Semi-transmissive liquid crystal display device

Details Semi-transmissive liquid crystal display device Semi-transmissive liquid crystal display device

2005-07-05

2005-07-05

Parker, Kenneth (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S114000

Reexamination Certificate

active

06914656

ABSTRACT:
In a semi-transmissive liquid crystal display device having a reflective region5and a transmissive region therein, a one-half wavelength plate29is disposed between a lower substrate11and a polarizer21aprovided on a side of the lower substrate. This makes liquid crystal molecules in at least the transmissive region6driven by a horizontal electric field and allows the device to operate in a normally-black mode in both the reflective region5and the transmissive region6, realizing a semi-transmissive liquid crystal display device having wide viewing angle characteristics.

REFERENCES:
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patent: 6608660 (2003-08-01), Okamoto et al.
patent: 6611310 (2003-08-01), Kurahashi et al.
patent: 2001/0048496 (2001-12-01), Back
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patent: 11-167109 (1999-06-01), None
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Office Action issued by the Taiwanese Patent Office on May 20, 2004 in connection with a corresponding Taiwanese patent application citing U.S. reference 2001-048496 A1.
English translation of rejection reasons in the Office Action issued by the Taiwanese Patent Office on May 20, 2004.
Abstract and claims for U.S. reference 2001-048496 A1 provided by esp@cenet database—Worldwide.

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