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公开(公告)号:US11824061B2
公开(公告)日:2023-11-21
申请号:US16783002
申请日:2020-02-05
Applicant: Samsung Display Co., LTD.
Inventor: Joon Seok Park , Tae Sang Kim , Yeon Keon Moon , Geun Chul Park , Jun Hyung Lim , Kyung Jin Jeon
IPC: H01L27/12
CPC classification number: H01L27/1225 , H01L27/124 , H01L27/127 , H01L27/1251
Abstract: A display device includes a plurality of pixels respectively coupled to scan lines and data lines intersecting the scan lines, wherein at least some of the pixels includes a driving transistor including a substrate, a first insulating layer disposed on the substrate, a first active layer disposed on the first insulating layer, a first gate electrode disposed on the first active layer, and a first source electrode and a first drain electrode electrically connected to the first active layer, the first drain electrode being spaced apart from the first source electrode by a first distance, and a switching transistor including a second gate electrode disposed between the substrate and the first insulating layer, a second active layer disposed on the same layer as the first active layer, and a second source electrode and a second drain electrode electrically connected to the second active layer, the second drain electrode being spaced apart from the second source electrode by a second distance different from the first distance.
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公开(公告)号:US11469283B2
公开(公告)日:2022-10-11
申请号:US16952762
申请日:2020-11-19
Applicant: Samsung Display Co., LTD.
Inventor: Myoung Hwa Kim , Joon Seok Park , Tae Sang Kim , Yeon Keon Moon , Geun Chul Park , Sang Woo Sohn , Jun Hyung Lim , Hye Lim Choi
IPC: H01L27/32 , H01L27/12 , H01L29/423
Abstract: A display device is provided. The display device includes a substrate, a first active layer of a first transistor and a second active layer of a second transistor which are disposed on the substrate, a first gate insulating layer disposed on the first active layer, an oxide layer disposed on the first gate insulating layer and including an oxide semiconductor, a first gate electrode disposed on the oxide layer, a second gate insulating layer disposed on the first gate electrode and the second active layer, and a second gate electrode which overlaps the second active layer in a thickness direction of the substrate and is disposed on the second gate insulating layer, where the oxide layer overlaps the first active layer and does not overlap the second active layer in the thickness direction.
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公开(公告)号:US11430859B2
公开(公告)日:2022-08-30
申请号:US16885598
申请日:2020-05-28
Applicant: Samsung Display Co., Ltd.
Inventor: Joon Seok Park , Myounghwa Kim , Tae Sang Kim , Hyungjun Kim , Yeon Keon Moon , Geunchul Park , Sangwoo Sohn , Jun Hyung Lim , Kyung Jin Jeon , Hye Lim Choi
Abstract: A display device includes a first pixel, a second pixel, a first data line connected to the first pixel, and a second data line connected to the second pixel. Each of the first pixel and the second pixel includes a transistor including a conductive layer, a semiconductor layer on the conductive layer, a gate electrode on the semiconductor layer, and a source/drain electrode connected to the semiconductor layer, a capacitor including a first capacitor electrode in a same layer as the gate electrode and a second capacitor electrode on the first capacitor electrode, and a light emitting device on the transistor and the capacitor. The first data line is in a same layer as the source/drain electrode, and the second data line is in a same layer as one of the conductive layer and the second capacitor electrode.
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公开(公告)号:US20160300526A1
公开(公告)日:2016-10-13
申请号:US14926922
申请日:2015-10-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Ji Hun Lim , Yeon Keon Moon , Masataka Kano , Jun Hyung Lim
CPC classification number: G09G3/3233 , G09G2300/0842 , G09G2320/043
Abstract: A display device includes: a plurality of pixels, wherein each of the plurality of pixels includes at least two double-gate transistors including a first gate electrode and a second gate electrode; conduction between source electrodes and drain electrodes of the at least two double-gate transistors is controlled by a voltage applied to the first gate electrode, and electrical connection between the second gate electrode and the first gate electrode of each of the at least two double-gate transistors is determined depending on a polarity of a voltage applied on average to each of the at least two double-gate transistors.
Abstract translation: 显示装置包括:多个像素,其中所述多个像素中的每一个包括至少两个包括第一栅电极和第二栅电极的双栅晶体管; 所述至少两个双栅极晶体管的源电极和漏电极之间的导通由施加到所述第一栅电极的电压以及所述至少两个双栅极晶体管中的每一个的所述第二栅电极和所述第一栅电极之间的电连接来控制, 取决于对至少两个双栅极晶体管中的每一个平均施加的电压的极性来确定栅极晶体管。
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公开(公告)号:US11532687B2
公开(公告)日:2022-12-20
申请号:US16880792
申请日:2020-05-21
Applicant: Samsung Display Co., Ltd.
Inventor: Sangwoo Sohn , Myounghwa Kim , TaeSang Kim , Hyungjun Kim , Yeon Keon Moon , Joon Seok Park , Sangwon Shin , Jun Hyung Lim , Hyelim Choi
IPC: H01L27/32 , H01L51/56 , H01L51/52 , H01L29/786
Abstract: A display panel includes a base layer, a first thin film transistor on the base layer, a second thin film transistor electrically coupled to the first thin film transistor, and a light emitting element electrically coupled to the second thin film transistor. The first thin film transistor includes a first semiconductor pattern on the base layer, a first barrier pattern on the first semiconductor pattern and including a gallium (Ga) oxide and a zinc (Zn) oxide, and a first control electrode on the first barrier pattern and overlapping the first semiconductor pattern. Accordingly, a signal transmission speed of the display panel may be improved, and electrical characteristics and reliability of the thin film transistor included in the display panel may be improved.
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公开(公告)号:US11271015B2
公开(公告)日:2022-03-08
申请号:US16876984
申请日:2020-05-18
Applicant: Samsung Display Co., LTD.
Inventor: Joon Seok Park , Myoung Hwa Kim , Tae Sang Kim , Hyung Jun Kim , Yeon Keon Moon , Geun Chul Park , Sang Woo Sohn , Jun Hyung Lim , Kyung Jin Jeon , Hye Lim Choi
IPC: H01L27/12 , G02F1/1362 , H01L27/32
Abstract: A display device includes a substrate, a buffer layer disposed on the substrate, a first semiconductor layer disposed on the buffer layer and including an oxide semiconductor and a first active layer, a first gate insulating layer disposed on the first semiconductor layer and the buffer layer, a second semiconductor layer disposed on the first gate insulating layer and including an oxide semiconductor, a second active layer, and a first oxide layer on the first active layer, a second gate insulating layer disposed on the second semiconductor layer, a first conductive layer disposed on the second gate insulating layer, an insulating layer disposed on the first conductive layer, a second conductive layer disposed on the insulating layer, a passivation layer disposed on the second conductive layer, and a third conductive layer disposed on the first passivation layer.
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公开(公告)号:US11152399B2
公开(公告)日:2021-10-19
申请号:US16453976
申请日:2019-06-26
Applicant: Samsung Display Co., Ltd.
Inventor: Yeon Keon Moon , Kano Masataka , Myoung Hwa Kim , Jun Hyung Lim
IPC: H01L27/12 , H01L29/786 , G09G3/36
Abstract: A display device in which a display area and a non-display area are defined, the display device including a wiring substrate, the wiring substrate including: a base substrate; a first thin film transistor disposed on the base substrate, located in the non-display area, and including a first gate pattern, a first semiconductor pattern disposed on the first gate pattern, a first source pattern disposed on the first semiconductor pattern, and a first drain pattern disposed on the first semiconductor pattern and spaced apart from the first source pattern; and a second thin film transistor disposed on the base substrate and located in the display area. A first channel width of the first thin film transistor is greater than a first overlap length of the first gate pattern, the first semiconductor pattern, and the first drain pattern.
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公开(公告)号:US11138929B2
公开(公告)日:2021-10-05
申请号:US16850775
申请日:2020-04-16
Applicant: Samsung Display Co., LTD.
Inventor: Joon Seok Park , Yeon Keon Moon , Myoung Hwa Kim , Tae Sang Kim , Hyung Jun Kim , Geun Chul Park , Sang Woo Sohn , Jun Hyung Lim , Kyung Jin Jeon , Hye Lim Choi
IPC: G09G3/3225 , G09G3/3275 , H01L27/32 , G09G3/3266 , H01L29/66 , H01L27/12 , H01L29/417 , H01L29/786 , H01L21/02
Abstract: A display device includes a pixel including a light emitting element connected to a scan line and a data line; a driving transistor that controls a driving current supplied to the light emitting element according to a data voltage applied from the data line. The driving transistor includes a first semiconductor layer, and a first gate electrode disposed on the first semiconductor layer. The display device includes a switching transistor that applies the data voltage to the driving transistor according to a scan signal applied to the scan line. The switching transistor includes a second semiconductor layer, and a second gate electrode disposed on the second semiconductor layer. The display device includes a light blocking layer and a first buffer layer disposed at a lower portion of the driving transistor. The light blocking layer and the first buffer layer do not overlap the switching transistor.
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公开(公告)号:US10916196B2
公开(公告)日:2021-02-09
申请号:US16550966
申请日:2019-08-26
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Yeon Keon Moon , Joon Seok Park , Kwang Suk Kim , Tae Sang Kim , Geunchul Park , Jun Hyung Lim , Kyungjin Jeon
IPC: G09G3/3258 , G09G3/3291
Abstract: An organic light emitting display device may include a display panel, a source driving circuit, and a voltage generator. The display panel may include a pixel circuit including a driving transistor to drive an organic light emitting diode. The driving transistor may have four independent terminals including first and second gate electrodes. The source driving circuit may provide a data voltage to the pixel circuit. The voltage generator may apply an independent bias voltage to the second gate electrode of the driving transistor to control a driving voltage range of the driving transistor.
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公开(公告)号:US20200234654A1
公开(公告)日:2020-07-23
申请号:US16739012
申请日:2020-01-09
Applicant: Samsung Display Co., Ltd.
Inventor: Myoung Hwa Kim , Masataka Kano , Yeon Keon Moon , Joon Seok Park , Jun Hyung Lim , Hye Lim Choi
IPC: G09G3/3291 , G09G3/3266 , H01L51/52 , H01L51/56
Abstract: A display device including: a pixel connected to a scan line and a data line intersecting the scan line. The pixel includes a light emitting element and a driving transistor which controls a driving current supplied to the light emitting element according to a data voltage applied from the data line. The driving transistor includes a first active layer including an oxide semiconductor doped with a metal.
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