LED device, display screen and packaging process thereof

The embodiment of the invention discloses an LED device, a display screen and a packaging process thereof. The LED device comprises an insulating filler, an LED light-emitting chip, a lead and multiple layers of circuit components, the multiple layers of circuit components are arranged in a stacked manner, and a first electrode is arranged on the upper surface of the top layer circuit component and is used for being welded to a circuit board. The multiple layers of circuit components are provided with a through step hole, and a step surface is formed on the surface of the circuit components. Acircuit is arranged on the step surface and is electrically connected with the first electrode, the LED light-emitting chip is arranged in the stepped hole, and the light-emitting surface of the LEDlight-emitting chip is arranged back to the top circuit component. A second electrode is arranged on the back face of the LED light-emitting chip and is electrically connected with the circuit througha lead, and the back face