This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0010] In addition, if the amount of pigments such as pigments is increased in order to improve color reproduction characteristics and light-shielding properties, it will hinder the curing of the photosensitive coloring composition.
Therefore, countermeasures such as increasing the amount of photopolymerization initiator or adding a sensitizer are required, but the photopolymerization initiator is a very expensive material, so how to reduce the amount of its usage and reduce the cost becomes a problem
[0011] In addition, the photopolymerization initiator is different for each color of the photosensitive coloring composition, which is disadvantageous in terms of shipping or cost
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0096] (Preparation of Coloring Composition)
[0097] The coloring composition can be prepared by finely grinding the pigment and, if necessary, the above-mentioned pigment dispersant using various dispersing means such as a three-roll mill, a two-roll mill, a sand mill, a kneader, and an ultrafine pulverizer. After dispersing in a monomer having an ethylenically unsaturated double bond, and if necessary, a transparent resin and an organic solvent, a photopolymerization initiator is added. Moreover, you may manufacture the coloring composition for color filters containing two or more types of pigments after finely dispersing each pigment in monomer etc. which have an ethylenically unsaturated double bond, respectively, and mixing.
[0098] The coloring composition preferably removes coarse particles of 5 μm or larger, preferably 1 μm or larger, more preferably 0.5 μm or larger coarse particles and mixed dust by means of centrifugation, sintered filter, membrane filter, and the...
Embodiment 1～22、 comparative example 1-4
[0149] After the mixture of the formulations shown in the following tables 4, 5, and 6 containing the previously prepared pigment dispersions R-1, G-1, B-1, and BM-1 shown in the above table 1 was uniformly stirred and mixed, the Filter through a 1 μm filter to obtain coloring compositions of various colors.
[0150] The formulations of the coloring compositions of each color are shown in Table 2 below. In addition, the following Table 3 shows the molar absorptivity (ε 308 ) and molar absorptivity at 365nm (ε 365 ).
[0156] ("ARONIX M-402" manufactured by Toagosei Co., Ltd.)
[0157] Monomer 2: Multifunctional acrylate containing carboxyl groups
[0158] ("TO-1382" manufactured by Toagosei ...
Embodiment 8
[0201] What embodiment 8 used is the molar absorptivity (ε) under 308nm 308 ) is less than the molar absorptivity at 365nm (ε 365 ) of the photopolymerization initiator 7, but there are parts where the linearity is poor locally, and the film reduction rate is also slightly deteriorated, but it is to the extent that it does not affect the use.
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
Property
Measurement
Unit
wavelength
aaaaa
aaaaa
visible light transmittance
aaaaa
aaaaa
double bond equivalent
aaaaa
aaaaa
Login to View More
Abstract
Disclosed is a method for producing a color filter comprising the steps of: forming a coloredcoating film on a substrate by using a colored composition comprising a pigment, a monomer having an ethylenically unsaturated double bond and a photopolymerization initiator; irradiating a filter segment or an area to be served as a black matrix on the coloredcoating film with an excimerlaser having a wavelength of 308 nm (XeCL) so that the integrated exposure amount becomes 1 to 150 mJ / cm, thereby curing the filter segment or the part; removing an uncured area on the colored coating film to form the filter segment or the black matrix; and repeating the aforementioned steps several times to form a filter segment having at least two colors and / or a black matrix. Also disclosed is a colored composition comprising a pigment, a monomer having an ethylenically unsaturated double bond and a photopolymerization initiator, which is intended to be used for the production of the color filter.
Description
technical field [0001] This invention relates to the coloring composition used for manufacture of the color filter used for a color liquid crystaldisplay device, a color pickup element, etc., the color filter using this coloring composition, and its manufacturing method. Background technique [0002] The filter segment or black matrix constituting the color filter used in a color liquid crystaldisplay device or a color pickup tube element is formed by coating a photosensitive material on a glass substrate, etc., and drying to remove the remaining solvent. , through a photomask used to form pixels, irradiate active energy rays by proximity exposure (ultravioletlight sourceexposure), etc. to cure (negative type), or increase alkali solubility (positive type), remove and dissolve with an alkaline solution, etc. part. The above operation was repeated for each color, thereby producing a color filter. [0003] In recent years, color liquid crystal display devices have formed...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More