[TechAssist] Re: Sony Wega LCD 42" Technology?
- From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 15 Dec 2004 08:18:59 -0600
So what do you call deleting half of the information?
There are professional HDTV cameras that output 1080p and can run 24,
25, or 30 frames per second.
Two of the 18 ATSC formats are 1080p at 24 frames per second (fps) and
1080p at 30 fps. There are three 720 formats, 24, 30, and 60 fps, all
progressive scan.
I would agree that 60 frames per second would give better "fast" or
high-motion displays. But as always, the outcome depends on the source.
Any way you look at it twice the information has the "potential" of a
better picture.
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
Leonard Caillouet wrote:
> Saying that fixed pixel displays show only half the picture is very
> misleading, actually incorrect. These displays have to convert 1080i to
> 720p, true, but 720p is not inherently inferior. In fact, for broadcasts in
> 720p, one could make a good case for it being superior. The debate over
> 720p and 1080i will go on, but it is clear that while 1080i has better
> spatial resolution for low motion images, 720p is clearly superior in terms
> of motion. Remember, the p means progressive. In the same time period,
> 1/60 sec, it is 1080i that is giving you only half of the picture because it
> is interlaced.
>
> The real problem with the fact that most of the fixed pixel displays are 720
> (or 768) vertical is that the 1080i signals have to be scaled to 720 and
> de-interlaced. The artifacts of any scaling are going to be visible on any
> but the best processors. Similarly, CRT based sets don't display 720p and
> have to scale that to 1080 and interlace it.
>
> Leonard Caillouet
> Electronics World
> 1261 NW 76 Blvd
> Gainesville, FL 32606
> 352-332-5608
> FAX 352-332-5668
>
> ----- Original Message -----
> From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, December 14, 2004 8:50 AM
> Subject: [TechAssist] Re: Sony Wega LCD 42" Technology?
>
>
>
>>The LCD projection TVs use a mercury lamp, not backlighting.
>>
>>Personally I think the LCD TVs have a better picture than the CRT
>>projection TVs, but one of my main criteria is convergence. I think
>>that the DLP sets have the best picture.
>>
>>Remember that the current LCD, DLP, and Plasma TVs only show about half
>>the picture. That is, most are 922,000 or 910,000 pixels (720p native)
>>were 1080i has over 2.1 million pixels.
>>
>>Sharp has announced the release of a 1080i 2.1 Megapixel LCD.
>>
>>Wayne Vanaman
>>Omega Electronics
>>6904 W Fairfield Dr
>>Pensacola, Fl. 32506-3310
>>
>>Wayne@xxxxxxxxxxxxxxxxxxxxx
>>WWW.PensacolaTVRepair.Com
>>
>>850-456-5995 voice
>>850-458-6369 fax
>>
>>
>>
>>Bruce Tiedeman wrote:
>>
>>>Thank you very much,Damon and Wayne,
>>> I went to look at these sets to compare picture with the rear
>
> projection.
>
>>>Comparing Sony only! We decided on rear projection much cheaper in
>
> bigger
>
>>>size sets. Not my choice but there money. Yes,the LCD are very
>
> expensive,
>
>>>should come down in price in time. The LCD are lighter , not as bulky
>
> and
>
>>>picture quality similar to normal rear projection. I was wondering if
>
> they
>
>>>lowered the high voltage in developing the LCD backlighting for picture.
>>>This should make it more reliable if they did.
>>>Bruce.
>>>
>>>
>>>
>>>----- Original Message -----
>>>From: "Damon" <damon101@xxxxxxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Tuesday, December 14, 2004 7:43 AM
>>>Subject: [TechAssist] Re: Sony Wega LCD 42" Technology?
>>>
>>>
>>>
>>>
>>>>They are reliable, the bulbs were estimated to last 8000 hours (4 years)
>>>
>>>but
>>>
>>>
>>>>the same company that estimated.....well they "actualized" it to be 6000
>>>>hours (3 years). Only problem will be the bulb replacement, and
>
> sometimes
>
>>>>the bulb's power supply......I'd buy both if they were reasonably
>>>>priced...which they are not.
>>>>
>>>>Damon Brunger
>>>>Telrad Electronics
>>>>Ft. Wayne, IN
>>>>----- Original Message -----
>>>>From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
>>>>To: <techassist@xxxxxxxxxxxxx>
>>>>Sent: Monday, December 13, 2004 9:26 AM
>>>>Subject: [TechAssist] Sony Wega LCD 42" Technology?
>>>>
>>>>
>>>>
>>>>
>>>>>Is there any one on our list that can share some information on this
>
> LCD
>
>>>>>technology. . Concerned with long term reliability if there is such a
>>>>
>>>>thing.
>>>>
>>>>
>>>>>I am following this up for a family member .You can email me privately
>>>
>>>if
>>>
>>>
>>>>>you like.
>>>>>thanks
>>>>>Bruce.
>>>>>
>>>>>btied@xxxxxxxxxxxx
>>>>>
>>>>>B&T Electronics
>>>>>139 Margaret St
>>>>>Sarnia Ontario
>>>>>Canada
>>>>>N7T 2Y3
>>>>>519 344 1850
>>>>>
>>>>>
>>>>>
>>>>
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