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1. WO2010057059 - TOUCH SCREEN SENSOR

Publication Number WO/2010/057059
Publication Date 20.05.2010
International Application No. PCT/US2009/064483
International Filing Date 13.11.2009
IPC
G06F 3/044 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
CPC
G01R 27/2605
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
26Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; ; Measuring impedance or related variables
2605Measuring capacitance
G06F 2203/04112
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2203Indexing scheme relating to G06F3/00 - G06F3/048
041Indexing scheme relating to G06F3/041 - G06F3/045
04112Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
G06F 3/041
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G06F 3/044
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
G06F 3/0446
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
0446using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
Y10T 29/4913
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
49002Electrical device making
49117Conductor or circuit manufacturing
49124On flat or curved insulated base, e.g., printed circuit, etc.
4913Assembling to base an electrical component, e.g., capacitor, etc.
Applicants
  • ATMEL CORPORATION [US]/[US] (AllExceptUS)
  • PHILIPP, Harald [US]/[GB]
Inventors
  • PHILIPP, Harald
Agents
  • THOMAS, Travis, W.
Priority Data
12/421,69610.04.2009US
61/115,03215.11.2008US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TOUCH SCREEN SENSOR
(FR) DÉTECTEUR D'ÉCRAN TACTILE
Abstract
(EN)
A two-dimensional touch sensor comprising a plurality of electrodes arranged in a mesh pattern on a substrate. Each electrode is formed by interconnected metal traces, the metal being intrinsically opaque, but the metal traces being sufficiently narrow to be practically invisible. The electrodes can be deposited additively via a printing process, for example using copper as the metal. The narrow width of the tracks allows the film to be highly transparent, since the electric field used in capacitive touch screens can be made to propagate with very low metal densities.
(FR)
L'invention porte sur un détecteur tactile bidimensionnel, comprenant une pluralité d'électrodes agencées selon un motif de maillage sur un substrat. Chaque électrode est formée par des tracés métalliques interconnectés, le métal étant intrinsèquement opaque, mais les tracés métalliques étant suffisamment étroits pour être pratiquement invisibles. Les électrodes peuvent être déposées de façon additionnelle par l'intermédiaire d'un procédé d'impression, par exemple à l'aide de cuivre en tant que métal. La largeur étroite des tracés permet au film d'être très transparent, étant donné que le champ électrique utilisé dans les écrans tactiles capacitifs peut être amené à se propager avec de très faibles densités de métal.
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