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2.8 Inch OLED Display Module 256x64 Resolution Parallel/SPI Interface
This high-performance 2.8-inch OLED display module features a 256(H)*64(V) resolution and offers versatile interface compatibility, including 68XX/80XX Parallel MPU, 3-Wire SPI, and 4-Wire SPI. Equipped with a monochrome green display, passive matrix technology, an ultra-high contrast ratio of >2000:1, and a 160° wide viewing angle, it delivers sharp, clear image quality. With a broad operating temperature range of -30℃ to 85℃ and a long service life of 10,000 hours, it's perfectly suited for industrial control systems, portable instruments, embedded systems, IoT devices, and professional equipment.
Product
2.8 inch OLED Module
Active Area
69.104(W)*17.264(H) mm
Resolution
256(H)*64(V) dots
Display Color
Green (Monochrome)
Brightness
60 Cd/m² (Min.), 80 Cd/m² (Typ.)
Outline Dimensions (Panel)
84.00(W)*25.80(H)*2.00(T) mm
Viewing Angle
≥160 Degree
Display Supply Voltage (VCC)
11.5 ~ 12.5 V (Typ. 12 V)
Interface
Parallel (68XX/80XX MPU) / Serial (3-Wire SPI / 4-Wire SPI)
Operating Temperature
-30 ~ +85 ℃
Driver IC
SSD1322
Storage Temperature
-40 ~ +90 ℃
IC Package Type
COF (Chip on Film)
Duty
1/64
Pixel Pitch
0.27(W)*0.27(H) mm
Display Mode
Passive Matrix
Pixel Size
0.254(W)*0.254(H) mm
Weight
8.8 g
Contrast Ratio
>2000:1 (Darkroom)
Operating Life Time
10,000 Hours (@80 Cd/m², 50% Checkerboard)
Operation Supply Voltage (VCI)
2.4 ~ 3.5 V (Typ. 2.8 V)
Logic Supply Voltage (VDD)
2.4 ~ 2.6 V (Typ. 2.5 V)
Product Highlights
2.8-inch OEL display, 256*64 resolution, multi-interface support (Parallel/SPI), SSD1322 driver IC, COF packaging, monochrome green display, >2000:1 high contrast ratio, 160° wide viewing angle, industrial-grade temperature range (-30~85℃), compact design, low power consumption, long service life, reliable performance for harsh environments
Technical Features
COF (Chip on Film) packaging ensures compact size (84.0*25.8*2.0mm) and high mechanical reliability, suitable for space-constrained applications
Multi-interface compatibility (68XX/80XX parallel, 3-wire SPI, 4-wire SPI) enables flexible integration with various MCUs and processors
Excellent optical performance: >2000:1 darkroom contrast ratio, 80 Cd/m² typical brightness, and 160° wide viewing angle for consistent display from all directions
Industrial-grade temperature range (-30℃ to +85℃) ensures stable operation in harsh environments such as industrial sites and outdoor equipment
Low power consumption: Typical VCI operating current 1.8mA, VCC operating current 25.5mA (50% display area on), sleep mode current ≤5μA
Rigorous reliability tests: Passes 500-hour high/low temperature operation/storage, high temperature/humidity storage, and thermal shock tests (-40℃⇔85℃, 100 cycles)
Brightness adjustment via IREF pin allows customization of display effects to adapt to different application scenarios
Compliant with MIL-STD-105E sampling plan, with strict quality control standards (AQL 0.65 for major defects, 1.0 for minor defects)
Built-in noise suppression and ESD protection, ensuring stable operation in complex electromagnetic environments
Electrical Specifications
High Level Input (VIH): ≥0.8*VDDIO; Low Level Input (VIL): ≤0.2*VDDIO High Level Output (VOH): ≥0.9*VDDIO (@Iout=100μA, 3.3MHz); Low Level Output (VOL): ≤0.1*VDDIO (@Iout=100μA, 3.3MHz) Operating Current: VCI (1.8~2.25mA Typ.), VCC (25.5~31.9mA Typ. @50% display area on; 40.1~51.1mA @100% display area on) Sleep Mode Current (VCI/VCC): ≤5μA SPI Interface Timing: Minimum clock cycle 100ns, clock high/low time ≥20ns Parallel Interface Timing: Minimum clock cycle 300ns, access time ≤140ns
Pin Definition
PIN
Symbol
Description
1
N.C. (GND)
Reserved Supporting Pin; Must be connected to external ground to reduce stress influence on function pins
26
VCI
Power Supply for Operation; Must be connected to external source, always equal to or higher than VDD & VDDIO
25
VDD
Power Supply for Core Logic Circuit; Can be supplied externally (2.4~2.6V) or regulated internally from VCI; Connect capacitor to VSS
24
VDDIO
Power Supply for I/O Pin; Connect to VDD or external source; All I/O signals have VIH reference to VDDIO
2
VSS
Ground of Logic Circuit; Reference for logic pins; Must be connected to external ground
3,29
VCC
Power Supply for OEL Panel; Most positive voltage supply pin; Must be connected to external source
5,28
VLSS
Ground of Analog Circuit; Should be connected to VSS externally
22
IREF
Current Reference for Brightness Adjustment; Connect to VSS via resistor; Set current lower than 10μA
4
VCOMH
Voltage Output High Level for COM Signal; Connect tantalum capacitor to VSS
27
VSL
Volume Output Low Level for SEG Signal; Leave open if external VSL not used; Connect resistor and diode to ground if used
21
FR
Cascade Application Connection Pin; No Connection pin; Must be left open individually
6~13
D7~D0
Host Data Input/Output Bus; 8-bit bi-directional data bus; Serial mode: D1=SDIN, D0=SCLK; Unused pins connect to VSS
14
E/RD#
Read/Write Enable or Read; 68XX-series: Enable (E) signal; 80XX-series: Read (RD#) signal; Connect to VSS in serial mode
15
R/W#
Read/Write Select or Write; 68XX-series: Read/Write selection; 80XX-series: Write (WR#) input; Connect to VSS in serial mode
16
BS0
Communicating Protocol Select; MCU interface selection input (works with BS1)
Data/Command Control; High = input as display data; Low = input transferred to command register
19
CS#
Chip Select; Chip enabled for MCU communication only when pulled low
20
RES#
Power Reset for Controller and Driver; Chip initialization executed when pin is low
23
N.C.
Reserved Pin; Reserved for compatible and flexible design
30
N.C. (GND)
Reserved Supporting Pin; Must be connected to external ground to reduce stress influence on function pins
Application Scenarios
Industrial control equipment (PLC panels, sensor data monitors, industrial controllers, industrial meters)
Portable instruments (handheld meters, data loggers, portable detection devices)
Embedded systems (IoT terminals, smart controllers, microcontroller-based projects)
Consumer electronics (smart home controllers, small POS machines, electronic appliances)
Automotive electronics (in-vehicle monitoring displays, small control screens, diagnostic tools)
Medical devices (portable medical monitors, small diagnostic equipment, healthcare devices)
Professional equipment (test instruments, measuring tools, communication devices)
Customization Options
FPC Design: Flexible FPC length and pin layout adjustments to match system integration requirements
Brightness Tuning: Customizable brightness levels (60~100 Cd/m²) based on specific application needs
Interface Optimization: Interface customization and initialization code adaptation for specific MCUs
Polarizer Customization: Different polarizer types (wide view, high contrast) for special viewing requirements
Packaging Solution: Custom anti-static packaging, vacuum packaging with desiccant for long-term storage
Quality Inspection: Enhanced quality control standards and custom inspection items for bulk orders
Warranty Extension: Extended warranty options (18~24 months) for bulk orders
Handling Notes
Electrostatic Protection: Use anti-static bracelets and grounded tools when handling. Work in 50%-60% relative humidity environment to reduce static generation. Do not touch pins, electrodes, FPC patterns or IC directly with hands. Shield the OEL driver from light in product design to avoid malfunction.
Cleaning Instructions: The polarizer surface is soft and easily scratched. Clean with Scotch Mending Tape No. 810 or equivalent. Do not use water, ethyl alcohol, ketone or aromatic solvents as they may damage the polarizer. Wipe off residue adhesive with recommended tape if needed.
Soldering Requirements: Avoid applying stress to LSI chips and surrounding molded sections. Ensure proper grounding of soldering tools. Do not overheat pins during soldering.
Storage Conditions: Store in anti-static vacuum bags avoiding direct sunlight, fluorescent light, high temperature/humidity or low temperature (＜0℃) environments. Recommended storage temperature: 0℃~30℃, humidity ≤60%. Prevent dewing on packages. Reseal if not used within 1 month after opening.
Operation Precautions: Follow the correct power-on sequence (VCI & VDDIO -> Display off command -> Initialization -> Clear Screen -> VCC -> Delay 100ms -> Display on command) and power-off sequence (Display off command -> VCC off -> Delay 100ms -> VCI & VDDIO off). Do not apply input signals when logic power is off. Avoid fixed pattern display for long periods to prevent afterimages. Install overcurrent protection (0.5A fuse recommended) in the VDD power circuit.
Disposal Notes: Request qualified companies to handle industrial wastes when disposing of the module. Observe environmental and hygienic laws and regulations if burning is necessary.
Shenzhen YZY Technology Co., Ltd. was founded in 2018. We are a manufacturer specializing in the R&D, production, sales and service of various display products. Our product portfolio includes LCD panels, touch displays, OLED modules, E-ink modules, HDMI monitors, digital photo frames and oth...
Shenzhen YZY Technology Co., Ltd. was founded in 2018. We are a manufacturer specializing in the R&D, production, sales and service of various display products. Our product portfolio includes LCD panels, touch displays, OLED modules, E-ink modules, HDMI monitors, digital photo frames and oth...
