Patents by Inventor Mi Youn Yang
Mi Youn Yang 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: 9184411Abstract: An OLED display device with a passivation film formed between a sealing member and a pad portion through a structural alteration of the sealing member and first and second protective layers prevents deterioration of image quality and a driving faults caused by short circuits and electro-static discharge.Type: GrantFiled: June 24, 2014Date of Patent: November 10, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Seung Hyun Cho, Byoung June Lee, Mi Youn Yang, Sung Chul Kim
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Publication number: 20140374719Abstract: An OLED display device with a passivation film formed between a sealing member and a pad portion through a structural alteration of the sealing member and first and second protective layers prevents deterioration of image quality and a driving faults caused by short circuits and electro-static discharge.Type: ApplicationFiled: June 24, 2014Publication date: December 25, 2014Inventors: Seung Hyun CHO, Byoung June LEE, Mi Youn YANG, Sung Chul KIM
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Patent number: 8759117Abstract: A method of fabricating an organic electroluminescent device (OELD) according to the present invention has steps of repairing a pixel region by irradiating a laser on a drain contact hole of a passivation layer in a pixel region in need of the repair; and disabling the connection between an organic electroluminescent diode and a drain electrode of a driving thin film transistor (TFT), where the pixel region of the OELD has i) the driving TFT comprising the drain electrode, ii) the passivation layer covering the driving TFT, while comprising the drain contact hole exposing the drain electrode of the driving TFT, and iii) the organic electroluminescent diode connected to the drain electrode of the driving TFT via the drain contact hole.Type: GrantFiled: June 6, 2011Date of Patent: June 24, 2014Assignee: LG Display Co., Ltd.Inventors: Mi-Youn Yang, Jun-Ho Lee, Seung-Hyun Cho
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Patent number: 8736158Abstract: A top emission type organic electroluminescent display device includes a first substrate including a pixel region, a switching thin film transistor and a driving thin film transistor in the pixel region on the first substrate, a passivation layer covering the switching thin film transistor and the driving thin film transistor and exposing a drain electrode of the driving thin film transistor, a first electrode on the passivation layer and connected to the drain electrode of the driving thin film transistor, a buffer pattern in a border of the pixel region and overlapping an edge of the first electrode, a first spacer on the buffer pattern along a first direction, the first spacer having a first thickness and a dam shape, a second spacer on the buffer pattern along a second direction, the second spacer having a second thickness and a dam shape, a third spacer on the buffer pattern at a crossing portion of the first and second spacers, the third spacer having a third thickness and a columnar shape, wherein theType: GrantFiled: January 16, 2014Date of Patent: May 27, 2014Assignee: LG Display Co., Ltd.Inventors: Kyung-Tak Oh, Byoung-June Lee, Mi-Youn Yang
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Publication number: 20140131695Abstract: A top emission type organic electroluminescent display device includes a first substrate including a pixel region, a switching thin film transistor and a driving thin film transistor in the pixel region on the first substrate, a passivation layer covering the switching thin film transistor and the driving thin film transistor and exposing a drain electrode of the driving thin film transistor, a first electrode on the passivation layer and connected to the drain electrode of the driving thin film transistor, a buffer pattern in a border of the pixel region and overlapping an edge of the first electrode, a first spacer on the buffer pattern along a first direction, the first spacer having a first thickness and a dam shape, a second spacer on the buffer pattern along a second direction, the second spacer having a second thickness and a dam shape, a third spacer on the buffer pattern at a crossing portion of the first and second spacers, the third spacer having a third thickness and a columnar shape, wherein theType: ApplicationFiled: January 16, 2014Publication date: May 15, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Kyung-Tak Oh, Byoung-June Lee, Mi-Youn Yang
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Patent number: 8651910Abstract: A top emission type organic electroluminescent display device includes a first substrate including a pixel region, a switching thin film transistor and a driving thin film transistor in the pixel region on the first substrate, a passivation layer covering the switching thin film transistor and the driving thin film transistor and exposing a drain electrode of the driving thin film transistor, a first electrode on the passivation layer and connected to the drain electrode of the driving thin film transistor, a buffer pattern in a border of the pixel region and overlapping an edge of the first electrode, a first spacer on the buffer pattern along a first direction, the first spacer having a first thickness and a dam shape, a second spacer on the buffer pattern along a second direction, the second spacer having a second thickness and a dam shape, a third spacer on the buffer pattern at a crossing portion of the first and second spacers, the third spacer having a third thickness and a columnar shape, wherein theType: GrantFiled: December 24, 2009Date of Patent: February 18, 2014Assignee: LG Display Co., Ltd.Inventors: Kyung-Tak Oh, Byoung-June Lee, Mi-Youn Yang
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Patent number: 8519616Abstract: A method for fabricating an organic electroluminescent display device including the steps of preparing first and second substrates, forming an organic electroluminescent display on the first substrate, forming a first etching mask film on an upper surface of the second substrate, forming a second etching mask film on a lower surface of the second substrate, performing a first etching process on the upper surface of the second substrate, forming a third etching mask film on an etched portion of the second surface of the glass substrate, performing a second etching process on the upper surface of the second substrate to form a plurality of grooves on the upper surface of the second substrate, removing the first and second etching mask films, the second etching film remaining on the etched portion of the second surface of the glass substrate, and encapsulating the organic electroluminescent display between the first and second substrates.Type: GrantFiled: July 23, 2012Date of Patent: August 27, 2013Assignee: LG Display Co., Ltd.Inventors: Chang-Ki Seo, Jong-Woo Park, Mi-Youn Yang, Kyung-Tak Oh, Dae-Sick Cho
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Publication number: 20120286655Abstract: A method for fabricating an organic electroluminescent display device including the steps of preparing first and second substrates, forming an organic electroluminescent display on the first substrate, forming a first etching mask film on an upper surface of the second substrate, forming a second etching mask film on a lower surface of the second substrate, performing a first etching process on the upper surface of the second substrate, forming a third etching mask film on an etched portion of the second surface of the glass substrate, performing a second etching process on the upper surface of the second substrate to form a plurality of grooves on the upper surface of the second substrate, removing the first and second etching mask films, the second etching film remaining on the etched portion of the second surface of the glass substrate, and encapsulating the organic electroluminescent display between the first and second substrates.Type: ApplicationFiled: July 23, 2012Publication date: November 15, 2012Inventors: Chang-Ki SEO, Jong-Woo Park, Mi-Youn Yang, Kyung-Tak Oh, Dae-Sick Cho
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Patent number: 8251766Abstract: A method for fabricating an organic electroluminescent display device including the steps of preparing first and second substrates, forming an organic electroluminescent display on the first substrate, forming a first etching mask film on an upper surface of the second substrate, forming a second etching mask film on a lower surface of the second substrate, performing a first etching process on the upper surface of the second substrate, forming a third etching mask film on an etched portion of the second surface of the glass substrate, performing a second etching process on the upper surface of the second substrate to form a plurality of grooves on the upper surface of the second substrate, removing the first and second etching mask films, the second etching film remaining on the etched portion of the second surface of the glass substrate, and encapsulating the organic electroluminescent display between the first and second substrates.Type: GrantFiled: July 16, 2010Date of Patent: August 28, 2012Assignee: LG Display Co., Ltd.Inventors: Chang-Ki Seo, Jong-Woo Park, Mi-Youn Yang, Kyung-Tak Oh, Dae-Sick Cho
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Publication number: 20120064641Abstract: A method of fabricating an organic electroluminescent device (OELD) according to the present invention has steps of repairing a pixel region by irradiating a laser on a drain contact hole of a passivation layer in a pixel region in need of the repair; and disabling the connection between an organic electroluminescent diode and a drain electrode of a driving thin film transistor (TFT), where the pixel region of the OELD has i) the driving TFT comprising the drain electrode, ii) the passivation layer covering the driving TFT, while comprising the drain contact hole exposing the drain electrode of the driving TFT, and iii) the organic electroluminescent diode connected to the drain electrode of the driving TFT via the drain contact hole.Type: ApplicationFiled: June 6, 2011Publication date: March 15, 2012Inventors: Mi-Youn Yang, Jun-Ho Lee, Seung-Hyun Cho
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Patent number: 7973475Abstract: An OLED device and a method for fabricating the same are disclosed, capable of improving yield and preventing decomposition of organic layers by moisture. An organic passivation layer having excellent morphology is applied to prevent a short circuit between an anode electrode and a cathode electrode. A Ca layer is applied to remove moisture from the inside of the device, thereby increasing the lifespan of the device. Accordingly, generation of dark sports by the short circuit caused by protrusions on a poor-morphology layer can be prevented. In addition, moisture absorbent layers are formed between the passivation layers and the partitions to remove outside moisture and the moisture outgassed from the inside, that is, partitions and organic layers, thereby elongating the lifespan of the OLED device.Type: GrantFiled: December 18, 2008Date of Patent: July 5, 2011Assignee: LG Display Co., Ltd.Inventors: Dong Hwan Kim, Mi Youn Yang, Hyung Chul Kim, Jun Ho Lee, Kyung Tak Oh
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Publication number: 20110012506Abstract: A method for fabricating an organic electroluminescent display device including the steps of preparing first and second substrates, forming an organic electroluminescent display on the first substrate, forming a first etching mask film on an upper surface of the second substrate, forming a second etching mask film on a lower surface of the second substrate, performing a first etching process on the upper surface of the second substrate, forming a third etching mask film on an etched portion of the second surface of the glass substrate, performing a second etching process on the upper surface of the second substrate to form a plurality of grooves on the upper surface of the second substrate, removing the first and second etching mask films, the second etching film remaining on the etched portion of the second surface of the glass substrate, and encapsulating the organic electroluminescent display between the first and second substrates.Type: ApplicationFiled: July 16, 2010Publication date: January 20, 2011Inventors: Chang-Ki SEO, Jong-Woo Park, Mi-Youn Yang, Kyung-Tak Oh, Dae-Sick Cho
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Publication number: 20100309172Abstract: A top emission type organic electroluminescent display device includes a first substrate including a pixel region, a switching thin film transistor and a driving thin film transistor in the pixel region on the first substrate, a passivation layer covering the switching thin film transistor and the driving thin film transistor and exposing a drain electrode of the driving thin film transistor, a first electrode on the passivation layer and connected to the drain electrode of the driving thin film transistor, a buffer pattern in a border of the pixel region and overlapping an edge of the first electrode, a first spacer on the buffer pattern along a first direction, the first spacer having a first thickness and a dam shape, a second spacer on the buffer pattern along a second direction, the second spacer having a second thickness and a dam shape, a third spacer on the buffer pattern at a crossing portion of the first and second spacers, the third spacer having a third thickness and a columnar shape, wherein theType: ApplicationFiled: December 24, 2009Publication date: December 9, 2010Inventors: Kyung-Tak Oh, Byoung-June Lee, Mi-Youn Yang
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Publication number: 20090315450Abstract: An OLED device and a method for fabricating the same are disclosed, capable of improving yield and preventing decomposition of organic layers by moisture. An organic passivation layer having excellent morphology is applied to prevent a short circuit between an anode electrode and a cathode electrode. A Ca layer is applied to remove moisture from the inside of the device, thereby increasing the lifespan of the device. Accordingly, generation of dark sports by the short circuit caused by protrusions on a poor-morphology layer can be prevented. In addition, moisture absorbent layers are formed between the passivation layers and the partitions to remove outside moisture and the moisture outgassed from the inside, that is, partitions and organic layers, thereby elongating the lifespan of the OLED device.Type: ApplicationFiled: December 18, 2008Publication date: December 24, 2009Inventors: Dong Hwan Kim, Mi Youn Yang, Hyung Chul Kim, Jun Ho Lee, Kyung Tak Oh