Samsung Display Co., Ltd.

Yeong Rong Park

Baek Kyun Jeon

Suk Hoon Kang

Mi Hwa Lee

Jun Woo Lee

Ji Hye Lee

Jun-Woo Lee

Dong Chan Kim

Won Jong Kim

Yoon Hyeung Cho

Dong Kyu Seo

Hoi-Lim Kim

Sang Hee Yu

Ji Young Moon

Myung Chul Yeo

Hyung Seok Jang

Pil Ho Huh

A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.

Photoalignment agent and liquid crystal display device including the same

A light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; and an electron transporting region positioned between the second electrode and the emission layer, wherein the electron transporting region includes a tellurium compound of a rare earth metal.

Light emitting diode and display device including the same

A liquid crystal photoalignment agent is provided. The liquid crystal photoalignment agent is a copolymer of a cyclobutane dianhydride ('CBDA') and a CBDA derivative.

Liquid crystal photoalignment agent, liquid crystal display device including the same, and method of manufacturing the same

A photoalignment agent is provided. The photoalignment agent includes a copolymer of at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and a realignment property diamine, wherein two or more aromatic rings in the realignment property diamine are connected by an ester group.

Photoalignment agent, liquid crystal display device including the same, and method of manufacturing the same

Provided is a liquid crystal display that includes: a first substrate; a thin film transistor disposed on the first substrate; a first electrode connected to the thin film transistor; and a first alignment layer disposed on the first electrode. The first alignment layer is formed by polymerizing a diamine and at least one of cyclobutane dianhydride (CBDA) and a cyclobutane dianhydride (CBDA) derivative. A decomposition efficiency representing a change in imidization ratio included before and after light exposure of the first alignment layer is in a range of 10% to 30%.

Liquid crystal display and method of manufacturing the same

A method of manufacturing a photo-alignment layer, includes: disposing a polymer material on a substrate; pre-baking the polymer material disposed on the substrate; irradiating a light to the pre-baked polymer material, to photo-align the pre-baked polymer material; and thermal-treating the irradiated pre-baked polymer material, to harden the irradiated pre-baked polymer material. The thermal-treating includes a first thermal-treatment, and a second thermal-treatment at a higher temperature than the first thermal-treatment.

Method of producing photo-alignment layer of liquid crystal display

Growing community of inventors

Suwon-si, South Korea

Yeong Rong Park