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公开(公告)号:US20200073040A1
公开(公告)日:2020-03-05
申请号:US16542365
申请日:2019-08-16
Applicant: Samsung Display Co., Ltd.
Inventor: Seongyeon LEE , Taewoo Lim , Dongwoo Kim , Minsu Kim , Cheonjae Maeng , Keunwoo Park , Hongbeom Lee
IPC: F21V8/00
Abstract: A light source member including a guide panel, a light source disposed adjacent to at least one side of the guide panel, a low refractive layer disposed on the guide panel, and a color converting layer disposed on the low refractive layer and including a base resin and a quantum dot dispersed in the base resin, in which the low refractive layer includes a matrix part, a plurality of low refractive substances dispersed in the matrix part, and a void disposed in the matrix part, and an area occupied by the void is less than about 20% of an entire area of the low refractive layer.
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公开(公告)号:US10482817B2
公开(公告)日:2019-11-19
申请号:US15798812
申请日:2017-10-31
Applicant: Samsung Display Co., Ltd.
Inventor: Keunwoo Kim , Sooyoung Park , Joonghyun Park , Dongwoo Kim , Kyoung-Ju Shin
IPC: G09G3/36 , G09G3/3233 , G09G3/3283 , H05B33/08
Abstract: A display device includes pixels configured to emit light of various intensity in accordance with driving signals, data lines, scan lines, and a power supply unit configured to supply at least one driving voltage to the pixels. At least one of the pixels may comprise a switching transistor having a first electrode connected to one of the data lines and a second electrode connected to a first node, and a gate electrode connected to one of the scan lines, a driving transistor connected between the power supply unit and an organic light emitting diode, a storage capacitor having a first terminal connected to the first node and a second terminal connected to a gate electrode of the driving transistor, and a first transistor connected between the first node and a first electrode of the driving transistor.
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公开(公告)号:US09786243B2
公开(公告)日:2017-10-10
申请号:US14936434
申请日:2015-11-09
Applicant: Samsung Display Co., Ltd.
Inventor: Sehyoung Cho , Kyung-hoon Kim , Dongwoo Kim , Ilgon Kim , Kangmoon Jo
IPC: H03K17/687 , G09G3/36
CPC classification number: G09G3/3677 , G09G3/3614 , G09G3/3696 , G09G2310/0251 , G09G2310/08
Abstract: A gate driving circuit includes a plurality of stages for providing gate signals, wherein a k-th stage (k is a natural number greater than 3) includes a first output transistor including a control electrode connected to a first node, an input electrode for receiving a clock signal, and an output electrode for outputting a k-th gate signal, a second output transistor including a control electrode connected to the first node, an input electrode for receiving the clock signal, and an output electrode for outputting a k-th carry signal, a pull-down unit connected to a discharge node to pull down the output electrode of the first output transistor in response to a signal of the discharge node, and a discharge unit configured to output a (k−1)-th carry signal output from a (k−1)-th stage to the discharge node in response to a (k+1)-th carry signal output from a (k+1)-th stage.
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公开(公告)号:US09734785B2
公开(公告)日:2017-08-15
申请号:US14821329
申请日:2015-08-07
Applicant: Samsung Display Co., LTD.
Inventor: Sehyoung Cho , Kyung-hoon Kim , Dongwoo Kim , Ilgon Kim , Meehye Jung , Kangmoon Jo
IPC: G09G3/36 , G09G3/3266 , H03K17/56
CPC classification number: G09G3/3677 , G09G3/3266 , G09G2300/0413 , G09G2300/0426 , G09G2310/0267 , G09G2310/0286 , G09G2330/08 , H03K17/56
Abstract: Provided is a gate driving unit including: a plurality of stages configured to be activated sequentially so as to generate gate signals; and a plurality of repair blocks having sizes smaller than the corresponding stages and configured to repair defects of the stages. Each of the repair blocks is disposed proximate to two or more stages so as to be configured to repair defects in the two or more stages.
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公开(公告)号:US12112704B2
公开(公告)日:2024-10-08
申请号:US18501031
申请日:2023-11-03
Applicant: Samsung Display Co., Ltd.
Inventor: Yeonkyung Kim , Kwihyun Kim , Dongwoo Kim
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/08 , G09G2320/045 , G09G2330/021
Abstract: A pixel circuit is disclosed that includes first through sixth transistors, first and second capacitors, and a light emitting element. A gate electrode of the second transistor receives a first gate signal. A gate electrode of the third transistor receive a second gate signal. Gate electrodes of each of the fourth and fifth transistors receive a third gate signal. A gate electrode of the sixth transistor receives an emission signal. First electrodes of the first transistor and the first capacitor each receive a first power supply voltage. A cathode electrode of the light emitting element receives a second power supply voltage. A first electrode of the fourth transistor receives an initialization voltage.
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公开(公告)号:US11749198B2
公开(公告)日:2023-09-05
申请号:US18045761
申请日:2022-10-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Dongwoo Kim , Sunghwan Kim , Kyoungju Shin , Cheol-Gon Lee , Sang-Uk Lim
IPC: G09G3/3233 , G09G3/3266 , G09G3/3283 , H01L27/12 , G01N11/02 , G01N27/416 , G01N33/18 , H10K59/131 , H10K59/121 , H01L29/786
CPC classification number: G09G3/3233 , G01N11/02 , G01N27/4161 , G01N27/4166 , G01N33/18 , G09G3/3266 , G09G3/3283 , H01L27/1222 , H10K59/1216 , H10K59/131 , G09G2300/0426 , G09G2300/0819 , G09G2300/0823 , G09G2300/0852 , G09G2300/0861 , G09G2320/0214 , G09G2320/0219 , G09G2320/0238 , H01L27/124 , H01L27/1225 , H01L27/1255 , H01L29/7869 , H01L29/78675 , H10K59/1213
Abstract: An organic light emitting display device includes a plurality of pixels. Each of the pixels includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor. The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.
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公开(公告)号:US20220101792A1
公开(公告)日:2022-03-31
申请号:US17547560
申请日:2021-12-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Junhyun Park , Dongwoo Kim , Sungjae Moon , Kangmoon Jo
IPC: G09G3/3233 , G09G3/3275 , G09G3/3266 , G09G3/20 , G09G3/36
Abstract: A display apparatus includes a first transistor including a semiconductor layer, a first electrode and a second electrode, the first electrode and the second electrode respectively electrically connected to a source area and a drain area of the semiconductor layer, and a first gate electrode and a second gate electrode corresponding to a channel area of the semiconductor layer and facing each other, and a capacitor including a first capacitor electrode, a second capacitor electrode above the first capacitor electrode, and a third capacitor electrode below the first capacitor electrode.
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公开(公告)号:US11227545B2
公开(公告)日:2022-01-18
申请号:US16589718
申请日:2019-10-01
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Junhyun Park , Dongwoo Kim , Sungjae Moon , Kangmoon Jo
IPC: G06F3/038 , G09G3/3233 , G09G3/3275 , G09G3/3266 , G09G3/20 , G09G3/36
Abstract: A display apparatus includes a first transistor including a semiconductor layer, a first electrode and a second electrode, the first electrode and the second electrode respectively electrically connected to a source area and a drain area of the semiconductor layer, and a first gate electrode and a second gate electrode corresponding to a channel area of the semiconductor layer and facing each other, and a capacitor including a first capacitor electrode, a second capacitor electrode above the first capacitor electrode, and a third capacitor electrode below the first capacitor electrode.
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公开(公告)号:US11114036B2
公开(公告)日:2021-09-07
申请号:US16434432
申请日:2019-06-07
Applicant: Samsung Display Co., Ltd.
Inventor: Boyoung Chung , Youngwan Seo , Dongwoo Kim , Yeonkyung Kim , Chong Chul Chai
IPC: G06F3/038 , G09G3/3266 , G09G3/3225
Abstract: A scan driver includes a plurality of circuit stages, each circuit stage including a first input part configured to transfer a carry signal to a first node in response to a first clock signal, a second input part configured to transfer the first clock signal to a second node in response to a signal of the first node, a first output part configured to transfer a third clock signal to an output terminal in response to a signal of the second node, a holding part configured to maintain a signal of a third node response to a second clock signal, and a second output part configured to transfer a signal of the third node to the output terminal in response to the second clock signal.
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公开(公告)号:US20210104194A1
公开(公告)日:2021-04-08
申请号:US17125732
申请日:2020-12-17
Applicant: Samsung Display Co., Ltd.
Inventor: Keunwoo Kim , Sooyoung Park , Joonghyun Park , Dongwoo Kim , Kyoung-Ju Shin
IPC: G09G3/3233 , G09G3/3283
Abstract: A display device includes: pixels to emit light of various intensity in accordance with driving signals; data lines to communicate the driving signals to the pixels; scan lines to communicate scan signals to select at least one of the pixels to receive the driving signals; a first power supply to supply at least one driving voltage to the pixels; and a second power supply including an initial voltage terminal to supply an initial voltage to the pixels. The at least one pixel includes: a driving transistor connected between the first power supply and an anode electrode of an organic light emitting diode, a third transistor including an oxide transistor, the third transistor having a first electrode connected to the initial voltage terminal, a second electrode connected to the anode electrode, and first and second gate electrodes, each of which is connected to one of the scan lines, and a fourth transistor including a poly-silicon transistor, the fourth transistor having a first electrode connected to the first power supply, and a second electrode connected to a second electrode of the driving transistor.
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