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Screen and method for manufacturing the same

A manufacturing method and technology of display screen, applied in the field of display screen, can solve problems such as unsatisfactory improvement of contrast ratio and delay, and achieve the effect of improving contrast ratio and improving visual characteristics

Inactive Publication Date: 2006-02-22
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this case, the ambient light from the front of the display screen is not absorbed and the improvement of the contrast in bright light is not satisfactory, and further a problem of time delay occurs and requires a troublesome process for forming protrusions and in opaque layer on the sidewall of each protrusion

Method used

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  • Screen and method for manufacturing the same
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  • Screen and method for manufacturing the same

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Embodiment Construction

[0064] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0065] figure 1 A display screen according to the first embodiment of the present invention is shown, wherein a substrate 1 is formed on a substrate 1 to reflect light in a specific wavelength region, such as RGB three primary color wavelength regions, and to absorb light in a wavelength region other than the specific wavelength region. Light selective reflection layer 2, metal thin film 3 and dielectric film 4D i (i=1, 2, ...) and light-absorbing film 4M with transmittance j (j=1, 2, . . . ) optical multilayer film 4, and a diffusion layer 5 is further formed on the selective reflection layer to scatter the light reflected by the selective reflection layer 2.

[0066] The substrate 1 supports the display screen, and various materials can be used for the substrate. When imparting flexibility to the display screen, for example, a plastic film having a thickness on th...

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Abstract

A screen for displaying an image by projection light includes: a selectively reflective layer having reflection properties with respect to light in a specific wavelength region corresponding to the projection light, and having absorption properties with respect to light in a wavelength region other than the specific wavelength region. And the selectively reflective layer includes an optical multilayer film having a dielectric film and a light-absorbing thin film having transmission properties, and a reflective layer for reflecting light which has passed through the optical multilayer film.

Description

[0001] Cross References to Related Applications [0002] The present invention includes subject matter related to Japanese Patent Applications JP2004-078130, JP2004-233261, and JP2005-073467 filed with the Japan Patent Office on March 18, 2004, August 10, 2004, and March 15, 2005, respectively, in Its entire contents are hereby incorporated by reference. technical field [0003] The present invention relates to a display screen for displaying images by projecting light, more particularly to a reflective display screen and a manufacturing method thereof. Background technique [0004] In recent years, data projectors have been widely used as devices for displaying materials in conferences and the like, and home video projectors and movie film projectors are also becoming popular. In these projectors, light emitted from a light source is spatially modulated by a light valve to form a light image, and the light image is projected on a display screen for projection through optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/56
Inventor 下田和人柿沼正康渡辺隆梶谷俊一
Owner SONY CORP
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