Patents by Inventor Hoon Jang
Hoon Jang 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: 12700343Abstract: A display apparatus includes a display panel configured to display an image, a driver configured to drive the display panel, and a power supply including an output circuit configured to charge or discharge power input through an input terminal thereof to output through an output terminal thereof and an output controller configured to control charging or discharging of the output circuit, for supplying power to the display panel, wherein the output controller operates in one of a first driving mode of operating with a first switching frequency and a second driving mode of operating with a second switching frequency which is higher than the first switching frequency.Type: GrantFiled: November 7, 2024Date of Patent: August 4, 2026Assignee: LG Display Co., Ltd.Inventors: Tae Hwa Park, Hoon Jang
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Publication number: 20260212837Abstract: A display apparatus includes a gate shift register to simultaneously drive pixels with a discharge scan signal of a gate high voltage to discharge residual electric charges of the pixels, in a power-off sequence, a first boosting circuit to boost the input voltage to a boost voltage in a display driving sequence, a second boosting circuit to boost the boost voltage to the gate high voltage, and a switch connected between the first and second boosting circuits. During an extra switching period of the second boosting circuit which is performed after the input voltage is down-shifted to an under voltage lock out (UVLO) level, the switch maintains an on state, and the input voltage stored in the first boosting circuit and the boost voltage stored in the second boosting circuit are applied to a power input terminal of the second boosting circuit.Type: ApplicationFiled: November 18, 2025Publication date: July 23, 2026Applicant: LG Display Co., Ltd.Inventors: Hoon JANG, Jun O HUR
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Patent number: 12609086Abstract: A display apparatus includes a display panel configured to display an image, a level shifter configured to extract and output data from a data map of a memory and divide a serial output signal output thereto into a parallel output signal to output periodic signals, based on an enable signal, and a shift register configured to output gate signals which are to be applied to the display panel, based on the periodic signals output from the level shifter.Type: GrantFiled: October 30, 2024Date of Patent: April 21, 2026Assignee: LG Display Co., Ltd.Inventors: Sang Uk Lee, Hoon Jang, Jung Jae Kim
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Publication number: 20260059206Abstract: An image sensing apparatus includes a first photodiode having a first area, a first floating diffusion node in which charges generated by the first photodiode are stored, a first charge transfer transistor configured to transfer the charges generated by the first photodiode to the first floating diffusion node, a second photodiode having a second area smaller than the first area, a second floating diffusion node in which charges generated by the second photodiode are stored, and a second charge transfer transistor configured to transfer the charges generated by the second photodiode to the second floating diffusion node, wherein an image signal at a first illuminance is generated using an output signal based on the charges generated by the first photodiode, and an image signal at a second illuminance higher than the first illuminance is generated using an output signal based on the charges generated by the second photodiode.Type: ApplicationFiled: August 22, 2025Publication date: February 26, 2026Applicant: LX SEMICON CO., LTD.Inventors: Jong Man KIM, Hoon JANG
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Patent number: 12438545Abstract: A level shifter includes a first power input terminal to which a first gate voltage may be applied; a second power input terminal to which a second gate voltage may be applied; a third power input terminal to which a third gate voltage may be applied; an output terminal; a first switch element configured to electrically connect the first power input terminal to the output terminal in response to a voltage of on-intervals of a first control signal; a second switch element configured to electrically connect the second power input terminal to the output terminal in response to a voltage of on-intervals of a second control signal; and a third switch element configured to electrically connect the third power input terminal to the output terminal in response to a voltage of on-intervals of a third control signal.Type: GrantFiled: August 25, 2023Date of Patent: October 7, 2025Assignee: LG Display Co., Ltd.Inventors: Hoon Jang, Jun O Hur, Dong Ju Kim
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Publication number: 20250287709Abstract: An image sensing device includes a substrate on which a photodiode generating charge according to incident light is disposed, a first gate disposed on the substrate to overlap the photodiode so that a portion of a region in which the photodiode is disposed is exposed, and first and second photo gates disposed on the substrate not to overlap the photodiode to receive the charge moved by the first gate.Type: ApplicationFiled: May 20, 2025Publication date: September 11, 2025Applicant: LX SEMICON CO., LTD.Inventor: Hoon JANG
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Patent number: 12400595Abstract: A power supply according to an embodiment and a display device including the same are disclosed. The power supply according to the embodiment includes a reference voltage generation circuit configured to adjust a voltage level of a reference voltage and output the reference voltage when an input voltage is smaller than or equal to a selected threshold value. The power supply includes a power voltage generation circuit configured to adjust and provide an output power according to a fluctuation amount of the input voltage based on the adjusted reference voltage. The output power is varied either by changing the output voltage or by changing the output current.Type: GrantFiled: October 24, 2023Date of Patent: August 26, 2025Assignee: LG Display Co., Ltd.Inventors: Dong Ju Kim, Soon Dong Cho, Hoon Jang, Jun O Hur
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Publication number: 20250218392Abstract: A display apparatus includes a display panel configured to display an image, a level shifter configured to extract and output data from a data map of a memory and divide a serial output signal output thereto into a parallel output signal to output periodic signals, based on an enable signal, and a shift register configured to output gate signals which are to be applied to the display panel, based on the periodic signals output from the level shifter.Type: ApplicationFiled: October 30, 2024Publication date: July 3, 2025Inventors: Sang Uk LEE, Hoon JANG, Jung Jae KIM
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Publication number: 20250193371Abstract: A leakage compensation device includes a pixel array and a plurality of detection circuits. The pixel array includes a plurality of row lines, each of which includes a plurality of pixel circuits. The pixel array stores electric signals corresponding to light in the plurality of pixel circuits during a capture section, and may sequentially output the stored electric signals for each row line whenever a preset time elapses for each row line during an output section. The plurality of detection circuits detects leakage signals for compensating the outputted electric signals.Type: ApplicationFiled: December 6, 2024Publication date: June 12, 2025Applicant: LX SEMICON CO., LTD.Inventor: Hoon JANG
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Publication number: 20250176283Abstract: A single-photon avalanche diode pixel array includes a substrate doped with a first conductive type dopant and having a plurality of pixels formed thereon, a pixel isolation structure for electrically isolating the plurality of pixels from each other, a first highly doped region provided by highly doping the first conductive type dopant at a first surface of the substrate, a trench disposed to have a predetermined depth from the first surface of the substrate toward a second surface of the substrate, a well region provided below the trench to be spaced apart from the first highly doped region by a predetermined distance and provided by doping a second conductive type dopant opposite to the first conductive type dopant to form an avalanche multiplication region, and a second highly doped region formed by highly doping the second conductive type dopant at a surface of the well region exposed by the trench.Type: ApplicationFiled: November 22, 2024Publication date: May 29, 2025Applicant: LX SEMICON CO., LTD.Inventor: Hoon JANG
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Publication number: 20250174179Abstract: A display apparatus includes a display panel configured to display an image, a driver configured to drive the display panel, and a power supply including an output circuit configured to charge or discharge power input through an input terminal thereof to output through an output terminal thereof and an output controller configured to control charging or discharging of the output circuit, for supplying power to the display panel, wherein the output controller operates in one of a first driving mode of operating with a first switching frequency and a second driving mode of operating with a second switching frequency which is higher than the first switching frequency.Type: ApplicationFiled: November 7, 2024Publication date: May 29, 2025Inventors: Tae Hwa PARK, Hoon JANG
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Patent number: 12315405Abstract: A display apparatus includes a display panel driven based on a first gate clock and a second gate clock, a clock supply circuit including a first output terminal for an output of the first gate clock and a second output terminal for an output of the second gate clock, supplying the first output terminal with one of a gate high voltage and a gate low voltage as a first test voltage, and supplying the second output terminal with the other of the gate high voltage and the gate low voltage as a second test voltage, for a first time immediately after a system power is applied thereto, a power generator generating the gate high voltage and the gate low voltage and supplying the gate high voltage and the gate low voltage to the clock supply circuit, and an overcurrent detector receiving a flag signal to recognize overcurrent from the power generator to shut down the power generator, when the first output terminal and the second output terminal are short-circuited with each other at the first time interval.Type: GrantFiled: October 6, 2022Date of Patent: May 27, 2025Assignee: LG Display Co., Ltd.Inventors: Won Yong Jang, Soon Dong Cho, Hoon Jang, Jung Jae Kim, Dong Ju Kim
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Publication number: 20250149978Abstract: A display apparatus includes a display panel configured to display an image, a panel driver configured to drive the display panel, and a power supply including an output circuit, including a first switch and a second switch configured to charge or discharge power input through an input terminal thereof to output through an output terminal thereof, and an output controller including a driving circuit configured to control charging or discharging of the output circuit, for supplying power to the display panel, wherein the driving circuit senses an LX node voltage of the output circuit to determine whether at least one of a first body diode included in the first switch and a second body diode included in the second switch is turned on or not, and based thereon, controls a dead time corresponding to one of the first switch and the second switch.Type: ApplicationFiled: October 10, 2024Publication date: May 8, 2025Inventors: Hoon JANG, Sang Uk LEE
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Patent number: 12051357Abstract: A power supply includes a first converter configured to convert an input voltage into a first output voltage, a first feedback circuit configured to output a first pulse width modulation (PWM) signal to the first converter to control a level of the first output voltage, and a mode controller configured to compare the input voltage and a reference voltage and determine whether the first converter operates in a first mode or a second mode based on the compared result. When the input voltage is less than or equal to the reference voltage, the first converter boosts the input voltage and outputs the boosted voltage as the first output voltage in the first mode. Further, when the input voltage is greater than the reference voltage, the first converter bypasses the input voltage and outputs the bypassed voltage as the first output voltage in the second mode.Type: GrantFiled: May 23, 2023Date of Patent: July 30, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Hoon Jang, Sang-Uk Lee, Taehwa Park, SoonDong Cho, Wonyong Jang
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Publication number: 20240221653Abstract: A power supply according to an embodiment and a display device including the same are disclosed. The power supply according to the embodiment includes a reference voltage generation circuit configured to adjust a voltage level of a reference voltage and output the reference voltage when an input voltage is smaller than or equal to a selected threshold value. The power supply includes a power voltage generation circuit configured to adjust and provide an output power according to a fluctuation amount of the input voltage based on the adjusted reference voltage. The output power is varied either by changing the output voltage or by changing the output current.Type: ApplicationFiled: October 24, 2023Publication date: July 4, 2024Inventors: Dong Ju KIM, Soon Dong CHO, Hoon JANG, Jun O HUR
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Publication number: 20240204781Abstract: A level shifter includes a first power input terminal to which a first gate voltage may be applied; a second power input terminal to which a second gate voltage may be applied; a third power input terminal to which a third gate voltage may be applied; an output terminal; a first switch element configured to electrically connect the first power input terminal to the output terminal in response to a voltage of on-intervals of a first control signal; a second switch element configured to electrically connect the second power input terminal to the output terminal in response to a voltage of on-intervals of a second control signal; and a third switch element configured to electrically connect the third power input terminal to the output terminal in response to a voltage of on-intervals of a third control signal.Type: ApplicationFiled: August 25, 2023Publication date: June 20, 2024Applicant: LG DISPLAY CO., LTD.Inventors: Hoon JANG, Jun O HUR, Dong Ju KIM
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Patent number: 11904339Abstract: A water ejecting apparatus includes a case and a water ejection unit coupled to one side of the case. The water ejection unit includes a fixed cover connected to the case and including a lifting gear provided on one side thereof and extending in an up-down direction and a guide bar provided on the other side thereof and extending in the up-down direction, a lifting cover movably accommodated inside the fixed cover, a lifting motor coupled to the lifting cover and configured to interwork with the lifting motor, and a water ejection nozzle installed at a lower end of the lifting cover and configured to eject water. One side of the gear module is in contact with and supported by the lifting gear and the other side thereof is in contact with and supported by the guide bar.Type: GrantFiled: June 4, 2020Date of Patent: February 20, 2024Assignee: LG Electronics Inc.Inventors: Heesang Yoon, Minho Kim, Hoon Jang, Dongkoo Han, Hyeonggeun Kim, Keunho Roh, Jongho Park, Younggwan Song
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Publication number: 20230306895Abstract: A power supply including a first converter configured to convert an input voltage into a first output voltage; a second converter configured to convert the first output voltage into a second output voltage; a first feedback circuit configured to output a first pulse width modulation (PWM) signal to the first converter to control a level of the first output voltage; and a mode controller configured to compare the input voltage and a reference voltage and determine whether the first converter operates in a first mode or a second mode based on the compared result. When the input voltage is less than or equal to the reference voltage, the first converter boosts the input voltage and output the boosted voltage as the first output voltage in the first mode, and when the input voltage is greater than the reference voltage, the first converter bypasses the input voltage and output the bypassed voltage as the first output voltage in the second mode.Type: ApplicationFiled: May 23, 2023Publication date: September 28, 2023Applicant: LG Display Co., Ltd.Inventors: Hoon JANG, Sang-Uk LEE, Taehwa PARK, SoonDong CHO, Wonyong JANG
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Patent number: 11717844Abstract: A water ejecting apparatus includes a case and a water ejection unit coupled to one side of the case. The water ejection unit includes a rotator seated inside at a front of the case, a first lifting cover coupled to one side of the rotator and allowing a lifting gear extending in an up-down direction to be fixed thereto, a second lifting cover movably accommodated inside the first lifting cover, a lifting motor coupled to the second lifting cover and configured to interwork with the lifting motor, and a water ejection nozzle installed at a lower end of the second lifting cover and configured to eject water. A water ejection pipe having one end connected to the water ejection nozzle and the other end extending to an inside of the case is disposed in a lower space of the lifting motor and the gear module.Type: GrantFiled: June 5, 2020Date of Patent: August 8, 2023Assignee: LG Electronics Inc.Inventors: Heesang Yoon, Minho Kim, Hoon Jang, Dongkoo Han, Hyeonggeun Kim, Keunho Roh, Jongho Park, Younggwan Song
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Patent number: 11699384Abstract: A display device can include a display panel having a plurality of pixels disposed on a substrate, and a power supplier configured to supply a driving voltage to the display panel. The power supplier can include a first converter configured to receive an input voltage supplied from an external system and convert the input voltage into a boost voltage, a second converter configured to convert the boost voltage into the driving voltage, a first feedback unit configured to output a first pulse width modulation (PWM) signal to the first converter so that the boost voltage is proportional to a first reference voltage, and a second feedback unit configured to output a second PWM signal to the second converter so that the driving voltage is proportional to a second reference voltage.Type: GrantFiled: September 9, 2022Date of Patent: July 11, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Hoon Jang, Sang-Uk Lee, Taehwa Park, SoonDong Cho, Wonyong Jang