EP1075686A1 - Ecran matriciel souple et tactile - Google Patents
Ecran matriciel souple et tactileInfo
- 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
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating 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 .
Description
Claims
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 (fr) | 2001-02-14 |
EP1075686B1 EP1075686B1 (fr) | 2002-03-06 |
Family
ID=26234301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99919311A Expired - Lifetime EP1075686B1 (fr) | 1998-04-30 | 1999-04-30 | Ecran matriciel souple et tactile |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1075686B1 (fr) |
JP (1) | JP2002513980A (fr) |
CN (1) | CN1175386C (fr) |
AT (1) | ATE214188T1 (fr) |
AU (1) | AU3713399A (fr) |
CA (1) | CA2332437A1 (fr) |
DE (1) | DE69900983T2 (fr) |
ES (1) | ES2172326T3 (fr) |
FR (1) | FR2779859B1 (fr) |
PT (1) | PT1075686E (fr) |
WO (1) | WO1999057703A1 (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2853985B1 (fr) * | 2003-04-19 | 2005-07-08 | Inanov | Ecran flexible a microtubes cathodiques |
EP1739692A4 (fr) * | 2004-04-20 | 2008-03-05 | Takiron Co | Produit moulé conducteur transparent à écran tactile et écran tactile |
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 (fr) | 2016-05-03 | 2017-11-09 | Google Llc | Connexion d'un composant électronique à un textile interactif |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997019208A1 (fr) * | 1995-11-22 | 1997-05-29 | Northwestern University | Procede d'encapsulation d'un materiau dans un nanotube en carbone |
GB2321335A (en) * | 1997-01-16 | 1998-07-22 | Ibm | Display device |
-
1999
- 1999-04-29 FR FR9905440A patent/FR2779859B1/fr not_active Expired - Fee Related
- 1999-04-30 AU AU37133/99A patent/AU3713399A/en not_active Abandoned
- 1999-04-30 CA CA002332437A patent/CA2332437A1/fr not_active Abandoned
- 1999-04-30 AT AT99919311T patent/ATE214188T1/de not_active IP Right Cessation
- 1999-04-30 ES ES99919311T patent/ES2172326T3/es not_active Expired - Lifetime
- 1999-04-30 WO PCT/FR1999/001029 patent/WO1999057703A1/fr active IP Right Grant
- 1999-04-30 JP JP2000547601A patent/JP2002513980A/ja active Pending
- 1999-04-30 PT PT99919311T patent/PT1075686E/pt unknown
- 1999-04-30 CN CNB998056146A patent/CN1175386C/zh not_active Expired - Fee Related
- 1999-04-30 DE DE69900983T patent/DE69900983T2/de not_active Expired - Fee Related
- 1999-04-30 EP EP99919311A patent/EP1075686B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9957703A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2332437A1 (fr) | 1999-11-11 |
ATE214188T1 (de) | 2002-03-15 |
EP1075686B1 (fr) | 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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