KG057QV1CA-G00 is a 5.7’’ diagonal display panel from Kyocera, designed primarily for industrial and professional applications. It uses TFT-LCD display technology with a standard QVGA resolution, delivering clear and intuitive visual information. The panel features well-balanced brightness and contrast,making it suitable for indoor and general industrial environments, while also allowing screen content to be easily viewed from different angles.
In terms of interface options, the KG057QV1CA-G00 supports an RGB parallel interface depending on the specific configuration, enabling direct connection to mainstream display controllers or MCU/MPU platforms. The backlight typically uses LED technology, offering stable brightness and long operating life, and supports PWM or voltage-based dimming. This allows flexible brightness control based on ambient lighting conditions or power consumption requirements.
Combining clear image quality with strong environmental adaptability, the KG057QV1CA-G00 is well suited for industrial control terminals, medical equipment, human–machine interfaces (HMI), and various embedded systems.
KG057QV1CA-G00 Technical Specs
This section outlines the key technical specifications of the KG057QV1CA-G00 display module, such as screen size, resolution, color depth, and interface type. For more detailed parameters, please refer to the KG057QV1CA-G00 datasheet.
Parameter | Value |
Brand | |
Model | KG057QV1CA-G00 |
Size | 5.7" |
Composition | LCM |
Resolution | 320×240, QVGA 70PPI |
Luminance | 220 cd/m² (Typ.) |
Contrast Ratio | 10:1 (Typ.) (TM) |
Viewangle | 45/45/20/45 |
Color Depth | Monochrome |
Light Source | CCFL [1 pcs] , 58K hours , Optional |
Interface Type | Parallel Data (1ch, 4-bit) , 20 pins Connector |
Active Area | 119.4(W)×90.6(H) mm |
Pixel Format | Rectangle |
Frame Rate | 75Hz |
Touchscreen | Without |
Voltage Supply | 3.3/5.0V (Typ.)(VDD) |
Weight | 175g |
Outline Size | 144(H)×104.8(V) ×13.2(D) mm |
Max Ratings | Operating Temperature: 0 ~ 60 °C ; Storage Temperature: -20 ~ 60 °C |
Refer to KG057QV1CA-G00 Datasheet PDF
KG057QV1CA-G00 Key Features & Benefits
Here is the summary of the key features and benefits for the KG057QV1CA-G00, a 5.7-inch industrial display module from Kyocera:
l Transmissive Display Mode: Optimized for high-contrast visibility in indoor environments where a backlight is the primary light source.
l Built-in Backlight: Utilizes a reliable cold cathode fluorescent lamp (CCFL) to provide consistent screen brightness.
l Standard Data Interface: Uses a parallel data interface, allowing for straightforward integration with most industrial microcontrollers.
l Wide Operating Voltage: Designed to support standard industrial power rails for ease of system power management.
l Consistent Long-Term Performance: Built to Kyocera's strict quality standards, ensuring minimal performance degradation over years of operation.

KG057QV1CA-G00 Reference Design & Interface
For the KG057QV1CA-G00 industrial-grade STN-LCD display module, interface definition and reference design are critical aspects of system integration.
Interface Definition & Data Transmission
For the KG057QV1CA-G00 industrial-grade STN-LCD display module, the interface design plays a critical role in system integration. This model adopts a conventional parallel data interface, which is widely used in industrial control systems due to its simple structure and strong real-time performance. The module typically supports 4-bit or 8-bit parallel data transmission, working together with control signals such as FLM, CP, and LOAD to drive a 320 × 240 resolution display.
In terms of power requirements, the logic supply voltage is generally +3.3 V or +5 V. In addition, an extra negative voltage supply (VEE, typically around −20 V to −25 V) is required for STN-LCD driving. This negative bias voltage is an essential part of the interface design and must be carefully considered during baseboard power planning.
Reference Design Considerations
In the backlight design, the KG057QV1CA-G00 commonly uses a CCFL backlight, which requires an external high-voltage inverter to provide the necessary startup and operating voltage and current. Proper layout and isolation of the backlight circuitry are essential to minimize noise coupling and interference with the logic signals.
From a system stability standpoint, an adjustable V0 contrast control circuit is recommended to compensate for display variations caused by temperature changes. Additionally, placing appropriate series termination resistors on key control signals helps suppress signal ringing and EMI. The refresh rate is typically set between 70 Hz and 80 Hz, providing a good balance between flicker reduction, contrast performance, and overall power consumption.
KG057QV1CA-G00 Application Fields
The KG057QV1CA-G00 industrial-grade LCD display is highly versatile, suitable for a wide range of applications where reliable, clear, and compact visual output is required.
Display for Industrial Machines
The KG057QV1CA-G00 is widely used in various industrial machines to display operating status, parameter settings, and fault information. Its 5.7’’ screen size makes it easy to integrate into equipment panels or control enclosures while supporting clear visibility and long-term stable operation.
l Injection molding machine control panels
l Packaging machine operator interfaces
l Automation equipment display units
Industrial Control & Human–Machine Interface (HMI)
In industrial control systems, this display module is commonly used as the core HMI display for parameter configuration, status monitoring, and alarm indication. The STN-LCD structure is simple and highly reliable, making it suitable for harsh and complex industrial environments.
l PLC operator terminals
l CNC machine HMIs
Measuring Instruments & Chart Recorders
The KG057QV1CA-G00 is well suited for instruments that require continuous display of measurement data and trend information. Its stable display performance and low power consumption make it ideal for long-term measurement and data recording applications.
l Multifunction measuring instruments
l Temperature and pressure recorders
l Industrial chart recorders
Commercial Terminals
In financial and commercial terminals, this display can be used to show operation menus, transaction information, and system prompts. The 5.7-inch size provides good readability while maintaining efficient use of space, making it suitable for embedded terminal designs.
l POS terminals
l Auxiliary displays for ATMs
l Self-service banking terminals
Office Automation Equipment
In office equipment such as copiers and fax machines, the KG057QV1CA-G00 is used to display operating status, setup menus, and error messages. Its mature structure and long service life make it suitable for high-duty-cycle applications.
l Copier
l FAX machines
Medical Device Display Terminals
In medical equipment, this display module is used to present measurement parameters, operating status, and basic waveform information, with an emphasis on stability and clarity.
l Auxiliary displays
l Operator interfaces for diagnostic equipment
ANDE Electronics: Reliable LCD Display Solutions

The KG057QV1CA-G00 LCD offers reliable performance, clear readability, and long-term stability for industrial machinery, measurement instruments, commercial terminals, office automation equipment, and medical devices.
As a professional display supplier, Ande Electronics is committed to providing LCD modules that meet modern application needs.
We offer not only high-quality display products but also reliable technical support and flexible purchasing options. Our experienced engineering team works closely with customers to provide guidance on module selection, integration, and optimization.
Choosing Ande Electronics, engineers and manufacturers gain a partner focused on quality, innovation, and efficiency.

