CN2671015Y

CN2671015Y - Contact control assembly of resistance contact control panel

Info

Publication number: CN2671015Y
Application number: CN 200320131910
Authority: CN
Inventors: 王仁君; 李昭松; 李联鑫; 黄俊翔; 林佑邦
Original assignee: Compal Electronics Inc; Swenc Technology Co Ltd
Current assignee: Compal Electronics Inc; Swenc Technology Co Ltd
Priority date: 2003-12-30
Filing date: 2003-12-30
Publication date: 2005-01-12
Anticipated expiration: 2013-12-30

Abstract

The utility model relates to a contact control assembly of resistance contact control panel, comprising a first conductor unit, a second conductor unit and a plurality of spacers arranged between the first conductor unit and the second conductor unit. The first conductor unit is provided with a first basal plate and a first transparent electrode layer formed on the surface of the first basal plate, and the second conductor unit is provided with a second basal plate and a second transparent electrode layer formed on the surface of the second basal plate. The second transparent electrode layers faces towards the first transparent electrode layer. The utility model is characterized in that the spacers are mutually diffused and arranged on one of the surfaces of the first transparent electrode layer and the second transparent electrode layer. The adjacent three spacers are arranged in the form of an acute triangle, and the force needed by the inducement for contact control is decreased by means of such arrangement.

Description

The resistor type touch control plate touch control component

Technical field

The utility model relates to a kind of resistor type touch control plate touch control component, particularly relates to a kind of resistor type touch control plate touch control component that the required application of force of touch-control sensing is diminished in order to isolation.

Background technology

Contact panel (Touch pad) detects the physical principle of touch point according to it, and general common be divided into resistance-type, condenser type are several.As shown in Figure 1, with the contact panel 9 of resistance-type, be by two a relative film 91, glass substrates 92 up and down basically and respectively be formed at the transparency electrode 911,921 on film 91 and glass substrate 92 apparent surfaces and be arranged on 93 formations of several spacers (Dotspacer) of 911,921 of upper and lower transparency electrodes.Upper and lower transparency electrode the 911, the 921st has the indium tin oxide (IndiumTin Oxide) of conductive characteristic, promptly general alleged ITO.Spacer 93 is to be used for avoiding the two contacted insulating gel material when film 91 is fitted with glass substrate 92, and each spacer 93 is to each other at a distance of a suitable spacing, therefore, push the transparency electrode 911 of top with pointer (stylus) 8 as the user after, upper and lower transparency electrode 911,921 just can contact with each other and mutual conduction generation effect.

Spacer 93 has the following aspects for the influence of contact panel quality:

1. acting force: from the structure of contact panel, spacer 93 is as the insulated barriers in the upper and lower conductive layers, then easily make the user when writing if the film of spacer 93 is too thick, need apply bigger acting force and upper and lower transparency electrode 911,921 be contacted with each other and induction is just arranged, so the relation of the thickness of spacer 93 and acting force be should give consideration in design.

2. the linearity: except the resistance value uniformity coefficient of upper and lower transparency electrode 911,921, the uniformity coefficient of spacer 93 also is a key factor that influences contact panel.When pointer 8 is streaked, if the path of its walking supported by even spacer 93 of the same size, then 911,921 contact moments of its upper and lower transparency electrode conduct the electric field partial pressure value that will be relatively stable, so just have a preferable linearity.Otherwise if spacer 93 is not of uniform size, then the electric field partial pressure value of its conduction will compare instability, and the linearity also can be affected, and easily causes the erroneous judgement when induction.

3. transmittance: contact panel is to be assembled on LCD fluorescent screen or the general display, if so the transmittance that contact panel can reach is high more, then for the user, just possesses better visual effect, therefore, the density of spacer 93 can not be too high to avoid the transmittance variation.

Present spacer 93 arrangement modes as shown in Figure 2, are generally the matrix form arrangement mode, also promptly in each spacer 93 adjacent fixed range repeated arrangement, promptly form with spacing a, b repeated arrangement on mutually perpendicular row, column respectively, common mode is a=b, promptly foursquare arrangement mode.In addition, as shown in Figure 3, also have upper and lower transparency electrode 911,921 all to be formed with spacer 93, and this kind arrangement mode still is based on rectangular arranged, to keep the density uniformity of spacer 93 on distributing on its surface.

Yet, as shown in Figure 1, 2, when from the point of application 912 downward application of forces, make when going up the sensed position 922 of transparency electrode 911 among this point is trapped in the rectangle that spacer 93 constituted downwards that adjacent partition device 93 numbers of an effective point of application 912 are four.As shown in Figure 3, upper and lower transparency electrode 911,921 all is formed with spacer 93 and also is the arrangement of rectangular mode at its surperficial arrangement mode.Above-mentioned two kinds of modes in the use, with Fig. 1 is example, because its sensed position 922 is all and drops on rectangle inside, adjacent partition device 93 numbers of sensed position 922 are four, so the application of force of above-mentioned dual mode all needs to resist the contact force of above-mentioned four spacers 93, just get so that upper and lower transparency electrode 911,921 induction conductings, the very efforts of contact panel.

The utility model content

Therefore, the purpose of this utility model provides a kind of Trackpad touch control component of making in the some spacer arrangement mode that reduces to respond to required application of force size.

The utility model mainly is by putting the configuration of spacer, make its three the most contiguous formed triangles of point, its interior angle value fixes on 45 °≤interior angle≤72 °, arrange the driving force that can make Trackpad whereby and reach decline and uniform characteristic, so that the utlity model has the effect that reduces driving force and improve the reaction time, again when interior angle is 60 °, then form an equilateral triangle, because of equilateral triangle has equilateral characteristic, so driving force is the most even, institute thinks best configuration mode of the present utility model.

Oxygon of the present utility model, its interior angle equals 72 ° and to be not below or equal to 45 ° be feature to be not more than, it has the effect that the sensing precision that makes Trackpad obtains lifting, to put spacer by the utility model disposes in the mode of oxygon, can make the distortion smaller volume of its second conductor element, and then reach when operation required acting force that applies and diminish, and after the local contact area of second conductor element diminishes, voltage differences Δ V in its contact area also can diminish, so can reach the characteristic that the sensing precision promotes.

Regular pentagon is one least to have symmetry and a unit shape that can't periodic arrangement in two-dimensional space, and be divided into 5 equal portions with 360 °, promptly 360 °/5=72 °, therefore maximum interior angle of the present utility model is decided to be 72 °, the interior angle minimum of this regular pentagon is 45 ° again, so minimum interior angle of the present utility model is decided to be 45 °, again when interior angle is 60 °, then form equilateral triangle, the characteristic that has the equal proportion symmetry because of positive dihedral, and can repeat uniform repeated arrangement, be most preferred embodiment of the present utility model therefore.

Again the utility model with interior angle due to 45 °≤interior angle≤72 °, its another reason is that consideration length of side difference is crossed conference reduction driving force or the uneven problem of driving force, as an interior angle during greater than 72 °, differing greatly of the minimum length of side and maximal side, therefore being easy to generate regional area has than large driving force, and also can be formed with the zone of less driving force, to generally speaking, the driving force difference distribution will enlarge.

For further specifying above-mentioned purpose of the present utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.

Description of drawings

Fig. 1 is a synoptic diagram, and existing pointer contact one an existing contact panel is described.

Fig. 2 is a synoptic diagram, illustrates that the spacer of this existing contact panel is arranged mode.

Fig. 3 is a synoptic diagram, and another arrangement mode of the spacer of this existing contact panel is described.

Fig. 4 is a three-dimensional exploded view, and the resistor type touch control plate touch control component of the utility model one preferred embodiment is described.

Fig. 5 is a synoptic diagram, and the arrangement mode of the spacer of this preferred embodiment is described.

Fig. 6 is a synoptic diagram, explanation one existing pointer contact the utility model resistor type touch control plate touch control component.

Embodiment

As shown in Figure 4, the resistor type touch control plate touch control component of the utility model preferred embodiment comprises: one first conductor element 1, one second conductor element 2 and position several spacers 3 between first conductor element and second conductor element; Wherein, this first conductor element 1 has first transparent electrode layer 12 that one first substrate 11 and is formed at first substrate, 11 surfaces; This second conductor element 2 and first conductive unit 1 separately, it has second transparent electrode layer 22 that one second substrate 21 and is formed at second substrate, 21 surfaces, and this second transparent electrode layer 22 is to be provided with towards this first transparent electrode layer 12.In this preferred embodiment, the material of first substrate 11 is a glass substrate, and second substrate 21 mainly is the transparent membrane that is made of a poly terephthalic acid diethylester (PET) layer.

First transparent electrode layer 12 and second transparent electrode layer 22 are meant indium tin oxide (ITO) plated film, be first transparent electrode layer 12 and second transparent electrode layer 22 being respectively formed on first substrate, 11 end faces, and second substrate 21 also can be adopted above-mentioned evaporation or sputtering way second transparent electrode layer 22 is arranged on its bottom surface 21 such as evaporation (evaporation), sputter physical vapour deposition (PVD) modes such as (sputtering).

Several spacers 3 are arranged on first transparent electrode layer 11.By the introduction of front as can be known, some spacer 3 is after being used for avoiding first conductor element 1 and second conductor element 2 to engage, and avoids Trackpad the two contacted possibility when start.For driving force is evenly distributed, point spacer 3 should be good with the systematicness periodic arrangement, on the other hand, the problem that is easy to judge by accident for fear of touch point in the past, so should dwindle a spacer 3 spacing to each other, just increase the number of unit area mid point spacer 3, can guarantee under certain degree of pressure, first transparent electrode layer 12 and second transparent electrode layer 22 can be in contact with one another, but if the number of some spacer 3 is too many, then can influence transparency again, reduce the sharpness of watching, learn that by real work and experiment point spacer 3 each other should be separately between 0.3～0.8mm.

In addition, some spacer 3 implanted prosthetics of at present general electric resistance touch-control panel can be divided into two systems.Be described as follows at this:

A kind of is to carry out with so-called screen printing technology, just go up many apertures that are shaped with electroforming (electron-forming) or laser drill (laser micro-machining) mode at a copper coin (figure does not show) earlier, its diameter is between 40 μ m to 50 μ m, then glass substrate 1 is inserted in the wire mark machine again, and carry out screen painting as half tone with this copper coin, make the glue material flow through and on first transparent electrode layer 12, form several spacers 3 behind the aperture on the copper coin, again via the ultraviolet ray baking, make its curing molding at last.And the glue material that constitutes some spacer 3 is by acrylic amine carbamate (urethaneacrylate), acrylic polyester (polyester acrylate), and the potpourri that material constituted such as silicon dioxide.

Another kind method then is the mode with exposure imaging, and it is after depositing one deck glue material earlier on the glass substrate 1, comes the etching off redundance with a light shield (figure does not show) in the exposure imaging mode again, and remaining part is a spacer 3.

As shown in Figure 5, the resistor type touch control plate touch control component of the utility model preferred embodiment, be to make each some spacer 3 periodic arrangement that forms on first transparent electrode layer 12, and the distance of the some spacer 3 that every bit spacer 3 is adjacent is identical, and per three some spacers 3 become an oxygon 31 modes and arrange, in this preferred embodiment, oxygon 31 is an equilateral triangle, and its arbitrary interior angle is 60 degree.In addition, every bit spacer 3 all have six and adjacent some spacer 3, so a hexagon 32 that is made of this spacer 3 is arranged periodically.

Shown in Fig. 4,5,6, when using pointer 4 from the downward application of force of the point of application 211 of first conductive unit 1, make second transparent electrode layer 22 be trapped in sensed position 121 within the oxygon 31 that a spacer 3 constituted downwards from the point of application 211, because its sensed position is all and drops within the oxygon 31, then neighbor point spacer 3 numbers of an effective point of application 211 are three, and the contact force of above-mentioned three some spacers 93 gets so that the contact panel induction so the application of force only need be resisted.In addition, the contact area of oxygon 31 is less compared to the contact area of traditional rectangular arranged mode, so but the degree of accuracy of its sensing raising.

What specify is, in design, be the symmetric arrangement mode of tool least with regular pentagon for example, each interior angle of regular pentagon is 72 degree, and because the right-angle triangle of ranking method in the past, it deducts the then arbitrary interior angle in its right angle is 45 degree, reasons out wantonly three adjacent some spacers 93 of this preferred embodiment, the arbitrary interior angle that removes above-mentioned oxygon 31 is the example of 60 degree, and arbitrary interior angle is spent between 72 degree between 45 and is the enforcement sample attitude that is suitable for this arrangement mode.

Be all and dropped on rectangle inside compared to put its sensed position of spacer in the past, the neighbor point spacer number of sensed position is four, so need the contact force of four some spacers of opposing, just get so that first transparent electrode layer 12 and the 22 induction conductings of second transparent electrode layer, very require great effort, resistor type touch control plate touch control component of the present utility model is taked to arrange periodically with oxygon 31 with wantonly three some spacers 3 the most contiguous on the arrangement mode of a spacer 3, only need resist the contact force of three some spacers 93 when making the application of force so that the contact panel induction is comparatively laborsaving.And because the contact area of oxygon 31 is less compared to the contact area of traditional rectangular arranged mode, so but the degree of accuracy of its sensing raising.

Claims

1. resistor type touch control plate touch control component, comprise one first conductor element, one and this first conductive unit second conductor element separately, reach several and be arranged in the some spacer on this first transparent electrode layer and both surfaces wherein of this second transparent electrode layer mutually diffusedly, it is characterized in that:

This first conductor element has first transparent electrode layer that one first substrate and is formed at this first substrate surface;

This second conductor element has second transparent electrode layer that one second substrate and is formed at this second substrate surface, and this second transparent electrode layer is towards this first transparent electrode layer;

The most adjacent three of this spacer forms an oxygon.

2. resistor type touch control plate touch control component as claimed in claim 1 is characterized in that:

This first substrate is a glass material, and this second substrate is a transparent membrane of being made by poly terephthalic acid diethylester material, and this first transparent electrode layer and this second transparent electrode layer are that indium tin oxide is made.

3. resistor type touch control plate touch control component as claimed in claim 1 is characterized in that:

The oxygon that the most adjacent three constituted of this spacer is an equilateral triangle.

4. resistor type touch control plate touch control component as claimed in claim 1 is characterized in that:

Arbitrary interior angle of the oxygon that the most adjacent three constituted of this spacer is not more than 72 degree and is not less than 45 degree.

5. resistor type touch control plate touch control component as claimed in claim 1 is characterized in that:

This spacer is to be formed on this first transparent electrode layer in the screen painting mode.

6. resistor type touch control plate touch control component as claimed in claim 1 is characterized in that:

This spacer is to be formed on this first transparent electrode layer in the exposure imaging mode.