Title:
ELECTRONIC BLACKBOARD DEVICE
Document Type and Number:
Japanese Patent JP2009126176
Kind Code:
A
Abstract:
To refer to an electronic blackboard device that can simply alter a background color of a writing sheet screen.
This invention includes a transparent writing sheet, a reading device for reading a descriptive image written on this writing sheet, a sheet panel installed counter to the rear surface of the transparent writing sheet, and a plurality of color sheets freely changeably interposed between the sheet panel and the writing sheet.
Inventors:
TSUKAMOTO ATSUSHI
Application Number:
JP2007329281A
Publication Date:
June 11, 2009
Filing Date:
November 26, 2007
Export Citation:
Assignee:
PLUS VISION CORP
International Classes:
B43L1/04; H04N1/00