LG 55LH90

55LH90 55" (55.0" diagonal) Full HD 1080p Full LED Backlighting 240Hz HD LCD TV

Quick Specs:
Brand: LG
SKU: 55LH90
UPC: 93441250792491
Width: 54.1"
Height: 38"
Depth: "
Energy Star: Yes
Technical Details
Screen Size: 50"
Aspect Ratio: 16:9
Brightness: 500 cd/m2
Contrast Ratio: 2000000:1
Response Time: 2.4ms
Viewing Angle: 178° / 178°
Resolution: 1920 x 1080
HD: 1080p

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LG Products

LG 55LH90

LG 55LH90 55" (55.0" diagonal) Full HD 1080p Full LED Backlighting 240Hz HD LCD TV
MSRP: $3,199.00
Was: $2,760.00
Final Price: See Price in Cart
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SKU: 55LH90
Condition: Brand New Factory Sealed With 1 Year USA Warranty
Shipping Methods:
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Unlike other LED HDTVs that use "edge" lighting, LG's 55LH90 uses a full array of LED backlights which employ local dimming techniques for more precise picture control, resulting in deeper blacks, a wider color gamut and smoother motion, for a more natural picture.

LG 55LH90 Description:

Unlike other LED HDTVs that use "edge" lighting, LG's 55LH90 uses a full array of LED backlights which employ local dimming techniques for more precise picture control, resulting in deeper blacks, a wider color gamut and smoother motion, for a more natural picture.

LG 55LH90 Features:

  • Built-in HDTV tuner
    Add HD-capable antenna to receive over-the-air high-definition broadcasts, where available. Optional set-top box required for high-definition cable or satellite programming.
  • 54-3/5" screen measured diagonally from corner to corner
    With LED backlight and dimming brings your favorite movies to life.
  • 1080p display
    Provides the highest quality progressive-scan picture possible from a high-definition source.
  • 16:9 widescreen aspect ratio
    With 6 aspect ratio correction modes, 8 picture modes and 3 A/V modes delivers a cinema-style entertainment experience.
  • 24p Real Cinema mode
    With 3:2 pulldown for accurate and realistic reproduction of film sources.
  • XD Image Processing Engine
    Adjust brightness, contrast, color, sharpness and white balance to save on energy consumption and to optimize the picture for a variety of light conditions.
  • Ultrafast 2.4 ms response time
    With TruMotion 240Hz technology creates smooth transitions between fast action scenes for fluid movement.
  • Wide 178 vertical and horizontal viewing angles
    With 20 swivel stand for comfortable viewing from almost any seat in the house.
  • Other advanced picture technologies
    Include 2,000,000:1 dynamic contrast ratio, 500 cd/m brightness, enhanced noise reduction, 3 color temperature modes, ISFccc-ready, xvYCC and Picture Wizard for ultimate viewing.
  • 2-way 20W invisible speaker system
    With Dolby Digital sound decoder and SRS TruSurround XT delivers a virtual surround sound experience. Bass, treble and balance controls and 5 selectable sound modes allow you to create a customized sound.
  • Clear Voice II technology
    Automatically enhances the sound of the human voice to provide clear dialogue when the background sound swells.
  • Auto volume leveler II
    Prevents volume fluctuations during commercials, eliminating the need to readjust the settings.
  • Ultraslim LCD
    Measures 4-1/5" deep and many be mounted on a wall (with optional mounting kit, not included). VESA 400mm x 400mm compatible.
  • PC video input
    Lets you connect your computer to experience high-resolution images.
  • 4 HDMI inputs
    Provide an uncompressed all-digital audio/video link for the highest quality connection and they support copy-protected HD broadcast content.
  • USB 2.0 port
    For quick connection of a digital camera or other USB device.
  • Inputs
    Include 4 HDMI (1 side, 3 rear), 2 HD component video (rear), 1 component A/V (rear), 2 composite video (1 side, 1 rear), 1 RF antenna (rear) and 1 PC (rear).
  • Outputs
    Include 1 optical digital audio.
  • V-Chip parental controls
    Give you the option of blocking undesirable material that you don't want your kids to see.
  • ENERGY STAR qualified
    Designed to use less energy and meets strict energy efficiency guidelines set by the Environmental Protection Agency and U.S. Department of Energy.
  • Additional features
    Include LG SimpLink functionality, intelligent sensor mode, input labeling, quadrilingual (English, French, Spanish and Korean) on-screen display, channel add/delete, favorite channel, clock and sleep timer.

    LG 55LH90 Specifications:

    Screen Size (Class)55" Class (54.6" diagonal)
    LED Backlight with Local DimmingYes
    Native Display Resolution1920 x 1080p
    Brightness (cd/m2)500
    Dynamic Contrast Ratio2,000,000:1
    Viewing Angle178 / 178
    Response Time2.4ms
    TruMotion 240HzYes
    True Viewing AngleYes
    ATSC/NTSC/Clear QAMYes
    XD EngineYes
    Aspect Ratio16:9
    Aspect Ratio Correction6 Modes
    Just Scan (1:1 Pixel Matching)HDMI: 1080p/1080i/720p
    Component: 1080p/1080i/720p
    RF: 1080i/720p
    Enhanced Noise ReductionYes (3D & MPEG) (Video Noise Filter)
    Color Temperature Control3 Modes
    24p Real CinemaYes (5:5)
    3:2 PulldownYes
    Picture ResetYes
    AV Mode II (Picture & Sound)3 Modes
    Picture Mode8 Modes
    ISFccc ReadyYes
    Intelligent Sensor ModeYes
    DTV Signal Strength IndicatorYes
    Mono/Stereo/Dual (MTS/SAP)Yes
    Audio Output Power (Watts - THD 10%)10W + 10W
    Invisible Speaker System Details2 Way 4 Speaker
    Dolby Digital 5.1 DecoderYes
    Surround System TypeSRS TruSurround XT
    Bass/Treble/Balance ControlsYes
    Clear Voice IIYes
    Auto Volume Leveler IIYes
    Sound Mode5 Modes
    Picture WizardYes
    Backlight ControlYes
    Smart Energy SavingYes
    Mechanical Power OffYes
    1080p Source InputHDMI: 60p/30p/24p
    Component: 60p/30p/24p
    RGB: 60p
    A/V Input NavigationYes
    Input LabelingYes
    Quick View (Previous Channel)Yes
    Quick Setup GuideYes
    Parental Control w/V-ChipYes
    Key LockYes
    Closed CaptionYes
    Alvin UIYes
    Auto Tuning/ProgrammingYes
    Channel Add/DeleteYes
    Channel LabelingYes
    Favorite Channel ProgrammingYes
    Auto/Manual ClockYes
    On/Off TimerYes
    Sleep TimerYes
    L/R Audio/Component Video In1
    HDMI/HDCP Input1 (V.1.3 with Deep Color)
    USB 2.0 (JPEG/MP3/DivX)1
    RF In (Antenna/Cable)1
    L/R Audio/Component Video In1
    HD Component Video In2 (Y,Pb,Pr) + L/R Audio
    Digital Audio Out (Optical)1
    HDMI/HDCP Input3 (V.1.3 with Deep Color)
    RGB In (D-Sub 15pin) - PC1
    PC Audio Input1
    RS-232c In (Control/Service)1
    Swivel Stand (degrees)20 / 20
    VESA Compliant (WxH)400mm x 400mm
    Remote Control TypeUnified
    Voltage, Hz100V - 240V, 50/60 Hz
    Stand-by Mode>1W
    ENERGY STAR 3.0 CompliantYes
    TV without stand (WxHxD)54.1" x 35.1" x 4.2"
    TV with stand (WxHxD)54.1" x 38.0" x 17.9"
    TV without stand weight78.3 lbs
    TV with stand weight86.4 lbs
    Warranty1 year parts & labor limited warranty

  • Box Contents

    • LG 55" Class / 1080p / 240Hz / LCD-LED HDTV
    • Tabletop stand
    • Remote
    • Owner's manual


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    Types of Televisions:

    In Plasma technology, the display itself consists of cells. Within each cell two glass panels are separated by a narrow gap in which neon-xenon gas is injected and sealed in plasma form. The gas is electrically charged at specific intervals when the Plasma set is in use. The charged gas then strikes red, green, and blue phosphors, thus creating a television image. Each group of red, green, and blue phosphors is called a pixel.

    Some Advantages of Plasma Televisions are:
  • Larger Screen Sizes Available
  • Better Contrast Ratio, so Blacks are deeper
  • Better Color Saturation
  • Little to no lag in Fast Moving Images

  • Some Disadvantages of Plasma Televisions are:
  • Susceptible to Burn-Ins(Image is “burnt” onto the screen when left on the screen too long)
  • Generates a lot of heat
  • Does not perform well at high altitudes

  • LCD
    LCD stands for liquid crystal display. These types of displays are made of two layers of transparent material, which are polarized, and are "glued" together. One of the layers is coated with a special polymer that holds the individual liquid crystals. Current is then passed through individual crystals, which allow the crystals to pass or block light to create images. LCD crystals do not produce their own light, so an external light source, such as florescent bulb is needed for the image created by the LCD to become visible to the viewer.

    Some Advantages of LCD Televisions are:
  • Low energy consumption
  • Reduced Glare
  • No "burn-in" effect
  • Cool running temperatures
  • No high altitude issues
  • Greater Brightness
  • Lighter in weight

  • Some Disadvantages of LCD Televisions are:

  • Low contrast ratio
  • Fast Moving Images sometimes lag
  • Individual Pixels can burn out and cannot be replaced
  • Smaller Viewing Angle (although not significant difference)

    DLP (Digital Light Processing) technology utilizes a small Digital Micromirror Device (DMD) to tilt more than 1.3 million micromirrors-each of them less than the width of a human hair-toward (ON) or away from (OFF) the light source inside the DLP. This process creates light or dark pixels on the face of the projection screen. The light then filters to a color wheel, which rotates 120 times per second, producing the correct hue. Each mirror can turn on or off several thousands of times per second resulting in a technology that can reproduce up to 1024 shades of gray.

    Some Advantages of DLP Televisions are:
  • Little to no affection by ambient light
  • Better Contrast Ratio, so Blacks are deeper
  • High refresh rate
  • No lagging images or burn-ins
  • Not affected by altitudes
  • Tuner built-in in most models
  • The only thing that can burn out is the bulb, which can be replaced, so you could use this TV virtually forever
  • Many connections available - Can also be used as a monitor

  • Some Disadvantages of DLP Televisions are:
  • Must be viewed at eye level for the best picture
  • While a bulb will only cost around $200, a professional will need to install it, incurring an additional cost.
  • They are heavy and cannot easily be moved.

  • Direct View(CRT)
    Direct-view TVs, also known as the traditional tube television, consist of a single cathode ray tube (CRT) and electron beam that excites and illuminates phosphors on the inside surface of the TV screen.

    Some Advantages of CRT Televisions are:
  • Low in cost
  • Best black level, contrast, shadow detail and color performance of any video technology out there
  • Not affected by ambient light
  • Can be viewed from any angle
  • Very Long Life Expectancy

  • Some Disadvantages of CRT Televisions are:
  • Size and Weight of Television make it very heavy
  • Limited screen size - 38 inches is about the max for CRT TVs
  • Uses old technology

  • Choosing the Best TV Size:

    Where you are putting your television and what you are using it for will determine the perfect TV size for your room.

    Living (or Family) Room
    For living rooms and other spaces with high TV use, 37 inch and larger are the most popular choices. In large rooms, the largest size possible is usually best.

    For bedrooms, offices and other medium-sized spaces, a tv that is from 26 to 37 inches is your best bet.

    Kitchens & Smaller Rooms
    For kitchens and smaller rooms where you will be close to the TV, a 15 to 19 inch screen is best suited.

    Refer to the below chart for the mimimum distance you should be from the television.

    TV Viewing Distance Chart
    Diagonal Size Minimum Viewing Distance Maximum Viewing Distance
    26" 3 ft. 6 ft.
    32" 3.5 ft. 7 ft.
    37" 4 ft. 8 ft.
    42" 5 ft. 10 ft.
    47" 6 ft. 12 ft.
    50" 6.5 ft. 13 ft.
    60" 7 ft. 15 ft.

    High Definition vs. Standard Definition

    Standard definition is analog signals with resolution of 480i (480 lines drawn onscreen in an interlaced pattern, odd lines separately from even), the format in which TV content is delivered over regular analog broadcasts and basic (non-digital) cable. On the best TVs, the picture quality can be very good or even excellent, but it doesn't compare to the best that HD can offer.

    Enhanced definition falls between standard and high definition. ED signals are digital, with resolution of 480p (480 lines scanned progressively). This is equivalent to DVD quality, which is a little better than standard definition but not as good as high definition. Some ED sets can accept HD signals, but they convert them to a lower resolution that they can display, so the picture quality won't match that of true HD. On the best EDTVs, it can be quite good.

    High definition offers the best TV viewing possible. HD is a digital-TV format that contains more and finer detail than other formats, so images can have almost lifelike clarity. The picture quality can be stunning, especially on a large, wide-screen set. In technical terms, HD images have higher definition, meaning more picture elements (lines or pixels) make up each image. Most HD broadcasts today are either 1080i (1,080 lines drawn on-screen separately in an odd/even pattern, then interlaced to form one image) or 720p (720 lines scanned in one sweep, or progressively). Another HD format, 1080p, has 1,080 lines drawn in a progressive pattern, which potentially yields the finest detail. This format isn't yet being used for TV broadcasts, but some HD DVDs that support 1080p are expected to arrive this year. TVs with 1080p native resolution have already started to appear on the market.

    The below chart explains further the difference between Standard and High Definition Signals.

    Resolution and Picture Quality Table
    Picture Quality Good Quality Better Quality Best Quality
    Standard Definition TV Standard Definition DVD Enhanced Definition TV 720p High Definition TV 1080i High Definition TV 1080p High Definition TV/Blu-Ray
    Aspect Ratio Full Screen 4:3 Full Screen 4:3/Widescreen 16:9 Widescreen 16:9 Widescreen 16:9 Widescreen 16:9 Widescreen 16:9
    Resolution 640 x 480 720 x 480 854 x 480 1280 x 720 1920 x 720 1920 x 720
    Scanning Interlaced Interlaced Progressive Progressive Interlaced Progressive

    Which Audio/Video Connection is the best?
    Connector Type Quality Signal Type Description
    HDMI Highest Digital HDMI (High-Definition Multimedia Interface) is an uncompressed, all-digital signal that combines both audio and video. This connection gives you the optimal 1080p signal and up to 7.1 channel sound.
    DVI Highest Digital DVI (Digital Video Interface) is a video connection that will deliver 1080p video signal, but it does not carry audio signals.
    Component Video Good Analog Component Video, or RGB, is an analog signal connection that splits the video into 3 separate signals, 2 for color and 1 for brightness. The maximum resolution on this connection type is 720p or 1080i.
    S-Video Decent Analog S-Video (S for Separate) is a type of component video signal because the color and brightness signals are transmitted on separate wires. S-Video is not used for high definition resolutions.
    Composite Video Average Analog Composite, or RCA, connections can be found on almost all video components. Color and brightness pass over the same cable. Although it is the most common connection found, it is also the least quality.