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LJ640U32 Sharp 8.9 inch lcd module 640*400 lcd display panel
LJ640U32 is Sharp classic industrial self-luminous EL monochrome display module, specially developed for harsh vibration workshop and portable field test equipment.
180 cd/m² self-emissive brightness delivers clear green text, multi-line equipment parameter tables and real-time waveform curves under all indoor lighting environments, no reliance on ambient light. Solid-state EL structure has no fragile backlight tube, outstanding anti-shock and anti-vibration performance, long-term stable operation on vibrating CNC lathes, textile machinery and construction portable testers.
Full Technical Specification Table
| Category | Parameter | Typical Specification |
|---|---|---|
| Basic Info | Full Part Number | LJ640U32 |
| Manufacturer | Sharp Japan Industrial EL Series | |
| Screen Size | 8.9 inch, landscape 16:10 | |
| Display Core | Native Resolution | 640 × 400 monochrome graphic, 84 PPI |
| Display Tech | EL Electroluminescent Self-emissive Monochrome (No backlight) | |
| Pixel Arrangement | Rectangular graphic dot matrix | |
| Optical Performance | Active Display Area (AA) | 191.9(W) × 119.9(H) mm |
| Dot Pitch | 0.300 × 0.300 mm | |
| Typical Brightness | 180 cd/m² self-emissive | |
| Static Contrast Ratio | 20:1 high contrast monochrome | |
| Display Color | Single green monochrome (2-level grayscale) | |
| Viewing Angle (CR≥2) | L/R:60°, U/D:50°; Omni-directional readable | |
| Native Refresh Rate | Fixed 60Hz graphic timing | |
| Mechanical Spec | Overall Outline Dimension | 246.0(W) × 158.0(H) × 31.0(D) mm aluminum metal frame |
| Net Weight | ~500g industrial reinforced module | |
| Surface Treatment | Gloss hard coat, 3H scratch-resistant front glass | |
| Electrical Interface | Connector | 16Pin straight TTL parallel CMOS FPC interface |
| Logic Supply Voltage | DC 5.0V logic (VL); DC 12V EL drive voltage (VD) | |
| EL Light Source System | Light Principle | Solid-state phosphor self-emission, zero backlight components |
| EL Rated Lifespan | 50,000 hours to half brightness, no lamp replacement needed | |
| Environmental Rating | Operating Temperature | -5 ℃ ~ +55 ℃ industrial grade |
| Storage Temperature | -40 ℃ ~ +80 ℃ ultra-wide storage range | |
| Humidity | 10% ~ 90% RH non-condensing | |
| Shock/Vibration Resistance | 3G anti-vibration standard, suitable for vibration workshop equipment | |
| Quality & Compliance | Quality Grade | Original Grade A: zero missing dot, no line mura, uniform EL luminous surface |
| Stock Status | In-Stock; full pixel scan + 6h continuous EL aging + wide temp cycling test before shipment | |
| Certification | RoHS compliant, no mercury / CCFL hazardous substances | |
| Touch Matching | Bare EL module only; separate 8.9" 4-wire resistive touch digitizer for optical bonding |
EL self-emissive technology, no CCFL/WLED backlight, eliminate backlight burnout failure, ultra-low long-term maintenance cost
3G high anti-vibration performance, perfect for vibrating workshop automation equipment and portable field testers
Dual power input (5V logic +12V EL drive), integrated drive circuit, no extra inverter board needed
-5℃ ~ +55℃ wide operating temperature, stable cold startup in low-temperature unheated workshops
50,000 hours long luminous lifespan, 24/7 uninterrupted production equipment long-term operation
Classic 640×400 monochrome resolution, ultra-high compatibility with vintage industrial control firmware
Mercury-free solid-state structure, environmental friendly compared with traditional CCFL LCD panels
Ready original spot stock supports fast delivery for old industrial equipment urgent maintenance orders
Replacement monochrome display for vintage CNC lathe, injection molding, textile machinery operation HMI panels
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Spare replacement module for Sharp LJ640U series 8.9-inch self-emissive EL monochrome industrial display
