Dynamic parallax barrier autosteroscopic display system and method

• US 8,248,462 B2
• Filed: 04/16/2007
• Issued: 08/21/2012
• Est. Priority Date: 12/15/2006
• Status: Expired due to Fees

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: Board of Trustees of The University of Illinois
• Inventors: Peterka, Thomas, Sandin, Daniel
• Primary Examiner(s): SERRAO, RANODHI N
• Application Number:
  US11/787,435
• Publication Number:
  US 20080143895A1
• Time in Patent Office: 1,954 Days
• Field of Search: 348/54, 348/55, 349/15, 345/19
• US Class Current: 348/54
• CPC Class Codes: A63F 2300/8082 Virtual reality
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/31 involving active parallax barriers involving directional light or back-light sources G02B30/33
• CPC Class Codes: G06F 3/04815 Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
• CPC Class Codes: H04N 13/275 from 3D object models, e.g. computer-generated stereoscopic image signals
• CPC Class Codes: H04N 13/286 having separate monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/349 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 Class Codes: H04N 13/368 for two or more viewers
• CPC Class Codes: H04N 13/373 for tracking forward-backward translational head movements, i.e. longitudinal movements

Abstract

Embodiments of the invention provide a dynamic parallax barrier autostereoscopic system and method for one and multiple users with user tracking. One example embodiment of the invention is a dynamic parallax barrier autostereoscopic virtual reality display system includes a display including a front display plane and a rear display plane. The front display plane dynamically generates barrier strips with transparent regions therebetween. The rear display plane generates images viewable through the transparent regions to create a virtual reality effect for a user or users.

Claims

1. A dynamic parallax barrier autostereoscopic gaming system, comprising:

a display that generates front and rear displays each in a different image plane, said front display providing dynamic barrier strips with transparent regions therebetween, said rear display providing images viewable through said transparent regions, said front display includes a front liquid crystal display plane, said rear display includes a rear liquid crystal display plane, said front liquid crystal display plane providing said dynamic barrier strips with said transparent regions therebetween, said rear liquid crystal display plane providing said images viewable through said transparent regions so as to provide three-dimensional imagery;

a tracking system that tracks the respective position of at least a first user and a second user;

a controller that controls the display for displaying said dynamic barrier strips and said images, wherein each of said first and second users views different imagery, said controller further communicating with said tracking system and dynamically controlling said display in response to movement of one or more of said first and second users, said controller communicating with said display and causing said display to simultaneously display different three dimensional imagery to each of said first and second users, said controller being further configured to determine an outcome of a wagering game; and

an interface that receives wagers from users to play said wagering game.

2. An autostereoscopic parallax gaming system of claim 1 wherein said controller further controls said display to display both of a two-dimensional imagery and said three-dimensional imagery to said first and second users.

3. An autostereoscopic parallax gaming system of claim 2 wherein said controller causes said display to display said two dimensional imagery to said first and second users simultaneously with said three dimensional imagery, said three dimensional imagery being displayed on different portions of the rear one of said image planes.

4. An autostereoscopic parallax gaming system of claim 1 wherein said barrier strips define a barrier period, and wherein said barrier period is optimized for each of the different images according to the distance that each of the at least a first and second user is from said display according to the relation:

p/t=(2e−

p)/(d+l)

where;

p=barrier period

t=optical thickness between front and rear screens

e=interocular distance

d=normal distance from eyes to front screen plane.

5. An autostereoscopic parallax gaming system of claim 1, wherein said controller in causing said display to display said different images is configured to generate at least two pairs of left and right rear screen channel images and to dynamically render said barrier strips in a spatial arrangement with said rear screen channel images to result in at least two simultaneous autostereoscopic images being perceived by said first and second users, said controller further causing said display to display one each of said autostereoscopic images to one each of said first and second users as said users move relative to said display element.

6. An autostereoscopic parallax gaming system of claim 1 wherein said barrier strips define a barrier period, and wherein said controller dynamically sets said barrier period to minimize conflicts between eyes of said at least a first and a second user and virtual lobes.

7. An autostereoscopic parallax gaming system of claim 1 further comprising at least one tool linked to said controller and configured to be manipulated by the at least one of said first and second users to thereby interact with said images displayed to each of said first and second users.

8. An autostereoscopic parallax gaming system of claim 7 wherein:

said at least one tool comprises at least a first and a second tool, said first tool for being manipulated by said first user and said second tool for being manipulated by said second user;

said controller causing images of each of said first and second tools to be displayed on said display and to dynamically change said images of said first and second tools in response to manipulation of said first and second tools by said first and second users, respectively; and

said controller causing said display to display said first tool image only to said first user and to display said second tool image only to said second user.

9. An autostereoscopic parallax gaming system of claim 1 wherein:

each of said front and rear liquid crystal displays are illuminated by a single back light; and

said front and rear image planes of said display being asynchronously controllable whereby a first frame rate on said front image plane can be at least twice a second frame rate of said rear image plane.

10. An autostereoscopic parallax gaming system of claim 9 wherein said front and rear image planes can be controlled synchronously whereby the frame rate of said front display is substantially the same as the frame rate of said rear display, and wherein said controller dynamically switches between said synchronous and asynchronous control in response to rapid user movement relative to said display.

11. An autostereoscopic parallax gaming system of claim 1 wherein said at least a first and second users comprise at least a third user.

12. An autostereoscopic parallax gaming system of claim 1, further comprising:

a physical desktop workspace including a housing;

a haptic touch interface; and

a partially transparent mirror,

wherein the display is positioned by said housing with respect to the partially transparent mirror, the display and partially transparent mirror being positioned by the housing to create an augmented reality environment that integrates the user'"'"'s hands with virtual three-dimensional (3D) models in the physical desktop workspace.

13. An autostereoscopic parallax gaming system of claim 1, wherein said controller provides gaming imagery signals to said display, and wherein each of said users competes in said wagering game.

14. An autostereoscopic parallax gaming system of claim 1, wherein the controller is further configured to maintain an accounting of winnings from said wagering game.

15. An autostereoscopic parallax gaming system of claim 1, wherein said first and second liquid crystal displays are illuminated by one or more back lights.

16. A dynamic parallax barrier autostereoscopic gaming system, comprising:

a display that generates front and rear displays each in a different image plane, said front display providing dynamic barrier strips with transparent regions therebetween, said rear display providing images viewable through said transparent regions, said front display includes a front liquid crystal display plane and said rear display includes a rear liquid crystal display plane, said front liquid crystal display plane providing said dynamic barrier strips with said transparent regions therebetween, said rear liquid crystal display plane providing said images viewable through said transparent regions so as to provide three-dimensional imagery, said front liquid crystal display plane and said rear liquid crystal display plane are in a stacked configuration, said first and second liquid crystal display devices being illuminated by one or more back lights;

a tracking system that tracks the respective position of at least a first user and a second user;

a controller that controls the display for displaying said dynamic barrier strips and said images, wherein each of said first and second users views different imagery, said controller further communicating with said tracking system and configured to dynamically control said display in response to movement of one or more of said first and second users, said controller communicating with said display and being configured to cause said display to simultaneously display different three dimensional imagery to each of said first and second users, said controller being further configured to determine an outcome of a wagering game; and

wherein said front and rear planes are configured to be controlled asynchronously whereby a first frame rate on said front plane may be at least twice a second frame rate of said rear plane display.

17. An autostereoscopic parallax gaming system of claim 16, wherein said three-dimensional imagery comprises a virtual slot machine, a card game, a vehicle race, or a sporting event, or any combination thereof.