High Precision Control System for Micro-LED Displays

被引：2

作者：

Chen, Yufeng ^{[1
,2
,3
]}

Zheng, Xifeng ^{[1
,3
]}

Cao, Hui ^{[3
]}

Wang, Yang ^{[1
,3
]}

Cheng, Hongbin ^{[1
,3
]}

Chen, Junchang ^{[1
,2
]}

Huang, Shuo ^{[1
,2
]}

Li, Jingxu ^{[1
,2
]}

Huang, Deju ^{[1
,2
]}

Chen, Yu ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Changchun Cedar Elect Technol Co Ltd, Changchun 130103, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 19期

关键词：

Micro-LED; FPGA control; memory management; brightness correction; refresh; DRIVEN;

D O I：

10.3390/app131910601

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper proposes a Field Programmable Gate Array (FPGA)-based control system to implement micro-light-emitting diode (micro-LED) real-time display. The control system includes the interface control, video processing, memory management, image data transmission, control signal generation and correction. Then, we implement the micro-LED real-time display via memory management. We propose the brightness correction to achieve high grey-scale and high uniformity display. The LEDs are mounted on the glass substrate prepared using low-temperature polysilicon (LTPS) technology, and then we find the 24 x 46 pixels micro-LED panel. And the control system has been successfully applied to the panel of glass-based micro-LED displays. A new grey control method is proposed in this work, which can effectively improve the refresh rate of the micro-LED displays. The high grey-scale refresh rate is 2100 Hz, and the low grey-scale refresh rate is 300 Hz. The uniformity of the panel is increased to 85% after brightness correction.

引用

页数：13

共 17 条

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