Flicker free monitors

Quick Index

Please note: There has been a massive surge in the focus on ‘flicker-free’ 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:

Size Model Confir-
med?
Source / Link Date Notes
17 BenQ BL702A No Part of new flicker free range, untested
19 BenQ BL902TM No Updated model in flicker free range, untested.Flicker-free P/N: 9H.L5FLA.DBE
BenQ BL912 No Part of new flicker free range, untested
BenQ GL2023A No Updated model in flicker free range, untested.Flicker-free P/N: 9H.LA1LA.D8E / 9H.LA1LB.D8E
19.5 Asus VX207NE No
21.5 Acer H226HQLbmid Yes Extrahardware 10/5/13
AOC E2276VWM6 No Advertised as flicker-free, untested
Asus VX228H No
BenQ GW2255 No Updated model in flicker free range, untested.Flicker-free P/N: 9H.LA2LA.DPE/9H.LA2LB.DPE/ 9H.LA2LA.DPU
BenQ GW2265M No Updated model in flicker free range, untested.Flicker-free P/N: 9H.LASLA.DPE
BenQ GW2265HM No Updated model in flicker free range, untested.Flicker-free P/N: 9H.LASLA.DBE/9H.LASLA.DBU
BenQ VW2235H No Part of new flicker free range, untested
BenQ VX2250 No Part of new flicker free range, untested
BenQ VZ2250 No advertised as flicker free, untested
Dell P2214H Yes Overclockers.ru 19/12/13
ViewSonic VG2233Smh No advertised as flicker free, untested
ViewSonic VX2263Smhl-W No advertised as flicker free, untested
22 BenQ BL2211M No Part of new flicker free range, untested.
BenQ BL2211TM No Part of new flicker free range, untested.
ViewSonic VG2235m No Advertised as flicker free, untested
23 Asus VX239H No advertised as flicker free, untested
BenQ GW2320 No Part of new flicker free range, untested.
BenQ VX2350 No Part of new flicker free range, untested
BenQ VX2350HM No Part of new flicker free range, untested
BenQ VZ2350 No advertised as flicker free, untested
BenQ VZ2350HM No advertised as flicker free, untested
Dell S2340T Yes Prad.de 18/2/13
Dell U2312HM No Reported to be PWM free from Rev A06. Not confirmed
LG 23MB35PY-B Yes Prad.de 24/11/14
LG 23MP65D-P Yes Overclockers.ru 7/4/14
ViewSonic TD2340 Yes Prad.de 22/4/13
ViewSonic VX2363Smhl-W No advertised as flicker free, untested
23.5 Samsung U24E590D No Advertised as flicker-free, untested
Samsung U24E850R No Advertised as flicker-free, untested
23.6 AOC E2276VWM6 No Advertised as flicker-free, untested
Samsung S24D390HL Yes PCmonitors 29/4/14
Samsung S24D590PL Yes NCX 30/4/14
Samsung S24E370DL No
ViewSonic VX2475Smhl Yes PCmonitors 1/1/16
23.8 Acer G247HU No Part of flicker free range, untested
AOC i2473Pwy Yes PCmonitors 29/5/14
AOC i2481FXH No
BenQ BL2420Z No
BenQ EZ2450L No Part of new flicker free range, untested
BenQ SW2401PT No Part of new flicker free range, untested
Dell P2414H Yes TFTCentral 8/10/13 Full range from 100 –  0% brightness
Dell P2416D Yes PCmonitors 18/10/15 Also confirmed by laptopmedia
Dell S2415H Yes PCmonitors 30/9/14
Dell U2414H Yes TFTCentral 23/1/14 Full range from 100 –  0% brightness
Eizo FS2434 No Advertised as flicker free at all brightness settings (not hybrid), untested
LG 24MP57VQ-P Yes Prad.de 19/10/15
LG 24MP76HM-S Partly ITC.ua 26/3/14 Part of Flicker-safe range. Partly tested but not thoroughly.
24 Acer GN246HLB No Part of flicker free range, untested
Acer XB240H No Part of flicker free range, untested
Acer XB240HA No Part of flicker free range, untested
AOC g2460Pg Yes PCmonitors 29/10/14
AOC i2460Pxqu Yes Prad.de 7/4/14
AOC i2473Pwm No Advertised as flicker free, untested
BenQ BL2405HT No Part of new flicker free range, untested
BenQ BL2410PT No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L9JLB.RBE
BenQ BL2411PT Yes Prad.de 29/7/13 Part of new flicker free range. Also confirmed by Extrahardware
BenQ EW2440L Yes Prasys.info 2/2/14 Part of new flicker free range.
BenQ GL2450 No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L7ALA.DPE/9H.L7ALA.DPU
BenQ GL2450HM No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L7CLA.DBE
BenQ GL2450HT No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L7CLB.DB9
BenQ GL2460 No Updated model in flicker free range, untested
Flicker-free P/N: 9H.LA6LB.DPE/9H.LA6LB.RPE
BenQ GL2460HM No Updated model in flicker free range, untested
Flicker-free P/N: 9H.LA7LB.DBE/9H.LA7LB.RBE
BenQ GW2450HM No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L8RLB.DBE/9H.L8RLA.DBE
BenQ GW2460HM No Updated model in flicker free range, untested.
Flicker-free P/N: 9H.L9GLB.DBE/9H.L7CLA.DBU
BenQ RL2455HM No Updated model in flicker free range, untested
Flicker-free P/N: 9H.LA9LB.DBE
BenQ VW2430H No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L9PLB.DWE
BenQ XL2411T No Updated model in flicker free range, untested
Flicker-free P/N: 9H.L9SLB.DBE
BenQ XL2411Z No Part of new flicker free range, untested
BenQ XL2420T (Rev 2.0) Yes Prad.de 19/5/14 Updated model in flicker free range
Flicker-free P/N: 9H.L7PLB.DBE
BenQ XL2420TE No Part of new flicker free range, untested
BenQ XL2420G No Part of new flicker free range, untested
BenQ XL2420Z Yes PCmonitors 17/3/14 Part of new flicker free range, confirmed
BenQ XL2430T Yes Overclockers.ru 27/11/14 Part of new flicker free range, confirmed
Dell U2415 Yes TFTCentral Confirmed flicker free
Eizo ColorEdge CS240 No Advertised as flicker free, untested
HP Z24i Yes Prad.de 16/12/13
Iiyama X2483HSU Yes Overclockers.ru 13/1/14
LG 24GM77-B Yes Prad.de 10/10/14
LG 24MB65Y-B Yes Prad.de 10/11/14
Samsung S24C750P Yes Svethardware 29/10/13
Samsung S24C770T Yes Prad.de 30/12/13
ViewSonic VG2401mh No Advertised as flicker free, untested
ViewSonic VG2435Sm No Advertised as flicker free, untested
ViewSonic VG2438Sm No Advertised as flicker free, untested
25 Acer G257HU No Part of flicker free range, untested
Acer H257HU No Part of flicker free range, untested
Asus MX259H No
AOC Q2577PWQ No
Dell U2515H Yes TFTCentral 18/2/15
LG 25UM65 Yes
Philips 258B6QJEB No
27 Acer G277HU No Part of flicker free range, untested
Acer K272HULA No Part of flicker free range, untested
Acer K272HULB No Part of flicker free range, untested
Acer S277HK No Part of flicker free range, untested
Acer XB270H No Part of flicker free range, untested
Acer XB270HA No Part of flicker free range, untested
Acer XB270HU Yes TFTCentral 24/2/15
Acer XB271HK Yes TFTCentral 26/2/16
Acer XB271HU No
Acer XF270HU No
Acer XG270HU Yes TFTCentral
Achieva Shimian QH270 Yes Prad.de 15/7/12 No backlight control, brightness reduces contrast ratio. Also confirmed in our lab
Achieva Shimian 27″ IPS Zero-G Yes TFTCentral 14/8/13 No backlight control, brightness reduces contrast ratio. Confirmed in our lab
AOC i2781FH No
AOC q2770pqu Yes TFTCentral 16/7/14 Also confirmed by PCmonitors
Apple 27″ Cinema Display No Reported to be PWM free, unconfirmed
Apple 27″ Thunderbolt No Reported to be PWM free, unconfirmed
Asus MG279Q Yes TFTCentral
Asus MX279AQ No Advertised flicker free, unconfirmed
Asus PB279Q No
Asus PB278QR No Part of EyeCare range, untested
Asus ROG Swift PG278Q Yes TFTCentral 17/7/14
Asus ROG Swift PG279Q Yes TFTCentral 23/10/15
Asus ROG Swift PG279AQ Yes PCmonitors 9/12/15
Asus VC279H Yes Prad.de 7/9/15
Asus VC279N-W No
Asus VX278H No
Asus VX278N No
Asus VX278Q No
BenQ BL2700HT No Flicker free range
BenQ BL2710PT Yes TFTCentral 23/10/13 confirmed in our lab and review
BenQ EW2740L Yes Overclockers.ru 6/2/14 Part of new flicker free range, confirmed by Overclockers.ru. Also confirmed by Prad.de
BenQ GW2750HM Updated model in flicker free range, untested
Flicker-free P/N: 9H.L8NLB.DBE
BenQ GW2760HM No Part of new flicker free range, untested
Flicker-free P/N: 9H.L9LLA.DBE
BenQ GW2760HS Yes TFTCentral 21/6/13 BenQ Flicker free range
Flicker-free P/N: 9H.L9NLB.QBE/9H.L9NLB.RBE
BenQ GW2765HT Yes TFTCentral Part of new flicker free range, confirmed
BenQ SW2700PT No Part of new flicker free range, untested
BenQ XL2720G No Part of new flicker free range, untested
BenQ XL2720Z Yes TFTCentral Part of new flicker free range
BenQ XL2730Z Yes TFTCentral Part of new flicker free range
Dell P2714T Yes Prad.de 10/3/14
Dell S2716DG Yes TFTCentral
Dell S2740L Yes TFTCentral 5/11/12 Also confirmed by Prad.de
Dell U2713H Yes TFTCentral 11/1/13
Dell U2713HM Yes TFTCentral 22/8/12 Also confirmed by Prad.de
Dell U2715H Yes TFTCentral 12/12/14 Also confirmed by Prad.de
Dell U2716D Yes PCmonitors 20/1/15
DGM IPS-2701WPH Yes TFTCentral 19/7/12
Eizo ColorEdge CS270 No Part of new flicker free range, untested
Eizo Foris FS2735 Yes TFTCentral 1/2/16
Fujitsu P27T-7 LED Yes Prad.de 19/8/13 Also confirmed by Extrahardware
HP Z27i Yes Overclockers.ru 27/1/14
HP ZR2740w Yes TFTCentral 20/11/12 Also applies to v2 of the screen
Iiyama Black Hawk  GE2788HS No Advertised as flicker free, untested
Iiyama XB2783HSU Yes Prad.de 24/3/14
LG 27MP75HM Yes Overclockers.ru 4/3/14
LG 27MP77HM-P Yes Prad.de 5/10/15
Monoprice 27″ IPS Zero-G Yes TFTCentral 14/8/13 No backlight control, brightness reduces contrast ratio. Confirmed in our lab
Philips 272G5DYEB Yes PCmonitors 13/11/14
Philips 272P4APJKHB No Advertised as flicker free, untested
Philips 275P4VYKEB No
Samsung S27C750P Yes PCmonitors 22/6/13
Samsung S27E370DS No
Samsung S27E510C No Advertised as flicker free, untested
ViewSonic VP2770-LED Yes TFTCentral 27/9/12 Also confirmed by Prad.de
ViewSonic VP2780-4K Yes TFTCentral 30/7/15
28 Acer XB280HK No Advertised as flicker free, untested
Acer XB281HK No
Asus PB287Q Yes Overclockers.ru 13/11/14
Asus VN289H No Eye-care range
Asus VN289Q No Eye-care range
Iiyama B2888UHSU-B1 Yes Prad.de 29/9/14
ViewSonic VG2847Smh No Flicker free range
ViewSonic VG2860MHL-4K No Flicker free range
ViewSonic VX2880ml No Flicker free range
29 Acer B296CL Yes Overclockers.ru 9/1/14
AOC q2963Pm Yes PCmonitors 7/6/13 Also confirmed by Prad.de
Asus MX299Q Yes Prad.de 10/2/14
Asus PB298Q Yes Prad.de 24/10/13
Asus VN289H-W No
Dell U2913WM Yes TFTCentral 22/1/13 Also confirmed by Prad.de
LG 29UB65-P Yes Prad.de 23/6/14
LG 29UC97 Yes 3Dnews.ru Advertised as flicker safe, untested
LG 29UM65 No Advertised as flicker safe, untested
Philips 298P4 Yes Extrahardware 26/7/13
Samsung U28E590D No Advertised as flicker free, untested
Samsung U28E850R No Advertised as flicker free, untested
30.0 Iiyama XB3070WQS No Advertised as flicker free, untested
NEC EA304WMi Yes Overclockers.ru 23/10/14 Advertised as flicker free, untested
31.0 LG 31MU97 Yes Prad.de 2/2/15
31.1 Eizo CG318-4K No Advertised as flicker free at all brightness settings (not hybrid), untested
31.5 Eizo EV3237 No Advertised as flicker free at all brightness settings (not hybrid), untested
Samsung U32D970Q No Part of flicker safe range, untested
Samsung U32E850R No Part of flicker safe range, untested
32 Acer B215HUL No Part of flicker safe range, untested
Asus PA328Q No
BenQ BL3200PT Yes TFTCentral 8/5/14 Part of flicker free range
BenQ BL3201PT No Flicker free range
BenQ BV3200PT No
Philips BDM3270PQ No Advertised as flicker free, not tested
Philips BDM3275UP No Advertised as flicker free, not tested
QNIX QX320QHD Yes TFTCentral 12/2/15 Confirmed flicker free, but no backlight adjustment offered from brightness
34 Acer Predator XR341CK Yes TFTCentral 8/7/15
Acer Predator X34 Yes TFTCentral Should be flicker free like XR341CK
AOC Q3277Pqu No
AOC U3277Pqu No
AOC u3477Pqu Yes Prad.de 5/12/14 Advertised as flicker free, Confirmed
Dell U3415W Yes TFTCentral 11/3/15
LG 34UC97 Yes Prad.de 15/12/14 Part of ‘Flicker safe’ range. Confirmed
LG 34UC98 No
LG 34UM65 Yes Prad.de 13/10/14 Part of ‘Flicker safe’ range. Confirmed
LG34UM67 Yes Prad.de 29/6/15
LG 34UM95 Yes TFTCentral 5/9/14 Part of ‘Flicker safe’ range. Confirmed
35 Acer Predator XZ35CU No
Acer Predator Z35 Yes TFTCentral
BenQ  XR3501 Yes Prad.de 21/9/15 Advertised 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.

Size Model Confir-
med?
Source / Link Date Notes
22 Eizo EV2216W No Marketed as flicker free with “hybrid solution”. Expected no PWM down to 20% brightness
23 Eizo EV2316W No Reported to be PWM above 20% brightness
Eizo EV2336W Yes Prad.de 3/6/13 PWM free down to 20% brightness, but used at 200Hz below
23.5 Eizo Foris FG2421 Yes TFTCentral 7/11/13 Confirmed PWM free from 100 – 20 brightness. High PWM frequency of 18Khz from 20 – 0.
23.8 Eizo Foris FS2434 Yes Prad.de 17/11/14 Confirmed PWM free from 100 – 6 brightness.
Eizo EV2450 Yes TFTCentral 12/12/14 No PWM down to 20% brightness, below that very high freq (18Kz) and low amplitude oscillation only
24 Dell U2413 Yes TFTCentral 13/2/13 No PWM down to 20% brightness, but used 19 – 0% at high 8750Hz
Eizo EV2416W No Marketed as flicker free with “hybrid solution”. Expected no PWM down to 20% brightness
Eizo EV2436W Yes TFTCentral 27/6/14 Also confirmed by Prad.de. Flicker free down to 20% brightness, below that 200Hz PWM used
Eizo EV2455 Yes TFTCentral 25/1/15 No PWM down to 20% brightness, below that very high freq (18Kz) and low amplitude oscillation only. Also confirmed by Prad.de
27 Acer B276HUL Yes Overclockers.ru 13/2/14 Looks to be PWM free but maybe some hybrid high freq PWM at brightness <20%. Also confirmed by Prad.de
Eizo EV2736W Yes TFTCentral 11/6/14 PWM free down to 20% brightness, but used at 200Hz below. Also confirmed by Extrahardwareand Prad.de
Eizo Foris FS2735 Yes TFTCentral 27/1/16 PWM free down to 55% brightness, with low amplitude 2000Hz oscillation below
Samsung S27E650C Yes PCmonitors 26/11/15 PWM free down to 30% brightness, but 180Hz PWM used below
32 Samsung S32D850T Yes Prad.de 19/12/14 Not 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.

Size Model Source / Link Date Notes
24 Asus PA249Q Prad.de 30/9/13 Not full PWM control, but some oscillation. Low chance of flicker and very high freq of 25Khz
Dell S2440L TFTCentral 5/10/12 Our unit and that tested by PCmonitors.info showed no PWM. Other reviews including Prad.de showed PWM at 360Hz. Possibly two versions?
Dell UP2414Q User reports suggest PWM free, untested by review sites so may be high frequency PWM control.
Samsung S24A850D Extrahardware 19/12/12 Not full PWM control, but some oscillation. Low chance of flicker.
27 Asus PA279Q Prad.de 14/10/13 Not full PWM control, but some oscillation. Low chance of flicker and very high freq of 12Khz
Dell UP2715K Prad.de 12/10/15 Not PWM free, but very high frequency at 20.8Khz
LG 27EA83 User Report 19/2/14 Possible new version without PWM as reported by user romkyns on Hardforum
Samsung S27A850D Prad.de 9/3/12 Not full PWM control, but some oscillation. Low chance of flicker. Also confirmed by Extrahardware
Samsung S27B970D TFTCentral 14/8/12 Prad.de test unit showed low amplitude PWM at 180Hz while our unit showed no PWM. Possible variation in units?
30 Lenovo LT3053p Prad.de 18/11/13 PWM free, although some very high frequency oscillation, but that shouldn’t be perceptible

You can find the original article at TFT Central