Device for reducing deterioration of image quality in display using laser
AssigneeLG Electronics Inc.
InventorsChang-Hyeon Ji, Young-Joo Yee, Jeong-Hoon Choi, Seong-Hyok Kim
Life of this patent
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Abstract
Disclosed is a device for reducing deterioration of image quality which can get rid of speckle by equalizing a laser from a light source on a screen by vibrating a reflective mirror installed between the light source and the screen at a predetermined amplitude. The device for reducing deterioration of image quality in a display system using a laser as a light source includes: a reflective mirror formed at the path of light positioned between the light source and a screen, for reflecting the laser; and a driving unit connected to the reflective mirror and vibrating the reflective mirror at a predetermined amplitude by using an electromagnetic force.
Claims12
A device for reducing deterioration of image quality in a display system using a laser as a light source, comprising:
- a reflective mirror formed on a light path positioned between the light source and a screen for reflecting the laser;
- and
- a driving unit connected to the reflective mirror and vibrating the reflective mirror at a predetermined amplitude by using an electromagnetic force,
- wherein the driving unit comprises:
- a cylindrical housing having a hollow;
- a driving shaft inserted into the center of the hollow of the housing;
- a permanent magnet formed to encompass the driving shaft;
- springs for connecting and coupling an inner circumferential surface of the housing to the driving shaft in order to fix the driving shaft;
- a coil formed to encompass a part of an outer wall of the housing;
- and
- yokes for encompassing the outer wall.
Dependencies are inferred from the claim text.