Pixel driving circuit, driving method, display panel and display device
A technology of a pixel driving circuit and a driving method is applied in the fields of driving methods, display panels and display devices, and pixel driving circuits, and can solve the problems of uneven display brightness of the display device, affecting the display effect of the display device, etc., and achieve good display effect and work. The current remains stable and the display brightness is uniform
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[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0043] As described in the background art, unlike liquid crystal display devices that use stable voltage to control brightness, organic light-emitting diode display devices are current driven and require a stable current to control light emission. However, due to the process and device aging, the threshold voltage Vth of the driving transistors of multiple pixel driving circuits will be inconsistent, which causes the current flowing throu...
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