G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/1347 (2006.01) G02F 1/13363 (2006.01) G02F 1/139 (2006.01)
Patent
CA 2239533
A normally white twisted nematic (TN) liquid crystal display (LCD) outputs improved viewing characteristics which are defined by high contrast ratios and/or reduced inversion. The display includes a pair of negative tilted retarders located on one side of the liquid crystal layer, each of the tilted retarders including a tilt or incline angle which varies throughout the thickness of the layer. Additionally, one or two negative uniaxial or biaxial retarders are provided on the same side of the LC layer as the tilted retarders. As a result of the particular orientations, alignments, and retardation values described in the different embodiments herein, the display exhibits improved contrast and reduced inversion, often in the same viewing areas.
Brinkley Patrick F.
Jones Michael R.
Vanderploeg John A.
Xu Gang
Guardian Industries Corp.
Ois Optical Imaging Systems Inc.
Oyen Wiggs Green & Mutala Llp
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