This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl.
At the OPPO Innovation Day event in Shenzhen, OPPO unveiled its latest concept of a transformative smartphone, the OPPO X 2021.
It is a novel design that physically expands and contracts the screen by storing a rollable display inside the phone.
The flexible display, which combines OLED and a bendable substrate, has been a staple of technology demonstrations for a long time, but there are many difficulties in practical application, such as strength and mechanisms other than the screen, and only recently has a product emerged as a foldable screen smartphone or PC from Samsung and Lenovo.
OPPO's conceptual design OPPO X 2021 uses rollable display technology to continuously roll up this flexible display, the idea being to expand or narrow the screen without a folding mechanism.
The inside looks like this. The display is housed behind the edge of the body. It is not tightly wound around a shaft, but the folded edge of the body is the part with the smallest radius of curvature (steepest bend).
The thickness of the body is determined by the rate of bending that the display can withstand, but it also has the advantage that only the screen needs to bend, unlike a foldable device. The axis of the winding part of the OPPO X 2021 is 6.8 mm in diameter.
Foldable devices with folded displays are basically two screen sizes, one folded and one open, but with rollable, they also benefit from being able to continuously change size from smallest to largest.
The OPPO X 2021 has a built-in motor that can automatically expand and contract the body and screen, so when you play a video, for example, it will automatically change size according to the aspect ratio. If you hand it to me without knowing it, I'm sure I'll be surprised to drop the phone as it expands in my hand automatically.
The body is a comb-interlocked "2-in-1 Plate" that can be enlarged or reduced without any bumps.
The display is 6.7 inches diagonal in thin phone form and 7.4 inches in unfolded tablet form. 6.7 and 7.4 may seem like only a slight change in numbers, but it is much wider in the area due to the increased width and the change in aspect ratio. It's a bit like a tablet's 7.4 from the 6.7 of a vertical smartphone.
The OPPO X 2021 is just a conceptual design and the product as it has not been announced with any specifications or release date.
But it's more than just a mental picture, and OPPO is showing off what it can do with proprietary technologies, such as Warp Track, a ruggedized screen laminate technology that makes it possible to rewind.
According to OPPO, 122 patents have been awarded for research and development through the construction of the OPPO X 2021 prototype, 12 of which are related to the rewind mechanism.
By the time folded-screen smartphones and tablets become popular as a mere variation of today's expensive early adopters, "scrolling," which involves pulling the scroll left or right to create a large screen, could be the latest trend.
This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl. The Japanese edition of Engadget does not guarantee the accuracy or reliability of this article.