Pixel circuit and driving method thereof, display device and driving method thereof

Abstract

The invention provides a pixel circuit and a driving method thereof, a display device and a driving method thereof, and relates to the display technology field for reducing voltage loss. The pixel circuit comprises an energy storage module, a drive module, a display module and a reset module. The energy storage module is connected to a first scanning signal line, a data signal line, a first voltage terminal and the driving module for storing data signal input by the data signal line under the control of the first scanning signal line; the drive module is connected to a second scanning signal line and the display module for driving the display module to display pictures under the control of the second scanning signal line; the display module is connected to the first voltage terminal and a second voltage terminal for displaying the pictures under the control of the drive module and the second voltage terminal; the reset module is connected to a third scanning signal line, the data signal line and the display module for outputting reset signal input by the data signal line to the display module under the control of the third scanning signal line to reset the voltage in the display module.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit and a driving method thereof, a display device and a driving method thereof. Background technique [0002] With the development of display technology, people's requirements for the display effect of the display device are gradually increasing. However, when the display device displays moving images, during the period when the first frame image and the second frame image are partially overlapped, the flicker phenomenon that occurs has a great impact on the display effect. Therefore, it has always been a hotspot of research by those skilled in the art. [0003] A display device is provided in the prior art, and the display device includes a plurality of pixel units arranged in an array, such as figure 1 As shown, each pixel unit includes a first transistor TFT1, a second transistor TFT2, a first capacitor C1, a second capacitor C2, and a liquid crystal ca...

AI Technical Summary

Problems solved by technology

From this, it can be deduced that Vd'=(C×Vd+Cp×Vp) / (C+Cp), since the polarity of Vp is opposite to that of Vd, Vp will offset Vd, so a considerable voltage loss will occur

In addition, when the polarity of Vp is opposite to that of Vd, it is necessary to increase C to ensure normal display, and as C becomes larger, TFT1 used to charge C1 will also become larger, which will cause sub-pixel The loss of opening ratio is large

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