Patents by Inventor Byung-Yong Ahn
Byung-Yong Ahn 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).
-
Publication number: 20240196666Abstract: Disclosed are a display panel, which is capable of reducing mura at low grayscale, and a method of manufacturing the same. The thickness of a gate insulating layer of a driving thin-film transistor is increased, and the mobility of the driving thin-film transistor is reduced to reduce the K-factor of the driving thin-film transistor. The display panel includes a plurality of sub-pixels, each having a driving thin-film transistor, a switching thin-film transistor, and a storage capacitor on a substrate. The driving thin-film transistor includes a semiconductor layer comprising a source region and a drain region; a gate electrode overlapping the semiconductor layer; a source electrode and a drain electrode electrically connected to the source region and the drain region; and a gate insulating layer located between the semiconductor layer and the gate electrode. The semiconductor layer is a dehydrogenated semiconductor layer.Type: ApplicationFiled: August 21, 2023Publication date: June 13, 2024Applicant: LG DISPLAY CO., LTD.Inventors: Byung Yong AHN, Won So SON, Chang Hyeon CHO
-
Patent number: 8519399Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.Type: GrantFiled: July 6, 2012Date of Patent: August 27, 2013Assignee: LG Display Co., Ltd.Inventors: Kyo-Ho Moon, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
-
Patent number: 8400604Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.Type: GrantFiled: August 4, 2010Date of Patent: March 19, 2013Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Publication number: 20120267631Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.Type: ApplicationFiled: July 6, 2012Publication date: October 25, 2012Inventors: Kyo-Ho MOON, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
-
Patent number: 8237163Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.Type: GrantFiled: December 17, 2009Date of Patent: August 7, 2012Assignee: LG Display Co., Ltd.Inventors: Kyo-Ho Moon, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
-
Patent number: 8178883Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.Type: GrantFiled: December 8, 2008Date of Patent: May 15, 2012Assignee: LG Display Co., Ltd.Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Patent number: 7960199Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on the semiconductor layer corresponding to the channel to protect the semiconductor layer.Type: GrantFiled: August 14, 2009Date of Patent: June 14, 2011Assignee: LG Display Co., Ltd.Inventors: Young Seok Choi, Byung Yong Ahn, Ki Su Cho, Hong Woo Yu
-
Patent number: 7856840Abstract: The present invention relates to a dehumidifier having high dehumidifying efficiency, low noise and vibration. The dehumidifier includes a case, inlets passed through the case for introduction of air from an outside of the case to an inside of the case, an outlet formed to pass through a top of the case for discharging air dehumidified in the case to the outside of the case, a desiccant assembly for absorbing moisture from air drawn into the case, a blower assembly for drawing air through the inlets and blowing the air to the outlet, a regenerator assembly for blowing hot air to the desiccant assembly for drying the desiccant assembly, a heat exchanger for condensing high temperature, humid air blown by the regenerator assembly through the desiccant assembly, to separate the moisture from the air, and a water collecting assembly for collecting water condensed and separated from the air at the heat exchanger.Type: GrantFiled: June 12, 2006Date of Patent: December 28, 2010Assignee: LG Electronics Inc.Inventors: Sang Youn Yoon, Byung Yong Ahn
-
Publication number: 20100315584Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.Type: ApplicationFiled: August 4, 2010Publication date: December 16, 2010Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Patent number: 7796225Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.Type: GrantFiled: December 15, 2006Date of Patent: September 14, 2010Assignee: LG Display Co., Ltd.Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Publication number: 20100155733Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: LG Display Co., Ltd.Inventors: Kyo-Ho Moon, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
-
Patent number: 7649581Abstract: Disclosed is an array substrate of an LCD, and a method for fabricating it, which simplifies the fabrication process, thereby reducing fabrication costs. The process is simplified because the array substrate does not have a passivation film. The thin film transistors on the array substrate each have an active layer that is protected from contamination by forming a channel insulation layer on the active layer through a dry-etching process. Further, the gate line, gate pad, and gate electrode may have a two-layer structure having a low-resistance metal layer and a barrier metal layer, or a three-layer structure having a low-resistance metal layer and two barrier metal layers.Type: GrantFiled: June 21, 2005Date of Patent: January 19, 2010Assignee: LG Display Co., Ltd.Inventors: Young Seok Choi, Byung Yong Ahn, Hong Woo Yu, Ki Sul Cho
-
Publication number: 20100001278Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on the semiconductor layer corresponding to the channel to protect the semiconductor layer.Type: ApplicationFiled: August 14, 2009Publication date: January 7, 2010Applicant: LG Display Co., Ltd.Inventors: Young Seok Choi, Byung Yong Ahn, Ki Sul Cho, Hong Woo Yu
-
Patent number: 7589030Abstract: A method of fabricating a liquid crystal display device includes performing a first mask process to form a gate line, a gate pad, and a gate electrode on a substrate. The method of fabricating a liquid crystal display device further includes performing a second mask process to form an active layer on the gate electrode, performing a third mask process to form a pixel electrode contacting the active layer, and performing a fourth mask process to form a source electrode and a drain electrode on the active layer.Type: GrantFiled: June 27, 2006Date of Patent: September 15, 2009Assignee: LG. Display Co., Ltd.Inventors: Ki Sul Cho, Young Seok Choi, Byung Yong Ahn, Tae Ung Hwang, Dong Jun Min, Bo Kyoung Jung
-
Patent number: 7586123Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on-the semiconductor layer corresponding to the channel to protect the semiconductor layer.Type: GrantFiled: June 10, 2005Date of Patent: September 8, 2009Assignee: LG. Display Co., Ltd.Inventors: Young Seok Choi, Byung Yong Ahn, Ki Sul Cho, Hong Woo Yu
-
Publication number: 20090159895Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.Type: ApplicationFiled: December 8, 2008Publication date: June 25, 2009Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Patent number: 7479419Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.Type: GrantFiled: December 16, 2005Date of Patent: January 20, 2009Assignee: LG Display Co., Ltd.Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Patent number: 7422656Abstract: A dry etching step during the manufacturing of a substrate for a liquid crystal display (LCD) device is improved by placing the substrate at a predetermined distance away from the lower electrode to prevent damage of the substrate due to electrostatic formed therebetween. An insulating tape attached on the lower electrode provides electrostatic protection between the substrate and the lower electrode, so that the substrate is properly lifted off the lower electrode via the lifting pins of the lower electrode without electrostatic interference.Type: GrantFiled: December 20, 2004Date of Patent: September 9, 2008Assignee: LG Display Co., Ltd.Inventor: Byung-Yong Ahn
-
Publication number: 20070153198Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.Type: ApplicationFiled: December 15, 2006Publication date: July 5, 2007Inventors: Ki-sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
-
Publication number: 20060262244Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.Type: ApplicationFiled: December 16, 2005Publication date: November 23, 2006Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung