For three years now, fingerprint recognition technology has been applied to mobile phones under screens. During this time, fingerprint recognition solutions have gradually expanded from expensive phones to standard smartphones. Even Apple, which used to reject fingerprint recognition, was secretly building a fingerprint recognition device by Mr. Lee Nan (Apple’s designer), and such high demand in this market could lead to many other manufacturers Pull this side.
Recently, Qualcomm introduced a new generation of fingerprint sensors. It should be noted that the last time Qualcomm released fingerprint sensors was two years ago. At the time, only Samsung’s old partner approved Qualcomm’s ultrasonic fingerprint recognition solution. But at the same time problems such as error in locking and
Many other bugs caused Qualcomm to fail in the fingerprint recognition market.
Two years later, Qualcomm returned to the field. Qualcomm not only solved many of the problems before, but also upgraded three technologies and showed its determination.
According to official information, Qualcomm’s new generation ultrasonic 3D fingerprint sensor has a larger detection area than the first generation. The data recording area is 1.7 times that of the first generation sensor. Users do not need to worry about the location of their fingers and they are easier to use.
The second upgraded technology is to increase the opening speed, which is the biggest advantage of the ultrasonic fingerprint sensor.
Two years ago, Samsung chose the Qualcomm solution because the ultrasonic fingerprint sensor allows you to lock the phone faster than the optical fingerprint sensor. Compared to Qualcomm’s first-generation second-generation ultrasonic fingerprint recognition chip, the unlock speed is increased by about 50% and the efficiency is greatly improved.
The third aspect of the upgrade is its thickness. The thickness of the new generation ultrasonic sensors is only 0.2 mm.
Because the internal components of the body are seriously shrinking, the use of ultra-thin fingerprint sensors can provide more possibilities for mobile phone design. In addition, this product can be used in the folding screen of mobile phones, which are the future of mobile phones.
In addition, ultrasonic fingerprint chips have different operating principles than light-sensitive fingerprint sensors, so they have significant advantages in real-world applications.
For example, light-sensitive fingerprint recognition technology affects light refraction because when the screen is wet; Reduces the success rate of unlocking the cell phone, but does not affect the ultrasonic fingerprint recognition solution.
According to information provided by Qualcomm, the first mobile phone equipped with this sensor will be launched in the first quarter. Although Qualcomm has not announced the name of the manufacturer, but given the time of release of the Samsung S21 series and the relationship between the two, this sensor should be marketed in the Samsung S21.
As a consumer, which do you prefer, optical or ultrasonic?