In recent years, the rise of Mini LED TVs has become the hottest category in the mid-to-high-end TV market. However, this site has also received some netizens' exchange feedback on the topic of Mini LED TV,I found that many people have some confusion when buying TV。 When you walk into a home appliance store and buy a TV in an offline store,SomeMini LEDThe contrast of TV、The number of backlight partitions and other performance parameters are obviously very impressive,Why do you still feel that the picture quality is not pure enough,Especially in the picture played on a black background,The object seems to be shrouded in a layer of light mist,It looks a little hazy,There is also a layer of aperture on the edge。
The pain point of LCD TV picture quality - halo phenomenon
In fact, there is a special term for this phenomenon - halo (English name is Blooming), which is specially used to describe the visual effects of light fog and light clouds that appear around bright objects on a dark background. The main reason for this is that the TV backlight spills out from the area with higher brightness to the surrounding dark area, and the area that should be dark or does not emit light is affected by the adjacent area, which is a typical halo phenomenon. It's like suffering from"myopia astigmatism",Under the influence of halo, the bright light of the TV picture interferes with each other and becomes hazy,The dark part is no longer pure and loses texture,It greatly affects the user's visual experience,It is one of the main negative factors affecting the picture quality of LCD TV,Even if it is a relatively high-end Mini LED,If it is not optimized, it is difficult to escape。
The reason why the halo phenomenon has become a problem in the industry is that to eliminate it, it is necessary to start with the improvement of the light source in order to find the hope of fundamentally solving the problem, and at the same time, it also requires the manufacturer to comprehensively optimize the backlight response algorithm, LCD panel and even OD value (the distance from the backlight source to the diffusion plate, the smaller the better), and finally promote qualitative change.
TCL global halo control technology, so that the backlight is no longer "myopia"
It is especially difficult to solve the halo problem of Mini LED TV, and it is necessary to optimize each Mini LED light-emitting chip that is as small as 100 microns. TCL is the earliest home appliance head enterprise in China to deploy Mini LED, and after years of research and development, it now has industry-leading Mini LED technology.
In order to overcome the halo phenomenon, TCL has made comprehensive improvements in recent years for luminous light sources, lens technology, backlight response algorithms, OD values and screens, and is currently using the industry-leading Mini LED technology such as the second generation of six-crystal square core, optical image microlens, two-way 16bit, transient response, A++ butterfly wing star screen, etc., the global halo control technology has been thoroughly formed this year and has been applied to X11H, Q9K and other annual new products.
Since the halo problem is very similar to "myopia", then to correct it, the first thing to do is to improve the backlight to make it more eye-catching. Taking TCL X11H as an example, X11H is equipped with the latest second-generation six-crystal square core light source, and the 6 luminous points upgrade the sapphire high-gloss crystal base to maximize the luminous potential of the six-crystal square core, bringing a 33.5% brightness increase and a 40.2% energy efficiency increase.
Next is the same critical step, TCL put on special "glasses" for the light-emitting chip, and the light-controlling lens developed together with the light-emitting chip. At present, it has developed to the fourth generation, and TCL has 24 self-developed patents for lens technology, the latest "light control lighthouse" super-concentrating microlens can be adjusted multiple times, the surrounding light is gathered in the middle, and the light in the middle is scattered to both sides, and the light is accurately controlled layer by layer, compared with ordinary Mini LED, the halo control ability is increased by 96%, and the backlight uniformity is increased by 112%!
TCL is also equipped with the world's leading backlight response algorithm for this year's new X11H and Q9K, with two-way 16bit backlight control capabilities, which can achieve 65000-level fine light control. As well as transient response, there is zero delay in backlighting and image display, eliminating image smearing caused by backlight lag.
It is precisely because of TCL's continuous breakthrough in lens technology that the OD value can be further reduced, that is, the distance between the backlight and the diffusion plate can be shortened, and the halo can be further improved. Take TCL X11H as an example,OD has been as small as2mm,GenerallyMini LEDTV on the marketOD20 or more,At the same timeODThe reduction makes the TV thinner and lighter as a whole。 Coupled with TCL's excellent partner for Mini LED-A++ butterfly wing star screen, it improves the native contrast, stronger anti-halo and anti-glare capabilities, and has a large viewing angle, making the picture more pure and transparent.
Through the full-link optimization from the light-emitting chip to the imaging screen, the new generation of TCL Mini LED TV represented by X11H and Q9K has delivered a perfect answer to solve the halo problem of Mini LED TV. It should be pointed out that TCL's global halo control technology has been gradually improved in recent years, and some of its technologies have already been used in previous generations of products and have achieved good results.
With excellent anti-halo performance,Mini LED TV's picture quality can be more pure and transparent,Let's compare the screen camera of a set of TV screens,Let's appreciate the huge improvement of global halo control technology in anti-halo。
On the left is an ordinary LCD TV, and on the right is a TCL new generation Mini LED TV
It can be seen that the screen camera of the comparison group on the left frequently leaks light、Overexposure details are unclear,And on the rightTCL The picture of the new generation of Mini LED TV is more transparent and pure,Full of details。
Overall,With the industry's leading Mini LED strength,TCL brings subversive changes in halo global halo control technology,Truly solves the pain points of Mini LED TV in picture quality。 Looking forward to the future, with the core technology mastered in the field of Mini LED, TCL will definitely bring you a better product experience.