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Top-emitting device and manufacturing method thereof

A technology for top-emitting devices and devices, applied in the field of top-emitting devices and their preparation

Active Publication Date: 2019-05-17
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a top-emitting device and its preparation method for the problem of how to improve the viewing angle characteristics of the device.

Method used

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  • Top-emitting device and manufacturing method thereof
  • Top-emitting device and manufacturing method thereof

Examples

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preparation example Construction

[0028] In order to prepare the outcoupling layer 190 with a double-layer structure, the present invention adopts the method of inkjet printing. Specifically, the preparation method of the top-emitting device 100 in an embodiment includes:

[0029] S1: coating an anode layer 120 on the substrate 110 .

[0030] In this embodiment, Ag and ITO are sequentially coated on the glass substrate 110 to form a laminated double-layer film of Ag and ITO, and the glass substrate 110 coated with Ag and ITO is ultrasonically treated in a cleaning agent such as alcohol , and rinse with deionized water to preliminarily complete the cleaning of the glass substrate 110 . Then, the pre-cleaned glass substrate 110 is placed in a mixed solution of acetone and ethanol for ultrasonic treatment to remove oil on the glass substrate 110 . Place the cleaned glass substrate 110 in a clean environment to dry, then use ultraviolet light and ozone to clean, and bombard the surface of the glass substrate 110 ...

Embodiment 1

[0046] Coating Ag and ITO on the glass substrate 110 to form a laminated double-layer film of Ag and ITO, the glass substrate 110 coated with Ag and ITO is ultrasonically treated in a cleaning agent, such as alcohol, and is carried out with deionized water. Rinse, preliminarily complete the cleaning of the glass substrate 110, then place the preliminary cleaned glass substrate 110 in a mixed solution of acetone and ethanol for ultrasonic treatment to remove the oil on the glass substrate 110, and clean the glass substrate 110 after cleaning 110 is placed in a clean environment for drying, and then cleaned with ultraviolet light and ozone, and bombarded with a low-energy positive ion beam on the surface of the glass substrate 110 coated with Ag / ITO, so that an anode layer 120 is formed on the surface of the glass substrate 110 ;

[0047] The vacuum chamber was evacuated to 1×10 －5 Pa, and vacuum-deposited 4,4′,4″-tris(N-3-methylphenyl-N-phenylamino)triphenylamine (m-MTDATA) on...

Embodiment 2

[0056] Coating Ag and ITO on the glass substrate 110 to form a laminated double-layer film of Ag and ITO, the glass substrate 110 coated with Ag and ITO is ultrasonically treated in a cleaning agent, such as alcohol, and is carried out with deionized water. Rinse, preliminarily complete the cleaning of the glass substrate 110, then place the preliminary cleaned glass substrate 110 in a mixed solution of acetone and ethanol for ultrasonic treatment to remove the oil on the glass substrate 110, and clean the glass substrate 110 after cleaning 110 is placed in a clean environment for drying, and then cleaned with ultraviolet light and ozone, and bombarded with a low-energy positive ion beam on the surface of the glass substrate 110 coated with Ag / ITO, so that an anode layer 120 is formed on the surface of the glass substrate 110 ;

[0057] The vacuum chamber was evacuated to 1×10 －5 Pa, and vacuum-deposited 4,4′,4″-tris(N-3-methylphenyl-N-phenylamino)triphenylamine (m-MTDATA) on...

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Abstract

The invention relates to a top-emitting device and a preparation method thereof. The preparation method comprises the steps of: dissolving a first material and a second material in a solvent to form a solution, wherein the first material and the second material are incompatible In the solution, the concentration of the first material reaches the saturation concentration of the first material, the concentration of the second material is lower than the saturation concentration of the second material, and the concentration of the first material The refractive index is greater than the refractive index of the second material; the solution is sprayed on the surface of the cathode layer by inkjet printing, and the first coupling output composed of the first material is sequentially formed on the surface of the cathode layer layer and a second outcoupling layer composed of said second material. The above-mentioned top-emitting device and the preparation method thereof can improve the viewing angle characteristics of the top-emitting device and optimize the viewing angle.

Description

technical field [0001] The invention relates to the field of organic light-emitting display technology, in particular to a top-emitting device and a preparation method thereof. Background technique [0002] Organic light-emitting diodes (OLEDs) include top-emitting and bottom-emitting OLEDs. For top-emitting OLEDs, they have a microcavity effect that can improve the luminous efficiency and color purity of OLEDs. Therefore, top-emitting OLEDs are widely used. However, the microcavity effect improves the light-emitting directivity of the OLED, resulting in strong light intensity and high color purity perpendicular to the light-emitting surface, but when it is at a certain angle to the light-emitting surface, the light is weak and the color purity is also reduced, resulting in a large viewing angle. worse. Contents of the invention [0003] Based on this, it is necessary to provide a top-emitting device and a preparation method thereof for the problem of how to improve the v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K50/00H10K50/85H10K50/854H10K71/00
Inventor 何麟
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD