[FPDI] AUO's LCD Panels Scan Fingerprint, Measure UV Levels

Nov 4, 2008
Takuya Otani, Nikkei Electronics
A fingerprint is being scanned.
A fingerprint is being scanned.
[Click to enlarge image]
A scanned fingerprint
A scanned fingerprint
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Measuring the intensity of ultraviolet (UV) lays
Measuring the intensity of ultraviolet (UV) lays
[Click to enlarge image]
The result of the measurement
The result of the measurement
[Click to enlarge image]

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.

FPD International 2008