P‐4.1: Analysis and Application of the Peel Strength of the Foam Tape on Display Panel

In order to solve the problem of peel between display panel and backlight module in new display products such as four-sided borderless display and curved display, in this paper, the peel strength of foam tape was studied through experiment and simulation, and the peel stress strength of the foam tape was established to guide product design. Firstly, the peel stress of foam tape was obtained by peel strength experiment of foam tape samples. Then, the simulation model was established by using finite element software, and the load weight corresponding to the tilt experiment of the 27-inch four-sided borderless display was calculated. Finally, the accuracy of the simulation model was verified by the tilt experiment of 27-inch display, and the peel stress strength of the foam tape was established. The peel stress was about 1.94×10 -2 MPa. Based on the peel stress strength, the minimum width of foam tape for 23.8-inch four-sided borderless display was 1.5 mm. The display passed the 60 ℃/90% RH HTHHS 500 hours experiment, meeting the product quality requirements. This method can guide the size design of foam tape for new display products such as four-sided borderless display and curved display, and enhance the ultimate design competitiveness of products.