Organic LED display substrate and manufacture method, and display device

Abstract

The invention discloses an organic LED display substrate and a manufacture method, and a display device. The display substrate comprises a substrate, a data line, a drive film transistor, and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitance plate and a second capacitance plate, a gate of the drive film transistor and the second capacitance plate are integral, the first capacitance plate comprises a body part and a first shield part, the first shield part extends to the middle of the second capacitance plate and the data line adjacent to the secondcapacitance plate, the first shield part can shield capacitance coupling between the second capacitance plate and the data line adjacent to the second capacitance plate, so as to reduce parasitic capacitance between the second capacitance plate and the data line. When voltage of the data line changes, voltage generated by the second capacitance plate is lowered, lowering voltage of a control electrode of the film transistor, therefore, when gray level of the pixel changes, display image abnormality is relieved.

Description

technical field [0001] The invention relates to the field of display devices, in particular to an organic light emitting diode display substrate, a manufacturing method, and a display device. Background technique [0002] An organic light-emitting diode (Organic Light-Emitting Diode, OLED) display is a mainstream display that is widely used, and has the advantages of being ultra-thin and light, and low manufacturing cost. [0003] A display panel of an OLED display generally includes an array substrate and a cover plate oppositely arranged, and a light-emitting unit is arranged on the array substrate. The array substrate includes a base substrate and a plurality of data lines and a plurality of scan lines arranged on the base substrate. The plurality of data lines and the plurality of scan lines intersect each other to define a plurality of pixel regions. Each pixel area is provided with at least one driving TFT (Thin Film Transistor, thin film transistor), a switching TFT ...

AI Technical Summary

Problems solved by technology

[0004] When the grayscale of the pixel changes, the voltage on the data line will change, and a parasitic capacitance will be formed between the capacitor plate integrated with the gate of the driving TFT and the data line. When the voltage on the line changes, it will cause the voltage of the capacitor plate to change, which will cause the gate voltage of the driving TFT to change, resulting in abnormal gray scale of the pixel, resulting in abnormal display screen

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