The LQ057Q3DC03 is a 5.7-inch a-Si TFT-LCD display module designed for compact industrial and embedded applications. It features a 320 × 240 × RGB (QVGA) resolution and supports up to 262,144 colors via an 18-bit digital signal interface (RGB × 6-bit) with four timing signals. Operating with a +3.3V DC supply for panel driving and a dedicated backlight power supply, this module ensures stable image performance and easy integration into low-voltage systems.
With an optimum viewing direction at 12 o'clock, the LQ057Q3DC03 is particularly suitable for control panels and equipment mounted below eye level. The built-in LED backlight driving controller further simplifies system design by reducing external components and improving overall reliability.
LQ057Q3DC03 Key Specs
Next, let’s learn about the key specifications of the LQ057Q3DC03. This will help determine more clearly whether the LCD module meets the specific project requirements in terms of resolution, interface compatibility, and power supply design.
Parameter | Value |
Brand | Sharp |
Model | LQ057Q3DC03 |
Size | 5.7" |
Composition | LCM |
Resolution | 320×240(RGB), QVGA 70PPI |
Luminance | 500 cd/m² (Typ.) |
Contrast Ratio | 350 : 1 (Min.) (TM) |
Viewangle | 80/80/80/65 |
Color Depth | 262K |
Light Source | WLED , 50K hours , With LED Driver |
Interface Type | Parallel RGB (1 ch, 6-bit) , Connector 33 pins |
Active Area | 121.0(W)×92.2(H) mm |
Pixel Format | RGB Vertical Stripe |
Frame Rate | 60Hz |
Touchscreen | Without |
Voltage Supply | 3.3V (Typ.) |
Weight | 210g (Max.) |
Outline Size | 144×104.6×12.8 (H×V×D) |
Max Ratings | Operating Temperature: -30 ~ 80 °C ; Storage Temperature: -30 ~ 80 °C |
Refer to LQ057Q3DC03 Datasheet PDF
LQ057Q3DC03 Structure and Design
The LQ057Q3DC03 is primarily composed of a color TFT-LCD panel, a driver IC, a power supply circuit, and a back light unit. As the centerpiece of visual representation, the color TFT-LCD panel works in tandem with the high-performance driver IC to achieve seamless image output, while the integrated power supply circuit provides stable voltage support for the entire module.
The internal driving circuitry is not only responsible for high-speed signal conversion but is also deeply coupled with the back light unit, optimizing current distribution to enhance luminous efficiency and extend service life. Furthermore, an enhanced electromagnetic shielding layer has been integrated into the module's structure, fully accounting for the compatibility and durability required in industrial-grade applications.
LQ057Q3DC03 Features
The LQ057Q3DC03 LCD offers a range of practical features for industrial and embedded applications:
Wide Operating and Storage Temperature
The module operates reliably within a temperature range of -30°C to 80°C and can be stored safely under the same conditions.
Durable and Reliable Backlight
Equipped with a WLED backlight and built-in LED driver, the display ensures consistent brightness and energy-efficient operation. The backlight has a typical lifespan of ≥50,000 hours, supporting long-term usage.
Vibration Resistance
Designed to withstand mechanical stress, the module tolerates a maximal vibration level of 1.0G (9.8 m/s²), suitable for mobile or machinery-mounted devices.
Viewing Flexibility
The panel supports 180°reverse operation and a glossy surface finish, offering clear visuals from various angles and enhancing image clarity.
Mechanical Compatibility
The LQ057Q3DC03 is mechanically compatible with the LQ057Q3DC12, allowing easy replacement or integration into existing systems.
LQ057Q3DC03 Pros & Cons
After reviewing the key specifications and features of the LQ057Q3DC03, we will now summarize its main pros and cons.
Pros:
l Compact size, suitable for portable devices and small control panels.
l Supports 262,144 colors, delivering clear images and text.
l Built-in backlight driver with integrated LED control, simplifying design and easing integration.
l Easy system integration with an 18-bit digital interface and four timing signals, offering strong compatibility.
Cons:
l Optimal viewing direction is at 12 o’clock; side-angle visibility is limited.
l Lacks consumer-focused features such as touch functionality or anti-glare coating.
LQ057Q3DC03 Typical Applications
The LQ057Q3DC03 LCD panel, with its compact size, clear display, and low power consumption, is widely suited for various embedded and industrial applications. In this section, we will introduce the typical use cases of this module to help engineers better assess its suitability.
1. Handheld Measurement and Control Devices
This screen is suitable for portable industrial instruments, testing terminals, or on-site data acquisition devices, providing real-time display of measurement data, sensor readings, or control menus.
l Environmental monitors
l Handheld gas detectors
l Portable multifunction testers
2. Industrial Control Panels and PLC Displays
In factory automation systems or production line control cabinets, the 5.7-inch screen can display process parameters, equipment status, and alarm information, enabling operators to monitor and manage operations efficiently.
l Small PLC control cabinets
l Pump station panels
l Packaging machine display interfaces
3. Medical and Laboratory Equipment
The compact, high-precision display is ideal for medical testing or laboratory instruments, showing experimental data, operation instructions, or result analysis.
l Blood analyzers
l Digital microscope displays
l Portable ECG machines
4. Embedded Portable Devices and Instruments
The LQ057Q3DC03 can be used in various embedded terminals or smart instruments to display status information, operation menus, or graphical interfaces.
l Industrial robot hand controllers
l Smart electricity meters
l Logistics sorting terminals
LQ057Q3DC03 Manufacturer
Sharp is a globally recognized electronics and display technology company with decades of experience in the research, development, and mass production of LCD panels. As one of the leading manufacturers in the TFT-LCD field, Sharp has deep technical expertise and reliable supply capabilities in the small- to medium-sized display market. Its products are widely used in industrial control, consumer electronics, medical devices, and embedded systems.
LQ057Q3DC03 Handling & Usage Precautions
1. Always turn off the power supply when connecting or disconnecting the cable.
2. Avoid applying excessive force when inserting FFC/FPC.
3. Ensure the enclosure design allows module installation without twisting or warping.
4. The front polarizer is fragile; avoid scratching it.
5. Wipe off any water drops on the panel immediately to prevent discoloration or spots.
6. If the panel surface is dirty, gently clean it with absorbent cotton or a soft cloth.
7. The module is made of glass; handle carefully to prevent breakage from drops or impacts.
8. CMOS LSI is used inside the module; take precautions against static electricity and ensure grounding when handling.
9. The module’s rear has PCBs; handle carefully to avoid stress.
10. A protective film covers the module surface; peel it off slowly before use while taking static precautions.
11. Use an ionized air blower or nitrogen gun to remove dust from the polarizer.
12. Wear anti-static shoes, clothing, gloves, and grounding straps when operating in the environment.
13. Remove static charges with an ionized blower and peel off the protective film at a constant speed (recommended ≥2 seconds).
14. If attaching a protective board, be careful of optical interface edges that may affect display quality.
15. Avoid long-term exposure to direct sunlight to protect the module from UV damage.
16. Connect the module bezel to GND to improve resistance to EMI and external noise.
17. Long-term storage in oxidizing or reducing gas environments may cause corrosion or discoloration of the module.
18. If the panel breaks, liquid crystal may leak; rinse immediately if it enters eyes or mouth.
19. Do not disassemble the module, as it may cause permanent damage.
20. Do not remove the original fixed tape or insulating tape on the module (except the protective film).
ANDE Electronics: Reliable LCD Display Solutions
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, then engineers and manufacturers will gain a partner focused on quality, innovation, and efficiency.
