Ultraviolet light monomer compound and preparation method thereof, polymerizable composition, backlight module and liquid crystal display

A technique for polymerizing compositions and compounds, which is applied in the preparation of organic compounds, chemical instruments and methods, and preparation of carboxylate esters. The effect of good luminance value and strong enhancement effect

Active Publication Date: 2013-03-06
HUAWEI TEHCHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problem that the polymerizable composition in the prior art has a low refractive index, and when the coating formed by the polymer is used as a brightness enhancement film in a backlight module of a display, the brightness enhancement effect is poor

Method used

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  • Ultraviolet light monomer compound and preparation method thereof, polymerizable composition, backlight module and liquid crystal display
  • Ultraviolet light monomer compound and preparation method thereof, polymerizable composition, backlight module and liquid crystal display
  • Ultraviolet light monomer compound and preparation method thereof, polymerizable composition, backlight module and liquid crystal display

Examples

Experimental program
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Effect test

preparation example Construction

[0073] The preparation method of the polymerizable composition provided by the present invention can be obtained by directly mixing the components in the composition evenly. Preferably, in order to shorten the mixing time, the mixing is preferably performed at 40°C-80°C.

[0074] The present invention also provides a backlight module. The backlight module includes a brightness enhancement film, and the brightness enhancement film is a brightness enhancement film formed after the above-mentioned polymerizable composition is cured. The polymerizable composition of the present invention can be coated on a substrate (such as polyethylene terephthalate (PET)) and irradiated by ultraviolet rays to form a coating with a prism pattern to obtain an effective Brightness enhancing films formed from polymerizable compositions. Furthermore, a backlight module is fabricated by combining conventional components including lamp tubes, light guide plates and other various known optical films. ...

Embodiment 1-4

[0078] The raw materials used in embodiment 1-4 are as follows:

[0079] (a): Formula I 1 Monomer compounds shown:

[0080] Will React with ethylene glycol in DMF under nitrogen protection and heat to 80°C for 5 hours to obtain a pre-product, then add acrylic acid and heat to 75°C in toluene for reflux reaction for 2 hours to obtain the compound shown in formula I1;

[0081] (b): Photoinitiator I173 (purchased from Ciba Specialty Chemicals);

[0082] (c): Cross-linking agent SR294 (purchased from SARTOMER);

[0083] (d): Thinner PBA-001 (purchased from Shanghai Zhide Chemical);

[0084] Prepare the raw materials according to Table 1, mix the above raw materials together, and heat and stir at 50 ° C until a uniform and transparent colloidal polymer is formed. The colloidal polymer prepared above is coated on a polyethylene terephthalate (PET) substrate, cured by ultraviolet radiation to form a coating with a prism pattern, and the polymerizable composition is obtained. ...

Embodiment 5-8

[0091] The raw materials used in embodiment 5-8 are as follows:

[0092] (a): Formula II 1 Compound:

[0093] Will React with ethylene glycol in DMF and heat to 60°C for 8 hours under the protection of nitrogen to obtain the pre-product, then add acrylic acid and heat to 70°C in toluene for reflux reaction for 5 hours to obtain formula II 1 the indicated compound;

[0094] (b): Photoinitiator I184 (1-hydroxycyclohexylbenzophenone);

[0095] (c): Cross-linking agent SR351 (purchased from SARTOMER)

[0096] (d): Thinner PP-011 (o-phenylphenethoxyethyl acrylate)

[0097] The raw materials were prepared according to Table 3, the brightness enhancement film and the backlight module were prepared according to the same method as in Example 1, and the luminance test was performed. The results are shown in Table 4.

[0098] table 3

[0099] (a) (grams) (b) (grams) (c) (grams) (d) (grams) Example 5 0.5 0.4 2.5 6.5 Example 6 1.0 0.4 2.5 6.0 ...

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Abstract

The invention provides a polymerizable composition which comprises: A. at least one monomer compound which is selected from compounds shown in formula I or formula II, wherein formula I and formula II are shown in the specification, R1, R2, R3 and R4 are respectively and individually H, halogen, C1-C5 alkyl, benzyl, aromatic nucleus, C1-C4 alkyloxy, amino, substituted amino or acylamino, X, Y, and Z are respectively and individually H, OH or C1-C5 alkyl, m is an integer between 0 and 8; and B. an photoinitiator. The polymerizable composition has a higher refractive index, and can form a brightness enhancement film with satisfactory luminance. In addition, the invention also provides a preparation method of the monomer compound in the polymerizable composition, and a backlight module and a liquid crystal display with the brightness enhancement film.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to an ultraviolet light monomer compound, a preparation method thereof, a polymerizable composition, and a backlight module and a liquid crystal display prepared by using the ultraviolet polymerizable composition. Background technique [0002] Liquid Crystal Display (LCD) has gradually replaced the traditional cathode ray tube display with the advantages of lightness, thinness, shortness, smallness, low heat consumption, low power consumption, and no radiation, and is widely used in electroluminescent panels, laptops, etc. In desktop computers, word processors, desktop monitors, televisions, video cameras, etc. Generally speaking, the liquid crystal display is mainly composed of two parts: the panel and the backlight module. The panel includes conductive glass, liquid crystal, alignment film, color filter, polarizer, driver integrated circuit, etc. The panel itself does not em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/54C07C67/08C07D209/86C08F220/30C08F220/36C09D133/14G02F1/13357
Inventor 王韦达王武林
Owner HUAWEI TEHCHNOLOGIES CO LTD
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