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240RGB x 432 TFT LCD Controller Driver
Integrated Power Circuit, Gate and Source Driver with built-in RAM

SSD2220 is an all in one TFT LCD Controller Driver that integrated the RAM, power circuits, gate driver and source driver into a single chip. It can drive up to 262k color amorsphous TFT panel with resolution of 240 RGB x 432. 

It also integrated the controller function and consists of 233,280 bytes (240 x 432 x 18 / 8) Graphic Display Data RAM (GDDRAM) such that it interfaced with common MPU through 8-/9-/16-/18-bit 6800-series / 8080-series compatible parallel interface or serial peripheral interface and stored the data in the GDDRAM. Auxiliary 18-/16-/6-bit video interface (VSYNC, HSYNC, DOTCLK, DEN) are integrated into SSD2220 for animation image display. 

SSD2220 embeds DC-DC Converter and Voltage generator to provide all necessary voltage required by the driver with minimum external components. A Common Voltage Generation Circuit is included to drive the TFT-display counter electrode. An Integrated Gamma Control Circuit is also included that can be adjusted by software commands to provide maximum flexibility and optimal display quality.

SSD2220 can be operated down to 1.4V and provide different power save modes. It is suitable for any portable battery-driven applications requiring long operation period and compact size.

• 240RGB x 432 single chip controller driver IC for 262k color amorphous TFT LCD

• Power Supply

  • VDDIO = 1.4V - 3.6V (I/O Interface)

  • VCI = 2.5V - 3.6V (power supply for internal analog circuit)

• Output Voltages

  • Gate Driver: 

    • VGH-GND = 15V ~ 19V

    • VGL-GND = -6 ~ -15V

    • VGH-VGL = 30Vp-p

  • Source Driver:

    • Maximum of VLCD63 = 6V

    • Typical Source Output Voltage variation: ±15 mV

  • VCOM Driver: 

    • VCOMH = 3.0V ~ 5.0V

    • VCOML = -1.0V ~ -3.0V

    • Maximum of VCOMA = 6V

• System Interface

  • 16-/18-bit RGB interface (DEN, DOTCLK, HSYNC, VSYNC, DB[17-0])

  • High-speed interface by 8-/9-/16-18-bit 6800-series / 8080-series parallel ports

  • Serial Peripheral Interface (SPI)

  • VSYNC interface (system interface + VSYNC)

  • WSYNC interface (system interface + WSYNC)

• Support low power consumption:

  • Low voltage supply

  • Low current sleep mode

  • 8-color display mode for power saving

  • Charge sharing function for step-up circuits

• Internal power supply circuit

  • Voltage generator

  • DC-DC converter up to 7x/-5x

• Built-in internal oscillator

• Internal GDDRAM capacity: 233280 Byte

• Support Frame and Line inversion AC drive

• TFT storage capacitance: Cs on common

• Support source and gate scan direction control

• RGB separate gamma

• Programmable gamma correction curve

• Built-in Non Volatile Memory for VCOM calibration

• Support flexible arrangement of gate circuits on both sides of the glass substrate