Samsung Display Co., Ltd.

Yonsei University

Dongjin Semichem Co., Ltd.

National Rehabilitation Center

Ji Eun Cho

Joon Ho Shin

Byung Hoon Kang

Woo Jin Cho

Hee Kyun Shin

Hyosun Kim

Youra Kim

Dong Kyun Seo

Seung Jun Moon

Jun Ho Sim

Kyu Soon Shin

Hyungsuk Hwang

Jeong Hyeon Park

Hogene Kim

Do Hoon Koo

Hee Won Seo

Sun Chan Park

Sang Chul Chong

Jeung Hwan Choi

Cheong Il Kim

Sang Woo Cho

A display device includes a driving frequency calculator configured to divide output image data into central, intermediate, and peripheral images respectively corresponding to central, intermediate, and peripheral visual field regions, calculate spatial frequencies of the central image, the intermediate image, and the peripheral image, calculate critical flicker frequencies of the central visual field region, the intermediate visual field region, and the peripheral visual field region based on the spatial frequencies and based on viewing angles of the central visual field region, the intermediate visual field region, and the peripheral visual field region, and determine driving frequencies of the central visual field region, the intermediate visual field region, and the peripheral visual field region based on the critical flicker frequencies, and a display panel configured to display an image based on the output image data and based on the driving frequencies.

Display device, method for driving the same, and head-mounted display apparatus

The present disclosure is directed to a coating composition including a graphene oxide and a solvent. At least one of a carboxyl group and an epoxide group of the graphene oxide is functionalized by an amine. The amine has an activation energy to an epoxide group of the graphene oxide of about −3 kcal/mol to about 8 kcal/mol. A method of forming a stacked structure using the coating composition is provided. A method of manufacturing a display device using the coating composition is provided.

Coating composition including functionalized graphene oxide, method for forming stacked structure using the same and method for manufacturing display device using the same

The present invention addresses the technical problem of providing an ankle muscle resistance-training apparatus which induces an angle change of the ankle while the ankle is actively moving, and can improve strength of the ankle muscle by applying resistance force to the ankle movement. To this end, the ankle muscle resistance-training apparatus according to the present invention comprises: a support member; a first movement guiding shaft; an intermediate member; a second movement guiding shaft; a foot support; a first resistance force application part; and a second resistance force application part. The first resistance force application part is linked with the first movement guiding shaft and applies resistance force of an adjustable intensity against the active ankle movement of a user made with respect to the first movement guiding shaft in a state in which the foot is placed on the foot support, and the second resistance force application part is linked with the second movement guiding shaft and applies resistance force of an adjustable intensity against the active ankle movement of a user made with respect to the second movement guiding shaft in the state in which the foot is placed on the foot support.

Ankle muscle resistance-training apparatus

Growing community of inventors

Seoul, South Korea

Ji Eun Cho