When looking at TFT LCD spec sheets, it is not uncommon to come across terms such as "Built-in Driver" and "No Controller". These terms can be confusing for those who are not familiar with display technologies, but they are important to understand in order to choose the right display for your project.

In simple terms, the built-in driver refers to the circuitry that controls the display and ensures that the pixels are lit up in the right way to produce the correct imagery. The controller, on the other hand, is the circuitry that communicates with the microcontroller or other source to provide the driver with the required information to display images.

So, when a TFT LCD spec sheet states that the display has a built-in driver and no controller, it means that the driver circuitry is already integrated into the display, but there is no separate controller circuitry.

There are some advantages and disadvantages to using a display with a built-in driver and no controller. Here are some of the key things to consider:

 

Advantages of built-in driver/no controller displays:

1. Lower Cost: Since there is no need for extra circuitry, displays with a built-in driver and no controller tend to be less expensive than displays that include both.

2. Simpler Design: Due to the integrated nature of these displays, designing with them can be simpler and less complex than working with displays that require a separate driver and controller.

3. Lower Power Consumption: Display driver circuits can consume a significant amount of power. With a built-in driver, power usage can be minimized.

 

Disadvantages of built-in driver/no controller displays:

1. Limited Compatibility: Without a controller, these displays may only be compatible with certain microcontrollers or other source devices. This can limit the flexibility of a design, making it harder to choose the best component for a given project.

2. Limited Control: With no controller, the range of commands that can be sent to the display may be limited. This can make it more difficult to manipulate the display to produce the desired output, and reduce the overall functionality of a design.

3. Reduced Scalability and Upgradability: Since these displays do not come with a separate controller, upgrading or scaling up a design may be more difficult. Adding new features or expanding functionality could require significant rework or redesign.

 

In conclusion, whether or not you choose a TFT LCD display with a built-in driver and no controller will depend on the specific needs of your project. If you are working on a design where simplicity and cost are the most important factors, then this type of display may be suitable for you. If, however, you need more control and flexibility over the display, then a display with a separate controller may be a better choice. So, carefully consider both the advantages and disadvantages of each type of display, and choose the one that best meets your needs.