CN102262469A - Touch sensing panel, touch sensing display panel and manufacturing method of touch sensing panel - Google Patents
Touch sensing panel, touch sensing display panel and manufacturing method of touch sensing panel Download PDFInfo
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- CN102262469A CN102262469A CN2010101888271A CN201010188827A CN102262469A CN 102262469 A CN102262469 A CN 102262469A CN 2010101888271 A CN2010101888271 A CN 2010101888271A CN 201010188827 A CN201010188827 A CN 201010188827A CN 102262469 A CN102262469 A CN 102262469A
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Abstract
The invention relates to a touch sensing panel, a touch sensing display panel and a manufacturing method of touch sensing panel. The touch sensing panel comprises a polarizing plate, a plurality of first sensing serial lines, a plurality of second sensing serial lies and an insulation layer. The first sensing serial line and the second sensing serial line are arranged on the polarizing plate. Every first sensing serial line comprises a plurality of first sensing electrodes and a plurality of first bridging lines, and the first bridging line is serially connected with the first sensing electrode along a first direction. Every second sensing serial line comprises a plurality of second sensing electrodes and a plurality of second bridging lines, and the second bridging line is serially connected with the second sensing electrode along a second direction. The first sensing electrode and the second sensing electrode are located at the same plane and the first direction is not parallel with the second direction. The insulation layer is arranged between the first bridging line and the second bridging line so as to make the first bridging line insulate with the second bridging line. The invention adopts the manufacturing process without damaging the polarizing plate to manufacture the touch sensing component so as to make the touch sensing panel have the functions of polarizing, touching and sensing. The structure of the display panel is simple.
Description
Technical field
The present invention relates to the method for making of a kind of contact panel, touch-control display panel and contact panel, relate in particular to a kind of method for making that directly is made in contact panel, touch-control display panel and contact panel on the polaroid.
Background technology
Under information society now, many information products are by input medias such as traditional keyboard or mouses, change into and use contact panel (touch sensing panel) as input media, the touch-control display panel that wherein has touch-control and Presentation Function simultaneously becomes one of most popular product now especially.
Generally speaking, touch-control display panel comprises display panel and contact panel, and wherein contact panel can be affixed on directly outward on the display panel to simplify overall process.The adhesion glue that is adopted when but, subsides mode is in addition integrated display panel and contact panel tends to influence the display quality of display panel.Therefore especially, contact panel often uses hard substrate as supporting substrate, is easy to generate bubble in the process of adhesion attached contact panel of sticker and display panel and influences the display quality of touch-control display panel.In addition, the gap that is produced between display panel and the contact panel also will make the light penetration rate of display panel be even lower and can't satisfy the demand of high display brightness.
Summary of the invention
The purpose of this invention is to provide a kind of contact panel, have the polarisation function and can be used as the polaroid in the display panel and have the touch-control sensing function simultaneously.
The purpose of this invention is to provide a kind of touch-control display panel, the mode that does not need additionally to attach substrate is integrated contact panel and display panel.
The method for making that the purpose of this invention is to provide a kind of contact panel does not need to adopt any micro image etching procedure and high temperature process, is difficult for causing the damage of supporting substrate.
The invention provides a kind of contact panel, comprise a polaroid, many first sensing serials, many second sensing serials and an insulation course.First sensing serials is disposed on the polaroid.Each first sensing serials comprises a plurality of first sensing electrodes and a plurality of first bridging line, and first bridging line is connected in series first sensing electrode along a first direction.Second sensing serials is disposed on the polaroid.Each second sensing serials comprises a plurality of second sensing electrodes and a plurality of second bridging line, and second bridging line is connected in series second sensing electrode along a second direction, and wherein first sensing electrode and the second sensing electrode copline and first direction are not parallel to second direction.Insulation course is disposed between first bridging line and second bridging line so that first bridging line is electrically insulated from second bridging line.
The present invention provides a kind of touch-control display panel again, comprises a display panel, aforesaid contact panel and an optical cement.First sensing serials and second sensing serials are established towards display panel.Optical cement is disposed between display panel and the contact panel.
The present invention provides a kind of method for making of contact panel again, comprises following making step.On a polaroid, form a transparency conducting layer.Carry out a patterning process transparency conducting layer is patterned to many first sensing serials and a plurality of second sensing electrode, wherein each first sensing serials comprises a plurality of first sensing electrodes and a plurality of first bridging line, and first bridging line is connected in series first sensing electrode along a first direction.On polaroid, form an insulation course, the corresponding at least first bridging line position of insulation course and establishing.Form a plurality of second bridging lines, and second bridging line is connected in series second sensing electrode to form many second sensing serials of extending along a second direction, wherein first bridging line and second bridging line are electrically insulated by insulation course.
Based on above-mentioned, the present invention adopts the fabrication steps do not damage polaroid to make touch control component, so touch control component can directly be made on the polaroid and makes contact panel have the function of polarisation and touch-control sensing.In addition, contact panel of the present invention is disposed at the structure that helps to simplify touch-control display panel on the display panel, and its thickness of thinning.Touch control display apparatus also can be kept good display quality.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the touch-control display panel of one embodiment of the invention.
Fig. 2 is the diagrammatic cross-section of the touch-control display panel of another embodiment of the present invention.
Fig. 3 A to Fig. 3 C be the contact panel of one embodiment of the invention make flow process on look synoptic diagram.
Fig. 4 is a kind of cross-sectional view that the contact panel of Fig. 3 C is drawn along hatching line A-A '.
Fig. 5 is the diagrammatic cross-section that the contact panel of Fig. 3 C is presented along hatching line A-A ' when making with another kind of process sequence.
Fig. 6 is the contact panel cross-section structure of further embodiment of this invention.
The main element symbol description:
10,20: touch-control display panel; 100,100A, 100B: contact panel;
102: touch control component; 104: the conducting resinl material;
106: circuit board; 110: polaroid;
120: the first sensing serials; 122: the first sensing electrodes;
Bridging line in 124: the first; 130: the second sensing serials;
132: the second sensing electrodes; Bridging line in 134: the second;
140: transfer wire; 150: insulation course;
152,154: insulating pattern; 200: display panel;
202: the first substrates; 204: the second substrates;
206: display dielectric layer; 300: optical cement;
400: following polaroid; 500: the guarded electrode layer;
D1: first direction; D2: second direction.
Embodiment
Fig. 1 is the diagrammatic cross-section of the touch-control display panel of one embodiment of the invention.Please refer to Fig. 1, touch-control display panel 10 comprises a contact panel 100, a display panel 200 and an optical cement 300.Optical cement 300 is disposed between contact panel 100 and the display panel 200 so that contact panel 100 and display panel 200 are fit together.In the present embodiment, contact panel 100 for example adopts polaroid 110 to have the polarisation function as supporting substrate.
Particularly, contact panel 100 for example is made of polaroid 110 and the touch control component 102 that is disposed on the polaroid 110, and display panel 200 is for example by first substrate 202, second substrate 204, and the display dielectric layer 206 that is sandwiched between first substrate 202 and second substrate 204 constitutes.In addition, in order to carry out touch-control sensing, the touch control component 102 of contact panel 100 also can be electrically connected to a circuit board 106 by a conducting resinl material 104, and wherein conducting resinl material 104 can be commonly used to connect the grafting material of conducting element in this area such as anisotropic conductive.
In the present embodiment, contact panel 100 has the polarisation function, so when display dielectric layer 206 is liquid crystal layer, only need to dispose the Presentation Function that polaroid 400 just can reach display panels at first substrate 202 away from a side of display dielectric layer 206.In addition, touch-control display panel 10 need not to use outside polaroid 110 other supporting substrate to be used as the supporting substrate of contact panel 100, and helps to simplify the structure of touch-control display panel 10 and reduce its thickness.Thus, the display brightness of touch-control display panel 10 can not be subjected to negative influence because of the attaching of a plurality of substrates.Especially, polaroid 110 has the characteristic of deflection, thus be not easy to produce bubble when utilizing optical cement 300 to be attached at contact panel 100 on the display panel 200, thereby the display quality of touch-control display panel 10 can not be subjected to bad influence.In one embodiment, the thickness of optical cement 300 for example can be greater than 50 μ m or even greater than 175 μ m, wherein the thick more sensitivity that helps keeping contact panel 100 more of the thickness of optical cement 300.In addition, the material of optical cement 300 can be that (pressure sensitive adhesion abbreviates as: PSA) a transparent pressure-sensing glue.
Fig. 2 is the diagrammatic cross-section of the touch-control display panel of another embodiment of the present invention.Please refer to Fig. 2, touch-control display panel 20 is roughly the same with touch-control display panel 10, but touch-control display panel 20 also includes the guarded electrode layer 500 that is arranged between display panel 200 and the contact panel 100.Guarded electrode layer 500 for example is in the present embodiment between optical cement 300 and display panel 200, and guarded electrode layer 500 can be connected to a set potential, an earthing potential or a high resistance.Therefore, the signal that the signal that can avoid contact panel 100 and display panel 200 are set of guarded electrode layer 500 is interfering with each other and help to improve the quality of touch-control display panel 20.
What deserves to be mentioned is, all adopt the supporting substrate of polaroid 110 in touch-control display panel 10 and the touch-control display panel 20 as contact panel 100.So structurally touch-control display panel 10 has comparatively simply design with touch-control display panel 20, and the display quality of touch-control display panel 10 and touch-control display panel 20 can not be subjected to negative influence because of the setting of contact panel 100 yet.But, the described mode of above embodiment is not in order to limit the application mode of contact panel 100.In other embodiment, contact panel 100 also can be applied to use in other two-d display panels of non-display panels or individually.In addition, for the structural design and the characteristic thereof that clearly demonstrate contact panel 100, following content will be specifically described.
Fig. 3 A to Fig. 3 C be the contact panel of one embodiment of the invention make flow process on look synoptic diagram.Please earlier with reference to Fig. 3 A, on polaroid 110, form a transparency conducting layer (not shown) earlier, and carry out a patterning process the transparency conducting layer (not shown) is divided into many first sensing serials 120 and a plurality of second sensing electrode 132, wherein each first sensing serials 120 comprises a plurality of first sensing electrodes 122 and a plurality of first bridging line 124, and first bridging line 124 is connected in series first sensing electrode 122 along a first direction D1.That is to say that first sensing electrode 122 and second sensing electrode 132 are by forming with one deck conductive layer patternization, so first sensing electrode 122 and second sensing electrode 132 are the isoplanar.
Present embodiment for example is to adopt the low temperature sputter process to form the transparency conducting layer (not shown), and comes the patterned transparent conductive layer (not shown) to form first sensing serials 120 and second sensing electrode 132 with the cut processing procedure.At this, the process temperatures of so-called low temperature sputter process for example is 30 ℃ to 40 ℃, and the material of transparency conducting layer (not shown) for example is indium tin oxide or indium-zinc oxide or other transparent conductive material.In the present embodiment, first sensing serials 120 and second sensing electrode 132 do not need to be made in hot conditions (for example hundreds of ℃) and do not need to carry out patterning to have corrosive etching solution yet, so polaroid 110 can not suffer damage in this step and still possess the good polarisation character and the characteristic of deflection.
Then, please refer to Fig. 3 B, form an insulation course 150 on polaroid 110, it is made up of a plurality of insulating pattern 152 at least.Particularly, the allocation position of insulating pattern 152 for example is corresponding first bridging line, 124 positions and establishing.In addition, insulation course 150 for example exposes the part area of second sensing electrode 132 at least.
In the present embodiment, the production method of insulation course 150 for example is to adopt printing process that the insulating material of specific pattern is formed on the polaroid 110.So insulation course 150 need not use micro image etching procedure to come patterning to form specific insulating pattern 152.In other words, insulation course 150 need not adopt and have corrosive etching solution and come patterning and can not damage polaroid 110.
Thereupon, please refer to Fig. 3 C, on polaroid 110, form a plurality of second bridging lines 134 to finish contact panel 100.Second bridging line, 134 serial connections, second sensing electrode 132 is to form many second sensing serials 130 of extending along a second direction D2, and wherein first bridging line 124 and second bridging line 134 are electrically insulated by the insulating pattern in the insulation course 150 152.That is to say that second bridging line 134 comes down to be formed on insulating pattern 152 positions.
In the present embodiment, the method that forms second bridging line 134 for example is by another printing process second bridging line 134 to be formed on the polaroid 110.Specifically, form insulation course 150 and form second bridging line, 134 employed printing process and can have spray printing processing procedure, transfer printing processing procedure, screen painting processing procedure etc. specific pattern directly can be formed at processing procedure on the polaroid 110.In addition, the material of second bridging line 134 can be that elargol, CNT, indium tin oxide particle, nanometer filamentary silver etc. can directly be printed in the conductor material on the polaroid 110.What deserves to be mentioned is that the method for making of second bridging line 134 does not need to adopt micro image etching procedure yet, thereby can not cause damage polaroid 110.
In addition, for example be formed with many transfer wires 140 when forming second bridging line 134, it connects wherein one first sensing serials 120 or one second sensing serials 130 wherein respectively.Particularly, contact panel 100 for example is a kind of projecting type capacitor contact panel.So contact panel 100 can adopt the driving method for sensing of existing projecting type capacitor contact panel to carry out the touch-control sensing function.
The situation that present embodiment adopts printing process to form to have in the process of second bridging line 134 and transfer wire 140 the material maldistribution to claim takes place.For example, in the spray printing processing procedure, the phenomenon of buildup all may take place in the starting point of spray printing pattern, terminal point and corner.So, second bridging line 134 and transfer wire 140 in the end and the corner have the vestige of buildup, just have the bigger area and the width of broad.Present the thin aspect in central thick both sides if cut the section that second bridging line 134 also may find second bridging line 134 along first direction D1.In addition, compared to the formed pattern of micro image etching procedure, the edge of second bridging line 134 and transfer wire 140 presents comparatively fuzzy profile, or claims the burr phenomenon.That is to say the edge contour of second bridging line 134 and transfer wire 140 relatively comparatively unintelligible (not sharp).
Fig. 4 is a kind of cross-sectional view that the contact panel of Fig. 3 C is drawn along hatching line A-A '.Please be simultaneously with reference to Fig. 3 C and Fig. 4, in fact insulation course 150 can comprise insulating pattern 152 and insulating pattern 154, wherein insulating pattern 152 is disposed between first bridging line 124 and second bridging line 134, and insulating pattern 154 for example covers second sensing electrode 132.In the section of other direction, insulating pattern 154 can also cover first sensing electrode 122.In addition, insulating pattern 152 exposes the second local sensing electrode 132 so that second sensing electrode 132 directly contacts with second bridging line 134 with gap between the insulating pattern 154.
Among the above embodiment, transparency conducting layer (comprising first sensing serials 120 and second sensing electrode 132), insulation course 150 and second bridging line 134 are formed on the polaroid 110 in order.But, the present invention is not limited to adopt and makes contact panel 100 with such an order.For example, in other embodiment, the production order of contact panel 100 can be to make second bridging line 134, insulation course 150 and transparency conducting layer (comprising first sensing serials 120 and second sensing electrode 132) be formed in order on the polaroid 110.Therefore, Fig. 5 is the diagrammatic cross-section that the contact panel of Fig. 3 C is presented along hatching line A-A ' when making with another kind of process sequence.
Please be simultaneously with reference to Fig. 5, under another kind of process sequence, second bridging line 134 of contact panel 100A directly is disposed on the polaroid 110 earlier.Then, on polaroid 110, form insulating pattern 152, and the position of insulating pattern 152 is positioned at second bridging line, 134 positions.In addition, insulating pattern 152 for example exposes the two ends of each bar second bridging line 134.Afterwards, whole ground forms a transparency conducting layer (not shown), and with a cut processing procedure transparency conducting layer (not shown) is cut into first sensing serials (comprising unshowned first sensing electrode and first bridging line 124) and second sensing electrode 132.Because insulating pattern 152 exposes the two ends of each bar second bridging line 134, the two ends of second bridging line 134 can directly contact second sensing electrode 132, and constitute second sensing serials 130.
In the method for making of present embodiment, the insulating pattern 152 and second bridging line 134 all adopt printing process to be made, and the transparency conducting layer (not shown) is to form required pattern with the cut processing procedure.Therefore, need not use in the overall process to have corrosive etching solution, and polaroid 110 is not suffered damage.In addition, the transparency conducting layer (not shown) can adopt the low temperature sputter process to be made and can guarantee that more the making step of contact panel 100A can not produce negative influence to polaroid 110.That is to say that contact panel 100 and contact panel 100A can complete and with the function of function, polarisation function and the deflection of touch-control sensing under the processing procedure that does not damage polaroid 110.
In addition, Fig. 6 is the contact panel cross-section structure of further embodiment of this invention.Please refer to Fig. 6, contact panel 100B is made with identical making step with contact panel 100A in fact.So contact panel 100B and contact panel 100A are roughly the same, but the insulation course 150 of contact panel 100B also comprises a plurality of insulating patterns 154.Insulating pattern 154 is positioned at place, sensing electrode (comprising second sensing electrode 132 and unshowned first sensing electrode) place in fact.
Similarly, the high temperature process that does not adopt hundreds of degree in the manufacturing process of contact panel 100B also adopts has corrosive etching solution, so polaroid 110 can not be damaged in fabrication steps.Thus, contact panel 100B is also with the function of touch-control sensing and the function of polarisation.
In sum, the method that the present invention makes contact panel does not adopt any micro image etching procedure fully, and transparent conductive layer can adopt the fabrication steps of low temperature to be made.Therefore, the manufacturing process of contact panel is not easy to damage supporting substrate, and can adopt polaroid etc. for the relatively poor substrate manufacture contact panel of the degree of holding of temperature.Adopting polaroid made contact panel directly to be attached at can provide the polarisation effect also can provide touch controllable function on the display panel, and helps to simplify the structural design of touch-control display panel.
Though the present invention discloses as above with embodiment; but it is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; can suitably change or be equal to replacement, so protection scope of the present invention should be as the criterion with the scope that claims were defined.
Claims (12)
1. a contact panel is characterized in that, comprising:
One polaroid;
Many first sensing serials are disposed on the described polaroid, and each described first sensing serials comprises a plurality of first sensing electrodes and a plurality of first bridging line, and described a plurality of first bridging lines are connected in series described a plurality of first sensing electrode along a first direction;
Many second sensing serials, be disposed on the described polaroid, each described second sensing serials comprises a plurality of second sensing electrodes and a plurality of second bridging line, described a plurality of second bridging line is connected in series described a plurality of second sensing electrode along a second direction, and wherein said a plurality of first sensing electrodes and described a plurality of second sensing electrode coplines and described first direction are not parallel to described second direction; And
One insulation course is disposed between described a plurality of first bridging line and described a plurality of second bridging line so that described a plurality of first bridging line is electrically insulated from described a plurality of second bridging line.
2. contact panel according to claim 1 is characterized in that, described insulation course and described a plurality of second bridging line are made by a printing process.
3. contact panel according to claim 1 is characterized in that, the material of described a plurality of first bridging lines is same as the material of described a plurality of first sensing electrode and described a plurality of second sensing electrodes.
4. contact panel according to claim 1 is characterized in that described insulation course comprises a plurality of insulating patterns, and described a plurality of insulating patterns are between described a plurality of first bridging lines and described a plurality of second bridging line.
5. a touch-control display panel is characterized in that, comprising:
One display panel;
Each described contact panel in the claim 1 to 4, and described many first sensing serials and described many second sensing serials are established towards described display panel; And an optical cement, be disposed between described display panel and the described contact panel.
6. touch-control display panel according to claim 5 is characterized in that, also comprises a guarded electrode layer, be disposed between described display panel and the described contact panel, and described guarded electrode layer is connected to a set potential, an earthing potential or a high impedance.
7. the method for making of a contact panel is characterized in that, comprising:
On a polaroid, form a transparency conducting layer;
Carry out a patterning process described transparency conducting layer is patterned to many first sensing serials and a plurality of second sensing electrode, wherein each described first sensing serials comprises a plurality of first sensing electrodes and a plurality of first bridging line, and described a plurality of first bridging line is connected in series described a plurality of first sensing electrode along a first direction;
On described polaroid, form an insulation course, corresponding described a plurality of first bridging line positions and establishing; And
Form a plurality of second bridging lines, described a plurality of second bridging line is connected in series described a plurality of second sensing electrode to form many second sensing serials of extending along a second direction, and wherein said a plurality of first bridging lines and described a plurality of second bridging line are electrically insulated by described insulation course.
8. the method for making of contact panel according to claim 7 is characterized in that, described patterning process comprises a cut processing procedure.
9. the method for making of contact panel according to claim 7 is characterized in that, the method that forms described insulation course and form described a plurality of second bridging lines comprises a printing process.
10. the method for making of contact panel according to claim 7 is characterized in that, described transparency conducting layer, described insulation course and described a plurality of second bridging line form in order.
11. the method for making of contact panel according to claim 7 is characterized in that, described a plurality of second bridging lines, described insulation course and described transparency conducting layer form in order.
12. the method for making of contact panel according to claim 7, it is characterized in that, the method that forms described insulation course comprises a plurality of insulating patterns of formation, so that described a plurality of insulating pattern is between described a plurality of first bridging lines and described a plurality of second bridging line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101888271A CN102262469A (en) | 2010-05-25 | 2010-05-25 | Touch sensing panel, touch sensing display panel and manufacturing method of touch sensing panel |
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| CN2010101888271A CN102262469A (en) | 2010-05-25 | 2010-05-25 | Touch sensing panel, touch sensing display panel and manufacturing method of touch sensing panel |
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| CN2010101888271A Pending CN102262469A (en) | 2010-05-25 | 2010-05-25 | Touch sensing panel, touch sensing display panel and manufacturing method of touch sensing panel |
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| WO2014000711A1 (en) * | 2012-06-29 | 2014-01-03 | 华为终端有限公司 | Projection-type capacitive touch screen and preparation method thereof |
| CN103543871A (en) * | 2012-07-12 | 2014-01-29 | 杰圣科技股份有限公司 | Touch panel and manufacturing method thereof |
| CN103677462A (en) * | 2012-09-03 | 2014-03-26 | 杰圣科技股份有限公司 | Touch panel and manufacturing method thereof |
| CN103699252A (en) * | 2012-09-27 | 2014-04-02 | 宝宸（厦门）光学科技有限公司 | Touch device structure and manufacturing method thereof |
| CN104142745A (en) * | 2013-05-09 | 2014-11-12 | 瀚宇彩晶股份有限公司 | Touch panel and touch display |
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| WO2014000711A1 (en) * | 2012-06-29 | 2014-01-03 | 华为终端有限公司 | Projection-type capacitive touch screen and preparation method thereof |
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| CN108089745A (en) * | 2017-11-21 | 2018-05-29 | 张家港康得新光电材料有限公司 | Touch-control display module and its applying method |
| CN108089745B (en) * | 2017-11-21 | 2021-04-02 | 张家港康得新光电材料有限公司 | Touch display assembly and attaching method thereof |
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Application publication date: 20111130 |