摘要:
The present invention discloses a pixel drive circuit, an array substrate, a display device and a pixel drive method. The pixel drive circuit may include a drive unit, a switch unit, a threshold voltage compensation module and a light-emitting device, the threshold voltage compensation module is connected to a scan signal line, a first control line, a second control line, a second power supply and the switch unit, respectively, the light-emitting device is connected to the second power supply and the threshold voltage compensation module, respectively, the drive unit is connected to a first power supply and the threshold voltage compensation module, respectively, and the switch unit is connected to the scan signal line and a data signal line, respectively; and the threshold voltage compensation module includes a threshold voltage holding unit, an anti-interference unit, an auxiliary gating unit and a charge-and-discharge control switch unit.
摘要:
The invention provides an array substrate, a display device and a driving method thereof. The array substrate comprises a plurality of gate lines and data lines, the gate lines and the data lines define a plurality of pixel units arranged in an array, each of which comprises a common electrode and a pixel electrode, wherein the common electrodes of at least part of the pixel units are formed as touch driving electrodes, at least part of the data lines are formed as touch sensing electrodes, wherein the touch driving electrodes and the touch sensing electrodes are insulated from each other; the touch driving electrodes are applied with common voltages during a display period, and are applied with touch scan signals during a touch period; and the touch sensing electrodes are applied with data signals during the display period, and generate and output coupling signals during the touch period.
摘要:
Provided are a shift register unit, a gate driving circuit and a display device, wherein the shift register unit includes: a pull-up module connected to a clock signal line and a signal output terminal; at least two pull-down modules both connected to a low level signal line and the signal output terminal; a control module connected to the pull-up module and the pull-down modules, for controlling the pull-up module to be turned on, so that the pull-up module outputs a high level signal input from the clock signal line to the signal output terminal, and for controlling the at least two pull-down modules to be turned on alternatively, so that the at least two pull-down modules output a low level signal input from the low level signal line to the signal output terminal, and for controlling one of the at least two pull-down modules to be turned on while controlling the other pull-down modules of the at least two pull-down modules to be discharged. The shift register unit can reduce over-bias of a gate of a pull-down TFT effectively, thus improving stability of the shift register unit.
摘要:
The invention provides a touch sensing circuit and method, a touch screen and a display device, the touch sensing circuit comprises: a touch sensing unit, an output control unit and a detection unit; the touch sensing unit is configured for providing a touch current, and transmitting the touch current to the output control unit; the output control unit is connected with a second control line, a read-out line, the touch sensing unit and the detection unit, for outputting the touch current to the detection unit; the detection unit is connected with a reference voltage terminal, an output terminal, the read-out line and the output control unit, for detecting significant change in the voltage output by the output control unit, thereby determining the location where the touch occurs. The detection accuracy of the detection sensing circuit in determining the occurrence of touch is improved.
摘要:
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.
摘要:
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.
摘要:
A pixel driver circuit includes a driving transistor T1 connected in series to a light-emitting element, a capacitor C, a first end of which is connected to a gate electrode of T1 and a second end of which is connected to a source electrode of T1, 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 T1 and the target current is a current flowing through T1.
摘要:
The present disclosure provides a pixel driver circuit, a pixel driving method, a pixel circuit and a display device. The pixel driver circuit includes a touch element connection unit connected between a touch element and a second end of a storage capacitor, a diving control unit connected between a gate electrode of a driving transistor and the second end of the storage capacitor, a first power voltage application unit connected between a second electrode of the driving transistor and a first power line, a touch detection unit connected between a touch detection line and a first electrode of the driving transistor, and a threshold compensation control unit configured to receive a reference voltage and connected to the gate electrode of the driving transistor and the second end of the storage capacitor.
摘要:
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.
摘要:
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.