Patents by Inventor YEOUNGKEOL WOO
YEOUNGKEOL WOO 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: 12082437Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.Type: GrantFiled: October 12, 2022Date of Patent: September 3, 2024Assignee: Samsung Display Co., Ltd.Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
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Patent number: 12004381Abstract: A display apparatus includes a base substrate, an active pattern disposed on the base substrate, a gate insulation layer disposed on the active pattern, a gate electrode disposed on the gate insulation layer and overlapping the active pattern, a first insulation layer disposed on the gate electrode and having a total amount of hydrogen of about 5 atomic percent (at. %) to about 30 at. %, and a source electrode and a drain electrode which are disposed on the first insulation layer and are electrically connected to the active pattern.Type: GrantFiled: October 19, 2021Date of Patent: June 4, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yung Bin Chung, Yeoungkeol Woo, Kwanghyun Kim, Sangwoo Sohn, Dokeun Song, Sangwook Lee, Heon Sik Ha
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Patent number: 11864411Abstract: A display apparatus includes a first substrate, a main pixel circuit located on the first substrate and including a first semiconductor layer, an auxiliary pixel circuit located on the first substrate and including a second semiconductor layer, a buffer layer located between the first substrate and the first semiconductor layer and between the first substrate and the second semiconductor layer, and a barrier layer located between the first substrate and the buffer layer, including one material from among silicon nitride (SiNx), aluminum oxide (Al2O3), and zirconium oxide (Zr2O3), and having a density ranging from about 2 g/cm3 to about 6 g/cm3.Type: GrantFiled: November 9, 2020Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yungbin Chung, Sanggun Choi, Yeoungkeol Woo, Myounggeun Cha, Eunjin Kwak
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Publication number: 20230309343Abstract: A display device includes a substrate, an active pattern disposed on the substrate, and including a first area, a second area, a (1-1)th channel area, a (1-2)th channel area, and a third area disposed between the (1-1)th channel area and the (1-2)th channel area, a first insulating layer disposed on the substrate and covering the active pattern, a second insulating layer which is disposed on the first insulating layer and in which an opening overlapping the (1-2)th channel area, the second area, and the third area is defined, a first gate electrode disposed on the first insulating layer and overlapping the (1-1)th channel area the (1-2)th channel area, respectively, and a high dielectric layer disposed on the first insulating layer and the second insulating layer, covering the first gate electrode, and filling the opening.Type: ApplicationFiled: December 27, 2022Publication date: September 28, 2023Inventors: Keunwoo KIM, Taewook KANG, Yeoungkeol WOO, Woo-Seok JEON
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Patent number: 11658190Abstract: A display apparatus includes a substrate. A first buffer layer is disposed over the substrate. The first buffer layer includes silicon nitride and has an atomic percentage of hydrogen bonded to silicon of about 0.36 to about 1.01. A thin film transistor is disposed over the first buffer layer. The thin film transistor includes an active layer. A display element is electrically connected to the thin film transistor.Type: GrantFiled: December 28, 2020Date of Patent: May 23, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yungbin Chung, Yeoungkeol Woo, Eunjin Kwak
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Publication number: 20230060805Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.Type: ApplicationFiled: October 12, 2022Publication date: March 2, 2023Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
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Patent number: 11476440Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.Type: GrantFiled: July 1, 2019Date of Patent: October 18, 2022Assignee: Samsung Display Co., Ltd.Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
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Publication number: 20220037435Abstract: A display apparatus includes a base substrate, an active pattern disposed on the base substrate, a gate insulation layer disposed on the active pattern, a gate electrode disposed on the gate insulation layer and overlapping the active pattern, a first insulation layer disposed on the gate electrode and having a total amount of hydrogen of about 5 atomic percent (at. %) to about 30 at. %, and a source electrode and a drain electrode which are disposed on the first insulation layer and are electrically connected to the active pattern.Type: ApplicationFiled: October 19, 2021Publication date: February 3, 2022Inventors: Yung Bin Chung, Yeoungkeol Woo, Kwanghyun Kim, Sangwoo Sohn, Dokeun Song, Sangwook Lee, Heon Sik Ha
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Patent number: 11158693Abstract: A display apparatus includes a base substrate, an active pattern disposed on the base substrate, a gate insulation layer disposed on the active pattern, a gate electrode disposed on the gate insulation layer and overlapping the active pattern, a first insulation layer disposed on the gate electrode and having a total amount of hydrogen of about 5 atomic percent (at. %) to about 30 at. %, and a source electrode and a drain electrode which are disposed on the first insulation layer and are electrically connected to the active pattern.Type: GrantFiled: September 19, 2019Date of Patent: October 26, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yung Bin Chung, Yeoungkeol Woo, Kwanghyun Kim, Sangwoo Sohn, Dokeun Song, Sangwook Lee, Heon Sik Ha
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Publication number: 20210320278Abstract: A display apparatus includes a first substrate, a main pixel circuit located on the first substrate and including a first semiconductor layer, an auxiliary pixel circuit located on the first substrate and including a second semiconductor layer, a buffer layer located between the first substrate and the first semiconductor layer and between the first substrate and the second semiconductor layer, and a barrier layer located between the first substrate and the buffer layer, including one material from among silicon nitride (SiNx), aluminum oxide (Al2O3), and zirconium oxide (Zr2O3), and having a density ranging from about 2 g/cm3 to about 6 g/cm3.Type: ApplicationFiled: November 9, 2020Publication date: October 14, 2021Inventors: Yungbin Chung, Sanggun Choi, Yeoungkeol Woo, Myounggeun Cha, Eunjin Kwak
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Publication number: 20210288083Abstract: A display apparatus includes a substrate. A first buffer layer is disposed over the substrate. The first buffer layer includes silicon nitride and has an atomic percentage of hydrogen bonded to silicon of about 0.36 to about 1.01. A thin film transistor is disposed over the first buffer layer. The thin film transistor includes an active layer. A display element is electrically connected to the thin film transistor.Type: ApplicationFiled: December 28, 2020Publication date: September 16, 2021Inventors: YUNGBIN CHUNG, YEOUNGKEOL WOO, EUNJIN KWAK
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Patent number: 10847587Abstract: A display device including a display panel including a light emitting device and a thin film sealing layer disposed on the light emitting device, the display panel providing a base surface, and a touch sensing member including a touch electrode layer and disposed on the base surface. The thin film sealing layer includes a first inorganic layer having a first content of hydrogen, and a second inorganic layer disposed on the first inorganic layer and having a second content of hydrogen less than the first content.Type: GrantFiled: May 11, 2017Date of Patent: November 24, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sangwook Lee, Changok Kim, Yeoungkeol Woo
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Publication number: 20200111854Abstract: A display apparatus includes a base substrate, an active pattern disposed on the base substrate, a gate insulation layer disposed on the active pattern, a gate electrode disposed on the gate insulation layer and overlapping the active pattern, a first insulation layer disposed on the gate electrode and having a total amount of hydrogen of about 5 atomic percent (at. %) to about 30 at. %, and a source electrode and a drain electrode which are disposed on the first insulation layer and are electrically connected to the active pattern.Type: ApplicationFiled: September 19, 2019Publication date: April 9, 2020Inventors: Yung Bin CHUNG, Yeoungkeol WOO, Kwanghyun KIM, Sangwoo SOHN, Dokeun SONG, Sangwook LEE, Heon Sik HA
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Patent number: 10490614Abstract: A display device includes a thin film transistor, a gate insulting layer, an interlayer insulating layer, a data line, a spacer, and a pixel. The thin film transistor includes a semiconductor layer and a gate electrode. The semiconductor layer includes a source region and a drain region on respective sides of the channel region. The gate insulating layer is between the semiconductor layer and the gate electrode. The interlayer insulating layer covers the thin film transistor. The data line contacts the semiconductor layer via a hole passing through the gate insulating layer and the interlayer insulating layer. The spacer is on an inner wall of the hole and contacting the data line. The pixel electrode is electrically connected to the thin film transistor.Type: GrantFiled: October 10, 2017Date of Patent: November 26, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Subin Bae, Shinil Choi, Changok Kim, Chulmin Bae, Sanggab Kim, Sunghoon Yang, Yeoungkeol Woo, Yugwang Jeong
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Publication number: 20190326550Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.Type: ApplicationFiled: July 1, 2019Publication date: October 24, 2019Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
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Patent number: 10361393Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.Type: GrantFiled: April 25, 2017Date of Patent: July 23, 2019Assignee: Samsung Display Co., Ltd.Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
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Publication number: 20180166521Abstract: A display device includes a thin film transistor, a gate insulting layer, an interlayer insulating layer, a data line, a spacer, and a pixel. The thin film transistor includes a semiconductor layer and a gate electrode. The semiconductor layer includes a source region and a drain region on respective sides of the channel region. The gate insulating layer is between the semiconductor layer and the gate electrode. The interlayer insulating layer covers the thin film transistor. The data line contacts the semiconductor layer via a hole passing through the gate insulating layer and the interlayer insulating layer. The spacer is on an inner wall of the hole and contacting the data line. The pixel electrode is electrically connected to the thin film transistor.Type: ApplicationFiled: October 10, 2017Publication date: June 14, 2018Inventors: Subin BAE, Shinil CHOI, Changok KIM, Chulmin BAE, Sanggab KIM, Sunghoon YANG, Yeoungkeol WOO, Yugwang JEONG
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Publication number: 20170373270Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.Type: ApplicationFiled: April 25, 2017Publication date: December 28, 2017Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
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Publication number: 20170338288Abstract: A display device including a display panel including a light emitting device and a thin film sealing layer disposed on the light emitting device, the display panel providing a base surface, and a touch sensing member including a touch electrode layer and disposed on the base surface. The thin film sealing layer includes a first inorganic layer having a first content of hydrogen, and a second inorganic layer disposed on the first inorganic layer and having a second content of hydrogen less than the first content.Type: ApplicationFiled: May 11, 2017Publication date: November 23, 2017Inventors: SANGWOOK LEE, CHANGOK KIM, YEOUNGKEOL WOO