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Ink jet printer and printing method thereof

A technology of inkjet printers and print heads, applied in printing devices, copying/marking methods, printing, etc., capable of solving problems such as uneven screen brightness and large printing volume deviations

Active Publication Date: 2018-09-07
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention provides an inkjet printer and a printing method thereof to solve the problem of uneven brightness of the screen caused by large deviations in the printing volume of organic electroluminescent solutions between different sub-pixels during the printing process of organic electroluminescent devices. question

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  • Ink jet printer and printing method thereof
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  • Ink jet printer and printing method thereof

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Embodiment Construction

[0041] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0042] In the inkjet printer and the printing method of the organic electroluminescent device of the present invention, during the printing process of the organic electroluminescent device, the printing volume deviation of the organic electroluminescent solution between different sub-pixels is relatively large, which in turn leads to uneven brightness of the screen In ...

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Abstract

The invention provides an ink jet printer and a printing method thereof; the ink jet printer comprises a printing controller, a main printing unit, a volume detector and a compensation printing unit;the volume detector can detect a to-be-compensated printing solution volume and a printing position right away when the main printing unit finishes the primary printing, thus enabling the compensationprinting unit to make compensation printing for the to-be-compensated printing solution. The method can make compensation printing for the to-be-compensated printing solution, thus ensuring the homogeneity of an organic electroluminescent device film, and improving the screen displaying efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an inkjet printer and a printing method thereof. Background technique [0002] Organic Light-Emitting Diode (OLED) has become the most promising new display device in recent years due to its advantages of self-luminescence, all-solid-state, and high contrast. [0003] The film formation of organic electroluminescent devices generally includes evaporation process and solution process. The evaporation process has been widely used in the manufacture of small-sized display panels. Solution processing includes inkjet printing, nozzle coating, spin coating, screen printing, etc., where inkjet printing is considered to be an important method for manufacturing large-sized display panels. [0004] The main steps of inkjet printing to prepare OLED include: [0005] (1) Drop a droplet of precise volume on the specified position and the pixel opening of the substrate; [0006] (2) dryin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/56H01L51/00B41J2/01B41J29/393B41M5/00H10K99/00
CPCB41J2/01B41J29/393B41M5/0047H10K71/135
Inventor 郝鹏吴元均
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD