Document
LM32019EFW
LCD Module User Manual
Prepared by: Yang Lin
Date: 2009-06-12
Checked by: Date:
Approved by: Date:
Rev.
0.1 0.2
Descriptions
New release Update Backlight Characteristics
URL: www.topwaydisplay.com www.topwaysz.com
Release Date 2008-06-19 2009-06-12
Document Name: LM32019EFW-Manual-Rev0.2 Page: 1 of 11
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Table of Content
LCD Module User Manual
LM32019EFW
1. Basic Specifications................................................................................................................ 3
1.1 Display Specifications............................................................................................................................ 3 1.2 Mechanical Specifications ..................................................................................................................... 3 1.3 Block Diagram ....................................................................................................................................... 3 1.4 Terminal Functions ................................................................................................................................ 4 2. Absolute Maximum Ratings.................................................................................................... 5
3. Electrical Characteristics........................................................................................................ 5
3.1 DC Characteristics................................................................................................................................. 5 3.2 LED Backlight Circuit Characteristics .................................................................................................... 5 3.3 AC Characteristics ................................................................................................................................. 6 3.4 Reset Timing.......................................................................................................................................... 7 4. Function Specifications .......................................................................................................... 8
4.1 Adjusting the Display Contrast .............................................................................................................. 8 4.2 Resetting the LCD module..................................................................................................................... 8 4.4 Display Pixel Map .................................................................................................................................. 8 4.5 Command Summary.............................................................................................................................. 9 4.6 Initialization Setting Example............................................................................................................... 10 5. Design and Handling Precaution ......................................................................................... 11
URL: www.topwaydisplay.com www.topwaysz.com
Document Name: LM32019EFW-Manual-Rev0.2 Page: 2 of 11
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LCD Module User Manual
1. Basic Specifications
1.1 Display Specifications
1) LCD Display Mode 2) Display Color
3) Viewing Angle 4) Driving Method 5) Backlight
: STN, Negative, Transmissive : Display Data = “1” : Light Gray (*1) : Display Data = “0” : Dark Blue (*2) : 12 H : 1/240 duty, 1/14 bias : White LED backlight
Note: *1. Color tone may slightly change by Temperature and Driving Condition. *2. The Color is defined as the inactive / background color
1.2 Mechanical Specifications
1) Outline Dimension
: 159.0 x 107.8 x 11.0 MAX. see attached Outline Drawing for details
1.3 Block Diagram
BLA BLK
Backlight Circuit
LM32019EFW
COM1 :
COM240
320 x 240 pixels LCD Panel
COM Driver
SEG1 :
SEG160 SEG161
: SEG320
VSS VDD V0、VOUT
/WR, /RD, /CS, A0, /RES DB0~DB7
Power & Booster
Circuit
SEG Driver
SEG Driver
S1D13700 or equivalent
URL: www.topwaydisplay.com www.topwaysz.com
Document Name: LM32019EFW-Manual-Rev0.2 Page: 3 of 11
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LCD Module User Manual
LM32019EFW
1.4 Terminal Functions
Pin No.
1 2 3 4 5 6
7
8
9 : 16 17 18 19 20 note: *1.
Pin Name VSS VDD
V0 /WR /RD /CS
A0
/RES
DB0 :
DB7 /WAIT VOUT BLA BLK
I/O Power Power Input Input Input Input
Input
Input
I/O
Descriptions
0V Power Supply, GND Positive Power Supply LCD Contrast Reference Input Write enable input, active LOW Read enable input, active LOW Chip Select Signal
/CS=LOW: Data IO is enabled
Data Type Select
A0=H: command write, display data or cursor add read A0=L: status flag read, display data or parameter write
Reset Signal:
/RES = L, Reset the LCD Module /RES = H, Normal Running
8-bit bi-directional data bus
Output Power Power Power
Wait signal (*1) Power Booster Output for V0 Positive Power Supply for LED backlight Negative Power Supply for LED backlight
If there is no read write activity, /WAIT will be in HZ state.
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