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Analysis of a TV LCD

I’m often asked what is a TV LCD? LCD stands for Liquid Crystal Diode and examples of tv LCD displays are all around us. From large scale displays hung from tv wall mounts to photo viewers, microwaves, digital clocks and car dashboards, LCD displays are now a integral part of our lives, and it’s hard to imagine a day spent without watching or using one.

The most common type of ‘liquid’ crystal used in LCD TVs is twisted nematic – a naturally twisted crystal that reacts to electric currents by untwisting to various extents according to the voltage being passed through it.

By pressing this crystal between parallel panes of polarized glass, it’s possible to manipulate the intensity of light that passes through it, and change the display from light states (where the crystals are fully twisted) to dark states (where the crystals are fully untwisted), and grey states in-between.

A TV LCD display such as a Samsung LCD TV then, consists of thousands of arrays of tiny crystals called ‘pixels’, that are manipulated together to form images on the screen. The process of manipulating these crystals is called ‘addressing’, where each pixel is individually turned on or off to create a image for the viewer.

The light for the TV LCD is created with an array of florescent bulbs or (more recently) LED’s (light emitting diodes) that emit light through the polarized glass behind the liquid crystal, backlighting the display. As the crystals allow all wavelengths of light to pass through, the full spectrum of colour can be harnessed and manipulated to create the images required.

To display different colours, each pixel is divided into three sub-pixels – red, green and blue – that work together to achieve the hue. With each sub-pixel able to create up to 256 colours, the use of all three sub-pixels means a single pixel can produce up to an amazing 16.8 million colours – amazing!

So why choose a TV LCD?

With each pixel on an LCD display having it’s own transistor electrode, TV LCD’s can feature smooth, wide, saturated and evenly lit images with none of the lines that older projection TV’s used to suffer from, even on a 32 inch lcd tv or larger.

With all that light and so many pixels, it’s no surprise then that flat panel TV LCD displays also tend to be significantly brighter and have higher contrast ratios than the older CRT displays. This means that a TV LCD won’t wash out in brightly lit rooms, glare under direct light, or flicker, which can cause eye strain.

TV LCD’s also support wide viewing angles of up to 160°, allowing the display to be viewed from almost anywhere in the room. They’re also significantly thinner than older projection TV’s, allowing them to be mounted wherever they’re needed using tv wall mounts.

And last but not least, the average lifespan of a tv lcd display is around 60,000 hours – that 2500 days of constant watching or almost 7 years – so find some good lcd tv deals online and get yourself one!

TV stands – alternatives to TV wall mounts?

Although TV wall mounts are fantastic ways to mount your big screen TV, some consumers may not be comfortable with drilling into walls, paying for workmen to install a wall mount or having their TV’s movement restricted to one pivot point.

Historically this would mean a piece of potentially unattractive furniture to sit the TV on, but with the rise in built in TV brackets, TV stands are becoming increasingly stylish and versatile ways to mount your TV.

TV stands

As TV’s become bigger and flatter, TV stands have seen a move in how they present and support displays. TV’s don’t just sit on top of stands – many stands now support full ‘H’ or ‘T’ shaped flat screen tv wall mounts allowing the TV to be raised, lowered, swivelled and tilted to the same extent as a wall mounted bracket.

Most stands offer a range of additional functionality over flat panel tv wall mounts, including shelving, drawers and even built in speakers and amplifiers. Most stands will feature backboards too, hiding wiring or allowing cables to be run through the pillars holding the TV bracket.

TV stands can be built from a range of materials, from relatively inexpensive plastic to wood, oak, chrome and even reinforced glass. They’re generally more expensive than their lcd TV wall mounts counterparts due to the additional materials used and unsurprisingly, spending more will generally get you a better build quality.

They are often very stylish, providing fantastic clean lines and attractive designs. They also provide a mounting solution that allows repositioning around the room should the need require.

Prices

It’s difficult to put a price on TV stands as the price will be dependant on a range of options including the quality, style and size of stand required.

Simple glass stands can be relatively inexpensive, with costs starting around $75. Of course, the larger and heavier your TV is, the larger and more capable a stand it will require. Clear glass stands for TV’s up to 50″ may cost double that or more.

Stands with pillars and mounting brackets may cost considerably more, from $250 upwards. Stands allowing the brackets to be raised, lowered, swivelled and tilted will cost even more, ranging from $350 and up.

There’s really no limit to how much you can spend on a TV stand and of course, more functionality will cost you even more. If you’re looking for a stand that includes 5-way built in speakers and an amplifier you may be working from a minimum $500 budget all the way up to $3000.

The verdict

The ‘right’ stand for you will probably be limited by your budget. You may have spent a lot on your TV already, so budget may be an issue. If that’s the case, or if you have limited room available, you may want to consider lcd or plasma TV wall mounts. They are generally less expensive and will become completely invisible behind your TV.

On the other hand, if you have a little more to spend, more space available, a need for shelves and drawers, or need to move your TV around the room regularly, you may find a TV stand works for you. As stands will be prominently displayed in your room, consider the best style for your room. If you live in a rustic cottage, consider a wooden stand. If you live in an ultra modern flat, why not go all out with a sleek black glass stand and really make a statement.

The final decision is up to you, but one thing can be assured; your new TV will look better with a professional stand or mount and prices will vary, so shop around first!

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Ceiling mount – the next step in tv wall mounts

Ceiling mounts are an increasing popular choice for businesses, allowing TV’s to be hung from ceilings to maximise space and cater for a wide range of applications.

From sports bars to catalogue stores to airport terminals, a ceiling mount can provide a dynamic channel for displaying important information for customers and keeping that information out of arms reach, including appointment information in waiting lounges, queue updates in busy retail stores and train times at railway stations.

Introducing the ceiling mount

As the name suggests, ceiling mounts are hung from the ceiling, so need to be very tough and malleable to support their own and the tv’s weight. They tend to be made from aluminium metal, a more expensive metal than that used for standard tv wall mounts but known for its strength and rigidity.

Being hung from the ceiling, their range of movement is much more flexible than flat screen tv wall mounts, allowing raising and lowering from the ceiling, tilting and full 360 degree rotation. This allows a much wider range of viewing angles and room layout options – so if you’re the type of person who likes to move their furniture around a lot, a ceiling mount could be thing for you.

Types of ceiling mount

The bracket used on a ceiling mount tends to follow those used for flat planel tv wall mounts – rectangular for widescreens tv’s and square for square tv’s.

While most ceiling mounts are made for single displays, some can hold two or more tv’s at once and even provide an additional fixing for a projector ceiling mount, allowing a whole array of displays to be hung from a single point on the ceiling. Of course, the more tv’s you have, the more they will weigh and the more demand they will put on your ceiling, so as with any plasma or lcd tv wall mounts, you should always consider the size and weight of your displays and the strength of the surface you will be attaching them to before choosing your mounting solution.

Mounting a ceiling bracket

Most ceiling mounts will come with a kit to help you install the ceiling mount safely to your ceiling. Once installed, the ceiling mount will need locking in place to prevent it from spinning on its own. These locks will need to be undone to adjust the position of the tv, but some ceiling mounts are equipped with accessories to allow for minor adjustments without the need to unlock them entirely.

Price

Unsurprisingly, all this added capability comes at a cost. Ceiling mounts are generally more expensive than their tv wall mounts counterparts, but if you can afford them, it’s worth it.

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