Why Are Plasma TVs Heavier Than LCDs?

When selecting large-screen, flat-panel TVs, many consumers narrow their choices down to LCDs and plasmas. Both types offer high-definition images and 3D capabilities, and the prices are comparable in today’s market. One of the major differences between the two technologies is the overall weight of the television. Plasma TVs tend to be heavier than similarly sized LCD TVs due to the technology and construction of the device.

Differing Technologies


LCD TVs feature liquid crystals that are pressed between two plates. A varying electrical charge passes through the crystals to produce images on the screen. Plasma TVs rely on a series of gas plasma cells that are electrically charged to create a picture. There is a vacuum within the plasma TV that applies force to the screen. Due to this applied force, the glass must be thicker in order to withstand the pressure. The cabinet of a plasma TV also adds weight because it needs to be strong enough to support the thicker glass.

TV Construction


The materials used to produce high-definition TVs also affect the overall weight of the device. LCD models feature plastic screens whereas plasma TVs employ glass screens to support the internal components. The glass material adds significantly more weight to the TV.

TV Thickness


Due to the technologies, flat-panel screens have limits in terms of width. Plasma TVs can only be as thin as three inches while LCD screens can get down to two inches. Some LED LCD models are close to one inch in thickness. Simply based on size ratios, plasma TVs are heavier due to the thicker bulk.

Mounting and Installation


Depending on where the user wants to install the television, the weight may or may not be a factor. When setting a plasma TV on a stand, the weight is negligible. Users may face problems when mounting heavier models. Manufacturers recommend getting assistance from another person when wall-mounting a plasma TV due to the weight. It is also a good idea to use reinforced brackets to support the device. Depending on how the consumer purchases the TV, shipping costs may also play a factor in the overall price.

Weight is only one difference between plasma and LCD TVs, but there are several other pros and cons. Consumers are advised to research the technologies thoroughly and look for features that appeal to them before making a final decision.

About the author