The surface of the capacitive touch screen is stained with water, which is a common thing in people’s lives. Generally, wipe off the water and the touch will be accurate.
But many times the surface of the touch screen will often have water droplets, and its working environment is different. According to the many years of experience of Hongxiao touch screen manufacturers,
This problem is not only as simple as wiping off water droplets. The specific analysis is as follows:
1. First, analyze the object of water droplets on the capacitive touch screen, how big the water droplets are, how big the area is, whether it is flowing, the ambient temperature, or the water mist, how conductive, whether there are fingers in the water, these objects must be clearly explained , The established mathematical model can restore the object to be dealt with. As for the most fundamental solution, it is the problem of the chip.
2. The touch IC on the capacitive touch screen also has a waterproof design in hardware, such as cypress and synaptics.
3. The capacitive touch screen contains N first touch sensors and N second touch sensors, where N is a natural number, and a first touch sensor and a second touch sensor form a rectangular sensor symmetrically Unit; according to the relative change of the capacitance of the first touch-sensing Sensor and the second touch-sensing Sensor to locate the position of the touch point in the X-axis direction, and locate the touch point in the Y-axis direction according to the capacitance changes of multiple sensing units The X-axis direction is the wide-side direction of the capacitive touch screen, and the Y-axis direction is the long-side direction of the capacitive touch screen. Since the sensing unit is rectangular, and the relative change trend of the capacitance of the first touch sensing sensor and the second touch sensing sensor is symmetrical, the calculation is more accurate, and the capacitive touch screen can more accurately locate the touch point.
Operate the capacitive touch screen with water and gloves
Therefore, there is no need to be too entangled in the problem of water on the capacitive touch screen. End users can take the method of changing the screen. Customized customers only need to request the supplier to make the capacitive touch screen waterproof design and specify the IC model during production, while the current capacitive touch screen is generally used. , Our company can achieve waterproof touch screen and explosion-proof touch screen during production, and can achieve touch with water and touch with gloves. Mainly used in vehicle Internet, industrial control equipment, query all-in-one machine, smart home, wearable market, etc.
