公开(公告)号：US10607521B2

公开(公告)日：2020-03-31

申请号：US16198963

申请日：2018-11-23

Applicant: Shanghai Tianma AM-OLED Co., Ltd.

Inventor： Kerui Xi ,  Tingting Cui ,  Feng Qin ,  Xingyao Zhou ,  Boquan Lin

IPC: G09G3/20

Abstract: The embodiments of the present disclosure provide an emission controller, a control method thereof and a display device, capable of preventing luminance of sub-pixels from deviating from its standard value and improving display quality. The emission controller includes a plurality of emission control circuits each including: a first processing module configured to receive a first voltage signal, provide a first signal to a first node and a second signal to a second node; a second processing module configured to provide a third signal to a third node; a third processing module configured to receive a second voltage signal and provide a fourth signal to the first and third nodes; a fourth processing module configured to pull down signal at the first node; and a gating module configured to receive the first voltage signal and the second voltage signal and provide an emission control signal to the emission control signal terminal.

公开(公告)号：US20180145093A1

公开(公告)日：2018-05-24

申请号：US15873915

申请日：2018-01-18

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui XI ,  Tingting Cui ,  Zhonglan Cai ,  Zuzhao Xu

IPC: H01L27/12 ,  H01L27/32 ,  H01L29/423 ,  H01L29/417 ,  G06F13/40

CPC classification number: H01L27/1214 ,  G02F1/136213 ,  G02F1/136286 ,  G06F13/40 ,  H01L27/124 ,  H01L27/3248 ,  H01L29/41733 ,  H01L29/42384 ,  H01L51/5203

Abstract: A display panel is described. Further, an electroluminescent display panel and a display device are described. By arrangement of a second signal bus line, a first end of a first signal line in a first display area in the display panel is electrically connected with the first signal bus line, and the second end of the first signal line is electrically connected with a first conducting wire in the second signal bus line, so that uniformity of a signal input by the first signal line in the first display area can be ensured. Therefore, the structure is not only the precondition of ensuring signal uniformity of the first display area, but is also the precondition of ensuring signal uniformity of a display area of the entire display panel.

公开(公告)号：US10733939B2

公开(公告)日：2020-08-04

申请号：US15890361

申请日：2018-02-07

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui Xi ,  Junting Ouyang ,  Baiquan Lin ,  Tingting Cui

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/3241 ,  G09G3/3233

Abstract: Disclosed are a pixel circuit, a display panel and a drive method for a pixel circuit. The pixel circuit comprises: a light-emitting element, configured for emitting light in response to a drive current; a drive transistor, configured for providing the drive current to the light-emitting element; a data write device, configured for writing a data signal to a gate electrode of the drive transistor; a hold device, electrically connected with the gate electrode of the drive transistor and configured for holding a voltage on the gate electrode of the drive transistor in a light-emitting stage; and a control device, electrically connected with the gate electrode of the drive transistor and configured for controlling the drive transistor to operate in a full cut-off region in a cut-off stage, wherein, the cut-off stage precedes the light-emitting stage.

公开(公告)号：US10347659B2

公开(公告)日：2019-07-09

申请号：US15873915

申请日：2018-01-18

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui Xi ,  Tingting Cui ,  Zhonglan Cai ,  Zuzhao Xu

IPC: H01L27/12 ,  H01L27/32 ,  H01L29/423 ,  G06F13/40 ,  H01L29/417 ,  G02F1/1362 ,  H01L51/52

Abstract: A display panel is described. Further, an electroluminescent display panel and a display device are described. By arrangement of a second signal bus line, a first end of a first signal line in a first display area in the display panel is electrically connected with the first signal bus line, and the second end of the first signal line is electrically connected with a first conducting wire in the second signal bus line, so that uniformity of a signal input by the first signal line in the first display area can be ensured. Therefore, the structure is not only the precondition of ensuring signal uniformity of the first display area, but is also the precondition of ensuring signal uniformity of a display area of the entire display panel.

公开(公告)号：US20180190190A1

公开(公告)日：2018-07-05

申请号：US15907288

申请日：2018-02-28

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui Xi ,  Tingting Cui ,  Juan Zhu

IPC: G09G3/3225

Abstract: Disclosed are a display panel and a display device. A middle area is arranged between the first subarea and the second subarea so that components such as a camera and a receiver can be arranged at corresponding positions in the middle area. First driving signal lines only extend along the row direction of the pixels to the edge of the first subarea close to the middle area and second driving signal lines only extend to the edge of the second subarea close to the middle area. A first driving circuit is arranged in the first subarea to drive the first driving signal lines to operate and a second driving circuit is arranged in the second subarea to drive the second driving signal lines to operate.

公开(公告)号：US10600353B2

公开(公告)日：2020-03-24

申请号：US15912045

申请日：2018-03-05

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui Xi ,  Tingting Cui ,  Baiquan Lin ,  Junting Ouyang ,  Zhonglan Cai

IPC: G09G3/30 ,  G09G3/3233

Abstract: Disclosed are a method for driving a pixel circuit, a display panel and a display device. The pixel circuit includes: a data write module, a drive transistor, a hold module and a light-emitting element. The method comprises, in a time period for a frame of display: a data writing stage in which a data signal is written by the data write module into a gate electrode of the drive transistor; a light-emitting stage in which a voltage on the gate electrode of the drive transistor is held by the hold module, the drive transistor supplies a drive current to the light-emitting element, and the light-emitting element emits light in response to the drive current; and a cut-off stage in which the drive transistor operates in a full cut-off region.

公开(公告)号：US10460656B2

公开(公告)日：2019-10-29

申请号：US15907288

申请日：2018-02-28

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui Xi ,  Tingting Cui ,  Juan Zhu

IPC: G09G3/36 ,  G09G3/3225 ,  G09G3/3208

Abstract: Disclosed are a display panel and a display device. A middle area is arranged between the first subarea and the second subarea so that components such as a camera and a receiver can be arranged at corresponding positions in the middle area. First driving signal lines only extend along the row direction of the pixels to the edge of the first subarea close to the middle area and second driving signal lines only extend to the edge of the second subarea close to the middle area. A first driving circuit is arranged in the first subarea to drive the first driving signal lines to operate and a second driving circuit is arranged in the second subarea to drive the second driving signal lines to operate.

公开(公告)号：US10607540B2

公开(公告)日：2020-03-31

申请号：US15917443

申请日：2018-03-09

Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.

Inventor： Kerui Xi ,  Tingting Cui ,  Baiquan Lin ,  Junting Ouyang ,  Ruiyuan Zhou

IPC: G09G3/3233 ,  G09G3/3208

Abstract: Provided are a display panel and a display device. A pixel circuit in the disclosed display panel includes a driving module, a data writing module, a storage module, and at least one control module. The data writing module is configured to write a data signal into a control terminal of the driving module. The storage module is electrically connected to the control terminal of the driving module for maintaining a voltage on the control terminal of the driving module in an emit-lighting phase. The control module is electrically connected to the control terminal of the driving module for writing a signal into the control terminal of the driving module prior to the light-emitting stage. At least one hollowed structure is provided on the continuous gate structure of the control transistor of the control module. At least one channel's width-to-length ratio is different from others among the overlapping portions' channels.