37results about How to "Eliminate afterimage phenomenon" patented technology

The invention provides a GOA circuit and a liquid crystal display device. The GOA circuit comprises multiple gate drive modules used for inputting scanning signals into a scanning line. Each gate drive module comprises a GOA unit used for providing initial scanning voltage, and an output control unit connected with the corresponding GOA unit and used for eliminating ghost shadows of the liquid crystal display device, wherein the output control unit comprises a first control branch used for controlling the corresponding gate drive module to output switching scanning voltage related to the initial scanning voltage, and a second control branch used for controlling the corresponding gate drive module to output switching scanning voltage unrelated to the initial scanning voltage. According to the GOA circuit and the liquid crystal display device, the output control units are additionally arranged at an output end of an existing GOA unit, so that the ghost shallow phenomenon is eliminated, and a display effect is improved.

The present disclosure relates to a field of display technology, and particularly to a pixel circuit and a method for driving the same. The pixel circuit includes a driving sub-circuit, a resetting sub-circuit, and a charging sub-circuit, wherein the driving sub-circuit includes a driving transistor, a first transistor, a third transistor, a first storage capacitor and a second storage capacitor; the resetting sub-circuit discharges the first storage capacitor and the second storage capacitor under the control of a first scan signal outputted from the first scan signal line; and the charging sub-circuit includes a fifth transistor and a sixth transistor. With the pixel circuit of the present disclosure, non-uniformity of driving transistors caused by threshold voltages of the driving transistors and an image sticking phenomenon caused by drifts of the threshold voltages of the driving transistors may be eliminated through the compensation; and the problem of non-uniform luminance among the light emitting devices in different pixel units of an Active Matrix Organic Light Emitting Diode Display caused by different threshold voltages of the driving transistors in the different pixel units may be avoided.

The present invention relates to the field of display technology, and discloses a pixel drive circuit, including: data lines, gate lines, first power lines, second power lines, reference signal lines, light emitting devices, drive transistors, storage capacitors, reset units, data Write unit, compensation unit and light emission control unit. The invention also discloses a driving method, an array substrate and a display device. The pixel driving circuit of the present invention can compensate and eliminate display unevenness caused by the threshold voltage difference of driving transistors.

A method for quickly eliminating the shutdown afterimage of LCD includes receiving control signal, comparing the first with the second reference voltage, and outputting start signal to the controller of LCD power supply and fast discharge circuit for fast discharge if the first reference voltage is less than or equal to the second one. Its circuit is composed of manual selector, automatic detector, selection switch, fast discharge circuit and controller of LCD power supply.