Electronic device

Patent metadata

Field	Value
Publication number	US-11460949-B2
Application number	US-202117389386-A
Country	US
Kind code	B2
Filing date	Jul 30, 2021
Priority date	Nov 6, 2020
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

An electronic device, including a substrate, first electrodes, second electrodes, and peripheral wiring pairs, is provided. The substrate has a first peripheral area, a working area, and a second peripheral area arranged along a first direction. The first electrodes are disposed in the working area, structurally separated from each other, and arranged along a second direction. The second electrodes are disposed in the working area, structurally separated from each other, and arranged along the first direction. Each peripheral wiring pair includes first and second peripheral wirings respectively belonging to first and second conductive layers. One of the first and second peripheral wirings is disposed in one of the first and second peripheral areas. Other one of the first and second peripheral wirings is disposed in other one of the first and second peripheral areas. The first and second peripheral wirings are electrically connected to the same first electrode.

First claim

What is claimed is:

1. An electronic device, comprising:
a substrate, having a first peripheral area, a working area, and a second peripheral area, wherein the first peripheral area, the working area, and the second peripheral area are arranged along a first direction, and the working area is located between the first peripheral area and the second peripheral area;
a plurality of first electrodes, disposed in the working area, structurally separated from each other, and arranged along a second direction, wherein the first direction and the second direction are interlaced;
a plurality of second electrodes, disposed in the working area, structurally separated from each other, and arranged along the first direction;
a plurality of peripheral wiring pairs, wherein each of the peripheral wiring pairs comprises a first peripheral wiring and a second peripheral wiring respectively belonging to a first conductive layer and a second conductive layer, one of the first peripheral wiring and the second peripheral wiring is disposed in one of the first peripheral area and the second peripheral area, other one of the first peripheral wiring and the second peripheral wiring is disposed in other one of the first peripheral area and the second peripheral area, and the first peripheral wiring and the second peripheral wiring are electrically connected to a same first electrode; and
an insulating layer, disposed between the first conductive layer and the second conductive layer, wherein
a plurality of first peripheral wirings and a plurality of second peripheral wirings of the peripheral wiring pairs are alternately arranged in the first peripheral area.

2. The electronic device according to claim 1 , wherein another plurality of first peripheral wirings and another plurality of second peripheral wirings of the peripheral wiring pairs are alternately arranged in the second peripheral area.

3. The electronic device according to claim 1 , wherein a first peripheral wiring and a second peripheral wiring of two different peripheral wiring pairs are respectively electrically connected to two adjacent first electrodes and are located in the first peripheral area, and the first peripheral wiring and the second peripheral wiring of the two different peripheral wiring pairs located in the first peripheral area at least partially overlap.

4. The electronic device according to claim 3 , wherein another first peripheral wiring and another second peripheral wiring of the two different peripheral wiring pairs are respectively electrically connected to the two adjacent first electrodes and are located in the second peripheral area, and the another first peripheral wiring and the another second peripheral wiring of the two different peripheral wiring pairs located in the second peripheral area at least partially overlap.

5. The electronic device according to claim 1 , wherein thicknesses of the first peripheral wiring and the second peripheral wiring of each of the peripheral wiring pairs are different.

6. An electronic device, comprising:
a substrate, having a first peripheral area, a working area, and a second peripheral area, wherein the first peripheral area, the working area, and the second peripheral area are arranged along a first direction, and the working area is located between the first peripheral area and the second peripheral area;
a plurality of first electrodes, disposed in the working area, structurally separated from each other, and arranged along a second direction, wherein the first direction and the second direction are interlaced;
a plurality of second electrodes, disposed in the working area, structurally separated from each other, and arranged along the first direction;
a plurality of peripheral wiring pairs, wherein each of the peripheral wiring pairs comprises a first peripheral wiring and a second peripheral wiring respectively belonging to a first conductive layer and a second conductive layer, one of the first peripheral wiring and the second peripheral wiring is disposed in one of the first peripheral area and the second peripheral area, other one of the first peripheral wiring and the second peripheral wiring is disposed in other one of the first peripheral area and the second peripheral area, and the first peripheral wiring and the second peripheral wiring are electrically connected to a same first electrode; and
an insulating layer, disposed between the first conductive layer and the second conductive layer, wherein
a plurality of first peripheral wirings and a plurality of second peripheral wirings of the peripheral wiring pairs are alternately arranged in the first peripheral area, the first electrodes belong to the first conductive layer, the insulating layer is disposed on the first conductive layer and has a plurality of contact windows, and each of the first electrodes is electrically connected to the second peripheral wiring of a corresponding peripheral wiring pair through a contact window of the insulating layer; and the contact windows of the insulating layer comprise a plurality of first contact windows and a plurality of second contact windows respectively located in the first peripheral area and the second peripheral area, the first contact windows correspond to odd-numbered first electrodes, and the second contact windows correspond to even-numbered first electrodes.

7. An electronic device, comprising:
a substrate, having a first peripheral area, a working area, and a second peripheral area, wherein the first peripheral area, the working area, and the second peripheral area are arranged along a first direction, and the working area is located between the first peripheral area and the second peripheral area;
a plurality of first electrodes, disposed in the working area, structurally separated from each other, and arranged along a second direction, wherein the first direction and the second direction are interlaced;
a plurality of second electrodes, disposed in the working area, structurally separated from each other, and arranged along the first direction;
a plurality of peripheral wiring pairs, wherein each of the peripheral wiring pairs comprises a first peripheral wiring and a second peripheral wiring respectively belonging to a first conductive layer and a second conductive layer, one of the first peripheral wiring and the second peripheral wiring is disposed in one of the first peripheral area and the second peripheral area, other one of the first peripheral wiring and the second peripheral wiring is disposed in other one of the first peripheral area and the second peripheral area, and the first peripheral wiring and the second peripheral wiring are electrically connected to a same first electrode; and
an insulating layer, disposed between the first conductive layer and the second conductive layer, wherein
a plurality of first peripheral wirings and a plurality of second peripheral wirings of the peripheral wiring pairs are alternately arranged in the first peripheral area, the substrate further has a third peripheral area located beside the first peripheral area, the working area, and the second peripheral area, the electronic device further comprising:
a plurality of pads, disposed in the third peripheral area, wherein each of the pads comprises a first conductive pattern, a second conductive pattern, and a metal oxide pattern that are stacked in order and electrically connected to each other, and the first conductive pattern and the second conductive pattern are structurally separated from the peripheral wirings; and the first conductive pattern and the second conductive pattern of each of the pads are electrically connected to the first peripheral wiring or the second peripheral wiring of a corresponding peripheral wiring pair through the metal oxide patt

Assignees

• Au Optronics Corp

Inventors

• Huang Chao-Kun
• Jian Bo-Ru
• Huang Kuo-Hsuan

Classifications

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F2203/04112

  Electrode 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 · CPC title

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title