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Color ink bubble removing device and method for organic electric exciting luminous element ink-jet preparation

A technology of electro-luminescent elements and bubbles, applied in printing and other directions, can solve the problems of increasing process costs, unable to control the amount of ink and production time, and consuming large amounts of ink.

Inactive Publication Date: 2004-07-14
RITDISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this action consumes a large amount of ink, and the work can only be started after the ink containing air bubbles is discharged. It is impossible to control the amount of ink required for production and the production time, which increases the cost of the process. It is not a good solution.

Method used

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  • Color ink bubble removing device and method for organic electric exciting luminous element ink-jet preparation
  • Color ink bubble removing device and method for organic electric exciting luminous element ink-jet preparation
  • Color ink bubble removing device and method for organic electric exciting luminous element ink-jet preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Please refer to figure 2 , is a schematic diagram of a preferred example of the device for removing bubbles in the inkjet process of the organic electroluminescent element of the present invention. The device comprises an ink supply tank 210, a buffer tank 220, an inkjet head 230, a delivery pipeline 240 connecting the ink supply tank 210 and the buffer tank 220, and a delivery pipeline 250 connecting the buffer tank 220 and the inkjet head 230 ; Wherein, the buffer tank 220 is located between the ink supply tank 210 and the inkjet head 230 ; and the horizontal position of the delivery pipeline 240 is higher than the delivery pipeline 250 . There is an adjustable opening 221 above the buffer tank 220 for gas discharge, and an air extraction unit 270 is added to the switch 221 . The delivery line 240 has a switch 241 near the buffer tank 210 , and the delivery line 250 also has a switch 251 near the buffer tank 210 for continuous or pause control of ink delivery.

[00...

Embodiment 2

[0041] Please refer to FIG. 3 , which is a schematic diagram of another preferred example of the device for removing air bubbles in the inkjet process of the organic electroluminescence device of the present invention. The device includes an ink supply tank 310, a three-way buffer tank 320, an inkjet head 330, and a delivery pipeline 340 connecting the ink supply tank 310, the buffer tank 320 and the inkjet head 330; wherein the buffer tank 320 Located between the ink supply tank 310 and the inkjet head 330 . There is an adjustable opening 321 above the buffer tank 320 for gas discharge; and the switch 321 is additionally connected with a pumping unit 360 or connected with a nitrogen environment (not shown in the figure).

[0042]During the inkjet process, the ink is discharged from the ink supply tank 310 and delivered to the buffer tank 320 through the delivery pipeline 340; at this time, the switch 221 is turned on at the same time, and the bubbles can be discharged from th...

Embodiment 3

[0044] Please refer to FIG. 4 , which is a schematic diagram of another preferred example of the device for removing air bubbles in the inkjet process of the organic electroluminescence device of the present invention. This embodiment is roughly the same as Embodiment 1, the difference is that several partition plates 225 are arranged inside the buffer tank 220 to divide the buffer tank 220 into several open chambers to increase the chance of ink flow and help remove air bubbles.

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PUM

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Abstract

The color ink bubble removing device includes one ink supplying tank to provide ink; one buffering tank with adjustable air exhaust port to hold ink the ink supplying tank provides and remove bubble from the ink via the adjustable air exhaust port; one air pumping unit connected to the adjustable air exhaust port to pump out bubble from the ink inside the buffering tank; one ink jet head to jet ink, and ink conveying pipeline to connect the ink supplying tank and the buffering tank and connect the buffering tank and the ink jet head. The buffering tank is located between the ink supplying tank and the ink jet head.

Description

technical field [0001] The invention relates to a color ink bubble removal device and method, in particular to a color ink bubble removal device and method suitable for the inkjet process of an organic electroluminescence element. Background technique [0002] Due to the rapid development of computer-related products, flat panel displays have become the mainstream of current screen displays. Organic electroluminescent diodes (OLEDs) are a new trend in the development of flat-panel displays due to their simple structure, convenient manufacturing process, low driving potential, and no viewing angle limitation, and are conducive to the application of full-color displays. OLED is a single-layer structure element with conjugated polymer as the organic thin film material. Its main process technology is to apply the conjugated polymer material to the substrate by means of spin coating or ink jet printing. Among them, inkjet printing is the most suitable for large-scale and mass pr...

Claims

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Application Information

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IPC IPC(8): B41J2/165
Inventor 韩于凯萧夏彩洪政勋
Owner RITDISPLAY