Industrial Technology Research Institute

Jong-Lieh Yang

Shin-Shin Wang

Wen-Yih Liao

Hui-Ping Tsai

Chien-Liang Huang

Chii-Chang Lai

Tzuan-Ren Jeng

Ming-Chia Lee

Chuen-Fuw Yan

Wen-Ping Chu

Chien-Wen Chen

An-Tse Lee

Ching-Yu Hsieh

Jie-Hwa Ma

Shih-Hsien Liu

Kung-Lung Cheng

Chao-Wu Liaw

Chien-Wen Lin

Kuo-Yuan Hsu

Yi-Lang Tsai

Li-Chung Liang

An optical device is provided, which includes a first transparent substrate, a second transparent substrate, and a liquid-crystal material disposed between the first transparent substrate and the second transparent substrate. The liquid-crystal material includes a photo responsive material with a chemical structure of: wherein Ais Aand Aare independently X is halogen. R is H, Calkyl group, or Calkoxy group. R' is Calkyl group.

Photo responsive material and optical device

The invention provides dyes for optical disc recoding media, having the general formula: 

Dye and recording media utilizing the same

An indolestyryl compound. The indolestyryl compound has formula (I): 

Indolestyryl compound and high density recording media utilizing the same

A bis(indolestyryl) compound. The bis(indolestyryl) compound has formula (I): 

Bis (indolestyryl) compound and high density recording media utilizing the same

A bisstyryl compound. The bisstyryl compound has formula (I): 

Bisstyryl compound and high density recording media utilizing the same

Indolestyryl compounds and use thereof for a high density recording media and method for fabricating the same. The indolestyryl compounds exhibit strong absorbance in the visible light region (400&#x2dc;700 nm) of the spectrum, resistance to heat and light, high light sensitivity, and excellent solubility, resulting from their special chemical configuration. Furthermore, the indolestyryl compounds can be used as recording layer materials in high density recording media for matching a reading laser wavelength and enhancing the reflective index and carrier-to-noise ratio (CNR) of the high density recording media. Accordingly, the recording sensitivity and the readout characteristics of high density recording media comprising the indolestyryl compound according to the present invention can be improved.

Indolestyryl compound for use in recording media and method for fabrication thereof

The invention discloses new benzoindole styryl compounds and its use for a high-density optical recording medium. The invention uses the dyes of the new benzoindole styryl compounds to form the recording layer of high-density recording media. The new benzoindole styryl compounds are easy to prepare and purify, so they are cheaper when comparing to the compounds generally used in high-density optical recording media. The benzoindole styryl compounds has a maximum absorption for the light wavelength in the range of 500 nanometers to 700 nanometers. The benzoindole styryl compounds also have high sensitivity and chemical stability for light and heat. Using the new benzoindole styryl compounds to form a high-density optical recording medium can match up with the short-wavelength laser beam for high-density optical recording media and have the advantage of a stable quality.

Benzoindole styryl compounds and their uses in high-density recording media

The invention discloses new indolestyryl compounds and their uses for a high-density optical recording medium. The invention uses the new indolestyryl compounds to form the recording layer of a high-density recording medium. The new indolestyryl compounds are easy to prepare and purify, so they are cheaper when comparing to the compounds generally used in high-density optical recording media. The indolestyryl compounds have a maximum absorption for light wavelengths in the range of 500 nanometers to 700 nanometers. The indolestyryl compounds also have high sensitivity and chemical stability toward light and heat. Using the new indolestyryl compounds to form high-density optical recording media can match up with the short-wavelength laser beam for high-density optical recording media and have the advantage of a stable quality.

Indolestyryl compounds and their uses in high-density recording media

PPE copolymers comprise three repeating units. The PPE copolymers are polymerized with 2,6-DMP, dialkenylamide or dialkenylamine phenol, and another phenol derivative. A resin composition having a low cross-linking temperature is also disclosed, which comprises the PPE copolymer and a free radical initiator.

Growing community of inventors

Hsinchu, Taiwan

Jong-Lieh Yang