Patents by Inventor Han Wook Hwang
Han Wook Hwang 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: 20220199748Abstract: A display device includes: a through hole; a line region surrounding the through hole; a display region surrounding the line region; first to fourth layer lines which are located in the line region and at different layers; auxiliary layer lines which are located below the first layer lines or on the fourth layer lines; pixels located in the display region; first signal lines which are electrically connected to the pixels and are along a first direction; and second signal lines which are electrically connected to the pixels and are along a second direction intersecting the first direction, wherein the auxiliary layer lines electrically connected to one of the second signal lines.Type: ApplicationFiled: December 15, 2021Publication date: June 23, 2022Inventors: Jung-Chul Kim, Ji-Eun Kang, Han-Wook Hwang
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Patent number: 8848123Abstract: A liquid crystal display device includes a liquid crystal display module including an in-plane switching mode liquid crystal panel; a first cover covering a rear side of the liquid crystal display module; a second cover covering a front side of the liquid crystal display module and including a transparent conductive layer; and a discharging path connecting the transparent conductive layer to the in-plane switching mode liquid crystal panel, wherein the transparent conductive layer is attached to the liquid crystal display module.Type: GrantFiled: December 28, 2011Date of Patent: September 30, 2014Assignee: LG Display Co., Ltd.Inventors: Hyo-Jin Min, Yong-Min Ha, Han-Wook Hwang
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Patent number: 8816947Abstract: A liquid crystal display device includes a liquid crystal display panel having a thin film transistor connected to a gate line and a data line on a substrate, a pixel electrode connected to the thin film transistor, a common electrode for forming a horizontal electric field with the pixel electrode, a common line connected to the common electrode and parallel to the gate line, and a storage line parallel to the gate line and having a portion overlapping the pixel electrode with at least one insulating film therebetween to form a storage capacitor, a gate driver for supplying a scan pulse to the gate line, a data driver for supplying a pixel voltage signal to the data line, a common driver for supplying a common voltage signal to the common line, and a storage driver for supplying a storage voltage signal to a storage line.Type: GrantFiled: October 5, 2005Date of Patent: August 26, 2014Assignee: LG Display Co., Ltd.Inventors: Han Wook Hwang, Sang Ho Kim
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Patent number: 8547517Abstract: A liquid crystal display device includes an array substrate that includes gate and data lines crossing each other to define a pixel region, and a thin film transistor and a pixel electrode in the pixel region; an opposing substrate that faces the array substrate and includes a black matrix corresponding to a boundary of the pixel region, and a color filter layer filling a region surrounded by the black matrix; a patterned spacer on the black matrix and having a diamond shape in plane; and a liquid crystal layer between the array substrate and the opposing substrate, wherein the patterned spacer corresponds to a crossing portion of the gate and data lines, and vertices of the diamond shape of the patterned spacer are on the gate and data lines.Type: GrantFiled: December 20, 2011Date of Patent: October 1, 2013Assignee: LG Display Co., Ltd.Inventors: Hyo-Jin Min, Han-Wook Hwang
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Patent number: 8339555Abstract: An in-plane switching liquid crystal display device includes a gate line and a data line on a substrate, the gate and data lines crossing each other to define a pixel region, a thin film transistor electrically connected to the gate and data lines, a pixel electrode connected to the thin film transistor, and a common electrode alternately arranged with the pixel electrode to form n blocks in the pixel region. Widths of some of the blocks are different than widths of other of the blocks.Type: GrantFiled: June 29, 2005Date of Patent: December 25, 2012Assignee: LG Display Co., Ltd.Inventors: Han-Wook Hwang, Young-Hak Lee
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Publication number: 20120268699Abstract: A liquid crystal display device includes an array substrate that includes gate and data lines crossing each other to define a pixel region, and a thin film transistor and a pixel electrode in the pixel region; an opposing substrate that faces the array substrate and includes a black matrix corresponding to a boundary of the pixel region, and a color filter layer filling a region surrounded by the black matrix; a patterned spacer on the black matrix and having a diamond shape in plane; and a liquid crystal layer between the array substrate and the opposing substrate, wherein the patterned spacer corresponds to a crossing portion of the gate and data lines, and vertices of the diamond shape of the patterned spacer are on the gate and data lines.Type: ApplicationFiled: December 20, 2011Publication date: October 25, 2012Inventors: Hyo-Jin MIN, Han-Wook HWANG
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Publication number: 20120218491Abstract: A liquid crystal display device includes a liquid crystal display module including an in-plane switching mode liquid crystal panel; a first cover covering a rear side of the liquid crystal display module; a second cover covering a front side of the liquid crystal display module and including a transparent conductive layer; and a discharging path connecting the transparent conductive layer to the in-plane switching mode liquid crystal panel, wherein the transparent conductive layer is attached to the liquid crystal display module.Type: ApplicationFiled: December 28, 2011Publication date: August 30, 2012Inventors: Hyo Jin Min, Yong Min Ha, Han-Wook Hwang
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Patent number: 8208111Abstract: An LCD device, and a fabrication method thereof, having a high aperture ratio and a high optical transmittance that enhances a fabrication yield and reduces the number of masks required in a fabrication process are disclosed. The LCD device includes a first substrate and a second substrate; a gate line arranged on the first substrate in one direction and having a transparent conductive layer formed of a transparent conductive material at a lower portion thereof; a data line; a thin film transistor; a first electrode formed on the first substrate and formed on the same layer as the transparent conductive layer; a second electrode having a plurality of slits and formed on a different layer from the first electrode, wherein the second electrode generates a horizontal field with a parabolic shape on the first substrate with the first electrode; and a liquid crystal layer.Type: GrantFiled: May 19, 2006Date of Patent: June 26, 2012Assignee: LG Display Co., Ltd.Inventors: Yong Min Ha, Han Wook Hwang
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Patent number: 8045081Abstract: A liquid crystal display device comprises a liquid crystal panel including first and second substrates bonded to each other with a liquid crystal layer positioned therebetween, and the photosensor, formed on the second substrate, for sensing an external light from the surroundings, wherein the photosensor includes a semiconductor layer formed on the second substrate and provided with n+-type ion implantation region, ion non-implantation region and lightly doped region; an insulation film, formed on the second substrate, for covering the semiconductor layer; a passivation film, formed on the second substrate, for covering the insulation film; a first contact hole passing through the insulation film and the passivation film, to expose source and drain regions of the semiconductor layer; source and drain electrodes connected with the source and drain regions of the semiconductor layer through the first contact hole; an ion implanting prevention film formed on the insulation film and overlapped with the ion non-iType: GrantFiled: July 8, 2010Date of Patent: October 25, 2011Assignee: LG Display Co., Ltd.Inventors: Kyung Eon Lee, Myoung Kee Baek, Han Wook Hwang
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Patent number: 7876404Abstract: A transflective liquid crystal display device including: first and second transparent substrates facing each other with a reflective portion and a transmissive portion; gate and data lines over the first transparent substrate perpendicularly crossing each other and defining pixel regions; a thin film transistor connected to the gate and data lines in the pixel region; an insulator in the thin film transistor on the first substrate covering the gate line; a passivation layer in the reflection portion on the insulator and on the thin film transistor, a pixel electrode in the reflective and transmissive portions, wherein the pixel electrode contacts both the passivation layer in the reflective portion and the insulator in the transmissive portion; a reflector on the pixel electrode in the reflective portion; color filters on a rear surface of the second transparent substrate, the color filters having through holes; column spacers formed between the reflector and the color filters, each column spacer correspondinType: GrantFiled: July 8, 2009Date of Patent: January 25, 2011Assignee: LG Display Co., Ltd.Inventor: Han-Wook Hwang
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Publication number: 20100330713Abstract: A liquid crystal display device comprises a liquid crystal panel including first and second substrates bonded to each other with a liquid crystal layer positioned therebetween, and the photosensor, formed on the second substrate, for sensing an external light from the surroundings, wherein the photosensor includes a semiconductor layer formed on the second substrate and provided with n+-type ion implantation region, ion non-implantation region and lightly doped region; an insulation film, formed on the second substrate, for covering the semiconductor layer; a passivation film, formed on the second substrate, for covering the insulation film; a first contact hole passing through the insulation film and the passivation film, to expose source and drain regions of the semiconductor layer; source and drain electrodes connected with the source and drain regions of the semiconductor layer through the first contact hole; an ion implanting prevention film formed on the insulation film and overlapped with the ion non-iType: ApplicationFiled: July 8, 2010Publication date: December 30, 2010Applicant: LG Display Co., Ltd.Inventors: Kyung Eon LEE, Myoung Kee Baek, Han Wook Hwang
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Patent number: 7852438Abstract: A transflective type LCD device includes a substrate having gate and data lines crossing each other to define pixel regions, a reflective part and a transmitting part in each pixel region, a pixel electrode in the reflective part and the transmitting part of the pixel region, a reflective electrode in the reflective part of the pixel region, a thin film transistor having source and drain regions at a crossing of the gate and data lines for transmitting a signal of the data line to the pixel electrode in accordance with a signal of the gate line, and an electrode electrically connecting the source region of the thin film transistor with a data electrode of the data line.Type: GrantFiled: October 20, 2004Date of Patent: December 14, 2010Assignee: LG Display Co., Ltd.Inventor: Han Wook Hwang
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Patent number: 7787065Abstract: A liquid crystal display device comprises a liquid crystal panel including first and second substrates bonded to each other with a liquid crystal layer positioned therebetween, and the photosensor, formed on the second substrate, for sensing an external light from the surroundings, wherein the photosensor includes a semiconductor layer formed on the second substrate and provided with n+-type ion implantation region, ion non-implantation region and lightly doped region; an insulation film, formed on the second substrate, for covering the semiconductor layer; a passivation film, formed on the second substrate, for covering the insulation film; a first contact hole passing through the insulation film and the passivation film, to expose source and drain regions of the semiconductor layer; source and drain electrodes connected with the source and drain regions of the semiconductor layer through the first contact hole; an ion implanting prevention film formed on the insulation film and overlapped with the ion non-iType: GrantFiled: December 19, 2007Date of Patent: August 31, 2010Assignee: LG Display Co., Ltd.Inventors: Kyung Eon Lee, Myoung Kee Baek, Han Wook Hwang
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Publication number: 20090284699Abstract: A transflective liquid crystal display device including: first and second transparent substrates facing each other with a reflective portion and a transmissive portion; gate and data lines over the first transparent substrate perpendicularly crossing each other and defining pixel regions; a thin film transistor connected to the gate and data lines in the pixel region; an insulator in the thin film transistor on the first substrate covering the gate line; a passivation layer in the reflection portion on the insulator and on the thin film transistor, a pixel electrode in the reflective and transmissive portions, wherein the pixel electrode contacts both the passivation layer in the reflective portion and the insulator in the transmissive portion; a reflector on the pixel electrode in the reflective portion; color filters on a rear surface of the second transparent substrate, the color filters having through holes; column spacers formed between the reflector and the color filters, each column spacer correspondinType: ApplicationFiled: July 8, 2009Publication date: November 19, 2009Inventor: Han-Wook Hwang
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Patent number: 7570340Abstract: A transflective liquid crystal display device including: first and second transparent substrates facing each other with a reflective portion and a transmissive portion; gate and data lines over the first transparent substrate perpendicularly crossing each other and defining pixel regions; a thin film transistor connected to the gate and data lines in the pixel region; an insulator in the thin film transistor on the first substrate covering the gate line; a passivation layer in the reflection portion on the insulator and on the thin film transistor; a pixel electrode in the reflective and transmissive portions, wherein the pixel electrode contacts both the passivation layer in the reflective potion and the insulator in the transmissive portion; a reflector on the pixel electrode in the reflective portion; color filters on a rear surface of the second transparent substrate, the color filters having through holes; column spacers formed between the reflector and the color filters, each column spacer correspondingType: GrantFiled: April 17, 2006Date of Patent: August 4, 2009Assignee: LG Display Co., Ltd.Inventor: Han-Wook Hwang
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Publication number: 20080151162Abstract: A liquid crystal display device comprises a liquid crystal panel including first and second substrates bonded to each other with a liquid crystal layer positioned therebetween, and the photosensor, formed on the second substrate, for sensing an external light from the surroundings, wherein the photosensor includes a semiconductor layer formed on the second substrate and provided with n+-type ion implantation region, ion non-implantation region and lightly doped region; an insulation film, formed on the second substrate, for covering the semiconductor layer; a passivation film, formed on the second substrate, for covering the insulation film; a first contact hole passing through the insulation film and the passivation film, to expose source and drain regions of the semiconductor layer; source and drain electrodes connected with the source and drain regions of the semiconductor layer through the first contact hole; an ion implanting prevention film formed on the insulation film and overlapped with the ion non-iType: ApplicationFiled: December 19, 2007Publication date: June 26, 2008Inventors: Kyung Eon Lee, Myoung Kee Baek, Han Wook Hwang
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Patent number: 7342566Abstract: A liquid crystal display (LCD) device includes a control chip arranged on a print circuit board (PCB); a sampling switch array arranged on an LCD panel for applying video signals from the control chip to data lines of the LCD panel; and a switch controller for controlling the sampling switch array in accordance with control signals and the video signal applied from the control chip.Type: GrantFiled: November 26, 2003Date of Patent: March 11, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Yong Min Ha, Soon Kwang Hong, Han Wook Hwang
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Patent number: 7206047Abstract: An array substrate for a transflective LCD includes a data line and a gate line on a substrate crossing each other to define a pixel region, the pixel region including a reflective region, a transparent region and a boundary region between the reflective region and the transparent region; a thin film transistor near the crossing of the gate line and the data line, the thin film transistor including a gate electrode, a semiconductor layer, a source electrode and a drain electrode; a passivation layer in the reflective region, the passivation layer having an opening in the transparent region and the boundary region; a reflective electrode in the reflective and boundary regions, the reflective electrode contacting the drain electrode through the opening in the boundary region; and a transparent electrode contacting the reflective electrode.Type: GrantFiled: October 15, 2004Date of Patent: April 17, 2007Assignee: LG.Philips LCD Co., Ltd.Inventor: Han-Wook Hwang
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Patent number: 7154568Abstract: The present invention relates to a static electricity prevention type liquid crystal display panel for preventing static electricity flowing in through a pad part. A static electricity prevention type liquid crystal display panel according to an embodiment of the present invention includes a picture display part having a plurality of liquid crystal cells; a signal pad part applying a drive signal to be inputted to signal lines of the picture display part, and wherein the signal pad part includes a plurality of pads connected to the signal lines; and a static electricity prevention circuit having a thin film transistor with a floating gate for connecting the pad with a shorting bar by a static electricity flowing into the pad for the pad to form an equipotential with respect to the static electricity.Type: GrantFiled: June 23, 2003Date of Patent: December 26, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Byeong Koo Kim, Yong Min Ha, Han Wook Hwang
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Publication number: 20060273315Abstract: An LCD device, and a fabrication method thereof, having a high aperture ratio and a high optical transmittance that enhances a fabrication yield and reduces the number of masks required in a fabrication process are disclosed. The LCD device includes a first substrate and a second substrate; a gate line arranged on the first substrate in one direction and having a transparent conductive layer formed of a transparent conductive material at a lower portion thereof; a data line; a thin film transistor; a first electrode formed on the first substrate and formed on the same layer as the transparent conductive layer; a second electrode having a plurality of slits and formed on a different layer from the first electrode, wherein the second electrode generates a horizontal field with a parabolic shape on the first substrate with the first electrode; and a liquid crystal layer.Type: ApplicationFiled: May 19, 2006Publication date: December 7, 2006Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Yong-Min Ha, Han-Wook Hwang