Apparatus for automatically adjusting display parameters relying on visual performance and method for the same

• US 7,583,253 B2
• Filed: 04/06/2006
• Issued: 09/01/2009
• Est. Priority Date: 01/11/2006
• Status: Expired due to Fees

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Jeng, Shie-Chang, Lin, Yan-Rung, Liao, Chi-Chang
• Primary Examiner(s): Nguyen, Kevin M
• Application Number:
  US11/398,629
• Publication Number:
  US 20070159470A1
• Time in Patent Office: 1,244 Days
• Field of Search: 345/204, 345/690, 345/696, 345/156, 345127-131
• US Class Current: 345/156
• CPC Class Codes: G06F 1/3218 of display devices
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2320/0693 Calibration of display systems
• CPC Class Codes: G09G 2360/144 the light being ambient light

Abstract

The present invention provides an apparatus for automatically adjusting display parameters relying on visual performance and its method. The present apparatus includes a display, a detecting system and a control system. The detecting system is disposed in a predetermined position to detect visual performance of a user operating the display. The control system adjusts the display parameters according to the visual performance variation of the user. As such, the user can comfortably operate the display for long and the visual fatigue is reduced.

Claims

1. An apparatus for automatically adjusting display parameters relying on visual performance, comprising:

a display used for displaying information for a user to read;

a detecting system disposed in a predetermined position to detect visual performance of the user; and

a control system having a mapping table of visual performance variations vs. display parameters, said control system adjusting the display parameters in accordance with a variation of the visual performance and the mapping table, wherein the display parameters include brightness and contrast.

2. The apparatus as claimed in claim 1, wherein said detecting system is a viewing distance detecting system, a blinking rate detecting system, or an eye tracking system.

3. The apparatus as claimed in claim 2, wherein said viewing distance detecting system is a light transmitting/receiving detecting system, an image sensing system, or a sonic ranging system.

4. The apparatus as claimed in claim 2, wherein said blinking rate detecting system is an image sensing system.

5. The apparatus as claimed in claim 2, wherein said eye tracking system is an image sensing system.

6. The apparatus as claimed in claim 1, wherein said control system includes an analog-to-digital converter, a memory and a processor, said analog-to-digital converter converts a visual performance variation signal from said detecting system to a set of digital signals and transmits the set of digital signals to said processor, said memory stores a mapping table of visual performance variations vs. display parameters, and said processor adjusts the display parameters relying on the visual performance variation signal and the mapping table.

7. The apparatus as claimed in claim 6, wherein said detecting system is a viewing distance detecting system, a blinking rate detecting system, or an eye tracking system.

8. The apparatus as claimed in claim 7, wherein said viewing distance detecting system is a light transmitting/receiving detecting system, an image sensing system, or a sonic ranging system.

9. The apparatus as claimed in claim 7, wherein said blinking rate detecting system is an image sensing system.

10. The apparatus as claimed in claim 7, wherein said eye tracking system is an image sensing system.

11. The apparatus as claimed in claim 6, wherein said detecting system is positioned in a non-display area of said display.

12. The apparatus as claimed in claim 1, wherein said detecting system is positioned in a non-display area of said display.

13. A method for automatically adjusting display parameters relying on visual performance, comprising:

detecting an initial visual performance of a display user;

continuously detecting visual performance of the user;

judging whether the visual performance of the user is changed, if the visual performance is not changed, repeating the previous steps, and if the visual performance is changed, determining a variation of the visual performance; and

adjusting the display parameters relying on a mapping table of visual performance variations vs. display parameters, wherein the display parameters include brightness and contrast.

14. The method as claimed in claim 13, wherein comprising a step for pre-setting the display parameters prior to detecting the initial visual performance of the user.

15. The method as claimed in claim 13, wherein comprising a step for re-detecting the visual performance of the user after adjusting the display parameters.

16. The method as claimed in claim 13, wherein when determining the variation of the visual performance, simultaneously judging whether the visual performance variation exceeds a threshold value, in case that the visual performance variation exceeds the threshold value, sending a warning signal.

17. An apparatus for automatically adjusting display parameters relying on visual performance, comprising:

a display used for displaying information for a user to read;

a detecting system disposed in a predetermined position to detect visual performance of the user, wherein said detecting system is a blinking rate detecting system or an eye tracking system; and

a control system having a mapping table of visual performance variations vs. display parameters, said control system adjusting the display parameters in accordance with a variation of the visual performance and the mapping table.

18. The apparatus as claimed in claim 17, wherein said display parameters include brightness, contrast and font size.

19. The apparatus as claimed in claim 17, wherein said control system includes an analog-to-digital converter, a memory and a processor, said analog-to-digital converter converts a visual performance variation signal from said detecting system to a set of digital signals and transmits the set of digital signals to said processor, said memory stores a mapping table of visual performance variations vs. display parameters, and said processor adjusts the display parameters relying on the visual performance variation signal and the mapping table.

20. The apparatus as claimed in claim 19, wherein said display parameters include brightness, contrast and font size.