CN104503119A - In-plane switching type liquid crystal display with touch control function - Google Patents
In-plane switching type liquid crystal display with touch control function Download PDFInfo
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- CN104503119A CN104503119A CN201410733572.0A CN201410733572A CN104503119A CN 104503119 A CN104503119 A CN 104503119A CN 201410733572 A CN201410733572 A CN 201410733572A CN 104503119 A CN104503119 A CN 104503119A
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- 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
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- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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Abstract
The invention relates to an in-plane switching (IPS) type liquid crystal display with a touch control function. The liquid crystal display mainly comprises a liquid crystal layer, an active matrix transistor substrate with an electrode pair, a color filter (CF) substrate and a sensing electrode layer, wherein the sensing electrode layer can be arranged above or below the CF substrate and also can be divided into two parts which are arranged above and below the CF substrate respectively.
Description
The application to be application number be 200910171663.9 name be called the divisional application of the application for a patent for invention of " the plane conversion formula liquid crystal display with touch controllable function ", the applying date of original application is on 09 02nd, 2009.
Technical field
The present invention relates to a kind of contact panel, particularly relate to a kind of plane conversion formula liquid crystal display with touch controllable function.
Background technology
Contact panel (touch pane l) or touch control screen (touch screen) are widely used in electronic installation gradually, particularly Portable or portable electric device, such as personal digital assistant (PDA) or mobile phone.Contact panel is a kind of application technology touch technology (such as resistance-type, condenser type, optical touch control technology) and display panel combined.Because the maturation of liquid crystal display in recent years (LCD) panel technology develops, therefore touch technology being incorporated into display panels (that is liquid crystal touch panel) is become a kind of trend.
Fig. 1 shows the structure 9 of traditional liquid crystal contact panel, as United States Patent (USP) the 6th, 259, No. 490, is entitled as " liquid crystal indicator (Liquid Crystal Display Device) " disclosed person; Or as No. 20070242054A1st, U.S. Patent Publication, be entitled as " light-penetrating type touching control panel and manufacture method (Light transmission touch panel and manufacturing methodthereof) thereof " disclosed person.As shown in the figure, this structure 9 from bottom to top comprises thin film transistor (TFT) (TFT) substrate 1, liquid crystal (LC) layer 2, counter electrode (common electrode) layer 3, color blocking (color resist, CR) layer 4, colorized optical filtering (CF) substrate 5, sensing electrode layer 6 and polaroid 7 successively.For this kind of traditional liquid crystal touch panel structure provided 9, due to its counter electrode layer 3 and sensing electrode layer 6 all position above liquid crystal layer 2, therefore caused background capacitance value (backgroundcapacitance) is very high, interference can be caused to sensing electrode layer 6, reduce touch-control usefulness and the precision of liquid crystal touch panel.Moreover for traditional liquid crystal touch panel structure provided 9, the electric field in liquid crystal layer 12 also can have influence on touch-control usefulness and the precision of sensing electrode layer 6.
In view of the usefulness of traditional liquid crystal contact panel and precision cannot promote, therefore need the liquid crystal touch panel proposing a kind of novelty badly, in order to promote touch-control usefulness and precision.
As can be seen here, above-mentioned existing liquid crystal display with in use in structure, obviously still has inconvenience and defect, and is urgently further improved.In order to solve above-mentioned Problems existing, relevant manufactures there's no one who doesn't or isn't seeks solution painstakingly, but have no applicable design for a long time to be completed by development, and common product does not have appropriate structure to solve the problem, this is obviously the anxious problem for solving of relevant dealer always.Therefore how to found a kind of novel plane conversion formula liquid crystal display with touch controllable function, one of current important research and development problem of real genus, also becomes the target that current industry pole need be improved.
Summary of the invention
The object of the invention is to, propose a kind of plane conversion formula (IPS) liquid crystal display of tool touch controllable function, its structure can promote touch-control usefulness and precision widely.In addition, the present invention also discloses the project organization of various sensing electrode layer.In addition, the present invention also discloses the part stratum substitute of liquid crystal display or is common in sensing electrode layer.Moreover the present invention also proposes to use barrier (shielding) layer to reduce the electric field of liquid crystal layer to the image of sensing electrode layer.
The object of the invention to solve the technical problems adopts following technical scheme to realize.According to a kind of plane conversion formula liquid crystal display (In-PlanSwitching LCD) with touch controllable function that the present invention proposes, comprise: a liquid crystal layer; One active-matrix transistor base, is positioned at below this liquid crystal layer; One electrode pair (electrode pair), be arranged on this active-matrix transistor base, this electrode pair comprises a pixel electrode (pixel electrode) and counter electrode (commonelectrode), wherein produces side to horizontal component of electric field to control the rotation of the liquid crystal of this liquid crystal layer between this pixel electrode and this counter electrode; One colorized optical filtering (CF) substrate, is positioned at above this liquid crystal layer; And a sensing electrode layer, be arranged at above this colored optical filtering substrates.
Object of the present invention and solve its technical matters and can also be further achieved by the following technical measures.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer comprises: one first axial electrode layer, it comprises multiple first sensing electrode, and first axially, is connected with the first connection wire between this adjacent first sensing electrode; And one second axial electrode layer, it comprises multiple second sensing electrode, and second axially, is connected with the second connection wire between this adjacent second sensing electrode; Wherein, corresponding this first connects between wire and this second connection wire is electric insulation.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned axial electrode layer and this second axial electrode layer are positioned at different aspects, and have an insulation course between this first axial electrode layer and this second axial electrode layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode and the second sensing electrode are positioned at identical aspect; First connect wire at this and second is connected overlapping region between wire with this, an insulation block is set, second be connected wire electric insulation each other to make this first connection wire with this.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode and the second sensing electrode are positioned at identical aspect; One insulation course is used for avoiding the first connection wire and second to connect the conducting because of contact of wire overlay region; This insulation course is positioned at the first sensing electrode place and has a through hole (viahole), and first connects wire is connected with the first sensing electrode by this through hole.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer comprises multiple separate sensing electrode arranged side by side, and each these sensing electrode two ends is connected to wire.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer comprises: the multiple first axial separate microscler first sensing electrode side by side; Multiple second axial separate microscler second sensing electrode side by side; Wherein, be electric insulation between this microscler first sensing electrode, this microscler second sensing electrode.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, it more comprises a barrier (shielding) layer, between this sensing electrode layer and this liquid crystal layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned barrier layer is light shield layer (BM).
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of plane conversion formula liquid crystal display (In-PlanSwitching LCD) with touch controllable function that the present invention proposes, comprise: a liquid crystal layer; One active-matrix transistor base, is positioned at below this liquid crystal layer; One electrode pair (electrode pair), be arranged on this active-matrix transistor base, this electrode pair comprises a pixel electrode (pixel electrode) and counter electrode (commonelectrode), wherein produces side to horizontal component of electric field to control the rotation of the liquid crystal of this liquid crystal layer between this pixel electrode and this counter electrode; One colorized optical filtering (CF) substrate, is positioned at above this liquid crystal layer; And a sensing electrode layer, be arranged between this colored optical filtering substrates and this liquid crystal layer.
Object of the present invention and solve its technical matters and can also be further achieved by the following technical measures.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer comprises: one first axial electrode layer, it comprises multiple first sensing electrode, and first axially, is connected with the first connection wire between this adjacent first sensing electrode; And one second axial electrode layer, it comprises multiple second sensing electrode, and second axially, is connected with the second connection wire between this adjacent second sensing electrode; Wherein, corresponding this first connects between wire and this second connection wire is electric insulation.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned connection wire is light shield layer (BM).
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned axial electrode layer is light shield layer (BM).
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer is light shield layer (BM).
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned axial electrode layer and this second axial electrode layer are positioned at different aspects, and have an insulation course between this first axial electrode layer and this second axial electrode layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned insulation course is color blocking (CR) layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode and the second sensing electrode are positioned at identical aspect; First connect wire in this and second is connected overlapping region between wire with this, an insulation block is set, second be connected wire electric insulation each other to make this first connection wire with this.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned insulation block is color blocking (CR) layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode and the second sensing electrode are positioned at identical aspect; One insulation course is used for avoiding the first connection wire and second to connect the conducting because of contact of wire overlay region; This insulation course is positioned at the first sensing electrode place and has a through hole (via hole), and first connects wire is connected with the first sensing electrode by this through hole.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned insulation course is color blocking (CR) layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer comprises multiple separate sensing electrode arranged side by side, and each these sensing electrode two ends is connected to wire.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode compound light shield layer (BM) and transparency conducting layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned sensing electrode layer comprises: the multiple first axial separate microscler first sensing electrode side by side; Multiple second axial separate microscler second sensing electrode side by side; Wherein, be electric insulation between this microscler first sensing electrode, this microscler second sensing electrode.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, it more comprises a barrier (shielding) layer, between this sensing electrode layer and this liquid crystal layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned barrier layer is light shield layer (BM).
The object of the invention to solve the technical problems adopts following technical scheme to realize in addition again.According to a kind of plane conversion formula liquid crystal display (In-PlanSwitching LCD) with touch controllable function that the present invention proposes, comprise: a liquid crystal layer; One active-matrix transistor base, is positioned at below this liquid crystal layer; One electrode pair (electrode pair), be arranged on this active-matrix transistor base, this electrode pair comprises a pixel electrode (pixel electrode) and counter electrode (commonelectrode), wherein produces side to horizontal component of electric field to control the rotation of the liquid crystal of this liquid crystal layer between this pixel electrode and this counter electrode; One colorized optical filtering (CF) substrate, is positioned at above this liquid crystal layer; One first sensing electrode layer, is arranged between this colorized optical filtering (CF) substrate and this liquid crystal layer; And one second sensing electrode layer, be arranged at above this colored optical filtering substrates.
Object of the present invention and solve its technical matters and can also be further achieved by the following technical measures.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode layer: comprise one first axial electrode layer, it comprises multiple first sensing electrode, and first axially, is connected with the first connection wire between this adjacent first sensing electrode; The second above-mentioned sensing electrode layer comprises one second axial electrode layer, and it comprises multiple second sensing electrode, and in second axially, is connected with the second connection wire between this adjacent second sensing electrode.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode layer comprises the multiple first axial separate microscler first sensing electrode side by side; This second sensing electrode layer comprises the multiple second axial separate microscler second sensing electrode side by side.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned connection wire is light shield layer (BM).
The aforesaid plane conversion formula liquid crystal display with touch controllable function, the first wherein above-mentioned sensing electrode layer is light shield layer (BM).
The aforesaid plane conversion formula liquid crystal display with touch controllable function, it more comprises a barrier (shielding) layer, between this sensing electrode layer and this liquid crystal layer.
The aforesaid plane conversion formula liquid crystal display with touch controllable function, wherein above-mentioned barrier layer is light shield layer (BM).
The present invention compared with prior art has obvious advantage and beneficial effect.From above technical scheme, main technical content of the present invention is as follows:
In order to achieve the above object, the invention provides a kind of plane conversion formula liquid crystal display with touch controllable function, mainly comprise liquid crystal layer, active-matrix transistor base, colorized optical filtering (CF) substrate and the sensing electrode layer of (electrode pair) (that is pixel electrode and counter electrode) that be provided with electrode pair.According to a first embodiment of the present invention, sensing electrode layer is arranged at above colored optical filtering substrates.According to a second embodiment of the present invention, sensing electrode layer is arranged at below colored optical filtering substrates.According to a third embodiment of the present invention, sensing electrode layer is divided into two parts and is arranged at the upper and lower of colored optical filtering substrates respectively.
By technique scheme, the plane conversion formula liquid crystal display that the present invention has touch controllable function at least has following advantages and beneficial effect: according to the features of this invention, sensing electrode layer can comprise multi-layered electrode layer, or comprises single-layer electrodes layer.According to another feature of the present invention, in some embodiments, the connection wire in sensing electrode layer can share with light shield layer (BM), and insulation course then can share with color blocking (CR) layer.According to the another feature of the present invention, barrier layer can be used with the electric field influence avoiding sensing electrode layer to be subject to liquid crystal layer.Wherein, barrier layer can share with light shield layer (BM).
In sum, the present invention can promote touch-control usefulness and degree of accuracy.The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 shows traditional liquid crystal contact panel schematic diagram.
Fig. 2 shows plane conversion formula (I PS) the liquid crystal display schematic diagram with touch controllable function of first embodiment of the invention.
Fig. 3 shows plane conversion formula (I PS) the liquid crystal display schematic diagram with touch controllable function of second embodiment of the invention.
Fig. 4 shows plane conversion formula (I PS) the liquid crystal display schematic diagram with touch controllable function of third embodiment of the invention.
Fig. 5 A shows a kind of vertical view of electrode pattern of multi-layered electrode layer.
Fig. 5 B shows a kind of vertical view of electrode pattern of single-layer electrodes layer.
Fig. 5 C shows the vertical view of the electrode pattern of another kind of multi-layered electrode layer.
Fig. 6 A, Fig. 6 B show a kind of multi-layered electrode Rotating fields, and the sensing electrode of two axis lays respectively at different aspect schematic diagram.
Fig. 7 A, Fig. 7 B show another kind of multi-layered electrode Rotating fields, and the sensing electrode of two axis is positioned at identical aspect schematic diagram.
Fig. 7 C shows the change structural representation of Fig. 7 A.
Fig. 7 D shows the sectional view along profile line 7D-7D ' in Fig. 7 C.
Fig. 8 A, Fig. 8 B show another multi-layered electrode Rotating fields, and the sensing electrode of two axis is also be positioned at identical aspect schematic diagram.
Fig. 8 C shows the change structural representation of Fig. 8 A.
Fig. 8 D shows the sectional view along profile line 8D-8D ' in Fig. 8 C.
Fig. 9 A, Fig. 9 B show a kind of single-layer electrodes Rotating fields schematic diagram.
Figure 10 shows the structural representation of the touch control display using barrier (shielding) layer.
1: thin film transistor (TFT) (TFT) substrate 2: liquid crystal (LC) layer
3: counter electrode layer 4: color blocking (CR) layer
5: colorized optical filtering (CF) substrate 6: sensing electrode layer
7: polaroid 9: liquid crystal touch panel
10: thin film transistor (TFT) (TFT) substrate 12: liquid crystal (LC) layer
14: protection (OC) layer 16: color blocking (CR) layer
18: colorized optical filtering (CF) substrate
18A: colored optical filtering substrates first (on) surface
18B: colored optical filtering substrates second (under) surface
20: sensing electrode layer 22: polaroid
24: barrier (shielding) layer 26: insulation course
100A:(first embodiment) touch control display
100B:(second embodiment) touch control display
100C:(the 3rd embodiment) touch control display
201A: the first sensing electrode 201B: the first connects wire
202A: the second sensing electrode 202B: the second connects wire
203A: microscler sensing electrode 203B: wire
204: insulation course 205: through hole (via hole)
206: microscler first sensing electrode 207: microscler second sensing electrode
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of plane conversion formula liquid crystal display with touch controllable function proposed according to the present invention, structure, feature and effect thereof, be described in detail as follows.
Aforementioned and other technology contents, Characteristic for the present invention, can clearly present in the detailed description of following cooperation with reference to graphic preferred embodiment.By the explanation of embodiment, when can to the present invention for the technological means reaching predetermined object and take and effect obtain one more deeply and concrete understanding, however institute's accompanying drawings be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
Refer to shown in Fig. 2, plane conversion formula (in-plane switching, IPS) the liquid crystal display 100A with touch controllable function of display first embodiment of the invention, hereinafter referred to as " touch control display ".Alleged in this manual orientation " on " and D score only in order to represent relative position relation; For this instructions graphic for, the top of touch control display is comparatively close to beholder, and below is then comparatively away from beholder.Touch controllable function disclosed by the embodiment of the present invention adopts capacitance touching control principle, and the electric capacitance change produced when it touches contact panel by finger or pointer, thus senses touch location.
The structure of the touch control display disclosed by the embodiment of the present invention and display mode belong to plane conversion formula (IPS), one of this place different from other mode display is: counter electrode (common electrode) layer of plane conversion formula liquid crystal display and pixel electrode (pixel electrode) are all positioned at the below of liquid crystal (LC) layer, and the counter electrode layer of other mode LCDs and pixel electrode are then the upper and lowers laying respectively at liquid crystal layer.According to this kind of special construction of plane conversion formula liquid crystal display, its background capacitance value is minimized, is thus minimized or avoids the interference for touch controllable function, thus promote touch-control usefulness and precision.
In a first embodiment; as shown in Figure 2; touch control display 100A from bottom to top comprises active-matrix transistor (such as thin film transistor (TFT) (TFT)) substrate 10, liquid crystal (LC) layer 12, protection (over coating successively; OC) layer 14, color blocking (color resist, CR) layer 16, colorized optical filtering (CF) substrate 18, sensing electrode (sensing electrode) layer 20 and polaroid 22.Other extra layers can be inserted according to various application or functional requirement between above-mentioned each layer.In details of the words, thin film transistor (TFT) (TFT) substrate 10 is provided with electrode pair (electrode pair), it comprises pixel electrode (pixel electrode) and counter electrode (common electrode), produces side between the two to horizontal component of electric field to control the rotation of the liquid crystal of liquid crystal layer 12.As previously mentioned, this can form the display mode of plane conversion formula (I PS).Protection (OC) layer 14 is mainly in order to avoid the ion of color blocking layer 16 enters the pollution that liquid crystal layer 12 causes.Protective seam 14 can use acryl resin (acrylresin), epoxy resin (epoxy resin) or other materials.Color blocking (CR) layer 16 can use polyvinyl alcohol (PVA) (Poly-vinyl al cohol, PVA), acryl pigment (or other pigment or dyestuff) to form red, green, blue (RGB) colored pattern.Colorized optical filtering (CF) substrate 18 is a transparency carrier, it can be glass, polymer plastic glue material (such as polycarbonate (Polycarbonate, PC), Polyvinylchloride (Polyvinylchloride, PVC)) or other materials.Polaroid 22 can use polyvinyl alcohol (PVA) (PVA) or other materials.Will in subsequent detailed as the structure of sensing electrode layer 20 and material.
One of feature of first embodiment (Fig. 2) is: with regard to structure, and sensing electrode layer 20 is arranged between colored optical filtering substrates 18 and polaroid 22, that is, be positioned at above colored optical filtering substrates 18.In details of the words, sensing electrode layer 20 be positioned at colored optical filtering substrates 18 first (on) above surperficial 18A, color blocking (CR) layer 16 be then be positioned at colored optical filtering substrates 18 second (under) below surperficial 18B.
Fig. 3 shows plane conversion formula (I PS) the liquid crystal display 100B with touch controllable function of second embodiment of the invention.In the present embodiment, touch control display 100B from bottom to top comprises active-matrix transistor (such as thin film transistor (TFT) (TFT)) substrate 10, liquid crystal (LC) layer 12, protection (OC) layer 14, sensing electrode layer 20, colorized optical filtering (CF) substrate 18 and polaroid 22 successively; And color blocking (CR) layer 16 can be positioned between protection (OC) layer 14/ sensing electrode layer 20; can be positioned between sensing electrode layer 20/ colorized optical filtering (CF) substrate 18; also the inside of sensing electrode layer 20 can be positioned at, as shown in graphic each arrow.Other extra layers can be inserted according to various application or functional requirement between above-mentioned each layer.
One of feature of second embodiment (Fig. 3) is: with regard to structure, and sensing electrode layer 20 is arranged between colored optical filtering substrates 18 and protection (OC) layer 14, that is, be positioned at below colored optical filtering substrates 18.In details of the words, sensing electrode layer 20 be arranged at colored optical filtering substrates 18 second (under) below surperficial 18B, polaroid 22 be then be arranged at colored optical filtering substrates 18 first (on) above surperficial 18A.
Fig. 4 shows plane conversion formula (I PS) the liquid crystal display 100C of the tool touch controllable function of third embodiment of the invention.In the present embodiment, touch control display 100C from bottom to top comprises active-matrix transistor (such as thin film transistor (TFT) (TFT)) substrate 10, liquid crystal (LC) layer 12, protection (OC) layer 14, first sensing electrode layer 20A, colorized optical filtering (CF) substrate 18, second sensing electrode layer 20B and polaroid 22 successively; And color blocking (CR) layer 16 can be positioned between protection (OC) layer 14/ first sensing electrode layer 20A, also can be positioned between the first sensing electrode layer 20A/ colorized optical filtering (CF) substrate 18, as shown in graphic each arrow.Other extra layers can be inserted according to various application or functional requirement between above-mentioned each layer.
One of feature of 3rd embodiment (Fig. 4) is: with regard to structure; sensing electrode layer is divided into two parts: the first sensing electrode layer 20A and the second sensing electrode layer 20B, it is arranged between protection (OC) layer 14/ colored optical filtering substrates 18 and between colored optical filtering substrates 18/ polaroid 22 respectively.In details of the words, the second sensing electrode layer 20B be arranged at colored optical filtering substrates 18 first (on) above surperficial 18A, the first sensing electrode layer 20A be then be arranged at colored optical filtering substrates 18 second (under) below surperficial 18B.
The feature of more above-mentioned first embodiment, the second embodiment and the 3rd embodiment, in brief, the sensing electrode layer 20 of the first embodiment (Fig. 2) is the top being arranged at colored optical filtering substrates 18, the sensing electrode layer 20 of the second embodiment (Fig. 3) is the below being arranged at colored optical filtering substrates 18, and the first/the second sensing electrode layer 20A, 20B of the 3rd embodiment (Fig. 4) is arranged at the upper and lower side of colored optical filtering substrates 18 respectively.
About the sensing electrode layer (20,20A, 20B) of above-described embodiment (Fig. 2, Fig. 3, Fig. 4), it mainly comprises multilayer or single-layer electrodes layer, and each electrode layer is then containing multiple sensing electrode.Electrode layer is generally electrically conducting transparent material, such as (but not being defined as) tin indium oxide (Indium Tin Oxide, ITO), aluminum zinc oxide (Aluminum Zinc Oxide, AZO) or indium zinc oxide (Indium ZincOxide, IZO).The vertical view of Fig. 5 A illustrates a kind of electrode pattern of multi-layered electrode layer, and it consists predominantly of the second sensing electrode 202A of the first sensing electrode 201A and second axial (such as Y-axis) of first axial (such as X axis).Wherein, between the adjacent first sensing electrode 201A of the first axis, there is the first connection wire (also can be described as bridging conductor (bridge)) 201B, and have the second connection wire 202B between the adjacent second sensing electrode 202A of the second axis.In this illustration, sensing electrode 201A, 202A are argyle design, but are not limited to this, also can use other character pattern.In general, for the first axial sensing electrode 201A and these two electrode layers of the second axial sensing electrode 202A, no matter whether it is positioned at same plane, need insulant between connection wire 201B and 202B overlapped each other, in order to avoid electrically conducting each other.By the second axial sensing electrode (202A, 202B) and the first axial sensing electrode (201A, 201B), can in order to detect the X and Building Y mark that touch a little respectively.Multi-layered electrode layer pattern framework illustrated in Fig. 5 A goes for the sensing electrode layer 20 in the middle of the touch control display 100A of the first embodiment (Fig. 2) or the touch control display 100B of the second embodiment (Fig. 3).In addition, the first axial sensing electrode (201A, 201B), the second axial sensing electrode (202A, 202B) then can be applicable to first, second sensing electrode layer 20A, the 20B in the middle of the touch control display 100C of the 3rd embodiment (Fig. 4) respectively.In this manual, the first axis, X axis, the word such as first can use in intercommunication; Second axis, Y-axis, the word such as second also can use in intercommunication.Above-mentioned connection wire 201B or the first axial sensing electrode 201A can use light shield layer (BM) to replace.
The vertical view of Fig. 5 B illustrates a kind of electrode pattern of single-layer electrodes layer, its two ends consisting predominantly of multiple separate arranged side by side microscler sensing electrode 203A, each sensing electrode 203A are connected to wire 203B (the connection wire at two ends also can be the integrated wire be electrically connected).When some sensing electrode 203A are touched, it touches and a little can form different resistance values relative to the two ends of this sensing electrode 203A, is detected Building X mark by this; In addition, Building Y mark is detected according to the sensing electrode 203A touching a place.Single-layer electrodes layer pattern framework illustrated in Fig. 5 B goes for the sensing electrode layer 20 in the middle of the touch control display 100A of the first embodiment (Fig. 2) or the touch control display 100B of the second embodiment (Fig. 3).
The vertical view of Fig. 5 C illustrates the electrode pattern of another kind of multi-layered electrode layer, and it consists predominantly of separate microscler first sensing electrode 206 and second axial (such as Y-axis) separate microscler second sensing electrode 207 side by side side by side of first axial (such as X axis).By microscler first sensing electrode 206 and microscler second sensing electrode 207, can in order to detect the Y and Building X mark that touch a little respectively.Insulant is needed, in order to avoid electrically conducting each other between these two electrode layers 206,207.Multi-layered electrode layer pattern framework illustrated in Fig. 5 C is applicable to the sensing electrode layer 20 in the middle of the touch control display 100A of the first embodiment (Fig. 2) or the touch control display 100B of the second embodiment (Fig. 3).In addition, microscler first sensing electrode 206, microscler second sensing electrode 207 can be applicable to first, second sensing electrode layer 20A, the 20B in the middle of the touch control display 100C of the 3rd embodiment (Fig. 4) respectively.
About above-mentioned electrode layer (20,20A, 20B) pattern framework, some different structural design practices will be illustrated below.Fig. 6 A, Fig. 6 B show a kind of multi-layered electrode Rotating fields, and the sensing electrode of two axis lays respectively at different aspects.Fig. 6 A shows the partial enlarged drawing of Fig. 5 A, and Fig. 6 B then shows in Fig. 6 A along the sectional view that profile line 6B-6B ' sees.In the drawings, Y-axis electrode layer (202A, 202B) is positioned at upper strata, and X axis electrode layer (201A, 201B) is then positioned at lower floor.Upper and lower two-layer between there is an insulation course 204, axially connect wire 201B, 202B electric insulation each other to make two.In the second embodiment (Fig. 3), this insulation course 204 can use (insulation) color blocking (CR) layer 16 to replace and share.Although the electrode illustrated in Fig. 6 B is from bottom to top respectively X axis electrode layer (201A, 201B), insulation course 204, Y-axis electrode layer 202A, but, also can be formed reverse order structure (that is, from bottom to top be respectively Y-axis electrode layer, insulation course, X axis electrode layer), its correlative type and explanation do not repeat at this.
Fig. 7 A, Fig. 7 B show another kind of multi-layered electrode Rotating fields, and the sensing electrode of two axis is positioned at identical aspect.Fig. 7 A shows the partial enlarged drawing of Fig. 5 A, and Fig. 7 B then shows in Fig. 7 A along the sectional view that profile line 7B-7B ' sees.In the drawings, X axis electrode layer (201A) and Y-axis electrode layer (202B) are positioned at identical aspect.Insulation course 204 uses the form of insulation block (isolationisland) to cover Y-axis electrode layer (202B), axially connects wire 201B, 202B electric insulation each other to make two.Conductive material (such as metal, tin indium oxide (I TO)) is then covered, as connection (or bridge joint) the wire 201B of X axis above insulation course 204.In the second embodiment (the 3rd figure), above-mentioned insulation course 204 can use (insulation) color blocking (CR) layer 16 to replace and share.Above-mentioned connection wire 201B then can use (conduction) light shield layer (blackmatrix, BM) to replace.Although the electrode illustrated in Fig. 7 B is from bottom to top respectively X/Y axial electrode layer (201A, 202B), insulation course 204, connection wire 201B, but, also can be formed reverse order structure (that is, from bottom to top be respectively and connect wire 201B, insulation course 204, X/Y axial electrode layer (201A, 202B), its correlative type and explanation do not repeat at this.
Fig. 7 C shows the change structure of Fig. 7 A.With Fig. 7 A unlike, the connection wire 201B of X axis is continuous linear, is communicated in the X axis electrode layer 201A of same row.X axis connection wire 201B is connected wire 202B and can uses identical or different material with Y-axis.Fig. 7 D then shows in Fig. 7 C along the sectional view that profile line 7D-7D ' sees.
Fig. 8 A, Fig. 8 B show another multi-layered electrode Rotating fields, and the sensing electrode of two axis is also be positioned at identical aspect.Fig. 8 A shows the partial enlarged drawing of Fig. 5 A, and Fig. 8 B then shows in Fig. 8 A along the sectional view that profile line 8B-8B ' sees.In the drawings, X axis electrode layer (201A) and Y-axis electrode layer (202B) are positioned at identical aspect.Insulation course 204 covers X/Y axial electrode layer (201A, 202B) all sidedly, the overlay region conducting because of contact connecting wire 201B in order to avoid X axis and to be connected wire 202B with Y-axis.Insulation course 204 is positioned at X axis sensing electrode 201A place and has a through hole (viahole) 205, and X axis connection wire 201B (such as metal, tin indium oxide (ITO)) is namely connected with X axis sensing electrode 201A by through hole 205.In the second embodiment (Fig. 3), above-mentioned insulation course 204 can use (insulation) color blocking (CR) layer 16 to replace and share.Above-mentioned connection wire 201B then can use (conduction) light shield layer (BM) to replace.Although the electrode illustrated in Fig. 8 B is from bottom to top respectively X/Y axial electrode layer (201A, 202B), insulation course 204, connection wire 201B, but, also can be formed reverse order structure (that is, from bottom to top be respectively and connect wire 201B, insulation course 204, X/Y axial electrode layer (201A, 202B), its correlative type and explanation do not repeat at this.
Fig. 8 C shows the change structure of Fig. 8 A.With Fig. 8 A unlike, the connection wire 201B of X axis is continuous linear, is communicated in the X axis electrode layer 201A of same row.X axis connection wire 201B is connected wire 202B and can uses identical or different material with Y-axis.Fig. 8 D then shows in Fig. 8 C along the sectional view that profile line 8D-8D ' sees.
Fig. 9 A, Fig. 9 B show a kind of single-layer electrodes Rotating fields.Fig. 9 A shows the partial enlarged drawing of Fig. 5 B, and Fig. 9 B then shows in Fig. 9 A along the sectional view that profile line 9B-9B ' sees.In the drawings, the two ends of sensing electrode 203A are connected to wire 203B (the connection wire at two ends also can be the integrated wire be electrically connected).Usually, the resistance value of wire 203B material is slightly lower than the resistance value of sensing electrode 203A material.Such as, wire 203B uses metal, and sensing electrode 203A then uses tin indium oxide (I TO).In the second embodiment (Fig. 3), the composition of above-mentioned sensing electrode 203A can compound light shield layer (BM) and transparency conducting layer.
According to another characteristic of the invention, additionally can use at least one barrier (shielding) layer 24, it is positioned between sensing electrode layer (20,20A, 20B) and liquid crystal (LC) layer 12, sensing electrode layer (20,20A, 20B) is had influence on, touch display structure as shown in Figure 10 in order to avoid liquid crystal layer 12 internal electric field.In order to avoid electrically communicating between barrier layer 24 and sensing electrode layer (20,20A, 20B), an insulation course 26 can be used between the two, such as glass, colour cell (CR) layer or other isolation material.Because light shield layer has netted (mesh) structure, can be used as the use of barrier electric field when it reaches a suitable density.Therefore, above-mentioned barrier layer 24 also can use light shield layer (BM) to replace and share.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art are not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (13)
1. there is a plane conversion formula liquid crystal display for touch controllable function, it is characterized in that it comprises:
One liquid crystal layer;
One active-matrix transistor base, is positioned at below this liquid crystal layer;
One electrode pair, be arranged on this active-matrix transistor base, this electrode pair comprises a pixel electrode and counter electrode, wherein produces side to horizontal component of electric field to control the rotation of the liquid crystal of this liquid crystal layer between this pixel electrode and this counter electrode;
One colored optical filtering substrates, is positioned at above this liquid crystal layer;
One sensing electrode layer, is arranged between this colored optical filtering substrates and this liquid crystal layer, and wherein this sensing electrode layer is arranged at the surface of this colored optical filtering substrates, and wherein this sensing electrode layer comprises:
One first axial electrode layer, it comprises multiple first sensing electrode, and first axially, is connected with the first connection wire between this adjacent first sensing electrode; And
One second axial electrode layer, it comprises multiple second sensing electrode, and second axially, is connected with the second connection wire between this adjacent second sensing electrode;
Wherein, corresponding this first connects between wire and this second connection wire is electric insulation; And
One conduction eclipser barrier layer, between this sensing electrode layer and this liquid crystal layer, wherein this conduction eclipser barrier layer is positioned at below this sensing electrode layer, and insulate with this sensing electrode layer, this conduction eclipser barrier layer has reticulate texture in order to shading and this sensing electrode layer of electric field influence avoiding this liquid crystal layer.
2. the plane conversion formula liquid crystal display with touch controllable function according to claim 1, is characterized in that the first wherein above-mentioned connection wire is light shield layer.
3. the plane conversion formula liquid crystal display with touch controllable function according to claim 1, is characterized in that the first wherein above-mentioned axial electrode layer is light shield layer.
4. the plane conversion formula liquid crystal display with touch controllable function according to claim 1, is characterized in that wherein above-mentioned sensing electrode layer is light shield layer.
5. the plane conversion formula liquid crystal display with touch controllable function according to claim 1, it is characterized in that the first wherein above-mentioned axial electrode layer and this second axial electrode layer are positioned at different aspects, and between this first axial electrode layer and this second axial electrode layer, there is an insulation course.
6. the plane conversion formula liquid crystal display with touch controllable function according to claim 5, is characterized in that wherein above-mentioned insulation course is color blocking layer.
7. the plane conversion formula liquid crystal display with touch controllable function according to claim 1, is characterized in that the first wherein above-mentioned sensing electrode and the second sensing electrode are positioned at identical aspect; First connect wire in this and second is connected overlapping region between wire with this, an insulation block is set, second be connected wire electric insulation each other to make this first connection wire with this.
8. the plane conversion formula liquid crystal display with touch controllable function according to claim 7, is characterized in that wherein above-mentioned insulation block is color blocking layer.
9. the plane conversion formula liquid crystal display with touch controllable function according to claim 1, is characterized in that the first wherein above-mentioned sensing electrode and the second sensing electrode are positioned at identical aspect; One insulation course is used for avoiding the first connection wire and second to connect the conducting because of contact of wire overlay region; This insulation course is positioned at the first sensing electrode place and has a through hole, and first connects wire is connected with the first sensing electrode by this through hole.
10. the plane conversion formula liquid crystal display with touch controllable function according to claim 9, is characterized in that wherein above-mentioned insulation course is color blocking layer.
The 11. plane conversion formula liquid crystal display with touch controllable function according to claim 1, it is characterized in that wherein above-mentioned sensing electrode layer comprises multiple separate sensing electrode arranged side by side, each these sensing electrode two ends is connected to wire.
The 12. plane conversion formula liquid crystal display with touch controllable function according to claim 11, is characterized in that wherein above-mentioned sensing electrode compound light shield layer and transparency conducting layer.
The 13. plane conversion formula liquid crystal display with touch controllable function according to claim 1, is characterized in that wherein above-mentioned sensing electrode layer comprises:
Multiple first axial separate microscler first sensing electrode side by side;
Multiple second axial separate microscler second sensing electrode side by side;
Wherein, be electric insulation between this microscler first sensing electrode, this microscler second sensing electrode.
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| KR101735568B1 (en) * | 2010-03-30 | 2017-05-15 | 엘지디스플레이 주식회사 | Color filter array substrate, liquid crystal display device comprising the same, and method for manufacturing the same |
| JP5475187B2 (en) * | 2011-04-06 | 2014-04-16 | シャープ株式会社 | Wiring connection structure, parallax barrier substrate and touch panel |
| CN102707832A (en) * | 2012-03-16 | 2012-10-03 | 京东方科技集团股份有限公司 | Method for manufacturing touch screen display, touch screen display and terminal |
| CN103309070B (en) * | 2012-09-24 | 2016-08-17 | 上海天马微电子有限公司 | Touch control type liquid crystal display device |
| CN103278955B (en) * | 2012-12-14 | 2015-11-11 | 上海天马微电子有限公司 | Color film substrate and touch liquid crystal display device |
| TWI481933B (en) * | 2012-12-28 | 2015-04-21 | Ye Xin Technology Consulting Co Ltd | Touch display device |
| CN103970378B (en) * | 2013-01-31 | 2018-03-02 | 宸鸿科技(厦门)有限公司 | Touch control display apparatus |
| KR102141459B1 (en) * | 2013-03-22 | 2020-08-05 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Liquid crystal display device |
| CN103197463B (en) * | 2013-03-26 | 2015-06-17 | 京东方科技集团股份有限公司 | Color film substrate and production method, touch screen and display device thereof |
| CN103927046B (en) * | 2013-12-30 | 2017-01-04 | 上海天马微电子有限公司 | Touch display panel and touch display device |
| CN104679343B (en) | 2015-03-26 | 2017-07-28 | 京东方科技集团股份有限公司 | A kind of touch control display apparatus, touch panel, conductive bridging method and bridging structure |
| CN104865728A (en) * | 2015-04-29 | 2015-08-26 | 重庆京东方光电科技有限公司 | Color film substrate, manufacturing method of color film substrate, touch screen and display device |
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