Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Wuhan Tianma Micro-electronics Co., Ltd

Jian Kuang

Mengmeng Zhang

Xingyao Zhou

Yana Gao

Yue Ping Li

Yuantao Wu

Chenguang Sun

Wei Liu

Kang Yang

Gaojun Huang

Shuai Yang

Lilian Kuang

A display panel, a method for driving the same, and a display apparatus are provided. The display panel includes data signal lines and pixel circuits. The pixel circuit includes a driving module and a data voltage writing module. The data voltage writing module is connected between the data signal line and the input terminal of the driving module. The display panel has first and second phases when displaying one frame of an image. The first phase includes a data writing phase and a light-emitting phase. The second phase includes an adjusting phase and a light-emitting phase. During the data writing phase, the data voltage writing module is turned on, and the data signal line transmits the data voltage. During the adjusting phase, the data voltage writing module is turned on, and the data signal line transmits the adjusting voltage corresponding to the data voltage transmitted during the data writing phase.

Display panel, method for driving the same, and display apparatus

A display panel includes pixel circuits and light-emitting elements. A driving module in a pixel circuit is configured to provide a driving current for a light-emitting element in a light emission stage. A bias adjustment module is configured to provide a bias adjustment signal for a driving transistor of the driving module in a bias adjustment stage. A first non-light emission stage includes the bias adjustment stage. In the same first non-light emission stage, time between an end moment of the bias adjustment stage and an end moment of the first non-light emission stage is a bias maintaining stage. The brightness of the display panel in the first mode is different from that in the second mode. At least one of a duration of the bias adjustment stage and a duration of the bias maintaining stage in the first mode is different from the corresponding one in the second mode.

Display panel, driving method therefor and display apparatus

The method includes, in a low-frequency driving mode where a keeping phase is arranged between two active phases, providing a light-emitting control signal with a duty cycle of a % to a pixel circuit during the active phase; and performing first and second switches on the light-emitting control signal during the keeping phase. The first switch is performed before the second switch. Panel brightness at the first switch is higher than panel brightness at the second switch. The duty cycle of the light-emitting control signal is b % after the second switch. b>a. A total duration of active levels of the light-emitting control signal within one frame after the first switch is between a total duration of active levels of the light-emitting control signal with the duty cycle of a % and a total duration of active levels of the light-emitting control signal with the duty cycle of b % within one frame.

Method for driving display panel, and display apparatus

The present disclosure relate to a driving method for a display panel, a display panel, and a display apparatus. The display panel includes a first mode, and a driving period in the first mode includes an active frame and a hold frame. The driving method includes: in the first mode, controlling a total light emission duration of a light emission control signal in two adjacent time units in the driving period to satisfy the following condition: where the time unit includes at least one light emission period, a first time unit at least partially overlaps with the active frame, Ndenotes a total light emission duration of the light emission control signal in the i-th time unit, Ndenotes a total light emission duration of the light emission control signal in the (i+1)-th time unit, i≥1, and A denotes a critical percentage threshold for brightness variation.

Driving method for display panel, display panel, and display apparatus

Provided are a display panel, a method for driving a display panel, and a display apparatus. The display panel includes a light-emitting element, a pixel driver circuit, and a control circuit. The pixel driver circuit includes a driver transistor and a first light emission control switch. A working mode of the display panel includes a first mode. In the first mode, a working cycle of the pixel driver circuit includes a data writing phase and at least one data holding phase subsequent to the data writing phase. The data writing phase includes at least one first light-emitting period. The data holding phase includes at least one second light-emitting period. The control circuit controls a duration of a first one of the at least one first light-emitting period in the data writing phase to be less than a duration of one of the at least one second light-emitting period.

Display panel, method for driving a display panel and display apparatus

A display panel and a display apparatus are provided. The display panel includes data lines located in a display region, and a power bus, connection traces, and a control circuit that are located in a non-display region. The connection trace at least partially overlaps with the power bus in a direction perpendicular to a plane of the display panel, and has a first area that is an overlapping area between the connection trace and the power bus. The control circuit includes control transistors. A first electrode and/or a second electrode of the control transistor is coupled to the connection trace. The control transistors include a first control transistor and a second control transistor. The connection trace coupled to the first control transistor and the connection trace coupled to the second control transistor have different first areas. Channel areas of the first control transistor and the second control transistor are different.

Display panel and display apparatus

The present disclosure provides a display panel, a driving method, and a display apparatus. The display panel includes pixel circuits, the pixel circuits include: a drive transistor, with a gate electrically connected to a first node, a first electrode electrically connected to a second node; a voltage writing module, electrically connected to a first scanning signal line, a data line, and second node; a threshold compensation module, wherein a driving cycle of the pixel circuit includes a writing phase and a holding phase, writing phase includes a first non-light-emission period, and holding phase includes a second non-light-emission period; voltage writing module writes a display voltage into second node in first non-light-emission period in response to an enable level of first scanning signal, writes a node reset voltage into the second node in the second non-light-emission period in response to the enable level of the first scanning signal.

Display panel, driving method for same, and display apparatus

Provided is a pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit includes: driving transistor having gate electrode connected to first node, first electrode connected to second node, and second electrode electrically connected to third node coupled to light emitting element; storage capacitor connected to the first node; and M first transistors having M first and second electrodes connected to the first node M functional signal terminals, respectively, M&#x2265;1. A driving cycle of the pixel driving circuit includes light-emitting stage and N non-light-emitting stages, N&#x2265;M. The M first transistors are respectively turned on in the N non-light-emitting stages, and the M first transistors are all turned off in the light-emitting stage. One of the N non-light-emitting stages includes first non-light-emitting stage adjacent to the light-emitting stage. Channel length L and width W of the first transistor satisfy: 

Pixel driving circuit, display panel and display apparatus

A pixel driving circuit, a method for driving the same and a display panel are provided. In an embodiment, the pixel driving circuit includes: a driving circuit; a light-emitting circuit including a first electrode and a first reset circuit. In an embodiment, a working timing sequence of the pixel driving circuit includes working periods, one of which includes first and second light-emitting stages. In an embodiment, the first and second light-emitting stages each include a reset stage and a light-emitting stage, wherein, during the reset stage of the first light-emitting stage, the first reset circuit transmits a first reset voltage to the first electrode of the light-emitting circuit and during the reset stage of the second light-emitting stage, the first reset circuit transmits a modification reset voltage to the first electrode of the light-emitting circuit, the modification reset voltage being different from the first reset voltage.

Pixel driving circuit and method for driving the same, display panel, and display device

A pixel driving circuit, a method for driving the same, and a display panel are provided. An operating sequence of the pixel driving circuit includes a first light-emitting stage and a second light-emitting stage after the first light-emitting stage. The first light-emitting stage includes a data writing stage and a light-emitting stage after the data writing stage. The second light-emitting stage includes a correcting stage and a light-emitting stage after the correcting stage. The pixel driving circuit includes a driving module, a threshold voltage capturing module configured to be turned on during the data writing stage and to write a data voltage to a control terminal of the driving module, and a coupling module configured to adjust a coupling voltage of the control terminal of the driving module during the correcting stage and the light-emitting stage of the second light-emitting stage.

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Wuhan, China

Jian Kuang