A kind of glue dispensing method for small aperture playground type hole for touch display screen

Abstract

The invention discloses a glue dispensing method for a small-aperture playground-shaped hole on a touch screen, comprising the following steps: calculating the coordinates of the rotation center of a stage in a camera coordinate system; calculating the upper and lower sides of the playground-shaped hole on the touch screen The center coordinates and radius of the two circles in the camera coordinate system; calculate the deviation angle between the line between the two circle centers and the Y axis; the center of the lower circle fits the rotation center of the carrier, and according to the above Deviation angle and eliminate the deviation angle; select the center of the lower circle as the tool setting point coordinates of the dispensing machine, and divide the dispensing path segment; calculate the coordinates of the dispensing path after the interpolation point in the dispensing coordinate system; the dispensing machine The dispensing operation is performed according to the dispensing path after the interpolation point. The technical scheme of the invention improves the dispensing accuracy of the playground-shaped holes of the touch screen, and is suitable for dispensing machines with different precisions.

Description

technical field [0001] The invention relates to the technical field of small-hole dispensing, in particular to a method for dispensing glue for small-aperture playground-shaped holes of a touch screen. Background technique [0002] In order to realize that the touch display screen can take into account the diversity and beauty of digging holes for taking pictures and glass panels, in addition to round holes, the digging holes of the touch display screen used by smartphone manufacturers need to gradually support digging holes of various shapes. Among them, the process of glass and backlight is closer to the mass production standard with the playground hole. In order to realize the final mass production of the display module, it is necessary to seal the glass hole to prevent light leakage from the backlight. [0003] However, due to the small inner diameter of the playground-type digging hole itself, which is about two tangent circles of 1.1 mm, when the size of the entire dis...

AI Technical Summary

Problems solved by technology

[0003] However, due to the small inner diameter of the playground-type digging hole itself, which is about two tangent circles of 1.1 mm, when the size of the entire dispensing machine is too large, due to the accuracy of the machine, the actual dispensing path will deviate too much Big

If the mechanism precision of the machine itself is improved in order to ensure the dispensing accuracy, the cost of the machine will be greatly increased.

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