Patents by Inventor Do Hee Kwon
Do Hee Kwon 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: 20240071262Abstract: An electronic price indicator according to an embodiment includes a display displaying product information, an NFC module configured to communicate with a user terminal, a Bluetooth module configured to communicate with the user terminal, and a processor configured to control the display to display the product information received from the user terminal through the Bluetooth module. The processor is further configured to release a sleep mode when receiving an interrupt from the user terminal through the NFC module, and perform Bluetooth communication with the user terminal by initiating a scan for a predetermined period of time to receive an advertising signal from the user terminal.Type: ApplicationFiled: January 20, 2023Publication date: February 29, 2024Inventors: Jae Gun HEO, Chung Hee LEE, Do Sang KWON, Woo Seok HAN, Chan LEE, Ji Hoon KIM, Bo II SEO
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Patent number: 7808593Abstract: A multi-domain liquid crystal display device includes first and second substrates facing each other; a liquid crystal layer between the first and second substrates; a plurality of gate bus lines arranged in a first direction on the first substrate and a plurality of data bus lines arranged in a second direction on the first substrate to define a pixel region; a electric field inducing window in the pixel region; and a photo alignment layer having a pre-tilt angle on at least one substrate.Type: GrantFiled: April 3, 2000Date of Patent: October 5, 2010Assignee: LG Display Co., Ltd.Inventors: Kyeong Jin Kim, Do Hee Kwon
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Patent number: 7365817Abstract: The present invention relates to a multi-domain, specifically 4-domain, liquid crystal display and a method for manufacturing the same. In one aspect, the liquid crystal display includes a pair of opposed substrates and a liquid crystal injected and sealed between the substrates. A first region and a second region on the first substrate have different alignment directions due to a photosensitive alignment film formed on the first substrate. Each pixel on the second substrate exhibits four different liquid crystal alignment directions when an electric field is applied. This occurs because a fringe field is generated by a slit-patterned pixel electrode of the second substrate, and different alignment directions are formed in the first substrate.Type: GrantFiled: October 4, 2001Date of Patent: April 29, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Do Hee Kwon, Jang Jin Yoo
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Patent number: 7079211Abstract: Multi-domain liquid crystal display including a first substrates and a second substrate, a liquid crystal layer between the first and second substrates, a plurality of gatelines and datalines on the first substrate crossed each other at fixed intervals, a pixel electrode in each of pixel regions formed between the gatelines and the datalines, a supplementary electrode around each of the pixel electrodes in the same layer with the pixel electrodes, at least one field induction window in each of the pixel regions, and an optical orientation film formed at least one of the first and second substrates.Type: GrantFiled: March 22, 2004Date of Patent: July 18, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Kyeong Jin Kim, Do Hee Kwon, Seong Moh Seo
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Patent number: 6900869Abstract: A multi-domain liquid crystal display device includes first and second substrates facing each other and a liquid crystal layer between the first and second substrates. A plurality of gate bus lines are arranged in a first direction on the first substrate and a plurality of data bus lines are arranged in a second direction on the first substrate to define a pixel region. A pixel electrode is electrically charged through the data bus line in the pixel region. A dielectric frame is in a region other than a region where the pixel electrode is formed, and distorts electric field applied to the liquid crystal layer. A common electrode is on the second substrate, and an alignment layer is on at least one substrate between the first and second substrates.Type: GrantFiled: November 24, 1999Date of Patent: May 31, 2005Assignee: LG. Philips LCD Co., Ltd.Inventors: Yun Bok Lee, Kyeong Jin Kim, Jang Jin Yoo, Jae Yoon Lee, Do Hee Kwon
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Patent number: 6856367Abstract: An LCD device is disclosed, which improves color characteristics and gray inversion regardless of a viewing angle. The LCD device includes a first electrode on a first substrate having a plurality of slit patterns, a second electrode on a second substrate, a liquid crystal layer between the first and second substrates, the liquid crystal layer having different alignment directions by each slit pattern, and at least one light-shielding layer below the first electrode.Type: GrantFiled: September 20, 2001Date of Patent: February 15, 2005Assignee: LG. Philips LCD Co., Ltd.Inventors: Jang Jin Yoo, Do Hee Kwon, Hyun Ho Shin
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Patent number: 6757040Abstract: Multi-domain liquid crystal display including a first substrate and a second substrate, a liquid crystal layer between the first and second substrates, a plurality of gatelines and datalines on the first substrate crossed each other at fixed intervals, a pixel electrode in each of pixel regions formed between the gatelines and the datalines, a supplementary electrode around each of the pixel electrodes in the same layer with the pixel electrodes, at least one field induction window in each of the pixel regions, and an optical orientation film formed at least one of the first and second substrates.Type: GrantFiled: May 8, 2000Date of Patent: June 29, 2004Assignee: LG. Philips LCD Co., Ltd.Inventors: Kyeong Jin Kim, Do Hee Kwon, Seong Moh Seo
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Patent number: 6654090Abstract: The present multi-domain liquid crystal display device includes first and second substrates facing each other; a liquid crystal layer between the first and second substrates; a plurality of gate bus lines arranged in a first direction on the first substrate and a plurality of data bus lines arranged in a second direction on the first substrate to define a pixel region; a thin film transistor positioned at a crossing area of the data bus line and the gate bus line, the thin film transistor comprising a gate electrode, a semiconductor layer, and source/drain electrodes; a pixel electrode on the first substrate, the pixel electrode having at least one window inducing electric field therein; a color filter layer on the second substrate, the color filter layer having at least one window distorting electric field therein; a common electrode on the color filter layer; and an alignment layer on at least one substrate between the first and second substrates.Type: GrantFiled: March 30, 2000Date of Patent: November 25, 2003Assignee: LG. Philips LCD Co., Ltd.Inventors: Kyeong Jin Kim, Yun Bok Lee, Jang Jin Yoo, Do Hee Kwon, Jae Beom Choi, Yong In Park
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Patent number: 6583836Abstract: A multi-domain liquid crystal display device includes first and second substrates, a plurality of gate lines on the first substrate in a first direction, a plurality of data lines formed in a second direction to cross the first direction, a plurality of thin film transistors formed in a portion where the gate lines cross the data lines, a plurality of pixel regions divided into at least one or more domains between neighboring gate and data lines, a plurality of pixel electrodes in each pixel region to be connected with the thin film transistors, at least one dielectric structure on the second substrate, a plurality of light-shielding layers formed in a boundary region of the domains and a region where the dielectric structure exists, on at least one of the first and second substrates, an alignment film on at least one of the first and second substrates, and a liquid crystal layer between the first substrate and the second substrate.Type: GrantFiled: December 28, 2000Date of Patent: June 24, 2003Assignee: LG. Philips LCD Co., Ltd.Inventors: Keong Jin Kim, Do Hee Kwon
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Patent number: 6525794Abstract: A multi-domain liquid crystal display device comprises first and second substrates facing each other and a liquid crystal layer between the first and second substrates. A plurality of gate bus lines are arranged in a first direction on the first substrate and a plurality of data bus lines are arranged in a second direction on the first substrate to define a pixel region. A pixel electrode is formed in the pixel region, a color filter layer is formed on the second substrate, and a common electrode is formed on the color filter layer. Dielectric frames control alignment direction of the liquid crystal molecules in the liquid crystal layer, and an alignment layer is formed on at least one substrate between the first and second substrates.Type: GrantFiled: October 19, 1999Date of Patent: February 25, 2003Assignee: LG. Philips LCD Co., Ltd.Inventors: Kyeong Jin Kim, Do Hee Kwon
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Publication number: 20020047971Abstract: The present invention relates to a multi-domain, specifically 4-domain, liquid crystal display and a method for manufacturing the same. In one aspect, the liquid crystal display includes a pair of opposed substrates and a liquid crystal injected and sealed between the substrates. A first region and a second region on the first substrate have different alignment directions due to a photosensitive alignment film formed on the first substrate. Each pixel on the second substrate exhibits four different liquid crystal alignment directions when an electric field is applied. This occurs because a fringe field is generated by a slit-patterned pixel electrode of the second substrate, and different alignment directions are formed in the first substrate.Type: ApplicationFiled: October 4, 2001Publication date: April 25, 2002Applicant: LG.Philips LCD Co., Ltd.Inventors: Do Hee Kwon, Jang Jin Yoo
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Publication number: 20020033914Abstract: An LCD device is disclosed, which improves color characteristics and gray inversion regardless of a viewing angle. The LCD device includes a first electrode on a first substrate having a plurality of slit patterns, a second electrode on a second substrate, a liquid crystal layer between the first and second substrates, the liquid crystal layer having different alignment directions by each slit pattern, and at least one light-shielding layer below the first electrode.Type: ApplicationFiled: September 20, 2001Publication date: March 21, 2002Applicant: LG.Philips LCD Co., Ltd.Inventors: Jang Jin Yoo, Do Hee Kwon, Hyun Ho Shin
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Publication number: 20010019388Abstract: A multi-domain liquid crystal display device includes first and second substrates, a plurality of gate lines on the first substrate in a first direction, a plurality of data lines formed in a second direction to cross the first direction, a plurality of thin film transistors formed in a portion where the gate lines cross the data lines, a plurality of pixel regions divided into at least one or more domains between neighboring gate and data lines, a plurality of pixel electrodes in each pixel region to be connected with the thin film transistors, at least one dielectric structure on the second substrate, a plurality of light-shielding layers formed in a boundary region of the domains and a region where the dielectric structure exists, on at least one of the first and second substrates, an alignment film on at least one of the first and second substrates, and a liquid crystal layer between the first substrate and the second substrate.Type: ApplicationFiled: December 28, 2000Publication date: September 6, 2001Inventors: Kyeong Jin Kim, Do Hee Kwon