LG Dual Screen Smartphone Technology Explained!

LG has now introduced two Dual Screen smartphones – the LG V50 ThinQ and the LG G8X ThinQ.

In this article, we will dive into their Dual Screen technology, and look at the good, the bad and the ugly side of it!


LG Dual Screen Technology

Foldable displays are a great way to differentiate smartphones from their rivals. But the HUAWEI Mate X and Samsung Galaxy Fold have shown, they are difficult to develop and manufacture.

Unwilling to spend money to develop their own foldable display, LG chose to develop Dual Screen devices instead.

While not as sexy as foldable displays, they are inherently much cheaper and easier to develop and manufacture.

That’s why the first model is out now, with a second model on the way, even while the HUAWEI Mate X and Samsung Galaxy Fold have been delayed for months now.

LG V50 Dual Screen

First introduced in the LG V50 ThinQ 5G, it basically involves attaching a Dual Screen case (which has a second display) to an ordinary LG V50 smartphone.

The Dual Screen case has a second display on the inner side of its front cover. It uses a three-pin POGO connector to deliver power and data to this display.

The two displays have different characteristics which we have summarised in this table :

Specifications LG V50 ThinQ Display LG Dual Screen Display
Size 6.4-inch 6.2-inch
Panel Type OLED OLED
Resolution Quad HD+
1440 x 3120 pixels
Full HD+
1080 x 2160 pixels
Pixel Density 538 pixels per inch 390 pixels per inch

The hinge design not only separates the two display by about ¼ inch, it cannot fully open so the two displays cannot lay flat.

LG G8X Dual Screen

At IFA 2019, LG unveiled their second Dual Screen device – the LG G8X ThinQ.

It incorporates a number of improvements over the LG V50, including using the same display… right down to the notch!

Specifications LG G8X ThinQ Display LG Dual Screen Display
Size 6.4-inch 6.4-inch
Panel Type OLED OLED
Resolution Full HD+
1080 x 2340 pixels
Full HD+
1080 x 2340 pixels
Pixel Density 403 pixels per inch 403 pixels per inch

Instead of a 3-pin POGO connector, the G8X uses the USB-C port to communicate with its Dual Screen case.

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Dual Screen = Separate Displays

The way LG designed it, the two displays are functionally and logically separate displays.

This means it is not possible to stretch an app across both displays… except for a singular exception – the NAVER Whale browser.

It does not help that the two displays are separated by a hinge that is about ¼ inch wide, and hinge design itself prevents the two displays from laying flat.


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