Patents by Inventor EUN SIL YUN
EUN SIL YUN 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: 11928998Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.Type: GrantFiled: February 13, 2023Date of Patent: March 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Eun Sil Yun, Changnoh Yoon
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Patent number: 11869400Abstract: A display apparatus is disclosed that comprises a display panel. The display panel includes a display region that includes a first display area and a second display area. A data driver is configured to provide a data voltage to the display region. A gate driver is configured to provide a compensation gate signal and an initialization gate signal to the display region. The gate driver includes a first stage and a second stage. A driving controller is configured to control the gate driver and the data driver. The driving controller is configured to determine a first driving frequency for the first display area and a second driving frequency for the second display area. The second stage is configured to provide the compensation gate signal having a pulse duration shorter than a pulse duration of the compensation gate signal provided to the display region by the first stage.Type: GrantFiled: December 30, 2021Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Eun Sil Yun, Changnoh Yoon
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Patent number: 11869445Abstract: A display device includes a display panel, a data driver, a scan driver, and a driving controller. The display panel includes a first display area and a second display area, which operate at different frequencies from each other in a multi-frequency mode. The driving controller controls the data driver and the scan driver. The driving controller generates boundary compensation data by compensating for boundary image signals, which are input to correspond to a boundary area of the first display area in the multi-frequency mode and drives the data driver based on a compensation image signal including the boundary compensation data.Type: GrantFiled: July 14, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Changnoh Yoon, Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Eun Sil Yun
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Publication number: 20240005868Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.Type: ApplicationFiled: September 15, 2023Publication date: January 4, 2024Inventors: SOON-DONG KIM, TAEHOON KIM, JIN-WOOK YANG, EUN SIL YUN, CHANGNOH YOON
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Patent number: 11862096Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.Type: GrantFiled: July 13, 2022Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Soon-Dong Kim, Taehoon Kim, Jin-Wook Yang, Eun Sil Yun, Changnoh Yoon
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Patent number: 11854470Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.Type: GrantFiled: November 8, 2022Date of Patent: December 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taehoon Kim, Sangan Kwon, Soon-Dong Kim, Hui Nam, Eun Sil Yun, Changnoh Yoon
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Publication number: 20230395017Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Inventors: TAEHOON KIM, SANGAN KWON, SOON-DONG KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Patent number: 11790858Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.Type: GrantFiled: November 28, 2022Date of Patent: October 17, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Junhee Moon, Eun Sil Yun, Changnoh Yoon
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Publication number: 20230196959Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Inventors: SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20230186833Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.Type: ApplicationFiled: November 8, 2022Publication date: June 15, 2023Inventors: TAEHOON KIM, SANGAN KWON, SOON-DONG KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20230104904Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.Type: ApplicationFiled: July 13, 2022Publication date: April 6, 2023Inventors: SOON-DONG KIM, TAEHOON KIM, JIN-WOOK YANG, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20230086572Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.Type: ApplicationFiled: November 28, 2022Publication date: March 23, 2023Inventors: Sangan KWON, Sonn-Dong KIM, Taehoon KIM, Hui NAM, Junhee MOON, Eun Sil YUN, Changnoh YOON
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Publication number: 20230073348Abstract: A display device includes a display panel, a data driver, a scan driver, and a driving controller. The display panel includes a first display area and a second display area, which operate at different frequencies from each other in a multi-frequency mode. The driving controller controls the data driver and the scan driver. The driving controller generates boundary compensation data by compensating for boundary image signals, which are input to correspond to a boundary area of the first display area in the multi-frequency mode and drives the data driver based on a compensation image signal including the boundary compensation data.Type: ApplicationFiled: July 14, 2022Publication date: March 9, 2023Inventors: CHANGNOH YOON, SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, EUN SIL YUN
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Patent number: 11580886Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.Type: GrantFiled: March 16, 2021Date of Patent: February 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Eun Sil Yun, Changnoh Yoon
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Publication number: 20230026979Abstract: A display device includes: a display panel including pixels, a data driving circuit, a scan driving circuit which drives a plurality of first scan lines and a plurality of second scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit to drive a first display area of the display panel at a first operating frequency and drive a second display area of the display panel at a second operating frequency lower than the first operating frequency while an operating mode is a multi-frequency mode. During the multi-frequency mode, first scan signals provided to first scan lines, which correspond to the second display area, of the plurality of first scan lines are maintained at inactive levels in predetermined frames, and second scan signals provided to the plurality of second scan lines transition to active levels at least twice in each of the predetermined frames.Type: ApplicationFiled: April 13, 2022Publication date: January 26, 2023Inventors: SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, EUN SIL YUN, CHANGNOH YOON
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Patent number: 11514866Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.Type: GrantFiled: June 25, 2021Date of Patent: November 29, 2022Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Junhee Moon, Eun Sil Yun, Changnoh Yoon
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Patent number: 11501682Abstract: A flexible display apparatus includes a first body portion, a second body portion and a driving controller. The first body portion includes a first display area, and the second body portion includes a second display area. The second display area is connected to the first display area. The driving controller is configured to determine a first driving frequency of the first display area and a second driving frequency of the second display area based on a folded angle between the first body portion and the second body portion along a folded line disposed between the first body portion and the second body portion.Type: GrantFiled: May 14, 2021Date of Patent: November 15, 2022Inventors: Eun Sil Yun, Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Changnoh Yoon
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Publication number: 20220351659Abstract: A display apparatus is disclosed that comprises a display panel. The display panel includes a display region that includes a first display area and a second display area. A data driver is configured to provide a data voltage to the display region. A gate driver is configured to provide a compensation gate signal and an initialization gate signal to the display region. The gate driver includes a first stage and a second stage. A driving controller is configured to control the gate driver and the data driver. The driving controller is configured to determine a first driving frequency for the first display area and a second driving frequency for the second display area. The second stage is configured to provide the compensation gate signal having a pulse duration shorter than a pulse duration of the compensation gate signal provided to the display region by the first stage.Type: ApplicationFiled: December 30, 2021Publication date: November 3, 2022Inventors: SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, EUN SIL YUN, CHANGNOH YOON
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Patent number: 11423846Abstract: A display device includes a display panel, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the display panel is divided into a first display region and a second display region during a multi-frequency mode and the first display region and the second display region are respectively operated at different frequencies, where the driving controller changes an operation mode to a normal mode when a still image and a moving image are simultaneously displayed in the first display region during the multi-frequency mode and the duration of the still image reaches a predetermined time.Type: GrantFiled: April 26, 2021Date of Patent: August 23, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Changnoh Yoon, Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Eun Sil Yun, Seungjae Lee
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Patent number: 11380249Abstract: Provided is a display device including a display panel, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to determine an operation mode based on an input signal, and configured to control the data driving circuit and the scan driving circuit in order to drive a first display region of the display panel at a first driving frequency and drive a second display region of the display panel at a second driving frequency while the operation mode is a multi-frequency mode, wherein the driving controller may change the operation mode to a compensation mode in which the second display region is periodically driven at the first driving frequency when the duration of the multi-frequency mode is greater than a reference time.Type: GrantFiled: April 13, 2021Date of Patent: July 5, 2022Inventors: Eun Sil Yun, Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Bonghyun You, Changnoh Yoon