Photosensitive resin and process for producing microlens

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United States of America Patent

PATENT NO 8940470
SERIAL NO

12451474

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Abstract

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A material for a microlens having heat resistance, high resolution and high light-extraction efficiency is provided. A positive resist composition comprises an alkali-soluble polymer containing a unit structure having an aromatic fused ring or a derivative thereof, and a compound having an organic group which undergoes photodecomposition to yield an alkali-soluble group. The positive resist composition has coating film properties of a refractive index at a wavelength of 633 nm of 1.6 or more and a transmittance at wavelengths of 400 to 730 nm of 80% or more. A pattern forming method comprises applying the positive resist composition, drying the composition, exposing the composition to light, and developing the composition.

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Patent Owner(s)

  • NISSAN CHEMICAL INDUSTRIES, LTD.;NISSAN CHEMICAL INDUSTRIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kishioka, Takahiro Funabashi, JP 83 326
Negi, Takayuki Funabashi, JP 1 3
Sakaguchi, Takahiro Funabashi, JP 88 756

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