The capacitive touch screen is plated with long and narrow electrodes on the four sides of the touch screen to form a low-voltage AC exchange broadcasting station in the conduction. When the screen is touched, due to the electric field of the human body, a coupling capacity is formed between the finger and the conductor layer. The current of the four-sided electrode flows to the contact point, and the current intensity is proportional to the distance from the finger to the electrode. After touching the screen, the controller calculates the current ratio and weakness, and correctly determines the position of the touch point. The double glass of the capacitive touch screen can not only protect the conductors and sensors, but also prevent external environmental factors from affecting the touch screen. Even if there is dirt, dust and oil on the screen, the capacitive touch screen can correctly calculate the touch position.
The capacitive touch screen is plated with long and narrow electrodes on the four sides of the touch screen to form a low-voltage AC exchange broadcasting station in the conduction. When the screen is touched, due to the electric field of the human body, a coupling capacity is formed between the finger and the conductor layer. The current of the four-sided electrode flows to the contact point, and the current intensity is proportional to the distance from the finger to the electrode. After touching the screen, the controller calculates the current ratio and weakness, and correctly determines the position of the touch point. The double glass of the capacitive touch screen can not only protect the conductors and sensors, but also prevent external environmental factors from affecting the touch screen. Even if there is dirt, dust and oil on the screen, the capacitive touch screen can correctly calculate the touch position.
The capacitive touch screen is plated with long and narrow electrodes on the four sides of the touch screen, and forms a low-voltage AC exchange broadcasting station in the conduction. When the screen is touched, due to the electric field of the human body, a coupling capacitance is formed between the finger and the conductor layer. The current of the four-sided electrode will flow to the contact point, and the current intensity is proportional to the distance between the finger and the electrode. After the touch screen, the controller calculates the current ratio and weakness and accurately determines the location of the touch point. The double glass of the capacitive touch screen can not only protect the conductors and sensors, but also prevent external environmental factors from affecting the touch screen. Even if there is dirt, dust and oil on the screen, the capacitive touch screen can correctly calculate the touch position.
