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1. (WO2013145550) METHOD FOR MANUFACTURING PHASE-SHIFT PLATE

Pub. No.:    WO/2013/145550    International Application No.:    PCT/JP2013/001164
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Thu Feb 28 00:59:59 CET 2013
IPC: G02B 5/30
G02F 1/1337
Applicants: ARISAWA MFG. CO., LTD.
株式会社有沢製作所
Inventors: KAKUBARI, Yuichi
角張 祐一
WATABE, Kenichi
渡部 賢一
Title: METHOD FOR MANUFACTURING PHASE-SHIFT PLATE
Abstract:
The present invention provides a method for manufacturing a phase-shift plate that has an orientation pattern in which a plurality of regions is formed to have optical axes oriented in mutually different directions. The method comprises a step of providing an unoriented optical orientation layer on one side of a base material to be oriented by light; a step of preparing a phase-shift mask having an orientation pattern in which is formed a plurality of regions having a quarter-wave plate phase-shift function which correspond with said plurality of regions in said orientation pattern of said phase-shift plate; and a step of orientating said optical orientation layer by irradiating said phase-shift mask with elliptically polarized light and irradiating said optical orientation layer with the polarized light emitted from said phase-shift mask.