CN202838282U - Touch panel and electronic device thereof - Google Patents

Touch panel and electronic device thereof Download PDF

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Publication number
CN202838282U
CN202838282U CN201220426930.XU CN201220426930U CN202838282U CN 202838282 U CN202838282 U CN 202838282U CN 201220426930 U CN201220426930 U CN 201220426930U CN 202838282 U CN202838282 U CN 202838282U
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China
Prior art keywords
layer
touch
contact panel
circuit
metal layer
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Expired - Lifetime
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CN201220426930.XU
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Chinese (zh)
Inventor
何宽鑫
黄萍萍
杨俊评
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TPK Touch Solutions Xiamen Inc
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TPK Touch Solutions Xiamen Inc
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Priority to CN201220426930.XU priority Critical patent/CN202838282U/en
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Abstract

The utility model relates to the technical field of touch control and provides a touch panel. The touch panel comprises an insulation substrate, a touch sensing layer, peripheral circuits, a protective layer and a ground connection metal layer. The insulation substrate comprises a touch area and a peripheral area surrounding the touch area. The touch sensing layer is arranged on the touch area and part of the peripheral area of the insulation substrate. The peripheral circuits are arranged in the peripheral area of the insulation substrate and are electrically connected with the touch sensing layer. The protective layer is at least covered on the peripheral circuits. The ground connection metal layer is arranged above the protective layer. The scope of the ground connection metal layer is covered on the scope of the peripheral circuits. The touch panel is provided with the ground connection metal layer, the ground connection metal layer can guide out electrostatic from inner components of the touch panel or generated by a human body, and the touch panel has good electrostatic discharge protective capacity.

Description

Contact panel and electronic installation thereof
Technical field
The utility model is relevant for a kind of contact panel, and the contact panel and the electronic installation thereof that particularly have ground metal layer.
Background technology
Contact panel is a kind of input equipment, for operator's direct control.The kind of contact panel has: the contact panels such as condenser type, resistance-type, electromagnetic type, optical profile type, wherein the application of capacitance type touch-control panel is comparatively extensive.Capacitance type touch-control panel mainly is to be binded with the touch base plate that is laid with inductive layer by cover glass to form; when the sensed layer of capacitance type touch-control panel applies the driving signal; if contact panel has touched, then the corresponding inductive layer of the touch position on contact panel position produces change in electric.
Because the operator sees through the finger manipulation contact panel often, and contact panel has the inductive layer that produces change in electric, therefore, people's cognition is transferred to partial electrostatic on the contact panel, makes this contact panel easily receive the static of human body.In addition, owing to can produce static in the atmospheric environment, the static that produces in the air also easily is accumulated in the contact panel.The static that accumulates in the contact panel easily causes the contact panel induction to lose efficacy or erroneous judgement in discharge process.
Meanwhile, because in recent years, contact panel is toward light, thin future development, and capacitance type touch-control panel manufacturer omits the touch base plate of a carrying inductive layer, and inductive layer directly is produced on the capacitance type touch-control panel that forms integrated touch-control structure on the cover glass.The capacitance type touch-control panel of this integrated touch-control structure and display device are fitted, owing to there not being touch base plate, perimeter circuit (it be metal material) easily exposes, the electrostatic breakdown that is brought by human body or external environment, and cause the contact panel inefficacy.Although contact panel has the protective seam of insulation function, protective seam still can't reach good electrostatic protection effect.
The utility model content
In view of this, the utility model provides a kind of contact panel with good static discahrge protection effect, accumulates on static in the contact panel with derivation.
The utility model embodiment provides a kind of contact panel, and described contact panel comprises insulated substrate, touch-control sensing layer, perimeter circuit, protective seam and ground metal layer.The surrounding zone that insulated substrate has the Touch Zone and centers on the Touch Zone.The touch-control sensing layer is positioned at Touch Zone and the part surrounding zone of insulated substrate.Perimeter circuit is positioned within the surrounding zone of insulated substrate, and is electrically connected at the touch-control sensing layer.Protective seam covers perimeter circuit at least.Ground metal layer is positioned on the protective seam, and the scope of ground metal layer contains the scope of perimeter circuit.
Further, wherein should cover this touch-control sensing layer and this perimeter circuit in protection series of strata one whole layer ground; Perhaps, this protective seam is ring-type, to cover at least perimeter circuit.
Further, wherein this contact panel more comprises the first light shield layer, and this first light shield layer is positioned within this surrounding zone of this insulated substrate, and this perimeter circuit is positioned on this first light shield layer.
Further, wherein this ground metal layer is reticulate texture.
Further, wherein this contact panel more comprises the second light shield layer, and this second light shield layer is folded between this ground metal layer and this insulation course, and scope contains the scope of this surrounding zone.
Further, wherein this contact panel more comprises a flexible printer circuit, and this flexible printer circuit has at least one the first grounding leg position, and this first grounding leg position is electrically connected this ground metal layer.Wherein this first grounding leg position also is electrically connected at least one earth lead of this perimeter circuit.
Further, wherein this flexible printer circuit also has at least one the second grounding leg position, and this second grounding leg position is electrically connected at least one earth lead of this perimeter circuit.
Further, this ground metal layer is the printed silver slurry.
Further, this contact panel more comprises a flatness layer, and this flatness layer is used so that the touch-control sensing layer is formed within this Touch Zone of this insulated substrate.
The utility model embodiment provides a kind of electronic installation, and described electronic installation comprises contact panel, LCD MODULE and circuit board, and wherein LCD MODULE sees through optical cement and pastes contact panel.Described contact panel comprises insulated substrate, touch-control sensing layer, perimeter circuit, protective seam, ground metal layer and the first flexible printer circuit (flexible printed circuit, FPC).The surrounding zone that insulated substrate has the Touch Zone and centers on the Touch Zone.The touch-control sensing layer is positioned at Touch Zone and the part surrounding zone of insulated substrate.Perimeter circuit is positioned on the surrounding zone of insulated substrate, and is electrically connected at the touch-control sensing layer.Protective seam covers perimeter circuit at least.Ground metal layer is positioned on the insulation course, and the scope of ground metal layer contains the scope of perimeter circuit.LCD MODULE has the second flexible printer circuit.The first flexible printer circuit is electrically connected perimeter circuit, and has the first grounding leg position electric connection ground metal layer.Circuit board comprises at least one chip that sees through first and second flexible printer circuit and be electrically connected contact panel and LCD MODULE.
Further, wherein should cover this touch-control sensing layer and this perimeter circuit in protection series of strata one whole layer ground; Perhaps, this protective seam is ring-type, to cover at least perimeter circuit.
Further, wherein this electronic installation more comprises the first light shield layer, and this first light shield layer is positioned within this surrounding zone of this insulated substrate, and this perimeter circuit is positioned on this first light shield layer.
Further, wherein this ground metal layer is reticulate texture.
Further, wherein this electronic installation more comprises the second light shield layer, and this second light shield layer is folded between this ground metal layer and this insulation course, and scope contains the scope of this surrounding zone.
Further, wherein this electronic installation more comprises a flexible printer circuit, and this flexible printer circuit has at least one the first grounding leg position, and this first grounding leg position is electrically connected this ground metal layer.Wherein this first grounding leg position also is electrically connected at least one earth lead of this perimeter circuit.
Further, wherein this flexible printer circuit also has at least one the second grounding leg position, and this second grounding leg position is electrically connected at least one earth lead of this perimeter circuit.
Further, this ground metal layer is the printed silver slurry.
Further, this electronic installation more comprises a flatness layer, and this flatness layer is used so that the touch-control sensing layer is formed within this Touch Zone of this insulated substrate.
In sum, described contact panel has ground metal layer, and this ground metal layer can derive the static that the intraware that comes from contact panel or human body produce.In addition, the external electromagnetic wave interference that ground plane can the shielded capacitor contact panel in use be subject to, therefore described contact panel both had electro-static discharge protective ability also can shielding electromagnetic interference.
Description of drawings
Fig. 1 is the plane perspective view of the contact panel of the utility model embodiment.
Fig. 2 A is the sectional view along the profile line AA of Fig. 1.
Fig. 2 B is the sectional view of the contact panel of another embodiment of the utility model.
Fig. 2 C is the again sectional view of the contact panel of an embodiment of the utility model.
Fig. 3 A to Fig. 3 E is the touch panel structure provided formation schematic flow sheet among Fig. 2 B.
Fig. 4 is the schematic diagram of the electronic installation of the utility model enforcement.
Embodiment
For enabling further to understand feature and the technology contents of the utility model, see also following detailed description about the utility model and accompanying drawing, but these explanations with appended graphic only be that the utility model is described, but not interest field of the present utility model is done any restriction.
Please refer to Fig. 1 and Fig. 2 A, Fig. 1 is the plane perspective view of the contact panel of the utility model embodiment, and Fig. 2 A is the sectional view along the profile line AA of Fig. 1.Contact panel 100 comprises insulated substrate 110, the first light shield layer 120, perimeter circuit 140, touch-control sensing layer 150, protective seam 160, ground metal layer 170 and flexible printer circuit 190.
Insulated substrate 110 has Touch Zone M1 and surrounding zone M2, and wherein surrounding zone M2 is around the M1 of Touch Zone.The material of insulated substrate 110 can be glass, plastics or quartz, yet the utility model is not as limit.In the utility model embodiment, contact panel 100 is the capacitance type touch-control panel that adopts integrated touch-control structure, and therefore described insulated substrate 110 is simultaneously as the touching operating surface.
The first light shield layer 120 is positioned within the M2 of surrounding zone, and its main application is shading and decoration, therefore available to prevent that the leakage because of incident light from having influence on the performance of image.In addition, use the first light shield layer 120 can also increase the color contrast of image.The first light shield layer 120 employed materials can be black resin, black photoresist, also can be the high dielectric inks with low-k, and the utility model is not as limit.
Touch-control sensing layer 150 is positioned at Touch Zone M1 and part surrounding zone M2, and the variation of a plurality of electric signal that produce on it in order to sensing is to obtain change in electric as sensing signal.Touch-control sensing layer 150 comprises the first patterned layer 151, insulation course 152 and the second patterned layer 153 that all is positioned at Touch Zone M1, and the first patterned layer 151 and the second patterned layer 153 are all conductive material.The material of the first patterned layer 151 and the second patterned layer 153 for example is indium tin oxide (Indium Tin Oxides, ITO), indium-zinc oxide (Indium Zinc Oxide, IZO), aluminium zinc oxide (Zinc oxide doping 3 oxidation 2 aluminium, AZO) or metal.Above-mentioned metal for example is gold, silver or copper.In addition, the material of insulation course 152 for example is resin or pi.Generally speaking, the material of the first patterned layer 151, insulation course 152 and the second patterned layer 153 is not to limit the utility model.
The first patterned layer 151 have parallel more than the first axial induction electrode axis (for example, X-axis induced electricity pole axis), the second patterned layer 153 have parallel more than the second axial induction electrode axis (for example, Y-axis induced electricity pole axis), insulation course 152 is in order to first and second axial induction electrode axis that is electrically insulated.The infall of the first axial electrode axle and the second axial electrode axle can form mutual capacitance, and the controller (not shown) can see through the mutual capacitance signal intensity that receives touch-control sensing layer 150 and calculate further contact position.Note that at this above-mentioned embodiment is not to limit the utility model.Therein among a kind of embodiment, the first patterned layer 151 have parallel more than the first axial induction electrode axis (for example, X-axis induced electricity pole axis) with arrange a plurality of the second axial electrode spaced apart from each other with matrix (for example, the Y-axis induction electrode), the second patterned layer 153 is as the cross-over connection layer, will being electrically connected each other along second axial a plurality of the second axial electrode, with form parallel more than the second axial electrode axle.In addition, in other embodiments, touch-control sensing layer 150 can also only have one deck patterned layer.
Perimeter circuit 140 is electrically connected at touch-control sensing layer 150, and it is formed on the first light shield layer 120, and is positioned at surrounding zone M2.The sensing signal of perimeter circuit 140 in order to touch-control sensing layer 150 is produced sees through flexible printer circuit 190 such as the mutual capacitance signal and is sent to the controller (not shown).Perimeter circuit 140 is made by conductive material, for example indium tin oxide, indium-zinc oxide, aluminium zinc oxide or metal.Perimeter circuit 140 can see through the methods such as etching or printing and form, but the utility model is also not only as limit.What deserves to be explained is, perimeter circuit 140 is in other embodiment, and touch-control sensing layer 150 extends to surrounding zone M2, and mutually is electrically connected with perimeter circuit 140 on the first shielding layer 120.
Protective seam 160 can be covered on touch-control sensing layer 150 and the perimeter circuit 140 a whole layer, in order to protect touch-control sensing layer 150 and perimeter circuit 140, prevents its oxidation or scratch, therefore protective seam 160 can be for example to be passivation.Protective seam 160 can also be ring-type, and it covers perimeter circuit 140 at least.Protective seam 160 can be insulation course, and it is in order to electrically isolated perimeter circuit 140 and ground metal layer 170.Protective seam 160 can be by silicon nitride (S3N4) or silicon dioxide (SiO2), and is made by vapour deposition process, but the utility model is also not only as limit.
Ground metal layer 170 is positioned on the protective seam 160, and the formation scope of ground metal layer 170 contains the scope of perimeter circuit 140, even the formation scope of ground metal layer 170 contains the scope of surrounding zone M2.Ground metal layer 170 is electrically connected with the first grounding leg position of flexible printer circuit 190, therefore ground metal layer 170 can see through flexible printer circuit 190 static of accumulation is delivered to earth terminal.Therefore, the design of described ground metal layer 170 can so that contact panel 100 has electro-static discharge protective ability, prevent the problem that contact panel or other assemblies are wounded by static discharge.In addition, contact panel 100 in use easily suffers extraneous Electromagnetic Interference (EMI), produce the mistake signal, even serious interference can cause whole contact panel 100 all can't use, and ground metal layer 170 can normally use contact panel 100 in this effect that also can play the electromagnetic interference of shielding.
In this embodiment, the material of ground metal layer 170 is metal.In metal, because printed silver slurry good conductivity, advantage that resistance is good, better, ground metal layer 170 can be made of the printed silver slurry.In this embodiment, the shape of ground metal layer 170 can be reticulate texture.Except saving material to reduce the manufacturing cost, whether cancellated ground metal layer 170 more can allow product fabricator or maintenance person be convenient to see through electron microscopy perimeter circuit 140 has open circuit and the problem of short circuit to exist, in the utility model embodiment, described cancellated sizing grid for example can be the grid of 0.5 centimetre of the length of side.
Flexible printer circuit 190 has the first grounding leg position and the second grounding leg position, and its first grounding leg position can be electrically connected ground metal layer 170, and its second grounding leg position is electrically connected a plurality of or earth lead of perimeter circuit 140.In addition, flexible printer circuit 190 also has sensing signal pin position and drives signal pin, and sensing signal pin position drives signal to touch-control sensing layer 150 and drive signal pin in order to transmit in order to receive the sensing signal of touch-control sensing layer 150.
In addition, in other embodiments, flexible printer circuit 190 only has the first grounding leg position, and the first grounding leg position is electrically connected a plurality of or earth lead of ground metal layer 170 and perimeter circuit 140 simultaneously.What deserves to be explained is, if consider the electro-static discharge protective ability of described contact panel 100, then in above-described embodiment, use in the situation of first and second grounding leg position in flexible printer circuit 190, can only come well with the effect of the first grounding leg position than flexible printer circuit 190.
In addition, flexible printer circuit 190 can be to see through the monolateral connection ground metal layer 170 in the first grounding leg position, perhaps, can also be to see through two bilateral connection ground metal layer 170 in the first grounding leg position.Generally speaking, flexible printer circuit 190 is not to limit the utility model with the connected mode of ground metal layer 170.
If note that at this above-mentioned contact panel 100 is arranged on the display panel, when being used for that display panel carried out touch control operation, insulated substrate 110 can be transparent insulation substrate, and Touch Zone M1 and surrounding zone M2 can be used for again defining viewing area and non-display area.In addition, if above-mentioned contact panel 100 is not when display panel is combined, insulated substrate 110 can be non-transparent insulation substrate, and the first light shield layer 120 can remove in contact panel 100, at this moment, perimeter circuit 140 is located immediately on the surrounding zone M2 of insulated substrate 110.
Please refer to Fig. 2 B, Fig. 2 B is the sectional view of the contact panel of another embodiment of the utility model.In this embodiment, contact panel 100 ' is roughly the same with the contact panel 100 of last embodiment, and difference is that contact panel 100 ' has more flatness layer 130.Flatness layer 130 is positioned at Touch Zone M1, and is located between touch-control sensing layer 150 and the insulated substrate 110.Flatness layer 130 can with so that touch-control sensing layer 150 be formed on the Touch Zone M1 of insulated substrate 110.In addition, flatness layer 130 is also available preventing the light scattering from LCD MODULE, and then the performance that improves image.Flatness layer 130 can be the smooth layer that forms with polymkeric substance, pi (polyimide, PI) for example, and the utility model does not limit the material of flatness layer 130.
Please then with reference to Fig. 2 C, Fig. 2 C is the again sectional view of the contact panel of an embodiment of the utility model.Compared to the contact panel 100 ' of Fig. 2 B, the contact panel 100 of Fig. 2 C " structure more comprises the second light shield layer 180.The second light shield layer 180 is between ground metal layer 170 and protective seam 160, and wherein the scope of the second light shield layer 180 contains the scope of surrounding zone M2.The main application of the second light shield layer 180 is shading and decoration, it can be in order to the performance of strengthening preventing the leakage of incident light and then having influence on image, therefore the second light shield layer 180 employed materials can be black resin, black photoresist or the high dielectric ink with low-k, with processing procedure mades such as coating or sputters.
If it should be noted that contact panel 100 " the second light shield layer 180 employed materials are the high dielectric inks with low-k, then more can the electrical isolation ground metal layer 170 with perimeter circuit 140.Accordingly, can more reduce the electrical interference between perimeter circuit 140 and the ground metal layer 170, thereby can be improved touch panel structure provided 100 " electro-static discharge protective ability.In addition, as previously described, the flatness layer 130 of Fig. 2 C can also be removed, that is having or not of flatness layer 130 is not to limit the second light shield layer 180.
In addition, shown in Fig. 2 C, the second light shield layer 180 in the past perimeter circuit 140 extends, and surrounds four limits, the outside of perimeter circuit 140.Accordingly, the second light shield layer 180 can also protect perimeter circuit 140 to be exposed to outer Outboard Sections originally, avoids perimeter circuit 140 impaired or scratches.
Then, please sequentially with reference to Fig. 3 A~Fig. 3 E and Fig. 2 A, Fig. 3 A~Fig. 3 E is respectively that the contact panel 100 of Fig. 2 A is in the sectional view of the formed semi-manufacture of each step.See also Fig. 3 A, insulated substrate 110 at first is provided, and the surrounding zone M2 that on insulated substrate 110, divides Touch Zone M1 and center on Touch Zone M1.Then, form the first light shield layer 120 in the M2 of the surrounding zone of transparent insulation substrate 110.The first light shield layer 120 is the black photoresist, coats on the M2 of surrounding zone via lithographic process.Then, the black photoresist is after carrying out pre-baked and step of exposure, and meeting and then formation dark border are therefore the first light shield layer 120 has shaded effect.In addition, the first light shield layer 120 can be the high dielectric ink with low-k, be made in the M2 of surrounding zone in the mode of screen painting, or the first light shield layer 120 also can be chromium, is formed on the M2 of surrounding zone with sputter process.Generally speaking, the utility model does not limit the generation type of the first light shield layer 120.
See also Fig. 3 B, form touch-control sensing layer 150 at insulated substrate 110, and be positioned at Touch Zone M1 and part surrounding zone M2, wherein touch-control sensing layer 150 comprises the first patterned layer 151, insulation course 152 and the second patterned layer 153.In more detail, form first the first patterned layer 151, then on the first patterned layer 151, form insulation course 152, forming the second patterned layer 153 on insulation course 152 afterwards.
See also Fig. 3 C, perimeter circuit 140 is formed on the first light shield layer 120, and around touch-control sensing layer 150.Perimeter circuit 140 has at least one earth lead.The generation type of perimeter circuit 140 can be the methods such as etching, printing or routing, but the utility model is also not only as limit.
See also Fig. 3 D, then, form protective seam 160 on touch-control sensing layer 150 and perimeter circuit 140.In addition, protective seam 160 can form by vapour deposition process, but the utility model is also not only as limit.Protective seam 160 can be covered on touch-control sensing layer 150 and the perimeter circuit 140 a whole layer, in order to protect touch-control sensing layer 150 and perimeter circuit 140, prevents its oxidation or scratch, therefore protective seam 160 can be for example to be passivation.Protective seam 160 can also be ring-type, and it covers perimeter circuit 140 at least.Protective seam 160 can be insulation course, and it is in order to electrically isolated perimeter circuit 140 and ground metal layer 170.
See also Fig. 3 E, ground metal layer 170 is formed on the protective seam 160, and the scope of ground metal layer 170 contains the scope of perimeter circuit 140, even can contain the scope of surrounding zone M2.In addition, in the utility model embodiment, ground metal layer 170 is the silver slurry, and is made on the protective seam 160 with mode of printing.But, the material of ground metal layer 170 and production method only are explanation, and non-limiting the utility model.
It should be noted that in other embodiment of the present utility model, ground metal layer 170 is reticulate texture, cancellated ground metal layer 170 is convenient to maintenance person or the fabricator checks the problem whether open circuit and short circuit are arranged between the perimeter circuit 140.In addition, ground metal layer 170 also can be membrane structure, and in a word, the utility model is not limited the structure of ground metal layer 170.
Please continue to consult Fig. 2 A, form at last the flexible printer circuit 190 of bilateral or monolateral connection ground metal layer 170.It should be noted that flexible printer circuit 190 has the first grounding leg position and the second grounding leg position, its first grounding leg position can be electrically connected ground metal layer 170, and its second grounding leg position is electrically connected a plurality of or earth lead of perimeter circuit 140.In addition, flexible printer circuit 190 also has sensing signal pin position and drives signal pin, and sensing signal pin position drives signal to touch-control sensing layer 150 and drive signal pin in order to transmit in order to receive the sensing signal of touch-control sensing layer 150.In addition, in other embodiments, flexible printer circuit 190 only has the first grounding leg position, and the first grounding leg position is electrically connected a plurality of or earth lead of ground metal layer 170 and perimeter circuit 140 simultaneously.Generally speaking, the utility model is not limited this.
In addition, when contact panel 100 has more a flatness layer between insulated substrate 110 and touch-control sensing layer 150, in forming flatness layer 130 between Fig. 3 A and Fig. 3 B on the M1 of the viewing area of transparent insulation substrate 110, wherein flatness layer is used so that touch-control sensing layer 150 is formed on the Touch Zone M1 of insulated substrate 110.Thickness that it should be noted that flatness layer is identical haply with the thickness of the first light shield layer 120, thereby can carry out smoothly successive process.In addition, flatness layer forms with polymkeric substance.Accordingly, flatness layer can be formed at by evaporation on the transparent insulation substrate 110, and is positioned at Touch Zone M1, but the utility model does not limit the generation type of flatness layer.In this simultaneously, touch-control sensing layer 150 is to be formed on the M1 of Touch Zone through flatness layer.
In addition, when contact panel 100 has more one second light shield layer between ground metal layer 170 and protective seam 160, between Fig. 3 D and figure E, be formed on the protective seam 160, and the formation scope of the second light shield layer 180 contains the scope of surrounding zone M2.The second light shield layer 180 can be the black photoresist, coats on the M2 of surrounding zone via lithographic process, then, carries out pre-baked and step of exposure again, and then forms dark border, thereby the second light shield layer 180 can be in order to shading.In addition, the second light shield layer 180 can also be the high dielectric ink with low-k, is made on the M2 of surrounding zone in the mode of wire mark.Or second light shield layer 180 also can be chromium, be formed on the M2 of surrounding zone with sputter process.In a word, the utility model does not limit the generation type of the second light shield layer 180.
Please then with reference to Fig. 4, Fig. 4 is the schematic diagram of the electronic installation of the utility model enforcement.Electronic installation 400 has contact panel 410, LCD MODULE 420 and circuit board 430.Described contact panel 410 has flexible printer circuit 411, and contact panel 410 can be the contact panel 100 of above-described embodiment, contact panel 100 ' or contact panel 100 ".LCD MODULE 420 sees through optical cement and sticks in this contact panel 410, and has flexible printer circuit 421.Circuit board 430 comprises the chip 431 and chip 432 that sees through flexible printer circuit 411 and flexible printer circuit 421 respectively and be electrically connected contact panel 410 and LCD MODULE 420.The number of chips of circuit board 430 is not to limit the utility model, and chip 432 or chip 431 can be electrically connected contact panel 410 and LCD MODULE 420 simultaneously.
In sum, the described contact panel that the utility model embodiment provides has ground metal layer, and this ground metal layer can derive the static of the intraware accumulation that comes from contact panel.In addition, ground plane also can in use be subject to extraneous Electromagnetic Interference by the shielded capacitor contact panel, and therefore described contact panel can have electro-static discharge protective ability and can shielding electromagnetic interference.
In addition, in one of them embodiment of the utility model, described ground metal layer can be cancellated printed silver slurry, with the cost of reduction contact panel, and provides maintenance person or fabricator to be convenient to check whether perimeter circuit has the problem of open circuit or short circuit.In addition, in another embodiment of the utility model, described contact panel has more the second light shield layer, and the second light shield layer can be the high dielectric ink with low-k, to increase the antistatic capacity of contact panel.
The above only is embodiment of the present utility model, and it is not to limit scope of patent protection of the present utility model.Anyly have the knack of alike skill person, within not breaking away from spirit of the present utility model and scope, the change of doing and the equivalence of retouching are replaced, and still are in the scope of patent protection of the present utility model.

Claims (19)

1. contact panel comprises:
One insulated substrate, a surrounding zone that has a Touch Zone and center on this Touch Zone;
One touch-control sensing layer is positioned at this Touch Zone and the part surrounding zone of this insulated substrate;
One perimeter circuit is positioned within this surrounding zone of this insulated substrate, and is electrically connected at this touch-control sensing layer;
One protective seam covers this perimeter circuit at least; And
One ground metal layer is positioned on this protective seam, and the scope of this ground metal layer contains the scope of this perimeter circuit.
2. contact panel according to claim 1 is characterized in that, this protection series of strata one whole layer ground covers this touch-control sensing layer and this perimeter circuit; Perhaps, wherein this protective seam is ring-type, to cover at least this perimeter circuit.
3. contact panel according to claim 1 more comprises:
One first light shield layer is positioned within this surrounding zone of this insulated substrate, and this perimeter circuit is positioned on this first light shield layer.
4. contact panel according to claim 1 is characterized in that, this ground metal layer is reticulate texture.
5. contact panel according to claim 3 more comprises:
One second light shield layer is folded between this ground metal layer and this insulation course, and wherein the scope of this second light shield layer contains the scope of this surrounding zone.
6. contact panel according to claim 1 more comprises:
One flexible printer circuit has at least one the first grounding leg position, and wherein this first grounding leg position is electrically connected this ground metal layer.
7. contact panel according to claim 6 is characterized in that, this flexible printer circuit also has at least one the second grounding leg position, and wherein this second grounding leg position is electrically connected at least one earth lead of this perimeter circuit.
8. contact panel according to claim 6 is characterized in that, this first grounding leg position also is electrically connected at least one earth lead of this perimeter circuit.
9. contact panel according to claim 1 is characterized in that, this ground metal layer is the printed silver slurry.
10. according to claim 1 or contact panel claimed in claim 5, it is characterized in that, more comprise:
One flatness layer, this flatness layer is used so that this touch-control sensing layer is formed within this Touch Zone of this insulated substrate.
11. an electronic installation comprises:
One contact panel comprises
One transparent insulation substrate, a surrounding zone that has a Touch Zone and center on this Touch Zone;
One touch-control sensing layer is positioned at this Touch Zone and the part surrounding zone of this insulated substrate;
One perimeter circuit is positioned within this surrounding zone of this insulated substrate, and is electrically connected at this touch-control sensing layer;
One protective seam covers this perimeter circuit at least;
One ground metal layer is positioned on this protective seam, and the scope of this ground metal layer contains the scope of this perimeter circuit; And
One first flexible printer circuit is electrically connected this perimeter circuit, and has at least one the first grounding leg position and be electrically connected this ground metal layer;
One LCD MODULE sees through an optical cement and sticks in this contact panel, and has one second flexible printer circuit;
One circuit board comprises at least one chip that sees through this first and second flexible printer circuit respectively and be electrically connected this contact panel and this LCD MODULE.
12. electronic installation according to claim 11 is characterized in that, this protection series of strata one whole layer ground covers this touch-control sensing layer and this perimeter circuit; Perhaps, wherein this protective seam is ring-type, to cover at least this perimeter circuit.
13. electronic installation according to claim 11 more comprises:
One first light shield layer is positioned within this surrounding zone of this insulated substrate, and this perimeter circuit is positioned on this first light shield layer.
14. electronic installation according to claim 11 is characterized in that, this ground metal layer is reticulate texture.
15. electronic installation according to claim 13 is characterized in that, this contact panel more comprises:
One second light shield layer is located between this ground metal layer and this protective seam, and wherein the scope of this second light shield layer contains the scope of this surrounding zone.
16. electronic installation according to claim 11 is characterized in that, this first flexible printer circuit also has at least one the second grounding leg position, and wherein this second grounding leg position is electrically connected at least one earth lead of this perimeter circuit.
17. electronic installation according to claim 11 is characterized in that, this first grounding leg position also is electrically connected at least one earth lead of this perimeter circuit.
18. electronic installation according to claim 11 is characterized in that, this ground metal layer is the printed silver slurry.
19. according to claim 11 or the described electronic installation of claim 15, it is characterized in that, this contact panel more comprises:
One flatness layer, this flatness layer is used so that this touch-control sensing layer is formed within this Touch Zone of this insulated substrate.
CN201220426930.XU 2012-08-27 2012-08-27 Touch panel and electronic device thereof Expired - Lifetime CN202838282U (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103294263A (en) * 2013-04-01 2013-09-11 友达光电股份有限公司 Touch display device and display device
CN103631458A (en) * 2012-08-27 2014-03-12 宸鸿科技(厦门)有限公司 Touch control panel, electronic device of touch control panel and manufacturing method of touch control panel
CN103955312A (en) * 2014-05-06 2014-07-30 山东华芯富创电子科技有限公司 Anti-static structure and manufacturing method thereof for touch panel
CN104142762A (en) * 2013-05-06 2014-11-12 福建省辉锐材料科技有限公司 Capacitive touch screen and preparation method thereof
CN104317436A (en) * 2014-09-17 2015-01-28 福建省飞阳光电有限公司 Touch control display module
CN104571733A (en) * 2013-10-11 2015-04-29 恒颢科技股份有限公司 Touch panel
CN104808871A (en) * 2014-01-25 2015-07-29 福建省辉锐电子技术有限公司 Capacitive touch screen and preparation method
CN105045428A (en) * 2015-08-17 2015-11-11 山东华芯富创电子科技有限公司 Shielded wire structure and touch screen
CN108446057A (en) * 2018-03-05 2018-08-24 业成科技(成都)有限公司 Touch panel and touch control display apparatus
CN110888558A (en) * 2020-01-02 2020-03-17 业成科技(成都)有限公司 Touch panel and touch device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103631458A (en) * 2012-08-27 2014-03-12 宸鸿科技(厦门)有限公司 Touch control panel, electronic device of touch control panel and manufacturing method of touch control panel
CN103294263B (en) * 2013-04-01 2016-04-13 友达光电股份有限公司 Touch display device and display device
CN103294263A (en) * 2013-04-01 2013-09-11 友达光电股份有限公司 Touch display device and display device
CN104142762A (en) * 2013-05-06 2014-11-12 福建省辉锐材料科技有限公司 Capacitive touch screen and preparation method thereof
CN104571733B (en) * 2013-10-11 2017-10-24 恒颢科技股份有限公司 Touch panel
CN104571733A (en) * 2013-10-11 2015-04-29 恒颢科技股份有限公司 Touch panel
CN104808871A (en) * 2014-01-25 2015-07-29 福建省辉锐电子技术有限公司 Capacitive touch screen and preparation method
CN103955312A (en) * 2014-05-06 2014-07-30 山东华芯富创电子科技有限公司 Anti-static structure and manufacturing method thereof for touch panel
CN104317436A (en) * 2014-09-17 2015-01-28 福建省飞阳光电有限公司 Touch control display module
CN104317436B (en) * 2014-09-17 2018-03-13 福建省飞阳光电股份有限公司 A kind of touch-control display module
CN105045428A (en) * 2015-08-17 2015-11-11 山东华芯富创电子科技有限公司 Shielded wire structure and touch screen
CN108446057A (en) * 2018-03-05 2018-08-24 业成科技(成都)有限公司 Touch panel and touch control display apparatus
CN110888558A (en) * 2020-01-02 2020-03-17 业成科技(成都)有限公司 Touch panel and touch device
CN110888558B (en) * 2020-01-02 2024-01-02 业成科技(成都)有限公司 Touch panel and touch device

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