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Brand Name : SAEF
Model Number : SFTO109JY-7337AN
Certification : ISO9001 / ISO14000
Place of Origin : ShenZhen / China
MOQ : 3 units (Negotiable for sample orders)
Price : $1.60USD - $1.90USD / unit (FOB Shenzhen, based on order quantity)
Payment Terms : T/T, PayPal, T/T 50% deposit, 50% before shipment
Supply Ability : 3,000,000 units / month
Delivery Time : 1–5 weeks after order confirmation
Packaging Details : Export-ready carton box
Display Size : 1.09-inch Circular
Resolution : 240×240 Pixels
Interface : SPI 4-Wire (SCL/SDA/CS/RS)
Color Depth : 262K Colors
Driver IC : GC9A01 (Embedded GRAM)
Viewing Angle : 85° All Directions
Surface Luminance : 400 cd/m²
Operating Temp. : -20°C to +70°C
Storage Temp. : -30°C to +80°C
Operating Voltage : Logic: 1.65-3.3V (IOVCC)
Response Time : 30ms (Tr+Tf Typical)
Compliance : REACH, RoHS & Halogen Free
A 1.09" circular TFT LCD module engineered for industrial automation, medical devices, and premium IoT systems. Resolves critical design challenges with:
Ideal for replacing OLEDs in space-constrained, high-reliability HMI applications.
Critical Technical Specifications
| Category | Parameter | Min. | Typ. | Max. | Unit/Conditions | 
|---|---|---|---|---|---|
| Electrical | Logic Voltage (IOVCC) | 1.65 | 3.3 | 3.3 | V (±10%) | 
| Analog Voltage (VCI) | 2.5 | 2.8 | 3.3 | V | |
| Sleep Current | - | <10 | - | μA (VDD=3.3V) | |
| Optical | Luminance | 400 | 450 | - | cd/m² (LED=40mA) | 
| Contrast Ratio | 800 | 1000 | - | (Dark Room) | |
| Response Time (GtG) | - | 30 | 35 | ms (25°C) | |
| Reliability | ESD Protection | ±4kV | ±8kV | - | (IEC 61000-4-2) | 
| Vibration Resistance | - | - | 1.2 | Grms (10–55Hz) | |
| LED Lifespan (L70) | - | 25k | - | Hours (Ta=25°C) | 
Competitive Advantages
Zero-Code Drivers: Arduino/STM32 HAL libraries reduce development time by 2 weeks.
Dynamic Power Control: PWM dimming (100Hz–1KHz) cuts standby power 37% vs. competitors.
Chemical-Resistant Surface: Withstands disinfectants (EN 60601-1 compliant).
Anti-Shock Design: 30.59×32.98mm housing with mounting holes.
Circular Pixel Optimization: Dedicated γ-correction (ΔE<2.5 at edges).
85° Omni-Directional Viewing: CR>10 at 12/3/6/9 o’clock positions.
| Industry | Use Case | Key Value | 
|---|---|---|
| Medical | Portable pulse oximeters | Cold-start at -20°C, antimicrobial surface | 
| Industrial IoT | Smart meter dashboards | EMI-immune SPI (stable @ 30V/m) | 
| Consumer | Premium fitness trackers | 0.5mm bezel, 400nit sunlight visibility | 
▸ Safety: EN 62368-1 (CE), FCC Part 15B
 ▸ Materials: RoHS 2011/65/EU, REACH Annex XVII
 ▸ Packaging: ISTA 1A shock-proof, ≤0.5% defect rate (AQL 0.65)
Why Engineers Choose SFTO109JY-7337AN
*"Solves circular display integration in medical wearables with precision SPI control and -20°C cold-start capability. GC9A01 driver eliminates external RAM costs."*
 – Embedded Systems Design Team, Munich
Mechanical Outline Dimensions

General Specification
| Items | Specification | Unit | 
| Drive element | a-Si TFT | - | 
| LCM outline size | 30.59 (H) x 32.98 (V) | mm | 
| Active area | 27.79 (H) x 27.79 (V) | mm | 
| Number of pixels | 240(H)X240(V) | pixels | 
| Pixel arrangement | RGB Vertical stripe | - | 
| Pixel Pitch | 0.1158x 0.1158 | mm | 
| Display color | 262k | color | 
| Viewing direction | ALL | - | 
| Controller / Driver | GC9A01 | - | 
| Data interface | SPI 4W | - | 
| Backlight | 2 White LED | - | 
| Weight | TBD | g | 
Absolute Maximum Ratings
| Characteristics | Symbol | Min. | Typ | Max. | Uni t | 
| Supply Voltage | IOVCC | -0.3 | - | 4.6 | V | 
| VCI | -0.3 | - | 4.6 | V | |
| TFT Gate On voltage | VGH | -0.3 | - | 27 | V | 
| TFT Gate Off voltage | VGL | -0.3 | - | 27 | V | 
| Backlight Forward Current | IF | - | 40 | mA | |
| Operating Temperature | TOPR | -20 | +70 | °C | |
| Storage Temperature | TSTG | -30 | +80 | °C | |
| Humidity | RH | - | 90 | % | 
DC Characteristics
| Characteristics | Sym bol | Min. | Typ. | Max. | Unit | Note | 
| Power Supply Voltage 1 | IOVC C | 1.65 | 1.8 | 3.3 | V | |
| Power Supply Voltage 2 | VCI | 2.5 | 2.8 | 3.3 | V | |
| Gate Driver High Voltage | VGH | 12 | - | 13 | V | |
| Gate Driver Low Voltage | VGL | -11 | - | -18 | V | |
| 
 Current Consumption | IDD | - | TBD | - | mA | Normal mode | 
| IDD-SL EEP | TBD | uA | Sleep mode | |||
| Input voltage “L” Level | VIL | GND | - | 0.3IOVCC | V | IOVCC= 1.65~ 3.3 | 
| Input voltage “H” Level | VIH | 0.7IOVCC | - | IOVCC | V | |
| Output voltage “L” Level | VoL | GND | - | 0.2IOVCC | V | IOL= 1mA | 
| Output voltage “H” Level | VoH | 0.8IOVCC | - | IOVCC | V | IOH=-1mA | 
Backlight Unit Characteristics
| Characteristics | Symbol | Condition | Min. | Type | Max. | Unit | 
| Forward Voltage | Vf | IL=40mA | - | 2.8 | 3.0 | V | 
| Forward current | IL | - | 40 | - | mA | |
| Luminance | Lv | IL=40mA | - | 450 | -- | cd/m2 | 
| LED life time | - | IL=40mA | 20,000 | 25,000 | -- | Hr | 
Product Image


|   | 
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