Patents Assigned to Dongjin Semichem Co., Ltd.
  • Patent number: 7663796
    Abstract: An electric-field-driving reflective display apparatus is provided. The electric-field-driving reflective display apparatus includes a barrier wall which has a plurality of driving grooves and first and second surfaces, a reflecting member which is disposed within the driving groove and has an electric charge, a first electrode which is disposed on the first surface of the barrier wall, and a second electrode which is disposed on the second surface of the barrier wall, wherein areas of cross sections of each driving groove parallel to the first and second surface are equal to each other.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: February 16, 2010
    Assignee: Dongjin Semichem Co.,Ltd.
    Inventor: Chun-Hyuk Lee
  • Patent number: 7629110
    Abstract: A monomer for forming an organic anti-reflective coating layer, a polymer thereof and a composition including the same are disclosed. In a photolithography process, the organic anti-reflective coating layer absorbs an exposed light between a layer to be etched and a photoresist layer, and prevents a photoresist pattern from collapsing due to a standing wave generated under the photoresist layer. The polymer for forming an organic anti-reflective coating layer includes a repeating unit represented by Formula wherein, R1 is a hydrogen atom, a methyl group or an ethyl group, R2 is a C1˜C20 alkylene group, a C3˜C20 cycloalkylene group or a C6˜C20 aromatic hydrocarbon group, POSS is a polyhedral-oligomeric-silsesquioxane, and m is an integer of 2 to 110.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: December 8, 2009
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Sang-Jeoung Kim, Hyo-Jung Roh, Jong-Kyoung Park, Jeong-Sik Kim, Hyun-Jin Kim, Jae-Hyun Kim
  • Publication number: 20090278073
    Abstract: A polymeric electrolyte membrane for a polymer electrolyte membrane fuel cell comprises: (a) a sulfonated polysulfoneketone copolymer comprising an aromatic sulfone repeating unit, an aromatic ketone repeating unit and an aromatic compound repeating unit which connects said repeating units with an ether linkage, wherein the aromatic sulfone repeating unit, the aromatic ketone repeating unit or both have a sulfonic acid or sulfonate substituent; and (b) one or more polymers each comprising a monomer selected from the group consisting of vinylidene fluoride, hexafluoropropylene, trifluoroethylene and tetrafluoroethylene.
    Type: Application
    Filed: November 18, 2008
    Publication date: November 12, 2009
    Applicants: HYUNDAI MOTOR COMPANY, DONGJIN SEMICHEM CO., LTD.
    Inventors: Ki Yun Cho, In Chul Hwang, Dong Il Kim, Ju Ho Lee
  • Patent number: 7604919
    Abstract: The photoresist monomer including an oxime group, a polymer thereof and a photoresist composition containing the same are disclosed. The photoresist monomer is represented by following Formula. In Formula, R* is independently a hydrogen or a methyl group, and R is a substituted or unsubstituted C1˜C25 alkyl group with or without an ether group, or a substituted or unsubstituted C4˜C25 hydrocarbon group including an aryl group, a heteroaryl group, a cycloalkyl group or a multicycloalkyl group with or without an ether group, a ketone group or a sulfur.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: October 20, 2009
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Deog-Bae Kim, Jung-Youl Lee, Geun-Jong Yu, Sang-Jung Kim, Jae-Woo Lee, Jae-Hyun Kim
  • Publication number: 20090224777
    Abstract: A system for testing a flat panel display having a flat display panel assembly includes a testing stage for arranging tie flat display panel assembly, a measuring apparatus being disposed on the testing stage and for measuring a spectrum of a transmitted light passing through a measuring region of the flat display panel assembly from a light source, a transporting apparatus for moving the measuring apparatus at a constant acceleration on the testing stage, a defect informing apparatus being electrically connected to the measuring apparatus and for informing an existence of defect, a type of defect, and a severity of defect by processing an electrical signal of the spectrum transmitted from the measuring apparatus.
    Type: Application
    Filed: February 15, 2007
    Publication date: September 10, 2009
    Applicant: DONGJIN SEMICHEM CO., LTD.
    Inventors: Byung-Uk Kim, Ki-Beom Lee, Yong-Woo Kim, Mi-Sun Park, Jin-Sup Hong, Wy-Yong Kim
  • Patent number: 7569325
    Abstract: A photoresist monomer having a sulfonyl group, a polymer thereof and a photoresist composition containing the same are disclosed. The photoresist monomer is represented by following Formula. wherein, R* is a hydrogen atom or a methyl group, R1 and R2 are independently a C1˜C20 alkyl group, a C4˜C20 cycloalkyl group, a C6˜C20 aryl group or a C7˜C20 arylalkyl group, one of R1 and R2 may not exist, and R1 and R2 can be connected to form a ring.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: August 4, 2009
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Jung-Youl Lee, Geun-Jong Yu, Sang-Jung Kim, Jae-Woo Lee, Deog-Bae Kim, Jae-Hyun Kim
  • Publication number: 20090191484
    Abstract: The present invention relates to a new photosensitive resin composition capable of solubility control and a pattern formation method of a double-layer structure using the same, and more particularly to a photosensitive resin composition that can control the -value using a new photopolymerization initiator and lower layer hardener and that can control a film thickness according to the exposure energy without pattern breakup, even with low exposure energy. This photosensitive resin composition is useful for color filters and overcoating materials of LCD (liquid crystal display) manufacturing processes.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 30, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., DONGJIN SEMICHEM CO., LTD.
    Inventors: Seok-Yoon YANG, Gil-Lae KIM, Chan-Seok PARK, Choon-Ho PARK, Soo-Guy RHO
  • Publication number: 20090136872
    Abstract: The present invention relates to a photosensitive resin composition, a preparation method thereof, and a dry film resist comprising the same. More particularly, the photosensitive resin composition of the present invention is directed to a photosensitive resin composition including a) an alkali-soluble acrylate resin, b) a cross-linking monomer having at least two ethylenic double bonds, and c) a phosphinoxide based photopolymerization initiator and an acridon based photopolymerization initiator. According to the photosensitive resin composition and the dry film resist, it is easy to finely pattern using a laser direct image (LDI) with high density and the dry film has excellent sensitivity, resolution, and adhesiveness to the substrate.
    Type: Application
    Filed: December 4, 2008
    Publication date: May 28, 2009
    Applicant: DONGJIN SEMICHEM CO., LTD.
    Inventors: In-Ho YOON, Bong-Gi KIM, Chang-Seok RHO, Sang-Ki KANG, Kyung-Rock BYUN, Chan-Seok PARK
  • Publication number: 20090136766
    Abstract: The present invention relates to a low melting point frit paste composition and a sealing method for an electric element using the same, and more particularly, to a low melting point frit paste composition which is sealable and appropriate for a flat panel, protects an element weak to heat and improves a process yield with good print properties, and a sealing method for an electric element using the same.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 28, 2009
    Applicant: DONGJIN SEMICHEM CO., LTD.
    Inventors: JUNG-HYUN SON, SANG-KYU LEE, HAN-BOK JOO
  • Publication number: 20090120012
    Abstract: Disclosed is a method for preparing an additive solution which can be contained in a chemical mechanical polishing slurry composition used for a semiconductor manufacturing process. The method for preparing an additive solution for a chemical mechanical polishing slurry composition comprises the steps of: preparing an aqueous iron salt solution by admixing an iron salt and cooled water of 5° C. or less; and preparing an oxide containing silicon and iron by admixing and stirring a silicon salt and the aqueous iron salt solution for carrying out a reaction of the silicon salt and the aqueous iron salt solution.
    Type: Application
    Filed: December 16, 2008
    Publication date: May 14, 2009
    Applicant: Dongjin Semichem Co., Ltd.
    Inventors: Jong-Dai Park, Dong-Wan Kim
  • Patent number: 7504195
    Abstract: A photosensitive polymer which can form a fine circuit pattern by exacting with extreme UV and deep UV, and can improve a line width stability of a pattern by significantly reducing line edge roughness after developing, and a photoresist composition including the same are disclosed. The photosensitive polymer for extreme UV and deep UV includes a repeating unit represented by the following Formula 1, in Formula 1, R1 and R1? are independently a hydrogen atom, methyl group, or trifluoromethyl group, and R2 is wherein Ra and Rb are independently alkyl group of 1 to 10 carbon atoms, aryl group of 6 to 10 carbon atoms, or arylalkyl group of 7 to 12 carbon atoms, and can be connected together to form ring, and a and b are mol % of each repeating unit with respect to the total repeating unit constituting the photosensitive polymer, and are 1 to 99 mol % and 1 to 99 mol % respectively.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: March 17, 2009
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Deog-Bae Kim, Jae-Hyun Kim
  • Publication number: 20090065049
    Abstract: The present invention relates to a getter paste composition, and more particularly, to a getter paste composition which is quickly densified at low densification temperatures to be applied to a device that is weak to heat, provides good adhesiveness, controls moisture and gas effectively and is screen-printable to thereby improve productivity.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 12, 2009
    Applicant: DONGJIN SEMICHEM Co., Ltd.
    Inventors: Jung-Hyun Son, Sang-Kyu Lee, Han-Bok Joo, Jong-Dai Park
  • Publication number: 20090064717
    Abstract: The present invention relates to a glass frit and a sealing method for an electric element using the same, and more particularly, to a glass frit which provides a good sealing effect to moisture and gas and is processable at low temperatures, and a sealing method for an electric element using the same.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 12, 2009
    Applicant: DONGJIN SEMICHEM Co., Ltd.
    Inventors: JUNG-HYUN SON, SANG-KYU LEE, HAN-BOK JOO, JONG-DAI PARK
  • Patent number: 7501222
    Abstract: A polymer including a monomer represented by the following Formula and a photoresist composition including the same are disclosed. The polymer and photoresist composition can improve the resolution and the process margin due to the low activation energy of the deprotection reaction of the alcohol ester group including saturated cyclic hydrocarbyl group, and also can produce fine photoresist patterns because they have a stable PEB(Post Exposure Baking) temperature sensitivity, and further, can improve the focus depth margin and the line edge roughness of the resist layer. In the above Formula, R* is a hydrogen or methyl group, R1 is saturated hydrocarbyl group of 1 to 5 carbon atoms, R is mono-cyclic or multi-cyclic homo or hetero saturated hydrocarbyl group of 3 to 50 carbon atoms, and n is an integer of at least 2.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: March 10, 2009
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Jung-Youl Lee, Jae-Woo Lee, Jae-Hyun Kim
  • Publication number: 20090045734
    Abstract: The present invention relates to a silicon compound and an organic electroluminescent device using the same, and more particularly, to a silicon compound which has good blue light emission and enables an organic electroluminescent device to have a low voltage, high brightness and long lifetime, and an organic luminescent display device using the same.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 19, 2009
    Applicant: DONGJIN SEMICHEM Co., Ltd.
    Inventors: Hyoung-don MOON, Tae-Jin Park, Jong-Hyub Baek, Hoe-taek Yang, Hyun-cheol An
  • Publication number: 20090042127
    Abstract: A photoresist composition comprises about 0.5 to about 20 parts by weight of a photo-acid generator, about 10 to about 70 parts by weight of a novolac resin containing a hydroxyl group, about 1 to about 40 parts by weight of a cross-linker that comprises an alkoxymethylmelamine compound, and about 10 to about 150 parts by weight of a solvent.
    Type: Application
    Filed: March 31, 2008
    Publication date: February 12, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., DONGJIN SEMICHEM CO., LTD.
    Inventors: Jeong-Min PARK, Doo-Hee JUNG, Hi-Kuk LEE, Hyoc-Min YOUN, Ki-Hyuk KOO
  • Publication number: 20090041955
    Abstract: This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1: wherein n is an integer of 1 to 5 and R is an alkyl or alkoxy group of 3 to 5 carbon atoms, which align liquid crystal in uniform and vertical way, have not only excellent mechanical properties such as heat resistance and surface strength but also high pretilt angles of liquid crystal and in particular, can make response rate of liquid crystal fast, methods for the preparation of the same and liquid crystal alignment films using the same.
    Type: Application
    Filed: February 9, 2007
    Publication date: February 12, 2009
    Applicant: Dongjin Semichem Co., Ltd.
    Inventors: Jin wook Choi, Eung jae Park, Jae cheol Park, Yong bae Kim
  • Publication number: 20090029623
    Abstract: The present invention relates to a sealing method for a display element, and more particularly, to a sealing method for a display element which fundamentally prevents an error due to contact between light emitting bodies of upper and lower sealing members by protecting a surface of a light emitting layer and an electrode with a curing body of a photocurable transparent composition, enhances workability of a display element sealing, provides good moisture resistance and adhesiveness and improves an aperture ratio of a display element by making a top emission available to thereby make a thinner, larger display element.
    Type: Application
    Filed: July 22, 2008
    Publication date: January 29, 2009
    Applicant: DONGJIN SEMICHEM Co., Ltd.
    Inventors: Jung-Hyun Son, Han-Bok Joo, Sang-Kyu Lee, Jong-Dai Park
  • Publication number: 20090009445
    Abstract: Provided is a light blocking display device of an electric field driving type, including a barrier layer (150) including a plurality of driving holes (151) and having a first surface and a second surface, driving bodies (101) which are inserted into the driving holes (151) and have charges, a pixel electrode (120) formed on the first surface of the barrier layer (150), and a common electrode (22) formed on the second surface of the barrier layer (150), wherein the area of a cross section parallel to the first and second surfaces of the driving holes (151) is gradually changed from the first surface to the second surface.
    Type: Application
    Filed: March 10, 2006
    Publication date: January 8, 2009
    Applicant: Dongjin Semichem Co., Ltd.
    Inventor: Chun-Hyuk Lee
  • Patent number: 7465531
    Abstract: A polymer for forming an organic anti-reflective coating layer between an etching layer and a photoresist layer to absorb an exposure light in a photolithography process and a composition comprising the same are disclosed. The polymer for forming an organic anti-reflective coating layer has repeating units represented by wherein, R1 is a substituted or non-substituted alky group of C1 to C5.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: December 16, 2008
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Sang-Jung Kim, Deog-Bae Kim, Jae-Hyun Kim