Backlit vs Edge Lit LED Panel: A Comparative Analysis

When it comes to LED panels, there are two primary types of lighting arrangements - backlit and edge lit. While both technologies have their advantages and disadvantages, understanding the key differences between them is crucial for making an informed decision.

Local Dimming Technology

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One way companies solve the problem of image quality is through Local Dimming technology. This innovation allows for independent on/off control of individual groups of LEDs in different areas of the screen. However, this technology falls short when it comes to providing low black levels and high contrast ratios, which are essential for excellent color transitions.

LED Backlight: A Brief Overview

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LED backlighting is always active, even when the crystals are closed. This means that light is constantly passing through the panel, affecting the overall image quality. While LG's 9 series models feature a Direct LED backlight, its quality is inferior to other technologies.

Edge Lit LED vs Direct LED

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Edge Lit LED panels use LEDs along the perimeter of the side surface, whereas Direct LED panels employ LEDs across the entire surface of the matrix behind the screen. Edge Lit LED technology has gained popularity due to its improved local dimming capabilities and reduced cost compared to Direct LED.

Challenges with Edge Lit LED

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Despite its advantages, Edge Lit LED panels have some significant drawbacks. For instance, excessive lighting on the edges can lead to a compromised viewing experience. Moreover, the high cost of this technology is largely attributed to the large number of LEDs required.

Optimal Backlight Configuration

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The configuration of LED backlighting plays a crucial role in achieving optimal local dimming and uniformity. Typically, manufacturers indicate the location of LED stripes on the screen, including all sides, one side (usually top or bottom), or two sides (usually sides). High-end 4K TVs often feature LED strips on all four edges, whereas budget models may use only one or two LED stripes.

Key Differences between Edge Lit and Direct LED

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The primary distinction between Edge Lit and Direct LED lies in the placement of LEDs. In Edge Lit technology, LEDs are located along the edges behind the screen, whereas in Direct LED, LEDs are placed across the entire surface of the matrix behind the screen. This fundamental difference affects the thickness of the matrix container.

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In conclusion, understanding the differences between backlit and edge lit LED panels is essential for making an informed decision when choosing a TV. While both technologies have their strengths and weaknesses, Local Dimming technology offers improved contrast ratios and black levels. Ultimately, image quality depends on the quality of the LED backlighting, which is a critical factor to consider when selecting the perfect TV for your viewing needs.

Backlit vs edge lit led panel