Display with elastic light manipulator

• US 8,964,013 B2
• Filed: 05/05/2010
• Issued: 02/24/2015
• Est. Priority Date: 12/31/2009
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Bennett, James D., Karaoguz, Jeyhan
• Primary Examiner(s): Atala, Jamie
• Assistant Examiner(s): Mung, On S
• Application Number:
  US12/774,307
• Publication Number:
  US 20110157336A1
• Time in Patent Office: 1,756 Days
• Field of Search: 348 53- 56, 348/59, 348/51
• US Class Current: 348/59
• CPC Class Codes: G02B 6/00 Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
• CPC Class Codes: G03B 35/24 using apertured or refractive resolving means on screens or between screen and eye
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2320/028 by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• 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: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: H04N 13/00 Stereoscopic video systems; Multi-view video systems; Details thereof
• CPC Class Codes: H04N 13/139 Format conversion, e.g. of frame-rate or size
• CPC Class Codes: H04N 13/161 Encoding, multiplexing or demultiplexing different image signal components for multi-view video sequence encoding H04N19/597
• CPC Class Codes: H04N 13/189 Recording image signals; Reproducing recorded image signals
• CPC Class Codes: H04N 13/194 Transmission of image signals
• CPC Class Codes: H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/312 the parallax barriers being placed behind the display panel, e.g. between backlight and spatial light modulator [SLM]
• CPC Class Codes: H04N 13/315 the parallax barriers being time-variant
• CPC Class Codes: H04N 13/332 : Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
• CPC Class Codes: H04N 13/351 : for displaying simultaneously
• CPC Class Codes: H04N 13/359 : Switching between monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/361 : Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background
• CPC Class Codes: H04N 13/366 : using viewer tracking
• CPC Class Codes: H04N 13/383 : for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes
• CPC Class Codes: H04N 13/398 : Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 2013/403 : the images being monoscopic
• CPC Class Codes: H04N 2013/405 : the images being stereoscopic or three dimensional
• CPC Class Codes: H04N 21/235 : Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/4122 : additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/435 : Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04S 7/303 : Tracking of listener position or orientation

Abstract

A display system is provided that enables three-dimensional images to be displayed. The display system includes an elastic light manipulator positioned proximate an image generator. The image generator includes a pixel array. The elastic light manipulator includes an elastic material and is mounted in a manner that allows for automated stretching thereof. For instance, the elastic light manipulator may be an elastic lenticular lens, an elastic parallax barrier, etc. Because the elastic light manipulator can be stretched, optical properties of the elastic light manipulator can be dynamically modified, thereby changing the manner in which light emanating from the pixel array is delivered to the eyes of viewer(s). This allows for adaptive accommodation of, for example, a changing viewer sweet spot. The elastic light manipulator may be automatically rolled up or otherwise automatically removed from in front of the image generator in order to facilitate switching between 2D and 3D views.

Claims

1. A display system that delivers a first image to a first location and a second image to a second location, the display system comprising:

an array of pixels configured to emit light; and

an elastic light manipulator configured to receive and manipulate the light emitted by the array of pixels to form different images at different locations, the elastic light manipulator having a first length and being configured to be stretched from the first length to a selectable second length by applying a tensile stress to the elastic light manipulator to form the first image at the first location and the second image at the second location.

2. The display system of claim 1, wherein the elastic light manipulator comprises:

an array of elastic sub-lenses.

3. The display system of claim 1, wherein the elastic light manipulator comprises:

a plurality of parallax barrier elements.

4. The display system of claim 1, wherein the first location corresponds to a location of a right eye of a user;

wherein the second location corresponds to a location of a left eye of the user; and

wherein the first and second images are configured to be perceived by the user as a three-dimensional image.

5. The display system of claim 4,

wherein the elastic light manipulator is configured to be stretched from the first length to the selectable second length to further form a third image to a third location and a fourth image to a fourth location;

wherein the third location corresponds to a location of a right eye of a second user;

wherein the fourth location corresponds to a location of a left eye of the second user; and

wherein the third and fourth images are configured to be perceived by the second user as a three-dimensional image.

6. The display system of claim 4, wherein light emitted by a portion of the array of pixels is not blocked by the elastic light manipulator, the light emitted by the portion of the array of pixels forming a two-dimensional image at the first and second locations, the portion including a subset of pixels in the array of pixels.

7. The display system of claim 1, wherein the first location corresponds to a location of a right eye of a user;

wherein the second location corresponds to a location of a left eye of the user; and

wherein the first and second images are configured to be perceived by the user as a two-dimensional image.

8. The display system of claim 1, wherein the elastic light manipulator is configured to be stretched from the first length to the selectable second length to form the first and second images at a first distance from the array of pixels;

and

wherein the elastic light manipulator is further configured to be stretched from the first length to a selectable third length to form the first and second images at a second distance from the array of pixels that is different from the first distance.

9. The display system of claim 1, further comprising:

a stretching device that includes a stretching element coupled to a side of the elastic light manipulator, the stretching element configured to stretch the elastic light manipulator from the first length to the selectable second length.

10. The display system of claim 1, further comprising:

a stretching device that includes stretching elements coupled to opposing sides of the elastic light manipulator, the stretching elements configured to stretch the elastic light manipulator from the first length to the selectable second length.

11. The display system of claim 1, further comprising:

a retraction device configured to retract the elastic light manipulator from a position that is between the array of pixels and a user to enable the user to view a two-dimensional image with respect to the array of pixels.

12. The display system of claim 11, wherein the retraction device is configured to retract the elastic light manipulator to a rolled state.

13. The display system of claim 1, further comprising:

a module configured to change data that are associated with the array of pixels to enable the elastic light manipulator to form the first image at the first location.

14. The display system of claim 1, wherein the elastic light manipulator has a first width that is perpendicular to the first length;

and

wherein the elastic light manipulator is configured to be stretched from the first length to the selectable second length and from the first width to a selectable second width to form the first image to the first location and the second image to the second location.

15. A display system that provides a first image to a first location and a second image to a second location, the display system comprising:

an array of pixels configured to emit light; and

a lenticular lens comprising an array of elastic sub-lenses that is configured to receive and manipulate the light emitted by the array of pixels to form different images at different locations, the lenticular lens having a first length, and the lenticular lens configured to be stretched from the first length to a selectable second length by applying a tensile stress to the lenticular lens to form the first image to the first location and the second image at the second location.

16. The display system of claim 15, wherein the first location corresponds to a location of a right eye of a user;

wherein the second location corresponds to a location of a left eye of the user; and

wherein the first and second images are configured to be perceived by the user as a three-dimensional image.

17. The display system of claim 16,

wherein the lenticular lens is configured to be stretched from the first length to the selectable second length to further form a third image to a third location and a fourth image to a fourth location;

wherein the third location corresponds to a location of a right eye of a second user;

wherein the fourth location corresponds to a location of a left eye of the second user; and

wherein the third and fourth images are configured to be perceived by the second user as a three-dimensional image.

18. The display system of claim 15, further comprising:

a stretching device that includes a stretching element coupled to a side of the lenticular lens, the stretching element configured to stretch the lenticular lens across the array of pixels.

19. The display system of claim 15, further comprising:

a stretching device that includes stretching elements coupled to opposing sides of the lenticular lens, the stretching elements configured to stretch the lenticular lens across the array of pixels.

20. The display system of claim 15, further comprising:

a retraction device configured to retract the lenticular lens from a position that is between the array of pixels and a user to enable the user to view a two-dimensional image with respect to the array of pixels.

21. The display system of claim 20, wherein the retraction device is configured to retract the lenticular lens to a rolled state.

22. A method of forming a first image to a first location and a second image to a second location, comprising:

p1 stretching an elastic light manipulator from a first length to a selectable second length by applying tensile stress to the elastic light manipulator;

receiving light emitted by an array of pixels at the elastic light manipulator; and

manipulating the light emitted by the array of pixels by the elastic light manipulator to form the first image at the first location and the second image at the second location.

23. The method of claim 22, wherein stretching the elastic light manipulator comprises:

stretching an elastic light manipulator that includes an array of elastic sub-lenses from the first length to the selectable second length.

24. The method of claim 22, wherein stretching the elastic light manipulator comprises:

stretching an elastic light manipulator that includes a plurality of parallax barrier elements from the first length to the selectable second length.

25. The method of claim 22, wherein manipulating the light emitted by the array of pixels to form the first image at the first location and the second image at the second location comprises:

manipulating the light emitted by the array of pixels to form the first image at the first location that corresponds to a location of a right eye of a user and to provide the second image at the second location that corresponds to a location of a left eye of the user, the first and second images being configured to be perceived by the user as a three-dimensional image.

26. The method of claim 25, further comprising:

manipulating the light emitted by the array of pixels by the elastic light manipulator to further form a third image to a third location that corresponds to a location of a right eye of a second user and to form a fourth image to a fourth location that corresponds to a location of a left eye of the second user, the third and fourth images being configured to be perceived by the second user as a three-dimensional image.

27. The method of claim 25, further comprising:

passing b the elastic light manipulator light emitted by a subset of pixels in the array of pixels to form a two-dimensional image at the first and second locations.

28. The method of claim 22, wherein stretching the elastic light manipulator comprises:

securing a first edge of the elastic light manipulator; and

pulling a second edge of the elastic light manipulator that opposes the first edge to stretch the elastic light manipulator from the first length to the selectable second length.

29. The method of claim 22, wherein stretching the elastic light manipulator comprises:

pulling opposing sides of the elastic light manipulator to stretch the elastic light manipulator from the first length to the selectable second length.

30. The method of claim 22, further comprising:

retracting the elastic light manipulator from a position that is between the array of pixels and a user to enable the user to view a two-dimensional image with respect to the array of pixels.

31. The method of claim 30, wherein retracting the elastic light manipulator comprises:

retracting the elastic light manipulator to a rolled state.

32. The method of claim 22, wherein stretching the elastic light manipulator comprises:

stretching the elastic light manipulator from the first length to the selectable second length and from a first width to a selectable second width

wherein the first length is perpendicular to the first width.