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. |
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.
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 |
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| BenQ GL2450HM | No | Updated model in flicker free range, untested Flicker-free P/N: 9H.L7CLA.DBE |
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| BenQ GL2450HT | No | Updated model in flicker free range, untested Flicker-free P/N: 9H.L7CLB.DB9 |
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| 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 |
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| BenQ GW2450HM | No | Updated model in flicker free range, untested Flicker-free P/N: 9H.L8RLB.DBE/9H.L8RLA.DBE |
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| BenQ GW2460HM | No | Updated model in flicker free range, untested. Flicker-free P/N: 9H.L9GLB.DBE/9H.L7CLA.DBU |
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| BenQ RL2455HM | No | Updated model in flicker free range, untested Flicker-free P/N: 9H.LA9LB.DBE |
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| BenQ VW2430H | No | Updated model in flicker free range, untested Flicker-free P/N: 9H.L9PLB.DWE |
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| BenQ XL2411T | No | Updated model in flicker free range, untested Flicker-free P/N: 9H.L9SLB.DBE |
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| 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 |
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| BenQ GW2760HM | No | Part of new flicker free range, untested Flicker-free P/N: 9H.L9LLA.DBE |
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| 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 |
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 |
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
