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Polymerizable liquid crystal composition for brightness enhancement film

A technology of liquid crystal composition and polymeric liquid crystal, which is applied in the direction of liquid crystal materials, chemical instruments and methods, polarizing elements, etc., and can solve the problems of short service life, easy deterioration of products, yellowing, etc.

Active Publication Date: 2015-11-18
JIANGSU HECHENG ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the liquid crystal monomer and chiral agent used contain alkyne structure, the product is easy to deteriorate and cause yellowing, and the service life is short
[0016] Patent CN103409145A provides a polymerizable liquid crystal formula, in which some monomers also contain alkyne structures, which are also easy to cause yellowing and have a short service life

Method used

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  • Polymerizable liquid crystal composition for brightness enhancement film
  • Polymerizable liquid crystal composition for brightness enhancement film
  • Polymerizable liquid crystal composition for brightness enhancement film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A liquid crystal composition comprising a compound of the following structure is prepared:

[0054]

[0055] The liquid crystal composition obtained above was cured and irradiated with sunlight for 10 days without yellowing.

[0056] The liquid crystal composition is liquid at normal temperature and can be coated and processed at normal temperature.

[0057] The normal temperature liquid state of the liquid crystal composition can be kept for 5 days without precipitation, and the compatibility is good.

Embodiment 2

[0059] A liquid crystal composition comprising a compound of the following structure is prepared:

[0060]

[0061]

[0062] The liquid crystal composition obtained above was cured and irradiated with sunlight for 10 days without yellowing.

[0063] The liquid crystal composition is liquid at normal temperature and can be coated and processed at normal temperature.

[0064] The normal temperature liquid state of the liquid crystal composition can be kept for 5 days without precipitation, and the compatibility is good.

Embodiment 3

[0066]

[0067] The liquid crystal composition obtained above was cured and irradiated with sunlight for 10 days without yellowing.

[0068] The liquid crystal composition is liquid at normal temperature and can be coated and processed at normal temperature.

[0069] The normal temperature liquid state of the liquid crystal composition can be kept for 5 days without precipitation, and the compatibility is good.

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Abstract

The invention provides a polymerizable liquid crystal composition. The polymerizable liquid crystal composition comprises 10-80wt% of a bifunctional polymerizable liquid crystal, 10-60wt% of a monofunctional polymerizable liquid crystal, and 0.1-30wt% of a chiral polymerizable liquid crystal. The polymerizable liquid crystal composition has the advantages of low cost, normal temperature processing, no compatibility problem, difficult yellowing and long service life, and can be used in the field of brightness enhancement films.

Description

technical field [0001] The invention relates to a polymerizable liquid crystal composition and its application in optical films. Background technique [0002] Backlight technology is one of the core technologies of TFT-LCD, accounting for 25% to 35% of the total cost of TFT-LCD. The light enhancement film accounts for 30% to 40% of the cost of the backlight system. At present, people put forward higher requirements for low power consumption and long-time standby of liquid crystal displays. As we all know, liquid crystal itself does not emit light, and needs a backlight to support light emission. The brightness of LCD affects the image quality to a certain extent. However, the backlight system accounts for a high proportion of the power consumption of the entire host (the power consumption of the LCD screen of the notebook computer is about 6.5W, of which the power consumption of the backlight system is about 5W, and the power consumption of the display driver is about 1.5W...

Claims

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Application Information

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IPC IPC(8): C09K19/46C09K19/20C09K19/34C09K19/30C09K19/38G02B5/30
Inventor 黄达纪光霞王素青谭玉东
Owner JIANGSU HECHENG ADVANCED MATERIALS
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