Supercharge Your Innovation With Domain-Expert AI Agents!

Colored composition for color filters, and color filter

A technology of coloring composition and color filter, which is applied in the direction of optical filter, photosensitive material used in optomechanical equipment, optics, etc., and can solve problems such as brightness reduction, limitation, and yellowing of green filter blocks

Active Publication Date: 2013-10-23
TOYO INK SC HOLD CO LTD +1
View PDF36 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these green coloring compositions for color filters have a problem of insufficient brightness
[0022] In addition, when used as a green coloring composition, since the absorption of the coloring material (coloring material) in the ultraviolet region is large, the materials that can be used as curing materials are limited.
Moreover, if in order to improve the photocurability, the components such as photopolymerization initiator and photopolymerizable monomer are added, there will be yellowing during the baking step above 230°C, and it will become the color of the green filter block. The problem of the main factor of brightness reduction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Colored composition for color filters, and color filter
  • Colored composition for color filters, and color filter
  • Colored composition for color filters, and color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0491] Embodiments I to VII will be described below based on examples, but the present invention is not limited thereto.

[0492] Moreover, "part" means "weight part", and "%" means "weight%". In addition, "PGMAC" refers to propylene glycol monomethyl ether acetate.

[0493] First, Embodiment I will be described using the following examples.

[0494] The number average molecular weight and weight average molecular weight in the following examples are the gel permeation chromatography (GPC) "HLC-8120GPC" four separation columns made by TOSOH Co., Ltd., which are connected in series, and the filler is TOSOH For "TSK-GEL SUPER H5000", "H4000", "H3000" and "H2000" manufactured by Co., Ltd., the mobile phase is a polystyrene-equivalent value measured using tetrahydrofuran.

[0495] In addition, the volume-average primary particle diameter (MV) of the colorant is measured by using a transmission electron microscope (TEM) photograph to measure the minor axis diameter and the major ...

Embodiment I-1

[0544] [Example I-1] Production of (I-DB-1)

[0545] After the mixture of the following composition was stirred and mixed uniformly, it was dispersed for 4 hours using zirconia beads with a diameter of 0.5 mm using an Eiger mill ("Minimodel M-250MKII" manufactured by Eiger Japan Co., Ltd.) of a media-type wet disperser, and prepared as a pigment Composition 50%, solid content 20%, blue coloring composition (I-DB-1) was prepared.

[0546]

[0547]

[0548] Next, the obtained blue colored composition (I-DB-1) was coated on a glass substrate with a thickness of 100 mm x 100 mm and a thickness of 1.1 mm using a spin coater, and the C light source was set to y(c)=0.294 to obtain Coated substrates of the chromaticities shown in Table I-1.

[0549] Moreover, the measurement of chromaticity used the microspectrophotometer ("OSP-SP100" by Olympus Optical Co., Ltd.).

[0550] [Examples I-2 to I-7, Reference Examples I-1 to I-3] Production of (I-DB-2 to I-DB-10)

[0551] The com...

Embodiment I-8

[0558] [Embodiment 1-8] Production of (I-DG-1)

[0559] Using the blue coloring composition (I-DB-1) and yellow coloring composition (I-DY-1) prepared above, by stirring and mixing, the C light source when coating the substrate becomes x(c)=0.290, y(c)=0.600, a green pigment composition (I-DG-1) was prepared.

[0560] Production of [Examples I-9 to I-11, Reference Examples I-4 to I-6] (I-DG-2 to 7)

[0561] Use the blue coloring composition and yellow coloring composition shown in Table I-2, and change into the chromaticity described in this table, make green coloring composition (I-DG-1) with the same operation as (I-DG-1) -2 to 7).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
acid valueaaaaaaaaaa
Login to View More

Abstract

Provided is a colored composition for color filters, which comprises a coloring agent, a binder resin and an organic solvent, wherein the coloring agent comprises a phthalocyanine compound represented by formula (1) (wherein X1-X4 and Yl-Y4 independently represent a substituent; M represents Al; Z represents -OP(=O)R1R2; and m1, m2, m3, m4, n1, n2, n3 and n4 independently represent an integer of 0-4).

Description

technical field [0001] The present invention relates to a coloring composition for color filters and a color filter. Background technique [0002] A liquid crystal display device is a display device that controls the degree of polarization of light passing through a first polarizing plate and controls the amount of light passing through a second polarizing plate through a liquid crystal layer sandwiched between two polarizing plates. Such devices are mainly those using twisted nematic (TN) liquid crystals. A liquid crystal display device can display colors by placing a color filter between two polarizing plates. Since such liquid crystal display devices have been used in televisions and personal computer monitors in recent years, the demand for high contrast, high brightness, and high color reproducibility of color filters has been increasing. [0003] There are also other typical forms of liquid crystal display devices. For example, a pair of electrodes are provided on a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20C09B67/20G02B5/22G02F1/1335G03F7/004C09B47/067
CPCG03F7/0007G03F7/033C09B47/22C09B47/12C09B47/10G03F7/027G02B5/223C09B69/007G03F7/105C09B47/18C09B47/20C09B67/0064G03F7/0388
Inventor 北村健一伊藤理人藤田贵子饭田裕介宫川章乃山田侑纪吉泽俊启宫泽由昌
Owner TOYO INK SC HOLD CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com