▎ 摘　　要

NOVELTY - A light emitting device (10) comprises an electrode (600), a functional layer (100) arranged on the patterned electrode (600), a patterned insulating layer (200) arranged on the functional layer (100), a patterned electrode (300) arranged on the patterned insulating layer, a functional layer (400) covering the patterned electrode (300), a light-emitting layer (500) covering the patterned functional layer (400) and the functional layer (100), a functional layer (F3) arranged on the light-emitting layer, and an electrode (E3) arranged on the functional layer (F3). One of the electrode (600) and the patterned electrode (300) is an anode, and the other is a cathode, and the electrode (600) is the same as the electrode (E3). One of the functional layer (100) and the patterned functional layer (400) is an electronic functional layer, the other is the hole functional layer. When the functional layer (100) is a hole functional layer, the functional layer (F3) is a hole functional layer. USE - Light emitting device. ADVANTAGE - The light emitting device is capable of solving the problem of hole and electron injection is not balanced. The hole and the electron injection balance is balanced, so that the display effect of the quantum dot light-emitting device is improved. The current efficiency and external quantum efficiency (QE) of the device are improved, and the service life of the LED device is prolonged. DETAILED DESCRIPTION - A light emitting device (10) comprises an electrode (600), a functional layer (100) arranged on the patterned electrode (600), a patterned insulating layer (200) arranged on the functional layer (100), a patterned electrode (300) arranged on the patterned insulating layer, a functional layer (400) covering the patterned electrode (300), a light-emitting layer (500) covering the patterned functional layer (400) and the functional layer (100), a functional layer (F3) arranged on the light-emitting layer, and an electrode (E3) arranged on the functional layer (F3). One of the electrode (600) and the patterned electrode (300) is an anode, and the other is a cathode, and the electrode (600) is the same as the electrode (E3). One of the functional layer (100) and the patterned functional layer (400) is an electronic functional layer, the other is the hole functional layer. When the functional layer (100) is a hole functional layer, the functional layer (F3) is a hole functional layer. When the functional layer (100) is an electronic functional layer, the functional layer (F3) is an electronic functional layer. The electron functional layer is close to the cathode, and the hole functional layer is close to the anode. An INDEPENDENT CLAIM is included for manufacture of light emitting device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the light emitting device. 10Light emitting device 100,400Functional layer 200Patterned insulating layer 300,600Electrodes 500Light emitting layer