Every once in a while, you trip over a win-win idea so simple, intuitive and novel, it just demands a second look – maybe even some evangelical sharing. I experienced just such an idea earlier this year while watching TV at a friend’s house. He’s the earliest high-tech adopter I know, so it’s always interesting to see what he’s experimenting with when I visit. On this particular occasion, I was marvelling at how good his big-screen HDTV looked – almost angelic, like it was surrounded by a halo of soft, warm light … and that’s when it hit me [insert record scratch sound effect here]. His big-screen TV did actually have a halo of soft, warm light surrounding it, emanating from somewhere behind the TV. Wow, what a subtle, pleasant visual effect. And as I was soon to discover, also a great way to help reduce eye strain.
Here’s the approach I used to add the same great indirect lighting behind my 52″ LCD TV. You can decide for yourself whether this win-win idea is worth a second look for your own home theatre system. For esthetics alone, this idea was well worth the price of admission for me.
Improve esthetics and create some drama by adding ambient, indirect lighting behind your HDTV
I’ve always been a big fan of soft, warm incandescent (wire-filament generated) lighting. I find compact fluorescent lights and LED lights cold and harsh by comparison and tougher on the eyes. The same goes for indirect lighting: I prefer softer indirect light sources that eliminate all light glare to help reduce eye irritation. Accordingly, for my TV, I placed 3, 12-foot sections of incandescent Rope Light behind the TV to create a soft, warm indirect light source.
You can find this kind of Rope Light at most big-box retailers and garden-supply stores. I bought the Noma clear indoor-outdoor Rope Light from Canadian Tire, which is available in 12 and 30-foot lengths, can be easily connected together and is semi-flexible (ie., bends easily but not 90 degrees). These lights also come with plastic pull-ties, which makes it easy to attach the Rope Lights to the back of your TV: just bend the tip of the pull-tie twice to create a fish-hooked shape, then slip it through the ventilation slots in the back of your TV and pull tight around the Rope Light. The number of Rope Light sections you choose to attach will depend on the amount of ambient light you want to create and the amount/position of the ventilation slots on the back of your TV. In my case, I could only easily attach 2, 12-foot sections of Rope Light to the back of my TV, so I added a 3rd, 12-foot section by hanging it over 2 shelf brackets I attached to the wall behind my TV (much the way you’d hang a garden hose in your garage). Just make sure you put all the lights in positions where you can’t see them directly from any TV viewing location, in order to eliminate light glare and minimize eye strain.
Reduce eye strain by creating a comfortable contrast between foreground TV and background room lighting
Eye strain is a common problem for people who spend countless hours in front of computer and TV screens. Eye strain is caused by a number of factors, including the following:
- too little or too much contrast (ie., difference in brightness) between the foreground TV and the background room lighting
- presence of bright colours, high-contrast colours or an excessively busy foreground/background
- TV contrast or brightness levels set too high or too low
- excessively bright room lighting from harsh interior lights (eg., overhead fluorescents) or outdoor sunlight coming through a window
- glare on the TV screen caused by lights or reflections
- improper viewing distances
- focussing intently for too long, without adequate breaks and blinking (eg., playing a video game)
- uncorrected vision problems
- a combination of these factors
One easy way to help reduce eye strain when watching TV or playing video games is to try to find a comfortable, pleasant contrast between the brightness of your big-screen TV in the foreground and the brightness of the general room lighting in the background. Too much contrast (eg., a bright TV screen in a dark room) will irritate your eyes, as the glare of the bright TV screen makes it hard to focus comfortably for long periods of time. On the other hand, too little contrast (eg., a bright TV screen in an even brighter room or a dark TV screen against a dark background) can also be hard on your eyes, as they strain to find what they’re looking for. Try to aim for a darker room background than your TV foreground – maybe half as bright as the TV screen. Then experiment from there by adding or subtracting lights until you find a contrast level that suits your own personal tastes. Experimenting with the addition of indirect lighting behind your HDTV can help ease eye strain and bring a little more theater to your home theater. Now that’s what I call a win-win idea.
How to backlight your Plasma or LCD TV using LED TV Backlight Kit, SatelliteSoftCom.com
Computer Vision Syndrome, American Optometric Association, aoa.org
Computer Eye Strain: 10 Steps for Relief, Gary Heiting & Larry K. Wan, AllAboutVision.com
Causes of Eye Strain, Chris Adams, about.com
How to Reduce Contrast to Reduce Eye Strain, Chris Adams, about.com
Video Games Can Cause More Than Virtual Eyestrain, Minnesota Optometric Association, MedicalNewsToday.com