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Laptop Monitor

When you think about a laptop monitor, you may think that they share the same characteristics of a traditional tube monitor. However, the differences in a laptop monitor and other computer monitors are vast.

ScreenTek specializes in laptop LCD screens, which many refer to as a laptop monitors. Laptop screens use LCD technology, which basically consist of a backlight, TFT array, color filter and a polarizer. Laptop monitors don't have glass exposed on the most outer layer. Laptop screens are actually covered by a polarizer, which can be scratched or damaged, unlike the glass tube monitors that many desktop computers once used.

If the LCD screen cracks, you may see a 'bubble' or an image that looks like liquid is in your screen. This is the liquid crystal, and your screen has to be replaced. ScreenTek sells laptop monitors for a fraction of what the laptop manufacturer may charge you.

The backlight of a laptop monitor creates the light needed to display the image on the screen. The light shines through a diffuser, which creates a white light behind the LCD screen. The light then travels through a vertical polarizer so that the light isn't scattered.

Once the light is traveling in a uniform direction, it is passed through the TFT array, a thin sheet of glass with three transistors on it for each pixel. The TFT dictates how much light gets through, which creates different colors depending on how much light is allowed through to the subpixels.

Although liquid crystals are naturally in a twisted shape, the TFT array applies a voltage which causes the liquid crystals to line up straight. This keeps the light traveling in a vertical manner so the display is correct on the laptop monitor.

The final steps that occur inside the laptop monitor are the light passing through the color filter and a horizontal polarizer. The color filter is printed on a piece of glass to tint it the correct color before it hits the horizontal polarizer. The light is finally emitted to the laptop monitor to display whatever the user is viewing.

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