Multiview display device

• US 9,316,841 B2
• Filed: 03/04/2005
• Issued: 04/19/2016
• Est. Priority Date: 03/12/2004
• Status: Active Grant

• Current Assignee: Leia Inc.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: De Zwart, Siebe Tjerk, Ijzerman, Willem Lubertus, Op De Beeck, Marc Joseph Rita, Berretty, Robert-Paul Mario, Braspenning, Ralph Antonius Cornelus
• Primary Examiner(s): Awad, Amr
• Assistant Examiner(s): MATTHEWS, ANDRE L
• Application Number:
  US10/598,643
• Publication Number:
  US 20070177006A1
• Time in Patent Office: 4,064 Days
• US Class Current: 1/1
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: H04N 13/302 for viewing without the aid of special glasses, i.e. using autostereoscopic displays
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 5/14 Picture signal circuitry for video frequency region cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00

Abstract

A multiview display device displays multiple views having respective viewing angles related to an object to be displayed. The display device includes an optical device for displaying multiple viewing cones. A first cone of the multiple viewing cones has different views so that a different view is observed by a right eye and a left eye of a viewer of the multiview display device. The different views of the first cone have an angular distribution relative to the display device, where sets of image data are provided such that the angular distribution has a first part of adjacent views with increasing viewing angle and a second part of adjacent views with decreasing viewing angle. Further, the angular distribution has a first one of the views in between a maximum view which corresponds to a maximum viewing angle and a minimum view which corresponds to a minimum viewing angle.

Claims

1. A multiview display device for displaying multiple views for observation at different observation angles relative to the multiview display device including at a first observation angle and a second observation angle, the multiple views having respective viewing angles related to an object to be displayed, the display device comprising:

an optical device configured to display multiple viewing cones, a first cone of the multiple viewing cones comprises different views so that a different view is observed by a right eye and a left eye of a viewer of the multiview display device, the different views of the first cone having an angular distribution relative to the display device; and

a processor configured to provide the optical device with sets of image data corresponding to the respective views, whereby the sets of image data are provided such that;

the angular distribution has a first part of adjacent views with increasing viewing angle and a second part of adjacent views with decreasing viewing angle;

a difference between a viewing angle corresponding to the first observation angle of a first view at a first boundary of the first viewing cone and a viewing angle corresponding to the second observation angle of a second view at a second boundary of the first viewing cone is minimized; and

the angular distribution has a first one of the views in between a maximum view which corresponds to a maximum viewing angle and a minimum view which corresponds to a minimum viewing angle.

2. The multiview display device as claimed in claim 1, whereby the first part of adjacent views comprises a first number of views and the second part comprises a second number of views, a difference between the first number and the second number being minimal.

3. The multiview display device as claimed in claim 1, whereby the first part of adjacent views comprises a first number of views and the second part comprises a second number of views, the first number being higher than the second number but being lower than four times the second number.

4. The multiview display device as claimed in claim 1, whereby the first part of adjacent views comprises a first number of views and the second part comprises a second number of views, the first number being higher than the second number, whereby a portion of the sets of image data corresponding to one or more of the adjacent views with decreasing viewing angle has been blurred.

5. The multiview display device as claimed in claim 1, whereby a portion of the sets of image data is blurred, the amount of blur being applied to the adjacent views being related to the viewing angle.

6. The multiview display device as claimed in claim 1, whereby a first one of the sets of image data corresponding to a second one of the views which belongs to the first part, also corresponds to a third one of the views which belongs to the second part.

7. The multiview display device as claimed in claim 1, whereby the processor is further configured to provide the sets of image data such that the first one of the multiple viewing cones has the angular distribution at a first moment in time and has a further angular distribution at a second moment in time, the further angular distribution being different from the angular distribution.

8. The multiview display device as claimed in claim 7, comprising a shot-cut detector being arranged to control the processor in order to switch between the angular distribution and the further angular distribution on basis of a detected shot-cut in the image data.

9. The multiview display device as claimed in claim 1, comprising a further optical device configured to display further viewing cones, a second one of the further multiple viewing cones having a second angular distribution of the views relative to the display device being substantially different from the angular distribution.

10. A method of driving a multiview display device for displaying multiple views for observation at different observation angles relative to the multiview display device including at a first observation angle and a second observation angle, the multiple views having respective viewing angles related to an object to be displayed, the method comprising the act of:

displaying by an optical device multiple viewing cones, a first cone of the multiple viewing cones comprises different views so that a different view is observed by a right eye and a left eye of a viewer of the multiview display device, the different views of the first cone having an angular distribution of the views relative to the display device; and

providing the optical device with sets of image data corresponding to the respective views such that;

the angular distribution has a first part of adjacent views with increasing viewing angle and a second part of adjacent views with decreasing viewing angle;

minimizing a difference between a viewing angle corresponding to the first observation angle of a first view at a first boundary of the first viewing cone and a viewing angle corresponding to the second observation angle of a second view at a second boundary of the first viewing cone; and

the angular distribution has a first one of the views in between a maximum view which corresponds to a maximum viewing angle and a minimum view which corresponds to a minimum viewing angle.

11. A non-transitory computer-readable storage medium encoded with a computer program to be loaded into a computer arrangement, said computer program comprising instructions for causing the computer arrangement to drive a multiview display device for displaying multiple views for observation at different observation angles relative to the multiview display device including at a first observation angle and a second observation angle, the multiple views having respective viewing angles related to an object to be displayed, the display device comprising:

an optical device configured to display multiple viewing cones, a first cone of the multiple viewing cones comprises different views so that a different view is observed by a right eye and a left eye of a viewer of the multiview display device, the different views of the first cone having an angular distribution of the views relative to the display device; and

a driver configured to provide the optical device with sets of image data corresponding to the respective views, the computer arrangement comprising a processor and a memory, the computer program, after being loaded in the memory, providing said processor with a capability to provide the sets of image data to the driver such that;

the angular distribution has a first part of adjacent views with increasing viewing angle and a second part of adjacent views with decreasing viewing angle;

minimizing a difference between a viewing angle corresponding to the first observation angle of a first view at a first boundary of the first viewing cone and a viewing angle corresponding to the second observation angle of a second view at a second boundary of the first viewing cone; and

the angular distribution has a first one of the views in between a maximum view which corresponds to a maximum viewing angle and a minimum view which corresponds to a minimum viewing angle.