US 11,940,421 B2
Method and apparatus for detecting bending stiffness and method for testing display panel
Yanling Liu, Kunshan (CN); Pengle Dang, Kunshan (CN); Yuliang Li, Kunshan (CN); Yuexing Ma, Kunshan (CN); and Xin Tang, Kunshan (CN)
Assigned to KunShan Go-Visionox Opto-Electronics Co., Ltd, Kunshan (CN)
Filed by KunShan Go-Visionox Opto-Electronics Co., Ltd, Jiangsu (CN)
Filed on Dec. 8, 2021, as Appl. No. 17/545,211.
Application 17/545,211 is a continuation of application No. PCT/CN2020/111797, filed on Aug. 27, 2020.
Claims priority of application No. 201911207445.6 (CN), filed on Nov. 29, 2019.
Prior Publication US 2022/0099542 A1, Mar. 31, 2022
Int. Cl. G01N 3/20 (2006.01); G01M 11/08 (2006.01)
CPC G01N 3/20 (2013.01) [G01M 11/08 (2013.01); G01N 2203/0023 (2013.01); G01N 2203/0282 (2013.01); G01N 2203/0605 (2013.01); G01N 2203/0676 (2013.01); G01N 2203/0682 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for detecting bending stiffness, comprising:
arranging an object to be tested on a reference surface to make a stationary portion and a rotating portion of the object to be tested attached to the reference surface, the stationary portion and the rotating portion being connected with each other;
driving the rotating portion to bend from the reference surface toward the stationary portion and acquiring a rotation angle between the rotating portion and the reference surface;
acquiring a bending force received by the rotating portion when the rotating portion is bent from the reference surface toward the stationary portion; and
determining bending stiffness of the object to be tested according to the bending force and the rotation angle.