Document
LMT121DNGFWD-NNB
LCD Module User Manual
Prepared by: Song Mao
Date: 2019-06-18
Checked by: Date:
Approved by: Date:
Rev. Descriptions
0.1 Preliminary
URL: www.topwaydisplay.com www.topwaysz.com
Release Date 2019-06-18
Document Name: LMT121DNGFWD-NNB-Manual-Rev0.1.DOC Page: 1 of 13
TOPWAY
LCD Module User Manual
LMT121DNGFWD-NNB
Table of Content
1. General Specification ............................................................................................................ 3 2. Block Diagram........................................................................................................................ 3 3. Input/Output Terminals.......................................................................................................... 4
3.1 K1 TFT Terminals .................................................................................................................................................. 4 3.2 K2 BackLight Terminals ......................................................................................................................................... 4 3.3 K3 Resistive Touch Panel Terminal ....................................................................................................................... 4
4. Absolute Maximum Ratings .................................................................................................. 5 5. Electrical Characteristics ...................................................................................................... 5
5.1 Driving TFT LCD Panel .......................................................................................................................................... 5 5.2 LED Backlight Circuit Characteristics..................................................................................................................... 6 5.3 Power supply voltage Sequence ............................................................................................................................ 6
6. AC Characteristics................................................................................................................. 7
6.1 Input data mapping ................................................................................................................................................ 7 6.2 Timing Characteristics............................................................................................................................................ 8 6.3 Input signal timing chart ......................................................................................................................................... 9
7. Optical Characteristics........................................................................................................ 10 8. Resistive Touch Panel Design Precautions ....................................................................... 12 9. Precautions of using LCD Modules ....................................................