Panasonic Develops Displays With “Light ID”

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Panasonic Light ID

Panasonic Light ID links digital signage with smartphones.

The system uses a dedicated mobile app to share content in real time between Light ID transmitters (embedded in displays and LED signboards) to smartphones. It provides detailed information through blinking LEDs at a speed beyond recognition by the human eye.

This system enables the transmission of Light IDs from a display using high-speed backlight control technology.

This can be achieved through a compatible set-top box (STB) linked to the display, or through inbuilt media players using a USB memory device.

Enrique Robledo, European Marketing Manager at Panasonic, says, “Demand for information display media both inside and outside shops continues to grow. Solutions, such as Light ID, that efficiently distribute advertising messages and other information are set to become crucial.”

“A single display can provide a variety of information to smartphones,” adds Robledo. “We think that this has some very exciting applications in tourist areas for instance, where information to help visitors navigate an airport, train station or shopping arcade could be delivered in multiple languages. We expect a lot of interest from museums too, where detailed exhibit information and voice guidance could be provided using smartphones or tablets.”

Light ID

The new visible light ID technology boasts the following advantages: Easier detection: Unlike image reading methods such as QR codes or AR markers, this technology does not require users to hold the receiver in a specific position, and it also does not require time for focusing and complex image recognition. All users have to do is point the smartphone camera towards an LED light source or the illuminated object, and the app will immediately recognize the Light ID even from a distance, eliminating the need to navigate through crowds to approach light source codes.

Higher transmission rate: The information is then read by dividing the received images into blocks. This enables rapid decoding of information at a rate surpassing that of smartphone video recording (frame rates).

Low interference and location-free: Unlike information transmission systems using Bluetooth(R) or ultrasonic waves, radio and sound wave interference is not an issue, which makes it possible to provide different sets of information via multiple Light ID transmitters installed in adjacent locations.

Panasonic's newly developed visible light ID technology is expected to play an active role in various places. It sends valuable information for foreign tourists at a train station or visitors to facilities such as a museum and exhibition.

Panasonic showcased its Light ID technology at ISE 2016-- and the new display and a Light ID platform service is expected later this year.

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