CN105955543A - Display substrate and display apparatus - Google Patents
Display substrate and display apparatus Download PDFInfo
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- CN105955543A CN105955543A CN201610384170.3A CN201610384170A CN105955543A CN 105955543 A CN105955543 A CN 105955543A CN 201610384170 A CN201610384170 A CN 201610384170A CN 105955543 A CN105955543 A CN 105955543A
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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
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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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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Abstract
The invention discloses a display substrate and a display apparatus, and belongs to the technical field of display. The display substrate comprises a substrate and a plurality of induction electrodes arranged on the substrate, wherein each induction electrode adopts an annular structure with an opening; and one end of the annular structure is connected with a reference voltage, and the other end of the annular structure is connected with a detection circuit. A coil is formed through the induction electrodes adopting the annular structures and arranged on the substrate, and an induction signal emitted by an electromagnetic touch pen can be induced to realize a touch induction function, so that an electromagnetic induction function is integrated on the display substrate.
Description
Technical field
The present invention relates to Display Technique field, particularly to a kind of display base plate and display device.
Background technology
Along with input technology and the development of Display Technique, increasing liquid crystal display (Liquid Crystal Display, LCD) it is provided with hand-write input function, directly can write on LCD by hand-write input function and paint so that the more diversification of the function of LCD.
Handwriting input can be generally divided into resistance-type, condenser type and induction according to realizing principle.Wherein, induction hand-write input function can use electromagnetic touch pen and induction handwriting pad to realize, and the electromagnetic signal that induction handwriting pad is sent by faradism magnetic-type pointer determines input position.Induction handwriting pad is arranged on backlight module usually used as independent parts, such as, be arranged on the back side of backlight module, thus be attached in LCD.
Owing to needing to increase extra parts on a liquid crystal display, so that it is relatively costly, and, after backlight module and induction handwriting pad fit together, due to the error of para-position, it is likely to result in input precision and declines, and then the yield of product is declined.
Summary of the invention
In order to solve to use extra parts realize induction input functional cost height and reduce the problem of product yield, embodiments provide a kind of display base plate and display device.Described technical scheme is as follows:
First aspect, provide a kind of display base plate, including: underlay substrate and the multiple induction electrodes being arranged on described underlay substrate, each described induction electrode is the circulus with an opening, one end of described circulus is used for accessing reference voltage, and the other end of described circulus is used for connection detection circuit.
In a kind of implementation of the embodiment of the present invention, described display base plate also includes multiple pixel regions that the array being arranged on described underlay substrate is arranged, the plurality of pixel region is divided into many groups, each described circulus is arranged around pixel region described in a group, and on the direction being perpendicular to described underlay substrate, described circulus is the most overlapping with any one of pixel region.
In the another kind of implementation of the embodiment of the present invention, described display base plate is color membrane substrates, and described pixel region is provided with colored filter.
Alternatively, described induction electrode is positioned at the described colored filter side away from described underlay substrate.
In the another kind of implementation of the embodiment of the present invention, described color membrane substrates also includes the black matrix being located between the pixel region of arbitrary neighborhood, and the projection on described underlay substrate of the described induction electrode is positioned at the projection on described underlay substrate of the described black matrix.
In the another kind of implementation of the embodiment of the present invention, described color membrane substrates also includes the first connecting line and the second connecting line that parallel interval arranges, one end of described circulus is connected with described first connecting line, and the other end of described circulus is connected with described second connecting line.
Preferably, described induction electrode is arranged with layer with described first connecting line and described second connecting line.
When realizing, described induction electrode, described first connecting line and described second connecting line can use metal to make.
Preferably, described color membrane substrates also includes being positioned at a plurality of jumper of different layers with described induction electrode, and every jumper is connected with a plurality of described first connecting line.
When realizing, described jumper uses transparent conductive material to make.
In the another kind of implementation of the embodiment of the present invention, described display base plate is array base palte, and described pixel region is provided with thin film transistor (TFT).
Alternatively, described array base palte includes that at least one of which in common electrode layer and light shield layer, described induction electrode include that at least one in the first induction electrode and the second induction electrode, described first induction electrode are arranged with layer with described common electrode layer；Described second induction electrode is arranged with layer with described light shield layer.
Further, described common electrode layer includes multiple electrode blocks that array is arranged, the corresponding one group of pixel region of each electrode block is arranged, and each described first induction electrode is arranged around a described electrode block.
When realizing, described first induction electrode can use transparent conductive material to make, and described second induction electrode can use metal to make.
In the another kind of implementation of the embodiment of the present invention, described array base palte also includes the first connecting line and the second connecting line that parallel interval arranges, described first connecting line is connected with one end of the circulus of described first induction electrode, and described second connecting line is connected with the other end of the circulus of described first induction electrode.
Further, described array base palte also includes that the source-drain electrode layer being located on described underlay substrate, described first connecting line, described second connecting line are arranged with layer with described source-drain electrode layer.
In another implementation of the embodiment of the present invention, described array base palte also includes the 3rd connecting line and the 4th connecting line that parallel interval arranges, described 3rd connecting line is connected with one end of the circulus of described second induction electrode, and described 4th connecting line is connected with the other end of the circulus of described second induction electrode.
When realizing, described 3rd connecting line, described 4th connecting line and described second induction electrode can be arranged with layer.
Preferably, described array base palte also includes the source-drain electrode layer be located on described underlay substrate and a plurality of jumper, and every described jumper is connected with a plurality of described 3rd connecting line, and described jumper is arranged with layer with described source-drain electrode layer.
Second aspect, it is provided that a kind of display device, described display device includes at least one display base plate provided for aforementioned first aspect in upper substrate and infrabasal plate, described upper substrate and described infrabasal plate.
The induction electrode of the circulus by being arranged on underlay substrate forms coil, the induced signal that can send with faradism magnetic-type pointer, realize touch-control sensing function, thus function of electromagnetic induction is integrated on display base plate, owing to induction electrode is integrated on display base plate, so need not arrange the extra parts for electromagnetic induction, provide cost savings, and, owing to induction electrode is formed directly on underlay substrate, it is high that the pattern of induction electrode forms precision, such that it is able to improve accuracy of detection.Furthermore, it is not necessary that the extra parts assembling electromagnetic induction and the step of display unit, improve the efficiency of product.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of display base plate that the embodiment of the present invention provides；
Fig. 2 a is the structural representation of a kind of color membrane substrates that the embodiment of the present invention provides；
Fig. 2 b is the layout schematic diagram of the induction electrode of color membrane substrates shown in Fig. 2 a；
Fig. 3 a is the structural representation of a kind of array base palte that the embodiment of the present invention provides；
Fig. 3 b is the layout schematic diagram of the induction electrode of array base palte shown in Fig. 3 a；
Fig. 4 is the structural representation of the another kind of array base palte that the embodiment of the present invention provides；
Fig. 5 is the structural representation of another array base palte that the embodiment of the present invention provides；
Fig. 6 is the Cleaning Principle schematic diagram of a kind of display base plate that the embodiment of the present invention provides；
Fig. 7 is the structural representation of the another kind of display device that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Fig. 1 is the structural representation of a kind of display base plate that the embodiment of the present invention provides, see Fig. 1, this display base plate includes: underlay substrate 10 and the multiple induction electrodes 11 being arranged on underlay substrate 10, each induction electrode 11 is the circulus with an opening, one end 11a of this circulus is used for accessing reference voltage, and the other end 11b of this circulus is used for connection detection circuit.
The induction electrode of the circulus by being arranged on underlay substrate forms coil, the induced signal that can send with faradism magnetic-type pointer, realize touch-control sensing function, thus function of electromagnetic induction is integrated on display base plate, owing to induction electrode is integrated on display base plate, so need not arrange the extra parts for electromagnetic induction, provide cost savings, and, owing to induction electrode is formed directly on underlay substrate, it is high that the pattern of induction electrode forms precision, such that it is able to improve accuracy of detection.Furthermore, it is not necessary that the extra parts assembling electromagnetic induction and the step of display unit, improve the efficiency of product.
As it is shown in figure 1, display base plate also includes multiple pixel regions 12 that the array being arranged on underlay substrate 10 is arranged, multiple pixel regions 12 are divided into many groups, and each circulus is arranged around one group of pixel region.On the direction being perpendicular to underlay substrate 10, this circulus is the most overlapping with any one pixel region 12.
The circulus of induction electrode is arranged around one group of pixel region, and on the direction being perpendicular to described underlay substrate, circulus is the most overlapping with any one pixel region, i.e. induction electrode is positioned at the lighttight region of display base plate, such that it is able to avoid induction electrode to affect the display effect of display base plate.
Wherein, underlay substrate 10 is typically transparent, can be glass substrate, plastic base etc..Induction electrode 11 can use metal to make, such as Al, Cu, Mo, Ti etc., the invention is not limited in this regard.
It should be noted that induction electrode layout on display base plate for convenience of description, induction electrode is drawn in the same plane with pixel region, but in actual application, pixel region and induction electrode may be located at same layer, it is also possible to be positioned at different layers.
The display base plate that the embodiment of the present invention provides can be color membrane substrates (as shown in Figure 2), it can also be array base palte (as shown in Figure 3-Figure 5), wherein, array base palte can be the array base palte of LCD, can also be Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) array base palte, it is also possible to be the array base palte for Electronic Paper.When display base plate is color membrane substrates, pixel region 12 is provided with colored filter.When display base plate is array base palte, pixel region 12 is provided with thin film transistor (TFT).
The structural representation of a kind of color membrane substrates that Fig. 2 a provides for the embodiment of the present invention.Referring to Fig. 2 a, as a example by color membrane substrates, the display base plate providing the embodiment of the present invention illustrates.As shown in Figure 2 a, this color membrane substrates includes: underlay substrate 20 and the multiple induction electrodes 21 being arranged on underlay substrate 20.Fig. 2 b is the arrangement schematic diagram of the induction electrode of color membrane substrates shown in Fig. 2 a.In conjunction with Fig. 2 b, each induction electrode 21 is the circulus with an opening, and one end 21a of this circulus is used for accessing reference voltage, and the other end 21b of this circulus is used for connection detection circuit.
Color membrane substrates also includes multiple pixel regions 22 that the array being arranged on underlay substrate 20 is arranged, each pixel region 22 can include three subpixel area 22a, 22b and 22c, being equipped with colored filter in each subpixel area, the colored filter in each subpixel area can send the light of a kind of color under the irradiation of backlight.Specifically, three subpixel area can be respectively red (Red) subpixel area, green (Green) subpixel area, blueness (Blue) subpixel area.Red subpixel areas is provided with Red lightscreening plate, only allows HONGGUANG to pass through.Green subpixel areas is provided with green color filter, only allows green glow to pass through.Blue subpixel areas is provided with blue color filter, only allows blue light to pass through.Colored filter can use color blocking material to make.
As shown in Figure 2 b, in the present embodiment, multiple pixel regions 22 are divided into many groups, and each circulus 21 is arranged around one group of pixel region.Often group pixel region can include one or more pixel region 22, and particular number can determine according to the size of resolution and display base plate.Such as, the area in the region in each circulus could be arranged to be multiplied by 4mm less than 4mm, to ensure the accuracy of detection of induction electrode.
It should be noted that in other embodiments, it is also possible to it is grouped in units of subpixel area.
On the direction being perpendicular to underlay substrate 20, this circulus is the most overlapping with any one pixel region 22, such that it is able to avoid induction electrode that the display effect of color membrane substrates is produced impact.
As shown in Figure 2 b, the circulus that each induction electrode 21 is rectangular.The circulus of rectangle includes four sides being sequentially connected with, article four, side is respectively first side 211, second side the 212, the 3rd side 213 and four side 214 according to the order of connection, wherein, first side 211 and the 3rd opposing parallel setting of side 213, second side 212 and the opposing parallel setting of four side 214, four side 214 is provided with opening 214a, and the both sides of opening 214a are the two ends of circulus 21.
In the present embodiment, color membrane substrates also includes the first connecting line 23 and the second connecting line 24 that parallel interval is arranged, one end 21a (i.e. accessing one end of reference voltage) of circulus is connected with the first connecting line 23, and other end 21b and second connecting line 24 of circulus connect.
Alternatively, the bearing of trend of the first connecting line 23 can be identical with the line direction of the pixel region that the array of color membrane substrates is arranged, or, the column direction of the pixel region that the bearing of trend of the first connecting line 23 can also be arranged with the array of color membrane substrates is identical, as shown in Figure 2 b.In order to reduce wiring quantity, the induction electrode 21 being positioned at same row or column can be connected with same first connecting line 23.
When realizing, induction electrode the 21, first connecting line 23 and the second connecting line 24 can be arranged with layer, in order to synchronize to make induction electrode, the first connecting line and the second connecting line, simplify processing technology.
Wherein, underlay substrate 20 is typically transparent, can be glass substrate, plastic base etc..Induction electrode the 21, first connecting line 23 and the second connecting line 24 can use metal to make, and the metal of employing includes but not limited to Al, Cu, Mo, Ti etc..
Preferably, as shown in Figure 2 b, this color membrane substrates can also include that a plurality of jumper 25, every jumper 25 are connected with a plurality of first connecting line 23.Seeing Fig. 2 a, jumper 25 and induction electrode 21 are positioned at different layers.One end 21a accessing reference voltage of multiple induction electrodes 21 can be linked together by jumper 25, in order to provide reference voltage to multiple induction electrodes simultaneously.
As shown in Figure 2 b, in the present embodiment, a plurality of jumper 25 parallel interval is arranged, and every jumper 25 is connected with the first connecting line 23 of same a line induction electrode 21 by via 25a.In the present embodiment, jumper 25 can be vertically arranged with the first connecting line 23, in order to wiring.
Alternatively, jumper 25 can use transparent conductive material to make, such as, indium tin oxide (Indium Tin Oxides, ITO) material can be used to make, to avoid affecting the transmitance of color membrane substrates.
In the present embodiment, as shown in Figure 2 a, color membrane substrates can also include the black matrix 26 being located between the pixel region 22 of arbitrary neighborhood, and induction electrode projection on underlay substrate 20 is positioned at the black matrix 26 projection on underlay substrate 20, to avoid reducing the area of the transmission region of color membrane substrates.
As shown in Figure 2 a, color membrane substrates can also include covering the protective layer 27 on pixel region 22 and black matrix 26, and protective layer 27 can use insulant to be formed, such as, and silicon nitride, silicon oxynitride etc..
Additionally, in the present embodiment, color membrane substrates can also include covering the insulating barrier 28 on induction electrode 21, and aforementioned via 25a is formed in insulating barrier 28, and jumper 25 and the first connecting line 23 are connected by the via 25a in insulating barrier 28.Alternatively, the material of insulating barrier 28 includes but not limited to silicon nitride, silicon oxynitride etc..
It should be noted that film number of plies amount shown in Fig. 2 a and order are only for example, it is achieved time, array base palte can include more or less of film layer according to actual needs, and change the order of film layer.
Fig. 3 a shows a kind of array base palte that the embodiment of the present invention provides.Referring to Fig. 3 a, as a example by array base palte, the display base plate providing the embodiment of the present invention illustrates.As shown in Figure 3 a, this array base palte includes: underlay substrate 30 and the multiple induction electrodes 31 being arranged on underlay substrate 30.Fig. 3 b is the arrangement schematic diagram of the induction electrode of array base palte shown in Fig. 3 a.In conjunction with Fig. 3 b, each induction electrode 31 is the circulus with an opening, and one end 31a of this circulus is used for accessing reference voltage, and the other end 31b of this circulus is used for connection detection circuit.
In the present embodiment, array base palte also includes that common electrode layer 32, induction electrode 31 are the first induction electrode arranged with layer with common electrode layer 32.
As shown in Figure 3 b, the circulus that each induction electrode 31 is rectangular.The circulus of rectangle includes four sides being sequentially connected with, article four, side is respectively first side 311, second side the 312, the 3rd side 313 and four side 314 according to the order of connection, wherein, first side 311 and the 3rd opposing parallel setting of side 313, second side 312 and the opposing parallel setting of four side 314, four side 314 is provided with the both sides of opening 314a, opening 314a and is the two ends of circulus.
Further, common electrode layer 32 includes that multiple electrode blocks 321 that array is arranged, each first induction electrode are arranged around an electrode block 321.In the present embodiment, it is designed with first induction electrode outside each electrode block 321.
Wherein, the first induction electrode can use transparent conductive material to make, such as ITO material.
The array base palte of the present embodiment also includes multiple pixel region (not shown) that the array being arranged on underlay substrate 30 is arranged, each pixel region can include three subpixel area, and each subpixel area is equipped with thin film transistor (TFT) (not shown).Subpixel area is limited by many grid lines 35 arranged in a crossed manner on underlay substrate 30 and many data lines 36, and the thin film transistor (TFT) of each subpixel area is connected with a grid line 35 arranged in a crossed manner and a data lines 36 respectively.
In the present embodiment, multiple pixel regions can be divided into many groups, and each induction electrode 31 is arranged around one group of pixel region, the corresponding one group of pixel region of the most each electrode block 321.Often group pixel region can include one or more pixel region, and particular number can determine according to the size of resolution and display base plate.Such as, the area in the region in each circulus could be arranged to be multiplied by 4mm less than 4mm, to ensure the accuracy of detection of induction electrode.On the direction being perpendicular to underlay substrate 30, this circulus is the most overlapping with any one pixel region.
It should be noted that in other embodiments, it is also possible to it is grouped in units of subpixel area.
In the present embodiment, array base palte also includes the first connecting line 33 and the second connecting line 34 that parallel interval is arranged, one end 31a (i.e. accessing one end of reference voltage) of circulus is connected with the first connecting line 33, and other end 31b and second connecting line 34 of circulus connect.
In the present embodiment, as shown in Figure 3 a, array base palte also includes that source-drain electrode layer (i.e. data wire 36 place layer), the first connecting line 33 and the second connecting line 34 are arranged with layer with source-drain electrode layer.It is to say, induction electrode 31 and first connecting line the 33, second connecting line 34 are positioned at different layers, induction electrode 31 is connected by via 33a with the first connecting line 33, and induction electrode 31 is connected by via 34a (see Fig. 3 b) with the second connecting line.
Owing to the first connecting line 33 and the second connecting line 34 are arranged with layer with source-drain electrode layer, therefore its bearing of trend is identical with the bearing of trend of data wire 36.So, in conjunction with Fig. 3 b, can be connected with same first connecting line 33 with one end 31a being used for accessing reference voltage of string induction electrode 31, thus reduce wiring quantity.
Additionally, in the present embodiment, each electrode block 321 is respectively connected with a contact conductor 37, and contact conductor 37 and electrode block 321 are positioned at different layers, are connected by via 37a between contact conductor 37 with electrode block 321.When realizing, contact conductor 37 can also be positioned at source and drain metal level.
In other embodiments, the first connecting line 33 and the second connecting line 34 can also be arranged with layer with grid line 35 place layer, i.e. grid layer.Wherein, underlay substrate 30 can be glass substrate, plastic base etc..First connecting line 33 and the second connecting line 34 can use metal to make.The metal used includes but not limited to Al, Cu, Mo, Ti etc., the invention is not limited in this regard.
It should be noted that for the ease of describing, eliminate the part film layer of array base palte, such as gate insulation layer, active layer, pixel electrode layer etc. in Fig. 3 a, this is not meant to that the array base palte that the embodiment of the present invention provides does not includes these film layers.Film number of plies amount shown in Fig. 3 a and order are only for example, it is achieved time, array base palte can include more or less of film layer according to actual needs, and change the order of film layer.
Fig. 4 shows another array base palte that the embodiment of the present invention provides, and referring to Fig. 4, as a example by array base palte, the display base plate providing the embodiment of the present invention illustrates.As shown in Figure 4, this array base palte includes: underlay substrate 40 and the multiple induction electrodes 41 being arranged on underlay substrate 40.The plane arrangement structure of the induction electrode of the array base palte shown in Fig. 4 is identical with the plane arrangement structure of the induction electrode of the color membrane substrates shown in Fig. 3 a, therefore the present embodiment emphasis describes the film layer structure of array base palte, and the horizontal layout for induction electrode 41 repeats no more.
The array base palte of the present embodiment also includes the thin film transistor array layer 43 being arranged on underlay substrate 40, thin film transistor array layer 43 includes multiple pixel regions that array is arranged, each pixel region can include three subpixel area, and each subpixel area is equipped with thin film transistor (TFT) (not shown).Subpixel area is limited by many grid lines arranged in a crossed manner on underlay substrate 40 and many data lines, and the thin film transistor (TFT) of each subpixel area is connected with a grid line arranged in a crossed manner and a data lines respectively.
As shown in Figure 4, in the present embodiment, this array base palte also includes covering the insulating barrier 42 on induction electrode, and thin film transistor array layer 42 is located on insulating barrier 21.
In the present embodiment; thin film transistor (TFT) can be low temperature polycrystalline silicon (Low Temperature Poly-silicon, LTPS) thin film transistor (TFT), owing to LTPS is to light sensitive; so shading (Light Shied, LS) layer would generally be arranged on underlay substrate.In this case, the induction electrode 41 in the present embodiment is the second induction electrode arranged with layer with LS layer.
It should be noted that in other do not possess the array base palte of LS layer, induction electrode 41 can also be formed directly on underlay substrate 40 as single one layer.
In the present embodiment, array base palte also includes the 3rd connecting line and the 4th connecting line that parallel interval arranges, one end of the circulus of described 3rd connecting line and the second induction electrode connects, and the other end of the circulus of described 4th connecting line and the second induction electrode connects.
In the present embodiment, the 3rd connecting line, the 4th connecting line and the second induction electrode are arranged with layer.
Preferably, array base palte also includes being located at a plurality of jumper on described underlay substrate, and every jumper is connected with a plurality of 3rd connecting line, jumper with can with source-drain electrode layer with layer arrange.
It should be noted that film number of plies amount shown in Fig. 3 a and order are only for example, it is achieved time, array base palte can include more film layer according to actual needs, and change the order of film layer.
Fig. 5 shows the another array base palte that the embodiment of the present invention provides.Referring to Fig. 5, as a example by array base palte, the display base plate providing the embodiment of the present invention illustrates.As it is shown in figure 5, this array base palte includes: underlay substrate 50 and the induction electrode being formed on underlay substrate 50.
In the present embodiment, induction electrode includes the first induction electrode 51a and the second induction electrode 51b, wherein, the arrangement of the first induction electrode 51a is identical with the induction electrode 31 in Fig. 3 a and Fig. 3 b, and the arrangement of the second induction electrode 51b is identical with the arrangement of the induction electrode 41 in Fig. 4.Preferably, on the direction being perpendicular to underlay substrate, the first induction electrode 51a and the second induction electrode are overlapping.On the direction being perpendicular to underlay substrate, the circulus of induction electrode is the most, and sensing signal amount is the biggest, it is hereby achieved that preferably Detection results.
In the present embodiment, array base palte also includes the first connecting line 53 and the second connecting line 54 that a plurality of parallel interval is arranged, one end of the circulus of the first induction electrode is connected with the first connecting line 33, and the other end and second connecting line 54 of the circulus of the first induction electrode connect.
First induction electrode 51a and the first connecting line 53 and the second connecting line 54 are positioned at different layers, and the first induction electrode 51a is connected by via and the first connecting line, and the first induction electrode 51a is connected with the second connecting line 54 by via (not shown).
In the present embodiment, the first induction electrode 51a is arranged with layer with common electrode layer 52, and the first connecting line 53 and the second connecting line 54 are arranged with layer with source-drain electrode layer.Owing to the first connecting line 53 and the second connecting line 54 are arranged with layer with source-drain electrode layer, therefore its bearing of trend is identical with the bearing of trend of data wire 56.So, can be connected with same first connecting line 53 with one end being used for accessing reference voltage of string the first induction electrode 51a, thus reduce wiring quantity.
In the present embodiment, array base palte also includes the 3rd connecting line and the 4th connecting line that parallel interval arranges, and one end of the circulus of the 3rd connecting line and the second induction electrode connects, the other end connection of the circulus of the 4th connecting line and the second induction electrode.3rd connecting line, the 4th connecting line and the second induction electrode 51b are arranged with layer, and the i.e. the 3rd connecting line, the 4th connecting line and the second induction electrode 51b are directly arranged on underlay substrate 50.
Preferably, in the present embodiment, the first connecting line 53 can be used as the jumper connecting a plurality of 3rd connecting line, say, that the first connecting line 53 in Fig. 5 is connected by via with the 3rd connecting line, such that it is able to simplify wire structures further, it is simple to make.
It should be noted that in other embodiments, the first connecting line 53 and the second connecting line 54 can also be arranged on grid layer (i.e. grid line 55 place layer).
In addition, the array base palte of the present embodiment also includes the insulating barrier 58 being located between common electrode layer and source-drain electrode layer and is located at the insulating barrier 57 on underlay substrate 50 and the second induction electrode 51b, certainly, this array base palte also includes the necessary film layers such as gate insulation layer, omits at this and describes in detail.
Fig. 6 shows the Cleaning Principle schematic diagram of arbitrary display base plate that the embodiment of the present invention provides, and goes for any one display base plate shown in Fig. 1-Fig. 5.As shown in Figure 6, when electromagnetic touch pen 60 is near display base plate, electromagnetic touch pen 60 sends the electric field B of change, electric potential difference is produced on induction electrode 61 near electromagnetic touch pen 60, and then generation faradic current, detection amplifying circuit detects this faradic size, thus realizes the detection of position.The structure of the detection amplifying circuit in Fig. 6 is only for example, and is not intended as limitation of the present invention.As shown in Figure 6, this detection amplifying circuit can include amplifier U, resistance R and detection integrated circuit (Integrated Circuit, IC) (not shown), the normal phase input end of amplifier U is connected with one end of induction electrode 61 and meets reference voltage V0, the negative-phase input of amplifier U connects the other end of induction electrode 61, one end of resistance R is connected with the negative-phase input of amplifier U, the other end of resistance R is connected with the outfan of amplifier U, output voltage Vout size according to amplifier U, can calculate the size of faradic current I.Such as, in the testing circuit shown in Fig. 6, faradic current can calculate according to formula Vout=I*R-V0.
Fig. 7 shows the structural representation of a kind of display device that the embodiment of the present invention provides.As it is shown in fig. 7, this display device includes upper substrate 71 and infrabasal plate 72.On upper substrate 71 and infrabasal plate 72, at least one is provided with induction electrode.
Concrete, in the first implementation, upper substrate 71 can be for the color membrane substrates shown in Fig. 2, and infrabasal plate 72 is the array base palte being not provided with aforementioned induction electrode.
In the second implementation, upper substrate 71 is not provided with aforementioned induction electrode, and infrabasal plate 72 can be for the array base palte shown in Fig. 3 a-3b, the array base palte shown in Fig. 4 or the array base palte shown in Fig. 5.
In the third implementation, upper substrate 71 is the color membrane substrates shown in Fig. 2, and infrabasal plate 72 is the array base palte shown in Fig. 3 a-3b, the array base palte shown in Fig. 4 or the array base palte shown in Fig. 5.It is provided with induction electrode on upper substrate 71 and infrabasal plate 72.When realizing, the induction electrode on upper substrate 71 and infrabasal plate 72 is overlapped on the direction be perpendicular to upper substrate.By overlapping of the induction electrode on the induction electrode on upper substrate 71 and infrabasal plate 72, bigger semaphore can be sensed, it is hereby achieved that preferably Detection results.
As it is shown in fig. 7, in this example it is shown that device can be display panels, be provided with liquid crystal layer 73 between upper substrate 71 and infrabasal plate 72.
It should be noted that in the specific implementation, the display device that the embodiment of the present invention provides can be any product with display function or the parts such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (20)
1. a display base plate, including: underlay substrate, it is characterised in that described display base plate also includes:
The multiple induction electrodes being arranged on described underlay substrate, each described induction electrode is to be had out
Mouthful circulus, one end of described circulus is used for accessing reference voltage, another of described circulus
End is for connection detection circuit.
Display base plate the most according to claim 1, it is characterised in that described display base plate also includes setting
Putting multiple pixel regions that the array on described underlay substrate is arranged, the plurality of pixel region is divided into many groups,
Each described circulus is arranged around pixel region described in a group, and is being perpendicular to the side of described underlay substrate
Upwards, described circulus is the most overlapping with any one of pixel region.
Display base plate the most according to claim 2, it is characterised in that described display base plate is color film base
Plate, described pixel region is provided with colored filter.
Display base plate the most according to claim 3, it is characterised in that described induction electrode is positioned at described
Colored filter is away from the side of described underlay substrate.
Display base plate the most according to claim 3, it is characterised in that described color membrane substrates also includes setting
Black matrix between the pixel region of arbitrary neighborhood, the projection on described underlay substrate of the described induction electrode
It is positioned at the projection on described underlay substrate of the described black matrix.
Display base plate the most according to claim 3, it is characterised in that described color membrane substrates also includes putting down
First connecting line of between-line spacing setting and the second connecting line, one end of described circulus is connected with described first
Line connects, and the other end of described circulus is connected with described second connecting line.
Display base plate the most according to claim 6, it is characterised in that described induction electrode and described the
One connecting line and described second connecting line are arranged with layer.
Display base plate the most according to claim 7, it is characterised in that described induction electrode, described
One connecting line and described second connecting line use metal to make.
Display base plate the most according to claim 7, it is characterised in that described color membrane substrates also include with
Described induction electrode is positioned at a plurality of jumper of different layers, and every jumper is with a plurality of described first connecting line even
Connect.
Display base plate the most according to claim 9, it is characterised in that described jumper uses transparent
Conductive material is made.
11. display base plates according to claim 2, it is characterised in that described display base plate is array
Substrate, described pixel region is provided with thin film transistor (TFT).
12. display base plates according to claim 11, it is characterised in that described array base palte includes public affairs
At least one of which in common electrode layer and light shield layer, described induction electrode includes the first induction electrode and the second sensing
At least one in electrode, described first induction electrode is arranged with layer with described common electrode layer；Described second
Induction electrode is arranged with layer with described light shield layer.
13. display base plates according to claim 12, it is characterised in that described common electrode layer includes
Multiple electrode blocks that array is arranged, the corresponding one group of pixel region of each electrode block is arranged, each described first sense
Electrode is answered to arrange around a described electrode block.
14. display base plates according to claim 12, it is characterised in that described first induction electrode is adopted
Making with transparent conductive material, described second induction electrode uses metal to make.
15. display base plates according to claim 14, it is characterised in that described array base palte also includes
First connecting line of parallel interval setting and the second connecting line, described first connecting line and described first faradism
One end of the circulus of pole connects, the circulus of described second connecting line and described first induction electrode
The other end connects.
16. display base plates according to claim 15, it is characterised in that described array base palte also includes
The source-drain electrode layer being located on described underlay substrate, described first connecting line, described second connecting line and described source
Drain electrode layer is arranged with layer.
17. display base plates according to claim 14, it is characterised in that described array base palte also includes
3rd connecting line of parallel interval setting and the 4th connecting line, described 3rd connecting line and described second faradism
One end of the circulus of pole connects, the circulus of described 4th connecting line and described second induction electrode
The other end connects.
18. display base plates according to claim 17, it is characterised in that described 3rd connecting line, institute
State the 4th connecting line to arrange with layer with described second induction electrode.
19. display base plates according to claim 18, it is characterised in that described array base palte also includes
The source-drain electrode layer being located on described underlay substrate and a plurality of jumper, every described jumper and a plurality of described the
Three connecting lines connect, and described jumper is arranged with layer with described source-drain electrode layer.
20. 1 kinds of display devices, described display device includes upper substrate and infrabasal plate, it is characterised in that institute
At least one stated in upper substrate and described infrabasal plate is display base plate as claimed in claim 1.
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| CN201610384170.3A CN105955543B (en) | 2016-06-01 | 2016-06-01 | Display base plate and display device |
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| CN201610384170.3A CN105955543B (en) | 2016-06-01 | 2016-06-01 | Display base plate and display device |
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| CN109884828A (en) * | 2019-04-17 | 2019-06-14 | 京东方科技集团股份有限公司 | Display panel and mobile terminal |
| CN109933250A (en) * | 2019-03-26 | 2019-06-25 | 京东方科技集团股份有限公司 | Display module, display device and display equipment |
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| CN109933250A (en) * | 2019-03-26 | 2019-06-25 | 京东方科技集团股份有限公司 | Display module, display device and display equipment |
| CN109933250B (en) * | 2019-03-26 | 2024-02-09 | 京东方科技集团股份有限公司 | Display module, display device and display equipment |
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| CN105955543B (en) | 2019-03-01 |
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