A screen printing alignment method of a circular substrate and a circular cover plate
A screen printing and circular technology, applied in printing, printing devices, image data processing, etc., can solve problems such as poor precision, and achieve the effect of avoiding manual visual alignment
Pending Publication Date: 2019-02-19
TRULY OPTO ELECTRONICS
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a silk screen alignment method for a circular substrate. During silk screen printing, the first feature mark and the second feature mark on the screen printing net are used for alignment by grabbing and identifying, and the silk screen printing is completed. Finally, the first characteristic mark is wiped off, which will not affect the appearance of the circular substrate, avoiding the defects of adding gaps and marks on the circular substrate that affect the appearance, and at the same time avoiding manual visual alignment, low efficiency and poor accuracy The problem
Method used
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[0029] The present invention will be described in detail below in conjunction with examples, which are only preferred implementations of the present invention, and are not limitations of the present invention.
[0030] see figure 1 , a silk screen alignment method for a circular substrate provided by the present invention, comprising the following steps:
[0031] Step 1. Provide a circular substrate and a screen printing net. The circular substrate includes a visible area and a silk screen area outside the visible area. The visible area is provided with a first feature mark, and the first feature The mark is wipeable ink, and the screen printing net is provided with a second characteristic mark corresponding to the first characteristic mark;
[0032] Step 2. Pre-position the screen printing net above the circular substrate;
[0033] Step 3, respectively grabbing the first feature mark on the visible area and the second feature mark on the screen printing net;
[0034] Step ...
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The invention discloses a screen printing alignment method of a circular substrate and a circular cover plate. At the time of silk screen printing, by grasping and identifying the first feature mark and the second feature mark on the screen for alignment, after the screen printing is finished, the first feature mark is wiped off, which will not affect the appearance of the circular substrate, thusavoiding the shortcomings of adding notches and marks on the circular substrate, and avoiding the problems of manual visual alignment, low efficiency, and poor accuracy.
Description
technical field [0001] The invention relates to the field of display module assembly, in particular to a silk screen alignment method for a circular substrate and a circular cover plate. Background technique [0002] With the development of technology, electronic products are also diversifying, such as wearable, industrial, mobile phones and so on. Its shape is also diversified accordingly, such as circle, quadrilateral, octagon or other irregular figures. These irregular graphics bring alignment problems to screen printing. Sometimes in order to improve the alignment accuracy, a compromise has to be made on the product shape, such as adding a notch on the round glass for alignment to ensure Screen printing precision. This will inevitably make the product or customers a little bit short. Previously, for round glass, when grabbing the label, the round edge was grasped. There was no alignment reference, and the accuracy between each layer of ink could not be guaranteed. Ma...
Claims
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IPC IPC(8): G06T7/73G06T1/00B41M1/12B41M1/26G09F9/00
CPCG06T1/0014G06T7/74G09F9/00B41M1/12B41M1/26G06T2207/30164
Inventor 黄世盛林汉良
Owner TRULY OPTO ELECTRONICS