Analysis of the advantages and disadvantages of fingerprint recognition technology under the screen
In 2018, a new trend appeared in the mobile phone market. From the beginning of Apple's 5s fingerprint recognition to 3dtouch to full screen, face recognition, with the development of technology and technological innovation, a new trend will appear every year. At the same time as the trend emerges, major mobile phone manufacturers will have no brains to follow the trend in production, and the direct result is that it is either a tasteless function or a virtual head, such as Apple's 3dtouch screen. When it first came out, the major mobile phone manufacturers After carrying them one after another, it was found that it was tasteless when used. It is a pity to discard them. Of course, there are countless eyeball recognition and so on. Today, I will talk to you about the pros and cons of under-screen fingerprint recognition, which will be a big fire in the second half of this year.
First of all, it is worthy of affirmation that the fingerprint recognition under the screen is really great. When the fingerprint module is placed under the screen, the fuselage adopts a full-screen collocation, which can make the phone have a very strong sense of integration and make the entire phone look better. It raises a level, and also has a sense of science and technology. In theory, it is very convenient in actual use. It can be unlocked with a light touch on the screen, but for now it is still relatively ordinary, because fingerprint recognition under the screen has just begun to be popularized. Just like the 5s at the time, although it was great, there are still some minor problems due to technical defects, and the same is true for fingerprint recognition under the screen.
As we all know, fingerprint recognition modules are divided into photoelectric fingerprint recognition and ultrasonic fingerprint recognition. Among them, the better one is ultrasonic fingerprint recognition, but due to its cost, many manufacturers have not chosen it. Furthermore, due to the limited technology, ultrasonic can only be used. Very thin glass, so currently no manufacturer is equipped with fingerprint recognition under the screen, but it is said that the next generation of Samsung mobile phones will be equipped with fingerprint recognition under the screen.
So the under-screen fingerprint recognition used in most mobile phones nowadays is the photoelectric fingerprint recognition mode, so what are the advantages and disadvantages of this mode in terms of under-screen fingerprints? First of all, if you want to install a photoelectric fingerprint module under the screen, you must use an AMOLED screen. This kind of screen has a big disadvantage that it is easy to burn the screen. Theoretically, the usage time of the AMOLED screen is 50,000 hours, but the relative LCD screen is his Twice as much.
At the same time, due to the current photoelectric fingerprint recognition under the screen, the fingerprint information is collected through the bright screen of the AMOLED screen and then reflected to the fingerprint recognition module. Therefore, regional bright screens will often appear in the fingerprint recognition area, but this is not the case for AMOLED screens. Fatal damage, because it will easily cause screen burn, but don’t worry, even so, it can still be used for a long time. If burn screen occurs, you can contact after-sales service to replace it immediately. And because it is the latest under-screen fingerprint recognition, in the actual experience, both the recognition rate and the collection time are much longer than the previous fingerprint recognition, and there are often problems such as inoperability, so if you are not in a hurry to buy a mobile phone , It is recommended to wait a few months, and then purchase when the fingerprint recognition module under the screen is mature.
Cixi Zhongyi Electronics Factory , https://www.zybreadboard.com