CN103376960A - Capacitive touch screen applied to household appliances - Google Patents
Capacitive touch screen applied to household appliances Download PDFInfo
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- CN103376960A CN103376960A CN2012101242371A CN201210124237A CN103376960A CN 103376960 A CN103376960 A CN 103376960A CN 2012101242371 A CN2012101242371 A CN 2012101242371A CN 201210124237 A CN201210124237 A CN 201210124237A CN 103376960 A CN103376960 A CN 103376960A
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- capacitive touch
- touch screen
- electrodes
- virtual key
- inducting
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Abstract
The invention discloses a capacitive touch screen applied to household appliances. The capacitive touch screen applied to the household appliances comprises a display screen, a transparent or translucent conducting layer and a cover plate; the display screen is provided with a plurality of virtual key areas; the transparent or translucent conducting layer which covers above the display screen comprises a plurality of inducting electrodes which are in matrix arrangement; the cover plate is arranged above the conducting layer; the inducting electrodes are connected with a capacitive touch control chip through key connecting wires which are distributed between the inducting electrodes or around the conducting layer; the thickness of the cover plate is 2 to 8 mm; an insulating isolating area is formed between the two adjacent inducting electrodes; the full area of at least one inducting electrode is located inside the virtual key areas or the partial area of the plurality of inducting electrode is located inside the virtual key areas to correspond to every virtual key area. The capacitive touch screen applied to the household appliances has the advantages of reducing the number of the inducting electrodes, accordingly being beneficial to cost reduction and accordingly enabling the capacitive touch screen to be utilized in the high temperature environment due to the fact that the inducting electrodes can penetrate a thick heat-resistant panel.
Description
Technical field
The present invention relates to field of household appliances, relate in particular to a kind of capacitive touch screen that is applied in the household electrical appliances.
Background technology
The capacitive touch screen of prior art is described in conjunction with Fig. 6.The capacitance plate of prior art has the ITO electrode of arranging in length and breadth, and these electrodes are processed the capacitance touch control chip by button connecting line and induction electrode and are connected.The resolution of the touch-screen of prior art is very high, between the electrode not if the isolated area of very narrow insulation is set.This class touch-screen is applied on the electronic consumer products usually, but the thickness that sees through glass or medium of its use generally only has 1 millimeter, the too thick sensitivity that then can affect inductive layer.In addition, the price of this touch-screen is very high and thermotolerance is relatively poor, can not at the higher home electric of temperature, for example use in the micro-wave oven.Therefore, they are not high to resolution requirement at some, but cost performance requires all very high household electrical appliances application can not widespread use.
Summary of the invention
The technical problem to be solved in the present invention is, and is higher for the capacitive touch screen cost of prior art, and can not in the extensive defective of using in household electrical appliances, provide a kind of and can satisfy the household electrical appliances touch-screen to capacitive touch screen resolution requirement, lower-cost.
The technical solution adopted for the present invention to solve the technical problems is: a kind of capacitive touch screen that is applied in the household electrical appliances is provided, comprise the display screen that is provided with a plurality of virtual keys district, cover the transparent or semitransparent conductive layer display screen top, that have a plurality of induction electrodes of matrix arrangement, be arranged on the cover plate of conductive layer top, induction electrode by be distributed between each induction electrode or conductive layer around the button connecting line be connected with the capacitance touch control chip, the thickness of cover plate is 2～8 millimeters; The isolated area that has insulation between adjacent two induction electrodes; Corresponding to each virtual key district, have at least the Zone Full of an induction electrode to be positioned at described virtual key district or to have the subregion of a plurality of induction electrodes to be positioned at the virtual key district.
In the capacitive touch screen that is applied in the household electrical appliances of the present invention, corresponding to each virtual key district, there are 2～4 induction electrodes to be positioned at the virtual key district.
In the capacitive touch screen that is applied in the household electrical appliances of the present invention, the width of the isolated area between adjacent two induction electrodes is 0.3～1.5 centimetre.
In the capacitive touch screen that is applied in the household electrical appliances of the present invention, induction electrode rectangle, rhombus, circle or triangle.
In the capacitive touch screen that is applied in the household electrical appliances of the present invention, display screen is TFT or stn liquid crystal display screen.
In the capacitive touch screen that is applied in the household electrical appliances of the present invention, cover plate is tempered glass or the organic glass of 2～8 millimeters thick.
The advantage that the capacitive touch screen that is applied in the household electrical appliances of the present invention has comprises: isolated area is set between electrode, thereby has reduced the quantity of induction electrode, be conducive to reduce cost, enable in the field of household appliances large-scale promotion; Induction electrode can see through thicker heat-resisting panel, uses thereby make in can the temperature higher environment of this touch-screen, thereby is conducive to be applied to the higher household electrical appliance of working temperature.
Description of drawings
Below in conjunction with drawings and Examples the capacitive touch screen that the present invention is applied in the household electrical appliances is described further, in the accompanying drawing:
Fig. 1 is the mounting structure synoptic diagram that the present invention is applied to the capacitive touch screen in the household electrical appliances;
Fig. 2 is the structural representation that the present invention is applied to the display screen of the capacitive touch screen in the household electrical appliances;
Fig. 3 is the structural representation that the present invention is applied to the conductive layer of the capacitive touch screen in the household electrical appliances;
Fig. 4 is conductive laminate that the present invention is applied to an embodiment of the capacitive touch screen in the household electrical appliances intention when being put on the display screen;
Fig. 5 is conductive laminate that the present invention is applied to another embodiment of the capacitive touch screen in the household electrical appliances intention when being put on the display screen;
Fig. 6 is the structural representation of the capacitive touch screen of prior art.
Embodiment
Illustrate that in conjunction with Fig. 1 to Fig. 5 the present invention is applied to the structure of the capacitive touch screen in the household electrical appliances, method for designing and principle of work.The one-piece construction of this touch-screen is described in conjunction with Fig. 1, comprise and be positioned at undermost display screen 1, cover the conductive layer 2 on the LCDs, and be covered in cover plate 3 above the conductive layer 2, wherein display screen 1 can be super torsional mode nematic (STN), the LCDs of the types such as torsional mode nematic (TN) or thin-film transistors type (TFT), conductive layer 2 is for being electroplate with the glass plate of induction electrode (matrix press-key), for example, the plate etching that employing has the ITO coating goes out button, preferably, conductive layer is transparent or semitransparent, and cover plate 3 is tempered glass or the acrylic panel of 2～8 millimeters thick.
Display screen 1 is provided with a plurality of virtual keys district (soft-key button), as shown in Figure 2, among this embodiment, be provided with a plurality of virtual keys districts 11 such as traditional heating, Fast Heating, top heating, bottom-heated and startup on the display screen, different from touch-screens such as mobile phone, panel computer, reader or navigating instruments is, the required button of household electrical appliances is less, and determines at its home position of design initial stage.So can be according to the arrangement mode of the induction electrode on the virtual key district design conductive layer of substantially having determined, so that the combination of the induction electrode by more fixed point realizes the control to household electrical appliances, thereby save cost.For example Fig. 3 has provided a kind of conductive layer that is provided with the matrix form button, etching has induction electrode 21 on this conductive layer, the isolated area 22 that has insulation between the adjacent induction electrode, induction electrode can sense outer touch, the pressing operation of glass cover-plate more than 4 millimeters, so can adopt thicker glass, pyroceram to make capacitance plate, this capacitance plate can be applied to the household appliances field.Corresponding to each described virtual key district, at least one induction electrode 21 (matrix press-key) is positioned at virtual key, for example induction electrode 211～213 all is positioned at this virtual key of traditional heating, the part of induction electrode 214 is positioned at this virtual key district, the connected mode of 211～214 button connecting line and capacitance touch control chip is set or adopts mode that software processes so that when wherein any one or several induction electrode were subject to touching, the capacitance touch control chip all can send the instruction of traditional heating.Equally, any one in touching induction electrode 242～244 or when several, the capacitance touch control chip all can send the startup command of system.It should be noted that in Fig. 4 the induced key among the figure is set to opaque in order to show the position relationship in induced key and virtual key district, in the product of reality, conductive layer comprises that the induction electrode coating is transparent or semitransparent.The design of virtual key of another kind of display screen and the design of the induction electrode on the corresponding conductive layer in Fig. 5, have been provided.As can be seen from the figure corresponding to each described virtual key district, major part in the induced key on the conductive layer is arranged in virtual key and goes, that is to say quantity that this layout can make induction electrode (matrix press-key) seldom, but can reach equally the purpose of control household electrical appliance by their combination.The width design of the isolated area of the insulation between the induction electrode is according to the size in virtual key district and user's finger size design, and being generally is 0.3 to 1.5cm, is preferably 0.5～1.2cm, more preferably 0.7～1.1cm.Adult's finger width is generally 1.0～2.0cm, and therefore when the width of isolated area was 0.7～1.1cm, where finger touch all can touch an induction electrode at least, thereby starts related command.In addition, a kind of design of induction electrode array can be used from a plurality of display screens with different interfaces, in general, when this is provided with the conductive layer of induction electrode array and any one display screen and is used, should guarantee to have at least induction electrode parts whole or a plurality of induction electrodes to be positioned at the virtual key district, preferably, should there be 2～4 induction electrodes to be arranged in the virtual key district, reduce induction electrode quantity and be conducive to reduce design, manufacturing cost, simultaneously the capacitance touch control chip is also simpler to the control of the induction electrode that is arranged in the virtual key district.In addition
Need to prove, although the induction electrode that the present invention provides be shaped as rectangle, those skilled in the art can design according to actual conditions the induction electrode of other shapes, for example triangle, rhombus or other figures that is comprised of closed curve.In addition, the design of the button connecting line of each electrode also can design according to actual conditions.For example adopt etching or flexible circuit board that induction electrode is connected with the capacitance touch control chip, although button connecting line and control chip do not show in the accompanying drawings that those skilled in the art can access technical scheme of the present invention according to the design philosophy of its knowledge and button disclosed by the invention.
In a word, the present invention is based on the required resolution of household electrical appliance not to be needed very high, and require very high and resistant to elevated temperatures this technical background of demand of cost performance, and the button of household electrical appliance is less and more fixing, design a kind of less induction electrode that has, control the specific operation of household electrical appliances by the combination between them, the position of the button that in a plurality of interfaces, will arrange according to same display screen, make an integral layout, form an induction electrode matrix (matrix press-key), thereby reduce the quantity of induction electrode as far as possible, reduced the reliability of design cost and recognition by pressing keys.Therefore, compare with the high-resolution capacitive touch screen of prior art, it is low that it has a cost, can see through thicker glass cover-plate, thereby the advantage that can under higher temperature, work, and with the array that designs a kind of induction electrode for each interface, reduced the Design and manufacture cost.
The present invention is described by some embodiment, and those skilled in the art know, in the situation that does not break away from the spirit and scope of the present invention, can carry out various changes or equivalence replacement to these features and embodiment.In addition, under instruction of the present invention, can make amendment to adapt to concrete situation and material to these features and embodiment and can not break away from the spirit and scope of the present invention.Therefore, the present invention is not subjected to the restriction of specific embodiment disclosed herein, and all interior embodiment of claim scope that fall into the application belong to protection scope of the present invention.
Claims (6)
- A method used in the appliance of the capacitive touch screen; including a plurality of virtual keys area (11) of the display (1); covering said display screen (1) above, a plurality of sensors arranged in a matrix electrodes (21) of transparent or translucent conductive layer (2); disposed on said conductive layer (2) at the top of the cover (3); said induction electrode (21) via distributed in the conductive layer or between the sensing electrodes around the cable and capacitive touch buttons control chip connection; it is characterized in thatThe thickness of described cover plate (3) is 2～8 millimeters;The isolated area (22) that has insulation between adjacent two described induction electrodes (21);Corresponding to each described virtual key district (11), have at least the Zone Full of a described induction electrode (21) to be positioned at described virtual key district (11) or to have the subregion of a plurality of described induction electrodes to be positioned at described virtual key district (11).
- 2. the capacitive touch screen that is applied in the household electrical appliances according to claim 1 is characterized in that, corresponding to each described virtual key district (11), has 2～4 described induction electrodes (21) to be positioned at described virtual key district (11).
- 3. the capacitive touch screen that is applied in the household electrical appliances according to claim 2 is characterized in that, the width of the isolated area between adjacent two described induction electrodes (21) is 0.3～1.5 centimetre.
- 4. the capacitive touch screen that is applied in the household electrical appliances according to claim 1 is characterized in that, described induction electrode (21) is rectangle, rhombus, circle or triangle.
- 5. the capacitive touch screen that is applied in the household electrical appliances according to claim 4 is characterized in that, described display screen (1) is TFT or stn liquid crystal display screen.
- 6. each described capacitive touch screen that is applied in the household electrical appliances is characterized in that according to claim 1～5, and described cover plate (3) is tempered glass or the organic glass of 2～8 millimeters thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124237.1A CN103376960B (en) | 2012-04-25 | 2012-04-25 | A kind of capacitive touch screen being applied in household electrical appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124237.1A CN103376960B (en) | 2012-04-25 | 2012-04-25 | A kind of capacitive touch screen being applied in household electrical appliances |
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| Publication Number | Publication Date |
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| CN103376960A true CN103376960A (en) | 2013-10-30 |
| CN103376960B CN103376960B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210124237.1A Active CN103376960B (en) | 2012-04-25 | 2012-04-25 | A kind of capacitive touch screen being applied in household electrical appliances |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204676A (en) * | 2014-06-27 | 2015-12-30 | 联想(北京)有限公司 | Input method and electronic device |
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| CN201570008U (en) * | 2009-12-23 | 2010-09-01 | 珠海格力电器股份有限公司 | Touch panel of household electric appliance |
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| US8907938B2 (en) * | 2009-05-28 | 2014-12-09 | Sharp Kabushiki Kaisha | Liquid crystal display device |
| CN102270074B (en) * | 2010-06-02 | 2016-02-17 | 群康科技(深圳)有限公司 | Electrode structure and manufacture method thereof |
| CN202058128U (en) * | 2010-12-29 | 2011-11-30 | 广东中显科技有限公司 | Touch screen |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060150115A1 (en) * | 2004-12-31 | 2006-07-06 | Samsung Electronics Co., Ltd. | Apparatus and method for providing graphic user interface composed of plural columns |
| US20100042950A1 (en) * | 2008-08-14 | 2010-02-18 | HONG FU JIN PRECISION INDUSTRY ShenZhen) CO., LTD. | Electronic device equipped with touch screen display and control method thereof |
| CN201374275Y (en) * | 2008-12-22 | 2009-12-30 | 美的集团有限公司 | Touch screen panel |
| CN201570008U (en) * | 2009-12-23 | 2010-09-01 | 珠海格力电器股份有限公司 | Touch panel of household electric appliance |
| CN201974789U (en) * | 2010-08-12 | 2011-09-14 | 浙江苏泊尔家电制造有限公司 | Touch screen for kitchen electrical appliances |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105204676A (en) * | 2014-06-27 | 2015-12-30 | 联想(北京)有限公司 | Input method and electronic device |
| CN105204676B (en) * | 2014-06-27 | 2018-08-07 | 联想(北京)有限公司 | Input method and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN103376960B (en) | 2016-08-03 |
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Inventor after: Xiao Feng Inventor after: Wu Yongqiang Inventor before: Xiao Feng |
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