有机发光二极管显示屏的喷墨打印研究与展望

刘欣; 叶芸; 唐谦; 郭太良

doi:10.3788/CO.20201302.0217

有机发光二极管显示屏的喷墨打印研究与展望

doi: 10.3788/CO.20201302.0217

cstr: 32171.14.CO.20201302.0217

福州大学物理与信息工程学院, 福建福州 350002

基金项目:

国家重点研究发展计划 2017YFB0404604

福建省自然科学基金 2018J01802

详细信息

作者简介:
刘欣(1994-), 女, 山东菏泽人, 硕士研究生, 2016年于西北师范大学获得学士学位, 主要从事喷墨打印OLED器件性能的研究。E-mail:876123273@qq.com

叶芸(1977—)，女, 福建福州人，博士，研究员，2007年于电子科技大学获得博士学位，主要从事物理电子学方面的研究。E-mail: yeyun07@fzu.edu.cn

中图分类号: TN141;TN873+.3
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出版历程
- 收稿日期: 2019-04-24
- 修回日期: 2019-06-10
- 刊出日期: 2020-04-01

Progress of OLEDs prepared by inkjet printing

College of Physics and Information Engineering, Fuzhou University, Fuzhou 350002, China

Funds:

National Key Research and Development Plan 2017YFB0404604

Natural Science Foundation of Fujian Province 2018J01802

More Information

Corresponding author: YE Yun,E-mail:yeyun07@fzu.edu.cn

摘要

摘要: 近年来，有机发光二极管（OLED）被广泛应用于智能手机等中小尺寸显示屏，并逐步进入电视等大尺寸显示领域和照明市场。随着OLED平板显示新时代的到来，对显示屏的彩色化与图案化研究提出了更高要求。与传统真空蒸镀技术相比，喷墨打印技术更容易实现大面积器件的彩色化和复合功能材料的图案化，且工艺简单，成本低廉，并可进行柔性器件加工。本文综述了采用喷墨打印技术制备OLED显示屏的研究现状，并系统介绍了喷墨打印设备的发展历程，通过优化bank结构提高显示屏的分辨率，优化墨水配方及组成配比抑制喷墨液滴的"咖啡环"效应，从而提高显示器发光均匀性，最后对国内外该技术产业进行了概述与展望。
- 喷墨打印 /
- OLED /
- 像素结构 /
- 发光材料
Abstract: In recent years, OLED(Organic Light Emitting Diode) devices have been widely used in small-and medium-sized displays, and have gradually been popularized in large area display applications, such as in TVs and lighting. With the continuous development of organic light-emitting technology, higher requirements drive research on the color and pattern of OLED devices. Compared with the traditional vacuum evaporation process, inkjet printing technology easily colors large-area devices and patterns composite functional materials. It is also simple to implement, low in cost and has a more flexible process. In this paper, the current progress of inkjet-printed OLED devices is reviewed. Furthermore, this paper systematically introduces the development of inkjet printing equipment, by optimizing bank structures to improve the resolution of their display screens, by optimizing the ink formulation and composition ratio to suppress the coffee ring effect of inkjet droplets, and improves the uniformity of display luminescence. Finally, this paper summarizes and provides prospects for the future development of this technology at home and abroad.
- inkjet printing /
- OLED /
- pixel structure /
- luminescent material

HTML全文

图 1 喷墨打印技术的分类

Figure 1. Classification of inkjet printing technology

下载: 全尺寸图片幻灯片

图 2 按需喷墨打印工作原理图

Figure 2. Schematic of inkjet print-on-demand

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图 3 YIELDJet喷墨打印系统

Figure 3. YIELDJet inkjet printer

下载: 全尺寸图片幻灯片

图 4 Jetlab Ⅱ喷墨打印设备(来源：microfab网站)

Figure 4. Jetlab Ⅱ inkjet printer(Source:microfab website)

下载: 全尺寸图片幻灯片

图 5 SUREjet-T7680V喷墨打印喷头(来源：sina网站)

Figure 5. SUREjet-T7680V inkjet printer nozzle(Source:sina website)

下载: 全尺寸图片幻灯片

图 6 OLED显示屏的彩色像素结构

Figure 6. Pixel structure of color OLED

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图 7 OLED像素排列方式(来源：PC online网站)

Figure 7. Pixel alignments of OLED(Source: PC online website)

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图 8 单个像素侧面结构

Figure 8. Cross-section of a single pixel

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图 9 OLED像素结构

Figure 9. Pixel structures of OLED

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图 10 JOLED 21.6英寸喷墨打印显示屏

Figure 10. JOLED 21.6-inch inkjet-printing screen

下载: 全尺寸图片幻灯片

图 11 BOE 55英寸喷墨打印显示屏(来源：IT homel网站)

Figure 11. BOE 55-inch inkjet-printing display screen(Soure:IT homel website)

下载: 全尺寸图片幻灯片

图 12 CES喷墨打印显示屏(来源：zol网站)

Figure 12. Inkjet-printing display screen of CES(Source:zol website)

下载: 全尺寸图片幻灯片

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