Mar 23, 2017

Fundamentals of LED Backlights

There are two types of LED backlights (in simple terms), edge-lit and direct. EDGE LIT In an edge-lit backlight, there is a row of LED light emitters (usually white) along one, two, or three edges of a backlight with reflective films and coatings to funnel that light across the entire back of an LCD panel in a uniform manner. Advantages: Results in a thin overall LCD display profile. If you see a panel that is very, very thin, most likely it is using an edge-lit backlight design. It is lower cost since it uses less LEDs to cover a larger area of display. Disadvantages: Can have some brightness uniformity issues, creating bright edges of More…

LED , LED backlighting , led backlit , led edge-lit , LED Direct Lit