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Kyocera KG057QVLCD-G400 5.7" Industrial LCD Display Panel 320×240 Color
The KG057QVLCD-G400 is a 5.7" industrial LCD display panel manufactured by Kyocera, featuring QVGA resolution (320x240) with Monochrome display and GR-LED backlight. With 190 cd/m² brightness and 10:1 contrast ratio, viewing angle 45/45/20/40, Parallel Data interface, designed for industrial instrumentation, embedded systems, and reliable display applications.
| Brand | Kyocera |
| Model | KG057QVLCD-G400 |
| Size | 5.7" |
| Resolution | 320×240 |
| Brightness | 190 cd/m² |
| Contrast Ratio | 10:1 |
| Viewing Angle | 45/45/20/40 |
| Display Type | Monochrome |
| Backlight | GR-LED |
| Interface | Parallel Data |
Industrial instrumentation and gauges
Embedded systems displays
Metering equipment
Point-of-sale terminals
Security alarm panels
Small appliance displays
FAQ:
Q1: What improvements does the G400 revision offer over the older G060 and G310 models?
A1: The “-G400” is the most modern iteration of this 5.7" QVGA panel. While the G060 used CCFL and the G310 introduced an early LED backlight, the G400 typically features a highly optimized and integrated LED backlight driver circuit. It often simplifies the connector design by eliminating the need for a separate external inverter/driver board, allowing for direct low-voltage DC input (e.g., 5V or 12V) straight to the panel’s integrated FPC/FFC cable.
Q2: What type of video interface does the KG057QVLCD-G400 use?
A2: Consistent with the KG057 series, this panel uses a Digital TTL/CMOS RGB interface. It accepts 6-bit or 8-bit parallel digital RGB data, along with HSYNC, VSYNC, DOTCLK, and Data Enable (DE) signals. It is designed to be driven directly by an industrial CPU or SoC, and is *not* compatible with analog VGA outputs without a dedicated converter board.
Q3: Can I use the G400 to repair an older machine designed for the G060 (CCFL)?
A3: Mechanically, the 5.7-inch front fit and mounting holes are likely identical, so it will fit the bezel. Electrically, it is a beneficial but required upgrade: you must bypass and remove the old high-voltage CCFL inverter, wiring the low-voltage LED power directly to the new panel. However, you must carefully verify the digital signal timing and the FPC connector pinout, as Kyocera often changes the flat-flex cable layout between major revisions.
