How to make a custom display on a White On Blue Graphic LCD?
Oct 14, 2025| Hey there! I'm a supplier of White On Blue Graphic LCDs, and today I'm gonna share with you how to make a custom display on these cool LCDs.
First off, let's talk a bit about what a White On Blue Graphic LCD is. It's a type of display that shows white text and graphics on a blue background. These LCDs are pretty popular because they offer good visibility and a classic look. They're used in a variety of applications, from industrial equipment to consumer electronics.
Understanding Your Requirements
The first step in making a custom display is to figure out what you actually need. Think about the size of the display. Do you need a small one for a handheld device or a larger one for a control panel? You also gotta consider the resolution. Higher resolution means you can display more detailed graphics and text, but it might also cost more.
Another important factor is the viewing angle. If your LCD will be viewed from different directions, you'll want a display with a wide viewing angle. And don't forget about the operating temperature range. If your device will be used in extreme conditions, you need an LCD that can handle it.
Designing the Graphics
Once you've got your requirements sorted, it's time to design the graphics for your custom display. You can use graphic design software like Adobe Photoshop or Inkscape. Start by sketching out your ideas on paper. This will help you get a clear picture of what you want the display to look like.
When designing the graphics, keep in mind the limitations of the LCD. For example, the number of colors it can display is usually limited. Most White On Blue Graphic LCDs are monochrome, so you'll be working with just white and blue. You can create different shades of gray by using different patterns of white dots on the blue background.
Make sure your text is easy to read. Use a simple font and a reasonable size. Avoid using too many fancy graphics or small text that might be hard to see. And if you're using icons, make them clear and recognizable.


Creating the Display File
After you've designed the graphics, you need to convert them into a file format that the LCD can understand. This usually involves creating a bitmap file. There are different software tools available that can help you with this. Some LCD manufacturers even provide their own software for creating display files.
The display file contains all the information about the graphics, including the position, size, and color of each pixel. You'll need to make sure the file is in the correct format and resolution for your specific LCD.
Programming the LCD
Once you have the display file, it's time to program the LCD. This involves connecting the LCD to a microcontroller or a display driver. The microcontroller or driver will read the display file and send the appropriate signals to the LCD to display the graphics.
You can use programming languages like C or C++ to write the code for the microcontroller. There are also development boards available that make it easier to program the LCD. These boards usually come with libraries and example code that you can use as a starting point.
Testing and Debugging
After programming the LCD, it's important to test it to make sure everything is working correctly. Connect the LCD to a power source and run the program. Check if the graphics are displayed correctly and if there are any issues with the text or icons.
If you encounter any problems, you'll need to debug the code. This might involve checking the connections, looking for errors in the display file, or modifying the code. It can be a bit time-consuming, but it's an important step to ensure the quality of your custom display.
Choosing the Right LCD Module
As a White On Blue Graphic LCD supplier, I can tell you that there are different types of LCD modules available. For example, you might be interested in the FSTN Graphic LCD Display Module. This type of module offers better contrast and wider viewing angles compared to standard TN LCDs.
If you're working on an industrial hygrometer, you might want to check out the LCD Screen Module for Industrial Hygrometer. It's designed to meet the specific requirements of industrial applications, such as high reliability and long lifespan.
And if you need a display with a high contrast ratio and good viewing angles, the VA TN LCD Display Module could be a great choice.
Conclusion
Making a custom display on a White On Blue Graphic LCD might seem like a complex process, but if you follow these steps, you can do it successfully. Remember to understand your requirements, design the graphics carefully, create the display file, program the LCD, and test it thoroughly.
If you're interested in purchasing White On Blue Graphic LCDs or have any questions about making custom displays, feel free to reach out. We're here to help you with all your LCD needs. Whether you're a small startup or a large corporation, we can provide you with high-quality LCD modules and the support you need to create amazing custom displays.
References
- General knowledge about LCD technology and display design
- Experience as a White On Blue Graphic LCD supplier

