高亮液晶屏
TFT触摸屏
HDMI TFT显示器
工业级TFT屏
OLED屏
条型TFT屏
圆形TFT屏
方形TFT屏
全视角TFT屏
电阻触摸TFT屏
电子墨水屏
树莓派触摸屏
OLED模块
产品概述
揭开 TFT 4 英寸 LCD 面板的面纱:生动显示的窗口
使用SF-TO400DX-8979A-CT TFT LCD 显示模块踏上视觉之旅,这是一项技术奇迹。这款透射式彩色有源矩阵 TFT(薄膜晶体管)液晶显示器采用非晶硅 TFT 作为其开关设备,确保了卓越的清晰度。这款 4 英寸显示器由 TFT LCD 模块、精密的驱动电路和高效的背光单元组成,设计精良。
4 英寸 TFT LCD 的分辨率令人眼花缭乱,为 320 (RGB) X 320 点,能够呈现高达 262k 的鲜艳色彩。 LCD 面板支持 MCU 和 SPI 接口,可在 2.7V 至 3.6V 的电源电压 (VCC) 范围内无缝运行,标准值为 3.3V。
SF-TO400DX-8979A-CT 可在 -20℃ 至 +70℃ 的温度范围内工作,存储温度范围为 -30℃ 至 +80℃,多功能性与耐用性兼具。这款 LCD 模块配备 PCAP 电容式触摸屏,在自动化、GPS、医疗设备、工业设备、安全系统、白色家电、智能家居设置、物联网系统、汽车设备、汽车仪表板、汽车音响、汽车时钟、汽车门显示系统、水离子发生器等应用中表现出色。TFT 显示屏可在各种情况下提供高质量、色彩丰富的图像,提升用户体验。
规格参数
| Product: | TFT 4″ Inch | Resolution: | 320X320 Pixels |
| Interface: | MCU SPI | Touch Screen: | With PCAP/CTP |
| Outline Dimension: | 84.0 x 84.0 x 3.37 mm | Viewing Direction: | All Viewing Angles, IPS |
| Pin Number: | 40 Pins | Connection: | Plugging |
| Surface Luminance: | 300 Cd/m2 | Supply Power: | 3.3 V |
| Current Consumption: | 20 mA | Operating Temp.: | -20℃ To +70℃ |
| Lifetime: | 40000 Hrs | Compliance: | REACH & RoHS Compliant |
4 英寸 TFT LCD 320×320 点,方形 TFT 4 英寸 LCD 外形结构图


接口引脚定义
| Pin No. | Symbol | Description | When not in use | |||
| 1 | LEDA | B/L positive pin | — | |||
| 2 | LEDK | B/L negative pin | — | |||
| 3 | LEDK | B/L negative pin | — | |||
| 4 | GND | Ground | — | |||
| 5 | VCI | Power supply(2.8-3.3V) | — | |||
| 6 | IOVCC | I/O power supply(1.8-3.3V) | — | |||
| 7 | TE | Tearing effect output | Open | |||
| 8 | CS | Chip selection pin. Low-active. | — | |||
| 9 | RS | Display data/command selection DCX=’ 1’ : display data or parameter. DCX=’0’ : register index / command. | — | |||
| 10 | WR/SCK | Write enable in MCU interface. In SPI mode, this pin is sclk | — | |||
| 11 | RD | Read enable | GND | |||
| 12 | SDI | SPI interface input/output pin. | — | |||
| 13 | SDO | SPI interface output pin. | — | |||
| 14 | GND | Ground | — | |||
| 15-30 | D0-D15 | Horizontal sync input | GND | |||
| 31 | RESET | This signal will reset the device and it must be applied to properly initialize the chip | — | |||
| 32 | IM2 | IM0=0 | IM2=0 | MCU 16 BIT | D[ 15:0] is used | — |
| IM0= 1 | IM2=0 | MCU 8 BIT | D[7:0] is used | |||
| 33 | IM0 | IM0= 1 | IM2= 1 | 4Line SPI | CS,RS,SCK.SDI | — |
| IM0=0 | IM2= 1 | Reserve | – | |||
| 34 | GND | Ground | — | |||
| 35 | TP_INT | TP Interrupt to the host | Open | |||
| 36 | TP_SDA | TP I2C data input and output | Open | |||
| 37 | TP_SCL | TP I2C clock input | Open | |||
| 38 | TP_RES | TP external reset, Low is active | Open | |||
| 39 | TP_VCI | TP power supply(2.8-3.3V) | Open | |||
| 40 | GND | Ground | — | |||
背光电气特性
| Item | Symbol | Min | Typical | Max. | Unit |
| LED module forward Voltage | VB LEDB | 12-13.2 | V | ||
| LED module current | IB LEDB | 30 | 40 | 50 | mA |
| LCM Surface brightness Luminance▼1 | LB SB | —– | 300 | —- | Cd/mP 2P |
| LCM Surface brightness uniform▼2 | LB DBBB | —- | 80 | —- | % |
LCD 电气特性
| parameter | Symbol | Condition | Min | Typ | Max | Unit | |
| Viewing Angle | Φ=3 O’clock | θ | Cr>10 | 75 | 85 | deg | |
| Φ= 6 O’clock | 75 | 85 | |||||
| Φ=9 O’clock | 75 | 85 | |||||
| Φ=12 O’clock | 75 | 85 | |||||
| Contrast ratio | Cr | θ=0 Φ=0 | 800 | 1000 | |||
| Respone time | Tr+Tf | — | 25 | — | ms | ||
| NTSC | % | 55 | 60 | ||||
| CIE(x,y) chromaticty | WHITE | X | θ=0 Φ=0 | Typ -0.03 | 0.294 | Typ +0.03 | |
| Y | 0.329 | ||||||
4 英寸 TFT LCD 320×320 像素,方形 TFT 4 英寸 LCD 产品图片



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