Direct Led Lighting Vs Edge Lighting

Technically both are backlighting since the light passes through the lcd panel from behind.

Direct led lighting vs edge lighting.

This article reviews the direct led backlight vs edge led backlight in modern tvs including their operation principle key features design pros and cons. Backlighting has proved the natural benefit of projecting light through less material. So what exactly is a direct lit led backlight. Edge lit was the most popular format in the led panel category during the introductory stage of the led lighting market.

The contrast of lcd and led tvs has been topped out at 5000 1 for over 10 years so even now blacks on led tvs are very dark gray at best. By contrast lcd tvs that use led backlighting have an array of leds directly behind the lcd screen. Edge led lighting system it is the most widely used system in led televisions thanks to its lower production costs as it allows us to offer thinner designs. Led chandeliers led pendants led ceiling lights led wall sconces led bathroom lighting led outdoor lighting led landscape lighting led recessed lighting led under cabinet lighting led track lighting led panels led accent spot lights led lamps led light bulbs led island lights led emergency lighting view all led lighting.

However direct lit televisions don t use local dimming which is a key factor in how full array tvs are able to produce deep uniform blacks. The same concept is used in the direct lit led panels so lesser led s are required in this type of panels when compared to other lighting technologies like edge lit panels and cfl lights. Direct lit as with full array televisions direct lit tvs use several rows of leds placed behind the entire surface of the screen. However there has been a parting of the ways between models in terms of efficiency.

Edge lit retains a share of the market where unit. This is because lcd and led models are backlit meaning they rely on a light behind the panel to make the picture visible and the lcd layer is not able to prevent all light from escaping out of the screen. Unfortunately they don t have the advantage of local dimming. This is where the led lights are arranged behind the tv but don t have the ability to dim certain parts of the screen.

The difference is where the leds are mounted along the edges with a diffuser that bends the light to pass through the lcd panel or behind the panel. Eliminating the light pooling of edge lit screens. The advantage of this over an edge lit tv is that the lighting will usually be more uniform across the screen. Direct lit led bulbs can be placed over a large area to illuminate a light panel with various shapes and sizes.