Patents by Inventor Kyung Ho Hwang
Kyung Ho 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: 20180047335Abstract: An organic light emitting display device includes a display panel including pixels that includes an organic light emitting diode that emits light based on a driving current, a data driver providing a data signal to the pixels through a data line, a scan driver providing a scan signal to the pixels through a scan line, an emission control driver providing an emission control signal to the pixels through an emission control line, a first power provider providing a first high power voltage to the pixels through a first power providing line and a second power provider providing a second high power voltage to the pixels through a second power providing line and coupled to the first power provider. The second power provider includes a static current circuit that maintains the driving current having uniform value when the display panel is operated in a low frequency driving mode.Type: ApplicationFiled: June 15, 2017Publication date: February 15, 2018Inventors: Kyung-Ho HWANG, Won-Ju SHIN, Dong-Hwan LEE, Jin-Young JEON
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Patent number: 9847054Abstract: A display device and an electronic device including the same are disclosed. In one aspect, the display device includes a display panel divided into first and second regions. The display device also includes a scan driver including a plurality of first scan stages configured to sequentially provide a scan signal to the pixels in the first region, a plurality of second stages configured to sequentially provide the scan signal to the pixels in the second region, and a scan switch connected between the first and second stages. One of the first scan stages is configured to provide a scan carry signal to the scan switch, the scan switch is configured to selectively provide the scan carry signal or a scan disable signal to the second scan stages, and the scan carry signal and the scan disable signal are configured to halt the operation of the second scan stages.Type: GrantFiled: July 22, 2015Date of Patent: December 19, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kyung-Ho Hwang, Sung-Un Park, Eun-Jung Oh
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Publication number: 20170335807Abstract: Disclosed is an air filter using high density filter paper. The filter paper may include a thermally bonded non-woven fabric filter paper 10 having air permeability to filter foreign materials of passed polluted air and change the polluted air to fresh air. The non-woven fabric filter paper includes wrinkled portions 10-1 and 10-N that are folded at a predetermined interval. A thickness of the wrinkle portions 10-1 and 10-N are provided with dense layers 15 and 17 comprising a first polyethylene terephthalate (PET) fiber 20-2 that can shrink by heat and a second polyethylene terephthalate (PET) fiber 20-1 that deforms upon by heat treatment.Type: ApplicationFiled: November 14, 2016Publication date: November 23, 2017Inventors: Tae-Min Yun, Chul-Kyu Kwack, Young-Hae Kim, Kyung-Ho Hwang
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Patent number: 9789449Abstract: A refrigerator having a carbonated water production module integrally provided with a carbon dioxide gas cylinder having carbon dioxide gas stored therein and a carbonated water tank to mix purified water with the carbon dioxide gas to produce carbonated water. The carbonated water production module is mounted to the rear surface of the door, and thus it may be cooled by cool air in the refrigeration compartment and be easy to access, and thereby repair and replacement thereof is facilitated. The dispenser includes a carbonated water discharge channel into which carbonated water from the carbonated water tank is discharged, and a purified water discharge channel into which purified water from the water tank is discharged. Since the purified water discharge channel does not pass through the carbonated water tank, a user is allowed to selectively dispense purified water or carbonated water anytime.Type: GrantFiled: April 2, 2013Date of Patent: October 17, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong Soo Kyong, Sang Tak Lee, Kyung Ho Hwang, Hyun Hee Lim
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Publication number: 20170241701Abstract: A refrigerator includes a water tank which stores water, a carbon dioxide cylinder which stores carbon dioxide, a dispenser module which accommodates an external container and supplies the carbon dioxide and the water to the external container, and a controller which supplies the water to the external container and supplies the carbon dioxide to the external container when supplying the water is completed.Type: ApplicationFiled: July 20, 2015Publication date: August 24, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Jong Ho LEE, Jea Won LEE, Byung Mo YU, Kyung Ho HWANG
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Publication number: 20170240403Abstract: Disclosed herein is a refrigerator capable of producing carbonated water and a control method thereof. The refrigerator includes a carbonated water tank to store carbonated water a carbon dioxide gas supply valve to open/close a carbon dioxide gas flow path to guide carbon dioxide gas from a carbon dioxide gas cylinder to the carbonated water tank, and a carbonated water tank pressure sensor to detect an internal pressure of the carbonated water tank.Type: ApplicationFiled: March 31, 2017Publication date: August 24, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Koog AN, Kyung Ho HWANG, Yong Soo KYONG, Jea Won LEE, Jong Ho LEE
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Publication number: 20170124958Abstract: A display device includes a display panel including a gate line, a data line, and a pixel at a crossing region of the gate line and the data line, a timing controller configured to generate a gate driving control signal, a data driving control signal, and a power control signal based on a display period corresponding to a time interval of frames, a gate driver configured to provide a gate signal to the pixel through the gate line based on the gate driving control signal, a data driver configured to provide a data signal to the pixel through the data line based on the data driving control signal, and a power supply configured to generate a power voltage to drive the pixel, and configured to adjust the power voltage based on the power control signal during the display period.Type: ApplicationFiled: October 14, 2016Publication date: May 4, 2017Inventors: Si-Beak Pyo, Won-Ju Shin, Kyung-Ho Hwang
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Publication number: 20170116922Abstract: An organic light emitting display device includes a display panel, a scan driver, a data driver, a power supply which provides a first voltage to a first power terminal of the pixel and selectively provides the first voltage or a second voltage to a second power terminal of the pixel, and a controller which selects one of a normal driving mode and a power saving mode as a panel driving mode where the power supply provides the second voltage to the second power terminal of the pixel in a first period of one frame period and provides the first voltage to the second power terminal of the pixel in a second period of one frame period when the panel driving mode is the power saving mode.Type: ApplicationFiled: August 15, 2016Publication date: April 27, 2017Inventors: Yeon-Shil JUNG, Hyung-Min SHIN, Ji-Tae KIM, Tae-Wook KIM, Sung-Un PARK, Kyung-Ho HWANG
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Publication number: 20170110048Abstract: A pixel includes a pixel circuit and a storage circuit. The pixel circuit provides a driving current corresponding to a data signal to an organic light emitting diode. The storage circuit provides the data signal to the pixel circuit. The storage circuit includes a storage capacitor to store the data signal and a control transistor to transmit a data signal supplied from a data output line to the storage capacitor when the control transistor is turned on.Type: ApplicationFiled: August 19, 2016Publication date: April 20, 2017Inventors: Ji Tae KIM, Hyung Min SHIN, Kyung Ho HWANG
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Publication number: 20170103707Abstract: An organic light emitting display device includes pixel unit, a power supply, and a timing controller. The power supply supplies a driving voltage to the pixel unit. The timing controller divides the pixel unit into a plurality of regions, calculates color on-pixel ratio (C-OPR) values of the regions based on image data, and controls the power supply based on the C-OPR values of the regions.Type: ApplicationFiled: August 19, 2016Publication date: April 13, 2017Inventors: Sung Un PARK, Hyung Min SHIN, Kyung Ho HWANG
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Patent number: 9615719Abstract: A dishwasher including a washing chamber to wash dishes, a sump concavely formed at a lower portion of the washing chamber to collect water used in washing, a microfilter disposed at the sump to filter out dirt produced when the dishes are washed, and an ultrasonic generator to radiate ultrasonic waves toward the microfilter. Since the microfilter is automatically cleaned by the ultrasonic generator, a user may not need to manually clean the microfilter.Type: GrantFiled: June 4, 2013Date of Patent: April 11, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Hee Lim, Su Jin Seong, Ae Lee Im, Jea Won Lee, Jong Ho Lee, Jung Min Choi, Hyung Kwen Ham, Kyung Ho Hwang
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Publication number: 20170076695Abstract: An organic light emitting display device includes a gamma reference voltage setter to set a gamma reference voltage, a gamma reference voltage generator to generate a gamma reference voltage set by the gamma reference voltage setter, and a gamma voltage generator to generate a gamma voltage based on the gamma reference voltage. The gamma reference voltage setter sets the gamma reference voltage to a first temporary value, increases the first temporary value by a first delta value, searches a second temporary value at which luminance of the display panel is less than a preset value, and sets the gamma reference voltage based on the searched second temporary value.Type: ApplicationFiled: May 24, 2016Publication date: March 16, 2017Inventors: Kyung Ho HWANG, Young Seob KIM, Ji Tae KIM
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Patent number: 9460646Abstract: A display device includes a display panel having a glass substrate, a first input pad formed on the glass substrate and a second input pad formed on the glass substrate, and a driver integrated circuit mounted on the glass substrate of the display panel using a chip-on-glass (COG) method. The driver integrated circuit includes first and second input bumps respectively coupled to the first and second input pads, and an internal ground line coupled to the first and second input bumps. The first input bump of the driver IC receives a test signal through the first input pad when a COG bonding test is performed, and receives a ground voltage when the display device operates.Type: GrantFiled: June 17, 2013Date of Patent: October 4, 2016Assignee: Samsung Display Co., Ltd.Inventors: Kyung-Ho Hwang, Dong-Hwan Lee
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Patent number: 9447560Abstract: The present disclosure relates to a parallel linkage-type working apparatus for construction equipment in which a parallel lever and a parallel link operate to prevent a working tool from bending inward so that, even if the working tool is raised, a tilting phenomenon in which the working tool is inclined inward may be prevented, and an amount of change in posture of the working tool at each height may be reduced. Also, the parallel linkage-type working apparatus is capable of increasing excavation ability or power with a posture on the ground surface by supplying a larger amount of hydraulic fluid at one time when working hydraulic pressure is supplied to each cylinder head, in comparison with a case in which working hydraulic pressure is supplied to a cylinder rod.Type: GrantFiled: December 24, 2012Date of Patent: September 20, 2016Assignees: Doosan Infacore Co., Ltd., SNU R&DB FoundationInventors: Hyuk Joong Kim, Young Sun Yoo, Kyung Ho Hwang, Jong Won Kim, Yong Hee Han, Sun Ho Kim, Heung Keun Park
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Publication number: 20160258674Abstract: Disclosed herein are a refrigerator and a control method of the same. The refrigerator includes a purified water pump which increases a pressure of water, a carbon dioxide regulator which decreases a pressure of carbon dioxide, a mixing pipe which mixes water which introduced from the purified water pump and carbon dioxide which introduced from the carbon dioxide regulator, and produces carbonated water, a user interface which receives a production condition of carbonated water from a user, and a controller which controls the purified water pump and the carbon dioxide regulator such that the pressure of the water and the pressure of the carbon dioxide reach a target pressure corresponding to the input production condition.Type: ApplicationFiled: March 1, 2016Publication date: September 8, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyung Ho HWANG, Jea Won Lee, Byung Mo Yu, Jong Ho Lee, Hyeon Kyu Lim
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Patent number: 9421503Abstract: A refrigerator is disclosed. The refrigerator includes a body, a carbonated water tank to produce carbonated water through mixing of clean water with carbon dioxide gas, a sensor unit inserted, at least a portion thereof, into the carbonated water tank, to sense an internal state of the carbonated water tank, and a holding unit disposed at one side of the carbonated water tank while holding the sensor unit in a fixed state. Through this configuration, it is possible to achieve easy coupling of the sensor unit and lines to the carbonated water tank while preventing water leakage even when the internal pressure of the carbonated water tank is high.Type: GrantFiled: February 25, 2014Date of Patent: August 23, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Koog An, Kyung Ho Hwang, Sang Min Park
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Publication number: 20160238309Abstract: Disclosed herein is a refrigerator which includes a carbonated water production assembly, wherein the carbonated water production assembly includes a structure in which a carbonated water container in which carbonated water is produced is installed as a production module, and a structure of a sensor which senses installation of the carbonated water container. Through this, when the carbonated water container is incorrectly installed or not installed, the carbonated water is prevented from being unintentionally produced, and thus efficiency of a carbonated water production may be improved.Type: ApplicationFiled: February 16, 2016Publication date: August 18, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Koog AN, Kyung Ho HWANG
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Publication number: 20160225311Abstract: A display device and an electronic device including the same are disclosed. In one aspect, the display device includes a display panel divided into first and second regions. The display device also includes a scan driver including a plurality of first scan stages configured to sequentially provide a scan signal to the pixels in the first region, a plurality of second stages configured to sequentially provide the scan signal to the pixels in the second region, and a scan switch connected between the first and second stages. One of the first scan stages is configured to provide a scan carry signal to the scan switch, the scan switch is configured to selectively provide the scan carry signal or a scan disable signal to the second scan stages, and the scan carry signal and the scan disable signal are configured to halt the operation of the second scan stages.Type: ApplicationFiled: July 22, 2015Publication date: August 4, 2016Inventors: Kyung-Ho Hwang, Sung-Un Park, Eun-Jung Oh
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Publication number: 20150160906Abstract: An interface includes a transmitter to transmit and receiver. The transmitter transmits data and a clock signal through data and clock signal lanes, respectively. The receiver receives the data and clock signal. The transmitter periodically inserts a high speed data transmission (HSDT) entering sequence into the clock signal.Type: ApplicationFiled: July 23, 2014Publication date: June 11, 2015Inventor: Kyung Ho HWANG
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Patent number: 8947393Abstract: A resistive touch screen panel includes: a first substrate having a first side; a second substrate opposing the first substrate, the second substrate having a first side facing the first side of the first substrate; a plurality of detecting electrodes arranged in a first direction on the first side of the first substrate; a plurality of power electrodes arranged in a second direction that crosses the first direction on the first side of the second substrate; a power supply unit for supplying power to the power electrodes and the detecting electrodes; and a plurality of resistors between the power supply unit and the power electrodes, in which the resistors have resistances determined by 2nC (n is a nonnegative integer and C is a constant) and the resistances corresponding to different ones of the power electrodes are different.Type: GrantFiled: May 10, 2011Date of Patent: February 3, 2015Assignee: Samsung Display Co., Ltd.Inventor: Kyung-Ho Hwang