1results about How to "Increased maximum brightness" patented technology

The application discloses a lamp bead, which comprises a substrate and a light emitting chip, the front surface of the substrate is provided with a die bonding pad area and a central area for fixing electrically connecting the light emitting chip, the die bonding pad area is distributed around the central area, and the front surface of the substrate is covered with an ink layer except the die bonding pad area; wherein, the die bonding pad area is provided with an electrode pad group for electrically connecting the light emitting chip, the electrode pad group is distributed outwardly and spaced apart from the central area; the substrate is provided with a through hole, the through hole is provided with a conductive material to form a conductive column, the electrode pad group arranged on the front surface of the substrate and a pin arranged on the back surface of the substrate are electrically connected with the conductive column through a conductive wire. By using the application, the brightness is high, and the black display degree is good.