Led display device, and display panel having led display device and segmentation unit group

An LED display device, comprising a substrate, a front circuit board arranged at a top of the substrate, a back circuit board arranged at a bottom of the substrate, and a light-emitting chip arranged on the front circuit board, wherein the front circuit board is provided with an A-electrode bonding pad and a B-electrode bonding pad;

• the A-electrode bonding pad and the B-electrode bonding pad are respectively electrically connected with the back circuit board;
• the light-emitting chip comprises an electrode A and an electrode B which have opposite polarities, and the electrode A and the electrode B are located on a same plane of the light-emitting chip;
• the electrode A and the electrode B are respectively die-bonded on the A-electrode bonding pad and the B-electrode bonding pad, wherein,
• the front circuit board is divided into a die bonding area and a non-die bonding area;
• and the light-emitting chip is located in the die bonding area of the front circuit board, and the non-die bonding area is covered with black ink.