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公开(公告)号：US11631374B2
公开(公告)日：2023-04-18
申请号：US17874680
申请日：2022-07-27
Inventor： Jeonkyoo Kim , Soo Yeon Lee , Manseung Cho , Kyeong Soo Kang , Junhee Moon , Bonghyun You , Jin Kyu Lee
IPC: G09G3/3291 , G09G3/3266
Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.
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公开(公告)号：US20160240802A1
公开(公告)日：2016-08-18
申请号：US14990017
申请日：2016-01-07
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Soo Yeon Lee
CPC classification number: H01L51/0097 , H01L27/3213 , H01L27/3218 , H01L27/3241 , H01L27/326 , H01L27/3276 , H01L2251/5338 , Y02E10/549 , Y02P70/521
Abstract: A stretchable display device includes a stretchable substrate capable of being expanded or contracted in a first direction and pixel portions on the stretchable substrate. The pixel portions include rigid areas provided with a light emitter to selectively emit light depending on a driving signal and elastic areas surrounding the rigid areas. The pixel portions are continuously adjacent to each other in the first direction to form a plurality of pixel lines. The pixel portions included in a first pixel line and a second pixel line that are adjacent in the second direction are arranged in a zigzag form along the first direction.
Abstract translation: 可拉伸显示装置包括能够沿第一方向膨胀或收缩的伸缩性基板和伸缩性基板上的像素部分。 像素部分包括设置有光发射器的刚性区域，以根据驱动信号和围绕刚性区域的弹性区域选择性地发光。 像素部分在第一方向上彼此连续地相邻以形成多个像素线。 包括在第二方向上相邻的第一像素线和第二像素线中的像素部分沿着第一方向排列成Z字形。
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公开(公告)号：US11282463B2
公开(公告)日：2022-03-22
申请号：US16744009
申请日：2020-01-15
Applicant: Samsung Display Co., Ltd.
Inventor： Jong Hee Kim , Soo Yeon Lee
IPC: G09G3/32 , G09G3/3266 , G09G3/36
Abstract: A scan driver for a display device includes a plurality of scan stage groups, each of the scan stage groups including a first scan stage and a second scan stage. The first scan stage includes: a first transistor including a gate electrode coupled to a first Q node, one electrode coupled to a first scan clock line, and another electrode coupled to a first scan line; a second transistor including a gate electrode and one electrode, which are coupled to a first scan carry line, and another electrode coupled to the first Q node; a third transistor including a gate electrode coupled to a first control line and one electrode coupled to a first sensing carry line; a fourth transistor including a gate electrode coupled to the other electrode of the third transistor, one electrode coupled to a second control line, and another electrode coupled to a first node; a first capacitor including one electrode coupled to the one electrode of the fourth transistor and another electrode coupled to the gate electrode of the fourth transistor; a fifth transistor including a gate electrode coupled to a third control line, one electrode coupled to the first node, and another electrode coupled to the first Q node; and a sixth transistor including a gate electrode coupled to the first Q node, one electrode coupled to the second control line, and another electrode coupled to the first node.
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公开(公告)号：US20220406259A1
公开(公告)日：2022-12-22
申请号：US17576180
申请日：2022-01-14
Inventor： Sangik Lee , Kyeong Soo Kang , Joon-Chul Goh , Soo Yeon Lee
IPC: G09G3/3266 , G09G3/3275
Abstract: A display device includes a display panel, a scan driver, a data driver, a sensing circuit, and a controller configured to select a pixel row from a plurality of pixel rows in a vertical blank period of each frame period. The vertical blank period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of each pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller predicts a current saturated source voltage of the driving transistor based on the first and second source voltages, and determines a threshold voltage change amount of the driving transistor based on a difference between a previous saturated source voltage and the current saturated source voltage.
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公开(公告)号：US11776482B2
公开(公告)日：2023-10-03
申请号：US17699943
申请日：2022-03-21
Applicant: Samsung Display Co., Ltd.
Inventor： Jong Hee Kim , Soo Yeon Lee
IPC: G09G3/32 , G09G3/3266 , G09G3/36
CPC classification number: G09G3/3266 , G09G3/3677 , G09G2310/08
Abstract: A scan driver for a display device includes a plurality of scan stage groups, each of the scan stage groups including a first scan stage and a second scan stage. The first scan stage includes: a first transistor including a gate electrode coupled to a first Q node, one electrode coupled to a first scan clock line, and another electrode coupled to a first scan line; a second transistor including a gate electrode and one electrode, which are coupled to a first scan carry line, and another electrode coupled to the first Q node; a third transistor including a gate electrode coupled to a first control line and one electrode coupled to a first sensing carry line; a fourth transistor including a gate electrode coupled to the other electrode of the third transistor, one electrode coupled to a second control line, and another electrode coupled to a first node; a first capacitor including one electrode coupled to the one electrode of the fourth transistor and another electrode coupled to the gate electrode of the fourth transistor; a fifth transistor including a gate electrode coupled to a third control line, one electrode coupled to the first node, and another electrode coupled to the first Q node; and a sixth transistor including a gate electrode coupled to the first Q node, one electrode coupled to the second control line, and another electrode coupled to the first node.
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Patent Agency Ranking
公开(公告)号：US11610551B2
公开(公告)日：2023-03-21
申请号：US17576180
申请日：2022-01-14
Inventor： Sangik Lee , Kyeong Soo Kang , Joon-Chul Goh , Soo Yeon Lee
IPC: G09G3/3266 , G09G3/3275
Abstract: A display device includes a display panel, a scan driver, a data driver, a sensing circuit, and a controller configured to select a pixel row from a plurality of pixel rows in a vertical blank period of each frame period. The vertical blank period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of each pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller predicts a current saturated source voltage of the driving transistor based on the first and second source voltages, and determines a threshold voltage change amount of the driving transistor based on a difference between a previous saturated source voltage and the current saturated source voltage.
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公开(公告)号：US09691996B2
公开(公告)日：2017-06-27
申请号：US14990017
申请日：2016-01-07
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Soo Yeon Lee
CPC classification number: H01L51/0097 , H01L27/3213 , H01L27/3218 , H01L27/3241 , H01L27/326 , H01L27/3276 , H01L2251/5338 , Y02E10/549 , Y02P70/521
Abstract: A stretchable display device includes a stretchable substrate capable of being expanded or contracted in a first direction and pixel portions on the stretchable substrate. The pixel portions include rigid areas provided with a light emitter to selectively emit light depending on a driving signal and elastic areas surrounding the rigid areas. The pixel portions are continuously adjacent to each other in the first direction to form a plurality of pixel lines. The pixel portions included in a first pixel line and a second pixel line that are adjacent in the second direction are arranged in a zigzag form along the first direction.
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公开(公告)号：US11955092B2
公开(公告)日：2024-04-09
申请号：US18135152
申请日：2023-04-15
Inventor： Jeonkyoo Kim , Soo Yeon Lee , Manseung Cho , Kyeong Soo Kang , Junhee Moon , Bonghyun You , Jin Kyu Lee
IPC: G09G3/3291 , G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3291 , G09G3/3266 , G09G2310/08
Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.
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公开(公告)号：US11823626B2
公开(公告)日：2023-11-21
申请号：US17699943
申请日：2022-03-21
Applicant: Samsung Display Co., Ltd.
Inventor： Jong Hee Kim , Soo Yeon Lee
IPC: G09G3/32 , G09G3/3266 , G09G3/36
CPC classification number: G09G3/3266 , G09G3/3677 , G09G2310/08
Abstract: A scan driver for a display device includes a plurality of scan stage groups, each of the scan stage groups including a first scan stage and a second scan stage. The first scan stage includes: a first transistor including a gate electrode coupled to a first Q node, one electrode coupled to a first scan clock line, and another electrode coupled to a first scan line; a second transistor including a gate electrode and one electrode, which are coupled to a first scan carry line, and another electrode coupled to the first Q node; a third transistor including a gate electrode coupled to a first control line and one electrode coupled to a first sensing carry line; a fourth transistor including a gate electrode coupled to the other electrode of the third transistor, one electrode coupled to a second control line, and another electrode coupled to a first node; a first capacitor including one electrode coupled to the one electrode of the fourth transistor and another electrode coupled to the gate electrode of the fourth transistor; a fifth transistor including a gate electrode coupled to a third control line, one electrode coupled to the first node, and another electrode coupled to the first Q node; and a sixth transistor including a gate electrode coupled to the first Q node, one electrode coupled to the second control line, and another electrode coupled to the first node.
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公开(公告)号：US11430394B2
公开(公告)日：2022-08-30
申请号：US17346655
申请日：2021-06-14
Inventor： Jeonkyoo Kim , Soo Yeon Lee , Manseung Cho , Kyeong Soo Kang , Junhee Moon , Bonghyun You , Jin Kyu Lee
IPC: G09G3/3291 , G09G3/3266 , G09G3/3233
Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.
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