CN203759678U - Touch screen and display device - Google Patents
Touch screen and display device Download PDFInfo
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- CN203759678U CN203759678U CN201420170099.5U CN201420170099U CN203759678U CN 203759678 U CN203759678 U CN 203759678U CN 201420170099 U CN201420170099 U CN 201420170099U CN 203759678 U CN203759678 U CN 203759678U
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Abstract
The utility model provides a touch screen and a display device, which relate to the display technical filed, and solves the problem that existing sensing electrodes and common public electrode parasitic capacitance are large, wherein a color film base plate comprises a first substrate base plate and a first electrode which is arranged on the first substrate base plate, an array substrate comprises a second substrate base plate and a transparent conducting layer which is arranged on the second substrate base plate, the transparent conducting layer comprises a second electrode and a common electrode, the first and the second electrodes are sensing electrodes and drive electrodes, the first and the second electrodes are respectively used to receive sensing signals and load drive signals in touch time, a common electrode is same to a first electrode signal, and the second electrode and the common electrode are used to load common electrode signals in display time.
Description
Technical field
The utility model relates to display technique field, relates in particular to a kind of touch-screen and display device.
Background technology
Along with the development of display technique, touch-screen (Touch Panel) technology enters fast-developing period.Touch-screen can be divided into according to structure: external touch-screen (Add on cell Touch Panel) and Embedded Touch Screen (In Cell Touch Panel).Wherein, Embedded Touch Screen is that the induction electrode of touch screen is embedded in to LCD intralamellar part, thereby has reduced greatly the thickness of complete machine structure, and has reduced manufacturing cost.
Existing Embedded Touch Screen as shown in Figure 1, comprise the color membrane substrates 10 and the array base palte 20 that are oppositely arranged, wherein, color membrane substrates 10 comprises the first underlay substrate 1 and is arranged on multiple colour elements district 2 on described the first underlay substrate 1 and the shading region 3 between described colour element district 2, and is provided with induction (Touch Sensing) electrode 4 in the position that is positioned at shading region 3.Array base palte 20 comprises the second underlay substrate 7 and is arranged on the transparency conducting layer on described the second underlay substrate 7, wherein, transparency conducting layer comprises: drive (Touch Driving) electrode 6 and public electrode 5, wherein public electrode 5 is corresponding with induction electrode 4 positions on color membrane substrates 10.When drive electrode 6 is added and drives signal (Tx), induction electrode 4 receives induced signal (Rx), judge whether finger touch by induction electrode 4 before and after calculating finger touch with the variable quantity that drive electrode 6 forms electric capacity, to realize touch function, but add common electrode signal (Vcom) at public electrode 5 (public electrode 5 and induction electrode 4 can form stray capacitance to realize demonstration simultaneously, thereby make the mutual capacitance of induction electrode and drive electrode little, be unfavorable for the reception of signal, its touch-control weak effect.
Utility model content
Embodiment of the present utility model provides a kind of touch-screen and display device, has solved existing touch-screen and be subject to the impact of the stray capacitance of public electrode and induction electrode, and the mutual capacitance of induction electrode and drive electrode is little, the problem of touch-control weak effect.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
The utility model embodiment provides a kind of touch-screen, comprises the color membrane substrates and the array base palte that are oppositely arranged, and wherein, color membrane substrates comprises the first underlay substrate and is arranged on the first electrode on described the first underlay substrate; Array base palte comprises the second underlay substrate and is arranged on the transparency conducting layer on described the second underlay substrate, and described transparency conducting layer comprises the second electrode and public electrode, and described the first electrode and described the second electrode position are staggered; Described the first electrode and described the second electrode induction electrode and drive electrode each other; Within the touch-control time period, described the first electrode and described the second electrode are respectively used to receive induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal.
Optionally, the public electrode on described array base palte is electrically connected with the first electrode on described color membrane substrates.
Optionally, the public electrode on described array base palte is electrically connected by conductive gold spacer with the first electrode on described color membrane substrates.
Optionally, described public electrode is corresponding with described the first electrode position.
The width of the direction that optionally, described public electrode is arranged along the first electrode is greater than the width of described the first electrode.
Optionally, described public electrode is identical with the structure of the first electrode, and it all forms to insert with described the second electrode and refers to electrode structure.
Optionally, described the first electrode is induction electrode, and described the second electrode is drive electrode.
Optionally, described color membrane substrates comprises colored film layer and black matrix rete, and wherein, described the first electrode is corresponding with described black matrix.
The utility model embodiment provides a kind of display device, comprises arbitrary described touch-screen that the utility model embodiment provides.
A kind of touch-screen and display device that the utility model embodiment provides, described the first electrode and described the second electrode induction electrode and drive electrode each other, described induction electrode is for receive induced signal within the touch-control time period, and described drive electrode is for load driver signal within the described touch-control time period; Within the touch-control time period, described the first electrode and described the second electrode are respectively used to receive induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal; Within the touch-control time period, the first electrode and public electrode and the second electrode form respectively and touch field, be conducive to strengthen touching intensity, simultaneously the signal of induction electrode and public electrode is identical, between induction electrode and public electrode, there is no an electric potential difference, be conducive to reduce stray capacitance, reduce noise jamming.
Brief description of the drawings
Fig. 1 is a kind of touch-screen schematic diagram of the prior art;
The touch-control effect schematic diagram of the touch-screen that Fig. 2 provides for the utility model embodiment;
One the first electrode schematic diagram that Fig. 3 provides for the utility model embodiment;
One the second electrode and public electrode schematic diagram that Fig. 4 provides for the utility model embodiment;
Fig. 5 is the electrical connection schematic diagram of the second electrode shown in Fig. 4;
The plan structure schematic diagram of a kind of touch-screen that Fig. 6 provides for the utility model embodiment.
Reference numeral:
1) the first underlay substrate; 2) colour element district; 3) shading region; 4) induction electrode; 5) public electrode; 6) drive electrode; 7) the second underlay substrate; 10) color membrane substrates; 20) array base palte.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.
The utility model embodiment provides a kind of touch-screen, comprises the color membrane substrates and the array base palte that are oppositely arranged, and wherein, color membrane substrates comprises the first underlay substrate and is arranged on the first electrode on described the first underlay substrate; Array base palte comprises the second underlay substrate and is arranged on the transparency conducting layer on described the second underlay substrate, and described transparency conducting layer comprises the second electrode and public electrode, and described the first electrode and described the second electrode position are staggered; Wherein, described the first electrode and described the second electrode induction electrode and drive electrode each other; Within the touch-control time period, described the first electrode and described the second electrode are respectively used to receive induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal.
It should be noted that, described the first electrode and described the second electrode position are staggered, and stagger in the position of the first electrode and the second electrode, and out of plumb is just right.
Concrete, in the utility model embodiment, adopt timesharing to drive and show and touch technology: a frame time is divided into displaying time section and touch-control time period, receives respectively induced signal at touch-control time period internal induction electrode and public electrode; Load driver signal on drive electrode, drive electrode couple drive signal within this touch-control time period generates touch-control sensing signal and exports this touch-control sensing signal by induction electrode and public electrode; In displaying time section, on public electrode and drive electrode, all load common electrode signal, now public electrode and drive electrode play the effect of public electrode, to realize demonstration.Preferably, the material of common electrode layer is transparent conductive material, for example: ITO (Indium tin oxide, tin indium oxide).
In the utility model embodiment, described the first electrode and described the second electrode induction electrode and drive electrode each other, can be that described the first electrode is induction electrode, and described the second electrode is drive electrode; Or described the first electrode is drive electrode, described the second electrode is induction electrode, and induction electrode is for receive induced signal within the touch-control time period, and drive electrode is for load driver signal within the touch-control time period.And during the utility model is implemented, preferably taking described the first electrode as induction electrode, described the second electrode is that drive electrode is that example is elaborated.
Described within the touch-control time period described the first electrode and described the second electrode be respectively used to receive induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal.Can be that described the first electrode is for receiving induced signal within the touch-control time period, described the second electrode be for load driver signal, and now, described public electrode is identical with described the first electrode signal for receiving induced signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal.Can also be that described the first electrode is for load driver signal within the touch-control time period, described the second electrode be used for receiving induced signal, and now, described public electrode is identical with described the first electrode signal for load driver signal; In displaying time section by loading common electrode signal to realize Presentation Function at public electrode and drive electrode.
In the present embodiment, be used for receiving induced signal with described the first electrode within the touch-control time period, described the second electrode is for load driver signal, and now, described public electrode is identical with described the first electrode signal is that example is elaborated for receiving induced signal.As shown in Figure 2, within the touch-control time period, induction electrode 4 on touch location place color membrane substrates 10 receives induced signal (Rx), the drive electrode 6 load driver signals (Tx) on array base palte 20, and public electrode 5 receives induced signal (Rx).Within the touch-control time period, public electrode 5 on induction electrode 4 and array base palte 20 on color membrane substrates 10 forms and touches field, induction electrode 4 on color membrane substrates 10 and the drive electrode on array base palte 20 6 form and touch field simultaneously, can play the mutual capacity increasing between drive electrode TX and induction electrode RX, in the time that finger carries out touch-control, the electric field line that finger siphons away increases, increased the mutual appearance change amount of finger, be conducive to strengthen touch intensity, the signal of induction electrode and public electrode is identical simultaneously, between induction electrode and public electrode, there is no an electric potential difference, be conducive to reduce stray capacitance, reduce noise jamming.In displaying time section, the public electrode 5 on array base palte 20 and drive electrode 6 load common electrode signal (Vcom) simultaneously, to realize demonstration.
A kind of touch-screen that the utility model embodiment provides, described the first electrode and described the second electrode induction electrode and drive electrode each other, described induction electrode is for receive induced signal within the touch-control time period, and described drive electrode is for load driver signal within the described touch-control time period; Within the touch-control time period, described the first electrode and described the second electrode are respectively used to receive induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal; Within the touch-control time period, the first electrode and public electrode and the second electrode form respectively and touch field, be conducive to strengthen touching intensity, simultaneously the signal of induction electrode and public electrode is identical, between induction electrode and public electrode, there is no an electric potential difference, be conducive to reduce stray capacitance, reduce noise jamming.
Optionally, described color membrane substrates comprises colored film layer and black matrix rete, and wherein, described the first electrode is corresponding with described black matrix.Described array base palte comprises pixel electrode layer, and described the second electrode is corresponding with pixel electrode.
It should be noted that, color membrane substrates comprises the first underlay substrate and is arranged on black matrix rete, the colored film layer on described the first underlay substrate, wherein said the first electrode is corresponding with described black matrix rete, and described induction electrode is arranged on the position of corresponding black matrix.Certainly, described induction electrode can also be transparency electrode, and described induction electrode can also be arranged on the position of the corresponding colored film layer of color membrane substrates.
Described array base palte comprises pixel electrode layer and transparency conducting layer, and wherein, pixel electrode layer comprises pixel electrode, and transparency conducting layer comprises public electrode and the second electrode, and described the second electrode is corresponding with described pixel electrode position.In displaying time section, because the second electrode loads common electrode signal, form horizontal component of electric field to drive liquid crystal display by pixel electrode and the second electrode.
Optionally, the public electrode on described array base palte is electrically connected with the first electrode on described color membrane substrates.The first electrode and public electrode electrical connection, it receives induced signal simultaneously.Concrete, the public electrode on described array base palte is electrically connected by conductive gold spacer with the first electrode on described color membrane substrates, to realize synchronous reception induced signal.
By public electrode and the first electrode are electrically connected, public electrode is identical with the signal of the first electrode, and its electromotive force equates, has reduced the stray capacitance between the first electrode and public electrode with respect to prior art, can promote touch-control effect.
Optionally, described public electrode is corresponding with described the first electrode position.Can be that described induction electrode is corresponding with public electrode position, because induction electrode and public electrode receive identical induced signal, form new induction electrode, the right opposite that has reduced public electrode and induction electrode is long-pending, therefore, reduced the stray capacitance of induction electrode.And further preferred, the width of the direction that described public electrode is arranged along the first electrode is greater than the width of described the first electrode.Because the first electrode is arranged on color membrane substrates, public electrode is arranged on array base palte, the width of the direction that public electrode is arranged along the first electrode is greater than the width of described the first electrode, can be as shown in Figure 3 and Figure 4, public electrode 5 be greater than the width of induction electrode 4 as shown in Figure 3 along the width in 101 directions.Can further increase like this mutual capacitance of induction electrode and drive electrode, and then be conducive to signal reception, strengthen touch-control effect.
Optionally, described public electrode is identical with the structure of the first electrode, and it all forms to insert with described the second electrode and refers to electrode structure.
Concrete, the induction electrode 4 on color membrane substrates can be as shown in Figure 3, the public electrode 5 on array base palte 20 and drive electrode 6 can be as shown in Figure 4.Wherein, the upper induction electrode 4 of color membrane substrates 1 is corresponding with public electrode 5 positions on array base palte, and described induction electrode 4 is identical with the electrode shape of described public electrode 5.In the utility model embodiment, preferably make the width width of 101 directions shown in Fig. 4 (along) of the direction that public electrode arranges along the first electrode be greater than the width of described induction electrode 4.Increase the mutual capacitance of induction electrode 4 and drive electrode 5, improved touch-sensitive and accuracy.
In addition, in order to realize touch function, make induction electrode 4 and the vertically opposite setting of public electrode 5, concrete induction electrode 4 can be as shown in Figure 3, drive electrode 6 and public electrode 5 can be as shown in Figure 4, and the concrete connected mode of drive electrode 6 can be as shown in Figure 5, each drive electrode 6 is that Tx (V) is electrically connected by corresponding lead-in wire Tx respectively, is that 101 directions vertical (being 102 directions) form many drive electrodes vertical with induction electrode thereby make the arragement direction of edge and induction electrode.Concrete, in Fig. 5, comprise Tx1 (V) with drive electrode 6) Tx8 (V), lead-in wire comprises Tx1) Tx8 is that example is elaborated.Concrete, the plan structure schematic diagram of the touch-screen that the public electrode 5 shown in induction electrode 4 and Fig. 4 as shown in Figure 3 and drive electrode 6 form is as shown in Figure 6.And as shown in Figure 5, drive electrode Tx1 (V) is electrically connected by Tx1, and drive electrode Tx2 (V) is electrically connected by Tx2, and drive electrode Tx3 (V) is electrically connected by Tx3.Be that drive electrode 6 forms many rows along 102 directions, it is vertical with induction electrode 4 (forming many rows along 101 directions), and then realizes touch function by induction electrode 4 and drive electrode 6.And preferred, as shown in Figure 6, the centre distance a of drive electrode 6 and induction electrode is 5) 6mm.
Certainly, also can make induction electrode vertical with drive electrode corresponding, public electrode can be the position of the black matrix of corresponding colored film layer.
The utility model embodiment provides a kind of driving method of touch-screen, comprising:
Within the touch-control time period, described the first electrode and described the second electrode receive respectively induced signal and load driver signal, and described public electrode is identical with described the first electrode signal;
In displaying time section, described the second electrode and described public electrode load common electrode signal.
Described within the touch-control time period described the first electrode and described the second electrode receive respectively induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode load common electrode signal.Can be that described the first electrode receives induced signal within the touch-control time period, described the second electrode load driver signal, now, described public electrode receive induced signal identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode load common electrode signal.Can also be described the first electrode load driver signal within the touch-control time period, described the second electrode receives induced signal, and now, described public electrode is identical with described the first electrode signal is load driver signal; In displaying time section by loading common electrode signal to realize Presentation Function at public electrode and drive electrode.
Be touch-screen within the touch-control time period by receive induced signal or load driver signal simultaneously at public electrode and the first electrode simultaneously, can reduce like this stray capacitance of public electrode and the first electrode, and because public electrode is identical with the signal of the first electrode, between public electrode and the second electrode, form and touch field, be conducive to strengthen touching intensity, reduce noise jamming simultaneously.
It should be noted that, the driving method that the utility model embodiment provides, is applied to the touch-screen that the utility model embodiment provides, when the public electrode on described array base palte is electrically connected with the first electrode on described color membrane substrates.The first electrode and public electrode electrical connection, its signal is identical.Concrete, the public electrode on described array base palte is electrically connected by conductive gold spacer with the first electrode on described color membrane substrates, to realize synchronous reception induced signal., in displaying time section, due to public electrode and the electrical connection of the first electrode, public electrode, the first electrode and the second electrode load common electrode signal simultaneously.
The utility model embodiment provides a kind of display device, comprises arbitrary described touch-screen that the utility model embodiment provides.Described display device can be liquid crystal display, Electronic Paper, OLED (OrganicLight) Emitting Diode(Organic Light Emitting Diode) display device such as display and comprise any product or parts with Presentation Function such as TV, digital camera, mobile phone, panel computer of these display devices.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. a touch-screen, comprises the color membrane substrates and the array base palte that are oppositely arranged, and wherein, color membrane substrates comprises the first underlay substrate and is arranged on the first electrode on described the first underlay substrate; Array base palte comprises the second underlay substrate and is arranged on the transparency conducting layer on described the second underlay substrate, and described transparency conducting layer comprises the second electrode and public electrode, and described the first electrode and described the second electrode position are staggered; It is characterized in that described the first electrode and described the second electrode induction electrode and drive electrode each other; Within the touch-control time period, described the first electrode and described the second electrode are respectively used to receive induced signal and load driver signal, and described public electrode is identical with described the first electrode signal; In displaying time section, described the second electrode and described public electrode are used for loading common electrode signal.
2. touch-screen according to claim 1, is characterized in that, the public electrode on described array base palte is electrically connected with the first electrode on described color membrane substrates.
3. touch-screen according to claim 2, is characterized in that, the public electrode on described array base palte is electrically connected by conductive gold spacer with the first electrode on described color membrane substrates.
4. touch-screen according to claim 1, is characterized in that, described public electrode is corresponding with described the first electrode position.
5. touch-screen according to claim 4, is characterized in that, the width of the direction that described public electrode is arranged along the first electrode is greater than the width of described the first electrode.
6. touch-screen according to claim 1, is characterized in that, described public electrode is identical with the structure of the first electrode, and it all forms to insert with described the second electrode and refers to electrode structure.
7. touch-screen according to claim 1, is characterized in that, described the first electrode is induction electrode, and described the second electrode is drive electrode.
8. according to the touch-screen described in claim 1-7 any one, it is characterized in that, described color membrane substrates comprises colored film layer and black matrix rete, and wherein, described the first electrode is corresponding with described black matrix.
9. a display device, is characterized in that, comprises the touch-screen described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170099.5U CN203759678U (en) | 2014-04-09 | 2014-04-09 | Touch screen and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170099.5U CN203759678U (en) | 2014-04-09 | 2014-04-09 | Touch screen and display device |
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| Publication Number | Publication Date |
|---|---|
| CN203759678U true CN203759678U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420170099.5U Expired - Fee Related CN203759678U (en) | 2014-04-09 | 2014-04-09 | Touch screen and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015154349A1 (en) * | 2014-04-09 | 2015-10-15 | 京东方科技集团股份有限公司 | Touch screen and drive method therefor, and display device |
| WO2016101629A1 (en) * | 2014-12-23 | 2016-06-30 | Boe Technology Group Co., Ltd. | Touch display substrate, touch display panel and touch display apparatus |
-
2014
- 2014-04-09 CN CN201420170099.5U patent/CN203759678U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015154349A1 (en) * | 2014-04-09 | 2015-10-15 | 京东方科技集团股份有限公司 | Touch screen and drive method therefor, and display device |
| US10101847B2 (en) | 2014-04-09 | 2018-10-16 | Boe Technology Group Co., Ltd. | Touch screen and drive method therefor, and display device |
| WO2016101629A1 (en) * | 2014-12-23 | 2016-06-30 | Boe Technology Group Co., Ltd. | Touch display substrate, touch display panel and touch display apparatus |
| US9977538B2 (en) | 2014-12-23 | 2018-05-22 | Boe Technology Group Co., Ltd. | Touch display substrate, touch display panel and touch display apparatus |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 |