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Ink-jet printing device

An inkjet printing device and inkjet printing technology, which are applied in the directions of inking device, power transmission device, printing, etc., can solve the problems of uneven thickness of inkjet printing film layer and low inkjet printing efficiency, and improve inkjet printing. The uniformity of film thickness and the effect of improving the efficiency of inkjet printing

Active Publication Date: 2019-11-15
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, an embodiment of the present invention provides an inkjet printing device to solve the problems of low inkjet printing efficiency and uneven thickness of the inkjet printing film layer in the prior art

Method used

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Embodiment Construction

[0021] As mentioned in the background, there are technical problems of low inkjet printing efficiency and non-uniform inkjet printing film thickness in the prior art. The inventor found that the reason for this problem is that due to the limitation of the location and quantity of the nozzles, the ink droplets need to diffuse from the middle area of ​​the substrate to be ink-jetted to the edge area of ​​the substrate to be ink-jetted. Ink droplet diffusion takes time, which affects printing efficiency; the ink droplet diffusion path is uncontrollable, and after film formation, the film thickness at the edge of the substrate to be inkjet is smaller than the film thickness at the starting position of diffusion, and the film thickness is not uniform. In an inkjet process, the larger the inkjet volume of a nozzle, the longer the ink droplet spreads, and the lower the printing efficiency; the more uncontrollable the spread, the more uneven the thickness of the film layer. In additio...

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Abstract

The invention provides an ink-jet printing device which is characterized by comprising a plurality of shower nozzles and a plurality of driving mechanisms; the shower nozzles are configured to performink-jet printing on a substrate to be ink-jetted; the driving mechanisms are separately corresponding to the spray nozzles; the driving mechanisms are configured to drive the spray nozzles to move along a preset trajectory; and the farther the distance between the spray nozzles and the center of the substrate to be ink-jetted is, and the larger the angle of the spray nozzles inclining to the center of the substrate to be ink-jetted in the vertical direction is. The spray nozzles are arranged, so that the ink-jet quantity is smaller, the diffusion time is shortened, the diffusion area is smaller, and the ink-jet printing efficiency and the thickness uniformity of a film layer are improved. The driving mechanisms drive the spray nozzles to move along the preset trajectory, so that the spraynozzles move and jet ink synchronously, and the thickness uniformity of the ink-jet printing film layer is improved. The farther the distance between the spray nozzles and the center of the substrateto be ink-jetted is, and the larger the angle of the spray nozzles inclining to the center of the substrate to be ink-jetted in the vertical direction is, and therefore, through the arrangement of the spray nozzles, the thickness uniformity of the ink-jet printing film layer is further improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an inkjet printing device. Background technique [0002] Inkjet printing technology is a common way of film formation. Due to the advantages of accurate positioning, no need for heating, and less material waste, inkjet printing technology is widely used in OLED (Organic Light-emitting Diode, organic light-emitting diode) and TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film transistor liquid crystal display) display) and other production. In the existing inkjet printing technology, due to the limitation of the location and number of nozzles, ink droplets need to diffuse from the middle area of ​​the substrate to be inkjet to the edge area of ​​the substrate with inkjet. It takes time for ink droplets to spread, which affects printing efficiency. In addition, the diffusion path of the ink droplet is uncontrollable. After the film is formed, the thickness of the f...

Claims

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Application Information

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IPC IPC(8): B41J2/01
CPCB41J2/01B41J2/155B41J2202/20B41J25/316H10K71/135
Inventor 邹敏李文星
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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