Stereoscopic display using microLED technology
AssigneeLumileds LLC
InventorsCharles André Schrama, Erno Fancsali
Life of this patent
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Abstract
An apparatus and method for displaying an image are disclosed. The apparatus includes independently-controllable microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with a video data signal such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile and a second portion of the emitted light is emitted at a second emission angle with a second emission profile. The first and second light portions form three-dimensional stereoscopic images.
Claims20
An apparatus for displaying an image, the apparatus comprising:
- a plurality of sets of light emitting diodes (LEDs), each LED being independently controllable, each set of LEDs corresponding to a different pixel of a display;
- and
- at least one lens positioned over the plurality of sets of LEDs, the at least one lens arranged to control an emission angle and an emission profile of light emitted by the LEDs, the sets of LEDs configured to receive control signals and in response switch between a plurality of modes that include a stereoscopic projection mode to provide a stereoscopic image and a general illumination mode to provide lighting without the stereoscopic image, and
- in the stereoscopic projection mode, the plurality of sets of LEDs configured to direct light through the at least one lens toward a first location with a first emission profile and direct light through the at least one lens toward a second location with a second emission profile, the light directed toward the first location and the light directed to the second location forming images of a scene from different viewing angles.
A method for presenting an image on a display, the method comprising:
- providing a plurality of sets of light emitting diodes (LEDs) and at least one lens positioned over the plurality of sets of LEDs, each LED being independently controllable;
- receiving, at the plurality of sets of LEDs, a control signal to indicate a mode to operate the plurality of sets of LEDs, the mode selectable from a set of modes that include a stereoscopic projection mode to provide a stereoscopic image and a general illumination mode to provide lighting without the stereoscopic image;
- and
- in the stereoscopic projection mode:
- receiving at least one video data signal;
- producing, with a first subset of the plurality of sets of LEDs, in response to the at least one video data signal, a first emission profile;
- directing the first emission profile through the at least one lens toward a first emission angle to form a first image of a scene on the display;
- producing, with a second subset of the plurality of sets of LEDs, in response to the at least one video data signal, a second emission profile;
- and
- directing the second emission profile through the at least one lens toward a second emission angle to form a second image of the scene on the display, the first and second images corresponding to different viewing angles of the scene.
An apparatus for displaying an image, the apparatus comprising:
- a plurality of sets of light emitting diodes (LEDs), each of the plurality of sets of LEDs corresponding to a pixel of a display, each set of LED comprising a plurality of LEDs, each LED being independently controllable;
- at least one lens arranged to control an emission angle and emission profile of light emitted by each of the LEDs, the at least one lens positioned over the at least one set of LEDs;
- and
- a display controller configured to:
- switch, using a control signal provided to the plurality of sets of LEDs, between a plurality of modes that include a stereoscopic projection mode to provide a stereoscopic image and a general illumination mode to provide lighting without the stereoscopic image, and
- in the stereoscopic projection mode, direct at least one video data signal to the plurality of sets of LEDs and control an intensity distribution of light from the LEDs in response to the at least one video data signal such that a first portion of the light is emitted through the at least one lens at a first emission angle with a first emission profile and a second portion of the light is emitted through the at least one lens at a second emission angle with a second emission profile, the first light portion and the second light portion being stereoscopic images of a scene.
Dependencies are inferred from the claim text.