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High-definition television (HDTV)

Sharp Aquos LC32D64U 32-Inch 1080p LCD HDTV

· 32" HDTV LCD-TV with Full HD 1080p Resolution
· Two 1080p HDMI Terminals, 1 PC Input

The D64 series is the thinnest line of AQUOS LCD TVs ever built. Its narrower frame means more picture in less space. It's slim and elegant design saves space, while delivering a breathtaking picture and top-end features. Full HD 1080p resolution produces a crisp picture, and a 10,000:1 dynamic contrast ratio with 4ms response time (6ms on LC-32D64U and LC-37D64U) delivers amazingly accurate picture quality. High-efficiency backlight, high-performance speakers and built-in ATSC/QAM/NTSC tuners all hit the mark. All D64 models feature at least two HDMI inputs, a PC input, , RS-232C, component, and composite terminals. AQUOS LINK enables convenient control of your other devices using just your AQUOS TV remote. From the 32-inch Class up to a awesome 65-inch Class, the AQUOS D64 is a beautiful choice.

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High-definition television (or HDTV) is a digital television broadcasting system with higher resolution than traditional television systems (standard-definition TV, or SDTV). HDTV is digitally broadcast; the earliest implementations used analog broadcasting, but today digital television (DTV) signals are used, requiring less bandwidth due to digital video compression.
At a minimum, HDTV has twice the linear resolution of standard-definition television (SDTV), thus showing greater detail than either analog television or regular DVD. The technical standards for broadcasting HDTV also handle the 16:9 aspect ratio images without using letterboxing or anamorphic stretching, thus increasing the effective image resolution.The optimum format for a broadcast depends upon the type of videographic recording medium used and the image's characteristics. The field and frame rate should match the source and the resolution. A very high resolution source may require more bandwidth

than available in order to be transmitted without loss of fidelity. The lossy compression that is used in all digital HDTV storage and transmission systems will distort the received picture, when compared to the uncompressed source.

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Standard 35 mm photographic film used for cinema projection has higher resolution than HDTV systems, and is exposed and projected at a rate of 24 frames per second. To be shown on television in PAL-system countries, cinema film is scanned at the TV rate of 25 frames per second, causing an acceleration of 4.1 percent, which is generally considered acceptable. In NTSC-system countries, the TV scan rate of 30 frames per second would cause a perceptible acceleration if the same were attempted, and the necessary correction is performed by a technique called 3:2 pull-down: over each successive pair of film frames, one is held for three video fields (1/20 of a second) and the next is held for two video fields (1/30 of a second), giving a total time for the two frames of 1/12 of a second and thus achieving the correct average film frame rate.

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Non-cinematic HDTV video recordings intended for broadcast are typically recorded either in 720p or 1080i format as determined by the broadcaster. 720p is commonly used for Internet distribution of high-definition video, because all computer monitors operate in progressive-scan mode. 720p also imposes less strenuous storage and decoding requirements compared to both 1080i and 1080p. 1080p is usually used for Blu-ray Disc.

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32-Inch LCD & Plasma TV

Samsung LN32A450 32-Inch 720p LCD HDTV

A sleek design with hidden speakers keep Samsung's Series 4 large flatpanel HDTVs one of the best 720p HD options around. Upgrades over last year's models include a 6ms response rate that's faster than many more expensive 1080p models for smooth motion even with fast-moving sports and action movies, and a higher dynamic contrast ratio of 10,000:1 (up from 8,000:1 last year) for deep blacks and crisp lines. Please note that this description applies to Series 4 models 32 inches or larger. Models 26 inches and smaller have slightly different specifications.

Samsung enhances the clarity of select LCD HDTVs by replacing the light-diffusing plastic face of traditional LCD HDTVs with a natural black panel with a clear anti-glare shield. Reduced reflection of external light creates a new dimension in image clarity, highlighting black and darkened areas, enabling vibrant, more compelling colors and a brighter, clearer picture. Black will never again appear grayish. Black details will show in vivid black even in dark scenes.The latest version of Samsung’s breakthrough super clear panel technology makes colors appear more vibrant and blacks even deeper than ever. Enhanced films reduce glare and optimize off-angle viewing.

Sony KE32TS2 32-Inch WEGA HDTV Integrated Flat Panel Plasma TV

Sony's second-generation KE-32TS2 16:9 widescreen gas-plasma TV offers elegant WEGA styling with improved performance features over its predecessor, including 38 percent higher peak brightness (though Sony has not disclosed the actual brightness rating). The set includes everything you need to get the set up and running in minutes, from an NTSC broadcast tuner to built-in stereo speakers and even a handy pedestal for tabletop positioning.

The set's native 852 x 1024 pixel resolution (vertical x horizontal) ensures detailed images, while 1,000:1 contrast ratio means you'll see deep black and vivid, dynamic images from just about any source. Use it with a DTV set-top receiver for viewing full high-definition programming (720p, 1080i scaled for 1024 display) or with your progressive-scan DVD player for seamless, flicker-free images at 480p. Onboard Pixel by Pixel I/P (interlace to progressive) conversion reconstructs interlaced (480i) film or video scenes one pixel at a time for fluid, life-like motion along with breathtaking image detail.

With a plasma screen you get vivid colors like you've never seen before, extremely wide viewing angles (wider, even, than those of most LCD screens), and easy placement due to a plasma monitor's slim profile--the KE-32TS2 is a mere 5.25 inches deep, perfect for desk or wall mounting. Brightness tends to be extremely uniform across plasma screens, which are also impervious to the picture distortion and negative color balances that afflict CRT monitors when placed near lighting or sound systems.

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For 32-Inch TV, i think maybe you should be choose a LCD TV.
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Contrast ratio

Even in a fully switched-off state, liquid crystals allow some light to leak through the shutters. This limits their contrast ratios, to about 1000:1 on the best modern sets. This is most noticeable in darker scenes, where the limited number of available shades of grey can lead to "posterizing" effects and bands of discrete colors that become visible in shadows. For contrast, CRTs and plasma displays offer peak contrast ratios on the order of 3000:1, and some plasma sets offer ratios as high as 20,000:1. Canon's prototype 55" SED offered a 50,000:1 contrast ratio.

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A plasma display panel (PDP) (Plasma TV)

Panasonic VIERA G10 Series TC-P50G10 50-Inch 1080p Plasma HDTV


If you demand the best from your viewing experience, the 50-inch TC-P50G10 was created just for you. The new G10 Series boast cinema-quality movie reproduction, clear, smooth sports and gaming action--even Web entertainment. All made possible by Panasonic's Neo PDP technology, which delivers sharp, detailed images, deep blacks and remarkable brightness, all with lower power consumption.

Time spent with family and friends can be even more exciting when you gather around the 50-inch TC-P50G10. 1080p resolution combines with a 480 Hz processor to bring you exceptional clarity and smooth, fluid motion--even during high-speed action. VIERA HDTVs offer incredible black reproduction, with a rated dynamic contrast ratio of up to 1,000,000:1, so you'll get warm, accurate skin tones, gorgeous greens, breathtaking blues and vivid reds. And now, all of your friends and family can get in on the action thanks to an extra-wide viewing angle that provides an excellent view from almost anywhere in the room.

G10 Series Plasma HDTVs meet the high standards set by the Lucasfilm THX Certified Display Program, to faithfully recreate the visual ambience intended by the original movies creators. If you love movies and demand cinema-quality images in your home, this is the HDTV for you.

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A plasma display panel (PDP) is a type of flat panel display common to large TV displays (32 inches or larger). Many tiny cells between two panels of glass hold an inert mixture of noble gases. The gas in the cells is electrically turned into a plasma which then excites phosphors to emit light. Plasma displays should not be confused with LCDs, another lightweight flatscreen display using different technology.

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Plasma is often cited as having better (i.e. darker) black levels (and higher contrast ratios), although both plasma and LCD each have their own technological challenges. Each cell on a plasma display has to be precharged before it is due to be illuminated (otherwise the cell would not respond quickly enough) and this precharging means the cells cannot achieve a true black. Some manufacturers have worked hard to reduce the precharge and the associated background glow, to the point where black levels on modern plasmas are starting to rival CRT. With LCD technology, black pixels are generated by a light polarization method; many panels are unable to completely block the underlying backlight. However, more recent LCD panels (particularly those using white LED illumination) can compensate by automatically reducing the backlighting on darker scenes, though this method--analogous to the strategy of noise reduction on analog audio tape--obviously cannot be used in high-contrast scenes, leaving some light showing from black parts of an image with bright parts, such as (at the extreme) a solid black screen with one fine intense bright line.

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Liquid-crystal display televisions (LCD TV)

Samsung LN52A650 52-Inch 1080p 120 Hz LCD HDTV with Red Touch of Color


DNIe™ The Samsung Digital Natural Image engine. This exclusive Samsung technology dramatically improves the picture by enhancing the contrast, detail, white balance and reduces.

TruSurround is a patented SRS technology that solves the problem of playing 5.1 multichannel content over two speakers. TruSurround delivers a compelling, virtual surround sound experience through any two-speaker playback system, including internal television speakers and headphones. It is fully compatible with all multichannel formats up to 5.1 channels. High-quality virtual surround sound can be experienced with just the two hidden, downward-firing side-mounted 2.2-channel dome speakers built into the TV.

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(You should be use 5.1 surround sound set; 6 speakers, DVD player, 5.1 Integrate Amp.. All set it’s a cheap price when compare with your 52-inch LCD TV.)

Samsung adds a Touch of Color to a blazing-fast 4ms response time and rich connectivity features to redefine the role HDTVs play in the home with its forward-looking Series 6 (A650) and Series 7 (A750) LCD HDTVs. Utilizing the award-winning technologies found in all Samsung HDTVs, Series 6 and 7 HDTVs deliver unparalleled picture quality and enhanced connectivity and networking capabilities that create a true entertainment hub for any home. Series 7 takes networking and multimedia management to a whole new level. Consumers can easily enjoy MPEG and JPEG files stored on external devices by connecting through a side-mounted USB 2.0, turning their LCD into a full-scale home viewing gallery, or connect their MP3 players for a dynamic audio experience.

Liquid-crystal display televisions (LCD TV)

are color television sets that use LCD technology to produce images. LCD televisions are thinner and lighter than CRTs of similar display size, and are available in much larger sizes as well. This combination of features made LCDs more practical than CRTs for many roles, and as manufacturing costs fell their eventual dominance of the television market was all but guaranteed.

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Early LCD sets were widely derided for their poor overall image quality, most notably the ghosting on fast-moving images, poor contrast ratio, and muddy colors. In spite of many predictions that other technologies would always beat LCDs, massive investment in LCD production and manufacturing has addressed many of these concerns.

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