Detection apparatus for glass substrate

Abstract

The invention belongs to the technical field of liquid crystal display and discloses a detection apparatus for a glass substrate. The detection apparatus comprises an air floating platform, a conveying device, a rotating device and a detection device. The detection apparatus is characterized in that the air floating platform is configured to support a to-be-detected glass substrate in an air floating manner; the conveying device is configured to convey the to-be-detected glass substrate to move the to-be-detected glass substrate along the air floating platform; the rotating device vertically penetrates through the air floating platform and can ascend and descend relative to the air floating platform; the rotating device is configured to adsorb the to-be-detected glass substrate and drive the to-be-detected glass substrate to rotate; and the detection device is erected on the air floating platform and is configured to detect the to-be-detected glass substrate before and after the rotation of the to-be-detected glass substrate. With the detection apparatus adopted, the glass substrate can be rotated when the glass substrate is in a suspension state, so that the switching of the longedge and short edge of the glass substrate can be realized, and therefore, the scanning detection of the glass substrate in two directions (a long edge direction and a short edge direction) is realized; and the surface of the glass substrate can be prevented from being scratched in the rotating process. The detection apparatus is suitable for flexible and hard glass substrates.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a detection device for a glass substrate. Background technique [0002] In TFT-LCD (Thin film transistor-liquid crystal display, thin film transistor liquid crystal display), LTPS (Low Temperature Poly-silicon, low temperature polysilicon) liquid crystal display, AM-OLED (Active-matrix organic light-emitting diode, active matrix organic In the manufacturing process of various display panels such as light-emitting diode panels), after the laser molecular annealing of the glass substrate, it is necessary to check whether there are defects such as color unevenness (mura), bright and dark spots on the glass substrate. [0003] When inspecting the glass substrate, it is necessary to transfer the glass substrate to the inspection position. At present, it is mainly carried out by using belts or rollers to support the lower surface of the glass substrate and then driving ...

AI Technical Summary

Problems solved by technology

Although the glass substrate rotating device ensures that the surface of the glass substrate does not have any contact with the rotating device when rotating, and avoids scratches on the surface of the glass substrate, the rotating device uses the driving rod to clamp the glass substrate to rotate the glass substrate. Its structur

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