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Ink jet printing head and ink jet printing equipment

An inkjet print head and ink feeding technology, applied in printing, electrical components, electrical solid devices, etc., can solve problems such as inkjet interference and reduce printing quality, and achieve the effect of ensuring printing quality and eliminating inkjet interference.

Active Publication Date: 2019-07-05
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an inkjet printing head and an inkjet printing device to solve the problem of ink jetting interference and lower printing quality in the inkjet printing head in the prior art

Method used

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  • Ink jet printing head and ink jet printing equipment
  • Ink jet printing head and ink jet printing equipment
  • Ink jet printing head and ink jet printing equipment

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] In the prior art, inkjet printheads such as figure 1 As shown, it includes a common ink tank 110, a plurality of ink feed grooves 120 and a plurality of nozzles 130, one end of the plurality of ink feed grooves 120 communicates with the plurality of nozzles 130 one by one, and the other end of the plurality of ink feed grooves 120 One end is all communicated with the common ink groove 110; the notch of the ink inlet groove 120 is covered with a ...

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PUM

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Abstract

The invention provides an ink jet printing head and ink jet printing equipment. The ink jet printing head comprises a public ink fountain, a plurality of ink inlet grooves communicated with the publicink fountain, and a plurality of nozzles correspondingly communicated with the plurality of ink inlet grooves one by one; the groove mouths of the plurality of ink inlet grooves are covered by piezoelectric material layers; the piezoelectric material layers generate deformation to change the capacities of the ink inlet grooves; current limiting assemblies which are arranged in the ink inlet grooves and located at the communication places of the ink inlet grooves and the public ink fountain are used for blocking the communication between second ink inlet grooves and the public ink fountain when piezoelectric material areas corresponding to the first ink inlet grooves deform; and the second ink inlet grooves are ink inlet grooves adjacent to the first ink inlet grooves. The ink jet printinghead and the inkjet printing equipment can ensure the printing quality of the ink jet printing head.

Description

technical field [0001] The invention relates to the technical field of inkjet printing, in particular to an inkjet printing head and inkjet printing equipment. Background technique [0002] In the current field of display manufacturing, in order to further improve the utilization rate of materials and reduce the complexity of the production process, inkjet printing technology is applied to the preparation process of flat panel displays, for example: inkjet printing technology can be applied to flexible OLED thin film packaging process , which uniformly deposits organic materials on OLED light-emitting devices by inkjet. [0003] The basic working principle of inkjet printing: first generate small ink droplets, and then use the nozzle to guide the tiny ink droplets to the set position. The smaller the ink droplet, the more accurate the drop position, and the higher the printing resolution. . Because inkjet printing has high requirements on the accuracy of inkjet volume and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/00H01L51/52B41J2/14H10K99/00
CPCB41J2/14201H10K71/00H10K50/844
Inventor 胡春静侯文军
Owner BOE TECH GRP CO LTD