CN109642970A - Pigment composition for color filter and colour filter - Google Patents
Pigment composition for color filter and colour filter Download PDFInfo
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- CN109642970A CN109642970A CN201780051904.9A CN201780051904A CN109642970A CN 109642970 A CN109642970 A CN 109642970A CN 201780051904 A CN201780051904 A CN 201780051904A CN 109642970 A CN109642970 A CN 109642970A
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- pigment
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- color filter
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/04—Compounds of zinc
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B47/00—Porphines; Azaporphines
- C09B47/04—Phthalocyanines abbreviation: Pc
- C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
- C09B47/085—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex substituting the central metal atom
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
Abstract
A kind of new pigment composition for color filter that can make high luminance colour filter, and the colour filter containing aforementioned pigment composition for color filter are provided.Pigment composition for color filter contains viridine green, aforementioned viridine green has following dichroism: when foring film in such a way that the spectral transmission of very big transmission peak wavelength is 80%, it be 1.40 or more, half breadth is 80nm or less that the transmissivity of wavelength 555nm, which is the ratio between the transmissivity of 45% or more, wavelength 505nm and the transmissivity of wavelength 555nm (T (505nm)/T (555nm)),.Colour filter contains aforementioned pigment composition for color filter.
Description
Technical field
The present invention relates to pigment composition for color filter and colour filter.
Background technique
Colour filter used in liquid crystal display is to realize that the color of display is shown by making backlight white light transmission
Component.For colour filter green colourant therein, it is desirable that high luminance and high color reproduction.
In order to realize high luminance, selection is important for the high pigment of the transmissivity of backlight, is made using naphthol green 58
For body pigment.Due to the high luminance of pigment, backlight white light can be effectively used, therefore can be realized the energy conservation of display
Change, reduce manufacturing cost.Current display be designed with sRGB, therefore with green pixel be (x, y)=(0.300,
0.600) the high mode of luminance is designed.Currently, the LED as backlight, the cost-effectiveness of 3 color LED is small.Therefore, lead to
Cross the quasi- White LED (combination (B- of blue led and yellow fluorophor for being coated with fluorophor on blue led surface and being formed
YAG), the combination (B-RG) of blue led and red-emitting phosphors and green-emitting phosphor) becoming mainstream.It has used such
In the case where white LED backlight, compared with blue-light-emitting intensity, green emitting intensity is faint, thus the transmission of green colored layer
Rate can reduce.Therefore, it is necessary to the high luminance of green colored layer.
Wherein, it in order to realize high color reproduction, selects other than luminance height, additionally it is possible to carry out strikingly color and show
Pigment.In order to realize that strikingly color is shown, the film thickness of colour filter can be increased, but in order to sufficiently make to apply in exposure process
Film solidification, it is necessary to by film thickness monitoring in 3 μm of degree below.Prediction high color reproduction display universal from now on speculates can be with
DCI-P3 is designed.However, if film thickness can substantially exceed 3 μm, therefore pigment Green 7 is selected to make using pigment green 36,58
For body pigment.Green picture is formed using the green photonasty resin composition containing pigment Green 7, pigment yellow 185 for example, proposing
Element realizes high color reproduction with 2.2 μm of films below.But pigment Green 7 transmissivity compared with pigment green 36,58 is low.Cause
This luminance that there is obtained display reduces such problems.
About luminance, although can compensate by increasing backlight light quantity, the new problem of power consumption increase can be generated.Cause
This needs to take into account luminance and colorrendering quality.As new high color reproduction pigment, there is naphthol green 59, is making same film thickness
It is compared in the case where colour filter, compared with using pigment Green 7, having used naphthol green 59, then luminance is higher (referring for example to special
Sharp document 1.).
It is recognized by above situation, in the colour filter of daylight display preferably using naphthol green 58, high color reproduction
In the colour filter of display preferably using naphthol green 59.
Wherein, the colour filter of daylight display and the big difference of the colour filter of high color reproduction display are
Design the coloration of green pixel and the type of backlight.
In the colour filter of current daylight display, coloration is sRGB (x, y)=(0.300,0.600), backlight
Mainstream is B-YAG.But B-YAG is different according to the difference of manufacturing company, thus using illuminant-C with (x, y)=(0.275,
0.570) evaluation of colour filter is carried out (referring for example to patent document 2.).
Wherein, be predicted the colour filter as high color reproduction display be coloration be DCI-P3, backlight B-RG.
But, B-RG is also different according to the difference of manufacturing company, therefore uses illuminant-C, with (x, y)=(0.250,0.615) progress
The evaluation of colour filter is (referring for example to patent document 3.).
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2016-057635 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2014-085562 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2011-117986 bulletin
Summary of the invention
Problems to be solved by the invention
As described above, it is understood that in the colour filter of daylight display preferably using naphthol green 58.However, in order to compensate for
The characteristic of the B-YAG of the backlight faint as green emitting intensity, it is desirable to the further high luminance of viridine green.
Therefore, present invention has been made in view of the above circumstances, provides the new colour filter that can make high luminance colour filter
Device color compositions and colour filter containing aforementioned pigment composition for color filter.
Means for solving the problems
In order to solve the above problems, the inventors of the present invention have made intensive studies, as a result, it has been found that, by using with specific point
The pigment composition for color filter of light characteristic is capable of forming the previous high colour filter of luminance ratio, so as to complete the present invention.
That is, the present invention includes mode below.
The pigment composition for color filter that 1st mode of the invention is related to contains viridine green, which has such as
Under dichroism: by the spectral transmission of very big transmission peak wavelength be 80% in a manner of form film when, wavelength 555nm's
Transmissivity is 45% or more, the ratio between transmissivity of the transmissivity of wavelength 505nm and wavelength 555nm (T (505nm)/T (555nm))
It is 1.40 or more, half breadth is 80nm or less.
Aforementioned viridine green can be bromide chloride ZnPc.
Aforementioned viridine green can in 1 molecule containing average 13 or more 15 bromines below, be averaged 1 or more 3
The bromination chlorination ZnPc of a chlorine below.
The pigment composition for color filter that above-mentioned 1st mode is related to can further contain yellow uitramarine.
The colour filter that 2nd mode of the invention is related to contains the pigment composition for color filter that above-mentioned 1st mode is related to.
The effect of invention
According to the pigment composition for color filter of aforesaid way, the colour filter of high luminance can be made.
Detailed description of the invention
Figure 1A is the spectral transmission spectrum (wave for showing the evaluation composition 1~7,9~12 in embodiment 1 and comparative example 1
Long 480~580nm) figure.
Figure 1B is the spectral transmission spectrum (wave for showing the evaluation composition 1~7,9~12 in embodiment 1 and comparative example 1
Long 440~480nm) figure.
Fig. 1 C is the spectral transmission spectrum for showing the evaluation composition 1~7,9,10,12 in embodiment 1 and comparative example 1
The figure of (580~620nm of wavelength).
Specific embodiment
" pigment composition for color filter "
In one embodiment, the present invention provides a kind of pigment composition for color filter, the pigment composition for color filter
Containing viridine green, the viridine green by the spectral transmission of very big transmission peak wavelength be 80% in a manner of form film when,
With dichroism (a)~(c) below.
(a) transmissivity of wavelength 555nm is 45% or more,
(b) the ratio between the transmissivity of wavelength 505nm and the transmissivity of wavelength 555nm (T (505nm)/T (555nm)) are 1.40
More than,
(c) half breadth is 80nm or less.
Pigment composition for color filter according to the present embodiment can provide the height that can compensate for the characteristic of LED-YAG
Luminance colour filter, the LED-YAG are the few backlights of green light quantity.
Spectral transmission in this specification can be obtained by measurement spectral transmission spectrum.
" spectral transmission spectrum " is based on (measuring method-the reflection and transmission of color of Japanese Industrial Standards JIS Z 8722
Object color (color measuring method-reflection and び penetrate object color)) the first spectrophotometer acquire.Specifically
For the resin coating containing pigment in the upper film such as glass substrate at aforementioned regulation dry film thickness, scanning irradiation provision wavelengths
The light in region describes each transmittance values at each wavelength.
<constituent material>
[viridine green]
Viridine green contained by the pigment composition for color filter of present embodiment is saturating with the light splitting of very big transmission peak wavelength
The mode that rate is 80% is penetrated when foring film, there is dichroism (a)~(c) below.
(a) transmissivity of wavelength 555nm is 45% or more,
(b) the ratio between the transmissivity of wavelength 505nm and the transmissivity of wavelength 555nm (T (505nm)/T (555nm)) are 1.40
More than,
(c) half breadth is 80nm or less.
In green color filter, the transmissivity improved in 510nm or more 560nm or less range is important on ensuring brightness
's.Wherein, in the case where being mixed colours with yellow uitramarine, due to having cooperated yellow uitramarine, to mobile 5nm of long wavelength side or so.
Therefore, in order to obtain bright display, the transmission peak wavelength under 505nm is improved in the state of maintaining the transmissivity at 555nm high
It is important.
On the other hand, the value of chromaticity y is greatly reduced if the transmissivity height of 460nm, and the vividness for losing green is (color
Degree), thus after preferably being mixed colours with yellow uitramarine 460nm transmissivity it is lower.For example, yellow uitramarine Y138 is more than 460nm
The pigment that short wavelength side absorbs must be designed to extremely increase Y138's if the transmissivity of the 460nm of green pigment is high
Usage amount.As a result, in order to show (x, y)=(0.275,0.570), it is necessary to make colour filter thick-film.The thick-film meeting of colour filter
Cause the reduction of luminance, it is thus not preferred.That is, it is preferred that the transmissivity of viridine green 460nm is lower.With very big transmitted wave
The mode that long spectral transmission is 80% is when foring film, and the transmissivity of the 460nm of viridine green is 3% or less from increase
It is preferred from the perspective of the value of chromaticity y.More preferably 2% hereinafter, further preferably 1% or less.
Wherein, if the transmissivity of 605nm is high, the value of coloration x increases, and loses the vividness (chroma) of green, therefore
It is preferred that the transmissivity of 605nm is lower after being mixed colours with yellow uitramarine.It is left to the mobile 5nm of long wavelength side by being mixed colours with yellow uitramarine
The right side, therefore the transmissivity of preferably viridine green 600nm is lower.The shape in such a way that the spectral transmission of very big transmission peak wavelength is 80%
When at film, the transmissivity of viridine green 600nm is preferred from the viewpoint of the value for reducing coloration x for 1% or less.More
Preferably 0.5% hereinafter, further preferably 0.3% or less.
That is, in order to for Gao Huidu and realize that excellent colorrendering quality is it is necessary to have T (505nm)/T (555nm) big
The low viridine green of transmissivity at transmitted spectrum and 460nm and 600nm.
Viridine green contained by the pigment composition for color filter of present embodiment is saturating with the light splitting of very big transmission peak wavelength
Penetrating when the mode that rate is 80% forms film has above-mentioned dichroism (a)~(c), thus as be described hereinafter shown in embodiment, energy
Access the colour filter higher than previous viridine green luminance.In addition, contained by the pigment composition for color filter of present embodiment
Viridine green when foring film in such a way that the spectral transmission of very big transmission peak wavelength is 80%, at 460nm and 600nm
Decrease in transmission.Therefore, shown in embodiment as be described hereinafter, it can obtain that there is the color reproduction more excellent than previous viridine green
The colour filter of property.
In addition, viridine green contained by the pigment composition for color filter of present embodiment is with point of very big transmission peak wavelength
The mode that light transmission is 80% is when foring film, the very big transmission peak wavelength in the film be preferably 515nm or more 530nm with
Under range.
It can be inorganic pigment, or organic pigment as the viridine green with above-mentioned dichroism.Wherein,
As viridine green, preferably organic pigment, more preferably phthalocyanine compound, there is metallic atom centered on further preferred
Phthalocyanine compound.
Wherein, in this specification, " phthalocyanine compound " is the knot being crosslinked with 4 phthalimides by nitrogen-atoms
The cyclic compound of structure." phthalocyanine compound that center has metallic atom " is 4 nitrogen with aforementioned phthalocyanine compound center
Atom is chemically combined the compound of structure made of (such as covalent bond, coordination are combined) with metallic atom.
Be not particularly limited as the metallic atom for being present in phthalocyanine compound center, it can be mentioned, for example Zn, Mg, Al, Si,
Ti, V, Mn, Fe, Co, Ni, Ge, Sn etc..Wherein, as the metallic atom for being present in phthalocyanine compound center, preferably Zn
(zinc).
With the phthalocyanine compound of metallic atom, preferably ZnPc, more preferably halogenation centered in viridine green
ZnPc, further preferably bromination chlorination ZnPc.
It is excellent from above-mentioned dichroism this point in the case that aforementioned viridine green is bromination chlorination ZnPc
It selects in 1 molecule containing average 14 or more 16 halogen atoms below, average 13 or more 15 bromines below, averagely 1
Above 3 chlorine below.
Wherein, if only improving halogenation rate, the form and aspect meeting yellowing of pigment, thus by making 1 molecule bromination zinc chloride
Bromine number in phthalocyanine is more than chlorine number, the high viridine green of brightness can be made while guaranteeing the form and aspect of green.Wherein,
In the viridine green of present embodiment, the bromine number in 1 molecule bromination zinc chloride phthalocyanine is preferably on average 7 times of chlorine number or more, more
7 times or more 9 times are preferably on average hereinafter, 9 times or less of further preferred 7.8 times of average out to or more.
Wherein, method shown in aftermentioned embodiment can be used in the quantity of halogen atom in the above-mentioned bromination chlorination ZnPc of 1 molecule
(x-ray fluorescence analysis) measures.
(manufacturing method of viridine green)
Metal halide phthalocyanine in viridine green can for example pass through chlorosulfonic acid method, halogenation phthalonitrile method, fusion method
It is manufactured etc. various well known manufacturing methods.
As chlorosulfonic acid method, for example, can enumerate makes metal phthalocyanine be dissolved in the oxysulfides series solvent such as chlorosulfonic acid, wherein
Chlorine, method that bromine carries out halogenation etc. is added.Reaction at this time at 20 DEG C or more 120 DEG C of temperature below and 3 hours with
It is carried out in range below upper 20 hour.
As halogenation phthalonitrile method, for example, appropriate part or all of hydrogen atom quilt for using aromatic rings can be enumerated
Phthalic acid, phthalonitrile and the zinc metal or zinc metal salt that the halogen atoms such as bromine, chlorine replace are closed as starting material
At the method for corresponding metal halide phthalocyanine.In this case, it can according to need using catalyst such as ammonium molybdates.At this time anti-
It should be carried out at 100 DEG C or more 300 DEG C of temperature below and in 35 hours 7 hours or more or less ranges.
It as fusion method, such as can enumerate in 10 DEG C or more 170 DEG C or less Zuo You of mixture of fusant, utilize halogen
For agent by the method etc. of metal phthalocyanine halogenation, which includes the halogenations such as aluminum halides, the titanium tetrachlorides such as aluminium chloride, aluminium bromide
The alkali halides such as titanium, sodium chloride, sodium bromide or alkaline-earth halide (hereinafter sometimes referred to " alkali (soil) metal halide
Object ".), the various halogenations such as thionyl chloride when one or more of compound as solvent.
As aforementioned aluminum halide, preferably aluminium chloride.Using in the above-mentioned fusion method of aluminum halide, relative to ZnPc, halogen
The additive amount for changing aluminium is usually 3 times moles or more, and preferably 10 times moles or more 20 times moles or less.
Aluminum halide can be used alone, if alkali (soil) metal halide is used in combination with aluminum halide, can make melting temperature
Degree further declines, and becomes advantageous in operation.As aforementioned bases (soil) metal halide, preferably sodium chloride.About addition
The amount of alkali (soil) metal halide, in the range of generating fuse salt, relative to 10 mass parts aluminum halides, alkali (soil) metal halide
Object be preferably 5 mass parts or more 15 below the mass.
In addition, as halogenating agent, such as chlorine, chlorosulfuric acid, bromine can be enumerated etc..
The temperature of halogenation is preferably 10 DEG C or more 170 DEG C hereinafter, more preferably 30 DEG C or more 140 DEG C or less.Further, it is
Quickening reaction speed, can pressurize.Reaction time is preferably 100 hours 5 hours or more hereinafter, more preferably 30 hours or more
45 hours or less.
As the manufacturing method of metal halide phthalocyanine, preferably using when aforementioned halogenation as the compound of solvent and with two kinds with
On fusion method.As reason, because in this method, by the ratio for adjusting the chloride in fuse salt, bromide and iodide
Rate, or change chlorine, bromine, the import volume of iodine, change reaction time, it can arbitrarily control specific in the halogenation ZnPc of generation
The containing ratio of the halogenation ZnPc of halogen atom composition.
Metal phthalocyanine as the suitable feedstock in present embodiment is ZnPc.The decomposition of little of raw material in reaction, from original
Expect that the yield obtained is more excellent, do not use strong acid, reacted with the device of low price, thus is obtaining halogenation ZnPc side
Face, fusion method are preferred.
Method, catalyst type, catalyst usage amount, reaction temperature, the optimization in reaction time are put by raw material, it can
It obtains halogen atom and forms the halogenation ZnPc different from existing halogenation ZnPc.
Which kind of either above-mentioned manufacturing method, if obtained mixture is put into the acid such as water or hydrochloric acid after the completion of reaction
In property aqueous solution, then the metal halide phthalocyanine generated precipitates.As metal halide phthalocyanine, it can directly be used, but
It is preferred that being filtered later, or cleaned with water, sodium bisulfate water, sodium bicarbonate water or sodium hydroxide water, as needed
Acetone, toluene, methanol, ethyl alcohol, the organic solvents cleaning such as dimethylformamide are carried out, the post-processing such as is dried, then makes again
With.
Metal halide phthalocyanine in micronizer, ball mill, vibrating mill, vibrator etc. by crushing as needed
In machine dry type grind, followed by solvent salt milling, solvent boiling process etc. carry out pigmentation, thus obtain with before pigmentation
Compared to dispersibility, tinting strength, tinting power is excellent and issues the pigment of the high green of brightness.
The pigmentation method of metal halide phthalocyanine is not particularly limited, such as can halogenated metal phthalocyanine before making pigmentation
Cyanines carry out pigmentation while being scattered in decentralized medium.Wherein, the pigmentation method as metal halide phthalocyanine, and is largely having
The solvent processing for carrying out heating stirring to metal halide phthalocyanine in solvent is compared, and can be easy to inhibit crystal growth and can
In terms of the pigment particles for obtaining large specific surface area, it is preferred to use lyonium salt milled processed.
The lyonium salt grinding mean, will it is freshly synthesized after or later be ground as the halogen without pigmentation
The thick pigment and inorganic salts and organic solvent mixing for changing metal phthalocyanine are ground.In this case, the thick face of the latter is more preferably used
Material.Specifically, kneading machine is added in thick pigment, inorganic salts and the organic solvent not made it dissolve, carries out mixing mill wherein
It is broken.As kneading machine at this time, can be used such as kneader, mixing grinding mill (ミ ッ Network ス マ ー ラ ー).
As above-mentioned inorganic salts, water-soluble inorganic salt can be properly used, such as it is preferable to use sodium chloride, potassium chloride, sulphur
The inorganic salts such as sour sodium.In addition, more preferably using 0.5 μm of average grain diameter or more 50 μm of inorganic salts below.Such inorganic salts can
By the way that common inorganic salts Crushing of Ultrafine is readily available.
It is preferably that 50nm metal halide phthalocyanine color below is used for by the average grain diameter of primary particle in present embodiment
Color filter application.Aforementioned preferred metal halide phthalocyanine in present embodiment in order to obtain, preferably raising inorganic salts are relative to molten
The usage amount of thick pigment usage amount in the grinding of agent salt.That is, relative to the thick pigment of 1 mass parts, the usage amount of the inorganic salts is preferred
It is set as 5 mass parts or more 20 below the mass, is more preferably set as 7 mass parts or more 15 below the mass.
As organic solvent, it is preferable to use being able to suppress the organic solvent of crystal growth.It, can as such organic solvent
Suitably to use water-miscible organic solvent.As water-miscible organic solvent, specifically, it can be mentioned, for example diethylene glycol, glycerol, second
Glycol, propylene glycol, liquid macrogol, liquid polypropylene glycol, 2- (methoxymethoxy) ethyl alcohol, butoxy ethanol, 2- are (different
Amoxy) ethyl alcohol, 2- (hexyloxy) ethyl alcohol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, three
Ethylene glycol, triethylene glycol monomethyl ether, 1- methoxy-2-propanol, 1- ethyoxyl -2- propyl alcohol, dipropylene glycol, dipropylene glycol monomethyl ether
Deng.The usage amount of the water-miscible organic solvent is not particularly limited, relative to the thick pigment of 1 mass parts, preferably 0.01 mass parts
Above 5 below the mass.
Temperature when lyonium salt is ground is preferably 30 DEG C or more 150 DEG C hereinafter, more preferably 80 DEG C or more 100 DEG C or less.
The time of lyonium salt grinding is preferably 20 hours 5 hours or more hereinafter, more preferably 18 hours 8 hours or more or less.
In this way, can obtain the average grain diameter containing primary particle be 50nm metal halide phthalocyanine color below, inorganic salts,
Organic solvent makees mixture as main component.It is removed from the mixture by organic solvent and inorganic salts, as needed to halogen
Change the solid matter based on metal phthalocyanine pigment to be cleaned, filtered, dried, crushed, so as to obtain metal halide
The powder of phthalocyanine color.
As cleaning, using any in washing, hot water wash.Wash number is in 1 time or more 5 times ranges below
Interior repetition.In the case where the aforementioned mixture for having used water-soluble inorganic salt and water-miscible organic solvent, water can be passed through
It washes and easily removes organic solvent and inorganic salts.If it is desired, acid can also be carried out in the way of not changing crystal state
Cleaning, alkali cleaning, organic solvent cleaning.
As it is above-mentioned filter out, clean after drying, such as batch-type or continuous drying can be enumerated etc., to pass through utilization
Carry out 80 DEG C or more 120 DEG C of the heating source that is set in drying machine are below to heat etc. and carries out dehydration or the desolventizing of pigment
In at least any one.As aforementioned drying machine, box like dryer, band drier, spray dryer etc. can be generally enumerated.Especially
It is spray drying easy dispersion when paste is made, so it is preferred that.In addition, the crushing after dry is not configured to increase specific surface area
Operation that is big or reducing the average grain diameter of primary particle.Crushing after drying is in order to for example as having used box dry
Machine, band drier drying in the case where like that, so that pigment is disintegrated when pigment is in ramped shaped (ラ Application プ shape) etc., powdered
And carry out.As the pulverizer used after drying, it can be mentioned, for example mortar, hammer-mill, disc mill, pin rod mills, jet mill
Machine etc..In this way, just having obtained containing dried powder of the metal halide phthalocyanine color as the pigment of main component.
Viridine green can become the compound in coloring source containing a kind, can also contain two or more.Contain two or more
In the case where, pigmentation can be carried out after mixing each compound contained by viridine green, viridine green institute can also be made
It is mixed after each pigment compounds contained.
[yellow uitramarine]
In addition, in order to form green pixel, the pigment composition for color filter of present embodiment can containing with it is above-mentioned green
The yellow uitramarine of at least one or more of color pigment together.
As yellow uitramarine, it can be mentioned, for example C.I. pigment yellow (PY) 1,2,3,4,5,6,10,12,13,14,15,16,
17、18、24、31、32、34、35、35:1、36、36:1、37、37:1、40、42、43、53、55、60、61、62、63、65、73、
74、77、81、83、93、94、95、97、98、100、101、104、106、108、109、110、113、114、115、116、117、
118、119、120、126、127、128、129、138、139、150、151、152、153、154、155、156、161、162、164、
166、167、168、169、170、171、172、173、174、175、176、177、179、180、181、182、185、187、199、
231 etc..It wherein, is only to be applicable to filming aspect on a small quantity from luminance height or pigment, preferably as yellow uitramarine
PY83,138,139,150,185 or 231, particularly preferred PY138,150,185 or 231.Can by a kind or 2 kinds in them with
On be applied in combination.
By yellow uitramarine mix and in the case where modulating pigment composition for color filter, viridine green and yellow uitramarine it is mixed
As long as composition and division in a proportion corresponds to every aforementioned viridine green of 100 mass parts, yellow uitramarine is that 1 mass parts or more 400 are below the mass
It can.
In addition, in the pigment composition for color filter of present embodiment, even and if having used yellow uitramarine to mix colours
In the case where, it can also make the high colour filter green pixel portion of the luminance compared with the case where using previous viridine green.
<manufacturing method of pigment composition for color filter>
Well known manufacturing method manufacture can be used in the pigment composition for color filter of present embodiment.
The manufacturing method of viridine green is as described above.
It specifically, can be by viridine green and yellow uitramarine as needed in micronizer, ball mill, vibromill
It carries out dry type in the pulverizers such as machine, vibrator to grind, next, carrying out by solvent salt milling, solvent boiling process etc.
Pigmentation.
About the method detailed of pigmentation, as documented by above-mentioned (manufacturing method of viridine green).
In the pigment composition for color filter of present embodiment, the average grain diameter of primary particle is 50nm hereinafter, preferably
For 1nm or more 50nm hereinafter, pigment agglomeration is also weaker, the dispersibility in synthetic resin that should be coloured etc. is more preferable.In addition, into one
Step is preferably 1nm or more 20nm or less.
In present embodiment, " average grain diameter of primary particle " can be used measuring method below and calculate.Firstly, with thoroughly
Colour filter pigment group of the emitting electron microscope JEM-2010 (Jeol Ltd.'s system) to present embodiment in the visual field
Polymer particle is taken pictures.Next, for the colour filter face of the present embodiment of 50 composition condensates on two dimensional image
The primary particle of feed composition finds out its longer diameter (major diameter) respectively.Next, the major diameter found out is averaging, thus
The average grain diameter of primary particle can be calculated.At this point, for the pigment composition for color filter of the present embodiment as sample,
It is set to be taken pictures after ultrasonic wave disperses with microscope in a solvent.Wherein it is possible to replace transmission-type using scanning electron microscope
Electron microscope.
<purposes>
Green pixel is formed by using the pigment composition for color filter of present embodiment, colour filter can be obtained.
The green pixel luminance formed using the pigment composition for color filter of present embodiment is high.Therefore, it can manufacture
The liquid crystal display device for having the high colour filter and liquid crystal display panel of the display performance with the green pixel.
(manufacturing method of colour filter)
The pigment composition for color filter of present embodiment can be used for being formed the green picture of colour filter by known method
The pattern in plain portion.Typically, the pigment composition for color filter for containing present embodiment and photoresist conduct can be obtained
The colour filter green pixel portion photosensitive composite of essential component.
As the manufacturing method of colour filter, such as the method etc. for being referred to as photoetching as shown below can be enumerated.Specifically, first
First, the pigment composition for color filter of present embodiment is dispersed in the decentralized medium comprising photoresist.Next, with
The dispersion liquid is coated on the transparent substrates such as glass by spin-coating method, rolling method, slot coated method, ink-jet method etc., obtains film.It connects
Get off, for the coated film, using ultraviolet light, carries out pattern exposure across photomask.Next, with solvent etc. to unexposed portion
Divide and cleaned, obtains green pattern.
As other manufacturing methods, such as can enumerate through electrodeposition process, transfer printing, micelle electrolysis method, PVED (photovoltaic electric
Deposition, Photovoltaic Electrodeposition) the methods of method forms the pattern in green pixel portion to manufacture colour filter
Method etc..Wherein, well known pigment also can be used, by same in the pattern in red pixel portion and the pattern in blue pixel portion
Method formed.
When modulating colour filter green pixel portion's photosensitive composite, for example, by the colour filter pigment of present embodiment
Composition, photoresist, Photoepolymerizationinitiater initiater and dissolve aforementioned resin organic solvent mixed as an essential component
It closes.More specifically, usually following method, that is, use the pigment composition for color filter, organic solvent and root of present embodiment
After modulating dispersion liquid according to the dispersing agent of needs, photoresist etc. is added wherein and is modulated.
As foregoing dispersant, such as DISPERBYK (デ ィ ス パ ー ビ ッ Network, the registration of Bi Ke chemical company can be enumerated
Trade mark) 130, DISPERBYK 161, DISPERBYK 162, DISPERBYK163, DISPERBYK 170, DISPERBYK
LPN-6919, DISPERBYK LPN-21116 etc..Furthermore it is also possible to and with levelling agent, coupling agent, cationic system surface-active
Agent etc..
As aforementioned organic solvents, such as aromatic systems solvent, ethyl acetate, the second such as have toluene, dimethylbenzene, methoxybenzene
The acetic acid such as acid butyl ester, propylene glycol methyl ether acetate, propylene glycol monoethyl ether acetate ester series solvent, ethoxy ethyl propionate etc.
The alcohol series solvents such as propionic acid ester series solvent, methanol, ethyl alcohol, butyl cellosolve, propylene glycol monomethyl ether, diethylene glycol ethyl ether, diethyl
The aliphatic such as the ketone series solvents such as the ether series solvents such as glycol dimethylether, methyl ethyl ketone, methyl iso-butyl ketone (MIBK), cyclohexanone, hexane
The nitride compounds such as hydrocarbon system solvent, N,N-dimethylformamide, butyrolactam, n-methyl-2-pyrrolidone, aniline, pyridine
Amino as the mixture of ester series solvent, methyl carbamate and urethanes 48:52 in solvent, gamma-butyrolacton etc.
Formic acid esters, water etc..As organic solvent, especially suitable be can be in propionic ester system, alcohol system, ether system, ketone system, nitrogen compound
System, lactone system, in water isopolarity solvent aqueous dissolution substance.The higher boiling that can also the use of boiling point is suitably 150 DEG C or more
Solvent.
Corresponding to the pigment composition for color filter of 100 mass parts present embodiments, by more than 300 mass parts 1000 mass
It is more than part organic solvent below and 0 mass parts as needed that 100 dispersing agent below the mass is to become uniform side
Formula is dispersed with stirring, and can obtain dispersion liquid.Next, the colour filter in the dispersion liquid, corresponding to 100 mass parts present embodiments
Device color compositions add 3 mass parts or more, 20 photoresist below the mass and to correspond to 1 mass parts photosensitive
Property resin be 0.05 mass parts or more, 3 Photoepolymerizationinitiater initiater below the mass, and be further added with solvent as needed,
It is dispersed with stirring in a manner of becoming uniform, colour filter green pixel portion photosensitive composite can be obtained.
As photosensitive resin, it can be mentioned, for example carbamate system resin, acrylic resin, polyamic acid systems
Thermoplastic resins such as resin, polyimides system resins, styrene maleic acid system resin, maleic anhydride of styrene system resin, such as
1,6- hexane diol diacrylate, glycol diacrylate, neopentylglycol diacrylate, triethylene glycol diacrylate
2 functional monomers, trihydroxy methyl as ester, bis- (acryloyloxyethoxy) bisphenol-As, 3- methyl pentanediol diacrylate etc.
Propane triacrylate, pentaerythritol triacrylate, three (2- hydroxyethyl) isocyanates, six acrylic acid of dipentaerythritol
The photopolymerization monomers such as polyfunctional monomer as ester, Dipentaerythritol Pentaacrylate etc..
As foregoing photo-polymerization initiator, it can be mentioned, for example acetophenone, benzophenone, benzyl dimethyl ketal, peroxidating
Bis- (4'- nitrine the benzal) -2- propane of benzoyl, 2-chlorothioxanthone, 1,3-, bis- (4'- nitrine the benzal) -2- propane-of 1,3-
2'- sulfonic acid, bis- nitrine talan -2,2'- disulfonic acid of 4,4'- etc..
The colour filter green pixel portion of modulation is with photosensitive composite by carrying out figure using ultraviolet light across photomask
After case exposure, unexposed portion is cleaned with organic solvent, alkaline water etc., colour filter can be obtained.
Embodiment
Further the present invention is described in detail hereinafter, enumerating embodiment and comparative example etc., but the present invention is not limited to these
Embodiment etc..
[Production Example 1] (pigment 1)
45 parts of chlorosulfuric acids, 109 parts of aluminium chloride, 15 parts of sodium chloride, 30 parts of ZnPcs, 300 parts are added in 300mL flask
Bromine.145 DEG C were warming up to 40 hours, after taking out into water, filtering, to obtain thick pigment 1.Thick pigment 1 that 20 parts are obtained,
1L dual-arm kneader is added in sodium chloride, 32 parts of diethylene glycols, the 1.8 parts of dimethylbenzene of 140 parts of crushing, and it is small to be kneaded 15 at 30 DEG C
When.After mixing, take out into 30 DEG C of 2kg of water, after stirring 1 hour, filtering, hot water wash, drying, crushing, to obtain pigment
1。
Obtained pigment 1 is carried out for average amount of chlorine atom and average bromine atom number using corporation of science
The x-ray fluorescence analysis of ZSX100E, according to the mass ratio of zinc atom, chlorine atom and bromine atom, as corresponding to each zinc atom
Relative value and calculate.Wherein, 1g halogenation ZnPc will be press-formedObtained by sample as measurement
Sample, withMeasurement diameter, measure under vacuum atmosphere.As a result, pigment 1 is following halogenation ZnPc face
Material: the Number of Halogen Atoms average out in 1 molecule 15.73, wherein bromine atom number average out to 14.13, amount of chlorine atom average out to
1.60 a.In addition, being obtained according to the particle size determination carried out using Japan Electronics Corporation transmission electron microscope JEM-2010
The average grain diameter of 1 primary particle of pigment is 0.02 μm.
By 2.48 parts of obtained pigment 1 and 1.24 part BYK-LPN, 6919,1.86 parts of UNIDIC ZL-295,10.92 part third
Glycol monomethylether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloring compositions
Object 1.4.0 parts of coloured compositions, 1,0.98 part of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate is added, with paint
Blender mixing, to obtain the evaluation composition 1 for being used to form colour filter green pixel portion.By the evaluation composition
1 is spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtains evaluation glass substrate.The evaluation is used into day with glass substrate
Vertical high and new technology company U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 2] (pigment 2-2: pigment 1+ pigment 2-1)
91 parts of chlorosulfuric acids, 109 parts of aluminium chloride, 15 parts of sodium chloride, 30 parts of ZnPcs, 41 parts of bromines are added in 300mL flask.
130 DEG C were warming up to 40 hours, after taking out into water, filtering, to obtain thick pigment 2.By 20 parts of obtained thick pigment 2,140
1L dual-arm kneaders are added in sodium chloride, 32 parts of diethylene glycols, the 1.8 parts of dimethylbenzene of part crushing, are kneaded 6 hours at 100 DEG C.It is mixed
After refining, take out into 80 DEG C of water of 2kg, after stirring 1 hour, filtering, hot water wash, drying, crushing, to obtain pigment 2-1.It is right
In obtained pigment 2-1, x-ray fluorescence analysis is carried out using method same as Production Example 1.As a result, under pigment 2-1 is
State zinc halide phthalocyanine color: the Number of Halogen Atoms average out in 1 molecule 11.15, wherein bromine atom number average out to 8.63, chlorine are former
Subnumber average out to 2.52.
Next, pigment 2-1 that 0.12 part obtains and 1.86 parts of pigment 1 are sufficiently mixed, pigment 2-2 is obtained.For
The pigment 2-2 arrived carries out x-ray fluorescence analysis using method same as Production Example 1.As a result, pigment 2-2 is following halogen
Change ZnPc pigment: the Number of Halogen Atoms average out in 1 molecule 15.30, wherein bromine atom number average out to 13.59, chlorine atom
Number average out to 1.71.In addition, being surveyed according to the partial size carried out using Japan Electronics Corporation transmission electron microscope JEM-2010
Fixed, the average grain diameter of obtained pigment 2-2 primary particle is 0.02 μm.
6919,1.86 parts of UNIDIC ZL-295 of pigment 2-2 and 1.24 parts of BYK-LPN that 2.48 parts are obtained, 10.92 parts
Propylene glycol methyl ether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains colour cell
Close object 2.4.0 parts of coloured compositions, 2,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate are added, with oil
Blender mixing is painted, to obtain the evaluation composition 2 for being used to form colour filter green pixel portion.It combines the evaluation
Object 2 is spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtains evaluation glass substrate.The evaluation is used with glass substrate
High and new technology company, Hitachi U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and figure
1C。
[Production Example 3] (pigment 3)
60 parts of chlorosulfuric acids, 109 parts of aluminium chloride, 15 parts of sodium chloride, 30 parts of ZnPcs, 230 parts are added in 300mL flask
Bromine.145 DEG C were warming up to 40 hours, after taking out into water, filtering, to obtain thick pigment 3.Thick pigment 3 that 20 parts are obtained,
1L dual-arm kneader is added in sodium chloride, 32 parts of diethylene glycols, the 1.8 parts of dimethylbenzene of 140 parts of crushing, and it is small to be kneaded 15 at 30 DEG C
When.After mixing, take out into 30 DEG C of 2kg of water, after stirring 1 hour, filtering, hot water wash, drying, crushing, to obtain pigment
3.For obtained pigment 3, x-ray fluorescence analysis is carried out using method same as Production Example 1.As a result, under pigment 3 is
State zinc halide phthalocyanine color: the Number of Halogen Atoms average out in 1 molecule 15.10, wherein bromine atom number average out to 13.36, chlorine
Atomicity average out to 1.74.In addition, according to the grain carried out using Japan Electronics Corporation transmission electron microscope JEM-2010
Diameter measurement, the average grain diameter of obtained 3 primary particle of pigment are 0.02 μm.
By 2.48 parts of obtained pigment 3 and 1.24 part BYK-LPN, 6919,1.86 parts of UNIDIC ZL-295,10.92 part third
Glycol monomethylether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloring compositions
Object 3.4.0 parts of coloured compositions, 3,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate are added, with paint
Blender mixing, to obtain the evaluation composition 3 for being used to form colour filter green pixel portion.By the evaluation composition
3 are spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.Use high and new technology company, Hitachi system
U-3900 measures the monochromatic spectral transmission spectrum of the evaluation glass substrate.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and figure
1C。
[Production Example 4] (pigment 4)
By 1,1.5 part of starlight PMC corporation TS-1316 of thick pigment of 20 parts of Production Examples 1,140 parts of sodium chloride crushed, 32
1L dual-arm kneaders are added in part diethylene glycol, 1.8 parts of dimethylbenzene, are kneaded 15 hours at 30 DEG C.After mixing, take out to 2kg 30
DEG C water in, stirring 1 hour after, filtering, hot water wash, drying, crushing, to obtain pigment 4.According to utilize Japan Electronics Corporation
The particle size determination that transmission electron microscope JEM-2010 processed is carried out, the average grain diameter of obtained 4 primary particle of pigment are 0.02 μm.
By 2.48 parts of obtained pigment 4 and 1.24 part BYK-LPN, 6919,1.86 parts of UNIDIC ZL-295,10.92 part third
Glycol monomethylether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloring compositions
Object 4.4.0 parts of coloured compositions, 4,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate are added, with paint
Blender mixing, to obtain the evaluation composition 4 for being used to form colour filter green pixel portion.By the evaluation composition
4 are spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.The evaluation is used into day with glass substrate
Vertical high and new technology company U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 5] (pigment 5)
By 1,1.5 part of starlight PMC corporation VS-1028 of thick pigment of 20 parts of Production Examples 1,140 parts of sodium chloride crushed, 32
1L dual-arm kneaders are added in part diethylene glycol, 1.8 parts of dimethylbenzene, are kneaded 15 hours at 30 DEG C.After mixing, take out to 2kg 30
DEG C water in, stirring 1 hour after, filtering, hot water wash, drying, crushing, to obtain pigment 5.According to utilize Japan Electronics Corporation
The particle size determination that transmission electron microscope JEM-2010 processed is carried out, the average grain diameter of obtained 5 primary particle of pigment are 0.02 μm.
By 2.48 parts of obtained pigment 5 and 1.24 part BYK-LPN, 6919,1.86 parts of UNIDIC ZL-295,10.92 part third
Glycol monomethylether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloring compositions
Object 5.4.0 parts of coloured compositions, 5,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate are added, with paint
Blender mixing, to obtain the evaluation composition 5 for being used to form colour filter green pixel portion.By the evaluation composition
5 are spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.The evaluation is used into day with glass substrate
Vertical high and new technology company U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 6] (pigment 6)
By 1,1.5 part of starlight PMC corporation X-1 of thick pigment of 20 parts of Production Examples 1,140 parts of sodium chloride crushed, 32 part two
1L dual-arm kneader is added in ethylene glycol, 1.8 parts of dimethylbenzene, is kneaded 15 hours at 30 DEG C.After mixing, take out to 30 DEG C of 2kg
In water, after stirring 1 hour, filtering, hot water wash, drying, crushing, to obtain pigment 6.According to saturating using Japan Electronics Corporation's system
The particle size determination of electron microscope JEM-2010 progress is penetrated, the average grain diameter of obtained 6 primary particle of pigment is 0.02 μm.
By 2.48 parts of obtained pigment 6 and 1.24 part BYK-LPN, 6919,1.86 parts of UNIDIC ZL-295,10.92 part third
Glycol monomethylether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloring compositions
Object 6.4.0 parts of coloured compositions, 6,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate are added, with paint
Blender mixing, to obtain the evaluation composition 6 for being used to form colour filter green pixel portion.By the evaluation composition
6 are spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.The evaluation is used into day with glass substrate
Vertical high and new technology company U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 7] (pigment 7)
Sodium chloride that 1,1.5 part of thick pigment, 690,140 parts of BASF AG JONCRYL of 20 parts of Production Examples 1 is crushed,
1L dual-arm kneader is added in 32 parts of diethylene glycols, 1.8 parts of dimethylbenzene, is kneaded 15 hours at 30 DEG C.After mixing, take out to 2kg
In 30 DEG C of water, after stirring 1 hour, filtering, hot water wash, drying, crushing, to obtain pigment 7.According to public using Japan Electronics
The particle size determination that transmission electron microscope JEM-2010 processed is carried out is taken charge of, the average grain diameter of obtained 7 primary particle of pigment is 0.02 μ
m。
By 2.48 parts of obtained pigment 7 and 1.24 part BYK-LPN, 6919,1.86 parts of UNIDIC ZL-295,10.92 part third
Glycol monomethylether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloring compositions
Object 7.4.0 parts of coloured compositions, 7,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol methyl ether acetate are added, with paint
Blender mixing, to obtain the evaluation composition 7 for being used to form colour filter green pixel portion.By the evaluation composition
7 are spin-coated in soda lime glass, 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.The evaluation is used into day with glass substrate
Vertical high and new technology company U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 8] (dispersion of yellow uitramarine)
By 1.65 parts of pigment yellow 13s 8 (BASF AG Paliotol Yellow L0960HD) and 3.85 parts
DISPERBYK-161 (Bi Ke chemical company system), 11.00 parts of propylene glycol methyl ether acetates together, use 0.3~0.4mm's
Zirconium pearl is dispersed 2 hours with paint shaker, obtains coloured composition A.4.0 parts of coloured composition A, 0.98 part of UNIDIC are added
ZL-295,0.22 part of propylene glycol methyl ether acetate, are mixed with paint shaker, to obtain toning composition.
[embodiment 1] (toning carried out using yellow uitramarine)
Take film coloration in the mode of (x, y)=(0.275,0.570), by toning composition and evaluation composition 1,
Evaluation composition 2, evaluation composition 3, evaluation composition 4, evaluation composition 5, evaluation composition 6 or evaluation
It is mixed with composition 7, film, to obtain evaluation glass substrate.Using the glass substrate, high and new technology company, Hitachi is utilized
Luminance under U-3900 measurement illuminant-C processed.Show the result in table 1 below.
[Production Example 9] naphthol green 58 (FASTOGEN Green A110)
By 2.48 parts of naphthol greens 58 (FASTOGEN Green A110), 1.24 parts of BYK-LPN, 6919,1.86 parts of UNIDIC
ZL-295,10.92 parts of propylene glycol methyl ether acetates are together, small with paint shaker dispersion 2 using the zirconium pearl of 0.3~0.4mm
When, obtain coloured composition 9.4.0 parts of coloured compositions, 9,0.98 parts of UNIDIC ZL-295,0.22 part of propylene glycol list first are added
Ether acetic acid ester, is mixed with paint shaker, to obtain the evaluation composition 9 for being used to form colour filter green pixel portion.
The evaluation composition 9 is spin-coated in soda lime glass, it is 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.This is commented
Valence measures monochromatic spectral transmission spectrum with glass substrate with high and new technology company, Hitachi U-3900.Spectral transmission spectrum is shown in
Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 10] naphthol green 59 (FASTOGEN Green C100)
By 2.48 parts of naphthol greens 59 (FASTOGEN Green C100) and 1.24 parts 6919,1.86 parts of BYK-LPN
UNIDIC ZL-295,10.92 parts of propylene glycol methyl ether acetates together, using the zirconium pearl of 0.3~0.4mm, use paint shaker
Dispersion 2 hours, obtains coloured composition 10.4.0 parts of coloured compositions, 10,0.98 parts of UNIDIC ZL-295,0.22 part third are added
Glycol monomethylether acetate is mixed with paint shaker, so that the evaluation for obtaining being used to form colour filter green pixel portion is used
Composition 10.The evaluation composition 10 is spin-coated in soda lime glass, it is 3 minutes dry at 90 DEG C, obtain evaluation glass
Substrate.The evaluation is measured into monochromatic spectral transmission spectrum with glass substrate with high and new technology company, Hitachi U-3900.It will light splitting
Transmitted spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[Production Example 11] pigment Green 7 (FASTOGEN Green S)
By 1.65 parts of pigment Green 7s (FASTOGEN Green S) and 1.93 parts of BYK-LPN, 6919,12.93 parts of propylene glycol lists
Methyl ether acetate together, using the zirconium pearl of 0.3~0.4mm, is dispersed 2 hours with paint shaker, obtains coloured composition 11.Add
Enter 6.0 parts of coloured compositions, 11,1.47 parts of UNIDIC ZL-295,0.33 part of propylene glycol methyl ether acetate, uses paint shaker
Mixing, to obtain the evaluation composition 11 for being used to form colour filter green pixel portion.The evaluation composition 11 is revolved
It is coated in soda lime glass, it is 3 minutes dry at 90 DEG C, obtain evaluation glass substrate.By the evaluation with glass substrate Hitachi
High and new technology company U-3900 measures monochromatic spectral transmission spectrum.Spectral transmission spectrum is shown in Figure 1A and Figure 1B.Wherein, face
Expect green 7 pigment low for transmissivity, therefore forms film in such a way that the spectral transmission of very big transmission peak wavelength is 80%
When can float, thus do not provide data in the spectral transmission spectrum of 580~620nm range shown in Fig. 1 C.
[Production Example 12] pigment green 36 (FASTOGEN Green 2YK-50)
By 2.48 parts of pigment green 36s (FASTOGEN Green 2YK-50) and 1.24 parts 6919,1.86 parts of BYK-LPN
UNIDIC ZL-295,10.92 parts of propylene glycol methyl ether acetates together, using the zirconium pearl of 0.3~0.4mm, use paint shaker
Dispersion 2 hours, obtains coloured composition 12.4.0 parts of coloured compositions, 12,0.98 parts of UNIDIC ZL-295,0.22 part third are added
Glycol monomethylether acetate is mixed with paint shaker, so that the evaluation for obtaining being used to form colour filter green pixel portion is used
Composition 12.The evaluation composition 12 is spin-coated in soda lime glass, it is 3 minutes dry at 90 DEG C, obtain evaluation glass
Substrate.The evaluation is measured into monochromatic spectral transmission spectrum with glass substrate with high and new technology company, Hitachi U-3900.It will light splitting
Transmitted spectrum is shown in Figure 1A, Figure 1B and Fig. 1 C.
[comparative example 1] (toning carried out using yellow uitramarine)
With mode that film coloration is (x, y)=(0.275,0.570) by toning composition and evaluation composition 9,
Evaluation composition 10, evaluation composition 11 or evaluation are mixed with composition 12, film, to obtain evaluation glass base
Plate.Using the glass substrate, the luminance under illuminant-C is measured using high and new technology company, Hitachi U-3900.Show the result in
Under table 1.
[table 1]
According to table 1 and Figure 1A, Figure 1B and Fig. 1 C, for evaluating with composition 1~7, the transmissivity of 555nm is
50.47%, 50.28%, 47.41%, 45.73%, 46.45%, 50.07% and 45.89%, 45% or more.In addition, wavelength
The ratio between the transmissivity of 505nm and the transmissivity of wavelength 555nm ((A)/(B)) are 1.40,1.44,1.53,1.57,1.56,1.42
With 1.59,1.4 or more.Further, half breadth 73nm, 75nm, 73nm, 68nm, 68nm, 71nm and 68nm, in 80nm
Below.
By with above-mentioned dichroism, evaluation is with composition 1~7 and the evaluation that contains previous viridine green with combining
Object 9~12 is compared, to become the mode and the toning mixed luminance of composition of (x, y)=(0.275,0.570) under illuminant-C
It is high.
Wherein, information made of the halogen rate in 1 molecule of halogenation ZnPc of pigment 1~3 being summarized is shown in table 2.
[table 2]
According to table 2, for pigment 1~3, in 1 molecular halides ZnPc, average bromine atom number is 14.13,13.59 and
13.36, in 13~15 ranges.In addition, average amount of chlorine atom is 1.60,1.71 and in 1 molecular halides ZnPc
1.74, in 1~3 range.In addition, the ratio between average bromine atom number and average amount of chlorine atom in 1 molecular halides ZnPc
((E)/(F)) is 8.83,7.94 and 7.69,7 or more.
By for above-mentioned halogen rate, pigment 1~3 can become while guaranteeing the form and aspect of green brightness ratio as previous
Viridine green the high viridine green of naphthol green 58 and 59.
It can be seen from the above result that it is previous to be capable of forming luminance ratio by using the viridine green with specific dichroism
High colour filter.
Industry utilizability
Pigment composition for color filter according to the present embodiment is capable of providing the Gao Hui that can compensate the characteristic of B-YAG
Colour filter is spent, which is the faint backlight of green emitting intensity.In addition, using the colour filter pigment group of present embodiment
It is high to close the green pixel luminance that object is formed, thus can manufacture have the high colour filter of the display performance with the green pixel and
The liquid crystal display device of liquid crystal display panel.
Claims (5)
1. a kind of pigment composition for color filter, containing viridine green, the viridine green has following dichroism:
When foring film in such a way that the spectral transmission of very big transmission peak wavelength is 80%,
The transmissivity of wavelength 555nm is 45% or more,
The ratio between transmissivity and the transmissivity of wavelength 555nm of wavelength 505nm are that T (505nm)/T (555nm) is 1.40 or more, half
Value width is 80nm or less.
2. pigment composition for color filter according to claim 1, the viridine green is bromination chlorination ZnPc.
3. pigment composition for color filter according to claim 1 or 2, the viridine green is in 1 molecule containing average
The bromination chlorination ZnPc of 13 or more 15 bromines below, average 1 or more 3 chlorine below.
4. pigment composition for color filter described in any one of claim 1 to 3, further contains yellow uitramarine.
5. a kind of colour filter contains pigment composition for color filter according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2016-169928 | 2016-08-31 | ||
| JP2016169928 | 2016-08-31 | ||
| PCT/JP2017/031119 WO2018043548A1 (en) | 2016-08-31 | 2017-08-30 | Pigment composition for color filters, and color filter |
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| CN109642970A true CN109642970A (en) | 2019-04-16 |
| CN109642970B CN109642970B (en) | 2021-09-10 |
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|---|---|---|---|---|
| CN112074574A (en) * | 2019-12-09 | 2020-12-11 | Dic株式会社 | Zinc halide phthalocyanine pigment for color filter and method for producing zinc halide phthalocyanine pigment for color filter |
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| KR20220101044A (en) * | 2019-12-09 | 2022-07-19 | 디아이씨 가부시끼가이샤 | Halogenated zinc phthalocyanine pigment for color filters, and method for manufacturing halogenated zinc phthalocyanine pigment for color filters |
| JP7464630B2 (en) * | 2020-07-01 | 2024-04-09 | Dic株式会社 | Halogenated zinc phthalocyanine pigment and its manufacturing method |
| KR20230057909A (en) * | 2020-09-02 | 2023-05-02 | 디아이씨 가부시끼가이샤 | Method for producing pigments for color filters |
| WO2022080002A1 (en) * | 2020-10-15 | 2022-04-21 | Dic株式会社 | Pigment for color filter, coloring composition, and color filter |
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| US9873796B2 (en) | 2014-02-07 | 2018-01-23 | Dic Corporation | Green pigment composition for color filter, and color filter |
| KR20160026629A (en) * | 2014-09-01 | 2016-03-09 | 동우 화인켐 주식회사 | Colored photosensitive resin composition |
| CN110618583B (en) * | 2015-03-27 | 2024-02-23 | 三菱化学株式会社 | Colored resin composition, color filter, and image display device |
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| CN1460192A (en) * | 2001-02-23 | 2003-12-03 | 大日本油墨化学工业株式会社 | Color filter |
| JP2003185825A (en) * | 2001-12-19 | 2003-07-03 | Dainippon Ink & Chem Inc | Pigment composition, pigment dispersion resist and color filter |
| JP2007018902A (en) * | 2005-07-08 | 2007-01-25 | Pentax Corp | Multi-color light-emitting display device |
| JP2007284589A (en) * | 2006-04-18 | 2007-11-01 | Dainippon Ink & Chem Inc | Polyhalogenated zinc phthalocyanine pigment composition and color filter |
| CN102227655A (en) * | 2008-10-29 | 2011-10-26 | 全球Oled科技有限责任公司 | Color filter element with improved colorant dispersion |
| CN105388705A (en) * | 2014-09-01 | 2016-03-09 | 东友精细化工有限公司 | Coloured photosensitive resin composition |
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| CN112074574A (en) * | 2019-12-09 | 2020-12-11 | Dic株式会社 | Zinc halide phthalocyanine pigment for color filter and method for producing zinc halide phthalocyanine pigment for color filter |
| TWI738310B (en) * | 2019-12-09 | 2021-09-01 | 日商Ｄｉｃ股份有限公司 | Halogenated zinc phthalocyanine pigment for color filters and method for manufacturing thereof |
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| Publication number | Publication date |
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| KR102383525B1 (en) | 2022-04-06 |
| CN109642970B (en) | 2021-09-10 |
| WO2018043548A1 (en) | 2018-03-08 |
| JPWO2018043548A1 (en) | 2018-09-20 |
| KR20190045183A (en) | 2019-05-02 |
| JP6477977B2 (en) | 2019-03-06 |
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