Промислові сенсорні дисплеї, як випливає з назви, зазвичай використовуються в промислових дисплеях, і промислове середовище дуже тепло. У цей час необхідний широкий дисплей температури. Промислові сенсорні дисплеї пройшли ретельне тестування і можуть стабільно працювати в умовах високих і низьких температур.
At present, the most widely used in the field of industrial touch displays are resistive touch screens and capacitive touch screens. But in harsh environments, it will be adversely affected. The working principle of the capacitive screen is to use the touch sensor to induce a voltage on the conductor on the screen, thereby generating a relative current, and measuring the touch point by distance. In the case of low temperature, the skin surface of the hands has low moisture content, and the dry and cold skin has poor conductivity. At the same time, when the ambient temperature is low, the performance of the sensor will also be affected, and the industrial touch display cannot recognize the touch position well, causing the touch screen to malfunction. The operating temperature of the touch screen is usually between -5 degree and 60 degree , especially in winter, the northern area is more affected.
The resistive touch screen is less affected. On the one hand, because of the different processes used, the micro-circuit on the touch screen is connected to work, which is weakly affected by the temperature. On the other hand, the technological level of the resistive screen is relatively mature, and the materials used are all able to withstand the test and continue to be used. The temperature of the resistive screen is required to be between -20 degree 65 degree , which can meet most of the use environments.
In addition, industrial touch displays include infrared touch screens and surface acoustic wave screens.
The accuracy of the infrared touch screen is completely free from current, voltage and static electricity interference, and is suitable for various environmental conditions with light pollution. However, the infrared touch screen is limited because of its single sensor, easy to be damaged and aging, and the touch interface cannot withstand pollution, destructiveness, and complicated maintenance. When the temperature is extremely low, the static electricity generated during the use of industrial displays tends to attract dust, thereby affecting the use. Suitable for use in the aerospace field.
It shows that the sonic touch screen has extremely high definition, the light transmittance can reach 92 percent , the anti-scratch, abrasion performance is also the best, the response is sensitive, and the accuracy is completely unaffected by environmental factors such as temperature and humidity. In contrast, the cost of construction and maintenance are also high. Surface acoustic wave screens need frequent maintenance. If dust, oil stains or even liquids are contaminated on the surface of the touch screen, the wave guide groove on the surface of the touch screen will be blocked, causing the sound wave to not be emitted normally or causing the waveform to change and the controller cannot recognize it correctly. Therefore, strict attention must be paid to environmental hygiene, and the surface of the touch screen must be wiped frequently to keep it smooth and clean, and a complete and thorough erasure must be performed regularly. If the surface of the sonic screen condenses or gets oily in winter, it will be quite troublesome to clean.
Resistive screens and capacitive screens that can be widely recognized after all have their advantages to be recognized. Touch think smart touch device, support customization, the most mature ten-point touch capacitive screen is selected by default, and 5-wire resistive touch screen is optional.
The surface acoustic wave has high clarity and good light transmittance. Highly durable, good scratch resistance (has a surface film relative to resistors, capacitors, etc.). Responsive. Not affected by environmental factors such as temperature and humidity, high resolution, long life (50 million times under good maintenance); high light transmittance (92 percent ), can maintain clear and bright image quality; no drift, industrial rugged display only It needs to be calibrated once during installation; there is a third axis (ie pressure axis) response, which is currently used more in public places.
Although the wide temperature display can adapt to a wide temperature range, we also need to pay attention to it during use. Due to geographical reasons, the temperature difference between north and south is large, and targeted protection measures are needed to ensure the normal use of industrial touch displays.
