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LG's new 1Hz display is the secret behind a new laptop's battery life

pcworld.com

121–130 of 186 posts

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#121
post #72

Earlier quoted context omitted.

At the software level yes, but it seems nobody has taken the time to do this at the hardware level as well. This is LG's stab at it.

Apple has been doing this since they started having 'always-on' displays.

So has Samsung, but we're talking mobile devices with OLED displays, which is an entirely different universe both hardware and software-wise.

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#122
post #64

Earlier quoted context omitted.

Ostensibly any display capable of VRR should be able to operate at any range.

You don't need VRR for this, but there are some step functions of usefulness: 24Hz - now you can correctly play movies. 30Hz - NTSC (deinterlaced) including TV shows + video game emulators. 50Hz - (24 * 2 = 50 in Hollywood. Go look it up!) Now you can correctly play PAL and movies. 120Hz - Can play frame-accurate movies and NTSC (interlaced or not). Screw Europe because the judder is basically unnoticeable at 120Hz.…

240 = 2 x 120, or 4 x 60 (or 8 x 30)

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#123
post #95

Earlier quoted context omitted.

They dont buy it for this purpose. Its just end up like that for a lot of people I know since it just weird device between iphone and macbook that end not being used for much.

It’s a professional mobile artist bonanza idk why you claim it isn’t used much when this expensive device is more than earning its worth Yeah sure if you buy it as a toy it may not be used for much lol. Check your consumerism

Yeah so pretty niche use case. No need to attack others with snarky childish comments just because you dont like reality out there

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#124

Earlier quoted context omitted.

It’s a professional mobile artist bonanza idk why you claim it isn’t used much when this expensive device is more than earning its worth Yeah sure if you buy it as a toy it may not be used for much lol. Check your consumerism

Yeah so pretty niche use case. No need to attack others with snarky childish comments just because you dont like reality out there

First of all I love snark

Second, it is not a fault of the device that consumers are brain dead, buying something they do not need and then whine about how the device is “useless”. It sucks to suck

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#125
post #41

Anyone who has accidentally snapped the controller off a working LCD can tell you that the pixel capacitance keeps the colours approximately correct for about 10 seconds before it all becomes a murky shadowy mess... So it makes sense you could cut the refresh time down to a second to save power... Although one wonders if it's worth it when the backlight uses far more power than the control electronics...

These are self emissive pixels.

Edit: apparently not? Article says OLED with this tech will come in 2027, seems this panel it’s LCD

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#126

> A 1Hz panel is almost, but not quite, on the level of an e-ink panel, which isn’t the prettiest to look at. level of what? Power consumption? dude e-ink takes 0 power between refreshs. And e-ink is pretty?

It just proved the author knows nothing about either technology.

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#127
post #59
post #32

> That will help save enormous amounts of power: up to 48 percent on a single charge, Why does refresh rate have such a large impact on power consumption? I understand that the control electronics are 60x more active at 60 Hz than 1 Hz, but shouldn't the light emission itself be the dominant source of power consumption by far?

Before OLED (and similar), most displays were lit with LEDs (behind or around the screen, through a diffuser, then through liquid crystals) which was indeed the dominant power draw... like 90% or so! But the article is about an OLED display, so the pixels themselves are emitting light.

I just wish "we" wouldn't have discarded the option to use pure black for dark modes in favor of a seemingly ever-brightening blue-grey...

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#128
post #87
post #32

> That will help save enormous amounts of power: up to 48 percent on a single charge, Why does refresh rate have such a large impact on power consumption? I understand that the control electronics are 60x more active at 60 Hz than 1 Hz, but shouldn't the light emission itself be the dominant source of power consumption by far?

I used to be a display architect about 15 years back (for Qualcomm mirasol, et al), so my knowledge of the specifics / numbers is outdated. Sharing what I know. High pixel density displays have disproportionately higher display refresh power (not just proportional to the total number of pixels as the column lines capacitances need to be driven again for writing each row of pixels). This was an important concern as hi…

Since you are knowledgable about this, do you have any idea what happened to Mirasol technology? I was fascinated by those colour e-paper like displays, and disappointed when plans to manufacture it was shelved. Then I learnt Apple purchased it but it looks more like a patent padding purchase than for tech development as nothing has come out of it form Apple too. Is it in some way still being developed or parts of its research tech being used in display development?

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#129
post #77

Earlier quoted context omitted.

From what I understand, the laptop will reduce the refresh rate (of the entire display) to as low as 1Hz if what is being displayed effectively “allows” it. For example: - reading an article with intermittent scrolling - typing with periodic breaks

Articles have animated ads, though.

It would help making the ad less distracting, in some cases.

Re: LG's new 1Hz display is the secret behind a new laptop's battery life

#130
post #77

Earlier quoted context omitted.

From what I understand, the laptop will reduce the refresh rate (of the entire display) to as low as 1Hz if what is being displayed effectively “allows” it. For example: - reading an article with intermittent scrolling - typing with periodic breaks

Articles have animated ads, though.

not with an adblocker
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