Sharp LJ64ZU51 is a classic 9.4-inch VGA amber electroluminescent (EL) industrial-grade display launched by Sharp in 1992, adopting Sharp's exclusive Thin Film Electroluminescent (TFEL) technology, one of the most reliable solid-state display products in industrial display history. This product adopts a 4:3 standard square screen ratio design with native 640(RGB)×480 VGA resolution and 84PPI pixel density. It features 30cd/m² typical brightness and 80° full viewing angle display, zero flicker, making it less tiring for long-time viewing.
LJ64ZU51 adopts a solid-state self-luminous structure, no backlight required, with excellent vibration resistance, shock resistance and wide temperature operation capability, supporting an operating temperature range of -5°C to +55°C and a storage temperature range of -40°C to +80°C. The signal interface is a 26-pin parallel data interface with 5V (logic) / 24V (drive) dual power supply. The overall dimensions are 246(W)×180(H)×34(D) mm and the weight is about 700g. Although this model has been discontinued for many years, due to its excellent reliability and wide compatibility, it remains a core replacement component for old industrial equipment, medical instruments and military equipment, with stable original inventory supply worldwide.
Solid-state self-luminous structure: Adopts TFEL electroluminescent technology, solid-state structure, no liquid, no backlight, no filament, with extremely high reliability and service life
Zero flicker eye protection: No flicker throughout the brightness range, less tiring for long-time viewing, suitable for 24/7 continuous operation in industrial sites
Extreme environmental adaptability: 10G vibration resistance, 50G shock resistance, -40°C to +80°C storage temperature, perfectly adapting to harsh industrial environments
Full viewing angle display: 80° full viewing angle symmetrical display, uniform color, no viewing angle color shift or brightness decay
Plug-and-play replacement: Standard 26-pin parallel interface, fully compatible with most old industrial equipment, no hardware and software modifications required
| Parameter | Specification |
|---|---|
| Part Number | LJ64ZU51 (Alias: LJ64ZU5L, 1J64ZU51) |
| Brand | Sharp |
| Screen Size | 9.4 inch |
| Panel Type | Thin Film Electroluminescent (TFEL), Solid-State Display |
| Resolution | 640×480 [VGA] |
| Pixel Density | 84 PPI |
| Pixel Format | Rectangle |
| Pixel Pitch | 0.300×0.300 (H×V) mm |
| Active Area | 191.9(W)×143.9(H) mm |
| Brightness | 30 cd/m² (Typical) |
| Contrast Ratio | High Contrast (Amber Grayscale) |
| Display Colors | 16 Grayscale Levels (Amber) |
| Backlight Type | Self-luminous (EL), No Backlight Required |
| Interface Type | Parallel Data Interface, 26 pins Connector |
| Optical Mode | Electroluminescent, Normally Black |
| Best View Direction | Full View (Symmetrical) |
| Viewing Angle | 80°/80°/80°/80° (U/D/L/R, CR≥10) |
| Refresh Rate | 60Hz |
| Input Voltage | 5.0V (Logic) / 24.0V (EL Drive) |
| Power Consumption | Approximately 15W (Typical) |
| Operating Temperature | -5°C ~ +55°C |
| Storage Temperature | -40°C ~ +80°C |
| Vibration Resistance | 10G (10~2000Hz) |
| Shock Resistance | 50G (11ms) |
| Mechanical Dimensions | 246(W)×180(H)×34(D) mm (Max) |
| Weight | Approximately 700g (Typical) |
| Production Status | Discontinued |
| Touch Function | No (Resistive touch customizable) |
| RoHS Compliance | No (Early Product) |
Industrial Automation: Fanuc CNC machine tools, Siemens PLC HMI, Mitsubishi industrial control systems, production line monitoring equipment
Medical Equipment: Legacy patient monitors, ultrasound diagnostic machines, laboratory analytical instruments, medical equipment control panels
Military & Aerospace: Military vehicle dashboards, avionics equipment, shipboard display systems, portable military terminals
Test & Measurement: High-end oscilloscopes, signal generators, spectrum analyzers, data acquisition systems
Other Applications: Bank ATMs, self-service terminals, industrial robot teach pendants, special vehicle display terminals
FAQ:
Q1: Is LJ64ZU51 an LCD display?
A1: No, LJ64ZU51 is an Electroluminescent (EL) display, adopting solid-state self-luminous technology, which is essentially different from LCD. It requires no backlight, has higher reliability and stronger vibration and shock resistance.
Q2: The product has been discontinued, how do you ensure supply?
A2: We have stable global inventory channels and professional supply chain management, which can provide customers with long-term and stable supply services for discontinued models, as well as professional EL display repair and refurbishment services.
Q3: What are the power requirements for this screen?
A3: LJ64ZU51 requires dual power supply: 5V DC power supply for logic circuits and 24V DC power supply for EL drive circuits.
Q4: Can I replace LJ64ZU51 with an LCD display?
A4: Yes, we provide dedicated LCD replacement kits, including adapter boards and mounting brackets, no modification to the original equipment hardware and software required, plug and play.









