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Patent Searching and Data


Title:
POLARIZING PLATE, ITS PRODUCTION AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH09243825
Kind Code:
A
Abstract:

To obtain a polarizing plate which is not a polarizing plate having a single polarization direction but has a polarization characteristic not possible with the conventional polarizing plates by constituting the polarizing plate by using a specific liquid crystal layer and specifying an orientation treatment direction to a direction having concentric directivity.

The liquid crystal layer 5 of the polarizing plate is composed of nematic liquid crystals based on horizontal orientation and dichromatic dyestuff 4. A material by which the liquid crystal molecules 3 are arranged parallel with the orientation treatment direction is used as the oriented film to be formed on the substrate 1. In addition, the orientation treatment direction is the direction having the concentric directivity. The major axes of the liquid crystal molecules 3 and the dichromatic dyestuff 4 are arrayed along the concentric orientation treatment direction by using the combination of such liquid crystal layer 5 with the oriented film. Then, an absorption axis direction 2 is set at the concentric direction and the transmission axis direction is set at the radial direction perpendicular to the absorption axis direction 2. The polarization characteristic point symmetrical with a central axis is thus obtd.


Inventors:
KOIKE YOSHIRO
Application Number:
JP5490296A
Publication Date:
September 19, 1997
Filing Date:
March 12, 1996
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
G02B5/30; G02F1/1335; G02F1/1337; (IPC1-7): G02B5/30; G02F1/1335; G02F1/1337
Attorney, Agent or Firm:
Shoji Kashiwaya (2 outside)