CN103729101A - Externally-embedded-type capacitive touch screen - Google Patents
Externally-embedded-type capacitive touch screen Download PDFInfo
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- CN103729101A CN103729101A CN201310686064.7A CN201310686064A CN103729101A CN 103729101 A CN103729101 A CN 103729101A CN 201310686064 A CN201310686064 A CN 201310686064A CN 103729101 A CN103729101 A CN 103729101A
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Abstract
An embodiment of the invention discloses an externally-embedded-type capacitive touch screen which comprises a display screen and a cover plate. The display screen and the cover plate are bonded together through an optical double-face adhesive tape, the display screen is mainly composed of a liquid crystal panel which comprises thin film transistor glass, a liquid crystal unit, color filter glass and an electroconductive sensor, and the electroconductive sensor is arranged on the upper surface of the color filter glass. A touch element is directly made on the surface of the upper portion of the color filter glass in the liquid crystal panel, so that compared with existing capacitive touch screens, the externally-embedded-type capacitive touch screen has the advantages that one bonding process is reduced, so that raw material and operation cost is reduced, and total thickness and weight of the externally-embedded-type capacitive touch screen are reduced. After departing from the display screen, a light source only passes through two transparent materials including the optical double-face adhesive tape and the cover plate, so that compared with the existing capacitive touch screens, the externally-embedded-type capacitive touch screen has the advantage that light transmittance is improved substantially.
Description
Technical field
The present invention relates to capacitive touch screen field, relate in particular to a kind of externally embedded type capacitive touch screen.
Background technology
Touch screen is that wherein capacitance type touch control screen is one the most frequently used in touch screen for the compound touch-screen on the electronic products such as mobile phone, e-book, digital camera.
Capacitance type touch control screen is to utilize the electric current induction of human body to carry out work.Capacitance type touch control screen is four layers of compound glass screen normally, when user's finger touch is on capacitance type touch control screen, due to people's bulk electric field, user and capacitance touching control screen surfaces form with a coupling capacitance (for high-frequency current, electric capacity can be considered as conductor), so finger siphons away a very little electric current from the touch point of capacitance touching control screen surfaces, this electric current divides in the electrode four jiaos from capacitance type touch control screen and flows out.The electric current of these four electrodes of flowing through is directly proportional to the distance of four jiaos to finger, and controller by the accurate Calculation to these four current ratios, draws the position of touch point.
With reference to figure 1, existing capacitance type touch control screen generally includes following chief component element: the nano indium tin metal oxide ITO sensor 13 that has plated indium tin metal oxide (ITO, Indium Tin Oxides) pattern on glass baseplate; The cover plate 11(Cover Lens that ITO sensor 13 is shielded); Optics double faced adhesive tape 12 for bonding ITO sensor 13 with cover plate 11; For calculating touch point return to the flexible PCB 16 of processor, and for showing the display screen 15 of image, and for bonding ITO sensor 13 the optics double faced adhesive tape 14 with display screen 15.Existing capacitance type touch control screen technology light source sends from display screen 15, by optics double faced adhesive tape 14, ITO sensor 13, optics double faced adhesive tape 12 and 11 4 kinds of transparent materials of cover plate, light source, through absorbing layer by layer and a refraction meeting loss part, has reduced the transmittance of product.ITO sensor 13 is bonding with cover plate 11 use optics double faced adhesive tapes 12 simultaneously, and easily between produces bubble, and yields is lower, has reduced production capacity, has increased the cost of raw material and product weight.
The patent No. is that the Chinese invention patent of CN102681741A discloses a kind of individual layer film Film structure capacitive touch screen, comprising: be positioned at the bottom, for showing the display screen of image; Be positioned at the superiors, for the protection of the cover plate Cover Lens of nano indium tin metal oxide ITO sensor; ITO sensor is between described display screen and Cover Lens, for sensing touch point; Described ITO sensor comprises two-layer, an ITO layer be by printing etch process, the Film that is coated with whole ITO is processed into specific ITO
The ITO Film of figure; The 2nd ITO layer is the specific ITO graph layer plating towards a side of described display screen at Cover Lens.Described capacitance type touch control screen light source sends through absorbing layer by layer and refraction meeting loss part energy from display screen, has reduced the transmittance of product.ITO sensor and Cover Lens optics adhered by double sided plaster simultaneously, easily between produces bubble, and yields is lower, has reduced production capacity, has increased the cost of raw material and product weight.
The patent No. is that the Chinese utility model patent of CN102722302A discloses the two-sided ITO structure capacitive of a kind of individual layer Film touch screen, comprise the display screen for showing image, also comprise: be arranged on described display screen, for the nano indium tin metal oxide ITO sensor of sensing touch point, described ITO sensor is by printing etching or Radium art, at Film upper and lower surface, is respectively coated with the ITO Film that one deck is processed into specific ITO figure.Described ITO covers disposed on sensor is useful on the cover plate Cover Lens of the described ITO sensor of protection; Together with described Cover Lens passes through optics adhered by double sided plaster with ITO sensor.Described capacitance type touch control screen light source sends through absorbing layer by layer and refraction meeting loss part energy from display screen, has reduced the transmittance of product.ITO sensor and Cover Lens optics adhered by double sided plaster simultaneously, easily between produces bubble, and yields is lower, has reduced production capacity, has increased the cost of raw material and product weight.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, a kind of externally embedded type capacitive touch screen is provided, and can increase the transmittance of product, alleviates thickness and the weight of product simultaneously.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of externally embedded type capacitive touch screen, comprising:
Be positioned at the bottom, for showing the display screen of image, mainly liquid crystal panel, consist of, and for the protection of the cover plate of described display screen, described display screen and cover plate are by together with optics adhered by double sided plaster.Described liquid crystal panel comprises membrane transistor glass, for changing liquid crystal cells, the colorized optical filtering sheet glass that contains touch control component and the conductive sensor for sensing touch point of polarized condition of light, described conductive sensor is arranged at the upper surface of described colorized optical filtering sheet glass.
Wherein, described externally embedded type capacitive touch screen also comprises: horizontal polaroid and vertical polaroid.Described horizontal polaroid is arranged on described colored filter surface on glass; Described vertical polaroid is arranged on described membrane transistor lower glass surface.
Wherein, described cover plate is made by tempered glass.
Wherein, described display screen is LCDs.
The invention has the beneficial effects as follows: externally embedded type capacitive touch screen provided by the present invention, that touch control component is directly made in to colored filter glass upper face in liquid crystal panel, compare existing capacitive touch screen and reduced the operation of laminating together, not only reduce starting material and operating cost, and alleviated thickness and the weight of overall product.
Externally embedded type capacitive touch screen provided by the invention, directly passes through optics adhered by double sided plaster between display screen and cover plate.Save cover plate and ITO sensor bonding process, reduced the generation of bubble, improved production production capacity and product yield.
Externally embedded type capacitive touch screen provided by the invention, light source is from display screen sends, only through optics double faced adhesive tape and two kinds of transparent materials of cover plate.Compare existing capacitive touch screen, transmittance significantly improves.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is existing capacitive touch screen structural representation;
Fig. 2 is the externally embedded type capacitive touch screen structural representation that the embodiment of the present invention provides;
Fig. 3 is the externally embedded type capacitive touch screen liquid crystal panel structure decomposing schematic representation that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
Referring to figure, 2 and Fig. 3, a kind of externally embedded type capacitive touch screen, comprises and is positioned at the bottom, for showing the display screen 21 of image, and for the protection of the cover plate 23 of described display screen, described display screen 21 is bonded together by optics double faced adhesive tape 22 with cover plate 23.
Described display screen 21 mainly consists of liquid crystal panel, described liquid crystal panel comprises membrane transistor glass 215, for changing liquid crystal cells 214, the colorized optical filtering sheet glass 213 that contains touch control component and the conductive sensor 212 for sensing touch point of polarized condition of light, described conductive sensor 212 is arranged at the upper surface of described colorized optical filtering sheet glass 213.
In addition, described externally embedded type capacitive touch screen also comprises: horizontal polaroid 211 and vertical polaroid 216.Described horizontal polaroid 211 is arranged on described colorized optical filtering sheet glass 213 upper surfaces; Described vertical polaroid 216 is arranged on described membrane transistor glass 215 lower surfaces.
The present embodiment at least has the following advantages:
1) cost of raw material reduces.Existing capacitive touch screen technology is that cover plate 11 fits together with ITO sensor 13 by optics double faced adhesive tape 12.The present embodiment externally embedded type capacitive touch screen, is that touch control component is directly made in to colorized optical filtering sheet glass 213 upper faces in liquid crystal panel, compares existing capacitive touch screen and has reduced one deck sensor substrate and one deck optics double faced adhesive tape.
2) overall product thickness and weight reducing.The product structure of existing capacitive touch screen is: cover plate 11+ optics double faced adhesive tape 12+ ITO sensor 13+ optics double faced adhesive tape 14+ display screen 15.The product structure of the present embodiment externally embedded type capacitive touch screen is: cover plate 23+ optics double faced adhesive tape 22+ display screen 21.Comparatively speaking, in overall product thickness and weight, all have superiority.
3) improve production capacity, reduced flow chart.Existing capacitive touch screen is when fitting cover plate 11 and ITO sensor 13 by optics double faced adhesive tape 12, easily between produces bubble, and yields is lower.The present embodiment externally embedded type capacitive touch screen, directly bonding by optics double faced adhesive tape 22 between display screen 21 and cover plate 23.Save cover plate and ITO sensor bonding process, reduced the generation of bubble, improved production production capacity and product yield.
4) improve properties of product, increased the transmittance of product.Existing capacitance type touch control screen technology light source sends from display screen 15, and by optics double faced adhesive tape 14, ITO sensor 13, optics double faced adhesive tape 12 and 11 4 kinds of transparent materials of cover plate, light source is through absorbing layer by layer and a refraction meeting loss part.The present embodiment externally embedded type capacitive touch screen, light source is from display screen 21 sends, and only, through optics double faced adhesive tape 22 and 23 two kinds of transparent materials of cover plate, transmittance significantly improves.
It should be noted that; what the present invention described is a kind of product form of externally embedded type capacitive touch screen; other meets the product of structure of the present invention; even if material, device name, outward appearance, device are put order etc., not affect the factor of product performance not identical, still belongs to the scope of protection of the invention.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. an externally embedded type capacitive touch screen, comprises and is positioned at the bottom, for showing the display screen of image and the cover plate for the protection of described display screen; It is characterized in that, the structure of described display comprises liquid crystal panel, described liquid crystal panel comprises membrane transistor glass, for changing liquid crystal cells, the colorized optical filtering sheet glass that contains touch control component and the conductive sensor for sensing touch point of polarized condition of light, described conductive sensor is arranged at the upper surface of described colorized optical filtering sheet glass.
2. externally embedded type capacitive touch screen as claimed in claim 1, is characterized in that, together with described display screen passes through optics adhered by double sided plaster with described cover plate.
3. externally embedded type capacitive touch screen as claimed in claim 1, is characterized in that, horizontal polaroid is arranged on described colored filter surface on glass; Vertical polaroid is arranged on described membrane transistor lower glass surface.
4. externally embedded type capacitive touch screen as claimed in claim 1 or 2, is characterized in that, described cover plate is made by tempered glass.
5. externally embedded type capacitive touch screen as claimed in claim 1 or 2, is characterized in that, described display screen is LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310686064.7A CN103729101A (en) | 2013-12-16 | 2013-12-16 | Externally-embedded-type capacitive touch screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310686064.7A CN103729101A (en) | 2013-12-16 | 2013-12-16 | Externally-embedded-type capacitive touch screen |
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| CN103729101A true CN103729101A (en) | 2014-04-16 |
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| CN201310686064.7A Pending CN103729101A (en) | 2013-12-16 | 2013-12-16 | Externally-embedded-type capacitive touch screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446506A (en) * | 2014-06-19 | 2016-03-30 | 宸鸿科技(厦门)有限公司 | Touch control display device |
| CN107402683A (en) * | 2017-08-31 | 2017-11-28 | 河源中光电通讯技术有限公司 | A kind of capacitance touching control display module and its manufacture method |
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| CN101853106A (en) * | 2010-06-18 | 2010-10-06 | 友达光电股份有限公司 | Touch control display |
| CN102722302A (en) * | 2012-05-29 | 2012-10-10 | 格林精密部件（惠州）有限公司 | Capacitive touch-control screen with single-layer Film double-faced ITO (indium tin oxide) structure |
| CN102799332A (en) * | 2012-09-04 | 2012-11-28 | 北京集创北方科技有限公司 | Embedded single-layer capacitive touch screen |
| CN202615364U (en) * | 2012-04-26 | 2012-12-19 | 格林精密部件（惠州）有限公司 | In-cell capacitor touch screen |
| CN103092450A (en) * | 2013-01-28 | 2013-05-08 | 北京京东方光电科技有限公司 | Touch screen and manufacturing method thereof and display device |
| CN203596006U (en) * | 2013-12-16 | 2014-05-14 | 格林精密部件（惠州）有限公司 | Externally-embedded type capacitance touch screen |
| EP2746906A1 (en) * | 2012-12-21 | 2014-06-25 | LG Display Co., Ltd. | Touch panel and display device using the same |
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2013
- 2013-12-16 CN CN201310686064.7A patent/CN103729101A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101853106A (en) * | 2010-06-18 | 2010-10-06 | 友达光电股份有限公司 | Touch control display |
| CN202615364U (en) * | 2012-04-26 | 2012-12-19 | 格林精密部件（惠州）有限公司 | In-cell capacitor touch screen |
| CN102722302A (en) * | 2012-05-29 | 2012-10-10 | 格林精密部件（惠州）有限公司 | Capacitive touch-control screen with single-layer Film double-faced ITO (indium tin oxide) structure |
| CN102799332A (en) * | 2012-09-04 | 2012-11-28 | 北京集创北方科技有限公司 | Embedded single-layer capacitive touch screen |
| EP2746906A1 (en) * | 2012-12-21 | 2014-06-25 | LG Display Co., Ltd. | Touch panel and display device using the same |
| CN103092450A (en) * | 2013-01-28 | 2013-05-08 | 北京京东方光电科技有限公司 | Touch screen and manufacturing method thereof and display device |
| CN203596006U (en) * | 2013-12-16 | 2014-05-14 | 格林精密部件（惠州）有限公司 | Externally-embedded type capacitance touch screen |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446506A (en) * | 2014-06-19 | 2016-03-30 | 宸鸿科技(厦门)有限公司 | Touch control display device |
| CN105446506B (en) * | 2014-06-19 | 2018-10-26 | 宸鸿科技(厦门)有限公司 | Touch control display apparatus |
| CN107402683A (en) * | 2017-08-31 | 2017-11-28 | 河源中光电通讯技术有限公司 | A kind of capacitance touching control display module and its manufacture method |
| CN107402683B (en) * | 2017-08-31 | 2020-05-26 | 河源中光电通讯技术有限公司 | Capacitive touch display assembly and manufacturing method thereof |
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Address after: 516025 Huizhou City, Guangdong Province, the three digital Industrial Park Applicant after: Guangdong Green precision parts Limited by Share Ltd Address before: Three Huicheng Guangdong District, Huizhou City, the number of Digital Industrial Park Applicant before: Green Precision Components (Huizhou) Co. Ltd. |
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Application publication date: 20140416 |
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