Samsung wants to patent a curved screen for smartwatches

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Back in August 2014, Samsung announced a curved screen smartwatch, Galaxy Gear S. It had a curved OLED display. Its successor, Galaxy Gear S2 however, does not sport a curved display.

The company also released three other curved screen smartwatches, Galaxy Gear Fit, Galaxy Gear Fit 2 and Galaxy Gear Fit 2 Pro in 2014, 2015 and 2017 respectively.  

A new patent application of Samsung , published on July 11th hints that the company is still working on curved screen smartwatches.

The patent application, published by The United States Patents & Trademark Office talks about a curved screen for smartwatches. The curved screen has a flexible printed circuit board.

According to an embodiment of Samsung’s invention, there is provided a display device including: a display panel which is curved and displays an image; a cover window which is disposed on a front surface of the display panel at which the image is displayed; and a cover panel which is curved and disposed on a curved back surface of the display panel opposite to the front surface thereof.

The cover panel is defined by a flat cover panel which is curved by attachment thereof to the curved back surface of the display panel, and the flat cover panel which is curved to define the cover panel includes a cutout portion therein recessed from an outer edge of the flat cover panel toward a center of the flat cover panel. 

Samsung notes that the display panel DP may be a display panel applied to a smart watch or a wearable device.

Samsung’s figure 1 is an exploded perspective view of the display device according to this invention.

Samsung’s figure 2 is a cross-sectional view of the display device of figure 1.

As illustrated in Samsung’s figure 2, the cover window CW may include a curved surface. That is, in an assembled display device, the cover window CW may have an upwardly convex parabolic shape in cross-section. 

In other words, the cover window CW may be shaped like an upwardly convex dome. 

An image generated at the display area DA of the display panel DP can be provided to a user through the cover window CW at a viewing or front side of the display device. 

When the cover window CW has an upwardly convex dome shape, the display panel DP may be bent along the shape of an inner curved surface of the cover window CW so that the display panel DP has a curved surface. That is, a curved display panel may include a flat display panel which is curved along the curved cover window CW without being limited thereto. 

That is, as the display panel DP and the cover window CW are attached to each other, the display panel DP may be at least partially bent to contact the cover window CW. 

Referring to Samsung’s figures 1 and 2, the cover panel CP may be disposed on the back surface of the display panel DP. 

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