Patents by Inventor Yuri Koh
Yuri Koh 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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Patent number: 10121837Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: GrantFiled: January 9, 2018Date of Patent: November 6, 2018Assignee: LG Display Co., Ltd.Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Publication number: 20180158888Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: ApplicationFiled: January 9, 2018Publication date: June 7, 2018Inventors: ARyoung LEE, KiSoub YANG, HwangUn SEO, YuRi KOH, Jihyun LEE
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Patent number: 9899459Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: GrantFiled: October 17, 2016Date of Patent: February 20, 2018Assignee: LG Display Co., Ltd.Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Publication number: 20170033167Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: ApplicationFiled: October 17, 2016Publication date: February 2, 2017Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Patent number: 9502481Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: GrantFiled: January 12, 2016Date of Patent: November 22, 2016Assignee: LG Display Co., Ltd.Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Publication number: 20160126301Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: ApplicationFiled: January 12, 2016Publication date: May 5, 2016Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Patent number: 9269753Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: GrantFiled: August 1, 2014Date of Patent: February 23, 2016Assignee: LG Display Co., Ltd.Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Publication number: 20150340413Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.Type: ApplicationFiled: August 1, 2014Publication date: November 26, 2015Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
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Patent number: 8507314Abstract: An organic light emitting device comprises a first substrate, a first electrode formed on the first substrate, a hole transporting layer formed on the first electrode, a light emitting layer formed on the hole transporting layer, a second electrode formed on the light emitting layer; and a mixture layer formed between the hole transporting layer and the light emitting layer, where the mixture layer including a hole transporting functioning material, wherein the hole transporting functioning material and the light emitting functioning material have concentration gradient respectively.Type: GrantFiled: September 14, 2010Date of Patent: August 13, 2013Assignee: LG Display Co., Ltd.Inventors: Yuri Koh, Moonky Yee, Woochan Kim
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Publication number: 20110111542Abstract: A method of fabricating an OLED display, includes sequentially forming a TFT array, first electrodes, and a first related layer on a first substrate, respectively forming heat-generating elements on second and third substrates, forming a red organic emission pattern on the second substrate, and forming a green organic emission pattern on the third substrate, aligning and attaching the first and second substrates, applying a voltage to heat-generating elements to transfer the red organic emission pattern to red pixel regions, thereby forming red organic emission layers, aligning and attaching the first and third substrates, applying a voltage to the heat-generating elements to transfer the green organic emission pattern to green pixel regions, thereby forming green organic emission layers, entirely depositing a blue organic emission material on the first substrate, thereby forming a blue organic emission layer, and sequentially forming a second related layer and a second electrode on the first substrate.Type: ApplicationFiled: October 19, 2010Publication date: May 12, 2011Inventors: Moonky YEE, Changwook Han, Woochan Kim, Yuri Koh
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Patent number: 7932113Abstract: A method of fabricating an OLED display, includes sequentially forming a TFT array, first electrodes, and a first related layer on a first substrate, respectively forming heat-generating elements on second and third substrates, forming a red organic emission pattern on the second substrate, and forming a green organic emission pattern on the third substrate, aligning and attaching the first and second substrates, applying a voltage to heat-generating elements to transfer the red organic emission pattern to red pixel regions, thereby forming red organic emission layers, aligning and attaching the first and third substrates, applying a voltage to the heat-generating elements to transfer the green organic emission pattern to green pixel regions, thereby forming green organic emission layers, entirely depositing a blue organic emission material on the first substrate, thereby forming a blue organic emission layer, and sequentially forming a second related layer and a second electrode on the first substrate.Type: GrantFiled: October 19, 2010Date of Patent: April 26, 2011Assignee: LG Display Co., Ltd.Inventors: Moonky Yee, Changwook Han, Woochan Kim, Yuri Koh
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Publication number: 20110068331Abstract: An organic light emitting device comprises a first substrate, a first electrode formed on the first substrate, a hole transporting layer formed on the first electrode, a light emitting layer formed on the hole transporting layer, a second electrode formed on the light emitting layer; and a mixture layer formed between the hole transporting layer and the light emitting layer, where the mixture layer including a hole transporting functioning material, wherein the hole transporting functioning material and the light emitting functioning material have concentration gradient respectively.Type: ApplicationFiled: September 14, 2010Publication date: March 24, 2011Inventors: Yuri KOH, Moonky Yee, Woochan Kim