With the improvement of technical level, LCD began more and more as a configurable display device in automotive applications.As the main user interface, how to select them in order to assure proper performance becomes very important.Car of the complexity of the information system and information density in the growing, which makes the car interior is no longer just basic concentration meter display, but to meet the demand of increasingly detailed and diversification of the vehicle information display.


At present, the market for high resolution can also display text and graphics display demand rapid growth.Passive matrix LCD (TN - or the STN LCD LCD) and active matrix LCD (TFT LCD) are used to convey information is very important for the driver of the basic driving (such as a speedometer and odometer, engine warning light, driving wheel load or 4 wd light adjustment system and the fuel gauge, etc.).In addition to the main information, and some secondary information such as external temperature indicating, audio information display and seat heating, air conditioning control instructions, etc.Display system need to further extend into two areas: on the basis of traditional information display and rear entertainment system for the central console of audio and video display.Electronic vehicle display technology is not a new thing, in the early 1980 s began to applied to the dashboard.Usually, can display the icon and text of TN LCD can satisfy the main application of automobile electronic information display, such as the speedometer and odometer, etc.In addition, you can through to the TN - LCD glass substrate for fine grinding in order to achieve the purpose of improvement, making the background color will not change along with the change of visual Angle and temperature, facilitate the passengers and the driver according to the need to look at the central console display information.

In the mechanical structure of the environment like car dashboard scheduling information display, for designers the challenge is more and more big.First of all, the designer/developer must know, from a LCD manufacturers, under the condition of actual driving whether can work normally, and the LCD manufacturers have according to their own in the process of research and development of strict standards tested.Second, must be in the same space inside LCD display more and more information.Car manufacturers in Europe and Japan a few years ago, has started using medium size (2 ~ 3 inches) of information display, be used to improve performance and bring fun to drive.European car manufacturers are now in the sales pick up 3 inches color TFT - LCD car.In the next few years, they will want to be able to choose according to the grade of the car display system and relevant sizes.In order to meet these requirements, people developed specifically for automotive application ASTN (auto super twisted sequence) - LCD, according to each car environment to provide the most suitable contrast and background color.The monitor also has a wide working temperature range, and configurable ASTN - LCD permits the combination in various occasions.

In the next few years, in the dashboard and the trend of the TFT - LCD near the dashboard could accelerate.To meet the market for wide Angle, high contrast and super low temperature performance requirements, is currently assessing various TFT - LCD, and OLED technology.OLED technology is the next generation of display technique, by does not require a backlight illuminated pixels.The technology provides a clear, bright full motion image display, can from different angles.In addition, provide quick response time, OLED displays under various lighting conditions and high brightness, low power consumption and light-weight design choices.In fact, the single color OLED displays have begun to be used for the production of automobile, such as grand Cherokee jeep and Chevrolet Corvette.This kind of small molecule passive matrix display, can meet the environmental requirements, before the brightness dropped to 80% of the original brightness can work for 30000 hours.


In the north American market, VFDS (vacuum fluorescent display) is very popular for a long time, because they have excellent brightness can guarantee good visibility.But with the rise of OLED, VFDS are lost.Because, by contrast, the former has a finer resolution spacing (pixels), more attractive appearance, better electrode structure design flexibility, greater visibility and excellent color images, and more importantly OLED contains no lead.