Patents by Inventor Tae-Gon IM
Tae-Gon IM 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: 20210201734Abstract: A display device includes a timing controller which supplies a clock training signal through a data clock signal line and a first control signal through a shared signal line in a first period of one frame, and supplies image data through the data clock signal line in a second period of the one frame, a data driver provided with data driving circuits which generate a clock signal based on the clock training signal and the first control signal in the first period, and generate data voltages based on the clock signal and the image data in the second period, and a pixel part which receives the data voltages from the data driver. The data driver may supply a second control signal indicating a reception state of the data driver to the timing controller through the shared signal line in the second period.Type: ApplicationFiled: July 24, 2020Publication date: July 1, 2021Inventors: Soo Yeon KIM, Ji Ye LEE, Hee Jeong SEO, Tae Gon IM, Jung Hwan CHO
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Publication number: 20210090512Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.Type: ApplicationFiled: November 30, 2020Publication date: March 25, 2021Inventors: Seung-Wan KIM, Min-Soo CHOI, Gwang-Teak LEE, Tae-Gon IM, Myoung-Soo KIM, Hwan-Woong LEE, Seung-Young CHOI
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Patent number: 10878774Abstract: A display device includes a timing controller configured to supply a first set signal to a data control signal line in a first frequency mode, and to supply a second set signal and a data signal to the data control signal line in a second frequency mode that is different from the first frequency mode, a data driver configured to recover the data signal supplied to the data control signal line according to a signal recovery characteristic value, to generate a plurality of data voltages based on the recovered data signal, and to adjust the signal recover characteristic value based on the first set signal and the second set signal, and a display unit including a plurality of pixels that emit lights with gray scales corresponding to the plurality of data voltages.Type: GrantFiled: February 27, 2019Date of Patent: December 29, 2020Assignee: Samsung Display Co., Ltd.Inventors: Tae Gon Im, Myeong Su Kim, Bo Yeon Kim, Sun Koo Kang, Yong Bum Kim, Dong Won Park, Jung Hwan Cho
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Patent number: 10867570Abstract: A display device includes a display panel including data lines, gate lines, and pixels connected to the data lines and the gate lines, a data driver configured to drive the data lines, a plurality of gate drivers, each configured to drive a corresponding portion of the gate lines, and a plurality of feedback lines connected to one of the data lines at a plurality of measurement positions corresponding to the plurality of gate drivers. The data driver applies a test voltage to the data line, receives the test voltage as a plurality of feedback voltages through the plurality of feedback lines, and determines gate shift amounts at the plurality of measurement positions corresponding to the plurality of gate drivers based on the plurality of feedback voltages. The gate drivers apply gate signals to the gate lines that are shifted by the determined gate shift amounts.Type: GrantFiled: April 29, 2019Date of Patent: December 15, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Han Lee, Sun-Koo Kang, Soo Yeon Kim, Tae Gon Im, Moon Shik Kang, Jung Hwan Cho
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Patent number: 10854149Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.Type: GrantFiled: December 9, 2016Date of Patent: December 1, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung-Wan Kim, Min-Soo Choi, Gwang-Teak Lee, Tae-Gon Im, Myoung-Soo Kim, Hwan-Woong Lee, Seung-Young Choi
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Patent number: 10762816Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.Type: GrantFiled: July 26, 2018Date of Patent: September 1, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Han Lee, Myeong Su Kim, Sun Koo Kang, Bo Yeon Kim, Dong Won Park, Tae Gon Im, Jung Hwan Cho
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Publication number: 20190340989Abstract: A display device includes a display panel including data lines, gate lines, and pixels connected to the data lines and the gate lines, a data driver configured to drive the data lines, a plurality of gate drivers, each configured to drive a corresponding portion of the gate lines, and a plurality of feedback lines connected to one of the data lines at a plurality of measurement positions corresponding to the plurality of gate drivers. The data driver applies a test voltage to the data line, receives the test voltage as a plurality of feedback voltages through the plurality of feedback lines, and determines gate shift amounts at the plurality of measurement positions corresponding to the plurality of gate drivers based on the plurality of feedback voltages. The gate drivers apply gate signals to the gate lines that are shifted by the determined gate shift amounts.Type: ApplicationFiled: April 29, 2019Publication date: November 7, 2019Inventors: JAE-HAN LEE, Sun-Koo Kang, Soo Yeon Kim, Tae Gon Im, Moon Shik Kang, Jung Hwan Cho
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Publication number: 20190304397Abstract: A display device includes a timing controller configured to supply a first set signal to a data control signal line in a first frequency mode, and to supply a second set signal and a data signal to the data control signal line in a second frequency mode that is different from the first frequency mode, a data driver configured to recover the data signal supplied to the data control signal line according to a signal recovery characteristic value, to generate a plurality of data voltages based on the recovered data signal, and to adjust the signal recover characteristic value based on the first set signal and the second set signal, and a display unit including a plurality of pixels that emit lights with gray scales corresponding to the plurality of data voltagesType: ApplicationFiled: February 27, 2019Publication date: October 3, 2019Inventors: Tae Gon IM, Myeong Su KIM, Bo Yeon KIM, Sun Koo KANG, Yong Bum KIM, Dong Won PARK, Jung Hwan CHO
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Publication number: 20190147831Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.Type: ApplicationFiled: July 26, 2018Publication date: May 16, 2019Inventors: Jae Han LEE, Myeong Su KIM, Sun Koo KANG, Bo Yeon KIM, Dong Won PARK, Tae Gon IM, Jung Hwan CHO
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Patent number: 9830869Abstract: A light unit includes a DC/DC converter. A plurality of unit light emitting diode columns receive a voltage applied from the DC/DC converter. A plurality of transistors, respectively, are connected to the plurality of unit light emitting diode columns. A current deviation compensating unit compensates for deviations between currents respectively flowing through the plurality of unit light emitting diode columns by a pulse current width modulation average current control method. A connection switch sequentially connects the current deviation compensating unit with the plurality of transistors. A resistor is connected to output terminals of the plurality of transistors. A switch controller controls connection between the connection switch and the current deviation compensating unit based on a signal applied to the resistor.Type: GrantFiled: October 27, 2014Date of Patent: November 28, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Gon Im, Song Yi Han, Young Sup Kwon, Eun Chul Shin
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Publication number: 20170092204Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.Type: ApplicationFiled: December 9, 2016Publication date: March 30, 2017Inventors: Seung-Wan KIM, Min-Soo CHOI, Gwang-Teak LEE, Tae-Gon IM, Myoung-Soo KIM, Hwan-Woong LEE, Seung-Young CHOI
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Patent number: 9572216Abstract: A light source apparatus includes a light source which emits light, a response improving part which generates a response improving signal based on a first dimming control signal having a first rising period, a first operation part which generate a second dimming control signal which has the first rising period based on the first dimming control signal, a second operation part which generates a third dimming control signal by performing an arithmetic operation based on the second dimming control signal and the response improving signal, the third dimming control signal having a second rising period shorter than the first rising period and a light source driver which generates a light source driving signal based on the third dimming control signal to drive the light source based on the light source driving signal.Type: GrantFiled: January 23, 2016Date of Patent: February 14, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dae-Sik Lee, Tae-Gon Im, Jin-Won Jang
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Publication number: 20170034885Abstract: A light source apparatus includes a light source which emits light, a response improving part which generates a response improving signal based on a first dimming control signal having a first rising period, a first operation part which generate a second dimming control signal which has the first rising period based on the first dimming control signal, a second operation part which generates a third dimming control signal by performing an arithmetic operation based on the second dimming control signal and the response improving signal, the third dimming control signal having a second rising period shorter than the first rising period and a light source driver which generates a light source driving signal based on the third dimming control signal to drive the light source based on the light source driving signal.Type: ApplicationFiled: January 23, 2016Publication date: February 2, 2017Inventors: Dae-sik Lee, Tae-Gon Im, Jin-Won Jang
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Patent number: 9548021Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.Type: GrantFiled: January 16, 2013Date of Patent: January 17, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung-Wan Kim, Min-Soo Choi, Gwang-Teak Lee, Tae-Gon Im, Myoung-Soo Kim, Hwan-Woong Lee, Seung-Young Choi
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Patent number: 9370066Abstract: A light emitting device includes a light emitting unit and a constant current controller. The light emitting unit includes at least one LED string. The constant current controller is connected to a cathode terminal of the LED string and controls a driving current flowing through the LED string. The constant current controller includes a transistor connected to the cathode terminal of the LED string. A switching unit and a sensing resistor are connected to the transistor. The switching unit connects and disconnects between the sensing resistor and the transistor.Type: GrantFiled: April 17, 2014Date of Patent: June 14, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Song Yi Han, Tae Gon Im
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Publication number: 20150156836Abstract: A light emitting device includes a light emitting unit and a constant current controller. The light emitting unit includes at least one LED string. The constant current controller is connected to a cathode terminal of the LED string and controls a driving current flowing through the LED string. The constant current controller includes a transistor connected to the cathode terminal of the LED string. A switching unit and a sensing resistor are connected to the transistor. The switching unit connects and disconnects between the sensing resistor and the transistor.Type: ApplicationFiled: April 17, 2014Publication date: June 4, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: SONG YI HAN, TAE GON IM
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Publication number: 20150116382Abstract: A light unit includes a DC/DC converter. A plurality of unit light emitting diode columns receive a voltage applied from the DC/DC converter. A plurality of transistors, respectively, are connected to the plurality of unit light emitting diode columns. A current deviation compensating unit compensates for deviations between currents respectively flowing through the plurality of unit light emitting diode columns by a pulse current width modulation average current control method. A connection switch sequentially connects the current deviation compensating unit with the plurality of transistors. A resistor is connected to output terminals of the plurality of transistors. A switch controller controls connection between the connection switch and the current deviation compensating unit based on a signal applied to the resistor.Type: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventors: Tae Gon IM, Song Yi HAN, Young Sup KWON, Eun Chul SHIN
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Publication number: 20130321484Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.Type: ApplicationFiled: January 16, 2013Publication date: December 5, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Seung-Wan KIM, Min-Soo CHOI, Gwang-Teak LEE, Tae-Gon IM, Myoung-Soo KIM, Hwan-Woong LEE, Seung-Young CHOI