CN101776969A - Touch panel - Google Patents

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Publication number
CN101776969A
CN101776969A CN201010115394A CN201010115394A CN101776969A CN 101776969 A CN101776969 A CN 101776969A CN 201010115394 A CN201010115394 A CN 201010115394A CN 201010115394 A CN201010115394 A CN 201010115394A CN 101776969 A CN101776969 A CN 101776969A
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Prior art keywords
contact panel
sensing serials
many
substrate
sensing
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CN201010115394A
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Chinese (zh)
Inventor
邱昌明
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Shenchao Photoelectric Shenzhen Co Ltd
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Shenchao Photoelectric Shenzhen Co Ltd
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Priority to CN201010115394A priority Critical patent/CN101776969A/en
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Abstract

The invention relates to a touch panel which comprises a plurality of first sensing serials, a plurality of second sensing serials and a plurality of raised patterns, wherein the first sensing serials are arranged on a substrate and arrayed along a first direction, each sensing serial comprises a plurality of first sensing pads and a plurality of first bridging lines, and the first bridging lines and the first sensing pads are alternately connected; the second sensing serials are arranged on the substrate, arrayed along a second direction and alternately arrayed with the first sensing serials, each second serial comprises a plurality of second sensing pads and a plurality of second bridging lines, and the second bridging lines are alternately connected with the second sensing pads; and the raised patterns are randomly distributed at the positions of the first sensing serials and the second sensing serials.

Description

Contact panel
[technical field]
The present invention relates to a kind of contact panel, and be particularly related to a kind of visual effect display panel comparatively uniformly.
[background technology]
Fast development and application along with information technology, wireless mobile communication and information household electrical appliances, to carry more convenient, lighter and handyizatioier of volume and operate more humane purpose in order to reach, many information products change into and use contactor control device as input media by input medias such as traditional keyboard or mouses.At present, contact panel roughly can be divided into electric resistance touch-control panel, capacitance type touch-control panel, sound wave type contact panel, optical touch control panel and electromagnetic touch-control panel or the like.
With capacitance type touch-control panel, a kind of projected capacitive touch panel with multi-point touch function is one of main product in the market.Projected capacitive touch panel is that a plurality of sensor pads are concatenated into many tandems interlaced with each other along different directions.When the user with directly touching during contact panel of conductor object or finger, conductor object or point and will form a coupling capacitance with rhombus sensor pad or multiple difform sensor pad.Contact panel just can be judged touch position by the coupling capacitance on the different tandems.
Fig. 1 is shown as a kind of known sensor pad configuration mode.Please refer to Fig. 1, on the diagonal of sensor pad 10, the central point of the two adjacent sensor pads 10 spacing P of being separated by.In addition, be parallel on sensor pad 10 sides side of two adjacent sensor pads 10 distance D of being separated by.Owing to the burden of the big more easy more increase chip for driving of the coupling capacitance between the sensor pad 10 is unfavorable for the sensing sensitivity.So,, must keep specific distance D along with the size of spacing P between the sensor pad 10 in order to meet the demand of chip for driving.For example, when spacing P was 5mm to 6mm, distance D generally all was set at 30 μ m to 50 μ m.
Under such design, chip for driving can have good arithmetic capability, but the light penetration different in kind of sensor pad 10 positions and distance D position.Therefore, the big more user of distance D will see the profile of sensor pad 10 significantly and cause the user to experience uneven visual effect.That is to say to display quality negative influence to be arranged when being provided with when such contact panel collocation display panel.
[summary of the invention]
The invention provides a kind of contact panel, have uniform visual effect.
The present invention proposes a kind of contact panel, comprises many first sensing serials, many second sensing serials and a plurality of raised design.First sensing serials is disposed on the substrate.Each first sensing serials is arranged along a first direction, and comprises a plurality of first sensor pads and many first bridging lines, and wherein first bridging line alternately is connected with first sensor pad.Second sensing serials is disposed on the substrate.Each second sensing serials is arranged with staggered with first sensing serials along a second direction, and comprises a plurality of second sensor pads and many second bridging lines, and wherein second bridging line alternately is connected with second sensor pad.Raised design is distributed in first sensing serials and the second sensing serials position brokenly.
In an embodiment of the present invention, the above-mentioned area of raised design orthogonal projection on substrate is less than the area of first sensor pad and the area of second sensor pad.
In an embodiment of the present invention, above-mentioned each raised design comprises that an insulation projection is disposed on the substrate.The material of insulation projection for example is an organic insulation, and the thickness of insulation projection is 1 μ m to 5 μ m.Perhaps, the material of insulation projection is silicon nitride or suitable transparent insulation material, and as monox, and the thickness of insulation projection is Extremely
Figure GSA00000022533500022
In one embodiment, contact panel further comprises a protective seam, and it is disposed on the substrate and covers first sensing serials, second sensing serials and insulation projection.The material of protective seam for example is a monox.
In an embodiment of the present invention, above-mentioned contact panel further comprises a protective seam covering first sensing serials and second sensing serials, and protective seam has raised design.In addition, the material of protective seam can be monox, and the thickness of protective seam is
Figure GSA00000022533500023
Extremely
Figure GSA00000022533500024
The material of protective seam can also be other transparent insulation materials, as organic compound, silicon nitride or monox etc.
In an embodiment of the present invention, the distribution density of above-mentioned raised design on substrate is 5% to 30%.
In an embodiment of the present invention, the width of above-mentioned raised design orthogonal projection on substrate is 10 μ m to 100 μ m.
In an embodiment of the present invention, above-mentioned raised design orthogonal projection is shaped as circle, similar round or polygon on substrate.
Based on above-mentioned, contact panel of the present invention has a plurality of raised designs.Raised design can disturb the character that penetrates of light.Therefore, contact panel can have visual effect uniformly.
For the above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended diagram to be described in detail below.
[description of drawings]
Fig. 1 is shown as a kind of known rhombus electrode configuration mode.
Fig. 2 is shown as the local schematic top plan view of the contact panel of one embodiment of the invention.
Fig. 3 A~3C is respectively along the cross-section structure of the shown a kind of contact panel of Fig. 2 Vertical Centre Line I-I ', hatching line II-II ' and hatching line III-III '.
Fig. 4 A~4C is respectively along the cross-section structure of the shown another kind of contact panel of Fig. 2 Vertical Centre Line I-I ', hatching line II-II ' and hatching line III-III '.
Fig. 5 A~5C is respectively along the cross-section structure of another shown contact panel of Fig. 2 Vertical Centre Line I-I ', hatching line II-II ' and hatching line III-III '.
Fig. 6 A~6C is respectively along the cross-section structure of another shown contact panel of Fig. 2 Vertical Centre Line I-I ', hatching line II-II ' and hatching line III-III '.
[embodiment]
Fig. 2 is shown as the local schematic top plan view of the contact panel of one embodiment of the invention.Please refer to Fig. 2, contact panel 100 for example is made up of many first sensing serials 110 and many second sensing serials 120.In addition, dispose on the contact panel 100 and have a plurality of raised design B.First sensing serials 110 and second sensing serials 120 are interlaced.Each first sensing serials 110 comprises a plurality of first sensor pads 112 and many first bridging lines 114, and first sensor pad 112 alternately is connected bunchiness along a first direction V1 with first bridging line 114.Each second sensing serials 120 comprises a plurality of second sensor pads 122 and many second bridging lines 124, and second sensor pad 122 alternately is connected bunchiness along a second direction V2 with second bridging line 124.
Be subject to the arithmetic capability of chip for driving, D at intervals between the first adjacent sensor pad 112 and second sensor pad 122, contact panel 100 just can have good sensing sensitivity.The big more then user of distance D is easy more to discover the profile of first sensing serials 110 and second sensing serials 120 in the contact panel 100.Therefore, when lacking suitable design, the visual effect that contact panel 100 is presented is not satisfactory.Be provided with a plurality of raised design B in the contact panel 100 of present embodiment, so the uneven situation of light penetration rate can be improved significantly.That is to say that raised design B is provided with the visual effect that helps promote contact panel 100.
Specifically, when light passed contact panel 100, the existence of raised design B will influence the character that penetrates of light.In one embodiment, the distribution density of raised design B in contact panel 100 for example is 5% to 30%, and raised design B and distribute not according to specific distribution mode.That is to say that raised design B is that (just brokenly or regularly) is distributed in the contact panel 100 randomly, especially, is distributed in first sensing serials 110 and second sensing serials, 120 positions randomly.Outside the ratio, the area of raised design B orthogonal projection on the plane of contact panel 100 is less than the area of first sensor pad 112 and the area of second sensor pad 122.Therefore, when user's viewing distance D position or first sensor pad, 112 positions or second sensor pad, 122 positions, the through characteristic of light all is subjected to raised design B influence, uses the penetrance difference that makes between distance D and the sensor pad (112 or 122) and is not easy to be observed by the user.So compared to the design that does not have raised design B, the contact panel 100 of present embodiment can provide visual effect comparatively uniformly.
That is to say that the setting of raised design B is in order to make the user watch the visual effect obfuscation of contact panel 100.Thus, the user can not find out first sensor pad 112 or the profile of second sensor pad 122 significantly.When contact panel 100 collocation display device, help to keep good display effect.
For instance, for fuzzy user's vision, the width of raised design B orthogonal projection on the plane of contact panel 100 can be 10 μ m to 100 μ m.In addition, the shape of raised design B orthogonal projection on the plane of contact panel 100 can be circle, similar round or polygon, and wherein similar round can be the geometric configuration that ellipse, droplet-shaped, Pear-Shaped etc. have curved edge.But, conditions such as shape described above, size, distribution density all are in order to illustrate, and are not in order to limit the present invention.In practical design, conditions such as the shape of raised design B, size, distribution density can be adjusted to some extent in response to the size of contact panel 100 and with user's demand.Certainly, the shape of first sensor pad 112 and second sensor pad 122 also only is in order to illustrate at this, in other embodiment, the shape of first sensor pad 112 and second sensor pad 122 can be other geometric configuratioies except rhombus, for example octagon, circle, hexagon, pentagon, rectangle etc., but or be equivalent to the arbitrary shape of sensing.
Above description all is the structure that is had in vertical view at contact panel 100, and these structures can be by the realization of different cross-section structures.Therefore, following Fig. 3 A~3C, Fig. 4 A~4C, Fig. 5 A~5C and Fig. 6 A~6C is shown as the multiple cross-section structure of the contact panel of Fig. 2 respectively, wherein Fig. 3 A, 4A, 5A and 6A are along the shown cross-section structure of hatching line I-I ', 3B, 4B, 5B and 6B are along the shown cross-section structure of hatching line II-II ', and 3C, 4C, 5C and 6C are along the shown cross-section structure of hatching line III-III '.
Please be simultaneously with reference to Fig. 3 A~Fig. 3 C, contact panel 100 in cross-section structure for example by a substrate 102 and be formed at first sensing serials 110 on the substrate 102, a plurality of insulation projection 130, second sensing serials 120 and a protective seam 140 in regular turn and constituted.What deserves to be mentioned is that the plane of aforesaid contact panel 100 is meant the plane that substrate 102 is provided at this.That is to say that in the previous described content, the area of raised design B and shape define raised design B orthogonal projection on substrate 102.
In addition, in the shown embodiment of Fig. 3 A~Fig. 3 C, first sensor pad 112 and first bridging line 114 for example are directly by being made with one deck transparent conductive material, and second sensor pad 122 and second bridging line 124 then are to be made by another layer transparent conductive material.Therefore, each bar first sensing serials 110 for example is one of the forming, and each bar second sensing serials 120 also for example is formed in one.In addition, first sensing serials 110 all is disposed at the side that insulation projection 130 approaches substrate 102, and second sensing serials 120 all is disposed at insulation projection 130 another offside away from substrate 102.140 of protective seams for example are away from one of substrate 102 in these elements.
What deserves to be mentioned is; make in the process of insulation projection 130 can be by a gold-tinted processing procedure, a printing process or a light shield processing procedure carrying out forming these insulation projections 130, and protective seam 140 in fact conformally is covered in first sensing serials 110, second sensing serials 120 and insulation projection 130 to form these raised designs B.In addition, formed element after the insulation projection 130, for example second sensing serials 120 and protective seam 140 for example all are disposed on the substrate 102 along the surface undulation of insulation projection 130.That is to say that second sensing serials 120 and protective seam 140 are all conformal in the surface of (conformal to) insulation projection 130 away from substrate 102.In addition, protective seam 140 also can be flatness layer.Thus, contact panel 100 can have comparatively desirable visual effect.
Can between first bridging line 114 and second bridging line 124, dispose an insulation course 132 so that first bridging line 114 and second bridging line 124 are electrically insulated when making insulation projection 130 with identical insulating material.In addition, embodiment described above in order to illustrate, is not in order to limit the present invention only.In other embodiment, if protective seam 140 is an organic material layer, then protective seam 140 not necessarily wants conformal in the surface of insulation projection 130 away from substrate 102, and can have a smooth surface.
In another embodiment, please be simultaneously with reference to Fig. 4 A~Fig. 4 C, the raised design B of contact panel 100 can be made of protective seam 140.In this embodiment, protective seam 140 can be patterned to form raised design B by a photoetching process.In addition, each first sensing serials 110 and each second sensing serials 120 can all be integrated designs, and first sensing serials 110 and second sensing serials 120 are disposed at the relative both sides of insulation course 132 respectively.
What deserves to be mentioned is that by the embodiment of the embodiment of Fig. 3 A~3C and Fig. 4 A~4C as can be known, raised design B is not limited to be made of which or which rete of contact panel 100.The every rete that can contain first sensing serials 110 and second sensing serials, 120 positions equably can be patterned to constitute raised design B of the present invention.Therefore, following embodiment will only be introduced the example that constitutes raised design B with insulation projection 130.But, have in the affiliated technical field and know that usually the knowledgeable knows, in the following embodiment, raised design B also can be only be made of the fluctuating of protective seam 140.
Please refer to Fig. 5 A~Fig. 5 C, in this embodiment, second bridging line 124 in the contact panel 100 for example is the bridging line of many strip metals, and first bridging line 114 for example is many transparent bridging lines.In addition, first sensor pad 112 and second sensor pad 122 for example all are disposed at the side that insulation projection 130 approaches substrate 102.By Fig. 5 A as can be known, the design that for example is formed in one in the present embodiment of first sensing serials 110.
In the embodiment of Fig. 5 A~Fig. 5 C, the production method of contact panel 100 for example is prior to forming first sensing serials 110 and second sensor pad 122 on the substrate 102.Then, on substrate 102, form insulation projection 130.Afterwards, form second bridging line 124 with a metal material.Second bridging line 124 is separated by the insulation course 132 and first bridging line 114 and is electrically insulated each other, and second bridging line, 124 contacts, second sensor pad 122 is to constitute second sensing serials 120.Thereupon, on substrate 102, form protective seam 140.Protective seam 140 for example can be conformal in insulation projection 130 and second bridging line 124 to form raised design B.In other embodiment, raised design B can certainly only be made of protective seam 140.
In addition, please refer to Fig. 6 A~Fig. 6 C, in the contact panel 100, second bridging line 124 is the metal bridge wiring, and first bridging line 114 is the transparent bridging line.In addition, be disposed at the side of insulation projection 130 as the metal bridge wiring of second bridging line 124, and first sensing serials 110 and second sensor pad 122 all are disposed at the side of insulation projection 130 away from substrate 102 near substrate 102.That is to say only have second bridging line 124 before insulation projection 130, to be formed in first sensing serials 110 and second sensing serials 120.
By Fig. 6 A~Fig. 6 C as can be known, first sensing serials 110, second sensor pad 122 and protective seam 140 conformal in fact in the insulation projection 130 to constitute a plurality of raised design B.But, under identical rete production order, can be only with protective seam 140 patternings to constitute raised design B.
Generally, by a plurality of embodiments described above as can be known, shown raised design B can be made of one of them rete in the contact panel 100 or conformally stacking institute by a plurality of retes constitutes among Fig. 2, and the present invention does not limit especially.In addition, in the topological design of reality, the insulation projection of being carried in the above embodiment 130 can be made by organic insulation or silicon nitride.When the material of insulation projection 130 was organic insulation, the thickness of insulation projection 130 for example was 1 μ m to 5 μ m.When the material of insulation projection 130 was silicon nitride, the thickness of insulation projection 130 for example was
Figure GSA00000022533500071
Extremely In addition, the material of protective seam 140 can be monox, and the thickness of protective seam 140 for example is
Figure GSA00000022533500073
Extremely
Figure GSA00000022533500081
Protective seam 140 can have smooth surface during for organic material need be for row in insulation projection 130.In addition, making first sensor pad 112, second sensor pad 122 and the employed transparent conductive material of transparent bridging line for example can be metal oxide, for example indium tin oxide, indium-zinc oxide, tin oxide etc. are made alloy or other metal or other alloy that the employed metal material of metal bridge wiring then for example has aluminium, silver, copper, molybdenum or above-mentioned metal.
In sum, the present invention is provided with the vision of a plurality of raised designs with fuzzy user in contact panel.So the gap between the sensing serials and the profile of sensing serials are not easy to be discovered by the user, and the visual effect when helping to improve the user and watching contact panel.Can avoid display effect to be subjected to negative effect when thus, contact panel is applied to touch control display apparatus.
Though the present invention discloses as above with embodiment; but it is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the present invention; when the change that can do some and retouching, so protection scope of the present invention is as the criterion when looking the accompanying Claim person of defining.

Claims (10)

1. contact panel, it is characterized in that: this contact panel comprises:
Many first sensing serials are disposed on the substrate, and respectively this first sensing serials is arranged along a first direction, and comprise a plurality of first sensor pads and many first bridging lines, and these many first bridging lines alternately are connected with these a plurality of first sensor pads;
Many second sensing serials, be disposed on this substrate, respectively this second sensing serials is arranged with staggered with these many first sensing serials along a second direction, and comprises a plurality of second sensor pads and many second bridging lines, and these many second bridging lines alternately are connected with these a plurality of second sensor pads; And
A plurality of raised designs, and these a plurality of raised designs are distributed in these many first sensing serials and these many second sensing serials positions randomly.
2. contact panel as claimed in claim 1 is characterized in that: the area of these a plurality of raised design orthogonal projection on this substrate is less than the area of these a plurality of first sensor pads and the area of these a plurality of second sensor pads.
3. contact panel as claimed in claim 1 is characterized in that: respectively this raised design comprises a transparent insulation projection, is disposed on this substrate.
4. contact panel as claimed in claim 3 is characterized in that: the material of these a plurality of insulation projections is transparent organic insulation, and the thickness of these a plurality of insulation projections is 1 μ m to 5 μ m.
5. contact panel as claimed in claim 3 is characterized in that: the material of these a plurality of insulation projections is a silicon nitride, and the thickness of these a plurality of insulation projections is 3000
Figure FSA00000022533400011
To 6000
Figure FSA00000022533400012
6. contact panel as claimed in claim 3 further comprises a protective seam, is disposed on this substrate and covering these many first sensing serials, these many second sensing serials and this a plurality of insulation projections.
7. contact panel as claimed in claim 1 is characterized in that: further comprise a protective seam, cover these many first sensing serials and these many second sensing serials, and this protective seam has this a plurality of raised designs.
8. contact panel as claimed in claim 1 is characterized in that: the distribution density of these a plurality of raised designs on this substrate is 5% to 30%.
9. contact panel as claimed in claim 1 is characterized in that: respectively the width of this raised design orthogonal projection on this substrate is 10 μ m to 100 μ m.
10. contact panel as claimed in claim 1 is characterized in that: respectively this raised design orthogonal projection is shaped as circle, similar round or polygon on this substrate.
CN201010115394A 2010-02-05 2010-02-05 Touch panel Pending CN101776969A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101950216A (en) * 2010-09-26 2011-01-19 友达光电股份有限公司 Making method of touch panel
CN103309480A (en) * 2012-03-07 2013-09-18 联胜(中国)科技有限公司 Touch control display panel
CN104932765A (en) * 2015-07-03 2015-09-23 合肥鑫晟光电科技有限公司 Capacitive touch screen and preparation method thereof and touch device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101950216A (en) * 2010-09-26 2011-01-19 友达光电股份有限公司 Making method of touch panel
CN103309480A (en) * 2012-03-07 2013-09-18 联胜(中国)科技有限公司 Touch control display panel
CN104932765A (en) * 2015-07-03 2015-09-23 合肥鑫晟光电科技有限公司 Capacitive touch screen and preparation method thereof and touch device

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Application publication date: 20100714