Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Cheil Industries Inc.

Sang Ah Gam

Myung Sup Jung

Hyung Jun Kim

Hyun-Seok Choi

Ji-Hoon Lee

Hye Young Kong

Kyu Yeol In

Kyoung Ah Oh

Moon Yeon Lee

Hee-kyung Kim

A compensation film includes a first retardation layer including a polymer having negative birefringence, and a second retardation layer including a liquid crystal having positive birefringence, where the first retardation layer has an in-plane retardation (R) of 320 nm to 1050 nm for incident light having wavelength of 550 nm, the second retardation layer has an in-plane retardation (R) of 180 nm to 910 nm for the incident light, an entire in-plane retardation (R) of the first and second retardation layers for the incident light is a difference between the in-plane retardations of the first and second retardation layers, an angle between slow axes of the first and second retardation layers is 85 to 95 degrees, and the entire in-plane retardation (R) of the first and second retardation layers for the wavelength of 450 nm, 550 nm and 650 nm satisfies R(450 nm)&#x3c;R(550 nm)&#x3c;R(650 nm).

Compensation film and optical film and display device

An optical film includes a polarization film including a polymer resin and a dichroic dye, and a phase delay layer disposed on the polarization film and including a liquid crystal.

Optical film, manufacturing method thereof, and display device

An optical film includes: a liquid crystal coating; and a base layer on the liquid crystal coating, wherein the liquid crystal coating has reversed wavelength dispersion and in-plane retardation for a reference wavelength ranging from 126 nm to 153 nm, and the base layer has in-plane retardation ranging from about 0 to about 50 nm and out-of-plane retardation ranging from about 0 nm to about 100 nm.

Multilayered optical film and display device including optical film

A compensation film includes: a first retardation layer including a polymer; a second retardation layer including a liquid crystal having positive birefringence; and a compensation layer including a liquid crystal having a vertical alignment property, where an angle between slow axes of the first and second retardation layers is in a range of about 85 to about 95 degrees, an entire in-plane retardation (R) of the first retardation layer, the second retardation layer and the compensation layer for wavelengths of 450 nm, 550 nm and 650 nm satisfy the following inequation: R(450 nm)&#x3c;R(550 nm)&#x3c;R(650 nm), an in-plane retardation (R) of the compensation layer for the incident light having a wavelength of about 550 nm is in a range of about zero to about 50 nm, and a thickness direction retardation (R) of the compensation layer for the incident light is less than zero.

Compensation film and optical film, and display device

Growing community of inventors

Seoul, South Korea

Sang Ah Gam