Study of Active Matrix Circuits Design for Micro-LED displays and Visible Light Communications

Li，Weizeng; Tong，Caiyu; Liu，Xinyi; Wang，Ruoning; Liu，Zhaojun

10.1002/SDTP.13725

2019

0097-966X

2168-0159

Digest of Technical Papers - SID International Symposium

50

S1

1005-1009

Because Micro-LED is the current-driven device, there are usually two types of the matrix driving circuit, passive matrix driving circuit, and active matrix driving circuit. Comparing these two driving circuits, the active driving circuit can achieve better brightness uniformity, higher contrast and lower contrast. Therefore, most of Micro-LEDs use active matrix driving circuit. In this paper, a study of active matrix circuit design for MicroLED displays and beyond display applications such as visible light communication will be reported. The pixel circuit integrates two parts of VLC together, the emitter and the receiver. When the LED is on, it can work as the emitter of VLC. When the LED is off, the photodetector can work as the receiver of the VLC. This can offer more varieties of the application, such as face-to-face data transmission, under-screen fingerprint identification and so on.

Micro-LED display Pixel circuit Visible light communication

First

English

EI

20222912373472

Integrated circuit manufacture ; Light ; Light emitting diodes ; Pixels ; Visible light communication

Pulse Circuits:713.4 ; Semiconductor Devices and Integrated Circuits:714.2 ; Optical Communication Systems:717.1 ; Light/Optics:741.1

2-s2.0-85094180303

Scopus

Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,China

Li，Weizeng,Tong，Caiyu,Liu，Xinyi,et al. Study of Active Matrix Circuits Design for Micro-LED displays and Visible Light Communications[C],2019:1005-1009.