Compensated method of displaying based on a visual adjustment factor

• US 9,159,299 B2
• Filed: 10/13/2011
• Issued: 10/13/2015
• Est. Priority Date: 10/13/2011
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Lee, John Jong-Suk
• Primary Examiner(s): Chang, Kent
• Assistant Examiner(s): Hagemeier, Herbert L
• Application Number:
  US13/272,596
• Publication Number:
  US 20130093796A1
• Time in Patent Office: 1,461 Days
• Field of Search: 345 4- 6, 345 7- 9, 345/32, 345/619, 345/690
• US Class Current: 1/1
• CPC Class Codes: A61B 3/0041 characterised by display arrangements
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/0693 Calibration of display systems
• CPC Class Codes: G09G 2380/08 Biomedical applications
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 5/14 Display of multiple viewports

Abstract

A method and a device for displaying images on a display based on a visual adjustment factor related to a user'"'"'s prescription eyewear are provided. The display includes a front display plane and a back display plane and for each of a plurality of image elements of an image, a respective version of the image element is displayed on each of the front display plane and the back display plane based on the visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency.

Claims

1. A method for displaying information using a display to at least partially compensate for vision impairment of a user, the display having a front display plane and a back display plane, the method comprising:

receiving eye correction prescription information including spherical correction information;

determining a focal length correction based on the spherical correction information; and

for each of a plurality of image elements of an image, displaying a respective version of the image element on each of the front display plane and the back display plane based on a visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency and have relative scaling with respect to one another so that;

the respective versions of the image element appear of same size but offset by a distance equal to the focal length correction when viewed from a viewing distance; and

one of the respective versions of the image element causes the user'"'"'s eyes to focus so that the other respective version of the image element is perceived by the user'"'"'s eyes as being focused in a manner mimicking the refractive power of a corrective lens based on the spherical correction information.

2. The method of claim 1, wherein the difference in at least one of line weight and transparency between the respective versions of the image element displayed on the front display plane and the back display plane based on the visual adjustment factor sets the visual focal length to the display to one of the front display plane and the back display plane while the respective version of the image element displayed on the other one of the front display plane and the back display plane is perceptible.

3. The method of claim 2, further comprising adjusting light intensity of at least one of the front display plane and the back display plane based on the visual adjustment factor.

4. The method of claim 2, wherein displaying a respective version of the image element on each of the front display plane and the back display plane based on a visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency comprises:

displaying a respective version of the image element on each of the front display plane and the back display plane, such that the visual focal length to the display is set to the front display plane of the display for eye correction prescription information indicative of hyperopia; and

displaying a respective version of the image element on each of the front display plane and the back display plane such that the visual focal length to the display is set to the rear display plane of the display for eye correction prescription information indicative of myopia.

5. The method of claim 2, wherein the viewing distance comprises a distance between the display and the user'"'"'s eyes.

6. The method of claim 5, further comprising determining the distance between the display and the user'"'"'s eyes by measuring the distance with a measuring device.

7. The method of claim 1, further comprising prompting for entry of the eye correction prescription information.

8. The method of claim 1, wherein displaying a respective version of the image element on each of the front display plane and the back display plane based on a visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency corresponds to operating in a compensated display mode, the method further comprising automatically operating in the compensated display mode responsive to at least one of:

a time of day; and

an elapsed period of inactivity of the display.

9. The method of claim 1, wherein displaying a respective version of the image element on each of the front display plane and the back display plane based on a visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency corresponds to operating in a compensated display mode, the method further comprising switching between the compensated display mode and at least one other display mode responsive to user input.

10. A device for displaying information to at least partially compensate for vision impairment of a user, the device comprising:

a display having a front display plane and a back display plane; and

a display controller that is configured to;

receiving eye correction prescription information including spherical correction information,

determine a focal length correction based on the spherical correction information, and

in a compensated display mode, control the display to display, for each of a plurality of image elements of an image, a respective version of the image element on each of the front display plane and the back display plane of the display based on a visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency and have relative scaling with respect to one another so that;

the respective versions of the image element appear of same size but offset by a distance equal to the focal length correction when viewed from a viewing distance; and

one of the respective versions of the image element causes the user'"'"'s eyes to focus so that the other respective version of the image element is perceived by the user'"'"'s eyes as being focused in a manner mimicking the refractive power of a corrective lens based on the spherical correction information.

11. The device of claim 10, wherein the display controller is configured to control the display to display the respective versions of the image elements such that the difference in at least one of line weight and transparency between the respective versions of the image element displayed on the front display plane and the back display plane based on the visual adjustment factor sets the visual focal length to the display to one of the front display plane and the back display plane while the respective version of the image element displayed on the other one of the front display plane and the back display plane is perceptible.

12. The device of claim 11, wherein the display controller is further configured to adjust light intensity of at least one of the front display plane and the back display plane based on the visual adjustment factor.

13. The device of claim 11, wherein the display controller is configured to:

control the display to adjust at least one of the line weight and transparency of the respective versions of the image elements of the front display plane and the back display plane such that the visual focal length to the display is set to the front display plane for eye correction prescription information indicative of hyperopia; and

control the display to adjust at least one of the line weight and transparency of the respective versions of the image elements of the front display plane and the back display plane such that the visual focal length to the display is set to the rear display plane for eye correction prescription information indicative of myopia.

14. The device of claim 11, wherein the viewing distance comprises a distance between the display and the user'"'"'s eyes.

15. The device of claim 14, further comprising a distance measuring sensor configured to measure the distance between the display and the user'"'"'s eyes.

16. The device of claim 10, wherein the display controller is further configured to prompt for entry of the eye correction prescription information.

17. The device of claim 10, wherein the display controller is further configured to automatically operate in the compensated display mode responsive to at least one of:

a time of day; and

an elapsed period of inactivity of the device.

18. The device of claim 10, wherein the display controller is further configured to switch between the compensated display mode and at least one other display mode responsive to user input.

19. The device of claim 10, wherein the device is a mobile device.