Lg Electronics Inc.

Koun Park

Sangmo Koo

Eunseck Kang

Juchul Lee

Sanggeun Cho

Gukhwan An

Misun Lee

Kyungho Jung

Moongoo Choi

Jinwoo Sung

Dongwook Lee

Hongcheol Lee

Sooyeun Kim

Eunja Lim

The present disclosure is applicable to the technical field related to a secondary battery, and relates to, for example, a separator structure for the secondary battery, a method for preparing the same, and the secondary battery using the same. A separator structure disposed inside a secondary battery includes a porous support body including a first face and a second face, and a cellulose nano fiber subjected to an ionic surface treatment located on at least one of the first face and the second face of the support body.

Separator structure for secondary battery, method for making the separator, and the secondary battery using the same

The present invention relates to an electrochromic compound, and an electrochromic composition and an electrochromic device, including the same. The electrochromic compound according to the present invention may achieve excellent black coloring effects and excellent curing characteristics, and thus may be used advantageously in an electrochromic device.

Black electrochromic compound, and electrolyte-integrated radiation curable electrochromic composition and electrochromic device which contain same

The present invention relates to a nanostructure having an electrochromic material attached to the surface thereof, and a preparation method therefor. To this end, the present invention provides: a nanostructure comprising a metal oxide and having a structure comprising nanopores; and an electrochromic structure comprising an electrochromic material to be attached to the surface of the nanostructure. According to the present invention, the nanostructure has a surface area larger than that of conventional nanoparticles so as to enable more electrochromic materials to be attached thereto, and thus the electrochromic characteristics of an electrochromic device can be improved.

Electrochromic structure and preparation method therefor

A method according to the present disclosure may includes preparing a urea solution by dissolving urea in distilled water, adding phosphoric acid to the urea solution, adding pulp to the solution in which urea and phosphoric acid are dissolved, heating the solution such that the urea and the phosphoric acid each react with the pulp and preparing nanocellulose by washing the pulp which is completely reacted, and then grinding the pulp, in which a weight of the phosphoric acid is 10 to 50% based on a weight of the pulp.

Method for preparing nanocellulose

The present invention relates to electrochromic nanoparticles having a core-shell structure, and a method for producing the same. In order to achieve the above or other objectives, an aspect of the present invention provides a method for producing electrochromic nanoparticles having a core-shell structure, the method comprising the steps of: preparing a core having a predetermined particle diameter; and adsorbing different types of electrochromic materials on the surface of the core, wherein the electrochromic materials have different absorption spectra. According to the present invention, it is possible to provide electrochromic nanoparticles having excellent shielding ability against visible rays and a method for producing the same.

Electrochromic nanoparticles and method for producing same

A display device includes at least one light-emitting element configured to emit blue light, a red conversion layer disposed on an upper or lower portion of the at least one light-emitting element and including a red light-emitting quantum dot, a green conversion layer disposed on the upper or lower portion of the at least one light-emitting element and including a green light-emitting phosphor, and a substrate comprising thin film transistors electrically connected to the light-emitting element.

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Seoul, South Korea

Koun Park