Huayuan Semiconductor (shenzhen) Limited Company

Yung-Ting Chen

Junjie Zheng

Richard Landry Gray

Chih-Chang Wei

Li-Lun Chi

Jyun-Long Lin

Lilun Chi

Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of driver circuits that are distributed in the display area. An integrated LED and driver circuit includes one or more LEDs of a LED zone and one or more driver circuits integrated on a substrate in a single package with the LED and driver circuit vertically stacked over a substrate. An addressing scheme configures addresses of the driver circuits using address lines that connect between adjacent driver circuits. Control data is provided to the driver circuits via a power line communication signal that provides both a supply voltage and digital data modulated onto the supply voltage.

Power line communication in a display device with distributed driver circuits

Display device with single package light emitting diode and driver circuit

Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of zone integrated circuits that are distributed in the display area. The zone integrated circuits may comprise integrated LED and driver circuits and may include sensor circuits. The zone integrated circuits are arranged in groups that are coupled to each other and to the control circuit in a serial communication chain via serial communication lines. The control circuit provides control signals that control the driver circuits to drive the LED zones and may provide commands to request readback data from the zone integrated circuits. Responsive to the commands, the zone integrated circuits output readback data to the control circuit via the serial communication chain.

Display device with feedback via serial connections between distributed driver circuits

Growing community of inventors

Zhubei, Taiwan

Yung-Ting Chen