US 5,339,091 · Granted 1994-08-16
Paperless portable book
A paperless portable electronic book is disclosed which is adapted for use with interchangeably magnetic floppy discs, or the like and comprises reproducing device for reading information from the floppy disc, a display and a battery. Preferentially, the display is a liquid crystal and the battery is an amorphous silicon solar cell.
Patent details
- Publication number
- US 5,339,091
- Filing date
- 1992-10-14
- Grant date
- 1994-08-16
- Assignee
- Semiconductor Energy Laboratory Co., Ltd.
- Inventor(s)
- YAMAZAKI; SHUNPEI, HAMATANI; TOSHIJI
- CPC class
- G11B33/121
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