightness model and said surround light characteristic.

13. A method as described in claim 12 wherein said surround receiver is a light sensor capable of measuring a light intensity incident on said display.

14. A method as described in claim 12 wherein said surround receiver receives a surround light characteristic calculated from a light intensity measurement.

15. A method as described in claim 12 wherein said perceptual reference data comprises display model data for a specific reference surround luminance value.

16. A method as described in claim 12 wherein said perceptual reference data comprises at least one of a black level, a white point and a tonescale process for a specific reference surround luminance value.

17. A method as described in claim 12 wherein said model property data indicates at least one property of a perceptual brightness model.

18. A method as described in claim 12 wherein said model property data indicates whether said perceptual brightness model comprises elements related to a black level, a white point and a tonescale process.

19. A method as described in claim 12 wherein said display model comprises elements related to at least one of a black level, a white point and a tonescale process.

20. A method as described in claim 12 wherein said display model comprises data for configuring a display backlight illumination level.