Energy Efficient Compact Display For Mobile Device
First Claim
Patent Images
1. An apparatus for use in a compact display device having a light emitting source, said apparatus comprising:
- a microlens array comprising a plurality of microscopic lenses, which is suspended over the plane of the display device screen and which includes substantially the same number of lenses as there are light emitting picture elements; and
a beam forming means for collimating the lights emitted by the picture elements to a narrow beam; and
a beam steering means for steering the collimated beam to a specific direction in a controllable manner; and
a tracking means for acquiring and tracking the head movements of a plurality of viewers and for converting the tracking data into an estimation of the head and eye locations for said viewers;
Wherein the apparatus is adapted to transform the output from the tracking means into a control signal to control the beam steering means to insure that the beam of light projected from the display device always follows the head movements of said plurality of viewers.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided herein are methods and systems for providing an energy efficient display for mobile devices which has the means to locate and track the head movements of viewers and steer focused display light output torward the direction or directions of users without user intervention. The required optical elements for both emissive and non-emissive steered display light output are discussed, as are the elements for head tracking.
73 Citations
44 Claims
-
1. An apparatus for use in a compact display device having a light emitting source, said apparatus comprising:
-
a microlens array comprising a plurality of microscopic lenses, which is suspended over the plane of the display device screen and which includes substantially the same number of lenses as there are light emitting picture elements; and
a beam forming means for collimating the lights emitted by the picture elements to a narrow beam; and
a beam steering means for steering the collimated beam to a specific direction in a controllable manner; and
a tracking means for acquiring and tracking the head movements of a plurality of viewers and for converting the tracking data into an estimation of the head and eye locations for said viewers;
Wherein the apparatus is adapted to transform the output from the tracking means into a control signal to control the beam steering means to insure that the beam of light projected from the display device always follows the head movements of said plurality of viewers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A method for displaying video image in a compact screen, said method comprising:
-
a) tracking and acquiring the head movements of a plurality of viewers; and
b) converting the tracking data into a real time estimation of the head and eye locations for said viewers; and
c) collimating the lights emitted by the picture elements of said compact screen to a narrow beam or a plurality of beams;
d) steering said collimated beam or beams to a specific direction in a controllable manner; and
e) transforming said viewer'"'"'s head and eye location data into a control signal to control the beam of light projected from said compact screen such that the light always follows the head movements of said plurality of viewers. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44)
-
-
41. The method of claim 41 wherein moving said microlens array comprises applying appropriate voltages to each of a plurality of piezoelectric bimorph actuators.
Specification