NV3029S-Datasheet-V1.0_兼容ST7789V.pdf
240RGB x 320dot, 262,144-color
TFT Controller Driver with Internal RAM
1. Introduction
NV3029S is a 262,144-color single-chip SOC driver for a-TFT liquid crystal display with resolution of
240RGBx320 dots, comprising a 720-channel source driver, a 320-channel gate driver, GRAM for graphic display
data of 240RGBx320 dots, and power supply circuit.
NV3029S supports 8-/9-/16-/18-bit data bus parallel interface, 6-/16-/18-bit data bus RGB interface and 3-/4-wire
serial peripheral interface (SPI). The moving picture area can be specified in internal GRAM by window address
function. The specified window area can be updated selectively, so that moving picture can be displayed
simultaneously independent of still picture area.
NV3029S can operate with 1.65V ~ 3.6V I/O interface voltage and an incorporated voltage follower circuit to
generate voltage levels for driving an LCD. NV3029S supports full color, 8-color display mode and sleep mode for
precise power control by software and these features make the NV3029S an ideal LCD driver for medium or small
size portable products such as digital cellular phones, smart phone, MP3 and PMP where long battery life is a major
concern.
240 RGBx320dot, 262,144-color TFT Controller Driver©2017
New Vision Microelectronics Inc. 7
2. Features
One-chip controller driver for 240RGB x 320 dot graphics display in 262,144 colors on TFT panel
One-chip solution for a-Si TFT panel
System interface
– 8-, 9-, 16-, 18-bit parallel ports
– 3-/4-wire serial peripheral interface
Moving picture display interface
– RGB interface (VSYNC, HSYNC, DOTCLK, ENABLE, DB17-0) via 6-, 16-, 18-bit ports
Window address function to specify a rectangular area in the internal RAM to write data
– Writes data within a rectangular area on the internal RAM via moving picture interface
– Reduces data transfer by specifying the area on the RAM to rewrite data
– Enables displaying the data in the still picture RAM area with a moving picture simultaneously
Display Colors (Color Mode)
– Full Color:262K, RGB=(666)max.,Idle Mode Off
– Color Reduce: 8-color, RGB=(111),Idle Mode On
Low–power consumption architecture (allowing direct input of interface I/O power supply)
– 8-color display function
– Input power supply voltages: VCCIO = 1.65V ~ 3.6V(interface I/O power supply)
VCI = 2.5V ~ 3.3 V (liquid crystal analog circuit power supply)
Driving Algorithm
‐ Dot Inversion
‐ Column Inversion
On-Chip Power System
‐ Source Voltage (VAP to VAN): +6.4~ -4.6V
‐ VCOM level: GND
‐ Gate driver HIGH level (VGH to AGND): +13.3V ~ +16V
‐ Gate driver LOW level (VGL to AGND): -10.2V ~ -7.9V
Internal liquid crystal drive circuit: 720-channel source output and 320-channel gate output
Internal oscillator, Hardware and software Reset
TFT storage capacitor: Cst only
Don’t need any external capacitor
Optimized layout for COG Assembly
