Multiview display for rendering multiview content, and dynamic light field shaping system and layer therefor

Patent metadata

Field	Value
Publication number	US-2023269359-A1
Application number	US-202118006451-A
Country	US
Kind code	A1
Filing date	Jul 23, 2021
Priority date	Jul 24, 2020
Publication date	Aug 24, 2023
Grant date	—

Abstract

Multiview displays are for rendering multiview content. A dynamic light field shaping system interfaces with light emanated from underlying pixels of a digital display to define a plurality of distinct view zones. The system includes a light field shaping layer (LFSL), which includes a series of light field shaping elements disposable relative to the digital display so to align the series of light field shaping elements with the underlying pixels in accordance with a current light field shaping geometry to thereby define a number of distinct view zones in accordance with the current geometry. The system may further include an actuator operable to translate the LFSL relative to the digital display to adjust alignment of the light field shaping elements with the underlying pixels in accordance with an adjusted geometry, thereby adjusting the plurality of distinct view zones.

First claim

What is claimed is:

1 . A light field shaping system for interfacing with light emanated from underlying pixels of a digital display to define a plurality of distinct view zones, the system comprising:
a light field shaping layer (LFSL) comprising a series of light field shaping elements and disposable relative to the digital display so to align said series of light field shaping elements with said underlying pixels in accordance with a current light field shaping geometry to thereby define the plurality of distinct view zones in accordance with said current geometry; an actuator operable to translate said LFSL relative to the digital display to adjust alignment of said light field shaping elements with the underlying pixels in accordance with an adjusted geometry thereby adjusting the plurality of distinct view zones; and a digital data processor operable to activate said actuator to translate said LFSL to dynamically adjust the plurality of distinct view zones.

2 . The light field shaping system of claim 1 , wherein said actuator is operable to translate said LFSL in a direction perpendicular to the digital display.

3 . The light field shaping system of claim 1 , wherein said actuator is operable to translate said LFSL in a direction parallel to the digital display.

4 . The light field shaping system of claim 1 , wherein said actuator comprises a plurality of respective actuators operable to translate said LFSL in respective directions relative to the digital display.

5 . The light field shaping system of claim 1 , wherein said LFSL comprises a parallax barrier (PB).

6 . (canceled)

7 . (canceled)

8 . (canceled)

9 . The light field shaping system of claim 5 , wherein said PB comprises a first PB, wherein the system further comprises a second PB disposed relative to the digital display so to define an effective PB dimension for said LFSL, at least in part, as a function of a relative positioning of said first PB to said second PB, that at least partially dictates formation of the plurality of distinct view zones.

10 . The light field shaping system of claim 9 , wherein said actuator dynamically adjusts said relative positioning to dynamically adjust said effective PB dimension and thereby adjust formation of the plurality of distinct view zones.

11 . The light field shaping system of claim 9 , wherein said LFSL comprises said first PB and said second PB.

12 . The light field shaping system of claim 1 , wherein the system stores distinct LFSL geometries designated to correspondingly define a respective number of distinct view zones, and wherein said digital data processor is operable to activate said actuator, given a selected number of distinct view zones, to translate said LFSL to adjust said current geometry to a corresponding one of said distinct geometries to correspondingly select formation of said selected number of distinct view zones.

13 . The light field shaping system of claim 1 , wherein said digital processor is further operable to receive as input view zone characterization data related to one or more of the plurality of distinct view zones, and automatically initiate a corresponding translation of said LFSL via said actuator to optimize formation of said one or more of the plurality of distinct view zones.

14 . The light field shaping system of claim 13 , wherein said input data is representative of at least one of a view zone crosstalk, a view zone overlap, a view zone size, or a view zone boundary.

15 . The light field shaping system of claim 13 , wherein said input data comprises a location of a viewer relative to a given view zone, and wherein said optimization optimizes formation of said given view zone for the viewer.

16 . The light field shaping system of claim 13 , wherein said input data is acquired via an optical sensor operated within said one or more view zones to capture light emanated therein by the digital display via said LFSL, and communicated therefrom for processing by said digital processor.

17 . The light field shaping system of claim 16 , wherein said optical sensor comprises a camera on a mobile communication device operated by a viewer via a corresponding mobile application in communication with said digital processor.

18 . (canceled)

19 . (canceled)

20 . (canceled)

21 . (canceled)

22 . (canceled)

23 . (canceled)

24 . The light field shaping system of claim 1 , wherein said actuator is operable to translate said LFSL in response to a user adjustment signal received from a remote device.

25 . (canceled)

26 . (canceled)

27 . (canceled)

28 . (canceled)

29 . A method for dynamically adjusting a plurality of distinct view zones in a multiview display (MVD) system comprising a digital display defined by an array of pixels, and light field shaping layer (LFSL) disposed relative thereto, the method comprising:
accessing current view zone characterization data related to one or more of the plurality of distinct view zones produced according to a current LFSL geometry relative to the array of pixels; digitally identifying a desirable adjustment in said view zone characterization based on said current view zone characterization data; and automatically translating the LFSL relative to the array of pixels, via a digital processor and an actuator operatively coupled to the LFSL, so to adjust said current LFSL geometry and thereby correspondingly adjust formation of the plurality of distinct view zones in accordance with said desirable adjustment.

30 . The method of claim 29 , wherein said desirable adjustment comprises an increased or decreased number of distinctly formed view zones.

31 . The method of claim 29 , wherein said current view zone characterization data comprises view zone image data indicative of a level of view zone crosstalk, and wherein said desirable adjustment comprises a reduction in view zone crosstalk within at least one of the distinct view zones.

32 . The method of claim 29 , wherein said current view zone characterization data comprises indication of given view zone boundary relative to a given viewer, and wherein said desirable adjustment comprises a distancing of said view zone boundary relative to said given viewer.

33 . The method of claim 32 , wherein said distancing is dynamically achieved upon laterally shifting said boundary, adjusting a lateral breadth of said given view zone, or increasing a depth of said given view zone to better accommodate a location of said given viewer.

34 . The method of claim 29 , wherein said translating comprises at least one of laterally translating the LFSL, or a component thereof, parallel to the digital display, translating the LFSL, or a component thereof, perpendicularly to the digital display, or translating a component of the LFSL to correspondingly adjust an effective light field shaping pitch of the LFSL.

35 . The method of claim 29 , wherein said current view zone characterization data is representative of at least one of a view zone crosstalk, a view zone overlap, a view zone size, or a view zone boundary.

36 . (canceled)

37 . (canceled)

38 . (canceled)

39 . The method of claim 29 , f

Assignees

• Evolution Optiks Ltd

Inventors

• Mihali Raul
• Tat Thanh Quang
• Darvishi Mostafa
• Etigson Joseph Ivar

Classifications

• H04N13/305

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title

• H04N13/349

  Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking (for viewing without the aid of special glasses using fly-eye lenses H04N13/307) · CPC title

• H04N13/302

  for viewing without the aid of special glasses, i.e. using autostereoscopic displays · CPC title

• H04N13/366

  using viewer tracking · CPC title

• H04N13/351 Primary

  for displaying simultaneously · CPC title