Why should the car LCD screen be resistant to high and low temperatures?

With the development of display technology and manufacturing industry, automotive multimedia is becoming more and more diversified, and the application of LCD screen in the car in more and more forms. From the traditional center control multimedia navigation system to the rear entertainment system, and even now even the instrument panel and rearview mirror have begun to be replaced by the LCD screen. The car LCD screen, and we usually use the cell phone and computer LCD screen is not the same. Car LCD screen requires the ability to work in very extreme temperatures.

1.why the car LCD screen should be resistant to high and low temperatures

First of all, the working environment of the car is relatively complex. Whether morning and evening or spring, summer, fall and winter, whether in different regions around the world, the car is required to be able to work. Cars in the summer will often have the sun, the temperature of the car can be as high as 60 degrees, the car's electronic components must be able to work normally with the car. And in some northern regions, winter is very cold, ordinary LCD screen can not work. These times need to resist high and low temperature LCD display, for the car owner to display driving information, escort.

2.the international safety test standards

According to the national standard mandatory provisions, all parts of the car need 10 days of testing, you can fully detect the performance of the test device is good or bad.

Which for the car LCD, ISO automotive electronics reliability testing and related standards in the LCD test standard is this:

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) ¡ú 60 ℃ (1H), cycle five times

As you can see from this, the requirements for automotive LCDs are very high. From -40 ℃ to 105 ℃ under extreme conditions must be intact work more than 300 hours.

Third, the development of automotive LCD screen outlook

Bright LCD screen in the realization of the normal operation of the extreme temperature environment at the same time, but also need to be visible in the ultra-bright direct sunlight, waterproof. And LCD module of the GPU, display, etc. in the use of the process will heat up, the higher the resolution of the LCD screen the greater the heat. So to develop a set of hardware products to meet the conditions of the car is also a major technical challenge. For these reasons, so compared to cell phones, computers, TVs and other LCD screen resolution, car display to do relatively conservative.

Now LCD screen technology has become more and more mature, the application of car LCD screen is also more and more, LCD screen has been able to do to fully meet the car's changing working environment and work requirements. LCD screen in the automotive application of this matter, has completed a very big shift. With the development of science and technology, the development momentum of the car LCD screen will also be very rapid.

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