Patents by Inventor Soo-Hee OH
Soo-Hee OH 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: 11967269Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: GrantFiled: October 4, 2022Date of Patent: April 23, 2024Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Patent number: 11900890Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.Type: GrantFiled: December 5, 2022Date of Patent: February 13, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Hwan Kim, Chul Kyu Kang, Hyun-Chol Bang, Soo Hee Oh, Dong Sun Lee
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Publication number: 20230255099Abstract: A display device includes a flexible display panel and a protective film. The protective film includes a film main body and a first adhesion portion. The film main body has a first surface contacting the flexible display panel and a first recess portion recessed from the first surface, and the first adhesion portion is in the first recess portion.Type: ApplicationFiled: April 17, 2023Publication date: August 10, 2023Inventors: Hyung-Gyu Park, Soo Hee Oh, Seong Geun Won, Hirotsugu Kishimoto
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Patent number: 11631823Abstract: A display device includes a flexible display panel and a protective film. The protective film includes a film main body and a first adhesion portion. The film main body has a first surface contacting the flexible display panel and a first recess portion recessed from the first surface, and the first adhesion portion is in the first recess portion.Type: GrantFiled: September 3, 2020Date of Patent: April 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyung-Gyu Park, Soo Hee Oh, Seong Geun Won, Hirotsugu Kishimoto
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Publication number: 20230116848Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.Type: ApplicationFiled: December 5, 2022Publication date: April 13, 2023Applicant: Samsung Display Co., Ltd.Inventors: Sung Hwan KIM, Chul Kyu KANG, Hyun-Chol BANG, Soo Hee OH, Dong Sun LEE
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Publication number: 20230022857Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: ApplicationFiled: October 4, 2022Publication date: January 26, 2023Inventors: Chul Kyu KANG, Sung Hwan KIM, Soo Hee OH, Dong Sun LEE, Sang Moo CHOI
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Publication number: 20230017548Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: ApplicationFiled: September 16, 2022Publication date: January 19, 2023Inventors: Soo Hee OH, Chul Kyu Kang, Dong Sun Lee, Sang Moo Choi
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Patent number: 11521561Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.Type: GrantFiled: August 6, 2021Date of Patent: December 6, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Hwan Kim, Chul Kyu Kang, Hyun-Chol Bang, Soo Hee Oh, Dong Sun Lee
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Patent number: 11468826Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: GrantFiled: June 4, 2021Date of Patent: October 11, 2022Assignee: Samsung Display Co., Ltd.Inventors: Chui Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Patent number: 11450281Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: GrantFiled: April 30, 2021Date of Patent: September 20, 2022Assignee: Samsung Display Co., Ltd.Inventors: Soo Hee Oh, Chui Kyu Kang, Dong Sun Lee, Sang Moo Choi
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Patent number: 11436979Abstract: A pixel circuit includes: an organic light emitting diode (OLED); a first transistor having first and second electrodes and a first gate electrode; a second transistor connected between a data line and the first electrode, controlled by a first scan line; a third transistor connected between the second electrode and the a electrode of the first transistor, controlled by the first scan line; a fourth transistor connected between the first gate electrode and a first initialization voltage line, controlled by a second scan line; a fifth transistor connected between a power line and first electrode, controlled by a first emission line; a sixth transistor connected between the second electrode and the OLED and controlled by a second emission line; and a storage capacitor connected between the first gate electrode and the power line, wherein the first emission line and the second emission line are located at different nodes.Type: GrantFiled: July 9, 2019Date of Patent: September 6, 2022Assignee: Samsung Display Co., Ltd.Inventors: Sung Hwan Kim, Sang Moo Choi, Dae Hyun Kim, Soo Hee Oh, Dong Sun Lee
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Patent number: 11195469Abstract: A stage of a scan driver for a display device, the stage includes: an output unit to output to an output terminal either a signal supplied to a first clock terminal corresponding to voltage of a first driving node or a voltage of a second power source corresponding to voltage of a second driving node; an input unit to control the voltage of the first driving node corresponding to signals supplied to a first input terminal, and the input unit to control the voltage of the second driving node corresponding to signals supplied to a second input terminal and a second clock terminal; a first signal processor including a second capacitor coupled between the second driving node and a second node, the first signal processor to control the voltage of the second driving node corresponding to signals supplied to a third clock terminal and a fourth clock terminal, the first signal processor to control a potential difference between both ends of the second capacitor corresponding to the signal supplied to the fourth clockType: GrantFiled: December 9, 2019Date of Patent: December 7, 2021Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Publication number: 20210366409Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.Type: ApplicationFiled: August 6, 2021Publication date: November 25, 2021Applicant: Samsung Display Co., Ltd.Inventors: Sung Hwan KIM, Chul Kyu KANG, Hyun-Chol BANG, Soo Hee OH, Dong Sun LEE
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Patent number: 11151948Abstract: An organic light emitting display device includes: a pixel unit including a plurality of pixels; a scan driver for sequentially supplying a scan signal to the pixels through scan lines, wherein the scan signal includes k (k is a natural number) bias pulses for applying a bias voltage and one write pulse for applying a data voltage; a data corrector for correcting a first grayscale value that is a grayscale value of a (j, i) pixel (i and j are natural numbers) among the pixels, based on a difference between the first grayscale value and a second grayscale value that is a grayscale value of a (j+2k, i) pixel among the pixels; and a data driver for supplying a data voltage corresponding to each of the grayscale values to the pixel unit through a plurality of data lines.Type: GrantFiled: June 24, 2019Date of Patent: October 19, 2021Assignee: Samsung Display Co., Ltd.Inventors: Dong Sun Lee, Sang Moo Choi, Chui Kyu Kang, Soo Hee Oh
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Patent number: 11145253Abstract: A display device includes a scan driver configured to provide a scan signal to the scan line, the scan signal having an ON voltage for turning on a transistor in a plurality of horizontal periods including a current horizontal period and at least one previous horizontal period corresponding to the scan signal, and a grayscale data processor configured to correct current grayscale data of a current pixel corresponding to the current horizontal period to generate correction grayscale data based on previous grayscale data of a previous pixel corresponding to the previous horizontal period, the current pixel included in a same pixel column as the previous pixel.Type: GrantFiled: July 9, 2019Date of Patent: October 12, 2021Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sang Moo Choi, Soo Hee Oh, Dongsun Lee
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Publication number: 20210295768Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: ApplicationFiled: June 4, 2021Publication date: September 23, 2021Inventors: Chul Kyu KANG, Sung Hwan KIM, Soo Hee OH, Dong Sun LEE, Sang Moo CHOI
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Publication number: 20210248963Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: ApplicationFiled: April 30, 2021Publication date: August 12, 2021Inventors: Soo Hee OH, Chul Kyu KANG, Dong Sun LEE, Sang Moo CHOI
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Patent number: 11087695Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.Type: GrantFiled: December 23, 2019Date of Patent: August 10, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Hwan Kim, Chul Kyu Kang, Hyun-Chol Bang, Soo Hee Oh, Dong Sun Lee
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Patent number: 11030943Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: GrantFiled: November 27, 2019Date of Patent: June 8, 2021Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Patent number: 10997922Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: GrantFiled: September 13, 2019Date of Patent: May 4, 2021Assignee: Samsung Display Co., Ltd.Inventors: Soo Hee Oh, Chul Kyu Kang, Dong Sun Lee, Sang Moo Choi