A range of phosphorescent oled materials

A technology of luminescent materials and host materials, applied in the field of phosphorescent OLED materials, which can solve the problems of difficulty in improving luminous efficiency and small luminous contribution
CN105503961BActive Publication Date: 2019-02-12SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Publication Date
2019-02-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a series of phosphorescent OLED materials. The general structural formula of the phosphorescent OLED material is shown in formula I-1 or formula I-2. The present invention provides a series of iridium complex electrophosphorescent materials with cyclohexyl and cyclohexene groups based on the need for high thermal stability, high quantum efficiency and low doping ratio of electrophosphorescent materials . This type of compound has the characteristics of excellent film-forming property, not easy to crystallize, high luminous efficiency, easy to obtain raw materials, simple preparation, high overall yield, greatly reduced cost of phosphorescent materials, and has important application value.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More