OLED display device and method for manufacturing OLED display device

A technology for display devices and packaging layers, which is applied in the manufacture of semiconductor/solid-state devices, organic semiconductor devices, semiconductor devices, etc., can solve the problems of poor adhesion between the CPL layer and the film packaging layer, reduce the phenomenon of film stripping, and solve the problem of easy Effects of damage and improved bending reliability

Active Publication Date: 2021-07-13
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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Problems solved by technology

[0005] The object of the present invention is to provide a kind of OLED display device and the preparation method of OLED display device, solve the problem that the CPL layer of existing OLED display device and film encapsulation layer have poor adhesion

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  • OLED display device and method for manufacturing OLED display device
  • OLED display device and method for manufacturing OLED display device
  • OLED display device and method for manufacturing OLED display device

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Embodiment Construction

[0023] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0024] see figure 1 , a schematic structural diagram of the OLED display device of this embodiment. The OLED display device 100 provided in this embodiment includes a substrate 1 , an OLED unit 3 , an optical coupling layer 7 and an encapsulation layer 8 for encapsulating the OLED unit 3 stacked in sequence. The material of the substrate 1 is selected as flexible glass, the OLED unit 3 is prepared on the substrate 1, and serves as the light-emitting unit of the OLED display device 100, and the refractive index suitable for the optical coupling layer 7 prepared on the OLED unit 3 satisfies certain conditions, so that The light extraction rate of the OLED unit...

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Abstract

An OLED display device, comprising a sequentially stacked substrate, an OLED unit, an optical coupling layer, and an encapsulation layer for encapsulating the OLED unit, the optical coupling layer is made of an inorganic material suitable for light extraction, and is directly formed on the on the OLED unit. A method for preparing an OLED display device includes: S1, preparing an OLED unit on a substrate; S2, forming an optical coupling layer on the OLED unit by depositing an inorganic material; S3, forming an encapsulation layer on the optical coupling layer to encapsulate the OLED unit. The OLED display device and the preparation method of the OLED display device provided in this embodiment increase the adhesion between the optical coupling layer and the encapsulation layer by preparing the optical coupling layer from inorganic materials, and solve the problem that the optical coupling layer is easily damaged, so that When the OLED display device is bent, the phenomenon of defilming of the optical coupling layer and the encapsulation layer is reduced, and the bending reliability of the OLED display device is improved.

Description

technical field [0001] The invention relates to the technical field of light emitting diodes, in particular to an OLED display device and a method for preparing the OLED display device. Background technique [0002] Fabricating organic light-emitting diodes (Organic Light-Emitting Diode, OLED) on flexible substrates to realize flexible displays is an important direction for the development of future display technologies. [0003] In the related art, in thin-film encapsulated OLED display devices, in order to reduce the light loss of the OLED display device, a CPL layer (Coupling Layer, optical coupling layer) is inserted between the OLED light-emitting unit and the encapsulation layer to improve the light extraction rate. . The CPL layer is mostly made of organic materials through an evaporation process, and the adhesion between the CPL layer made of organic materials and the thin film encapsulation layer is poor. [0004] Therefore, it is necessary to provide a new OLED d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/85H10K50/858H10K50/844H10K2102/311H10K71/00
Inventor 李雪原闵超刘胜芳董晴晴张浩杰田景文
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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