Folding length difference compensation mechanism of multi-folding device

Abstract

The invention discloses a folding length difference compensation mechanism of a multi-folding device. The three shell seats are connected through two rotating shaft modules; the matched flexible display is relatively overturned into a folded state or an unfolded state; each shell seat comprises two shells which slide relatively; each rotating shaft module comprises a base and two sliding units. One end parts of the main linkage part and the auxiliary linkage part of each sliding unit are respectively pivoted with the two main pivoting parts at each end of each base; the opposite ends of the main linkage parts and the sliding parts are each connected with a shell. The guide structures are arranged on the side edges and the end edges between every two shells of the two shell seats; and / or asupporting plate body capable of swinging in an arc shape is arranged on the shells of the two shell bases, the middle transmission parts are in transmission and traction between the auxiliary linkageparts and the sliding parts, the shells are guided mutually, the shell bases are made to stretch and retract stably, the length difference is used for compensating for the length change of the flexible displayer after bending, and a bent part with the small curvature is formed.

Description

technical field [0001] The present invention relates to a length difference compensating mechanism for a flexible display (or flexible screen for short), especially to a folding length difference compensating mechanism for a multi-fold device, wherein the multi-fold device refers to a device equipped with the flexible display An electronic device, which includes at least three bodies and at least two hinge modules, and a hinge module is arranged between every two bodies, so that the electronic device itself can be folded at least twice, that is to say, the electronic device is folded In the normal state, there are at least two bending parts as a whole, which is different from the combination of two bodies and one hinge module in the traditional folding electronic device, so it will not be folded in half only once, of course, it can also refer to the electronic device as a whole For a body to be bent at least twice instead of only once, the folding length difference compensatin...

AI Technical Summary

Problems solved by technology

[0004] In addition, in the previous case 3, a three-layer folding type that presents an approximate S-shape or Z-shape by folding inwards and outwards is added. Of course, under the advantage of the flexible display part (that is, the flexible screen), The folded previous case 3 is thinner than the folded previous case 1 as a whole, but the two connecting parts used as the hinges are not clearly disclosed, but only briefly shown in concept, so whether it can form a completely closed state after the whole is folded The applicant has doubts because the applicant once applied for a patent case for a hinge module of a folding device (application number TW107113396 / CN201810371007.2, subsequently referred to as previous case 4), in which there is an embodiment It includes a first support, a pair of split shafts, a second support, a multi-axis shaft and a third support for use with a flexible display, so that after the whole is folded, the second split shaft connected A supporting member and a second supporting member can be closed, and will form an accommodating space inside the split-type rotating shaft to accommodate the curved area of ​​the flexible display, but in the multi-axis rotating shaft, limited It is limited to keep enough distance between the four shafts for the installation of other components (such as linkages, friction plates, linkage plates and stoppers, etc.), so that after the overall folding, the multi-axis shaft A distance is formed between the connected second support and the third support. When the flexible display is arranged on the same side of the three supports, the split shaft and the multi-axis shaft, the aforementioned The spacing will affect the overall thickness, so the same problem should exist for the two connecting parts of the same multi-axis shaft in the previous case 3

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