Fold testing device

Patent metadata

Field	Value
Publication number	US-12529634-B2
Application number	US-202217969497-A
Country	US
Kind code	B2
Filing date	Oct 19, 2022
Priority date	Aug 27, 2020
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

A fold testing device, including a support mechanism, an adjusting mechanism, and an attaching mechanism. The support mechanism includes a supporting body, a first position limiting part, and a second position limiting part. The first position limiting part and the second position limiting part are arranged on a side of the supporting body along a first direction. The supporting body, the first position limiting part and the second position limiting part are enclosed to form a positioning part. A flexible display module is received in the positioning part. The adjusting mechanism is installed on the supporting body, and configured to drive at least one of the first position limiting part and the second position limiting part to move along the first direction. The attaching mechanism includes an elastic attaching body. The elastic attaching body is movable toward the supporting body along a second direction. The elastic attaching body engages with the positioning part.

First claim

What is claimed is:

1 . A fold testing device, comprising:
a support mechanism, comprising a supporting body, a first position limiting part, and a second position limiting part; the first position limiting part and the second position limiting part being oppositely arranged on a side of the supporting body along a first direction; the supporting body, the first position limiting part and the second position limiting part being enclosed to form a positioning part; and a flexible display module being received in the positioning part; an adjusting mechanism, installed on the supporting body, the adjusting mechanism being configured to drive at least one of the first position limiting part and the second position limiting part to move along the first direction to make the first position limiting part and the second position limiting part close to or away from each other, to adjust a first dimension of a spacing between the first position limiting part and the second position limiting part; and an attaching mechanism, comprising an elastic attaching body; the elastic attaching body being movable toward the supporting body along a second direction; the elastic attaching body engaging with the positioning part; the supporting body, the first position limiting part, the second position limiting part and the elastic attaching body defining a limiting position; and the flexible display module forming folds with a fold ratio at the limiting position, wherein the flexible display module has a second dimension along the first direction, and the fold ratio is determined according to a ratio of a difference between the second dimension and the first dimension to the second dimension; each of the first position limiting part and the second position limiting part is provided with a pre-bending groove connected to the positioning part; each pre-bending groove extends along a third direction, and two sides of the flexible display module along the first direction engage with the pre-bending groove of the first position limiting part and the pre-bending groove of the second position limiting part, respectively; and any two of the first direction, the second direction, and the third direction are perpendicular to each other.

2 . The fold testing device according to claim 1 , wherein:
an opening is formed between the first position limiting part and the second position limiting part at a side of the first position limiting part and the second position limiting part away from the supporting body; wherein the opening communicates with the positioning part; and wherein the elastic attaching body is configured to move from the opening into the positioning part via the opening along the second direction.

3 . The fold testing device according to claim 1 , wherein a projection of the elastic attaching body on the supporting body along the second direction covers a region of the supporting body between the first position limiting part and the second position limiting part.

4 . The fold testing device according to claim 1 , wherein:
the adjusting mechanism comprises at least one first moving mechanism; and wherein the at least one first moving mechanism is configured to drive one of the first position limiting part and the second position limiting part to move close to or away from another of the first position limiting part and the second position limiting part along the first direction.

5 . The fold testing device according to claim 4 , wherein:
a quantity of the at least one first moving mechanism is two; wherein one of the two first moving mechanisms is configured to drive the first position limiting part to move close to or away from the second position limiting part along the first direction; and wherein another of the two first moving mechanisms is configured to drive the second position limiting part to move close to or away from the first position limiting part along the first direction.

6 . The fold testing device according to claim 4 , wherein:
the adjusting mechanism further comprises at least one adjusting knob; and wherein the adjusting knob is connected to the first moving mechanism corresponding to the adjusting knob, and the adjusting knob is operatively to adjust an amount of movement of the first moving mechanism.

7 . The fold testing device according to claim 1 , wherein:
the pre-bending groove disposed in the first position limiting part passes through the first position limiting part along the third direction, and two first inserting openings are respectively formed on two end surfaces of the first position limiting part along the third direction and communicate with the pre-bending groove of the first position limiting part; wherein the pre-bending groove disposed in the second position limiting part passes through the second position limiting part along the third direction, and two second inserting openings are respectively formed on two end surfaces of the second position limiting part along the third direction and communicate with the pre-bending groove of the second position limiting part; and wherein the two sides of the flexible display module are respectively inserted into the pre-bending groove corresponding to the first inserting opening and the pre-bending groove corresponding to the second inserting opening via the first inserting opening and the second inserting opening along the third direction, and the two sides of the flexible display module engage with the pre-bending groove corresponding to the first inserting opening and the pre-bending groove corresponding to the second inserting opening respectively.

8 . The fold testing device of claim 1 , wherein the two pre-bending grooves are respectively disposed on two surfaces of the first position limiting part and the second position limiting part away from the supporting body.

9 . The fold testing device according to claim 1 , wherein:
the support mechanism further comprises at least one auxiliary position limiting assembly; wherein the at least one auxiliary position limiting assembly is arranged on the supporting body; and wherein the auxiliary position limiting assembly comprises an auxiliary position limiting member capable of operationally moving close to the first position limiting part along the first direction, the auxiliary position limiting member is configured to abut against a side of the first position limiting part away from the second position limiting part.

10 . The fold testing device according to claim 9 , wherein:
the auxiliary position limiting member is an adjusting nut; and wherein the auxiliary position limiting assembly further comprises a fixing member, and the fixing member is fixed to the supporting body, and the fixing member is provided with a threaded hole extending along the first direction and engaging with the adjusting nut.

11 . The fold testing device according to claim 1 , wherein
the support mechanism further comprises at least one auxiliary position limiting assembly; wherein the at least one auxiliary position limiting assembly is arranged on the supporting body; and wherein the auxiliary position limiting assembly comprises an auxiliary position limiting member capable of operationally moving close to the second position limiting part along the first direction, the auxiliary position limiting member is configured to abut against a side of the second position limiting part away from the first position limiting part.

12 . The fold testing device according to claim 1 , wherein:
the attaching mechanism further comprises a moving mechanism; and wherein the moving mechanism is configured to support on a side of the elastic attachin

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Liu Suwei
• Yang Shuo
• Wu Yaoyan
• Gu Chunxiao
• Yang Bin

Classifications

• G09F9/301

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• G01N2203/0282

  Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes · CPC title

• G01N2203/0023

  Bending · CPC title

• G01M11/0214

  Details of devices holding the object to be tested · CPC title

• G01N3/20 Primary

  by applying steady bending forces (G01N3/26, G01N3/28 take precedence) · CPC title