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SOS αγορά οθόνης-επείγον!


tonypapadovic

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Δημοσ.

Μου χάλασε η παλιά οθόνη που την έχω δώσει στον πατέρα μου...!Το απόγευμα πρέπει να του πάρω άλλη γιατί την χρειάζεται. Θέλω μία μέχρι 180-190Ε, εκεί περίπου.

 

Είδα αυτές ενδεικτικά:

>http://www.cosmodata.gr/product_b.php?Lang=gr&id=3&cid=2&mid=18&pid=9461

>http://www.cosmodata.gr/product_b.php?Lang=gr&id=3&cid=2&mid=26&pid=10111

>http://www.cosmodata.gr/product_b.php?Lang=gr&id=3&cid=2&mid=26&pid=10110

 

Ότι άλλο, αν θέλετε προτείνετε. H χρήση της είναι καθαρά word και γενικά κανά office.

Δημοσ.

Και η Viewsonic έχει τρία έτη εγγύηση!

 

ΛΟΓΟΣ ΑΝΤΙΘΕΣΗΣ : 700:1

ΓΩΝΙΑ ΘΕΑΣΗΣ : H: 160/V: 160

 

Σε αυτά τα δύο τι είναι καλύτερο, όσο χαμηλότερα τόσο καλύτερα ή το αντίστροφο;

Δημοσ.

Γωνία θέασης μεγαλύτερες γωνίες είναι καλύτερο, αλλά:

 

1) δεν θα το χρειάζεται φαντάζομαι να βλέπει από το πλάι και

2) δεν είναι πραγματικές γωνίες αυτές...

 

Ε, ο λόγος σε τέτοιες οθόνες με ΤΝ πάνελ όσο και να είναι, τα χρώματα δεν θα απεικονίζονται το ίδιο καλά με άλλα panels! Οπότε και καλό contrast να έχει, δεν παίζει ρόλο

 

* Color gamut

"Color gamut" represents the range of colors that can be displayed using combinations of red, green, and blue subpixels. Certain monitors must emulate the colors (by dithering or frame rate control (FRC)) to display the full 24-bit of today's graphics adapters.

 

* Black level (darkness of the color black)

LCDs require a source of light to display an image. Most today use cold cathode fluorescent lights (CCFLs), while more expensive ones use LED. With either technology, the crystals have a hard time blocking the light. How well they can do this is quantized by the black level. This measures how many nits (candelas per square meter) are emitted when black is displayed. Lower the better for black. For white, you'd want the highest value possible. The low black and the high white brightness values will produce a high-contrast display, and that's what you're looking for in terms of colors.

 

* Response time

Response time measures how long it takes for one crystal cell to change its state from on to off. Some types of panels are faster than others in this category. The lower value of time (usually milliseconds) means a quicker change. A high response time can cause blurry/streaky effects in motion. A technology called ODC (overdriving circuit) can assist in reducing these effects.

 

* Viewing angle

The viewing angle measurement denotes how far to each side it is that you can still make out an undistorted image. This varies among panels as well, as do all of the above. On TN panels, the colors will invert when viewed at an extreme angle. VAs will generally just decrease in brightness with little color shift. IPS panels exhibit the fewest effects when viewing from a different angle.

 

* Input flexibility

Many monitors come with both a DVI (Digital Visual Interface) and VGA (Video Graphics Array) interface. DVI will deliver a perfect pictures in terms of geometry due to its digital nature. VGA, analog, can sometimes be noisy or blurry. Generally the difference is insignificant on LCDs 17" or smaller.

 

* Ergonomics

LCDs can be very flexible with physical adjustments. These may include height adjustment, tilt, swivel, pivot, and rotate (portrait/landscape).

 

It shouldn't come as a surprise all measurements are biased when it comes to manufacturers' specifications.

 

 

TN (Twisted Nematic): Without an ODC (overdriving circuit), this type of panel offers the fastest pixel response time. This does however come at the expensive of viewing angles and color fidelity. Out of all TFT-LCD panels, the TN type has the lowest contrast. It is also a 6-bit color depth panel, meaning dithering or frame rate control (FRC) must be employed to reach close to a full 8-bit depth. Pixels in their active state on a TN are black, while in their inactive, white.

 

S-IPS (Super In-Plane Switching): LG Philips LCD improved on IPS with their S-IPS technology. These offer a lower black level, higher contrast ratio, lower response time, and a wider viewing angle than traditional IPS technology. Color depth on S-IPS panels is 8-bit. The purple-black tinting still applies to wide viewing angles, but orange and red hues are greatly reduced versus other technologies at wider viewing angles.

 

Από Anandtech...

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