Arrangements in a transflective liquid crystal display

Details Arrangements in a transflective liquid crystal display Arrangements in a transflective liquid crystal display

2004-03-12

2008-03-04

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S118000, C349S119000, C349S120000, C349S121000, C349S114000

Reexamination Certificate

active

07339643

ABSTRACT:
This invention relates to a transflective liquid crystal display device (11, 21), comprising a plurality of pixels, each comprising a liquid crystal layer (12, 22), being sandwiched between front and back electrode means (13, 23; 14, 24) as well as front and back polariser means (17a, 27a; 17b, 27b). Said display device is characterised in that an optical λ/4 layer (16a, 26a) at least partly is arranged between said front polariser (17a, 27a) and said liquid crystal layer (12, 22), and said liquid crystal layer (12, 22) is a liquid crystal layer having a twist angle essentially within a range ±80-100°, such as 90°. The invention further relates to methods for generating a quarterwave foil for use in a liquid crystal display as defined above.

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