Title:
PATTERNED RETARDATION FILM, OPTICAL FILM, AND IMAGE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2015184436
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a patterned retardation film produced by continuous treatment on a long transparent film material supplied by use of rolls, which is configured to effectively avoid increase in crosstalk in an image display device caused by uneven elongation and contract of the transparent film material and to efficiently dispose the pattern retardation film.SOLUTION: A patterned retardation film 1 produced by successively treating a long transparent film includes a retardation layer in which a first region to impart a retardation to transmitted light and a second region to impart a retardation different from that of the first region to transmitted light are successively disposed. When the film is mounted on a surface plate 11, a rising amount of the film from the surface of the surface plate 11 is 5 mm or less.
Inventors:
HASHIMOTO YUSUKE
SHINKAI AI
HASHIMOTO HIROMASA
SHINKAI AI
HASHIMOTO HIROMASA
Application Number:
JP2014060102A
Publication Date:
October 22, 2015
Filing Date:
March 24, 2014
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G02B5/30; G02F1/13363
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Hayashi Ichiyoshi
Hisao Kamada
Tetsuo Shiba
Hayashi Ichiyoshi
Hisao Kamada