Patents by Inventor Kwang Seop Park
Kwang Seop Park 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: 7884915Abstract: A method of manufacturing an LCD device includes forming a gate bus line, a gate insulating layer, an active layer, and a source/drain metal layer on a transparent insulating substrate; etching the source/drain metal layer and active layer to form a source/drain electrode and a channel layer while forming a metal protection pattern in a peripheral region of the transparent insulating substrate; forming a protection layer and a pixel electrode on the insulating substrate; forming a main seal line at an interior region of the array substrate, forming a first auxiliary seal line between the metal protection pattern and the main seal line, and forming second and third auxiliary seal lines; and attaching a color filter substrate to the array substrate via the main seal line.Type: GrantFiled: March 16, 2007Date of Patent: February 8, 2011Assignee: LG Display Co., Ltd.Inventor: Kwang Seop Park
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Patent number: 7436461Abstract: A liquid crystal display device is formed wherein pattern defects generated during the process are eliminated to reduce the need for repairs. In the device, a trench-shaped hole is defined by patterning a passivation layer and a gate-insulating layer at the peripheries of a gate line and a data line to expose a transparent substrate. Accordingly, a protruding defect portion at the pixel area caused by pattern defects in the semiconductor layer and the gate line is removed by the trench-shaped holes defined by patterning the passivation layer and the gate insulating layer at the peripheries of the gate line and the data line, so that a separate repair process is not required.Type: GrantFiled: December 20, 2000Date of Patent: October 14, 2008Assignee: LG Display Co., Ltd.Inventors: Woo Hyuk Choi, Kwang Seop Park
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Patent number: 7214115Abstract: A method of manufacturing an LCD device includes forming a gate bus line, a gate insulating layer, an active layer, and a source/drain metal layer on a transparent insulating substrate; etching the source/drain metal layer and active layer to form a source/drain electrode and a channel layer while forming a metal protection pattern in a peripheral region of the transparent insulating substrate; forming a protection layer and a pixel electrode on the insulating substrate; forming a main seal line at an interior region of the array substrate, forming a first auxiliary seal line between the metal protection pattern and the main seal line, and forming second and third auxiliary seal lines; and attaching a color filter substrate to the array substrate via the main seal line.Type: GrantFiled: November 10, 2003Date of Patent: May 8, 2007Assignee: LG.Philips LCD Co., Ltd.Inventor: Kwang Seop Park
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Patent number: 7202924Abstract: The present invention relates to a liquid crystal display and a fabricating method thereof which prevent light leakage occurs near data lines in accordance with the rubbing direction of an alignment film. The present invention includes a thin film transistor plate having a gate line, a data line, a gate electrode, a thin film transistor, a passivation layer, and a pixel electrode, a color filter plate including a black matrix, a color filter and a common electrode on a second transparent substrate, and liquid crystals injected and sealed between the thin film transistor plate and the color filter plate, wherein the black matrix of the color filter plate is overlapped asymmetrically with the data line of the thin film transistor plate.Type: GrantFiled: February 22, 2000Date of Patent: April 10, 2007Assignee: LG.Philips LCD Co., LtdInventors: Sung-Il Park, In-Byeong Kang, Sung-Su Lee, Yu-Ho Jung, Kwang-Seop Park
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Patent number: 6975378Abstract: A liquid crystal display device, and a fabricating method thereof, with improved bonding of an upper plate to a lower plate. The lower plate includes an organic protective film over an inorganic gate insulating layer that is on a substrate. Channels through the organic protective film expose either metal patterns or the gate insulating layer. A seal coated with a sealant is then placed over the organic protective film and channels. The sealant passes through the channels to the metal patterns or to the gate insulating layer. Bonding of the seal to the lower plate is improved by the sealant that contacts the metal patterns and/or the gate insulating layer. During LCD fabrication, the metal patterns act as etch stops when etching the channels. Alternatively, an etch stop semiconductor layer is placed on the gate insulating film. The etch stops prevent the etching process from exposing the lower substrate.Type: GrantFiled: September 1, 2004Date of Patent: December 13, 2005Assignee: LG.Philips LCD Co., Ltd.Inventors: Dong Yeung Kwak, Kwang Seop Park
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Patent number: 6970221Abstract: A liquid crystal display device and a method of fabricating the same that is capable of speeding up a data charge time in a liquid crystal pixel cell in a liquid crystal display device with a high aperture ratio overlapping a pixel electrode and a signal wiring. In the device, a thickness and a dielectric constant of the organic insulating film are set such that a signal delay at the gate line and the data line can be reduced.Type: GrantFiled: October 13, 2000Date of Patent: November 29, 2005Assignee: LG.Philips LCD Co., Ltd.Inventors: Kwang Seop Park, Dong Yeung Kwak, Jae Young Chung
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Patent number: 6803983Abstract: A liquid crystal display device, and a fabricating method thereof, with improved bonding of an upper plate to a lower plate. The lower plate includes an organic protective film over an inorganic gate insulating layer that is on a substrate. Channels through the organic protective film expose either metal patterns or the gate insulating layer. A seal coated with a sealant is then placed over the organic protective film and channels. The sealant passes through the channels to the metal patterns or to the gate insulating layer. Bonding of the seal to the lower plate is improved by the sealant that contacts the metal patterns and/or the gate insulating layer. During LCD fabrication, the metal patterns act as etch stops when etching the channels. Alternatively, an etch stop semiconductor layer is placed on the gate insulating film. The etch stops prevent the etching process from exposing the lower substrate.Type: GrantFiled: December 15, 2000Date of Patent: October 12, 2004Assignee: LG.Philips LCD Co., Ltd.Inventors: Dong Yeung Kwak, Kwang Seop Park
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Publication number: 20040102127Abstract: A method of manufacturing an LCD device includes forming a gate bus line, a gate insulating layer, an active layer, and a source/drain metal layer on a transparent insulating substrate; etching the source/drain metal layer and active layer to form a source/drain electrode and a channel layer while forming a metal protection pattern in a peripheral region of the transparent insulating substrate; forming a protection layer and a pixel electrode on the insulating substrate; forming a main seal line at an interior region of the array substrate, forming a first auxiliary seal line between the metal protection pattern and the main seal line, and forming second and third auxiliary seal lines; and attaching a color filter substrate to the array substrate via the main seal line.Type: ApplicationFiled: November 10, 2003Publication date: May 27, 2004Inventor: Kwang Seop Park
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Patent number: 6717646Abstract: Alignment indicators for an LCD device are used for determining misalignment when assembling two LCD substrates together, where a lower substrate includes an array of thin film transistors and an upper substrate includes a color filter array. A first alignment indicator is defined on a first substrate, and a second alignment indicator defined on a second substrate, wherein recessed portions with various depths and protruded portions with various lengths are defined at the outer edges of the second alignment indicator so that the amount of misalignment can be accurately measured by reading the position of the recessed portions and the protruded portions relative to the first alignment indicator when the upper and lower substrates are put together.Type: GrantFiled: December 17, 1999Date of Patent: April 6, 2004Assignee: LG. Philips LCD Co., Ltd.Inventors: Kwang-Seop Park, In-Jae Chung
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Publication number: 20010024245Abstract: A liquid crystal display device wherein pattern badness generated during the process is eliminated to reduce a repair. In the device, a trench-shaped hole is defined by patterning a passivation layer and a gate-insulating layer at the peripheries of a gate line and a data line to expose a transparent substrate. Accordingly, a portion protruded for the pixel area caused by pattern badness in the semiconductor layer and the gate line also is removed by the trench-shaped holes defined by patterning the passivation layer and the gate insulating layer at the peripheries of the gate line and the data line, so that a separate repair process is not required.Type: ApplicationFiled: December 20, 2000Publication date: September 27, 2001Inventors: Woo Hyuk Choi, Kwang Seop Park
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Publication number: 20010013918Abstract: A liquid crystal display device, and a fabricating method thereof, with improved bonding of an upper plate to a lower plate. The lower plate includes an organic protective film over an inorganic gate insulating layer that is on a substrate. Channels through the organic protective film expose either metal patterns or the gate insulating layer. A seal coated with a sealant is then placed over the organic protective film and channels. The sealant passes through the channels to the metal patterns or to the gate insulating layer. Bonding of the seal to the lower plate is improved by the sealant that contacts the metal patterns and/or the gate insulating layer. During LCD fabrication, the metal patterns act as etch stops when etching the channels. Alternatively, an etch stop semiconductor layer is placed on the gate insulating film. The etch stops prevent the etching process from exposing the lower substrate.Type: ApplicationFiled: December 15, 2000Publication date: August 16, 2001Inventors: Dong Yeung Kwak, Kwang Seop Park