[Shenzhen City Long Day Electronics Co., Ltd.]

16 CHARS × 2LINES
TN STN/YELLOW GREEN
1/16DUTY 1/5BIAS

No. Symbol  Function
1 VSS Ground (0V)
2  VDD   Supply Voltage for Logic (+5V or +2.7V)
3 VO Contrast Adjustment
4 RS Data/Instruction Select
5 R/W Read/Write Select
6 E Enable Signal
7~14  DB0~ DB7   Data Bus 
15  LED_A   LED Power Supply + (5V)
16  LED_K   LED Power Supply - (0V)