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Colored resin composition, color filter, liquid crystal display device, organic el display device

A resin composition and color filter technology, which is applied in the direction of optical filters, organic dyes, lighting devices, etc., can solve the problems of reduced chroma of color filters, increased power consumption of displays, and whitening of displays. Excellent formability, high color reproducibility, and high solvent resistance

Active Publication Date: 2013-12-04
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when these methods are used, the chroma of the color filter itself is lowered, and as a result, the entire display becomes whitish, and the vividness of colors necessary for the display is insufficient.
[0007] On the contrary, if the content of the coloring pigment is increased while giving priority to chroma, the display will become dark as a whole. At this time, in order to ensure the brightness, the light quantity of the backlight must be increased, and this will cause the power consumption of the display. growing problem
[0008] In view of this, in order to achieve the purpose of increasing the amount of light transmission, there is known a method of finely dispersing pigment particles until the particle diameter reaches 1 / 2 or less of the color wavelength (Non-Patent Document 1), but such a method requires more than the existing method. There are technologies for further micro-dispersion, cost increase and stability after dispersion become problems

Method used

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  • Colored resin composition, color filter, liquid crystal display device, organic el display device
  • Colored resin composition, color filter, liquid crystal display device, organic el display device
  • Colored resin composition, color filter, liquid crystal display device, organic el display device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0760] [Manufacturing method of colored resin composition]

[0761] In the present invention, the colored resin composition can be prepared by an appropriate method, for example, by combining the above (A) dye, (C) binder resin, and (D) chain transfer agent comprising compound (I) together with ( B) The solvent and other additives are mixed together to prepare a colored resin composition.

[0762] In addition, as a preparation method in the case where a pigment is further contained in addition to the (A) dye, the following method is mentioned: in the presence of a dispersant and, if necessary, a dispersing aid added in a solvent containing a pigment, a certain In some cases, together with a part of (C) binder resin, mixing and dispersing are carried out while pulverizing using, for example, a paint shaker, a sand mill, a ball mill, a roller mill, a stone mill, a jet mill, a homogenizer, etc. , thereby preparing a colored dispersion. (A) Dye, (C) Binder resin, (D) Chain transfe...

Embodiment

[0793] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited by the description of the following examples within the range not exceeding the gist of the present invention.

[0794]

[0795] [Synthesis of Dye]

[0796] (Synthesis of Compound A)

[0797] [chemical formula 71]

[0798]

[0799] (reaction 1)

[0800] Compound 2 (5.02g, 20mmol), compound 1 (14ml, 80mmol), sodium tert-butoxide (7.53g, 80mmol), toluene (100ml), palladium (II) acetate (0.55g, 2.45mmol), three tert- A mixture of butylphosphine (10% in hexane, 10 g, 4.94 mmol) was heated to reflux for 10 hours under nitrogen. After cooling to room temperature, water was added and filtered with celite, and the filtrate was extracted with toluene and washed with water. The toluene layer was concentrated under reduced pressure, purified by silica gel column chromatography (500 g of silica gel, hexane / ethyl acetate 10 / 1-8 / 1-6 / 1), and...

Synthetic example 1

[0801] (Synthesis Example 1: Synthesis of Dye (1))

[0802] [chemical formula 72]

[0803]

[0804] (Reaction 2)

[0805] Phosphorus oxychloride (12.2ml, 134mmol) was added to a mixture of compound A (39g, 89.3mmol), compound 3 (18.5g, 89.3mmol) and toluene (120ml), and heated to reflux for 3.5 hours. After returning to room temperature, water was added, extraction was performed with chloroform, and the chloroform layer was washed three times with saturated saline. Purification was carried out by silica gel column chromatography (300 g of silica gel, chloroform / methanol 15 / 1), and the obtained solid was washed with hexane to obtain compound B (54.8 g, yield 93%).

[0806] (Reaction 3)

[0807] A mixture of compound B (29 g, 43.8 mmol), lithium bis(trifluoromethanesulfonyl)imide (12.6 g, 43.8 mmol) and methanol (175 ml) was stirred at 50° C. for 1.5 hours. Concentration under reduced pressure was carried out, and the obtained solid was washed with methanol / water=1 / 2 to obt...

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PUM

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Abstract

The purpose of the invention is to provide a display having high image quality; to provide a colored resin composition with which it is possible to prevent a reduction in image quality of the display; and to provide a color filter having excellent pixel color purity and transmittance, as well as a high-quality liquid crystal display device and an organic EL display device, by using such a colored resin composition. The invention relates to a colored resin composition comprising (A) a dye, (B) a solvent, (C) a binder resin, and (D) a chain transfer agent that contains a specific compound.

Description

technical field [0001] The present invention relates to a colored resin composition, a color filter, a liquid crystal display device, and an organic EL display device. Background technique [0002] In recent years, as flat panel displays, color liquid crystal display devices and organic EL (Electroluminescence) displays have attracted attention, and color filters are used in these displays. [0003] For example, as an example of a color liquid crystal display device, there is a transmissive liquid crystal display device basically composed of a color filter substrate, a counter electrode substrate, and a liquid crystal layer. Matrix, including colored layers of multiple colors (usually three primary colors of red (R), green (G), and blue (B), transparent electrodes and alignment layers; the counter electrode substrate has thin film transistors (TFT elements), pixels An electrode and an alignment layer; the liquid crystal layer is formed by arranging the two substrates facing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004C09B11/26C09B67/22C09B67/46G02B5/20G02F1/1335H01L51/50H05B33/12
CPCC09B69/06C09B69/00C09B11/10C09B11/26C09B67/001C09B33/12G03F7/0007C09B11/24H01L27/322G03F7/027C09B29/363C09B29/3634G03F7/105H10K59/38
Inventor 藤原宗贤蓼沼祥平西村政昭相马实
Owner MITSUBISHI RAYON CO LTD
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