TV Manufacturers at Odds Over Mini LED Definition

A lawsuit has been filed by TCL against Samsung over claims that the latter's budget LCD-LED TVs are falsely advertised as Mini LED sets. At the heart of the dispute is what constitutes a true Mini LED display and whether Samsung's M-series TVs meet these standards.

The TCL QM-series of Mini LED TVs, which compete with Samsung's M-series, use advanced backlighting technology that enhances image quality and delivers high dynamic range (HDR) on LCD-LED displays. However, without clear guidelines for what "Mini LED means, manufacturers are free to define the term as they see fit.

In a lawsuit filed in California in late August, TCL accused Samsung of using fraud to promote its M70H, M80H, and M90H TVs as Mini LED sets. The complaint alleges that these models are actually rebranded versions of Samsung's entry-level Crystal UHD line, which lacks the advanced backlighting capabilities associated with true Mini LED technology.

The lawsuit claims that Samsung's M-series TVs do not have backlights capable of full array local dimming (FALD), a key feature of high-end LCD-LED displays. FALD involves grouping multiple LEDs into zones, each with adjustable brightness levels to enhance contrast and deliver superior image quality.

A spokesperson for Samsung declined to comment on specific claims in the lawsuit, instead stating that the company intends to vigorously defend against TCL's allegations. The dispute highlights a pressing issue for consumers: without standard definitions for Mini LED technology, manufacturers can use the term to describe their products with varying degrees of accuracy.

TCL argues that true Mini LED displays require advanced backlighting capabilities, including FALD, which is essential for delivering high-quality HDR on LCD-LED screens. The company's lawsuit seeks to establish clear guidelines for what constitutes a Mini LED display and prevent manufacturers from misusing the term.

The outcome of this lawsuit could have significant implications for the TV industry, with potential consequences for consumers who rely on accurate product labeling when making purchasing decisions. As the case unfolds, it will be interesting to see how TCL's claims are received by Samsung and the wider industry.

The debate over Samsung's use of the term Mini LED on its M-series TVs has taken a interesting turn as TCL questions the accuracy of this labeling.

A closer look at the specifications for these TVs reveals that they employ Supreme Mini LED Dimming, which is described in the product pages' fine print as software-based technology. This distinction is crucial, as it highlights a key difference between Samsung's M-series and other TVs on the market that genuinely boast mini-LED backlighting.

In contrast to true mini-LED displays, which use individually addressable LEDs to create zones of varying brightness, Samsung's M-series relies on software analysis to determine optimal brightness levels for each frame. This approach may not be as effective in scenes prone to blooming artifacts, but it can still provide decent image quality with fewer LEDs or dimming zones.

Industry experts agree that true mini-LED displays require a specific hardware configuration, including a 2D array of LEDs uniformly distributed across the entire display area. Without this setup, software-based solutions like Samsung's simply don't qualify as genuine mini-LED technology.

Guillaume Chansin, associate director of displays and XR at Counterpoint Research, acknowledges that software plays an important role in optimizing image quality, but notes that it can never fully replace a well-designed hardware solution.

Eric Virey, principal displays analyst at Yole Intelligence, takes a more stringent view, insisting that FALD is fundamentally a hardware feature. Without the necessary 2D array of LEDs and accompanying algorithm to reduce blooming, software-based solutions are merely Mini LED dimming in name only.

The nuances of this debate will undoubtedly be closely watched by both industry insiders and consumers seeking clarity on what constitutes genuine mini-LED technology.

As TCL continues to push back against Samsung's labeling, it remains to be seen how the wider industry will respond. Will other manufacturers follow suit, or will they maintain their own interpretations of what constitutes a true mini-LED display?

The debate over what constitutes a true mini-LED display has sparked controversy in the industry, with TCL questioning Samsung's use of the term on its M-series TVs.

Industry experts agree that a key feature of mini-LED displays is local dimming, also known as full-array local dimming (FALD). This technology allows for more precise control over backlight zones, enhancing contrast and image quality.

Leading industry researchers concur with this assessment. I think that is broadly agreed across the industry that FALD is a key and mandatory feature in Mini LED backlights, said one expert.

The importance of local dimming in mini-LED displays is also reflected on Samsung's own website, which describes the technology as an advanced backlighting display system using tiny LEDs for precise control through local dimming zones.

However, TCL has argued that Samsung's M-series TVs do not support FALD. The company claims to have disassembled these sets and found that they lack the necessary LED control chip and circuitry required for local dimming.

The absence of FALD is just one issue with Samsung's M-series TVs. Another concern is whether they actually use mini-LEDs, which are typically defined as LEDs measuring between 0.1 mm to 0.3 mm in size.

Industry standards for what constitutes a mini-LED vary, and some sources refer to LEDs larger than 0.2 mm or even 3 mm as traditional LEDs. TCL's lawsuit claims that the LEDs used in Samsung's M-series TVs are significantly larger at 0.5 mm, raising questions about their classification as mini-LEDs.

The question of what constitutes a Mini LED display has been raised by TCL's lawsuit against Samsung, which claims that the LEDs used in Samsung's M-series TVs are significantly larger than those found in true mini-LED displays.

To support its claim, TCL points out that Samsung's M-series TVs have only a few dozen LEDs arranged on two aluminum strips, rather than thousands of tiny LEDs that are characteristic of genuine mini-LED technology. This arrangement is also visible in teardown videos from YouTube channel AP Tech, which show the backlight of an M-series TV consisting of just two rows of LEDs.

The lack of clear standards for what constitutes a Mini LED display has led to confusion among consumers and created a gray area where manufacturers can set their own definitions. The industry has not established any guidelines or regulations to define how many LED zones or mini-LEDs a display needs to qualify as a Mini LED, leaving shoppers to navigate unclear marketing claims.

Industry experts say that this lack of clarity is due in part to the absence of organizations with authority to establish and enforce standards for the display panel industry. As a result, TV brands have historically exploited this lack of clear guidelines to be more creative in their marketing, often using terms like Mini LED to describe displays that may not actually meet the criteria.

Some experts believe that TCL's claims raise important questions about the entire industry's use of the term Mini LED. Virey notes that while enthusiasts may enjoy digging into the technical details of backlight technology, most consumers simply care about performance.

The performance of Samsung's M-series TVs has been mixed in reviews. RTINGS found that the M80H had low contrast, with dark scenes looking washed out in a dark room. The review also noted that HDR content mastered at 600 or 1,000 nits cut off rapidly at the TV's peak brightness.

The debate over what constitutes a Mini LED display highlights the ongoing challenge of defining and regulating emerging technologies in the display panel industry. As Virey notes, creating standards for these technologies can be a complex process that may lead to an endless cycle of innovation and marketing claims.

The contrast ratio achieved by TCL's budget QM6K TV after calibration was 118:059:1, significantly lower than Samsung's Mini LED Neo QLED QN80H, which reached a contrast of 80,000:1 according to RTINGs.

A video comparison between M-series TVs and those with Full Array Local Dimming (FALD) technology shows how dimming works differently in each case. This highlights the importance of local dimming in achieving high contrast ratios.

TCL's QM6K TV has some drawbacks despite its impressive contrast ratio. Its HDR performance is reportedly lacking, which may be a concern for consumers who want to enjoy high dynamic range content on their TVs.

According to RTINGs' review, the QM6K TV looks good in a dark room thanks to its high contrast ratio and great black uniformity, but it falters in other areas. The reviewer notes that the TV's HDR brightness is mediocre at best, which can detract from the viewing experience.

The fact that TCL has an obvious stake in challenging Samsung's marketing claims raises questions about the motivations behind this criticism. However, the underlying issue remains: what should consumers expect when a TV is marketed as Mini LED?

A key distinction between different types of Mini LED TVs is how they use local dimming to improve contrast and HDR performance. While smaller LEDs may be used in some Mini LED TVs, it's not just the size of these LEDs that matters - it's how they're used to deliver improved picture quality.

TCL's own budget line of Mini LED TVs can disappoint in areas where the technology should have an advantage, such as HDR support. Compared to Samsung's more expensive Mini LED TVs, TCL's M-series has worse HDR performance and black levels, making it harder to use in a dark room according to RTINGs' testing.

The debate over what constitutes a true Mini LED TV with local dimming highlights the complexity of marketing claims in the tech industry. As new technologies emerge, manufacturers must balance innovation with consumer expectations, leading to a cycle of innovation and marketing claims that can be difficult to navigate.

Consumers navigating the TV market may find themselves in a confusing situation due to the proliferation of marketing terms such as Mini LED" and "QLED". These labels are often used without providing clear information about the actual performance capabilities of the TVs.

Ultimately, it is essential for shoppers to look beyond marketing labels and focus on more reliable indicators of a TV's quality, including comparative pricing and independent testing results.