Energy efficient LED driving system for large-scale Video display panel

X. Lv; Ka Hong Loo; Y. M. Lai; Chi Kong Tse

doi:10.1109/IECON.2013.6700131

Energy efficient LED driving system for large-scale Video display panel

X. Lv, Ka Hong Loo, Y. M. Lai, Chi Kong Tse

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

Abstract

This paper shows how an energy efficient LED driving system can be implemented on a full-color large-scale Video display panel through a low-cost modification of conventional hardware configuration. The proposed system employs multiple LED driver modules connected in parallel that are combined to deliver multi-level PWM current to individual LED pixels. The implementation of the proposed driver is illustrated with a three-level driving scheme. The criteria for selecting current levels in order to maximize the luminous efficacy gain is derived mathematically. The algorithm for video signal conversion that requires for deriving sub-video signals from the original HDMI or DVI signal to activate multiple LED driver modules is also discussed. Experimental results show an average gain of 15% on luminous efficacy over the ON-OFF PWM driving scheme by the proposed method.

Original language	English
Title of host publication	Proceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
Pages	6063-6068
Number of pages	6
DOIs	https://doi.org/10.1109/IECON.2013.6700131
Publication status	Published - 1 Dec 2013
Event	39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria Duration: 10 Nov 2013 → 14 Nov 2013

Conference

Conference	39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013
Country/Territory	Austria
City	Vienna
Period	10/11/13 → 14/11/13

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

More information

10.1109/IECON.2013.6700131

Cite this

@inproceedings{f81f287b3dcf4537830478a6cad41be9,

title = "Energy efficient LED driving system for large-scale Video display panel",

abstract = "This paper shows how an energy efficient LED driving system can be implemented on a full-color large-scale Video display panel through a low-cost modification of conventional hardware configuration. The proposed system employs multiple LED driver modules connected in parallel that are combined to deliver multi-level PWM current to individual LED pixels. The implementation of the proposed driver is illustrated with a three-level driving scheme. The criteria for selecting current levels in order to maximize the luminous efficacy gain is derived mathematically. The algorithm for video signal conversion that requires for deriving sub-video signals from the original HDMI or DVI signal to activate multiple LED driver modules is also discussed. Experimental results show an average gain of 15% on luminous efficacy over the ON-OFF PWM driving scheme by the proposed method.",

author = "X. Lv and Loo, {Ka Hong} and Lai, {Y. M.} and Tse, {Chi Kong}",

year = "2013",

month = dec,

day = "1",

doi = "10.1109/IECON.2013.6700131",

language = "English",

isbn = "9781479902248",

pages = "6063--6068",

booktitle = "Proceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society",

note = "39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 ; Conference date: 10-11-2013 Through 14-11-2013",

}

Lv, X, Loo, KH, Lai, YM & Tse, CK 2013, Energy efficient LED driving system for large-scale Video display panel. in Proceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society., 6700131, pp. 6063-6068, 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013, Vienna, Austria, 10/11/13. https://doi.org/10.1109/IECON.2013.6700131

Energy efficient LED driving system for large-scale Video display panel. / Lv, X.; Loo, Ka Hong; Lai, Y. M. et al.
Proceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society. 2013. p. 6063-6068 6700131.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Energy efficient LED driving system for large-scale Video display panel

AU - Lv, X.

AU - Loo, Ka Hong

AU - Lai, Y. M.

AU - Tse, Chi Kong

PY - 2013/12/1

Y1 - 2013/12/1

N2 - This paper shows how an energy efficient LED driving system can be implemented on a full-color large-scale Video display panel through a low-cost modification of conventional hardware configuration. The proposed system employs multiple LED driver modules connected in parallel that are combined to deliver multi-level PWM current to individual LED pixels. The implementation of the proposed driver is illustrated with a three-level driving scheme. The criteria for selecting current levels in order to maximize the luminous efficacy gain is derived mathematically. The algorithm for video signal conversion that requires for deriving sub-video signals from the original HDMI or DVI signal to activate multiple LED driver modules is also discussed. Experimental results show an average gain of 15% on luminous efficacy over the ON-OFF PWM driving scheme by the proposed method.

AB - This paper shows how an energy efficient LED driving system can be implemented on a full-color large-scale Video display panel through a low-cost modification of conventional hardware configuration. The proposed system employs multiple LED driver modules connected in parallel that are combined to deliver multi-level PWM current to individual LED pixels. The implementation of the proposed driver is illustrated with a three-level driving scheme. The criteria for selecting current levels in order to maximize the luminous efficacy gain is derived mathematically. The algorithm for video signal conversion that requires for deriving sub-video signals from the original HDMI or DVI signal to activate multiple LED driver modules is also discussed. Experimental results show an average gain of 15% on luminous efficacy over the ON-OFF PWM driving scheme by the proposed method.

UR - http://www.scopus.com/inward/record.url?scp=84893624737&partnerID=8YFLogxK

U2 - 10.1109/IECON.2013.6700131

DO - 10.1109/IECON.2013.6700131

M3 - Conference article published in proceeding or book

SN - 9781479902248

SP - 6063

EP - 6068

BT - Proceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

T2 - 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013

Y2 - 10 November 2013 through 14 November 2013

ER -

Energy efficient LED driving system for large-scale Video display panel

Abstract

Conference

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this