MobileRead Forums - View Single Post - New low-power reflective LCD

pdurrant · 01-18-2014, 11:17 AM

Thanks to The Digital Reader for more news on an interesting new reflective LCD display. While it clearly is initially aimed at watches and similar devices, it can scale to ereader sized displays.

At 3mW to 4mW for a 6" display, a 3.7V, 1.9Ah battery like the one in a Kindle could power the display for 70 days or so. Of course, that's just the display, power is needed for the computer part of an ereader too, but it shows that the display is low power enough to be used in an ereader.

The displays going into production have a reflectance of 32% and a contrast ratio of 20:1

In comparison, eInk's Carta display has a reflectance of 44%, but a contrast ratio of only 15:1.

Japan Display claim 40% reflectance for their large screen prototype.

I really hope some ereader manufacturer produces a device with this display.

01-18-2014, 11:17 AM	#1
pdurrant The Grand Mouse 高貴的老鼠 Posts: 71,515 Karma: 306214458 Join Date: Jul 2007 Location: Norfolk, England Device: Kindle Voyage	New low-power reflective LCD Thanks to The Digital Reader for more news on an interesting new reflective LCD display. While it clearly is initially aimed at watches and similar devices, it can scale to ereader sized displays. At 3mW to 4mW for a 6" display, a 3.7V, 1.9Ah battery like the one in a Kindle could power the display for 70 days or so. Of course, that's just the display, power is needed for the computer part of an ereader too, but it shows that the display is low power enough to be used in an ereader. The displays going into production have a reflectance of 32% and a contrast ratio of 20:1 In comparison, eInk's Carta display has a reflectance of 44%, but a contrast ratio of only 15:1. Japan Display claim 40% reflectance for their large screen prototype. I really hope some ereader manufacturer produces a device with this display.