Barco has been granted a patent for an auxiliary display device featuring a shared hub with a dual input port for receiving two supply voltages. This device connects to both common anode and common cathode LED modules, allowing specific voltage configurations for their respective LEDs. GlobalData’s report on Barco gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Barco, Under-screen fingerprint recognition was a key innovation area identified from patents. Barco's grant share as of June 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Auxiliary display device for led modules with dual voltage

Source: United States Patent and Trademark Office (USPTO). Credit: Barco NV

The granted patent US12045537B1 describes an auxiliary display device designed for light-emitting diode (LED) modules, featuring a shared hub with a dual input port and an independent output port. The dual input port is capable of receiving a dual supply voltage, which consists of a first voltage and a second voltage. The output port connects to either a common anode or common cathode LED module, each containing two LEDs. The configuration allows the first LED of the common anode module and the first LED of the common cathode module to operate on the first voltage, while the second LED of the common cathode module operates on the second voltage. Additional claims detail the inclusion of a dual output power source, a black screen control circuit, and various components such as switch circuits and filter circuits that enhance the device's functionality.

Further elaboration in the claims outlines the structure of the black screen control circuit, which includes switch circuits that manage power supply connections and control signals. The circuit is designed to cut off power to the LED modules when a standby instruction is received, indicating a lack of display signal. The patent also describes the integration of inductors and drivers that facilitate communication between the shared hub and the LED modules. The overall design aims to improve the efficiency and control of LED displays, with specific configurations for both common anode and common cathode setups, ensuring that the LED modules operate effectively under varying voltage conditions.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.