Patents by Inventor Yu-Sok Lim
Yu-Sok Lim 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: 11017721Abstract: The present disclosure relates to an organic light emitting display device including a display panel on which a plurality of data lines, a plurality of gate lines, a plurality of first power lines, a plurality of second power lines, and a plurality of pixels are disposed. Each of the plurality of pixels includes: a storage capacitor connected between a first node and a second node; a driving transistor including a gate electrode connected to the second node, a drain electrode connected to the power line, and a source electrode connected to the first node; an organic light emitting diode connected to the first node and the second power line; a first switching transistor connected to the second node and the data lines; and a second switching transistor connected to the first node and the first power lines.Type: GrantFiled: July 31, 2018Date of Patent: May 25, 2021Assignee: LG Display Co., Ltd.Inventors: So Hyun Kim, Yu Sok Lim
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Publication number: 20200234646Abstract: The present disclosure relates to an organic light emitting display device including a display panel on which a plurality of data lines, a plurality of gate lines, a plurality of first power lines, a plurality of second power lines, and a plurality of pixels are disposed. Each of the plurality of pixels includes: a storage capacitor connected between a first node and a second node; a driving transistor including a gate electrode connected to the second node, a drain electrode connected to the power line, and a source electrode connected to the first node; an organic light emitting diode connected to the first node and the second power line; a first switching transistor connected to the second node and the data lines; and a second switching transistor connected to the first node and the first power lines.Type: ApplicationFiled: July 31, 2018Publication date: July 23, 2020Inventors: So Hyun KIM, Yu Sok LIM
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Patent number: 10176746Abstract: Provided is a gate driver and a method of driving the same, which enables a voltage level of a Q node to be stably maintained in a blank section by: inputting a clock signal that directly provides a high level to the Q node through a reset signal input end of a reset signal for resetting the Q node of a gate driver integrated circuit; inputting a reset signal for each blank section between frames; or providing a higher gate high voltage and a lower gate low voltage. There may be provided a gate driver integrated circuit that has a robust structure with high reliability and avoids an error of a scan signal by maintaining the voltage level of the Q node to be stable in the blank section, and a method of driving the same.Type: GrantFiled: December 21, 2016Date of Patent: January 8, 2019Assignee: LG Display Co., Ltd.Inventors: Yu Sok Lim, Hyerin Kim
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Publication number: 20180033363Abstract: Provided is a gate driver and a method of driving the same, which enables a voltage level of a Q node to be stably maintained in a blank section by: inputting a clock signal that directly provides a high level to the Q node through a reset signal input end of a reset signal for resetting the Q node of a gate driver integrated circuit; inputting a reset signal for each blank section between frames; or providing a higher gate high voltage and a lower gate low voltage. There may be provided a gate driver integrated circuit that has a robust structure with high reliability and avoids an error of a scan signal by maintaining the voltage level of the Q node to be stable in the blank section, and a method of driving the same.Type: ApplicationFiled: December 21, 2016Publication date: February 1, 2018Inventors: Yu Sok LIM, Hyerin KIM
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Patent number: 9274398Abstract: An electrophoretic display device includes a switching element on a substrate including a display area having a pixel region and a non-display area at a periphery of the display area, a passivation layer covering the switching element, a pixel electrode on the passivation layer and connected to the switching element, an electrophoresis film on the pixel electrode and including an ink layer and a base film, wherein the ink layer includes a plurality of charged particles, and the base film is formed of polyethylene terephthalate, a common electrode for generating an electric field with the pixel electrode to drive the electrophoresis film, and a color filter layer directly on the electrophoresis film, wherein the color filter layer is formed under temperatures of less than 100 degrees of Celsius.Type: GrantFiled: January 26, 2015Date of Patent: March 1, 2016Assignee: LG Display Co., Ltd.Inventors: Oh-Nam Kwon, Nack-Bong Choi, Choon-Ho Park, Yu-Sok Lim, Jong-Kwon Lee
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Patent number: 9209414Abstract: A display device is discussed which can include: a flexible substrate defined into a first area, a second area bent from an edge of the first area, and a third area outwardly expanded from the second area; a thin film transistor layer disposed on the substrate; an organic emission layer disposed on the thin film transistor layer; an encapsulation layer disposed on the organic emission layer; a polarization layer disposed on the encapsulation layer; and a cover window disposed on the polarization layer. The polarization layer is formed on the encapsulation layer opposite to the first and third areas of the substrate.Type: GrantFiled: November 24, 2014Date of Patent: December 8, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Yu Sok Lim, Byung Chul Ahn, Chang Dong Kim, Tae Joon Ahn, Sang Moo Song
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Publication number: 20150144921Abstract: A display device is discussed which can include: a flexible substrate defined into a first area, a second area bent from an edge of the first area, and a third area outwardly expanded from the second area; a thin film transistor layer disposed on the substrate; an organic emission layer disposed on the thin film transistor layer; an encapsulation layer disposed on the organic emission layer; a polarization layer disposed on the encapsulation layer; and a cover window disposed on the polarization layer. The polarization layer is formed on the encapsulation layer opposite to the first and third areas of the substrate.Type: ApplicationFiled: November 24, 2014Publication date: May 28, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Yu Sok LIM, Byung Chul AHN, Chang Dong KIM, Tae Joon AHN, Sang Moo SONG
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Publication number: 20150138626Abstract: An electrophoretic display device includes a switching element on a substrate including a display area having a pixel region and a non-display area at a periphery of the display area, a passivation layer covering the switching element, a pixel electrode on the passivation layer and connected to the switching element, an electrophoresis film on the pixel electrode and including an ink layer and a base film, wherein the ink layer includes a plurality of charged particles, and the base film is formed of polyethylene terephthalate, a common electrode for generating an electric field with the pixel electrode to drive the electrophoresis film, and a color filter layer directly on the electrophoresis film, wherein the color filter layer is formed under temperatures of less than 100 degrees of Celsius.Type: ApplicationFiled: January 26, 2015Publication date: May 21, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Oh-Nam KWON, Nack-Bong CHOI, Choon-Ho PARK, Yu-Sok LIM, Jong-Kwon LEE
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Patent number: 8970942Abstract: An electrophoretic display device includes a switching element on a substrate including a display area having a pixel region and a non-display area at a periphery of the display area, a passivation layer covering the switching element, a pixel electrode on the passivation layer and connected to the switching element, an electrophoresis film on the pixel electrode and including an ink layer and a base film, wherein the ink layer includes a plurality of charged particles, and the base film is formed of polyethylene terephthalate, a common electrode for generating an electric field with the pixel electrode to drive the electrophoresis film, and a color filter layer directly on the electrophoresis film, wherein the color filter layer is formed under temperatures of less than 100 degrees of Celsius.Type: GrantFiled: July 21, 2010Date of Patent: March 3, 2015Assignee: LG Display Co., Ltd.Inventors: Oh-Nam Kwon, Nack-Bong Choi, Choon-Ho Park, Yu-Sok Lim, Jong-Kwon Lee
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Patent number: 8861069Abstract: Disclosed is an electrophoretic display (EPD) device and fabrication method thereof that has a simplified fabrication process and reduced fabrication costs. In the EPD device, a partition wall is formed directly on a first substrate having a pixel electrode and extended up a lateral surface of the partition wall to prevent dead areas in the pixel region, provide increased aperture ratio, and enhanced image quality.Type: GrantFiled: June 30, 2011Date of Patent: October 14, 2014Assignee: LG Display Co., Ltd.Inventors: Yu-Sok Lim, Oh-Nam Kwon, Seung-Han Paek, Choon-Ho Park
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Patent number: 8844128Abstract: A method for manufacturing an electrophoretic display device includes forming partition walls for defining a plurality of pixel regions on a lower substrate; filling charged particles into the plurality of pixel regions; filling a pixel solvent in the plurality of pixel regions having been filled with the charged particles; and attaching the lower substrate and an upper substrate to each other.Type: GrantFiled: September 8, 2011Date of Patent: September 30, 2014Assignee: LG Display Co., Ltd.Inventors: Yu Sok Lim, Myoung Ho Lee, Young Mu Oh, Seung Han Paek, Young Jun Yu, Sung Jin Park, Seung-Hee Kang
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Patent number: 8570640Abstract: Disclosed herein is a method of fabricating an electrophoretic display device for reducing the fabrication cost and simplifying the fabrication process, and the method may include providing a substrate comprising a display region arranged with a plurality of pixels and a non-display region; forming a thin-film transistor on a first substrate; forming a passivation layer on the substrate formed with the thin-film transistor; forming a pixel electrode in the display region on the passivation layer and forming a partition wall in the non-display region; filling an electrophoretic material in a pixel inside the partition wall on the passivation layer; applying a sealing material to an upper portion of the electrophoretic material to form a sealing layer; depositing a transparent conductive material on the sealing layer to form a common electrode; and adhering the protection layer to an upper portion of the common electrode.Type: GrantFiled: August 30, 2011Date of Patent: October 29, 2013Assignee: LG Display Co., Ltd.Inventors: Yu-Sok Lim, Young-Jun Yu
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Publication number: 20120073116Abstract: A method for manufacturing an electrophoretic display device includes forming partition walls for defining a plurality of pixel regions on a lower substrate; filling charged particles into the plurality of pixel regions; filling a pixel solvent in the plurality of pixel regions having been filled with the charged particles; and attaching the lower substrate and an upper substrate to each other.Type: ApplicationFiled: September 8, 2011Publication date: March 29, 2012Inventors: Yu Sok LIM, Myoung Ho LEE, Young Mu OH, Seung Han PAEK, Young Jun YU, Sung Jin PARK, Seung-Hee KANG
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Publication number: 20120050840Abstract: Disclosed herein is a method of fabricating an electrophoretic display device for reducing the fabrication cost and simplifying the fabrication process, and the method may include providing a substrate comprising a display region arranged with a plurality of pixels and a non-display region; forming a thin-film transistor on a first substrate; forming a passivation layer on the substrate formed with the thin-film transistor; forming a pixel electrode in the display region on the passivation layer and forming a partition wall in the non-display region; filling an electrophoretic material in a pixel inside the partition wall on the passivation layer; applying a sealing material to an upper portion of the electrophoretic material to form a sealing layer; depositing a transparent conductive material on the sealing layer to form a common electrode; and adhering the protection layer to an upper portion of the common electrode.Type: ApplicationFiled: August 30, 2011Publication date: March 1, 2012Inventors: Yu-Sok LIM, Young-Jun Yu
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Publication number: 20120008191Abstract: Disclosed is an electrophoretic display (EPD) device and fabrication method thereof that has a simplified fabrication process and reduced fabrication costs. In the EPD device, a partition wall is formed directly on a first substrate having a pixel electrode and extended up a lateral surface of the partition wall to prevent dead areas in the pixel region, provide increased aperture ratio, and enhanced image quality.Type: ApplicationFiled: June 30, 2011Publication date: January 12, 2012Inventors: Yu-Sok LIM, Oh-Nam Kwon, Seung-Han Paek, Choon-Ho Park
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Publication number: 20110026099Abstract: An electrophoretic display device includes a switching element on a substrate including a display area having a pixel region and a non-display area at a periphery of the display area, a passivation layer covering the switching element, a pixel electrode on the passivation layer and connected to the switching element, an electrophoresis film on the pixel electrode and including an ink layer and a base film, wherein the ink layer includes a plurality of charged particles, and the base film is formed of polyethylene terephthalate, a common electrode for generating an electric field with the pixel electrode to drive the electrophoresis film, and a color filter layer directly on the electrophoresis film, wherein the color filter layer is formed under temperatures of less than 100 degrees of Celsius.Type: ApplicationFiled: July 21, 2010Publication date: February 3, 2011Inventors: Oh-Nam Kwon, Nack-Bong Choi, Choon-Ho Park, Yu-Sok Lim, Jong-Kwon Lee