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Since they call 850x480 ED shouldn't they call 1024x768 ED+ or ED on viagra..... and not HD? The HD spec as I understand it is 16:9 at 1080 lines, should not the HD label be reserved for 1920x1080 then....no?? I mean, if you do the math, 1024x768 is only 40% of the HD pixel count of 2 million pixels.


I'm sure this has been covered before....but I am new to the forum.
 

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"HD" asks for a line count of 720 or more. So 1024x768 is HD. There are two standard formats, namely 1280x720 and 1920x1080. Both are HD. Everything in between is ok, too. One could argue that 1024x768 is not "full HD", but since the specification only mentions lines (afaik) and not columns, it should probably be accepted as HD.
 

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Let's just say this has been covered in great detail quite a few times before.


Many on the forum believe that 1024x768 should not be categorized as HD, but the manufacturers have decided to go strictly by vertical resolution of at least 720, so that is how we get to where we are.
 

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In addition to the other comments posted here, also be aware that in the 1080i standard the scan lines are interlaced, meaning that 540 lines are displayed and then the alternate 540 lines are displayed.


In the 720p standard, all 720 lines are refreshed together and there is no interlacing involved.
 

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Actually HD can be 1280x720 in the 720p format, so its not just 1920x1080. As far as displays, the terms are pretty much marketing names and up to the manufacturers - they just call the 1024x768 panels "HD" to differentiate them from the 852x480 "ED" ones. If they come out later with a higher resolution 42" plasma, I wonder what they will name that? I personally don't go by the labels, just look at the raw numbers and decide if in that size you need more resolution at a specific viewing distance.
 

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heres some info:


In response to the proliferation of new digital

television (DTV) products available at a range of

price points, the Consumer Electronics Association

(CEA) has introduced more detailed definitions for

the DTV products now available to consumers. The

new product definitions, with corresponding logos

identifying each class of products, are designed

to give retailers and consumers a clearly defined

explanation of the various choices in the growing

digital TV marketplace.

NEW CATEGORY OFFERS MORE CHOICE

A new digital TV product category called Enhanced

Definition TV (EDTV) has been added between High

Definition TV (HDTV) and Standard Definition TV

(SDTV). EDTV products are digital TVs with higher

display performance than SDTV. This new category

offers consumers another range of options when

purchasing DTV products.

COMPONENT PRODUCTS CLEARLY DEFINED

The new definitions and logos also address the

component nature of many manufacturers’ television

product lines. With new definitions and logos for

“monitors†and “tuners,†consumers and retailers will

now be able to distinguish sets with integrated DTV

tuners from monitors and tuners sold separately.

Therefore, consumers can be sure that the EDTV or

HDTV monitor they purchase can be combined with

the appropriate tuner to receive digital broadcasts

and display at Enhanced Definition (ED) or High

Definition (HD) quality levels.

NEW CLARITY FOR RETAILERS AND CONSUMERS

The definitions are expected to be incorporated into

manufacturers’ television marketing materials in

the coming months. CEA’s Video Division Board

developed the definitions to more clearly define

parameters for the varying levels of DTV products

available and to make it easier for consumers to

differentiate between the types of DTV products

offered. The Board defined minimum attribute

resolution requirements that, until now, had not

existed for High Definition televisions and monitors.

Specifically, HDTV displays must have active top-tobottom

scan lines of 720 progressive, 1080 interlaced,

or higher. For the first time, consumers will be able

to understand the different technical approaches

taken by manufacturers to the display of widescreen

high definition programming, particularly on 4:3

aspect ratio HDTV displays. (Manufacturers will

disclose the number of active scan lines for a high

definition image within a 16:9 aspect ratio “letter

boxed†image area on an HDTV display).

The CEA Video Division Board also adopted two

resolutions that provide clear guidelines to manufacturers

and retailers for the advertising of DTV products

to consumers. The first resolution will allow consumers

to clearly differentiate between the new DTV sets

and analog-only televisions. The resolution states that

analog-only televisions (televisions/monitors with a

scanning frequency of 15.75 kHz) should not be

marketed or designated to consumers as having any

particular DTV capability or attributes.

In a second related resolution, the Board agreed that

the new definitions for monitors and tuners should

be used by all manufacturers and retailers to replace

general, non-industry terminology like “DTV-ready†or

“HDTV-ready.â€

This new terminology will give consumers a ‘goodbetter-

best’ choice when shopping for digital TV

products. Manufacturers created this range of definitions

so that consumers will be armed with the information

they need to make informed buying decisions across

varying budget levels.

D I G I T A L T E L E V I S I O N

P r o d u c t a n d C o m p o n e n t D e f i n i t i o n s

HIGH-DEFINITION

TELEVISION (HDTV): HDTV

refers to a complete product/system

with the following minimum

performance attributes:

Receiver—Receives ATSC terrestrial digital transmissions

and decodes all ATSC Table 3 video formats

Display Scanning Format—Has active vertical scanning

lines of 720 progressive (720p), 1080 interlaced (1080i),

or higher

Aspect Ratio—Capable of displaying a 16:9 image1

Audio—Receives and reproduces, and/or outputs Dolby

Digital audio

HIGH-DEFINITION

TELEVISION (HDTV)

MONITOR: HDTV Monitor

refers to a monitor or display

with the following minimum performance attributes:

Display Scanning Format—Has active vertical scanning

lines of 720 progressive (720p), 1080 interlaced (1080i),

or higher

Aspect Ratio—Capable of displaying a 16:9 image1

1In specifications found on product literature and in owner’s

manuals, manufacturers are required to disclose the number of

vertical scanning lines in the 16:9 viewable area, which must be

540p, 810i or higher to meet the definition of HDTV.

HIGH DEFINITION

TELEVISION (HDTV) TUNER:

HDTV Tuner refers to a RF

receiver with the following minimum

performance attributes:

Receiver—Receives ATSC terrestrial digital transmissions

and decodes all ATSC Table 3 video formats

Outputs—Outputs the ATSC Table 3 720p and 1080i/p

formats in the form of HD with minimum active vertical

scanning lines of 720p, 1080i, or higher. Additionally, it

may output HD formats converted to other formats. The

lower resolution ATSC Table 3 formats can be output at

lower resolution levels. Alternatively, the output can be a

digital bitstream with the full resolution of the broadcast

signal.

Audio—Receives and reproduces, and/or outputs Dolby

Digital audio

ENHANCED DEFINITION

TELEVISION (EDTV): EDTV

refers to a complete product/system

with the following minimum

performance attributes:

Receiver—Receives ATSC terrestrial digital transmissions

and decodes all ATSC Table 3 video formats

Display Scanning Format—Has active vertical scanning

lines of 480 progressive (480p) or higher

Aspect Ratio—None Specified

Audio—Receives and reproduces, and/or outputs Dolby

Digital audio

ENHANCED DEFINITION

TELEVISION (EDTV)

MONITOR: EDTV Monitor

refers to a monitor or display

with the following minimum performance attributes:

Display Scanning Format—Has active vertical scanning

lines of 480 progressive (480p) or higher

Aspect Ratio—None specified

ENHANCED DEFINITION

TELEVISION (EDTV) TUNER:

EDTV Tuner refers to a RF

receiver with the following minimum

performance attributes:

Receiver—Receives ATSC terrestrial digital transmissions

and decodes all ATSC Table 3 video formats

Outputs—Outputs the ATSC Table 3 720p and 1080i/p

and 480p formats with minimum active vertical scanning

lines of 480p. Alternatively, the output can be a digital

bitstream output capable of transporting 480p, except the

ATSC Table 3 480i format can be output at 480i.

Audio—Receives and reproduces, and/or outputs Dolby

Digital audio

STANDARD DEFINITION

TELEVISION (SDTV): SDTV

refers to a complete product/system

with the following performance

attributes:

Receiver—Receives ATSC terrestrial digital transmissions

and decodes all ATSC Table 3 video formats, and produces

a useable picture

Display Scanning Format—Has active vertical scanning

lines less than that of EDTV

Aspect Ratio—None specified

Audio—Receives and reproduces usable audio

STANDARD DEFINITION

TELEVISION (SDTV) TUNER:

SDTV Tuner refers to a RF

receiver with the following minimum

performance attributes:

Receiver—Receives ATSC terrestrial digital transmissions

and decodes all ATSC Table 3 video formats

Outputs—Outputs all ATSC table 3 formats in the form

of NTSC output

Audio—Receives and reproduces, and/or outputs Dolby

Digital audio

C E A D T V D e f i n i t i o n s
 
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