Mini LED TVs were first introduced by TCL in 2019. Since then, other TV manufacturers have followed in TCL’s footsteps to introduce their own Mini LED TVs to achieve superior picture quality.

TCL introduced the world's first Mini-LED TV, with technology that quickly became the gold standard for brightness and contrast. Since then we’ve only continued to bring new advancements to this innovative backlight technology. With sizes from 55-inches all the way up to a monumental 115-inches, upgrading to a QD-Mini LED TV from TCL lets you enjoy the stunning color, dramatic contrast, and incredible brightness on our biggest TVs yet. Here’s what else you need to know.

Mini-LED TVs are the perfect choice for cinephiles, gamers, and sports fans, who crave the best possible picture quality, without the limitations of other types of backlighting.

We can now try displaying something on the LCD through the Arduino. Before you do that, you need to download the Arduino LiquidCrystal library. Next, you need to extract the "LiquidCrystal" folder from the download file. Then, copy and paste the "LiquidCrystal" folder inside the Arduino's directory, an example of the final outcome directory should look like this: arduino-1.0.5librariesLiquidCrystal.

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Improved contrast: Mini LEDs can be dimmed more precisely than traditional LEDs. This allows for deeper blacks and brighter whites on-screen at the same time, resulting in a higher contrast ratio and more realistic images.

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This Arduino LCD tutorial will show you to interface a character LCD with an Arduino. You can use the information from this post to build your own LCD based Arduino projects. In the picture above, the LCD displays the text that we have programmed into the Arduino. You can modify and use the code posted here accordingly.

Mini LED TVs, on the other hand, use a much larger number of much smaller LEDs for backlighting. These Mini LEDs allow for more precise control of the backlight.

Next, power up the Arduino. You will notice that the backlight on the LCD turns ON. Also, when you turn the knob on the potentiometer, the character blocks on the LCD turn bright/dim. Check out the picture on below to see what I'm talking about. If your LCD displayed what is shown in the photo below, it means that your LCD is correctly set up! If you were not able to achieve this, double check your connections and your potentiometer.

That's about it, now you can add an LCD to your Arduino projects! Check out this demo video showing the character LCD with Arduino in action:

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LCDs are one of the easiest devices you can use to display the output from Arduino projects. However, there are two different types of LCDs available: graphical and character LCDs. We are going to use character LCDs here, as they are the easiest to work with. Also, based on the size of the LCD, there are different types:

That's it, you've finished wiring up the LCD to the Arduino. You will notice that there are four unconnected pins between the control pins and the data pins on the LCD, as shown below.

Reduced blooming: Blooming is a halo effect around bright objects on the screen, which is common in traditional LED TVs. Mini LEDs can minimize blooming due to the finer control of the backlight.

File-->Examples-->LiquidCrystal-->HelloWorld. Upload the code to your Arduino. You will see the following display on your Arduino.

The first thing you need to do before working on the LCD is to check it. For this, do the connections as shown in the diagram above. Connect pin 15 on the LCD to Arduino's 5V pin. Next, connect pin 16 on the LCD to the Arduino's GND pin. These pins are used to power the LCD's backlight.

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Incredible brightness: While other TV technologies deliver impressive picture performance in dark rooms where ambient lighting can be controlled, Mini LED TVs can deliver improved lighting performance in virtually any environment. From movie nights to daytime football games, you’ll always see the details and colors that immerse you in your favorite entertainment.

Our QM751, QM851 and QM891, all use QD-Mini LED technology. TCL’s vertical integration (which means we make our own stuff) not only ensures that the promise of stellar performance is realized, but it also helps us maintain world-class quality, while avoiding the added costs of paying a middleman to source parts.

The first step is to solder the 16 pin male headers onto the LCD. You can then use either a 16 pin female header to connect to the Arduino or just use a female to female connector. If you are for interfacing an Arduino for the first time, it's easiest to use a breadboard.

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Green and blue LCDs are the most common, however. The other colors can be difficult to obtain. In this tutorial, we are going to use a 20x4 blue character LCD. The Arduino talks to the LCDs via the four data lines. We use the digital pins on the Arduino to talk to the LCD and display what we want on it. Apart from these lines, there is also an enable pin, RS pin and an RW pin. The backlight on the LCD is activated when you give 5V from the Arduino to pin 15 on the LCD and by grounding pin 16. Apart from this, you also need a 10K potentiometer to adjust the contrast of the LCD.

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Next, we have to connect the four data pins on the LCD. Connect the LCD's pin 14 (DB7) to the Arduino's digital pin 12. Then, connect the LCD's pin 13 (DB6) to the Arduino's digital pin 11. Next, the LCD's pin 12 (DB5) to the Arduino's digital pin 10, then the LCD's pin no 11 (DB4) to the Arduino's digital pin 9.

Not all Mini LED TVs these days are created equal. New 2024 QD-Mini LED TVs from TCL take the benefits of Mini LED TV performance, and raise the bar for brightness, contrast, and color, even further.

TCL QD-Mini LED TVs set themselves apart from standard Mini LED with advanced optical technologies and premium performance, becoming the new “Ultimate Choice” in TV. TCL’s 2024 QD-Mini LED series features an incredibly high number of dimming zones, up to over 5,000, remarkably high brightness, up to 5,000 Nits Peak, and QLED ULTRA with 97%+ of DCI-P3 Color Gamut and 100% Color Volume for rich color.

Enhanced HDR: Mini LED TVs can deliver a wider range of colors and highlights thanks to the improved brightness control. This is especially noticeable in HDR (High Dynamic Range) content.

Next, you need to set up the logic for the LCD. To do this, connect pin 1 on the LCD to the Arduino's GND pin. Then, connect pin 2 on the LCD to the Arduino's 5V pin. Next, you need to set up the contrast adjusting potentiometer. Take the 10K potentiometer and connect the first terminal to the Arduino's 5V pin and the second terminal (middle pin) to the LCD's pin 3 and the third terminal to the Arduino's GND pin.

Interfacing a character LCD to an Arduino adds a nice element of readability to your project. Many of the best Arduino projects around the world sport LCD displays. These LCDs can be used to display information from the Arduino or any sensor connected to it. For example, you can create a temperature monitoring system which displays the temperature on your Arduino. You can make your own speedometer that displays your speed on the LCD! Depending on what you want to build, an LCD is a highly useful output device for your Arduino.

Let's start with connecting the control wires for the LCD. Connect the LCD's pin 5 (RW) to the Arduino's GND pin. This pin is not used, and serves as the Read/Write pin. Next, connect the LCD's pin 4 (RS) to the Arduino's digital pin 7. The RS pin is used to tell the LCD whether we are sending it data or commands (to change the position of the cursor). Next, connect the LCD's pin 6 (EN) to the Arduino's digital pin 8. EN is the enable pin on the LCD, this is used to tell the LCD that data is ready for reading.

Try tinkering with the code for the LCD. Basically, there are three main functions used for controlling the text on the LCD:

Regular LED TVs use a layer of light-emitting diodes (LEDs) behind the LCD panel to illuminate the image that’s on-screen.

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