NHD-0420CW-AY3

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The NHD-0420CW-AY3 LCD Character and Numeric Display Module is an efficient and cost-effective solution for applications that require a small footprint and reliable performance. This module offers a crisp resolution of 8x2 characters, making it ideal for text and numeric displays. The module features a wide range of features such as automatic adjustments, contrast control and a backlight to suit a variety of applications.

Application Field

The NHD-0420CW-AY3 is suitable for a variety of applications such as industrial and medical instrumentation, general consumer electronics, home automation devices and many more. The module’s low power consumption, wide operating temperature range (0 to +50°C) and bright backlight ensure optimal operation performance in a range of conditions. It can also be used for data communications and control systems, such as for two-way radio communications, as it supports a wide range of connection protocols, including TTL Serial, RS-232, and I2C.

The module\'s small size, light weight and wide viewing angle make it an ideal solution for small and medium-sized displays, including those used in portable handheld devices. It is also suitable for use in embedded systems due to its low power consumption and its compatibility with various microcontrollers.

Working Principle

The NHD-0420CW-AY3 is a passive matrix based LCD display module. This means that it uses electrical charges to form dots on the screen. This is done by applying voltage to each row and column of the display. The electrical charge then forms a dot at the intersection of the row and column corresponding to the required pixel.

The module also has a backlight for optimal illumination. The backlight is composed of two LEDs: one red and one white. The LEDs are arranged such that when the module is powered, the white LED lights up the entire screen, while the red LED is used to make finer adjustments to the brightness and contrast of the display. This allows the user to make adjustments to the display brightness, contrast and colour balance to suit their ideal viewing conditions.

The module also features a number of power saving features that enable it to operate in low power modes, such as sleep mode, standby mode and power-up modes. The sleep mode is activated when the power is turned off, whereas the standby mode is activated when the power is still operating but the display is inactive. This ensures that the module does not draw unnecessary power when not in use, and helps to extend the overall operating life of the device.

Conclusion

The NHD-0420CW-AY3 Character and Numeric Display Module is an ideal choice for applications that require a small footprint and reliable performance. Its low power consumption, wide operating temperature range, wide viewing angle and bright backlight make it suitable for use in a variety of applications, from industrial and medical instrumentation to embedded systems. Its built-in power saving features also help to extend the overall operating life of the device. The module is an efficient and cost-effective solution for display applications.

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