Boe Technology Group Co., Ltd.

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Hefei Boe Display Technology Co., Ltd.

Hefei Boe Optoelectronics Technology Co., Ltd.

Boe Technology Groupco., Ltd.

Zuquan Hu

Ke Dai

Ming Hu

Rui Ma

Peng Hui Jiang

Zhenyu Zhang

Haipeng Yang

Guolei Wang

Xiaoye Ma

Xiping Wang

Xiaofang Gu

Suzhen Mu

Rongcheng Liu

Yubo Xu

Yue Du

Byung Cheon Lim

A display device, a gate drive circuit, a shift register and a control method are disclosed. The shift register includes a first shift register unit and a second shift register unit, the first shift register unit is configured to write a first control signal to the first node, and write a first clock signal to the first signal output terminal under control of a voltage of the first node; the second shift register unit is configured to write a second clock signal to the second signal output terminal under control of the voltage of the first node; during time of a frame, the first clock signal and a first input signal provided by a first signal input terminal are pulse signals, and the second clock signal is a DC signal.

Display device, gate drive circuit, shift register including two units and control method thereof

Display device, gate drive circuit, shift register and control method thereof

The present disclosure relates to the field of display technology, and provides a display module and a display device. The display module includes a first display sub-panel, where the first display sub-panel includes: a first display sub-panel including a plurality of first pixel units; and a second display sub-panel arranged at a light-entering side of the first display sub-panel and including a plurality of second pixel units. Each second pixel unit corresponds to at least one first pixel unit, an orthogonal projection of each second pixel unit onto the first display sub-panel coincides with the corresponding first pixel unit, and the second display sub-panel is a vertical-electric-field-type liquid crystal display panel.

Display module and display device

A display device, a gate drive circuit, a shift register and a control method are disclosed. A first shift register unit of the shift register is configured to write a first control signal to a first node under control of a first input signal, write a first clock signal to a first signal output terminal; a second shift register unit of the shift register is configured to write a second control signal to the first node under control of a second input signal, write a second clock signal to a second signal output terminal; during the first frame, the first clock signal and the first input signal are pulse signals, the second clock signal and the second input signal are DC signals; during the second frame, the first clock signal and the first input signal are DC signals, the second clock signal and the second input signal are pulse signals.

Display device, gate drive circuit, shift register including two shift register units and control method thereof

The present disclosure relates to a shift register circuit and a drive method thereof, a gate drive circuit, and a display panel. The shift register circuit comprises a second reset circuit, and a reset operation is performed for a first node and a signal output terminal by the second reset circuit during an off stage of the display panel.

Shift register circuit and drive method thereof, gate drive circuit, and display panel

Provided are a pixel circuit, a display panel, a display device and a pixel driving method, the pixel circuit including: a data compensation circuit, a storage circuit, a driving transistor and a replication transistor, the replication transistor and the driving transistor have the same structure; the data compensation circuit writes, in an initialization stage, a first voltage into a first node under a control of a second control signal and a third control signal; and to write, in a data writing and compensation stage, under a control of the third control signal and a first control signal, a data voltage to a first electrode of the replication transistor to detect a threshold voltage thereof, write a compensation voltage to the first node for storage by the storage circuit, the compensation voltage being equal to a sum of the data voltage and the threshold voltage of the replication transistor.

Pixel circuit, display panel, display device and pixel driving method

A gate-driver-on-array (GOA) circuit includes N GOA units cascaded in series to generate N sets of driving signals. Each n-th GOA unit includes a first terminal configured to receive a high-level voltage, a second terminal configured to receive a low-level voltage, and a clock signal terminal configured to receive a clock signal, an input terminal and a reset terminal respectively configured to receive internal signals from two alternative GOA units in the series, a first output terminal configured to output a gate-driving signal, and a second output terminal configured to output a node voltage signal. Each n-th set of the N sets of driving signals includes a first driving signal being a gate-driving signal from a (n&#x2212;1)th GOA unit, a second driving signal being a gate-driving signal from a n-th GOA unit, and a third driving signal being a node voltage signal from the n-th GOA unit for driving an AMOLED pixel circuit.

Gate driver on array circuit, pixel circuit of an AMOLED display panel, AMOLED display panel, and method of driving pixel circuit of AMOLED display panel

A pixel driving circuit includes a control sub-circuit, a charging sub-circuit, a driving sub-circuit and a light-emitting sub-circuit, the control sub-circuit is used to control a first thin film transistor to charge the charging sub-circuit, and the charging sub-circuit is used to provide a voltage to the driving sub-circuit to drive the light-emitting sub-circuit to emit light.

Pixel driving circuit, display device and driving method

A touch display panel includes a plurality of gate lines extending in a first direction; a plurality of data lines extending in a second direction intersecting the first direction; and a plurality of pixels at intersections of the gate lines and the data lines. Each of the pixels includes a pixel electrode and a common electrode opposite to the pixel electrode. The common electrodes are distributed in a plurality of touch regions arranged in an array and independent of each other. Each of the touch regions includes at least one connecting line extending in the first direction and a respective touch signal line electrically connected to the at least one connecting line and extending in the second direction. Each of the at least one connecting line electrically connects together respective ones of the plurality of common electrodes.

Touch display panel, method of driving and manufacturing same, and touch display device

A shift register, a method of driving a shift register, a gate driving circuit and a display device are disclosed. The shift register includes an input circuit, a first output circuit and a second output circuit. The input circuit is connected to a first node and is configured to control a level of the first node in response to an input signal. The first output circuit is connected to the first node, a first output terminal and a third output terminal, and is configured to transmit a received clock signal to the first output terminal and the third output terminal in response to the level of the first node. The second output circuit is connected to the first node, a first voltage terminal, a second voltage terminal and a second node.

Shift register, method of driving shift register, gate driving circuit and display device

A pixel circuit is provided. The pixel circuit includes a driving transistor (TP) and a touch module () configured to cause a voltage change when a touch operation happens and coupled to a data line through a writing compensation module (), wherein the writing compensation module () includes a storage capacitor (C), is configured to compensate a threshold voltage of the driving transistor (TP), and to allow the voltage change to be read out through the data line.

Pixel circuit and driving method, array substrate, and display apparatus

Provided is a pixel circuit. The pixel circuit includes a driving transistor (T); a touch module () configured to cause a voltage change when a touch operation happens and coupled to a data line; and a writing compensation module () having a storage capacitor (C) and a holding capacitor (Coled), configured to compensate a threshold voltage of the driving transistor (T), and to allow the voltage change to be read out through the data line by sharing at least one component with the touch module ().

Pixel circuit and driving method, display panel and display apparatus

There are provided a pixel circuit, a method for driving the light emitting device () and an organic light emitting display panel. The initializing module () is added to the pixel circuit. In the initializing phase, the initializing module () initializes the driving module () and the light emitting device (); in the writing phase, the charging module () writes the data signal inputted from the data signal terminal into the control terminal of the driving module (); and in the light emitting phase, the charging module () loads the first reference signal inputted from the data signal terminal (Data) to the control terminal of the driving module (), and the initializing module () connects the output terminal of the driving module () with the input terminal of the light emitting device () so that the driving module () drives the light emitting device () to emit light. The pixel circuit initializes the driving module () and the light emitting device () in the initialization phase, which eliminates the influence of the voltage difference in a previous phase on a subsequent phase, provides a compensating voltage and a driving voltage for the driving module () in the writing phase, which avoids the influence of change of the threshold voltage on the light emitting luminance of the light emitting device (), so that the quality of the display picture is ensured.

Pixel circuit and method for driving a light emitting device and organic light emitting display panel

A pixel driver circuit includes a driving transistor Tconnected in series to a light-emitting element, a capacitor C, a first end of which is connected to a gate electrode of Tand a second end of which is connected to a source electrode of T, and a charging circuit at least including a current source and configured to charge C at a charging stage. Within at least a part of time period of the charging stage, an intensity of a charging current for charging C is greater than an intensity of a target current, and after the charging stage, a voltage difference across C is equal to a target voltage difference. When the light-emitting element emits light at a preset brightness value at a light-emitting stage, the target voltage difference is a gate-to-source voltage difference of Tand the target current is a current flowing through T

Pixel driver circuit, display device and pixel driving method

The embodiment of present disclosure provides a pixel driving circuit and a driving method thereof and a display device, which can improve the undesirable phenomena of uneven display luminance of a display caused by a threshold voltage. The pixel driving circuit comprises a light emitting unit and at least one driving unit. The driving unit comprises a driving module, a compensation module and an initialization module. The light emitting unit is connected to the driving unit, a high level signal terminal, a low level signal terminal and a first signal terminal; the driving module is connected to the light emitting unit, a second signal terminal, the compensation module and the initialization module, respectively; the initialization module is connected to the light emitting unit, the driving module, the compensation module, an initial voltage terminal and a fourth signal terminal; the compensation module is connected to the driving module, the initialization module, a reference voltage terminal, a scanning signal terminal, a data voltage terminal and a third signal terminal. The driving unit further comprises a first driving unit and a second driving unit for alternately driving two adjacent frames of image.

Growing community of inventors

Beijing, China

Zuquan Hu