CN202939575U - Touch panel with disconnection prevention structure - Google Patents

Touch panel with disconnection prevention structure Download PDF

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Publication number
CN202939575U
CN202939575U CN 201220391385 CN201220391385U CN202939575U CN 202939575 U CN202939575 U CN 202939575U CN 201220391385 CN201220391385 CN 201220391385 CN 201220391385 U CN201220391385 U CN 201220391385U CN 202939575 U CN202939575 U CN 202939575U
Authority
CN
China
Prior art keywords
breaking line
shielding layer
preventive structure
line preventive
contact panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220391385
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Chinese (zh)
Inventor
谢文仁
汤逢锦
洪文进
宋淑婷
郭义鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CPTF Optronics Co Ltd
Chunghwa Picture Tubes Ltd
Original Assignee
CPTF Optronics Co Ltd
Chunghwa Picture Tubes Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CPTF Optronics Co Ltd, Chunghwa Picture Tubes Ltd filed Critical CPTF Optronics Co Ltd
Priority to CN 201220391385 priority Critical patent/CN202939575U/en
Application granted granted Critical
Publication of CN202939575U publication Critical patent/CN202939575U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the field of touch panel design and provides a touch panel with a line breaking prevention structure. The touch panel comprises a substrate, a touch control sensing layer, at least on signal line and a shielding layer. The substrate comprises a sensing ares arranged in the center and a non-sensing area surrounding the sensing area. The touch sensing layer is arranged on the surface of the sensing area of the substrate. One end of the signal line is connected at the edge of the touch control sensing layer and extends outwards to the non-sensing area. The shielding layer is arranged between the substrate of the non-sensing area and the signal line and surrounded on the touch sensing layer, the shielding layer is provided with at least one line breaking prevention structure, and the signal line extends to the non-sensing area from the edge of the touch sensing layer through the line breaking prevention structure of the shielding layer. By arranging the at least one line breaking prevention structure on the surface of the shielding layer, the problem that the signal line is broken can be solved, and yield rate of products is improved.

Description

The contact panel of breaking line preventive structure
Technical field
The utility model belongs to the contact panel design field, relates in particular to a kind of contact panel of breaking line preventive structure.
Background technology
What touch control display was general is applied in all kinds of electronic devices, for example the electronic installations such as mobile phone, personal digital assistant (Personal Digital Assistant, PDA), MP3 music player or flat computer.Touch control display mutually combines touch technology (for example resistance-type, capacitive touch control techniques) and liquid crystal display, has simple and the operational advantage of intuitive, so replaces gradually physical button.
In touch control display, except liquid crystal display, the cooperation of the contact panel of still needing.Common contact panel comprises a substrate, a touch-control sensing structure and a shielding layer, and this touch-control sensing structure comprises touch-control sensing layer and signal wire.When making above-mentioned contact panel, generally the touch-control sensing layer is formed on the zone line of substrate surface, an end of signal wire is arranged at the edge of this touch-control sensing layer and stretches out.Shielding layer is arranged between this substrate and this signal wire and around this touch-control sensing layer, in order to cover this signal wire.The masking material that uses because of shielding layer need possess and a certain amount of the effect of covering be arranged, therefore formed shielding layer has certain thickness (this thickness is for example 3 microns) at least.
See also Fig. 1, it is the vertical view of known contact panel 1 ', and this contact panel 1 ' comprises substrate 10 ', touch-control sensing layer 20 ', at least one signal wire 30 ' and shielding layer 40 '.Please continue to consult Fig. 2 and Fig. 3, Fig. 2 is the cut-open view that known contact panel is got along the A-A ' profile line of Fig. 1, can understand the surface that this shielding layer 40 ' are arranged at this substrate 10 ', and the part of this signal wire 30 ' is crossed over the bottom surface (not indicating in figure) of this shielding layer 40 '; Fig. 3 is the cut-open view that known contact panel is got along the B-B ' profile line of Fig. 1, this substrate 10 ' comprise be positioned at central authorities a sensing area 10a ' and the non-sensing area 10b ' outside this sensing area 10a '.This touch-control sensing layer 20 ' are arranged at the surface of this sensing area 10a ' of this substrate 10 '.This shielding layer 40 ' be arranged on this substrate 10 ' this non-sensing area 10b ' the surface and around this touch-control sensing layer 20 ', the thickness of this shielding layer 40 ' is much larger than the thickness of this touch-control sensing layer 20 ', thereby has sizable offset between this shielding layer 40 ' and this touch-control sensing layer 20 '.The end of this signal wire 30 ' is connected in the edge of this touch-control sensing layer 20 ', and its other end extends the marginal surface of this substrate 10 ' of this non-sensing area 10b '.This signal wire 30 ' are extended and are crossed over bottom surface 401 ' of shielding layer 40 ' that are positioned at this non-sensing area 10b ' by the edge of touch-control sensing layer 20 ' of this sensing area 10a '.
Based on said structure, as shown in Figure 3, the thickness of this shielding layer 40 ' is much larger than the thickness of this touch-control sensing layer 20 ', and two opposite side walls 400 ' of this shielding layer 40 ' are vertical plane, therefore this signal wire 30 ' can make the gradient of these signal wire 30 ' rise and fall steeper, and have the space between sidewall 400 ' of this signal wire 30 ' and this shielding layer 40 ' when crossing over this shielding layer 40 ', and cause signal wire 30 ' easily to produce the problem of fracture, thereby reduce the yield of product.
Therefore, be necessary to provide a kind of contact panel of improvement, to address the above problem.
The utility model content
The purpose of this utility model is to provide a kind of contact panel of breaking line preventive structure, is intended to solve in the structure of the contact panel that prior art provides, and signal wire easily produces fracture, thereby reduces the problem of the yield of product.
For reaching above-mentioned purpose, the utility model provides a kind of contact panel of breaking line preventive structure, and this structure comprises: a substrate, this substrate comprise be positioned at central authorities a sensing area and the non-sensing area outside this sensing area; One touch-control sensing layer is arranged at a surface of this sensing area of this substrate; At least one signal wire, an end of this signal wire is connected in the edge of this touch-control sensing layer, and extends out to this non-sensing area; An and shielding layer, be arranged between this substrate and this signal wire of this non-sensing area, and around this touch-control sensing layer, this shielding layer is provided with at least one breaking line preventive structure, and wherein the edge from this touch-control sensing layer extends to this non-sensing area to this signal wire via this breaking line preventive structure of this shielding layer.
In an embodiment of the present utility model, this breaking line preventive structure is arranged at a groove of this shielding layer.
In an embodiment of the present utility model, the two opposite side walls of this groove is vertical configuration.
In an embodiment of the present utility model, the two opposite side walls of this groove is ramped shaped.
In an embodiment of the present utility model, the thickness range of this shielding layer of this channel bottom is between 0.5 micron to 2.5 microns.
In an embodiment of the present utility model, this breaking line preventive structure is the part of this shielding layer, and the two opposite side walls of this breaking line preventive structure is ramped shaped.
In an embodiment of the present utility model, the pitch angle of this two opposite side walls is between 80 degree between 10 degree.
In an embodiment of the present utility model, this two opposite side walls of this breaking line preventive structure is connected to a place, bottom surface and is circular-arc.
Compared to prior art, the contact panel of the utility model breaking line preventive structure is by the overlapping region at signal wire and shielding layer, at least one breaking line preventive structure is set in the surface of the shielding layer of this overlapping region, this breaking line preventive structure can solve the problem of signal wire fracture, thereby increases the yield of product.
Description of drawings
Fig. 1 is the vertical view of known contact panel;
Fig. 2 is the cut-open view that known contact panel is got along the A-A ' profile line of Fig. 1;
Fig. 3 is the cut-open view that known contact panel is got along the B-B ' profile line of Fig. 1;
Fig. 4 is the vertical view of contact panel in the utility model embodiment;
Fig. 5 is sensing area that in the utility model embodiment, substrate comprises and the vertical view of non-sensing area;
Fig. 6 is the cut-open view of getting along the A-A ' profile line of Fig. 4 in the utility model the first embodiment;
Fig. 7 is the cut-open view of getting along the B-B ' profile line of Fig. 4 in the utility model the first embodiment;
Fig. 8 is the cut-open view of getting along the A-A ' profile line of Fig. 4 in the utility model the second embodiment;
Fig. 9 is the cut-open view of getting along the B-B ' profile line of Fig. 4 in the utility model the second embodiment;
Figure 10 is the cut-open view of getting along the A-A ' profile line of Fig. 4 in the utility model the 3rd embodiment;
Figure 11 is the cut-open view of getting along the B-B ' profile line of Fig. 4 in the utility model the 3rd embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 4 and Fig. 5, show respectively the vertical view of contact panel 1 in the utility model one embodiment, and the sensing area that comprises of substrate 10 and the vertical view of non-sensing area.
This contact panel 1 comprises: a substrate 10, a touch-control sensing layer 20, at least one signal wire 30 and a shielding layer 40.This substrate 10 comprise be positioned at central authorities a sensing area 10a and the non-sensing area 10b outside this sensing area 10a, this substrate 10 is for example glass substrate.This touch-control sensing layer 20 is arranged at the surface of this sensing area 10a of this substrate 10, and this touch-control sensing layer 20 comprises a plurality of sensing units (not indicating in figure), is used for responding to the user for this contact panel 1 touch-control.One end of this signal wire 30 is connected in the edge of this touch-control sensing layer 20, and extends out to the demand that the substrate 10(that is positioned at this non-sensing area 10b looks design, also can be this shielding layer 40) the surface, in order to transmit a touching signals of this touch-control sensing layer 20.40 of this shielding layers are arranged between the substrate 10 and this signal wire 30 of this non-sensing area 10b, and simultaneously around this touch-control sensing layer 20, the setting of this shielding layer 40 act as covers this signal wire 30, to reach demand attractive in appearance.Wherein, this shielding layer 40 is provided with a breaking line preventive structure 41, this breaking line preventive structure 41 is the part of this shielding layer 40, and this signal wire 30 is across to the surface of the substrate 10 of this non-sensing area 10b from the edge of this touch-control sensing layer 20 via this breaking line preventive structure 41 of this shielding layer 40.This shielding layer 40 and breaking line preventive structure 41 thereof can utilize many gray-level masks processing procedure (Multi-tone mask process) to form, and it is a negative photoresistance type insulating material, below enumerates the structure that three kinds of embodiment are illustrated this breaking line preventive structure 41.
[embodiment 1]
The first embodiment of the utility model breaking line preventive structure 41, see also Fig. 6 and Fig. 7, Fig. 6 is the cut-open view of getting along the A-A ' profile line of Fig. 4 in the utility model the first embodiment, can understand the surface that this shielding layer 40 is arranged at this substrate 10, and the part of this signal wire 30 is crossed over the bottom surface (not indicating in figure) of this shielding layer 40; Fig. 7 is the cut-open view of getting along the B-B ' profile line of Fig. 4 in the utility model the first embodiment, other part uniform thickness of this breaking line preventive structure 51 and shielding layer 40, and the two opposite side walls 510 of this breaking line preventive structure 51 is ramped shaped, and the two opposite side walls of the shielding layer 40 of other parts can be all ramped shaped or be vertical configuration.The pitch angle of this two opposite side walls 510 of this breaking line preventive structure 51 is between 80 degree between 10 degree, namely, this two opposite side walls 510 of this breaking line preventive structure 51 is connected to the angle at 511 places, bottom surface between 100 degree are spent to 170, and this signal wire 30 is to extend across to non-sensing area 10b from sensing area 10a via this breaking line preventive structure 51, and this two opposite side walls 510 of above-mentioned breaking line preventive structure 51 is connected to 511 places, a bottom surface and also can be circular-arc.The present embodiment is to remove to support this signal wire 30 by this two opposite side walls 510 that is ramped shaped of breaking line preventive structure 51, thereby solves the problem of signal wire 30 fractures.
[embodiment 2]
the second embodiment of the utility model breaking line preventive structure 41, see also Fig. 8 and Fig. 9, Fig. 8 is the cut-open view of getting along the A-A ' profile line of Fig. 4 in the utility model the second embodiment, can understand the surface that this shielding layer 40 is arranged at this substrate 10, and shielding layer 40 has a breaking line preventive structure 61, this breaking line preventive structure 61 is to form a groove 610 in this shielding layer 40, this groove 610 is across the two opposite side walls (not indicating in figure) of this shielding layer 40, and the part of this signal wire 30 is crossed over the channel bottom 611 of this breaking line preventive structure 61, the thickness range of this channel bottom 611 better between 0.5 micron (Micrometer) is to 2.5 microns, Fig. 9 is the cut-open view of getting along the B-B ' profile line of Fig. 4 in the utility model the second embodiment, the channel bottom 611(of this breaking line preventive structure 61 please contrast Fig. 8) thickness be not provided with the shielding layer 40 of groove 610 less than other, the two opposite side walls 6110 of this channel bottom 611 is vertical configuration, and this signal wire 30 is to extend across to non-sensing area 10b from sensing area 10a via this groove 610.The present embodiment is by the surface at this shielding layer 40, one groove 610 across the two opposite side walls 6110 of this shielding layer 40 to be set, and this signal wire 30 is to extend to non-sensing area 10b via this groove 610 from sensing area 10a, because the thickness of this signal wire 30 by these shielding layer 40 places (i.e. this groove 610) lowers, therefore can slow down the gradient of this signal wire 30 rise and fall when crossing over shielding layer 40, thereby avoid the problem of signal wire 30 fractures.
[embodiment 3]
the third embodiment of the utility model breaking line preventive structure 41, see also Figure 10 and Figure 11, Figure 10 is the cut-open view of getting along the A-A ' profile line of Fig. 4 in the utility model the 3rd embodiment, can understand the surface that this shielding layer 40 is arranged at this substrate 10, and shielding layer 40 has a breaking line preventive structure 71, this breaking line preventive structure 71 is to form a groove 710 in this shielding layer 40, this groove 710 is across the two opposite side walls (not indicating in figure) of this shielding layer 40, and the part of this signal wire 30 is crossed over the channel bottom 711 of this breaking line preventive structure 71, the thickness range of this channel bottom 711 better between 0.5 micron (Micrometer) is to 2.5 microns, Figure 11 is the cut-open view of getting along the B-B ' profile line of Fig. 4 in the utility model the 3rd embodiment, the thickness of this channel bottom 711 is less than other shielding layer 40, in addition, the two opposite side walls 7110 of this channel bottom 711 is ramped shaped, and the pitch angle of this two opposite side walls 7110 is between 80 degree between 10 degree, namely this two opposite side walls 7110 of this channel bottom 711 is connected to the angle at 7111 places, bottom surface between 100 degree are spent to 170, and this signal wire 30 is to extend across to non-sensing area 10b from sensing area 10a via this channel bottom 711, this two opposite side walls 7110 of above-mentioned channel bottom 711 is connected to 7111 places, a bottom surface and also can be circular-arc.The present embodiment is to lower via the thickness of this signal wire 30 by these shielding layer 40 places (i.e. this groove 710), the gradient of these signal wire 30 rise and fall is slowed down, two opposite side walls 7110 because of channel bottom 711 is ramped shaped simultaneously, this signal wire 30 of passing through can be supported, thereby the problem of signal wire 30 fractures can be more effectively prevented.
As mentioned above, the contact panel of the utility model breaking line preventive structure is by the overlapping region at this signal wire 30 and this shielding layer 40, one breaking line preventive structure 41 is set in the surface of the shielding layer 40 of this overlapping region, this breaking line preventive structure 51,61,71 can solve the problem of signal wire 30 fractures, thereby increases the yield of product.In addition; the contact panel of the utility model breaking line preventive structure; because this breaking line preventive structure 61,71 can be one to have groove 610,710 shielding layer 40; in the lower surface of this contact panel 1, formed protection insulation course (not indicating in figure) has more better tack compared to prior art at the coating insulating material.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. the contact panel of a breaking line preventive structure, is characterized in that, above-mentioned contact panel comprises:
One substrate, described substrate comprise be positioned at central authorities a sensing area and the non-sensing area outside described sensing area;
One touch-control sensing layer is arranged at a surface of the described sensing area of described substrate;
At least one signal wire, an end of described signal wire is connected in the edge of described touch-control sensing layer, and extends out to described non-sensing area; And
One shielding layer is arranged between this substrate and described signal wire of described non-sensing area, and around described touch-control sensing layer, described shielding layer is provided with at least one breaking line preventive structure,
Edge from described touch-control sensing layer extends to described non-sensing area to wherein said signal wire via the described breaking line preventive structure of described shielding layer.
2. the contact panel of breaking line preventive structure as claimed in claim 1, is characterized in that, described breaking line preventive structure is arranged at a groove of described shielding layer.
3. the contact panel of breaking line preventive structure as claimed in claim 2, is characterized in that, the two opposite side walls of described groove is vertical configuration.
4. the contact panel of breaking line preventive structure as claimed in claim 2, is characterized in that, the two opposite side walls of described groove is ramped shaped.
5. the contact panel of breaking line preventive structure as claimed in claim 2, is characterized in that, the thickness range of the described shielding layer of described channel bottom is between 0.5 micron to 2.5 microns.
6. the contact panel of breaking line preventive structure as claimed in claim 1, is characterized in that, described breaking line preventive structure is the part of described shielding layer, and the two opposite side walls of described breaking line preventive structure is ramped shaped.
7. the contact panel of breaking line preventive structure as described in claim 4 or 6, is characterized in that, the pitch angle of described two opposite side walls is between 80 degree between 10 degree.
8. the contact panel of breaking line preventive structure as claimed in claim 6, is characterized in that, the described two opposite side walls of described breaking line preventive structure is connected to a place, bottom surface and is circular-arc.
9. the contact panel of breaking line preventive structure as claimed in claim 1, is characterized in that, described shielding layer is formed with many gray-level masks processing procedure.
10. the contact panel of breaking line preventive structure as claimed in claim 9, is characterized in that, described shielding layer is to form with negative photoresistance type insulating material.
CN 201220391385 2012-08-08 2012-08-08 Touch panel with disconnection prevention structure Expired - Fee Related CN202939575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220391385 CN202939575U (en) 2012-08-08 2012-08-08 Touch panel with disconnection prevention structure

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Application Number Priority Date Filing Date Title
CN 201220391385 CN202939575U (en) 2012-08-08 2012-08-08 Touch panel with disconnection prevention structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111125662A (en) * 2018-10-30 2020-05-08 群创光电股份有限公司 Foldable display device having biometric sensor and driving method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111125662A (en) * 2018-10-30 2020-05-08 群创光电股份有限公司 Foldable display device having biometric sensor and driving method thereof
CN111125662B (en) * 2018-10-30 2022-10-14 群创光电股份有限公司 Foldable display device having biometric sensor and driving method thereof

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20130515

Termination date: 20210808