CN105022520A - Touch panel and touch display apparatus - Google Patents

Touch panel and touch display apparatus Download PDF

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Publication number
CN105022520A
CN105022520A CN201410180687.1A CN201410180687A CN105022520A CN 105022520 A CN105022520 A CN 105022520A CN 201410180687 A CN201410180687 A CN 201410180687A CN 105022520 A CN105022520 A CN 105022520A
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CN
China
Prior art keywords
ground loop
contact panel
extension
touch
end
Prior art date
Application number
CN201410180687.1A
Other languages
Chinese (zh)
Inventor
陈雅铃
许苇亭
曾光莹
陈志昌
郑秉绪
简传枝
Original Assignee
群创光电股份有限公司
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 群创光电股份有限公司 filed Critical 群创光电股份有限公司
Priority to CN201410180687.1A priority Critical patent/CN105022520A/en
Publication of CN105022520A publication Critical patent/CN105022520A/en

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Abstract

The invention provides a touch panel, comprising a substrate with a touch region and a peripheral region surrounding the touch region, a touch electrode array configured in the touch region, and a grounding ring configured in the peripheral region, surrounding the touch region and electrically connected with a capacitive element.

Description

Contact panel and touch control display apparatus

Technical field

The present invention relates to a kind of contact panel, and particularly relate to the contact panel and touch control display apparatus with ground loop.

Background technology

Contact panel (touch panel) has been widely used in end sale system (POS, Point ofSales), the electronic installation such as arcade game, hand-held electronic product, especially end sale system is more common in the places such as large-scale sales field, department store, eating and drinking establishment.

Due to electrostatic (ESD, Electrostatic Discharge) can be produced in atmospheric environment, electrostatic is also made easily to be accumulated in contact panel.The existence of electrostatic can cause contact panel to produce some problems, for end sale system, if its touch control screen has buildup of static electricity, except the mean time between failures value (MTBF of contact panel may be accelerated, Mean Time Between Failures) and aging ahead of time, also easily cause system in use to crash, also can produce the risk of Missing data what is more.

Therefore, the problem of improvement contact panel buildup of static electricity is on the market needed at present badly.

Summary of the invention

For solving the problem, the invention provides a kind of contact panel and comprising: a substrate, have a Touch Zone and a surrounding zone, wherein surrounding zone is around Touch Zone; One touch control electrode array, is configured in Touch Zone; And a ground loop, to be configured in surrounding zone and around Touch Zone, and ground loop is electrically connected a capacity cell.

One embodiment of the invention provides a kind of touch control display apparatus to comprise: a display panel, and have a viewing area and a non-display area, wherein non-display area is around viewing area; One contact panel, be configured on display panel, wherein contact panel comprises: a substrate, and have a Touch Zone and a surrounding zone, wherein surrounding zone is around Touch Zone, and Touch Zone is positioned at above viewing area, and surrounding zone is positioned at above non-display area; One touch control electrode array, is configured in Touch Zone; And a ground loop, to be configured in surrounding zone and around Touch Zone, and ground loop is electrically connected a capacity cell.

Accompanying drawing explanation

Fig. 1 is the top view of the contact panel of one embodiment of the invention;

Fig. 2 A is the enlarged drawing that Fig. 1 is positioned at the structure of region A;

Fig. 2 B is the cut-open view of Fig. 2 A structure along line section I-I ';

Fig. 3 is the top view of the contact panel of one embodiment of the invention;

Fig. 4 A is the enlarged drawing that Fig. 3 is positioned at the structure of region A;

Fig. 4 B is the cut-open view of Fig. 4 A structure along line section I-I ';

Fig. 5 is the cut-open view of one embodiment of the invention touch control display apparatus.

Symbol description

100,300,520 contact panels

110 substrates

112 Touch Zones

114 surrounding zones

120 touch control electrode arrays

122 first touch control electrode

122a connecting portion

124 second touch control electrode

124a bridge part

126 insulation courses

130,130a ground loop

132 first ends

132a first extension

134 the second ends

134a second extension

136,136a gap

138a first discharge tip

138b second discharge tip

138c gap

140 signal leads

150,150a capacity cell

152,152a insulation course

154,154a conductive layer

500 touch control display apparatus

510 display panels

A region

D, d1 spacing

W, W1, W2 width

Embodiment

Making and the use-pattern of the embodiment of the present invention will be described in detail below.But it should be noted, the invention provides many inventive concepts for application, it can multiple specific pattern be implemented.In literary composition illustrate discuss specific embodiment be only manufacture with use ad hoc fashion of the present invention, be not used to limit the scope of the invention.In addition, label or the sign of repetition may be used in different embodiments.These repeat only clearly to describe the present invention in order to simple, do not represent between discussed different embodiment and/or structure and have any association.Moreover, when address one first material layer to be positioned on one second material layer or on time, comprise the first material layer directly contacted or to be separated with one or more other materials layer situation with the second material layer.In the drawings, the shape of embodiment or thickness may expand, to simplify or to highlight its feature.Moreover the element not illustrating in figure or describe, can be in art the arbitrary form having and usually know known to the knowledgeable.

Fig. 1 illustrates the top view of the contact panel of one embodiment of the invention.Please refer to Fig. 1, the contact panel 100 of the present embodiment comprises substrate 110, touch control electrode array 120 and a ground loop 130.Substrate 110 can have Touch Zone 112 and a surrounding zone 114, and wherein surrounding zone 114 is around Touch Zone 112.The material of substrate 110 is such as glass or macromolecular material etc.For example, the material of substrate 110 comprises ethylene terephthalate (PET), polyethersulfone (PES), polyacrylate (PAR), PEN (PEN), polyphenylene sulfide (PPS), polyallyl (polyallylate), polycarbonate (PC) or its analog.Substrate 110 can be hard substrate or flexible substrate.Substrate 110 can be flat shape, curve form or other shapes be applicable to.

Touch control electrode array 120 is configured in Touch Zone 112.In one embodiment, touch control electrode array 120 comprises multiple the first touch control electrode 122 along X-direction arrangement, multiple connecting portion 122a, multiple the second touch control electrode 124 along Y direction arrangement, multiple bridge part 124a and an insulation course 126.Connecting portion 122a connects adjacent two first touch control electrode 122, and bridge part 124a connects adjacent two second touch control electrode 124.Insulation course 126, between connecting portion 122a and bridge part 124a, is mutually electrically insulated to make connecting portion 122a and bridge part 124a.In the embodiment that other do not illustrate, touch control electrode array 120 also can be other types touch control electrode array (such as only have along X-direction arrangement touch control electrode or only have along Y direction arrangement touch control electrode, also or namely unitary electrode pad connects the copline touch control electrode of a signal wire).

The material of the first touch control electrode 122, connecting portion 122a and the second touch control electrode 124 comprises tin indium oxide (indium tin oxide, ITO), indium zinc oxide (indium zinc oxide, IZO) or other transparent conductive materials be applicable to.The material of bridge part 124a is such as the material that metal (such as silver or aluminium), transparent conductive material (such as indium tin oxide (ITO)) or other conduction properties are good.

Contact panel 100 can comprise many barss lead-in wire 140, and signal lead 140 to be configured on substrate 110 and to be positioned at surrounding zone 114.One end of each signal lead 140 connects the first touch control electrode 122 or the second touch control electrode 124, and the other end of each signal lead 140 is collected to side, Touch Zone 112, engages with wiring board bendable with in subsequent manufacturing processes.Signal lead 140 is electrically insulated each other.The material of signal lead 140 comprises metal (such as silver or aluminium), transparent conductive material (such as indium tin oxide) or aforesaid combination.

The ground loop 130 of the present embodiment to be configured in surrounding zone 114 and around Touch Zone 112, and ground loop 130 is electrically connected a capacity cell 150, and electric connection mode is such as being connected in series.The material of ground loop 130 comprises metal (such as silver or aluminium), transparent conductive material (such as indium tin oxide (ITO)) or aforesaid combination.

Fig. 2 A illustrates the enlarged drawing being positioned at the structure of region A of Fig. 1.Fig. 2 B illustrates the cut-open view of the structure along line section I-I ' of Fig. 2 A.Specifically, referring to Fig. 1, Fig. 2 A, Fig. 2 B, in the present embodiment, ground loop 130 is positioned on a surface 116 of substrate 110.In the present embodiment, ground loop 130 has first end 132 and a second end 134.First end 132 and the second end 134 are separated in one gap 136.One insulation course 152 blind 136 also partly covers first end 132 and the second end 134.One conductive layer 154 connect first end 132 and to extend on insulation course 152 and on vertical projection direction lap the second end 134.It should be noted that in this exposure book, " vertical projection direction " is the direction of representative perpendicular to the surface 116 of substrate 110.The part that wherein conductive layer 154, insulation course 152 are overlapping on vertical projection direction with the second end 134 forms capacity cell 150, and the second end 134 of ground loop 130 and conductive layer 154 are respectively two termination electrodes of capacity cell 150, capacity cell 150 is electrically connected to ground loop 130 by conductive layer 154 and the second end 134.In one embodiment, first end 132, the second end 134 and the insulation course 152 that is sandwiched in therebetween also visual become the part (sub-electric capacity) of capacity cell 150.

In one embodiment, the material of insulation course 152 is organic insulation or inorganic insulating material.In one embodiment, the material of insulation course 152 is macromolecular material.In one embodiment, the material of insulation course 152 comprises photo anti-corrosion agent material.In one embodiment, the specific inductive capacity of insulation course 152 is about 3 to 4.

It should be noted that, because the ground loop 130 of the present embodiment is electrically connected capacity cell 150 in addition, therefore, to produce in manufacture craft or originally the static charge be present in atmospheric environment not only can be stored in ground loop 130 and also can be stored in capacity cell 150, therefore can effectively avoid static charge to wound touch control electrode array 120 in Touch Zone 112.Therefore, the contact panel 100 of the present embodiment can bear sizable electrostatic potential (being greater than 2kV).Capacity cell 150 effectively can promote the antistatic capacity of the contact panel 100 of the present embodiment.

In addition, the present embodiment according to actual demand, can adjust the capacitance of capacity cell 150 by adjustment conductive layer 154 and the overlapping area of the second end 134 and the material of spacing d and insulation course 152.In one embodiment, the contact panel 100 with ground loop 130 and capacity cell 150 can tolerate the electrostatic potential of 2kV to 6kV.In one embodiment, conductive layer 154 is about more than or equal to 30000 μm with the overlapping area of the second end 134 2.

In one embodiment, the width W in gap 136 is about 4 microns to 10 microns.In one embodiment, the width W in gap 136 is about 4 microns to 5 microns.In one embodiment, the spacing d between conductive layer 154 and the second end 134 is about 1 micron to 2 microns.

In one embodiment, the material of conductive layer 154 is different from the material of ground loop 130.In the present embodiment, the material of ground loop 130 is transparent conductive material, and the material of conductive layer 154 is metal.Ground loop 130 can be formed in same manufacturing process steps with the first touch control electrode 122, connecting portion 122a and the second touch control electrode 124, and conductive layer 154 can be formed in same manufacturing process steps with bridge part 124a.

The material of ground loop 130 and conductive layer 154 can adjust to some extent according to the manufacture craft sequencing of touch control electrode 122,124 and bridge part 124a.For example, (do not illustrate) in another embodiment, first form bridge part 124a, just form touch control electrode 122,124 afterwards, therefore, the material of ground loop 130 is identical with bridge part 124a (such as: metal), material and touch control electrode 122,124 identical (such as: transparent conductive material) of conductive layer 154.In one embodiment, the material of conductive layer 154 also can be same as the material of ground loop 130.

Fig. 3 illustrates the top view of the contact panel of one embodiment of the invention.It should be noted that, as shown in Figure 3, the contact panel 300 of the present embodiment is similar in appearance to the contact panel 100 of Fig. 1, and both difference part is that the ground loop 130a of the present embodiment and capacity cell 150a is different from ground loop 130 and the capacity cell 150 of the contact panel 100 of Fig. 1.

Specifically, in the present embodiment, ground loop 130a has one first discharge tip (discharging tip) 138a and one second discharge tip 138b respect to one another, and a gap 138c separates the first discharge tip 138a and the second discharge tip 138b.In one embodiment, the width W 1 of gap 138c is about 10 microns to 20 microns.

When as the first discharge tip 138a and the second discharge tip 138b, one of them makes voltage difference between the two be greater than certain value because of accumulation electrostatic, accumulation has the discharge tip of electrostatic (high-pressure side) to produce point discharge and makes charge-conduction to the discharge tip (low pressure end) of not accumulation electrostatic.Afterwards, can by low pressure end ground connection with by static charge diversion ground loop 130a.

Fig. 4 A illustrates the enlarged drawing being positioned at the structure of region A of Fig. 3.Fig. 4 B illustrates the cut-open view of the structure along line section I-I ' of Fig. 4 A.Referring to Fig. 3, Fig. 4 A, Fig. 4 B, in the present embodiment, ground loop 130a has one first extension 132a and one second extension 134a.First extension 132a is extended by the side of the first discharge tip 138a, and the second extension 134a is extended by the side of the second discharge tip 138b.One gap 136a separates the first extension 132a and the second extension 134a.

One insulation course 152a blind 136a also partly covers the first extension 132a and the second extension 134a.One conductive layer 154a connects the first extension 132a and to extend on insulation course 152a and on vertical projection direction, to be overlapped in part second extension 134a.The part that wherein conductive layer 154a, insulation course 152a are overlapping on vertical projection direction with the second extension 134a forms capacity cell 150a, and the second extension 134a of ground loop 130a and conductive layer 154a is respectively two termination electrodes of capacity cell 150a, capacity cell 150a is electrically connected to ground loop 130a by conductive layer 154a and the second extension 134a.In one embodiment, the first extension 132a, the second extension 134a and the insulation course 152a be sandwiched in therebetween also visual become a part (sub-electric capacity) of capacity cell 150a.

It should be noted that, because the ground loop 130a of the present embodiment is electrically connected capacity cell 150a in addition, therefore, in manufacture craft, generation or the script static charge be present in atmospheric environment not only can be stored in ground loop 130a and also can be stored in capacity cell 150a, therefore, the contact panel 300 of the present embodiment can bear sizable electrostatic potential (being greater than 2kV).Capacity cell 150a effectively can promote the antistatic capacity of the contact panel 300 of the present embodiment.

In one embodiment, the width W 2 of gap 136a is about 4 microns to 10 microns.In one embodiment, the width W 2 of gap 136a is about 4 microns to 5 microns.In one embodiment, the spacing d1 between conductive layer 154a and the second extension 134a is about 1 micron to 2 microns.In one embodiment, the material of conductive layer 154a is different from the material of ground loop 130a.In one embodiment, the material of conductive layer 154a also can be same as the material of ground loop 130a.

Fig. 5 illustrates the cut-open view of the touch control display apparatus of one embodiment of the invention.Please refer to Fig. 5, the touch control display apparatus 500 of the present embodiment comprises display panel 510 and a contact panel 520.Display panel 510 is such as display panels, organic LED display panel or other display panels be applicable to.Contact panel 520 is configured on display panel 510.Contact panel 520 can the contact panel 100 of Fig. 1 or the contact panel of Fig. 3 300.

In sum, because ground loop of the present invention is electrically connected capacity cell in addition, therefore, to produce in manufacture craft or originally the static charge be present in atmospheric environment not only can be stored in ground loop and also can be stored in capacity cell.Therefore, contact panel of the present invention can bear sizable electrostatic potential.Capacity cell effectively can promote the antistatic capacity of contact panel of the present invention.

Although disclose the present invention in conjunction with above preferred embodiment; but itself and be not used to limit scope of the present invention; have in any art and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, what therefore protection scope of the present invention should define with the claim of enclosing is as the criterion.

Claims (10)

1. a contact panel, comprising:
Substrate, has Touch Zone and surrounding zone, and wherein this surrounding zone is around this Touch Zone;
Touch control electrode array, is placed in this Touch Zone; And
Ground loop, to be configured in this surrounding zone and around this Touch Zone, and this ground loop is electrically connected a capacity cell.
2. contact panel as claimed in claim 1, wherein at least one termination electrode of this capacity cell is an end of this ground loop or an extension of this ground loop.
3. contact panel as claimed in claim 1, wherein this ground loop has first end and the second end, this first end and this second end are separated in one gap, one insulation course covers this second end, one conductive layer connects this first end and to extend on this insulation course and this second end overlapping, and this conductive layer, this insulation course and this second end form this capacity cell.
4. contact panel as claimed in claim 3, wherein the material of this conductive layer is different from the material of this ground loop.
5. contact panel as claimed in claim 3, the spacing wherein between this conductive layer and this second end is about 1 micron to 2 microns.
6. contact panel as claimed in claim 1, wherein this ground loop has the first discharge tip respect to one another and the second discharge tip, and this first discharge tip and this second discharge tip are separated in one first gap.
7. contact panel as claimed in claim 6, wherein this ground loop also has the first extension and the second extension, this first extension is extended by the side of this first discharge tip, this second extension is extended by the side of this second discharge tip, this first extension and this second extension are separated in one second gap, this second extension of one insulation course, one conductive layer connects this first extension and to extend on this insulation course and this second extension overlapping, and this conductive layer, this insulation course and this second extension form this capacity cell.
8. contact panel as claimed in claim 7, wherein the material of this conductive layer is different from the material of this ground loop.
9. contact panel as claimed in claim 1, wherein the material of this ground loop comprises metal or transparent conductive material.
10. a touch control display apparatus, comprising:
Display panel;
Contact panel, be configured on this display panel, wherein this contact panel comprises:
Substrate, has Touch Zone and surrounding zone, and wherein this surrounding zone is around this Touch Zone;
Touch control electrode array, is configured in this Touch Zone; And
Ground loop, to be configured in this surrounding zone and around this Touch Zone, and this ground loop is electrically connected a capacity cell.
CN201410180687.1A 2014-04-30 2014-04-30 Touch panel and touch display apparatus CN105022520A (en)

Priority Applications (1)

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CN201410180687.1A CN105022520A (en) 2014-04-30 2014-04-30 Touch panel and touch display apparatus

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105932011A (en) * 2016-06-17 2016-09-07 京东方科技集团股份有限公司 Display screen and manufacturing method therefor, and display apparatus
US10216332B2 (en) 2016-01-04 2019-02-26 Boe Technology Group Co., Ltd. Color filter substrate and in-cell touch display device
WO2019127163A1 (en) * 2017-12-27 2019-07-04 深圳市柔宇科技有限公司 Curved-surface touch-control sensing device and moulding method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI229440B (en) * 2003-10-09 2005-03-11 Au Optronics Corp Electrostatic discharge protection structure
CN202013558U (en) * 2009-08-12 2011-10-19 智点科技(深圳)有限公司 Active touch control system
TW201219904A (en) * 2010-11-11 2012-05-16 Wintek Corp Touch display apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI229440B (en) * 2003-10-09 2005-03-11 Au Optronics Corp Electrostatic discharge protection structure
CN202013558U (en) * 2009-08-12 2011-10-19 智点科技(深圳)有限公司 Active touch control system
TW201219904A (en) * 2010-11-11 2012-05-16 Wintek Corp Touch display apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10216332B2 (en) 2016-01-04 2019-02-26 Boe Technology Group Co., Ltd. Color filter substrate and in-cell touch display device
CN105932011A (en) * 2016-06-17 2016-09-07 京东方科技集团股份有限公司 Display screen and manufacturing method therefor, and display apparatus
WO2017215263A1 (en) * 2016-06-17 2017-12-21 Boe Technology Group Co., Ltd. Display apparatus and fabricating method thereof
US20180190598A1 (en) * 2016-06-17 2018-07-05 Boe Technology Group Co., Ltd. Display apparatus and fabricating method thereof
CN105932011B (en) * 2016-06-17 2018-12-11 京东方科技集团股份有限公司 Display screen and its manufacturing method and display device
US10515909B2 (en) 2016-06-17 2019-12-24 Boe Technology Group Co., Ltd. Display apparatus and fabricating method thereof
WO2019127163A1 (en) * 2017-12-27 2019-07-04 深圳市柔宇科技有限公司 Curved-surface touch-control sensing device and moulding method therefor

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