20×4 Character LCD
20×4 LCD Module | Negative Mode | White on Black | 2004 Character Display
This is a 20×4 (2004) character LCD module featuring negative display mode with a true black background and crisp white characters. Built with high-contrast technology, it delivers excellent readability in low-light environments and a sleek industrial appearance.
It is fully compatible with the standard ST7066 controller, features a 16-pin parallel MCU interface, supports a wide operating temperature range, and is ideal for industrial controls, instrumentation, and embedded systems.
Description
✅ 20*4 2004 character LCD, negative black & white high contrast screen
✅ Universal ST7066 chip, 16-pin standard parallel interface
✅ Clear reading under low light, industrial wide temperature stability
✅ Excellent compatibility with all mainstream single-chip microcomputers
✅ Stable delivery & cost-effective for mass procurement
FAQ
Q1: Which microcontrollers can this LCD module match?
A: It uses universal ST7066 driver IC, fully compatible with STM32, Arduino, 51 MCU, Raspberry Pi and other mainstream embedded controllers, complete supporting materials are available.
Q2: Is this negative screen more suitable for dark environment use?
A: Yes, the white characters on black background have ultra-high contrast, the reading effect is far better than positive screen in low-light and night scenes.
Q3: Can the module run stably under long-term continuous lighting?
A: It adopts industrial STN material, with low screen attenuation and stable performance, which can support uninterrupted long-time operation.






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