Samsung Display Co., Ltd.

Amorepacific Corporation

Youngsuk Cho

Jaesik Kim

Jeongkuk Kim

Taemin Kang

Yoonkyun Hwang

Jihye An

Byungfhy Suh

Byungguen Chae

Dongwon Choi

Dajeong Lee

Sanghoon Han

Seunghan Park

The present specification describes an additive composition for preventing the precipitation of vitamin C in a cosmetic composition containing 15 wt % or more of vitamin C. The additive composition of the present invention comprises one or more of 3-O-ethyl ascorbic acid and caffeine as an active ingredient, and can thereby prevent precipitation of vitamin C even when a cosmetic composition is in cold storage. In addition, the additive composition according to the present invention can ameliorate the tingling irritation and stickiness that results from the inclusion of a high content of vitamin C.

Additive composition for preventing vitamin C precipitation

The present invention relates to an additive composition for cosmetics material containing vitamin-C, the additive composition improving the feel on the skin of vitamin-C which is an anti-oxidant. High vitamin-C content can cause stinging skin irritation or be sticky to the touch, but the additive composition according to the present invention, when used in cosmetics composition with high vitamin-C content, due to the oil, can reduce irritation and stickiness, as well as provide a moisturizing effect.

Additive composition for improving feel on skin of cosmetics material

Provided are a laser processing method capable of performing various types of processing while reducing a need to change components and method of manufacturing a display apparatus by using the laser processing method. The laser processing method includes: splitting a laser beam emitted from a laser beam source into a plurality of laser beams by using a laser beam splitter; and transmitting at least two of the plurality of laser beams through a position adjustment equipment that is on paths of the at least two laser beams in order to adjust a distance between the at least two laser beams by using a difference between a refractive index of an element of the position adjustment equipment and a refractive index of a peripheral environment.

Laser processing method and method of manufacturing display apparatus

Provided is a mask assembly, an apparatus, and a method of manufacturing a display apparatus using such mask assembly and apparatus. The mask assembly deposits a deposition material on a first pixel among a plurality of pixels disposed on a device substrate and including the first pixel and a second pixel includes a mask substrate, a molding layer stacked on the mask substrate and including a hole corresponding to a position of the second pixel, a blocking plate detachably mounted in the hole and configured to block the second pixel from the deposition material by covering the second pixel when the blocking plate is detached from the hole.

Mask assembly, apparatus, and method of manufacturing display device using the mask assembly

Provided are a mask assembly, an apparatus for manufacturing a display apparatus, and method of manufacturing a display apparatus. The mask assembly includes a mask frame and a mask sheet arranged on the mask frame. The mask sheet includes a pattern portion configured to allow a deposition material to pass through an opening of the pattern portion. The pattern portion is recessed from a surface of the mask sheet. In addition, an outermost edge of the pattern portion is uneven.

Growing community of inventors

Yongin-si, South Korea

Youngsuk Cho