A kind of optical detection method of panel

Abstract

The invention discloses an optical detecting method of a panel. The optical detecting method of the panel comprises the following steps: step 1, providing a panel to be detected and a detecting device, wherein the detecting device is provided with a pre-crimping station and an optical detecting station; step 2, pre-crimping the panel mentioned in the step 1 at the pre-crimping station; step 3, judging whether the panel needs to enter the optical detecting station or not according to a pre-crimping signal in the step 2, outputting the panel from the detecting device if the pre-crimping signal is a first crimping signal, and transferring the panel to the optical detecting station if the pre-crimping signal is a second crimping signal; and step 4, performing optical detecting on the panel entering the optical detecting station in the step 3 or transferring the panel entering the optical detecting station in the step 3to a downstream station. The optical detecting method of the panel disclosed in the invention can accurately perform pre-aligning and pre-crimping operations on the panel, and accurately align and crimp the panel with a circuit board, so that the optical detecting deviceaccurately detects the panel.

Description

technical field [0001] The invention relates to the technical field of display panel detection, and relates to an optical detection method of a panel. Background technique [0002] In the manufacturing process of various display panels such as TFT, LTPS, AM-OLED, etc., it is necessary to perform optical inspection on the display panel, such as checking whether the panel has defects such as color unevenness (mura), bright and dark spots, etc. [0003] Optical inspection is a commonly used inspection method for glass substrates and other substrate materials and semi-finished products in the liquid crystal industry. Generally, an optical inspection instrument is used to scan the inspected substrate to obtain a scanned image of the inspected substrate, and then analyze the scanned image to determine whether there is a defect in the inspected substrate and the exact location of the defect. However, when testing a display panel without a backlight, it is necessary to light up the...

AI Technical Summary

Problems solved by technology

Alignment crimping of the circuit board and the display panel requires high precision. At present, the alignment crimping is mainly done manually, which is time-consuming and labor-intensive; The accuracy of the head itself and the accuracy of alignment have put forward higher requirements, and the existing alignment crimping technology is difficult to meet the requirements

More importantly, the quality of incoming materials cannot be judged in advance during manual inspection, which leads to a waste of inspection time for defective products; in addition, after the optical inspection is completed, the inspection results need to be manually recorded, resulting in low panel inspection efficiency

Images