Abstract of JP2004255885
PROBLEM TO BE SOLVED: To provide a white board which can also be used as an image display device.
SOLUTION: The white board is provided with an electronic paper 111 and a front plate 125. The electronic paper 111 continues to display the image on display even after the supply of power is ceased, enabling the entire display area to be in a mono-color state without patterns. The front plate 125 is superimposed on the display surface of the electronic paper 111 and permits visible light to pass therethrough, enabling a display on the front surface certain information (written or drawn) by using the ink and to wipe the ink adhered onto the front surface with the aid of an eraser (erasing the displayed information thereon).
COPYRIGHT: (C)2004,JPO&NCIPI
]]>strage element(Type2)http://part2.exblog.jp/1643033/2006-04-06T17:11:00+09:002006-05-09T10:01:00+09:002006-04-06T17:11:27+09:00hatsumeiya2strage element
1.This document has been translated by computer. So the translation may not reflect the original precisely.
2.**** shows the word which can not be translated.
3.In the drawings, any words are not translated.
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Application number:JP,2005-371606
Publication number:JP,2006-092746,A
The storage element 40 shown in drawing 7 is equipped with the electric-field response component 41, an insulating layer 42, the 1st electrode 43, the 2nd electrode 44, and the 3rd electrode 45.
The electric-field response component 41 answers electric field, and is expanded and contracted.
Bay bending is possible for the electric-field response component 41 to the 2nd electrode 44 side.
Bay bending is possible for the electric-field response component 41 to the 3rd electrode 45 side.
The electric-field response component 41 is stood and formed in the abbreviation perpendicular to the front face of an insulating layer 42.
The electric-field response component 41 consists of two or more carbon nanotubes.
Orientation of most carbon nanotubes which constitute the electric-field response component 41 is carried out in the flexible direction of the electric-field response component 41.
End (it is edge in direction expanded and contracted) 41a of the electric-field response component 41 is being fixed to the insulating layer 42.
Other end (another [ in the direction expanded and contracted ] edge) 41b of the electric-field response component 41 can be displaced freely.
The insulating layer 42 is formed on the substrate (for example, silicon substrate) 46.
The 1st electrode 43 is connected to end 41a of the electric-field response component 41.
The 1st electrode 43 is laid underground and formed in the surface section of an insulating layer 32.
The electric-field response component 41 is set up by the front face of the 1st electrode 43.
The 2nd electrode 44 is made to adjoin the point (other end 41b) of the electric-field response component 41, and is prepared.
The 3rd electrode 45 is made to adjoin the point (other end 41b) of the electric-field response component 41, and is prepared.
While carries out curve deformation, from the electric-field response component 41, a predetermined distance is separated to a side and, as for the 2nd electrode 44, the electric-field response component 41 is formed in it.
From the electric-field response component 41, the 3rd electrode 45 separates a predetermined distance and is prepared in the another side side as for which the electric-field response component 41 carries out curve deformation.
The 2nd electrode 44 and 3rd electrode 45 are arranged about the electric-field response component 41 in the target location, respectively.
The 2nd electrode 44 and 3rd electrode 45 are formed on the insulating layer 42 and the insulating projection formed in one.
The storage element 40 is equipped with the circuit (the easy circuit diagram is shown in drawing 8 .) for generating the potential difference required between the 1st electrode 43 and the 2nd electrode 44 and between the 1st electrode 43 and the 3rd electrode 45.
Drawing 8 is the explanatory view of the storage element 40 shown in drawing 7 of operation.
When the potential difference between the 1st electrode 43 and the 2nd electrode 44 is 0 volt (or under the predetermined potential difference) and the potential difference between the 1st electrode 43 and the 3rd electrode 45 is 0 volt (or under the predetermined potential difference), as shown in drawing 8 (a), will be straight stood by the electric-field response component 41 (an initial state, condition which carried out ** length). In this condition, since the electric-field response component 41 does not touch the 2nd electrode 44, two electrodes 43 and 44 do not flow. This condition is equivalent to the condition of expressing "0" of a digital signal.
When it is beyond the potential difference predetermined in the potential difference between the 1st electrode 43 and the 2nd electrode 44 and the potential difference between the 1st electrode 43 and the 3rd electrode 45 is 0 volt (or under the predetermined potential difference), as shown in drawing 8 (b) Since the tip side (other end 32b side) of the electric-field response component 41 curves to the 2nd electrode 44 side while the electric-field response component 41 answers the electric field between the 1st electrode 43 and the 2nd electrode 44 and develops, the 2nd electrode 44 will be contacted the electric-field response component 41. Consequently, the 1st electrode 43 and 2nd electrode 44 flow mutually. This condition is equivalent to the condition of expressing "1" of a digital signal. Once the electric-field response component 41 deforms (expanding), even if it stops an electric power supply, it will maintain the condition. This condition is maintained by the Van der Waals force between the electric-field response component 41 and the 2nd electrode 44. And if the polarity of two electrodes 43 and 44 is reversed and the electric field of the reverse sense are added, the electric-field response component 41 will return to an early condition, i.e., the condition of drawing 8 (a).
When the potential difference between the 1st electrode 43 and the 2nd electrode 44 is 0 volt (or under the predetermined potential difference) and the potential difference between the 1st electrode 43 and the 3rd electrode 45 is beyond the predetermined potential difference, as shown in drawing 8 (c) Since the tip side (other end 32b side) of the electric-field response component 41 curves to the 3rd electrode 45 side while the electric-field response component 41 answers the electric field between the 1st electrode 43 and the 3rd electrode 45 and develops, the 3rd electrode 45 will be contacted the electric-field response component 41. Consequently, the 1st electrode 43 and 3rd electrode 45 flow mutually. This condition is equivalent to the condition ("x") of expressing the 3rd value (value which is not "1" or [0], either) of a digital signal. Once the electric-field response component 41 deforms (expanding), even if it stops an electric power supply, it will maintain the condition. This condition is maintained by the Van der Waals force between the electric-field response component 41 and the 3rd electrode 45. And if the polarity of two electrodes 44 and 45 is reversed and the electric field of the reverse sense are added, the electric-field response component 41 will return to an early condition, i.e., the condition of drawing 8 (a).
Thus, by the electric field which between the 1st electrode 43 and the 2nd electrode 44, and the 1st electrode 43 and 3rd electrode 45 are made to generate, this storage element 40 can change three conditions (0, 1, x), and moreover, even after stopping an electric power supply, it can hold that condition. Therefore, this storage element 40 serves as tri-state memory of a non-volatile. namely, -- x=-1 -- rubbing -- tri-state memory which can hold three values, "-1", "0", and "1", is realized.
And in order to change a condition (0, 1, x) using the bending (devotion) by the direction parallel to the substrate 46 of the electric-field response component 41 prepared where this storage element 40 is stood to an abbreviation perpendicular to a substrate 46, While being able to simplify structure as compared with the conventional storage element using bending by the direction perpendicular to the substrate side of the electric-field response component over which two insulating projections 52 and 53 (refer to drawing 9 ) were built, the component dimension in a direction parallel to a substrate side can be made small. By this configuration, the degree of integration of a storage element can be raised markedly.
Moreover, since the electric-field responsibility of the electric-field response component 41 serves as fitness (a high speed, high interest profit) when the great portion of CNT which constitutes the electric-field response component 41 is carrying out orientation in the flexible direction of the electric-field response component 41, this storage element 40 can carry out change actuation of three conditions (0, 1, x) of a storage element 40 to a high speed and stability.
In addition, although the above-mentioned explanation of operation explained the case where a storage element 40 was operated as tri-state memory, of course, it is also possible to operate a storage element 40 as 2 condition memory.
When operating a storage element 40 as 2 condition memory, the 3rd electrode 45 can be used as an auxiliary electrode for changing a storage element 40 from the 1st condition (condition of drawing 8 (a)) to the 2nd condition (condition of drawing 8 (b)) certainly.
Moreover, it is also possible to make the condition of drawing 8 (b) into the 1st condition (namely, condition of expressing "0"), and to make the condition of drawing 8 (c) into the 2nd condition (namely, condition of expressing "1"). ]]>https://www.excite.co.jp/https://www.exblog.jp/https://ssl2.excite.co.jp/