Skc Co., Ltd.

Kyu-Hun Kim

Hyejin Kim

Heung Sik Kim

Sung Jin Chung

Jewon Yeon

Hak Soo Lee

Seungwon Lee

Jin Woo Lee

Dae Seong Oh

Young Min Heo

Sunhwan Kim

Dawoo Jeong

Sechul Lee

The optical multilayer film, which comprises a laminate in which a base layer, a primer layer, and a hard coat layer are sequentially laminated, has enhanced mechanical properties while preventing rainbow stains and a reduction in the visibility by adjusting the in-plane retardation of the base layer and the refractive indices of the respective layers. Thus, the optical component and the display device, which comprise the optical multilayer film, have excellent optical characteristics and can operate normally even in harsh environments.

Optical multilayer film, and optical component and display device comprising the same

One embodiment may provide a method for producing a polyimide film, the method comprising the steps of: polishing the surface of a casting body; producing a gel sheet by casting a precursor on the polished surface of the casting body, and drying same; and producing a polyimide film by heat-treating the gel sheet, wherein the roughness of the polished surface of the casting body is 0.1 nm to 160 nm, and when the area of the casting body onto which the precursor is casted is partitioned by 1 cm&#xd7;1 cm, the area corresponding to a defect reduction region is at least 90%, and the polyimide film has a yellowness of at most 3, a haze of at most 1%, a permeability of at least 88%, a modulus of at least 5.0 GPa and a surface hardness of at least HB.

Polyimide film and method for producing same

A resin film for laminated glass, laminated glass including the resin film, and a process for manufacturing the laminated glass are disclosed. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 &#x3bc;m and a maximum static friction coefficient at 20&#xb0; C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35&#xb0; C. is 40 to 310 &#x3bc;m/N.

Resin film for laminated glass, and laminated glass and preparation thereof

Embodiments relate to a resin film for laminated glass, laminated glass comprising the resin film, and a process for manufacturing the laminated glass. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 &#x3bc;m and a maximum static friction coefficient at 20&#xb0; C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35&#xb0; C. is 40 to 310 &#x3bc;m/N.

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Seoul, South Korea

Kyu-Hun Kim