EP1075686A1 - Flexible und tastbare matrixanzeigevorrichtung - Google Patents

Flexible und tastbare matrixanzeigevorrichtung

Info

Publication number
EP1075686A1
EP1075686A1 EP99919311A EP99919311A EP1075686A1 EP 1075686 A1 EP1075686 A1 EP 1075686A1 EP 99919311 A EP99919311 A EP 99919311A EP 99919311 A EP99919311 A EP 99919311A EP 1075686 A1 EP1075686 A1 EP 1075686A1
Authority
EP
European Patent Office
Prior art keywords
nanotubes
screen according
matrix screen
matrix
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99919311A
Other languages
English (en)
French (fr)
Other versions
EP1075686B1 (de
Inventor
Jean-Chrétien Favreau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9805471A external-priority patent/FR2778263B1/fr
Application filed by Individual filed Critical Individual
Publication of EP1075686A1 publication Critical patent/EP1075686A1/de
Application granted granted Critical
Publication of EP1075686B1 publication Critical patent/EP1075686B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to tactile matrix screens and, more particularly, such screens produced by using a plurality of nanotubes.
  • the cathode screens are heavy and bulky, and have a high radiation harmful to the user.
  • Liquid crystal or plasma screens are smaller, but they are very fragile and do not have a very high brightness.
  • flat screens with field effect remain very expensive due to manufacturing
  • the fact that the input device is usually separate from the display means leads, with computer means, to a disjunction between the grabbing hand and the gaze that controls, unlike a traced on paper where the hand and the eye operate simultaneously in the same place.
  • touch screens have been developed allowing, by pointing a finger or a stylus on a screen, to control a computer.
  • these systems remain cumbersome and do not allow very good resolution, for example when entering a drawing or text using a stylus.
  • some flat panel displays do not tolerate even minimal local pressure from a finger or stylus.
  • the present invention aims to overcome the aforementioned drawbacks by determining a flexible matrix screen and light touch allowing precise input.
  • the invention uses a plurality of nanotubes.
  • nanotubes are tubes formed of carbonaceous sheets arranged in concentric hollow cylinders and discovered in 1991 by Sumio Lijima.
  • a nanotube is a polymer composed only of carbon and it is a periodic unidirectional crystal.
  • the primary object of the present invention is to determine a matrix touch screen not having the aforementioned drawbacks.
  • Another object of the invention is to determine such a very thin touch matrix screen which is flexible and not very fragile.
  • a matrix touch screen for the capture and display in color of data comprising a plurality of carbon nanotubes determining a plurality of picture elements and a plurality of picture elements. capture.
  • this tactile matrix screen is constituted by a dot matrix each comprising an image element and an input element, each image element being constituted by an end of at least three nanotubes parallel to each other and emitting each in one of the three fundamental colors, the gripping element being constituted by the end of at least a fourth nanotube.
  • each point is constituted by a plurality of ends of nanotubes of which at least four are made active.
  • the nanotubes of each point are separated and held in position by means of a filling material which is, for example, constituted by a plurality of non-active nanotubes.
  • each image element comprises a multiple of three active nanotubes respectively connected in parallel.
  • each active nanotube of each image element is covered with a phosphor of one of the fundamental colors.
  • Figure 1 is a partial schematic representation and top view of a matrix touch screen according to the invention.
  • Figure 2 is a sectional view of the screen of Figure 1 according to a first embodiment of the invention.
  • Figure 3 is a sectional view of the screen of Figure 1 according to a second embodiment of the invention.
  • the diameter of a nanotube is of the order of twenty nanometers (20 x 10 "9 m), while the elementary pitch of a screen point is of the order of 0.2 millimeter (200 x 10 "Q m).
  • FIG 1 we have partially and schematically shown seen from above, ie seen from the part observed by the user, a corner of a screen 10 according to the invention.
  • This screen 10 comprises a large number of points 12 of substantially, but not necessarily, square shape on one side of approximately 200 ⁇ m.
  • Each point 12 includes an image element and an input element.
  • the image element consists of at least one set of three distinct nanotubes parallel to each other 14, 16, 18, each emitting in one of the fundamental colors used in television or computer screens, namely red , green and blue.
  • each image element of each point 12 comprises a multiple of three active nanotubes respectively connected in parallel.
  • the gripping element consists of a fourth nanotube 20, the visible end of which then functions as the drain of a field effect transistor.
  • the non-visible ends of the nanotubes are either bundled together in a collector 22 and connected to a socket 24 forming a connector for a central unit forming a control member and a detection member (not shown in the Figures ).
  • the active nanotubes 14, 16, 18, 20 of each point 12 are separated and held in position by means of a filling material 26.
  • This filling material 26 is advantageously constituted by a plurality of non-active nanotubes and / or other nanoparticles, for example carbon.
  • a luminescent film 30 is placed on the points 12 facing the user, in particular to protect the latter, while a fabric 32 of i ⁇ . protection is applied on the opposite side.
  • FIG. 3 which shows, also in schematic section, the screen of Figure 1, the nanotubes 14, 16; 14 ', 16 ", etc. are arranged parallel to each other and are not bent.
  • An electrical conductor 34, 34', etc. is connected to each of the nanotubes 14, 16 so as to apply the required electrical voltage to the non-visible end of the nanotubes These conductors are brought back to the connector 24 via the collector 22.
  • a protective fabric 32 is glued to the sheet of conductors 34, 34 ′ on the invisible lower face of the screen 10.
  • each of the active nanotubes 14, 16, etc. is covered with a phosphor 36, 36 'emitting in one of the three fundamental colors as described above.
  • a transparent plastic film 30 covers the screen. This film is electrically isolated from the ends opposite the nanotubes. It is a conductive film connected to a reference potential, for example earth 38, so as to constitute an anode for the plurality of cathodes formed by the nanotubes of the image elements.
  • the nanotubes 14, 16, etc. are generated directly on and in a sheet woven of carbon fibers which is found under the reference 40 in Figure 3, since this sheet acts, then, as the holding office for the nanotubes.
  • a tactile matrix screen 10 is thus obtained which has the abovementioned advantages.
  • Such a screen can easily be produced in all the desired dimensions, for example for a sign or advertising panel, or for a watch face, or a display screen fixed to a plastic card of the smart card type, with possibly 0 a photovoltaic cell allowing an autonomous electrical supply.
  • This screen is not fragile, it is even flexible and can therefore be rolled up on itself during transport.
  • the low electrical power required to operate it allows it to be used in a rather hostile environment.
  • a particular advantage of such a matrix touch screen is that it is possible to use it as a table to place, for example, a plan or a paper document, and to very easily obtain a computer capture of the plan by simply following the lines drawn with a fine stylus or even with your finger .
EP99919311A 1998-04-30 1999-04-30 Flexible und tastbare matrixanzeigevorrichtung Expired - Lifetime EP1075686B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR9805471A FR2778263B1 (fr) 1998-04-30 1998-04-30 Support souple pour la saisie et l'affichage electroniques de donnees numeriques sur une meme surface
FR9805471 1998-04-30
FR9905440A FR2779859B1 (fr) 1998-04-30 1999-04-29 Ecran matriciel tactile
FR9905440 1999-04-29
PCT/FR1999/001029 WO1999057703A1 (fr) 1998-04-30 1999-04-30 Ecran matriciel souple et tactile

Publications (2)

Publication Number Publication Date
EP1075686A1 true EP1075686A1 (de) 2001-02-14
EP1075686B1 EP1075686B1 (de) 2002-03-06

Family

ID=26234301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99919311A Expired - Lifetime EP1075686B1 (de) 1998-04-30 1999-04-30 Flexible und tastbare matrixanzeigevorrichtung

Country Status (11)

Country Link
EP (1) EP1075686B1 (de)
JP (1) JP2002513980A (de)
CN (1) CN1175386C (de)
AT (1) ATE214188T1 (de)
AU (1) AU3713399A (de)
CA (1) CA2332437A1 (de)
DE (1) DE69900983T2 (de)
ES (1) ES2172326T3 (de)
FR (1) FR2779859B1 (de)
PT (1) PT1075686E (de)
WO (1) WO1999057703A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2853985B1 (fr) * 2003-04-19 2005-07-08 Inanov Ecran flexible a microtubes cathodiques
EP1739692A4 (de) * 2004-04-20 2008-03-05 Takiron Co Transparentes leitfähiges formprodukt zur verwendung in berührungstafeln und berührungstafel
KR101404543B1 (ko) 2006-10-30 2014-06-10 삼성디스플레이 주식회사 표시 장치
US9575560B2 (en) 2014-06-03 2017-02-21 Google Inc. Radar-based gesture-recognition through a wearable device
US9588625B2 (en) * 2014-08-15 2017-03-07 Google Inc. Interactive textiles
US10268321B2 (en) 2014-08-15 2019-04-23 Google Llc Interactive textiles within hard objects
US9778749B2 (en) 2014-08-22 2017-10-03 Google Inc. Occluded gesture recognition
US11169988B2 (en) 2014-08-22 2021-11-09 Google Llc Radar recognition-aided search
US9600080B2 (en) 2014-10-02 2017-03-21 Google Inc. Non-line-of-sight radar-based gesture recognition
US10700052B2 (en) 2015-01-12 2020-06-30 Dolby Laboratories Licensing Corporation Pixel tile structures and layouts
KR101889953B1 (ko) * 2015-02-23 2018-08-21 엘지디스플레이 주식회사 측부 구부림 구조를 갖는 무-베젤 표시 패널
CN111522434A (zh) 2015-04-30 2020-08-11 谷歌有限责任公司 用于手势跟踪和识别的基于rf的微运动跟踪
CN107466389B (zh) 2015-04-30 2021-02-12 谷歌有限责任公司 用于确定类型不可知的rf信号表示的方法和装置
US10088908B1 (en) 2015-05-27 2018-10-02 Google Llc Gesture detection and interactions
US10817065B1 (en) 2015-10-06 2020-10-27 Google Llc Gesture recognition using multiple antenna
WO2017192167A1 (en) 2016-05-03 2017-11-09 Google Llc Connecting an electronic component to an interactive textile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997019208A1 (en) * 1995-11-22 1997-05-29 Northwestern University Method of encapsulating a material in a carbon nanotube
GB2321335A (en) * 1997-01-16 1998-07-22 Ibm Display device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9957703A1 *

Also Published As

Publication number Publication date
CA2332437A1 (fr) 1999-11-11
ATE214188T1 (de) 2002-03-15
EP1075686B1 (de) 2002-03-06
CN1175386C (zh) 2004-11-10
AU3713399A (en) 1999-11-23
PT1075686E (pt) 2002-08-30
ES2172326T3 (es) 2002-09-16
FR2779859B1 (fr) 2001-06-22
DE69900983D1 (de) 2002-04-11
WO1999057703A1 (fr) 1999-11-11
CN1299501A (zh) 2001-06-13
FR2779859A1 (fr) 1999-12-17
DE69900983T2 (de) 2002-11-28
JP2002513980A (ja) 2002-05-14

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