UV-SHIELDING MATERIAL AND OPTICAL TREATMENT METHOD FOR SUBSTRATE OF DISPLAY DEVICE

Japanese Patent JP2015191001

A

PROBLEM TO BE SOLVED: To provide such a material that easily gives a light-shielding film in a portion where UV irradiation is undesirable upon subjecting an alignment layer or the like to an optical treatment, and that can be easily removed as required.SOLUTION: A UV-shielding material is provided, which comprises an aqueous solution containing a water-soluble or water-dispersible resin and a water-soluble dye, and which gives a light-shielding degree of 1 or more to UV rays at a wavelength in the range from 240 to 370 nm when a light-shielding film having a thickness of 5 μm or less is formed from the aqueous solution. An optical treatment method is provided for a photo-alignment treatment with UV rays on a substrate constituting a display device or an electronic apparatus; and in the method, the above water-soluble light-shielding material is applied and dried to selectively form a light-shielding film on a transistor, a wiring line, and/or a thin film already mounted on the substrate and to be protected against exposure to UV rays, and after carrying out the optical treatment using UV rays, the light-shielding film is removed from the substrate.

IINUMA KAZUYUKI
FUKUI KATSUYUKI
AKITA SEIICHI
YAMATO HIDEYUKI

JP2014065831A

November 02, 2015

March 27, 2014

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IINUMA GAUGE SEISAKUSHO KK

G09F9/00; C09D5/02; C09D5/32; C09D7/12; C09D201/00; G02F1/1337

JP2007335560A	2007-12-27
JP2004217733A	2004-08-05
JP2009233875A	2009-10-15
JP2012181447A	2012-09-20
JP2013122536A	2013-06-20
JP2008070508A	2008-03-27
JP2005023111A	2005-01-27
JP2009196298A	2009-09-03

US20150070636A1	2015-03-12
US20130146867A1	2013-06-13

Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Atsushi Ebiya

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