Liquid crystal display having reflecting region

Details Liquid crystal display having reflecting region Liquid crystal display having reflecting region

2007-11-26

2010-02-09

Nguyen, Dung (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S106000, C349S114000, C349S155000

Reexamination Certificate

active

07659953

ABSTRACT:
A liquid crystal display (LCD) includes a rear substrate and a front substrate, an LC (liquid crystal) layer placed between the rear substrate and the front substrate, and a reflecting region which reflects external light in at least a portion of a region toward the LC layer at a side of the rear substrate to illuminate the LC layer, and the reflecting region includes an array of a plurality of reflecting surfaces which are formed so that at least a portion toward the front substrate of a side of the rear substrate is not parallel to the front substrate, a first medium layer having a first index of refraction and formed to have a flat surface on the reflecting surfaces, a second medium layer having a second index of refraction that is smaller than the first medium layer, and a third medium layer having a third index of refraction that is larger than the second medium layer, and a portion of light that travels from the rear substrate at an interface between the first medium layer and the second medium layer is totally internally reflected.

REFERENCES:
patent: 6704077 (2004-03-01), Yoshida et al.
patent: 7142268 (2006-11-01), Lowe
patent: 2004/0135944 (2004-07-01), Kim
patent: 2008/0123034 (2008-05-01), Cho

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