[FPDI] AUO's LCD Panels Scan Fingerprint, Measure UV Levels
AU Optronics Corp (AUO) of Taiwan exhibited a 2.8-inch LCD panel that has a function to scan a fingerprint in a few seconds after a finger is placed on it.
At the company's booth, it displayed a scanned fingerprint on a monitor connected to the panel.
The LCD panel is mounted with optical sensors and a detection circuit. Each pixel is equipped with four sensors. The pixel count of the panel is 320 × 240, and the resolution of the sensor is 640 × 480, according to the company.
By using a similar technology, AUO developed a 2.8-inch LCD panel that can measure the intensity of ultraviolet (UV) lays and numerically express it (from 0 to 11). It is targeted at female users who concern about the amount of UV light outdoors.
The LCD panel is integrated with optical sensors and a detection circuit as the panel with the fingerprint scanning function. The sensors respond only to UV light, the company said.