What is Apple's patent for stretchable display?

First of all, the concept of full-screen mobile phone is not very accurate. It should be said that it is a touch-screen mobile phone. In fact, the first touch-screen mobile phone in the world was not Apple, but existed for a long time. IBM Simon was listed on August 1994, and it is recognized as the first smart phone in the world. BM Simon has no physical buttons, and the input is completely operated by touch screen. It's just that Apple introduced a high-resolution multi-touch iPhone in 2007. According to you, IBM can completely ban Apple from doing this, so the manufacturers behind will not have business. Apple is not qualified to do this, and this patent is for human use, and then the inventor makes a profit. No one will take it for himself. The market cannot be saturated in this way. No one will do such a thing for greater profits.