Information-processing device
First Claim
Patent Images
1. An information-processing device comprising:
- a field sequential display unit having a back light to supply three-color light and an image display part which forms an image for one frame by a sequential time-sharing display of three subframes corresponding to said three-color light;
a touch panel having an optical guide plate of a transparent material, an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate, a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side, and an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate, a portion of said input pen comprises a transparent material which has a refractive index equal to or higher than that of the transparent material of said optical guide plate.
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Accused Products
Abstract
An information-processing device which comprises a field sequential display unit and a touch panel, said sequential display unit having a back light to supply three-color light and an image display part which forms an image for one frame by the sequential time-sharing display of three subframes corresponding to said three-color light, and said touch panel having an optical guide plate of transparent material, an optical sensor array whose light receiving surface is opposite to the side of said optical guide plate, a lens sheet whose light emitting surface is opposite to that side of said optical guide plate which is opposite to said side, and an illuminating means to illuminate the plane of incidence of said lens sheet.
The information-processing device is superior in resistance to extraneous light, contamination, and mechanical shock and has a touch panel for high-precision display capable of accurately detecting positions and entering information.
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Citations
40 Claims
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1. An information-processing device comprising:
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a field sequential display unit having a back light to supply three-color light and an image display part which forms an image for one frame by a sequential time-sharing display of three subframes corresponding to said three-color light;
a touch panel having an optical guide plate of a transparent material, an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate, a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side, and an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate, a portion of said input pen comprises a transparent material which has a refractive index equal to or higher than that of the transparent material of said optical guide plate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An information-processing device comprising:
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a liquid crystal display unit having at least a back light and an image display part;
a touch panel having an optical guide plate of a transparent material;
an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate;
a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side;
an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate, a portion of said input pen contacting said surface of said optical guide plate comprising a transparent material having a refractive index equal to or higher than that of said optical guide plate. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An information-processing device comprising:
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a liquid crystal display unit having at least a back light and an image display part;
a touch panel having an optical guide plate of a transparent material;
an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate;
a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side;
an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate a tip of said input pen comprising a material which absorbs an illuminating light from said illuminating means. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An information-processing device comprising:
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an EL display panel;
a touch panel having an optical guide plate of a transparent material;
an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate;
a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side;
an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate, a portion of said input pen contacting said surface of said optical guide plate comprising a transparent material having a refractive index equal to or higher than that of said optical guide plate. - View Dependent Claims (23, 24, 25, 26, 27)
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28. An information-processing device comprising:
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an EL display panel;
a touch panel having an optical guide plate of a transparent material;
an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate;
a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side;
an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate, a tip of said input pen comprising a material which absorbs an illuminating light from said illuminating means. - View Dependent Claims (29, 30, 31, 32, 33)
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34. An information-processing device comprising:
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a field sequential display unit having a back light to supply three-color light and an image display part which forms an image for one frame by a sequential time-sharing display of three subframes corresponding to said three-color light;
a touch panel having an optical guide plate of a transparent material, an optical sensor array whose light receiving surface is opposite to a first side of said optical guide plate, a lens sheet whose light emitting surface is opposite to a second side of said optical guide plate which is opposite to said first side, and an illuminating means to illuminate a plane of said lens sheet; and
an input pen to touch a surface of said optical guide plate, a tip of said input pen comprises a material which absorbs an illuminating light from said illuminating means. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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Specification
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Current AssigneeSemiconductor Energy Laboratory Co., Ltd.
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Original AssigneeSemiconductor Energy Laboratory Co., Ltd.
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InventorsHayashi, Keisuke, Koyama, Jun, Yamazaki, Shunpei
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Primary Examiner(s)Liang, Regina
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Application NumberUS09/471,348Time in Patent Office1,307 DaysField of Search345/176, 345/175, 345/179, 345/182, 345/183, 345/102, 345/173, 178/18.09, 178/18.11, 178/19.05US Class Current345/175CPC Class CodesG02F 1/13338 Input devices, e.g. touch p...G02F 1/133622 Colour sequential illuminationG06F 3/0421 by interrupting or reflecti...G06F 3/0488 using a touch-screen or dig...
