Development of the ink-jet printing technology for 55-inch 8K AMQLED display,Journal of the Society for Information Display

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Development of the ink-jet printing technology for 55-inch 8K AMQLED display
Journal of the Society for Information Display ( IF 1.7 ) Pub Date : 2023-04-24 , DOI: 10.1002/jsid.1217
Yuanming Zhang ₁ , Xu Yuan ₁ , Zhuo Chen ₁ , Dong Li ₁ , Jingwen Feng ₁ , Yang Gao ₁ , Yanzhao Li ₁ , Xinguo Li ₁ , Xiaoguang Xu ₁

Affiliation

In this paper, we obtained the optimal structure of QLED top-emission spin-coating device. Meanwhile, we also have successfully developed quantum dots and ZnO ink materials with high stability. With the top-emission device structure and stable ink materials, we optimize the morphology of every film by controlling the drying process after ink-jet printing. The emission area of united devices prepared by using the optimized ink-jet printing process is equal to the designed area of pixels, with clear boundaries, uniform electroluminescent morphologies within a single sub-pixel, and no significant difference in luminescence between pixels. Finally, we assembled and fabricated a 55-in. 8K AMQLED display with a color gamut of 116% NTSC.

中文翻译：

55英寸8K AMQLED显示屏喷墨打印技术开发

在本文中，我们获得了QLED顶发射旋涂器件的最佳结构。同时，我们还成功开发了高稳定性的量子点和ZnO墨水材料。凭借顶部发射装置结构和稳定的墨水材料，我们通过控制喷墨打印后的干燥过程来优化每层薄膜的形态。采用优化的喷墨印刷工艺制备的联合器件的发光面积与像素的设计面积相等，边界清晰，单个子像素内电致发光形貌均匀，像素间发光无明显差异。最后，我们组装并制造了 55 英寸。8K AMQLED 显示屏，色域为 116% NTSC。

更新日期：2023-04-24

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