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US 2002/0054033 A1Published application
Display device, electronic paper and electronic paper file
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTetsuro Nakamura, Masichiro Tatekawa
Life of this patent
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Abstract
The invention comprises a display sheet, a light guide sheet and a light source provided to at least one side of the light guide sheet. And an electronic paper of the invention has a configuration for color display that the display sheet is made up by laminating respective display sheets for red, green and blue colors.
Claims17
A display device which comprising:
- a display sheet;
- a light guide sheet joined to a surface of the display sheet;
- and
- a light source placed on at least one side of the light guide sheet.
1 more element
An electronic paper which comprising:
- a display sheet using a nonvolatile and reflective liquid crystal;
- a light guide sheet joined to a surface of the display sheet;
- and
- a light source placed on at least one side of the light guide sheet.
1 more element
An electronic paper file comprising an electronic paper and control means,
- wherein the electronic paper comprises:
- a display sheet using a nonvolatile and reflective liquid crystal;
- a light guide sheet joined to a surface of the display sheet;
- and
- a light source placed on at least one side of the light guide sheet,
- and wherein the control means comprises:
- signal sending-receiving means;
- and
- display light emitting control means for sending the display data from the signal sending-receiving means to the electronic paper.
6 more elements
Dependencies are inferred from the claim text.