Display apparatus using laser and method of using the same

A technology for display devices and lasers, which is applied in the direction of using projection device image reproducers, lasers, laser components, etc., and can solve problems such as reducing image quality

Inactive Publication Date: 2007-12-26
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Speckle noise adversely affects achieving a clear image on the screen, reducing image quality

Method used

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  • Display apparatus using laser and method of using the same
  • Display apparatus using laser and method of using the same
  • Display apparatus using laser and method of using the same

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Embodiment Construction

[0036] The matters defined in the description, such as detailed construction and elements, are provided to facilitate a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0037] FIG. 1 is a schematic diagram of a display device according to a first exemplary embodiment of the present invention. FIG. 2 is a control block diagram of a display device according to a first exemplary embodiment of the present invention. 3A to 3D illustrate a display area and a speckle removal mirror according to a first exemplary embodiment of the present invention.

[0038] According to a first exemplary embodiment of the present invention as shown in FIGS. 1 and 2...

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Abstract

A display apparatus which uses a laser to realize a clear image by reducing speckle noise is provided. The display apparatus comprises a laser light source which emits light a scanning mirror which scans light emitted by the laser light source, a speckle removing mirror which periodically reciprocates within a predetermined rotating angle, and projects the light scanned by the scanning mirror, to a screen, and an image processor which processes image data to shift an image by frame corresponding to the rotation of the speckle removing mirror.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2006-0055402 filed with the Korean Intellectual Property Office on Jun. 20, 2006, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to a display device using a laser. More particularly, the present invention relates to a display device that realizes a clear image by reducing speckle noise using a laser. Background technique [0003] As the demand for high-quality display devices has increased, projectors capable of enlarging and projecting small images through projection lenses have been rapidly developed. Projectors can be classified into front image projection devices and rear image projection devices according to projection types. In addition, new projectors have been developed to project images onto a screen using highly collimated light from a laser via a laser source. [0004] When a laser is used as a light source, speck...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/10G02B27/48H04N5/74H04N9/31
CPCG09G3/007G09G2340/0471G09G3/02H04N9/3129G02B27/48G02B26/105G02B26/10H01S3/00H04N5/74
Inventor 李启薰赵虔皓
Owner SAMSUNG ELECTRONICS CO LTD
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