SPI Interface EPD 1.54 inch Product Introduction
SFEPM154ZYBW-7174AN is an active matrix electrophoretic display (AM EPD) with SPI interface. This 1.54-inch e-ink display module has an effective area of 152 × 152 pixels and can display images with 1-bit black and white capability. This module is a TFT array driven electrophoretic display, and the integrated circuit includes gate driver, source driver, MCU interface, timing controller, oscillator, etc DC-DC,SRAM,LUT,VCOM. This module can be used for portable electronic devices, such as electronic shelf labeling (ESL) systems.
Features
Mechanical Specifications
Parameter | Specifications | Unit | Remark |
Screen Size | 1.54 | Inch | |
Display Resolution | 152(H)×152(V) | Pixel | Dpi:140 |
Active Area | 27.512×27.512 | mm | |
Pixel Pitch | 0. 181×0. 181 | mm | |
Pixel Configuration | Square | ||
Outline Dimension | 32.0(H)×50.00(V) ×2.5 (D) | mm |
SPI Interface EPD 1.54 inch Product Drawing
Input /Output Pin Assignment
No. | Name | I/O | Description |
1 | GND | P | Ground |
2 | VCC | P | Power Supply for the chip |
3 | SCL | I | Serial Clock pin (SPI) |
4 | SDA | I/O | Serial Data pin (SPI) |
5 | RES# | I | Reset signal input. Active Low. |
6 | DC | I | Data /Command control pin |
7 | CS | I | Chip select input pin |
8 | BUSY | O | Busy state output pin |
Optical Specifications
Measurements are made with that the illumination is under an angle of 45 degree, the detection is perpendicular unless otherwise specified.
Symbol | Parameter | Conditions | Min | Typ. | Max | Units | Notes |
R | White Reflectivity | White | 30 | 35 | - | % | 8-1 |
CR | Contrast Ratio | Indoor | 8:1 | - | 8-2 | ||
GN | 2Grey Level | - | DS+(WS-DS)*n(m-1) | 8-3 | |||
T update | Image update time | at 25 °C | 22 | - | sec | ||
Life | Topr | 1000000times or 5years |
Notes:
8-1. Luminance meter: Eye-One Pro Spectrophotometer.
8-2. CR=Surface Reflectance with all white pixel/Surface Reflectance with all black pixels.
8-3. WS: White state, DS: Dark state
Panel DC Characteristics
Parameter | Symbol | Conditions | Applicable pin | Min. | Typ. | Max | Unit |
Single ground | VSS | - | - | 0 | - | V | |
Logic supply voltage | VCC | - | VCC | 2.2 | 3.0 | 3.7 | V |
Image update time | - | 25 ºC | - | - | 3 | - | sec |
Sleep mode current | Islp_VCI | DC/DC off No clock No input load Ram data retain | - | - | 25 | - | uA |
Deep sleep mode current | Idslp_VCI | DC/DC off No clock No input load Ram data not retain | - | - | 3 | 5 | uA |
SPI Interface EPD 1.54 inch Product Image
Factory Facilities and Certificates
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