ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

5 tips for buying a LED / LCD TV

Updated on January 12, 2011

Today I will talk about main advantages of led TVs versus LCD panels. The main difference between LCD and LED TVsĀ  is the technology for backliting pixels. People call it LED TVs, but notice that LED TVs are still LCD TVs: LED refers to the backlight system used in newer LCD TVs.

Pixels on LCD screen don't produce their own light (pixels only produce their own light in old CRT screens), and that's the reason why they have to be "backlit".

New screens are called LED TVs, because these TVs use LED backlights instead of fluorescent backlights like other LCD TVs.

Source

There are two types of LED backlighting: Edge Lighting and Full-Array (also called Full LED).

In Edge Lighting method, LED backlights are placed along the edges of the screen. Then, the light is dispersed all across the screen. By placing LEDs on the edge of the screen this LED/LCD TVs can be designed very thin. However, black levels are not so deep and the corners and edge areas are usually brighter than the area located in the center of the panel.

Edge LED
Edge LED | Source

When Full-Array backlighting system is used, several LEDs are placed behind the screen surface (as happen with fluorescent ligths in traditional LCD TVs). Of course the panel can't be so thiner but as an advantage they can use "local dimming". This means that each LED or group of LEDs can be turned on and off independently within certain areas of the screen, these provides more control of the brightness and darkness for each area.

Local dimming
Local dimming | Source

There is a lot of confusion between these new technologies: LCD, LED, Edge LED, Full-Array, "local dimming", ... However the main facts are yet exposed in this hub. The main thing you should consider is: what is more important to you, a nice design or superior image quality? If you like nice designs, thin panels and TVs then Edge Led is the answer. But, if image quality is the most important thing to you then a Full-Array LED TV with "local dimming" is your best friend.

LEDs are the new technology for backliting a LCD panel improving these screens performance in black levels pushing it to Plasma TV quality but with less power consumption or providing thiner panel designs.

Comparing a LCD TV with led backlighting versus standard LCD TVs using fluorescent backlit system:

Since LEDs are designed differently than standard fluorescent backlight systems, this means that the new LED backlit LCD sets offer the following differences with standard LCD sets:

  • LED uses lower power consumption.
  • LEDs don't use Mercury.
  • Well balanced color saturation.
  • LED TVs using Full Array blacklight, have better black levels than traditional LCD televisions, and even Edge-lit LED.
  • LED TVs using Edge backlight method can be much thinner than standard LCD televisions, and even Full Array LED.

Comments

    0 of 8192 characters used
    Post Comment

    No comments yet.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)