What is difference between XGA and Active Matrix?

[Ace69]

I am looking at getting a laptop and I have seen some that have XGA TFT and others that have active matrix TFT? What is the difference anyway?
A friend says that he thinks that the XGA is viewable if you look at the screen from all angles and active matrix, you have to look straight at it.

 

[Barnaby W. Füi]

TFT is a lcd technology

xga is a resolution, i believe 1027x768

 

[pulpp]

XGA refers to the native resolution of the LCD screen, for example:

SVGA = 800x600

XGA = 1024x768

SXGA = 1400x1024 (i think)

UXGA = 1600x1200


active matrix is one of the methods an LCD is manufacuted, as far as i know pretty much all TFT screens now are active matrix, just that some laptop makers mention it in thier specs and some dont

 

[Random Variable]

SXGA - 1280x1024
UXGA - 1600x1200
UXGAW (HDTV) - 1920x1200
QXGA - 2048X1536
QSXGA - 2560x2048
QUXGA - 3200x2400
QUXGAW - 3840x2400

 

[Smbu]

SXGA+ = 1400x1050

 

[LikeLinus]

Not always true. I have a 15.4" Dell Inspiron 7400 and it's res is listed as SXGA = 1280x1024 . But my new Inspiron 8100 will be an SXGA also, but at 1400x1050.

 

[corkyg]

They are apples and oranges. XGA is a level of resolution - 1024 x 768. Active Matrix is another word for TFT or Thin Film Technology. Your misguided friend is thinking of the older DSTN display (cheaper than Active Matrix), and that does have a narrower viewing angle.

 

[Random Variable]

SXGA+ is indeed 1400X1050. In addition SXGAW is 1600X1024, which I believe is the native resolution of the SGI 1600SW.

 

[LikeLinus]

Then why were companies selling SXGA @ 1280x1024? It seems theres a skip between 1024 all the way to 1400?? Thats doesnt sound right. Theres probably no set standard for what they call SuperXGA and what the resolution is. It's probably anywhere from 1280 - 1400.

 

[Random Variable]

Because SXGA is 1280x1024. SXGA+ (SXGA Plus) is 1400x1050.

 

[LikeLinus]

Ah ok. thats what it is. Good catch!