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Color correction filter, image display apparatus and liquid crystal display apparatus

A color filter and complementary color technology, which is applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of degradation, fading, and poor durability of color complementary color filters, etc., and achieves suppression of degradation, improved color tone performance, and excellent durability Effect

Inactive Publication Date: 2011-05-25
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the pigments used in the aforementioned color correction filters are degraded and faded by moisture, oxygen, light, etc.
Therefore, the aforementioned complementary color filter is not good in durability

Method used

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  • Color correction filter, image display apparatus and liquid crystal display apparatus
  • Color correction filter, image display apparatus and liquid crystal display apparatus
  • Color correction filter, image display apparatus and liquid crystal display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] make figure 2 Complementary color filter constructed as shown.

[0118] (Preparation of coating solution for color correction layer)

[0119] That is, first, Br, which is an ion represented by the aforementioned structural formula (5), - Salt dye (1-ethyl-2[(1-ethyl-2(1H)-quinolinylidene)methyl]quinolinium bromide (manufactured by Hayashibara Biochemical Laboratory Co., Ltd.) was dissolved in ethanol, A 1.2 g / L coating liquid for a color correction layer was obtained.

[0120] (making of complementary color layer)

[0121] Next, the aforementioned coating liquid was dropped onto the first protective layer (glass plate), and applied by a spin coating method at 1000 times / minute×30 seconds to form a coating film, which was then dried. In this way, a color-complementing layer containing the J-associated compound of the aforementioned pigment was produced on the aforementioned first protective layer. The maximum absorption peak wavelength of the color-complementing la...

Embodiment 2

[0126] Except for using an ethylene-vinyl alcohol copolymer film (thickness 30 μm, manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "Soarnol 29") having a moisture barrier function and an oxygen barrier function as the second protective layer, the rest are the same as in Example 1. Perform the same operation to obtain the complementary color filter of this embodiment.

Embodiment 3

[0128] make figure 2 Complementary color filter constructed as shown.

[0129] (Preparation of coating solution for color correction layer)

[0130] That is, first, the same dye as that used in Example 1 was used, and PVA (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., degree of polymerization: 1800, degree of saponification: 98.0 to 99.0 mol%) was used as a matrix resin. With the aforementioned pigment: PVA: zinc chloride=10:56:34 (weight ratio), the aforementioned pigment, PVA and zinc chloride (cross-linking agent) are dissolved in water to obtain a color-complementing layer whose concentration of the aforementioned pigment is 1.1 g / L Use coating fluid.

[0131] (making of complementary color layer)

[0132] Next, the above-mentioned coating liquid was dripped onto the first protective layer (glass plate), and applied under the conditions of 1000 times / minute×30 seconds by the spin coating method to form a coating film, and allowed to dry, Thereby cross-...

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Abstract

A color correction filter that while inhibiting any drop of luminance of image display apparatus, removes intermediate color light to thereby attain an enhancement of color tone expression of the image display apparatus, and that excels in durability. The color correction filter is color correction filter (10) characterized in that it has color correction layer (11) and two protective layers (12), the color correction layer (11) containing a J-aggregate of dye, the dye being at least one dye selected from the group consisting of cyanine, merocyanine, squarylium and porphyrin, and that the color correction layer has a half-value width of maximum absorption peak ranging from 5 to 30 nm, and that the two protective layers (12) are provided on both major surfaces of the color correction layer (11), respectively.

Description

technical field [0001] The invention relates to a color complementary color filter, an image display device and a liquid crystal display device. Background technique [0002] In recent years, a liquid crystal display device that forms an image by controlling light emitted by a light source device such as a cold cathode tube or a light emitting diode (LED) through a liquid crystal panel has been developed and put into practical use. In the liquid crystal display device, in order to uniformly distribute the light from the light source device over the entire display surface, the light guide plate overlaps the liquid crystal panel in parallel and is arranged on an optical path connected to the light source device. The light source device is disposed beside the light guide plate, or on the opposite side of the light guide plate to the liquid crystal panel. [0003] Figure 5 The configuration of a conventional liquid crystal display device is shown in a cross-sectional view of F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/22G02F1/1335
CPCG02B5/223G02F1/133509C09K2323/031G02B5/22G02F1/1335
Inventor 坂本亨枝长泽德
Owner NITTO DENKO CORP
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