CN101477421B - Touch control panel structure - Google Patents

Touch control panel structure Download PDF

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Publication number
CN101477421B
CN101477421B CN2009100048758A CN200910004875A CN101477421B CN 101477421 B CN101477421 B CN 101477421B CN 2009100048758 A CN2009100048758 A CN 2009100048758A CN 200910004875 A CN200910004875 A CN 200910004875A CN 101477421 B CN101477421 B CN 101477421B
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CN
China
Prior art keywords
touch panel
piece
shading
touch
covering glass
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Application number
CN2009100048758A
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Chinese (zh)
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CN101477421A (en
Inventor
郭汉斌
侯思吉
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友达光电股份有限公司
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Priority to CN2009100048758A priority Critical patent/CN101477421B/en
Publication of CN101477421A publication Critical patent/CN101477421A/en
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Publication of CN101477421B publication Critical patent/CN101477421B/en

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Abstract

The invention relates to a touch-control panel structure which comprises a piece of surface covering glass, a first transparent electrode and a shading element. The surface covering glass comprises a touch-control surface and an induced surface corresponding to the touch-control surface, wherein, a central area and a peripheral area surrounding the central area can be defined on the induced surface. The first transparent electrode is arranged on the surface covering glass, in contact with the induced surface, and correspondingly arranged in the central area. The shading element is arranged on the surface covering glass, in contact with the induced surface, and correspondingly arranged in the peripheral area. Through the invention, the surface covering glass used for protecting a touch-control panel can not only integrate the known decorative coating layers to achieve the effect of beautifying the appearance of the product; and meanwhile, the effects of reducing the thickness and the weight of the product and increasing touch-control sensitivity are achieved.

Description

Touch panel structure provided

Technical field

The present invention relates to a kind of thin display; Be particularly related to a kind of the touch panel structure provided of thin display that be applied to.

Background technology

Along with the fast development of portable electric device, the input mode of conventional keys formula is replaced by the display with touch controllable function gradually.This type of known contact panel increases one group of glass substrate that possesses the touch-control sensing function in addition normally in the piece of surface covering glass of existing display panel, be converted to input signal in order to the touching signals with the external world.

Fig. 1 is a known touch panel structure provided synoptic diagram.Wherein, touch panel structure provided 1 mainly is made up of piece of surface covering glass 10, touch-control glass substrate 11 and display panels.Display panels mainly comprises colored filter substrate 15, active elements array substrates 16, goes up polarizing layer 17 and following polarizing layer 18.Piece of surface covering glass 10 is fixed on touch-control glass substrate 11 and the display panels by adhesion layer 14, in order to protection touch-control glass substrate 11 and display panels.In order to beautify outward appearance, touch panel structure provided 1 has a decorative paint layer 12 in addition, is attached at the top of piece of surface covering glass 10 by adhesion layer 13 in addition.

In this kind is touch panel structure provided, because touch-control glass substrate 11 places under the piece of surface covering glass, therefore the shielding that has been subjected to piece of surface covering glass 10, decorative paint layer 12, adhesion layer 13, adhesion layer 14 and has gone up polarizing layer 17 has a lower touch-control sensing sensitivity.

Specifically, please refer to Fig. 2, as user during with finger contact touch surface structure 1 surperficial, sensitivity (S) between user's finger and the touch-control glass substrate 11 can utilize an equivalent inductance capacitance Ctotal to represent, particularly, sensitivity (S) and the proportional example of Ctotal also are that equivalent inductance capacitance Ctotal is bigger, and sensitivity (S) better.Wherein, the inductance capacitance of each layer is relevant on this equivalent inductance capacitance Ctotal and the touch-control glass substrate 11, also, specifically can represent by following equation promptly with piece of surface covering glass 10, decorative paint layer 12, adhesion layer 13, adhesion layer 14 and to go up the inductance capacitance that polarizing layer 17 produced relevant:

1 S ∝ 1 C total = 1 C 12 + 1 C 13 + 1 C 10 + 1 C 14 + 1 C 17 · · · · · · ( 1 )

Wherein, the inductance capacitance that C12, C13, C10, C14, C17 represent decorative paint layer 12, adhesion layer 13, piece of surface covering glass 10, adhesion layer 14 respectively and go up polarizing layer 17 is further derived the 1st formula, can obtain the 2nd formula:

1 S ∝ A C total = 1 ϵ 12 d 12 + 1 ϵ 13 d 13 + 1 ϵ 10 d 10 + 1 ϵ 14 d 14 + 1 ϵ 17 d 17 · · · · · · ( 2 )

Wherein area A contacts touch panel structure provided 1 area for the user points, and ε 12, ε 13, ε 10, ε 14, ε 17And d 12, d 13, d 10, d 14, d 17Specific inductive capacity and the thickness representing decorative paint layer 12, adhesion layer 13, piece of surface covering glass 10, adhesion layer 14 respectively and go up polarizing layer 17.Can draw by (2) formula of observation, if desire promotes equivalent inductance capacitance Ctotal to promote touch panel structure provided 1 induction sensitivity, the then essential sum total that reduces the right-hand every numerical value of equal sign in (2) formula.Under yet the structure touch panel structure provided 1 does not change, even the material of decorative paint layer 12, adhesion layer 13, piece of surface covering glass 10, adhesion layer 14 and last polarizing layer 17 is done improvement (also be, increase DIELECTRIC CONSTANT) or reduce thickness d, still limited for the lifting of equivalent inductance capacitance Ctotal.

Therefore in addition, touch panel structure provided 1 has adopted a large amount of glass substrates, has suitable thickness and weight, if when desiring to be applied on the product of small size panel, will make the lightening difficulty that faces on the certain degree of product, and increase the cost of making.

In view of this, providing one to have preferable touch-control sensing sensitivity and have the touch panel structure provided of frivolous feature, is an industry problem demanding prompt solution for this reason.

Summary of the invention

A purpose of the present invention is to provide a kind of touch panel structure provided, has a frivolous structure and has preferable touch-control sensing sensitivity and fiduciary level simultaneously.

For achieving the above object, the invention provides a kind of touch panel structure provided.A this touch panel structure provided piece of surface covering glass, one first transparency electrode and shading element of comprising.Piece of surface covering glass comprises a touch-control surface, a sensitive surface corresponding to this touch-control surface setting, wherein the neighboring area that definable goes out a central area and centers on this central area on this sensitive surface.First transparency electrode is arranged on the piece of surface covering glass, contacts with this sensitive surface, and is arranged at accordingly in this central area.Shading element is arranged on this piece of surface covering glass, contacts with this sensitive surface, and is arranged at accordingly in this neighboring area.

Be provided with by this, be used to protect the piece of surface covering glass of contact panel, not only can integrate known decorative paint layer and reach the effect of beautifying product appearance, more reached the effect that reduces product thickness, weight and increase touch-control sensitivity simultaneously.

For above-mentioned purpose of the present invention, technical characterictic and advantage can be become apparent, hereinafter be elaborated with the preferred embodiment conjunction with figs..

Description of drawings

Fig. 1 is known touch panel structure provided synoptic diagram;

Fig. 2 is known touch panel structure provided equivalent inductance capacitance synoptic diagram;

Fig. 3 a is the touch panel structure provided synoptic diagram in the first embodiment of the invention;

Fig. 3 b is the touch panel structure provided synoptic diagram in the second embodiment of the invention;

Fig. 4 is the touch panel structure provided synoptic diagram in the third embodiment of the invention;

Fig. 5 a is the touch panel structure provided synoptic diagram in the fourth embodiment of the invention;

Fig. 5 b is the touch panel structure provided synoptic diagram in the fifth embodiment of the invention; And

Fig. 5 c is the touch panel structure provided synoptic diagram in the sixth embodiment of the invention.

Description of reference numerals in the above-mentioned accompanying drawing is as follows:

1 touch panel structure provided 10 piece of surface covering glass

11 touch-control glass substrates, 12 decorative paint layers

13 adhesion layers, 14 adhesion layers

15 colored filter substrates, 16 active elements array substrates

18 times polarizing layers of polarizing layer on 17

3 touch panel structure provided 30 piece of surface covering glass

30b neighboring area, 30a central area

301 touch-control surface, 302 sensitive surface

303 grooves, 31 first transparency electrodes

32 shading elements, 33 second transparency electrodes

34 protection adhesion layers, 35 colored filter substrates

Polarizing layer on 36 active elements array substrates 37

38 times polarizing layer 39 adhesion layers

4 touch panel structure provided 5 is touch panel structure provided

Embodiment

Seeing also Fig. 3 a, is the touch panel structure provided synoptic diagram of first embodiment of the invention shown in the figure.Touch panel structure provided 3 comprise a piece of surface covering glass substrate 30 and a touch-control sensing layer, and wherein, in this embodiment, the touch-control sensing layer comprises first transparency electrode 31, shading element 32 and protection adhesion layer 34.The both sides of piece of surface covering glass substrate 30 are respectively touch-control surface 301 and sensitive surface 302.Touch-control surface 301 is arranged at the outermost of display device, is the surface for the direct touch-control of user, and 302 of sensitive surface are an inside surface of relative touch-control surface 301.In addition, if with touch-control or Presentation Function, on the sensitive surface 302 of piece of surface covering glass substrate 30 more definable go out a central area 30a and a peripheral region 30b.The viewing area of the corresponding contact panel of central area 30a, and the corresponding non-display area of peripheral region 30b, and be arranged at the outer peripheral edges of sensitive surface 302 around central area 30a.

First transparency electrode 31 is arranged on the sensitive surface 302 of piece of surface covering glass 30, direct contact induction surface 302, and correspondingly be arranged in the 30a of central area, with as touch panel structure provided 3 touch-control sensing electrode, its thickness range can be between 1 micron (μ m) and 2 microns (μ m).In embodiment, the material of first transparency electrode 31 is indium tin oxide (ITO) or indium-zinc oxide (IZO), but the present invention is not as limit.

Shading element 32 is arranged on the sensitive surface 302 of piece of surface covering glass 30, direct contact induction surface 302, and correspondingly be arranged in the 30b of neighboring area, can in the 30b of neighboring area, design different decorative patterns in order to manufacturer to be provided, beautifying the overall appearance of product, and has the effect of shielding display device edge light leak simultaneously.In addition, shading element 32 has a thickness d, and its scope can be between 1 micron (μ m) and 2 microns (μ m).Shading element 32 can place any position in the 30b of neighboring area.In the present embodiment, the lateral margin of shading element 32 does not trim with piece of surface covering glass two ora terminalis, yet in other embodiments, the lateral margin of shading element 32 can trim with piece of surface covering glass two ora terminalis, as shown in Figure 4.In addition, the material of shading element 32 can be refractory ceramics printing ink, it can be allocated as random color according to actual needs, for example: the combination of white ink, red ink, green ink, blue ink, black ink or aforementioned printing ink, its heat resisting temperature scope can be between 200 ℃ and 800 ℃, to bear the technological temperature of piece of surface covering glass 30 in the technology of back.In addition, touch panel structure provided 3 have a protection adhesion layer 34 in addition, are arranged at a side of sensitive surface 302, in order to coat and to protect first transparency electrode 31 and shading element 32.

Hold above-mentionedly, touch panel structure provided 3 except comprising aforesaid piece of surface covering glass substrate 30 and touch-control sensing layer, and other comprises polarizing layer 37 on a colored filter substrate 35, the active elements array substrates 36,, once a polarizing layer 38 and an adhesion layer 39.Wherein, colored filter substrate 35 and active elements array substrates 36 are arranged between polarizing layer 37 and the following polarizing layer 38, and adhesion layer 39 is in order on the protection adhesion layer 34 that will go up polarizing layer 37 and be pasted to the touch-control sensing layer.Because colored filter substrate 35, active elements array substrates 36, upper and lower polarizing layer 37,38 and adhesion layer 39 all belong to known configurations, do not repeat them here.

According to the theory of aforementioned meter sensitivity, the touch-control sensitivity of present embodiment touch panel structure provided 3 is only relevant with the piece of surface covering glass on the touch-control sensing layer, and this equivalent inductance capacitance Ctotal can be expressed as follows:

1 S ∝ 1 C total = 1 C 30

Wherein, C 30Represent the inductance capacitance of piece of surface covering glass substrate 30, observe aforesaid equation, can learn equivalent inductance capacitance C TotalTo can not be subjected to the influence of other elements and descend, so can promote touch panel structure provided 3 induction sensitivity (S) effectively.Therefore; the piece of surface covering glass 30 of present embodiment; except function with protection touch panel structure provided 3; the function that has simultaneously the decoration product appearance in addition and promote touch-control sensing sensitivity; this touch panel structure provided 3 is applied on the display device; can reach and reduce product thickness, weight reduction, the effect that reduces production costs simultaneously.

Fig. 3 b is depicted as the touch panel structure provided of second embodiment of the invention.In the present embodiment touch panel structure provided 3 comprises one second transparency electrode 33 in addition, can be as the circuit layout around the contact panel.Second transparency electrode 33 is arranged at a side of the sensitive surface 302 of piece of surface covering glass, and is positioned at neighboring area 30b, and contacts with shading element 32, makes shading element 32 between the piece of surface covering glass 30 and second transparency electrode 33.In the present embodiment, second transparency electrode 33 covers the surface of shading element 32 fully, but the present invention also is the surface that second transparency electrode 33 also can partly cover shading element 32 not as limit.

The material of second transparency electrode 33 is identical or similar with first transparency electrode 31, is indium tin oxide (ITO) or indium-zinc oxide (IZO), and the present invention is not as limit.For technologic convenience, second transparency electrode 33 can be used identical materials with first transparency electrode 31, and forms in technology, but also can use different materials, with or do not form in people having a common goal's the technology, the present invention is not as limit.

Figure 4 shows that the touch panel structure provided of third embodiment of the invention, touch panel structure provided 4 have a groove 303 in addition.Groove 303 is arranged at sensitive surface 302 1 sides of piece of surface covering glass 30, and is positioned at neighboring area 30b, and promptly sensitive surface 302 is for having the surface of concaveconvex structure.Groove 303 has a degree of depth h, its scope can be between 5 microns (μ m) to 15 microns (μ m), the section shape of groove 303 can be triangle, right-angle triangle, square or rectangle, it can be the closed groove that is positioned at neighboring area 30b fully, or partly links up and partly be positioned at the open groove of neighboring area 30b with the external world.Aforementioned in order to form the material of shading element 32, for example: refractory ceramics printing ink, to fill up this groove 303 at least, and have a thickness d, its scope can be between 6 microns (μ m) and 17 microns (μ m).

In the present embodiment, protection adhesion layer 34 is arranged on the piece of surface covering glass 30, and contacts with the surface of sensitive surface 302, first transparency electrode 31, the surface of shading element 32 or the surface of second transparency electrode 33.Wherein, make a comment or criticism in the surface of sensitive surface 302 in the surface of the surface of first transparency electrode 31, shading element 32 and the surface of second transparency electrode 33, the perhaps surface of side direction, and the present invention is not as limit.In the present embodiment, groove 303 is the open groove of rectangle, and two ora terminalis of the lateral margin of shading element 32 and piece of surface covering glass 30 trim, and second transparency electrode 33 can trim with two ora terminalis of piece of surface covering glass 30, and the present invention is not as limit.

Fig. 5 a is depicted as the touch panel structure provided of fourth embodiment of the invention, the groove 303 on the sensitive surface 302 is filled and led up or filled up at least to its shading element 32 of inserting piece of surface covering glass 30 grooves 303, second transparency electrode 33 can partly cover the surface of shading element 32, promptly cover the part of this shading element 32 at least, its thickness range can be between 1 micron (μ m) and 2 microns (μ m).And, two ora terminalis of the lateral margin of shading element 32 and piece of surface covering glass 30 trim, 33 of second transparency electrodes do not trim with two ora terminalis of piece of surface covering glass 30, second transparency electrode 33 can protrude in two ora terminalis of piece of surface covering glass 30, or being positioned at two ora terminalis inboards of piece of surface covering glass 30, the present invention is not as limit.

Fig. 5 b is depicted as the touch panel structure provided of fifth embodiment of the invention, and the groove 303 of its piece of surface covering glass 30 is the leg-of-mutton open groove in a right angle, and has the most deep degree of a degree of depth h corresponding to groove 303.In the present embodiment, shading element 32 fills up this groove 303 at least.Wherein, so-calledly filling up at least that the surface that refers to shading element 32 and groove are 303 concordant, protrusion or slight concave, can be because the needs that design, or due to the variation of technology, the present invention be as limit.Second transparency electrode, 33 parts cover this shading element 32.

Fig. 5 c is depicted as the touch panel structure provided of sixth embodiment of the invention, and the groove 303 of its piece of surface covering glass 30 is a leg-of-mutton closed groove, and has the most deep degree of a degree of depth h corresponding to groove 303.

In sum, by being arranged at shading element and transparency electrode on the piece of surface covering glass simultaneously, make piece of surface covering glass have the function of beautifying product appearance and touch-control sensing simultaneously, can save the shortcoming that the known touch panel structure provided middle product that uses polylith glass to be caused is thick and heavy and reduce touch-control sensitivity, can reduce production costs simultaneously, improve competitiveness of product.

The above embodiments only are used for exemplifying embodiments of the present invention, and explain technical characterictic of the present invention, are not to be used for limiting protection category of the present invention.Any those of ordinary skill in the art can unlabored change or the arrangement of the identity property scope that all belongs to the present invention and advocated, and the scope of the present invention should be as the criterion with claim.

Claims (13)

  1. One kind touch panel structure provided, comprise:
    One piece of surface covering glass comprises a touch-control surface and corresponding to a sensitive surface of this touch-control surface, and wherein definable goes out a central area and around a neighboring area of this central area on this sensitive surface;
    One first transparency electrode is arranged on this piece of surface covering glass, contacts with this sensitive surface, and is arranged at accordingly in this central area; And
    One shading element is arranged on this piece of surface covering glass, contacts with this sensitive surface, and is arranged at accordingly in this neighboring area.
  2. 2. as claimed in claim 1 touch panel structure provided, wherein the side of the side of this shading element and this piece of surface covering glass trims.
  3. 3. as claimed in claim 1 touch panel structure provided, wherein have a groove in addition on this sensitive surface, and this shading element fills up this groove at least.
  4. 4. as claimed in claim 3 touch panel structure provided, wherein this groove is a closed groove or an open groove.
  5. 5. as claimed in claim 1 touch panel structure provided, wherein the material of this shading element is a refractory ceramics printing ink.
  6. 6. as claimed in claim 1 touch panel structure provided, other comprises one second transparency electrode, is arranged at a side of this sensitive surface of this piece of surface covering glass, and is positioned at this neighboring area.
  7. 7. as claimed in claim 6 touch panel structure provided, wherein this second transparency electrode covers the part of this shading element at least.
  8. 8. as claimed in claim 7 touch panel structure provided, wherein this second transparency electrode contacts with the surface of this shading element.
  9. 9. as claimed in claim 7 touch panel structure provided, wherein this shading element is arranged between this piece of surface covering glass and this second transparency electrode.
  10. 10. as claimed in claim 7 touch panel structure provided, wherein the side of the side of this shading element and this second transparency electrode trims.
  11. 11. as claimed in claim 7 touch panel structure provided, other comprises a protection adhesion layer, is arranged on this piece of surface covering glass, and contacts with the surface of this sensitive surface, this first transparency electrode, the surface of this shading element or the surface of this second transparency electrode.
  12. 12. as claimed in claim 11 touch panel structure provided, other comprises:
    One colored filter substrate is corresponding to this protection adhesion layer setting;
    Polarizing layer on one is arranged between this protection adhesion layer and this colored filter substrate; And
    One adhesion layer is arranged at this protection adhesion layer and is somebody's turn to do and goes up between the polarizing layer.
  13. 13. as claimed in claim 11 touch panel structure provided, other comprises:
    One active elements array substrates is corresponding to this protection adhesion layer setting; And
    Once polarizing layer is arranged on the surface of this active elements array substrates.
CN2009100048758A 2009-01-21 2009-01-21 Touch control panel structure CN101477421B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100048758A CN101477421B (en) 2009-01-21 2009-01-21 Touch control panel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100048758A CN101477421B (en) 2009-01-21 2009-01-21 Touch control panel structure

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Publication Number Publication Date
CN101477421A CN101477421A (en) 2009-07-08
CN101477421B true CN101477421B (en) 2011-08-17

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Families Citing this family (25)

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CN101989157A (en) * 2009-08-03 2011-03-23 义隆电子股份有限公司 High-sensitivity capacitance type touch assembly and manufacturing procedure thereof
TWI615743B (en) 2010-03-25 2018-02-21 Winsky Tech Limited Touch panel and method of manufacturing same
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CN102279662A (en) * 2010-06-13 2011-12-14 明兴光电股份有限公司 Touch-control display panel and colorized filtering touch-control baseplate
KR101217589B1 (en) * 2010-06-14 2013-01-02 일진디스플레이(주) Capacitive touch panel of integrated window panel type
CN102314270A (en) * 2010-07-01 2012-01-11 富创得科技股份有限公司 Monolithic capacitor touch panel structure
TWI460640B (en) * 2010-12-22 2014-11-11 Innolux Corp Touch panel
CN102096505A (en) * 2011-01-07 2011-06-15 牧东光电(苏州)有限公司 Touch panel jointed fragmentally and manufacturing method thereof
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TW201241684A (en) * 2011-04-08 2012-10-16 Wintek Corp Touch panel and touch display panel
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CN102629020A (en) * 2012-04-28 2012-08-08 信利半导体有限公司 Display system with touch function
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US9677168B2 (en) * 2013-10-08 2017-06-13 TPK America, LLC Touch panel and method for manufacturing the same
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CN107706197B (en) * 2017-09-28 2020-07-03 京东方科技集团股份有限公司 Substrate base plate, display device and manufacturing method

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