LED backlitLCD

An edge-lit LED panel is made of a row of LEDs attached to the frame (or circumference) of the panel, shining horizontally into a light-guide plate (LGP). The LGP directs the light downwards, through a diffuser into the space below. Edge-lit panels are sometimes also known as side-lit panels.

In an effort to reduce the cost of edge-lit panels some manufacturers introduced cheaper materials and assembly processes that impacted on their quality. Principally, this involved the LGP. Polystyrene (PS) LGPs are now used by some manufacturers, but if UV stabilisers are not added these will yellow with age and the panel will become dull in the centre while the periphery remains bright. Also, PS has a lower light transmission % than PMMA.

Because they have no LGP it is possible to make back-lit panels relatively cheaply. This leads some manufacturers to promote back-lit panels as a low-cost option.

LED backlitdisplay vs IPS

30 position potentiometer for repeatable dimming with cable inline controllers. Built in DIN-rail or panel mounting feature. Flip up cover for potentiometer.

LED backlitphoto frame

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Both designs can, with the right front cover, produce excellent UGR performance. To compare different brands and models look at the UGR tables that are part of the photometric data that should be available from all reputable manufacturers.

LED backlitdisplay Laptop

The lighting market now accepts back-lit panels as readily as edge-lit panels. Here at NVC we have had both designs in our product range, but we have decided that edge-lit is marginally better. This is because the rear of the panel is the most convenient position for the driver and, because we offer 5 and 7 years warranties, we are keen that the driver should remain as cool as possible.

20241117 — 1. Understand photometers that measure lux and foot-candles. These are units that describe the intensity of light on a surface, or illuminance.

LED-backlit LCD display means

edge-lit vsbacklit ledtv

A back-lit LED panel is made of an array of LEDs fitted on a horizontal plate shining vertically down through a diffuser into the space to be illuminated. Back-lit panels are sometimes also known as direct-lit panels.

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Backlit ledvsled

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LED backlitdisplay means

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