P‐7.15: Mechanical Analysis of Tearing Risk of OLED Display Screen Based on Finite Element Method

The tearing process of the display screen module assembly induces stress on the panel, potentially causing panel failure and having adverse effects on production yield. However, the tearing of the screen involves numerous influencing factors, and there is currently a lack of systematic investigations into the individual effects of these factors. This work focuses on the aperture position on the panel in the tearing process by finite element analysis, analyzing the influences of aperture size, tearing direction, and the modulus of polarizing film and back plate film. The improvement recommendations resulting from this analysis were implemented in practical production, and no instances of aperture issues attributed to tearing were observed in the production of around three thousand screen modules.