Composition, film manufacturing method, as well as functional device and manufacturing method therefor

A technology of functional components and manufacturing methods, which is applied in the field of functional components and their manufacturing, and can solve problems such as inability to complete functional film functions, precipitation, unevenness, etc.

Inactive Publication Date: 2009-01-28
SEIKO EPSON CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, when the functional material is a multi-component system, there is also the disadvantage of phase separation, resulting in inhomogeneity, so that the original function of the functional film cannot be completed.
[0011] Furthermore, when the concentration of the ejected composition is increased by forcibly using a material with low solubility that cannot be easily used in this way, precipitation and pore clogging etc. will occur.
In the case of reducing the concentration to prevent clogging, in order to express the characteristics of functional materials, it is necessary to spray multiple times, and there are disadvantages such as the need to increase the number of processes.

Method used

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  • Composition, film manufacturing method, as well as functional device and manufacturing method therefor
  • Composition, film manufacturing method, as well as functional device and manufacturing method therefor
  • Composition, film manufacturing method, as well as functional device and manufacturing method therefor

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Effect test

no. 1 approach

[0040] The first embodiment of the composition of the present invention is a composition used when a spray device is used to form a graphic film of a functional material. A composition composed of the solvent of the above-mentioned benzene derivatives and a functional material.

[0041] Through this embodiment, non-polar or weakly polar functional materials can be dissolved well, and the selectivity of functional materials can be expanded. At the same time, in the case of using a solvent with a relatively low vapor pressure, from the viewpoint of delayed drying, it is possible to prevent solvent The hole plugging during ejection makes stable ejection possible, especially through the combination of post-heating, or pressurization or decompression immediately after heating and heating, it can prevent the precipitation and phase separation of the content during film formation after ejection worked.

[0042] As a solvent suitable for the first embodiment, which contains at least ...

no. 2 approach

[0055] The second embodiment of the composition of the present invention is a composition comprising a solvent including at least dodecylbenzene and at least one fluorene-based polymer derivative among the following compounds 1 to 5. That is, the second embodiment is that in the composition of the present invention, as the second embodiment of the present invention, it includes at least benzene derivatives having at least one substituent and the sum of the carbon atoms of the substituents is 3 or more. The solvent of the material adopts a solvent containing at least dodecylbenzene, and as a functional material suitable for the second embodiment, at least one fluorene polymer derivative in compounds 1 to 5 is used.

[0056] This embodiment is a more preferable solution than the aforementioned first embodiment. Using a solvent with a low vapor pressure such as dodecylbenzene, the following results are effective from the viewpoint of delayed drying. That is, to prevent hole pluggi...

no. 3 approach

[0078] The third embodiment of the composition of the present invention is composed of at least one benzene with more than one substituent, the sum of the carbon atoms of the substituent is 3 or more, and the vapor pressure (room temperature, the same below) is 0.10 to 10 mmHg. A solvent for derivatives, and a composition composed of functional materials. That is, the third embodiment is that in the composition of the present invention, as the third embodiment of the present invention, it contains at least one or more substituents, and the sum of the carbon atoms of the substituents is 3 or more. The solvent used is a solvent containing at least benzene derivatives with a vapor pressure of 0.10-10 mmHg.

[0079] Through this embodiment, while the non-polar or weakly polar functional materials are well dissolved, the following results are also effective, that is, it is possible to prevent the hole from being blocked when the solvent is sprayed out, making stable spraying possib...

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Abstract

A composition, which can be used in an ink jet printing method, can use either a non-polar or a weakly polar material as a functional material, prevents clogging at dispensing time, achieves stable dispensing, and prevents precipitation of content matter during dispensing and phase separation during film formation, a uniform, homogenous functional film formed using this composition and a manufacturing method therefor, as well as an organic EL device or other such display device and a manufacturing method therefor. A composition of the present invention consists of a functional material, and a solvent comprising at least one benzene derivative, which has one or more substituents, and these substituents have 3 or more carbon atoms in total. A functional film of the present invention is formed using the above-mentioned composition. A display device of the present invention comprises luminescent material layers formed using the above-mentioned composition between two electrodes. The above-mentioned display device is an organic EL device or the like.

Description

[0001] This application is a branch of a PCT application whose application number is CN00800987.2 (the international filing date is March 29, 2000), and the title of the invention is "manufacturing method of composition and film, functional element and manufacturing method thereof", which has entered the national stage. case application. technical field [0002] The present invention relates to a composition capable of being ejected stably (discharging composition) for forming a patterned film of a functional material using a dispensing device, and a film manufacturing method for forming a uniform film (functional film) using the composition, and A functional element (display element) including a luminescent material layer formed using the above composition, especially an organic EL element (display element) suitable for light-emitting display applications, and a manufacturing method thereof. Background technique [0003] Conventionally, patterning of functional materials ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L65/00C09D11/10C09K11/06B41J2/01H05B33/14C09D11/30
Inventor 神户贞男关俊一
Owner SEIKO EPSON CORP
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