144x32 LCD Module COB 2.44-inch - RG14432B - Raystar

144x32 LCD Graphic Display Module COB 2.44-inch (ST7920 IC)

Model No. RG14432B

The RG14432B is a 2.44-inch 144×32 LCD COB graphic display module designed for embedded and industrial applications. It features an ST7920 controller IC, 1/32 duty, LED backlight, and 68-series parallel interface, ensuring stable performance and easy integration. The module also comes with a PCB equipped with screw holes and peripheral circuits, allowing for quick mounting and simplified usage in 144×32 LCD projects.

Built for reliability, the RG14432B operates on a 5V logic supply with a typical current of 2.5 mA. Customers may also select a built-in booster, while the LED backlight can be driven via Pin 15/16 or A.K pin for flexible operation. With a wide operating temperature range (-20°C to +70°C), long LED lifetime, and durable construction, this 144×32 LCD module provides a dependable solution for control panels, instrumentation, and other graphic display applications.

If you need technical support or product quotes for the RG14432B or other 144×32 LCD modules, please feel free to contact our sales team!

Data Source Ref：RG14432B-BIW-V

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General Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
Structure	COB
Size (Diagonal)	2.44	inch
Dot Matrix / Resolution	144 × 32	dots
Module Dimension	80.0 × 36.0 × 13.2 (MAX)	mm
Viewing Area	66.0 × 16.0	mm
Active Area	60.44 × 13.4	mm
Mounting Hole	75.0 × 31.0	mm
Dot / Pixel Size	0.38 × 0.38	mm
Dot / Pixel Pitch	0.42 × 0.42	mm
IC	ST7920
Interface	6800
Power Supply	5V Internal Boost Option
Duty	1/32 Duty Cycle
Chinese Version	Yes
Type	Graphic LCD Display
Feature	LED can driven by PIN15,PIN16 or A,K Same size with RC1602B

68-Series Parallel Interface

Pin No.	Symbol	Level	Description
1	V_SS	0V	GND
2	V_DD	5.0V	Power Supply (+5.0V)
3	VO	-	Contrast adjustment
4	RS	H/L	H/L register select signal
5	R/W	H/L	H/L Read/Write signal
6	E	H/L	Enable signal
7	DB0	H/L	Data bus line
8	DB1	H/L	Data bus line
9	DB2	H/L	Data bus line
10	DB3	H/L	Data bus line
11	DB4	H/L	Data bus line
12	DB5	H/L	Data bus line
13	DB6	H/L	Data bus line
14	DB7	H/L	Data bus line
15	NC	-	No connection
16	NC	-	No connection

Mounting Options with PCB & Screw Holes

144x32 LCD Module COB 2.44-inch - RG14432B Contour Drawing - Raystar

Operating & Storage Temperatures

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	-	+70	℃
Storage Temperature	TST	-30	-	+80	℃
Input Voltage	VIN	-0.3	-	VDD+0.3	V
Supply Voltage For Logic	VDD-VSS	-0.3	-	5.5	V
LCD Driver Voltage	VLCD	-0.3	-	7.0	V

Supply Voltage & Current

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	-	4.5	5.0	5.5	V
Supply Voltage For LCD	V0-VSS	Ta=-20℃ Ta=25℃ Ta=+70℃	- 4.1 3.8	- 4.3 -	5.5 4.5 -	V V V
Input High Volt	VIH	-	0.7 VDD	-	VDD	V
Input Low Volt	VIL	-	-0.3	-	0.6	V
Output High Volt	VOH	-	0.8 VDD	-	VDD	V
Output Low Volt	VOL	-	-	-	0.4	V
Supply Current	IDD	VDD=5.0V	2.0	2.5	3.5	mA