Compare and contrast CCFL vs. LED - Both are backlight solutions, What's the purpose of an inverter and how to determine if you have an inverter problem? - Flourescent and LCD backlighting require high energy. An inverter is a small circuit installed behind the LCD panel that takes DC current and inverts it to AC, providing the right kind of energy. You many have an inverter problem if the screen flickers or is dim. Also, you need to make sure the replacement inverter is made to work with the LCD backlight you have., How is the Wi-Fi antenna placed inside a laptop ? - Antenna wires wrap around the upper half of the screen. , Compare and contrast a touchscreen and digitizer. - A digitizer uses a pen-like device as input, stylus input; Used commonly on tablets and laptops. Touchscreen responds to touch.,

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