Samsung Display Co., Ltd.

Sung-Young Choi

Minsoo Kim

Sang-Hoon Lee

Mugyeom Kim

Sungchul Kim

Gug Rae Jo

Seung-Yeon Chae

Seung-Won Park

Eunjung Kim

Yunjong Yeo

Daehwan Jang

Yong-Hwan Ryu

Hyungbin Cho

Hyunju Kang

Jihun Kim

Baehyoun Jung

A method of manufacturing a roll type imprint master mold including disposing a base layer on a substrate including a first area and a second area adjacent to the first area, disposing an inorganic insulation layer on the base layer, forming a first mask pattern and a first resin pattern in the first area, forming a pattern layer by etching the inorganic insulation layer using the first resin and the first mask patterns as a mask, removing the first resin and the first mask patterns, forming a second mask pattern and a second resin pattern in the second area, forming a pattern layer by etching the inorganic insulation layer using the second resin and the second mask patterns as a mask, removing the second resin and the second mask patterns, separating the base layer from the substrate, and attaching the base layer onto a roll body.

Roll type imprint master mold, method of manufacturing the same, and imprint method using the same

A display device may include a first transistor, a first electrode, a second electrode, a first intermediate layer, and a first changeable layer. The first electrode is electrically connected to the first transistor. The second electrode overlaps the first electrode. The first intermediate layer is positioned between the first electrode and the second electrode and may emit first light when the first electrode and the second electrode generate a first electric field. The first changeable layer, which overlaps the first electrode, may have a first transmittance value when the first electrode and the second electrode generate the first electric field, and may have a second transmittance value when the first electrode and the second electrode do not generate the first electric field. The second transmittance value is unequal to the first transmittance value.

Display device

A press roller for imprint method including: a roller body having a cylindrical shape extending in a first direction; an energy generating part disposed on a curved surface of the roller body, the energy generating part including a plurality of energy generating units configured to be individually controlled to emit energy; and a compensation layer disposed on the energy generating part, the compensation layer including a material that expands in volume when the energy is applied.

Press roller and imprint method using the same

Growing community of inventors

Hwaseong-si, South Korea

Sung-Young Choi