Patents by Inventor Seong-Yeun Kang
Seong-Yeun Kang 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: 20230292567Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.Type: ApplicationFiled: May 16, 2023Publication date: September 14, 2023Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
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Patent number: 11696477Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.Type: GrantFiled: August 12, 2021Date of Patent: July 4, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
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Publication number: 20210376052Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.Type: ApplicationFiled: August 12, 2021Publication date: December 2, 2021Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
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Patent number: 11107877Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.Type: GrantFiled: October 25, 2018Date of Patent: August 31, 2021Assignee: Samsung Display Co., Ltd.Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
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Publication number: 20190165084Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.Type: ApplicationFiled: October 25, 2018Publication date: May 30, 2019Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
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Patent number: 10204975Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a plurality of light emitting pixels disposed in a display region and including a first light emitting pixel and a second light emitting pixel, and a plurality of dummy pixels disposed in a dummy region and including a first dummy pixel and a second dummy pixel. The display also includes a plurality of repair lines including i) a first repair line configured to connect the first dummy pixel and the first and second light emitting pixels and ii) a second repair line configured to connect the second dummy pixel and the first and second light emitting pixels. A connection line is configured to connect the first and second repair lines, the first and second dummy pixel having layouts that are symmetrical.Type: GrantFiled: August 23, 2016Date of Patent: February 12, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Seong Yeun Kang
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Patent number: 10056023Abstract: A display device and a method of repairing the same are disclosed. In one aspect, the display device includes an OLED, a repair line electrically connected to a first dummy pixel and a second dummy pixel, and a repair modulation circuit electrically connected to the first and second dummy pixels. The first dummy pixel includes a first dummy pixel driving circuit configured to output a driving current corresponding to a data voltage of a selected pixel of the OLED to the repair line, when the selected pixel becomes defective, based on a first light emission control signal. The repair modulation circuit includes a capacitor configured to be initialized before the driving current is output from the first dummy pixel driving circuit. The capacitor of the repair modulation circuit is configured to be charged with the driving current when the driving current is output from the first dummy pixel driving circuit.Type: GrantFiled: April 22, 2016Date of Patent: August 21, 2018Assignee: Samsung Display Co., Ltd.Inventors: Seong Yeun Kang, Kyong Tae Park
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Patent number: 9734786Abstract: A source drive integrated circuit includes a source driving circuit, output buffers, and voltage protection circuits. The source driving circuit generates data voltages according to a source timing control signal and digital video data. The output buffers output the data voltages from the source driving circuit to output terminals. The voltage protection circuits are connected between the output buffers and the output terminals. A voltage supplied to at least one of the voltage protection circuits is different from a voltage supplied to remaining ones of the voltage protection circuits.Type: GrantFiled: May 6, 2015Date of Patent: August 15, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyong-Tae Park, Seong-Yeun Kang, Jung-Hoon Kim, Tae-Gon Kim, Dong-Yoon So
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Publication number: 20170062544Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a plurality of light emitting pixels disposed in a display region and including a first light emitting pixel and a second light emitting pixel, and a plurality of dummy pixels disposed in a dummy region and including a first dummy pixel and a second dummy pixel. The display also includes a plurality of repair lines including i) a first repair line configured to connect the first dummy pixel and the first and second light emitting pixels and ii) a second repair line configured to connect the second dummy pixel and the first and second light emitting pixels. A connection line is configured to connect the first and second repair lines, the first and second dummy pixel having layouts that are symmetrical.Type: ApplicationFiled: August 23, 2016Publication date: March 2, 2017Inventor: Seong Yeun Kang
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Publication number: 20160335950Abstract: A display device and a method of repairing the same are disclosed. In one aspect, the display device includes an OLED, a repair line electrically connected to a first dummy pixel and a second dummy pixel, and a repair modulation circuit electrically connected to the first and second dummy pixels. The first dummy pixel includes a first dummy pixel driving circuit configured to output a driving current corresponding to a data voltage of a selected pixel of the OLED to the repair line, when the selected pixel becomes defective, based on a first light emission control signal. The repair modulation circuit includes a capacitor configured to be initialized before the driving current is output from the first dummy pixel driving circuit. The capacitor of the repair modulation circuit is configured to be charged with the driving current when the driving current is output from the first dummy pixel driving circuit.Type: ApplicationFiled: April 22, 2016Publication date: November 17, 2016Inventors: Seong Yeun Kang, Kyong Tae Park
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Publication number: 20160086563Abstract: A source drive integrated circuit includes a source driving circuit, output buffers, and voltage protection circuits. The source driving circuit generates data voltages according to a source timing control signal and digital video data. The output buffers output the data voltages from the source driving circuit to output terminals. The voltage protection circuits are connected between the output buffers and the output terminals. A voltage supplied to at least one of the voltage protection circuits is different from a voltage supplied to remaining ones of the voltage protection circuits.Type: ApplicationFiled: May 6, 2015Publication date: March 24, 2016Inventors: Kyong-Tae PARK, Seong-Yeun KANG, Jung-Hoon KIM, Tae-Gon KIM, Dong-Yoon SO
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Patent number: 8964141Abstract: A thin film transistor, a manufacturing method thereof, and a display device having the same are disclosed. The thin film transistor includes a semiconductor layer formed on a substrate, a gate insulating layer formed on the substrate including the semiconductor layer, a gate electrode formed on the gate insulating above the semiconductor layer, source and drain electrodes connected to the semiconductor layer, and 3.5 to 4.5 protrusions formed on the semiconductor layer overlapped with the gate electrode. Malfunction of the thin film transistor and inferior image quality of the display device can be prevented by adjusting the number of protrusions to minimize leakage current and defects.Type: GrantFiled: December 13, 2010Date of Patent: February 24, 2015Assignee: Samsung Display Co., Ltd.Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Jin-Suk Park, Seong-Yeun Kang
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Patent number: 8610124Abstract: A display device capable of implementing the light shielding effect and process simplification, and a method of manufacturing the display device. The display device includes a transistor formed in a first region on a substrate, a pixel electrode formed in a second region on the substrate, a buffer layer formed beneath the transistor in the first region, and a light shielding layer formed between the buffer layer and the substrate in the first region. In the display device, the light shielding layer may include a semiconductor material.Type: GrantFiled: April 5, 2011Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Seong-Yeun Kang, Jin-Suk Park
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Publication number: 20110241005Abstract: A display device capable of implementing the light shielding effect and process simplification, and a method of manufacturing the display device. The display device includes a transistor formed in a first region on a substrate, a pixel electrode formed in a second region on the substrate, a buffer layer formed beneath the transistor in the first region, and a light shielding layer formed between the buffer layer and the substrate in the first region. In the display device, the light shielding layer may include a semiconductor material.Type: ApplicationFiled: April 5, 2011Publication date: October 6, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Seong-Yeun Kang, Jin-Suk Park
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Publication number: 20110221991Abstract: A thin film transistor, a manufacturing method thereof, and a display device having the same are disclosed. The thin film transistor includes a semiconductor layer formed on a substrate, a gate insulating layer formed on the substrate including the semiconductor layer, a gate electrode formed on the gate insulating above the semiconductor layer, source and drain electrodes connected to the semiconductor layer, and 3.5 to 4.5 protrusions formed on the semiconductor layer overlapped with the gate electrode. Malfunction of the thin film transistor and inferior image quality of the display device can be prevented by adjusting the number of protrusions to minimize leakage current and defects.Type: ApplicationFiled: December 13, 2010Publication date: September 15, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Jin-Suk Park, Seong-Yeun Kang
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Publication number: 20080114110Abstract: An antistatic composition, a transfer roller manufactured by using the antistatic composition, and a method of manufacturing the same are provided. The antistatic composition includes about 0.05 to about 5 parts by weight of an antistatic agent including a metal salt compound, about 10 to about 50 parts by weight of a thermoplastic elastomer, and about 100 parts by weight of a base resin. The antistatic agent includes the metal salt compound and an ether compound. The metal salt compound includes an alkali metal salt compound.Type: ApplicationFiled: November 14, 2007Publication date: May 15, 2008Inventors: Eun-Chul Lee, Kwang-Suck Suh, Heui-Soo Moon, Tae-Young Kim, Chul-Heum Lee, Do-Yoon Kim, Seong-Yeun Kang, In-Han Lee, In-Shik Park, Tue-Hee Lee