On December 24, 2020, OPPO's new generation of Reno series new machine: Reno5 Pro+ was officially released. In addition to the IMX766 sensor jointly developed with Sony and the Snapdragon 865, Reno5 Pro+ has another black technology available for the first time: flexible electrochromic film.
OPPO Reno5 Pro+ teamed up with well-known artist Joshua Vides to launch the artist's limited edition mobile phone "Colorful Fantasy". The electrochromic technology of SZGY Optoelectronics Technology Group on the mobile phone not only allows users to customize the color of the back cover of the mobile phone to achieve the effect of thousands of scenes and thousands of colors, but also can superimpose and composite multiple technologies on the basis of electrochromic to effectively achieve the The human-computer interaction function of the cover, such as by gently tapping the back cover of the phone, can not only change the color of the phone, but also change the color of the associated mobile phone. The back cover of the electrochromic phone can also display functions such as incoming calls, message notifications or health prompt the user accordingly.
This not only achieved an innovative breakthrough in the appearance of mobile phones, but also subverted people's perception of the back cover of mobile phones. OPPO Reno5 Pro+ has become the first consumer-grade electrochromic product, which means that electrochromic technology has moved from academia to industry and then to the masses of consumers.
Electrochromic technology is called "EC technology" in the industry. Its principle is that under the action of an external electric field, ions in the electrochromic layer will be injected or extracted, and the passed charge can change the composition of glass molecules, thereby generating a variety of Gorgeous colors, thereby achieving the purpose of color change.
In fact, electrochromic technology is not a new thing. Since the "oxygen vacancy color center" theory was put forward in 1969, electrochromic technology has been active in academia for more than 50 years.
Based on its features such as dimming, comfort and safety, this technology is applied to discoloration of Boeing 787 aircraft portholes, and is also commonly used in products such as exterior walls of high-end buildings and automobile rearview mirrors. But when this technology is used in consumer electronic products, it is a very difficult challenge. The main reason is the high cost of materials and processes.
At the beginning of this year, OnePlus released a Concept One concept phone. The highlight is the use of compressed electrochromic glass and only consumes 2-3mAh of battery in one hour. At the end of this year, OPPO released the mass production machine Reno5 Pro+ equipped with a new flexible electrochromic technology.
The electrochromic technology companies that the two mobile phone manufacturers cooperate with are SZGY. They use electrochromic materials developed by SZGY that match the new film coating process. It can be seen that the company achieved mass production of flexible electrochromic film products within one year.
The mass production in one year comes from more than ten years of deep cultivation. The SZGY team has been deeply involved in electrochromic technology for more than 10 years and is committed to the development and production of flexible smart films. At present, through independent research and development, the company has mastered the world's exclusive electrochromic materials, all-solid electrolytes, optical film processing and device manufacturing technologies, and has applied for more than 90 related patents worldwide.
The flexible electrochromic film products developed by SZGY can not only turn ordinary glass into dimmable and color-changing smart glass, but also have ultra-low haze, wide-range color change, 1.2V low-voltage operation, and multiple steady-state-off With the characteristics of electrical memory, stepless dimming, and based on the characteristics of the film, it can support any curvature, multiple sizes, and multiple colors. The shortcomings of the original EC technology have been made up, making it widely used in mobile phones.
In addition, SZGY's electrochromic technology and products have been implemented in different industries, providing a large amount of verification data and experience accumulation for its realization of mass production in the consumer electronics industry. SZGY cooperates with leading players in the automotive and construction industries [Tesla, Apple, Fuyao Glass, SAIC…] to provide automotive self-dimming rearview mirrors, sunroofs and windows, electrochromic ski goggles, Building colored glass and other products.
SZGY realized the commercial production of electrochromic film this year, and passed the most difficult technological breakthrough. In addition to continuing to launch terminal products in the future, the SZGY R&D team will continue to conduct basic research on the underlying technology, and plan to enter aerospace, biomedical and other fields, and expand the technology application to more industries.