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Image display apparatus and control method therefor

A technology for image display equipment and a control method, which is applied in the directions of image communication, image duplicator, and image reproducer using a projection device, etc., can solve problems such as image distortion, and achieve the effect of preventing image distortion

Inactive Publication Date: 2007-07-25
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in an image display device having a plurality of light sources, if the efficiency of each light source is different, image distortion may be caused

Method used

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  • Image display apparatus and control method therefor
  • Image display apparatus and control method therefor
  • Image display apparatus and control method therefor

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Embodiment Construction

[0029] Now, exemplary embodiments of the present invention will be described in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals will refer to like elements throughout. Hereinafter, the embodiments are described in order to explain the present invention by referring to the figures.

[0030] As shown in FIG. 1, an image display device according to a first embodiment of the present invention includes a display part 5, a plurality of light sources 10, a lighting part 20, a projection part 25, a DMD board 30, a board driving part 35, a light source Sensor 40 and regulation control part 50.

[0031] The light sources 10 output lights having different colors. For example, the light source 10 includes a red light emitting diode (LED) 11 as a red light source, a green LED 12 as a green light source, and a blue LED 13 as a blue light source. Alternatively, light source 10 may include other light sources such as lasers. In additi...

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PUM

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Abstract

An image display apparatus comprises a plurality of light sources, each of which outputs light having a different color than the other light sources, and a digital micro mirror device (DMD) panel having a plurality of mirror elements. The plurality of mirror elements reflect light output from the light sources in one of a first direction, for displaying an image, and a second direction different from the first direction. The apparatus further includes a detecting part which detects the quantity of light reflected in the second direction by at least one mirror element of the DMD panel, and an adjusting control part which determines the quantity of light output from the respective light sources based on the detection by the detecting part, and which adjusts light output of the light sources based on the determined quantity of light output from the light sources.

Description

[0001] This application claims priority from Korean Patent Application No. 2006-0005578 filed with the Korean Intellectual Property Office on Jan. 18, 2006, the disclosure of which is hereby incorporated by reference. technical field [0002] Apparatus and methods according to the present invention relate to an image display apparatus that adjusts light outputs of respective light sources so as to prevent image distortion, and a control method of the image display apparatus. Background technique [0003] Projectors are widely used to present images, and various projectors are being developed in order to improve portability thereof. [0004] As one of display devices used in projectors, a digital micromirror device (DMD) panel is widely used. The DMD board controls the tilt angles of multiple micromirror elements to reflect light in multiple directions. [0005] An image display device using a DMD panel focuses white light output from a light source onto a point of a color w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/74H04N9/31
CPCG09G3/346G09G3/2003G03B21/00G09G3/2014G09G2320/062G09G2320/029G02B26/0833G09G2320/0626G03B21/14G09G3/001G03B21/008G03B33/12H04N5/74
Inventor 郑廷暋卢正镐宗野浩一车荣德
Owner SAMSUNG ELECTRONICS CO LTD
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