Japanese patent application 2018-54913 describes an articulating touchscreen that can rotate in various directions. Reducing the size of the mechanism seems to be one of the described claims.

Machine translated patent literature excerpt:

A display device having a display portion includes a first plate, a first shaft rotatably supporting the first plate, a second plate, a first plate provided on the first plate, A second shaft rotatably supporting the second plate rotatably in a direction substantially parallel to the first plate and the second plate, a third plate, a third plate provided on the second plate, and a third plate provided on the second plate and extending in a direction substantially perpendicular to the first axis and the second axis And a third shaft rotatably journalled, wherein the second shaft is provided at one end portion of the first plate and substantially at the center portion of the second plate, and the second plate is formed of a first And the second shaft is pivotally supported by the second shaft at a substantially central portion of the display portion in a direction substantially parallel to the third axis in a state where the plate, the second plate, and the third plate are overlapped with each other.

As you can already see from the images, the display can be articulated to the side (on a vertical axis) and from the bottom of the camera (horizontal axis).