CN201174007Y - Capacitive touching control panel - Google Patents
Capacitive touching control panel Download PDFInfo
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- CN201174007Y CN201174007Y CNU2008201068073U CN200820106807U CN201174007Y CN 201174007 Y CN201174007 Y CN 201174007Y CN U2008201068073 U CNU2008201068073 U CN U2008201068073U CN 200820106807 U CN200820106807 U CN 200820106807U CN 201174007 Y CN201174007 Y CN 201174007Y
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Abstract
The utility model discloses a capacitance touch control panel, which comprises a lens, a shielding layer and a sensing circuit layer, wherein the lens is provided with an upper surface for touch and a lower surface or composition; the shielding layer is composed on the circumference of the lower surface; the sensing circuit layer is distributed under the lens, and the circumference of the sensing circuit layer is shielded by the shielding layer, with a sensing area exposed to receive touch induction of the upper surface and then generate induction signals with capacitance effect; and a glass substrate of the touch control panel arranged between the lens and a display panel is saved, thereby the capacitance touch control panel can save production materials and simplify the assembly procedure and is favorable for thin design of products.
Description
Technical field
The utility model relates to a kind of contact panel, is specifically related to a kind of contact panel that is assemblied on the display panel and is laid with the capacitive touch control circuit.
Background technology
Existing personal digital assistant (Personal Digital Assistant, PDA), palmtop computer (Palm-Sized PC) and information household electrical appliances electronic products such as (Information Appliance), all can dispose a touch control display screen mostly, this screen comprises lens (Lens), display panel (Display Panel) and is configured in Trackpad (Touch Panel) between lens and the display panel; The user can utilize objects such as finger or pointer, clicks according to image that shows on this screen and literal, and then through pressing this Trackpad, imports and operate.
See also Fig. 6, disclose above-mentioned previous technology contents, configuration Trackpad 6 between display panel 2b and lens 5; Periphery between this Trackpad 6 and this display panel 2b is established an adhesive coating 4b to fit each other, the compound black matrix" 51 of the bottom periphery of these lens 5 (Black Matrix), and fit in the end face periphery of a glass substrate 61 (Glass Substrate) of this Trackpad 6, and the multilayer conductive film is laid in the bottom surface of this glass substrate 61, at least comprise a upper strata nesa coating 62 (for example tin indium oxide ITO conductive layer) and lower floor's nesa coating 65, lay a transparent insulating layer 64 between upper strata nesa coating 62 and the lower floor's nesa coating 65, and this upper strata nesa coating 62 all respectively lays one in order to transmit the metallic circuit 63 (Metal Trace) of signal with the periphery of this lower floor's nesa coating 65, this black matrix" 51 covers above this metallic circuit 63, cause this metallic circuit 63 can not be revealed in this lens 5 surfaces, and then beautify this lens 5 outward appearances; The compound transparent protective coatings 66 in these lower floor's nesa coating 65 bottom surfaces (Over Coat), transparent protective coating 66 are megohmite insulant (for example materials such as silicon nitride, silicon dioxide, class photoresistance), avoid the scratch damage with protection lower floor nesa coating 65.The touch-control sensing principle of this capacitive touch control plate 6 is utilized the capacitive sensing that is produced between nesa coating 62,65 and the human body, detects the location coordinate of further calculating its touch-control because of the induced current that capacitive sensing produced.
This display panel 2b can be a LCDs (Liquid Crystal Display, LCD), be between a top glass substrate 22b and a lower glass substrate 26b, to fill a liquid crystal layer 24b (as shown in Figure 6), Polarizer 21b on the end face compound of this top glass substrate 22b, and lay a transparency conducting layer 23b between the bottom surface of this top glass substrate 22b and this liquid crystal layer 24b, the bottom surface compound Polarizer once 27b of this lower glass substrate 26b, and lay another transparency conducting layer 25b between the end face of this lower glass substrate 26b and this liquid crystal layer 24b; This top glass substrate 22b and this transparency conducting layer 23b constitute a upper glass battery lead plate, and this lower glass substrate 26b and this transparency conducting layer 25b constitute vitreous electricity pole plate.
The video picture principle of LCDs, be that this upper glass battery lead plate of utilization and this lower-glass battery lead plate insert and put this liquid crystal layer 24b, utilize the driving of electric field between the upper and lower vitreous electricity pole plate, produce the field effect that liquid crystal molecule reverses, with seeing through or the blocking running of control light source, and then see through the colored filter display color image that this top glass substrate 22b is constituted.Therefore, the user can press the position of this Trackpad 6 with respect to this display image or literal indirectly via these lens 5 surfaces, operates and imports.
But above-mentioned between lens 5 and display panel 2b the configuration Trackpad 6 electronic product in, the glass substrate 61 of these lens 5 and Trackpad 6 all uses identical glass material to make, therefore can repeat to expend more production material during fabrication, and these lens 5 and Trackpad 6 all are being to produce separately earlier to finish traditionally, repeatedly putting in regular turn fits again is integral, so its linkage editor is comparatively complicated, and waste man-hour, easy output defective products, and increase because of repeatedly putting the problem of the scalariform thickness that forms on foot, be unfavorable for the thin type design of electronic product, so need be improved.
Summary of the invention
The purpose of this utility model is to provide a kind of capacitance type touch-control panel that is laid with the capacitive touch control circuit.
For reaching above-mentioned purpose, the concrete content of the utility model is:
A kind of capacitance type touch-control panel comprises:
One lens, lens tool one can be for the upper surface of touching and the lower surface of a compound usefulness;
One shielding layer, shielding layer are compound in the lower surface periphery of these lens;
One sensing circuit layer, sensing circuit layer are laid in this lens below, its this shielding layer of periphery contact, and the centre appears a sensing area, and sensing area is subjected to the touching induction of this lens upper surface and produces capacity effect and export an induced signal.
The scope of being touched of this sensing area wherein, it is the outer zone of range of defilade of removing this shielding layer, and be a packed layer between sensing area, in the space of packed layer between these lens and this sensing circuit layer, this sensing circuit layer is located at the bottom surface of this shielding layer and this packed layer.
Compound one protective layer that can stop noise between these lens and this shielding layer wherein.
Wherein this sensing circuit layer comprises a single conducting film.
Wherein this sensing circuit layer comprises a single conducting film, and a metallic circuit of being located at this single conducting film top or bottom periphery, and this shielding layer is positioned at the top of this metallic circuit.
Wherein this compound protective seam in sensing circuit layer bottom surface is laid an adhesive coating below this protective seam, and an adhesive coating and a display panel are fitted.
This compound adhesive coating in sensing circuit layer bottom surface wherein, the Polarizer of an adhesive coating and a display panel is fitted.
A kind of capacitance type touch-control panel comprises:
One lens, lens tool one can be for the upper surface of touching and the lower surface of a compound usefulness;
One shielding layer, shielding layer are compound in this lower surface periphery;
One first sensing circuit layer, the first sensing circuit layer are laid in this lens below, this shielding layer of periphery contact, and the centre appears a sensing area, and sensing area is subjected to the touching induction of this upper surface and produces capacity effect, and exports one first induced signal;
One insulation course, insulation course are laid in the first sensing circuit layer bottom surface of containing this sensing area at least;
One second sensing circuit layer, the second sensing circuit layer is laid in this insulation course bottom surface, responded to and the generation capacity effect by the touching of this sensing area, and exports one second induced signal.
The scope of being touched of this sensing area wherein, it is the outer zone of range of defilade of removing this shielding layer, and be a packed layer between sensing area, packed layer is in the space of filling up between these lens and this first sensing circuit layer, and this first sensing circuit layer is laid in the bottom surface of this shielding layer and this packed layer.
Compound one protective layer that can stop noise between these lens and this shielding layer wherein.
Wherein this first sensing circuit layer comprises a upper strata conducting film, and this second sensing circuit layer comprises lower floor's conducting film.
Wherein this first sensing circuit layer comprises a upper strata conducting film, and a metallic circuit that is laid in this conducting film top, upper strata or bottom periphery, and this shielding layer is positioned at the top of this metallic circuit.
Wherein this second sensing circuit layer comprises lower floor's conducting film, and a metallic circuit that is laid in this lower floor conducting film top or bottom periphery, and this shielding layer is positioned at the top of this metallic circuit.
Wherein this compound protective seam in lower floor conducting film bottom surface is provided with an adhesive coating below this protective seam, and an adhesive coating and a display panel are fitted.
This compound adhesive coating in sensing circuit layer bottom surface wherein, the Polarizer of adhesive coating and display panel is fitted.
According to as can be known above-mentioned, the utility model is at inboard this sensing circuit layer of laying of these lens, forms the capacitive touch control circuit of above-mentioned traditional Trackpad, causes this panel directly to possess the touch-control ability of Trackpad; Therefore, can omit the glass substrate that is configured in the Trackpad between lens and display panel traditionally, and directly assemble capacitance type touch-control panel of the present utility model at this display panel end face; In view of the above, can effectively save and produce the glass material that this tradition Trackpad institute must use, and can simplify applying program between the panel, can significantly reduce the cost and the time of producing and assembling, help the design of product thin type simultaneously.
Description of drawings
Fig. 1: be the stereo appearance figure of the utility model example.
Fig. 2: be the cut-away view of the utility model first embodiment.
Fig. 3: be the additional form cut-away view of Fig. 1 embodiment.
Fig. 4: be the cut-away view of the utility model second embodiment.
Fig. 5: be the additional form cut-away view of Fig. 4 embodiment.
Fig. 6: be the cut-away view of configuration Trackpad between conventional display panels and lens.
Embodiment
Below the effect forming and can produce with regard to the structure of the utility model capacitance type touch-control panel, conjunction with figs. is described in detail as follows with preferred embodiment:
See also Fig. 1, be the stereo appearance figure of the utility model example, illustrate that the utility model capacitance type touch-control panel 1 can be installed on the housing 3 of electronic product; Sees also Fig. 2, be the cut-away view of the utility model first embodiment, illustrate that the utility model capacitance type touch-control panel 1 is assemblied in a display panel 2 end faces, and this capacitance type touch-control panel 1 composition form comprises:
One lens 11, lens 11 can be glass, glued membrane or glue shell, and these lens 11 tools one can be for the upper surface 111 of touching and the lower surface 112 of a compound usefulness;
One shielding layer 12 can be black matrix" in fact or other can produce the multiple layer or the coating of bridging effect, and shielding layer 12 is lower surface 112 peripheries that are compound in lens 11;
One sensing circuit layer 13 is laid in this lens 11 belows, and peripheral crested layer 12 covers, and the centre appears a sensing area 14.
Wherein, the scope of being touched of described sensing area 14 except the outer zone of the range of defilade of this shielding layer 12, and is a transparent packed layer 15 (Smooth layer) (as shown in Figure 2) between sensing area; This packed layer 15 uses transparent organic (acryl or organic polymer) or inorganic to make, transparent packed layer 15 fills up the space between lens 11 and the sensing circuit layer 13, and this sensing circuit layer 13 is laid in the bottom surface of this shielding layer 12 and this packed layer 15, the effect of this packed layer 15 is the bottom surface of smooth shielding layer 12, is beneficial to promote the qualification rate on the processing procedure.The protective layer 16 (Shielding layer) that can compound one between lens 11 and shielding layer 12 can stop noise, and the width of this protective layer 16 can be consistent with shielding layer 12.
The laying mode of this sensing circuit layer 13, can adopt technology such as traditional coating, exposure, development and etching to be processed into, in the present embodiment, sensing circuit layer 13 comprises a single conducting film 131, and in another embodiment, sensing circuit layer 13 removes and comprises a single conducting film 131, also comprises a metallic circuit that is laid in these single conducting film 131 peripheries; Wherein, this metallic circuit can be laid in the top perimeter (metallic circuit 132 as shown in Figure 2) of single conducting film 131, also can be laid in this single conducting film 131 bottom periphery (metallic circuit 133 as shown in Figure 3).12 of shielding layers are shielded in the top of this metallic circuit 132,133, cause this metallic circuit 132,133 not understand outer showing in these lens 11 surfaces, and then beautify this lens 11 outward appearances.
This single conducting film 131 is made by transparent conductive material (tin indium oxide ITO), and the compound protective clear layer 17 (as shown in Figure 2) in these sensing circuit layer 13 bottom surfaces, protective seam 17 is a protective finish, and the periphery between this protective seam 17 and this display panel 2 is established an adhesive coating 4, and fits with display panel 2; Also can omit this protective clear layer 17, and directly utilize adhesive coating 4 and display panel 2 one on Polarizer 21 fit (as shown in Figure 3).
First embodiment of the present utility model is made of said structure, wherein this display panel 2 can see through conducting film 131 and packed layer 15 display image and literal on lens 11, particularly as user during with the upper surface 111 of these lens 11 of finger touches, the position that single conducting film 131 in these sensing area 14 scopes is subjected to finger touches corresponding to this upper surface 111, can accept the touching of user's finger of this upper surface 111 responds to and the generation capacity effect, and this capacity effect can produce a capacitive sensing signal, this capacitive sensing signal is via this metallic circuit 132 (as shown in Figure 2), 133 (as shown in Figure 3) were sent in the extraneous microprocessor (not illustrating) carries out sensed position and calculates, to reach the purpose of touch-control.
According to as can be known above-mentioned, the utility model is at these lens 11 inboard these sensing circuit layers 13 of laying, and forms the capacitive touch control circuit of above-mentioned traditional Trackpad, causes this panel 1 directly to possess the touch-control ability of Trackpad; Therefore, can omit the glass substrate that is configured in the Trackpad between lens and display panel traditionally, and directly assemble capacitance type touch-control panel 1 of the present utility model at these display panel 2 end faces; In view of the above, can effectively save and produce the glass material that this tradition Trackpad institute must use, and can simplify applying program between the panel, can significantly reduce the cost and the time of producing and assembling, help the design of product thin type simultaneously.
See also Fig. 4, disclose the cut-away view of the utility model second embodiment, illustrate that the utility model capacitance type touch-control panel 1a is assemblied in this display panel 2a end face, and the utility model capacitance type touch-control panel 1a comprises:
One lens 11a, lens 11a can be glass, glued membrane or glue shell, and these lens 11a tool one can be for the upper surface 111a of touching and the lower surface 112a of a compound usefulness;
One shielding layer 12a, shielding layer 12a can be black matrix" or other are enough to produce the multiple layer or the coating of bridging effect, is compound in this lower surface 112a periphery;
One first sensing circuit layer 13a, the first sensing circuit layer 13a are laid in these lens 11a below, and periphery covers for this shielding layer 12a, to appear a sensing area 14a;
One transparent insulation course 18a is laid in the first sensing circuit layer 13a bottom surface of sensing area 14a;
One second sensing circuit layer 19a is laid in this insulation course 18a bottom surface.
Wherein, the scope of being touched of described sensing area 14a, it is the outer zone of range of defilade of removing this shielding layer 12a, and fill a transparent packed layer 15a (as shown in Figure 4) between sensing area, transparent packed layer 15a uses transparent organic or inorganic material to make, and fills up the space between the lens 11a and the first sensing circuit layer 13a; This first sensing circuit layer 13a is laid in the bottom surface of this shielding layer 12a and this packed layer 15a, and the compound one transparent protective layer 16a that can stop noise between these lens 11a and this shielding layer 12a, and wherein, the width of this protective layer 16a can be consistent with shielding layer 12a.
In the present embodiment, the first sensing circuit layer 13a comprises a upper strata conducting film 134a; And in another embodiment, this first sensing circuit layer 13a is except that comprising this upper strata conducting film 134a, also comprise the metallic circuit of being located at this upper strata conducting film 134a periphery, wherein, metallic circuit can be located at the top perimeter (metallic circuit 132a as shown in Figure 4) of upper strata conducting film 134a, also can be laid in the bottom periphery (metallic circuit 133a as shown in Figure 5) of this upper strata conducting film 134a.Shielding layer 12a then is shielded in the top of this metallic circuit 132a, 133a, causes this metallic circuit 132a, 133a not to understand outer showing in these lens 11a surface, and then beautifies these lens 11a outward appearance.
The second sensing circuit layer 19a comprises a conducting film 134b of lower floor; And in another embodiment, the second sensing circuit layer 19a is except that comprising the conducting film 134b of lower floor, also comprise the metallic circuit of being located at the conducting film 134b of this lower floor periphery, wherein, metallic circuit can be located at the top perimeter (metallic circuit 132b as shown in Figure 4) of the conducting film 134b of lower floor, also can be laid in the bottom periphery (metallic circuit 133b as shown in Figure 5) of the conducting film 134b of this lower floor.Shielding layer 12a equally also is shielded in the top of this metallic circuit 132b, 133b, causes this metallic circuit 132b, 133b not to understand outer showing in these lens 11a surface, and then beautifies these lens 11a outward appearance.
The compound protective clear layer 17a (as shown in Figure 4) in the second sensing circuit layer 19a bottom surface, protective clear layer 17a is a protective finish, and the periphery between this protective seam 17a and this display panel 2a is established an adhesive coating 4a and fitted with display panel 2a; Perhaps, can omit this protective clear layer 17a, and directly utilize the last Polarizer 21a of adhesive coating 4a and display panel 2a to fit (as shown in Figure 5).
More than can be for implementing the utility model according to this, particularly as user during with the upper surface 111a of these lens of finger touches 11a, upper strata conducting film 134a in this sensing area 14a scope and the conducting film 134b of lower floor accept finger touches corresponding to this upper surface 111a position, can produce the capacitive sensing signal separately because of capacity effect, and those capacitive sensing signals are sent in the extraneous microprocessor (not illustrating) via the metallic circuit under separately and carry out sensed position and calculate, to reach the purpose of touch-control; In another embodiment, the capacitance sensing signal also can be directly via the conducting film under separately be sent to the conducting film microprocessor linked in (not illustrating) carry out sensed position and calculate, to reach the purpose of touch-control.In view of the above, the utility model can have both first embodiment the simplification linkage editor, promote the assembling yield and be beneficial to usefulness such as thin type design.
Though the utility model is described by previous embodiment, but still can change its form and details, make not breaking away under the spirit of the present utility model.Aforementioned is the most rational using method of the utility model, one of the mode that can specifically implement for the utility model only, but not as limit.
Claims (15)
1, a kind of capacitance type touch-control panel is characterized in that, comprising:
One lens, lens tool one can be for the upper surface of touching and the lower surface of a compound usefulness;
One shielding layer, shielding layer are compound in the lower surface periphery of these lens;
One sensing circuit layer, sensing circuit layer are laid in this lens below, its this shielding layer of periphery contact, and the centre appears a sensing area, and sensing area is subjected to the touching induction of this lens upper surface and produces capacity effect and export an induced signal.
2, capacitance type touch-control panel as claimed in claim 1, it is characterized in that, the scope of being touched of this sensing area wherein, it is the outer zone of range of defilade of removing this shielding layer, and between sensing area a packed layer, in the space of packed layer between these lens and this sensing circuit layer, this sensing circuit layer is located at the bottom surface of this shielding layer and this packed layer.
3, capacitance type touch-control panel as claimed in claim 1 is characterized in that, wherein compound one protective layer that can stop noise between these lens and this shielding layer.
4, capacitance type touch-control panel as claimed in claim 1 is characterized in that, wherein this sensing circuit layer comprises a single conducting film.
5, capacitance type touch-control panel as claimed in claim 1 is characterized in that, wherein this sensing circuit layer comprises a single conducting film, and a metallic circuit of being located at this single conducting film top or bottom periphery, and this shielding layer is positioned at the top of this metallic circuit.
6, capacitance type touch-control panel as claimed in claim 1 is characterized in that, wherein this compound protective seam in sensing circuit layer bottom surface is laid an adhesive coating below this protective seam, and an adhesive coating and a display panel are fitted.
7, capacitance type touch-control panel as claimed in claim 1 is characterized in that, this compound adhesive coating in sensing circuit layer bottom surface wherein, and the Polarizer of an adhesive coating and a display panel is fitted.
8, a kind of capacitance type touch-control panel is characterized in that, comprising:
One lens, lens tool one can be for the upper surface of touching and the lower surface of a compound usefulness;
One shielding layer, shielding layer are compound in this lower surface periphery;
One first sensing circuit layer, the first sensing circuit layer are laid in this lens below, this shielding layer of periphery contact, and the centre appears a sensing area, and sensing area is subjected to the touching induction of this lens upper surface and produces capacity effect, and exports one first induced signal;
One insulation course, insulation course are laid in the bottom surface of containing this first sensing circuit layer sensing area at least;
One second sensing circuit layer, the second sensing circuit layer is laid in this insulation course bottom surface, responded to and the generation capacity effect by the touching of this sensing area, and exports one second induced signal.
9, capacitance type touch-control panel as claimed in claim 8, it is characterized in that, the scope of being touched of this sensing area wherein, it is the outer zone of range of defilade of removing this shielding layer, and between sensing area a packed layer, packed layer is in the space of filling up between these lens and this first sensing circuit layer, and this first sensing circuit layer is laid in the bottom surface of this shielding layer and this packed layer.
10, capacitance type touch-control panel as claimed in claim 8 is characterized in that, wherein compound one protective layer that can stop noise between these lens and this shielding layer.
11, capacitance type touch-control panel as claimed in claim 8 is characterized in that, wherein this first sensing circuit layer comprises a upper strata conducting film, and this second sensing circuit layer comprises lower floor's conducting film.
12, capacitance type touch-control panel as claimed in claim 8, it is characterized in that, wherein this first sensing circuit layer comprises a upper strata conducting film, and a metallic circuit that is laid in this conducting film top, upper strata or bottom periphery, and this shielding layer is positioned at the top of this metallic circuit.
13, capacitance type touch-control panel as claimed in claim 8, it is characterized in that, wherein this second sensing circuit layer comprises lower floor's conducting film, and a metallic circuit that is laid in this lower floor conducting film top or bottom periphery, and this shielding layer is positioned at the top of this metallic circuit.
14, capacitance type touch-control panel as claimed in claim 8 is characterized in that, wherein this compound protective seam in lower floor conducting film bottom surface is provided with an adhesive coating below this protective seam, and an adhesive coating and a display panel are fitted.
15, capacitance type touch-control panel as claimed in claim 8 is characterized in that, this compound adhesive coating in sensing circuit layer bottom surface wherein, and the Polarizer of adhesive coating and display panel is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201068073U CN201174007Y (en) | 2008-03-18 | 2008-03-18 | Capacitive touching control panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201068073U CN201174007Y (en) | 2008-03-18 | 2008-03-18 | Capacitive touching control panel |
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| CN201174007Y true CN201174007Y (en) | 2008-12-31 |
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| CNU2008201068073U Expired - Lifetime CN201174007Y (en) | 2008-03-18 | 2008-03-18 | Capacitive touching control panel |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TPK Touch Solutions (Xiamen) Inc. Assignor: TrendOn Electronics Co., Ltd. Contract fulfillment period: 2008.12.31 to 2018.3.18 Contract record no.: 2009990000382 Denomination of utility model: Capacitor type contact panel Granted publication date: 20081231 License type: Exclusive license Record date: 20090428 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.31 TO 2018.3.18; CHANGE OF CONTRACT Name of requester: CHEN HUNG SCIENCE AND TECHNOLOGY (XIAMEN) CO., LTD Effective date: 20090428 |
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