公开(公告)号：US20160284778A1

公开(公告)日：2016-09-29

申请号：US15082012

申请日：2016-03-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Mitsuaki OSAME ,  Aya ANZAI ,  Yu YAMAZAKI ,  Ryota FUKUMOTO

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3291 ,  H01L51/52

CPC classification number: H01L27/3262 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0219 ,  G09G2320/0233 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/3244 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3276 ,  H01L29/78675 ,  H01L51/52 ,  H01L2251/5323 ,  H04M1/0266

Abstract: A potential of a gate of a driving transistor is fixed, and the driving transistor is operated in a saturation region, so that a current is supplied thereto anytime. A current control transistor operating in a linear region is disposed serially with the driving transistor, and a video signal for transmitting a signal of emission or non-emission of the pixel is input to a gate of the current control transistor via a switching transistor.

Abstract translation: 驱动晶体管的栅极的电位固定，并且驱动晶体管在饱和区域中工作，从而随时提供电流。 在线性区域中工作的电流控制晶体管与驱动晶体管串联布置，并且用于传输像素的发射或非发射信号的视频信号通过开关晶体管输入到电流控制晶体管的栅极。

公开(公告)号：US20170053600A1

公开(公告)日：2017-02-23

申请号：US15344745

申请日：2016-11-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yu YAMAZAKI

IPC: G09G3/3283 ,  G09G3/325 ,  H01L27/12 ,  H01L27/32 ,  H01L27/06

CPC classification number: G09G3/3283 ,  G09G3/325 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0209 ,  G09G2320/0233 ,  H01L27/0629 ,  H01L27/1255 ,  H01L27/3276

Abstract: When writing a signal current from a current source to a current source circuit, noise occurs in some cases in a wiring through which a current flows, which may cause a potential of the wiring to be outside the normal range. As the potential does not turn back within the normal range easily at this time, writing to the current source circuit is delayed. According to the invention, when the potential becomes outside the normal range due to noise occurring in a wiring through which a current flows when writing a signal current from a current source to a current source circuit, a current is supplied from other than the current source, thereby the potential of the wiring can turn back within the normal range rapidly.

Abstract translation: 当将来自电流源的信号电流写入电流源电路时，在某些情况下，在电流流动的布线中会发生噪声，这可能导致布线的电位超出正常范围。 由于此时电位不能在正常范围内容易地回退，所以写入电流源电路会延迟。 根据本发明，当从电流源向电流源电路写入信号电流时，由于在电流流过的布线中发生的噪声，当电位超出正常范围时，电流从电流源 因此布线的电位可以迅速回到正常范围内。

公开(公告)号：US20130092990A1

公开(公告)日：2013-04-18

申请号：US13709806

申请日：2012-12-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yu YAMAZAKI

IPC: H01L27/06

CPC classification number: G09G3/3283 ,  G09G3/325 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0209 ,  G09G2320/0233 ,  H01L27/0629 ,  H01L27/1255 ,  H01L27/3276

Abstract: When writing a signal current from a current source to a current source circuit, noise occurs in some cases in a wiring through which a current flows, which may cause a potential of the wiring to be outside the normal range. As the potential does not turn back within the normal range easily at this time, writing to the current source circuit is delayed. According to the invention, when the potential becomes outside the normal range due to noise occurring in a wiring through which a current flows when writing a signal current from a current source to a current source circuit, a current is supplied from other than the current source, thereby the potential of the wiring can turn back within the normal range rapidly.

公开(公告)号：US20220406865A1

公开(公告)日：2022-12-22

申请号：US17893221

申请日：2022-08-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Mitsuaki OSAME ,  Aya ANZAI ,  Yu YAMAZAKI ,  Ryota FUKUMOTO

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3291 ,  H01L27/12 ,  H04M1/02 ,  H01L51/52

Abstract: A potential of a gate of a driving transistor is fixed, and the driving transistor is operated in a saturation region, so that a current is supplied thereto anytime. A current control transistor operating in a linear region is disposed serially with the driving transistor, and a video signal for transmitting a signal of emission or non-emission of the pixel is input to a gate of the current control transistor via a switching transistor.

公开(公告)号：US20180019292A1

公开(公告)日：2018-01-18

申请号：US15636908

申请日：2017-06-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Mitsuaki OSAME ,  Aya ANZAI ,  Yu YAMAZAKI ,  Ryota FUKUMOTO

IPC: H01L27/32 ,  H01L27/12 ,  H04M1/02 ,  H01L51/52 ,  G09G3/20 ,  H01L29/786

CPC classification number: H01L27/3262 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0219 ,  G09G2320/0233 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/3244 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3276 ,  H01L29/78675 ,  H01L51/52 ,  H01L2251/5323 ,  H04M1/0266

Abstract: A potential of a gate of a driving transistor is fixed, and the driving transistor is operated in a saturation region, so that a current is supplied thereto anytime. A current control transistor operating in a linear region is disposed serially with the driving transistor, and a video signal for transmitting a signal of emission or non-emission of the pixel is input to a gate of the current control transistor via a switching transistor.

公开(公告)号：US20150060864A1

公开(公告)日：2015-03-05

申请号：US14532478

申请日：2014-11-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yu YAMAZAKI

IPC: H01L27/32 ,  H01L27/12

CPC classification number: G09G3/3283 ,  G09G3/325 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0209 ,  G09G2320/0233 ,  H01L27/0629 ,  H01L27/1255 ,  H01L27/3276

Abstract: When writing a signal current from a current source to a current source circuit, noise occurs in some cases in a wiring through which a current flows, which may cause a potential of the wiring to be outside the normal range. As the potential does not turn back within the normal range easily at this time, writing to the current source circuit is delayed. According to the invention, when the potential becomes outside the normal range due to noise occurring in a wiring through which a current flows when writing a signal current from a current source to a current source circuit, a current is supplied from other than the current source, thereby the potential of the wiring can turn back within the normal range rapidly.

Abstract translation: 当将来自电流源的信号电流写入电流源电路时，在某些情况下，在电流流动的布线中会发生噪声，这可能导致布线的电位超出正常范围。 由于此时电位不能在正常范围内容易地回退，所以写入电流源电路会延迟。 根据本发明，当从电流源向电流源电路写入信号电流时，由于在电流流过的布线中发生的噪声，当电位超出正常范围时，电流从电流源 因此布线的电位可以迅速回到正常范围内。