US 12,207,490 B2
Method for treating transparent adhesive layer of protective film on display back plate of display panel
Mingjiong Zhang, Beijing (CN); Taofeng Xie, Beijing (CN); Hao Yan, Beijing (CN); and Zeyu Li, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Jan. 4, 2022, as Appl. No. 17/568,446.
Claims priority of application No. 202110349185.7 (CN), filed on Mar. 31, 2021.
Prior Publication US 2022/0320462 A1, Oct. 6, 2022
Int. Cl. H10K 50/842 (2023.01); B32B 7/06 (2019.01); B32B 27/20 (2006.01); B32B 27/28 (2006.01); H01L 21/683 (2006.01); H01L 27/12 (2006.01); H10K 50/844 (2023.01); H10K 59/131 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/8426 (2023.02) [B32B 7/06 (2013.01); B32B 27/20 (2013.01); B32B 27/281 (2013.01); H01L 21/6836 (2013.01); H01L 27/1266 (2013.01); H10K 50/844 (2023.02); H10K 59/131 (2023.02); H10K 59/873 (2023.02); H10K 59/8794 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 2102/311 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A method for manufacturing a display panel, comprising:
providing a display back plate, wherein the display back plate is provided with a light emitting side;
attaching a protective film on the light emitting side of the display back plate, wherein the protective film comprises a transparent adhesive layer disposed on the display back plate and a heavy release film disposed on a side, distal from the display back plate, of the transparent adhesive layer; wherein a release force between the transparent adhesive layer and the display back plate is a first release force, and a release force between the transparent adhesive layer and the heavy release film is a second release force, the first release force being less than the second release force;
treating the transparent adhesive layer such that the release force between the transparent adhesive layer and the display back plate is increased to a third release force, wherein the third release force is greater than the second release force; and
removing the heavy release film, and attaching a functional layer on the side, distal from the display back plate, of the transparent adhesive layer.