CN103294291B - Trackpad - Google Patents
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- CN103294291B CN103294291B CN201210056239.1A CN201210056239A CN103294291B CN 103294291 B CN103294291 B CN 103294291B CN 201210056239 A CN201210056239 A CN 201210056239A CN 103294291 B CN103294291 B CN 103294291B
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Abstract
The invention discloses a kind of Trackpad and include a substrate, a touch-control sensing electrode and an optical compensating layer.Touch-control sensing electrode is arranged in substrate.Optical compensating layer is arranged in substrate, and optical compensating layer covers touch-control sensing electrode.The refractive index of optical compensating layer is less than or equal to the refractive index of touch-control sensing electrode.
Description
Technical field
The present invention relates to a kind of Trackpad, has optical compensating layer in order to improve touching of presentation quality particularly to a kind of
Control plate.
Background technology
In recent years, along with touch technology constantly develops, many consumption electronic products such as mobile phone (mobile
Phone), tablet PC (tablet PC), Position Fixing Navigation System (GPS navigator system), notebook
(laptop PC) and desktop PC (desktop PC) etc. all have the product being combined with touch controllable function to come out.Touch at present
The technology of control plate more typically includes resistance-type, condenser type and optical profile type etc..Wherein capacitive touch control plate is by having Gao Zhun
The features such as true rate, multi-point touch, high durability and high touch-control resolution, in being increasingly becoming at present, high-order consumer electronics produces
The main flow touch technology that product use.
The operating principle of capacitive touch control plate is to use transparent induction electrode to detect the capacitance variations of touch point position and sharp
Signal is passed back calculate with linking the connecting line of each transparent induction electrode on different directions axle and complete location.Known
Capacitive touch control plate in, transparent induction electrode be utilize transparent conductive material such as tin indium oxide (indium tin oxide,
ITO) formed, and indium tin oxide material itself is belonged to high index of refraction (the most about 1.7 to 2.0) and material absorbent to light
Material, the region with or without transparent induction electrode easily produces visual color distortion the most on the touch pad, and causes transparent feel
The problem answering electrode pattern significant degree, has influence on the presentation quality of Trackpad.Additionally, in large-sized Trackpad, owing to needing
Increase the thickness of transparent induction electrode in order to reduce impedance further to meet the driving demand of large touch plate, therefore can make
Transparent feel answers the problem worse of electrode pattern significant degree.For example, when general Trackpad size is more than 7 constantly, in order to drop
The impedance of low transparent induction electrode, it is possible to need to increase the thickness of transparent induction electrode, and make transparent feel answer electrode pattern
The problem worse of significant degree.In known capacitive touch control plate, it is usually and covers transparent feel with silica or organic photoresistance
Answer electrode, owing to the refractive index of this type of material is relatively big (the most about about 1.5) with the refractive index difference of tin indium oxide, therefore only can use
Form protection or the function of insulation, and the problem that transparent feel answers electrode pattern significant degree cannot be improved.
Summary of the invention
The main object of the present invention is providing a kind of Trackpad, utilizes and arranges an optical compensating layer, by optical interference
Mode makes have the reflection differences between the region of transparent induction electrode and the region not having transparent induction electrode in Trackpad
Different and colourity difference reduces, and improves Trackpad transparent feel and answers the problem of electrode pattern significant degree and improve the penetration of Trackpad.
The present invention provides a kind of Trackpad, including a substrate, a touch-control sensing electrode and an optical compensating layer.Touch-control sense
Survey electrode to be arranged in substrate.Optical compensating layer is arranged in substrate, and optical compensating layer covers touch-control sensing electrode.Optics is mended
The refractive index repaying layer is less than or equal to the refractive index of touch-control sensing electrode.
Accompanying drawing explanation
Fig. 1 Yu Fig. 2 show the schematic diagram of the Trackpad of first preferred embodiment of the invention.
Fig. 3 show the schematic side view of the Trackpad of second preferred embodiment of the invention.
Fig. 4 show the schematic side view of the Trackpad of third preferred embodiment of the invention.
Fig. 5 show the schematic side view of the Trackpad of four preferred embodiment of the invention.
Fig. 6 Yu Fig. 7 show the schematic diagram of the Trackpad of fifth preferred embodiment of the invention.
Fig. 8 show the schematic side view of the Trackpad of sixth preferred embodiment of the invention.
Wherein, description of reference numerals is as follows:
101 Trackpad 102 Trackpads
110 substrate 111 first surfaces
112 second surface 120 touch-control sensing electrodes
121 first axial induction electrode 122 second axial induction electrodes
130 insulating barrier 141 first connecting lines
142 second connecting line 151 optical compensating layers
160 patch material layer 170 outer cover substrate
201 Trackpad 202 Trackpads
210 substrate 211 first surfaces
212 second surface 220 touch-control sensing electrodes
221 first axial induction electrode 222 second axial induction electrodes
250 optical compensating layer 251 first optical compensating layers
252 second optical compensating layer 261 patch material layers
262 patch material layer 270 outer cover substrate
280 diaphragm 301 Trackpads
302 Trackpad 310 substrates
311 first surface 312 second surfaces
380 diaphragm 390 decorative layers
391 wire T1 thickness
T2 thickness T3 thickness
T4 thickness T5 thickness
T6 thickness
Detailed description of the invention
This specification employs some vocabulary to censure specific element.One of skill in the art Ying Keli
Solving, producer may call same element with different nouns.This specification is not used as district with the difference of title
The mode of other element, but the benchmark of difference it is used as with element difference functionally." including " in entire description
It is an open term, therefore " include but be not limited to " should be construed to.Furthermore, for making the technology of the technical field of the invention
Personnel can further appreciate that the present invention, the hereafter special several preferred embodiments enumerating the present invention, and coordinates accompanying drawing, describes this in detail
The constitution content of invention.Should be noted accompanying drawing only for illustrating, and not according to life size map.Additionally, make use-case in the text
As " first " with " second " etc. narration, only in order to distinguish different elements, the not restriction to its generation order.
Refer to Fig. 1 and Fig. 2.Fig. 1 Yu Fig. 2 show the schematic diagram of the Trackpad of first preferred embodiment of the invention.Its
Middle Fig. 1 is upper schematic diagram, and Fig. 2 is along the cross-sectional schematic shown in the hatching line A-A ' of Fig. 1.For convenience of explanation, the present invention
Each accompanying drawing be only signal in order to be readily understood by the present invention, its detailed ratio can according to design demand be adjusted.Such as Fig. 1
Shown in Fig. 2, the Trackpad 101 of the present embodiment includes substrate 110, touch-control sensing electrode 120 and an optical compensating layer
151.Touch-control sensing electrode 120 is provided in substrate 110, it is manifestly that, the touch-control sensing electrode 120 of the present embodiment includes setting
Put the multiple first axial induction electrodes 121 on the same surface of substrate 110 and multiple second axial induction electrodes 122, also
That is the first axial induction electrode 121 and the second axial induction electrode 122 are all provided in a first surface of substrate 110
On 111.In the present embodiment, the first axial induction electrode 121 and the second axial induction electrode 122 can use transparent conductive material
Such as tin indium oxide (indium tin oxide, ITO), indium zinc oxide (indium zinc oxide, IZO) or aluminum zinc oxide
(aluminum zinc oxide, AZO) is formed, but is not limited thereto.Additionally, the touch-control sensing electrode 120 of the present invention can
For single layered transparent electrode structure, it is not limited to aforementioned the first included axial induction electrode 121 and the second axial induction electricity
The multi-layer transparent electrode structure of pole 122, and the shape of induction electrode of the present invention can be the geometries such as rhombus, triangle, straight line
Or it is irregularly shaped.Optical compensating layer 151 is arranged in substrate 110, and optical compensating layer 151 covers touch-control sensing electrode 120,
It is to say, optical compensating layer 151 covers the first axial induction electrode 121 and the second axial induction electrode 122.Optical compensating layer
The refractive index of 151 is less than or equal to the refractive index of touch-control sensing electrode 120, say, that the refractive index of optical compensating layer 151
It is less than or equal to the refractive index of the first axial induction electrode 121 and the refractive index of the second axial induction electrode 122.Additionally, light
Learn layer of compensation 151 and can include organic material such as pi (polyimide, PI) and acrylic resin (acrylic
Resin), inorganic material such as titanium oxide (titanium oxide), the single layer structure of above-mentioned material or lamination layer structure, but this
Invention is not limited thereto and can optionally adjust optical compensating layer 151 in order to reach required refractive index.The light of the present embodiment
Learn layer of compensation 151 and can deposit (chemical vapor deposition, CVD) or wet type with dry type plated film such as chemical gaseous phase
The modes such as plated film such as rotary coating (spin on) are formed, but are not limited thereto.
Further illustrating, the refractive index of the touch-control sensing electrode 120 of the present embodiment is generally to be situated between 1.7 to 2.0,
It is to say, the refractive index of the first axial induction electrode 121 and the second axial induction electrode 122 is generally to be situated between 1.7 to 2.0
Between, and the refractive index of optical compensating layer 151 is to be situated between 1.6 to 1.7.In the present embodiment, the first axial induction electrode
One thickness of 121 is generally identical with a thickness of the second axial induction electrode 122, but is not limited thereto.Additionally, touch-control
The thickness of sensing electrode 120 is to be situated between 18 nanometers to 150 nanometers, say, that the one of the first axial induction electrode 121 is thick
One thickness of degree and the second axial induction electrode 122 is to be situated between 18 nanometers to 150 nanometers.The thickness of optical compensating layer is to be situated between
Between 60 nanometers to 150 nanometers, furtherly, optical compensating layer 151 covers the thickness on the first axial induction electrode 121
Degree and the thickness covered on the second axial induction electrode 122 are to be situated between 60 nanometers to 150 nanometers.By above-mentioned thickness
Preferably optical effect is can reach under degree scope and ranges of indices of refraction collocation.For example, refer to lower list 1, and ask one
And with reference to Fig. 2.Data listed by table 1 be the refractive index of optical compensating layer 151 used when being 1.65 to or without arranging the first axle
To induction electrode 121 or the interregional difference in reflectivity of the second axial induction electrode 122, colour difference (delta E) and touch
The improvement effect of the penetrance that control plate is overall, and compare the situation covering induction electrode in generally known technology with silicon dioxide layer
Under presence or absence the penetrance situation that the interregional difference in reflectivity of induction electrode, colour difference and Trackpad are overall is set, its
Middle thickness T1 is the thickness of the first axial induction electrode 121.
Table 1
As shown in table 1, when the optical compensating layer 151 using refractive index to be 1.65, with or without arranging first in Trackpad 101
The interregional difference in reflectivity of axial induction electrode 121 or the second axial induction electrode 122 and colour difference can obtain significantly
Improve, say, that the setting of optical compensating layer 151 can be effectively improved the problem of induction electrode pattern significant degree in Trackpad.This
Outward, the penetration of Trackpad also obtains improvement because using the optical compensating layer 151 generally known silicon dioxide layer of replacement.
Refer to lower list 2, and please also refer to Fig. 2.Data listed by table 2 are to make apparatus in different enforcement patterns
There is the optical compensating layer 151 of different refractivity and different-thickness to or without arranging the first axial induction electrode 121 or the second axle
Improvement effect to the interregional difference in reflectivity of induction electrode 122 Yu colour difference.
Table 2
Wherein thickness T1 is the thickness of the first axial induction electrode 121, and thickness T2 is that optical compensating layer 151 covers first
Thickness on axial induction electrode 121, and the refractive index that refractive index N is optical compensating layer 151.As shown in table 2, when using refraction
When rate is the optical compensating layer of 1.7 or optical compensating layer that refractive index is 1.65, Trackpad 101 is axially felt with or without arranging first
The interregional difference in reflectivity answering electrode 121 or the second axial induction electrode 122 all can obtain improvement with colour difference.Additionally,
It is to be situated between 60 nanometers to 150 nanometers that optical compensating layer 151 covers the thickness T2 on the first axial induction electrode 121, but
The present embodiment is not limited thereto and visual and the first axial induction electrode 121 or refractive index of the second axial induction electrode 122
The thickness of optical compensating layer 151 is adjusted by situation with thickness collocation situation, such as, can use as implemented pattern 1 in table 2
The optical compensating layer that refractive index is 1.7 and thickness is 1200 nanometers that has difference in reflectivity is improved with colour difference.
As shown in Figures 1 and 2, the Trackpad 101 of the present embodiment can also include that one first connecting line 141,1 second connects
Line 142 and an insulating barrier 130 are arranged in substrate 110.First connecting line 141 is that to electrically connect adjacent two first axial
Induction electrode 121, and the second connecting line 142 is to electrically connect two second adjacent axial induction electrodes 122.Insulating barrier 130
It is provided between the first connecting line 141 and the second connecting line 142, is connected with second in order to electrically isolate the first connecting line 141
Line 142.In the present embodiment, the first connecting line 141 and the second connecting line 142 can include transparent conductive material such as indium oxide
Tin, indium zinc oxide and aluminum zinc oxide or other nontransparent conductive material such as silver, aluminium being suitable for, copper, magnesium, molybdenum, above-mentioned material
Composite bed or the alloy of above-mentioned material, but be not limited thereto.Insulating barrier 130 can include inorganic material such as silicon nitride
(silicon nitride), silica (silicon oxide) and silicon oxynitride (silicon oxynitride), You Jicai
Expect such as acrylic resin (acrylic resin) or other insulating materials being suitable for.Additionally, in the present embodiment, it is possible to
Between substrate 110 and the first axial electrode 121/ second axial electrode 122, a dielectric film (not shown) is optionally set, with
And in substrate 110 relative to optionally arranging an electrically conducting transparent shielding layer (figure on a second surface 112 of first surface 111
Do not show) and a dielectric film (not shown), in order to improve the touch control operation situation of Trackpad 101, but it is not limited thereto.At this
In other embodiments of invention, the second connecting line 142 can be with the first axial induction electrode 121 and the second axial induction electrode
122 utilize same technique to be formed, say, that the second tie line 142 can be with adjacent two second axial induction electrode 122 one
Shape, but the present invention is not limited thereto.
Different embodiments below for the Trackpad of the present invention illustrate, and for simplifying explanation, following description master
To be described in detail for the place that each embodiment is different, and no longer identical place is repeated.Additionally, the present invention's is each
Element identical in embodiment is to indicate with identical label, checks one against another between each embodiment in order to convenient.
Refer to Fig. 3.Fig. 3 show the schematic side view of the Trackpad of second preferred embodiment of the invention.Such as Fig. 3 institute
Showing, compared with above-mentioned first preferred embodiment, the Trackpad 102 of the present embodiment also includes patch material layer 160 and an enclosing cover
Substrate 170 is arranged in substrate 110.In the present embodiment, patch material layer 160 is provided on optical compensating layer 151, and outward
Lid substrate 170 is provided on patch material layer 151, say, that patch material layer 160 be provided in outer cover substrate 170 with
Between optical compensating layer 151, in order to bond outer cover substrate 170 and optical compensating layer 151.In other words, optical compensating layer 151 is
It is arranged between substrate 110 and patch material layer 160, and optical compensating layer 151 is provided in substrate 110 and outer cover substrate 170
Between.The patch material layer 160 of the present embodiment can include heat-curable glue, ultraviolet curing glue (UV adhesive), liquid optics
Glue (optical clear adhesive, OCA) or pressure sensitive adhesive (pressure sensitive adhesive, PSA), but also
It is not limited.Outer cover substrate 170 can include a cover plate (cover lens) or a cover plate (cover glass), in order to
Each element in protection Trackpad 102, but be not limited thereto.The Trackpad 102 of the present embodiment except patch material layer 160 with
Outside one outer cover substrate 170, the feature of remaining each parts, material behavior and each layer thickness and the Matching Relation of refractive index are with upper
State the Trackpad 101 in the first preferred embodiment similar, therefore at this and repeat no more.What deserves to be explained is, in the present embodiment,
The refractive index of outer cover substrate 170 is less than the refractive index of optical compensating layer 151, and the refractive index of patch material layer 160 is less than
The refractive index of optical compensating layer 151, in order to reach preferably optical effect.Specifically, when refractive index N represents optical compensating layer
The refractive index of 151, refractive index N1 represents the refractive index of the first axial induction electrode 121, and refractive index N2 represents patch material layer 160
Refractive index, and when refractive index N3 represents the refractive index of outer cover substrate 170, the relation between each refractive index refers to following pass
It it is formula (1).
N2≤N3 ＜ N≤N1 (1)
In order to improve the problem of induction electrode pattern significant degree in Trackpad, refer to relational expression (1) and select each layer material
Material is arranged in pairs or groups, but is not limited thereto.Additionally, the touching of the Trackpad 102 of the present embodiment and above-mentioned first preferred embodiment
Control plate 101 can be considered the structure of a kind of one side ITO (single ITO, SITO) Trackpad.
Refer to Fig. 4.Fig. 4 show the schematic side view of the Trackpad of third preferred embodiment of the invention.Such as Fig. 4 institute
Showing, the Trackpad 201 of the present embodiment includes substrate 210, touch-control sensing electrode 220 and an optical compensating layer 250.With
The place that the Trackpad 101 of above-mentioned first preferred embodiment is different is, the touch-control sensing electrode 220 of the present embodiment includes one
One axial induction electrode 221 and one second axial induction electrode 222 are separately positioned on two contrary surfaces of substrate 210,
Wherein the first axial induction electrode 221 and the second axial induction electrode 222 are flagpole pattern.Further illustrating, first is axial
Induction electrode 221 is provided on a first surface 211 of substrate 210, and the second axial induction electrode 222 is provided in substrate
On one second surface 212 of 210.Additionally, optical compensating layer 250 includes one first optical compensating layer 251 and one second optics
Layer of compensation 252.First optical compensating layer 251 is provided on the first surface 211 of substrate 210 and covers the first axial induction electricity
Pole 221, and the second optical compensating layer 252 is provided on the second surface 212 of substrate 210 and covers the second axial induction electrode
222.In the present embodiment, the refractive index of optical compensating layer 250 is less than or equal to the refractive index of touch-control sensing electrode 220, also
That is, a refractive index of the first optical compensating layer 251 is less than or equal to a refractive index of the first axial induction electrode 221,
And second a refractive index of optical compensating layer 252 be less than or equal to a refractive index of the second axial induction electrode 222.Citing comes
Saying, the refractive index of the first axial induction electrode 221 is to be situated between 1.7 to 2.0, the refractive index of the second axial induction electrode 222
Being to be situated between 1.7 to 2.0, the refractive index of the first optical compensating layer 251 is to be situated between 1.6 to 1.7, and the second optical compensation
The refractive index of layer 252 is to be situated between 1.6 to 1.7.Additionally, the refractive index of the first axial induction electrode 221 generally can be equal to
The refractive index of the second axial induction electrode 221, the refractive index of the first optical compensating layer 251 generally can wait at the second optical compensation
The refractive index of layer 252, but the present invention is not limited thereto and visually designs and need to use refractive index unequal first axially to feel
Answer electrode 221 and the second axial induction electrode 221, and need to use unequal first optical compensating layer of refractive index depending on design
251 and second optical compensating layer 252.What deserves to be explained is, a thickness T3 of the first axial induction electrode 221 of the present embodiment with
One thickness T4 of the second axial induction electrode 222 is to be situated between 18 nanometers to 150 nanometers, and the first optical compensating layer 251 covers
Cover the thickness T5 on the first axial induction electrode 221 and the second optical compensating layer 252 covers at the second axial induction electrode
A thickness T6 on 222 is to be situated between 60 nanometers to 150 nanometers, but is not limited thereto.Additionally, the first axial induction electrode
Thickness T3 and first optical compensating layer 251 of 221 cover the Matching Relation between the thickness T5 on the first axial induction electrode 221
And second axial induction electrode 222 thickness T4 and the 2nd 252 optical compensating layer cover on the second axial induction electrode 222
Thickness T6 between Matching Relation similar to above-mentioned first preferred embodiment, at this and repeat no more.Additionally, the of the present embodiment
One optical compensating layer 251 and the second optical compensating layer 252 can include organic material such as pi and acrylic resin, nothing
The single layer structure of machine material such as titanium oxide, above-mentioned material or lamination layer structure, and the first optical compensating layer 251 and the second optics
Layer of compensation 252 can be formed in modes such as dry type plated film such as chemical gaseous phase deposition or wet type plated film such as rotary coatings, but not
As limit.In other words, the material of the second optical compensating layer 252 and thickness can identical with the first optical compensating layer 251 or
Visual design needs the first optical compensating layer 251 and the second optical compensating layer 252 using material different from thickness.The present embodiment
Trackpad 201 except the first axial induction electrode 221 and the second axial induction electrode 221, position and second axial is set
Outside induction electrode 222, the feature of remaining each parts, material behavior and each layer thickness and the Matching Relation of refractive index are with above-mentioned
Trackpad 101 in first preferred embodiment is similar, therefore at this and repeat no more.Additionally, in the present embodiment, it is possible in substrate
210 and first respectively selectively arrange one between axial electrode 221 and between substrate 210 and the second axial electrode 222
Dielectric film (not shown), in order to improve the touch control operation situation of Trackpad 201, but is not limited thereto.
Refer to Fig. 5.Fig. 5 show the schematic side view of the Trackpad of four preferred embodiment of the invention.Such as Fig. 5 institute
Showing, compared with above-mentioned third preferred embodiment, the Trackpad 202 of the present embodiment also includes a two patch material layer (patch material
Layer 261 and a patch material layer 262), outer cover substrate 270 and a diaphragm 280.Two patch material layers are to be separately positioned on
On first optical compensating layer 251 and the second optical compensating layer 252, and outer cover substrate 270 and diaphragm 280 are to be respectively provided with
On two patch material layers.In other words, patch material layer 261 and outer cover substrate 270 are provided in the first surface of substrate 210
On 211, and patch material layer 262 and diaphragm 280 are provided on the second surface 212 of substrate 210.Patch material layer 261
To bond outer cover substrate 270 and the first optical compensating layer 251, and patch material layer 262 be bond diaphragm 280 with
Second optical compensating layer 252.In the present embodiment, the folding of two patch material layers (patch material layer 261 and patch material layer 262)
The rate of penetrating is less than the refractive index of optical compensating layer 250, say, that a refractive index of patch material layer 261 is less than the first light
Learn the refractive index of layer of compensation 251, and a refractive index of outer cover substrate 270 is less than the refractive index of the first optical compensating layer 251.Patch
Enclosure material layer 261 and patch material layer 262 can include heat-curable glue, ultraviolet curing glue, liquid optical cement or pressure sensitive adhesive, but also
It is not limited.The diaphragm 280 of the present embodiment can include plastic cement such as polyethylene terephthalate (polyethylene
Terephthalate, PET), Poly-s 179 (polyethersulfone, PES), pi, Merlon
(polycarbonate, PC), PEN (polyethylene naphthalate, PEN) and poly-methyl-prop
E pioic acid methyl ester (polymethyl methacrylate, PMMA), glass or form organic merit with above-mentioned various types of materials again on surface
Energy property plated film or the diaphragm of inorganic functional plated film, but be not limited thereto.The Trackpad 202 of the present embodiment is except attaching material
Outside the bed of material 261, patch material layer 262, outer cover substrate 270 and diaphragm 280, the feature of remaining each parts, material behavior
And each layer thickness close with the collocation of refractive index be respectively with the Trackpad 201 in above-mentioned third preferred embodiment and above-mentioned the
Trackpad 102 in two preferred embodiments is similar, therefore at this and repeat no more.What deserves to be explained is, due to touching of the present embodiment
First axial induction electrode 221 of the Trackpad 201 of control plate 202 and above-mentioned third preferred embodiment and the second axial induction electricity
Pole 221 is provided on the different surfaces of substrate 210, therefore Trackpad 201 and Trackpad 202 can be considered a kind of two-sided ITO
The structure of (double ITO, DITO) Trackpad.
Refer to Fig. 6 and Fig. 7.Fig. 6 Yu Fig. 7 depicts the schematic diagram of the Trackpad of fifth preferred embodiment of the invention.Its
Middle Fig. 6 is upper schematic diagram, and Fig. 7 is along the cross-sectional schematic depicted in the hatching line B-B ' of Fig. 6.As shown in Figures 6 and 7, with
The place that the Trackpad 101 of above-mentioned first preferred embodiment is different is, in the Trackpad 301 of the present embodiment, first is axial
Induction electrode the 121, second axial induction electrode, first connecting line the 141, second connecting line 142, insulating barrier 130 and optics are mended
Repay layer 151 to be all provided on a second surface 312 of substrate 310, and substrate 310 is relative to the one first of second surface 312
Surface 311 then can be considered a touch surface, but is not limited thereto.Additionally, the Trackpad 301 of the present embodiment also includes a decorative layer
390 and a wire 391.Decorative layer 390 is provided in the edge of substrate 310, and decorative layer 190 can include pottery, diamond-like
Stone carbon (diamond-like carbon), color ink, photoresistance or resin, but be not limited thereto.Wire 391 is provided in
The edge of substrate 310, and wire 391 and touch-control sensing electrode 220 form and electrically connect, in order to make the touching signals can be via wire
391 are delivered to touch-control sensing electrode 220, and decorative layer 391 may be used to cover wire 391, but are not limited with this function.This reality
Execute the Trackpad 301 of example in addition to substrate 310, decorative layer 390 and wire 391, the feature of remaining each parts, material behavior
And each layer thickness is similar to the Trackpad 101 in above-mentioned first preferred embodiment to the Matching Relation of refractive index, therefore at this also
Repeat no more.What deserves to be explained is, the material of the substrate 310 of the present embodiment does not limit, such as, can be substrate of glass or plastic cement
Substrate, can be preferably a cover plate or a cover plate, compare the structure of the Trackpad 101 of the first more above-mentioned preferred embodiment,
In the Trackpad 301 of the present embodiment, owing to substrate 310 itself can be a cover plate or a cover plate and without additionally setting again
Put cover plate, therefore relatively can help the effect that integral thickness thinning simplifies with manufacture method.Additionally, in the present embodiment, substrate 310 with
One dielectric film (not shown) is the most optionally set between the first axial electrode 121, grasps in order to improve the touch-control of Trackpad 301
Make situation, but be not limited thereto.
Refer to Fig. 8.Fig. 8 show the schematic side view of the Trackpad of sixth preferred embodiment of the invention.Such as Fig. 8 institute
Showing, compared with above-mentioned 5th preferred embodiment, the Trackpad 302 of the present embodiment also includes patch material layer 160 and a protection
Film 380 is arranged on the second surface 312 of substrate 310.Patch material layer 160 is provided on optical compensating layer 151, and protection
Film 380 is provided on patch material layer 160, say, that patch material layer 160 is provided in optical compensating layer 151 and protects
Between cuticula 380, in order to bond optical compensating layer 151 and diaphragm 380.The diaphragm 380 of the present embodiment can include plastic cement example
Such as polyethylene terephthalate, Poly-s 179, pi, Merlon, PEN and poly-methyl
Methyl acrylate, glass or form organofunctional plated film or the guarantor of inorganic functional plated film with above-mentioned various types of materials again on surface
Cuticula, but be not limited thereto.The patch material layer 160 of the present embodiment can include heat-curable glue, ultraviolet curing glue, liquid light
Learn glue or pressure sensitive adhesive, but be not limited thereto.What deserves to be explained is, in the present embodiment, the refractive index of patch material layer 160 is
Less than the refractive index of optical compensating layer 151, in order to reach preferably optical effect.The Trackpad 302 of the present embodiment is except attaching
Outside material layer 160 and diaphragm 380, the feature of remaining each parts, material behavior and each layer thickness and the collocation of refractive index
Relation is similar to the Trackpad 301 in above-mentioned 5th preferred embodiment, therefore at this and repeat no more.
Comprehensive the above, the Trackpad of the present invention is to utilize to arrange at least one optical compensating layer, and adjusts its refractive index
Arrange in pairs or groups with induction electrode with thickness situation so that the induction electrode pattern significant degree caused because increasing induction electrode thickness
Problem obtains to be improved, and increases the overall penetration of Trackpad simultaneously so that the presentation quality of Trackpad obtains and improves.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. a Trackpad, it is characterised in that including:
One substrate；
One touch-control sensing electrode, is arranged on this substrate；And
One optical compensating layer, arranges on this substrate, and this optical compensating layer covers this touch-control sensing electrode；
Wherein the refractive index of this optical compensating layer is less than or equal to the refractive index of this touch-control sensing electrode, this touch-control sensing electrode
Including at least one first axial induction electrode on the same surface being arranged on this substrate and at least one second axial induction electricity
Pole, the refractive index of this first axial induction electrode and this second axial induction electrode is between 1.7 to 2.0, and this light
The refractive index learning layer of compensation is between 1.6 to 1.65, and the thickness of this touch-control sensing electrode is to receive to 150 between 110 nanometers
Between meter, and the thickness of this optical compensating layer is between 80 nanometers to 150 nanometers.
2. Trackpad as claimed in claim 1, it is characterised in that this substrate includes a cover plate or a cover plate.
3. Trackpad as claimed in claim 2, it is characterised in that also include a decorative layer, be arranged on the edge of this substrate, and
This decorative layer includes pottery, diamond-like-carbon, color ink, photoresistance or resin.
4. Trackpad as claimed in claim 1, it is characterised in that also include a patch material layer and an outer cover substrate, its
In this patch material layer be arranged on this optical compensating layer, this outer cover substrate is arranged on this patch material layer, and this attaching material
The refractive index of the bed of material is less than the refractive index of this optical compensating layer.
5. Trackpad as claimed in claim 3, it is characterised in that also include a patch material layer and a diaphragm, this patch
Enclosure material layer is arranged on this optical compensating layer, and this diaphragm is arranged on this patch material layer, wherein this patch material layer
Refractive index be less than the refractive index of this optical compensating layer.
6. the Trackpad as described in claim 4 or 5, it is characterised in that this patch material layer includes ultraviolet curing glue, thermosetting
Change glue, liquid optical cement or pressure sensitive adhesive.
7. a Trackpad, it is characterised in that including:
One substrate；
One touch-control sensing electrode, is arranged on this substrate；And
One optical compensating layer, arranges on this substrate, and this optical compensating layer covers this touch-control sensing electrode；
Wherein the refractive index of this optical compensating layer is less than or equal to the refractive index of this touch-control sensing electrode, this touch-control sensing electrode
Contrary with two that at least one second axial induction electrode is separately positioned on this substrate including at least one first axial induction electrode
On surface, it is first axial that this optical compensating layer includes that one first optical compensating layer and one second optical compensating layer are covered each by this
Induction electrode and this second axial induction electrode, this first axial induction electrode and the refractive index of this second axial induction electrode
It is between 1.7 to 2.0, and the refractive index of this first optical compensating layer and this second optical compensating layer is to arrive between 1.6
Between 1.65, the thickness of this touch-control sensing electrode is between 110 nanometers to 150 nanometers, and the thickness of this optical compensating layer
It is between 80 nanometers to 150 nanometers.
8. Trackpad as claimed in claim 7, it is characterised in that also include two patch material layers, an outer cover substrate and
Diaphragm, wherein this two patch materials layer is separately positioned on this first optical compensating layer and this second optical compensating layer, should
Outer cover substrate and this diaphragm are separately positioned on this two patch materials layer, and the refractive index of this two patch materials layer is less than
The refractive index of this optical compensating layer.
9. Trackpad as claimed in claim 8, it is characterised in that this patch material layer includes ultraviolet curing glue, heat cure
Glue, liquid optical cement or pressure sensitive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056239.1A CN103294291B (en) | 2012-03-05 | 2012-03-05 | Trackpad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056239.1A CN103294291B (en) | 2012-03-05 | 2012-03-05 | Trackpad |
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| CN103294291B true CN103294291B (en) | 2016-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10816858B2 (en) | 2018-10-29 | 2020-10-27 | Liqxtal Technology Inc. | Electrically tunable phase modulation element |
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|---|---|---|---|---|
| CN103677411A (en) * | 2013-12-06 | 2014-03-26 | 京东方科技集团股份有限公司 | Touch display device and manufacture method thereof |
| CN104731397A (en) * | 2013-12-19 | 2015-06-24 | 胜华科技股份有限公司 | Touch panel and touch display device |
| TW201602879A (en) * | 2014-07-04 | 2016-01-16 | 勝華科技股份有限公司 | Touch panel |
| CN105807964B (en) * | 2014-12-29 | 2019-11-05 | 南昌欧菲光学技术有限公司 | Black frame touch panel |
| CN106033284B (en) * | 2015-03-20 | 2019-05-17 | 南昌欧菲光学技术有限公司 | Display screen, terminal and display screen production method |
| CN106371684A (en) * | 2016-09-20 | 2017-02-01 | 京东方科技集团股份有限公司 | Touch display device, touch display panel and manufacturing method thereof |
| CN107121805B (en) * | 2017-04-07 | 2021-12-21 | 昆山龙腾光电股份有限公司 | Touch display panel and manufacturing method thereof |
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| CN101078820A (en) * | 2006-05-23 | 2007-11-28 | 宸鸿光电科技股份有限公司 | Processing method for making transparent electrodes on transparent substrates invisible |
| CN101120304A (en) * | 2005-05-26 | 2008-02-06 | 郡是株式会社 | Transparent planar body and transparent contact switch |
| CN101615099A (en) * | 2008-06-26 | 2009-12-30 | 胜华科技股份有限公司 | Capacitive touch control structure |
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| US8068186B2 (en) * | 2003-10-15 | 2011-11-29 | 3M Innovative Properties Company | Patterned conductor touch screen having improved optics |
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| CN101120304A (en) * | 2005-05-26 | 2008-02-06 | 郡是株式会社 | Transparent planar body and transparent contact switch |
| CN101078820A (en) * | 2006-05-23 | 2007-11-28 | 宸鸿光电科技股份有限公司 | Processing method for making transparent electrodes on transparent substrates invisible |
| CN101615099A (en) * | 2008-06-26 | 2009-12-30 | 胜华科技股份有限公司 | Capacitive touch control structure |
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| US10816858B2 (en) | 2018-10-29 | 2020-10-27 | Liqxtal Technology Inc. | Electrically tunable phase modulation element |
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Owner name: TPK TOUCH SOLUTIONS (XIAMEN) INC. Free format text: FORMER OWNER: LIANSHENG (CHINA) TECHNOLOGY CO., LTD. Effective date: 20141210 Free format text: FORMER OWNER: SHENGHUA SCIENCE AND TECHNOLOGY CO LTD Effective date: 20141210 |
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Effective date of registration: 20141210 Address after: 361009, No. 199, Sakamoto Road, information photoelectric Park, torch hi tech Zone, Fujian, Xiamen Applicant after: TPK Touch Solutions (Xiamen) Inc. Address before: 523808, No. two, Kaohsiung Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan Applicant before: Liansheng (China) Technology Co.,Ltd. Applicant before: Shenghua Science and Technology Co., Ltd. |
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