X-bit labs

Started by: cmaxb | Date 11/01/04

Comments: 39 | Last Comment:  09/07/07

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1. >> So, the discomfort from the monitor is due to the bad quality of the image rather than to any radiation.

Mr. Artamonov, I am sorry, but I just do not buy your argument. Try this experiment: Do whatever daily activities you normally do, reading a book, using a pc, watching TV, eating, a couple of inches away from a regular monitor/TV. Making sure your head is close most of the time. Heck you could even try placing the monitor on the floor and taking a nap on the screen. If you are able to do this without any ill effects, then you must be a special person. I don't have the scientific explanation for it, but I don't think you can easily dismiss all effects for CRT's to image quality.

Chris

It has to be some kind of ultrasonic that gets in the head. There are high frequency components inside a monitor, if I recall correctly. Personally I find some TV:s to be extremely annoying as they right out whine!

2. Excellent review. Thx.

3. Wow! By far the best article on the subject i have seen so far! This clarified a lot for me. Thanks.

4. Thank you for this excellent guide! I didn't know many important things about LCDs before reading this.

5. Excellent article, but it left me with questions.

I am in the market for a 23" or larger Widescreen monitor. While I do some work with text, I am mainly interested in photo editing. Thus it would appear that I should get an S-IPS monitor. Do any of the 23" or larger widescreen monitors use S-IPS?

The manufacturer's specs don't tell what the matrix technology is. They often mention TFT.

Does TFT indicate TN?

Michael

>> Do any of the 23" or larger widescreen monitors use S-IPS?

No. There are also 23" MVA matrices from AU Optronics and 24" PVA matrices from Samsung.

>> Does TFT indicate TN?

No. TFT -- Thin Film Transistors -- is a technology used on almost all modern LCD matrices. "TFT matrix" is a synonym of "active matrix".

Oleg,

Thanks for the prompt reply, but your use of the word "also" confuses me, as in:

"No. There are also 23" MVA matrices from AU Optronics and 24" PVA matrices from Samsung."

Did you really mean to say "only" instead of "also"

Also I meant to say "IPS" not "S-IPS" in my query.

I gather that the Sony SDM-P234B (23" widescreen) uses MVA and the Samsung 243T (24" widescreen) uses PVA; also that the LG and Philips 23" widescreens also use MVA. As does the Apple 23" and 30" CinemaWide monitors (the latter surprises me, since I thought that Apple was widely used by graphic arts professionals).

So the conclusion is that if I absolute have to have a 23" (or larger) widescreen for photo editing work, my best bet would be the Samsun 24" but you would not recommend it.

Have I got that right?

Thanks again,
Michael

P.S. And thanks for your article too!!

6. Another very interesting point in this article is the disucssion of precision of digital cameras.

I have an Olympus E-20. Its raw format provides 10 bits per pixel. I've been going to some lengths to utilize this data: using Photoshop CS with its supeior support for 16-bit graphics, and maintaining Photoshop files (PSD files) with the 16 bit depth.

Sounds like I shouldn't have bothered.

Does the same apply to scanners? I have a Nikon Film scanner (about $3000, handles film to 2 1/4) that claims a 14-bit depth. I've always been suspicious that there were actually 14 bits of valid data, but assumed there were more than 8.

For that matter, my Epson flatbed scanner also claims more than 8 bits of precision.

Michael Bate

7. 17" LG Flatron E700SH calibration software required.

kinldy provide the same and do the needful.

sridhar.
98850 73309.

8. Its all bullshit
Lcd are as dangerous as CRT's are.
Im suffering while using lcd for years.
only a projector solved my problem

9. Wow! Really magnificent article about all the different TFT technologies! The article did make me suspicous of the (excelent) specs that are currently provided with the Dell 2405FPW screen which seems to have a PVA matrix. I guess it's smart to ask some people to check the problem with the details that get lost in the shadows if your viewing angle is perpendicular to the screen.

Thanks a lot of the very thorough article!

10. how to perfect calibrate our working moniter
i want perfect calibrate my moniter
i want to visual & paper print matching but moniter color & paper print was different but why

11. I think I have to re-read the theoretical part of this article many times if I want to fully appreciate the LCD technological development. Basic understanding of physics should help. Had the author provide some pointers to the graphics side (e.g. perspective, human-eye colour sensitivity etc.) of things would have been useful too. An excellent and sensible article overall.

12. The best overview I read so far.

13. Thank you for the fine and clear education on LCD and TFT technologies. Congratulation for your work on make clear the mind of the old newcomers on this field. Hetényi László Budapest Hungary (72M Electro engineer on telecommunication)

14. Can you please explain and show me the dynamic scattering in LCDs?

15. Excellent writeup! Marvellous

I hope there can be updates to it with respect to new screens that are emerging in the market! =)

16. very educational, since im currently in the market to purchase a high end lcd for gaming

17. Since it will stay long in Golden Collection of XBitLabs articles, I will suggest some add-ons for this article:

Please

- put the line of sight or the backlight source on your example pictures
- complete the review with TFT technology
- remind about another technology if they exist

Thanks

18. I thought this was a very good article. I read through most of it before I bought a new monitor, it really taught me a lot and I found it very interesting as well.

19. everything you want(need) to know about LCD.

SUPER THX!!

20. All right, excellent article. However almost one and a half year has passed since. I wonder if a follow up is in the queue, since I guess there's still a lot of potential in future LCD technology changes.

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