2013年8月13日星期二

Full-color OLED display power saving mode

MP3 can play up to 10 hours generally, and the power will generally choose the 7th battery, in order to be placed in a small box, but provides power only 800mAh, that current is not greater than 80mA, or consuming less than 120mW, in a power saving mode, the power consumption can be less than OLED 30mW, accounted for only 25%.
The most special thing is OLED Module luminous place will be used only energy, but the brightness is proportional to the current. Therefore, power saving mode and brightness from the display to proceed; operation when the user does not make a movement, can be used to reduce the current instruction, it is recommended to reduce the brightness half, then after a while the Character LCD Module off, when current is only 5uA .
Displayed content with simple lines based, it is best not to highlight the display. Sometimes _ for aesthetics may require some trade-offs. When the user stops operation, can remove the unnecessary image. Power consumption can be further reduced if the drive voltage and duty cycle becomes adjustable, their relationship with the luminance following formula:. Current is reduced while the relative increase in the duty cycle, NA brightness can be maintained, or you can put the current drop even lower. When the current decreases, the relative operating voltage can also be reduced together, NA power will be less. This power saving mode is very suitable for MP3 applications because the song scrolling display accounted for most of the time, and not need to use the entire screen display song title.

没有评论:

发表评论