CN111896819A - Touch panel, touch panel detection device and detection method - Google Patents
Touch panel, touch panel detection device and detection method Download PDFInfo
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- CN111896819A CN111896819A CN202010306261.1A CN202010306261A CN111896819A CN 111896819 A CN111896819 A CN 111896819A CN 202010306261 A CN202010306261 A CN 202010306261A CN 111896819 A CN111896819 A CN 111896819A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention provides a touch panel which comprises a touch area and a pin area adjacent to the touch area, wherein a touch circuit is arranged in the touch area, a plurality of detection pins and a plurality of virtual pins are arranged in the pin area, the virtual pins are floated and used for receiving detection signals, the touch circuit can generate detection response signals when the detection signals are received by the detection pins, and at least two virtual pins are electrically connected with each other. In the invention, at least one pair of virtual pins are electrically connected with each other, when one pair of alignment probes is contacted with one pair of virtual pins electrically connected with each other, the two alignment probes can be conducted by the electrically connected virtual pins, so that whether the touch panel is aligned with the detection device or not can be quickly judged before a detection signal is output, the detection time is saved, and the quality inspection efficiency of the touch panel is improved. The invention also provides a touch panel detection device and a touch panel detection method.
Description
Technical Field
The present invention relates to the field of touch devices, and in particular, to a touch panel, a touch panel detection apparatus including the touch panel, and a touch panel detection method for the touch panel detection apparatus.
Background
Sloc (single layer electronic cell) touch technology is a technology for manufacturing a single layer circuit pattern on glass in a single layer bridging manner and realizing a touch function through the single layer circuit pattern. Before the SLOC touch panel leaves the factory, the detection device needs to detect the touch circuit on the SLOC touch panel.
However, compared with the conventional touch circuit, the gap distance between the touch circuit and the pins on the SLOC touch panel is too small, so that it is difficult to accurately align the detection device with the SLOC touch panel, and the detection efficiency is low.
Therefore, how to provide a touch panel and a detection device structure that are convenient for alignment becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a touch panel, a touch panel detection device and a touch panel detection method.
In order to achieve the above object, as a first aspect of the present invention, a touch panel is provided, where the touch panel includes a touch area and a pin area adjacent to the touch area, a touch circuit is disposed in the touch area, a plurality of detection pins and a plurality of dummy pins are disposed in the pin area, the dummy pins are floating, the detection pins are used for receiving a detection signal, and the touch circuit is capable of generating a detection response signal when the detection pins receive the detection signal, where at least two of the dummy pins are electrically connected to each other.
Preferably, the plurality of detection pins and the plurality of dummy pins extend in a direction away from the touch area, and are arranged at intervals along a boundary between the touch area and the pin area.
Preferably, two dummy pin pairs are disposed in the pin area, each dummy pin pair includes two dummy pins electrically connected to each other, the two dummy pin pairs are insulated and spaced, and the two dummy pin pairs are respectively located on two sides of the plurality of detection pins.
Preferably, each of the pair of dummy pins further includes a connection portion that electrically connects two of the pair of dummy pins.
Preferably, the material of the connecting part is indium tin oxide.
Preferably, a plurality of alignment marks are further disposed in the pin area.
As a second aspect of the present invention, a touch panel detection apparatus is provided, where the touch panel detection apparatus is configured to detect the aforementioned touch panel, and the touch panel detection apparatus includes a detection unit and a detection probe block, where the detection probe block is provided with a plurality of detection probes and at least one pair of alignment probes, the plurality of detection probes can be in one-to-one contact with a plurality of detection pins on the touch panel, and each pair of alignment probes can be in one-to-one contact with two virtual pins electrically connected to each other;
the detection unit can input a detection signal to the touch panel through a plurality of detection probes and can also receive a detection response signal output by the touch panel; when a pair of the alignment probes are electrically connected with each other, the detection unit can generate an alignment success signal.
Preferably, the touch panel is provided with the alignment mark, the detection block is provided with an alignment mark detection piece, and the alignment mark detection piece is used for identifying the alignment mark on the touch panel.
As a third aspect of the present invention, there is provided a method for detecting a touch panel, the method being used in the apparatus for detecting a touch panel described above, the method comprising:
controlling the detection block to align with the touch panel;
when the detection block is aligned with the touch panel, providing a detection signal to the touch panel;
and receiving a detection response signal output by the touch panel, and judging whether the touch panel is qualified or not according to the detection response signal.
Preferably, the touch panel detection device is a touch panel detection device including the alignment mark detection element, and the step of controlling the detection block to align with the touch panel includes:
and controlling the touch panel to move relative to the detection block until all the alignment mark detection pieces on the detection block identify the alignment marks on the touch panel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a touch panel in the prior art;
fig. 2 is a schematic structural diagram of a touch panel according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an alignment relationship between a touch panel and a touch panel detection device according to an embodiment of the invention;
fig. 4 is a schematic view illustrating an alignment relationship between a touch panel and a touch panel detection device according to an embodiment of the invention from another view angle;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a flowchart illustrating a method for detecting a touch panel according to an embodiment of the present invention;
fig. 7 is a flowchart of a detection method of a touch panel according to another embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic diagram illustrating a distribution of pins on a touch panel in the prior art. The touch area a of the touch panel is provided with a touch circuit 30, which is used for generating a corresponding touch signal when an object such as a human hand or a touch pen approaches or presses the touch panel, so as to implement a touch sensing function. A plurality of detection pins 10 are arranged in the pin area B of the touch panel, the detection pins 10 are connected with the touch circuit 30, and a plurality of virtual pins are reserved on two sides along the distribution direction of the detection pins 10.
Before the touch panel leaves the factory, the plurality of probes on the detection device can be in one-to-one contact with the plurality of detection pins 10, and the detection pins 10 can be used to input detection signals to the touch circuit 30, so as to detect the product quality of the touch panel. However, the pin pitch between the detection pins 10 on the existing touch panel is too small, it is difficult to observe whether the probe and the pins are accurately aligned before inputting the detection signal, and the alignment condition can only be judged by the staff when no response signal is received or an error signal is received, and the relative position between the touch panel and the detection equipment is manually fine-tuned, so that the detection efficiency is low.
In order to solve the above technical problem, as an aspect of the present invention, there is provided a touch panel 100, as shown in fig. 2, the touch panel 100 includes a touch area a and a pin area B adjacent to the touch area, a touch circuit 30 is disposed in the touch area, a plurality of detection pins 10 and a plurality of dummy pins 20 are disposed in the pin area, the dummy pins 20 are floating, the detection pins 10 are used for receiving a detection signal, and the touch circuit 30 is capable of generating a detection response signal when the detection signals are received by the plurality of detection pins 10, wherein at least two dummy pins 20 are electrically connected to each other.
In the embodiment of the present invention, the detection pin 10 is used to electrically connect the touch circuit 30 with a probe in the touch panel detection device, and when the probe in the touch panel detection device contacts the detection pin 10, the detection pin 10 can introduce a detection signal into the touch circuit 30 and transmit a detection response signal fed back by the touch circuit 30 to the touch panel detection device through the probe.
In the present invention, the pin floating means that the pin is not communicated with other electronic components or circuits such as a touch circuit, and is not used for receiving and transmitting any electrical signal, in the touch panel 100 provided in the embodiment of the present invention, at least one pair of floating dummy pins 20 are electrically connected to each other, a pair of alignment probes for detecting the electrically connected dummy pins 20 may be correspondingly disposed in the touch panel detection apparatus, and when a pair of alignment probes is in one-to-one contact with a pair of electrically connected dummy pins 20, the electrically connected dummy pins 20 can conduct the two alignment probes. Therefore, the touch panel detection device can detect whether each pair of alignment probes is conducted before outputting the detection signal, and can quickly judge whether the touch panel 100 is aligned with the touch panel detection device, so that the detection time is saved, and the quality inspection efficiency of the touch panel is improved.
In the embodiment of the present invention, the distribution positions of the detection pins 10 and the dummy pins 20 are not specifically limited, for example, in order to increase the wiring density of the detection pins 10 and the dummy pins 20 and save space on the substrate, preferably, as shown in fig. 2, the plurality of detection pins 10 and the plurality of dummy pins 20 extend in a direction away from the touch area a and are arranged at intervals along the boundary between the touch area a and the pin area B. For the convenience of manufacturing, it is preferable that the dummy pin 20 has the same shape as the detection pin 10 as shown in fig. 2, where the same shape means the same edge profile and size.
In the embodiment of the present invention, the number and the arrangement position of the dummy pins 20 are not specifically limited, for example, in order to improve the confirmation precision of the alignment position, as a preferred embodiment of the present invention, as shown in fig. 2, two dummy pin pairs are disposed in the pin area B, each dummy pin pair includes two dummy pins 20 electrically connected to each other, and the two dummy pin pairs are insulated and spaced apart, and the two dummy pin pairs are respectively located at two sides of the plurality of detection pins 10.
In the embodiment of the invention, the two virtual pin pairs are respectively arranged at the two ends of the arrangement area of the detection pins 10, so that when quality inspection is carried out, only two pairs of alignment probes are required to be simultaneously confirmed to be short-circuited by the two virtual pin pairs, the position and the angle of the whole row of detection pins 10 can be ensured to be aligned with one row of probes on the touch panel detection device, and the accuracy of confirming the alignment condition of the touch panel 100 is improved.
The embodiment of the invention does not specifically limit other structures of the touch panel 100, for example, as shown in fig. 5, the touch panel 100 further includes a substrate 110, and the detection pins 10 and the dummy pins 20 are formed on the substrate 110.
In the embodiment of the present invention, the spacing distance between the leads is not particularly limited, for example, in order to increase the wiring density and reduce the manufacturing cost of the touch panel 100, as a preferred embodiment of the present invention, as shown in fig. 2, the spacing distance between the dummy leads 20 is equal to the spacing distance between the detection leads 10, and the spacing distance is 0.12 mm.
In the embodiment of the present invention, the material of the substrate 110 and the detection pins 10 and the dummy pins 20 is not particularly limited, for example, when the touch panel 100 is an SLOC touch panel, the material of the substrate 110 is preferably glass, and the material of the detection pins 10 and the dummy pins 20 is preferably Indium Tin Oxide (ITO).
The embodiment of the present invention does not specifically limit how to electrically connect the two dummy pins 20, for example, as an implementation manner easy to implement, it is preferable that each dummy pin pair further includes a connection portion 40, as shown in fig. 2, and the connection portion 40 electrically connects the two dummy pins 20 in the dummy pin pair.
When the material of the dummy leads 20 is ito, the material of the connecting portion 40 is preferably ito.
To facilitate the rapid alignment of the touch panel detection apparatus with the touch panel 100, preferably, a plurality of alignment marks are further disposed in the pin area B. The alignment mark can be identified by an alignment mark detection piece on the touch panel detection device, so that the position of the touch panel can be quickly aligned.
It should be noted that, when the pin pitch in the touch panel 100 is small (for example, when the touch panel 100 is an SLOC touch panel), even if the alignment mark is recognized by the alignment mark detector, the alignment between the probe and the pin cannot be accurately ensured. In the touch panel provided by the embodiment of the invention, the virtual pins 20 electrically connected with each other can be used for quickly verifying the alignment condition, so that the next alignment action is started in time, alignment is performed again through the alignment mark, and the alignment result is verified again through the virtual pins 20 electrically connected with each other.
As a second aspect of the present invention, there is provided a touch panel detection apparatus, as shown in fig. 3 to 5, for detecting a touch panel 100 provided in the previous embodiment, the touch panel detection apparatus includes a detection unit 60 and a detection block 50, the detection block 50 is provided with a plurality of detection probes 51 and at least one pair of alignment probes 52, the plurality of detection probes 51 can be in one-to-one contact with a plurality of detection pins 10 on the touch panel 100, and each pair of alignment probes 52 can be in one-to-one contact with two dummy pins 20 electrically connected to each other;
the detection unit 60 can input a detection signal to the touch panel 100 through the plurality of detection probes 51, and can also receive a detection response signal output by the touch panel 100; when the pair of alignment probes 52 are electrically connected to each other, the detection unit 60 can generate an alignment success signal.
In the embodiment of the present invention, the detection probe block 50 of the touch panel detection apparatus is not only provided with the detection probe 51, but also provided with the alignment probe 52 for aligning and contacting with the dummy pin 20. When the pair of alignment probes 52 is in one-to-one contact with the pair of dummy pins 20 electrically connected to each other, the pair of dummy pins 20 electrically connected to each other can conduct the two alignment probes. Therefore, the touch panel detection device can quickly detect whether each pair of alignment probes 52 is conducted before outputting the detection signal and receiving the detection response signal, so as to quickly determine whether the touch panel 100 is aligned with the touch panel detection device, thereby saving the detection time and improving the quality inspection efficiency of the touch panel.
In order to facilitate the rapid alignment of the touch panel detection apparatus with the touch panel 100, preferably, as shown in fig. 4, the touch panel 100 is the touch panel 100 provided with the alignment mark in the previous embodiment, the detection probe block 50 is provided with an alignment mark detection piece 70, and the alignment mark detection piece 70 is used for identifying the alignment mark on the touch panel 100.
The structure of the detecting unit 60 is not particularly limited in the embodiments of the present invention, and the detecting unit 60 may be a Printed Circuit Board (PCB), for example. The structure of the alignment mark detector 70 is not particularly limited in the embodiment of the present invention, and the alignment mark detector 70 may be a camera, for example.
As a third aspect of the present invention, there is provided a detection method of a touch panel, the detection method being used in the detection apparatus of a touch panel provided in the previous embodiment, as shown in fig. 6, the detection method comprising:
s1, controlling the detecting block 50 to align with the touch panel 100;
s2, when the detecting block 50 is aligned with the touch panel 100, providing a detecting signal to the touch panel 100;
s3, receiving the detection response signal outputted from the touch panel 100, and determining whether the touch panel 100 is qualified according to the detection response signal.
In order to facilitate the rapid alignment of the touch panel detection apparatus with the touch panel 100, preferably, the detection probe block 50 of the touch panel detection apparatus is provided with an alignment mark detection member 70, and the step S1 of controlling the alignment of the detection probe block 50 with the touch panel 100 includes:
the touch panel 100 is controlled to move relative to the detection block 50 until all the alignment mark detectors 70 on the detection block 50 recognize the alignment marks on the touch panel 100.
In order to further improve the quality inspection efficiency, preferably, as shown in fig. 7, the inspection method further includes:
s4, when the detection unit 60 does not generate the alignment success signal, re-executing the step of aligning the detection block 50 with the touch panel 100; when the number of times of execution of the step of aligning the detection block 50 with the touch panel 100 exceeds a preset value, an abnormal signal is generated.
In the embodiment of the present invention, the detection block 50 and the touch panel 100 are aligned by the alignment mark detection element 70, and the pin and the probe are misaligned at a certain probability, so that multiple attempts can be made when the alignment fails. If the alignment is still impossible after multiple attempts, an abnormal signal is generated so that the worker can find abnormal conditions (such as damage of the display panel, twisting of the alignment mark detection piece 70 and the like) in time and manually solve the abnormal conditions, and therefore the risk of stopping the quality inspection line is reduced and the quality inspection efficiency is improved.
The preset value of the execution times is not particularly limited in the embodiment of the present invention, and for example, the preset value may be 2 times.
In the detection method provided by the embodiment of the invention, before the detection step is executed, the alignment condition between the touch panel 100 and the touch panel detection device is quickly verified by using the alignment probes 52 arranged on the detection probe block 50 of the touch panel detection device and the virtual pins 20 electrically connected with each other, so that the detection time is greatly saved, and the quality inspection efficiency of the touch panel is improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A touch panel comprises a touch area and a pin area adjacent to the touch area, wherein a touch circuit is arranged in the touch area, a plurality of detection pins and a plurality of virtual pins are arranged in the pin area, the virtual pins are floated and used for receiving detection signals, and the touch circuit can generate detection response signals when the detection signals are received by the detection pins.
2. The touch panel of claim 1, wherein the plurality of detection pins and the plurality of dummy pins each extend in a direction away from the touch area and are spaced apart along a boundary between the touch area and the pin area.
3. The touch panel according to claim 2, wherein two dummy pin pairs are disposed in the pin area, each dummy pin pair includes two dummy pins electrically connected to each other, and the two dummy pin pairs are spaced apart from each other, and are respectively located at two sides of the plurality of detection pins.
4. The touch panel of claim 3, wherein each of the dummy pin pairs further comprises a connecting portion electrically connecting two of the dummy pins in the dummy pin pair.
5. The touch panel of claim 4, wherein the connecting portion is made of indium tin oxide.
6. The touch panel according to any one of claims 1 to 5, wherein a plurality of alignment marks are further disposed in the lead area.
7. A touch panel detection device, wherein the touch panel detection device is used for detecting the touch panel of any one of claims 1 to 6, and the touch panel detection device comprises a detection unit and a detection probe block, the detection probe block is provided with a plurality of detection probes and at least one pair of alignment probes, the plurality of detection probes can be in one-to-one contact with a plurality of detection pins on the touch panel, and each pair of alignment probes can be in one-to-one contact with two virtual pins electrically connected with each other;
the detection unit can input a detection signal to the touch panel through a plurality of detection probes and can also receive a detection response signal output by the touch panel; when a pair of the alignment probes are electrically connected with each other, the detection unit can generate an alignment success signal.
8. The apparatus according to claim 7, wherein the touch panel is the touch panel of claim 6, the detection block is provided with an alignment mark detection element, and the alignment mark detection element is used for identifying an alignment mark on the touch panel.
9. A detection method of a touch panel, the detection method being used in the touch panel detection apparatus of claim 7 or 8, the detection method comprising:
controlling the detection block to align with the touch panel;
when the detection block is aligned with the touch panel, providing a detection signal to the touch panel;
and receiving a detection response signal output by the touch panel, and judging whether the touch panel is qualified or not according to the detection response signal.
10. The detection method according to claim 9, wherein the touch panel detection apparatus is the touch panel detection apparatus according to claim 8, and the step of controlling the detection probe block to be aligned with the touch panel comprises:
and controlling the touch panel to move relative to the detection block until all the alignment mark detection pieces on the detection block identify the alignment marks on the touch panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010306261.1A CN111896819A (en) | 2020-04-17 | 2020-04-17 | Touch panel, touch panel detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010306261.1A CN111896819A (en) | 2020-04-17 | 2020-04-17 | Touch panel, touch panel detection device and detection method |
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