Of course, competition between companies is accompanied by a continuous improvement of technology. – models with Edge LED are expensive compared to Direct LED – excessive lighting on the edge of the screen But today it’s less popular because of the high cost that is due to the large number of LEDs. Of course, all sides configuration is optimal for local dimming and ensures maximum depth and uniformity of the black level on the screen. Typically, companies indicate a backlight configuration – all sides, only on one side (usually on top or bottom) or on two sides (usually on the sides). Expensive 4K TVs often have LED stripes on all four edges (all sides configuration). Budget models use only one or two LED stripes on the bottom, top or side. The number and location of LED strips is the main difference. But LEDs for backlight are located at the edges behind the screen. Of course, this backlight is the cheapest and easiest. Therefore, these models are significantly thicker compared to Edge LED. Uniform backlight requires a high-quality optical diffuser that affects the thickness of the matrix container. – relatively large thickness of the matrix. The distance between the LEDs is 3 to 5 inches, depending on the type of LED strip. The LED strips inside the matrix container are arranged parallel to each other. In this case, the light falls on a special splitter, then redirected to the diffuser and dissipates over the surface of the matrix. Direct LED uses LEDs behind the matrix across its surface, and Edge LED uses LEDs along the perimeter of its side surface. It’s subdivided into Direct LED and Edge LED. LED backlight is most popular in modern TVs.
In turn, image quality depends on the quality of the LED backlight.Īs known, LCD pixels do not emit light and require a backlight.
Of course, the TV choice depends on the image quality.