Resistive touch screen is often used in the industrial control machine industry, like industrial panel pc, android pc, industrialist monitorial and other products, will use resistive touch screen, of course, there are capacitive touch screen.
Today COMPT small editor will talk to you about the linking process of resistive touch screen . A resistive touch screen, there are four terminals. Through the soft PCB board, connected to the four sides of the glass plate, through the four sides of the resistance formed by the voltage divider, you can get the surface of the corresponding position of the touch point.
1. Measurement results
First of all, one of the biggest problems encountered is how to connect the interface of the touch screen. Since it is a carbon film pin, it was originally crimped onto the circuit board, but now we need to make a crimp adapter board to connect the pins of the interface. The following design of the connection of the adapter board, the use of one-minute board method, the production of four adapter boards, and then use the glue to achieve the crimp.
2. Connection test
The adapters are aligned with the connector and then crimped together. For fixing, this fast UV curing adhesive is used. However, without pressure, the connector is not effectively connected to the interface.
The connector is pressed together with a crystal and cured externally with the UV curing adhesive. This maintains a pressure on the connector.
Measurements showed that one of the pairs of connectors was securely connected, but the other pair of connectors was not making good contact. A white adhesive tape was used to bind the connectors, but one pair was still not securely connected. Finally, we use heat shrink tubing to compress the other pairs of connectors, and after the heat shrink tubing cools down, the other pairs of connectors remain connected normally.
This paper documents the process of connecting the resistive touch screen interface externally, using an adapter plate, connecting the carbon film interface, using external pressure to ensure that the interface is reliably connected. More information about the resistance touch screen can be collected on our website.
Penny
Web Content Writer
4 years of experience
This article is edited by Penny, the website content writer of COMPT, who has 4 years working experience in the industrial PCs industry and often discusses with colleagues in R&D, marketing and production departments about the professional knowledge and application of industrial controllers, and has a deep understanding of the industry and products.
Please feel free to contact me to discuss more about industrial controllers. sales@gdcompt.com
