Patents by Inventor Jong Hee Hwang
Jong Hee 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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Patent number: 9524070Abstract: Disclosed is a touch screen device that may include first and second substrates; a plurality of first electrode lines and a plurality of second electrode lines on the first substrate that cross each other to define a plurality of touch sensors, each touch sensor including first and second electrodes, and an elastic resistor, with a gap space between the second electrode and the elastic resistor; and a touch driver that is electrically connected to at least one of the plurality of first electrode lines and the plurality of second electrode lines, and that determines a two-dimensional or three-dimensional touch information depending on an amount of force that is applied to the touch screen device.Type: GrantFiled: July 14, 2015Date of Patent: December 20, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Jong Hee Hwang, Sung Yong Cho
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Publication number: 20160282999Abstract: Disclosed is a touch screen device that may include first and second substrates; a plurality of first electrode lines and a plurality of second electrode lines on the first substrate that cross each other to define a plurality of touch sensors, each touch sensor including first and second electrodes, and an elastic resistor, with a gap space between the second electrode and the elastic resistor; and a touch driver that is electrically connected to at least one of the plurality of first electrode lines and the plurality of second electrode lines, and that determines a two-dimensional or three-dimensional touch information depending on an amount of force that is applied to the touch screen device.Type: ApplicationFiled: July 14, 2015Publication date: September 29, 2016Inventors: Jong Hee HWANG, Sung Yong CHO
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Publication number: 20160283031Abstract: Embodiments relate to a touch panel with a haptic function and a method of operating the touch panel. The touch panel includes first electrodes and second electrodes intersecting the first electrodes. The touch panel further includes an elastic dielectric member disposed between the first electrodes and the second electrodes to separate the first electrodes and the second electrodes. The first electrodes are applied with a touch driving pulse during a sensing mode, and are applied with a voltage during a haptic mode. The second electrodes sense a touch sense signal responsive to the touch driving pulse in the sensing mode, and the second electrodes are applied with a reference voltage in the haptic mode. The elastic dielectric member vibrates in response to the voltage applied to the first electrodes in the haptic mode.Type: ApplicationFiled: May 5, 2016Publication date: September 29, 2016Inventors: Jong Hee HWANG, Sung Yong CHO, Eun Jung KIM, Ki Seon KIM
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Publication number: 20160274708Abstract: Disclosed is a touch sensing display device capable of sensing both touch position and touch force, shortening a driving time for the touch sensing, and improving touch sensing efficiency, and an apparatus for driving thereof. The display device can include a color filter, a plurality of first touch electrodes for touch force sensing, and a plurality of second touch electrodes for touch position sensing and separated from the first touch electrodes by the color filter. The display can also include a force sensing touch driver for the first touch electrodes and a touch position touch driver for the second touch electrodes.Type: ApplicationFiled: June 2, 2016Publication date: September 22, 2016Inventors: Jong Hee Hwang, Sung Yong CHO, Eun Jung KIM
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Patent number: 9360981Abstract: Disclosed is a touch sensing display device capable of sensing both touch position and touch force, shortening a driving time for the touch sensing, and improving touch sensing efficiency, and an apparatus for driving thereof. The display device can include a color filter, a plurality of first touch electrodes for touch force sensing, and a plurality of second touch electrodes for touch position sensing and separated from the first touch electrodes by the color filter. The display can also include a force sensing touch driver for the first touch electrodes and a touch position touch driver for the second touch electrodes.Type: GrantFiled: May 15, 2015Date of Patent: June 7, 2016Assignee: LG Display Co., Ltd.Inventors: Jong Hee Hwang, Sung Yong Cho, Eun Jung Kim
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Patent number: 9335880Abstract: Embodiments relate to a touch panel with a haptic function and a method of operating the touch panel. The touch panel includes first electrodes and second electrodes intersecting the first electrodes. The touch panel further includes an elastic dielectric member disposed between the first electrodes and the second electrodes to separate the first electrodes and the second electrodes. The first electrodes are applied with a touch driving pulse during a sensing mode, and are applied with a voltage during a haptic mode. The second electrodes sense a touch sense signal responsive to the touch driving pulse in the sensing mode, and the second electrodes are applied with a reference voltage in the haptic mode. The elastic dielectric member vibrates in response to the voltage applied to the first electrodes in the haptic mode.Type: GrantFiled: May 15, 2015Date of Patent: May 10, 2016Assignee: LG Display Co., Ltd.Inventors: Jong Hee Hwang, Sung Yong Cho, Eun Jung Kim, Ki Seon Kim
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Patent number: 9304638Abstract: Discussed is a display device and a driving method thereof. The driving method includes respectively receiving a plurality of sensing signals from a plurality of touch electrodes formed at a touch panel, determining whether there is a normal touch, by using a size of a touch region defined by the received sensing signals, and when it is determined that there is the normal touch, performing an operation of extracting touch coordinates of the touch region, or when it is determined that there is an abnormal touch, performing an operation of receiving the sensing signals without performing the operation of extracting the touch coordinates.Type: GrantFiled: November 12, 2013Date of Patent: April 5, 2016Assignee: LG Display Co., Ltd.Inventors: Sun Young Kim, Jong Hee Hwang
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Publication number: 20160062505Abstract: Embodiments relate to a touch panel with a haptic function and a method of operating the touch panel. The touch panel includes first electrodes and second electrodes intersecting the first electrodes. The touch panel further includes an elastic dielectric member disposed between the first electrodes and the second electrodes to separate the first electrodes and the second electrodes. The first electrodes are applied with a touch driving pulse during a sensing mode, and are applied with a voltage during a haptic mode. The second electrodes sense a touch sense signal responsive to the touch driving pulse in the sensing mode, and the second electrodes are applied with a reference voltage in the haptic mode. The elastic dielectric member vibrates in response to the voltage applied to the first electrodes in the haptic mode.Type: ApplicationFiled: May 15, 2015Publication date: March 3, 2016Inventors: Jong Hee HWANG, Sung Yong CHO, Eun Jung KIM, Ki Seon KIM
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Publication number: 20160062504Abstract: Disclosed is a touch sensing display device capable of sensing both touch position and touch force, shortening a driving time for the touch sensing, and improving touch sensing efficiency, and an apparatus for driving thereof. The display device can include a color filter, a plurality of first touch electrodes for touch force sensing, and a plurality of second touch electrodes for touch position sensing and separated from the first touch electrodes by the color filter. The display can also include a force sensing touch driver for the first touch electrodes and a touch position touch driver for the second touch electrodes.Type: ApplicationFiled: May 15, 2015Publication date: March 3, 2016Inventors: Jong Hee Hwang, Sung Yong CHO, Eun Jung KIM
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Publication number: 20150370353Abstract: An optical touch display device which is advantageous in high-speed driving, large-area touch sensing, and multi-touch sensing because of use of an image map and which can improve touch sensing performance and a driving method thereof are provided. The optical touch display device includes a display device configured to display a display image based on input source image data and an image map for touch sensing, an optical touch pen configured to detect map information of the image map displayed on the display device, and a position detector configured to detect position information (coordinate information) on a screen based on the map information.Type: ApplicationFiled: June 23, 2015Publication date: December 24, 2015Inventors: Jung Hee KIM, Ki Duk KIM, Jong Hee HWANG, Seung Seok OH
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Publication number: 20150370356Abstract: Embodiments relate to a touch panel and a method of operating the touch panel. The touch panel includes first electrodes and second electrodes separated from and intersecting the first electrodes. The first electrodes are applied with a touch driving pulse during a first sensing mode and a second sensing mode. The second electrodes sense a first touch sense signal responsive to the touch driving pulse in the first sensing mode. A subset of the second electrodes senses a second touch sense signal responsive to the touch driving pulse in the second sensing mode.Type: ApplicationFiled: May 15, 2015Publication date: December 24, 2015Inventors: Jong Hee HWANG, Ki Duk KIM, Sung Yong CHO, Eun Jung KIM
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Publication number: 20150185928Abstract: One embodiment of a touch panel comprises a substrate; a sensing electrode formed over the substrate, the sensing electrode configured to sense finger touch input and to provide haptic feedback; and an antenna formed over the substrate, the antenna configured to sense pen touch input; wherein a first mode in which the finger touch input is sensed, a second mode in which the haptic feedback is provided, and a third mode in which pen touch input is received are time-divisionally performed.Type: ApplicationFiled: July 23, 2014Publication date: July 2, 2015Inventors: Ji Eun SON, Ki Duk KIM, Jong Hee HWANG, Jong hyun HAN
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Publication number: 20140176464Abstract: Discussed is a display device and a driving method thereof. The driving method includes respectively receiving a plurality of sensing signals from a plurality of touch electrodes formed at a touch panel, determining whether there is a normal touch, by using a size of a touch region defined by the received sensing signals, and when it is determined that there is the normal touch, performing an operation of extracting touch coordinates of the touch region, or when it is determined that there is an abnormal touch, performing an operation of receiving the sensing signals without performing the operation of extracting the touch coordinates.Type: ApplicationFiled: November 12, 2013Publication date: June 26, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Sun Young KIM, Jong Hee HWANG
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Patent number: 8384727Abstract: A video display device including an integrated atypical/typical defect compensation circuit is disclosed. The video display device includes a display panel, a memory storing atypical/typical defect information used to compensate atypical/typical defect regions of the display panel, and an integrated atypical/typical compensation circuit including a first compensator for compensating input data to be displayed on the atypical/typical defect regions, using the atypical/typical defect information from the memory, and a second compensator for finely compensating the data compensated by the first compensator, using first and second dithering patterns. The compensation circuit supplies data to be displayed on normal regions, without compensation.Type: GrantFiled: December 23, 2008Date of Patent: February 26, 2013Assignee: LG Display Co., Ltd.Inventors: Jong Hee Hwang, Hye Jin Kim
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Patent number: 8379034Abstract: Circuit for compensating a display defect in a video display device of the present invention includes a memory having position information on a plurality of regular patterned defective regions of a display panel, gray scale section information, a defect level data on each of the regular patterned defective regions, and a plurality of compensation data on each of the defect level data stored therein, a first compensation unit, upon reception of data to be displayed on the regular patterned defective regions, for determining defect level data on the regular patterned defective regions of the data to be displayed, selecting a compensation data set on the defect level data determined thus, and selecting a compensation data on the data to be displayed from the compensation data selected thus, for compensating the data to be displayed, and a second compensator for distributing the data compensated thus at the first compensation unit spatially and temporally by using dither patterns for making fine compensation, theType: GrantFiled: December 19, 2008Date of Patent: February 19, 2013Assignee: LG Display Co., Ltd.Inventors: Jong Hee Hwang, Hye Jin Kim, Ju Seong Park
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Patent number: 8237701Abstract: A video display device includes a display panel; a memory storing defect information for compensating data to be displayed on defect regions of the display panel; a compensation circuit comprising a first compensator that compensates the data to be displayed on the defect regions using the defect information from the memory, and a second compensator that finely compensates the data compensated by the first compensator using a first dither pattern, the compensation circuit supplying data to be displayed on normal regions without compensation; a timing controller comprising a dithering unit for finely compensating data output from the compensation circuit, using a second dither pattern having a size larger that a size of the first dither pattern; and a panel driver for driving the display panel under a control of the timing controller.Type: GrantFiled: December 22, 2008Date of Patent: August 7, 2012Assignee: LG Display Co., Ltd.Inventor: Jong Hee Hwang
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Patent number: 8227988Abstract: Provided is a material for forming barrier ribs, barrier ribs formed using the material, and a PDP comprising the barrier ribs. The material is photosensitive and made from a glass frit composition which is environmentally friendly (no Pb or Bi) and also prevents light scattering. The primary component of the glass frit is P2O5. Other components can be included in the barrier rib forming material such as an alkali-based metal oxide, B2O3, SiO2, etc. The barrier rib formed of the glass frit can additionally include a photosensitive organic material which may include a crosslinking agent, a polyfunctional monomer or oligomer, a photo initiator, a binder and an additive. A method of forming the barrier ribs comprising the glass frit composition is also provided as is a PDP including such barrier ribs.Type: GrantFiled: September 10, 2009Date of Patent: July 24, 2012Assignee: Samsung SDI Co., LtdInventors: Beom-Wook Lee, Jong-Seo Choi, Kwi-Seok Choi, Myung-Duk Lim, Bum-Jin Chang, Jong-Hee Hwang
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Patent number: 8212751Abstract: The present invention relates to a flat panel display device that is adaptive for preventing a brightness inversion phenomenon generated when the data modulated before are re-modulated in a multi-modulation method where data are modulated several times, and a data multi-modulation method thereof. The flat panel display device includes a first modulator which primarily modulates digital video data, which are to be displayed in a flat panel display panel, with pre-stored first compensation values in order to adjust at least any one of a response characteristic and a contrast ratio of the flat panel display panel. The flat panel display device further includes a second modulator which secondarily modulates the digital video data, which are to be displayed at a defect display area of which the brightness appears different from that of a normal display surface when displaying the same gray level in the flat panel display panel, with pre-stored second compensation values.Type: GrantFiled: July 27, 2007Date of Patent: July 3, 2012Assignee: LG Display Co., Ltd.Inventor: Jong Hee Hwang
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Patent number: 8189017Abstract: An apparatus and method for controlling picture quality of a flat panel display. The apparatus for controlling picture quality of the flat panel display includes a position determining unit which determines a display position of digital video data; a gray-level determining unit which determines a gray-level value of the digital video data; and a frame rate control unit that disperses a plurality of dither patterns determined by a compensation value for compensating for brightness in a boundary between the panel defect region and the non-defect region during a plurality of frame periods and controls data, which will be displayed in the boundary, by the compensation value, if the digital video data is determined to the data which will be displayed in the boundary between the panel defect region and the non-defect region according to the determined result of the position determining unit.Type: GrantFiled: December 31, 2007Date of Patent: May 29, 2012Assignee: LG Display Co., Ltd.Inventors: In Jae Chung, Ji Kyoung Kim, Jong Hee Hwang
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Patent number: 8164604Abstract: A flat panel display device includes a display panel having at least one link pixel which has a non-defect area and a panel defect area and where adjacent pixels are linked to each other; a memory which stores a first compensation data for compensating the data which are to be displayed in the panel defect area, a second compensation data for compensating the data of a bordering part between the panel defect area and the non-defect area, and a third compensation data for compensating the data which are to be displayed in the link pixel. The first compensation data is adjusted through at spatial dispersion or temporal dispersion; the data that are to be displayed in a fixed area inclusive of the boundary are adjusted by dispersing the second compensation data to the fixed area inclusive of the boundary; the data that are to be displayed in the link pixel are adjusted to the third compensation data.Type: GrantFiled: December 11, 2006Date of Patent: April 24, 2012Assignee: LG Display Co., Ltd.Inventors: In-Jae Chung, Deuk-Su Lee, Jong Hee Hwang