02-17-2016, 04:36 AM
Hi Jean Paul,
- [Q1] Should I turn off EPD between each update or it's okay to keep it energized for a long period ?
[A1] It's okay you keep the display energized for a long period, just the COG keeps consuming few energy that less than display refreshing.
Please do not run the power on stage again. You will just need to send next image pattern.
- [Q2] In the code sent , what is the purpose of ( / * set scan line off ( extra arrangement for partial update)) ? After send all data and scan byte the data is resent and scan byte is left zero ?
[A2] This comment was described in the Partial update code for G2 COG only. The G2 COG doesn't reset the scan lines to default level. Without this code snippet, your partial update still works. There will have decay phenomenon at the edge of horizontal lines after serval partial updates without changing the pixel data. I am attaching the effect for your reference. The code snippet is to resolve this issue.