Patents by Inventor Ahn-Ho Jee
Ahn-Ho Jee 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: 11823608Abstract: A display device includes a substrate, pixels on the substrate, and a driving circuit unit connected to the pixels through data lines. The driving circuit unit includes a thermistor having a resistance value which changes according to a temperature of the substrate and a register group in which set values of a dimming ratio corresponding to the temperature are stored, the driving circuit unit controls the pixels to emit light with a first luminance based on the dimming ratio when the temperature based on the resistance value is less than a minimum temperature, the driving circuit unit controls the pixels to emit light with a second luminance based on the dimming ratio when the temperature is greater than the minimum temperature and less than a maximum temperature, and the driving circuit unit stops image display of the pixels when the temperature is greater than the maximum temperature.Type: GrantFiled: August 4, 2022Date of Patent: November 21, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ahn Ho Jee, Sang Woo Park
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Publication number: 20230215322Abstract: A display device includes a substrate, pixels on the substrate, and a driving circuit unit connected to the pixels through data lines. The driving circuit unit includes a thermistor having a resistance value which changes according to a temperature of the substrate and a register group in which set values of a dimming ratio corresponding to the temperature are stored, the driving circuit unit controls the pixels to emit light with a first luminance based on the dimming ratio when the temperature based on the resistance value is less than a minimum temperature, the driving circuit unit controls the pixels to emit light with a second luminance based on the dimming ratio when the temperature is greater than the minimum temperature and less than a maximum temperature, and the driving circuit unit stops image display of the pixels when the temperature is greater than the maximum temperature.Type: ApplicationFiled: August 4, 2022Publication date: July 6, 2023Inventors: Ahn Ho JEE, Sang Woo PARK
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Patent number: 10395572Abstract: A display device includes a display panel including a display panel including pixels, a timing controller configured to calculate an on-pixel ratio of input image data provided from an external component, and a data driver configured to select a first gamma correction value from among a plurality of gamma correction values based on the on-pixel ratio, and configured to generate a data signal based on the input image data and the first gamma correction value.Type: GrantFiled: November 17, 2016Date of Patent: August 27, 2019Assignee: Samsung Display Co., Ltd.Inventor: Ahn-Ho Jee
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Publication number: 20170162094Abstract: A display device includes a display panel including a display panel including pixels, a timing controller configured to calculate an on-pixel ratio of input image data provided from an external component, and a data driver configured to select a first gamma correction value from among a plurality of gamma correction values based on the on-pixel ratio, and configured to generate a data signal based on the input image data and the first gamma correction value.Type: ApplicationFiled: November 17, 2016Publication date: June 8, 2017Inventor: Ahn-Ho Jee
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Patent number: 9274374Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.Type: GrantFiled: July 1, 2014Date of Patent: March 1, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn
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Publication number: 20140313454Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.Type: ApplicationFiled: July 1, 2014Publication date: October 23, 2014Inventors: Ahn-Ho JEE, Kun-Bin LEE, Dong-Hwan KIM, Hyeong-Cheol AHN
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Patent number: 8786795Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.Type: GrantFiled: October 14, 2009Date of Patent: July 22, 2014Assignee: Samsung Display Co., Ltd.Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn
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Publication number: 20100079709Abstract: The present invention relates to a liquid crystal display. The liquid crystal display includes a liquid crystal panel having a first and a second side, a first polarizer arranged on the first side of the liquid crystal panel, and a backlight unit arranged on the first side of the liquid crystal panel, the first polarizer being arranged between the liquid crystal panel and the backlight unit, a second polarizer arranged on the second side of the liquid crystal panel, and a first half-wave plate arranged on the second side of the liquid crystal panel, the second polarizer arranged between the liquid crystal panel and the first half-wave plate. A slow axis of the first half-wave plate meets a transmission axis of the second polarizer at a first angle ?1 so that the first half-wave plate rotates the polarization axis of polarized light transmitted from the second polarizer.Type: ApplicationFiled: July 6, 2009Publication date: April 1, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-Sang Park, Dong-Hwan Kim, Ahn-Ho Jee, Chang-Kil Lee, Chang-Wook Kang
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Publication number: 20100026927Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.Type: ApplicationFiled: October 14, 2009Publication date: February 4, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ahn-Ho JEE, Kun-Bin LEE, Dong-Hwan KIM, Hyeong-Cheol AHN
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Patent number: 7630023Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.Type: GrantFiled: November 2, 2005Date of Patent: December 8, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn
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Publication number: 20080195841Abstract: Disclosed is a driving apparatus of a display device having a plurality of pixels. The driving apparatus includes a signal generator that generates a shutdown signal, first and second register units that store register values, a gate driver that transmits gate signals to the pixels, a data driver that transmits data voltages to the pixels, and a signal controller that controls the gate driver and the data driver based on the register values of the first and second register units. An initialization of the register values stored in the register units is controlled based on the shutdown signal. The first register unit and the second register unit have the same construction.Type: ApplicationFiled: November 28, 2007Publication date: August 14, 2008Inventors: Ahn-Ho Jee, Dong-Hwan Kim, Dong-Hwan Lee, Tae-Hun Kim
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Publication number: 20080024480Abstract: A display panel includes a light-providing unit, a display panel and a panel driving unit. The display panel selectively displays an image corresponding to a first driving mode and a second driving mode using light from the light-providing unit. The panel driving unit includes a power supply, a data driver and a gate controller. The power supply includes a first power supply and a second power supply selectively outputting a first power voltage and a second power voltage corresponding to the first driving mode and the second driving mode. The second power voltage is smaller than the first power voltage. The data driver and the gate controller respectively output a data voltage and a gate controlling signal to the display panel corresponding to the driving mode.Type: ApplicationFiled: June 21, 2007Publication date: January 31, 2008Inventors: Ahn-Ho Jee, Dong-Hwan Lee, Chul-Hwan Lee, Young-Man Kim
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Publication number: 20080012819Abstract: A gate driving unit connected to odd-numbered gate lines and a gate driving unit connected to even-numbered gate lines are sequentially operated, and a common voltage signal is inverted when the operation states of the two gate driving units are changed, thereby minimizing a number of changes in the voltage level of the common voltage signal supplied to a display panel during one frame, reducing power consumption of the display device, and allowing pixels of the display panel to perform line inversion.Type: ApplicationFiled: March 23, 2007Publication date: January 17, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Chul Hwan Lee, Ahn Ho Jee, Dong Hwan Lee, Jin Young Choi, Yong Han Park, Tae Kyung Lee
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Publication number: 20070102805Abstract: A chip type electric device and a display device including the same is capable of preventing a bonding defect caused by a deviation in height between external electrodes. The chip type electric device includes a body in which a plurality of dielectric layers is stacked, a contact hole penetrating at least one of the plurality of dielectric layers, pairs of connection electrodes buried within the contact hole, and pairs of external electrodes connected to the pairs of connection electrodes and formed on a back surface of the body.Type: ApplicationFiled: October 27, 2006Publication date: May 10, 2007Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Hyung Guel KIM, Kun Bin LEE, Dong Hwan KIM, Ahn Ho JEE, Hyeong Cheol AHN
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Publication number: 20060125760Abstract: A method of driving a display device is provided, including storing drive data blocks in a drive data block unit, fetching the drive data blocks from the drive data block unit, storing the drive data blocks in data block setting registers, driving the display device using the drive data blocks stored in the data block setting registers, wherein the drive data blocks contain data used in configuring, controlling, sequencing, setting or initializing the display device.Type: ApplicationFiled: December 9, 2005Publication date: June 15, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Ahn-Ho Jee, Kun-Bin Lee, Deuk-Soo Kim, Hyeong-Cheol Ahn
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Publication number: 20060110949Abstract: A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.Type: ApplicationFiled: November 2, 2005Publication date: May 25, 2006Inventors: Ahn-Ho Jee, Kun-Bin Lee, Dong-Hwan Kim, Hyeong-Cheol Ahn