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A kind of OLED packaging structure and preparation method thereof

A technology of packaging structure and film layer, which is applied in the field of OLED display, can solve the problems of uneven light emission, mixed light, low brightness, etc., and achieve good display effect and scientific packaging structure

Active Publication Date: 2022-07-29
ANHUI SEMICON INTEGRATED DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Since OLED is a self-illuminating device, light is emitted from various angles, causing the light to diffuse from this pixel to other adjacent pixels, resulting in mixed light, uneven light emission, low brightness and other phenomena that affect the display effect.

Method used

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  • A kind of OLED packaging structure and preparation method thereof
  • A kind of OLED packaging structure and preparation method thereof

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Embodiment Construction

[0037] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention will be described in further detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation. It should be noted that the orientation or positional relationship indicated by the terms "up", "down", "front", "rear", "left", "right", "vertical", "inside", "outside", etc. Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood to limit the invention. In the following em...

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Abstract

The invention discloses an OLED encapsulation structure and a preparation method thereof. The encapsulation structure comprises a substrate and an anode layer arranged on the substrate, and the encapsulation structure further comprises an OLED layer and an ALD film arranged on the anode layer in sequence from bottom to top layer, the first silicon nitrogen compound layer, the PMMA layer, the second silicon nitrogen compound layer, the insulating filter element layer and the glass cover plate, the encapsulation structure is formed with a through ALD film layer, the first silicon nitrogen compound layer and the PMMA layer The annular cavity is provided with a reflective film layer in the annular cavity. The present invention can control the light from diffusing to adjacent sub-pixels to cause mixed light, uneven light emission, low brightness and the like.

Description

technical field [0001] The invention belongs to the field of OLED display, and particularly relates to an OLED packaging structure and a preparation method thereof. Background technique [0002] OLED (Organic Light Emitting Display) is known as the dark horse of next-generation display technology, and has been widely used in electronic products, business, transportation, industrial control, and medical fields. In the continuous strengthening of research on OLED technology, OLED technology will be further improved, and OLED displays will usher in explosive growth. Since OLEDs are extremely sensitive to water, oxygen, and pollutants, it is very necessary to use encapsulation. Nowadays, the packaging method of OLED devices basically adopts the TFE packaging method, that is, ALD is prepared on the OLED layer, then SiNx is prepared, and then ink jet printing (IJP) polymer (PMMA) is performed on it, and then SiNx is performed. preparation. [0003] Since OLED is a self-luminous...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/38H10K50/856H10K50/844H10K50/86H10K71/00
Inventor 朱平
Owner ANHUI SEMICON INTEGRATED DISPLAY TECH CO LTD
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