Reflector and application thereof

Details Reflector and application thereof Reflector and application thereof

2007-05-29

2007-05-29

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Light interference

Produced by coating or lamina

C359S585000

Reexamination Certificate

active

10545437

ABSTRACT:
An object of the invention is to provide a reflector using a metal thin film layer, particularly a reflector having higher reflectance than in the prior art. Specifically, studies have been made to provide a reflector which exhibits a superior reflection-increasing effect. As a result, it has been found that if the thickness of a low refractive index thin film layer (B) which comes in contact with a metal thin film layer (A) is controlled so that it is within a range of 0.7 λ/8nL–1.3 λ/8nL, a reflector having an arrangement of metal layer (A)/low refractive index thin film layer (B)/high refractive index thin film layer (C) exhibits reflectance which is extremely superior than in the prior art over a wide wavelength range. More specifically, it exhibits higher reflectance than a pure silver single film does, and a reflector superior in durability can be obtained. The lamp reflector, reflector under the light-guiding plate of the invention uses the above-mentioned reflector; therefore, if it is applied to each display device, high brilliance and vivid image can be realized. Further, since the liquid crystal display device of the invention uses the above-mentioned reflector, a clear vivid image can be realized.

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Korean Patent Office, Notices of Request for Submission of Opinions, Patent Application No. 10-2005-7012903, Office Action dated Oct. 25, 2006, Korean Language, 2 pages, with English Language Translation, 2 pages.

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