OLED COLOR DISPLAY DEVICE

摘要

The present invention provides an OLED color display device, comprising a substrate (1), an anode (11), a thin film transistor array (21), a Hole Injection Layer (22), a Hole Transport Layer (23), a light emitting layer (3), an Electron Transport Layer (24), a cathode (12), a package cover plate (2), a color conversion layer (4) and a seal frame (5); the light emitting layer (3) comprises a first light emitting layer (31) and the second light emitting layer (32), and both the first light emitting layer (31) and the second light emitting layer (32) are manufactured by host material doped with guest material, and the guest material comprises luminescent material and electron transport material; the first light emitting layer (31) is a blue light emitting layer, and the second light emitting layer (32) is a red, green lights commonly emitting layer, a yellow light emitting layer or a green light emitting layer; lights emitted by the first light emitting layer (31) and the second light emitting layer (32) synthesize white light or blue, green light possessing higher energy efficiency and luminescence efficiency. The power consumption is low.

主权项

1. An OLED color display device, comprising a substrate, an anode formed on the substrate, a thin film transistor array formed on the anode, a Hole Injection Layer formed on the thin film transistor array, a Hole Transport Layer formed on the Hole Injection Layer, a light emitting layer formed on the Hole Transport Layer, an Electron Transport Layer formed on the light emitting layer, a cathode formed on the Electron Transport Layer, a package cover plate formed on the cathode and laminated with the substrate, a color conversion layer formed at an inner side of the package cover plate and a seal frame adhering the substrate and the package cover plate;
the light emitting layer comprises a first light emitting layer and a second light emitting layer, and both the first light emitting layer and the second light emitting layer are manufactured by host material doped with guest material, and the guest material comprises luminescent material and electron transport material; the first light emitting layer is a blue light emitting layer, and the second light emitting layer is a red, green lights commonly emitting layer, a yellow light emitting layer or a green light emitting layer; lights emitted by the first light emitting layer and the second light emitting layer synthesize white light or blue, green light; the color conversion layer comprises a blue light filter unit, a green light filter unit and a red light conversion unit which are located in intervals; the white light or the blue, green light is filtered by the blue light filter unit to be blue light, and is filtered by the green light filter unit to be green light, and is converted by the red light conversion unit to be red light to achieve color display.