In many applications, we have contacted some customers need ultra-low temperature touch screen, to be used with the entire product in special environments, such as cold areas, aerospace equipment, or pharmaceutical refrigeration and other equipment, usually these products need to be used in the working environment of minus 40 ° C. Combined with the customer's needs, WIWOTOUCH hereby introduces a low-temperature minus 40 ° C touch screen solutions.
Touch display need to work in -40°C environment, usually need to overcome the problems are:
1. The working temperature of ordinary industrial capacitive touch screen is usually in the range of -20℃～70℃. The operating temperature of automotive capacitive touch screen is usually -30 ℃ ~ 85 ℃, if it is used in a lower temperature environment, the low water vapour content on the skin surface of the palm, poor electrical conductivity, so that the performance of the sensor is affected, resulting in the industrial tablet PC can not be very good recognition of the touch position and touch failure.
2. As the temperature decreases, the viscosity coefficient of liquid crystal molecules will also increase, resulting in a weaker response force of liquid crystal molecules, and the image cannot be displayed normally.
From the requirements of wide temperature technology, after continuous testing and research by the R & D team, designed to increase the derivative module, to avoid the impact of low-temperature environment on the components, the successful launch of low-temperature minus 40 ℃ touch screen solution.
This solution is equipped with TFT display, can meet the -40 ° C environment, stable work, combined with capacitive touch mode, response speed <20ms, touch zero delay, while the touch screen uses the full lamination technology, making the operation more sensitive, faster response, to meet the needs of the complex operation in a low-temperature environment.
WIWOTOUCH products support ODM/OEM full range of customisation, including cover, screen, use of the environment, interface, etc., can support size: 3.5 "≤ size ≤ 32".
At the same time, the touch display module products comply with industrial-grade standards, passed the high and low temperature operation test, high and low temperature storage test, constant temperature and humidity test, temperature shock test, vibration test, drop test, salt spray test, steel ball impact test, ESD test and other reliability tests of a number of stringent tests to ensure the stability and reliability of the product.