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Optical sheet

An optical sheet, a mathematical technology, applied in the field of optical sheets, which can solve problems such as being susceptible to external impact damage

Inactive Publication Date: 2014-12-31
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of such an optical sheet dispersed with inorganic nanoparticles, there is generally a defect that it is easily damaged by external impact.

Method used

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Examples

Experimental program
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Effect test

Embodiment approach

[0132] Examples of the present invention will be described in detail below, but the present invention is not limited to the following examples.

[0133] Manufacture of Acrylate Oligomers

Synthetic example 1

[0135] Add toluene 500g, triethylamine 14ml, bisphenol A bischloroformate (Aldrich company) 39.3g (0.1 mole) and polyethylene glycol acrylate (Aldrich company, number average molecular weight 375) in the reflux reactor that is full of nitrogen. ) 75.0g (0.2 moles), reacted at 50°C for 24 hours, then separated the generated salt by centrifugation, and then removed the solvent and unreacted substances by distillation under reduced pressure, thereby producing acrylic acid represented by chemical formula 1 Ester oligomer, wherein n=2; R is H; x=2; y=z=0; a is 9; b=c=0; 2 and R 8 for-OCH 2 -, and R 5 , R 11 for CH 3 , the rest of R(R 1 , R 3 , R 4 , R 6 , R 7 , R 9 , R 10 , R 12 ) is H.

Synthetic example 2

[0137] After adding 200 g of toluene, 9.4 g of phenol (Aldrich Company), 28.8 g of butylene oxide (Aldrich Company) and 0.05 g of benzyltriethylammonium chloride in a nitrogen-filled reflux reactor, react at 90° C. for 24 hours 15.51 g of isocyanoethyl methacrylate (Aldrich Company) was added in the product obtained, and 0.05 g of dibutyltin dilaurate (Aldrich Company) was added as a catalyst, and then reacted at 60° C. for 24 hours, and the Removing unreacted matter and solvent by distillation, thereby producing the acrylate oligomer represented by Chemical Formula 1, wherein n=1; R is CH 3 ; x=4; y=z=0; a=4; b=c=0; Y is R in chemical formula 3 1 for -CH 2 NHC(=O)-, and the rest R 2 to R 6 for H.

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Abstract

The present invention relates to an optical sheet used in a liquid crystal display device, and relates to an optical sheet which comprises a resin curing layer made of a curable resin composition comprising metal oxide nanoparticles, and thus is easy to handle and not liable to damage from external shocks, and can prevent reduction in luminance due to damage and at the same time achieve a high refractive index.

Description

technical field [0001] The invention relates to an optical sheet used for a liquid crystal display (LCD, Liquid Crystal Display). Background technique [0002] The LCD used as an optical display element adjusts the light transmittance of an external light source and displays images in an indirect light-emitting manner. Therefore, the backlight unit as a light source device is an important component that determines the characteristics of an LCD. [0003] In particular, with the development of the technology for manufacturing LCD panels, the requirements for ultra-thin high-grayscale LCD displays are getting higher and higher, so various attempts have been made to increase the grayscale of the backlight unit. In liquid crystal displays such as monitors, PDAs (Personal Digital Assistant), and notebook computers, whether to use lower energy to display higher gray levels has become a standard for judging the excellence of LCDs. Therefore, the front gray scale of the LCD is very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J7/04G02B1/10G02B5/04G02F1/13357
CPCG02B5/045G02B1/04G02B1/10Y10T428/24Y10T428/24479Y10T428/24893C08L23/00C08L33/08C08L69/00C08J7/04C08K5/101C08K3/22
Inventor 黃弘九金炅钟申宜英朴昌远金泰京金秀知
Owner KOLON IND INC
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