With the continuous emergence of various new technologies and new products, our requirements for the efficacy and performance of products are also getting higher and higher. For example, automobiles, with the continuous improvement of the level of in-vehicle information and entertainment equipment, the types and number of in-vehicle display screens have gradually increased. Today, it is no longer a simple mobile tool, but is providing valuable time and space for users. "Change of direction.
A car is composed of powertrain, electronic device, safety device, interior and exterior accessories, etc. composed of engine and transmission. The car display screen is a very important device accessory for the car. Follow Xiaoxing today to learn about the types and characteristics of car displays!
Changes in car instrumentation (Cluster)
Instrumentation is the most important device that provides the driver with the information he needs. It is also called "Cluster" because it displays various information such as vehicle speed, engine speed (RPM), mileage, fuel status, and whether the operation is normal or not in one space.
Automotive instrumentation is mainly divided into traditional "analog instrumentation" and "digital instrumentation" using a display screen. Analog gauges display relevant information by physical movement such as speedometer needle movement, while digital gauges display relevant information graphically on the display.
Compared with the analog type, the design of the digital instrument is more flexible, and the information such as map and vehicle can be displayed on the instrument screen at the same time, and the usability is higher. Due to the characteristics of the display, digital instruments should use a display with high visibility so that a clear picture can be seen even in strong sunlight.
Research is also underway on transparent gauges, which are meant to display gauge information on a car's windshield, rather than through a gap in the 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 relieve the boring and dull mood in driving and is a representative entertainment device. The world's first car radio was born in 1929, and its brand name "Motorola" consists of two parts, "Motor" represents the car, and "ola" is taken from the hand-cranked phonograph "Victrola", and later "Motorola" became the company name.
The in-vehicle entertainment equipment that started from the radio has gone through the stages of in-vehicle tape players, CDPs, and MP3 players. Now we can use Bluetooth and other methods to connect in-vehicle entertainment facilities with smartphones to play music in real time, or use connected software such as Android Auto to use functions such as listening to music and real-time navigation. With built-in AVN, the display screen that displays and controls the operation of various in-vehicle equipment is called CID (Center Information Display).
AVN installations mostly use 7-inch or 8-inch displays. Tesla, an electric car company, adopted a 17-inch display in the ModeI S, and took the lead in introducing a large-screen CID (Center Information Display), and installed various control buttons on the display panel, establishing an image of a cutting-edge product. 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 console (center fascia).
At the SID (Society for Information Display) exhibition held in May this year, Samsung Display launched an in-vehicle CID with flexible display technology. The rollable CID is a product that combines Samsung's flexible OLED technology. The size of the display screen can be adjusted according to the roll degree, and it is divided into three sizes: 9 inches, 11.8 inches, and 14 inches. Not only that, but it can also initiate navigation, listening to music, surfing the web, and more with just a touch.
Also on display, the 12.4-inch S-shaped Curved CID features a wavy shape to fit the new trend of vehicle design emphasizing the beauty of elegant curves. The resolution of this product is as high as 1200×1920 (182ppi), the maximum brightness is 800nit, and the picture quality is very good.
In addition, Samsung Display showcased innovative products for installing displays on the steering wheel. The 6.22-inch non-fragile steering wheel (Steering wheel) display designed to avoid secondary damage to the driver 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 standard of automotive interior materials and operates normally.
"Virtual rear-view mirror" brings innovation to side-view mirrors
On October 3, Samsung Display announced that it will provide 7-inch OLED displays for Audi's electric sports utility vehicle e-Tron. The e-Tron is Audi's first pure electric vehicle to be mass-produced and sold. Its innovative "Virtual Exterior Mirrors" function has received widespread attention before it was officially launched.
A Samsung OLED display is placed on the left and right sides of the dashboard, and used with the camera, it can replace the traditional side mirrors. This function can make the field of view wider, thereby effectively reducing blind spots, and ensuring a clear field of vision even in cloudy or dimly lit environments. In addition, it improves fuel efficiency and reduces 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 visual solution. And its color reproduction ability is very good, the response speed is extremely fast, there is no smear phenomenon even in low temperature environment, and the image is natural and clear.
Features and Prospects of Vehicle-mounted Displays
In-vehicle display screens are very important in automotive devices. They are not only used frequently during vehicle driving, but also provide assistance to drivers. Therefore, high-performance vehicle-mounted 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 give the driver a wider view. After the height of the dashboard is lowered, devices such as AVN or CID are raised on the dashboard, so the exposure to 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. In this regard, it has many similarities with the use environment of PID (Public Information Display). The vehicle operating environment includes low temperature and high temperature. Under low temperature or high temperature conditions, the display screen is delayed or unresponsive, which may cause serious accidents.
Third, high resolution. In the past, people thought that the audio-visual distance of the car display screen was far, and it was occasionally seen while driving, so the resolution was less important. After the resolution of smartphones exceeds 500ppi (pixel per inch), the public's requirements also increase. With the improvement of on-board graphics performance and the development of large-scale display screens, the necessity of high resolution is gradually highlighted.
At present, most cars on the market use on-board 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. Using the car display in combination with the camera, in addition to being beautiful, can also achieve the purpose of replacing side mirrors. 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 market research firm HIS Markit, the shipment of vehicle-mounted displays in 2000 was 30 million units, and the annual shipments in 2020 are expected to exceed 200 million units. The popularity of navigation has brought about the explosive growth of in-vehicle displays, and the popularization of 5G communication networks and autonomous driving technology will also bring huge changes to the industry in the future.
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