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HDTV LCD TV

Find out about HDTV LCD TVs.

LCD TVs are much thinner and lighter than rear projection tvs. [©Jupiter Images, 2010]
©Jupiter Images, 2010
LCD TVs are much thinner and lighter than rear projection tvs.

HDTV LCD TV

To best define HDTV LCD TV, it is probably best to break down the acronym components of this technological term.

DTV stands for Digital Television, which includes digital cable and digital satellite television broadcast transmissions. It is important to note, however, that some examples of DTV programming that are not in HDTV programming format.

HDTV stands for High Definition Television. According to DTV.gov, a U.S. Federal Communications Commission-sponsored Web site, HDTV is the highest quality digital television connection. HDTV transmissions also include the ability to transmit digital surround sound.

LCD stands for Liquid Color Display, also known as Flat Panel TV. It is a comparatively lightweight and low energy alternative to other television display formats such as Rear Projection, Cathode Ray Tube (CRT) and Front Projector. LCDs are fixed pixel displays, meaning that LCD screen pictures consist of rows and columns of individual picture elements (pixels) that turn on and off to produce the necessary patterns of light for picture transmission.

There are several quality levels of high-definition television broadcast resolutions. Also known as True HD, 1080p (1920 X 1080 pixels progressively scanned) is currently the highest level of picture resolution for HDTV LCD TVs. 1080i is an interlaced scan that transmits odd-numbered lines of video in succession on the LCD screen picture and then fills in the remaining number of lines.

Note that the June 2009 DTV Transmission was a change from analog broadcast formats to digital broadcasting. It was not a change from analog broadcasting to high-definition (HD) broadcasting. As stated above, DTV includes both HD and SD (standard definition) television formats for broadcasting.

Optional HDTV LCD TV accessories include:

  • Connectivity with a Home Theatre Receiver that can decode Dolby True HD and DTS Master Audio sound tracks from Blu-Ray Discs
  • Connectivity with a Blu-Ray Disc player at an optimum 1080p resolution for playing PlayStation video games as well as DVDs
  • Dish Network satellite TV subscription service connectivity offering pay-per-view movies in 1080p resolution
  • Samsungs wall mount device with a controller that can tilt and swivel the TV via on-screen controls

HDTV LCD TV Buying Tips

Backlight control is a feature of some LCD screens. Controlling a screens backlight helps reduce viewer eyestrain and provides greater control over the HDTVs energy consumption.

LCD displays come in matte or glossy finishes. Matte finishes may make screen blacks appear inky, while glossy finishes allow for sharper picture resolution.

The rule of thumb for HDTV LCD TV viewing is that the distance from the screen should be equal to twice the screen size.

PCMag recommends that HDTV LCD TV buyers consider the picture's contrast resolution. This is the measurement of light output when the screen is displaying white images compared to the measurement of light output when the screen is displaying black images. The deepest darkest transmission of black levels is most desirable in an HDTV.

An LCD display typically produces twice the light output of a plasma display. This can be an advantage for daytime viewing.

HDTVs widescreen picture format (a 16:9 aspect ratio) provides the highest picture resolution when compared to a traditional picture format (a 4:3 aspect ratio).

PC World warns consumers that LCD displays can be subject to image blurring during the display of fast motion action scenes in TV programming. 120-Hz is an LCD technology feature that minimizes the amount of image blurring.

HDTV LCD TV Glossary

Progressive Scanning is where every line of the LCD screen picture is transmitted in image refresh rates.

Image Refresh Rate refers to the number of times per second that a new image is displayed on the screen.

VGA (Video Graphics Array) is a high-quality analog video input used mostly for computer display transmission.

DVI (Digital Video Interface) is a high quality video input intended for computer displays that may also be compatible with some HDMI television outputs.

Component Video is the only type of analog video that can transmit high-definition signals.

HDMI (High Definition Multimedia Interface) is an HDTV connection output port that is used to connect a variety of digital devices, including DVD players, stereos and DVRs (Digital Video Recorders), to the television. For some consumers, the more HDMI ports, the better. HDMI switches are available that will increase an HDTVs number of HDMI ports. It is important to note that not all HDMI ports are equal in quality, and some HDMI connections may not be compatible with a particular model of HDTV.

HDCP (High Definition Content Protection) is a content piracy prevention technology used with HDTV connectors like HDMI.

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