Electron transport layer ink-jet printing ink and preparation method thereof

An electron transport layer, inkjet printing technology, applied in inks, circuits, electrical components, etc., can solve the problems of easy mutual dissolution, high cost, and high production cost of OLED devices, and achieve the effect of avoiding mutual dissolution and meeting process requirements.

CN107706318AActive Publication Date: 2018-02-16SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Publication Date: 2018-02-16

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Abstract

The invention provides an electron transport layer ink-jet printing ink and a preparation method thereof. According to the preparation method of the electron transport layer ink-jet printing ink, withan ionic type conjugated polyelectrolyte adopted as a solute and an alcohol compound adopted as a solvent, the ratio, viscosity and surface tension of each component are adjusted, so that the electron transport layer ink-jet printing ink suitable for the ink-jet printing technology can be obtained; and the electron transport layer ink-jet printing ink satisfies the manufacturing process requirements of ink-jet printing, realizes the ink-jet printing type of an electron transport, and can assist in avoiding the mutual solution of the electron transport layer and adjacent structural layers in an OLED preparation process, and realizing full-solution OLED device preparation. The electron transport layer ink-jet printing ink of the invention is prepared by using the above preparation method, satisfies the manufacturing process requirements of the ink-jet printing, realizes the ink-jet printing type of the electron transport, and can assist in realizing the full-solution OLED device preparation.

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Description

technical field

[0001] The invention relates to the field of display technology, in particular to an electron transport layer inkjet printing ink and a preparation method thereof. Background technique

[0002] Organic Light Emitting Display (OLED) has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and With many advantages such as large-area full-color display, it is recognized by the industry as a display device with the most potential for development.

[0003] According to the driving method, OLED can be divided into two categories: passive matrix OLED (Passive Matrix OLED, PMOLED) and active matrix OLED (Active Matrix OLED, AMOLED), namely direct addressing and thin film transistor matrix addressing. Among them, AMOLED has pixels arranged in an array, belongs to the active display type, has high luminous effici...

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

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