oio wrote:You're joking right? LCDs currently sold in this price range have fluorescent backlights which can and do fai l. Same technology as laptops. Some laptops are switching to LED backlights which should last much longer. I really doubt an LCD display of this vintage uses LED backlights. Count on it being fluorescent backlit, and expect about 5 years life out of it. It may dim over time, and eventually burn out.
Old post, I know. I said nothing to contradict that. I said that LCD backlights aren't *expected* to fail as you would expect with a projection bulb. I know full well that they can and do fail.
In laptops, the cause of a failed backlight is usually the wires that carry power through the hinge developing a short. Failed power inverters are also a common way for an LCD backlight to fail. The luminescent panel is almost never the point of failure. Both current LCD backlighting technologies are far more reliable than a projection set, which is EXPECTED to fail (the bulbs are practically "consumables"). It remains to be seen if LED arrays will last longer than the tech it replaces. Typical LED components DO fail, so having an array of hundreds will multiply the likelihood that you'll encounter individual LEDs that die.