We know that Apple's three new iPhones to be launched in 2018 will use Face ID instead of Touch ID, and the company plans to use Face ID in the new iPad Pros launched next month. However, Apple is in fact still working behind to study a way to bring fingerprint sensors back to the iPhones. a new patent application reveals.According to a report by Patently Apple , Apple has invented a new technology that adds fingerprinting to devices without the need for a Home button. This would be the perfect solution to use Touch IDs on devices that have "full-screen" displays, such as the iPhone X.The patent says users can unlock their iPhone, open a secure app, or verify mobile payments by simply placing their finger on the phone's screen. As it explained, the new solution is similar to the optical fingerprint reader that used on several Android smartphones. It utilizes cameras placed under the screen to captures 3D image data of fingerprints to authenticate.So now we know that the company has find a new solution that adds fingerprinting to its products without the need for a Home button, which is undoubtedly a good news for those who still prefer to use Touch ID on their iPhones.