CN101833184A - Integrated structure of capacitive touch pad and liquid crystal display panel - Google Patents

Integrated structure of capacitive touch pad and liquid crystal display panel Download PDF

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Publication number
CN101833184A
CN101833184A CN200910008184A CN200910008184A CN101833184A CN 101833184 A CN101833184 A CN 101833184A CN 200910008184 A CN200910008184 A CN 200910008184A CN 200910008184 A CN200910008184 A CN 200910008184A CN 101833184 A CN101833184 A CN 101833184A
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CN
China
Prior art keywords
electrode
touch
display panels
integrated structure
capacitive touch
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Pending
Application number
CN200910008184A
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Chinese (zh)
Inventor
简顺达
张恒耀
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TPK Touch Solutions Inc
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TPK Touch Solutions Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TPK Touch Solutions Inc filed Critical TPK Touch Solutions Inc
Priority to CN200910008184A priority Critical patent/CN101833184A/en
Priority to JP2009002882U priority patent/JP3152062U/en
Priority to DE202009006774U priority patent/DE202009006774U1/en
Priority to EP09841360A priority patent/EP2406684A4/en
Priority to PCT/CN2009/074916 priority patent/WO2010102491A1/en
Priority to JP2011553258A priority patent/JP2012520495A/en
Priority to KR1020117023691A priority patent/KR20120000565A/en
Publication of CN101833184A publication Critical patent/CN101833184A/en
Pending legal-status Critical Current

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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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • 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

Abstract

The invention provides an integrated structure of a capacitive touch pad and a liquid crystal display panel. In the integrated structure of the capacity-type touch pad and the liquid crystal display panel, a first touch inductive electrode layer is formed above an upper polaroid of the liquid crystal display panel, a second touch inductive electrode layer is formed below the upper polaroid of the liquid crystal display panel, and a touch object is respectively inducted with the first touch inductive electrode layer and the second touch inductive electrode layer to generate a corresponding capacitive coupling relation so as to achieve the touch effect.

Description

The integrated structure of capacitive touch control plate and display panels
Technical field
The present invention is about the design of a kind of combination of touch control plate and display panels, particularly about the integrated structure of a kind of capacitive touch control plate and display panels.
Background technology
Display panels (LCD) uses being commonly people at present, and various structural designs about display panels are arranged.Consulting Figure 1 and Figure 2 simultaneously, is to show the structure section synoptic diagram of known display panels and the structure section synoptic diagram of LCD MODULE.As shown in the figure, display panels 1 comprises a LCD MODULE 10 and a fender 11.
LCD MODULE 10 comprises on Polarizer 12, an infrabasal plate 101, a lower conductiving layer 102, the liquid crystal layer 103, a Polarizer 14 on conductive layer 104, a chromatic filter layer 13, the upper substrate 105 and.
Display panels combines the aspect with contact panel, and the technology that display panels is combined with contact panel is arranged at present, makes operation easier.The touch-control design of resistive film circuit is arranged in early days, the touch-control body contacts two-layer resistive film with display element at the pressure that contact position caused, thereby a closed switch and send a touch signal and further handle for a controller, contact position is detected thus.But after long-term pushing, the contact panel resistive film damages because of constantly pushing deformation, forms the problem of contact panel reliability.
The improvement of doing at the shortcoming of resistive film circuit touch-control design and capacitive touch control plate is arranged.The structure of capacitive touch control plate is by each one touch-control sensing pattern layer and position are formed at the middle dielectric layer of two-layer touch-control sensing pattern layer up and down.When display panels combines with capacitive touch control plate, all be to produce separately earlier to finish usually, repeatedly putting in regular turn fits again is integral.So, the user can utilize conductive bodies such as finger or pointer, and the pattern and the literal that show according to the Trackpad surface click, to import and to operate.
Summary of the invention
The technical matters that institute of the present invention desire solves:
Trackpad and display panels all need be provided with fender on the surface, and fender uses identical glass material made usually, during fabrication can the more production material of repeat consumption.In addition, Trackpad and display panels all be usually produce separately earlier finish after, repeatedly put applying more in regular turn, this kind fit is comparatively complicated, waste man-hour, and output defective products easily.And separately produce the mode of repeatedly putting again and can cause the product thickness after finishing thicker, increase the difficulty of product shape slimming design.
Therefore, purpose of the present invention promptly provides the integrated structure of a kind of capacitive touch control plate and display panels, and the integration mode of capacitive touch control plate that it provides and display panels does not need additionally to increase base material, so that the product slimming.
The technological means that the present invention deals with problems:
The present invention is to comprise a display panels, one first touch-control sensing electrode layer and one second touch-control sensing electrode layer for the technological means that problem adopted that solves known technology.Display panels comprises a LCD MODULE, and LCD MODULE comprises Polarizer on the Polarizer and.The first touch-control sensing electrode layer has a predetermined electrode pattern, is formed on the Polarizer; The second touch-control sensing electrode layer has a predetermined electrode pattern, is formed under the Polarizer.
In an embodiment of the present invention, also can only comprise a display panels and capacitance touching control induction pattern layer, described capacitance touching control induction pattern layer is formed on the Polarizer or descends.
The present invention contrasts the effect of known technology:
Via the technology used in the present invention means, make capacitive touch control plate and display panels be integrated into one, its integration mode does not need additionally to increase base material, makes integral thickness can not increase, and helps the demand of product slimming, alleviates product weight.Moreover, capacitive touch control plate is not to assemble after separating production with display panels again, but directly is combined among the display panels, so when industry is utilized, have the advantage that technology is simple and easy, yield rate is high, cost of manufacture is low, and then promote processability and help the output yield rate.Moreover, because the touch-control sensing electrode layer among the present invention is incorporated into the last Polarizer of display panels, approach the operating surface of user's finger or touch-control object, so the touch-control sensing electrode layer has higher induction sensitivity.
Description of drawings
Fig. 1 is the structure section synoptic diagram that shows known display panels;
Fig. 2 is the structure section synoptic diagram that shows known LCD MODULE;
Fig. 3 is the structure section synoptic diagram that shows first embodiment of the invention;
Fig. 4 is the perspective exploded view that shows first embodiment of the invention;
Fig. 5 is the perspective exploded view that shows second embodiment of the invention;
Fig. 6 is the perspective exploded view that shows third embodiment of the invention;
Fig. 7 is the local section synoptic diagram that shows capacitance touching control induction pattern layer;
Fig. 8 is the perspective exploded view that shows fourth embodiment of the invention.
Drawing reference numeral
100,100a, 100b, 100c integrated structure
1 display panels
10 LCD MODULE
101 infrabasal plates
102 lower conductiving layers
103 liquid crystal layers
Conductive layer on 104
105 upper substrates
11 fenders
12 times Polarizers
13 chromatic filter layers
Polarizer on 14
2 first touch-control sensing electrode layers
20,20a electrode pattern
21,22 electrodes
3 second touch-control sensing electrode layers
30,30a electrode pattern
31,32 electrodes
4 touch-control sensing pattern layers
40 electrode patterns
41 first electrodes
411 electrodes
42 second electrodes
421 electrodes
43 insulation courses
X, Y are axial
Embodiment
Specific embodiment of the present invention will be described further by following embodiment and appended accompanying drawing.
Consulting shown in Figure 3ly, is the structure section synoptic diagram that shows first embodiment of the invention.As shown in the figure, the integrated structure 100 of first embodiment of the invention capacitive touch control plate and display panels comprises display panels 1, one first touch-control sensing electrode layer 2 and one second touch-control sensing electrode layer 3.
Display panels 1 is a known structure; identical with earlier figures 1 and Fig. 2, comprise the following Polarizer 12, infrabasal plate 101, lower conductiving layer 102, liquid crystal layer 103, last conductive layer 104, chromatic filter layer 13, upper substrate 105, last Polarizer 14 and the fender 11 that from bottom to top are provided with in regular turn.Wherein said chromatic filter layer 13 mainly comprises known black matrix" (Black Matrix) and chromatic photoresist (Color Resist).
The first touch-control sensing electrode layer 2 is formed on the Polarizer 14; The second touch-control sensing electrode layer 3 is formed under the Polarizer 14.
Consulting shown in Figure 4ly, is the perspective exploded view that shows first embodiment of the invention.As shown in the figure, the first touch-control sensing electrode layer 2 has a predetermined electrode pattern 20, and electrode pattern 20 comprises a plurality of elongated electrodes 21, and each electrode 21 is parallel each other but do not contact.The second touch-control sensing electrode layer 3 has a predetermined electrode pattern 30, and electrode pattern 30 comprises a plurality of elongated electrodes 31, and each electrode 31 is parallel each other but do not contact.Each electrode 21 of the first touch-control sensing electrode layer 2 and each electrode 31 of the second touch-control sensing electrode layer 3 are electrically connected on a controller (not shown).
In the present embodiment, the orientation of each elongated electrode 31 of the orientation of each elongated electrode 21 of the first touch-control sensing electrode layer 2 and the second touch-control sensing electrode layer 3 is orthogonal.The electrode 21 of the first touch-control sensing electrode layer 2 is responsible for the touch-control sensing of a predetermined shaft to Y, the touch-control sensing that 31 at the electrode of the second touch-control sensing electrode layer 3 is responsible for a predetermined shaft to X.In the enforcement, the electrode 21 of the first touch-control sensing electrode layer 2 can also be set to be responsible for the touch-control sensing of axial X, and the electrode 31 of the second touch-control sensing electrode layer 3 be set to be responsible for the touch-control sensing of axial Y.
The electrode 22,32 of the electrode 21,31 of strip implements that different variations can be arranged in the electrode pattern, can be rhombus, square, regular hexagon does not wait, shown in the integrated structure 100a among Fig. 5, the electrode 21 of each strip is connected by a plurality of electrodes that are hexagonal geometric profile shape 22 and forms among the electrode pattern 20a of the first touch-control sensing electrode layer 2, and the electrode 31 of each strip is connected by a plurality of electrodes 32 that are hexagonal geometric profile shape and forms among the electrode pattern 30a of the second touch-control sensing electrode layer 3.
When the user utilizes a touch-control object (as finger or other conductive bodies) touching, because the first touch-control sensing electrode layer 2 and the second touch-control sensing electrode layer 3 that are combined in the display panels 1 all are attached to controller (figure does not show), so when touch-control takes place, because the touch-control object produces capacitive coupling with the first touch-control sensing electrode layer 2 and 3 inductions of the second touch-control sensing electrode layer respectively, the position of axial X, the Y of correspondence is further handled to controller by the touching signals of sending a potential change, position of touch is detected thus, reaches the effect of touch-control.
Consulting Figure 6 and Figure 7 simultaneously, is to show the perspective exploded view of third embodiment of the invention and the local section synoptic diagram of capacitance touching control induction pattern layer.The structural design of the integrated structure 100b of this embodiment is identical with aforementioned first embodiment haply, so identical member is to indicate with the components identical numbering, as a means of correspondence.Its difference is that integrated structure 100b comprises that capacitance touching control induction pattern layer 4 is formed on the Polarizer 14.
Capacitance touching control induction pattern layer 4 has a predetermined electrode pattern 40, and electrode pattern 40 comprises a plurality of first elongated electrodes 41 and a plurality of second elongated electrode 42.The orientation of first electrode 41 and second electrode 42 is not parallel to each other and crossing, but the intersection is formed with an insulation course 43 (as shown in Figure 7) between first electrode 41 and second electrode 42, makes second electrode 42 cross over first electrode 41 and do not contact.Each first electrode 41 and second electrode 42 are connected by a plurality of electrodes 411,421 that are hexagonal geometric profile shape respectively and form.Adopt the electrode 22,32 of hexagonal geometric profile shape can reach the advantage of effective raising touch-control sensing sensitivity.
When the user with touch-control object (as finger or other conductive bodies) when touching, in the touched zone between corresponding first electrode 41 that contains lid and second electrode 42 can because the touch-control object respectively and between first electrode 41 and second electrode 42 induction produce capacitive coupling, and according to the size and location difference in touched zone, the touching signals of sending corresponding potential change respectively is to controller, by this from first electrode 41 and second electrode, 42 pairing axial X, the touching signals that the size in Y and touched zone is sent out is judged the touch position (figure does not show) of touch-control object.
Consulting shown in Figure 8ly, is the perspective exploded view that shows fourth embodiment of the invention.The structural design of the integrated structure 100c of this embodiment is identical with aforementioned the 3rd embodiment haply, so identical member is to indicate with the components identical numbering, as a means of correspondence.Its difference is that the capacitance touching control induction pattern layer 4 of integrated structure 100c is formed under the Polarizer 14.Same by the touch-control object respectively with first electrode 41 and 42 corresponding relations of capacitive coupling of second electrode, reach the effect of touch-control.
By above embodiment as can be known, the value on the true tool industry of the integrated structure of capacitive touch control plate provided by the present invention and display panels was so the present invention had accorded with the important document of patent already.Above narration only is preferred embodiment explanation of the present invention, and those skilled in the art is when doing other all improvement according to above-mentioned explanation, and these changes still belong to invention spirit of the present invention and claim institute confining spectrum.

Claims (11)

1. the integrated structure of capacitive touch control plate and display panels is characterized in that the integrated structure of described capacitive touch control plate and display panels comprises:
One display panels comprises a LCD MODULE, and described LCD MODULE comprises Polarizer on the Polarizer and;
One first touch-control sensing electrode layer has a predetermined electrode pattern, is formed on described going up on the Polarizer;
One second touch-control sensing electrode layer, has a predetermined electrode pattern, be formed on described going up under the Polarizer, by the electrode pattern of described second touch-control sensing electrode layer and the described first touch-control sensing electrode layer, make a touch-control object produce the corresponding relation of capacitive coupling with described first touch-control sensing electrode layer and the induction of the described second touch-control sensing electrode layer respectively.
2. the integrated structure of capacitive touch control plate as claimed in claim 1 and display panels is characterized in that, the electrode pattern of described first touch-control sensing electrode layer and the described second touch-control sensing electrode layer comprises a plurality of elongated electrodes respectively.
3. the integrated structure of capacitive touch control plate as claimed in claim 2 and display panels, it is characterized in that the electrode of each strip of described first touch-control sensing electrode layer and the described second touch-control sensing electrode layer is connected by a plurality of electrodes that are hexagonal geometric profile shape respectively and forms.
4. the integrated structure of capacitive touch control plate and display panels is characterized in that the integrated structure of described capacitive touch control plate and display panels comprises:
One display panels comprises a LCD MODULE, and described LCD MODULE comprises Polarizer on the Polarizer and;
One capacitance touching control induction pattern layer is formed on described going up on the Polarizer.
5. the integrated structure of capacitive touch control plate as claimed in claim 4 and display panels is characterized in that, described capacitance touching control induction pattern layer has a predetermined electrode pattern.
6. the integrated structure of capacitive touch control plate as claimed in claim 5 and display panels, it is characterized in that, the electrode pattern of described capacitance touching control induction pattern layer comprises a plurality of first elongated electrodes and a plurality of second elongated electrode, the orientation of described first electrode and described second electrode is not parallel to each other and crossing, but described first electrode does not contact with described second electrode.
7. the integrated structure of capacitive touch control plate as claimed in claim 6 and display panels, it is characterized in that first electrode of each strip of described capacitance touching control induction pattern layer and second electrode are to be connected and to be formed by a plurality of electrodes that are hexagonal geometric profile shape.
8. the integrated structure of capacitive touch control plate and display panels is characterized in that the integrated structure of described capacitive touch control plate and display panels comprises:
One display panels comprises a LCD MODULE, and described LCD MODULE comprises Polarizer on the Polarizer and;
One capacitance touching control induction pattern layer is formed on described going up under the Polarizer.
9. the integrated structure of capacitive touch control plate as claimed in claim 8 and display panels is characterized in that, described capacitance touching control induction pattern layer has a predetermined electrode pattern.
10. the integrated structure of capacitive touch control plate as claimed in claim 9 and display panels, it is characterized in that, the electrode pattern of described capacitance touching control induction pattern layer comprises a plurality of first elongated electrodes and a plurality of second elongated electrode, the orientation of described first electrode and described second electrode is not parallel to each other and crossing, but described first electrode does not contact with described second electrode.
11. the integrated structure of capacitive touch control plate as claimed in claim 10 and display panels, it is characterized in that first electrode of each strip of described capacitance touching control induction pattern layer and second electrode are to be connected and to be formed by a plurality of electrodes that are hexagonal geometric profile shape.
CN200910008184A 2009-03-13 2009-03-13 Integrated structure of capacitive touch pad and liquid crystal display panel Pending CN101833184A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN200910008184A CN101833184A (en) 2009-03-13 2009-03-13 Integrated structure of capacitive touch pad and liquid crystal display panel
JP2009002882U JP3152062U (en) 2009-03-13 2009-05-01 Integrated structure of capacitive touch panel and liquid crystal display panel
DE202009006774U DE202009006774U1 (en) 2009-03-13 2009-05-11 Liquid crystal display, which is combined with capacitive contact devices
EP09841360A EP2406684A4 (en) 2009-03-13 2009-11-12 Liquid crystal display integrated with capacitive touch devices
PCT/CN2009/074916 WO2010102491A1 (en) 2009-03-13 2009-11-12 Liquid crystal display integrated with capacitive touch devices
JP2011553258A JP2012520495A (en) 2009-03-13 2009-11-12 Liquid crystal display integrated with capacitive touch device
KR1020117023691A KR20120000565A (en) 2009-03-13 2009-11-12 Liquid crystal display integrated with capacitive touch devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910008184A CN101833184A (en) 2009-03-13 2009-03-13 Integrated structure of capacitive touch pad and liquid crystal display panel

Publications (1)

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CN101833184A true CN101833184A (en) 2010-09-15

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Country Status (6)

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EP (1) EP2406684A4 (en)
JP (2) JP3152062U (en)
KR (1) KR20120000565A (en)
CN (1) CN101833184A (en)
DE (1) DE202009006774U1 (en)
WO (1) WO2010102491A1 (en)

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