Color composition for color filter and color filter
A coloring composition and color filter technology, applied in the field of color filters, can solve the problems of reduced brightness, poor heat resistance, and inability to fully obtain high brightness, and achieve the effect of low power consumption
Inactive Publication Date: 2013-07-17
TOYO INK SC HOLD CO LTD +1
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
[0011] However, when a pixel containing the above-mentioned dye was produced and the chromaticity was measured, after high-temperature drying at 230°C at the time of pixel formation, the luminance decreased compared to before high-temperature drying.
Dye-based colorants have the problem of being unable to obtain sufficient high brightness due to heat treatment because they are inferior in heat resistance compared to conventionally used pigments.
This suggests that if the decrease in brightness due to heat treatment can be suppressed, there is room for further improvement in brightness
Method used
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Experimental program
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Effect test
Embodiment 1～51、 comparative example 1～20
[0444] Various materials were mixed by the formulation described in Tables 3-6, and the coloring composition was produced. In addition, in Tables 3-6, the formulation shown by mass parts is shown.
[0445]
[0446]
[0447]
[0448]
[0449]
[0450] The red coloring composition was coated on a glass substrate so as to have a film thickness of x=0.657 and y=0.320 under a C light source, and exposed to ultraviolet light through a mask having a predetermined pattern. Then, an alkali developing solution is sprayed by spraying, and an uncured part is removed, and a desired pattern is formed. About the obtained coating film, the brightness|luminance before and after heat-processing at 230 degreeC for 60 minutes in an oven was measured with the microspectrophotometer ("OSP-SP200" by Olympus Optical Co., Ltd.).
[0451] The green coloring composition was coated on a glass substrate so as to have a film thickness of x=0.290 and y=0.600 under the C light source, and expo...
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The invention provides a color composition for a color filter and a color filer which is formed by using the color composition, wherein the color composition does not have reduced brightness easily due to heat treatment at a temperature above 180 DEG C and especially at 230 DEG C. The color composition for the color filter is characterized by containing a colorant [A], a resin [B] and a monomer [C], wherein the colorant [A] contains dyes; the monomer [C] contains a monomer [C1] containing an isocyanurate frame represented in a general formula (1). General formula (1), wherein R1, R2 and R3 respectively and independently represent groups represented in general formulas (2) to (6), and at least one is any one of the groups represented in the general formulas (2) to (4). General formula (2). General formula (3). General formula (4). General formula (5). General formula (6). In general formulas (2) to (6), R4, R5 and R6 respectively and indenpendenly represents any one of H and CH3, wherein n is an integer from 0 to 10; m respectively and independently is an integer from 0 to 20; and l is an integer from 1 to 5.
Description
technical field [0001] This invention relates to the coloring composition for color filters used for manufacture of the color filter contained in a color liquid crystal display device, a color imaging element, etc., and the color filter provided with the filter segment and / or black matrix formed using it. Background technique [0002] A liquid crystal display device has a structure in which a liquid crystal substance and a plurality of pixels are sandwiched between two polarizing plates. In a liquid crystal display device, a voltage is applied to each pixel to change the alignment state of the liquid crystal material and change the degree of polarization of the light passing through the first polarizer, thereby controlling the transmitted light through the second polarizer to display image. [0003] The liquid crystal display device can perform color display by disposing a color filter between these two polarizing plates, and is used in television receivers, personal comput...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G03F7/004G03F7/027G02B5/20
CPCG02B5/20G03F7/004G03F7/0045G03F7/20G03F7/2002
Inventor 岩崎真理高木悠大富田绫子
Owner TOYO INK SC HOLD CO LTD