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Need Help total NOOB on HDTV

chris687
10-31-2009, 01:50 AM
So, I went down to my local bestbuy about a month ago and picked up a 32" Dynex LCD HDTV 720P... I am very happy with my purchased and got a $100 off from some cool guy at the return counter... Being on a budget I was on the most I could spend was $300 and that is what they sold it to me for...

I am very suprised how good it actually looks in my bedroom... My mom and dad bought Vizio's one for the family room and one for their bedroom... The one in our living room is 47" and we got it about 2 years back from costco... Then, they bought a 32" Vizio for their bedroom...

Well, out of all the HDTV's we have in the house I have to say I like mine the best...

Our living room 47" Vizio running at 1080i through a HDTV DVR cable box, seems like the tv doesn't refresh I guess, when something moves fast on the tv, like sports, or even like C.S.I. any fast moving object seems to trail and artifact... It's amazing how technology changes so fast I remember what we paid it was $1700 with no built in HDTV tuner... We thought it looked huge but now it looks smaller compared to my 32" TV....


My Dynex I am so happy with it... I had a 13" Sony CRT on a wall stand that comes out about 1 and half feet... The stand moves side to side so I can get it in the perfect viewing space which is nice...

Anyways, to my questions my HDTV says it is putting out 1080i when I feed it a program, DVD, or Gaming system... So whe does it do? Does, it convert 1080i to 720p? It must be doing something becuase the 1080i looks as good as 720p minus blurring of fast objects...

PFC5
10-31-2009, 04:38 AM
All LCDs (and DLPs & plasmas also) are what is called fixed pixel displays. That means they can only output ONE fixed resolution that is called the native resolution of the display meaning a 720p (really 1366x768p) display will ALWAYS display that, and a 1080p will always display 1920x1080p. Any different resolution that goes into the the display will be converted to that native resolution of the display. There is no 1080i with LCD panels. All are progressive so your parents 47" Vizio is a 1080p not a 1080i display. ;)

LCDs have improved in the pixel respond time (speed that pixels can change characteristics) over the last few years with each new year, but they are still more than 1000x slower than CRT tubes or plasmas. The larger the screen the more easily the blurriness of the slow LCD response times are seen. It is likely your current model year LCD has an improved pixel response time over a 2 year old model, but the size also plays a part too.

Hope this helps & welcome to the forum! :hithere:

Techlord
10-31-2009, 04:51 AM
All LCDs (and DLPs & plasmas also) are what is called fixed pixel displays. That means they can only output ONE fixed resolution that is called the native resolution of the display meaning a 720p (really 1366x768p) display will ALWAYS display that, and a 1080p will always display 1920x1080p. Any different resolution that goes into the the display will be converted to that native resolution of the display. There is no 1080i with LCD panels. All are progressive so your parents 47" Vizio is a 1080p not a 1080i display. ;)

LCDs have improved in the pixel respond time (speed that pixels can change characteristics) over the last few years with each new year, but they are still more than 1000x slower than CRT tubes or plasmas. The larger the screen the more easily the blurriness of the slow LCD response times are seen. It is likely your current model year LCD has an improved pixel response time over a 2 year old model, but the size also plays a part too.

Hope this helps & welcome to the forum! :hithere:

Why do the larger LCDs show more blurriness? Curious...

Loves2Watch
10-31-2009, 08:35 AM
Why do the larger LCDs show more blurriness? Curious...

The larger the screen, the easier it is for the human eye to resolve...

PFC5
10-31-2009, 12:22 PM
Why do the larger LCDs show more blurriness? Curious...

The larger the screen, the easier it is for the human eye to resolve...

Thanks L2W for answering for me. That is correct.

The blurred pixels are also larger so the blurred area is larger as well.

chris687
11-01-2009, 02:25 AM
Thanks for all the responses guys... I love my new HDTV and very happy with it...

dj funktacular
11-01-2009, 08:27 AM
congrats. I can't wait to get my hdtv.