Mask net stretching method and device and mask

Abstract

The invention discloses a mask net stretching method and device and a mask. The mask net stretching method comprises the steps as follows: presetting a coordinate system on a net stretching platform;placing a mask frame on the net stretching platform to obtain first actual positions of first aligning points in the coordinate system; correcting the position of the mask frame to obtain corrected positions of the first aligning points in the coordinate system; obtaining compensation parameters according to the corrected positions and the first actual positions of the first aligning points; connecting mask units with the mask frame to obtain second actual positions of second aligning points in the coordinate system; performing position compensation on the second aligning points according tothe compensation parameters to obtain compensated positions of the second aligning points; and correcting positions of the mask units according to the compensated positions of the second aligning points and the corrected positions of the first aligning points. According to the mask net stretching method of the embodiment, efficiency of the net stretching assembly process is improved.

Description

technical field [0001] The invention relates to the field of mask plates, in particular to a method for stretching a mask plate, a device for stretching a mask plate and a mask plate. Background technique [0002] Organic Light-Emitting Diode (OLED) display panels are widely used in mobile phones, televisions, personal digital assistants, digital cameras, Various consumer electronic products such as notebook computers and desktop computers have become the mainstream of display devices. [0003] During the production process of the OLED display panel, organic materials need to be vapor-deposited on the substrate, and a fine metal mask (Fine Metal Mask, FMM) is usually required in the vapor deposition process. Before FMM is used, the mask unit (mask strip) needs to be connected to the mask frame. This process needs to be carried out on the stretching device, that is, the process of stretching and assembling is required. [0004] In the existing net stretching device, a multi...

AI Technical Summary

Problems solved by technology

Each mask usually includes a mask frame and a plurality of mask units. In addition to the need to drive the stretching platform for translation or rotation when aligning the mask frame, each time the mask unit is aligned It is also necessary to drive the stretching platform for translational or rotational movement, so that the process of mask stretching and netting assembly takes too long for the alignment operation, reducing production efficiency

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