LK202-25-R

Character Size:	5.55mm H x 3.20mm W
Background Color:	Black
Text Color:	Red
Operating Temperature:	0°C ~ 50°C
Interface:	I²C, RS-232, TTL
Dot Size:	0.60mm W x 0.65mm H
Voltage - Supply:	4.75 V ~ 5.25 V
Backlight:	LED - Red
Viewing Area:	73.50mm L x 11.50mm W
Outline L x W x H:	116.00mm x 37.00mm x 28.69mm
Series:	--
Display Mode:	Transmissive
Display Type:	LCD - Color
Character Format:	5 x 8 Dots
Display Format:	20 x 2
Moisture Sensitivity Level (MSL):	--
Number of Characters:	40
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Introduction to LK202-25-R

The LK202-25-R is a display module for character and numeric information display. In the field of display modules, it is categorized under LCD, OLED Character and Numeric. This LCD display modules come with 80 columns (or characters) of 5x7 dot matrix format. The size of each character is 14.8 x 8.3 mm. The display module also provides a built-in timer to facilitate auto-refresh by scanning the contents of the display buffer.

Application of LK202-25-R

The LK202-25-R can be used in a variety of applications due to its optimal size-to-detailed ratio and its light weight. For example, it can used in automotive instrumentation and dashboards, medical equipment and instruments, commercial temperature and humidity systems, industrial weighing scales and indicators, gaming machines, financial transaction systems, information kiosks and many other product applications.

Working Principle of LK202-25-R

The LK202-25-R takes user data from an MCU (microcontroller unit) and converts it into a suitable driver signal to be used for refreshing the display. This driver signal is made of multiple bitlines, which are arranged according to the 5x7 dot matrix format to represent the characters and symbols to be displayed. The driver signal is then used to power the display (e.g. a 5V power supply) in order to light up the pixels, which form the characters and symbols on the display.The built-in timer can also be used to set the refresh rate of the display, which is usually 40msec. The displayed data buffers can be modified through an easy communication interface, and these changes can be monitored as they are updated on the display.

Conclusion

The LK202-25-R is a popular display module in the LCD, OLED Character and Numeric category. It has a high-resolution dot matrix format and a built-in timer for auto-refresh. With its light weight, the display module can be used in many applications including automotive, medical, commercial, industrial and gaming. The module can easily receive user data from an MCU and convert it into a suitable driver signal for refreshing the display. It also offers an easy communication interface for updating the display buffer contents.

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