Question about Computers & Internet
1) With a laptop Robert, or all computer hardware in the world?
2) Since we are in the Laptop PC category, I'll assume a laptop.
We're getting closer
3) What is the laptop manufacturer name, and model number?
Model number is on Bottom of laptop.
4) What is the problem?
Post back in a -> Comment.
While I wait;
A) An LCD screen does not produce light. it needs an additional light source.
A Backlight is the additional light source.
A Backlight can be a CCFL, (Or more than one), or a series of LED's. (Light Emitting Diode)
A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluroescent lighting used in homes, and businesses; but on a MUCH smaller scale.
Average thickness is 2mm. That is a little more than 1/16th of an Inch, or about the width of this capital letter -> O <- .......
Average length is almost as long, as the LCD screen is in height.
View the last 8 photos,
B) A screen Inverter is used to convert the power (Electricity), from the laptop; for the LCD screen, and Backlight.
A screen Inverter IS used for CCFL backlighting. LED backlighting MAY, or MAY NOT use a screen Inverter.
General rule of thumb is LED backlighting DOES NOT. (First design systems used an Inverter on SOME laptops. Later designs do not seem to)
90 PERCENT of the time the fault can be attributed to a bad screen Inverter.
Average example of a screen Inverter,
(The plastic frame in front of the LCD screen, is the Display Bezel. Different manufacturers/different names. The screen Inverter is mounted at the bottom of the Screen Frame, and behind the Display Bezel.
The LCD screen is an assembly. It is composed of layers, and the layers are held in the factory set alignment, by a metal Screen Frame. Resembles a picture frame.
Posted on Apr 21, 2013
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Posted on Jan 02, 2017
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