CN105468219A - Capacitive touch screen with cover plate and flexible circuit board coated with reflecting coatings respectively - Google Patents
Capacitive touch screen with cover plate and flexible circuit board coated with reflecting coatings respectively Download PDFInfo
- Publication number
- CN105468219A CN105468219A CN201511031353.9A CN201511031353A CN105468219A CN 105468219 A CN105468219 A CN 105468219A CN 201511031353 A CN201511031353 A CN 201511031353A CN 105468219 A CN105468219 A CN 105468219A
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- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- cover plate
- reflectance coating
- touch screen
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a capacitive touch screen with a cover plate and a flexible circuit board coated with reflecting coatings respectively. The cover plate, a touch screen function piece, a light guide plate and the touch screen flexible circuit board which are included in the capacitive touch screen are sequentially stacked from top to bottom. A light-emitting source and a key light source flexible circuit board used for controlling the light-emitting source are arranged on one lateral side of the light guide plate. The first reflecting coating is arranged on the lower surface of the cover plate. The second reflecting coating is arranged on the upper surface of the touch screen flexible circuit board. The first reflecting coating and the light guide plate are arranged in the forward projection direction of the second reflecting coating. A light-transmitting area is arranged on the first reflecting coating. The touch screen flexible circuit board is arranged below the light guide plate, the second reflecting coating is arranged on the upper surface of the touch screen flexible circuit board, the first reflecting coating is arranged on the lower surface of the cover plate, and therefore a first reflecting layer and a second reflecting layer in a key light source assembly of a conventional touch screen are omitted, the assembling process is also reduced, cost is reduced, and the yield and efficiency of batched production are improved.
Description
Technical field
The present invention relates to the capacitive touch screen a kind of cover plate and flexible circuit board all having reflectance coating, particularly relate to a kind of capacitive touch screen of integrating keys back light source structure, belong to touch screen technology field.
Background technology
Since Iphone comes out, its magnificent outward appearance, novel mode of operation and comfortable feel, capacitive touch screen obtains client's accreditation, as mobile phone, media player, navigational system, digital camera, digital album (digital photo frame), PDA, game station, display, electrical equipment control, Medical Devices etc. daily life every field all can be seen.But along with application universal of capacitive touch screen, under the guiding of personalized and trend, conventional capacitive-type touch-screen has not had the features of novelty that can attract user's special concern too much.
The key set light source assembly of conventional capacitive-type touch-screen, as single component, is combined on mainboard, or is combined in liquid crystal module, or on the touchscreen attached.As shown in Figure 1, conventional capacitive-type touch-screen, comprise cover plate 2, touch-screen flexible circuit board 1, touch screen function sheet 3, first reflection horizon 4, light guide plate 5 and the second reflection horizon 6, described cover plate 2, touch-screen flexible circuit board 1, touch screen function sheet 3, first reflection horizon 4, light guide plate 5 and the second reflection horizon 6 stack gradually from top to bottom, light emitting source 7 and the key set light source flexible circuit board 8 for controlling light emitting source 7 is provided with at a side of described light guide plate 5, wherein said key set light source flexible circuit board 8 is integrated with light emitting source control circuit, first reflection horizon 4 and the second reflection horizon 6 are the separate part in key set light source assembly, separate part causes manufacturing cost high, and increase assembling procedure, reduce yield and the efficiency of batch production.
Summary of the invention
The technical matters that the present invention solves is: in the key set light source assembly of existing conventional capacitive-type touch-screen, the second reflection horizon is as separate part, thus causes cost high, and increases assembling procedure, reduces yield and the efficiency of batch production.
In order to overcome the above problems, the invention provides a kind of technical scheme: the capacitive touch screen a kind of cover plate and flexible circuit board all having reflectance coating, comprise cover plate, touch-screen flexible circuit board, touch screen function sheet and light guide plate, described cover plate, touch screen function sheet, light guide plate and touch-screen flexible circuit board stack gradually from top to bottom, light emitting source and the key set light source flexible circuit board for controlling light emitting source is provided with at a side of described light guide plate, the lower surface of described cover plate is provided with the first reflectance coating, the upper surface of described touch-screen flexible circuit board is provided with the second reflectance coating, described first reflectance coating and light guide plate are placed in the second reflectance coating orthogonal projection direction, described first reflectance coating is provided with transmission region.
Further, described first reflectance coating is formed by printing white or light tone ink at cover plate lower surface; Described second reflectance coating is formed by printing white or light tone ink at the upper surface of touch-screen flexible circuit board.Take this mode to be easy to realize, and cost is low, and other modes and material can certainly be selected to have come the first reflectance coating and the second reflectance coating.
Further, described second reflectance coating orthogonal projection covers the first reflectance coating to the view field of cover plate lower surface.Take this structure mainly to ensure and, after being provided with the first reflectance coating, as far as possible the area of the second reflectance coating is greater than the first reflectance coating, to ensure the transmission region of enough light sources by the first reflectance coating.
Further, described key set light source flexible circuit board and touch-screen flexible circuit board become one.Take this technology, touch-screen assembling space and packaging technology step can be reduced on the one hand thus reduce production cost, disposable production flexible circuit board meets light source control and touches drived control on the other hand, and do not need separately Production design, reduce costs, even optimized can carry out integrated light source control circuit and touch Drive and Control Circuit, reducing the necessary components and parts required for circuit, realize Based Intelligent Control light emitting source.
Further, described light emitting source is LED light emitting diode.LED light emitting diode, power is little, luminous large, is convenient to control.
Compared with prior art, the invention has the beneficial effects as follows: by touch-screen flexible circuit board being placed in the below of light guide plate, and be provided with the second reflectance coating at touch-screen flexible circuit board upper surface, again the first reflectance coating is set at cover plate lower surface, thus the first reflection horizon decreased in the key set light source assembly of conventional touch screen and the second reflection horizon, decrease packaging technology, reduce cost, improve yield and the efficiency of batch production.
Accompanying drawing explanation
Attachedly Figure 1 shows that conventional capacitive-type touch screen structure schematic diagram;
Attachedly Figure 2 shows that touch-screen flexible circuit board in the present invention and key set light source flexible circuit board independently capacitive touch screen structure schematic diagram;
Attached Figure 3 shows that the touch-screen flexible circuit board in the present invention and key set light source flexible circuit board integrated after capacitive touch screen structure schematic diagram;
The attached flexible circuit board integrated morphology schematic diagram that Figure 4 shows that in the present invention;
In Fig. 2,1, touch-screen flexible circuit board 2, cover plate 3, touch screen function sheet 4-1, the first reflectance coating 5, light guide plate 66, second reflectance coating 7, light emitting source 8, key set light source flexible circuit board;
In Fig. 3,2, cover plate 3, touch screen function sheet 4-1, the first reflectance coating 5, light guide plate 66, second reflectance coating 7, light emitting source 9, flexible circuit board;
In Fig. 4,10, in touch-screen flexible circuit board 1 for driving the tandem circuit chip (IC) for driving touch-screen and key-press backlight source light emitting diode in the integrated circuit (IC) chip of touch-screen (IC) 100, flexible circuit board 9.
Embodiment
By reference to the accompanying drawings, the specific embodiment of the present invention is described;
As shown in Figure 1, a kind of cover plate and flexible circuit board all there is the capacitive touch screen of reflectance coating, comprise cover plate 2, touch-screen flexible circuit board 1, touch screen function sheet 3 and light guide plate 5, wherein, described touch screen function sheet 3 is bonded together by glue material by single or multiple lift electrode layer, electrode layer plates tin indium oxide over the transparent substrate, described cover plate 2 can be tempered glass, PC, the known various material such as PMMA, described touch-screen flexible circuit board 1 is integrated with the flexible circuit board touching driving circuit, more than be existing knowledge, the present invention improves and is, described cover plate 2, touch screen function sheet 3, light guide plate 5 and touch-screen flexible circuit board 1 stack gradually from top to bottom, light emitting source 7 and the key set light source flexible circuit board 8 for controlling light emitting source 7 is provided with at a side of described light guide plate 5, described key set light source flexible circuit board 8 is integrated with light emitting source control circuit, the lower surface of described cover plate 2 is provided with the first reflectance coating 4-1, the upper surface of described touch-screen flexible circuit board 1 is provided with the second reflectance coating 66, described first reflectance coating 4-1 and light guide plate 5 are placed in the second reflectance coating 66 orthogonal projection direction (directly over being alternatively), described first reflectance coating 4-1 is provided with transmission region.It should be noted that, transmission region is corresponding with the position, key area on cover plate 2, and transmission region is to make light enter key area, and generally, touch-screen cover plate is provided with three key areas, and corresponding with it, transmission region also has three.
Preferably, described first reflectance coating 4-1 is formed by printing white or light tone ink at cover plate 2 lower surface; Described second reflectance coating 66 is formed by printing white or light tone ink at the upper surface of touch-screen flexible circuit board 1.Take this mode to be easy to realize, and cost is low, and other modes and material can certainly be selected to have come the first reflectance coating and the second reflectance coating.
Preferably, described second reflectance coating 66 orthogonal projection covers the first reflectance coating 4 to the view field of cover plate 2 lower surface.Take this structure mainly to ensure and, after being provided with the first reflectance coating, as far as possible the area of the second reflectance coating is greater than the first reflectance coating, to ensure the transmission region of enough light sources by the first reflectance coating.
Preferably, as shown in Figure 3, preferably, described key set light source flexible circuit board 8 becomes one with touch-screen flexible circuit board 1, constitute a flexible circuit board 9, this flexible circuit board 9 uses the tandem circuit chip (IC) driving touch-screen and key-press backlight source light emitting diode; As Fig. 4 shows the integrated schematic diagram of flexible circuit board 9, wherein 10 is the integrated circuit (IC) chip (IC) for driving touch-screen in touch-screen flexible circuit board 1, and wherein 100 is the tandem circuit chip (IC) for driving touch-screen and key-press backlight source light emitting diode in flexible circuit board 9.Take this technology, touch-screen assembling space and packaging technology step can be reduced on the one hand thus reduce production cost, disposable production flexible circuit board meets light source control and touches drived control on the other hand, and do not need separately Production design, reduce costs, even optimized can carry out integrated light source control circuit and touch Drive and Control Circuit, reducing the necessary components and parts required for circuit, realize Based Intelligent Control light emitting source.
Preferably, described light emitting source 7 is LED light emitting diode.LED light emitting diode, power is little, luminous large, is convenient to control.
It is to be understood that above-mentioned embodiment has done more detailed text description to the thinking that relates to of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any combination not exceeding mentality of designing of the present invention; increase or amendment, all fall within the scope of protection of the present invention.
Claims (5)
1. a cover plate and flexible circuit board all there is the capacitive touch screen of reflectance coating, comprise cover plate, touch-screen flexible circuit board, touch screen function sheet and light guide plate, it is characterized in that, described cover plate, touch screen function sheet, light guide plate and touch-screen flexible circuit board stack gradually from top to bottom, light emitting source and the key set light source flexible circuit board for controlling light emitting source is provided with at a side of described light guide plate, the lower surface of described cover plate is provided with the first reflectance coating, the upper surface of described touch-screen flexible circuit board is provided with the second reflectance coating, described first reflectance coating and light guide plate are placed in the second reflectance coating orthogonal projection direction, described first reflectance coating is provided with transmission region.
2. a kind of cover plate as claimed in claim 1 and flexible circuit board all have the capacitive touch screen of reflectance coating, it is characterized in that, described first reflectance coating is formed by printing white or light tone ink at cover plate lower surface; Described second reflectance coating is formed by printing white or light tone ink at the upper surface of touch-screen flexible circuit board.
3. a kind of cover plate as described in claim 1 or 2 and flexible circuit board all have the capacitive touch screen of reflectance coating, it is characterized in that, described second reflectance coating orthogonal projection covers the first reflectance coating to the view field of cover plate lower surface.
4. a kind of cover plate as described in claim 1 or 2 and flexible circuit board all have the capacitive touch screen of reflectance coating, it is characterized in that, described key set light source flexible circuit board and touch-screen flexible circuit board become one.
5. a kind of cover plate as described in claim 1 or 2 and flexible circuit board all have the capacitive touch screen of reflectance coating, it is characterized in that, described light emitting source is LED light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031353.9A CN105468219B (en) | 2015-12-31 | 2015-12-31 | There is the capacitive touch screen of reflectance coating on a kind of cover board and flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031353.9A CN105468219B (en) | 2015-12-31 | 2015-12-31 | There is the capacitive touch screen of reflectance coating on a kind of cover board and flexible circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105468219A true CN105468219A (en) | 2016-04-06 |
| CN105468219B CN105468219B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511031353.9A Active CN105468219B (en) | 2015-12-31 | 2015-12-31 | There is the capacitive touch screen of reflectance coating on a kind of cover board and flexible circuit board |
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| CN (1) | CN105468219B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774927A (en) * | 2016-12-30 | 2017-05-31 | 珠海市魅族科技有限公司 | Electronic equipment and its control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090243960A1 (en) * | 2008-03-26 | 2009-10-01 | Au Optronics Corp. | Dual Display Module |
| WO2013038655A1 (en) * | 2011-09-15 | 2013-03-21 | シャープ株式会社 | Lighting device and display device provided with same |
| CN203775288U (en) * | 2013-08-16 | 2014-08-13 | 上海闻泰电子科技有限公司 | Mobile phone and capacitive screen thereof |
| CN204155244U (en) * | 2014-11-10 | 2015-02-11 | 京东方科技集团股份有限公司 | Touch display module and electronical display product |
| CN205451022U (en) * | 2015-12-31 | 2016-08-10 | 南京华睿川电子科技有限公司 | Capacitive touch screen who all has reflective coating on apron and flexible line way board |
-
2015
- 2015-12-31 CN CN201511031353.9A patent/CN105468219B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090243960A1 (en) * | 2008-03-26 | 2009-10-01 | Au Optronics Corp. | Dual Display Module |
| WO2013038655A1 (en) * | 2011-09-15 | 2013-03-21 | シャープ株式会社 | Lighting device and display device provided with same |
| CN203775288U (en) * | 2013-08-16 | 2014-08-13 | 上海闻泰电子科技有限公司 | Mobile phone and capacitive screen thereof |
| CN204155244U (en) * | 2014-11-10 | 2015-02-11 | 京东方科技集团股份有限公司 | Touch display module and electronical display product |
| CN205451022U (en) * | 2015-12-31 | 2016-08-10 | 南京华睿川电子科技有限公司 | Capacitive touch screen who all has reflective coating on apron and flexible line way board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774927A (en) * | 2016-12-30 | 2017-05-31 | 珠海市魅族科技有限公司 | Electronic equipment and its control method |
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| Publication number | Publication date |
|---|---|
| CN105468219B (en) | 2018-08-17 |
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