IP Library Granted Patent US 11,828,936
Granted Patent B1
US 11,828,936 · App. 17/510,238 · Granted Nov 28, 2023

Light field display tilting

Inventors: Ahmad Byagowi (Fremont, CA); Ramesh Raskar (Palo Alto, CA); Andrew Hamilton Coward (Menlo Park, CA); Ethan Kroll Gordon (Mountain View, CA)
Assignee: Meta Platforms Technologies, LLC
G02B27/0068G02B3/0056G02B27/0176G09G5/38G02B27/01G02B27/017G02B27/0179G02B2027/0154G02B2027/0178
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Quick Facts
Patent No.
US 11,828,936
App. No.
17/510,238
Granted
Nov 28, 2023
Kind
B1
Abstract

One embodiment of the present application sets forth a wearable device that includes a display comprising a plurality of pixels and configured to emit light, and a micro-lens array located adjacent to the display, and configured to produce a light field by altering the light emitted by the display, where at least one of the display or the micro-lens array is configured to move from a first position to a second position that aligns a first pixel in the plurality of pixels relative to the micro-lens array.

Claims (34)

1. An apparatus, comprising:

a display positioned in parallel to a display plane according to a first configuration, comprising a plurality of pixels, and emitting light;

a micro-lens array positioned adjacent to the display in parallel to the display plane according to the first configuration and producing a light field by altering the light emitted by the display;

a physical controller that is coupled to the display or the micro-lens array that extends along the display plane; and

a controller that receives video signals and generates physical control signals that cause the physical controller to move via bending; wherein the controller;

determines, based on one or more display characteristics of the light emitted by the display, a second configuration for the display and the micro-lens array, wherein, in the second configuration, (i) at least a portion of the display and the micro-lens array is positioned in parallel to a plane different from the display plane, and (ii) relative positions of the display and the micro-lens array align one or more pixels included in the plurality of pixels relative to one or more micro-lenses included in the micro-lens array according to the one or more display characteristics, and

generates physical control signals corresponding to the second configuration to cause the physical controller to move,

wherein at least a portion of one of the display or the micro-lens array is caused to move via bending from the first position to the second position according to the movement of the physical controller.

2. The apparatus of claim 1 , wherein the at least a portion of the display or the micro-lens array is caused to move via bending and tilting.

3. The apparatus of claim 1 , wherein the at least a portion of one of the display or the micro-lens array is caused to move via bending or tilting according to the movement of the physical controller comprises:

the physical controller performing a first motion on the display to move the display to a first position in the relative positions; and

upon performing the first motion, the physical controller performing a second motion on the micro-lens array to a second position in the relative positions.

4. The apparatus of claim 1 , wherein:

in the second configuration, a first subset of pixels included in the plurality of pixels is aligned relative to a first subset of micro-lenses included in the micro-lens array, and

the first subset of pixels emits a first set of light rays that refract at the micro-lens array at a first set of frame angles to cause a first portion of a frame to be displayed.

5. The apparatus of claim 4 , wherein:

the controller causes a second portion of the frame to be displayed by causing at least a portion of one of the display or the micro-lens array to move from the relative positions according to the second configuration to second relative positions according to a third configuration,

in the third configuration, a second subset of pixels included in the plurality of pixels are aligned relative to a second subset of micro-lenses included in the micro-lens array, and

the second subset of pixels emits a second set of light rays that refract at the micro-lens array at a second set of frame angles.

6. The apparatus of claim 4 , wherein the first set of light rays arrives at a pupillary axis at a third set of frame angles.

7. The apparatus of claim 1 , wherein the one or more pixels comprise a first set of micro-pixels.

8. The apparatus of claim 1 , wherein a first portion of the display moves via bending or tilting according to the movement of the physical controller without a second portion of the display moving.

9. The apparatus of claim 1 , wherein a first micro-lens included in the micro-lens array refracts a first light ray emitted from a first pixel included in the plurality of pixels at a first angle relative to the display plane.

10. A system, comprising:

a display positioned in parallel to a display plane according to a first configuration, comprising a plurality of pixels, and emitting light;

a micro-lens array positioned adjacent to the display in parallel to the display plane according to the first configuration and producing a light field by altering the light emitted by the display;

a physical controller that is coupled to the display or the micro-lens array that extends along the display plane; and

a controller that receives video signals and generates physical control signals that cause the physical controller to move via bending; wherein the controller;

determines, based on one or more display characteristics of the light emitted by the display, a second configuration for the display and the micro-lens array, wherein, in the second configuration, (i) at least a portion of the display and the micro-lens array is positioned in parallel to a plane different from the display plane, and (ii) relative positions of the display and the micro-lens array align one or more pixels included in the plurality of pixels relative to one or more micro-lenses included in the micro-lens array according to the one or more display characteristics, and

generates physical control signals corresponding to the second configuration to cause the physical controller to move,

wherein at least a portion of one of the display or the micro-lens array is caused to move via bending from the first position to the second position according to the movement of the physical controller.

11. The system of claim 10 , wherein the at least a portion of one of the display or the micro-lens array is caused to move via bending or tilting according to the movement of the physical controller comprises:

the physical controller performing a first motion on the display to move the display to a first position in the relative positions; and

upon performing the first motion, the physical controller performing a second motion on the micro-lens array to a second position in the relative positions.

Assignments (2)
CHANGE OF NAME Recorded Jul 12, 2022
From: FACEBOOK TECHNOLOGIES, LLC
To: META PLATFORMS TECHNOLOGIES, LLC
Reel/Frame 060637/0858 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2021
From: BYAGOWI, AHMAD; RASKAR, RAMESH; COWARD, ANDREW HAMILTON; GORDON, ETHAN KROLL
To: FACEBOOK TECHNOLOGIES, LLC
Reel/Frame 058144/0845 →
Continuity (1)
Continuation 16028382 · Jul 5, 2018