Electrostatic protection circuit, display device and electrostatic protection method

Abstract

The present invention discloses an electrostatic protection circuit, a display device and an electrostatic protection method. The electrostatic protection circuit comprising: the first switch, the second switch, the third switch, the fourth switch and the fifth switch; The gate and first pole of the first switch are connected to the first signal line, and the second pole of the first switch is connected to the second signal line; The gate and first pole of the second switch are connected to the first signal line, respectively, and the second pole of the second switch is connected to the gate of the fourth switch; The gate and first pole of the third switch are connected to the third signal line, respectively, and the second pole of the third switch is connected to the gate of the fourth switch; The first pole of the fourth switch is connected to the third signal line, the second pole of the fourth switch is connected to the second pole of the fifth switch and the gate of the second switch tube; The gate and first pole of the fifth switch are respectively connected to the second signal line. Thus effectively channeling static electricity.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an electrostatic protection circuit, a display device and an electrostatic protection method. Background technique [0002] Liquid crystal display is currently the most commonly used flat panel display, and thin film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display, referred to as: TFT-LCD) is the mainstream product in liquid crystal display. [0003] In the TFT-LCD manufacturing industry, electrostatic problems directly affect the yield of liquid crystal display panels produced. Since static electricity can be generated in various ways, many processes will generate high-voltage static electricity during the manufacturing process of TFT-LCD. For example: during the rubbing process, the friction between the rubbing cloth and the display panel of the TFT-LCD will generate high-voltage static electricity. Since the high-voltage electrostatic charge i...

AI Technical Summary

Problems solved by technology

Since the high-voltage electrostatic charge is likely to break down the thin-film transistor that controls the pixel drive, resulting in the failure of the pixel drive and the poor quality of the liquid crystal display panel, it is required to release or balance the high-voltage static electricity in a timely and effective manner during the TFT-LCD manufacturing process. That is to design an electrostatic protection circuit to protect the display panel

[0004] The existing electrostatic protection circuit is usually designed between the gate line / data line (Gateline / dataline) and the common electrode line / short-circuit ring (Commonline / shortring). Thus, the working device in the display area cannot be protected

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