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This is Original JHD 20×4 character LCD Display with Blue Backlight
It is an original JHD LCD display with blue backlight and high quality.
The screen can be used for color, LCD, led light bar, and so on, it is easy to install and disassemble without special tools.
This module does not require a driver. The LCD screen will display both the character and data.
Black text on the Blue background
Single LED backlight included can be dimmed easily with a resistor or PWM.
Can be fully controlled with only 6 digital lines! (Any analog/digital pins can be used)

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Versatile Compatibility: Works with various DTMF signals, ideal for modems, mobile radios, and more.
User-Friendly Design: Onboard LEDs for clear signal state and adjustable timing for accurate decoding.
Wide Applications: Integrates easily with Arduino boards (UNO, MEGA2560, DUE) for diverse projects.
Central Office Quality: Delivers excellent performance with an internal amplifier for optimal signal reception.
Convenient Input: Accepts both 3.5mm jack and voice input for seamless operation.
Multi-Channel Output: 12 dedicated outputs for phone keys (0-9, *, #) and 4 additional outputs for software control.

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This is Original JHD 20x4 Character LCD Display
20 characters wide and 4 rows: The LCD display can show up to 20 characters per line and has 4 lines, providing ample space for displaying information.
Black text on a green background: The display features black text that contrasts well with a green background, ensuring clear visibility.
Easy interfacing with a microcontroller: The LCD display can be easily connected and controlled by a microcontroller, allowing for seamless integration into various electronic projects.
Low-power consumption: The display consumes low power, making it energy-efficient and suitable for applications where power consumption is a concern.
Economical: The LCD display is cost-effective, making it a budget-friendly option for projects with budget constraints.
Versatile: The display can showcase a wide range of content, including text, numbers, images, and animations, offering versatility in displaying information.