CN105117092A - Projected capacitive type touch display panel - Google Patents
Projected capacitive type touch display panel Download PDFInfo
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- CN105117092A CN105117092A CN201510661157.3A CN201510661157A CN105117092A CN 105117092 A CN105117092 A CN 105117092A CN 201510661157 A CN201510661157 A CN 201510661157A CN 105117092 A CN105117092 A CN 105117092A
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- display panel
- touch display
- projected capacitive
- conductive material
- capacitive touch
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Abstract
The invention provides a projected capacitive type touch display panel. The projected capacitive type touch display panel comprises an array substrate, a color filter substrate, a conductive material layer located on the upper surface of the color filter substrate, an insulating pattern layer arranged above the conductive material layer, an upper polarizer located above the insulating pattern layer and a lower polarizer located below the array substrate, wherein the array substrate and the color filter substrate are arranged oppositely; the insulating pattern layer is provided with at least one opening, by means of the at least one opening, the conductive material layer is bonded to the upper polarizer, and residual charges accumulated in the panel are removed. Compared with the prior art, the insulating pattern layer is added, at least one opening is formed in the insulating pattern layer, the conductive material layer is bonded to the upper polarizer by assembly glue with conductive capacity, so that the electrostatic charges accumulated in the touch panel are removed, and the bad situations of charge residue and the like at present are eliminated.
Description
Technical field
The present invention relates to a kind of touch-control display technique, particularly relate to a kind of projected capacitive touch display panel.
Background technology
In recent years, along with the continuous advancement of image display technology, because touch-control display panel has the advantage that the mode that can pass through touching directly carries out instruction input, just like become one of display that market is commonly used, and to be widely used in various electronic product.In the prior art, divide according to the design attitude of touch-control sensor, contact panel is roughly divided into external hanging type (on-cell) and embedded (in-cell) two kinds.
Specifically, embedded touch control panel is made in panel construction by touch control sensor, directly touch-control sensor (TPsensor) is placed in LCD panel of thin-film transistor module, touch controllable function is integrated in display, need not plug-in contact panel again.Usually, the thickness of embedded touch control panel is light and thin compared with external hanging touch panel, but process rate comparatively external hanging touch panel is low.External hanging touch panel is directly made in by touch-control sensor on cover glass (coverlens) to reach the lightening of product, also referred to as single-glass touch-control (OneGlassSolution, OGS).Its touch-control ultimate principle utilizes transparent conductive film to make X, Y-axis circuit, and its staggered place forms switch (Switch), is responded to the weak current of human body by touch control operation, and then make switch perform ON/OFF.
In addition, contact panel can be divided into capacitance type touch-control panel, electric resistance touch-control panel, optical touch panel etc. by type.For capacitance type touch-control panel, this touch technology mainly utilizes the electric current induction technology of pressing force to carry out work.Such as, when finger touch is to metal level, human body electric field, user and touch screen surface form a coupling capacitance, for high-frequency current, because electric capacity is direct conductor, so finger siphons away a very little electric current from contact point, this electric current flows out from the electrode touch screen corner.The electric current flowing through four electrodes is directly proportional to the distance of finger to corner, and controller, namely by the accurate Calculation to these four current ratios, finally draws the more specific location information of touch point on screen.From the above, time together with the respective Function Integration Mechanism of projected capacitive touch panel and external hanging touch panel, the contact panel of plug-in projected capacitive can just be formed.
But, when above-mentioned plug-in projected capacitive touch technology is applied in some machine, often produce charge residue problem (chargeresidueissue).This is because the partially transparent electrode of touch-control sensing layer is in suspension (floating) state, they are easily subject to ectocine (such as rub, remove diaphragm) and affect liquid crystal electric field, and then cause electrostatic to remain.In view of this, how designing a kind of plug-in projected capacitive touch panel newly, remain situation to overcome above-mentioned electrostatic of the prior art, is the problem that person skilled is urgently to be resolved hurrily in the industry.
Summary of the invention
For the above-mentioned defect existing for plug-in projected capacitive touch panel of the prior art, projected capacitive touch panel that the invention provides a kind of novelty, that effectively can remove charge residue.
According to one aspect of the present invention, provide a kind of projected capacitive touch display panel, comprise the array basal plate and a colored optical filtering substrates that are oppositely arranged, wherein this projected capacitive touch display panel also comprises:
One conductive material layer, is positioned at the upper surface of described colored optical filtering substrates;
One insulating pattern layer, is arranged on the top of described conductive material layer;
One first polaroid, is positioned at the top of described insulating pattern layer; And
One second polaroid, is positioned at the below of described array base palte,
Wherein, described insulating pattern layer has at least one opening, makes described conductive material layer gluing to described first polaroid, to remove in panel the residual charge accumulating formation by described opening.
An embodiment wherein, described conductive material layer is connected to described first polaroid through an adhesive glue, and wherein, the resistivity of described adhesive glue is less than 1*10
12ohm/square.
An embodiment wherein, described conductive material layer is tin indium oxide or metal material.
An embodiment wherein, described conductive material layer comprises one first electrode, a flatness layer and one second electrode successively, and described first electrode extends in the horizontal direction, described second electrode be multiple pattern and with described first electrode electric property coupling.
An embodiment wherein, described second electrode of described conductive material layer is by described opening gluing extremely described first polaroid.
An embodiment wherein, described first electrode and described second electrode are tin indium oxide material.
An embodiment wherein, described projected capacitive touch display panel also comprises a cover glass, and it conforms to described first polaroid by OCA optical cement.
An embodiment wherein, described projected capacitive touch display panel also comprises a cover glass, has an air layer between itself and described first polaroid.
Adopt projected capacitive touch display panel of the present invention, it comprises the array basal plate and a colored optical filtering substrates, a conductive material layer, an insulating pattern layer, one first polaroid and one second polaroid that are oppositely arranged, conductive material layer is positioned at the upper surface of colored optical filtering substrates, insulating pattern layer is arranged on the top of conductive material layer, first polaroid is positioned at the top of insulating pattern layer, and the second polaroid is positioned at the below of array base palte.This insulating pattern layer has at least one opening, and above opening makes conductive material layer gluing to the first polaroid, to remove in panel the residual charge accumulating formation.Compared to prior art, the present invention has set up an insulating pattern layer, and on insulating pattern layer, offered at least one opening, utilize the adhesive glue with conductive capability by conductive material layer gluing to the first polaroid, thus the electrostatic charge allowing touch-control accumulate formation is removed, and solves the bad situations such as the charge residue of current existence.
Accompanying drawing explanation
Reader, after having read the specific embodiment of the present invention with reference to accompanying drawing, will become apparent various aspects of the present invention.Wherein,
Figure 1A illustrates the structural representation of the projected capacitive touch display panel according to an embodiment of the present invention;
Figure 1B illustrates the position relationship schematic diagram of the conductive material layer of the projected capacitive touch display panel of Figure 1A, insulating pattern layer and the first polaroid;
Fig. 2 illustrates the structural representation of the conductive material layer in the projected capacitive touch display panel of Figure 1A;
Fig. 3 A to Fig. 3 D illustrates the processing procedure decomposing schematic representation of the conductive material layer of Fig. 2 respectively;
Fig. 4 illustrates the first embodiment of the insulating pattern layer adopting projected capacitive touch display panel of the present invention;
Fig. 5 illustrates the second embodiment of the insulating pattern layer adopting projected capacitive touch display panel of the present invention; And
Fig. 6 illustrates the 3rd embodiment of the insulating pattern layer adopting projected capacitive touch display panel of the present invention.
Embodiment
The technology contents disclosed to make the application is more detailed and complete, and can refer to accompanying drawing and following various specific embodiment of the present invention, mark identical in accompanying drawing represents same or analogous assembly.But those of ordinary skill in the art should be appreciated that hereinafter provided embodiment is not used for limiting the scope that contains of the present invention.In addition, accompanying drawing, only for being schematically illustrated, is not drawn according to its life size.
With reference to the accompanying drawings, the embodiment of various aspects of the present invention is described in further detail.
Figure 1A illustrates the structural representation of projected capacitive touch display panel according to an embodiment of the present invention, and Figure 1B illustrates the position relationship schematic diagram of the conductive material layer of the projected capacitive touch display panel of Figure 1A, insulating pattern layer and the first polaroid.
With reference to Figure 1A and Figure 1B, in this embodiment, projected capacitive touch display panel of the present invention comprises the colored optical filtering substrates (colorfiltersubstrate) 100 and array base palte (arraysubstrate) 102, conductive material layer 104,1 first polaroid 106,1 second polaroid 108 and an insulating pattern layer 110 that are oppositely arranged.Such as, conductive material layer 104 is tin indium oxide (ITO) or metal (Metal) material.
Specifically, display dielectric layer is between colored optical filtering substrates 100 and array base palte 102.Conductive material layer 104 is arranged at the upper surface of colored optical filtering substrates 100, that is, colored optical filtering substrates 100 is away from the surface of display dielectric layer.Insulating pattern layer 110 is arranged on the top of conductive material layer 104, and it has at least one opening H.First polaroid (upperpolarizer) 106 is positioned at the top of insulating pattern layer 110, and the second polaroid (lowerpolarizer) 108 is positioned at the below of array base palte 102.As shown in Figure 1B, the opening H through insulating pattern layer 110 can make conductive material layer 104 gluing to the first polaroid 106, to remove the accumulative residual charge formed in panel.At this, the first polaroid 106 is a stepped construction, and its middle layer is polyvinyl alcohol (PVA) (PVA) material, and PVA layer both sides are Triafol T (TAC) material.Wherein, optically active is PVA layer; but PVA layer is very easily hydrolyzed; in order to protect the physical characteristics of polaroid; therefore need, at the both sides of PVA layer each compound one deck, there is high light transmission rate, water-tolerant and the TAC thin layer with certain physical strength protect, and then form the first polaroid 106.
At a specific embodiment, conductive material layer 104 is connected to the first polaroid 106 through an adhesive glue 112, and wherein, the resistivity of adhesive glue 112 is less than 1*10
12ohm/square, in other words, conductive material layer 104 can pass through the adhesive glue 112 with conductive capability and is electrically coupled to the first polaroid 106, when the first polaroid 106 edge-coating elargol and when being coupled to the earth terminal of array base palte 102, just can form electric charge Releasing loop, thus remove in panel the residual charge (being such as in the electric charge that the electrode of suspended state accumulates) on especially conductive material layer 104.
Fig. 2 illustrates the structural representation of the conductive material layer in the projected capacitive touch display panel of Figure 1A.Fig. 3 A to Fig. 3 D illustrates the processing procedure decomposing schematic representation of the conductive material layer of Fig. 2 respectively.
With reference to Fig. 2, in this illustrative examples, conductive material layer 104 comprises one first electrode 116, flatness layer (OC) 120 and one second electrode 118 successively.Such as, the first electrode 116 and the second electrode 118 are tin indium oxide material, can be called ITO1 layer and ITO2 layer accordingly.Wherein, the first electrode 116 extends in the horizontal direction, the second electrode 118 be such as rhombus multiple pattern and with the first electrode 116 electric property coupling in the horizontal direction.Furthermore, in fig. 2, the pattern of the second electrode 118 discretely, be evenly distributed on horizontal line and vertically arrange.Be positioned at adjacent two pattern transfers first electrode 116 electric property couplings of horizontal line together, and the first electrode 116 is connected to bond pad district (bondingpadarea) 114 via transmission metal wire M.Be positioned at adjacent two patterns also electric property coupling of vertically row, but the first electrode 116 electrical isolation in order to extend with horizontal direction, the flatness layer 120 of insulation is provided with at intervening portion.Thus, when the opening H of insulating pattern layer 110 correspond to the pattern of the second electrode 118 vertically arrange time, can by adhesive glue 112 gluing to the first polaroid 106 of opening H and conduction.
Composition graphs 3A to Fig. 3 D, when forming conductive material layer 104, first can form the first electrode 116, they extend (as Fig. 3 A) all in the horizontal direction.Then, then formed metal transmit wire M (as Fig. 3 B).Then, form a flatness layer 120 at the correspondence position of the first electrode 116, these flatness layers are used for horizontal line pattern and the vertical row pattern (as Fig. 3 C) of electrical isolation second electrode.Finally, the second electrode 118 (as Fig. 3 D) of patterning is formed at correspondence position.
Fig. 4 illustrates the first embodiment of the insulating pattern layer adopting projected capacitive touch display panel of the present invention.
With reference to Fig. 4, in this embodiment, projected capacitive touch display panel to comprise in a colored optical filtering substrates 200, array basal plate 202, touch-control sensing layer (touchsensor) 204, a polaroid 206 and once polaroid 208.Wherein, touch-control sensing layer 204 is for adopting the similar designs of the conductive material layer of such as Fig. 2, it comprises touch-control sender electrode and touch-control receiving electrode, and they all can pass through opening and the supreme polaroid 206 of conducting resinl electric property coupling of insulating pattern layer, to remove the residual charge in panel.It is pointed out that in the touch-control display panel of Fig. 4, above upper polaroid 206, do not place cover glass (coverlens) again.
Fig. 5 illustrates the second embodiment of the insulating pattern layer adopting projected capacitive touch display panel of the present invention.
Fig. 5 and Fig. 4 is compared; its key distinction is; projected capacitive touch display panel in Fig. 5 also comprises a cover glass (coverlens) 210; it conforms to upper polaroid 206 by OCA (OpticallyClearAdhesive) optical cement 212, and this juncture also can be described as direct joint (directbonding) mode.Here OCA optical cement can be a kind of extraordinary adhesive for the transparent optical element that bonds.
Fig. 6 illustrates the 3rd embodiment of the insulating pattern layer adopting projected capacitive touch display panel of the present invention.
Compared by Fig. 6 and Fig. 5, its key distinction is, although the projected capacitive touch display panel of Fig. 6 also comprises a cover glass 210, do not conform to upper polaroid 206 through optical cement.The substitute is, be air layer (airlayer) between cover glass 210 and upper polaroid 206, and this juncture also can be described as air and engages (airbonding) mode.
Adopt projected capacitive touch display panel of the present invention, it comprises the array basal plate and a colored optical filtering substrates, a conductive material layer, an insulating pattern layer, one first polaroid and one second polaroid that are oppositely arranged, conductive material layer is positioned at the upper surface of colored optical filtering substrates, insulating pattern layer is arranged on the top of conductive material layer, first polaroid is positioned at the top of insulating pattern layer, and the second polaroid is positioned at the below of array base palte.This insulating pattern layer has at least one opening, and above opening makes conductive material layer gluing to the first polaroid, to remove in panel the residual charge accumulating formation.Compared to prior art, the present invention has set up an insulating pattern layer, and on insulating pattern layer, offered at least one opening, utilize the adhesive glue with conductive capability by conductive material layer gluing to the first polaroid, thus the electrostatic charge allowing touch-control accumulate formation is removed, and solves the bad situations such as the charge residue of current existence.
Above, the specific embodiment of the present invention is described with reference to the accompanying drawings.But those skilled in the art can understand, when without departing from the spirit and scope of the present invention, various change and replacement can also be done to the specific embodiment of the present invention.These change and replace and all drop in claims of the present invention limited range.
Claims (8)
1. a projected capacitive touch display panel, comprise the array basal plate and a colored optical filtering substrates that are oppositely arranged, it is characterized in that, described projected capacitive touch display panel comprises:
One conductive material layer, is positioned at the upper surface of described colored optical filtering substrates;
One insulating pattern layer, is arranged on the top of described conductive material layer;
One first polaroid, is positioned at the top of described insulating pattern layer; And
One second polaroid, is positioned at the below of described array base palte,
Wherein, described insulating pattern layer has at least one opening, makes described conductive material layer gluing to described first polaroid, to remove in panel the residual charge accumulating formation by described opening.
2. projected capacitive touch display panel according to claim 1, is characterized in that, described conductive material layer is connected to described first polaroid through an adhesive glue, and wherein, the resistivity of described adhesive glue is less than 1*10
12ohm/square.
3. projected capacitive touch display panel according to claim 1, is characterized in that, described conductive material layer is tin indium oxide or metal material.
4. projected capacitive touch display panel according to claim 1, it is characterized in that, described conductive material layer comprises one first electrode, a flatness layer and one second electrode successively, described first electrode extends in the horizontal direction, described second electrode be multiple pattern and with described first electrode electric property coupling.
5. projected capacitive touch display panel according to claim 4, is characterized in that, described second electrode of described conductive material layer is by described opening gluing extremely described first polaroid.
6. projected capacitive touch display panel according to claim 4, is characterized in that, described first electrode and described second electrode are tin indium oxide material.
7. projected capacitive touch display panel according to claim 1, is characterized in that, described projected capacitive touch display panel also comprises a cover glass, and it conforms to described first polaroid by OCA optical cement.
8. projected capacitive touch display panel according to claim 1, is characterized in that, described projected capacitive touch display panel also comprises a cover glass, has an air layer between itself and described first polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661157.3A CN105117092A (en) | 2015-10-14 | 2015-10-14 | Projected capacitive type touch display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661157.3A CN105117092A (en) | 2015-10-14 | 2015-10-14 | Projected capacitive type touch display panel |
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| CN105117092A true CN105117092A (en) | 2015-12-02 |
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| CN201510661157.3A Pending CN105117092A (en) | 2015-10-14 | 2015-10-14 | Projected capacitive type touch display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415622A (en) * | 2018-05-23 | 2018-08-17 | 京东方科技集团股份有限公司 | A kind of touch-control display panel and preparation method thereof, display device |
| CN109558023A (en) * | 2017-09-27 | 2019-04-02 | 华为终端（东莞）有限公司 | Touch display screen and terminal device |
-
2015
- 2015-10-14 CN CN201510661157.3A patent/CN105117092A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109558023A (en) * | 2017-09-27 | 2019-04-02 | 华为终端（东莞）有限公司 | Touch display screen and terminal device |
| CN108415622A (en) * | 2018-05-23 | 2018-08-17 | 京东方科技集团股份有限公司 | A kind of touch-control display panel and preparation method thereof, display device |
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| WD01 | Invention patent application deemed withdrawn after publication |