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Black composition, black coating composition, resin black matrix, color filter for liquid crystal display and liquid crystal display

A composition, black technology, applied in the direction of instruments, filters, coatings, etc., can solve the problems of increased manufacturing cost, insufficient adhesion, low adhesion of resin black matrix, etc., to prevent the reduction of yield, cost reduction effect

Active Publication Date: 2006-11-22
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the black matrix made of a metal thin film has a problem in that the manufacturing cost is increased due to the complicated manufacturing process, and as a result, the cost of the color filter itself is increased.
When the opacifier concentration is high, the adhesion between the resin black matrix and the glass becomes insufficient
When the pattern width of the resin black matrix is ​​narrow, there are problems such as that the pattern cannot be obtained
In the case of a black radiation-sensitive resin composition, this problem is more severe, and not only is there a problem of adhesion, but even in the case of a wide pattern width, the edge shape becomes tapered or reversed tapered, which is difficult to obtain. The problem of obtaining a vertically steep edge shape preferred as a resin black matrix
[0016] Actually, in the color filter using the resin black matrix, there is a problem that the adhesiveness of the resin black matrix is ​​lower than that of the metal film black matrix, that is, the problem that the black matrix peels off at the sealing part when the liquid crystal is injected , or the problem of being unable to form a narrow pattern with a pattern width less than or equal to 10 μm

Method used

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  • Black composition, black coating composition, resin black matrix, color filter for liquid crystal display and liquid crystal display
  • Black composition, black coating composition, resin black matrix, color filter for liquid crystal display and liquid crystal display
  • Black composition, black coating composition, resin black matrix, color filter for liquid crystal display and liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] After putting titanium dioxide powder (4.0kg) with an average primary particle size of 40nm into the reaction furnace, flow ammonia gas at a linear velocity of 6cm / sec in the furnace, and react at a furnace temperature of 850°C for 9 hours to obtain titanate nitrogen Compound A (3.2 kg). The diffraction spectrum of the powder of titanate nitride A as a light-shielding agent was measured using an X-ray diffraction device manufactured by Rigaku, and the result was, I 1 , I 2 , I 3 36cps, 36cps, 818cps respectively, X-ray intensity ratio R 1 0.82, X-ray intensity ratio R 2 is 1.00.

[0102] In γ-butyrolactone (3825g) solvent, pyromellitic dianhydride (149.6g), benzophenone tetracarboxylic dianhydride (225.5g), 3,3'-diaminodiphenyl sulfone (69.5 g), 4,4'-diaminodiphenyl ether (210.2g), and bis-3-(aminopropyl)tetramethylsiloxane (17.4g) reacted at a temperature of 60°C for 3 hours, Maleic anhydride (2.25g) was added, and it was made to react at the temperature of 60 de...

Embodiment 2

[0105]Put titanium dioxide powder (4.0kg) with an average primary particle size of 50nm into the reaction furnace, then circulate ammonia gas at a linear velocity of 5.5cm / sec in the furnace, and react at a furnace temperature of 850°C for 8 hours to obtain nitrogen titanate Compound B (3.1 kg). The diffraction spectrum of the powder of titanate nitride B was measured using an X-ray diffraction device manufactured by Rigaku, and the result was, I 1 , I 2 , I 3 Respectively 41cps, 73cps, 775cps, X-ray intensity ratio R 1 0.71, X-ray intensity ratio R 2 is 1.78. Except having used titanate nitride B as a light-shielding agent, it carried out similarly to Example 1, and formed the light-shielding film for resin black matrices. The film thickness of the obtained light-shielding film for resin black matrices was 0.8 micrometers, and OD value was 3.51. In addition, a cellophane cross-hatch peeling test was performed in the same manner as in Example 1, but no peeling site was f...

Embodiment 3

[0107] Put titanium dioxide powder (4.0kg) with an average primary particle size of 45nm into the reaction furnace, flow ammonia gas at a linear velocity of 6.5cm / sec in the furnace, and react at a furnace temperature of 800°C for 8 hours to obtain nitrogen titanate Compound C (3.2 kg). The diffraction spectrum of the powder of titanate nitride C was measured using an X-ray diffraction device manufactured by Rigaku, and the result was, I 1 , I 2 , I 3 Respectively 49cps, 42cps, 802cps, X-ray intensity ratio R 1 0.78, X-ray intensity ratio R 2 is 0.86. Except having used titanate nitride C as a light-shielding agent, it carried out similarly to Example 1, and formed the light-shielding film for resin black matrices. The film thickness of the obtained light-shielding film for resin black matrices was 0.8 micrometers, and OD value was 3.55. In addition, a cellophane cross-hatch peeling test was performed in the same manner as in Example 1, but no peeling site was found.

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Abstract

A black coating composition which gives a highly adhesive resin black matrix that exhibits a high OD value which was able to be attained only by metal thin film black matrices is disclosed. The black coating composition comprises as indispensable components a titanium nitride oxide and a resin. The X-ray intensity ratios R 1 and R 2 of the titanium nitride oxide represented by the Equations (1) and (2) below, respectively, satisfy the relationships represented by Formulae (3) and (4) below: R 1 = I 3 / { I 3 + 1.8 ( I 1 + 1.8 I 2 ) } R 2 = I 2 / I 1 R 1 > 0.70 0.85 < R 2 < 1.80 wherein I 1 represents the maximum diffraction intensity of the titanium nitride oxide when the angle of diffraction 2 , determined by using CuK+- line as the X-ray source, is 25 DEG to 26 DEG , I 2 represents the maximum diffraction intensity of the titanium nitride oxide when the angle of diffraction 2 is 27 DEG to 28 DEG , and I 3 represents the maximum diffraction intensity of the titanium nitride oxide when the angle of diffraction 2 is 36 DEG to 38 DEG .

Description

technical field [0001] The present invention relates to a black composition, a black film composition, a resin black matrix using them, a color filter for a liquid crystal display device having the resin black matrix, and a liquid crystal display device having the color filter. [0002] A liquid crystal display device refers to the display of images or characters or information processing by utilizing the electro-optical response of liquid crystals. Specifically, it is used in personal computers, navigation systems, liquid crystal televisions, liquid crystal projectors, and liquid crystal spatial modulation elements. Background technique [0003] The liquid crystal display device has a structure in which a liquid crystal layer is sandwiched between two substrates. By utilizing the electro-optical response of the liquid crystal layer with the application of an external field, it is possible to display brightness and darkness. By using a color filter composed of pixels with col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K3/28C08L33/06C08L79/08C09D133/06G02B5/20
CPCC09D133/06G02B5/201C09K2323/00C08L33/06C08L79/08C08L101/00
Inventor 吉冈正裕长瀬亮辻井正也江口益市
Owner TORAY IND INC
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