Sk Innovation Co., Ltd.

Sk Ie Technology Co., Ltd.

Jong Nam Ahn

Jin Su Park

Byoung Sun Ko

Tae Sug Jang

Ho Chul Yoon

Keon Hyeok Ko

Hye Jin Kim

Sang Yoon Park

Je Seung Park

A Ran Hwang

The present invention relates to a window cover film and a flexible display panel including the same. More particularly, the present invention relates to a window cover film including a base layer and a hard coating layer, and a flexible display panel including the same.

Window cover film and flexible display panel including the same

Provided is a window cover film and a flexible display panel including the same. More particularly, a window cover film including a substrate layer and a hard coating layer and a flexible display panel including the same are provided.

The present invention relates to a window cover film and a flexible display panel including the same. More particularly, the present invention relates to a window cover film including a base layer and a hard coating layer, and a flexible display panel including the same. Since the window cover film of the present invention has high surface hardness, flexibility, the excellent bending properties, the window cover film may be restored to the original form without permanent deformation and/or damage of the hard coating layer and the window cover film even though a predetermined deformation is repeated.

Provided are a polyimide-based film having excellent visibility, a film for a cover window, and a display device including the same.

Polyimide-based film, film for cover window, and display device including the same

Provided is a hard coating film. The hard coating film includes a base layer and a hard coating layer disposed on the base layer and having a pencil hardness of 4H or higher. A surface elongation at break of the hard coating film falls within a predetermined range, as measured by a certain method. The hard coating film shows excellent durability under high-temperature/high-humidity conditions, has no microcracks formed after repeated folding, and shows excellent pencil hardness.

Hard coating film and flexible display panel including the same

The present invention relates to a new window cover film protecting a flexible display panel. Specifically, provided is a window cover film protecting a surface of a display device, the window cover film including a protective film formed on a base layer or a hard coating layer of a hard coating film having the base layer and the hard coating layer, and having no problem that the window cover film cannot be used as a display window cover film because a part of the protective film is not peeled off due to static electricity generated in the protective film, the base layer, or the hard coating layer when the protective film is peeled off, and the protective film remains on the base layer or a hard coating layer or the hard coating layer is partially or entirely peeled off.

Provided are a polyimide-based film, a window cover film, and a display device including the same. In detail, provided is a polyimide-based film whose solubility in an ethyl cellosolve solvent satisfies the following Equation 1: wherein FWis a weight of an initial film before being immersed in a solvent, and FWis a weight of the film measured after the film is immersed in an ethyl cellosolve solvent, left at 60&#xb0; C. for 2 hours, and cooled to room temperature, the solvent is removed, and the film is dried at 80&#xb0; C. for 4 hours.

Polyimide-based film and flexible display panel including the same

The present invention relates to an optical laminate and a flexible display panel including the same, and more particularly, to an optical laminate including a self-restoration barrier adhesive layer and a flexible display panel including the same.

Optical laminate and flexible display panel including the same

Provided is a hard coating film in which a hard coating layer having a water contact angle of 90&#xb0; or less, a conductive layer, and a low refractive index layer are laminated on a substrate, the film having excellent hardness, anti-curling property, antireflection performance, antifouling performance, and antistatic performance.

Antireflection hard coating film and preparation method thereof

Provided is a hard coating film in which a hard coating layer having a water contact angle of 90&#xb0; or less, a high refractive index layer, and a low refractive index layer are laminated on a substrate, the film having suppressed curling, and excellent hardness and antireflection performance.

Provided is a composition for forming a hard coating layer, which includes an epoxy siloxane resin, a crosslinking agent including a compound having an alicyclic epoxy group, a thermal initiator including a compound represented by a specific chemical formula, a photoinitiator, a fluorine-substituted (meth)acrylate compound, and silica nanoparticles surface-modified with a fluorine compound, and forms a hard coating layer having excellent hardness and antifouling property and suppressing curling.

Composition for forming hard coating layer, preparation method of hard coating film, and hard coating film prepared using the same

The present invention relates to a window cover film and a flexible display panel including the same. More particularly, the present invention relates to a window cover film including a base layer, a hard coating layer, and an anti-fingerprint layer, and a flexible display panel including the same.

Provided is an antistatic polyimide-based film. More particularly, as an antistatic polyimide-based film for a window cover for protecting a surface of a display device, a window cover film having a protective film formed on the polyimide-based film provides an improvement to a problem of not being used as a film for a display window cover because a portion of the protective film remains on a base layer or a hard coating layer without being peeled off due to static electricity in the protective film or the base layer, or a hard coating layer, or the hard coating layer is peeled off with some or all of the protective film when the protective film is peeled off.

Antistatic polyimide-based film and flexible display panel using same

Provided is a composition for forming a hard coating layer, which includes an epoxy siloxane resin, a crosslinking agent including a compound having an alicyclic epoxy group, a thermal initiator including a compound represented by Chemical Formula 2, and a photoinitiator to decrease curls and increase hardness of the hard coating film.

Composition for forming hard coating layer, method of preparing hard coating film and hard coating film prepared by using the same

Provided is a hard coating film including a polyamideimide substrate layer and a hard coating layer, each of which has a predetermined refractive index, with a difference in the refractive index between those layers being 0.05. The substrate layer has a tensile modulus of 3 to 7 GPa, at a thickness of 80 &#x3bc;m, as measured according to ASTM D111. The present invention relates to a hard coating film having improved mechanical and optical properties.

Growing community of inventors

Daejeon, South Korea

Jong Nam Ahn