US 6,674,415 B2 · Image display device

Abstract

Three lines' worth of an image are displayed on a columnar display unit 11 comprising a plurality (for example, three) of one-dimensional display devices; this image light beam is made incident on perpendicular deflection means 14, and using the perpendicular deflection means 14, this image light beam is deflected and scanned at high speed in directions perpendicular to the longitudinal direction of the columnar display unit 11 to obtain a two-dimensional image. A plurality of one-dimensional display devices is used, so that compared with conventional devices in which only a single one-dimensional display device is used, even if the rewrite speed (scanning speed) per one-dimensional display device is slow, good image quality free of flicker can be obtained. By further extending this in a configuration using a plurality of columnar display units, a single image can be divided into a plurality of images and displayed in a row on a screen. In order to prevent seams in this juxtaposed display of a plurality of images from being conspicuous, when overlapping parts are provided in the scanned range of the plurality of images, a correction image capture member 47, correction computation member 48, and correction processing member 49 can be used to correct the brightness of the overlapping parts, enabling display of a single high-resolution, large-screen image.

Claims19

Dependent claims

An image display device for displaying images on a screen, comprising:

a columnar display unit, comprising a plurality of means, arranged in parallel, which emit one-dimensional images;
a control member which applies image signals to said columnar display unit;
a perpendicular deflection means, which deflects light emitted from said columnar display unit in directions perpendicular to the column direction, and scans said screen;
an image-forming optical system which forms an image, from said perpendicular deflection means, on said screen, according to the change in the distance from said columnar display unit to said screen;
a light source, comprising a plurality of color components, and which irradiates said columnar display unit;
a color separation means which separates light emitted from said light source into each color component, for incidence on each respective columnar display subunit corresponding to each color component;
and
optical combination means which combines light, of a plurality of colors and passed through the columnar display subunit corresponding to each color component, such that there are no shifts in position of each color component, for incidence on said perpendicular deflection means;
wherein said columnar display unit modulates irradiated light, and
wherein said columnar display unit modulates irradiated light, and
wherein said plurality of means, which emits one-dimensional images, is a transmissive liquid crystal display element.

8 more elements

An image display device for displaying images on a screen, comprising:

a plurality of columnar display units, in which a plurality of means, which emit one-dimensional color images, are arranged in parallel to form one columnar display unit;
a control member which applies image signals to each of said columnar display units;
at least one perpendicular deflection means which deflects light emitted from each of said columnar display units in directions perpendicular to the column direction, and which scans said screen;
and
a plurality of image-forming optical systems which form an image, from said perpendicular deflection means, on said screen, according to the change in the distance from each of said columnar display units to said screen.

2 more elements

Dependencies are inferred from the claim text.

Image display device

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Image display device

Life of this patent

Abstract

Claims19