A series of PHOLED (phosphorescent organic light-emitting diode) materials

A luminescent material and electroluminescence technology, applied in the field of phosphorescent OLED materials, can solve the problems of small luminous contribution and difficulty in improving luminous efficiency, etc.
CN105503961AActive Publication Date: 2016-04-20SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Publication Date
2016-04-20

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Abstract

The invention discloses a series of PHOLED (phosphorescent organic light-emitting diode) materials. The general structural formula of the PHOLED materials is represented as a formula I-1 or a formula I-2. A series of iridium complex electrophosphorescent light-emitting materials with cyclohexyl groups and cyclohexene groups are provided on the basis that electrophosphorescent materials require high thermal stability, high quantum efficiency and lower doping ratio. The compounds have the characteristics of excellent film-forming properties, low probability of crystallization, high luminous efficiency and the like, raw materials are easy to obtain, preparation is simple and convenient, the total yield is high, the cost of phosphorescent materials is reduced greatly, and the PHOLED materials have important application values.
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Description

technical field

[0001] The invention belongs to the field of organic electroluminescence display and relates to a series of phosphorescent OLED materials. Background technique

[0002] Organic electroluminescence (referred to as OLED) and related research As early as 1963, pope et al. first discovered the electroluminescence phenomenon of organic compound single crystal anthracene. In 1987, Kodak Corporation of the United States made an amorphous film device by evaporating organic small molecules, which reduced the driving voltage to less than 20V. This type of device is ultra-thin, fully cured, self-illuminating, high brightness, wide viewing angle, fast response speed, low driving voltage, low power consumption, bright color, high contrast, simple process, good temperature characteristics, and can realize flexible display. And other advantages, can be widely used in flat panel displays and surface light sources, so it has been widely researched, developed and used. [00...

Claims

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