US 9,813,695 B2
Display device with free focus capability
Bart Kroon, Eindhoven (NL); Marcellinus Petrus Carolus Michael Krijn, Eindhoven (NL); Frederik Jan De Bruijn, Eindhoven (NL); Mark Thomas Johnson, Arendonk (BE); Philip Steven Newton, Eindhoven (NL); Bart Andre Salters, Eindhoven (NL); Siebe Tjerk De Zwart, Valkenswaard (NL); and Johannes Henricus Maria Korst, Eindhoven (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 14/356,639
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Oct. 30, 2012, PCT No. PCT/IB2012/056002
§ 371(c)(1), (2) Date May 7, 2014,
PCT Pub. No. WO2013/068882, PCT Pub. Date May 16, 2013.
Claims priority of provisional application 61/557,442, filed on Nov. 9, 2011.
Claims priority of provisional application 61/559,300, filed on Nov. 14, 2011.
Prior Publication US 2014/0300711 A1, Oct. 9, 2014
Int. Cl. H04N 13/04 (2006.01); H04N 13/00 (2006.01)
CPC H04N 13/0402 (2013.01) [H04N 13/0033 (2013.01); H04N 13/0406 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel comprising a set of pixels the pixels being spatially distributed over the display panel, and each pixel being for providing a light output, the set of pixels comprising a plurality of different subsets of pixels, each subset of pixels comprising one or more pixels of the set of pixels, and
an imaging unit that provides the light output of the one or more pixels of a subset of pixels to form pixel images on a plurality of view areas on an imaginary plane located at a first distance in front of the display,
wherein the display panel provides a 3D display of a scene,
wherein each view area of the plurality of view areas represents a view of the scene from a different viewpoint,
wherein the plurality of view areas do not overlap each other,
wherein each subset of pixels is associated with an imaging subunit of a plurality of imaging subunits,
wherein each imaging subunit of the plurality of imaging subunits directs the light output of the subsets of pixels associated with the imaging subunit to the plurality of view areas,
wherein the imaginary plane comprises an imaginary circle having a diameter equal to or smaller than that of the pupil of an eye,
wherein the imaginary circle completely encloses at least two of the plurality of view areas,
wherein, in a first time interval, each imaging unit provides the light output of a first subset of pixels to a first view area, and in a second time interval, each imaging unit provides the light output of the first subset of pixels to a second view area.