JPWO2020143430A5

JPWO2020143430A5 -

Info

Publication number: JPWO2020143430A5
Application number: JP2020560904A
Authority: JP
Publication date: 2022-11-18

Description

縁線５２が延びているボンディング領域５１の一側は、タッチセンサの縁線に破断故障が発生する頻度が高い領域である。例示的な本実施例において、第１短絡線７１３及び第２短絡線７２３は、ボンディング領域５１において縁線５２の延在方向に沿ってボンディング領域５１の外側まで延びることができる。第１短絡線７１３及び第２短絡線７２３は、図２に示すように、ボンディング領域５１から上向き方向に沿って延びる。このような設置により、タッチセンサにおける縁線５２が延びるボンディング領域５１の一側のクラック状態を重点的に検出することができる。
図２を参照すると、第１短絡線７１３及び第２短絡線７２３は、それぞれテストピン群の１つのテストピンから始まりボンディング領域５１の外側に延びて、テストピン群の他の１つのテストピンに接続される経路を有する。さらに詳細には、本実施例によれば、第１短絡線７１３及び第２短絡線７２３は、それぞれ互いに平行する２つのトレース（ｔｒａｃｅ）を有する。前記２つのトレースは、それぞれ２つのテストピンに接続される。 One side of the bonding area 51 where the edge line 52 extends is an area where breakage failures in the edge line of the touch sensor frequently occur. In this exemplary embodiment, the first shorting line 713 and the second shorting line 723 can extend outside the bonding area 51 along the extending direction of the edge line 52 in the bonding area 51 . The first shorting line 713 and the second shorting line 723 extend along the upward direction from the bonding area 51, as shown in FIG. With such installation, it is possible to detect a crack state on one side of the bonding area 51 where the edge line 52 extends in the touch sensor.
Referring to FIG. 2, a first shorting line 713 and a second shorting line 723 each start from one test pin of the test pin group and extend outside the bonding area 51 to another test pin of the test pin group. It has a connected path. More specifically, according to this embodiment, the first shunt line 713 and the second shunt line 723 each have two traces parallel to each other. The two traces are connected to two test pins respectively.

タッチセンサを表示モジュールに集積する場合、基板に貼合される必要がある。上記の基板は、タッチセンサの集積方式によって、偏光シート、保護ガラスなどであってもよい。例示的な本実施例において、図３、４に示すように、図３は、本発明に係るタッチセンサの他の例示的な実施例の構造を示す模式図であり、図４は、図３におけるＡ―Ａ線に沿った断面図である。前記タッチセンサ５は、基板８に貼合される。前記基板８には、スロット領域８１が開設されている。前記ボンディング領域５１は、前記スロット領域８１に形成される。タッチセンサ５におけるスロット領域８１に位置し且つボンディング領域５１以外の位置には、フィルム層が何も貼り付けられていない。本実施例において、図４に示したように、スロット領域８１からボンディング領域５１を除去することにより異形状の領域を形成することができる。上記異形状の領域を異形状のスロット領域５３と呼ぶ。フィルム層が貼り付けられていない当該領域を異形状のスロット領域５３と定義する。前記異形状のスロット領域５３は、タッチセンサにクラックが発生した頻度が高い領域である。例示的な本実施例において、前記第１短絡線７１３及び第２短絡線７２３は、前記異形状のスロット領域５３を通過して前記タッチセンサ５と前記基板８との貼合領域まで延びることができる。このような設置により、タッチセンサのボンディング領域５１の周囲にクラックが発生したか否かを検出することができ、異形状のスロット領域５３にクラックが発生したか否かを検出することもできる。 When the touch sensor is integrated in the display module, it needs to be attached to the substrate. The above substrate may be a polarizing sheet, protective glass, etc., depending on the integration method of the touch sensor. In this exemplary embodiment, as shown in FIGS. 3 and 4, FIG. 3 is a schematic diagram showing the structure of another exemplary embodiment of the touch sensor according to the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG. The touch sensor 5 is attached to the substrate 8 . A slot area 81 is formed in the substrate 8 . The bonding area 51 is formed in the slot area 81 . No film layer is attached to the slot region 81 of the touch sensor 5 and to a position other than the bonding region 51 . In this embodiment, as shown in FIG. 4, by removing the bonding area 51 from the slot area 81, an irregular shaped area can be formed. The irregularly shaped region is called an irregularly shaped slot region 53 . The area to which the film layer is not attached is defined as an irregular slot area 53 . The odd-shaped slot region 53 is a region in which cracks frequently occur in the touch sensor. In this exemplary embodiment, the first short-circuit line 713 and the second short-circuit line 723 may pass through the irregular-shaped slot area 53 and extend to the bonding area between the touch sensor 5 and the substrate 8 . can. With such installation, it is possible to detect whether or not a crack has occurred around the bonding area 51 of the touch sensor, and whether or not a crack has occurred in the odd-shaped slot area 53 can also be detected.

例示的な本実施例において、図５に示すように、本発明に係るタッチセンサの他の例示的な実施例の構造を示す模式図である。前記第１短絡線７１３及び前記第２短絡線７２３は、前記エッジ領域５５の全体まで延びることができる。すなわち、第１短絡線７１３及び第２短絡線７２３は、タッチ領域を完全に囲むようになる。タッチセンサの周囲の任意の位置にクラックが発生して第１短絡線又は第２短絡線が破断された場合にも、上記のような検出方法により、クラックが発生したか否かを判断することができる。 In this exemplary embodiment, as shown in FIG. 5, it is a schematic diagram illustrating the structure of another exemplary embodiment of the touch sensor according to the present invention. The first shorting line 713 and the second shorting line 723 may extend all the way to the edge region 55 . That is, the first shorting line 713 and the second shorting line 723 completely surround the touch area. Even if a crack occurs at an arbitrary position around the touch sensor and the first short-circuit wire or the second short-circuit wire is broken, it is possible to determine whether or not the crack has occurred by the above detection method. can be done.

Claims

A touch panel including a touch area and a peripheral area surrounding the touch area, wherein the peripheral area on at least one side of the touch area includes a bonding area for bonding a circuit board,
At least one test pin group is installed in the bonding area,
each of the at least one test pin group includes two test pins shorted by a shorting wire;
The short-circuit line extends to the outside of the bonding area. The touch panel.

the touch panel has a slot area in which the bonding area is located;
A position other than the bonding area in the slot area is an irregularly shaped slot area,
The touch panel according to claim 1, wherein the short-circuit line passes through the irregular-shaped slot area and extends to a peripheral area other than the slot area.

the touch panel includes a plurality of touch traces;
A plurality of touch pins are installed in the bonding area,
each of the plurality of touch traces includes a first end connected to a touch electrode and a second end connected to one of the plurality of touch pins;
The test pins are installed outside the area where the plurality of touch pins are formed.
The touch panel according to claim 1, characterized in that:

The shorting line is placed on one side of the touch trace away from the touch area
The touch panel according to claim 3, characterized by:

The touch panel of claim 1, wherein the shorting line surrounds the touch area.

The at least one test pin group,
a first test pin group including two first test pins located on the first side of the bonding area and shorted by a first shorting wire;
a second test pin group including two second test pins located on a second side of the bonding area opposite the first side and shorted by a second shorting wire. touch panel.

The first short-circuit line extends to the irregular-shaped slot region and extends along an edge line of the irregular-shaped slot region,
7. The touch panel of claim 6 , wherein the first shorting line extends to the peripheral area of the touch panel on the first side of the bonding area.

The second short-circuit line extends to the irregular-shaped slot region and extends along an edge line of the irregular-shaped slot region,
8. The touch panel of claim 7 , wherein the second shorting line extends to the peripheral area of the touch panel on a second side opposite the first side of the bonding area.

7. The touch panel of claim 6 , wherein the first shorting line and the second shorting line extend throughout the peripheral area.

10. The touch panel of claim 9 , wherein the first shorting line and the second shorting line are adjacent at corners of the peripheral region but do not touch.

The touch panel according to claim 6, wherein extension lengths of the first short-circuit line and the second short-circuit line are different in the peripheral region.

The short-circuit line has a path extending from one test pin of the test pin group to the outside of the bonding area and connected to another test pin of the test pin group.
The touch panel according to claim 1, characterized in that:

the shorting line includes two traces parallel to each other;
The two traces are connected to two test pins respectively
13. The touch panel according to claim 12, characterized by:

A touch module, comprising: the touch panel according to any one of claims 1 to 13 ; and a circuit board on which a touch integrated circuit is installed and bonded to the touch panel,
At least one test pin group is installed in the bonding area of the circuit board,
each of the test pin groups includes two test pins;
When bonding the circuit board to the touch panel, each of the two detection pins of the touch panel faces two detection pins of the circuit board. A touch module.

A touch sensor crack detection method for detecting a touch module according to claim 14 , comprising:
using an electrical signal acquisition unit to acquire electrical signals between two test pins on the circuit board;
and determining whether or not a crack has occurred in the touch sensor based on the electrical signal.

using the electrical signal acquisition unit to acquire electrical signals between a plurality of test pin groups having short-circuit lines with different extension lengths;
16. The method of detecting a crack in a touch sensor according to claim 15 , further comprising determining whether a crack has occurred in the touch panel and a location of the crack based on the electric signal.