Patents by Inventor Won-Kyu Choe
Won-Kyu Choe 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: 20210134914Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.Type: ApplicationFiled: January 8, 2021Publication date: May 6, 2021Applicant: Samsung Display Co., Ltd.Inventors: Hun KIM, Hyo-Jeong KWON, Moon-Won CHANG, Won-Kyu CHOE
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Patent number: 10910456Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.Type: GrantFiled: December 29, 2014Date of Patent: February 2, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hun Kim, Hyo-Jeong Kwon, Moon-Won Chang, Won-Kyu Choe
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Patent number: 9306191Abstract: An organic light-emitting display apparatus includes: a substrate; a plurality of thin film transistors on the substrate, each of the thin film transistors including an active layer, a gate electrode, and source and drain electrodes; first electrodes electrically connected to the plurality of thin film transistors, respectively, and being on respective pixels corresponding to the plurality of thin film transistors; organic layers on the first electrodes, respectively, and including light-emitting layers; auxiliary electrodes each of which is on at least a portion between adjacent organic layers of the organic layers; and a second electrode facing the first electrodes and covering the organic layers and the auxiliary electrodes.Type: GrantFiled: March 15, 2013Date of Patent: April 5, 2016Assignee: Samsung Display Co., Ltd.Inventor: Won-Kyu Choe
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Publication number: 20150349287Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.Type: ApplicationFiled: December 29, 2014Publication date: December 3, 2015Inventors: Hun KIM, Hyo-Jeong KWON, Moon-Won CHANG, Won-Kyu CHOE
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Patent number: 9165996Abstract: An organic light emitting display device and a method of manufacturing the same are proposed. The organic light emitting display device includes a display unit having a plurality of sub-pixels, each of which includes a pixel electrode and a counter electrode facing each other and a light emitting layer interposed therebetween; an encapsulation substrate, which covers the display unit; and an auxiliary electrode, which is formed on a surface of the encapsulation substrate, which faces the display unit, and is connected to the counter electrode. Using the structure, voltage drop may be effectively reduced by connecting an auxiliary electrode formed on an encapsulation substrate to a counter electrode, thereby improving reliability of an organic light emitting display device employing the same.Type: GrantFiled: March 5, 2013Date of Patent: October 20, 2015Assignee: Samsung Display Co., Ltd.Inventor: Won-Kyu Choe
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Publication number: 20140110674Abstract: An organic light emitting display device and a method of manufacturing the same are proposed. The organic light emitting display device includes a display unit having a plurality of sub-pixels, each of which includes a pixel electrode and a counter electrode facing each other and a light emitting layer interposed therebetween; an encapsulation substrate, which covers the display unit; and an auxiliary electrode, which is formed on a surface of the encapsulation substrate, which faces the display unit, and is connected to the counter electrode. Using the structure, voltage drop may be effectively reduced by connecting an auxiliary electrode formed on an encapsulation substrate to a counter electrode, thereby improving reliability of an organic light emitting display device employing the same.Type: ApplicationFiled: March 5, 2013Publication date: April 24, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: Won-Kyu Choe
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Publication number: 20140110680Abstract: An organic light-emitting display apparatus includes: a substrate; a plurality of thin film transistors on the substrate, each of the thin film transistors including an active layer, a gate electrode, and source and drain electrodes; first electrodes electrically connected to the plurality of thin film transistors, respectively, and being on respective pixels corresponding to the plurality of thin film transistors; organic layers on the first electrodes, respectively, and including light-emitting layers; auxiliary electrodes each of which is on at least a portion between adjacent organic layers of the organic layers; and a second electrode facing the first electrodes and covering the organic layers and the auxiliary electrodes.Type: ApplicationFiled: March 15, 2013Publication date: April 24, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: Won-Kyu Choe
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Patent number: 8175124Abstract: A frit sealing system for combining a first substrate and a second substrate using frit comprises a laser generating a laser beam, and a homogenizer normalizing the intensity of the laser beam within a cross section of the laser beam in the transverse direction. The frit sealing system further comprises a support apparatus configured to hold a first and a second substrate with frit interposed between them, wherein the frit is configured to be cured by heat generated from the laser beam and thereby solidifying and binding the first and the second substrates.Type: GrantFiled: August 4, 2008Date of Patent: May 8, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jung-Min Lee, Hee-Seong Jeong, Choong-Ho Lee, Jun-Sik Oh, Je-Kil Ryu, Won-Kyu Choe
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Patent number: 7942716Abstract: A frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, and more particularly, a frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, which includes a pressure member so as to physically pressurize a first substrate and a second substrate, thereby increasing adhesion of a frit when the first substrate and the second substrate are adhered to each other by using the frit.Type: GrantFiled: February 13, 2009Date of Patent: May 17, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jung-Min Lee, Seok-Joon Yoon, Choong-Ho Lee, Hee-Seong Jeong, Tae-Wook Kang, Won-Kyu Choe
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Patent number: 7928431Abstract: An organic light emitting display apparatus with reduced infiltration of external moisture and oxygen comprises: a substrate comprising a plurality of TFT devices; and a display region formed on the substrate; wherein the display region comprises a base layer which comprises first electrodes electrically connected to the TFT devices and defining a pixel region, an organic layer formed on the base layer, and a second electrode layer formed in a structure covering the base layer and organic layer completely.Type: GrantFiled: November 5, 2007Date of Patent: April 19, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Won-Kyu Choe, Ji-Yeon Baek
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Patent number: 7807009Abstract: An hermetic sealing apparatus is discussed. The apparatus may include one or more of the following a glass mask disposed on an upper surface of a first substrate, a support member disposed on an upper surface of the glass mask, a laser irradiation member positioned spaced on the upper surface of the glass mask, a plurality of lower support members disposed in a contour region of a lower surface of the second substrate, and pressing members disposed on a lower surface of the lower support members.Type: GrantFiled: August 18, 2008Date of Patent: October 5, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jung-Min Lee, Choong-Ho Lee, Seok-Joon Yoon, Won-Kyu Choe, Tae-Wook Kang
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Patent number: 7791267Abstract: An organic light emitting display and a method of fabricating the same are disclosed. One embodiment of the organic light emitting display includes a substrate including a pixel region and a cathode-on-driver (COD) region adjacent to the pixel region, a thin film transistor formed on the pixel region of the substrate, and a planarization film formed on an entire surface of the substrate to cover the thin film transistor. The organic light emitting display also includes an organic light emitting diode including a first pixel electrode formed on the planarization film and connected to the thin film transistor, an organic light emitting layer formed on the first pixel electrode, and a second pixel electrode formed on an entire surface of the substrate over the organic light emitting layer. The organic light emitting display further includes a pixel definition layer which is provided between the planarization film and the second pixel electrode.Type: GrantFiled: January 5, 2007Date of Patent: September 7, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Ji-Yeon Baek, Won-Kyu Choe, Keun-Soo Lee, Dong-Young Sung
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Publication number: 20090233513Abstract: A frit sealing system for combining a first substrate and a second substrate using frit comprises a laser generating a laser beam, and a homogenizer normalizing the intensity of the laser beam within a cross section of the laser beam in the transverse direction. The frit sealing system further comprises a support apparatus configured to hold a first and a second substrate with frit interposed between them, wherein the frit is configured to be cured by heat generated from the laser beam and thereby solidifying and binding the first and the second substrates.Type: ApplicationFiled: August 4, 2008Publication date: September 17, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Jung-Min Lee, Hee-Seong Jeong, Choong-Ho Lee, Jun-Sik Oh, Je-Kil Ryu, Won-Kyu Choe
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Publication number: 20090233514Abstract: A frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, and more particularly, a frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, which includes a pressure member so as to physically pressurize a first substrate and a second substrate, thereby increasing adhesion of a frit when the first substrate and the second substrate are adhered to each other by using the frit.Type: ApplicationFiled: February 13, 2009Publication date: September 17, 2009Inventors: Jung-Min Lee, Seok-Joon Yoon, Choong-Ho Lee, Hee-Seong Jeong, Tae-Wook Kang, Won-Kyu Choe
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Publication number: 20090229745Abstract: An hermetic sealing apparatus is discussed. The apparatus may include one or more of the following a glass mask disposed on an upper surface of a first substrate, a support member disposed on an upper surface of the glass mask, a laser irradiation member positioned spaced on the upper surface of the glass mask, a plurality of lower support members disposed in a contour region of a lower surface of the second substrate, and pressing members disposed on a lower surface of the lower support members.Type: ApplicationFiled: August 18, 2008Publication date: September 17, 2009Inventors: Jung-Min Lee, Choong-Ho Lee, Seok-Joon Yoon, Won-Kyu Choe, Tae-Wook Kang
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Patent number: 7411345Abstract: In particular, one embodiment of the present invention provides an organic electroluminescent display which comprises a light emitting device formed on a lower insulating substrate, and an upper substrate mounted to encapsulate the light emitting device, wherein the upper substrate is provided with a desiccant, the desiccant being formed with at least one hole passing through the desiccant.Type: GrantFiled: November 16, 2004Date of Patent: August 12, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Ho-Seok Lee, Won-Kyu Choe
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Publication number: 20080142807Abstract: An organic light emitting display apparatus with reduced infiltration of external moisture and oxygen comprises: a substrate comprising a plurality of TFT devices; and a display region formed on the substrate; wherein the display region comprises a base layer which comprises first electrodes electrically connected to the TFT devices and defining a pixel region, an organic layer formed on the base layer, and a second electrode layer formed in a structure covering the base layer and organic layer completely.Type: ApplicationFiled: November 5, 2007Publication date: June 19, 2008Inventors: Won-Kyu Choe, Ji-Yeon Baek
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Publication number: 20080067932Abstract: An organic light emitting display and a method of fabricating the same are disclosed. One embodiment of the organic light emitting display includes a substrate including a pixel region and a cathode-on-driver (COD) region adjacent to the pixel region, a thin film transistor formed on the pixel region of the substrate, and a planarization film formed on an entire surface of the substrate to cover the thin film transistor. The organic light emitting display also includes an organic light emitting diode including a first pixel electrode formed on the planarization film and connected to the thin film transistor, an organic light emitting layer formed on the first pixel electrode, and a second pixel electrode formed on an entire surface of the substrate over the organic light emitting layer. The organic light emitting display further includes a pixel definition layer which is provided between the planarization film and the second pixel electrode.Type: ApplicationFiled: January 5, 2007Publication date: March 20, 2008Inventors: Ji-Yeon Baek, Won-Kyu Choe, Keun-Soo Lee, Dong-Young Sung
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Publication number: 20050104513Abstract: In particular, one embodiment of the present invention provides an organic electroluminescent display which comprises a light emitting device formed on a lower insulating substrate, and an upper substrate mounted to encapsulate the light emitting device, wherein the upper substrate is provided with a desiccant, the desiccant being formed with at least one hole passing through the desiccant.Type: ApplicationFiled: November 16, 2004Publication date: May 19, 2005Inventors: Ho-Seok Lee, Won-Kyu Choe