Projector and operating method thereof
AssigneeLG Electronics Inc.
InventorJihwan Lim
Life of this patent
Estimating the term…
Abstract
A projector includes a light source configured to provide light, a digital micromirror device configured to form a video by selectively reflecting the light, a projection lens configured to enlarge and project the light reflected by the digital micromirror device onto a screen, and the actuator assembly disposed between the digital micromirror device and the projection lens and configured to allow the light incident on the projection lens from the digital micromirror device to travel straight or be refracted. The actuator assembly includes a first actuator including a first glass, and a second actuator including a second glass.
Claims14
A projector comprising:
- a light source configured to provide light;
- a digital micromirror device configured to form a video by selectively reflecting the light;
- a projection lens configured to enlarge and project the light reflected by the digital micromirror device onto a screen;
- and
- an actuator assembly disposed between the digital micromirror device and the projection lens and configured to allow the light incident on the projection lens from the digital micromirror device to travel straight or be refracted,
- wherein the actuator assembly comprises:
- a first actuator comprising a first glass and a first tilt driver tilting the first glass in a first direction;
- and
- a second actuator comprising a second glass and a second tilt driver tilting the second glass in a second direction,
- wherein the first glass and the second glass are spaced apart from each other by a distance such that:
- a contact between the first glass and the second glass is prevented when at least one of the first glass or the second glass is tilted;
- and
- an electromagnetic effect between the first tilt driver and the second tilt driver is prevented.
An operating method of a projector, the operating method comprising:
- generating a plurality of subframe videos from an input video;
- controlling a digital micromirror device of the projector to sequentially project frames of the plurality of subframe videos;
- and
- controlling an actuator assembly of the projector to project the plurality of subframe videos at different optical angles,
- wherein the actuator assembly comprises:
- a first actuator comprising a first glass and a first tilt driver tilting the first glass in a first direction;
- and
- a second actuator comprising a second glass and a second tilt driver tilting the second glass in a second direction perpendicular to the first direction,
- wherein the controlling of the actuator assembly comprises controlling the first glass and the second glass such that at least one of the first glass and the second glass is tilted or is not tilted when each of the plurality of subframe videos is projected, and
- wherein the first glass and the second glass are spaced apart from each other by a distance such that:
- a contact between the first glass and the second glass is prevented when at least one of the first glass or the second glass is tilted;
- and
- an electromagnetic effect between the first tilt driver and the second tilt driver is prevented.
Dependencies are inferred from the claim text.