Light-emitting diode display back plate, manufacturing method and display device for light-emitting diode display back plate

Abstract

The invention provides a light-emitting diode display backplane, a manufacturing method thereof, and a display device, which belong to the display field. The manufacturing method of the light-emitting diode display backplane includes: forming a transparent and conductive anode electrode on a substrate; forming a pixel region defined by a first pixel defining layer and a second pixel defining layer on the substrate formed with the anode electrode, The second pixel defining layer is located on the first pixel defining layer, the first pixel defining layer is formed of a hydrophilic material, and the second pixel defining layer is formed of a hydrophobic material; in the pixel area Injecting a luminescent material into the luminescent material to form a luminescent layer composed of the luminescent material; forming a conductive cathode electrode on the substrate on which the luminescent layer is formed. The technical scheme of the present invention enables the luminous material to be flatly spread on the backplane of the light-emitting diode display, thereby improving the luminous quality of the backplane of the light-emitting diode display.

Description

technical field [0001] The invention relates to the field of display, in particular to a light-emitting diode display backplane, a manufacturing method thereof, and a display device. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode) / PLED (polymer light-emitting diode, polymer light-emitting diode) display backplane is composed of glass substrate, ITO (indium tin oxide, indium tin oxide) anode (Anode), organic Emitting Material Layer (Emitting Material Layer) and Cathode (Cathode), etc., where the thin and transparent ITO anode and metal cathode sandwich the organic light-emitting layer like a sandwich, when the voltage injected into the anode hole (Hole) and When the electrons from the cathode are combined in the organic light emitting layer, the organic material in the organic light emitting layer is excited to emit light. [0003] At present, when preparing a light-emitting diode display backplane, a photoresist is coated on a...

AI Technical Summary

Problems solved by technology

Mainly utilize 60% CF at present 4 In the environment of CVD (Chemical Vapor Deposition, chemical vapor deposition), the surface of the PDL layer is fluorinated to improve the wetting characteristics of the surface of the PDL layer, but this method needs to increase the investment of equipment and increase the cost of the LED display backplane. Manufacturing cost, not conducive to mass production

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