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The test procedure of capacitive touch screen

Sep 12, 2023Leave a message

Many customers in the procurement of capacitive touch screen will worry about whether the product is qualified, especially the quality, as a professional manufacturer of industrial display touch screen, can guarantee that each piece of capacitive touch screen before shipment to undergo a rigorous inspection before shipment to reach the hands of customers.


Test a capacitive touch screen is good, is required to go through a series of system tests before shipping, then each touch screen manufacturers produce capacitive touch screen technical indicators are not the same, and the test software is not the same, as a professional touch screen manufacturers we are generally from IC suppliers to get the manuals and product source code, develop their own test procedures, generally to specific equipment including three kinds, one is the Computer, the second is to have a communication adapter, the third is to have a test fixture, computer and fixture are very easy to do, only the communication adapter must wait to get the development of the source code can be developed, otherwise you can not use a simple thing to do the test.


Now do product development and testing, is able to quantify the test results, but this amount is not a number, but a group or more sets of data, including is the induction range, circuit resistance value, communication, and access to short circuit, and mutual interference value and so on. It depends on how many touch matrices on the screen.


Semi-finished product testing is generally done SENSOR line conduction test, to ensure that the SENSOR good quality before hot pressing, FPC conduction test, finished product electrode test. Finished capacitive touch screen test items: accuracy, linearity, sensitivity, linearity, response speed, anti-interference ability, anti-voltage ability, high and low temperature resistance, resistance to maro, salt spray, explosion-proof crack test.


The above is a piece of capacitive touch screen before shipment must go through the inspection process. We have developed projects for thousands of customers before and after, developed more than 1,000 kinds of standard modules and thousands of custom products, providing customers with one-stop service from programme design to mass production technology, fully adapted to the market demand.

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