Organic light emitting diode display panel comprising multi-layer encapsulation
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorZhao Li
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Abstract
The present application provides an organic light emitting diode (OLED) display panel and a package method thereof, the OLED display panel includes a thin film transistor layer, an OLED light emitting layer, and a thin film encapsulation layer, which are sequentially disposed on a substrate; the thin film encapsulation layer includes laminated disposing inorganic encapsulation layers and an organic encapsulation layer; wherein the material forming the organic encapsulation layer is methyl methacrylate-N-isopropyl acrylamide copolymer solution, which is spread on the surface of the inorganic encapsulation layer and after curing, used to form an organic encapsulation layer.
Claims10
An organic light emitting diode (OLED) display panel, comprising:
- a substrate;
- a thin film transistor layer disposed on the substrate;
- an OLED emissive layer disposed on the thin film transistor layer;
- a thin film encapsulation layer disposed on the OLED emissive layer and used to encapsulate the OLED emissive layer;
- wherein the thin film encapsulation layer comprises a hydrophilic first inorganic encapsulation layer, a hydrophilic second inorganic encapsulation layer, and an amphiphilic organic encapsulation layer;
- wherein material of the organic encapsulation layer comprises methyl methacrylate-N-isopropyl acrylamide copolymers, the organic encapsulation layer is disposed directly on the first inorganic encapsulation layer, the second inorganic encapsulation layer is disposed directly on the organic encapsulation layer, and the organic encapsulation layer has a uniform thickness;
- and
- wherein the methyl methacrylate-N-isopropyl acrylamide copolymers located at an interface between the organic encapsulation layer and the first inorganic encapsulation layer are distributed in a way that hydrophilic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are close to the first inorganic encapsulation layer and hydrophobic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are away from the first inorganic encapsulation layer, and the methyl methacrylate-N-isopropyl acrylamide copolymers located at an interface between the organic encapsulation layer and the second inorganic encapsulation layer are distributed in a way that hydrophilic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are close to the second inorganic encapsulation layer and hydrophobic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are away from the second inorganic encapsulation layer.
An organic light emitting diode (OLED) display panel, comprising:
- a substrate;
- a thin film transistor layer disposed on the substrate;
- an OLED emissive layer disposed on the thin film transistor layer;
- a thin film encapsulation layer disposed on the OLED emissive layer and used to encapsulate the OLED emissive layer;
- wherein the thin film encapsulation layer comprises a hydrophilic first inorganic encapsulation layer, a hydrophilic second inorganic encapsulation layer, and an amphiphilic organic encapsulation layer;
- wherein material of the organic encapsulation layer comprises methyl methacrylate-N-isopropyl acrylamide copolymers, the organic encapsulation layer is disposed directly on the first inorganic encapsulation layer, and the second inorganic encapsulation layer is disposed directly on the organic encapsulation layer;
- and
- wherein the methyl methacrylate-N-isopropyl acrylamide copolymers located at an interface between the organic encapsulation layer and the first inorganic encapsulation layer are distributed in a way that hydrophilic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are close to the first inorganic encapsulation layer and hydrophobic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are away from the first inorganic encapsulation layer, and the methyl methacrylate-N-isopropyl acrylamide copolymers located at an interface between the organic encapsulation layer and the second inorganic encapsulation layer are distributed in a way that hydrophilic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are close to the second inorganic encapsulation layer and hydrophobic ends of the methyl methacrylate-N-isopropyl acrylamide copolymers are away from the second inorganic encapsulation layer.
Dependencies are inferred from the claim text.