MCU介面與RGB介面比較

在嵌入式顯示解決方案的設計中，介面類型的選擇往往決定了整個專案的技術路線和成本結構。MCU TFT顯示器和RGB TFT顯示器作為目前應用最廣泛的兩種介面方案，分別適用於不同的場景和效能需求。

這core feature of the MCU TFT display lies in the fact that the screen driver IC is equipped with a GRAM. The MCU sends commands and data through the parallel bus, and the driver IC parses the commands and writes the data into the internal memory. Then, it autonomously generates timing signals to drive the screen for display. Throughout this process, no dot clock, line synchronization, or field synchronization signals are required.

這RGB介面透過平行資料線傳輸每個像素的R、G、B分量，同時輸出像素時脈（PCLK）、水平同步（HSYNC）、垂直同步（VSYNC）和資料啟用（DE）訊號。

If the application scenario mainly involves static interfaces, parameter display, and menu switching, the MCU interface can fully handle the task. However, if it involves video playback, real-time data visualization, and smooth animation transitions, the advantages of the RGB interface cannot be replaced. The RGB interface can directly support a 60fps refresh rate, ensuring a smooth and uninterrupted display.

MCU介面以其控制方式簡單、主控門檻低而勝出，適用於小尺寸、中低刷新率的顯示應用。

RGB介面透過直寫架構實現高頻寬、低延遲的顯示效果，是大尺寸、高解析度、視訊相關應用的必然選擇。