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Projection device

A projection equipment and projection technology, used in instruments, projection devices, optics, etc., can solve problems such as high price, limited number of pixels, and inability to provide maximum resolution images.

Inactive Publication Date: 2007-07-11
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Beneficially, the number of pixels is less limited than that of LCD or DMD modes
[0006] Among various projection devices, LCD mode and DMD mode projection devices cannot provide images with a maximum resolution of 720p in terms of installed panels
The benefit of projection equipment with LCoS panels mounted on it is that it can provide higher resolution than LCD mode and DMD mode projection equipment, but the disadvantage is that the price of such projection equipment is high

Method used

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Embodiment Construction

[0117] The present invention will now be described in detail with reference to the accompanying drawings and in conjunction with a preferred embodiment.

[0118] FIG. 1 is a block diagram of a projection apparatus capable of increasing resolution according to the present invention.

[0119] Referring to FIG. 1 , the high resolution projection apparatus of the present invention includes an image forming unit 100 , an optical path changing unit 110 , an image shifting unit 120 , a projection lens unit 130 and a display driving unit 140 .

[0120]

[0121] The image forming unit 100 includes a digital display panel that supports a smaller number of pixels than the resolution of a frame to be displayed. Preferably, the digital display panel according to the present invention supports only 1 / n (n is a natural number) pixels of the overall resolution constituting one frame.

[0122] Hereinafter, one frame to be displayed is referred to as an overall image. An image formed by a d...

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Abstract

The present invention relates to a projection device, and more particularly, to a projection device in which an image of a resolution higher than a resolution of a display panel included therein can be displayed. According to the present invention, the projection device is a projection device that projects an image signal onto a screen, the projecting device including image forming means that forms an image by using an inputted image signal, and image shift means that transmits the image intact, or shifts the image and projects the shifted image onto the screen. Therefore, the projection device according to the present invention can provide an image of a high resolution by using a digital display panel that supports a low resolution.

Description

technical field [0001] The present invention relates to projection devices, and more particularly to a projection device capable of displaying images with a higher resolution than that of a display panel included therein. Background technique [0002] Generally speaking, a projection device is a device consisting of a light source and an optical system adapted to magnify an image and project the magnified image on a screen. In the past, a projection apparatus in which a cathode ray tube (CRT) was installed was generally used. Recently, various projectors using a Liquid Crystal Display (LCD) panel, a Digital Micromirror Device (DMD) panel, or a Liquid Crystal on Silicon (LCoS) panel, etc., have been commercialized. [0003] In a projection device on which an LCD panel is mounted, in the case of a three-panel type, three liquid crystal panels pass three color spectrums of red, blue, and green through the pixels of the liquid crystal, and make the lens correct the light that h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/00
CPCG03B21/00G03B21/005G03B21/14
Inventor 徐银晟金荣云郑尚植
Owner LG ELECTRONICS INC
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