Patent ID: 9658145
Date: 2017-05-23
CPC Classifications: G01N

Claim:
1. A method of measuring a strain experienced by a display device, the method comprising: coating a measurement pigment composition comprised of pigment particles on any portion of a surrounding non-display area of a display panel, a strain measuring part being defined by the measurement pigment composition coating, the surrounding non-display area of the display panel consisting of display panel surfaces not covered by device components interfacing with the display panel, the strain measuring part comprising at least one selected from the group consisting of an ultraviolet curable resin, a thermoplastic resin and a thermosetting resin; obtaining a first three-dimensional image of the strain measuring part; causing a shape of the strain measuring part to change by bending at least one portion of the display device including the display panel; obtaining a second three-dimensional image of the strain measuring part; and generating a strain of the display device by making a comparison between a plurality of the three-dimensional images of the strain measuring part.