The KCG057QV1DL-G770 is a 5.7" industrial LCD display panel manufactured by Kyocera, featuring QVGA resolution (320x240) with CCFL backlight and Parallel Data interface. With 60 cd/m² brightness and 55:1 contrast ratio, viewing angle 50/50/20/35, designed for industrial instrumentation, embedded systems, and reliable display applications.
| Brand | Kyocera |
| Model | KCG057QV1DL-G770 |
| Size | 5.7" |
| Resolution | 320×240 |
| Brightness | 60 cd/m² |
| Contrast Ratio | 55:1 |
| Viewing Angle | 50/50/20/35 |
| Display Type | Color |
| Backlight | CCFL |
| 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 exactly does the LVDS transmitter on my host system need to output to drive this “DL” panel?
A1: Your host SoC or FPGA must output an 18-bit color stream (6 bits per RGB channel) using a standard LVDS mapping protocol (typically JEIDA or VESA format). For 320×240 at 60Hz, the pixel clock is very low (around 6.5 MHz to 8 MHz, depending on blanking). The LVDS serializer will convert the parallel TTL data, HSYNC, VSYNC, and DE into a single high-speed differential data pair (usually 3 data channels + 1 clock channel for 18-bit color).
Q2: I am designing a custom adapter board to replace an old TTL panel with this LVDS panel. What cable specifications should I use?
A2: You must use a 100-ohm differential impedance twisted pair or flat flexible cable (FFC) specifically designed for LVDS. A common mistake is reusing old 40-pin TTL ribbon cables. Because LVDS switches at high frequencies, using the wrong cable impedance causes signal reflections, resulting in a “shattered” or completely frozen image. Also, keep the cable length reasonable (under 20cm for internal wiring) unless you use an active LVDS repeater.
Q3: What are the exact power requirements for the “-G770” LED backlight?
A3: Unlike older CCFLs that required AC high voltage, this LED backlight requires regulated low-voltage DC (typically 5V or 12V, check the specific datasheet). The “-G770” generation often uses an external LED driver board rather than having it fully integrated onto the panel’s main flex cable. You must supply the correct DC voltage to this driver board, which then outputs a constant current to the LED string. Do not apply raw voltage directly to the LED pins without current regulation, or you will instantly burn out the LEDs.










