Collard & Roe, P.C.
Organic light-emitting diode (OLED) display panel, pixel define layer (PDL) and preparation method thereof
A pixel define layer (PDL) of an organic light-emitting diode (OLED) display panel, which comprises a first PDL (21) and a second PDL (22) overlapped on the first PDL. The first PDL (21) is a hydrophobic film layer provided with openings (210) corresponding to luminous regions of sub-pixel units; and the second PDL (22) is a hydrophilic film layer provided with openings (220) corresponding to the openings (210) of the first PDL. The PDL can avoid the mutual pollution of organic light-emitting materials in luminous regions of different colors in adjacent sub-pixel units in the preparation process.
BOE TECHNOLOGY GROUP CO., LTD
H H H H H H H H H H H H H H H H H
H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L
inventional inventional inventional additional inventional inventional inventional inventional inventional additional inventional inventional inventional inventional inventional additional inventional
Dongfang Wei Yanzhao Chunsheng
Wang Liu Li Jiang