Write a short note on working of LED display

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written 7.1 years ago by

teamques10 ★ 69k

LED stands for light-emitting diodes which are exactly what a LED TV uses to illuminate the images displayed on the screen.
On a LED screen, however, the light-emitting diodes can be placed either behind the screen or around its edges.
LED TVs provide a better picture for two basic reasons. First, LED TVs work with a colour wheel or distinct RGB-coloured lights (red, green and blue) to produce more realistic and sharper colours.
Second, light emitting diodes can be dimmed. The dimming capability on the back lighting in a LED TV allows the picture to display with a truer black by darkening the lights and blocking more light from passing through the panel.
This capability is not present on edge-lit LED TVs; however, edge-lit LED TVs can display a truer white than the fluorescent LED TVs.

Construction of LED Display

With Edge Lighting, LED TVs produce light from a series of diodes arranged outside the edge of the screen.
On the other hand, backlit LEDs (better known as Full Array Lighting) has the light-producing diodes behind the screen.
Full Array Lighting offers more control over the brightness of the image as these diodes can be independently controlled.

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