CN209015120U - A kind of G+G structure four-wire resistance type touch screen - Google Patents

Abstract

The utility model discloses a kind of G+G structure four-wire resistance type touch screens, including the ITO electro-conductive glass set gradually from up to down and base, the ITO electro-conductive glass and base are respectively arranged with circuit layer and lower circuit layer on face relative to each other, the upper circuit layer is equipped with upper silver wire, and the lower circuit layer is equipped with lower silver wire；The upper silver wire and lower silver wire are by silver point glue connection, and the upper silver wire of the junction and lower silver wire are intermeshing shape, so that the sum of thickness of silver wire and lower silver wire is equal to the not connected thickness for locating upper silver wire or lower silver wire on junction；Separation layer is provided between upper circuit layer and lower circuit layer, the separation layer is equipped with multiple supporting points.The utility model engages design by needing to be staggered with the place of silver point glue connection at the tie point of upper silver wire and lower silver wire, so that overall thickness is reduced to one layer of thickness, reduces the operating force of touch screen to 120g hereinafter, greatly improving the touch experience sense of user.

Description

A kind of G+G structure four-wire resistance type touch screen

Technical field

The utility model relates to touch screen manufacturing technology field more particularly to a kind of G+G structure four-wire resistance type touch screens.

Background technique

The upper layer circuit of common F+G structure four-wire resistance type touch screen using ITO conductive film, as touch layer because Its material is soft to allow the operating force of touch screen to accomplish≤50g, is fully able to meet operating force≤120g customer's use and want It asks, but the upper layer circuit (touch layer) of the four-wire resistance type touch screen of G+G structure is using ITO electro-conductive glass, due to mesh Preceding most thin ito glass available in the market is 0.2mm, because its material is hard, curvature is small more than ITO conductive film, therefore is touched The operating force of Shi Suoxu is general >=180g, which has limited the popularizations and application of G+G structure four-wire resistance type touch screen, it is necessary to take The operating force of measure reduction G+G structure touch screen.

Discovery, the operating force too big, support with the gap of interlayer above and below touch screen (box is thick) greatly are researched and analysed through the applicant Point spacing it is too close related, this is because: the curvature of upper layer ito glass be it is relatively-stationary, within the scope of maximum curvature, touch screen The gap of upper and lower interlayer is bigger, then when carrying out touch control operation connects upper and lower sandwich circuit, the curvature of corresponding ito glass is also got over Greatly, used operating force is also bigger；It is equally this reason that supporting point spacing is too close: the spacing of two supporting points is closer, on The touch of lower sandwich circuit communicates that required power is bigger, and the spacing of two supporting points is remoter, and upper and lower sandwich circuit touch communicates required power It is smaller.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art, provide a kind of G+G structure four-wire resistance type touching Screen is touched, the operating force of the touch screen is lower than 120g, to meet the requirement of high-end equipment and automatic field.

The utility model is realized in this way:

The utility model aim is to provide a kind of G+G structure four-wire resistance type touch screen, including successively sets from up to down The ITO electro-conductive glass set and base, be respectively arranged on the ITO electro-conductive glass and base face relative to each other circuit layer with Lower circuit layer, the upper circuit layer and lower circuit layer are connected separately at least two lead-out wires, and the upper circuit layer is equipped with upper silver Line, the lower circuit layer are equipped with lower silver wire；The upper silver wire and lower silver wire pass through silver point glue connection, the upper silver wire of the junction It is intermeshing shape with lower silver wire, so that the sum of Thickness ness of silver wire and lower silver wire is equal in not connected place on junction The thickness of silver wire or lower silver wire；Separation layer is provided between upper circuit layer and lower circuit layer, the separation layer is equipped with more A supporting point that the upper circuit layer and lower circuit layer can be separated.

Compared with prior art, the utility model has the following advantages that and effect:

A kind of G+G structure four-wire resistance type touch screen provided by the utility model, on the basis of existing G+G structure touch screen On, by improving the position of upper and lower level silver wire route and the shape of upper and lower level silver wire connection position, so that silver wire is under on junction The sum of thickness of silver wire is equal to the not connected thickness for locating upper silver wire or lower silver wire；Make in touch screen box thickness by original 30 μm (upper 10 μm of silver wire thickness, 10 μm of lower layer's silver wire thickness, 10 μm of the thickness after silver point glue laminated is flat) is reduced to 20 μm of (improved thickness Degree is 10 μm of thickness of single layer silver wire, 10 μm of the thickness after silver point glue laminated is flat), reduce the operating force of touch screen to 120g hereinafter, The touch experience sense of user is greatly improved, the market demand of high-end equipment field can be met, expands our company in high-end equipment The market scope in field.

Detailed description of the invention

Fig. 1 is a kind of perspective view of the explosion of G+G structure four-wire resistance type touch screen provided by the embodiment of the utility model；

Fig. 2 is a kind of overall structure signal of G+G structure four-wire resistance type touch screen provided by the embodiment of the utility model Figure；

Fig. 3 is a kind of upper silver wire of G+G structure four-wire resistance type touch screen provided by the embodiment of the utility model and lower silver The enlarged structure schematic diagram of line junction；1 in figure, ITO electro-conductive glass；11, upper circuit layer；111, upper silver wire, 2, base；21, Lower circuit layer；211, lower silver wire；3, separation layer；31, supporting point；4, silver point glue.

Specific embodiment

As shown in Figure 1-Figure 3, a kind of G+G structure four-wire resistance type touch screen provided by the embodiment of the utility model, including The ITO electro-conductive glass 1 set gradually from up to down and base 2, on the ITO electro-conductive glass and base face relative to each other respectively It is provided with circuit layer 11 and lower circuit layer 21, the upper circuit layer 11 is connected separately at least two extractions with lower circuit layer 21 Line, the upper circuit layer 11 are equipped with upper silver wire 111, and the lower circuit layer 21 is equipped with lower silver wire 211；The upper silver wire 111 is under Silver wire 211 is connected by silver point glue 4, and the upper silver wire 111 of the junction (in order to distinguish, the area of left slash filling in Fig. 3 Domain is upper silver wire 111) it with lower silver wire 211 (in order to distinguish, the region of right slash filling is lower silver wire 211 in Fig. 3) is mutual The shape being meshed so that on junction the sum of thickness of silver wire 111 and lower silver wire 211 be equal to it is not connected locate upper silver wire or under The thickness of silver wire；Separation layer 3 is provided between upper circuit layer 11 and lower circuit layer 21, the separation layer 3 includes multiple energy will The supporting point 31 that the upper circuit layer and lower circuit layer separate.A kind of four line of G+G structure provided by the embodiment of the utility model Resistive touch screen, on the basis of existing G+G structure touch screen, by position and the upper and lower level of improving upper and lower level silver wire route The shape of silver wire connection position makes thickness in touch screen box by original 30 μm of (upper 10 μm of silver wire thickness, 10 μ of lower layer's silver wire thickness M, 10 μm of the thickness after silver point glue laminated is flat) it is reduced to 20 μm of (improved 10 μm of thickness with a thickness of single layer silver wire, silver point glue laminateds 10 μm of thickness after flat), the operating force of touch screen is reduced to 120g hereinafter, greatly improving the touch experience sense of user, can be expired The market demand of the high-end equipment field of foot expands our company in the market scope of high-end equipment field.Specifically:

(1) silver wire designs

By upper silver wire, lower silver wire mutually stagger design (existing scheme be overlap in space design, and 8 μm of insulating oils of use every From and insulation), will be needed at upper and lower layer conducting wire tie point with the place of silver point glue connection be staggered engagement design (herein without Insulating oil), as shown in Figure 1.Newly-designed silver paste overall thickness is reduced to one layer of thickness by the thickness (20 μm) of existing two layers of silver paste It spends (10 μm).I.e. original upper silver wire is to be overlapped on perpendicular with lower silver wire, so that its thickness with a thickness of two layers of silver paste (20 μm), and our silver wire that makes is staggered with lower silver wire, the upper silver wire of junction and lower silver wire in same level plane, So that on perpendicular with a thickness of one layer of thickness (10 μm).

Preferably, the applicant also further to the size of silver point glue, separation layer inner stuffing diameter and supporting point into Row design, specific as follows:

(2) optimization silver design for dispensing glue

Silver thickness for dispensing glue is still 10 μm, and rectangular area is the design size of silver point glue 3 in figure as shown in Figure 3: width is The width of silver wire subtracts 0.2mm on engagement place, and length is that the length of action of engagement place adds 0.5mm.Silver point glue position is in be covered completely Cover the position of engagement (silver point glue is crushed after touch screen fitting process is pressurized, and colloid, which presses to surrounding, can be completely covered engagement mouth).

(3) the smaller frame adhesive inner stuffing of diameter is selected

The separation layer is surrounded by frame adhesive, is equipped with filler, the frame adhesive inner stuffing in the frame adhesive Diameter be decreased to 15 μm (now design frame adhesive inner stuffing diameter be 25 μm), between both having reduced between two layers of electro-conductive glass Gap thickness also ensures that between upper and lower layer silver wire that silver is for dispensing glue and is reliably connected.

(4) reduce the distance between support spot diameter increase supporting point

The diameter of supporting point 31, height are reduced to 0.03mm, and (existing design supports spot diameter, is highly 0.035mm), line space design increases to as 3.5mm × 3.5mm (existing design supporting point spacing is 3mm × 3mm), all around Square distribution.

A kind of important technological parameters such as table 1 of G+G structure four-wire resistance type touch screen provided by the embodiment of the utility model It is shown:

Table 1

As seen from the above table, a kind of G+G structure four-wire resistance type touch screen provided by the utility model, reduces the behaviour of touch screen Make power to 120g hereinafter, greatly improving the touch experience sense of user, and other performances are unaffected: the service life is long, and high temperature resistant is high Wet, cold-resistant thermal impact is good.

Described is only the preferred embodiment of the utility model, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should all include the guarantor in the utility model Within the scope of shield.

Claims (6)

1. a kind of G+G structure four-wire resistance type touch screen, which is characterized in that including the ITO conduction glass set gradually from up to down Glass and base, the ITO electro-conductive glass and base are respectively arranged with circuit layer and lower circuit layer on face relative to each other, described Upper circuit layer and lower circuit layer are connected separately at least two lead-out wires, and the upper circuit layer is equipped with upper silver wire, the lower circuit Layer is equipped with lower silver wire；By silver point glue connection, the upper silver wire of the junction and lower silver wire are mutual for the upper silver wire and lower silver wire The shape being meshed, so that the sum of thickness of silver wire and lower silver wire is equal to not connected upper silver wire or the lower silver wire located on junction Thickness；Separation layer is provided between upper circuit layer and lower circuit layer, the separation layer can power on described equipped with multiple The supporting point that road floor and lower circuit layer separate.

2. G+G structure four-wire resistance type touch screen as described in claim 1, which is characterized in that on the junction silver wire with The sum of thickness of lower silver wire is equal to 10 μm.

3. G+G structure four-wire resistance type touch screen as described in claim 1, which is characterized in that the silver it is for dispensing glue with a thickness of 10μm。

4. G+G structure four-wire resistance type touch screen as described in claim 1, which is characterized in that the surrounding of the separation layer is set There is frame adhesive, filler is equipped in the frame adhesive, the diameter of the filler is 15 μm.

5. G+G structure four-wire resistance type touch screen as described in claim 1, which is characterized in that diameter, the height of the supporting point Degree is 0.03mm.

6. G+G structure four-wire resistance type touch screen as described in claim 1, which is characterized in that multiple supporting points are in just Rectangular distribution, the spacing of the two neighboring supporting point are 3.5mm × 3.5mm.