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Vacuum drying equipment and preparation method of display panel

A technology of vacuum drying equipment and vacuum pump, applied in semiconductor/solid-state device manufacturing, printing, printing devices, etc., can solve the problems of uncontrollable alignment and orientation, reduced device performance of inkjet printers, and low mobility of organic thin films.

Inactive Publication Date: 2018-04-27
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of ink, which uses high and low boiling point solvents, can improve the uniformity of the film macroscopically during the film-forming and drying process, but the arrangement and orientation of the molecules in the ink cannot be controlled, showing a disordered state, resulting in organic films. Low mobility, which further degrades the performance of inkjet printer devices

Method used

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  • Vacuum drying equipment and preparation method of display panel
  • Vacuum drying equipment and preparation method of display panel

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Embodiment Construction

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...

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Abstract

The invention discloses vacuum drying equipment and a preparation method of a display panel. The vacuum drying equipment comprises a vacuum cavity, a thermostat, an electric field generation device and a vacuum pump. The thermostat is located below the vacuum cavity. The electric field generation device is provided with a first metal plate and a second metal plate which are arranged in the vacuumcavity. The first metal plate is located on the bottom surface of the vacuum cavity. The second metal plate is arranged over the first metal plate in parallel. The second metal plate divides the vacuum cavity into a first sub-cavity located between the first metal plate and the second metal plate and a second sub-cavity located on the other side of the second metal plate. The second metal plate isprovided with a plurality of volatilization through holes communicating with the first sub-cavity and the second sub-cavity. The first metal plate and the second metal plate are used for being connected with a circuit. The vacuum pump communicates with the second sub-cavity. The vacuum drying equipment can achieve effective control over molecular alignment, so that the migration rate of an organic thin film is increased to the maximum extent.

Description

technical field [0001] The invention relates to the field of inkjet printing, in particular to a vacuum drying device and a method for preparing a display panel. Background technique [0002] Organic light-emitting diodes have broad application prospects in full-color display, backlight and solid-state lighting, and have attracted widespread attention. The solution-processed organic light-emitting diodes based on inkjet printing technology are more popular due to their advantages of low cost and easy realization of large-area production, but the device performance (such as: high operating voltage, low current efficiency, etc.) Organic light-emitting diodes still have a certain distance. Therefore, solution-type organic light-emitting diodes need to be greatly improved in terms of increasing carrier mobility and balancing carrier injection and transport to improve the overall performance of the device. [0003] The film in the pixel formed by inkjet printing technology will ...

Claims

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Application Information

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IPC IPC(8): B41J11/00B41J2/01H01L51/56
CPCB41J2/01B41J11/002H10K71/135H10K71/00
Inventor 余磊
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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