| abstract |
The present invention provides a blue organic electroluminescent device, wherein the blue organic electroluminescent device includes a first electrode layer, a first hole injecting layer located in the first electrode layer, a second hole injecting layer located in the first hole injecting layer, A blue light emitting material layer located in the hole transporting layer, an electron transporting layer located in the blue light emitting material layer, and an electron transporting layer located in the electron transporting layer, And a thickness of the second hole injection layer is 85 nm to 105 nm. The present invention further provides a display device including the device. The blue organic electroluminescent device of the present invention can be applied to 3C products to control the blue energy component having a wavelength of 435 nm or less to 0.2% or less, which greatly reduces the damage to the eye in the corresponding wavelength band and uses the blue resistance protective film It is possible to prevent a drop in the screen brightness caused by the display device. |