CN104111759A - Touch panel - Google Patents
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- CN104111759A CN104111759A CN201310136536.1A CN201310136536A CN104111759A CN 104111759 A CN104111759 A CN 104111759A CN 201310136536 A CN201310136536 A CN 201310136536A CN 104111759 A CN104111759 A CN 104111759A
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Abstract
The invention provides a touch panel which comprises a first bearing component, multiple first electrode string arrays and multiple second electrode string arrays. Each first electrode string array comprises multiple first electrodes connected into a string along a first direction, and each second electrode string array comprises multiple second electrodes connected into a string along a second direction. In a randomly-selected unit sensing area, a ratio between a proportion that each first electrode accounts for the unit sensing area and a proportion that each second electrode accounts for the unit sensing area is 1:1.2-1:1.4, wherein length and width of the unit sensing area are equal to pitch of the first electrodes in the first direction and pitch of the same in the second direction respectively.
Description
Technical field
The invention relates to a kind of contact panel, and relate to especially a kind of capacitance type touch-control panel.
Background technology
Contact panel can be divided into electric resistance touch-control panel, capacitance type touch-control panel, optical touch control panel, sound wave type contact panel and electromagnetic touch-control panel haply according to the difference of sensing form.Because capacitance type touch-control panel has that the reaction time is fast, fiduciary level is good and the advantage such as resolution high (high definition) compared to the contact panel of other types, be therefore widely used on all kinds of hand-hold electronic devices.In addition, in capacitance type touch-control panel, the sensing technology of mutual capacitance type widely develops.
Particularly, in mutual capacitance type touch control panel, be provided with the touch-control electrode unit being formed by drive electrode and induction electrode.To drive signal (voltage) to be inputted by drive electrode time, induction electrode can obtain induced signal (voltage) by coupling.In the time that touchless event occurs, between drive electrode and induction electrode, can form stable mutual capacitance (mutual capacitance).When touch event occurs, there is corresponding variation with the mutual capacitance meeting between induction electrode in drive electrode, this change with the size of the position of touch event generation, size, touch-control electrode unit and driving and induction electrode between adjacent edge overall length degree relevant.
When design electrode (induction electrode and drive electrode), touch-control electrode unit is of a size of an important parameter.In theory, touch-control electrode unit size is less, and the signal linearity and the sensitivity meeting of holding mutually formula contact panel are better, but consider after manufacturing capacity and manufacturing cost, and the size of touch-control electrode unit has certain restriction and can not unrestrictedly dwindle.Therefore, touch event possibly cannot cross over drives and induction electrode (area of for example touch points is too small) simultaneously, and this is the mutual capacitance variable quantity deficiency causing between drive electrode and induction electrode, and touch-control sensing ability is reduced.In other words, the signal linearity of mutual capacitance type touch control panel and sensitivity are desirable not to the utmost.
Summary of the invention
The invention provides a kind of contact panel, there is desirable the signal linearity and sensitivity, and the size that does not need to reduce touch-control electrode unit.
Contact panel of the present invention, comprises a bearing carrier, multiple the first electrode tandem and multiple the second electrode tandem.The first electrode tandem and the second electrode tandem are all carried by bearing carrier.Each the first electrode tandem comprises that multiple first connects pattern and connect multiple first electrodes of bunchiness by multiple the first connection patterns along a first direction, and wherein each the first electrode has one first master pattern and multiple first sub pattern that is connected in the first master pattern of mainly extending along first direction.Each the second electrode tandem comprises that multiple second connects pattern and connect by multiple second pattern connects bunchiness multiple the second electrodes along a second direction.The second electrode and the first electrode gap that is separated by.Each the second electrode has one second master pattern and multiple second sub pattern that is connected in the second master pattern of extending along second direction, and the first sub pattern and the second sub pattern alternative arrangement.In a unit sensing area of choosing arbitrarily on contact panel, the ratio of each the first shared unit of electrode sensing area and each the second shared unit of electrode sensing area is 1: 1.2～1: 1.4, wherein the length of unit sensing area and wide the first electrode pitch size in a first direction and the pitch size in second direction of being respectively.
In one embodiment of this invention, the profile of the first above-mentioned electrode and the profile complementation of the second electrode.
In one embodiment of this invention, the first above-mentioned electrode tandem also comprises that multiple first connects pattern, so that the first electrode is connected into each the first electrode tandem along first direction.
In one embodiment of this invention, the second above-mentioned electrode tandem also comprises that multiple second connects pattern, so that the second electrode is connected into each the second electrode tandem along second direction.
In one embodiment of this invention, above-mentioned gap is by 200 microns to 300 microns.
In one embodiment of this invention, above-mentioned contact panel also comprises that multiple void puts electrode, between the first electrode and the second electrode.Void is put electrode can be arranged in many rows in gap.Void is put distance and the empty distance of putting between electrode that distance, void between electrode and the first electrode puts between electrode and the second electrode and is not more than 30 microns.
In one embodiment of this invention, above-mentioned bearing carrier comprises a sheet material or film material.In addition, contact panel also comprises a decorative layer, and it is arranged on the neighboring area of bearing carrier, and the first electrode tandem and the second electrode tandem are positioned at the same side of bearing carrier.
In one embodiment of this invention, above-mentioned bearing carrier comprises first plate/film material and second plate/film material.The first electrode tandem and the second electrode tandem can be between the first plate/film material and the second plate/film materials, and separate by an insulating medium.Now, the first plate/film material and the second plate/film material wherein one is for example an overlay.The first electrode tandem is positioned at the first plate/film material and the wherein relative both sides of another one of the second plate/film material with the second electrode tandem.In addition, the first electrode tandem can be configured on the first plate/film material, and the second electrode tandem can be configured on the second plate/film material.Now, the first plate/film material and the second plate/film material sequentially stack arrangement makes the first electrode tandem and the second electrode tandem wherein one is between the first plate/film material and the second plate/film material, and another one is no.Contact panel also comprises an overlay.Overlay is bonded on the first plate/film material and the second plate/film material.
In one embodiment of this invention, the first sub pattern of above-mentioned each the first electrode is stretched out by the first master pattern, and the bearing of trend of the first sub pattern is not parallel to first direction.The bearing of trend of the first sub pattern is parallel to second direction.Or one of them person of the first sub pattern is pointed to the center of one of them adjacent the second electrode by the outward extending bearing of trend of the first master pattern.In addition, one of them person of the first sub pattern is selectively the center that is first parallel to second direction and points to one of them adjacent the second electrode by the outward extending bearing of trend of the first master pattern.The first sub pattern can have different pattern widths.
In one embodiment of this invention, above-mentioned each the first electrode and each the second electrode have respectively symmetrical profile.
In one embodiment of this invention, each second sub pattern of above-mentioned each the second electrode comprises a main split and multiple sub-branch.Sub-branch is connected in main split, and main split is stretched out by the second master pattern, and the bearing of trend of main split is not parallel to second direction.Each sub-branch can be the center that is first parallel to second direction and points to one of them adjacent the first electrode by the outward extending bearing of trend of main split.Or each sub-branch is to be parallel to second direction by the outward extending bearing of trend of main split.In addition, each sub-branch is selectively that the center of first pointing to one of them adjacent the first electrode is parallel to second direction again by the outward extending bearing of trend of main split.In one embodiment, the width of main split is greater than the width of sub-branch.
Based on above-mentioned, in the contact panel of the embodiment of the present invention, the first electrode and the second electrode have multiple branches and these branch's alternative arrangements on pattern.Therefore, choose at contact panel the local area that unit sensing area arbitrarily has all been contained the first electrode and the second electrode.Make the transducing signal of contact panel there is the desirable linearity.In addition, the area ratio of the first electrode and the second electrode contributes to promote the sensitivity of touch-control sensing.Therefore, the first electrode and the second electrode need not have desirable sensing yield by size reduction.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Brief description of the drawings
Fig. 1 is depicted as on the part of contact panel of first embodiment of the invention and looks schematic diagram;
Fig. 2 is depicted as on the part of contact panel of second embodiment of the invention and looks schematic diagram;
Fig. 3 is depicted as on the part of contact panel of third embodiment of the invention and looks schematic diagram;
Fig. 4 is the first electrode, second electrode and the empty local schematic layout pattern of putting electrode of one embodiment of the invention;
Fig. 5 is the first electrode, second electrode and the empty local schematic layout pattern of putting electrode of another embodiment of the present invention;
Fig. 6 is the first electrode, second electrode and the empty local schematic layout pattern of putting electrode of further embodiment of this invention;
Fig. 7～Figure 11 is the diagrammatic cross-section of the contact panel of the multiple embodiment of the present invention;
Figure 12 is depicted as the schematic diagram of the touch control display apparatus of one embodiment of the invention.
Description of reference numerals:
1: touch control display apparatus;
2,10,20,30,40,50,100,200,300: contact panel;
3: display panel;
4: adhesive coating;
12,22,32,42,52: bearing carrier;
14,24,34,44,54: touch control component;
16: decorative layer;
26,36,58: overlay;
28,38,46,56A, 56B: colloid;
34A, 44A, 54A: the first electrode layer;
34B, 44B, 54B: the second electrode lay;
42A, 52A: first substrate;
42B, 52B: second substrate;
110,210,310: the first electrode tandems;
120,220,320: the second electrode tandems;
112,212,312, E1: the first electrode;
112A, 212A, 312A: the first master pattern;
112B, 112C, 212B, 212C, 312B, 312C: the first sub pattern;
114,214, connect pattern at 314: the first;
122,222,322, E2: the second electrode;
122A, 222A, 322A: the second master pattern;
122B, 222B, 322B: the second sub pattern;
122B1,222B1,322B1: main split;
122B2,222B2,322B2: sub-branch;
124,224, connect pattern at 324: the second;
A: unit sensing area;
D1: first direction;
D2: second direction;
Ed: void is put electrode;
G: gap;
P1, P2: save huge;
R: track.
Embodiment
Fig. 1 is depicted as on the part of contact panel of first embodiment of the invention and looks schematic diagram.Please refer to Fig. 1, contact panel 100 includes multiple the first electrode tandems 110 and multiple the second electrode tandem 120.Each the first electrode tandem 110 comprises that multiple the first electrodes 112 and multiple first connect pattern 114, and wherein the first connection pattern 114 connects bunchiness by multiple the first electrodes 112 along a first direction D1.Each the second electrode tandem 120 comprises that multiple the second electrodes 122 and multiple second connect pattern 124, and wherein the second connection pattern 124 connects bunchiness by multiple the second electrodes 122 along a second direction D2.In addition, the second electrode 122 and the first electrode 112 clearance G of being separated by, therefore the first electrode 112 and the second electrode 122 do not overlap each other.
Particularly, the first electrode tandem 110 and the second electrode tandem 120 can be carried by a bearing carrier (not shown), but, and in order clearly to represent the design of electrode.In Fig. 1, only express these electrodes and do not express bearing carrier.In addition, Fig. 1 only schematically represents that with straight line the first connection pattern 114 is connected pattern 124 with second, but the first connection pattern 114 is connected pattern 124 and is made up of plain conductor or metal grill with second, or is made up of identical material with corresponding electrode (the first electrode 112 or the second electrode 122).For example, first connects pattern 114 can be made by identical material with the first electrode 112 in identical making step, and the second connection pattern 124 can be made by identical material with the second electrode 122 in identical making step.Therefore, each the first electrode tandem 110 or each the second electrode tandem 120 is optionally made up of a continuous conductive pattern.
In the present embodiment, each the first electrode 112 is made up of one first master pattern 112A and multiple the first sub pattern 112B and 112C.The first master pattern 112A mainly extends along first direction D1, and the end of the first master pattern 112A is connected in the first connection pattern 114.The first sub pattern 112B and 112C are connected in the first master pattern 112A and are stretched out by the first master pattern 112A.At this, each the first electrode 112 is made up of a continuous conductive pattern in fact, and above-mentioned master pattern and sub pattern are to be only divided into different parts according to the profile of conductive pattern and bearing of trend.Therefore,, in specific design, between master pattern and sub pattern, can not have a common boundary.
The first sub pattern 112B or the first sub pattern 112C are not parallel to first direction D1 by the outward extending bearing of trend of the first master pattern 112A.Therefore, the first sub pattern 112B is for example extended towards the first electrode 112 of the first adjacent electrode tandem 110 by the first master pattern 112A along second direction D2 haply.And the first sub pattern 112C is extended towards the second adjacent electrode 122 center by the first master pattern 112A along second direction D2 haply.
The pattern of the second electrode 122 is for example made up of the second master pattern 122A and multiple the second sub pattern 122B that is connected in the second master pattern 122A.At this, the main bearing of trend of the second master pattern 122A is roughly parallel to second direction D2, and the end of the second master pattern 122A is connected in the second corresponding connection pattern 124.In addition, in the present embodiment, each second sub pattern 122B includes a 122B1 of main split and multiple 122B2 of sub-branch, and wherein the 122B2 of sub-branch is stretched out by the 122B1 of main split and the 122B2 of sub-branch is connected in the second master pattern 122A by the 122B1 of main split.In other words, the 122B2 of sub-branch can not be contacted with the second master pattern 122A.And in the design of the present embodiment, the width of the 122B1 of main split can selectivity be greater than the width of the 122B2 of sub-branch.
As shown in Figure 1, the 122B1 of main split of each the second sub pattern 122B is outwards protruded out along first direction D1 by the second master pattern 122A haply, and the bearing of trend of the 122B1 of main split is not parallel to second direction D2.In addition, each 122B2 of sub-branch is first extended and extends towards the first adjacent electrode 112 center along second direction D2 by the 122B1 of main split.Thus, the first sub pattern 112B and 112C and the second sub pattern 122B can be alternately arranged with each other.And in the present embodiment, the first electrode 112 and the second electrode 122 have respectively symmetrical profiles, and the profile of the first electrode 112 and the second electrode 122 is complementary haply.
In contact panel 100, the first electrode tandem 110 can be considered as induction electrode, and the second electrode tandem 120 can be considered as drive electrode.When user is during with finger contact contact panel 100, contact panel 100 can change to judge according to the mutual capacitance between the first electrode tandems 110 and the second electrode tandem 120 position of finger contact.Due to the first electrode 112 act as reception signal, the area of the first electrode 112 is larger may receive more from extraneous noise.So, in electrode design, often want to make the area area relatively large and the first electrode 112 of the second electrode 122 relatively little.But, the area of the first electrode 112 too young pathbreaker is met just before the too high in resistance of the first electrode tandem 110, or the problem such as signal coupling amount is inadequate.Therefore, the area ratio of the first electrode 112 and the second electrode 122 can be adjusted to some extent according to the design of contact panel 100.
In the present embodiment, in a unit sensing area A of choosing arbitrarily on contact panel 100, the ratio of the first electrode 112 area occupied and the second electrode 122 area occupied is 1: 1.2～1: 1.4, wherein the length of unit sensing area A and wide pitch P1 size and the pitch P2 size on second direction D2 of the first electrode 112 on first direction D1 that equal respectively.When contact panel 100 is set as allowing user directly to operate with finger, the size of unit sensing area A is for example set as 5 square millimeters (mm2).Now, no matter any position of finger contact contact panel 100, the contact area that causes of finger can contain the part area that has the first electrode 112 and the second electrode 122, and touched to the first electrode 112 and the area ratio of the second electrode 122 be 1: 1.2～1: 1.4.So contact panel 100 can effectively be touched sensing.Especially,, in the time that conductor is as for example, along particular track (track R) mobile above contact panel 100 in finger, the signal that these the first electrode tandems 110 receive can present the quite good linearity, and makes touching sensing sensitivity more desirable.But above-mentioned numerical values recited is only the use illustrating, and the present invention is not as limit.
Fig. 2 is depicted as on the part of contact panel of second embodiment of the invention and looks schematic diagram.Please refer to Fig. 2, contact panel 200, similar in appearance to contact panel 100, includes many first electrode tandems 210 and many second electrode tandems 220.Certainly, these the first electrode tandems 210 and the second electrode tandem 220 can be carried by a bearing carrier, but, in order clearly to represent the design of electrode, Fig. 2 by bearing carrier omit and not shown.Each the first electrode tandem 210 comprises multiple the first electrodes 212 and the first electrode 212 is connected to the first connection pattern 214 of row bunchiness along first direction D1.Each the second electrode tandem 220 comprises multiple the second electrodes 222 and the second electrode 222 is connected to the second connection pattern 224 of row bunchiness along second direction D2.First connects pattern 214, and be connected pattern 224 with second staggered but be electrically insulated each other.In addition, the second electrode 222 and the first electrode 212 clearance G of being separated by, therefore the first electrode 212 and the second electrode 222 do not overlap each other.
Each the first electrode 212 has the one first master pattern 212A and multiple the first sub pattern 212B and the 212C that is connected in the first master pattern 212A that mainly extend along first direction D1.The first master pattern 212A is for example for having the pattern of double-head arrow, and the first master pattern 212A mainly extends along first direction D1.The first sub pattern 212B and 212C are the part that main bearing of trend is not parallel to first direction D1.The first sub pattern 212B can be connected in the middle body of the first master pattern 212A, and is stretched out by the first master pattern 212A along second direction D2 haply.The first sub pattern 212C is for example connected in the end portion of the first master pattern 212A, and is extended towards the second adjacent electrode 222 center by the first master pattern 212A haply.Now, the bearing of trend of the first sub pattern 212C had both been not parallel to first direction D1 and had also been not parallel to second direction D2.But, such design is only the use illustrating, and the present invention should be as limit.
The profile of each the second electrode 222 roughly can be divided into one second master pattern 222A and multiple the second sub pattern 222B that are connected in the second master pattern 222A, and wherein each second sub pattern 222B can also be made up of a 222B1 of main split and multiple 222B2 of sub-branch.The second master pattern 222A is defined herein as the pattern extending along second direction D2, and the two ends of the second master pattern 222A are connected to the second corresponding connection pattern 224.The 222B1 of main split in the second sub pattern 222B is outwards protruded out by the second master pattern 222A, and the direction that protrudes out of the 222B1 of main split is selectively parallel to first direction D1.The 222B2 of sub-branch is connected in the 222B1 of main split and is outwards protruded out by the 222B1 of main split.The bearing of trend of each 222B2 of sub-branch is for example first to extend and extend along second direction D2 towards the first adjacent electrode 212 center.Thus, the profile of the first electrode 212 and the second electrode 222 is complementary haply distributes to realize planar sensing electrode.At this, the first electrode 212 and the second electrode 222 have respectively symmetrical design.
In a unit sensing area A of choosing arbitrarily on contact panel 200, the ratio of the first electrode 212 area occupied and the second electrode 222 area occupied is 1: 1.2～1: 1.4, wherein the length of unit sensing area A and wide pitch P1 size and the pitch P2 size on second direction D2 of the first electrode 212 on first direction D1 that be respectively.In the present embodiment, the size of unit sensing area A is for example set as 5 square millimeters of (mm
2), but the present invention is not as limit.As in the foregoing embodiment, no matter any position of finger contact contact panel 200, the contact area that finger causes can contain to be had the first electrode 212 of certain area ratio and the second electrode 222 and effectively touches sensing.Especially, in the time that finger moves along particular track above contact panel 200, the signal that these the first electrode tandems 210 receive can present the quite good linearity, and makes touching sensing sensitivity more desirable.At this, the size of above-mentioned unit sensing area A is only the use illustrating, not in order to limit the present invention.In fact, the size of the first electrode 212 and the second electrode 222 can be because determining according to the size of contact panel 200 and resolution requirements and use-pattern.Therefore, the size of unit sensing area A can be greater than or be less than 5 square millimeters of (mm
2).
Fig. 3 is depicted as on the part of contact panel of third embodiment of the invention and looks schematic diagram.Please refer to Fig. 3, contact panel 300 includes many first electrode tandems 310 and many second electrode tandems 320.These the first electrode tandems 310 and the second electrode tandem 320 can be carried by bearing carrier, but Fig. 3 does not illustrate out by bearing carrier.Each the first electrode tandem 310 comprises multiple the first electrodes 312 and the first electrode 312 is connected to the first connection pattern 314 of row bunchiness along first direction D1.Each the second electrode tandem 320 comprises multiple the second electrodes 322 and the second electrode 322 is connected to the second connection pattern 324 of row bunchiness along second direction D2.First connects pattern 314, and be connected pattern 324 with second staggered but be electrically insulated each other.In addition, the second electrode 314 and the first electrode 312 clearance G of being separated by, therefore the first electrode 312 and the second electrode 322 do not overlap each other.
Each the first electrode 312 has the one first master pattern 312A and multiple the first sub pattern 312B and the 312C that is connected in the first master pattern 312A that mainly extend along first direction D1.The first master pattern 312A is for example cuspidated strip patterns of tool of two ends, and the first master pattern 312A mainly extends along first direction D1.The first sub pattern 312B and 312C are the part that main bearing of trend is not parallel to first direction D1.The first sub pattern 312B can be connected in the middle body of the first master pattern 312A, and is stretched out by the first master pattern 312A along second direction D2 haply.The first sub pattern 312C is for example connected in the end portion of the first master pattern 312A, and is first stretched out and extended towards the second adjacent electrode 322 center by the first master pattern 312A along second direction D2 haply.But, such design is only the use illustrating, and the present invention should be as limit.
The profile of each the second electrode 322 roughly can be divided into one second master pattern 322A and multiple the second sub pattern 322B that are connected in the second master pattern 322A, and wherein each second sub pattern 322B can also be made up of a 322B1 of main split and multiple 322B2 of sub-branch.The second master pattern 322A is defined herein as the pattern extending along second direction D2, and the two ends of the second master pattern 322A are connected to the second corresponding connection pattern 324.The 322B1 of main split in the second sub pattern 322B is outwards protruded out by the second master pattern 322A, and the direction that protrudes out of the 322B1 of main split is selectively parallel to first direction D1.The 322B2 of sub-branch is connected in the 322B1 of main split and is outwards protruded out by the 322B1 of main split along second direction D2.Thus, the profile of the first electrode 312 and the second electrode 322 is complementary haply distributes to realize planar sensing electrode.
Similar in appearance to previous embodiment, in a unit sensing area A of choosing arbitrarily on contact panel 300, the ratio of the first electrode 312 area occupied and the second electrode 322 area occupied is 1: 1.2～1: 1.4, wherein the length of unit sensing area A and wide pitch P1 size and the pitch P2 size on second direction D2 of the first electrode 312 on first direction D1 that be respectively.So, contact panel 300 can have desirable touching sensing sensitivity.In fact, the size of the first electrode 312 and the second electrode 322 can be in response to the size of contact panel 300 and resolution requirements and use-pattern and is determined.Therefore, the size of unit sensing area A can equal, is greater than or is less than 5 square millimeters of (mm
2).
In the aforementioned embodiment, because the profile of the first electrode 112,212,312 and the second electrode 122,222,322 is respectively the figure with multiple branches, therefore the length of side of each electrode profile increases many significantly.Now, the growth of the capacitive coupling effect between the first electrode 112,212,312 and the second electrode 122,222,322 based on the profile length of side and significantly increasing, this will cause driving chip load obviously to increase.In order to reduce the load that drives chip, the clearance G between the first electrode 112,212,312 and the second electrode 122,222,322 can moderately be adjusted.Table one represents that clearance G between the first electrode 112,212,312 and the second electrode 122,222,322 is on driving the relation that affects of chip load and the rate of change of capacitance that drives chip to receive.
Table one
As shown in Table 1, clearance G can allow load reduce approximately 50% more than increasing to 200 microns, and rate of change of capacitance still maintains more than 95%.Therefore,, in the electrode design of previous embodiment, clearance G can selectively be set to by the size of 200 microns to 300 microns to maintain desirable touch-control sensing sensitivity.But, the clearance G of increase will make user perceive the existence of these clearance G and reduces the visual effect of contact panel 100～300.The effect of looking that therefore, can optionally be provided with void between the first electrode 112,212,312 and the second electrode 122,222,322 and put electrode and promote contact panel 100～300.Below illustrate that the accompanying drawing of arranging in pairs or groups illustrates the first electrode, the second electrode and empty design and layout of putting electrode, but the present invention is not as limit.
Fig. 4 is the first electrode, second electrode and the empty local schematic layout pattern of putting electrode of one embodiment of the invention.Please refer to Fig. 4, the clearance G of being separated by between the first electrode E1 and the second electrode E2, and void is put electrode Ed and is for example arranged between the first electrode E1 and the second electrode E2 to fill clearance G place area.At this, void is put electrode Ed and is being complied with the profile of clearance G and arranging.And for fear of the electric connection between these electrodes and the good effect of looking is provided, distance and empty distance of putting between electrode Ed and the second electrode E1 that void is put between electrode Ed and the first electrode E1 are neither greater than 30 microns.
Fig. 5 is the first electrode, second electrode and the empty local schematic layout pattern of putting electrode of another embodiment of the present invention.Please refer to Fig. 5, the clearance G of being separated by between the first electrode E1 and the second electrode E2, and void is put electrode Ed and is for example arranged between the first electrode E1 and the second electrode E2 to fill clearance G place area.At this, void puts that electrode Ed is for example made up of multiple section and multiple section is being complied with the profile of clearance G and arranging.Now, void is put between electrode Ed and the first electrode E1 distance and empty distance of putting between electrode Ed and the second electrode E1 are neither greater than 30 microns.In addition the distance that, void is put between multiple sections of electrode Ed is also not more than 30 microns.
Fig. 6 is the first electrode, second electrode and the empty local schematic layout pattern of putting electrode of further embodiment of this invention.Please refer to Fig. 6, the clearance G of being separated by between the first electrode E1 and the second electrode E2, and void is put electrode Ed and is for example arranged between the first electrode E1 and the second electrode E2 to fill clearance G place area.At this, void puts that electrode Ed is for example made up of multiple section and multiple section is being complied with the profile of clearance G and is being arranged to two rows.Now, void is put between electrode Ed and the first electrode E1 distance and empty distance of putting between electrode Ed and the second electrode E1 are neither greater than 30 microns.In addition the distance that, void is put between multiple sections of electrode Ed is also not more than 30 microns.Generally speaking the void that, Fig. 4 to Fig. 6 records is put electrode Ed and can be applied in contact panel 100～300 and look effect to contribute to improve in any one.In addition, table two is expressed as void and puts the setting of electrode for the impact of the rate of change of capacitance that drives chip load and driving chip to receive.
Table two
As shown in Table 2, void is set between the first electrode E1 and the second electrode E2 and puts electrode Ed and may slightly increase and drive the load of chip, but still can obtain desirable rate of change of capacitance.Therefore, void is put the effect of looking that really can effectively improve contact panel 100～300 that arranges of electrode Ed, and makes contact panel 100～300 possess desirable cell transmission rate.
Fig. 7～Figure 11 is the diagrammatic cross-section of the contact panel of the multiple embodiment of the present invention.Please refer to Fig. 7, contact panel 10 comprises a bearing carrier 12, a touch control component 14 and a decorative layer 16.Bearing carrier 12 can be plate/film material of transparent substrates or the overlay with ideal machine intensity (cover plate) etc.Touch control component 14 can comprise the first electrode tandem 110,210 or 310 and the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth.In addition, 16 of decorative layers be arranged on bearing carrier 12 neighboring area and position between touch control component 14 and bearing carrier 12.When the contact panel 100～300 in above-described embodiment, any one has the cross-section structure design of contact panel 10 of Fig. 7, the first electrode tandem 110,210 or 310 and the second electrode tandem 120,220 or 320 are configured in the same side of tabular bearing carrier 12 simultaneously.Certainly, the present invention is not as limit.
Please refer to Fig. 8, contact panel 20 comprises bearing carrier 22, touch control component 24, overlay 26 and colloid 28.Touch control component 24 is configured on bearing carrier 22 and comprises in fact the first electrode tandem 110,210 or 310 and the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth.Respectively do for oneself plate/film material and being bonded together by colloid 28 of bearing carrier 22 and overlay 26, wherein colloid 28 can be that optical cement or other can be by bonding to overlay 26 and bearing carrier 22 and do not affect the sticky material of looking effect of contact panel 20.In the present embodiment, bearing carrier 22 for plastic film overlay 26 be glass, but in other embodiments, bearing carrier 22 can be all glass with overlay 26.Now, touch control component 24 is for example between bearing carrier 22 and overlay 26.When the contact panel 100～300 in above-described embodiment, any one has the cross-section structure design of contact panel 20 of Fig. 8, the first electrode tandem 110,210 or 310 and the second electrode tandem 120,220 or 320 are configured in the same side of tabular bearing carrier 22 simultaneously.
Please refer to Fig. 9, contact panel 30 comprises bearing carrier 32, touch control component 34, overlay 36 and colloid 38.Bearing carrier 32 in this case one plate/film material.Touch control component 34 is configured on bearing carrier 32 and comprises in fact the first electrode layer 34A and the second electrode lay 34B of the relative both sides that are configured in respectively bearing carrier 32.The first electrode layer 34A can comprise the first electrode tandem 110,210 or 310 that in above-described embodiment, any one is set forth, and the second electrode lay 34B can comprise the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth.Or the first electrode layer 34A comprises the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth, and the second electrode lay 34B comprises the first electrode tandem 110,210 or 310 that in above-described embodiment, any one is set forth.That is to say, when when the contact panel 100～300 in above-described embodiment, any one has the cross-section structure design of contact panel 30 of Fig. 9, the first electrode tandem 110,210 or 310 and the second electrode tandem 120,220 or 320 are configured in respectively the relative both sides of tabular bearing carrier 32.In addition, overlay 36 is to have plate/film material of ideal machine intensity and bonding by colloid 38 and bearing carrier 32, and wherein colloid 38 can be that optical cement or other can be by bonding to overlay 36 and bearing carrier 32 and do not affect the jointing material of looking effect of contact panel 30.
Please refer to Figure 10, contact panel 40 comprises bearing carrier 42, touch control component 44 and colloid 46.Bearing carrier 42 comprises a first substrate 42A and a second substrate 42B, and first substrate 42A and second substrate 42B bind by colloid 46.Touch control component 44 is configured on bearing carrier 42 and comprises in fact the first electrode layer 44A and the second electrode lay 44B.The first electrode layer 44A and the second electrode lay 44B can be configured in respectively on first substrate 42A and second substrate 42B.The first electrode layer 44A can comprise the first electrode tandem 110,210 or 310 that in above-described embodiment, any one is set forth, and the second electrode lay 44B can comprise the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth.Or the first electrode layer 44A comprises the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth, and the second electrode lay 44B comprises the first electrode tandem 110,210 or 310 that in above-described embodiment, any one is set forth.That is to say, when when the contact panel 100～300 in above-described embodiment, any one has the cross-section structure design of contact panel 40 of Figure 10, the first electrode tandem 110,210 or 310 and the second electrode tandem 120,220 or 320 are configured between the first substrate 42A and second substrate 42B of bearing carrier 32.Now, second substrate 42B selectively can be greater than the area of first substrate 42A for having the overlay of ideal machine intensity and the area of second substrate 42B.
Please refer to Figure 11, contact panel 50 comprises bearing carrier 52, touch control component 54, colloid 56A and 56B and overlay 58.Bearing carrier 52 includes first substrate 52A and second substrate 52B, and touch control component 54 includes the first electrode layer 54A and the second electrode lay 54B, wherein the first electrode layer 54A and the second electrode lay 54B can be configured in respectively on first substrate 52A and second substrate 52B.First substrate 52A and second substrate 52B are bonded together by colloid 56A, and overlay 58 is bonded on second substrate 52B by colloid 56B.In the present embodiment, the first electrode layer 54A is configured in the vicinity of first substrate 54A in a side of overlay 58, and the second electrode lay 54B is configured in the vicinity of second substrate 54B in a side of overlay 58.Therefore, the first electrode layer 54A is between first substrate 52A and second substrate 52B, and the second electrode lay 54B is no.Particularly, the second electrode lay 54B is between second substrate 52B and overlay 58.The first electrode layer 54A can comprise the first electrode tandem 110,210 or 310 that in above-described embodiment, any one is set forth, and the second electrode lay 54B can comprise the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth.Or the first electrode layer 54A comprises the second electrode tandem 120,220 or 320 that in above-described embodiment, any one is set forth, and the second electrode lay 54B comprises the first electrode tandem 110,210 or 310 that in above-described embodiment, any one is set forth.
Figure 12 is depicted as the schematic diagram of the touch control display apparatus of one embodiment of the invention.Please refer to Figure 12, touch control display apparatus 1 includes contact panel 2 and display panel 3, and wherein contact panel 2 can have in above-mentioned contact panel 10～50 structural design of any one and have in above-mentioned contact panel 100～300 electrode design of any one.And, together with contact panel 2 can be attached to by an adhesive coating 4 with display panel 3.
In sum, in the contact panel of the embodiment of the present invention, electrode pattern has branch's alternative arrangement of multiple branches and electrode.On contact panel, choose arbitrarily unit sensing area time, induction electrode and drive electrode that unit sensing area can be contained in part drive electrode and part induction electrode and unit sensing area have certain area ratio.Thus, the contact panel of the embodiment of the present invention can have desirable touch-control sensing sensitivity and the good signal linearity.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (26)
1. a contact panel, is characterized in that, comprising:
One bearing carrier;
Multiple the first electrode tandems, are carried by this bearing carrier, and respectively this first electrode tandem comprises that multiple the first electrodes and multiple first connect pattern, and those the first connection patterns connect bunchiness by those first electrodes along a first direction; And
Multiple the second electrode tandems, carried by this bearing carrier, respectively this second electrode tandem comprises that multiple the second electrodes and multiple second connect pattern, and those second connect patterns and those second electrodes are connected to bunchiness along a second direction, those second electrodes and those the first electrodes gap that is separated by;
Wherein, in a unit sensing area of choosing arbitrarily on this contact panel, respectively shared this unit sensing area of this first electrode is 1: 1.2～1: 1.4 with the each ratio of shared this unit sensing area of this second electrode.
2. contact panel according to claim 1, is characterized in that, the profile complementation of the profile of those the first electrodes and those the second electrodes.
3. contact panel according to claim 1, is characterized in that, this gap is by 200 microns to 300 microns.
4. contact panel according to claim 1, is characterized in that, also comprises that multiple void puts electrode, between those first electrodes and those the second electrodes.
5. contact panel according to claim 4, is characterized in that, those void are put electrode and in this gap, are arranged in many rows.
6. contact panel according to claim 4, is characterized in that, those void are put distance, those void between electrode and those the first electrodes and put the distance that distance between electrode and those the second electrodes and those void puts between electrode and be not more than 30 microns.
7. contact panel according to claim 1, is characterized in that, this bearing carrier comprises a sheet material or film material.
8. contact panel according to claim 7, is characterized in that, also comprises a decorative layer, is arranged on the neighboring area of this bearing carrier, and those the first electrode tandems and those the second electrode tandems are positioned at the same side of this bearing carrier.
9. contact panel according to claim 1, is characterized in that, this bearing carrier comprises first plate/film material and second plate/film material.
10. contact panel according to claim 9, is characterized in that, this second plate/film material is an overlay.
11. contact panels according to claim 10, is characterized in that, this first plate/film material is a film material, and those the first electrode tandems and those the second electrode tandems, between this overlay and this film material, and are separated by an insulating medium.
12. contact panels according to claim 10, is characterized in that, this first plate/film material is a film material, and those the first electrode tandems and those the second electrode tandems are positioned at the relative both sides of this film material.
13. contact panels according to claim 9, it is characterized in that, also comprise an overlay, wherein those the first electrode tandems are configured on this first plate/film material, those the second electrode tandems are configured on this second plate/film material, this first plate/film material and this second plate/film material sequentially stack arrangement make those the first electrode tandems and those the second electrode tandems wherein one between this first plate/film material and this second plate/film material, another one is no, and this overlay is bonded on this first plate/film material and this second plate/film material.
14. contact panels according to claim 1, it is characterized in that, respectively this first electrode has one first master pattern and multiple first sub pattern that is connected in this first master pattern of mainly extending along this first direction, respectively this second electrode has one second master pattern and multiple second sub pattern that is connected in this second master pattern of extending along this second direction, and those first sub pattern and those the second sub pattern alternative arrangements.
15. contact panels according to claim 14, is characterized in that, respectively those first sub pattern of this first electrode are stretched out by this first master pattern, and the bearing of trend of those the first sub pattern is not parallel to this first direction.
16. contact panels according to claim 15, is characterized in that, the bearing of trend of those the first sub pattern is parallel to this second direction.
17. contact panels according to claim 15, is characterized in that, one of them person of those first sub pattern is pointed to the center of one of them adjacent the second electrode by the outward extending bearing of trend of this first master pattern.
18. contact panels according to claim 15, is characterized in that, one of them person of those first sub pattern is the center that is first parallel to this second direction and points to one of them adjacent the second electrode by the outward extending bearing of trend of this first master pattern.
19. contact panels according to claim 15, is characterized in that, those first sub pattern have different pattern widths.
20. contact panels according to claim 1, is characterized in that, respectively this first electrode has respectively symmetrical profile with each this second electrode.
21. contact panels according to claim 14, it is characterized in that, respectively respectively this second sub pattern of this second electrode comprises a main split and multiple sub-branch, those sub-branches are connected in this main split, this main split is stretched out by this second master pattern, and the bearing of trend of this main split is not parallel to this second direction.
22. contact panels according to claim 21, is characterized in that, Ge Gai sub-branch is the center that is first parallel to this second direction and points to one of them adjacent the first electrode by the outward extending bearing of trend of this main split.
23. contact panels according to claim 21, is characterized in that, Ge Gai sub-branch is to be parallel to this second direction by the outward extending bearing of trend of this main split.
24. contact panels according to claim 21, is characterized in that, Ge Gai sub-branch is that the center of first pointing to one of them adjacent the first electrode is parallel to this second direction again by the outward extending bearing of trend of this main split.
25. contact panels according to claim 21, is characterized in that, the width of this main split is greater than the width of those sub-branches.
26. contact panels according to claim 1, is characterized in that, the length of this unit sensing area and the wide pitch size of those the first electrodes on this first direction and the pitch size in this second direction of equaling respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310136536.1A CN104111759B (en) | 2013-04-18 | 2013-04-18 | Contact panel |
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| CN201310136536.1A CN104111759B (en) | 2013-04-18 | 2013-04-18 | Contact panel |
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| CN104111759B CN104111759B (en) | 2017-07-04 |
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| CN108073335A (en) * | 2017-12-15 | 2018-05-25 | 友达光电股份有限公司 | Touch panel |
| CN109375802A (en) * | 2018-09-29 | 2019-02-22 | 武汉天马微电子有限公司 | A kind of touch-control display panel and device |
| CN111596805A (en) * | 2020-07-27 | 2020-08-28 | 武汉华星光电半导体显示技术有限公司 | Touch control display device |
| US11592947B2 (en) | 2020-06-30 | 2023-02-28 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch structure and touch display panel |
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| CN104111759B (en) | 2017-07-04 |
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