Abstract:
The present invention provides a driving circuit of pixel unit and a driving method thereof, and a display device. The driving circuit of pixel unit is configured to drive sub-pixel units on a display panel, and comprises a driving power supply signal port connected to the sub-pixel units through power supply signal lines and at least one compensation unit. The driving power supply signal port is configured to transfer a driving voltage output from the driving power supply to each of the sub-pixel units through the power supply signal lines. The compensation unit is configured to perform real-time compensation on voltage drops on the power supply signal lines when the sub-pixel units display different gray levels.
Abstract:
A compensation circuit of IR drop of a display system, the display system having m pixel circuits, the compensation circuit comprising: m current comparators composed of TFT devices, wherein each current comparator is configured to compare the input current signal with a reference current signal and output a voltage signal according to the comparison result; m encoders composed of TFT devices, wherein each encoder is configured to encode the voltage signal into a digital voltage signal to output; a controller which is configured to calculate a difference value between the digital voltage signal and an ideal digital voltage signal and generate a digital difference signal; m compensation voltage generators each of which is configured to convert the digital difference signal into a compensation voltage signal, and write the compensation voltage signal into a corresponding pixel circuit according to control of a timing control signal; and a driver IC.
Abstract:
Provided are a pixel driving circuit, a driving method, an array substrate and a display apparatus. The pixel circuit comprises: a data line, a gate line, a first power line, a second power line, a reference signal line, a light emitting device, a driving transistor, a storage capacitor, a reset unit, a data writing unit, a compensation unit and a light emitting control unit. The pixel driving circuit can compensate and eliminate the display nonuniformity caused by the threshold voltage difference of the driving transistors.
Abstract:
The present disclosure provides a gate driving circuit which can be applied in a display panel. The gate driving circuit may include a driving signal output unit, provided with a storage capacitor; a driving control unit, configured to sample an input signal in a first period of each scanning cycle, control the driving signal output unit to output a first gate driving signal which is configured to turn on thin film transistors (TFTs) in a display panel in a second period of each scanning cycle, and control the driving signal output unit to output a second gate driving signal which is configured to turn off the TFTs in the display panel by using the storage capacitor across which a voltage difference is within a predetermined range in a third period of each scanning cycle; and a compensating unit, configured to maintain the voltage difference across the storage capacitor to be within the predetermined range in the third period of each scanning cycle.
Abstract:
There provide a pixel driving circuit and driving method thereof, an array substrate and display apparatus, wherein the pixel driving circuit comprises: a data line; a gate line; a first power supply line; a second power supply line; a light emitting device connected to the second power supply line; a driving transistor connected to the first power supply line; a storage capacitor having a first terminal connected to a gate of the driving transistor and configured to transfer information including the data voltage to the gate of the driving transistor; a resetting unit configured to reset a voltage across the storage capacitor as a predetermined signal voltage; a data writing unit configured to write information including the data voltage into the second terminal of the storage capacitor; a compensating unit configured to write information including a threshold voltage of the driving transistor and information of the first power supply voltage into the first terminal of the storage capacitor; and a light emitting control unit connected to the storage capacitor, the driving transistor and the light emitting device, and configured to control the driving transistor to drive the light emitting device to emit light.
Abstract:
A pixel circuit, a driving method, and a display apparatus, wherein the pixel circuit includes: a first switch transistor having a source connected to a data signal terminal, and a gate connected to a first control signal terminal; a first capacitor having a first terminal connected to a drain of the first switch transistor; a second capacitor having a first terminal connected to a second voltage signal terminal, and a second terminal connected to a second terminal of the first capacitor; a third capacitor having a first terminal connected to the first control signal terminal, and a second terminal connected to a gate of a driving transistor; a second switch transistor having a source connected to the gate of the driving transistor, a drain connected to a drain of the driving transistor, and a gate connected to the first control signal terminal; and a third, fourth, fifth and sixth switch transistors.
Abstract:
Provided are a pixel circuit and an organic light-emitting display. The pixel circuit comprises a driving thin film transistor and a light-emitting diode which is connected between a low level input terminal and a high level input terminal of a driving power supply in series, the pixel circuit further comprises a first capacitor and a driving control unit, a first terminal of the first capacitor is electrically connected with a first electrode of the driving thin film transistor through the driving control unit, a second terminal of the first capacitor is connected with a gate of the driving thin film transistor, a second electrode of the driving thin film transistor is electrically connected with the gate of the driving thin film transistor through the driving control unit, the driving control unit is connected with a gate line and a data line. Since respective pixel circuits may output uniform currents, the brightness of light-emitting diodes in the pixel circuits is uniform, and in turn the display brightness of the organic light-emitting display comprising the pixel circuits is uniform.
Abstract:
An array antenna module is provided, which includes a feed structure, a phase shift structure, and a radiation structure. The feed structure is connected to the phase shift structure, and the phase shift structure is connected to the radiation structure. The feed structure, the phase shift structure, and the radiation structure are all disposed on a glass substrate.
Abstract:
Provided is a liquid crystal display panel. The liquid crystal display panel includes: a first substrate and a second substrate that are opposite to each other, and a liquid crystal layer between the first substrate and the second substrate. The liquid crystal display panel includes a plurality of sub-pixel regions. Each of the plurality of sub-pixel regions includes 4N sub-pixel sub-regions arranged in a single column, and the 4N sub-pixel sub-regions are organized into one group, or a plurality of groups that are adjacent to each other. A same group of sub-pixel sub-regions includes two first sub-regions and two second sub-regions. N is an integer greater than or equal to 1.