The serial interface
Serial interface included: IIC, SPI, RS232
SCLK: serial clock (output from master);
MOSI; master output, slave input (output from master);
MISO; master input, slave output (output from slave);
SS: slave select
I²C (Inter-Integrated Circuit) includes the following 2 connections.
SCL (serial clock wire),
SDA (serial data and address wire).
Advantage is that R,G,B data is written to LCD directly without GRAM, high speed. Normally used in large-scale high-resolution LCD.
Disadvantage is to control LCD is more complex, and need more data wires than MCU interface.
Application: Medium size TFT (3.5” to 8”)
RGB interface includes 24 bit, 18 bit, 16 bit
The RGB interface
RGB interface often been used in control large-scale high-resolution LCD display. It include 6/16/18bits data (like R0, R1, , , G0, G1, , ,B0, B1, , , ), VSYNC (Vertical synchronization), HSYNC (Horizontal synchronization).
The LVDS interface
LVDS (Low-voltage differential signaling) is an electrical digital signaling standard that can run at very high speeds over inexpensive twisted-pair copper cables.