Products Description
Our 320×240 COB LCD module is one of our core high-end graphic LCD products, specifically designed for industrial control systems, energy monitoring equipment, and embedded devices.
As a direct LCD manufacturer, Bolong LCD focuses on high-resolution monochrome graphic LCD modules, especially 320x240 COB modules for long lifecycle and high-reliability applications.
Compared with standard displays, this 320×240 graphic LCD module delivers clear data visualization, stable performance, and strong anti-interference capability, making it ideal for demanding environments.
Key Features
In‑house LCD glass
We manufacture the 320×240 glass – not bought from a third party. Full control over quality and lead time.
In‑house PCB design & assembly
Custom PCB shape, SMT, and COB wire bonding all under one roof. No coordination between multiple vendors.
Full customization
Voltage, backlight, interface, PCB shape, firmware, grayscale – you name it.
ISO9001 certified ISO9001
100% electrical test, AOI for PCB assembly, and burn‑in before shipping.
Fast sample lead time
2‑3 weeks for custom PCB samples; 4‑5 weeks for new glass tooling.
Factory‑direct pricing
No middleman markup – you pay the manufacturer price.
Second division for embedded
We also design circuits and write firmware – turnkey smart display solutions available.
Parameter Specification
| Parameter | Value | Custom Option |
|---|---|---|
| Display Format | 320 dots × 240 dots | – |
| Resolution | 320 × 240 pixels | Custom resolutions available |
| Total Pixels | 76,800 | – |
| Aspect Ratio | 4:3 | – |
| Structure | COB | – |
| Controller IC | RA8835 / SED1335 / UC1698U | Your choice |
| Interface | 4‑wire SPI, I²C, 8‑bit parallel | UART / CAN / RS485 |
| Logic Voltage | 3.0V or 5.0V | 2.8V – 5.5V |
| Operating Current | 15mA – 35mA | Low‑power optimization |
| Sleep Mode Current | <1µA | – |
| Duty Cycle | 1/240 | – |
| Module Dimension | 140.0 × 100.0 × 10.0 mm | Fully custom PCB shape |
| View Area | 120.0 × 90.0 mm | Customizable |
| Active Area | 110.0 × 82.0 mm | Customizable |
| Dot Size | 0.32 × 0.32 mm | Adjustable |
| Dot Pitch | 0.36 × 0.36 mm | Adjustable |
| Grayscale Support | 4‑level or 16‑level | Optional |
| LCD Mode | STN Positive, Transflective | FSTN , VA |
| Polarizer | Transflective | Reflective / Transmissive |
| Viewing Direction | 6:00 | 12:00, 3:00, 9:00 |
| Backlight | LED | Custom color, brightness, dimming |
| Operating Temperature | -20℃ to +70℃ | -40℃ to +85℃ |
| Storage Temperature | -30℃ to +80℃ | -40℃ to +85℃ |
| Connection | FPC or pin headers | Terminal blocks, custom cable harness |
| Certifications | RoHS, REACH, CE | Full compliance documentation |
| Warranty | 12 months | Extended available |
Manufacturing strengths
Bolong LCD is a professional manufacturer and factory of 320×240 COB LCD modules, integrating R&D, design, production and sales. Our 320×240 COB module adopts mature COB packaging technology, providing stable performance and clear graphic display for industrial and intelligent electronic devices.With strong manufacturing capacity and advanced production lines, we ensure consistent quality and on-time delivery for global B2B buyers. This module is widely used in power instrumentation, industrial terminals and smart control systems, supporting easy integration and reliable long-term operation.
Our factory
Certifications and Awards
Our Service
Pre-sales
24-hour response to inquiries, free 2D/3D drawings, compatibility verification, sample application
In-sales
Real-time production updates, third-party inspection accepted, full export documents
After-sales
Fast replacement for DOA. Technical Support. Spare Parts Supply. Overseas Service
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