Why do lightbulbs go out, but not the lights that illuminate screens on TVs and phones?
it is, DLP tvs for example used a honest bulb (though very bright and powerful), and it had a life of a few years. LCD screens use edge lighting, most are LEDs these days (all cell phones), but they used to use compact florescent lights (rarely still do). both have absurdly long lifespans, longer…
The Short Answer
it is, DLP tvs for example used a honest bulb (though very bright and powerful), and it had a life of a few years. LCD screens use edge lighting, most are LEDs these days (all cell phones), but they used to use compact florescent lights (rarely still do). both have absurdly long lifespans, longer than the devices they are in. but its possible for the backlight to fail. the newest phones (and some TVs) are OLED, which means the screen itself are itsy bitsy LEDs that generate the light themselves. again, super long life.
Analysis
Key Concepts: Used, life, leds
This explanation focuses on used, life, leds and spans 94 words across 6 sentences. At 25% above the average Technology explanation (75 words), this is one of the more thorough answers in this category, reflecting the complexity of the underlying question.
What This Answer Covers
The explanation opens with: “it is, DLP tvs for example used a honest bulb (though very bright and powerful), and it had a life of a few years.” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 6 connected points.
How This Compares in Technology
Ranked #157 of 500 Technology questions by answer depth (top 32%). This falls in the detailed tier — above average depth. The explanation goes beyond surface-level but keeps things accessible.
Frequently Asked Questions
Is there a simple explanation for why lightbulbs go out, but not the lights that illuminate screens on tvs and phones?
it is, DLP tvs for example used a honest bulb (though very bright and powerful), and it had a life of a few years. LCD screens use edge lighting, most are LEDs these days (all cell phones), but they used to use compact florescent lights (rarely…
How detailed is this explanation compared to similar Technology questions?
This is an above-average answer at 94 words, ranked #157 of 500 Technology questions by depth. The key concepts covered are used, life, leds.
What approach does this answer take to explain lightbulbs go out, but not the lights that illuminate screen?
The explanation uses concrete examples and contrasting perspectives across 94 words. It is categorized under Technology and addresses the question through 2 analytical lenses.