Circular display module fitting method

Abstract

The invention discloses a circular display module fitting method which includes the steps: grabbing a first characteristic mark and a first circular profile of a circular fitting part, and confirminga circle center by the first circular profile; grabbing a second characteristic mark and a second circular profile of a circular display module, confirming a circle center by the second circular profile, enabling the position of the first characteristic mark to correspond to that of the second characteristic mark, and adjusting the plane position and the rotating direction of the circular fittingpart and the circular display module in an aligned manner according to the first characteristic mark, the second characteristic mark and the circle centers. According to the method, the circular fitting part and the circular display module can be accurately aligned by one characteristic mark, repeatedly moving of a lens is omitted, aligning and assembling efficiency can be greatly improved, influence of straight lines such as screen printing lines can be omitted, aligning accuracy can be greatly improved, and more design spaces can be reserved as the method only needs one characteristic mark.

Description

technical field [0001] The invention relates to the field of assembly of display modules, in particular to a bonding method for circular display modules. Background technique [0002] The bonding method of the existing circular display module and the circular touch screen / cover is generally as follows: firstly fix the circular display module and the circular touch screen / cover respectively on the bonding device, and then use the CCD lens to align the circular display module and the circular touch screen / cover. The circular display module and the circular display / cover are photographed to assist in alignment, and finally they are bonded together. [0003] When the circular display module and the circular touch screen / cover are aligned, the center of the circle is generally confirmed by grabbing the circular outline of the circular display module and the circular touch screen / cover, and then grabbing the circular display module The angle between the circular display module an...

AI Technical Summary

Problems solved by technology

[0004] However, this method needs to capture two feature marks, and the lens needs to be moved to the two feature marks respectively. The movement is more, resulting in slow equipment beats and low bonding efficiency; the smaller the shape of existing electronic products, the more competitive they are , the wiring is relatively compact, and there is no extra space to design the position of the feature mark, and if there are more feature marks, the wiring position will be smaller, which will bring many difficulties in the design; if the circular display module and the circular touch screen / cover When the board has straight lines such as silk screen lines, glass cutting edges, or circuit board outlines, this method confirms the angular relationship between the circular display module and the circular touch screen / cover by grabbing these lines, but the silk screen lines or circuit board outlines Straight lines are easy to deform. After zooming in with the lens, it can be observed that these straight lines are deformed, and the glass cutting edge is also easy to cut poorly, so it is easy to have a large calculation angle error, which affects the lamination accuracy.

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