Patents by Inventor Bon-Sung KOO
Bon-Sung KOO 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: 11243678Abstract: Image panning method is disclosed. Embodiments provide a method performed by a device for placing a second object on a first object on screen, including moving the first object on screen, responsive to a drag moving the second object over the first object in a first direction, in a second direction opposite to the first direction, and placing the second object at end position of the drag in the first object, when the drag is terminated for the second object. The method allows a drag for moving the second object to a vicinity of an end of the first object or to an outside area of the first object beyond the end of the first object.Type: GrantFiled: December 28, 2018Date of Patent: February 8, 2022Assignee: PJ FACTORY CO., LTD.Inventors: Jung Hwan Park, Hee Kyung Kang, Bon Sung Koo
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Publication number: 20200341608Abstract: Image panning method is disclosed. Embodiments provide a method performed by a device for placing a second object on a first object on screen, including moving the first object on screen, responsive to a drag moving the second object over first object in first direction, in a second direction opposite to first direction, and placing the second object at end position of the drag in the first object, when the drag is terminated for the second object, wherein the moving of first object in second direction includes moving, even when the end of the first object reaches an end of the screen, the first object continuously in the second direction in accordance with the drag of the second object in the first direction, to thereby allow a drag for moving the second object to a vicinity of an end of the first object or to an outside area of the first object beyond the end of the first object.Type: ApplicationFiled: December 28, 2018Publication date: October 29, 2020Applicant: PJ FACTORY CO., LTD.Inventors: Jung Hwan PARK, Hee Kyung KANG, Bon Sung KOO
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Patent number: 9747861Abstract: A driving voltage generating device, a display device including the same, and a method of generating a driving voltage are provided. The driving voltage generating device includes a driving voltage setting unit receiving initially set data on a driving voltage and a feedback voltage and outputting a control signal, a driving voltage trimmer receiving finely adjusted data on the driving voltage and adjusting the feedback voltage, and a DC to DC converter generating the driving voltage based on the control signal and an input voltage.Type: GrantFiled: June 17, 2014Date of Patent: August 29, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yang Uk Nam, Jong Jae Lee, Bon-Sung Koo, Jun Dal Kim, Se Young Heo, Jun Ki Hong
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Patent number: 9672087Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.Type: GrantFiled: July 15, 2014Date of Patent: June 6, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jong-Jae Lee, Eui-Dong Hwang, Bon-Sung Koo, Jun-Dal Kim, Seung-Hwan Moon, Dong-Won Park
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Patent number: 9666135Abstract: Provided is a display device, including: a plurality of pixels; a scan driver connected to a plurality of scanning lines connected to the plurality of pixels; and a gate signal generator configured to determine a level of a gate-on voltage according to ambient temperature and to supply the gate-on voltage to the scan driver, wherein the gate signal generator is further configured to apply a hysteresis characteristic to a thermistor voltage to vary according to the ambient temperature.Type: GrantFiled: July 11, 2014Date of Patent: May 30, 2017Assignee: Samsung Display Co., Ltd.Inventors: Bon-Sung Koo, Jong Jae Lee, Eui-Dong Hwang, Jun Dal Kim, Yang Uk Nam
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Patent number: 9570027Abstract: A method of method of protecting a gate driver circuit configured to provide a gate line of a display panel with a gate signal includes generating a clock signal to drive the gate driver circuit, sensing an output current of the clock signal, detecting an overcurrent of the clock signal based on an overcurrent determining factor, determining whether the clock signal is in an overcurrent condition based on a count number of the overcurrent, generating a shutdown signal when the clock signal is in the overcurrent condition and blocking the clock signal from being applied to the gate driver circuit based on the shutdown signal.Type: GrantFiled: August 7, 2014Date of Patent: February 14, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun-Dal Kim, Jong-Jae Lee, Bon-Sung Koo, Yang-Uk Nam, Se-Young Heo
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Patent number: 9257099Abstract: A display device including a voltage generator is disclosed. The voltage generator includes an analog driving voltage generator to convert a source voltage from an external source to an analog driving voltage and to output the analog driving voltage through an output terminal, a capacitor connected between the output terminal and a ground voltage node, and a discharge circuit connected between the output terminal and the ground voltage node to discharge a current at the output terminal in response to a blank synchronization signal.Type: GrantFiled: January 2, 2013Date of Patent: February 9, 2016Assignee: Samsung Display Co., Ltd.Inventors: Bon-Sung Koo, Jong Jae Lee, Eui-Dong Hwang
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Publication number: 20150194800Abstract: A method of method of protecting a gate driver circuit configured to provide a gate line of a display panel with a gate signal includes generating a clock signal to drive the gate driver circuit, sensing an output current of the clock signal, detecting an overcurrent of the clock signal based on an overcurrent determining factor, determining whether the clock signal is in an overcurrent condition based on a count number of the overcurrent, generating a shutdown signal when the clock signal is in the overcurrent condition and blocking the clock signal from being applied to the gate driver circuit based on the shutdown signal.Type: ApplicationFiled: August 7, 2014Publication date: July 9, 2015Inventors: Jun-Dal KIM, Jong-Jae LEE, Bon-Sung KOO, Yang-Uk NAM, Se-Young HEO
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Publication number: 20150194085Abstract: A driving voltage generating device, a display device including the same, and a method of generating a driving voltage are provided. The driving voltage generating device includes a driving voltage setting unit receiving initially set data on a driving voltage and a feedback voltage and outputting a control signal, a driving voltage trimmer receiving finely adjusted data on the driving voltage and adjusting the feedback voltage, and a DC to DC converter generating the driving voltage based on the control signal and an input voltage.Type: ApplicationFiled: June 17, 2014Publication date: July 9, 2015Inventors: YANG UK NAM, Jong Jae Lee, Bon-Sung Koo, Jun Dal Kim, Se Young Heo, Jun Ki Hong
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Publication number: 20150115826Abstract: Provided is a display device, including: a plurality of pixels; a scan driver connected to a plurality of scanning lines connected to the plurality of pixels; and a gate signal generator configured to determine a level of a gate-on voltage according to ambient temperature and to supply the gate-on voltage to the scan driver, wherein the gate signal generator is further configured to apply a hysteresis characteristic to a thermistor voltage to vary according to the ambient temperature.Type: ApplicationFiled: July 11, 2014Publication date: April 30, 2015Inventors: Bon-Sung KOO, Jong Jae LEE, Eui-Dong HWANG, Jun Dal KIM, Yang Uk NAM
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Publication number: 20150026506Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.Type: ApplicationFiled: July 15, 2014Publication date: January 22, 2015Inventors: Jong-Jae LEE, Eui-Dong HWANG, Bon-Sung KOO, Jun-Dal KIM, Seung-Hwan MOON, Dong-Won PARK
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Publication number: 20140078188Abstract: A driving device of a display device includes: a reference voltage generator configured to receive a high potential power supply voltage, a low potential power supply voltage and a medium power supply voltage and to generate reference voltages between the high potential power supply voltage and the low potential power supply voltage, where the low potential power supply voltage is lower than the high potential power supply voltage, and the medium power supply voltage has a value between the high potential power supply voltage and the low potential power supply voltage; a gray reference voltage generator configured to receive and divide the reference voltages and to generate gray reference voltages; and a data driver configured to receive the gray reference voltages and the high and medium potential power supply voltages, and to generate data voltages using the gray reference voltages and the high and medium potential power supply voltages.Type: ApplicationFiled: January 14, 2013Publication date: March 20, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Eui-Dong HWANG, Bon-Sung KOO, Jun Dal KIM, Jong Jae LEE, Se Young HEO
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Publication number: 20140049528Abstract: A display device including a voltage generator is disclosed. The voltage generator includes an analog driving voltage generator to convert a source voltage from an external source to an analog driving voltage and to output the analog driving voltage through an output terminal, a capacitor connected between the output terminal and a ground voltage node, and a discharge circuit connected between the output terminal and the ground voltage node to discharge a current at the output terminal in response to a blank synchronization signal.Type: ApplicationFiled: January 2, 2013Publication date: February 20, 2014Applicant: Samsung Display Co., Ltd.Inventors: Bon-Sung KOO, Jong Jae LEE, Eui-Dong HWANG