Flicker free monitors

Quick Index

Please note: There has been a massive surge in the focus on โ€˜flicker-freeโ€™ monitors from many manufacturers since this list was first introduced on TFTCentral. As a result, the list is almost certainly not exhaustive. We will try to keep it updated for now, but at some point we will probably have to stop maintaining it. We will of course continue to mention whether upcoming models have a flicker-free backlight in our news pieces. We will also continue to test for this in our reviews.


Introduction

For many people, finding a monitor without Pulse Width Modulation (PWM) backlight dimming is now a key consideration. We thought it would be useful to compile a resource confirming all the flicker-free monitors we have tested, along with any others which we know of from other sources. Below is a table we will keep as up to date as possible, although note that it may not be exhaustive. If you know of any other screens which are confirmed as flicker free, please email or tweet us the details and links to the tests and we will get them added.

 

Keep in mind the varying testing methods used by different sites linked below and some possible margin for error. Those using oscilloscopes (TFTCentral and Prad.de) should be completely accurate, but those using camera based methods may be subject to some error for high frequency PWM.


Flicker Free Database

Models confirmed as being flicker free, without the use of Pulse Width Modulation for backlight dimming are shown below, along with some reported to be PWM but as yet, not 100% confirmed by reliable sources:

SizeModelConfir-
med?
Source / LinkDateNotes
17BenQ BL702ANoPart of new flicker free range, untested
19BenQ BL902TMNoUpdated model in flicker free range, untested.Flicker-free P/N: 9H.L5FLA.DBE
BenQ BL912NoPart of new flicker free range, untested
BenQ GL2023ANoUpdated model in flicker free range, untested.Flicker-free P/N: 9H.LA1LA.D8E / 9H.LA1LB.D8E
19.5Asus VX207NENo
21.5Acer H226HQLbmidYesExtrahardware10/5/13
AOC E2276VWM6NoAdvertised as flicker-free, untested
Asus VX228HNo
BenQ GW2255NoUpdated model in flicker free range, untested.Flicker-free P/N: 9H.LA2LA.DPE/9H.LA2LB.DPE/ 9H.LA2LA.DPU
BenQ GW2265MNoUpdated model in flicker free range, untested.Flicker-free P/N: 9H.LASLA.DPE
BenQ GW2265HMNoUpdated model in flicker free range, untested.Flicker-free P/N: 9H.LASLA.DBE/9H.LASLA.DBU
BenQ VW2235HNoPart of new flicker free range, untested
BenQ VX2250NoPart of new flicker free range, untested
BenQ VZ2250Noadvertised as flicker free, untested
Dell P2214HYesOverclockers.ru19/12/13
ViewSonic VG2233SmhNoadvertised as flicker free, untested
ViewSonic VX2263Smhl-WNoadvertised as flicker free, untested
22BenQ BL2211MNoPart of new flicker free range, untested.
BenQ BL2211TMNoPart of new flicker free range, untested.
ViewSonic VG2235mNoAdvertised as flicker free, untested
23Asus VX239HNoadvertised as flicker free, untested
BenQ GW2320NoPart of new flicker free range, untested.
BenQ VX2350NoPart of new flicker free range, untested
BenQ VX2350HMNoPart of new flicker free range, untested
BenQ VZ2350Noadvertised as flicker free, untested
BenQ VZ2350HMNoadvertised as flicker free, untested
Dell S2340TYesPrad.de18/2/13
Dell U2312HMNoReported to be PWM free from Rev A06. Not confirmed
LG 23MB35PY-BYesPrad.de24/11/14
LG 23MP65D-PYesOverclockers.ru7/4/14
ViewSonic TD2340YesPrad.de22/4/13
ViewSonic VX2363Smhl-WNoadvertised as flicker free, untested
23.5Samsung U24E590DNoAdvertised as flicker-free, untested
Samsung U24E850RNoAdvertised as flicker-free, untested
23.6AOC E2276VWM6NoAdvertised as flicker-free, untested
Samsung S24D390HLYesPCmonitors29/4/14
Samsung S24D590PLYesNCX30/4/14
Samsung S24E370DLNo
ViewSonic VX2475SmhlYesPCmonitors1/1/16
23.8Acer G247HUNoPart of flicker free range, untested
AOC i2473PwyYesPCmonitors29/5/14
AOC i2481FXHNo
BenQ BL2420ZNo
BenQ EZ2450LNoPart of new flicker free range, untested
BenQ SW2401PTNoPart of new flicker free range, untested
Dell P2414HYesTFTCentral8/10/13Full range from 100 –ย  0% brightness
Dell P2416DYesPCmonitors18/10/15Also confirmed by laptopmedia
Dell S2415HYesPCmonitors30/9/14
Dell U2414HYesTFTCentral23/1/14Full range from 100 –ย  0% brightness
Eizo FS2434NoAdvertised as flicker free at all brightness settings (not hybrid), untested
LG 24MP57VQ-PYesPrad.de19/10/15
LG 24MP76HM-SPartlyITC.ua26/3/14Part of Flicker-safe range. Partly tested but not thoroughly.
24Acer GN246HLBNoPart of flicker free range, untested
Acer XB240HNoPart of flicker free range, untested
Acer XB240HANoPart of flicker free range, untested
AOC g2460PgYesPCmonitors29/10/14
AOC i2460PxquYesPrad.de7/4/14
AOC i2473PwmNoAdvertised as flicker free, untested
BenQ BL2405HTNoPart of new flicker free range, untested
BenQ BL2410PTNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L9JLB.RBE
BenQ BL2411PTYesPrad.de29/7/13Part of new flicker free range. Also confirmed by Extrahardware
BenQ EW2440LYesPrasys.info2/2/14Part of new flicker free range.
BenQ GL2450NoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L7ALA.DPE/9H.L7ALA.DPU
BenQ GL2450HMNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L7CLA.DBE
BenQ GL2450HTNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L7CLB.DB9
BenQ GL2460NoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.LA6LB.DPE/9H.LA6LB.RPE
BenQ GL2460HMNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.LA7LB.DBE/9H.LA7LB.RBE
BenQ GW2450HMNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L8RLB.DBE/9H.L8RLA.DBE
BenQ GW2460HMNoUpdated model in flicker free range, untested.
Flicker-free P/N: 9H.L9GLB.DBE/9H.L7CLA.DBU
BenQ RL2455HMNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.LA9LB.DBE
BenQ VW2430HNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L9PLB.DWE
BenQ XL2411TNoUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L9SLB.DBE
BenQ XL2411ZNoPart of new flicker free range, untested
BenQ XL2420T (Rev 2.0)YesPrad.de19/5/14Updated model in flicker free range
Flicker-free P/N: 9H.L7PLB.DBE
BenQ XL2420TENoPart of new flicker free range, untested
BenQ XL2420GNoPart of new flicker free range, untested
BenQ XL2420ZYesPCmonitors17/3/14Part of new flicker free range, confirmed
BenQ XL2430TYesOverclockers.ru27/11/14Part of new flicker free range, confirmed
Dell U2415YesTFTCentralConfirmed flicker free
Eizo ColorEdge CS240NoAdvertised as flicker free, untested
HP Z24iYesPrad.de16/12/13
Iiyama X2483HSUYesOverclockers.ru13/1/14
LG 24GM77-BYesPrad.de10/10/14
LG 24MB65Y-BYesPrad.de10/11/14
Samsung S24C750PYesSvethardware29/10/13
Samsung S24C770TYesPrad.de30/12/13
ViewSonic VG2401mhNoAdvertised as flicker free, untested
ViewSonic VG2435SmNoAdvertised as flicker free, untested
ViewSonic VG2438SmNoAdvertised as flicker free, untested
25Acer G257HUNoPart of flicker free range, untested
Acer H257HUNoPart of flicker free range, untested
Asus MX259HNo
AOC Q2577PWQNo
Dell U2515HYesTFTCentral18/2/15
LG 25UM65Yes
Philips 258B6QJEBNo
27Acer G277HUNoPart of flicker free range, untested
Acer K272HULANoPart of flicker free range, untested
Acer K272HULBNoPart of flicker free range, untested
Acer S277HKNoPart of flicker free range, untested
Acer XB270HNoPart of flicker free range, untested
Acer XB270HANoPart of flicker free range, untested
Acer XB270HUYesTFTCentral24/2/15
Acer XB271HKYesTFTCentral26/2/16
Acer XB271HUNo
Acer XF270HUNo
Acer XG270HUYesTFTCentral
Achieva Shimian QH270YesPrad.de15/7/12No backlight control, brightness reduces contrast ratio. Also confirmed in our lab
Achieva Shimian 27″ IPS Zero-GYesTFTCentral14/8/13No backlight control, brightness reduces contrast ratio. Confirmed in our lab
AOC i2781FHNo
AOC q2770pquYesTFTCentral16/7/14Also confirmed by PCmonitors
Apple 27″ Cinema DisplayNoReported to be PWM free, unconfirmed
Apple 27″ ThunderboltNoReported to be PWM free, unconfirmed
Asus MG279QYesTFTCentral
Asus MX279AQNoAdvertised flicker free, unconfirmed
Asus PB279QNo
Asus PB278QRNoPart of EyeCare range, untested
Asus ROG Swift PG278QYesTFTCentral17/7/14
Asus ROG Swift PG279QYesTFTCentral23/10/15
Asus ROG Swift PG279AQYesPCmonitors9/12/15
Asus VC279HYesPrad.de7/9/15
Asus VC279N-WNo
Asus VX278HNo
Asus VX278NNo
Asus VX278QNo
BenQ BL2700HTNoFlicker free range
BenQ BL2710PTYesTFTCentral23/10/13confirmed in our lab and review
BenQ EW2740LYesOverclockers.ru6/2/14Part of new flicker free range, confirmed by Overclockers.ru. Also confirmed by Prad.de
BenQ GW2750HMUpdated model in flicker free range, untested
Flicker-free P/N: 9H.L8NLB.DBE
BenQ GW2760HMNoPart of new flicker free range, untested
Flicker-free P/N: 9H.L9LLA.DBE
BenQ GW2760HSYesTFTCentral21/6/13BenQ Flicker free range
Flicker-free P/N: 9H.L9NLB.QBE/9H.L9NLB.RBE
BenQ GW2765HTYesTFTCentralPart of new flicker free range, confirmed
BenQ SW2700PTNoPart of new flicker free range, untested
BenQ XL2720GNoPart of new flicker free range, untested
BenQ XL2720ZYesTFTCentralPart of new flicker free range
BenQ XL2730ZYesTFTCentralPart of new flicker free range
Dell P2714TYesPrad.de10/3/14
Dell S2716DGYesTFTCentral
Dell S2740LYesTFTCentral5/11/12Also confirmed by Prad.de
Dell U2713HYesTFTCentral11/1/13
Dell U2713HMYesTFTCentral22/8/12Also confirmed by Prad.de
Dell U2715HYesTFTCentral12/12/14Also confirmed by Prad.de
Dell U2716DYesPCmonitors20/1/15
DGM IPS-2701WPHYesTFTCentral19/7/12
Eizo ColorEdge CS270NoPart of new flicker free range, untested
Eizo Foris FS2735YesTFTCentral1/2/16
Fujitsu P27T-7 LEDYesPrad.de19/8/13Also confirmed by Extrahardware
HP Z27iYesOverclockers.ru27/1/14
HP ZR2740wYesTFTCentral20/11/12Also applies to v2 of the screen
Iiyama Black Hawkย  GE2788HSNoAdvertised as flicker free, untested
Iiyama XB2783HSUYesPrad.de24/3/14
LG 27MP75HMYesOverclockers.ru4/3/14
LG 27MP77HM-PYesPrad.de5/10/15
Monoprice 27″ IPS Zero-GYesTFTCentral14/8/13No backlight control, brightness reduces contrast ratio. Confirmed in our lab
Philips 272G5DYEBYesPCmonitors13/11/14
Philips 272P4APJKHBNoAdvertised as flicker free, untested
Philips 275P4VYKEBNo
Samsung S27C750PYesPCmonitors22/6/13
Samsung S27E370DSNo
Samsung S27E510CNoAdvertised as flicker free, untested
ViewSonic VP2770-LEDYesTFTCentral27/9/12Also confirmed by Prad.de
ViewSonic VP2780-4KYesTFTCentral30/7/15
28Acer XB280HKNoAdvertised as flicker free, untested
Acer XB281HKNo
Asus PB287QYesOverclockers.ru13/11/14
Asus VN289HNoEye-care range
Asus VN289QNoEye-care range
Iiyama B2888UHSU-B1YesPrad.de29/9/14
ViewSonic VG2847SmhNoFlicker free range
ViewSonic VG2860MHL-4KNoFlicker free range
ViewSonic VX2880mlNoFlicker free range
29Acer B296CLYesOverclockers.ru9/1/14
AOC q2963PmYesPCmonitors7/6/13Also confirmed by Prad.de
Asus MX299QYesPrad.de10/2/14
Asus PB298QYesPrad.de24/10/13
Asus VN289H-WNo
Dell U2913WMYesTFTCentral22/1/13Also confirmed by Prad.de
LG 29UB65-PYesPrad.de23/6/14
LG 29UC97Yes3Dnews.ruAdvertised as flicker safe, untested
LG 29UM65NoAdvertised as flicker safe, untested
Philips 298P4YesExtrahardware26/7/13
Samsung U28E590DNoAdvertised as flicker free, untested
Samsung U28E850RNoAdvertised as flicker free, untested
30.0Iiyama XB3070WQSNoAdvertised as flicker free, untested
NEC EA304WMiYesOverclockers.ru23/10/14Advertised as flicker free, untested
31.0LG 31MU97YesPrad.de2/2/15
31.1Eizo CG318-4KNoAdvertised as flicker free at all brightness settings (not hybrid), untested
31.5Eizo EV3237NoAdvertised as flicker free at all brightness settings (not hybrid), untested
Samsung U32D970QNoPart of flicker safe range, untested
Samsung U32E850RNoPart of flicker safe range, untested
32Acer B215HULNoPart of flicker safe range, untested
Asus PA328QNo
BenQ BL3200PTYesTFTCentral8/5/14Part of flicker free range
BenQ BL3201PTNoFlicker free range
BenQ BV3200PTNo
Philips BDM3270PQNoAdvertised as flicker free, not tested
Philips BDM3275UPNoAdvertised as flicker free, not tested
QNIX QX320QHDYesTFTCentral12/2/15Confirmed flicker free, but no backlight adjustment offered from brightness
34Acer Predator XR341CKYesTFTCentral8/7/15
Acer Predator X34YesTFTCentralShould be flicker free like XR341CK
AOC Q3277PquNo
AOC U3277PquNo
AOC u3477PquYesPrad.de5/12/14Advertised as flicker free, Confirmed
Dell U3415WYesTFTCentral11/3/15
LG 34UC97YesPrad.de15/12/14Part of ‘Flicker safe’ range. Confirmed
LG 34UC98No
LG 34UM65YesPrad.de13/10/14Part of ‘Flicker safe’ range. Confirmed
LG34UM67YesPrad.de29/6/15
LG 34UM95YesTFTCentral5/9/14Part of ‘Flicker safe’ range. Confirmed
35Acer Predator XZ35CUNo
Acer Predator Z35YesTFTCentral
BenQย  XR3501YesPrad.de21/9/15Advertised as flicker free, untested


Hybrid Backlight Dimming

Below are a list of models which are flicker free for part of their brightness adjustment range, but do use some form of PWM for other parts of the adjustment range.

SizeModelConfir-
med?
Source / LinkDateNotes
22Eizo EV2216WNoMarketed as flicker free with “hybrid solution”. Expected no PWM down to 20% brightness
23Eizo EV2316WNoReported to be PWM above 20% brightness
Eizo EV2336WYesPrad.de3/6/13PWM free down to 20% brightness, but used at 200Hz below
23.5Eizo Foris FG2421YesTFTCentral7/11/13Confirmed PWM free from 100 – 20 brightness. High PWM frequency of 18Khz from 20 – 0.
23.8Eizo Foris FS2434YesPrad.de17/11/14Confirmed PWM free from 100 – 6 brightness.
Eizo EV2450YesTFTCentral12/12/14No PWM down to 20% brightness, below that very high freq (18Kz) and low amplitude oscillation only
24Dell U2413YesTFTCentral13/2/13No PWM down to 20% brightness, but used 19 – 0% at high 8750Hz
Eizo EV2416WNoMarketed as flicker free with “hybrid solution”. Expected no PWM down to 20% brightness
Eizo EV2436WYesTFTCentral27/6/14Also confirmed by Prad.de. Flicker free down to 20% brightness, below that 200Hz PWM used
Eizo EV2455YesTFTCentral25/1/15No PWM down to 20% brightness, below that very high freq (18Kz) and low amplitude oscillation only. Also confirmed by Prad.de
27Acer B276HULYesOverclockers.ru13/2/14Looks to be PWM free but maybe some hybrid high freq PWM at brightness <20%. Also confirmed by Prad.de
Eizo EV2736WYesTFTCentral11/6/14PWM free down to 20% brightness, but used at 200Hz below. Also confirmed by Extrahardwareand Prad.de
Eizo Foris FS2735YesTFTCentral27/1/16PWM free down to 55% brightness, with low amplitude 2000Hz oscillation below
Samsung S27E650CYesPCmonitors26/11/15PWM free down to 30% brightness, but 180Hz PWM used below
32Samsung S32D850TYesPrad.de19/12/14Not specified in review at what setting PWM kicks in


Other Honourable Mentions

Below are some additional monitors which may be flicker free. This includes monitors which some reviews have tested to be PWM free, while other reviews suggest otherwise.

SizeModelSource / LinkDateNotes
24Asus PA249QPrad.de30/9/13Not full PWM control, but some oscillation. Low chance of flicker and very high freq of 25Khz
Dell S2440LTFTCentral5/10/12Our unit and that tested by PCmonitors.info showed no PWM. Other reviews including Prad.de showed PWM at 360Hz. Possibly two versions?
Dell UP2414QUser reports suggest PWM free, untested by review sites so may be high frequency PWM control.
Samsung S24A850DExtrahardware19/12/12Not full PWM control, but some oscillation. Low chance of flicker.
27Asus PA279QPrad.de14/10/13Not full PWM control, but some oscillation. Low chance of flicker and very high freq of 12Khz
Dell UP2715KPrad.de12/10/15Not PWM free, but very high frequency at 20.8Khz
LG 27EA83User Report19/2/14Possible new version without PWM as reported by user romkyns on Hardforum
Samsung S27A850DPrad.de9/3/12Not full PWM control, but some oscillation. Low chance of flicker. Also confirmed by Extrahardware
Samsung S27B970DTFTCentral14/8/12Prad.de test unit showed low amplitude PWM at 180Hz while our unit showed no PWM. Possible variation in units?
30Lenovo LT3053pPrad.de18/11/13PWM free, although some very high frequency oscillation, but that shouldn’t be perceptible

You can find the original articleย at TFT Central

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