VISION CORRECTIVE DISPLAY

• US 20140267284A1
• Filed: 06/29/2013
• Published: 09/18/2014
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Blanche, Bradley, Szeto, Raymond
• Granted Patent: US 9,406,253 B2
• Time in Patent Office: Days
• US Class Current: 345/428
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H04N 13/302 for viewing without the aid of special glasses, i.e. using autostereoscopic displays

Abstract

Disclosed are various embodiments that relate to a display that renders corrected images to viewers so that users do not need to wear corrective lenses. The system obtains a vision parameter associated with a viewer and/or content to be displayed. The system receives an image for display to the viewer and modifies the image according to the vision parameter to generate a modified vision corrected image. The system renders the modified region on a rear display while rendering a selective barrier on a front barrier display to direct a vision corrected image to a viewer according to the vision parameter.

Claims

1. A method comprising:

obtaining a visual parameter associated with at least one of a viewer and or content to be displayed;

receiving content for display;

modifying display characteristics of the received content according to the visual parameter to generate modified content;

rendering the modified content to a rear display; and

selectively activating a front barrier display to control visibility of the modified content according at least in part to the visual parameter.

2. The method of claim 1, wherein obtaining the visual parameter comprises obtaining at least one of a parameter associated with the viewer'"'"'s eyesight, a focal length value of an eye of the viewer, or a corrective lens prescription of the viewer.

3. The method of claim 1, wherein the front barrier display is detachable with respect to the rear display.

4. The method of claim 1, further comprising selectively activating the front barrier display to create a parallax barrier.

5. The method of claim 1, further comprising selectively activating the front barrier display to control which portions of the modified content rendered to the rear display are visible to the viewer.

6. The method of claim 1, further comprising obtaining the visual parameter by obtaining a measure of distance between the viewer and the rear display.

7. The method of claim 1, further comprising selectively activating the front barrier display to block certain portions of the modified content rendered to the rear display from being seen by the viewer while allowing other portions of the modified content rendered to the rear display to be seen by the viewer.

8. The method of claim 1, further comprising selectively activating the front barrier display to prevent the passage of light emitted from the rear display in the direction of the viewer associated with certain portions of the modified content rendered to the rear display while allowing the passage of light emitted from the rear display in the direction of the viewer associated with other portions of the modified content rendered to the rear display.

9. The method of claim 1, further comprising generating the modified content and selectively activating the front barrier display to control visibility of the modified content to account for visual impairment of the viewer.

10. The method of claim 8, further comprising generating the modified content and selectively activating the front barrier display to control visibility of the modified content so that the modified content appears in focus to the viewer.

11. A system comprising:

processing circuitry configured to;

obtain a visual parameter associated with at least one of a viewer or content to be displayed;

receive content for display to the viewer;

modify display characteristics of at least a portion of the image according to the visual parameter to generate a modified content;

render the modified image on a rear display; and

selectively direct light emitted from the rear display to control visibility of the modified content according to at least the visual parameter.

12. The system of claim 11, wherein the processing circuitry is configured to obtain the visual parameter by obtaining at least one of a parameter associated with the viewer'"'"'s eyesight, a focal length of an eye of the viewer, or a corrective lens prescription of the viewer.

13. The system of claim 11, wherein the visual parameter is based at least in part on a measure of distance between the viewer and the rear display.

14. The system of claim 11, further comprising:

a rear display; and

a front barrier display;

wherein the processing circuitry is further configured to selectively activate the front barrier display to selectively direct light emitted from the rear display to control visibility of the modified content according at least in part to the visual parameter.

15. The system of claim 14, wherein, the processing circuitry is further configured to selectively activate the front barrier display to prevent the passage of light emitted from the rear display in the direction of the viewer associated with certain portions of the modified content rendered to the rear display while allowing the passage of light emitted from the rear display in the direction of the viewer associated with other portions of the modified content rendered to the rear display.

16. The system of claim 14, wherein the processing circuitry is further configured to generate the modified content and selectively activate the front barrier display to control visibility of the modified content to account for visual impairment of the viewer.

17. The system of claim 14, wherein the processing circuitry is further configured to generate the modified content and selectively activate the front barrier display to control visibility of the modified content so that the modified content appears in focus to the viewer.

18. The system of claim 15, wherein the processing circuitry is configured to selectively activate the front barrier display to render a dynamic pattern to mask at least a portion of the light emitted from the rear display.

19. The system of claim 14, wherein the front barrier display is detachable with respect to the rear display.

20. A method comprising:

obtaining a visual parameter associated with a viewer

modifying display characteristics of a region of an image according to the visual parameter to generate a modified image;

rendering the modified image on a rear display; and

controlling visibility of the modified image according at least in part to the visual parameter.

21. The method of claim 20, wherein the visual parameter is based at least in part on at least one of a parameter associated with the viewer'"'"'s eyesight, a focal length value of an eye of the viewer, or a corrective lens prescription of the viewer

22. The method of claim 20, further comprising receiving information selecting the region of the image to be modified.

23. The method of claim 20, wherein the image is at least a portion of video content.

24. The method of claim 20, wherein the visibility is controlled by selectively activating a barrier display that masks certain portions of light emitted from the rear display.

25. The method of claim 24, further comprising generating the modified image and selectively activating the barrier display to control visibility of the modified image so that the modified content appears in focus to the viewer.

26. The method of claim 24, further comprising operating the barrier display to mask the light emitted from the rear display by rendering a dynamic pattern.

27. The method of claim 26, further comprising operating the barrier display to render a dynamic pattern that oscillates between a first pattern and a second pattern.