“With the continuous emergence of various new technologies and new products, we have higher and higher requirements for the efficacy and performance of the products. For example, with the continuous improvement of the level of in-vehicle information and entertainment equipment, the types and numbers of on-board Display screens have gradually increased. Now it is no longer a purely mobile tool, but is providing users with valuable time and space. “The direction changes.
With the continuous emergence of various new technologies and new products, we have higher and higher requirements for the efficacy and performance of the products. For example, with the continuous improvement of the level of in-vehicle information and entertainment equipment, the types and numbers of on-board Display screens have gradually increased. Now it is no longer a purely mobile tool, but is providing users with valuable time and space. “The direction changes.
A car is composed of a powertrain consisting of an engine and a transmission, Electronic devices, safety devices, interior and exterior accessories, etc. The car display is a very important device accessory for the car. Follow Xiaoqi today to learn about the types and characteristics of car display!
Changes in car instrumentation (Cluster)
The instrument is the most important device to provide the driver with the required information. Since various information such as vehicle speed, engine speed (RPM), mileage, fuel status, and normal operation are displayed in a space, it is also called “Cluster”.
Automobile instruments are mainly divided into traditional “analog instruments” and “digital instruments” using display screens. The analog meter displays the relevant information in a physical movement mode such as the movement of the speedometer pointer, while the digital meter displays the relevant information graphically on the display screen.
Compared with analog, digital instrument design is more flexible, can display map, vehicle and other information on the instrument screen at the same time, and has higher usability. Due to the characteristics of the display screen, digital instruments should use a high-visibility display screen so that a clear picture can be seen under strong sunlight.
Research on transparent instruments is also underway. Transparent instruments refer to displaying instrument information on the windshield of a car, rather than seeing it from the gap in the steering wheel (Steering Wheel). It can be said that the transparent instrument is an upgraded version of the transparent HUD that can simply display mileage information.
More than AVN (audio/video/navigation)
The radio can alleviate the boring and dull emotions of driving and is a representative entertainment device. The world’s first car radio was born in 1929. Its brand name “Motorola” is composed of two parts. “Motor” stands for automobile, and “ola” is taken from the hand-cranked phonograph “Victrola”. Later, “Motorola” became the company name.
Car entertainment equipment that started from the radio has gone through stages such as car tape players, CDPs, and MP3 players. Now we can use Bluetooth and other methods to connect car entertainment facilities and smart phones to play music in real time, or use Android Auto and other interconnected software to use functions such as listening to music and real-time navigation. The display screen with built-in AVN to display and control the operation of various on-board equipment is called CID (Center Information Display).
Most AVN devices use 7-inch or 8-inch displays. The electric vehicle company Tesla adopted a 17-inch display in ModeI S, and was the first to introduce a large-screen CID (Center Information Display). Various control buttons were installed on the display panel, establishing a cutting-edge product image. Since then, high-end car brands such as Volvo and Audi have also begun to adopt large-screen CID, or install more than two display screens in the center fascia.
At the SID (International Society for Information Display) exhibition held in May of this year, Samsung Display introduced an in-vehicle CID using flexible display technology. The rollable CID is a product that condenses Samsung’s flexible OLED technology. The size of the display can be adjusted according to the roll. It is divided into three sizes: 9 inches, 11.8 inches, and 14 inches. Not only that, it can also start navigation, listen to music, browse the Internet and other functions just by touching it.
The 12.4-inch S-shaped Curved CID exhibited at the same time adopts a wave shape to adapt to the new trend of vehicle design emphasizing the beauty of elegant curves. The product has a resolution of up to 1200×1920 (182ppi), a maximum brightness of 800nit, and excellent image quality.
In addition, Samsung Display also demonstrated innovative products that install displays on the steering wheel. The 6.22-inch non-fragile steering wheel (Steering wheel) display designed to prevent the driver from suffering secondary damage in the event of an accident is a new-generation cover glass set on a non-fragile flexible OLED substrate, which perfectly realizes the “non-fragile “Performance. The product has no damage in the crash test (speed 24.1km/h, load 6.8kg) implemented in accordance with the stability standards of automotive interior materials, and it operates normally.
“Virtual Rear View Mirror” Brings Side View Mirror Innovation
On October 3, Samsung Display announced that it will provide a 7-inch OLED display for Audi’s e-Tron, an electric sports utility vehicle. e-Tron is Audi’s first mass-produced pure electric vehicle. Its innovative “Virtual Exterior Mirrors” function has received widespread attention before it was officially launched.
A Samsung OLED display is set on the left and right sides of the dashboard, and used with the camera to replace the traditional side-view mirror. This function can make the field of view wider, thereby effectively reducing blind spots, and ensuring a clear field of view even in cloudy or dark environments. In addition, it can also improve fuel efficiency and reduce noise.
The Samsung OLED display used in the virtual rearview mirror has the characteristics of low power consumption and lightweight design, which can provide the driver with the best overall vision solution. And its color reproduction ability is very good, the response speed is extremely fast, even in the low temperature environment, there is no smear phenomenon, the image is natural and clear.
The characteristics and prospects of car display
On-board display screens are very important in automotive devices. They are not only used frequently during vehicle driving, but also provide assistance to the driver. Therefore, high-performance on-board display screens must have the following characteristics:
First, the brightness is high. The latest trend in vehicle dashboard design is to lower the height to make the driver’s field of vision more open. After the height of the dashboard is lowered, devices such as AVN or CID will bulge on the dashboard, so the impact of sunlight will gradually increase. Especially in order to prevent the display screen from being projected on the windshield, LCF (Light Control Film) is usually attached, which will reduce the brightness, so the brightness of the display itself should be high.
Second, it has good low temperature and high temperature resistance. At this point, it has many similarities with the use environment of PID (Public Information Display). The operating environment of the vehicle includes low temperature and high temperature. Under low or high temperature conditions, the display screen delays or does not respond, which may cause serious accidents.
Third, high resolution. In the past, people thought that the viewing distance of the car display was relatively long, and occasionally looked at it while driving, so the resolution was not important. After the resolution of smartphones exceeds 500ppi (pixel per inch), the public’s requirements have also increased. With the improvement of in-vehicle graphics performance and the development of large-scale display screens, the need for high resolution has gradually become prominent.
At present, most cars on the market use car-mounted displays with a resolution of 100-150ppi, but high-end cars have begun to adopt 150-200ppi, and its penetration rate is expected to exceed 20% by 2024. Combining with the camera to use the car display, in addition to being beautiful, it can also achieve the purpose of replacing the side-view mirror. At this time, the picture quality of the car display should be better than that of the traditional mirror, so high resolution will still be one of the main features of the car display in the future.
According to data from the market research organization HIS Markit, the shipments of in-vehicle displays in 2000 were 30 million units, and the annual shipments are expected to exceed 200 million units around 2020. The popularization of navigation has brought about explosive growth of on-board display screens, and the popularization of 5G communication networks and autonomous driving technologies will also bring huge changes to the industry in the future.