CN201242736Y

CN201242736Y - Touch control panel

Info

Publication number: CN201242736Y
Application number: CNU2008201249543U
Authority: CN
Inventors: 苏丹
Original assignee: BYD Co Ltd
Current assignee: Shenzhen Holitech Optoelectronics Co Ltd
Priority date: 2008-07-25
Filing date: 2008-07-25
Publication date: 2009-05-20
Anticipated expiration: 2018-07-25

Abstract

The utility model relates to a touch-control panel, which comprises a first substrate layer, a second substrate layer, a first conductive layer and a second conductive layer. The first conductive layer and a second conductive layer are respectively arranged on the opposite surfaces of the first substrate layer and the second substrate layer, a first conductive circuit layer and a second conductive circuit layer are respectively arranged on the edge of the first conductive layer and the second conductive layer, a first insulation circuit layer and a second insulation circuit layer are respectively covered on the first conductive circuit layer and the second conductive circuit layer, the first insulation circuit layer and the second insulation circuit layer are adhered through an adhesive layer, a plurality of transparent insulation points are also arranged between the first conductive layer and the second conductive layer, and the transparent insulation points are fixed on either the first conductive layer or the second conductive layer; wherein, a first insulating isolation layer is also arranged between the first substrate layer and the second substrate layer. The touch-control panel has the advantage that the service life is prolonged.

Description

A kind of contact panel

Technical field

The utility model relates to a kind of contact panel.

Background technology

The application of contact panel can replace traditional slide-mouse and keyboard, saves the space of product, has improved portability, is widely used in various electronic products such as laptop computer, personal digital assistant, video camera at present.

Typical electric resistance touch-control panel generally comprises the two-layer resistive conductive base that is coated with transparent indium tin oxide layer (ITO), is positioned at a plurality of transparent insulation particles and the good silver electrode of electric conductivity between two-layer conductive base, and distribution of electrodes is at the edge of two-layer conductive base.Two-layer conductive base is equivalent to resistor network, when the electrode on one deck wherein adds voltage, can form voltage gradient on this resistor network.If there is external force to make two-layer conductive base in certain some contact, then can record the voltage of contact point at uninflated another layer, the voltage that records is sent to the controller of contact panel, and controller is determined the coordinate (contact position) of contact point according to the voltage that receives.

As shown in Figure 1, traditional contact panel comprises first base material 11 and second base material 12, on the opposite face of first base material 11 and second base material 12, be respectively arranged with first conductive layer 13 and second conductive layer 14, be respectively arranged with the first conducting wire layer 15 and the second conducting wire layer 16 at the edge of first conductive layer 13 and second conductive layer 14, be coated with the first insulated circuit layer 17 and the second insulated circuit layer 18 on the first conducting wire layer 15 and the second conducting wire layer 16 respectively, the first insulated circuit layer 17 and the second insulated circuit layer 18 are bonding by adhesive-layer 19, the conducting wire of the first conducting wire layer 15 and the second conducting wire layer 16 is connected with controller by flexible circuit board 10, between first conductive layer 13 and second conductive layer 14, be provided with a plurality of transparent insulation particles 20, be used to isolate first conductive layer 13 and second conductive layer 14, under the situation that is not subjected to external force, first conductive layer 13 does not contact with second conductive layer 14.

User's operation on first base material 11 of traditional contact panel continually, as knock, line etc., can make first conductive layer 13 be subjected to loss, thereby make the use mission reduction of contact panel, though can on first base material 11, scribble and add hard conating, increase the mechanical serviceable life of contact panel, but when the operation contact panel, add hard conating and also be worn along with user's operation; In addition, be subjected to the influence of coating process, the difficulty that control evenly is coated with when forming coating is bigger, so the Newton ring phenomenon can appear in contact panel, prevent Newton ring though can add some optical coatings on first base material 11, these coatings also can be worn along with user's operation.

The utility model content

Order of the present utility model is to solve existing contact panel and causes the problem that first conductive layer is worn, serviceable life is short owing to user's frequent operation, and a kind of contact panel that strengthens serviceable life is provided.

Be implemented above-mentioned purpose, the utility model provides a kind of contact panel, comprise first substrate layer, second substrate layer, be separately positioned on first conductive layer and second conductive layer on the opposite face of first substrate layer and second substrate layer, be respectively arranged with the first conducting wire layer and the second conducting wire layer at the edge of first conductive layer and second conductive layer, be coated with the first insulated circuit layer and the second insulated circuit layer on the first conducting wire layer and the second conducting wire layer respectively, the first insulated circuit layer and the second insulated circuit layer are bonding by adhesive-layer, also be provided with a plurality of transparent insulation points between first conductive layer and second conductive layer, this transparent insulation point is fixed on one in first conductive layer and second conductive layer, wherein, also be provided with first dielectric isolation layer between described first substrate layer and first conductive layer.

The contact panel that the utility model provides; owing between first substrate layer and first conductive layer, be provided with first insulation course; when the user operates on first substrate layer; for example click; knock; when line waits; deformation can take place in first substrate layer; to second conductive layer first conductive layer is contacted with second conductive layer first conductive lamination; owing to also be separated with first dielectric isolation layer between first substrate layer and first conductive layer; this separation layer can play good buffer action to the pressure that is applied to first conductive layer by first substrate layer; thereby can protect first conductive layer not easy to wear, to strengthen the serviceable life of contact panel.

Description of drawings

Fig. 1 is the structural representation of traditional contact panel;

Fig. 2 is the structural representation of the contact panel that provides of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described

As shown in Figure 2, the utility model provides a kind of contact panel, comprise first substrate layer 21, second substrate layer 22, be separately positioned on first conductive layer 23 and second conductive layer 24 on the opposite face of first substrate layer 21 and second substrate layer 22, be respectively arranged with the first conducting wire layer 25 and the second conducting wire layer 26 at the edge of first conductive layer 23 and second conductive layer 24, be coated with the first insulated circuit layer 27 and the second insulated circuit layer 28 on the first conducting wire layer 25 and the second conducting wire layer 26 respectively, the first insulated circuit layer 27 and the second insulated circuit layer 28 are bonding by adhesive-layer 29, also be provided with a plurality of transparent insulation points 30 between first conductive layer 23 and second conductive layer 24, this transparent insulation point 30 is fixed on one in first conductive layer 23 and second conductive layer 24, wherein, also be provided with first dielectric isolation layer 31 between described first substrate layer 21 and first conductive layer 23.

First substrate layer 21 can be transparent polyimide (PI), polyethylene terephthalate (PET) base material etc., be preferably the PET base material, the surface of first substrate layer 21 can scribble and add hard conating, and can add different treatment effects such as anti-dazzle is handled, line reflection against sunshine is handled, the processing of increase light penetration according to different demands.First substrate layer 21 can by silk-screen, bat printing or shift different patterns and effect, also can be by electroplating in the different metal finishing effect of this layer formation.The thickness of first substrate layer 21 can be for smaller or equal to 0.3mm, and transmittance is 40-99%.

Second substrate layer 22 can be glass or plastic material, and plastic material can be made for one or more hybrid process in polycarbonate (PC), the polymethylmethacrylate (PMMA) etc.The thickness of second substrate layer 22 is 0.2-2mm, and transmittance is 60-99%, and skin hardness is 0-3H.22 pairs of contact panels of second substrate layer play support and shock proof effect.

First conductive layer 23 and second conductive layer 24 can be for there being the PET base material of tin indium oxide or aluminum zinc oxide by cold galvanising, be preferably tin indium oxide, wherein the thickness of tin indium oxide or aluminum zinc oxide can require to make different adjustment with optical property according to different electrical properties.The thickness of first conductive layer 23 and second conductive layer 24 can be 0.05mm-0.3mm, is preferably 0.125-0.2mm, and transmittance can be preferably 80%-90% for 60%-99%, and square resistance can be 0-1000 Ω/.

The first conducting wire layer 25 and the second conducting wire layer 26 can be metal carbonyl conducting layer, for example can be silver slurry, carbon slurry or both potpourris of printing, form conductive loop by printed wiring at the edge of first conductive layer 23 and second conductive layer 24, the component of silver slurry can be vibrin and silver powder; The component of carbon slurry can be vibrin and carbon dust.The thickness of the first conducting wire layer 25 and the second conducting wire layer 26 can be 3-20 μ m.

The first insulated circuit layer 27 and the second insulated circuit layer 28 can be insulating property good photocuring or heat curing slaine hybrid resin, for example acrylates resin.The first insulated circuit layer 27 and the second insulated circuit layer 28 can be respectively by printed wiring on the first conducting wire layer 25 and the second conducting wire layer 26, the thickness of the first insulated circuit layer 27 and the second insulated circuit layer 28 can be 3-40 μ m.

Adhesive-layer 29 can be water-based pressure sensitive adhesives or oiliness cementing agent, can be routed on the insulated circuit by silk-screen, and thickness can be 10-50 μ m.

Described first dielectric isolation layer 31 is printed on one in described first substrate layer 21 and first conductive layer 23 by steel plate, and by ultraviolet light polymerization, another person in first substrate layer 21 and first conductive layer 23 is bonding by the first optics layers of two-sided and first insulation course.

Also be provided with second dielectric isolation layer 32 between described second substrate layer 22 and second conductive layer 24.Second dielectric isolation layer 32 is printed on one in described second substrate layer 22 and second conductive layer 24 by steel plate, and by ultraviolet light polymerization, another person in second substrate layer 22 and second conductive layer 24 is bonding by the second optics layers of two-sided and second dielectric isolation layer.

Described first dielectric isolation layer 31 and second dielectric isolation layer 32 can be a plurality of transparent insulation particles, a plurality of transparent insulation particles are set on one in second substrate layer 22 and second conductive layer 24, and the triangle that a plurality of transparent insulation particles can constitute with three transparent insulation particles is that elementary cell is arranged; Also the hexagon that can constitute with six transparent insulation particles is that elementary cell is carried out honeycomb arrangement; The rectangle that can also constitute with four transparent insulation particles is that elementary cell is arranged, and under the preferable case, arranges with 0.5mm * 0.5mm-3mm * 3mm.The transparent insulation particle can for example can be the acrylates resin for the good photocuring of insulating property or the slaine hybrid resin of heat curing, and its diameter can be 1 μ m-40 μ m, highly can be 1 μ m-20 μ m.

First dielectric isolation layer 31 and second dielectric isolation layer 32 are separately positioned between first substrate layer 21 and first conductive layer 23 and between second substrate layer 22 and second conductive layer 24, because being a plurality of particles " point " shape, dielectric isolation layer distributes, therefore when transmitting pressure well, can play certain buffer action to pressure, can reduce the wearing and tearing of first conductive layer 23 and second conductive layer 24 like this, prolong its serviceable life.In addition, adopt glue to carry out bonding between first substrate layer 21 and first conductive layer 23 and between second substrate layer 22 and second conductive layer 24, in the coating process of glue, be difficult to its coating of control evenly, so just might make first substrate layer 21 and first conductive layer 23 and second substrate layer 22 and second conductive layer 24 interference fringe occur, i.e. the Newton ring phenomenon.Added first dielectric isolation layer 31 and second dielectric isolation layer 32 can make between first conductive layer 23 and second substrate layer 22 and second conductive layer 24 between the gap even, regulate the height of first dielectric isolation layer 31 and second dielectric isolation layer 32, just can well prevent the appearance of Newton ring.

The arrangement of the material of described a plurality of transparent insulation point 30, size and a plurality of transparent insulation points can be identical with described a plurality of transparent insulation particles, seldom does description at this.

The first optics double faced adhesive tape and the second optics double faced adhesive tape can be the acrylic compounds of the no base material of insulation, and its thickness can be 0.01-0.1mm, and transmittance is 90-99%.This optics double faced adhesive tape pliability is good, and chemical property is an inertia, can be arranged on the desired base material by attaching process, and processing characteristics is good, the attaching process simple and fast.Certainly, also can substitute the optics double faced adhesive tape with the viscose glue of other types.

Described contact panel also comprises flexible circuit board 33, and the circuit on this flexible circuit board 33 is electrically connected with the lead-in wire of the described first conducting wire layer 25 and the second conducting wire layer 26 respectively, and is connected with controller.Flexible circuit board 33 can for example can comprise Copper Foil, glue and base material for having the printed circuit board (PCB) that flexible base material is made.Copper Foil can be calendering copper or cathode copper, and thickness can be 0.2-3.0mil; Base material can be PI film or PET film, and thickness can be 0-3mil; Glue can be acrylate glue, and thickness can be 0.4-2.0mil.The lead-in wire of the first conducting wire layer 25 and the second conducting wire layer 26 is connected with controller by flexible circuit board 33.

Claims

1, a kind of contact panel, comprise first substrate layer (21) and second substrate layer (22) that is oppositely arranged and be separately positioned on first conductive layer (23) and second conductive layer (24) on the opposite face of first substrate layer (21) and second substrate layer (22), be respectively arranged with the first conducting wire layer (25) and the second conducting wire layer (26) at the edge of first conductive layer (23) and second conductive layer (24), be coated with the first insulated circuit layer (27) and the second insulated circuit layer (28) on the first conducting wire layer (25) and the second conducting wire layer (26) respectively, the first insulated circuit layer (27) and the second insulated circuit layer (28) are bonding by adhesive-layer (29), also be provided with a plurality of transparent insulation points (30) between first conductive layer (23) and second conductive layer (24), this transparent insulation point (30) is fixed on one in first conductive layer (23) and second conductive layer (24), it is characterized in that, also be provided with first dielectric isolation layer (31) between described first substrate layer (21) and first conductive layer (23).

2, contact panel according to claim 1, wherein, described first dielectric isolation layer (31) comprises a plurality of transparent insulation particles, and the diameter of this transparent insulation particle is 1 μ m-40 μ m, highly be 1 μ m-20 μ m, the distance of adjacent transparent insulation particle is 0.5mm-3mm.

3, contact panel according to claim 2, wherein, described first dielectric isolation layer (31) is fixed on one in described first substrate layer (21) and first conductive layer (23), and another person in first substrate layer (21) and first conductive layer (23) is bonding by the first optics layers of two-sided and first dielectric isolation layer (31).

4, contact panel according to claim 1 wherein, also is provided with second dielectric isolation layer (32) between described second substrate layer (22) and second conductive layer (24).

5, contact panel according to claim 4, wherein, described second dielectric isolation layer (32) is a plurality of transparent insulation particles, and the diameter of this transparent insulation particle is 1 μ m-40 μ m, highly be 1 μ m-20 μ m, the distance of adjacent transparent insulation particle is 0.5mm-3mm.

6, contact panel according to claim 5, wherein, described second dielectric isolation layer (32) is fixed on one in described second substrate layer (22) and second conductive layer (24), and another person in second substrate layer (22) and second conductive layer (24) is bonding by the second optics layers of two-sided and second dielectric isolation layer (32).

7, contact panel according to claim 1, wherein, described contact panel also comprises flexible circuit board (33), the circuit on this flexible circuit board (33) is electrically connected with the lead-in wire of the described first conducting wire layer (25) and the second conducting wire layer (26) respectively.