Patents by Inventor Yun Hyuk CHOI

Yun Hyuk CHOI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100117110
    Abstract: A photosensitive quantum dot including a quantum dot, and a plurality of photosensitive moieties that are bound to a surface of the quantum dot, wherein each of the photosensitive moieties includes silicon (Si) and a photosensitive functional group. Also disclosed are a composition for forming a quantum dot-containing pattern, where the composition includes the photosensitive quantum dot, and a method of forming a quantum dot-containing pattern using the composition.
    Type: Application
    Filed: June 8, 2009
    Publication date: May 13, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-jin Park, Kwang-hee Lee, Won-jae Joo, Xavier Bulliard, Yun-hyuk Choi, Kwang-sup Lee
  • Publication number: 20100119976
    Abstract: A composition for radical polymerization includes a photosensitive material, a photoinitiator, a solvent, and a material for adjusting a size of a pattern. A method of forming a pattern using the composition is also disclosed.
    Type: Application
    Filed: June 5, 2009
    Publication date: May 13, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-jin Park, Kwang-hee Lee, Xavier Bulliard, Yun-hyuk Choi, Kwang-sup Lee
  • Publication number: 20100112270
    Abstract: A multilayer film is provided. The multilayer film includes a barrier layer and an adhesive layer underlying the barrier layer. The adhesive layer contains a block copolymer that can phase separate into two or more different domains. The multilayer film has good gas and moisture barrier properties and is highly flexible. Therefore, the multilayer film can be effectively used in manufacturing encapsulation structures for electronic devices. In addition, the multilayer film is suitable for use as a substrate for a device. Further provided are a method for producing the multilayer film and an encapsulation structure including the multilayer film.
    Type: Application
    Filed: March 13, 2009
    Publication date: May 6, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Xavier BULLIARD, Kwang Hee LEE, Jong Jin PARK, Yun Hyuk CHOI, In Sik IN
  • Publication number: 20100021691
    Abstract: Disclosed herein are a thin layer having a composition gradient and a method for the production of the thin layer. According to the method, the thin layer is produced by subjecting a mixture of one or more organic materials and one or more inorganic materials to a sol-gel process. The composition gradient and the surface energy of the thin layer are controlled during production, leaving no interfacial failure defects.
    Type: Application
    Filed: January 8, 2009
    Publication date: January 28, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang Hee LEE, Xavier BULLIARD, Jong Jin PARK, Yun Hyuk CHOI
  • Publication number: 20090305062
    Abstract: A method for fabrication of a multilayered encapsulation thin film having optical functionality and a multilayered encapsulation thin film fabricated thereof includes a reactive or a non-reactive PVD process using a physical vapor deposition device containing multiple targets in a vacuum chamber is conducted or the above processes are alternately conducted such that the multilayered encapsulation thin film consisting of multiple layers with different densities and refractive indexes may be easily fabricated. In addition, the multilayered encapsulation thin film fabricated by the same has superior ability for inhibiting moisture and/or oxygen penetration sufficient to be used as an encapsulation material, controls a refractive index distribution for multiple layers in fabrication of a multilayered thin film so as to function as an anti-reflection film, and improves light output of a device.
    Type: Application
    Filed: November 17, 2008
    Publication date: December 10, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Yun Hyuk CHOI, Jong Jin PARK, Young Gu LEE, Kwang Hee LEE, Xavier BULLIARD
  • Publication number: 20090258237
    Abstract: Disclosed herein is a graded composition encapsulation thin film and a fabrication method thereof. The encapsulation thin film comprises a substrate, a graded composition layer and an anchoring layer interposed therebetween. The anchoring layer serves to improve the adhesion between the graded composition layer and the substrate and creates advantageous conditions for the formation of the graded composition layer. Due to the presence of the anchoring layer, the encapsulation thin film has excellent barrier properties against the permeation of moisture and oxygen and is highly resistant to diffusion of other chemical species.
    Type: Application
    Filed: August 13, 2008
    Publication date: October 15, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun Hyuk CHOI, Kwang Hee LEE, Hyung Jin BAE, Jong Jin PARK, Xavier BULLIARD
  • Publication number: 20090252975
    Abstract: Disclosed herein is a protective film. The protective film is produced by alternate coating of a polysilazane-based polymer and a flexible polysiloxane-based polymer. The polysilazane-based polymer is cured at low temperature to form silica, thereby achieving high hardness and high light transmittance. The protective film has improved interfacial adhesion between the respective coating films, which prevents permeation of moisture and oxygen. In addition, the protective film can be easily produced by low-temperature wet processes. Also disclosed herein is an encapsulation material comprising the protective film.
    Type: Application
    Filed: September 30, 2008
    Publication date: October 8, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG CORNING PRECISION GLASS CO., LTD.
    Inventors: Kwang Hee LEE, Xavier BULLIARD, Yi Yeol LYU, Hyeon Jin SHIN, Yun Hyuk CHOI