EDMGRB8KJF is an original industrial-grade CSTN color LCD module manufactured by Panasonic. This 7.8-inch panel features native VGA resolution 640(RGB)×480 with standard 4:3 aspect ratio. It adopts transmissive normally black CSTN technology, equipped with single CCFL backlight and 20-pin 8-bit parallel data interface.
This module is integrated with a built-in 4-wire resistive touch screen, ideal for equipment requiring physical touch operation. With stable electrical performance and fixed mechanical mounting holes, it is widely used as original spare display for legacy industrial equipment, portable testing instruments and medical auxiliary devices. All technical parameters are sourced from official Panasonic specifications to guarantee engineering accuracy for product selection and hardware development.
Core Technical Specifications
| Parameter Item | Specification |
|---|
| Model Number | EDMGRB8KJF |
| Manufacturer | Panasonic |
| Diagonal Size | 7.8 Inch |
| Display Technology | CSTN-LCD, Transmissive, Normally Black |
| Native Resolution | 640(RGB) × 480 (VGA), 103 PPI |
| Aspect Ratio | 4:3 |
| Pixel Arrangement | RGB Vertical Stripe |
| Active Area | 157.42 (W) × 118.06 (H) mm |
| Outline Dimension | 195.2 (W) × 137.5 (H) mm |
| Typical Brightness | 60 cd/m² |
| Contrast Ratio | 30:1 (Typ.) |
| Viewing Angle (CR≥1.5) | 45°/45°/30°/20° (L/R/U/D), Optimum viewing: 6 o’clock |
| Refresh Rate | 70 Hz |
| Color Support | Color Display |
| Backlight | Single CCFL Lamp, Lifespan: 10,000 hours, No built-in driver |
| Signal Interface | 8-bit Parallel Data, 20 Pin Connector |
| Touch Function | Integrated 4-wire Resistive Touch Screen |
| Surface Treatment | Clear surface, 2H Hard Coating |
| Supply Voltage | Standard logic voltage per Panasonic datasheet |
| Operating Temperature | 0°C ~ +40°C |
| Storage Temperature | -20°C ~ +60°C |
| Net Weight | ~230g |
Key Advantages
Original Panasonic Industrial Module: Mature legacy mass-production model, standardized mechanical outline and mounting holes, perfect replacement for original equipment screens.
Integrated Resistive Touch: Built-in 4-wire resistive touch panel, supports operation with gloves, suitable for industrial field control scenarios.
Standard Parallel Interface: 20-pin 8-bit parallel bus, compatible with many traditional industrial main controllers and dedicated parallel driver boards.
Stable Structure Design: Pre-drilled mounting holes for easy enclosure integration, widely verified in decades of industrial equipment applications.
Complete Assembly LCM: Backlight, LCD panel and touch screen integrated as one unit, convenient for direct replacement without extra assembly.
Application Scenarios
Legacy Industrial Control HMI & Automation Equipment Replacement
Portable Testing, Measuring & Inspection Instruments
Medical Auxiliary Monitoring Equipment
Industrial Portable Data Terminals
Old-Style Self-service Kiosks & Operator Panels
Embedded System Display Modules
Factory Equipment Operator Touch Terminals
Frequently Asked Questions (FAQ)
Q1: Is EDMGRB8KJF original Panasonic display module?A1: Yes. EDMGRB8KJF is genuine original Panasonic CSTN-LCD LCM. It is widely used as OEM display for classic industrial equipment. We supply Grade A tested panels consistent with official datasheet parameters. Q2: Does this panel come with touch screen?A2: Standard EDMGRB8KJF module integrates built-in 4-wire resistive touch screen, supporting glove operation. Touch controller circuit needs to be matched separately. Q3: What backlight driver is required?A3: The panel uses single CCFL backlight. A matched CCFL inverter board is required. It cannot directly connect LED backlight without hardware modification. Q4: Can I use LVDS or eDP driver boards for this screen?A4: No. It adopts 20-pin 8-bit parallel data interface. LVDS/eDP controllers cannot drive it directly; a dedicated parallel display driver board is required. Q5: Can EDMGRB8KJF interchange with EDMGRB8KHF / EDMGRB8KMF?A5: Similar mechanical dimensions, but signal timing and touch layout have differences. Direct replacement is not recommended; please verify pin definition before installation. Q6: What is the operating temperature range? Can it work outdoors?A6: Standard operating temperature is 0°C ~ +40°C. It is designed for indoor industrial environments and not suitable for outdoor high/low temperature exposure. Q7: What is the difference between CSTN and conventional TFT-LCD?A7: CSTN consumes lower power but features limited contrast and viewing angle compared with TFT. This module is targeted for cost-effective replacement of older generation equipment, not for high-brightness wide-angle visual applications. 
