Main Menu Home

Forum

Members

Member Map

HvWiki

Chat Room

Submit News

Site Rules

Archives

Jan 2002 - April 2004

April 2004 - Feb 2006

Visits

Welcome



Password:











Remember me



[ Sign up ]

[ Forgot password? ] Username or Email:Password: Online Guests: 7

Members: 0

Newest Member: omjtest

Most ever online: 76

Guests: 76, Members: 0 on Monday 24 December 2018 - 05:02:03 Members Birthdays: All today's birthdays', congrats!

Maz (30)

Freelancer1331 (6)





Next birthdays

02/28 Frog_Qmak (28)

03/01 mostlymacros (40)

03/02 Staff (25)

Contact Support 4hv.org! Donate:

4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.

Special Thanks To: Aaron Holmes

Aaron Wheeler

Adam Horden

Alan Scrimgeour

Andre

Andrew Haynes

Anonymous000

asabase

Austin Weil

barney

Barry

Bert Hickman

Bill Kukowski

Blitzorn

Brandon Paradelas

Bruce Bowling

BubeeMike

Byong Park

Cesiumsponge

Chris F.

Chris Hooper

Corey Worthington

Derek Woodroffe

Dalus

Dan Strother

Daniel Davis

Daniel Uhrenholt

datasheetarchive

Dave Billington

Dave Marshall

David F.

Dennis Rogers

drelectrix

Dr. John Gudenas

Dr. Spark

E.TexasTesla

eastvoltresearch

Eirik Taylor

Erik Dyakov

Erlend^SE

Finn Hammer

Firebug24k

GalliumMan

Gary Peterson

George Slade

GhostNull

Gordon Mcknight

Graham Armitage

Grant

GreySoul

Henry H

IamSmooth

In memory of Leo Powning

Jacob Cash

James Howells

James Pawson

Jeff Greenfield

Jeff Thomas

Jesse Frost

Jim Mitchell

jlr134

Joe Mastroianni

John Forcina

John Oberg

John Willcutt

Jon Newcomb

klugesmith

Leslie Wright

Lutz Hoffman

Mads Barnkob

Martin King

Mats Karlsson

Matt Gibson

Matthew Guidry

mbd

Michael D'Angelo

Mikkel

mileswaldron

mister_rf

Neil Foster

Nick de Smith

Nick Soroka

nicklenorp

Nik

Norman Stanley

Patrick Coleman

Paul Brodie

Paul Jordan

Paul Montgomery

Ped

Peter Krogen

Peter Terren

PhilGood

Richard Feldman

Robert Bush

Royce Bailey

Scott Fusare

Scott Newman

smiffy

Stella

Steven Busic

Steve Conner

Steve Jones

Steve Ward

Sulaiman

Thomas Coyle

Thomas A. Wallace

Thomas W

Timo

Torch

Ulf Jonsson

vasil

Vaxian

vladi mazzilli

wastehl

Weston

William Kim

William N.

William Stehl

Wesley Venis The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks. 4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear inhave donated recently.denotes those who have recently donated to keep the server carbon neutral.The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.

This web site requires that javascript be enabled. Click here for instructions.. Forums 4hv.org :: Forums :: Electromagnetic Radiation « Previous topic | Next topic »

Possible new physics?

LAN_402 LAN_403 Conundrum Sun Apr 03 2016, 06:28AM Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM

Location: Republic of Guernsey

Posts: 4019

(this is re. some scepticism that OLED screen burn is not repairable using any known mechanism)



It seems to work for the same reason that aiming an IR emitter at a red OLED makes it brighter but only if it is already worn.



I've checked this against my photodiode setup and there *is* a definite increase in brightness which is clearly visible to the naked eye.



I am pretty sure that this is due to the combination of weak electrical stimulation of the OLED molecules and infrared (only works with *some* 900nm diodes!) causing some of the non radiative recombination areas to convert back into the correct pi bonded light emitting configuration.



If anyone wants to check this try finding an old Galaxy S/S2/S3 with screen burn, you will often find that the red area under the bar brightens under IR emission and this if done for long enough results in some recovery of brightness as long as you don't overdo it and "cook" the small organic molecules.

Even the diode from a TV remote will work, it has to be CW though as pulsed seems to do nothing.

Perhaps the pulsed emission from the OLED itself is to blame here, its like resonance shattering a wine glass.



I've yet to try it on the blue but it looks very promising, Samsung haven't returned my emails for some reason.



Also relevant: I once tried this with an old totally useless MP4 wristwatch + 850nm 3J diodes and it did work but the screen was too badly damaged to show much recovery (solar radiation damage, that sheet is there to protect the screen)



Is this going to be another of those "I found it first but it was ignored" discoveries?



EDIT: Found a way to test this on "purple line" panels, of which there are many.

The current fix is to replace entire assembly which makes the phone scrap!

Same principle, essentially the organic transistors under OLED degrade so recovering them could be quite simple.

Also should work on E-ink (except cracked) readers, and anything that uses organic interconnects.



I did test it on blue, with my S3 Neo but recovery wasn't as strong.

Need to optimize process, watch this space!

-Andre Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Bjørn, Dave Billington, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to: General Chatting Sale and Trade General Science and Electronics Electromagnetic Radiation Electromagnetic Projectile Accelerators High Voltage Tesla Coils Chemistry Computer Science Projects Archive Discussion Suggestion Box Attachments HvWiki Discussion Powered by e107 Forum System