The invention discloses a display panel assembly, and belongs to the technical field of display. The display panel assembly disclosed by the invention comprises: a flexible display panel; at least three adjusting supporting pieces arranged on the surface of one side of the flexible display panel at intervals and connected with different positions of the flexible display panel respectively; and adjusting connecting pieces used for connecting the adjacent adjusting supporting pieces, wherein the adjusting connecting pieces can change the included angle between at least two adjacent adjusting supporting pieces so as to change at least part of the bending form of the flexible display panel, and the included angle is the included angle between the end faces, connected with the flexible displaypanel, of the two adjacent adjusting supporting pieces. The curvature radius of the flexible display panel can be freely adjusted when the flexible display panel is bent.

Display panel assembly

The invention discloses a film surface flatness detection device and method. The detection device comprises a light-emitting substrate and a detector. The light-emitting substrate can emit light and form a first light-emitting pattern, and is used for emitting test light forming a first light-emitting pattern to a to-be-detected film; the detector is used for collecting test light penetrating through the to-be-detected film or reflected back by the to-be-detected film to form a second light-emitting pattern, and the difference between the first light-emitting pattern and the second light-emitting pattern is compared to obtain the surface flatness of the film. In the way, the detection precision of the surface flatness of the film can be improved.

Film surface flatness detection device and method

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Display panel assembly

Film surface flatness detection device and method