Devices which support a different card have that format listed. "microSDHC" is the most popular format for external memory cards.the EPUB and/or PDF formats with digital-rights-management (DRM) are supported. Library DRM compatible – Can be used to borrow e-books from public libraries, e.g. Many small e-readers have display diagonal sizes around 150 or 180 mm (6 or 7 in), while some of the large commercially available readers have display sizes around A5 (257 mm (10.1 in)) or A4 size (364 mm (14.3 in)).Ĭommercially available devices sold by maker or designer With these displays, the user is able to bend the e-reader without damaging it and can fold it up to put in a pocket.Įlectronic-paper readers come in various sizes. LG Flex: Electronic paper that allows a flexible screen is still in development.It was acquired by E Ink in December 2012. SiPix: A former competitor to E Ink, which had displays with almost instantaneous page turns.E Ink Carta: E Ink's 4th-generation technology, which has higher contrast and a greater number of different levels of gray than their earlier technology the displays have a pixel density between 212 and 300 ppi.E Ink Triton: E Ink's 3rd-generation technology that featured the ability to show color in the display.A further revision of Pearl is Mobius, which uses flexible plastic in the display. E Ink Pearl: E Ink's 2nd-generation technology, which has higher contrast and a greater number of different levels of gray than their earlier technology.Although "eInk" may be used to talk about all electronic paper displays, "eInk" and "E Ink" are trademarked by E Ink, which provides the majority of the electronic paper displays used in devices. E ink: E Ink Corporation's 1st-generation technology, also known as E Ink Vizplex.With the backlight turned off, all have a similar appearance to "ink on paper" and are readable in bright environments. Some offer a backlight to allow low-light reading. Comparison of screen to paper size: A5 paper, 10.1-inch (257 mm) screen and A4 paperĪll electronic paper types offer lower power consumption and better sunlight contrast than LCDs.
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