Do fingerprint sensors built intosmartphone displays the main disadvantage is the limited scope. The finger has to be applied specifically to the scanner placement point. But technology is evolving. So, AU Optronics, or abbreviated AUO, proposed a solution to this problem.
At the next exhibition Display Week 2019 thisa manufacturer from Taiwan has demonstrated several solutions. One of the most interesting is the first LTPS optical liquid crystal display on the planet with a full-screen fingerprint scanner. Another option is touchscreens for mobile gadgets with the world's narrowest bottom frame and the smallest through-hole.
In LTPS LCD display withA full-screen fingerprint sensor called AUO diagonal is 6 inches. The sensor is built into the very structure of this screen. The basis of the development of AHVA-matrix with a density of 403 PPI points and a resolution of 2160 x 1080 pixels. According to the manufacturer, the fingerprint reading area has the same density and response time, which is 30 milliseconds.
The size of the other display is 6.2 inches. The ratio of its sides is 21: 9, the resolution is 2520 x 1080 pixels. The diameter of the hole under the front camera is only 4.2 millimeters. The width of the lower border is only 1 millimeter. This is 40% less than the indicators of existing analogs.
Full-screen fingerprint sensors are activelyother companies also patent and show, for example, Xiaomi and Samsung. So very soon smartphones with a similar filling will start to be produced quite actively.