Gate Driver on Array With Multiple Outputs and Variable Pulse Widths for Low-Temperature Polysilicon and Oxide (LTPO) TFTs Driven AMOLED Displays

被引：15

作者：

An, Junjun ^{[1
]}

Liao, Congwei ^{[1
]}

Zhu, Yuxuan ^{[1
]}

Zheng, Xin ^{[1
]}

Dai, Chao ^{[2
]}

Zhang, Xin ^{[2
]}

Zhang, Shengdong ^{[1
]}

机构：

[1] Peking Univ Shenzhen Grad Sch, Sch Elect & Comp Engn, Nanshan 518055, Peoples R China

[2] TCL China Star Optoelect Technol Co Ltd, Res & Dev Ctr, Wuhan 430078, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2023年 / 70卷 / 03期

关键词：

Active matrix organic light-emitting diode (AMOLED); gate driver; low-temperature polysilicon and oxide (LTPO); thin-film transistor (TFT); PIXEL; POWER; DROP;

D O I：

10.1109/TCSII.2022.3221069

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A gate driver on array (GOA) circuit was proposed for low-temperature polysilicon and oxide (LTPO) thin-film transistor (TFT) hybrid-driven active matrix organic light-emitting diode (AMOLED) displays with both high and low refresh rate operation. The GOA generates multiple types of scanning signals by reusing shift registers so that three signal pulses are output parallelly within a single stage to scan p-and n-type switching TFTs and emission TFT of the AMOLED pixels, respectively, leading to a 30% reduction in the layout area. Furthermore, the pulse-width of the scan signals for the emission TFT can be programed simply by changing the number of input pulses to vary refresh rates. The fabricated GOAs work well even with the pulse width reduced to 2.9 mu s.

引用

页码：934 / 938

页数：5

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