Plenoptic cellular vision correction

• US 10,690,910 B2
• Filed: 11/13/2018
• Issued: 06/23/2020
• Est. Priority Date: 02/07/2018
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Lamkin, Mark A., Ringgenberg, Kyle Martin, Lamkin, Jordan David
• Primary Examiner(s): Vieaux, Gary C
• Application Number:
  US16/188,361
• Publication Number:
  US 20190243130A1
• Time in Patent Office: 588 Days
• CPC Class Codes: G02B 2027/011 comprising device for correcting geometrical aberrations, distortion
• CPC Class Codes: G02B 2027/0127 comprising devices increasing the depth of field
• CPC Class Codes: G02B 2027/0181 Adaptation to the pilot/driver
• CPC Class Codes: G02B 27/0075 with means for altering, e.g. increasing, the depth of field or depth of focus
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02C 2202/18 Cellular lens surfaces
• CPC Class Codes: G02C 7/083 Electrooptic lenses
• CPC Class Codes: G06F 3/1446 display composed of modules, e.g. video walls
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G06T 19/006 Mixed reality object pose determination, tracking or camera calibration for mixed reality G06T7/00
• CPC Class Codes: G06T 3/20 Linear translation of whole images or parts thereof, e.g. panning
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0804 Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2356/00 Detection of the display position w.r.t. other display screens
• CPC Class Codes: G09G 2370/14 Use of low voltage differential signaling [LVDS] for display data communication
• CPC Class Codes: G09G 3/003 to produce spatial visual effects

Abstract

In one embodiment, an electronic display assembly includes a circuit board, a microlens layer, a pixel array layer, and a logic unit layer. The microlens layer includes cells that are arranged in a grid pattern that includes a center cell and a plurality of surrounding cells around the center cell. The pixel array layer includes a plurality of display pixels. The logic unit layer includes logic configured to display, using some of the plurality of display pixels, a sub-image in each particular cell of the first plurality of cells and to access vision correction parameters of a user. The logic is further configured to perform linear transformations on a plurality of the sub-images of the surrounding cells according to the vision correction parameters of the user and to shift the plurality of sub-images of the surrounding cells according to the linear transformations, thereby providing digital vision correction for the user.

Claims

1. An electronic display assembly comprising:

a first microlens layer on a first side of a circuit board and comprising a first plurality of cells, the first plurality of cells being arranged in a grid pattern comprising a center cell and a plurality of surrounding cells that surround the center cell;

a pixel array layer adjacent to the first microlens layer, the pixel array layer comprising a plurality of display pixels;

a second microlens layer on an opposite side of the circuit board from the first microlens layer, the second microlens layer comprising a second plurality of cells;

an image sensor layer adjacent to the second microlens layer, the image sensor layer comprising a plurality of sensor pixels configured to detect incoming light through the second plurality of cells; and

a logic unit layer coupled to the circuit board, the logic unit layer comprising logic configured to;

display, using some of the plurality of display pixels, a sub-image in each particular cell of the first plurality of cells;

access vision correction parameters of a user;

perform linear transformations on a plurality of the sub-images of the surrounding cells according to the vision correction parameters of the user; and

shift the plurality of sub-images of the surrounding cells according to the linear transformations, thereby providing digital vision correction for the user;

wherein each cell of the first and second plurality of cells comprises;

a transparent lenslet; and

a plurality of opaque walls configured to prevent light from bleeding into adjacent cells.

2. The electronic display assembly of claim 1, wherein the vision correction parameters comprise an ophthalmological prescription of the user.

3. The electronic display assembly of claim 2, wherein

the ophthalmological prescription comprises:

a spherical diopter value;

a cylindrical diopter value; and

an angle value.

4. The electronic display assembly of claim 1, wherein the linear transformations comprise:

matrix operations;

scale operations;

shear operations;

or

rotation operations.

5. The electronic display assembly of claim 1, wherein each cell of the plurality of cells comprises one or both of:

a plurality of opaque walls configured to prevent light from bleeding into adjacent cells; and

a filter layer on one end of each cell of the plurality of cells, the filter layer configured to limit light passing through the filter layer to a specific incident angle.

6. The electronic display assembly of claim 1, further comprising a filter layer on at least one end of each cell of the first and second plurality of cells, the filter layer operable to limit light passing through the filter layer to a specific incident angle, the filter layer comprising a coating or a film.

7. The electronic display assembly of claim 1, wherein the transparent lenslet of each cell of the first and second plurality of cells comprises a three-dimensional shape with a collimating lens on one end of the three-dimensional shape, the three-dimensional shape comprising:

a triangular polyhedron;

a rectangular cuboid;

a pentagonal polyhedron;

a hexagonal polyhedron;

a heptagonal polyhedron;

or

an octagonal polyhedron.

8. An electronic display assembly comprising:

a circuit board;

a first microlens layer on a first side of the circuit board and comprising a first plurality of cells, each cell of the first plurality of cells comprising a transparent lenslet, the first plurality of cells being arranged in a grid pattern comprising a center cell and a plurality of surrounding cells that surround the center cell;

a pixel array layer adjacent to the first microlens layer, the pixel array layer comprising a plurality of display pixels;

a logic unit layer coupled to the circuit board, the logic unit layer comprising logic configured to;

display, using some of the plurality of display pixels, a sub-image in each particular cell of the first plurality of cells;

access vision correction parameters of a user;

perform linear transformations on a plurality of the sub-images of the surrounding cells according to the vision correction parameters of the user; and

shift the plurality of sub-images of the surrounding cells according to the linear transformations, thereby providing digital vision correction for the user.

9. The electronic display assembly of claim 8, wherein the vision correction parameters comprise an ophthalmological prescription of the user.

10. The electronic display assembly of claim 9, wherein the ophthalmological prescription comprises:

a spherical diopter value;

a cylindrical diopter value; and

an angle value.

11. The electronic display assembly of claim 8, wherein the linear transformations comprise:

matrix operations;

scale operations;

shear operations;

or

rotation operations.

12. The electronic display assembly of claim 8, wherein each cell of the plurality of cells comprises one or both of:

a plurality of opaque walls configured to prevent light from bleeding into adjacent cells; and

a filter layer on one end of each cell of the plurality of cells, the filter layer configured to limit light passing through the filter layer to a specific incident angle.

13. The electronic display assembly of claim 8, further comprising:

a second microlens layer on an opposite side of the circuit board from the first microlens layer, the second microlens layer comprising a second plurality of cells; and

an image sensor layer adjacent to the second microlens layer, the image sensor layer comprising a plurality of sensor pixels configured to detect incoming light through the second plurality of cells.

14. The electronic display assembly of claim 13, wherein the sub-images displayed in the first plurality of cells correspond to the incoming light detected through the second plurality of cells.

15. A method, comprising:

displaying, using some of a plurality of display pixels, a sub-image in each particular cell of a plurality of cells, the plurality of cells being arranged in a grid pattern;

accessing vision correction parameters of a user;

performing linear transformations on a plurality of the sub-images of the plurality of cells according to the vision correction parameters of the user; and

shifting the plurality of sub-images of the plurality of cells according to the linear transformations, thereby providing digital vision correction for the user.

16. The method of claim 15, wherein the vision correction parameters comprise an ophthalmological prescription of the user.

17. The method of claim 16, wherein the ophthalmological prescription comprises:

a spherical diopter value;

a cylindrical diopter value; and

an angle value.

18. The method of claim 15, wherein the linear transformations comprise:

matrix operations;

scale operations;

shear operations;

or

rotation operations.

19. The method of claim 15, wherein shifting the plurality of sub-images of the plurality of cells according to the linear transformations comprises shifting the plurality of sub-images of the plurality of cells towards a center cell when the vision correction parameters of the user indicate that the user is nearsighted.

20. The method of claim 15, wherein shifting the plurality of sub-images of the plurality of cells according to the linear transformations comprises shifting the plurality of sub-images of the plurality of cells away from a center cell when the vision correction parameters of the user indicate that the user is farsighted.