US2008073625A1PendingUtilityA1

Colored Composition for Color Filter and Display Using Color Filters Formed of the Colored Composition

Assignee: HITACHI DISPLAYS LTDPriority: Aug 29, 2003Filed: Nov 30, 2007Published: Mar 27, 2008
Est. expiryAug 29, 2023(expired)· nominal 20-yr term from priority
G02F 1/1335H10K 85/311H10K 59/38C09B 5/48C09B 47/16C09B 47/26G02F 1/133514C09B 19/02C09B 48/00C09B 7/02C09B 1/005C09B 68/443C09K 2323/03C09B 57/04C09B 57/004C09K 2323/00C09K 2323/031C09B 5/62
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Claims

Abstract

An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the present invention, there is used a colored composition for color filter comprising at least one coloring agent, a base polymer and at least one solvent, said base polymer containing a polyamicacid whose light transmittance decreases by 2% or less in the visible region (wavelength: 400 nm to 800 nm).

Claims

exact text as granted — not AI-modified
1 . A colored composition for color filter comprising a base polymer containing a polyamicacid whose light transmittance decreases by 2% or less in the visible region (wavelength: 400 nm to 800 nm), at least one coloring agent and at least one solvent.  
     
     
         2 - 6 . (canceled)

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