OLED device and preparation method

• Main Authors: SUN YUJUN, WU CONGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 29.10.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention relates to an OLED device and a preparation method, the OLED device comprises a substrate, and an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, a cathode and a sealing film layer which are arranged on the substrate in sequence, the light-emitting layer comprises a red light area, a blue light area and a green light area, and the red light area is provided with a red light organic light-emitting element; the blue light area of the light-emitting layer is provided with a blue light organic light-emitting element, and the green light area is excited and formed by a hole transport layer material, and by adopting the technical scheme, the structural design of the device is simplified, and the preparation and production cost of the OLED is reduced. 本发明涉及一种OLED器件及制备方法，其包括基板以及在基板上依次设置阳极、空穴注入层、空穴传输层、发光层、电子传输层、电子注入层、阴极和密封薄膜层，所述发光层包括红光区域、蓝光区域和绿光区域，所述红光区域设有红光有机发光元件；所述发光层的蓝光区域设有蓝光有机发光元件，所述绿光区域由空穴传输层材料激发成型，采用以上技术方案简化了器件