Benzoheterocyclic compound, display panel and display device

A technology for heterocyclic compounds and display panels, applied in the fields of organic chemistry, chemical instruments and methods, organic semiconductor devices, etc., can solve the problems of reduced color purity, insufficiently high refractive index, large refractive index difference, etc.
CN109293645BActive Publication Date: 2021-05-11WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN TIANMA MICRO ELECTRONICS CO LTD
Publication Date
2021-05-11

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Abstract

The present invention provides a kind of benzoheterocyclic compound, it has the structure shown in formula (I); Wherein R 1 Any one selected from hydrogen atom, C1-C20 alkyl, C1-C20 alkoxy, phenyl, naphthyl, anthracenyl, phenanthrenyl; Y 1 and Y 2 each independently selected from a carbon atom, an oxygen atom or a sulfur atom, and Y 1 and Y 2 One of them is a carbon atom; Ar 1 Selected from single bond or substituted or unsubstituted: any one of phenyl, naphthyl, anthracenyl, phenanthrenyl, acenaphthenyl, and aromatic heterocycle; m is 0 or 1; D 1 and D 2 each independently selected from aryl or heteroaryl, Ar 2 and Ar 3 each independently aryl or heteroaryl. Using the benzoheterocyclic compound of the present invention as the material of the capping layer (CPL) of the OLED device can obtain high light extraction efficiency and avoid the problem of color purity reduction of the blue light-emitting device.
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Description

technical field

[0001] The present invention relates to the technical field of organic electroluminescence materials, in particular to a benzo heterocyclic compound, a display panel and a display device containing the benzo heterocyclic compound. Background technique

[0002] According to the direction in which the organic light emitting layer emits light, the OLED display can be classified into a bottom emission OLED display and a top emission OLED display. In a bottom emission OLED display, light is emitted toward a substrate, a reflective electrode is formed on an organic light emitting layer, and a transparent electrode is formed below the organic light emitting layer. If the OLED display is an active matrix OLED display, the thin film transistors formed therein partially do not transmit light, resulting in a reduced light emitting area. In a top-emitting OLED display, a transparent electrode is formed above the organic light-emitting layer, and a reflective electrode i...

Claims

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