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主标题: Graphic LCD Display Modules — Pixel-Level Control for Instruments, HMI, and Portable Devices
副标题: Dot-matrix monochrome LCD modules in standard and custom resolutions, with high-contrast STN/FSTN options and versatile SPI or parallel interfaces.
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产品概述
Graphic LCD display modules give designers full control over every pixel on the screen — enabling custom graphics, icons, waveforms, charts, and non-standard fonts that character LCD modules cannot display. Relialink manufactures a comprehensive range of graphic LCD modules from 128×64 (the most popular entry-level size) to 320×240, using STN and FSTN display technologies with a selection of proven controller ICs.
Unlike TFT displays, graphic LCD modules are monochrome and do not require complex color processing — making them ideal for battery-powered portable devices, always-on instrument panels, and industrial HMI applications where low power consumption, wide temperature tolerance, and simple firmware integration are priorities. The absence of a continuous backlight requirement (some applications use reflective mode with no backlight at all) extends battery life significantly in portable products.
Our graphic LCD range covers the ST7565, ST7920, RA8835, and other popular controllers, with SPI and parallel interface options to accommodate different microcontroller architectures. FSTN variants offer a distinctive black-on-white or white-on-black appearance with sharper character rendering compared to standard STN — preferred in many industrial and medical applications.
All modules comply with RoHS requirements and are manufactured under ISO 9001:2015 quality management at our Shenzhen facility. Custom resolutions, outline dimensions, and interface configurations are available for OEM projects.
技术特点
- ✓Full Pixel Control: Any graphic, icon, custom font, or waveform can be rendered on the display
- ✓STN and FSTN Options: STN for cost-effective graphic display; FSTN for high-contrast black-on-white appearance preferred in professional instruments
- ✓Wide Controller Support: ST7565, ST7920, UC1701, RA8835, and others — well-supported by open-source graphics libraries
- ✓Low Power Operation: Reflective and transflective modes available — suitable for battery-powered devices without always-on backlight
- ✓SPI and Parallel Interface: SPI for minimum MCU pin usage; parallel for maximum display update speed
规格参数表
| 参数 | 范围 / 选项 |
|---|
|——|———–|
| Display Type | STN, FSTN |
|---|---|
| Resolution | 128×64, 128×128, 160×128, 240×128, 320×240 |
| Interface | SPI (3/4-wire), 6800/8080 Parallel |
| Controller IC | ST7565, ST7920, RA8835, UC1701, NT7538 |
| Backlight | LED (White, Blue, Yellow-Green), optional |
| Viewing Mode | Transmissive, Transflective, Reflective |
| Viewing Direction | 6 o’clock, 12 o’clock |
| Operating Temperature | 0°C to +50°C / -20°C to +70°C / -40°C to +85°C |
| Supply Voltage | 3.3V / 5V |
| Compliance | RoHS, CE |
应用场景
1. Industrial HMI Panels: Graphic LCDs display process data, alarm graphics, and navigation menus in factory automation controllers, drives, and PLCs — where color is unnecessary and monochrome reliability is preferred.
2. Portable Instruments: Handheld multimeters, data loggers, and field calibrators use 128×64 and 128×128 graphic modules for waveform display and measurement readout with low power consumption.
3. Medical Handhelds: Portable patient monitoring devices and diagnostic tools use graphic LCDs for simple user interfaces with long battery life.
4. Weighing & Measurement Equipment: Scales, balances, and analytical instruments use graphic LCDs for clear numeric and graphic data presentation.
5. Access Control & Security Panels: Building access terminals and alarm control panels use graphic LCDs for keypads, status graphics, and user menu navigation.
6. Point-of-Sale Accessories: Customer pole displays and receipt printer interfaces use graphic LCDs for clear customer-facing information.
可选配置
- ✓Custom resolution and outline dimensions
- ✓FSTN display type for high-contrast black-on-white appearance
- ✓Reflective mode (no backlight required) for ultra-low power applications
- ✓Wide temperature range (-40°C to +85°C)
- ✓Custom FPC connector routing
- ✓Backlight color options: white, blue, yellow-green, amber
文档下载
- ✓Datasheet: Graphic LCD Module Datasheet (PDF)
- ✓Drawing: Mechanical Outline Drawing
- ✓Sample Code: Arduino / STM32 / Raspberry Pi initialization example
相关产品
- ✓[Character LCD Modules](/products/character-lcd/)
- ✓[TFT LCD Screens](/products/tft-lcd/)
- ✓[COG LCD Modules](/products/cog-lcd/)
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描述: Sample units available with 1–2 week delivery. MOQ 100 units for production orders.
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FAQ
Q1: What graphics libraries work with your graphic LCD modules? A: Our ST7565 and UC1701-based modules are supported by the U8g2 library for Arduino — one of the most comprehensive graphics libraries for monochrome displays. ST7920-based modules are supported by the u8glib and direct SPI/parallel drivers. We provide sample initialization code with each module.
Q2: Can I display Chinese characters on a graphic LCD? A: Yes, with an appropriate font library. The ST7920 controller has a built-in Chinese character ROM. For other controllers, Chinese fonts can be stored in external flash and rendered via software. Please contact us if you need guidance on Chinese character display support.