Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Seon Hee Shin

Il Jin Kim

Ji Ho Kim

Ik Hwan Cho

Sung Hyun Mun

Gwang Hwan Lee

Jae Hyun Han

Hyung Rang Moon

Byeong Do Kwak

Woo Jin Lee

Jee Hee Kim

Eun Hwa Lee

Ji Won Kang

Yong Tae Kim

Jin Young Lee

Chung Kun Cho

In Chul Hwang

An adhesive film has an average slope of about −9.9 to about 0, as measured over a temperature range of about −20° C. to about 80° C. in a graph depicting a temperature-dependent storage modulus distribution of the adhesive film where the x-axis represents temperature (° C.) and the y-axis represents storage modulus (kPa). The adhesive film also has a storage modulus at about 80° C. of about 10 kPa to about 1,000 kPa.

Adhesive composition, adhesive film prepared from the same and display member including the same

An adhesive film and a display member including the same are disclosed. The adhesive film is formed of an adhesive composition including: a copolymer of a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles. The adhesive film has a creep at −20° C. of about 50 μm to about 100 μm and a gel fraction of about 50% to about 75%.

Adhesive film and display member comprising the same

An adhesive film and a display member including the same are disclosed. The adhesive film is formed of an adhesive composition including: a copolymer of a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles. The adhesive film has a creep at &#x2212;20&#xb0; C. of about 50 &#x3bc;m to about 100 &#x3bc;m and a gel fraction of about 50% to about 75%.

An adhesive film has an average slope of about &#x2212;9.9 to about 0, as measured over a temperature range of about &#x2212;20&#xb0; C. to about 80&#xb0; C. in a graph depicting a temperature-dependent storage modulus distribution of the adhesive film where the x-axis represents temperature (&#xb0; C.) and the y-axis represents storage modulus (kPa). The adhesive film also has a storage modulus at about 80&#xb0; C. of about 10 kPa to about 1,000 kPa.

An adhesive film, an optical member including the same, and an optical display including the same are provided. The adhesive film is formed of a monomer mixture including a hydroxyl group-containing (meth)acrylate and an alkyl group-containing (meth)acrylate, and has a bubble generation area ratio of 0%, as measured on a specimen (length&#xd7;width: 13 cm&#xd7;3 cm) by repeating the described cycle 10 times, in which the specimen is prepared by sequentially stacking a polyethylene terephthalate film (thickness: 50 &#x3bc;m), the adhesive film (thickness: 100 &#x3bc;m) and a polyethylene terephthalate film (thickness: 100 &#x3bc;m) to have a three-layer structure, and is bent towards the PET film (thickness: 50 &#x3bc;m) such that the specimen is placed between frames having a gap of about 1 cm therebetween and the length of the specimen is halved and the cycle is sequentially accomplished for 24 hours.

Adhesive film, optical member comprising the same and optical display comprising the same

A flexible display device of the present invention comprises a photoelectric element part; a first adhesive film formed on the photoelectric element part; a touch function part formed on the first adhesive film; a second adhesive film formed on the touch function part; and a window film formed on the second adhesive film; wherein the first adhesive film or the second adhesive film has an average slope of about &#x2212;9.9 to about 0 at &#x2212;20&#xb0; C. to 80&#xb0; C. based on x-axis for the distribution of storage modulus versus temperature in the function of x-axis of temperature (&#xb0; C.) and y-axis of storage modulus (KPa) and wherein the first adhesive film or the second adhesive film has a storage modulus of about 10 KPa or more at 80&#xb0; C.

Flexible display device

Disclosed is a flexible display apparatus. The flexible display apparatus includes a display part, a first adhesive film, an optical film, a second adhesive film, and a window film sequentially stacked, and the second adhesive film has a water-vapor permeability of about 200 g/m&#xb7;24 hr or less, and the first adhesive film has a lower restoration force than the second adhesive film, as calculated by the Equation B set forth herein.

Flexible display apparatus

An adhesive composition including a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and organic particles, the organic particles having an average particle diameter of about 10 nm to about 400 nm.

Growing community of inventors

Suwon-si, South Korea

Seon Hee Shin