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Title:
POLARIZING PLATE, ITS MACHINING METHOD, AND LIQUID CRYSTAL DISPLAY DEVICE AND ITS MACHINING METHOD
Document Type and Number:
Japanese Patent JP2005148168
Kind Code:
A
Abstract:

To obtain a liquid crystal display device capable of performing excellent display even when a foreign matter exists on a polarizing plate, and the polarizing plate.

The machining method for the polarizing plate is a method for machining the polarizing plate 100 having a polarizing layer 111 inside, and includes a small-diameter hole part forming process for forming a hole part 130 on the polarizing plate 100 by laser beam machining on a faulty display area where the foreign matter 200 exists, a large-diameter hole part forming process for forming a large-diameter hole part 140 having a larger diameter than the hole part 130 formed in the small-diameter hole part forming process by removing a part which does not reach the layer 111 by the laser beam machining, and a light shielding forming process for embedding a light shielding member 150 in the hole parts formed in the respective processes.


Inventors:
TASHIRO MASAYUKI
OGA MASAAKI
NAGATA KATSUNORI
MISHIMA KOSUKE
Application Number:
JP2003381849A
Publication Date:
June 09, 2005
Filing Date:
November 11, 2003
Export Citation:
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Assignee:
SHARP KK
International Classes:
G02B5/30; G02F1/1335; (IPC1-7): G02B5/30; G02F1/1335
Attorney, Agent or Firm:
Koji Ishida