Common 3D curved tempered glass films are PET curved film, 3D curved tempered glass film, Japanese Asahi curved tempered glass film, etc.
Generally, there are four kinds of tests for 3D tempered glass protector after finished product - friction resistance, ball drop, transmittance, appearance color difference. Each test can be different from the same product, with emphasis on the consistency of delivery quality in each batch.
3D tempered glass protector can achieve oil and water repellency. According to the different requirements of different customers, AF coating, AR coating/plasma spraying can be applied. Different requirements will lead to different prices and different effects.
The main reason for the white edge problem of 3D curved tempered glass film is the uncertainty of the hot bending tolerance controlled by the current hot bending machine, so some machines of the same hot bending film will have white edge, some machines will not have white edge, and the appearance of white edge does not mean that the film is not good. There are several reasons, one is screen bending part tolerance caused; two is hot bending is not well controlled caused; three is silicone pressure sensitive quality problems; four is hot bending film manufacturers in production caused by the use of poor quality AB adhesive. Disheng will try to paste the toughened film with thin and thick AB glue before production, so as to solve the problem of white edge, and then continue to produce through continuous machine debugging.
3D curved tempered glass film is more difficult to process than flat screen. The key poor link of hot bending film is the quality of adhesive. The yield of hot bending film is 70% and 90% respectively in the sticking link. The hot bending film needs vacuum machine to fit.