WO1602J is a 2.26-inch 16x2 VATN COG LCD display featuring 16 characters per line across two lines, with a 5x8 dot matrix per character. The module uses a Chip-on-Glass (COG) structure and a negative transmissive VATN LCD, providing a black background, high contrast, and wide viewing angles. It is equipped with a white LED backlight.

The display measures 74.2 x 25.2 x 6.3 mm, with a viewing area of 61.0 x 15.1 mm and an active area of 56.2 x 11.5 mm. It incorporates the ST7028-1A controller IC and supports an I2C interface. The module operates with a typical 3.3V logic supply (3.0V to 3.6V), with a 1/17 duty cycle and 1/5 bias. Its operating temperature range is -20°C to +70°C, and its storage temperature range is -30°C to +80°C.

The WO1602J VATN LCD shares the same 74.2 x 25.2 mm outline dimensions and metal pinout configuration as the WO1602G COG LCD. The module uses pin connections on the glass panel, with the LED backlight A/K pins positioned along the side. This mechanical configuration allows WO1602J to be considered as a replacement option for WO1602G, subject to verification of the electrical and system requirements.

The WO1602J also uses a dual-LED-chip backlight design to increase backlight brightness. Its negative-mode VATN display characteristics make it suitable for equipment requiring clearly visible characters and status information against a dark background.