Detection device of thin film transistor-liquid crystal display (TFT-LCD) substrate

Abstract

The invention provides a detection device of a thin film transistor-liquid crystal display (TFT-LCD) substrate, which comprises a machine main body, a circuit board, a plurality of motors and a plurality of probes, wherein the circuit board is arranged on the machine main body, the plurality of motors are arranged on the machine main body, the plurality of probes are arranged on the motors, the motors and the probes are in one-to-one correspondence, the circuit board comprises a programmable logic controller and a human-computer interaction terminal, the human-computer interaction terminal is electrically connected with the programmable logic controller, the plurality of motors and the plurality of probes are electrically connected with the programmable logic controller, the plurality of probes are arranged correspondingly to the positions of a panel detection signal input ends of the TFT substrates of different sizes, and the programmable logic controller is used for driving the probes to rise and fall by the motors. The motors are used for controlling and driving the probe corresponding to the TFT substrate to be tested to rise so as to complete detection of the TFT substrate, therefore, the detection requirements of the TFT substrates of different sizes can be met, time of replacing a detector in the prior art is saved, production cost is reduced, and the risk of collision generation during replacing the detector in the prior art is avoided.

Description

technical field [0001] The invention relates to a TFT-LCD (thin film transistor liquid crystal display) array substrate detection technology, in particular to a probe structure of a TF-LCD substrate detection device. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates, and control the liquid crystal molecules to change direction through whether the glass substrates are energized or not, and refract the light from the backlight module to produce a picture. [0003] Usually, a liquid crystal display panel consists of an upper substrate (...

AI Technical Summary

Problems solved by technology

[0007] However, both the lifting detector and the clamping detector have the following defects: one detector can only pressurize a TFT substrate of one size

Since the TFT pressure points of TFT substrates of different sizes are different, this requires that the positions of the probes on the corresponding blocks are different. Therefore, for TFT substrates of different sizes, the Array Checker series equipment needs to replace the detectors. And re-confirm the contact status between the probe and the TFT substrate and the voltage output status. This will not only waste production line time, increase the load on the production line, but also easily replace the wrong detector, and there will be a risk of collision during the process of changing the detector.

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