Cheil Industries Inc.

Lg Electronics Inc.

Lg Hausys, Ltd.

Lms Co., Ltd.

Kt Corporation

Lotte Chemical Corporation

Lotte Advanced Materials Co., Ltd.

Msway Technology Co., Ltd.

Min Soo Lee

Sang Hyun Hong

Beom Jin Jeon

Yong Kim

Joo Young Kim

Jin Hwan Kim

Jin Ho Kim

Sang Hwa Lee

Beom Jun Joo

Bong Jae Lee

Si Young Lee

Byun Kun Lee

Gun Soo Chung

Youn Woo Nam

Seon Hui Lee

Eric Arifin

Yong Won Choi

Jeonghwan Shin

Kyung-Woon Lee

Jin Hwan Choi

Seon Ae Lee

Seon Ho Yang

Ho Seong Na

Chang Hong Ko

Jeong Og Choi

Su Hak Bae

Chan Moo Park

Yeong Deuk Seo

Im Hyuck Bae

Yang Il Kim

Jeong Hwan Ku

Cheng Zhe Huang

Thanh Kieu Giang

Woo Joo Lah

Thi Thuy Hang Nguyen

Thi Hai Vo

Ik Hyun Yu

Sang Hyen Hong

Boem Jun Joo

Seok Bong Lee

Won Gi Lee

Hong Seok Chin

Jong Chun Park

Provided are a method and a device for quantum key distribution. The quantum key distribution device may be connected to another quantum key distribution device through a quantum channel and distribute a quantum cryptography key. The device may include an optical unit having an optical element to transmit information, and a post-processor for calculating a quantum cryptography key by processing a random number generated by the optical unit. The device may include at least one of the optical unit including a plurality of unit optical modules, the post-processor having a plurality of unit post-processing modules, and the optical unit having a plurality of unit optical modules and the post-processor having a plurality of unit post-processing modules.

Method and device for quantum key distribution

A low-resistance conductive thin film is disclosed. The present invention provides a low-resistance conductive thin film including: a substrate; a first capping layer disposed on the substrate; a second capping layer disposed on the first capping layer; a metal layer disposed on the second capping layer; a third capping layer disposed on the metal layer; and a fourth capping layer disposed on the third capping layer.

Low resistance conductive thin film and fabrication method for the same

Provided are a quantum key distribution method, device, and system. The quantum key distribution system may include a transmitter configured to split an optical signal into a first optical signal passing through a first path (P) and a second optical signal passing through a second path (P), which is longer than the first path (P), and to sequentially transmit the first optical signal and the second optical signal; and a receiver configured to receive the first optical signal and the second optical signal incident through a quantum channel and transmit the first optical signal and the second optical signal back to the transmitter through the quantum channel after passing through a polarization-dependent element, being reflected by a Faraday mirror, and passing through the polarization-dependent element again.

Quantum key distribution method, device, and system

Provided are a single photon detector and an operation method thereof. The single photon detector may include a gate signal generator for generating a gate signal having a first pulse width (ΔP) with respect to a first time point (t); and a first photon detector for detecting the single photon while operating in a Geiger mode by receiving the gate signal, and outputs a photon detection signal at a second time point (t), wherein the first photon detector outputs the photon detection signal at the second time point (t) spaced apart at a predetermine time interval (ΔT) from the first time point (t).

Single photon detector, and operation method

A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a thermoplastic resin including a polyester resin; about 50-150 parts by weight of glass fibers; and about 1-10 parts by weight of a polyether-ester copolymer, wherein the polyether-ester copolymer has a melt volume flow rate (MVR) of about 30-120 cm/10 min as measured under conditions of 230&#xb0; C. and 2.16 kg based on ISO 1133. The thermoplastic resin composition is excellent in impact resistance, appearance characteristics, metal joining properties, and the like.

Thermoplastic resin composition and molded product produced therefrom

The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.

Optical product and optical filter including same

A thermoplastic resin composition of the present invention comprises: about 5 wt % to about 35 wt % of a modified polyaryletherketone resin comprising a repeat unit represented by chemical formula 1; about 5 wt % to about 35 wt % of a polyether ether ketone resin; about 20 wt % to about 40 wt % of a polyphenylsulfone resin; and about 15 wt % to about 50 wt % of glass fibers. The thermoplastic resin composition has good properties in terms of adhesion to metals, impact resistance, and so on.

Thermoplastic resin composition and molded article formed therefrom

A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a polyester resin; about 15 to about 100 parts by weight of glass fibers; and about 2 to about 20 parts by weight of a modified olefin copolymer, the modified olefin copolymer comprising an epoxy modified olefin copolymer and a maleic anhydride modified olefin copolymer, wherein the weight ratio of the epoxy modified olefin copolymer and the maleic anhydride modified olefin copolymer is about 1:0.3 to about 1:3. The thermoplastic resin composition has excellent impact resistance, chemical resistance, and the like.

Thermoplastic resin composition and molded product manufactured therefrom

Disclosed are a method of manufacturing graphene and an apparatus therefor. The method of manufacturing graphene and the apparatus therefor according to the present disclosure allow production of high-quality graphene in a simple manner in a short time without addition of a separate additive.

Method of manufacturing graphene and apparatus therefor

An optical film for efficiently and uniformly diffuses and collects the light from mini LEDs or micro LEDs, the bead diffusion layer and the pattern diffusion layer of the first diffusion sheet are formed such that a first diffusion rate of the light on the one surface of the first diffusion sheet is higher than a second diffusion rate of the light on the other surface of the first diffusion sheet.

Optical film for mini LED or micro LED backlight unit

An optical filter comprising a light absorption layer and a near-infrared reflection layer, and an imaging device comprising the optical filter are provided. Wherein the light absorption layer has an absorption maximum in a wavelength range of 670 to 720 nm, a wavelength at which the near-infrared reflection layer has a light transmittance of 50% is in a range of 690 to 720 nm, and the optical filter satisfies the following Mathematical Formula 1:&#x394;*&#x2264;1.5&#x2003;&#x2003;[Mathematical Formula 1]

Optical filter, and imaging device comprising same

A polyester resin composition and a molded article produced using the same. The polyester resin composition includes: a crystalline polyester resin; a non-crystalline polyester resin; and glass fibers, wherein a weight ratio of the crystalline polyester resin to the non-crystalline polyester resin ranges from about 4:1 to about 1:1.

Polyester resin composition and molded article produced using the same

The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Biodegradable sheets having adhesive layer

The present invention relates to panels. The panels include a panel layer and a printed layer formed on the panel layer. The panel layer includes a polylactic acid (PLA) resin. The panels are environmentally friendly and biodegradable.

Biodegradable panels

The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Biodegradable sheets having foamed layer

Growing community of inventors

Anyang-si, South Korea

Min Soo Lee