CN106055141A - Touch display device - Google Patents

Abstract

A touch display device comprises a touch sensing layer, wherein the touch sensing layer comprises multiple first electrode strings and second electrode strings which extend in different directions; the first electrode strings and the second electrode strings are intercrossed to form overlaying parts; non-overlaying parts outside the overlaying parts as well as connecting parts which are connected between the two non-overlaying parts and corresponding to the overlaying parts are formed on the first electrode strings and the second electrode strings; the first electrode strings and the second electrode strings are formed through intercrossing of wires made of a conducting material; the wires on the first electrode strings are crossed at the non-overlaying parts to form a first grid pattern and form a second grid pattern at the connecting parts; the wires on the second electrode strings are crossed at the non-overlaying parts to form a third grid pattern and form a fourth grid pattern at the connecting parts; at the overlaying parts, a projection of the second grid pattern on the second electrode strings and the fourth grid pattern jointly form a fifth grid pattern; and the first grid pattern, the third grid pattern and the fifth grid pattern are same.

Description

Touch control display apparatus

Technical field

The present invention relates to the technical field of liquid crystal display, especially a kind of touch control display apparatus.

Background technology

Touch screen has been widely used in the electronic equipment such as mobile phone and panel computer now, and the appearance of touch screen overcomesThe shortcoming that input through keyboard is loaded down with trivial details, is increasingly becoming the main flow Man Machine Interface of electronic equipment.Touching of existing touch control display apparatusControl technology mainly have embedded (In-cell), externally embedded type (On-cell) and single glass touch (One Glass Solution,OGS), the touch control display apparatus of In-cell is to be integrated into inside the colored optical filtering substrates of display floater by pixel control layer, On-The touch control display apparatus of cell is pixel control layer to be arranged between the colored optical filtering substrates of display floater and protection glass,The touch control display apparatus of OGS is pixel control layer to be combined with protection glass, then is fitted in display surface by optical cementOn plate.Above-mentioned all kinds of touch technology has different advantages and shortcoming, and different display can select not according to its purposesSame touch technology.

In the prior art, pixel control layer includes the first electrode layer, the second electrode lay and is positioned at the first electrode layer andInsulating medium layer between two electrode layers, the first electrode layer includes multiple the first electrode array extended in a first direction, the second electricityPole layer includes multiple the second electrode array extended in a second direction, and the first electrode array and the second electrode array intersect.

In the prior art, the first electrode layer and the second electrode lay are usually with tin indium oxide (Indium TinOxides, ITO) etc. transparent conductive material be made, but high by this material pixel control layer not only cost of manufacture, impedance is big,And the penetrance also resulting in touch control display apparatus reduces, and is unfavorable for the design of touch control display apparatus.

In up-to-date technology, the first electrode layer and the second electrode lay can be by metal grill (Metal Mesh), nanometersSilver wire and Graphene etc. have the material of electric conductivity and make, above-mentioned material because of its impedance is little, touch-control is highly sensitive and accordingly speedDegree is favored by people soon and increasingly.But owing to the conductive materials such as metal grill, nano-silver thread and Graphene do not haveOptical property, therefore can not use the solid electrode as ITO electrode to design, need to use can the mesh design of printing opacity, butEven if use mesh design, its light transmission the most also can affect by it, to above-mentioned conductive material application andPromote and bring certain restriction.

Summary of the invention

It is an object of the invention to provide a kind of touch control display, this touch control display can make grid electrode have relativelyGood light transmission, it is possible to there is preferable display effect.

The present invention provides a kind of touch control display apparatus, and including pixel control layer, described pixel control layer includes the first electrodeLayer and the second electrode lay, described first electrode layer includes multiple the first electrode array extended in a first direction, described second electrodeLayer includes multiple the second electrode array extended in a second direction, and described first electrode array and the second electrode array intersect and be formedIt is formed with, on overlapping portion, described first electrode array and described second electrode array, the non-overlapping portion being positioned at beyond overlapping portion and is connected toBetween two Non-overlapping Domain and the join domain corresponding with described overlapping portion, described first electrode array and described second electrodeThe wires cross that string all has conductive material to make is formed, and the described wire on described first electrode array is at Non-overlapping Domain X-typeBecome to have the first lattice, at described join domain, be formed with the second lattice, lead described on described second electrode arrayLine has intersected to form the 3rd lattice in described Non-overlapping Domain, is formed with the 4th lattice at described join domain,In overlapping portion, the projection on described second electrode array of described second lattice and the 4th lattice are collectively forming the 5th netGrid pattern, described first lattice, described 3rd lattice and described 5th lattice are identical.

Further, described first lattice, described second lattice, described 3rd lattice, the described 4thLattice and described 5th lattice are rhombus.

Further, described first lattice, described second lattice, described 3rd lattice, the described 4thLattice and described 5th lattice are the most identical, and in described overlapping portion, described second lattice is at described second electrodeProjection on string overlaps with described 4th lattice.

Further, described first lattice is identical with described 3rd lattice, described second lattice and instituteState the 4th lattice identical, and arrangement mode is the most identical, described second lattice and the rhombus of described 4th latticeSimilar to the argyle design of described first lattice and described 3rd lattice, and described second lattice and describedThe length of side of the argyle design of four lattices is that the argyle design of described first lattice and described 3rd lattice is correspondingThe twice of the length of side, in described overlapping portion, the summit of the argyle design of described second lattice is on described second electrode arrayProjection be positioned at the center of argyle design of described 4th lattice.

Further, the width of the join domain of described first electrode array and described second electrode array is less than non-attached areaWidth, from described overlapping portion to the midpoint direction between two described overlapping portions, described first electrode array and described secondElectrode array becomes larger at the width of Non-overlapping Domain.

Further, the shape of the Non-overlapping Domain of described first electrode array and described second electrode array is square, shouldFoursquare diagonal passes through described first electrode array at its place or the centrage of the major axis of the second electrode array, described overlapping portionSquare.

Further, the width of the widest part of described first electrode array and described second electrode array Non-overlapping Domain is 1.5-2.5, the width of described overlapping portion is 0.5-1.5, and the distance between two adjacent described overlapping portion central points is 3.5-4.5㎜。

Further, described touch control display apparatus also includes protecting glass and display floater, and described display floater includesPolaroid, colored filter substrate, liquid crystal layer and array base palte, described liquid crystal layer is positioned at described colored filter substrate with describedBetween array base palte, described protection glass is positioned at the described upper polaroid side away from described colored filter substrate, described tactileControl sensed layer described colored filter substrate and described between polaroid.

Further, described first electrode array and described second electrode array are by Al, AlNd, Mo, MoTi, Cu, Cr, Ag etc.The conductive material such as metal or Graphene is formed.

Further, described first electrode layer includes the first electrode array and non-electrode between two the first electrode arraysPortion, described first electrode array is one-body molded with described non-electrode portion, and described second electrode array is arranged and described spaced reciprocallyOn two electrode layers, between described second electrode array, it is formed with suspension portion.

In sum, the present invention is by using the little conductive material of impedance and the first electrode array and the second electrode array being madeBecome latticed, make the lattice phase of non-overlapping portion on the lattice of overlapping portion and the first electrode array and the second electrode array simultaneouslyWith so that this touch control display apparatus has preferable light transmission, therefore has preferable display effect.

Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,And can be practiced according to the content of description, and in order to allow the above and other objects, features and advantages of the present invention canBecome apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.

Accompanying drawing explanation

The structural representation of the touch control display apparatus that Fig. 1 provides for first embodiment of the invention.

Fig. 2 is the structural representation of pixel control layer in Fig. 1.

Fig. 3 is the structural representation of pixel control layer in another embodiment.

Fig. 4 is the structural representation of the first electrode array in Fig. 2.

Fig. 5 is the structural representation of the second electrode array in Fig. 2.

Fig. 6 is the first electrode array and the structural representation of the second electrode array infall.

Fig. 7 is the structural representation of the first electrode array in second embodiment of the invention.

Fig. 8 is the structural representation of the second electrode array in second embodiment of the invention.

Fig. 9 is the first electrode array and the structural representation of the second electrode array infall in second embodiment of the invention.

Figure 10 is the structural representation of pixel control layer in third embodiment of the invention.

Figure 11 is the schematic cross-section in Figure 10 at XI-XI.

Detailed description of the invention

By further illustrating the technological means and effect that the present invention taked by reaching predetermined goal of the invention, below in conjunction withAccompanying drawing and preferred embodiment, it is as follows that the present invention is described in detail.

The present invention provides a kind of touch control display apparatus.The touch control display apparatus that Fig. 1 provides for first embodiment of the inventionStructural representation, Fig. 2 is the structural representation of pixel control layer in Fig. 1, and Fig. 3 is the structure of pixel control layer in another embodimentSchematic diagram, Fig. 4 is the structural representation of the first electrode array in Fig. 2, and Fig. 5 is the structural representation of the second electrode array, Fig. 6 in Fig. 2Being the first electrode array and the structural representation of the second electrode array infall, as shown in Figures 1 to 6, the touch-control that the present invention provides showsBeing provided with pixel control layer 20 in showing device, this pixel control layer 20 can use embedded (In-cell), externally embedded type (On-Cell) and the multiple touch-control framework such as single glass touch (One Glass Solution, OGS) is located in touch control display apparatus,As a example by externally embedded type touch-control framework, the touch control display apparatus that the present invention provides includes liquid crystal panel 10, pixel control layer 20 and protectsProtecting glass 30, liquid crystal panel 10 includes colored filter (color filter, CF) substrate 12, liquid crystal layer 13 and array (ThinFilm Transistor, TFT) substrate 14, liquid crystal layer 13 is between colored filter substrate 12 and array base palte 14, at liquidBeing positioned at the side of colored filter substrate 12 in crystal panel 10, be additionally provided with polaroid 11, upper polaroid 11 is positioned at colorized optical filteringPlate base 12 away from the side of array base palte 14, pixel control layer 20 be positioned at polaroid 11 and colored filter substrate 12 itBetween, protection glass 30 is positioned at the polaroid 11 side away from colored filter substrate 12.

As shown in Figures 1 and 2, above-mentioned pixel control layer 20 includes be located close to colored filter substrate 12 sideOne electrode layer 21 (such as signal output electrode layer, TX electrode layer) and the second electrode lay 22 away from colored filter substrate 12 side(such as induction of signal electrode layer, RX electrode layer) in the present embodiment, the first electrode layer 21 and the second electrode lay 22 all can be formed atThe both sides of the first insulating medium layer 28, are additionally provided with the second insulating medium layer 29 between the second electrode lay 22 and upper polaroid 11.First electrode layer 21 includes multiple the first electrode array 211 extended in a first direction, and the second electrode lay 22 includes multiple along secondThe second electrode array 221 that direction extends, the first electrode array 211 intersects with the second electrode array 221, as being mutually perpendicular to, andInfall is formed with overlapping portion 23, makes to be formed on the first electrode array 211 and the second electrode array 221 to be positioned at beyond overlapping portion 23Non-overlapping Domain 24 and being connected between two Non-overlapping Domain 24 and the join domain 25 corresponding with overlapping portion 23, overlapping portion23 are intersected by respective join domain 25 on the first electrode array 211 and the second electrode array 221 is formed.

Further, in the present embodiment, the first electrode array 211 and the second electrode array 221 are at the width of join domain 25It is less than the width in Non-overlapping Domain 24, the i.e. width of overlapping portion 23 and is less than the width of Non-overlapping Domain 24, non-overlappedRegion 24, the shape of the first electrode array 211 and the second electrode array 221 is square, and this square is along the first electrode array 211 or theThe diagonal of the length direction of two electrode arrays 221 through the first electrode array 211 or centrage of the second electrode array 221 major axis,The width of the widest part of one electrode array 211 and the second electrode array 221 Non-overlapping Domain 24 is that 1.5-2.5 is (see Fig. 6 T₁).FirstThe join domain 25 of electrode array 211 and the second electrode array 221 is strip, i.e. overlapping portion 23 is by two strip electrode arraysThe rectangle intersected to form, such as square.The width of overlapping portion 23 is that 0.5-1.5 is (see Fig. 6 T₂), two adjacent overlapping portions 23The width of central point is that 3.5-4.5 is (see Fig. 2 T₃).It is to be appreciated that Non-overlapping Domain 24, the first electrode array 211 andThe shape of two electrode arrays 221 is not limited to square, it is also possible to for irregular shape as shown in Figure 3, as long as meeting from weightMidpoint direction between two adjacent overlapping portions 23, the folded portion 23, the first electrode array 211 and the second electrode array 221 are non-heavyThe width in folded region 24 becomes larger, and i.e. between two adjacent overlapping portions 23, the width of the Non-overlapping Domain 24 of midpoint isWidth, the closer to overlapping portion 23, the width of Non-overlapping Domain 24 becomes narrow gradually.

In the present invention, the first electrode array 211 and the second electrode array 221 are by Al, AlNd, Mo, MoTi, Cu, Cr, Ag etc.The wires cross that the conductive material such as metal or Graphene is formed is formed, and the wire on the first electrode array 211 is in Non-overlapping Domain 24Intersect to form the first lattice 261, at the join domain 25 corresponding with overlapping portion 23, be formed with the second lattice262, the wire on the second electrode array 221 has intersected to form the 3rd lattice 263 in Non-overlapping Domain 24, with overlapping portion 23It is formed with the 4th lattice 264 at corresponding join domain 25.In overlapping portion 23, the second lattice 262 is at the second electricityProjection on pole string 221 is collectively forming the 5th lattice 265 with the 4th lattice 264, first on the first electrode array 211The 3rd lattice 263 and the 5th lattice 265 of overlapping portion 23 on lattice the 261, second electrode array 221 are identical,The most not only the shape of three lattices is identical, and its size is the most equal.In the present embodiment, first lattice the 261, second netGrid pattern the 262, the 3rd lattice 263 and the 4th lattice 264 are identical rhombus, it is preferable that its less angle instituteCorresponding cornerwise length can be 244 μm, the projection on the second electrode array 221 of second lattice 262 and the 4th netGrid pattern 264 overlaps, that is, in terms of upper polaroid 11 to colored filter substrate 12 direction, the first lattice the 261, the 3rdLattice 263 and the 5th lattice 265 are identical rhombus, and its arrangement mode is the most identical.

In the present embodiment, owing to the first electrode array 211 and the second electrode array 221 are constituted by lattice, therefore lightThe first electrode array 211 and the second electrode array 221 can be passed through, due to the first lattice 261, the 3rd lattice 263 andFive lattices 265 are identical rhombus, therefore, have consistent light transmission, therefore have on whole touch control display apparatusThere is preferable display effect.

Fig. 7 is the structural representation of the first electrode array in second embodiment of the invention, and Fig. 8 is in second embodiment of the inventionThe structural representation of the second electrode array, Fig. 9 is the first electrode array and the second electrode array infall in second embodiment of the inventionStructural representation, as shown in Figure 7 to 9 (Fig. 7 to Fig. 9 illustrate only the part around join domain 25 and overlapping portion 23), thisThe structure inventing the touch control display apparatus that the second embodiment provides is essentially identical with first embodiment, and its difference is: theOne lattice 261 and the 3rd lattice 263 have identical network pattern, the second lattice 262 and the 4th netGrid pattern 264 has identical network pattern, the argyle design in the second lattice 262 and the 4th lattice 264Not identical with the argyle design in the first lattice 261 and the 3rd lattice 263, the second lattice 262 and the 4thArgyle design in lattice 264 is only similar to the argyle design in the first lattice 261 and the 3rd lattice 263,But the length of side of the argyle design in the second lattice 262 and the 4th lattice 264 is the first lattice 261 and the 3rd netTwo times of the length of side of the argyle design in grid pattern 263, the rhombus in the i.e. second lattice 262 and the 4th lattice 264The area of pattern is in the first lattice 261 and the 3rd lattice 263 four times of rhombus area, namely the second lattice262 and the 4th cornerwise a length of 488 μm corresponding to its less angle of argyle design in lattice 264.In overlapping portion23, the projection on the second electrode array 221 of the summit of the argyle design on the second lattice 262 is positioned at the 4th latticeThe centre of the argyle design on 264, it is possible to understand that ground, the summit of the argyle design on the 4th lattice 264 is firstProjection on electrode array 211 also is located at the center of the argyle design on the second lattice 262, i.e. from upper polaroid 11 to coloured silkColo(u)r filter substrate 12 direction is seen, the 5th lattice 265 that the second lattice 262 and the 4th lattice 264 are formedRemain as the rhombus identical with the first lattice 261 and the 3rd lattice 263.

Figure 10 is the structural representation of pixel control layer in third embodiment of the invention, and Figure 11 is in Figure 10 at XI-XISchematic cross-section, as shown in Figures 10 and 11, in the present embodiment, the first electrode layer 21 is formed at the first insulating medium layer 28 courtTo the side of colored filter substrate 12, multiple first electrode arrays 211 are formed on the first electrode layer 21, at two the first electrodesIt is formed and the first integrated non-electrode portion of electrode array 211 between string 211, non-electrode portion is again provided with and the first gridPattern 261 and the identical lattice of the 3rd lattice 263, the second electrode lay 22 be formed at the first insulating medium layer 28 away fromThe side of colored filter substrate 12, multiple second electrode arrays 221 alternately form on the second electrode lay 22, at the second electrodeOn layer 22, remove the place beyond the second electrode array 221 by modes such as etchings, i.e. on the second electrode lay 22, the second electrodeString 221 is self-existent, does not include non-electrode portion, being formed with suspension portion 27 between two the second electrode arrays 221.Above-mentioned knotStructure only has one layer of lattice in non-electrode portion pixel control layer 20, therefore can improve the light transmission of touch control display apparatusEnergy.

In sum, the present invention is by using the little conductive material of impedance and the first electrode array and the second electrode array being madeBecome latticed, make the lattice phase of non-overlapping portion on the lattice of overlapping portion and the first electrode array and the second electrode array simultaneouslyWith so that this touch control display apparatus has preferable light transmission, therefore has preferable display effect.

The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, thoughSo the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people being familiar with this specialtyMember, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or modificationFor the Equivalent embodiments of equivalent variations, as long as being without departing from technical solution of the present invention content, according to the technical spirit pair of the present inventionAny simple modification, equivalent variations and the modification that above example is made, all still falls within the range of technical solution of the present invention.

Claims (10)

1. a touch control display apparatus, including pixel control layer (20), described pixel control layer (20) includes the first electrode layer(21) and the second electrode lay (22), described first electrode layer (21) includes multiple the first electrode array extended in a first direction(211), described the second electrode lay (22) includes multiple the second electrode array (221) extended in a second direction, described first electrodeString (211) and the second electrode array (221) intersect and are formed with overlapping portion (23), described first electrode array (211) and described theIt is formed with the Non-overlapping Domain (24) being positioned at beyond overlapping portion (23) on two electrode arrays (221) and is connected to two Non-overlapping Domain(24) between and the join domain (25) corresponding with described overlapping portion (23), it is characterised in that: described first electrode array (211)And the wires cross that described second electrode array (221) is made of electrically conductive material is formed, the institute on described first electrode array (211)State wire and intersected to form the first lattice (261) in Non-overlapping Domain (24), be formed at described join domain (25) placeSecond lattice (262), the described wire on described second electrode array (221) intersects to form in described Non-overlapping Domain (24)There is the 3rd lattice (263), be formed with the 4th lattice (264) at described join domain (25) place, in overlapping portion (23),The projection on described second electrode array (221) of described second lattice (262) is collectively forming with the 4th lattice (264)5th lattice (265), described first lattice (261), described 3rd lattice (263) and described 5th grid chartCase (265) is identical.

Touch control display apparatus the most according to claim 1, it is characterised in that: described first lattice (261), describedTwo lattices (262), described 3rd lattice (263), described 4th lattice (264) and described 5th lattice(265) it is rhombus.

Touch control display apparatus the most according to claim 2, it is characterised in that: described first lattice (261), describedTwo lattices (262), described 3rd lattice (263), described 4th lattice (264) and described 5th lattice(265) the most identical, in described overlapping portion (23), the throwing on described second electrode array (221) of described second lattice (262)Shadow overlaps with described 4th lattice (264).

Touch control display apparatus the most according to claim 2, it is characterised in that: described first lattice (261) is with described3rd lattice (263) is identical, and described second lattice (262) is identical with described 4th lattice (264), and arrangementMode is the most identical, the rhombus of described second lattice (262) and described 4th lattice (264) and described first grid chartThe argyle design of case (261) and described 3rd lattice (263) is similar, and described second lattice (262) and describedThe length of side of the argyle design of four lattices (264) is described first lattice (261) and described 3rd lattice (263)The twice of the length of side corresponding to argyle design, in described overlapping portion (23), the argyle design of described second lattice (262)Summit projection on described second electrode array (221) is positioned at the center of the argyle design of described 4th lattice (264).

Touch control display apparatus the most according to claim 1, it is characterised in that: described first electrode array (211) and describedThe width of the join domain (25) of two electrode arrays (221) less than the width of non-attached area (25), from described overlapping portion (23) toMidpoint direction between two described overlapping portions (23), described first electrode array (211) and described second electrode array (221) existThe width of Non-overlapping Domain (24) becomes larger.

Touch control display apparatus the most according to claim 5, it is characterised in that: described first electrode array (211) and describedThe shape of the Non-overlapping Domain (24) of two electrode arrays (221) is square, and this foursquare diagonal is described through its placeThe centrage of the major axis of the first electrode array (211) or the second electrode array (221), described overlapping portion (23) are square.

Touch control display apparatus the most according to claim 6, it is characterised in that: described first electrode array (211) and describedThe width of the widest part of two electrode arrays (221) Non-overlapping Domain (24) is 1.5-2.5, and the width of described overlapping portion (23) is0.5-1.5, the distance between two adjacent described overlapping portion (23) central points is 3.5-4.5.

Touch control display apparatus the most according to claim 1, it is characterised in that: described touch control display apparatus also includes protecting glassGlass (30) and display floater (10), described display floater (10) includes polaroid (11), colored filter substrate (12), liquid crystalLayer (13) and array base palte (14), described liquid crystal layer (13) is positioned at described colored filter substrate (12) and described array base palte(14), between, described protection glass (30) is positioned at described upper polaroid (11) away from the one of described colored filter substrate (12)Side, described pixel control layer (20) is positioned between described colored filter substrate (12) and described upper polaroid (11).

Touch control display apparatus the most according to claim 1, it is characterised in that: described first electrode array (211) and describedTwo electrode arrays (221) are formed by conductive materials such as metal or Graphene such as Al, AlNd, Mo, MoTi, Cu, Cr, Ag.

Touch control display apparatus the most according to claim 1, it is characterised in that: described first electrode layer (21) includes firstElectrode array (211) and be positioned at the non-electrode portion between two the first electrode arrays (211), described first electrode array (211) is with describedNon-electrode portion is one-body molded, and described second electrode array (221) is arranged and on described the second electrode lay (22) spaced reciprocally, describedSuspension portion (27) it is formed with between second electrode array (221).