CN202976043U - Externally mounted touch-control module and touch-control display device - Google Patents
Externally mounted touch-control module and touch-control display device Download PDFInfo
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- CN202976043U CN202976043U CN 201220591723 CN201220591723U CN202976043U CN 202976043 U CN202976043 U CN 202976043U CN 201220591723 CN201220591723 CN 201220591723 CN 201220591723 U CN201220591723 U CN 201220591723U CN 202976043 U CN202976043 U CN 202976043U
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Abstract
The utility model discloses an externally mounted touch-control module and a touch-control display device, wherein a capacitance type touch-control function can be realized through a capacitance touch-control sensing electrode, a capacitance touch-control drive electrode which is insulated from and crossed with the capacitance touch-control sensing electrode, and a metal bridge for bridging the adjacent capacitance touch-control drive electrode; and simultaneously, an electromagnetic touch-control function can be realized through a first electromagnetic touch-control electrode which is insulated from the metal bridge and arranged on the same layer, and a second electromagnetic touch-control electrode which is insulated from and crossed with the first electromagnetic touch-control electrode. The electromagnetic touch-control electrodes are arranged in front, and the electromagnetic signal intensity of an electromagnetic pen can be reduced, so that the power consumption is reduced, and the influence of an electromagnetic signal on a display panel also can be reduced; and moreover, the first electromagnetic touch-control electrode and the metal bridge for bridging the capacitance touch-control drive electrode are arranged on the same layer, so that the thickness of the whole module is reduced while electromagnetic touch-control is combined with capacitance touch-control, and simultaneously the production cost of the whole module is also saved.
Description
Technical field
The utility model relates to the touch technology field, relates in particular to a kind of external hanging type touch module and touch control display apparatus.
Background technology
Along with the develop rapidly of display technique, touch-screen (Touch Screen Panel) spreads all in people's life gradually.At present, touch-screen can be divided into according to principle of work: resistance-type, condenser type, infrared-type and surface acoustic wave type, electromagnetic type, ripple induction type and frustrated total internal reflection optical induction type etc. shake.Wherein, capacitive touch screen relies on the advantages such as high sensitivity, long-life, high transmission rate with its unique touch-control principle, is pursued in the industry to be the new lover.And board of electromagnetic-type touch is owing to can realizing that former person's handwriting is hand-written, in many high-order computer-aided mappings (CAD, Computer Aided Design) system, as being widely used in AutoCAD.
present electromagnetism Trackpad is all generally the touch-control antenna plate that adopts the attached formula of the back of the body, this electromagnetic touch-control antenna plate is to be made of the staggered plain conductor of transverse and longitudinal, as shown in Figure 1, directions X plain conductor and Y-direction plain conductor are mutually vertical and insulate by insulation course between the two, electromagnetism touch-control schematic diagram as shown in Figure 2, two strip metal wires are that touch-control electrode Y1 and Y2 are interconnected by a touch-control electrode of x direction, equivalence becomes resistance R x, when time writer near module surface and when sliding, the electromagnetic wave wire cutting, produce induction electromotive force V, and the closer to the position of time writer, the induction electromotive force at this place is stronger.The potential vector sizableness that touch-control electrode Y1 and Y2 receive represents in the position of swept resistance arrow between resistance, comes thus to determine that on the electrode of Y-direction, induction electromotive force is large, finally determines the Y electrode position; In like manner the electrode on directions X is consistent with its principle, and because two groups of up and down are overlapping, pen can be regarded as two swept resistances in the same way or the reverse sync slip when mobile, determined the coordinate of X, Y, just can calculate nib at the coordinate position on plane.Simultaneously, the front end of time writer is provided with the pressure sensitivity device, can determine the thickness of person's handwriting by the dynamics of pressing, this namely the electromagnetic touch-control antenna plate can realize the reason that former person's handwriting is hand-written; The voltage signal that main control chip receives the touch-control antenna plate process with computing after, obtain the position of electromagnetic hand-writing pen and the pressure that pen is pressed.
Because the plain conductor of electromagnetic touch-control antenna plate is nontransparent, and the thickness of whole electromagnetic touch-control antenna plate is thicker, therefore generally all can only be attached to the rear side of display panel, and the touch module of carrying on the back attached formula structure is separated with display panel between time writer and antenna plate in the touch-control process, in order to realize smooth touch-control, need to improve the electromagnetic signal strength of time writer, this also can cause the power consumption of battery to increase, and the electromagnetic signal of gaining in strength also can have certain impact to display panel.
Summary of the invention
The utility model embodiment provides a kind of external hanging type touch module and touch control display apparatus, in order to realize simultaneously electromagnetic type and capacitive touch controllable function.
A kind of external hanging type touch module that the utility model embodiment provides, the metal bridge of the described capacitance touching control drive electrode that the capacitance touching control drive electrode that comprises the capacitance touching control induction electrode, insulate with described capacitance touching control induction electrode and intersect and put and bridge joint are adjacent also comprises:
With described metal bridge insulation and with layer first an electromagnetism touch-control electrode that arranges;
With described the first electromagnetism touch-control electrode insulation and intersect and the second electromagnetism touch-control electrode of putting.
The utility model embodiment also provides a kind of display device, comprises display device and the touch module that is arranged at described display device top, the above-mentioned external hanging type touch module that described touch module provides for the utility model embodiment.
The beneficial effect of the utility model embodiment comprises:
A kind of external hanging type touch module and touch control display apparatus that the utility model embodiment provides, by the capacitance touching control induction electrode, with capacitance touching control induction electrode insulation and intersect the metal bridge of the capacitance touching control drive electrode put and the adjacent capacitance touching control drive electrode of bridge joint, can realize the capacitance touching control function; Simultaneously, by with metal bridge insulation and the first electromagnetism touch-control electrode that arranges with layer, and with the first electromagnetism touch-control electrode insulation and intersect and the second electromagnetism touch-control electrode of putting, can realize the electromagnetic touch-control function.Due to electromagnetism touch-control electrode is preposition, can reduce the electromagnetic signal strength of time writer, thereby reduce power consumption, also can reduce electromagnetic signal to the impact of display panel; And, because the metal bridge with the first electromagnetism touch-control electrode and bridge joint capacitance touching control drive electrode arranges with layer, can reduce the thickness of whole module when realizing that electromagnetic touch-control and capacitance touching control combine, also save the production cost of whole module simultaneously.
Description of drawings
Fig. 1 is the structural representation of electromagnetic touch-control antenna plate in prior art;
Fig. 2 is the schematic diagram of electromagnetic touch-control in prior art;
The structural representation of the touch module that Fig. 3 provides for the utility model embodiment;
The vertical view of the design configuration of each rete of the touch module that Fig. 4 a-Fig. 4 e provides for the utility model embodiment;
The STRUCTURE DECOMPOSITION schematic diagram of the touch module that Fig. 5 provides for the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the external hanging type touch module that the utility model embodiment is provided and the embodiment of touch control display apparatus are described in detail.
A kind of external hanging type touch module that the utility model embodiment provides, to have added electromagnetism touch-control electrode in the structure of existing projected capacitive touch module, realize the combination of electromagnetic touch-control and capacitance touching control, existing projected capacitive touch module specifically comprises: capacitance touching control induction electrode, with capacitance touching control induction electrode insulation and intersect and the metal bridge of the adjacent capacitance touching control drive electrode of the capacitance touching control drive electrode put and bridge joint, in the structure of projected capacitive touch module, the utility model has also added as lower component:
With the metal bridge insulation and with layer first an electromagnetism touch-control electrode that arranges;
With the first electromagnetism touch-control electrode insulation and intersect and the second electromagnetism touch-control electrode of putting.
Wherein, due to the first electromagnetism touch-control electrode and the same layer setting of metal bridge, namely make in a composition technique, therefore the first electromagnetism touch-control electrode is generally metal electrode, and in order to increase as much as possible the transmittance of touch module, in the specific implementation, generally the second electromagnetism touch-control electrode, capacitance touching control drive electrode and capacitance touching control induction electrode are set to ITO(Indium Tin Oxides, indium tin metal oxide) electrode.
Further, in the structure of above-mentioned external hanging type touch module, in order to increase the transmittance of module, the capacitance touching control electrode can adopt the mode of individual layer ITO electrode to arrange, namely capacitance touching control drive electrode and capacitance touching control induction electrode can be arranged with layer, by a composition technique preparation, simplify to greatest extent the rete of module when guaranteeing the touch-control effect.
The external hanging type touch module that provides due to the utility model embodiment combines capacitance touching control electrode and electromagnetism touch-control electrode cleverly, forms a touch module that can realize simultaneously condenser type and electromagnetic touch-control function.This touch module is preposition with electromagnetism touch-control electrode, can reduce the electromagnetic signal strength of time writer, thereby reduces power consumption; And, because the metal bridge with the first electromagnetism touch-control electrode and bridge joint capacitance touching control drive electrode arranges with layer, can reduce the thickness of whole module, also saved the production cost of whole module simultaneously.
In the specific implementation, the external hanging type touch module that the utility model embodiment provides can directly be produced on the outermost layer substrate of display panel, substrate back as the color membrane substrates of display panels also can be produced on independent underlay substrate, does not do restriction at this.
particularly, can find out the structure of the above-mentioned external hanging type touch module that provides from the utility model embodiment, touch module comprises three main retes, an ITO layer that is namely formed by the capacitance touching control drive electrode that arranges with layer and capacitance touching control induction electrode, by the metal level that forms with layer metal bridge that arranges and the first electromagnetism touch-control drive electrode, and the 2nd ITO layer that is formed by the second electromagnetism touch-control drive electrode, owing to needing insulation between 3 retes, therefore, touch module also comprises two insulation courses, and, generally also have the passivation layer that the protection module is not affected by the external environment in the top of touch module.
In the specific implementation, hierarchical relationship between three main retes in touch module can change flexibly, namely the order of preparation rete can be an ITO layer → metal level → the 2nd ITO layer on substrate, also can be for second ITO layer → metal level → ITO layer etc., no longer enumerate at this.But, the metal that the common metal layer uses is all nontransparent, the transmittance that the first electromagnetism touch-control electrode of preparing and metal bridge can affect module, therefore, the common metal layer can be at the top layer of module, the metal level that is comprised of the first electromagnetism touch-control electrode and metal bridge can be arranged at the bottom of external hanging type touch module, utilize like this rete on it to block to greatest extent opaque the first electromagnetism touch-control electrode.And, also can be by regulating electromagnetism touch-control resolution, i.e. gap between the first electromagnetism touch-control electrode and the thickness transparence that realizes metal level.
Further, when the external hanging type touch module that provides at the utility model embodiment is applied in display panels, can also attach polaroid at external hanging type touch module top layer, utilize covering of polaroid also can block opaque the first electromagnetism touch-control electrode.
Below just with touch module preparation on the color membrane substrates of liquid crystal panel, and the order of rete is: an ITO layer → metal level → the 2nd ITO layer illustrates the structure and characteristics of the touch module that the utility model embodiment provides for example.
As shown in Figure 3, liquid crystal panel is comprised of array base palte 1, color membrane substrates 2, the liquid crystal 3 that is filled between array base palte 1 and color membrane substrates 2, each rete for preparing successively touch module on color membrane substrates 2: an ITO layer 4, the first insulation course 5, metal level 6, the second insulation course 7, the 2nd ITO layer 8 and passivation layer 9, and be pasted with polaroid 10 above passivation layer.
The below illustrates one by one to the making flow process of the touch module of said structure and the design configuration of each rete.
Step 1: color membrane substrates 2 dorsad the one side of liquid crystal 3 prepare an ITO layer 4, as shown in Fig. 4 a, form capacitance touching control drive electrode 41 and capacitance touching control induction electrode 42 by a composition technique on an ITO layer 4, capacitance touching control drive electrode 41 and the capacitance touching control induction electrode 42 that can find out formation intersect and put, and pass through raceway groove 43 mutually insulateds between the two.
Step 2: deposition the first insulation course 5 on an ITO layer 4, as shown in Fig. 4 b, form metal bridge via hole 51, metal routing via hole 52 and the second electromagnetism touch-control electrode via hole 53 by a composition technique on the first insulation course 5, wherein, the position of the second electromagnetism touch-control electrode via hole 53 is to determine according to the wiring direction of the second electromagnetism charging utmost point of preparation thereafter, if the second electromagnetism touch-control electrode laterally connects up, the second corresponding electromagnetism touch-control electrode via hole 53 should be positioned at the left side of Fig. 4 b.
Step 3: depositing metal layers 6 on the first insulation course 5, as shown in Fig. 4 c, form the metal wire 63 of metal bridge 61, the first electromagnetism touch-control electrode 62, conducting the second electromagnetism touch-control electrode and the metal line 64 of correspondence by a composition technique on metal level 6.Wherein, in the interval region of each the first electromagnetism touch-control electrode 62 between adjacent metal bridge 63, in the specific implementation, the horizontal wiring that the first electromagnetism touch-control electrode 62 can be as shown in Fig. 4 c also can vertically be connected up, and does not do restriction at this.
Step 4: deposition the second insulation course 7 on metal level 6 as shown in Fig. 4 d, forms the via hole 71 of conducting the second electromagnetism touch-control electrode by a composition technique on the second insulation course 7.
Step 5: deposition the 2nd ITO layer 8 on the second insulation course 7, as shown in Fig. 4 e, form the second electromagnetism touch-control electrode 81 by a composition technique on the 2nd ITO layer 8, this second electromagnetism touch-control electrode 81 should be vertical with the first electromagnetism touch-control electrode 62 antarafacials.So far, by the electromagnetism touch control unit in the second electromagnetism touch-control electrode 81 and the first electromagnetism touch-control electrode 62 besieged city as shown in dotted line frame in Fig. 4 e, for the electrode pattern pixel size that guarantees the electromagnetism touch-control is tried one's best evenly, when the second electromagnetism touch-control electrode 81 is set, should make the spacing between the second adjacent electromagnetism touch-control electrode 81 identical with spacing between adjacent the first electromagnetism touch-control electrode 62.
Step 6: preparation passivation layer 9 on the 2nd ITO layer 8, attach polaroid 10, complete the preparation of touch module.
Fig. 5 is the STRUCTURE DECOMPOSITION schematic diagram of each rete in above-mentioned touch module.
In the structure of above-mentioned touch module, between electric capacity drive electrode and Electromagnetic Drive electrode, mutually insulated does not interfere with each other, realize the operation of electromagnetic touch-control and capacitance touching control when therefore touch module can be realized, also can realize the independent operation of electromagnetic touch-control or capacitance touching control, and adopt optimized algorithm to reduce EMI(Electro-Magnetic Interference as far as possible, electromagnetic interference (EMI)) after the interference, can improve the signal to noise ratio (S/N ratio) (Signal Noise Ratio, SNR) of two kinds of touch control manners.
Further, in the process that realizes separately the electromagnetism touch control operation, the capacitance touching control electrode is in the Off state, namely the capacitance touching control electrode of an ITO layer can be connect 0V voltage and be equal to ground connection, such ITO layer has also played the effect of screen layer, can reduce to greatest extent the driving signal of display panel to the interference of touch module.
Based on same utility model design, the utility model embodiment also provides a kind of touch control display apparatus, comprises display device and the touch module that is arranged at the display device top, the above-mentioned external hanging type touch module that this touch module provides for the utility model embodiment.
Particularly, display device can be liquid crystal display (LCD), organic electroluminescent (OLED), plasma (PDP) or cathode ray (CRT) display device etc.
A kind of external hanging type touch module and touch control display apparatus that the utility model embodiment provides, by the capacitance touching control induction electrode, with capacitance touching control induction electrode insulation and intersect the metal bridge of the capacitance touching control drive electrode put and the adjacent capacitance touching control drive electrode of bridge joint, can realize the capacitance touching control function; Simultaneously, by with metal bridge insulation and the first electromagnetism touch-control electrode that arranges with layer, and with the first electromagnetism touch-control electrode insulation and intersect and the second electromagnetism touch-control electrode of putting, can realize the electromagnetic touch-control function.Due to electromagnetism touch-control electrode is preposition, can reduce the electromagnetic signal strength of time writer, thereby reduce power consumption, also can reduce electromagnetic signal to the impact of display panel; And, because the metal bridge with the first electromagnetism touch-control electrode and bridge joint capacitance touching control drive electrode arranges with layer, can reduce the thickness of whole module when realizing that electromagnetic touch-control and capacitance touching control combine, also save the production cost of whole module simultaneously.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. external hanging type touch module, the metal bridge of the described capacitance touching control drive electrode that the capacitance touching control drive electrode that comprises the capacitance touching control induction electrode, insulate with described capacitance touching control induction electrode and intersect and put and bridge joint are adjacent, it is characterized in that, also comprise:
With described metal bridge insulation and with layer first an electromagnetism touch-control electrode that arranges;
With described the first electromagnetism touch-control electrode insulation and intersect and the second electromagnetism touch-control electrode of putting.
2. external hanging type touch module as claimed in claim 1, is characterized in that, in the interval region of each described the first electromagnetism touch-control electrode between the adjacent metal bridge.
3. external hanging type touch module as claimed in claim 1, is characterized in that, described the first electromagnetism touch-control electrode is vertical with described the second electromagnetism touch-control electrode antarafacial.
4. external hanging type touch module as claimed in claim 1, is characterized in that, the spacing between adjacent described the first electromagnetism touch-control electrode is identical with spacing between adjacent described the second electromagnetism touch-control electrode.
5. external hanging type touch module as claimed in claim 1, is characterized in that, described capacitance touching control drive electrode and described capacitance touching control induction electrode arrange with layer.
6. external hanging type touch module as described in claim 1-5 any one, it is characterized in that, described the first electromagnetism touch-control electrode is metal electrode, and described the second electromagnetism touch-control electrode, described capacitance touching control drive electrode and described capacitance touching control induction electrode are the ITO electrode.
7. external hanging type touch module as claimed in claim 6, is characterized in that, described the first electromagnetism touch-control electrode and described metal bridge are arranged at the bottom of described external hanging type touch module.
8. external hanging type touch module as described in claim 1-5 any one, is characterized in that, also comprises: the polaroid that is attached at described external hanging type touch module top layer.
9. a touch control display apparatus, comprise display device and the touch module that is arranged at described display device top, it is characterized in that, described touch module is the described external hanging type touch module of claim 1-8 any one.
10. touch control display apparatus as claimed in claim 9, is characterized in that, described display device is liquid crystal display LCD, organic electroluminescent OLED, plasma P DP or CRT display device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220591723 CN202976043U (en) | 2012-11-09 | 2012-11-09 | Externally mounted touch-control module and touch-control display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220591723 CN202976043U (en) | 2012-11-09 | 2012-11-09 | Externally mounted touch-control module and touch-control display device |
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| CN202976043U true CN202976043U (en) | 2013-06-05 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216592A (en) * | 2014-09-17 | 2014-12-17 | 上海天马微电子有限公司 | Touch screen and driving method thereof |
| WO2016045240A1 (en) * | 2014-09-28 | 2016-03-31 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method for same, driving method therefor, and touch display device |
| US20170269731A1 (en) * | 2015-09-25 | 2017-09-21 | Boe Technology Group Co., Ltd. | Electromagnetic capacitive touch screen |
| CN107977118A (en) * | 2016-10-21 | 2018-05-01 | 苏州今园科技创业孵化管理有限公司 | The production method of capacitance electromagnetic touch display device |
| CN109683369A (en) * | 2019-01-15 | 2019-04-26 | 惠州市华星光电技术有限公司 | A kind of capacitance touching control liquid crystal display panel and its display device |
| CN110109567A (en) * | 2019-04-24 | 2019-08-09 | 武汉华星光电半导体显示技术有限公司 | The production method of Trackpad, touch control display and Trackpad |
-
2012
- 2012-11-09 CN CN 201220591723 patent/CN202976043U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216592A (en) * | 2014-09-17 | 2014-12-17 | 上海天马微电子有限公司 | Touch screen and driving method thereof |
| CN104216592B (en) * | 2014-09-17 | 2017-12-26 | 上海天马微电子有限公司 | Touch screen and driving method thereof |
| WO2016045240A1 (en) * | 2014-09-28 | 2016-03-31 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method for same, driving method therefor, and touch display device |
| US9690435B2 (en) | 2014-09-28 | 2017-06-27 | Boe Technology Group Co., Ltd. | Touch display panel and method for manufacturing and driving the same and touch display device |
| US20170269731A1 (en) * | 2015-09-25 | 2017-09-21 | Boe Technology Group Co., Ltd. | Electromagnetic capacitive touch screen |
| US10664106B2 (en) * | 2015-09-25 | 2020-05-26 | Boe Technology Group Co., Ltd. | Electromagnetic capacitive touch screen including a capacitive module and an electromagnetic module located on a same layer |
| CN107977118A (en) * | 2016-10-21 | 2018-05-01 | 苏州今园科技创业孵化管理有限公司 | The production method of capacitance electromagnetic touch display device |
| CN109683369A (en) * | 2019-01-15 | 2019-04-26 | 惠州市华星光电技术有限公司 | A kind of capacitance touching control liquid crystal display panel and its display device |
| CN110109567A (en) * | 2019-04-24 | 2019-08-09 | 武汉华星光电半导体显示技术有限公司 | The production method of Trackpad, touch control display and Trackpad |
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Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150707 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150707 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20150707 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Patentee after: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20130605 |