Whose matrix is in the TVs Xiaomi 4S: analysis of manufacturers, technologies and impact on image quality

Xiaomi Mi TV 4S has long been popular due to its combination of affordable prices, modern features and decent picture quality. However, when choosing a model, many people are faced with the question: whose matrix is used in these TVs? The panel manufacturer directly depends on the color reproduction, contrast, viewing angles and even durability of the device. In this article, we will discuss in detail which companies supply matrixes for Xiaomi 4S, how to determine the model of their panel and what this affects during operation.

It's important to understand that Xiaomi doesn't make the arrays themselves -- they buy them from the world's leading suppliers, such as BOE, CSOT (part of TCL), Samsung Display, and others -- but depending on the batch, the region of sales, and even the diagonal of the TV, you can have panels from different manufacturers, and this often causes controversy in reviews: some users praise saturated colors, others complain about the backlight, and let's see why this happens and how to check it out.

Who supplies matrixes for Xiaomi Mi TV 4S: the main manufacturers

The Mi TV 4S series (including 32, 43, 50, 55, 65 and 75) uses three main types of arrays: VA (Vertical Alignment), IPS (In-Plane Switching) and, less commonly, ADS (Advanced Super Dimension Switch). Each type has its pros and cons, and panel manufacturers often specialize in a particular technology.

• 🔹 BOE (Beijing Optoelectronics Technology, China’s largest manufacturer, supplies VA-Matrixes for most Xiaomi models 4S. It is known for high contrast, but is sometimes criticized for uneven lighting.
• 🔹 CSOT (China Star Optoelectronics Technology is another Chinese giant in the group. TCL. Provides as VA, so ADS-Matrixes (improved version) IPS). The latter are found in more expensive modifications.
• 🔹 Samsung Display is a Korean manufacturer whose VA-Matrices are considered the benchmark for contrast. 4S They are used less frequently, mainly in batches for the European market.
• 🔹 AU Optronics (AUO) — Taiwanese company specializing in IPS-Matrices. Found in separate batches of Xiaomi 4S, Especially in the 32" and 43" models".

Interestingly, even within a single model (e.g., the Mi TV 4S 55) you can get matrixes from different manufacturers, depending on Xiaomi’s supply chains and supplier contracts at the time of production, for example, in 2020-2021, panels from BOE dominated, and in 2022-2023 – from CSOT.

How to find out what matrix is in your Xiaomi Mi TV 4S

There are several ways to identify the manufacturer of the matrix, and the most reliable way is to take apart the TV and see the markings on the back of the panel, but it's risky (you can damage the plumes).

1. Using the service menu: Go to Settings → About TV → Software version and quickly press the OK button on the remote 5 times in a row. The service menu will open, where the matrix model will be specified in the Panel Info or Display section (for example, BOE NV55FHM-N42).
2. On the box or in the documentation, find the full model name (e.g. Mi). TV 4S 55 T2). The first letters after the diagonal often point to the matrix manufacturer: 📺 T2 — usually BOE; 📺 T3 — more often CSOT; 📺 EU — It could be Samsung Display for Europe).

Visual tests.

Run test images on your TV to check backlights, color reproduction and viewing angles, such as VA-matrixes that give a deep black color but lose brightness when viewed sideways, and IPS/ADS retain colors from any angle, but have a gray black.

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If the service menu does not contain information about the matrix, try typing the 9811 code on the remote in the main menu, which sometimes opens up additional data.

VA vs IPS vs ADS: Which Matrix is Best in Xiaomi 4S?

The type of matrix strongly affects the perception of the picture, let's understand what pros and cons of each variant in the context of Xiaomi Mi TV 4S:

Which is better? VA-matrixes are suitable for watching movies in a dark room (due to high contrast), and IPS/ADS is suitable for family viewing from different angles or for gaming (less distortion). Xiaomi 4S more often VA-panels from BOE, but in recent installments, ADS from CSOT are increasingly found - they are considered the middle ground.

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If you choose between VA and IPS Xiaomi 4S, Focus on the conditions of use: for the cinema at home — VA, kitchen or living room with a large table — IPS/ADS.

Xiaomi Mi TV 4S: What to Know Before Buying

Despite the good price-to-quality ratio, Xiaomi 4S TVs are not without typical matrix problems, and here are the most common user complaints and their reasons:

• 🔦 "The Dirty Screen Effect (Dirty Screen Effect, DSE) — uneven lighting, especially visible on a gray background. VA-matrix BOE.
• 🔦 Backlighting beat (PWM) — The flickering of the screen at low brightness, which can cause eye fatigue, is typical of cheap ones. VA-panels.
• 🔦 Blossoming of flowers during lateral viewing is a problem VA-If you look at the screen from an angle. >30°, dyed.
• 🔦 Hanging pixels - rare, but occurs in batches with matrices from CSOT (It usually appears in the first months of operation).

Many of these problems can be minimized by the right settings, such as the beating of the backlight decreases when brightness is above 30-40%, and the DSE is less noticeable on dynamic scenes (movies, games) and more obvious on static pictures (menu, subtitles).

If you have already bought a TV and found a matrix defect, check if it is not guaranteed. In most cases, Xiaomi replaces the panel for obvious problems (broken pixels, strong DSE), but you need to provide a photo or video of the defect.

Matrixes in different diagonals Xiaomi 4S: what to choose?

The manufacturer of the matrix may also depend on the diagonal of the TV, and these are the panels that are more common in the popular sizes of the Mi TV 4S:

• 📏 32" and 43" — usually IPS/ADS from CSOT or AUO. Small diagonals are less likely to suffer from problems with viewing angles, so IPS justifiable.
• 📏 50" and 55" - most often VA from BOE. These models are the most popular, so there is more variation (may be caught and even more). CSOT ADS).
• 📏 65" and 75" - mainly VA from BOE Or Samsung Display, in large diagonals. VA It wins by better contrast.

When choosing a diagonal, consider not only the size of the room, but also the distance to the screen. 4K-All the permissions (which are available in all Xiaomi) 4S Except for 32") the optimal distance is 1.5-2.5 diagonals. For example, for 55" it is ~2.2 to 2.7 meters. If you sit closer, you'll see pixels, then you'll lose detail.

Find out the matrix model through the service menu|View test videos on YouTube (black, gray, gradients)|Evaluate viewing angles (sitting on the side of the screen)|Check for broken pixels (white background)|To specify the date of production (new batches more often with the CSOT)-->

How to improve image quality depending on the matrix

Even if your matrix isn’t perfect, the right settings can make a big difference. Here are the guidelines for different types of panels in Xiaomi Mi TV 4S:

For VA-matrixes (BOE, Samsung Display)

• 🎛️ Set brightness to 40-50% (this will reduce the beating of the backlight).
• 🎛️ Enable Local Dimming (if available in the settings) to improve contrast.
• 🎛️ Use Movie or Game Mode – They are optimized for VA.
• 🎛️ Turn off dynamic contrast – it often spoils the picture.

For IPS/ADS-matrix (CSOT, AUO)

• 🎛️ Increase brightness to 60-70% to compensate for grey black.
• 🎛️ Turn on Noise Reduction (helps hide contrast flaws).
• 🎛️ Use Sport or Dynamic Mode for more juicy colors.
• 🎛️ Adjust the color temperature to Warm – this will reduce eye fatigue.

Don't forget to calibrate. In the Settings menu → Display and Sound → Picture → You can also manually adjust Contrast, Saturation and Sharpness. Use RTINGS guidelines to fine-tune it.

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If you're Xiaomi. 4S supportive HDR, But the picture looks dim, check if the mode is on. HDR customized HDMI-port (for external devices) or in application settings (for example, Netflix).

Should you buy Xiaomi Mi TV 4S in 2026?

Xiaomi Mi TV 4S remain relevant due to the low price and good functionality (4K, HDR, Smart TV on Android TV).

⚠️ In 2023-2026, Xiaomi began to gradually replace the series 4S on the new Xiaomi lineup TV A and Xiaomi TV Q. That means that 4S They may disappear from sale or remain only in budget diagonals (32, 43).If you want long-term support for updates, consider more recent models.

The benefits of the Mi TV 4S in 2026 are:

• ✅ Prices are lower than competitors with similar characteristics.
• ✅ Good performance for everyday tasks (YouTube, streaming, games through cloud services).
• ✅ Google Assistant and Chromecast support.

Disadvantages:

• ❌ Aging Platform (Android) TV 9-10, while the new models are on Google TV).
• ❌ Risk of getting a matrix with defects (especially in 2020-2021 batches).
• ❌ No Dolby Vision support and HDMI 2.1 (important for gamers).

If you want a low-cost TV for the kitchen, bedroom or cottage, the Xiaomi 4S is still a good choice. For a home theater or game console, you should take a closer look at the Xiaomi TV Q2 or Redmi Smart TV X.

FAQ: Frequent questions about the matrices in Xiaomi Mi TV 4S