Measuring and welding device for OLED mask

Abstract

The invention relates to a measuring and welding device of an OLED (Organic Light Emitting Diode) mask plate, comprising a measuring unit used for measuring the shape and appearance of an object to be measured, and a fixing unit used for fixing an object to be fixed on other objects, wherein the measuring unit comprises a metal mask plate surface shape measuring subunit and a metal mask plate precision measuring subunit; the metal mask plate surface shape measuring subunit is a height sensor, a dial indicator or a three-coordinate measuring head; the metal mask plate precision measuring subunit comprises a CCD (Charge Coupled Device) camera and an optical lens; the fixing unit is a laser welder; the measuring unit and the fixing unit are both controlled by a control system; and the measuring and welding device is fixed on a movement mechanism which is capable of making the measuring and welding device move in six dimensional orientations relative to the measured and welded mask plate. According to the measuring and welding device, mask plate quality detection at the later period of OLED mask plate production and mask plate fixation are integrated into a whole mechanism, machine station space occupation is reduced, operating complexity is lowered, labor cost is saved, and the production period of OLED mask plates is shortened.

Description

technical field [0001] The invention relates to a mechanical device, in particular to a measurement welding device for an OLED mask plate. Background technique [0002] OLED's self-illumination, ultra-thin, fast response, wide viewing angle, low power consumption and other characteristics make mobile phones equipped with OLED screens very popular. At present, OLED has preliminarily established its position as the leading core of the third-generation display. With the maturity of technology and the breakthrough of large-scale mass production process, OLED products will be extended to larger sizes. [0003] Vacuum mask evaporation is the main method for preparing the OLED light-emitting layer. The material used for the OLED mask is an Invar alloy with a very low thermal expansion coefficient. Usually the thickness of the mask is only 40 μm, with millions of tiny of rectangular pixels. Since the color OLED using three-primary-color light-emitting materials needs to use severa...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a measurement welding device, which can solve the problem that the quality inspection and fixing operation steps of the OLED mask are complicated and seriously affect the production efficiency in the prior art. The main purpose of the present invention is to fix the quality inspection and mask Realize multiple integration

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