Patents by Inventor Dae Won CHOI
Dae Won CHOI 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: 11502144Abstract: A display device includes a first base, a pixel electrode on the first base, a pixel defining layer having an opening that at least partially exposes the pixel electrode, a light emitting layer on the pixel electrode, an auxiliary electrode on the same layer as the pixel electrode, a partition wall on the auxiliary electrode that at least partially exposes a side surface of the auxiliary electrode, an organic layer on the partition wall, and a common electrode continuously arranged on the light emitting layer and the organic layer, wherein a side surface of the partition wall has a reverse-tapered shape, and the common electrode contacts the side surface of the auxiliary electrode.Type: GrantFiled: April 2, 2020Date of Patent: November 15, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hyun Min Cho, Tae Wook Kang, Tae Sung Kim, Dae Won Choi, Sang Gab Kim
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Publication number: 20220254863Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.Type: ApplicationFiled: April 29, 2022Publication date: August 11, 2022Inventors: Kyeong Su KO, Joon Yong Park, Gyung Min Baek, Hyun Min Cho, Dae Won Choi
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Publication number: 20220229322Abstract: A display device includes a thin film transistor on a base substrate and a signal wiring electrically connected to the thin film transistor. The signal wiring includes a main conductive layer including copper, and a capping layer including titanium the capping layer overlapping a portion of an upper surface of the main conductive layer. The signal wiring has a taper angle in a range of about 70° to about 90°. A thickness of the capping layer is in a range of about 100 ? to about 300 ?, and a thickness of the main conductive layer is in a range of about 1,000 ? to about 20,000 ?.Type: ApplicationFiled: April 5, 2022Publication date: July 21, 2022Applicant: Samsung Display Co., LTD.Inventors: Seon-Il KIM, Sung Won CHO, Sang Gab KIM, Su Bin BAE, Yu-Gwang JEONG, Dae Won CHOI
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Patent number: 11380753Abstract: A display device includes a base substrate; an organic layer disposed on the base substrate; and a first conductive layer disposed on the organic layer, wherein the first conductive layer includes a plurality of stacked films, the plurality of stacked films include a first conductive film disposed directly on the organic layer and a second conductive film disposed on the first conductive film, and the first conductive film has an oxygen concentration higher than an oxygen concentration of the second conductive film.Type: GrantFiled: June 12, 2020Date of Patent: July 5, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang Gab Kim, Tae Sung Kim, Joon Geol Lee, Hyun Min Cho, Dae Won Choi, Yun Jong Yeo
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Publication number: 20220165805Abstract: A display device includes a display panel including a main portion, a first bent portion and a second bent portion each extending from the main portion, and a corner portion which connects the first bent portion and the second bent portion to each other and is bendable relative to the main portion.Type: ApplicationFiled: September 7, 2021Publication date: May 26, 2022Inventors: Dae Won CHOI, Dong Won KIM, Sang Gab KIM, Sang Woo KIM, Gyu Jeong LEE, Sung Won CHO
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Patent number: 11342404Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.Type: GrantFiled: June 8, 2020Date of Patent: May 24, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyeong Su Ko, Joon Yong Park, Gyung Min Baek, Hyun Min Cho, Dae Won Choi
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Patent number: 11320712Abstract: A display device includes a thin film transistor on a base substrate and a signal wiring electrically connected to the thin film transistor. The signal wiring includes a main conductive layer including copper, and a capping layer including titanium the capping layer overlapping a portion of an upper surface of the main conductive layer. The signal wiring has a taper angle in a range of about 70° to about 90°. A thickness of the capping layer is in a range of about 100 ? to about 300 ?, and a thickness of the main conductive layer is in a range of about 1,000 ? to about 20,000 ?.Type: GrantFiled: June 18, 2020Date of Patent: May 3, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seon-Il Kim, Sung Won Cho, Sang Gab Kim, Su Bin Bae, Yu-Gwang Jeong, Dae Won Choi
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Publication number: 20220085341Abstract: An etching device includes a chamber; a stage disposed in the chamber and on which a target substrate is loaded; a gas distribution unit disposed to face the stage in the chamber; a plurality of plasma generation modules disposed above the chamber; a gas supply unit that supplies gas into the chamber; a gas line connecting the gas supply unit and the plurality of plasma generation modules; and a plurality of gas inlet pipes each including an end connected to the plasma generation module and another end connected to the gas distribution unit.Type: ApplicationFiled: May 5, 2021Publication date: March 17, 2022Applicant: Samsung Display Co., LTD.Inventors: Dae Soo KIM, Sang Gab KIM, Yun Jong YEO, Ju Hee LEE, Soo Beom JO, Dae Won CHOI
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Publication number: 20210173259Abstract: A light control member includes a light control substrate including a surface, and a scalene prism disposed on the light control substrate. The scalene prism includes a first side surface extended at a first angle with respect to the surface of the light control substrate, and a second side surface extended at a second angle with respect to the surface of the light control substrate, the second angle being greater than the first angle. The light control member includes an etching stopper disposed on the scalene prism, and at least one absorption pattern disposed on the etching stopper on the second side surface of the scalene prism.Type: ApplicationFiled: September 16, 2020Publication date: June 10, 2021Applicant: Samsung Display Co., LTD.Inventors: Sung Won CHO, Yun Jong YEO, Seon Il KIM, Youn Joon KIM, Dae Won CHOI
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Publication number: 20210132424Abstract: A display device includes a thin film transistor on a base substrate and a signal wiring electrically connected to the thin film transistor. The signal wiring includes a main conductive layer including copper, and a capping layer including titanium the capping layer overlapping a portion of an upper surface of the main conductive layer. The signal wiring has a taper angle in a range of about 70° to about 90°. A thickness of the capping layer is in a range of about 100 ? to about 300 ?, and a thickness of the main conductive layer is in a range of about 1,000 ? to about 20,000 ?.Type: ApplicationFiled: June 18, 2020Publication date: May 6, 2021Applicant: Samsung Display Co., LTD.Inventors: Seon-Il KIM, Sung Won CHO, Sang Gab KIM, Su Bin BAE, Yu-Gwang JEONG, Dae Won CHOI
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Publication number: 20210057504Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.Type: ApplicationFiled: June 8, 2020Publication date: February 25, 2021Inventors: Kyeong Su KO, Joon Yong PARK, Gyung Min BAEK, Hyun Min CHO, Dae Won CHOI
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Publication number: 20210036073Abstract: A display device includes a first base, a pixel electrode on the first base, a pixel defining layer having an opening that at least partially exposes the pixel electrode, a light emitting layer on the pixel electrode, an auxiliary electrode on the same layer as the pixel electrode, a partition wall on the auxiliary electrode that at least partially exposes a side surface of the auxiliary electrode, an organic layer on the partition wall, and a common electrode continuously arranged on the light emitting layer and the organic layer, wherein a side surface of the partition wall has a reverse-tapered shape, and the common electrode contacts the side surface of the auxiliary electrode.Type: ApplicationFiled: April 2, 2020Publication date: February 4, 2021Inventors: Hyun Min CHO, Tae Wook KANG, Tae Sung KIM, Dae Won CHOI, Sang Gab KIM
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Publication number: 20210013288Abstract: A display device includes a base substrate; an organic layer disposed on the base substrate; and a first conductive layer disposed on the organic layer, wherein the first conductive layer includes a plurality of stacked films, the plurality of stacked films include a first conductive film disposed directly on the organic layer and a second conductive film disposed on the first conductive film, and the first conductive film has an oxygen concentration higher than an oxygen concentration of the second conductive film.Type: ApplicationFiled: June 12, 2020Publication date: January 14, 2021Inventors: Sang Gab KIM, Tae Sung KIM, Joon Geol LEE, Hyun Min CHO, Dae Won CHOI, Yun Jong YEO
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Patent number: 10811478Abstract: An organic light-emitting diode display device includes a pixel electrode, a pixel-defining layer, an organic emission layer, and a counter electrode. The pixel-defining layer includes an opening partially exposing the pixel electrode. The organic emission layer is disposed on the pixel electrode. The organic emission layer is disposed in the opening. The counter electrode is disposed on the organic emission layer. The counter electrode opposes the pixel electrode. The pixel-defining layer includes a first pixel-defining layer and a second pixel-defining layer. The first pixel-defining layer is disposed on the pixel electrode and includes an inorganic material. The second pixel-defining layer is disposed on the first pixel-defining layer and includes an organic material. A sidewall of the first pixel-defining layer that is closest to the opening is aligned with a sidewall of the second pixel-defining layer that is closest to the opening.Type: GrantFiled: April 3, 2019Date of Patent: October 20, 2020Assignee: Samsung Display Co., Ltd.Inventors: Dae Won Choi, Tae Wook Kang, Kyeong Su Ko, Sang Gab Kim, Tae Sung Kim, Joon Geol Lee, Hyun Min Cho
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Publication number: 20200043998Abstract: An organic light-emitting diode display device includes a pixel electrode, a pixel-defining layer, an organic emission layer, and a counter electrode. The pixel-defining layer includes an opening partially exposing the pixel electrode. The organic emission layer is disposed on the pixel electrode. The organic emission layer is disposed in the opening. The counter electrode is disposed on the organic emission layer. The counter electrode opposes the pixel electrode. The pixel-defining layer includes a first pixel-defining layer and a second pixel-defining layer. The first pixel-defining layer is disposed on the pixel electrode and includes an inorganic material. The second pixel-defining layer is disposed on the first pixel-defining layer and includes an organic material. A sidewall of the first pixel-defining layer that is closest to the opening is aligned with a sidewall of the second pixel-defining layer that is closest to the opening.Type: ApplicationFiled: April 3, 2019Publication date: February 6, 2020Inventors: Dae Won Choi, Tae Wook Kang, Kyeong Su Ko, Sang Gab Kim, Tae Sung Kim, Joon Geol Lee, Hyun Min Cho
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Patent number: 10209440Abstract: An imaging sensor includes at least one fiber Bragg grating for filtering an image from a subject for wavelength bands, and an imaging device for converting an image transmitted through the fiber Bragg grating into a digital signal.Type: GrantFiled: August 26, 2016Date of Patent: February 19, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mun Seob Lee, Nack Woo Kim, Gi Hyeon Min, Byung-Tak Lee, Young Sun Kim, Sim-Kwon Yoon, Dae Won Choi
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Patent number: 10057451Abstract: Disclosed herein are an astral lamp device having detachable and angle-controllable LED module blocks and a method of setting the same. The astral lamp device having detachable and angle-controllable LED module blocks, includes a plurality of LED module blocks having one end attached to and disposed on a central frame; and an angle control part configured to control an angle of the LED module block attached to the central frame.Type: GrantFiled: September 29, 2015Date of Patent: August 21, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong Eun Kim, Hyun Seo Kang, Hyoung Jun Park, Dae Won Choi, Jai Sang Koh, Keo Sik Kim, Young Sun Kim, Ji Hyoung Ryu, Kwon Seob Lim, Eun Kyoung Jeon, Young Soon Heo
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Publication number: 20170227707Abstract: An imaging sensor includes at least one fiber Bragg grating for filtering an image from a subject for wavelength bands, and an imaging device for converting an image transmitted through the fiber Bragg grating into a digital signal.Type: ApplicationFiled: August 26, 2016Publication date: August 10, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mun Seob LEE, Nack Woo KIM, Gi Hyeon MIN, Byung-Tak LEE, Young Sun KIM, Sim-Kwon YOON, Dae Won CHOI
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Publication number: 20160097518Abstract: Disclosed herein are an astral lamp device having detachable and angle-controllable LED module blocks and a method of setting the same. The astral lamp device having detachable and angle-controllable LED module blocks, includes a plurality of LED module blocks having one end attached to and disposed on a central frame; and an angle control part configured to control an angle of the LED module block attached to the central frame.Type: ApplicationFiled: September 29, 2015Publication date: April 7, 2016Inventors: Jeong Eun KIM, Hyun Seo KANG, Hyoung Jun PARK, Dae Won CHOI, Jai Sang KOH, Keo Sik KIM, Young Sun KIM, Ji Hyoung RYU, Kwon Seob LIM, Eun Kyoung JEON, Young Soon HEO