CN104102396A - Touch screen and touch display device - Google Patents
Touch screen and touch display device Download PDFInfo
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- CN104102396A CN104102396A CN201310123378.6A CN201310123378A CN104102396A CN 104102396 A CN104102396 A CN 104102396A CN 201310123378 A CN201310123378 A CN 201310123378A CN 104102396 A CN104102396 A CN 104102396A
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Abstract
The invention discloses a touch screen and a touch display device adopting the touch screen. The touch screen comprises a transparent base plate film, a first conducting layer, a second conducting layer, a transparent protection film and a transparent protection coating, wherein the first conducting layer is arranged on the first surface of the transparent base plate film, and is used for detecting the position information of a touch point, the second conducting layer is arranged on the second surface of the transparent base plate film, the transparent protection film covers the first conducting layer and is used for protecting the first conducting layer, and the transparent protection layer is formed on the transparent protection film and has the hardness being not smaller than 5H. The touch screen provided by the invention adopts a full film type structure. Compared with the existing touch screen structure with a glass layer, the touch screen has the advantages that the cost is low, and the properties in various aspects such as transparency, falling resistance, energy consumption, portability and the like are high.
Description
Technical field
The present invention relates to touch display technique field, relate in particular to a kind of touch-screen and touch display unit.
Background technology
Touch-screen is generally arranged in the display device of electron device, by detecting the touch location of user on screen, electron device is controlled, as content display device being shown by touching input message etc. is controlled.In prior art, conventional touch-screen comprises resistive touch screen, capacitive touch screen and infrared touch panel, and they obtain touch point positional information by different modes.Wherein, transmittance is high, sharpness good, high reliability owing to having for capacitive touch screen, is more and more applied in touch display device.
The structure of existing capacitive touch screen can be regarded the screen body consisting of four layers of combined screen simply as, comprising: glass-based flaggy, be located at double-edged the first conductive layer of described glass-based flaggy and the second conductive layer and cover the glassivation on described the first conductive layer respectively.Wherein said glass-based flaggy is used for forming described the first conductive layer and the second conductive layer at its tow sides as substrate; The second conductive layer one is facing to display panel one side of touch display unit, for shielding inner electric signal; Described the first conductive layer is the key component of whole touch-screen, for detection of the position of touch point; Described glassivation is for the protection of described the first conductive layer; because this glassivation is directly by user's Long Term Contact; therefore require it to have higher hardness, prevent owing to often using and being worn, the silicon soil glass that in prior art, employing hardness is higher is conventionally as described glassivation.
As seen from the above, the substrate layer of existing capacitive touch screen and protective seam are all glass materials, and because glass has frangible characteristic, so touch-screen easily breaks after having fallen, and punching is also more difficult on glassy layer; In addition, because protective seam generally adopts silicon soil glassivation, need to use rare earth material, increase the cost of touch-screen.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: a kind of cost is low, performance is good touch-screen and touch display unit are provided.
(2) technical scheme
For addressing the above problem, on the one hand, the invention provides a kind of touch-screen, comprising:
Transparent substrate film;
The first conductive layer, is located at the first surface of described transparent substrate film;
The second conductive layer, second of being located at described transparent substrate film, for detected touch point positional information together with described the first conductive layer;
Transparent protective film, is covered on described the first conductive layer, for the protection of described the first conductive layer;
Transparent protective coating, is formed on described transparent protective film, has the hardness that is not less than 5H.
Preferably, described transparent substrate film and described transparent protective film are organic high molecular polymer material.
Preferably, described the first conductive layer and/or the second conductive layer are located at the conductive net layer in described transparent substrate film for printing and/or plating.
Preferably, between described the first conductive layer and described transparent protective film, be provided with support rete, for described touch-screen is carried out to structural support.
Preferably, the edge of described transparent substrate film has and towards display device direction, extends crookedly, forms the crooked connecting portion that the first conductive layer of making in described transparent substrate film and the second conductive layer are electrically connected to the circuit main board of display device respectively.
Preferably, described crooked connecting portion comprises the first bend and the second bend, and the first conductive layer on described the first bend is towards the circuit main board setting of display device; The second conductive layer on described the second bend is towards the circuit main board setting of display device.
Preferably, described transparent protective film is provided with printing mark layer towards a side of described the first conductive layer, and the position of described printing mark layer is corresponding with the non-display area of corresponding display panel.
Preferably, described support rete is provided with printing mark layer towards a side of described the first conductive layer, and the position of described printing mark layer is corresponding with the non-display area of corresponding display panel.
On the other hand, the present invention also provides a kind of touch display unit, the touch-screen that comprises circuit main board, display panel and be located at described display panel bright dipping side, and wherein, described touch-screen is above-mentioned touch-screen.
(3) beneficial effect
Touch-screen of the present invention has adopted full membrane type structure, compares with the existing touch screen structure with glassy layer, and its cost is low, and many-sided performances such as transparency, crash resistance, energy consumption, portability are high;
Substrate of the present invention is membrane type substrate, it can be processed into the shape that can directly be connected with the circuit main board of display device, and then the conductive layer on touch screen base plate can be directly electrically connected to the circuit on circuit main board, and do not need by flexible PCB, to connect in addition, make to simplify the structure, and be difficult for occurring signal and connect fault, further reduced the cost of touch-screen and improved reliability.
Accompanying drawing explanation
Fig. 1 is the layer structure schematic diagram according to a kind of touch-screen of the embodiment of the present invention;
Fig. 2 is according to the layer structure schematic diagram of the another kind of touch-screen of the embodiment of the present invention;
Fig. 3 is the structural representation being connected with circuit main board with the second conductive layer according to the first conductive layer on the crooked connecting portion of the transparent substrate film of embodiment of the present invention touch-screen;
Fig. 4 is the layer structure schematic diagram according to embodiment of the present invention touch display unit.
Embodiment
Below in conjunction with drawings and Examples, that the present invention is described in detail is as follows.
Embodiment mono-:
The layer structure schematic diagram that Figure 1 shows that a kind of touch-screen that the present embodiment is recorded, described touch-screen comprises:
Transparent substrate film 110,
The first conductive layer 120, is located at the first surface of described transparent substrate film 110;
The second conductive layer 130, second of being located at described transparent substrate film 110, for detected touch point positional information together with described the first conductive layer;
Transparent protective film 140, is covered on described the first conductive layer 120, for the protection of described the first conductive layer 120;
Transparent protective coating 150, is formed on described transparent protective film 140, has the hardness that is not less than 5H.
In the present embodiment, the glass-based flaggy scioptics substrate film realization of prior art, glassivation are realized with transparent protective film 140 and transparent protective coating 150, make the full membrane structure of whole touch-screen for all being formed by rete, compare with the existing touch-screen with glassy layer, it has the following advantages: thickness is thinner, weight is lighter, makes the good portability of touch-screen; Low price, can be so that the cost of touch-screen; Intensity improves, and crash resistance is good, reduces maintenance cost, has extended the serviceable life of touch-screen; The processing such as punch on touch-screen is more prone to; Do not need to use rare earth material, further reduce costs, and environmental protection more.
Embodiment bis-:
The structural representation that Figure 2 shows that a kind of capacitive touch screen 200 that the present embodiment is recorded, as shown in Figure 2, described touch-screen 200 comprises:
Transparent substrate film 210, it is organic high molecular polymer material, in the present embodiment, described transparent substrate film 210 is polyethylene terephthalate (Polyethylene terephthalate, PET) material; Certainly, those skilled in the art can know, the present invention can also adopt other suitable material to form described transparent substrate film.
The first conductive layer 220, is formed on the first surface of described transparent substrate film 210; In the present embodiment, described the first conductive layer 220 is located at the conductive net layer on described transparent substrate film 210 first surfaces for printing or plating, and described conductive net layer consists of some crisscross wires, and the coordinate of touch point is detected;
In the prior art, need to be by first forming metal conductive film owing to forming conductive net layer on glass-based flaggy, by techniques such as mask, etchings, unwanted part is removed again, the part staying is conductive net layer, the complex process, the cost that make to form conductive net layer on glass-based flaggy are high, and cannot form very meticulous conductive mesh lines, so the first conductive layer 220 on glass-based flaggy often adopts tin indium oxide (Indium Tin Oxide, ITO) transparent conductive film; And in the present embodiment owing to having adopted transparent substrate film 210, by printing and the technique such as plated film, can on described the first conductive layer 220, form the meticulous conductive net layer of grid.Therefore, compared with prior art, the present embodiment has adopted conductive net layer as after the first conductive layer 220, because the transmittance of conductive net layer is higher than ITO transparent conductive film, resistance is little, signal conduction of velocity is more accurate sooner, therefore make the penetrability of whole touch-screen improve, can make the touch-screen of overlarge area; And because the accuracy of identification of conductive net layer is higher, the multiconductor that is therefore more applicable to following touch-screen detects and fingerprint identification technology.
The second conductive layer 230, second of being formed on described transparent substrate film 210 is upper,, for detected touch point positional information together with described the first conductive layer.When application, described the second conductive layer 230 is towards the display panel setting of touch display unit, the electrode of the first conductive layer 220 and the second conductive layer 230 ceaselessly carries out electron scanning, when user's finger or other instrument contact with touch screen surface, two conductive layers change with the capacitance of the corresponding position of contact point, control circuit calculates contacting points position according to the capacitance changing, and makes corresponding reaction; In the present embodiment, described the second conductive layer 230 is the same with the first conductive layer 220, can or plate for printing and be located at the conductive net layer in described transparent substrate film 210;
Transparent protective film 240, identical with described transparent substrate film 210, for organic high molecular polymer material, and in the present embodiment, described transparent protective film 240 is also PET material, certainly, those skilled in the art can know, the material of transparent protective film 240 can be different from transparent substrate film 210, similar with transparent substrate film 210, and the present invention can also adopt other suitable material to form described transparent protective film 240;
Supporting rete 250, be formed at described transparent protective film 240 towards a side of the first conductive layer 220, is transparent hard film layer, and touch-screen is played to structural support effect.In the present embodiment, described support rete 250 is polycarbonate (Polycarbonate, PC) rete, certainly, those skilled in the art can learn, except above-mentioned PC rete, support rete 250 of the present invention can also adopt the transparent hard film layer of other suitable material to realize the structural support to touch-screen.In addition,, if other structure of touch-screen or display device is enough played a supporting role, this support rete 250 also can omit;
Transparent protective coating 260; by modes such as coatings, be formed on the opposite side of described transparent protective film 240; for providing the hardness that is greater than 5H to described transparent protective film 240 surfaces; make 240 layers of transparent protective films be difficult for being worn; in the present embodiment, the DIAMOND GUARD that described transparent protective coating 260 adopts Uni-Pixel company to produce
tMcured film (Hard Coat Film, its hardness is 6H, enough makes the full membrane type touch-screen of the present embodiment not easy to wear, has improved touch-screen serviceable life; In Fig. 2, on described support rete 250, transparent protective film 240 and transparent protective coating 260, also form porosely 290, compared with prior art, the present embodiment can punch as required more easily.
Printing mark layer 270, be formed on described support rete 250 towards a side of described the first conductive layer 220, the position of described printing mark layer 270 is corresponding with the non-display area of corresponding display panel, its effect is to form black or colored form frame around in the touch area of touch-screen, and the words such as trade mark or model or pattern can be formed on this part; In not having the scheme that supports rete 250, this printing mark layer 270 also can be formed on 240 layers of side towards described the first conductive layer 220 of described transparent protective film.Owing to forming label layer on the glassivation of prior art, need to realize by techniques such as etchings, complex process, cost are high, and the pattern of its color and formation is more single; The present embodiment is owing to having adopted full membrane type structure, while forming described printing mark layer 270 on described support rete 250 or transparent protective film 240, by simple techniques such as printings, just can realize, reduce cost, and can realize complicated and colorful pattern;
The first tack coat 280, is located between described support rete 250 and described the first conductive layer 220, for connecting described support rete 250 and described transparent substrate film 210 and the first conductive layer 220.
As shown in Figure 2, in the present embodiment, the edge of described transparent substrate film 210 has and towards display device direction, extends crookedly, forms the crooked connecting portion 211 that the first conductive layer 220 of making in described transparent substrate film 210 and the second conductive layer 230 are electrically connected to the circuit main board 420 of display device respectively.
Figure 3 shows that a kind of structural representation of embodiment of the crooked connecting portion 211 of the present embodiment.As seen from Figure 3, described crooked connecting portion 211 comprises that the first conductive layer 220 on described the first bend 211a is towards the first surface setting of the circuit main board 420 of display device along the first bend 211a and the second bend 211b that stagger and arrange perpendicular to display device circuit main board 420 directions; The second conductive layer 230 on described the second bend 211b is towards second setting of the circuit main board 420 of display device.In the present embodiment, because substrate is transparent substrate film 210, compare with existing glass-based flaggy, its pliability is good, in process, can flexural deformation form described crooked connecting portion 211, and then make the first conductive layer 220 and the second conductive layer 230 in transparent substrate film 210 to carry out signal transmission with circuit main board 420 by described crooked connecting portion 211, compared with prior art, reduce the use of flexible PCB, further reduced cost and process complexity.
Table one
Table one shows the data comparative result of technical scheme and the prior art of the present embodiment, by table one, can be found out, the present embodiment compared with prior art, cost is lower, performance is better, although slightly more inferior than prior art in hardness, the skin hardness that is greater than 5H can meet the use needs of touch-screen completely.
Embodiment tri-:
The present embodiment has been recorded a kind of touch display unit, the touch-screen that comprises circuit main board, display panel and be located at described display panel bright dipping side, and wherein, described touch-screen can be the touch-screen of embodiment mono-or embodiment bis-records.
Figure 4 shows that the touch display unit of the touch-screen 200 that has adopted embodiment bis-records.In the present embodiment, shown in touch display unit be touch-control mobile terminal, as mobile phone, panel computer etc., it is also included as whole touch display unit provides the battery 410 of power supply, be located at driving chip 430 on described circuit main board 420 etc.In the present embodiment, described display panel 440 is display panels, and in the present embodiment, it is senior super dimension switch technology (ADvanced Super Dimension Switch, an ADS) pattern.Between the transparent substrate film 210 of described display panel 440 and touch-screen 200 and the second conductive layer 230, by the second tack coat 450, connect.
The first bend 211a of the transparent substrate film 210 of described touch-screen 200 is located between described circuit main board 420 and described display panel 440, and the first conductive layer 220 on it is electrically connected to the circuit of circuit main board 420 tops; The second bend 211b of described transparent substrate film 210 is located at the below of described circuit main board 420, and the second conductive layer 230 on it is electrically connected to the circuit of described circuit main board 420 belows, realizes the signal transmission between touch-screen 200 and circuit main board 420.
The present embodiment is owing to having adopted touch-screen above, so it compares with existing touch-screen, and cost is lower, performance is better.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. a touch-screen, is characterized in that, comprising:
Transparent substrate film;
The first conductive layer, is located at the first surface of described transparent substrate film;
The second conductive layer, second of being located at described transparent substrate film, for detected touch point positional information together with described the first conductive layer;
Transparent protective film, is covered on described the first conductive layer, for the protection of described the first conductive layer;
Transparent protective coating, is formed on described transparent protective film, has the hardness that is not less than 5H.
2. touch-screen as claimed in claim 1, is characterized in that, described transparent substrate film and described transparent protective film are organic high molecular polymer material.
3. touch-screen as claimed in claim 1, is characterized in that, described the first conductive layer and/or the second conductive layer comprise that printing and/or plating are located at the conductive net layer in described transparent substrate film.
4. touch-screen as claimed in claim 1, is characterized in that, between described the first conductive layer and described transparent protective film, is provided with support rete, for described touch-screen is carried out to structural support.
5. touch-screen as claimed in claim 1, it is characterized in that, the edge of described transparent substrate film has and towards display device direction, extends crookedly, forms the crooked connecting portion that the first conductive layer of making in described transparent substrate film and the second conductive layer are electrically connected to the circuit main board of display device respectively.
6. touch-screen as claimed in claim 5, is characterized in that, described crooked connecting portion comprises the first bend and the second bend, and the first conductive layer on described the first bend is towards the circuit main board setting of display device; The second conductive layer on described the second bend is towards the circuit main board setting of display device.
7. touch-screen as claimed in claim 1, is characterized in that, described transparent protective film is provided with printing mark layer towards a side of described the first conductive layer, and the position of described printing mark layer is corresponding with the non-display area of corresponding display panel.
8. touch-screen as claimed in claim 4, is characterized in that, described support rete is provided with printing mark layer towards a side of described the first conductive layer, and the position of described printing mark layer is corresponding with the non-display area of corresponding display panel.
9. a touch display unit, the touch-screen that comprises circuit main board, display panel and be located at described display panel bright dipping side, is characterized in that, described touch-screen is the touch-screen described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123378.6A CN104102396A (en) | 2013-04-10 | 2013-04-10 | Touch screen and touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123378.6A CN104102396A (en) | 2013-04-10 | 2013-04-10 | Touch screen and touch display device |
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| Publication Number | Publication Date |
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| CN104102396A true CN104102396A (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310123378.6A Pending CN104102396A (en) | 2013-04-10 | 2013-04-10 | Touch screen and touch display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110188702A (en) * | 2019-05-31 | 2019-08-30 | 上海天马微电子有限公司 | Display panel and display device |
| CN111596779A (en) * | 2019-02-20 | 2020-08-28 | 上海和辉光电有限公司 | Flexible display device and method of manufacturing the same |
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| US20090107736A1 (en) * | 2007-10-30 | 2009-04-30 | N-Trig Ltd. | Laminated digitizer sensor |
| US20110001721A1 (en) * | 2009-07-02 | 2011-01-06 | Hsueh-Chih Chiang | Digital Capacitive Touch Panel Structure |
| CN202126672U (en) * | 2011-06-03 | 2012-01-25 | 洋华光电股份有限公司 | Touch panel capable of accurately positioning each layer |
| CN102789828A (en) * | 2011-05-19 | 2012-11-21 | 智盛全球股份有限公司 | Conductive film layer structure and touch control panel thereof |
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2013
- 2013-04-10 CN CN201310123378.6A patent/CN104102396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090107736A1 (en) * | 2007-10-30 | 2009-04-30 | N-Trig Ltd. | Laminated digitizer sensor |
| US20110001721A1 (en) * | 2009-07-02 | 2011-01-06 | Hsueh-Chih Chiang | Digital Capacitive Touch Panel Structure |
| CN102789828A (en) * | 2011-05-19 | 2012-11-21 | 智盛全球股份有限公司 | Conductive film layer structure and touch control panel thereof |
| CN202126672U (en) * | 2011-06-03 | 2012-01-25 | 洋华光电股份有限公司 | Touch panel capable of accurately positioning each layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111596779A (en) * | 2019-02-20 | 2020-08-28 | 上海和辉光电有限公司 | Flexible display device and method of manufacturing the same |
| CN110188702A (en) * | 2019-05-31 | 2019-08-30 | 上海天马微电子有限公司 | Display panel and display device |
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Application publication date: 20141015 |