lcd producer

[insename2]

which is better samsung or lg.philips?

 

[xtknight]

Don't know. It's mostly subjective. LG.Philips is famous for their S-IPS type panels, which have the best viewing angles and are in the middle in terms of response time. They have 8-bit color. LG.Philips makes TN also.

Samsung makes TN and S-PVA type panels. TN panels display just 6 bits per subpixel and have limited viewing angles, but very fast response time. S-PVAs have the slowest response time, but middle in terms of viewing angle and 8-bit per subpixel color. All these can be combined with an overdrive chip to reduce the response time so that can knock response time off the disadvantages list of S-IPS and S-PVA.

LG.Philips uses a 6th generation fabrication plant (announced 7th) and Samsung is mass-producing at a 7th generation right now.

 

[insename2]

what about in terms of lifespan...
thx

 

[xtknight]

Lifespan? Mostly dependent on backlight and both use the same cold cathode fluorescent lamps sold within the panel. Found this on Google:

Ric:

I've been trying to stay out of the current LCD discussion...lots (and lots) of misinformation...it's a shame

Lamp life (backlight MTBF) is basically consistent throughout the industry. The story about different grades, such as home versus business is simply not true. (some consumers have to learn crank up the BS detector when talking to salespeople).

25k hours (MTBF) is the figure panel manufacturers give (to monitor manufacturers) in terms of product life. This is passed along to buyers, (OEMs such as 'D', 'C', 'I', etc.) who then decide how they will apply for their customers, in terms of unit and/or backlight warranty, etc. This value has been applied and stable for at least the last two years.

Note that today's LCD's are offering built-in 'screen savers', from the OSD. This (power off) feature is provided as a power conservation method (the micom stays powered up; backlight off)...please don't think you will be _extending_ the life of the backlight...25k hours is 25k hours, no matter how long it takes you to rack them up

For those that worry over such things...engineering spec. yada,yada,yada. 25k hrs/MTBF is based on an operating temperature of 25 deg. C @ maximum brightness, with the (degradation) requirement that the backlight be able to provide no less than 50% luminance up to 25k hours. An average graph would show a gentle curve falling off out beyond 15k, as an example.

Disclaimer...these are my opinions and not those of my employer This is all off the record folks, so speak to the hand if you have something to argue, quote, slam, endorse, etc. You are not free to use these words beyond your own head, please.

Ken Tidwell
Samsung Electronics - Visual Display Division, R & D, Suwon Korea.

 

[insename2]

thanks xtknight, great info

which one is less likely to have this problem tho?

http://img389.imageshack.us/img389/5424/imaged95e6388b51711d89rz.jpg

(i ask because i have encountered this before and am curious)

 

[xtknight]

Uhhh....I'm not sure what that is exactly, and don't know which is less likely to have it. Neither should in reality. I'd say that problem has got to be pretty rare.

 

[insename2]

k, thx

 

[PhoenixOrion]

Originally posted by: insename2
what about in terms of lifespan...
thx

mostly depends on your usage too. some people forget that you actually need to turn the monitor off (automatically or manually) when not in use.