Processing method for air vent on display panel

Abstract

A processing method of a display panel exhaust hole comprises: setting a mark printing head coordinate of a laser unit and moving the laser unit to the mark printing stand-by position; loading the substrate on the transmission device composed of loading portion, an arranging processing portion and an exhaust portion, and judging whether the substrate entering into a processing table configured onthe arranging processing portion; descending the arranging processing portion to release the contact with the substrate when confirming the substrate enters into the processing table, meanwhile, floating the substrate; arranging the floating substrate to the center of the processing table and judging whether the central arranging of the substrate is finished; releasing the floating state of the substrate after stopping the central arranging of the substrate, fixing the substrate on the processing table by the vacuum adsorption; starting the dust collecting portion to collect the dust when illuminating the laser to the processing position of the substrate through the laser unit to process the exhaust hole; releasing the vacuum adsorption to the substrate after finishing the processing of the exhaust hole, driving the arranging processing portion to raise so as to make the substrate contact with the transmission device; exhausting the substrate through the transmission device and judgingwhether the substrate base line is passed.

Description

technical field [0001] The present invention relates to a method for processing air vents on a display panel, in particular to non-contact processing using a laser, thereby improving the processing efficiency of the air vents, and at the same time eliminating substrate friction when aligning the substrates. method. Background technique [0002] Generally speaking, PDP (Plasma Display Panel) is the panel of the display part of the plasma display device. Gases such as neon gas are sealed in the gap between two thin glass substrates, and the inner surface of the glass substrate is horizontally The transparent electrodes are arranged in the direction and the vertical direction. [0003] In the manufacturing process of the above-mentioned PDP, when two glass substrates are bonded, it is necessary to process an exhaust hole in one of the glass substrates in advance in order to discharge the gas remaining inside. [0004] In the past, most of the vent holes were machined by diamo...

AI Technical Summary

Problems solved by technology

[0004] In the past, most of the vent holes were machined by diamond mechanical drilling. However, this processing method that directly contacts the glass substrate is not precise enough, and the vibration generated may damage the glass substrate and form a hole in the vent hole processing part. Burr (burr), and the formation of burr can cause cracks and breakage during heat treatment in the PDP manufacturing process

[0005] In addition, when the air vent is formed by mechanical drilling, a lot of glass powder dust will be generated, which not only deteriorates the working environment, but also requires a washing process, which makes it difficult to realize the enlargement of the display panel and the introduction of multi-faceted method.

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