When choosing a LCD screen, you often see words like WLED, DLED, or ELED written on the backlight mode. You may not know the difference. Today, let's learn about the meaning behind these letters with the editor.

What is WLED?

Let's first clarify the concept of WLED. The full name of WLED is White Light Emitting Diode, also known as White LED. Compared to traditional CCFL (Cold Cathode Fluorescent Lamp), WLED has made great progress in technology and is currently the solution for most LCD screen backlighting. WLED is further divided into DLED and ELED. That is to say, WLED is a backlight solution, and DLED and ELED are different types of WLED solutions.

Direct Down Backlight Technology (DLED)

DLED stands for Direct Down LED, which evenly distributes the LED lights behind the panel, allowing the backlight to spread evenly across the entire screen.

Side entry backlight technology (ELED)

ELED stands for side entry LED, which is a type of LED that installs multiple LED lights at the border of the panel to illuminate the light source from the side. A light guide plate is used to evenly distribute the LED light to the display area.

From this concept, we can imagine that DLED is heavier and more energy consuming compared to ELED, because the number of LED lights required behind the full panel is definitely more than the number of LEDs required for the panel frame; The advantages of ELED lie in its lightness, thinness, and energy efficiency.
DLED evenly distributes LED lights behind the panel, so its control of backlight brightness and image quality is relatively better. Using ELED LCD screens, manufacturers need to spend more energy and technology controlling backlight brightness and image quality, which requires higher production and research and development technology from manufacturers, and natural costs are also higher.
If you want to purchase a LCD screen but don't know how to choose it, you can contact us, such as Xin Gaoliang, which has a professional sales team and a team of experienced engineers to customize the best solution for you.