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公开(公告)号:US12101976B2
公开(公告)日:2024-09-24
申请号:US17685773
申请日:2022-03-03
Applicant: Samsung Display Co., Ltd.
Inventor: Junhyun Park , Jangmi Kang , Minjae Jeong
IPC: H10K59/131 , H10K59/126
CPC classification number: H10K59/131 , H10K59/126
Abstract: An electronic device includes a display panel including a plurality of pixels. Each of the plurality of pixels includes a light-emitting diode, a power line, an initialization voltage line, an initialization signal line, a bias voltage line, a transistor including a first gate in contact with the initialization signal line through a first contact and electrically connected between the initialization voltage line and the anode, and a transistor including a second gate in contact with the initialization signal line through a second contact and electrically connected between the power line and the bias voltage line. In a plan view, the initialization signal line does not overlap the power line.
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公开(公告)号:US11990091B2
公开(公告)日:2024-05-21
申请号:US18085779
申请日:2022-12-21
Applicant: Samsung Display Co., LTD.
Inventor: Junhyun Park , Jangmi Kang , Hyeongseok Kim , Soil Yoon , Minjae Jeong , Mukyung Jeon
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08 , G09G2320/0214 , G09G2320/0247 , G09G2330/021
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver provides a gate signal to the pixel. The data driver provides a data voltage to the pixel. The emission driver provides an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element which applies a driving current to the light emitting element, a storage capacitor connected to a control electrode of the driving switching element and a bias capacitor including a first electrode connected to the storage capacitor and a second electrode which receives a bias gate signal. A waveform of the bias gate signal varies based on an off ratio representing a ratio of an off period of the emission signal in a frame period.
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公开(公告)号:US11908396B2
公开(公告)日:2024-02-20
申请号:US18123847
申请日:2023-03-20
Applicant: Samsung Display Co., Ltd.
Inventor: Junhyun Park , Jangmi Kang , Minjae Jeong
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0426 , G09G2300/0842 , G09G2310/0267 , G09G2310/08
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to provide a gate signal to the pixel. The data driver is configured to provide a data voltage to the pixel. The emission driver is configured to provide an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element and a bias switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is configured to provide a bias voltage to an input electrode of the driving switching element. A frequency of a bias gate signal applied to a control electrode of the bias switching element is greater than a frequency of a data write gate signal applied to the pixel.
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公开(公告)号:US11756480B2
公开(公告)日:2023-09-12
申请号:US17674107
申请日:2022-02-17
Applicant: Samsung Display Co., Ltd.
Inventor: Minjae Jeong , Jangmi Kang , Hyeongseok Kim , Junhyun Park , Mukyung Jeon
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2310/0267 , G09G2310/0275 , G09G2310/061
Abstract: A pixel of a display device includes a first transistor including a top gate coupled to a first node, a first terminal, a second terminal coupled to a second node, and a bottom gate, a second transistor including a gate coupled to a writing signal line, a first terminal coupled to a data line, and a second terminal coupled to the first node, a storage capacitor coupled between the first node and the second node, a light emitting element coupled between the second node and a second power supply voltage line, and a seventh transistor including a gate coupled to an initialization signal line, a first terminal coupled to a bias voltage line, and a second terminal coupled to the bottom gate.
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公开(公告)号:US11610538B2
公开(公告)日:2023-03-21
申请号:US17540075
申请日:2021-12-01
Applicant: Samsung Display Co., Ltd.
Inventor: Junhyun Park , Jangmi Kang , Minjae Jeong
IPC: G09G3/32
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to provide a gate signal to the pixel. The data driver is configured to provide a data voltage to the pixel. The emission driver is configured to provide an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element and a bias switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is configured to provide a bias voltage to an input electrode of the driving switching element. A frequency of a bias gate signal applied to a control electrode of the bias switching element is greater than a frequency of a data write gate signal applied to the pixel.
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公开(公告)号:US11574972B2
公开(公告)日:2023-02-07
申请号:US16907793
申请日:2020-06-22
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jangmi Kang , Dongwoo Kim , Cheolgon Lee , Jaeyong Jang
IPC: H01L27/32 , H01L29/786
Abstract: A display apparatus is provided including a display area and a non-display area. The display area includes a display element and the non-display area includes a pad portion. A first thin-film transistor (TFT) is arranged in the display area. The first TFT includes silicon and a first gate electrode. A second TFT is arranged on a first insulating layer covering the first gate electrode and includes an oxide and a second gate electrode. A first voltage line extends in a first direction. A data line is spaced apart from the first voltage line. A connection wire is disposed in the display area and connects the data line to the pad portion. The connection wire includes a first portion extending in the first direction and a second portion extending in a second direction crossing the first direction, and the first portion overlaps the first voltage line.
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公开(公告)号:US20220214761A1
公开(公告)日:2022-07-07
申请号:US17704256
申请日:2022-03-25
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jangmi Kang , Jisun Kim
Abstract: A display apparatus including a sensor includes: a pixel group including a predetermined number of pixels, each of which includes a pixel circuit and a light-emitting device electrically connected to the pixel circuit; and a sensing pixel including a sensing circuit and a sensing electrode connected to the sensing circuit, where the sensing electrode forms a variable capacitor with respect to a finger, and the sensing circuit is arranged around the pixel circuit of the pixel group.
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公开(公告)号:US20200321405A1
公开(公告)日:2020-10-08
申请号:US16907842
申请日:2020-06-22
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jangmi Kang , Jisun Kim
Abstract: A display apparatus including a sensor includes: a pixel group including a predetermined number of pixels, each of which includes a pixel circuit and a light-emitting device electrically connected to the pixel circuit; and a sensing pixel including a sensing circuit and a sensing electrode connected to the sensing circuit, where the sensing electrode forms a variable capacitor with respect to a finger, and the sensing circuit is arranged around the pixel circuit of the pixel group.
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公开(公告)号:US10332466B2
公开(公告)日:2019-06-25
申请号:US15135062
申请日:2016-04-21
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Se-Hyoung Cho , Hyun Joon Kim , Cheol-Gon Lee , Jangmi Kang , Mee-Hye Jung , Jong-Hee Kim
IPC: G09G3/36 , G09G3/3275
Abstract: A method of driving a display panel includes providing a positive polarity data signal to a first data line during an odd-numbered frame, and providing a negative polarity data signal to the first data line during an even-numbered frame. The positive polarity data signal has a first polarity. The negative polarity data signal has a second polarity. Output timing of the positive polarity data signal is different from output timing of the negative polarity data signal.
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公开(公告)号:US20190035859A1
公开(公告)日:2019-01-31
申请号:US15882417
申请日:2018-01-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jangmi Kang , Jisun Kim
CPC classification number: H01L27/323 , G06F3/0412 , G06F3/044 , G06F2203/04107 , G06K9/0002 , G06K9/0004 , H01L27/3216 , H01L27/3218 , H01L27/3234 , H01L27/3272 , H01L27/3276 , H01L51/5225 , H01L51/5284
Abstract: A display apparatus including a sensor includes: a pixel group including a predetermined number of pixels, each of which includes a pixel circuit and a light-emitting device electrically connected to the pixel circuit; and a sensing pixel including a sensing circuit and a sensing electrode connected to the sensing circuit, where the sensing electrode forms a variable capacitor with respect to a finger, and the sensing circuit is arranged around the pixel circuit of the pixel group.
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