Static LCD Driver with I2C Interface Application Note
■This application note describes how to create a low power static LCD driver using a Dialog GreenPAK IC.
■This application note comes complete with design files which can be found in the References section.
●Introduction
■Liquid Crystal Displays (LCD) are widely used for commercial and industrial applications because of their good visual properties, low cost and, low power consumption. These properties make the LCD the standard solution for battery-operated devices, like portable instruments, calculators, watches, radios, etc.
■However, to properly control what the LCD shows, the LCD's electronic driver must generate appropriate voltage waveforms to LCD pins. The waveforms should be AC (alternate current) in nature because DC (direct current) voltages will permanently damage the device. The appropriate driver would source these signals to LCD at a minimum of power consumption.
■Two types of LCDs exist, the Static, with only one backplane and one pin for individual segment control and, the Multiplexed, with multiple backplanes and multiple segments connected for each pin.
■This application note will present the design of one static LCD driver with SLG46537V GreenPAK device. The designed LCD driver would drive up to 15 LCD's segments, using a few microamperes of current from the power supply and offer an I2C interface for control.
■In the following sections will be shown:
▲basic knowledge information about LCDs;
▲the SLG46537V GreenPAK LCD driver design in detail;
▲how to drive a seven segment, 4-digit static LCD with two GreenPAK devices;
|
[ LCD ] |
|
|
Application note & Design Guide |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
16-Oct-2018 |
|
|
Revision 1.0 |
|
|
AN-CM-256 |
|
|
1.7 MB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
