CAPACITIVE TOUCH PANEL WITH X AND Y AXIS TRACES

• US 20100000803A1
• Filed: 07/03/2008
• Published: 01/07/2010
• Est. Priority Date: 07/03/2008
• Status: Abandoned Application

• Current Assignee: Kai-Ti Yang
• Original Assignee: Kai-Ti Yang
• Inventors: Yang, Kai-Ti
• Application Number:
  US12/168,063
• Publication Number:
  US 20100000803A1
• Time in Patent Office: Days
• US Class Current: 178/18.06
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A capacitive touch panel is made of transparent panel assembled by a substrate layer, a sensing layer, an insulated layer, and a surface layer. A plurality of transparent X and Y axis traces are arranged on the same plane of the sensing layer and the X and Y axis traces intersect each other as a matrix. Induction-spots formed on each X axis trace are connected one by one, while the induction-spots of each Y axis trace are formed separately with gaps. Through holes in pair are formed on the insulated layer respectively to all the abreast induction-spots of each Y axis trace. A conductive wire is arranged above and across the pair of through holes. Both ends of the conductive wire exposed to the through holes respectively are formed as electrical joints. While the insulated layer is arranged above the sensing layer.

Claims

1. An improved structure of a capacitive touch panel comprising:

a substrate layer of a highly transparent insulated thin layer;

a sensing layer of a transparent thin film with well conductivity having a plurality of X axis trace formed in parallel with a fixed interval and a plurality of Y axis trace formed in parallel with a fixed interval;

the X and Y axis traces being formed on the same plane and intersecting each other as a matrix;

wherein a plurality of induction-spot formed on each X axis trace are connected one by one and a plurality of induction-spot on each Y axis trace are formed separately with gaps; and

a front end of each X trace and each Y trace having a joint;

an insulated layer of an transparent insulated thin film;

a plurality of through hole in pairs being formed on the layer corresponding to every two adjacent induction-spots of each Y axis trace;

a conducting wire being arranged above and across the pair of the through hole and electrical joints being formed on both ends of the conducting wire exposed to the through holes; and

a surface layer of a transparent insulated plate;

while assembling, the layer being arranged above the sensing layer to cover and insulate the X and Y axis traces and the electrical joints on the two ends of the conducting wire passing through the through holes to connect the every two abreast induction-spots of each Y axis trace so as all the induction-spot being connected on each Y axis;

each layer mentioned above being glued together as a transparent panel, the front joints of each X and Y axis trace on the sensing layer connecting to a silver conducting wire formed at edges of the panel and conducting to a signal output wire bank;

therefore, an output signal of the touch panel being transferred through the signal output wire bank to a succeeding signal processing circuit.