Organic EL display device

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United States of America Patent

PATENT NO 9250372
APP PUB NO 20150219816A1
SERIAL NO

14689837

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An organic EL display device including a substrate, a transparent electrode, a luminescent layer, and a metal electrode layer in this order from a light emission side, a circularly polarizing plate disposed on the light emission side of the substrate, the circularly polarizing plate including a polarizing film and phase difference films that stacked on each other. The phase difference film includes a resin composition (A) containing polystyrene-based polymer having a syndiotactic structure and polyarylene ether, a ratio of the polystyrene-based polymer having the syndiotactic structure with respect to the polyarylene ether in the resin composition (A) is 65:35 to 55:45, being a weight ratio of (the polystyrene-based polymer having the syndiotactic structure) with respect to (the polyarylene ether), the phase difference film satisfies a relation Re450550650, and an Nz coefficient of the phase difference film at a wavelength of 550 nm is −0.25 to −0.05.

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Patent Owner(s)

  • ZEON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Kohei Tokyo, JP 28 84
Hatano, Taku Tokyo, JP 26 150
Kinohira, Tomokazu Tokyo, JP 3 8
Morita, Takashi Tokyo, JP 119 1323
Yamanaka, Shunsuke Tokyo, JP 27 168

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