The World Intellectual Property Organization (WIPO) recently released data for patent filings in 2019 which shows that Huawei was the top patent filer in the corporate category. Huawei has also at different times bragged about its huge R&D investment. The Chinese tech giant has once again filed a new patent for extendable smartphone design. The patent was filed with the China National Intellectual Property Administration (CNIPA) and was discovered in WIPO’s global design database. 
The sketches which have been rendered by LetsGoDigital shows the phone will adopt a foldable panel just like the Mate X and Mate Xs. However, instead of an in-folding design, the new patented model has a pull-out display design.
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Huawei exhibited two different design styles which are described and illustrated by several images. The first model (Model A) has a significantly smaller pull-out display than the Model B. It features a bezel-less design and the flexible screen can be extended from the right side to the rear with a simple swipe of the finger. There is a vertical trim at the back which houses a triple camera setup. There is no indication of a front camera. You may have to just turn the phone over to take self-portraits with the main camera. The extension increases the display area by 30% on the model A.
For the second model, Huawei implements a different type of sliding system. This change sees the triple camera setup located on the left rear side instead of the right side. The flexible display also extends from the left. The extended part will be a lot thinner on the right side considering that the left side houses the rear sensors. With this design, the display area may be increased up to 50% on the second design. However, in terms of practicality, the first design looks better.
We must point out that this isn’t the first of such extendable design that has been patented. Samsung, LG, Xiaomi and even TCL have at different times filed patents for retractable phone design. TCL even showcased a prototype of the first extendable smartphone in the world. Just like foldable design, smartphones with sliding flexible displays may meet with us in the next few years.
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