CAPACITIVE SENSING ASSEMBLY OF TOUCH PANEL

• US 20100309160A1
• Filed: 06/09/2009
• Published: 12/09/2010
• Est. Priority Date: 06/09/2009
• Status: Abandoned Application

• Current Assignee: Young Fast Optoelectronics Company Limited
• Original Assignee: Young Fast Optoelectronics Company Limited
• Inventors: Lin, Teh-Zheng
• Application Number:
  US12/481,568
• Publication Number:
  US 20100309160A1
• Time in Patent Office: Days
• US Class Current: 345/174
• 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 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• 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 sensing assembly of a touch panel comprises a plurality of transparent X axis traces having a plurality of X axis sensing units; a plurality of transparent Y axis traces having a plurality of connected Y axis sensing units. The Y axis traces are alternatively arranged with the X axis traces so that the X axis sensing units and Y axis sensing units are arranged as a matrix at a working area of a touch panel. Gaps between the X axis traces and Y axis traces are arranged with dummy patterns. Furthermore, a capacitive sensing assembly of a touch panel is provided, which includes a lower substrate; an upper panel; a capacitive sensing layer installed connected the lower substrate and the upper panel. In a working area of a touch panel, the capacitive sensing layer having a plurality of sensing units which are arranged alternatively and gaps between the sensing units are filled with dummy patterns.

Claims

1. A capacitive sensing assembly of a touch panel comprising:

a plurality of transparent X axis traces;

each X axis trace having a plurality of connected X axis sensing units;

a plurality of transparent Y axis traces;

each Y axis trace having a plurality of connected Y axis sensing units;

wherein the Y axis traces being alternatively arranged with the X axis traces so that the X axis sensing units and Y axis sensing units are arranged as a matrix at a working area of a touch panel; and

wherein gaps between the X axis traces and Y axis traces are arranged with dummy patterns.

2. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein the dummy patterns, X axis traces, Y axis traces are arranged on the same plane.

3. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein the dummy patterns and the X axis traces are arranged on the same plane.

4. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein the dummy patterns and the Y axis traces are arranged on the same plane.

5. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein dummy patterns and the X axis traces and/or the Y axis traces are arranged on different planes.

6. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein the dummy patterns, the X axis traces and the Y axis traces are retained with predetermined gaps without connecting to one another.

7. The capacitive sensing assembly of a touch panel as claimed in claim 6, wherein the gap is about 50 μ

m.

8. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein the X axis traces and Y axis traces are made of same transparent conductive thin film.

10. The capacitive sensing assembly of a touch panel as claimed in claim 1, wherein each sensing unit has a triangular shape.

9. A capacitive sensing assembly of a touch panel comprising:

a lower substrate;

an upper panel;

a capacitive sensing layer installed connected the adhering layer and the upper panel;

an adhering layer for connecting the adhering layer and the upper panel as one body;

wherein in a working area of a touch panel, the capacitive sensing layer having a plurality of sensing units which are arranged alternatively and gaps between the sensing units are filled with dummy patterns;

the dummy patterns are insulated to the sensing units and have same or approximately equal transmittance with the sensing units.