Fig. 1. Slidable structure model

Fig. 2. Geometry structure mode

Fig. 3. OLED screen stack structure

Fig. 4. Finite element mesh model

Fig. 5. Mises stress distribution of horizontal axis（r=3.5 mm）

Fig. 6. Bending stress of horizontal axis under different scroll radius

Fig. 7. Bending stress of interchangeable film（r=3.5 mm）

Fig. 8. Strain of the display layer before and after the exchange of film layers

Fig. 9. Different thickness shapes of OCA adhesive layer

Fig. 10. Mises stress of the screen under different thickness shapes of OCA layer

Fig. 11. Strain of display layer under different OCA adhesive layer thickness shapes