With the continuous development of the automobile industry, vehicle configurations are also constantly upgraded, and the display screens inside the vehicles have also undergone great changes. OLED automotive displays have attracted more and more attention in recent years. It is not only used in ordinary family models, but also has become standard equipment in high-end models. So, what exactly is the breakthrough in OLED automotive displays? Next, I will analyze the product characteristics.

 

1. Composition characteristics of OLED automotive display

 

OLED (organic light-emitting diode) displays are made from synthetic organic materials. It can emit light by itself, does not require a rear light source, and the display screen is very obvious, which requires high performance requirements such as color restoration, immediacy, black purity, brightness, and contrast. OLED display screen consists of several important parts such as luminescent layer, conductive layer, isolation layer and substrate.

 

1. Luminous layer

 

The luminescent layer is the most important component of the OLED display. Generally speaking, according to different principles, it can also be divided into: charge transfer OLED and Jujia solid-state light-emitting OLED. Jujia solid-state light-emitting OLED is a new type of OLED light-emitting mode. Since there is no electron transmission process, it has a longer service life and lower driving voltage. It can also reduce the layer thickness of the material and achieve refined design.

 

2. Conductive layer

 

The conductive layer is the second largest part of an OLED display. It is mainly responsible for supplying power to the light-emitting layer and can also act as an electron injection layer. Usually, the conductive layer is composed of ITO (transparent conductor) or metal compound. In 2021, the sales volume of ITO film layers in OLED displays will be as high as 73.6%. The company's larger market competitors include JX Nippon Mining & Metals, AGC, etc.

 

3. Isolation layer

 

The isolation layer protects the light-emitting layer and the conductive layer, and also acts as a heat and oxygen barrier to avoid material oxidation and energy loss. At the same time, the isolation layer can also promote electron injection and increase visual effects such as brightness and contrast of the OLED display.

 

4. Substrate

 

The substrate is the fourth part of the OLED display. It is mainly used to achieve the OLED display's visual requirements for image details, resolution, clarity, and grayscale. The substrate market is dominated by liquid crystal glass. For example, in 2017, sales of Fuli film glass accounted for 70% of the total sales in the LED backlight and OLED markets.

 

2. Product characteristics of OLED automotive display

 

1. Super high color restoration rate

The colors displayed on ordinary LCD screens are always affected by the color temperature of the light source, resulting in unrealistic colors. However, because OLED automotive displays have their own light source, the color temperature will not affect the color restoration rate and can truly restore various colors.

 

2. Very high contrast ratio

 

The OLED display uses self-luminous printing, which can achieve very high brightness and accurately control the black level. The depth of black levels is not affected by the brightness of any LED backlight, so OLED displays have very high contrast ratios.

 

3. Significant energy saving advantages

 

The image display of the OLED display must obtain energy from the energy provided by the internal elements, rather than obtaining large amounts of energy from external light like traditional LCD displays. This means that every time an OLED display generates an image, it consumes very little power. Therefore, in terms of energy consumption, OLED automotive displays are far superior to traditional automotive LCD displays.

 

4. Longer service life

 

Generally speaking, traditional LCD displays have a service life of 5-7 years, while OLED displays can usually have a service life of more than 10 years, or even more than 20 years. This is because the organic self-luminous components in OLED displays can make Monitors have a very long service life.

 

3. Development prospects of OLED automotive displays

 

As an emerging display technology, OLED displays are not only widely used in mobile devices such as smartphones and tablets, but are also gradually entering the automotive industry.

 

Cars equipped with OLED displays have superior imaging and driving experience. Not only can car owners get a more realistic and vivid display effect, but they can also ensure the response speed and stability of the driving system while driving, further improving driving safety.

 

Moreover, we pay more and more attention to the interactive experience inside the car, such as the multimedia screen of the entertainment system, driving information and navigation system, etc. Therefore, as OLED technology continues to mature and become more popular, its application in the automotive industry will become more and more widespread, and there is still great potential that can be further explored and explored.

 

In short, as a new display technology, OLED automotive display has significant product characteristics, including color reproduction rate, contrast, energy saving and service life. It can greatly improve the reliability, safety and driving experience of cars, and create a safer and better travel environment for people.