Integrated 2T1C pixel circuit with a-Si TFT and NMOS for active matrix mini-LED displays

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-07 DOI:10.1088/1361-6641/ad238c

Chenming Zhong, Guangyao Li, Xi Zheng, Lihong Zhu, Jianbang Zhuang, Yijun Lu, Zhong Chen, Weijie Guo

引用次数: 0

Abstract

The 2T1C pixel driver circuit for mini-LED direct display has been proposed, which separates the switching transistor and the driver transistor from the same display substrate, replaces the driver transistor with n-metal oxide semiconductor (NMOS), and combines printed circuit board substrate and thin-film transistor (TFT) substrate to improve the driving capability of the circuit. The NMOS was soldered with mini-LEDs simultaneously onto a substrate which connects to the a-Si TFT array. Two driving modes for a 32-level gray-scale display panel were investigated to compare the voltage-current and optical characteristics. The results demonstrated that the drain-driving mode is better suited for high brightness and high-power display application scenarios as it supports higher-driven currents, but the source-driving mode is more appropriate for precision gray-scale applications due to the higher current linearity of the mode.

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集成 2T1C 像素电路，采用 a-Si TFT 和 NMOS，用于有源矩阵微型 LED 显示器

提出了用于微型 LED 直接显示的 2T1C 像素驱动电路，该电路将开关晶体管和驱动晶体管从同一个显示基板上分离出来，用正金属氧化物半导体（NMOS）取代驱动晶体管，并将印刷电路板基板和薄膜晶体管（TFT）基板结合起来，以提高电路的驱动能力。NMOS 与微型 LED 同时焊接在连接到非晶硅 TFT 阵列的基板上。研究了 32 级灰度显示面板的两种驱动模式，以比较电压-电流和光学特性。结果表明，漏极驱动模式更适合高亮度和高功率显示应用场景，因为它支持更高的驱动电流，但源极驱动模式更适合精密灰度应用，因为该模式的电流线性度更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.