Patents by Inventor See Hwa Jeong
See Hwa Jeong 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).
-
Patent number: 7625770Abstract: A liquid crystal display and a fabricating method thereof for improving an aperture ratio are disclosed. A liquid crystal display (LCD) according to the present invention includes a gate line, a data line and a common line on the thin film transistor array substrate, the gate line crossing the data line to define a pixel region; a thin film transistor near the crossing of the gate line and the data line; a common electrode connected to the common line in the pixel region; and a pixel electrode connected to the thin film transistor in the pixel area for forming an in-plane electric field in association with the common electrode during an operation of the LCD, wherein an edge of the pixel electrode overlaps the common line with at least one insulating layer therebetween, and an edge of the common electrode overlaps the pixel electrode with said at least one insulating layer therebetween.Type: GrantFiled: January 16, 2009Date of Patent: December 1, 2009Assignee: LG Display Co., Ltd.Inventors: Hyun Kyu Lee, See Hwa Jeong, Seung Chan Choi
-
Patent number: 7616277Abstract: A transflective LCD device includes first and second transparent substrates spaced apart from each other and having a reflective portion and a transmissive portion, an insulator on the first transparent substrate, a passivation layer on the insulator within the reflective portion, a reflector on the passivation layer, a transparent pixel electrode disposed over the insulator covering the reflector and the passivation layer, a buffer pattern disposed on a rear surface of the second substrate, the buffer pattern having a saw-tooth shape corresponding to the reflective portion, a color filter on the rear surface of the second substrate covering the buffer pattern, the color filter having a first thickness in the transmissive portion and a second thickness in the reflective portion, a transparent common electrode on a rear surface of the color filter, and a liquid crystal layer between the transparent pixel electrode and the transparent common electrode.Type: GrantFiled: September 15, 2006Date of Patent: November 10, 2009Assignee: LG Display Co., Ltd.Inventors: Sang-Min Jang, See-Hwa Jeong, Min-Joo Kim
-
Publication number: 20090137077Abstract: A liquid crystal display and a fabricating method thereof for improving an aperture ratio are disclosed. A liquid crystal display (LCD) according to the present invention includes a gate line, a data line and a common line on the thin film transistor array substrate, the gate line crossing the data line to define a pixel region; a thin film transistor near the crossing of the gate line and the data line; a common electrode connected to the common line in the pixel region; and a pixel electrode connected to the thin film transistor in the pixel area for forming an in-plane electric field in association with the common electrode during an operation of the LCD, wherein an edge of the pixel electrode overlaps the common line with at least one insulating layer therebetween, and an edge of the common electrode overlaps the pixel electrode with said at least one insulating layer therebetween.Type: ApplicationFiled: January 16, 2009Publication date: May 28, 2009Inventors: Hyun Kyu Lee, See Hwa Jeong, Seung Chan Choi
-
Patent number: 7532299Abstract: A method for fabrication a substrate for a liquid crystal display device includes: forming a color filter layer on a substrate; coating an organic layer on the color filter layer; irradiating a first light onto the organic layer; irradiating a second light onto the organic layer through a mask having a transmitting portion and a shielding portion, an energy density of the first light smaller than an energy density of the second light; and forming an overcoat layer and a column spacer by developing the organic layer.Type: GrantFiled: December 27, 2004Date of Patent: May 12, 2009Assignee: LG Display Co., Ltd.Inventors: Seung-Han Paek, Yong-Jin Cho, Jung-Il Lee, See-Hwa Jeong
-
Patent number: 7525336Abstract: A method and apparatus for testing a liquid crystal display device are provided to detect a defect location precisely and rapidly without requiring a jig. The method includes providing an inspection apparatus as a removable portion of the liquid crystal display device; inspecting the display part of the liquid crystal display device using the inspection apparatus; removing the inspection apparatus from the liquid crystal display device after the inspection is completed; and attaching driving circuits to the liquid crystal display device having the inspection apparatus removed therefrom.Type: GrantFiled: February 20, 2008Date of Patent: April 28, 2009Assignee: LG Display Co., Ltd.Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Patent number: 7495733Abstract: A liquid crystal display and a fabricating method thereof for improving an aperture ratio are disclosed. A liquid crystal display (LCD) according to the present invention includes a gate line, a data line and a common line on the thin film transistor array substrate, the gate line crossing the data line to define a pixel region; a thin film transistor near the crossing of the gate line and the data line; a common electrode connected to the common line in the pixel region; and a pixel electrode connected to the thin film transistor in the pixel area for forming an in-plane electric field in association with the common electrode during an operation of the LCD, wherein an edge of the pixel electrode overlaps the common line with at least one insulating layer there between, and an edge of the common electrode overlaps the pixel electrode with said at least one insulating layer therebetween.Type: GrantFiled: April 29, 2005Date of Patent: February 24, 2009Assignee: LG Display Co., Ltd.Inventors: Hyun Kyu Lee, See Hwa Jeong, Seung Chan Choi
-
Publication number: 20080136440Abstract: A method and apparatus for testing a liquid crystal display device are provided to detect a defect location precisely and rapidly without requiring a jig. The method includes providing an inspection apparatus as a removable portion of the liquid crystal display device; inspecting the display part of the liquid crystal display device using the inspection apparatus; removing the inspection apparatus from the liquid crystal display device after the inspection is completed; and attaching driving circuits to the liquid crystal display device having the inspection apparatus removed therefrom.Type: ApplicationFiled: February 20, 2008Publication date: June 12, 2008Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Patent number: 7362124Abstract: A method and apparatus are provided for inspecting an electrical defectiveness of a liquid crystal display substrate. The method includes shorting ESD protection devices with a conductive shorting bar to form a current path on each of signal wirings of the substrate, supplying a current to the signal wirings, and determining a defectiveness of the signal wirings depending on the current flowing on the signal wirings.Type: GrantFiled: October 3, 2006Date of Patent: April 22, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Patent number: 7358756Abstract: A method and apparatus for testing a liquid crystal display device are provided to detect a defect location precisely and rapidly without requiring a jig. The method includes providing an inspection apparatus as a removable portion of the liquid crystal display device; inspecting the display part of the liquid crystal display device using the inspection apparatus; removing the inspection apparatus from the liquid crystal display device after the inspection is completed; and attaching driving circuits to the liquid crystal display device having the inspection apparatus removed therefrom.Type: GrantFiled: March 29, 2006Date of Patent: April 15, 2008Assignee: LG. Philips LCD Co., Ltd.Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Patent number: 7301360Abstract: A novel method and apparatus inspects liquid crystal display. The method and apparatus for inspecting the flat display device scans at least one signal wire by using a magnetic sensor and detects a resistance change of the magnetic sensor to perceive a short in the signal wire. Pixels can be tested using an array of magnetic sensors configured such that each sensor in the array is smaller than the pixel.Type: GrantFiled: September 25, 2003Date of Patent: November 27, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Publication number: 20070008469Abstract: A transflective LCD device includes first and second transparent substrates spaced apart from each other and having a reflective portion and a transmissive portion, an insulator on the first transparent substrate, a passivation layer on the insulator within the reflective portion, a reflector on the passivation layer, a transparent pixel electrode disposed over the insulator covering the reflector and the passivation layer, a buffer pattern disposed on a rear surface of the second substrate, the buffer pattern having a saw-tooth shape corresponding to the reflective portion, a color filter on the rear surface of the second substrate covering the buffer pattern, the color filter having a first thickness in the transmissive portion and a second thickness in the reflective portion, a transparent common electrode on a rear surface of the color filter, and a liquid crystal layer between the transparent pixel electrode and the transparent common electrode.Type: ApplicationFiled: September 15, 2006Publication date: January 11, 2007Inventors: Sang-Min Jang, See-Hwa Jeong, Min-Joo Kim
-
Patent number: 7132846Abstract: A method and apparatus are provided for inspecting an electrical defectiveness of a liquid crystal display substrate. The method includes shorting ESD protection devices with a conductive shorting bar to form a current path on each of signal wirings of the substrate, supplying a current to the signal wirings, and determining a defectiveness of the signal wirings depending on the current flowing on the signal wirings.Type: GrantFiled: September 22, 2003Date of Patent: November 7, 2006Assignee: LG.Phillips LCD Co., Ltd.Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Patent number: 7119864Abstract: A transflective LCD device includes first and second transparent substrates spaced apart from each other and having a reflective portion and a transmissive portion, an insulator on the first transparent substrate, a passivation layer on the insulator within the reflective portion, a reflector on the passivation layer, a transparent pixel electrode disposed over the insulator covering the reflector and the passivation layer, a buffer pattern disposed on a rear surface of the second substrate, the buffer pattern having a saw-tooth shape corresponding to the reflective portion, a color filter on the rear surface of the second substrate covering the buffer pattern, the color filter having a first thickness in the transmissive portion and a second thickness in the reflective portion, a transparent common electrode on a rear surface of the color filter, and a liquid crystal layer between the transparent pixel electrode and the transparent common electrode.Type: GrantFiled: December 29, 2003Date of Patent: October 10, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Sang-Min Jang, See-Hwa Jeong, Min-Joo Kim
-
Patent number: 7046030Abstract: A method and apparatus for testing a liquid crystal display device are provided to detect a defect location precisely and rapidly without requiring a jig. The method includes providing a substrate to inspect, wherein the substrate includes signal wirings, drive switches and capacitors formed in an effective display area of the substrate; radiating a light onto an inspection switch device and thereby supplying an inspection voltage from an inspection line to one of the drive switches through the signal wirings, so as to charge one of the capacitors; and determining if there is a defect in the effective display area of the substrate by reading the charged voltage of the capacitor.Type: GrantFiled: September 25, 2003Date of Patent: May 16, 2006Assignee: LG. Philips LCD Co., Ltd.Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Patent number: 7015994Abstract: A thin film transistor liquid crystal display is designed such that TFTs for driving green pixels are formed in the blue pixel regions. This improves the overall brightness of the liquid crystal display based on the human view-sensitive characteristics.Type: GrantFiled: December 15, 2003Date of Patent: March 21, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Yong Jin Cho, Jung Il Lee, Min Joo Kim, See Hwa Jeong
-
Patent number: 7009405Abstract: A method and apparatus tests a flat display device to inspect for shorts and open circuits in a signal wire by using a magnetic sensor. The inspection method and apparatus scans the magnetic sensor along signal wires in a scan direction crossing multiple signal wires and detects at least one of a short or an open circuit in the signal wires based on current detected by the magnetic sensor.Type: GrantFiled: September 26, 2003Date of Patent: March 7, 2006Assignee: LG. Philips LCD Co., Ltd.Inventors: Sung Joon Bae, Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Publication number: 20050140915Abstract: A method for fabrication a substrate for a liquid crystal display device includes: forming a color filter layer on a substrate; coating an organic layer on the color filter layer; irradiating a first light onto the organic layer; irradiating a second light onto the organic layer through a mask having a transmitting portion and a shielding portion, an energy density of the first light smaller than an energy density of the second light; and forming an overcoat layer and a column spacer by developing the organic layer.Type: ApplicationFiled: December 27, 2004Publication date: June 30, 2005Inventors: Seung-Han Paek, Yong-Jin Cho, Jung-Il Lee, See-Hwa Jeong
-
Publication number: 20040222816Abstract: A method and apparatus tests a flat display device to inspect for shorts and open circuits in a signal wire by using a magnetic sensor. The inspection method and apparatus scans the magnetic sensor along signal wires in a scan direction crossing multiple signal wires and detects at least one of a short or an open circuit in the signal wires based on current detected by the magnetic sensor.Type: ApplicationFiled: September 26, 2003Publication date: November 11, 2004Inventors: Sung Joon Bae, Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Publication number: 20040222814Abstract: A novel method and apparatus inspects liquid crystal display. The method and apparatus for inspecting the flat display device scans at least one signal wire by using a magnetic sensor and detects a resistance change of the magnetic sensor to perceive a short in the signal wire. Pixels can be tested using an array of magnetic sensors configured such that each sensor in the array is smaller than the pixel.Type: ApplicationFiled: September 25, 2003Publication date: November 11, 2004Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
-
Publication number: 20040222813Abstract: A method and apparatus are provided for inspecting an electrical defectiveness of a liquid crystal display substrate. The method includes shorting ESD protection devices with a conductive shorting bar to form a current path on each of signal wirings of the substrate, supplying a current to the signal wirings, and determining a defectiveness of the signal wirings depending on the current flowing on the signal wirings.Type: ApplicationFiled: September 22, 2003Publication date: November 11, 2004Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong