Array substrate and display device

Abstract

The embodiment of the invention discloses an array substrate and a display device, and relates to the field of liquid crystal display. The array substrate and the display device have the advantages that the jumping voltage of pixel electrodes is reduced, and further the picture display is more stable. The array substrate comprises the pixel electrodes, a data line, first thin film transistors and second thin film transistors, wherein the data line is used for providing a data voltage signal to the pixel electrodes, each pixel electrode is connected with one first thin film transistor and one second thin film transistor, each first thin film transistor comprises a first grid, each second thin film transistor comprises a second grid, two grid lines are arranged between the two adjacent pixel electrodes, each first grid is electrically connected with one grid line, each second grid is electrically connected with the other grid line, and each first grid and each second grid are not simultaneously cut off after a switch voltage signal is provided.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to an array substrate and a display device. Background technique [0002] Thin Film Transistor-Liquid Crystal Display (TFT-LCD for short) has the advantages of lightness, thinness, and low energy consumption, and is widely used in modern information equipment such as TVs, computers, mobile phones, and digital cameras. TFT-LCD is mainly composed of an array substrate and a color filter substrate, wherein the array substrate includes gates, data lines, pixel electrodes and thin film transistors. When the gate voltage is high, the thin film transistor is turned on, and the pixel electrode is charged through the data line; when the gate voltage is low, the thin film transistor is turned off, and the storage voltage of the pixel electrode will be maintained until the next time the thin film transistor is turned on again. [0003] The array substrate in the prior art has a single ga...

AI Technical Summary

Problems solved by technology

[0003] The array substrate in the prior art has a single-gate structure. Due to the overlap between the drain and the gate in the thin-film transistor, the thin-film transistor has a parasitic capacitance Cgd

like figure 1 As shown, when the switching voltage signal from the gate line controls the thin film transistor to turn on, the data voltage signal from the data line starts to charge the pixel electrode, and the pixel charging voltage on the pixel electrode gradually rises to the set value; when the thin film transistor is turned off At the moment when the switching voltage signal drops to a low level, the charge stored on the parasitic capacitor Cgd will change, which will cause the voltage on the pixel electrode to change, and then cause the voltage on the pixel electrode to generate a jump voltage ΔVp, causing the screen to flicker

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