Patents by Inventor Young Ha SOHN
Young Ha SOHN 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: 20240105104Abstract: A pixel includes: a light emitting element; a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and a bias control transistor configured to be controlled in operating timing thereof by a bias control signal, and configured to switch electrical connection between the second node and a bias power line for transmitting a bias voltage. In one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.Type: ApplicationFiled: April 12, 2023Publication date: March 28, 2024Inventors: Se Hyuk PARK, Hong Soo KIM, Young Ha SOHN, Jin Wook YANG, Dong Gyu LEE, Jae Hyeon JEON
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Publication number: 20240096265Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.Type: ApplicationFiled: April 12, 2023Publication date: March 21, 2024Inventors: Young Ha SOHN, Se Hyuk PARK, Jin Wook YANG, Dong Gyu LEE, Jae Hyeon JEON
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Patent number: 11922866Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.Type: GrantFiled: April 12, 2023Date of Patent: March 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young Ha Sohn, Se Hyuk Park, Jin Wook Yang, Dong Gyu Lee, Jae Hyeon Jeon
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Publication number: 20240054957Abstract: A display device includes: a data driver for supplying a data signal to each of a plurality of data lines; and a pixel unit including a plurality of sub-pixels. The pixel unit further includes one dummy data line disposed separate from a data line of a first column among the data lines. The data line of the first column is connected to sub-pixels disposed on odd-numbered pixel rows among sub-pixels disposed on a first pixel column, and is connected to sub-pixels disposed on even-numbered pixel rows among sub-pixels disposed on a third pixel column. The dummy data line is connected to sub-pixels disposed on the even-numbered pixel rows among the sub-pixels disposed on the first pixel column.Type: ApplicationFiled: October 20, 2023Publication date: February 15, 2024Inventors: Se Hyuk PARK, Jin Young ROH, Woo Mi BAE, Hae Kwan SEO, Young Ha SOHN, Jin Wook YANG
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Patent number: 11798478Abstract: A display device includes: a data driver for supplying a data signal to each of a plurality of data lines; and a pixel unit including a plurality of sub-pixels. The pixel unit further includes one dummy data line disposed separate from a data line of a first column among the data lines. The data line of the first column is connected to sub-pixels disposed on odd-numbered pixel rows among sub-pixels disposed on a first pixel column, and is connected to sub-pixels disposed on even-numbered pixel rows among sub-pixels disposed on a third pixel column. The dummy data line is connected to sub-pixels disposed on the even-numbered pixel rows among the sub-pixels disposed on the first pixel column.Type: GrantFiled: June 14, 2022Date of Patent: October 24, 2023Assignee: Samsung Display Co., Ltd.Inventors: Se Hyuk Park, Jin Young Roh, Woo Mi Bae, Hae Kwan Seo, Young Ha Sohn, Jin Wook Yang
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Publication number: 20230290313Abstract: A display device includes a display panel including a first pixel column in which first and third color pixels are alternately disposed, a second pixel column in which second color pixels are disposed, a third pixel column in which the third and first color pixels are alternately disposed, and a fourth pixel column in which the second color pixels are disposed. The display device further includes a scan driver applying a scan signal to scan lines, a data driver including a first source channel supplying a first color data signal and a second color data signal to a first data line, and a second source channel supplying the second color data signal and a third color data signal to a second data line, and a demultiplexer successively selecting the first and second sub-data lines during a period in which the scan signal is supplied to each scan line.Type: ApplicationFiled: December 22, 2022Publication date: September 14, 2023Inventors: Hae Kwan Seo, Jin Young Roh, Young Ha Sohn, Jin Wook Yang
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Patent number: 11715406Abstract: A display device includes: a data driver for supplying a data signal to output lines; a demultiplexer connected to each of the output lines, the demultiplexer to supply the data signal supplied to each output line to a first data line and a second data line; first pixels disposed in a (2j?1)-th column and a (2k?1)-th row, the first pixels being connected to the first data line, wherein j and k are positive integers; second pixels disposed in the (2j?1)-th column and a (2k)-th row, the second pixels being connected to the second data line; third pixels disposed in a (2j)-th column and the (2k?1)-th row, the third pixels being connected to the first data line; and fourth pixels disposed in the (2j)-th column and the (2k)-th row, the fourth pixels being connected to the second data line.Type: GrantFiled: March 28, 2022Date of Patent: August 1, 2023Assignee: Samsung Display Co., Ltd.Inventors: Se Hyuk Park, Jin Young Roh, Woo Mi Bae, Hae Kwan Seo, Young Ha Sohn, Jin Wook Yang
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Patent number: 11651728Abstract: A pixel includes a light emitting element, a first transistor including a gate electrode electrically connected to a first node, a second transistor including a gate electrode connected to a first scan line, a third transistor including a gate electrode connected to the first scan line, a fourth transistor including a gate electrode connected to a second scan line, a fifth transistor including a gate electrode electrically connected to a third scan line, an sixth transistor including a gate electrode electrically connected to the third scan line, a resistor electrically connected in parallel with the sixth transistor between the second node and the anode of the light emitting element, and an amplifier having a non-inverting terminal and an inverting terminal electrically connected to ends of the resistor, respectively.Type: GrantFiled: April 20, 2022Date of Patent: May 16, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young Ha Sohn, Se Hyuk Park, Hae Kwan Seo, Jin Wook Yang
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Patent number: 11640810Abstract: A display apparatus includes an optical module, a display panel and a display panel driver. The display panel is disposed on the optical module. The display panel driver is configured to drive the display panel. The display panel includes a first display area including at least a portion overlapping with the optical module and a second display area not overlapping with the optical module in a plan view. The first display area includes pixels having a first pixel structure. The second display area includes pixels having a second pixel structure different from the first pixel structure.Type: GrantFiled: January 6, 2021Date of Patent: May 2, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Hye Kim, Young Ha Sohn, Jin-Wook Yang, Dong Gyu Lee, Jae-Hyeon Jeon
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Patent number: 11640794Abstract: A display device includes a first transistor including a first electrode connected to a first power line, a second electrode connected to a third node, and a gate electrode connected to a first node, a first capacitor formed between the first power line and a second node, a second capacitor formed between the first node and the second node, an emission transistor including a first electrode connected to the third node, a second electrode, and a gate electrode connected to an emission control line, and a light emitting element connected to the second electrode of the emission transistor and a second power line.Type: GrantFiled: February 25, 2022Date of Patent: May 2, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Wook Yang, Ji Hye Kim, Young Ha Sohn, Dong Gyu Lee, Jae Hyeon Jeon
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Publication number: 20230089661Abstract: A pixel includes a light emitting element, a first transistor including a gate electrode electrically connected to a first node, a second transistor including a gate electrode connected to a first scan line, a third transistor including a gate electrode connected to the first scan line, a fourth transistor including a gate electrode connected to a second scan line, a fifth transistor including a gate electrode electrically connected to a third scan line, an sixth transistor including a gate electrode electrically connected to the third scan line, a resistor electrically connected in parallel with the sixth transistor between the second node and the anode of the light emitting element, and an amplifier having a non-inverting terminal and an inverting terminal electrically connected to ends of the resistor, respectively.Type: ApplicationFiled: April 20, 2022Publication date: March 23, 2023Applicant: Samsung Display Co., LTD.Inventors: Young Ha SOHN, Se Hyuk PARK, Hae Kwan SEO, Jin Wook YANG
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Publication number: 20230018362Abstract: A display device includes: a data driver for supplying a data signal to output lines; a demultiplexer connected to each of the output lines, the demultiplexer to supply the data signal supplied to each output line to a first data line and a second data line; first pixels disposed in a (2j?1)-th column and a (2k?1)-th row, the first pixels being connected to the first data line, wherein j and k are positive integers; second pixels disposed in the (2j?1)-th column and a (2k)-th row, the second pixels being connected to the second data line; third pixels disposed in a (2j)-th column and the (2k?1)-th row, the third pixels being connected to the first data line; and fourth pixels disposed in the (2j)-th column and the (2k)-th row, the fourth pixels being connected to the second data line.Type: ApplicationFiled: March 28, 2022Publication date: January 19, 2023Inventors: Se Hyuk Park, Jin Young Roh, Woo Mi Bae, Hae Kwan Seo, Young Ha Sohn, Jin Wook Yang
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Publication number: 20220415258Abstract: A display device includes: a data driver for supplying a data signal to each of a plurality of data lines; and a pixel unit including a plurality of sub-pixels. The pixel unit further includes one dummy data line disposed separate from a data line of a first column among the data lines. The data line of the first column is connected to sub-pixels disposed on odd-numbered pixel rows among sub-pixels disposed on a first pixel column, and is connected to sub-pixels disposed on even-numbered pixel rows among sub-pixels disposed on a third pixel column. The dummy data line is connected to sub-pixels disposed on the even-numbered pixel rows among the sub-pixels disposed on the first pixel column.Type: ApplicationFiled: June 14, 2022Publication date: December 29, 2022Inventors: Se Hyuk PARK, Jin Young ROH, Woo Mi BAE, Hae Kwan SEO, Young Ha SOHN, Jin Wook YANG
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Patent number: 11482174Abstract: An embodiment provides a display device including: a light emitting diode; a driving transistor configured to supply a current to the light emitting diode; a switching transistor having an input electrode connected to a data line; and a voltage transmitting capacitor disposed between an output electrode of the switching transistor and a gate electrode of the driving transistor, wherein a data voltage applied to the data line may be transmitted to the gate electrode of the driving transistor through the voltage transmitting capacitor, and the data voltage may have a data voltage value from which a voltage variation variable is removed based on leakage of the switching transistor.Type: GrantFiled: June 16, 2020Date of Patent: October 25, 2022Inventors: Yu-Chol Kim, Jin-Wook Yang, Ji Hye Kim, Young Ha Sohn, Jae-Hyeon Jeon
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Patent number: 11462156Abstract: The present disclosure relates to a display device and a method of driving the same. The display device includes a substrate, a display panel including a first display area including first pixels, a second display area including second pixels, and a third display area disposed between the first and second display areas and including third pixels, and a component disposed between the substrate and the display panel so as to overlap the second display area. Transmittance of the second display area is higher than transmittance of the first display area and transmittance of the third display area, and the third pixels are controlled such that a luminance gradually changes according to a distance from the second display area.Type: GrantFiled: August 24, 2020Date of Patent: October 4, 2022Inventors: Jin Wook Yang, Yu Chol Kim, Ji Hye Kim, Young Ha Sohn, Jae Hyeon Jeon
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Publication number: 20220180813Abstract: A display device includes a first transistor including a first electrode connected to a first power line, a second electrode connected to a third node, and a gate electrode connected to a first node, a first capacitor formed between the first power line and a second node, a second capacitor formed between the first node and the second node, an emission transistor including a first electrode connected to the third node, a second electrode, and a gate electrode connected to an emission control line, and a light emitting element connected to the second electrode of the emission transistor and a second power line.Type: ApplicationFiled: February 25, 2022Publication date: June 9, 2022Inventors: JIN WOOK YANG, JI HYE KIM, YOUNG HA SOHN, DONG GYU LEE, JAE HYEON JEON
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Patent number: 11341889Abstract: A display device includes a pixel unit including first and second pixel columns arranged alternately along a first direction, and a third pixel column arranged between the first and the second pixel columns, a timing controller generating first or second image data by converting input image data, and a data driver generating a data voltage corresponding to the first or second image data and supplying the data voltage to the pixel unit. The first and second pixel columns each include first and second color pixels arranged alternately along a second direction, the third pixel column includes a third color pixel arranged along the second direction, and the timing controller compares a difference value between a grayscale value of the first color pixel and a grayscale value of the second color pixel with a reference value, and generates the second image data based on a comparing result.Type: GrantFiled: March 10, 2021Date of Patent: May 24, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hae Kwan Seo, Woo Mi Bae, Young Ha Sohn
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Publication number: 20220068727Abstract: A method of testing a display panel includes applying a test voltage to each of data lines; applying a gate signal to each of the gate lines; measuring a sensing voltage applied to end of the light emitting unit of each of the pixels by the pixel circuit in response to the gate signal and the test voltage; and determining whether the light emitting elements are validly connected in series within the light emitting unit of each of the pixels based on the sensing voltage.Type: ApplicationFiled: June 8, 2021Publication date: March 3, 2022Applicant: Samsung Display Co., LTD.Inventors: Hae Kwan SEO, Young Ha SOHN, Woo Mi BAE
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Patent number: 11263976Abstract: A display device includes a first transistor including a first electrode connected to a first power line, a second electrode connected to a third node, and a gate electrode connected to a first node, a first capacitor formed between the first power line and a second node, a second capacitor formed between the first node and the second node, an emission transistor including a first electrode connected to the third node, a second electrode, and a gate electrode connected to an emission control line, and a light emitting element connected to the second electrode of the emission transistor and a second power line.Type: GrantFiled: September 22, 2020Date of Patent: March 1, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Wook Yang, Ji Hye Kim, Young Ha Sohn, Dong Gyu Lee, Jae Hyeon Jeon
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Publication number: 20210407364Abstract: A display device includes a pixel unit including first and second pixel columns arranged alternately along a first direction, and a third pixel column arranged between the first and the second pixel columns, a timing controller generating first or second image data by converting input image data, and a data driver generating a data voltage corresponding to the first or second image data and supplying the data voltage to the pixel unit. The first and second pixel columns each include first and second color pixels arranged alternately along a second direction, the third pixel column includes a third color pixel arranged along the second direction, and the timing controller compares a difference value between a grayscale value of the first color pixel and a grayscale value of the second color pixel with a reference value, and generates the second image data based on a comparing result.Type: ApplicationFiled: March 10, 2021Publication date: December 30, 2021Inventors: Hae Kwan SEO, Woo Mi BAE, Young Ha SOHN