With the development of science and technology, from the small lcd screen of mobile phones to the large screen, so does the automotive LCD display. Everyone’s demand for the screen not only grows from small to large, but also consideration of the working environment. The automotive LCD display not only requires to work in a low temperature environment, but also requires to work in a high temperature environment. Do you know why the automotive LCD display should be resistant to high and low temperatures?
1: First, we need to understand the types of automotive display
At present, we need to know what is TFT LCD Display, the common display types include TFT (thin film transistor), which are also commonly known as “true color” screen; In addition, there is a super twisted nematic (STN) screen, which is also commonly known as the “pseudo color” screen. At present, the mainstream lcd screens are basically TFT type.
2: Why should the automotive LCD display panel be resistant to high and low temperature?
First of all, the working environment of cars is relatively complex. No matter in the morning and evening, spring, summer, autumn and winter, or in different regions around the world, cars are required to work. The car is often exposed to the sun in summer, or in the snow in the winter. The compartment temperature can be as high as more than 60 degrees in the summer, or as low as more than -30 degrees in winter. The electronic components in the car must be able to work normally with the car. In some northern regions, it is very cold in winter, and the ordinary LCD screen cannot work. At these times, we need high and low temperature resistant LCD display for car owners and escort them.
3: International safety testing standards
According to the national standard, all auto parts need 10 days of testing, which can completely detect the performance of the test device.
For automotive LCD display, the LCD test standard in ISO automotive electronic reliability test and related standards is as follows:
High temperature storage test temperature: 70 ℃, 80 ℃, 85 ℃, 105 ℃, 300 hours
Low temperature storage test temperature: -20 ℃, -30 ℃, -40 ℃, 300 hours
High temperature and high humidity test operation: 40 ℃ /90%r.h. (no condensation), 300 hours
High temperature operation test temperature: 50 ℃, 60 ℃, 80 ℃, 85 ℃, 300 hours
Low temperature operation test temperature: 0 ℃, -20 ℃, -30 ℃, 300 hours
Temperature cycle test: -20 ℃ (1H), R.T. (10min), 60 ℃ (1H), five cycles test.
It can be seen that the requirements of automotive LCD screen are very high. It must work well for more than 300 hours under extreme conditions from -40 ℃ to 105 ℃.
4: Development prospect of automotive LCD display
While the high brightness LCD display can work normally under extreme temperature environment, it also needs to be visible and waterproof under super bright direct sunlight. In addition, the GPU and screen of the LCD module will generate heat during use. The higher the resolution of the LCD, the greater the heat. Therefore, to develop a set of hardware products that meet the vehicle conditions is also a major technical problem. For these reasons, compared with the resolution of LCD screens such as mobile phones, computers and televisions, the automobile display is relatively conservative.
Now the LCD technology has become more and more mature, and the application of vehicle LCD has become more and more. The LCD can fully meet the changeable working environment and working requirements of the automotive, LCD screen has completed a great transformation in the application of automotive. With the development of science and technology, the development momentum of vehicle LCD screen will also be very rapid
We should find suitable part for any product, which is the premise to ensure product quality and product safety. The high and low temperature resistance of the automotive lcd screen is only one aspect. Of course, the automotive lcd screen is also higher than the ordinary screen in the selection of other parts. If you are interested, you can contact the RJOYTEK team, as a professional LCD display solution enterprise, our experts will tell you more and recommend appropriate solutions according to the application.
If you need any automotive lcd panel, here are some to you reference:
|3.6 inch round lcd panel||12.3 inch bar lcd panel||9.35 inch car head-up lcd display||4 inch round lcd module||10.1 inch car head-up lcd display|