CMOS-controlled color-tunable smart display

Suailong Zhang; Z. Gong; Jonathan McKendry; Scott Watson; Andrew Cogman; Enyuan Xie; Pengfei Tian; Erdan Gu; Zhizhong Chen; Guojie Zhang; A. Kelly; Robert Henderson; M. D. Dawson

doi:10.1109/JPHOT.2012.2212181

CMOS-controlled color-tunable smart display

Suailong Zhang, Z. Gong, Jonathan McKendry, Scott Watson, Andrew Cogman, Enyuan Xie, Pengfei Tian, Erdan Gu, Zhizhong Chen, Guojie Zhang, A. Kelly, Robert Henderson, M. D. Dawson

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We demonstrate a color-tunable smart display system based on a micropixelated light-emitting diode $(muhbox{LED})$ array made from one InGaN epitaxial structure with high (0.4) indium mole fraction. When integrated with custom complementary metal–oxide–semiconductor (CMOS) electronics and a CMOS driving board with a field-programmable gate array (FPGA) configuration, this $muhbox{LED}$ device is computer controllable via a simple USB interface and is capable of delivering programmable dynamic images with emission colors changeable from red to green by tailoring the current densities applied to the $muhbox{LED}$ pixels. The color tunability of this CMOS-controlled device is attributed to the competition between the screening of piezo-electric field and the band filling effect. Comparable brightness of the $muhbox{LED}$ pixels emitting at different colors was achieved by adjusting the duty cycle. Further measurement suggests that this microdisplay system can also be used for high-speed visible light communications.

Original language	English
Pages (from-to)	1639-1646
Number of pages	8
Journal	Ieee photonics journal
Volume	4
Issue number	5
DOIs	https://doi.org/10.1109/JPHOT.2012.2212181
Publication status	Published - Oct 2012

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10.1109/JPHOT.2012.2212181

\\orthus.ucs.ed.ac.uk\ishome\v1mmlaka\Win7\Desktop\06262439
©2012 IEEE
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HYPIX: Hybrid Organic Semiconductor /gallium nitride/CMOS smart pixel arrays
Henderson, R., Renshaw, D., Underwood, I. & Walton, A.
EPSRC
1/10/08 → 30/09/12
Project: Research

Cite this

@article{6b7d4c38727644e9a0bfbb5c4f63ba32,

title = "CMOS-controlled color-tunable smart display",

abstract = "We demonstrate a color-tunable smart display system based on a micropixelated light-emitting diode $(muhbox{LED})$ array made from one InGaN epitaxial structure with high (0.4) indium mole fraction. When integrated with custom complementary metal–oxide–semiconductor (CMOS) electronics and a CMOS driving board with a field-programmable gate array (FPGA) configuration, this $muhbox{LED}$ device is computer controllable via a simple USB interface and is capable of delivering programmable dynamic images with emission colors changeable from red to green by tailoring the current densities applied to the $muhbox{LED}$ pixels. The color tunability of this CMOS-controlled device is attributed to the competition between the screening of piezo-electric field and the band filling effect. Comparable brightness of the $muhbox{LED}$ pixels emitting at different colors was achieved by adjusting the duty cycle. Further measurement suggests that this microdisplay system can also be used for high-speed visible light communications.",

author = "Suailong Zhang and Z. Gong and Jonathan McKendry and Scott Watson and Andrew Cogman and Enyuan Xie and Pengfei Tian and Erdan Gu and Zhizhong Chen and Guojie Zhang and A. Kelly and Robert Henderson and Dawson, {M. D.}",

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month = oct,

doi = "10.1109/JPHOT.2012.2212181",

language = "English",

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pages = "1639--1646",

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T1 - CMOS-controlled color-tunable smart display

AU - Zhang, Suailong

AU - Gong, Z.

AU - McKendry, Jonathan

AU - Watson, Scott

AU - Cogman, Andrew

AU - Xie, Enyuan

AU - Tian, Pengfei

AU - Gu, Erdan

AU - Chen, Zhizhong

AU - Zhang, Guojie

AU - Kelly, A.

AU - Henderson, Robert

AU - Dawson, M. D.

PY - 2012/10

Y1 - 2012/10

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AB - We demonstrate a color-tunable smart display system based on a micropixelated light-emitting diode $(muhbox{LED})$ array made from one InGaN epitaxial structure with high (0.4) indium mole fraction. When integrated with custom complementary metal–oxide–semiconductor (CMOS) electronics and a CMOS driving board with a field-programmable gate array (FPGA) configuration, this $muhbox{LED}$ device is computer controllable via a simple USB interface and is capable of delivering programmable dynamic images with emission colors changeable from red to green by tailoring the current densities applied to the $muhbox{LED}$ pixels. The color tunability of this CMOS-controlled device is attributed to the competition between the screening of piezo-electric field and the band filling effect. Comparable brightness of the $muhbox{LED}$ pixels emitting at different colors was achieved by adjusting the duty cycle. Further measurement suggests that this microdisplay system can also be used for high-speed visible light communications.

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DO - 10.1109/JPHOT.2012.2212181

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SP - 1639

EP - 1646

JO - Ieee photonics journal

JF - Ieee photonics journal

IS - 5

ER -

CMOS-controlled color-tunable smart display

Abstract / Description of output

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Projects

HYPIX: Hybrid Organic Semiconductor /gallium nitride/CMOS smart pixel arrays

Cite this