US Patent No. 10,716,227

BENDING APPARATUS AND DISPLAY DEVICE


Patent No. 10,716,227
Issue Date July 14, 2020
Title Bending Apparatus And Display Device
Inventorship Lin Heng, Shanghai (CN)
Assignee SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai (CN)

Claim of US Patent No. 10,716,227

1. A bending apparatus, comprising a first supporting portion, a second supporting portion and a bending portion, wherein:each of the first supporting portion and the second supporting portion is formed by a retractable plate-shaped structure,
the first supporting portion is rotatably connected to the bending portion, and
the second supporting portion is rotatably connected to the bending portion,
wherein the retractable plate-shaped structure comprises a plurality of plate-shaped structures which are successively connected in an end-to-end manner, and adjacent plate-shaped structures are slidable relative to each other,
wherein the first supporting portion comprises a plurality of first supporting plates, the plurality of first supporting plates are successively connected in a retractable manner, such that cross-sectional areas of the plurality of first supporting plates are gradually reduced, one of the plurality of first supporting plates having the greatest cross-sectional area is configured to connect the bending portion, one of the plurality of first supporting plates having the smallest cross-sectional area located at an end of the first supporting portion away from the bending portion is configured to be fixedly connected to a flexible display panel,
the second supporting portion comprises a plurality of second supporting plates, the plurality of second supporting plates are successively connected in a retractable manner, such that cross-sectional areas of the plurality of second supporting plates are gradually reduced, one of the plurality of second supporting plates having the greatest cross-sectional area is configured to connect the bending portion, one of the plurality of second supporting plates having the smallest cross-sectional area located at an end of the second supporting portion away from the bending portion is configured to be fixedly connected to the flexible display panel, and
a cross section of each of the plurality first supporting plates and the plurality of second supporting plates is perpendicular to an upper surface of the retractable plate-shaped structure, and is parallel to a rotation axis between the first supporting portion and the bending portion,
wherein each of the plurality of first supporting plates comprises a plurality of first positioning holes located on a sidewall of the first supporting plate,
each of the plurality of first supporting plates, except for the first supporting plate having the greatest cross-sectional area, further comprises a first positioning portion located on the sidewall of the first supporting plate, and the first positioning portion is configured to be engaged with one of the plurality of first positioning holes for positioning,
each of the plurality of second supporting plates comprises a plurality of second positioning holes located on a sidewall of the second supporting plate, and
each of the plurality of second supporting plates, except for the second supporting plate having the greatest cross-sectional area, comprises a second positioning portion located on the sidewall of the second supporting plate, and the second positioning portion is configured to be engaged with one of the plurality of second positioning holes for positioning, wherein: each of the first positioning portion and the second positioning portion is a spring pin or a positioning protrusion.