Patents by Inventor Doo-Hee Jung
Doo-Hee Jung 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).
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Publication number: 20250040432Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency, higher power efficiency, and/or better lifetime properties, compared to conventional organic electroluminescent devices.Type: ApplicationFiled: October 2, 2024Publication date: January 30, 2025Inventors: So-Young JUNG, Su-Hyun LEE, Mi-Ja LEE, Doo-Hyeon MOON, Sang-Hee CHO
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Patent number: 8809467Abstract: An organic layer composition and a liquid crystal display including the same are provided. An organic layer composition according to an exemplary embodiment includes a binder formed by copolymerizing compounds included in a first group and a second group, wherein the first group includes an acryl-based compound and the second group includes a compound without a —COO— group.Type: GrantFiled: March 12, 2010Date of Patent: August 19, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hoon Kang, Jae-Sung Kim, Yang-Ho Jung, Jin-Ho Ju, Doo-Hee Jung, Jung-In Park, Shi-Yul Kim
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Patent number: 8553192Abstract: A liquid crystal display (LCD) is provided that includes: a first substrate; a gate line formed on the first substrate; a data line intersecting the gate line to define a pixel; a thin-film transistor (TFT) connected to the gate line and the data line and formed in the pixel; a sustain electrode line including a first sustain electrode that passes through the pixel, so as to divide the pixel into a first region and a transparent second region, and a second sustain electrodes that extend perpendicularly from the first sustain electrode; and a first pixel electrode connected to the TFT, disposed in the first region.Type: GrantFiled: April 19, 2011Date of Patent: October 8, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sang-Woo Whangbo, Yong-Su Lee, Doo-Hee Jung, Cheol-Gon Lee
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Patent number: 8203674Abstract: A thin film transistor array panel for a flat panel display includes a substrate, a first signal line formed on the substrate, a second signal line intersecting and insulated from the first signal line, a switching element having a first terminal connected to the first signal line, a second terminal connected to the second signal line, and a third terminal, a pixel electrode connected to the third terminal of the switching element, and first and second light blocking members extending parallel to the second signal line, each being disposed on an opposite side of and partially overlapping an respective edge of the second signal line, an interval between the first and second light blocking members being in a range of from more than 1.5 ?m to less than 4 ?m. The array panel prevents light leakage from the display and improves its transmittance, aperture ratio and color reproducibility.Type: GrantFiled: July 8, 2011Date of Patent: June 19, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Ha Choi, Min-Seok Oh, Jeong-Min Park, Doo-Hee Jung, Hi-Kuk Lee, Sang-Gab Kim
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Publication number: 20120133855Abstract: A liquid crystal display (LCD) is provided that includes: a first substrate; a gate line formed on the first substrate; a data line intersecting the gate line to define a pixel; a thin-film transistor (TFT) connected to the gate line and the data line and formed in the pixel; a sustain electrode line including a first sustain electrode that passes through the pixel, so as to divide the pixel into a first region and a transparent second region, and a second sustain electrodes that extend perpendicularly from the first sustain electrode; and a first pixel electrode connected to the TFT, disposed in the first region.Type: ApplicationFiled: April 19, 2011Publication date: May 31, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Woo WHANGBO, Yong-Su LEE, Doo-Hee JUNG, Cheol-Gon LEE
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Patent number: 8093594Abstract: A display substrate includes an insulating substrate, a thin film transistor, a contact electrode, and a pixel electrode. The thin film transistor includes a control electrode, a semiconductor pattern, a first electrode, and a second electrode. The control electrode is on the insulating substrate. The semiconductor pattern is on the control electrode. The first electrode is on the semiconductor pattern. The second electrode is spaced apart from the first electrode on the semiconductor pattern. The contact electrode includes a contact portion and an undercut portion. The contact portion is electrically connected to the second electrode to partially expose the semiconductor pattern. The undercut portion is electrically connected to the contact portion to cover the semiconductor pattern. The pixel electrode is electrically connected to the second electrode through the contact portion of the contact electrode.Type: GrantFiled: June 19, 2009Date of Patent: January 10, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Hyun Choung, Hong-Sick Park, Joo-Ae Youn, Sun-Young Hong, Bong-Kyun Kim, Won-Suk Shin, Doo-Hee Jung, Byeong-Jin Lee
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Patent number: 8059076Abstract: A display panel includes a substrate, signal lines, a thin film transistor, a pixel electrode and a dummy opening. The substrate has a display area and a peripheral area surrounding the display area. The signal lines are disposed on the substrate and intersect each other to define a unit pixel. The thin film transistor is electrically connected to the signal lines and disposed at the unit pixel. The pixel electrode is electrically connected to the thin film transistor. The pixel electrode is formed in the unit pixel. The dummy opening is disposed at the peripheral area and spaced apart from the signal lines.Type: GrantFiled: July 24, 2007Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Doo-Hee Jung, Jeong-Min Park, Kyung-Su Mun, Hi-Kuk Lee, Joo-Ae Youn
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Publication number: 20110269253Abstract: A thin film transistor array panel for a flat panel display includes a substrate, a first signal line formed on the substrate, a second signal line intersecting and insulated from the first signal line, a switching element having a first terminal connected to the first signal line, a second terminal connected to the second signal line, and a third terminal, a pixel electrode connected to the third terminal of the switching element, and first and second light blocking members extending parallel to the second signal line, each being disposed on an opposite side of and partially overlapping an respective edge of the second signal line, an interval between the first and second light blocking members being in a range of from more than 1.5 ?m to less than 4 ?m. The array panel prevents light leakage from the display and improves its transmittance, aperture ratio and color reproducibility.Type: ApplicationFiled: July 8, 2011Publication date: November 3, 2011Inventors: Seung-Ha CHOI, Min-Seok Oh, Jeong-Min Park, Doo-Hee Jung, Hi-Kuk Lee, Sang-Gab Kim
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Patent number: 8004636Abstract: A thin film transistor array panel for a flat panel display includes a substrate, a first signal line formed on the substrate, a second signal line intersecting and insulated from the first signal line, a switching element having a first terminal connected to the first signal line, a second terminal connected to the second signal line, and a third terminal, a pixel electrode connected to the third terminal of the switching element, and first and second light blocking members extending parallel to the second signal line, each being disposed on an opposite side of and partially overlapping an respective edge of the second signal line, an interval between the first and second light blocking members being in a range of from more than 1.5 ?m to less than 4 ?m. The array panel prevents light leakage from the display and improves its transmittance, aperture ratio and color reproducibility.Type: GrantFiled: July 22, 2008Date of Patent: August 23, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Ha Choi, Min-Seok Oh, Jeong-Min Park, Doo-Hee Jung, Hi-Kuk Lee, Sang-Gab Kim
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Patent number: 7989136Abstract: 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: GrantFiled: March 31, 2008Date of Patent: August 2, 2011Assignees: Samsung Electronics Co., Ltd., Dongjin Semichem Co., Ltd.Inventors: Jeong-Min Park, Doo-Hee Jung, Hi-Kuk Lee, Hyoc-Min Yoon, Ki-Hyuk Koo
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Patent number: 7969522Abstract: A display substrate includes a first metal pattern, a first insulating layer, a first electrode, and a second metal pattern. The first metal pattern includes a gate line and a signal line. The first insulating layer is disposed on a substrate having the first metal pattern formed thereon. A first opening passes through the first insulating layer to partially expose the signal line. The first electrode is disposed on the first insulating layer corresponding to a unit pixel. The second metal pattern includes a connection electrode contacting the first electrode and the signal line through the first opening and a data line.Type: GrantFiled: July 22, 2010Date of Patent: June 28, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Doo-Hee Jung, Kyung-Su Mun, Jeong-Min Park, Joo-Han Kim, Joo-Ae Youn
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Patent number: 7955784Abstract: A photoresist composition includes about 100 parts by weight of resin mixture including novolak resin and acryl resin and about 10 parts to about 50 parts by weight of naphthoquinone diazosulfonic acid ester. A weight-average molecular weight of the novolak resin is no less than about 30,000. A weight-average molecular weight of the acryl resin is no less than about 20,000. The acryl resin makes up about 1% to about 15% of the total weight of the resin mixture. When a photoresist film formed using the photoresist composition is heated, a profile variation of the photoresist composition is relatively small. Therefore, a residual photoresist film has a uniform thickness, and a short circuit and/or an open defect in a TFT substrate may be reduced.Type: GrantFiled: October 30, 2006Date of Patent: June 7, 2011Assignees: Samsung Electronics Co., Ltd., AZ Electronic Materials (Japan) K.K.Inventors: Hi-Kuk Lee, Woo-Seok Jeon, Doo-Hee Jung, Jeong-Min Park, Deok-Man Kang, Si-Young Jung, Jae-Young Choi
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Publication number: 20110051059Abstract: An organic layer composition and a liquid crystal display including the same are provided. An organic layer composition according to an exemplary embodiment includes a binder formed by copolymerizing compounds included in a first group and a second group, wherein the first group includes an acryl-based compound and the second group includes a compound without a —COO— group.Type: ApplicationFiled: March 12, 2010Publication date: March 3, 2011Inventors: Hoon Kang, Jae-Sung Kim, Yang-Ho Jung, Jin-Ho Ju, Doo-Hee Jung, Jung-In Park, Shi-Yul Kim
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Publication number: 20100283932Abstract: A display substrate includes a first metal pattern, a first insulating layer, a first electrode, and a second metal pattern. The first metal pattern includes a gate line and a signal line. The first insulating layer is disposed on a substrate having the first metal pattern formed thereon. A first opening passes through the first insulating layer to partially expose the signal line. The first electrode is disposed on the first insulating layer corresponding to a unit pixel. The second metal pattern includes a connection electrode contacting the first electrode and the signal line through the first opening and a data line.Type: ApplicationFiled: July 22, 2010Publication date: November 11, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Doo-Hee JUNG, Kyung-Su MUN, Jeong-Min PARK, Joo-Han KIM, Joo-Ae YOUN
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Patent number: 7787067Abstract: A display substrate includes a first metal pattern, a first insulating layer, a first electrode, and a second metal pattern. The first metal pattern includes a gate line and a signal line. The first insulating layer is disposed on a substrate having the first metal pattern formed thereon. A first opening passes through the first insulating layer to partially expose the signal line. The first electrode is disposed on the first insulating layer corresponding to a unit pixel. The second metal pattern includes a connection electrode contacting the first electrode and the signal line through the first opening and a data line.Type: GrantFiled: February 7, 2008Date of Patent: August 31, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Doo-Hee Jung, Kyung-Su Mun, Jeong-Min Park, Joo-Han Kim, Joo-Ae Youn
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Patent number: 7776633Abstract: A method of manufacturing a thin film transistor array panel, including: forming gate lines on a substrate; forming a gate insulating layer on the gate lines; forming semiconductor layers on the gate insulating layer; forming data lines and drain electrodes on the semiconductor layers; depositing a passivation layer on the data lines and the drain electrodes; forming a first photoresist layer including a first portion and a second portion that is thinner than the first portion on the passivation layer; forming a first preliminary contact hole exposing the data lines by etching the passivation layer by using the first photoresist layer as a mask; removing the second portion of the first photoresist; forming a first contact hole by expanding the first preliminary contact hole and opening portions by etching the passivation layer by using the first portion of the first photoresist layer as a mask; depositing a conductor layer; and forming pixel electrodes in the opening portions and a first contact assistant memType: GrantFiled: April 3, 2007Date of Patent: August 17, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Hyun Choung, Hong-Sick Park, Joo-Ae Yoon, Jeong-Min Park, Doo-Hee Jung, Sun-Young Hong, Bong-Kyun Kim, Won-Suk Shin, Byeong-Jin Lee
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Publication number: 20100182525Abstract: A display substrate includes an insulating substrate, a thin film transistor, a contact electrode, and a pixel electrode. The thin film transistor includes a control electrode, a semiconductor pattern, a first electrode, and a second electrode. The control electrode is on the insulating substrate. The semiconductor pattern is on the control electrode. The first electrode is on the semiconductor pattern. The second electrode is spaced apart from the first electrode on the semiconductor pattern. The contact electrode includes a contact portion and an undercut portion. The contact portion is electrically connected to the second electrode to partially expose the semiconductor pattern. The undercut portion is electrically connected to the contact portion to cover the semiconductor pattern. The pixel electrode is electrically connected to the second electrode through the contact portion of the contact electrode.Type: ApplicationFiled: June 19, 2009Publication date: July 22, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-Hyun Choung, Hong-Sick Park, Joo-Ae Youn, Sun-Young Hong, Bong-Kyun Kim, Won-Suk Shin, Doo-Hee Jung, Byeong-Jin Lee
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Publication number: 20100009482Abstract: A photoresist composition includes 5% to 50% by weight of an alkali-soluble resin, 0.5% to 30% by weight of a quinone diazide compound, 0.1% to 15 % by weight of a curing agent, and a remainder of an organic solvent. A method of forming a metal pattern includes coating a photoresist composition on a base substrate having a metal layer, and forming a first photoresist film. The photoresist composition includes 5% to 50% by weight of an alkali-soluble resin, 0.5% to 30% by weight of a quinone diazide compound, 0.1% to 15% by weight of a curing agent, and a remainder of an organic solvent. The first photoresist film is patterned, and forms a first photo pattern. The base substrate having the first photo pattern is heated, and forms a first baked pattern. The metal layer is patterned using the first baked pattern, and forms a metal pattern.Type: ApplicationFiled: April 7, 2009Publication date: January 14, 2010Applicants: Samsung Electronics Co., Ltd., AZ Electronic Materials(Japan) K.K.Inventors: Jeong-Min PARK, Jung-Soo LEE, Doo-Hee JUNG, Hi-Kuk LEE, Deok-Man KANG, Sae-Tae OH, Sang-Won SON, Young-Jin KIM
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Patent number: D609682Type: GrantFiled: April 3, 2009Date of Patent: February 9, 2010Assignee: Motorola, Inc.Inventors: Doo Hee Jung, Ju Hwan J Cho, Sung-Gul Hwang, Ho Yeon Won
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Patent number: D621377Type: GrantFiled: September 22, 2008Date of Patent: August 10, 2010Assignee: Motorola, Inc.Inventors: Doo-Hee Jung, Sung-Gul Hwang, Kio Lee, Paul M. Pierce