Abstract: A flexible liquid crystal Fresnel lens is provided that may realize a lens using a polymer thin film substrate, so that it may provide the same electro-optical characteristics irrespective of polarization of light incident on a lens, and provide flexible characteristics and high image quality. The flexible liquid crystal Fresnel lens includes a liquid crystal layer formed between an upper substrate and a lower substrate in which a Fresnel region pattern is formed, wherein the lower substrate and the upper substrate may respectively include a first substrate and a second substrate including a transparent and flexible material while having a birefringent index, optical axes of the lower substrate and the upper substrate may be perpendicular to each other, and optical axes respectively forming an angle of 45° with respect to the lower substrate and the upper substrate may be formed in the liquid crystal layer.

Abstract: A flexible liquid crystal Fresnel lens is provided that may realize a lens using a polymer thin film substrate, so that it may provide the same electro-optical characteristics irrespective of polarization of light incident on a lens, and provide flexible characteristics and high image quality. The flexible liquid crystal Fresnel lens includes a liquid crystal layer formed between an upper substrate and a lower substrate in which a Fresnel region pattern is formed, wherein the lower substrate and the upper substrate may respectively include a first substrate and a second substrate including a transparent and flexible material while having a birefringent index, optical axes of the lower substrate and the upper substrate may be perpendicular to each other, and optical axes respectively forming an angle of 45° with respect to the lower substrate and the upper substrate may be formed in the liquid crystal layer.

Abstract: Provided is a method of forming metal-lines having high conductivity on a flexible substrate, including (a) forming a buffer layer on a first substrate, (b) forming metal-lines by printing a metal-nanoparticle-ink on the buffer layer, (c) sintering the metal-nanoparticle-ink through thermal treatment, (d) forming supporting-members between the metal-lines and the first substrate by etching the buffer layer by using a etching solvent and controlling an etching time so that a portion of the buffer layer is not etched, (e) picking up the metal-lines from the first substrate by using a stamp in the state where a pattern of the metal-lines is fixed and arranged by the supporting-members, and (f) transferring the picked-up metal-lines to a second substrate, wherein the first substrate is a heat resistant substrate which is not deformed at a sintering temperature of the metal-nanoparticle-ink, and the second substrate is a flexible substrate.

Abstract: An organic electronic device including: a first layer including a conductive or semiconductive organic material; a second layer including a conductive or semiconductive inorganic material, and in contact with the first layer; and an interface layer between the first layer and the second layer, wherein the interface layer includes a conductive or semiconductive organic material and a conductive or semiconductive inorganic material.

Abstract: An organic electronic device including: a first layer including a conductive or semiconductive organic material; a second layer including a conductive or semiconductive inorganic material, and in contact with the first layer; and an interface layer between the first layer and the second layer, wherein the interface layer includes a conductive or semiconductive organic material and a conductive or semiconductive inorganic material.