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“Advancing” car projection display, why is domestically produced LCOS a new solution?

Latest update time:2024-05-30
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With the development of the automobile industry, in-vehicle displays have also undergone rounds of changes, from the initial mechanical instrument panels and electronic LCD screens to today's central control touch screens, driver and co-driver high-definition entertainment screens, and HUD (head-up display). In-vehicle displays are showing a more diversified development trend.

It is worth mentioning that driven by the wave of intelligence, in-vehicle projection display has received more and more attention, and has formed multiple popular application scenarios such as HUD, smart headlights, and in-cabin projection. Among them, HUD is the most familiar and also the most widely used application scenario. It can project key driving data such as speed, navigation instructions, warning information, etc. directly onto the windshield, thereby reducing the time the driver's eyes are away from the road.

Compared with traditional dashboards, HUD has greatly improved driving safety and convenience. It has become an indispensable key configuration for modern smart cars and has a great impact on consumers' car purchasing choices.

01

Several common solutions for vehicle projection display


Obviously, in-vehicle projection displays represented by HUD have great development potential, but for most consumers, they are both "familiar" and "unfamiliar." They are familiar because the application scenarios are very common, and they are unfamiliar because few people understand the differences between in-vehicle projection displays.

Yes, there are different solutions for in-vehicle projection display, such as DLP, LBS, micro LED, micro OLED, LCOS, etc. Naturally, there are big differences between different solutions.

Due to its high brightness, high contrast and mature technical system, DLP has a certain market share in vehicle head-up displays (HUD) and some high-end vehicle projection applications. DLP is suitable for scenarios that require high-quality image display, but at this stage it also has problems such as high price, complex system structure, and high power consumption. In addition, the solution is developed by Texas Instruments and will be limited to a single supplier from a supply chain perspective.

LBS is a laser scanning projection solution, which has the advantages of high brightness, long life and low energy consumption, and has broad prospects, but it has a large gap in clarity and contrast.

MicroOLED and micro LED are also cutting-edge technologies. The former combines the advantages of OLED display technology, such as self-luminous properties, high contrast, fast response time and wide viewing angle, but its structure is more complex and the brightness is lower. At the same time, when facing the vibration and temperature changes in the vehicle environment, its durability and stability will be greatly affected. Therefore, only small-scale mass production has been achieved, and the yield rate is not high. In contrast, micro LED has better stability and durability in long-term use, long life and good brightness, but unfortunately it has not yet matured, limiting its possibility of large-scale commercial use in the short term.

LCOS is a new type of reflective micro-display technology, which is similar to or even better than DLP in contrast and FOV (viewing angle). In addition, LCOS devices have high resolution, small size, light weight, and low power consumption, making them suitable for integration into small spaces in vehicles, such as HUD, instrument panel, and center console, which helps to achieve a more integrated design.
It is also worth noting that LCOS technology is not restricted by a single supplier and has few patent restrictions. Many domestic manufacturers have demonstrated positive R&D progress and innovation capabilities in the field of LCOS technology, which further enhances their competitiveness in the market. Compared with DLP solutions, LCOS has greater flexibility and autonomy on the supply side, providing strong support for technological innovation and industrial upgrading in the industry.
We mentioned earlier that HUD is one of the important application scenarios in the field of in-vehicle projection. At present, HUD is mainly classified into C-HUD, W-HUD, and AR-HUD. Among them, W-HUD is the mainstream in the market, but in the long run, AR-HUD is booming .
Compared with other HUD types, AR-HUD can project navigation arrows directly onto the road to display navigation information such as turn directions and remaining distances; at the same time, it can also provide real-time safety warnings, such as collision warnings and lane departure warnings, which can significantly improve the intuitiveness and reaction speed of driving, thereby enhancing the driving experience and improving driving safety. LCOS technology is particularly suitable for AR-HUD because it can achieve clear, bright and colorful image projection, and has certain advantages in power consumption and heat dissipation, which also means that it has a wider application prospect in the field of in-vehicle displays.

02

Leading the world in LCOS, why are domestic solutions the best solution?


Seeing this, I believe everyone has some understanding of the in-vehicle projection display solution. It can be said that DLP, LBS, and LCOS have good performance in market performance and future development expectations, especially LCOS, which has long-term development potential and is the only choice for in-vehicle projection display.

As mentioned earlier, domestic manufacturers have been active in deploying LCOS technology and have achieved remarkable results and progress. Among them, Xindingwei is a representative company in this field.

Xindingwei is a professional optoelectronic semiconductor chip company in China and also a world-leading LCOS new micro-display solution provider. In the field of LCOS, Xindingwei has independent chip design, production, LCA/LCM production and manufacturing bases, and independently masters liquid crystal filling, liquid crystal module assembly and optical machine production. In addition, in addition to tape-out, Xindingwei can complete the application development and production of LCOS products in one stop, and has the ability to provide high-quality, cost-effective services to global customers.

Relying on the company's all-round strength in chip design and manufacturing, as well as its profound scientific research accumulation in the new LCOS micro-display technology, Xindingwei has emerged in the market competition, and its LCOS technology solutions have also demonstrated strong competitiveness.

Specifically, the Xindingwei LCOS solution is currently the only fully digital LCOS technology in the world, and the only solution in the world that can achieve field color sequential 4K LCOS technology. There are several points worth noting here. The first is "the only one in the world", which is self-evident. Then it is fully digital, which means that compared with traditional LCOS technology, the Xindingwei LCOS solution no longer involves the process of analog signal processing, which can further improve image quality and stability and achieve more accurate image display.

Finally, 4K resolution display is achieved through field color sequence. Field color sequence is a display technology that synthesizes full-color images by quickly displaying red, green, and blue monochrome images in sequence. This solution can reduce the need for color filters, thereby improving brightness and contrast.

In addition, thanks to the fully digital design, the iChip LCOS solution has the characteristics of small size, high speed, low power consumption, and strong editability, making it more suitable for vehicle-mounted display platforms.

In terms of technology , the iCore LCOS solution adopts the original Q-View technology. Through small pixel design, optimized transmission algorithm and image processing technology, it achieves high-resolution display, low bandwidth requirements and low power consumption, while maintaining good scalability and being able to adapt to display requirements of different resolutions (such as 1080p, 1440p, 4K, 8K resolution). Therefore, in addition to in-vehicle HUD, iCore LCOS technology also has a wider range of application scenarios in AR/MR smart glasses, smart projectors and laser TVs.

At the same time, the LCOS technology of Xindingwei also uses vertically aligned nematic (VAN) liquid crystal and SiOx inorganic alignment film . VAN liquid crystal provides higher contrast and wider viewing angle, while the use of SiOx inorganic alignment film enhances the durability and reliability of the product in high light environments. Even in the face of harsh lighting conditions, the image can remain vivid and clear.

In summary, Xindingwei's LCOS technology covers chip design, liquid crystal array process (LCA), liquid crystal module (LCM) assembly, optical engineering and packaging (OE), etc., forming a complete industrial chain, providing customers with one-stop services from chip design to final product application.

It is particularly worth mentioning that Xindingwei has deep experience and accumulation in the field of in-vehicle display. With the continuous development of automobile intelligence and autonomous driving technology, in-vehicle display systems are gradually changing from traditional instrument panels to high-definition, large-screen, and multi-functional central control screens. With the high-definition, high-contrast, and low-power characteristics of its LCOS technology, Xindingwei has shown great application potential in the field of in-vehicle display.

In terms of in-vehicle applications, Xindingwei's LCOS technology can provide display solutions of various sizes to meet the needs of different models and in-vehicle space. At the same time, through cooperation with many well-known automobile manufacturers, Xindingwei continues to gain a deeper understanding of customer needs and industry trends, and continuously improves and optimizes its LCOS technology to meet the strict requirements of in-vehicle display systems for high definition, high reliability, low power consumption, etc. Its efficient production process and cost control capabilities make Xindingwei's in-vehicle display solutions also competitive in price, providing automobile manufacturers with a more economical and efficient choice.

at last:

As an important application scenario for smart cars, in-vehicle projection display has always faced the challenge of how to achieve higher definition, wider viewing angle, better brightness and wider color gamut in a limited space. As a new type of projection technology, LCOS technology has brought new solutions to the field of in-vehicle display, and Xindingwei's active exploration of LCOS technology has opened up a new path for the development of in-vehicle projection display. At the same time, it also provides a new option that is both efficient and economical for the development of global smart cars, which helps to accelerate the iteration and upgrade of in-vehicle display technology.

Looking to the future, we also look forward to seeing domestic LCOS technology represented by Xindingwei gain wider application and recognition. At the same time, we also hope that more industry participants will join in and jointly promote the development of the entire industry.

END

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