Etching line roller, etching transmission line and etching device

Abstract

The invention provides an etching line roller, an etching conveying line and an etching device, and relates to the technical field of etching equipment. The etching line roller comprises a wheel shaft and a plurality of wheel sheets, and the wheel sheets are arranged on the wheel shaft at intervals and are symmetrically distributed relative to the center line of the wheel shaft; and the diameters of the wheel sheets in the direction from the center line of the wheel shaft to the two ends of the wheel shaft are sequentially decreased. The etching conveying line comprises the etching line roller; and the plurality of etching line rollers are horizontally arranged in parallel at intervals along the conveying direction. The etching device comprises the etching conveying line, an upper side spraying device arranged on the upper side of the etching conveying line, and/or a lower side spraying device arranged on the lower side of the etching conveying line. By improving the structure of the etching line roller, the conveying surface of the etching conveying line is a convex surface, so that the middle of the metal mask is higher than the two sides of the metal mask during on-line conveying, liquid medicine directly flows away to the two lower sides and cannot be gathered, and the'pool effect 'is thoroughly avoided.

Description

technical field [0001] The invention relates to the technical field of etching equipment, in particular to an etching line roller, an etching transmission line and an etching device. Background technique [0002] At present, as display technologies such as organic light-emitting diodes (OLED, Organic Light Emitted Diode) and active matrix organic light-emitting diodes (AMOLED, Active-matrix organic light-emitting diode) are becoming more and more mature, metal masks are used to prepare OLEDs. The important components of this kind of display panel have gradually become the products that various upstream manufacturers are vying for layout. [0003] Patterns on metal masks are generally made by etching. When the metal mask is processed by the chemical reaction in the developing machine and the etching machine, the liquid is easy to gather in certain positions in the metal mask and cannot flow away (that is, the "pool effect" often referred to in the industry), which eventually...

AI Technical Summary

Problems solved by technology

[0006] In view of the unsatisfactory solution to the existing "pool effect" problem, in order to improve the product quality of the above-mentioned metal mask, it is urgent to find a new solution to the above-mentioned "pool effect" problem

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