CN112639704A - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN112639704A CN112639704A CN201880094165.6A CN201880094165A CN112639704A CN 112639704 A CN112639704 A CN 112639704A CN 201880094165 A CN201880094165 A CN 201880094165A CN 112639704 A CN112639704 A CN 112639704A
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- 239000000758 substrate Substances 0.000 claims abstract description 36
- 239000010410 layer Substances 0.000 claims description 184
- 238000005538 encapsulation Methods 0.000 claims description 19
- 239000002346 layers by function Substances 0.000 claims description 11
- 239000012044 organic layer Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a touch display panel (10) and a touch display device (20), wherein the touch display panel (10) comprises a substrate (100) and a plurality of first touch electrode chains (200) and second touch electrode chains (300) which are arranged on the substrate (100) at intervals and are arranged in a cross insulating mode, each first touch electrode chain (200) comprises a plurality of first electrode units (210) formed by first electrode wires (211) and second electrode wires (212) which are arranged in a cross mode and are electrically connected, and each second touch electrode chain (300) comprises a plurality of second electrode units (310) formed by third electrode wires (311) and fourth electrode wires (312) which are arranged in a cross mode and are electrically connected. The touch display panel is only crossed at the crossed position of the touch electrode chain, the number of crossed positions is small, and electrode wires in the electrode units are arranged to enable the touch display panel to have good bending performance.
Description
The invention belongs to the technical field of display, and particularly relates to a touch display panel and a touch display device.
The display device is generally operated or inputted by a keyboard or a mouse, and with the development of the display technology field, it is a very convenient operation method to operate information equipment by using a touch technology. The touch display panel has a humanized and intuitive input operation interface, so that users at any age can directly select or control information equipment by fingers or a touch pen, and the touch display panel is more and more popular in the market. Generally, the combination of touch control and display is realized through laminating a whole touch electrode in the prior art, but the whole touch electrode is laminated on a display panel to influence the display luminous effect, and when the flexible display device is applied, the bending performance is not good. In addition, the intersection points of the driving electrodes and the sensing electrodes in the traditional touch control electrodes are too many, the background value of the capacitor is large, and the accuracy of touch control sensing is reduced.
Disclosure of Invention
In view of the above, the present invention provides a touch display panel with fewer cross points and better flexibility.
A touch display panel, the touch display panel comprising:
a substrate;
the touch control panel comprises a substrate, a plurality of first touch control electrode chains arranged on the substrate at intervals, a plurality of second touch control electrode chains arranged on the substrate at intervals, a plurality of first electrode units arranged on the substrate at intervals, and a plurality of second electrode units arranged on the substrate at intervals, wherein each first electrode unit comprises a plurality of first electrode wires arranged at intervals and a plurality of second electrode wires arranged at intervals; and
the touch control device comprises a plurality of second touch control electrode chains arranged at intervals on a substrate, wherein the second touch control electrode chains and the first touch control electrode chains are arranged in a cross insulation mode, each second touch control electrode chain comprises a plurality of second electrode units, each second electrode unit comprises a plurality of third electrode wires arranged at intervals and a plurality of fourth electrode wires arranged at intervals, and the fourth electrode wires are arranged at the intervals in a cross mode and are electrically connected with the third electrode wires.
The invention further provides a touch display device which comprises the touch display panel provided by any one of the invention.
The invention has the beneficial effects that: the touch display panel provided by the invention only crosses at the crossing position of the touch electrode chain, the crossing points are fewer, and the electrode wires in the electrode units are arranged to have better bending property.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a touch display panel according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a touch display panel showing a cross according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a touch electrode chain and sub-pixels in a touch display panel according to a first embodiment of the present invention;
FIG. 4 is an enlarged view taken at J of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic structural diagram of another boundary sub-pixel region provided in the present invention;
FIG. 6 is a schematic structural diagram of another boundary sub-pixel region provided in the present invention;
fig. 7 is a schematic structural diagram of a cross connection portion in a touch display panel according to a first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a touch display panel according to a second embodiment of the present invention;
fig. 9a to 9c are schematic views of a layered structure of a touch display panel according to a second embodiment of the invention;
fig. 10 is a schematic structural diagram of a touch display panel according to a third embodiment of the present invention;
fig. 11a to 11c are schematic views of a layered structure of a touch display panel according to a third embodiment of the invention;
fig. 11d to fig. 11e are schematic partial perspective views of a touch display panel according to a third embodiment of the invention;
fig. 12 is a schematic structural diagram of a touch display panel according to a fourth embodiment of the present invention;
fig. 13 is a schematic structural diagram of a cross connection portion in a touch display panel according to a fourth embodiment of the present invention;
fig. 14a to 14c are schematic views of a layered structure of a touch display panel according to a fourth embodiment of the disclosure;
fig. 15 is a schematic structural diagram of a touch display panel according to a fifth embodiment of the present invention;
fig. 16 is a schematic structural diagram of a touch display panel according to a sixth embodiment of the present invention;
fig. 17 is a schematic structural diagram of a touch display panel according to a seventh embodiment of the present invention;
fig. 18 is a schematic structural diagram of a touch display panel according to an eighth embodiment of the present invention;
fig. 19 is a schematic structural diagram of a touch display device according to the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and in the claims, and in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, the present invention provides a touch display panel 10, in which the touch display panel 10 includes a substrate 100 (see fig. 15); and a plurality of first touch electrode chains 200 (see fig. 1) arranged at intervals on the substrate 100, each first touch electrode chain 200 including a plurality of first electrode units 210, each first electrode unit 210 including a plurality of first electrode lines 211 arranged at intervals and a plurality of second electrode lines 212 arranged at intervals, the second electrode lines 212 being arranged in a cross manner and electrically connected to the first electrode lines 211; and a plurality of second touch electrode chains 300 arranged at intervals on the substrate 100, the second touch electrode chains 300 and the first touch electrode chains 200 are arranged in a crossed and insulated manner, each second touch electrode chain 300 includes a plurality of second electrode units 310, each second electrode unit 310 includes a plurality of third electrode lines 311 arranged at intervals and a plurality of fourth electrode lines 312 arranged at intervals, and the fourth electrode lines 312 and the third electrode lines 311 are arranged in a crossed manner and electrically connected. It is understood that only a portion of the first touch electrode chain 200 and a portion of the second touch electrode chain 300 are shown in fig. 1 to aid in the description. The first touch electrode chain 200 and the second touch electrode chain 300 jointly form a touch electrode of the touch display panel 10 to realize a touch function, when the first touch electrode chain 200 is a driving electrode, the second touch electrode chain 300 is a sensing electrode, and when the first touch electrode chain 200 is a sensing electrode, the second touch electrode chain 300 is a driving electrode. Referring to fig. 2, the second touch electrode chain 300 (in this embodiment, a sensing electrode) and the first touch electrode chain 200 (in this embodiment, a driving electrode) of the present invention are arranged in a crossed and insulated manner, that is, the sensing electrode and the driving electrode are only crossed at the X position in fig. 2, two first electrode units 210 connected to the X position of the cross position are provided with a plurality of second electrode lines 212 and first electrode lines 211 arranged in a crossed manner, two second electrode units 310 connected to the X position of the cross position are also provided with a plurality of fourth electrode lines 312 and third electrode lines 311 arranged in a crossed manner, the plurality of second electrode lines 212 and first electrode lines 211 arranged in a crossed manner, and the plurality of fourth electrode lines 312 and third electrode lines 311 arranged in a crossed manner enlarge the touch sensing area, or within the same touch sensing area range, the driving electrode and the sensing electrode of the present invention are only crossed at the X position, and compared with the driving electrode and the sensing electrode are designed to avoid pixel crossing, and cross points are reduced, the background value of the capacitor is reduced, and the touch sensing quantity is provided. In addition, the first electrode unit 210 and the second electrode unit 310 are arranged in a line manner, so that the touch panel is more beneficial to bending compared with a touch electrode adopting a sheet-shaped laminating arrangement, the bending resistance is improved, the light emitting area can be increased, and the luminous display brightness is improved.
Referring to fig. 3, in a further embodiment, a first sub-pixel region 213 is formed between two adjacent first electrode lines 211 and two adjacent second electrode lines 212. A second sub-pixel region 313 is formed between two adjacent third electrode lines 311 and two adjacent fourth electrode lines 312. The first sub-pixel region 213 and the second sub-pixel region 313 are used to accommodate sub-pixels. That is to say, the electrode lines are arranged between the sub-pixels, so that the touch density is increased, and the touch response sensitivity is improved. It is understood that the sub-pixels include red, green, and blue sub-pixels. Fig. 3 only shows one arrangement of the sub-pixels, and it can be understood that the touch electrode of the present invention can be applied to sub-pixels arranged in different ways.
Referring to fig. 4, fig. 4 is a partial enlarged view of fig. 3 at J, in a further embodiment, a boundary sub-pixel region 214 is included between adjacent first electrode units 210 and second electrode units 310, and a portion of the first electrode lines 211, a portion of the second electrode lines 212, a portion of the third electrode lines 311, and a portion of the fourth electrode lines 312 form the boundary sub-pixel region 214. The boundary sub-pixel region 214 is used for accommodating sub-pixels between the adjacent first electrode unit 210 and the second electrode unit 310. It can be understood that a portion of the first electrode lines 211 and a portion of the second electrode lines 212 are not connected to a portion of the third electrode lines 311 and a portion of the fourth electrode lines 312, so as to avoid short circuit between the first touch electrode chain 200 and the second touch electrode chain 300 due to connection. It is understood that the boundary sub-pixel region 214 includes a first side 2141, a second side 2142, a third side 2143, and a fourth side 2144, wherein the first side 2141 and the third side 2143 are disposed opposite to each other, the second side 2142 and the fourth side 2144 are disposed opposite to each other, and wherein the first side 2141 intersects the second side 2142 and the third side 2143 intersects the fourth side 2144, respectively, to form the boundary sub-pixel region 214. The first side 2141 is formed by a portion of the first electrode line 211, the second side 2142 is formed by a portion of the second electrode line 212, the third side 2143 is formed by a portion of the third electrode line 311, and the fourth side 2144 is formed by a portion of the fourth electrode line 312. Referring to fig. 5, alternatively, the first side 2141 is formed by a portion of the first electrode line 211, the second side 2142 is formed by a portion of the second electrode line 212, the third side 2143 is formed by a portion of the first electrode line 211 and a portion of the third electrode line 311, and the fourth side 2144 is formed by a portion of the second electrode line 212 and a portion of the fourth electrode line 312. Referring to fig. 6, alternatively, the first side 2141 is formed by a portion of the first electrode line 211 and a portion of the third electrode line 311, the second side 2142 is formed by a portion of the fourth electrode line 312 and a portion of the second electrode line 212, the third side 2143 is formed by a portion of the third electrode line 311, and the fourth side 2144 is formed by a portion of the fourth electrode line 312. That is, according to the different arrangement of the first electrode unit 210 and the second electrode unit 310 in the display panel 10, the boundary sub-pixel regions 214 between the adjacent first electrode unit and second electrode unit may be configured differently, and the configuration of the boundary sub-pixel regions 214 is not limited to the above description. The boundary sub-pixel region 214 is configured such that the adjacent first electrode unit 210 and the adjacent second electrode unit 310 have a good touch sensing effect even when they are not connected to each other.
Referring again to fig. 1, in a further embodiment, in each first electrode unit 210, the first electrode lines 211 are disposed in a first direction a, and the second electrode lines 212 are disposed in a second direction B. In each of the second electrode units 310, the third electrode lines 311 are disposed in the first direction a, and the fourth electrode lines 312 are disposed in the second direction B. The first direction a intersects the second direction B. The arrangement makes the touch electrode lines (the first electrode lines 211, the second electrode lines 212, the third electrode lines 311 and the fourth electrode lines 312) arranged in order, and avoids short circuit caused by disorder of the lines.
In a further embodiment, the boundary sub-pixel regions 214 are arranged in a direction intersecting the first direction a to form an acute angle. That is, the boundary of the first electrode unit 210 and the second electrode unit 310 intersects the first direction a to form an acute angle. It is to be understood that, since the boundary sub-pixel regions 214 may be formed in various ways, the direction in which the boundary sub-pixel regions 214 are arranged is referred to as the approximate direction in which the boundary sub-pixel regions 214 are arranged.
In a further embodiment, in each of the first electrode units 210, the length of the first electrode line 211 is gradually shorter from the middle to both sides, and the length of the second electrode line 212 is gradually shorter from the middle to both sides. So that the first electrode unit 210 is arranged in a substantially diamond shape. In each second electrode unit 310, the length of the third electrode line 311 is gradually shorter from the middle toward both sides, and the length of the fourth electrode line 312 is gradually shorter from the middle toward both sides. So that the second electrode unit 310 is arranged in a substantially diamond shape in outline. It is understood that the arrangement of the first electrode lines 211, the second electrode lines 212, the third electrode lines 311, and the fourth electrode lines 312 is not limited thereto.
Referring to fig. 7, in a further embodiment, a connection portion 400 is formed at an intersection X of the second touch electrode chain 300 and the first touch electrode chain 200, the connection portion 400 includes a first connection portion 410 and a second connection portion 420, the first connection portion 410 and the second connection portion 420 are arranged in an intersecting and insulating manner, the first connection portion 410 is used for connecting two adjacent first electrode units 210, and the second connection portion 420 is used for connecting two adjacent second electrode units 310.
Referring to fig. 8, a touch display panel 10a according to a second embodiment of the present invention is provided, in which the touch display panel 10a further includes a first insulating layer 500, the first insulating layer 500 is disposed on one side of the first touch electrode chain 200, and the second touch electrode chain 300 is disposed on one side of the first insulating layer 500 away from the first touch electrode chain 200. That is, the first electrode unit 210 and the second electrode unit 310 are distributed in different layers and are insulated by the first insulating layer 500, which can reduce the risk of short circuit caused by the contact between the first electrode unit 210 and the second electrode unit 310 compared to the case where the first electrode unit 210 and the second electrode unit 310 are formed in the same layer. Referring to fig. 9a to 9c, fig. 9a is a layer where the first touch electrode chain 200 is located, fig. 9b is a layer where the first insulating layer 500 is located, fig. 9c is a layer where the second touch electrode chain 300 is located, the layer indicated in fig. 9b is disposed on the layer indicated in fig. 9a, and the layer indicated in fig. 9c is disposed on the layer indicated in fig. 9b, and a partial cross-sectional view thereof is shown in fig. 8.
Referring to fig. 10 and fig. 11a to 11e, a touch display panel 10b according to a third embodiment of the present invention is provided, in which the touch display panel 10b further includes a first auxiliary electrode 600. The first auxiliary electrode 600 is disposed on a side of the first insulating layer 500 away from the first electrode unit 210 and in a corresponding region of the first electrode unit 210 (see fig. 11d for a perspective view). The first insulating layer 500 is opened with a plurality of first through holes 510, and the first auxiliary electrode 600 is connected to the first electrode unit 210 through the first through holes 510. The first auxiliary electrode 600 is connected to the first electrode unit 210 through upper and lower layers to form a parallel circuit, so that the total resistance can be reduced. Especially when the size is large or the sheet resistance of the material used is high, the total resistance can be reduced by the arrangement of the auxiliary electrode. It is to be understood that the first auxiliary electrode 600 and the second electrode unit 310 of the same layer are insulated and spaced apart, and the insulating and isolating relationship is illustrated by the hatching indicated by Y in fig. 10. Referring to fig. 11a to 11c, fig. 11a is a layer where the first electrode unit 210 is located, fig. 11b is a layer where the first insulating layer 500 is located, fig. 11c is a layer where the second electrode unit 310 and the first auxiliary electrode 600 are located, the layer indicated in fig. 11b is disposed on the layer indicated in fig. 11a, and the layer indicated in fig. 11c is disposed on the layer indicated in fig. 11b, and a partial cross-sectional view thereof is as shown in fig. 10, and a partial perspective view thereof is as shown in fig. 11 d.
Referring to fig. 11c, in a further embodiment, the first auxiliary electrode 600 includes a first auxiliary electrode line 610 and a second auxiliary electrode line 620, the first auxiliary electrode line 610 is overlapped with an orthographic projection of the first electrode line 211 on the first insulating layer 500, and the second auxiliary electrode line 620 is overlapped with an orthographic projection of the second electrode line 212 on the first insulating layer 500. This arrangement can further reduce the resistance of the first auxiliary electrode 600 after being connected in parallel with the first electrode unit 210. Preferably, the first auxiliary electrode lines 610 are disposed to cross the second auxiliary electrode lines 620.
Referring to fig. 10 again, in a further embodiment, the touch display panel 10b further includes a second auxiliary electrode 700. The second auxiliary electrode 700 is on the same layer as the first electrode unit 210, and the second auxiliary electrode 700 is disposed in the corresponding region of the second electrode unit 310 (see fig. 11e for a perspective view). The first insulating layer 500 is provided with a plurality of second through holes 520, and the second auxiliary electrode 700 is connected to the second electrode unit 310 by an electrode line passing through the second through holes 520. The second auxiliary electrode 700 is connected to the second electrode unit 310 through the upper and lower layers to form a parallel circuit, so that the total resistance can be reduced. Especially when the size is large or the sheet resistance of the material used is high, the total resistance can be reduced by the arrangement of the auxiliary electrode. It is to be understood that the second auxiliary electrode 700 of the same layer is insulated and spaced from the first electrode unit 210 in an unlimited manner, and the insulation relationship is illustrated by hatching indicated by Y in fig. 10.
In a further embodiment, the second auxiliary electrode 700 includes a third auxiliary electrode line 710 and a fourth auxiliary electrode line 720, the third auxiliary electrode line 710 coincides with an orthographic projection of the third electrode line 311 on the first insulating layer 500, and the fourth auxiliary electrode line 720 coincides with an orthographic projection of the fourth electrode line 312 on the first insulating layer 500. This arrangement can further reduce the resistance of the second auxiliary electrode 700 after being connected in parallel with the second electrode unit 310. Preferably, the third auxiliary electrode lines 710 and the fourth auxiliary electrode lines 720 are arranged to cross.
Referring to fig. 11b, in a further embodiment, the first through holes 510 in two adjacent rows or two adjacent columns are arranged in a staggered manner, and the second through holes 520 in two adjacent rows or two adjacent columns are arranged in a staggered manner. The risk of short circuit caused by electric connection between the upper layer connecting circuit and the lower layer connecting circuit can be further avoided by staggered arrangement.
In a further embodiment, the second auxiliary electrode 700 is spaced apart from the first electrode unit 210 by a distance of at least one pixel width, and the first auxiliary electrode 600 is spaced apart from the second electrode unit 310 by a distance of at least one pixel width. The risk of short circuit between the second auxiliary electrode 700 and the first electrode unit 210 disposed on the same layer and the risk of short circuit between the first auxiliary electrode 600 and the second electrode unit 310 disposed on the same layer can be reduced, which can reduce difficulty in the process.
Referring to fig. 12, a touch display panel 10c is provided according to a fourth embodiment of the present invention, in the touch display panel 10c, the first electrode unit 210 and the second electrode unit 310 are in the same layer, and a second insulating layer 800 is disposed between the first connection portion 410 and the second connection portion 420 to insulate and separate the first connection portion 410 from the second connection portion 420 (see fig. 13). That is, the first connection portion 410 and the second connection portion 420 are insulated by the second insulating layer 800 only at the connection portion 400, and the connection portion 400 has three layers, namely, a layer where the first connection portion 410 is located, a layer where the second insulating layer 800 and the second connection portion 420 are located, and it can be understood that the layer where the first connection portion 410 is located and the layer where the second connection portion 420 is located may be exchanged in position.
Referring to fig. 12 and 14a to 14c, in a further embodiment, the touch display panel 10c further includes a first insulating layer 500 and a first auxiliary electrode 600, wherein the first insulating layer 500 is disposed at one side of the first electrode unit 210 and the second electrode unit 310. It may be understood that the first insulating layer 500 may cover the first and second electrode units 210 and 310 and the connection 400 between the first and second electrode units 210 and 310. The first auxiliary electrode 600 is disposed on a side of the first insulating layer 500 away from the first electrode unit 210, and the first auxiliary electrode 600 is disposed in a corresponding region of the first electrode unit 210. The first insulating layer 500 is provided with a first through hole 510, and the first auxiliary electrode 400 is connected to the first electrode unit 210 through the first through hole 510. Similarly, the first auxiliary electrode 600 is connected to the first electrode unit 210 via the upper and lower layers to form a parallel circuit, thereby reducing the total resistance. Especially when the size is large or the sheet resistance of the material used is high, the total resistance can be reduced by the arrangement of the auxiliary electrode. Referring to fig. 14a to 14c, in which fig. 14a indicates a layer where the first electrode unit 210 and the second electrode unit 310 are located, fig. 14b indicates a layer where the first insulating layer 500 is located, fig. 14c indicates a layer where the first auxiliary electrode 600 is located, the layer indicated in fig. 14b is disposed on the layer indicated in fig. 14a, and then the layer indicated in fig. 14c is disposed on the layer indicated in fig. 14b, and a partial cross-sectional view thereof is shown in fig. 12.
It is understood that, in this embodiment, the auxiliary electrode line in the first auxiliary electrode 600 coincides with the orthographic projection of the electrode line in the first electrode unit 210 on the first insulating layer 500, so that the resistance of the first auxiliary electrode 600 after being connected in parallel with the first electrode unit 210 can be further reduced.
In a further embodiment, the touch display panel 10c further includes a second auxiliary electrode 700, the second auxiliary electrode 700 is disposed on a side of the first insulating layer 500 away from the second electrode unit 310, and the second auxiliary electrode 700 is disposed in a corresponding area of the second electrode unit 310. The first insulating layer 500 is formed to penetrate the second through hole 520, and the second auxiliary electrode 700 and the second electrode unit 310 are connected through the second through hole 520. That is, the first electrode unit 210 and the second electrode unit 310 are disposed at the same layer, and the first auxiliary electrode 600 and the second auxiliary electrode 700 are disposed at the same layer. Similarly, the second auxiliary electrode 700 and the second electrode unit 310 are connected to form a parallel circuit through upper and lower layers, so that the total resistance can be reduced. Especially when the size is large or the sheet resistance of the material used is high, the total resistance can be reduced by the arrangement of the auxiliary electrode. It can be appreciated that the first auxiliary electrode 600 and the second auxiliary electrode 700 are spaced apart by a distance of at least one pixel width, reducing the risk of shorting.
It is understood that, in this embodiment, the auxiliary electrode line in the second auxiliary electrode 700 coincides with the orthographic projection of the electrode line in the second electrode unit 310 on the first insulating layer 500, so that the resistance of the second auxiliary electrode 700 connected in parallel with the second electrode unit 310 can be further reduced.
Referring to fig. 15, a touch display panel 10d according to a fifth embodiment of the present invention includes a light emitting functional layer 900 and an encapsulation layer 1000, in which the light emitting functional layer 900 is disposed on one side of a substrate 100, and the encapsulation layer 1000 is disposed on one side of the light emitting functional layer 900 away from the substrate 100. The light emitting function layer 900 includes a cathode 910, a first gap 911 is disposed in the cathode 910, and the first touch electrode chain 200 is disposed in the first gap 911. The second touch electrode chain 300 is disposed on a surface of the encapsulation layer 1000 away from the cathode 910 and the first touch electrode chain 200, the encapsulation layer 1000 includes a first insulating layer 500, and the second touch electrode chain 300 and the first touch electrode chain 200 are disposed in an insulating manner through the first insulating layer 500 in the encapsulation layer 1000.
It is understood that a second auxiliary electrode 700 not connected to the first touch electrode chain 200 may be disposed in the first gap 911, and the second auxiliary electrode 700 and the second touch electrode chain 300 are connected to form a parallel circuit by forming a second through hole 520 in the encapsulation layer 1000. And arranging a first auxiliary electrode 600 which is not connected with the second touch electrode chain 300 on the surface of the packaging layer 1000 away from the cathode 910 and the first touch electrode chain 200, and forming a parallel circuit by opening a first through hole 510 in the packaging layer 1000 so that the first auxiliary electrode 600 is connected with the first touch electrode chain 200. Thereby reducing the overall resistance.
It is understood that a thin film transistor layer 1100 is further disposed between the substrate 100 and the light emitting function layer 900. Light-emitting functional layer 900 further includes anode 930 and light-emitting layer 920, where anode 930 is disposed on a surface of thin-film-transistor layer 1100 away from substrate 100, light-emitting layer 920 is disposed on a surface of anode 930 away from thin-film-transistor layer 1100, and cathode 910 is disposed on a surface of light-emitting layer 920 away from anode 930.
Referring to fig. 16, a touch display panel 10e is provided according to a sixth embodiment of the present invention, in the touch display panel 10e, a first touch electrode chain 200 and a second touch electrode chain 300 are disposed in a light emitting functional layer 900. Specifically, the light emitting function layer 900 is provided on one side of the substrate 100, and the light emitting function layer 900 includes an anode 930, a light emitting layer 920, and a cathode 910. The anode 930 has a second gap 931 formed therein, and the first touch electrode chain 200 is disposed in the second gap 931. The anode 930 is disposed at one side of the substrate 100, and the light emitting layer 920 is disposed on a surface of the anode 930. The cathode 910 is disposed on a surface of the light emitting layer 920 away from the anode 930, a first gap 911 is disposed in the cathode 910, and the second touch electrode chain 300 is disposed in the first gap 911. The light emitting layer 920 includes a first insulating layer 500, and the second touch electrode chain 300 and the first touch electrode chain 200 are insulated by the first insulating layer 500 in the light emitting layer 920.
It is understood that the second auxiliary electrode 700, which is not connected to the first touch electrode chain 200, may be disposed in the second gap 931, and the second auxiliary electrode 700 and the second touch electrode chain 300 are connected to form a parallel circuit by forming the second through hole 520 in the light-emitting layer 920. And a first auxiliary electrode 600 not connected to the second touch electrode chain 300 may be disposed in the first gap 911, and the first auxiliary electrode 600 and the first touch electrode chain 200 are connected to form a parallel circuit by forming a first through hole 510 in the encapsulation layer 1000. Thereby reducing the overall resistance.
Referring to fig. 17, a touch display panel 10f is provided in a seventh embodiment of the present invention, in which the touch display panel 10f includes a package layer 1000, the package layer 1000 is disposed on one side of the substrate 100, the first touch electrode chain 200 is disposed on a surface of the package layer 1000, and the first insulating layer 500 is disposed on one side of the first touch electrode chain 200 away from the package layer 1000. That is, the first touch electrode chain 200 and the second touch electrode chain 300 are disposed above the package layer 1000 away from the substrate 100. The first touch electrode chain 200 and the second touch electrode chain 300 can be arranged in any manner of the first to third embodiments.
Referring to fig. 18, an eighth embodiment of the invention provides a touch display panel 10g, in the touch display panel 10g, a first touch electrode chain 200 and a second touch electrode chain 300 are disposed in an encapsulation layer 1000. Specifically, the encapsulation layer 1000 is disposed on one side of the substrate 100, the encapsulation layer 1000 includes a first layer 1010 and a second layer 1020, the first layer 1010 is disposed adjacent to the substrate 100 compared to the second layer 1020, the first insulation layer 500 is disposed between the first layer 1010 and the second layer 1020, the first layer 1010 is an organic layer or an inorganic layer, and the second layer 1020 is an organic layer or an inorganic layer. It is understood that the first insulating layer 400 may also be an organic layer or an inorganic layer. Preferably, the first layer 1010 is an inorganic layer, the first insulating layer 400 is an organic layer, and the second layer 1020 is an inorganic layer.
The first layer 1010 has a third gap 1011, the first touch electrode chain 200 is disposed in the third gap 1011, the second layer 1020 has a fourth gap 1021, and the second touch electrode chain 300 is disposed in the fourth gap 1021. The second touch electrode chain 300 and the first touch electrode chain 200 are insulated by the first insulating layer 500.
It is understood that, in addition to the fourth to seventh embodiments, the first touch electrode chain 200 and the second touch electrode chain 300 can be disposed in other film layers of the touch display panel 10 in the manner disclosed in the present invention.
Referring to fig. 19, the present invention further provides a touch display device 20, wherein the touch display device 20 includes the touch display panel 10 according to any of the above embodiments. The touch display device 20 may be, but not limited to, an electronic book, a smart Phone (e.g., an Android Phone, an iOS Phone, a Windows Phone), a tablet computer, a flexible palm computer, a flexible notebook computer, a Mobile Internet device (MID, Mobile Internet Devices), or a wearable device, or may be an Organic Light-Emitting Diode (OLED) touch display device, an Active Matrix Organic Light Emitting Diode (AMOLED) touch display device.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (19)
- A touch display panel, comprising:a substrate;the touch control panel comprises a substrate, a plurality of first touch control electrode chains arranged on the substrate at intervals, a plurality of second touch control electrode chains arranged on the substrate at intervals, a plurality of first electrode units arranged on the substrate at intervals, and a plurality of second electrode units arranged on the substrate at intervals, wherein each first electrode unit comprises a plurality of first electrode wires arranged at intervals and a plurality of second electrode wires arranged at intervals; andthe touch control device comprises a plurality of second touch control electrode chains arranged at intervals on a substrate, wherein the second touch control electrode chains and the first touch control electrode chains are arranged in a cross insulation mode, each second touch control electrode chain comprises a plurality of second electrode units, each second electrode unit comprises a plurality of third electrode wires arranged at intervals and a plurality of fourth electrode wires arranged at intervals, and the fourth electrode wires are arranged at the intervals in a cross mode and are electrically connected with the third electrode wires.
- The touch display panel according to claim 1, wherein a first sub-pixel region is formed between two adjacent first electrode lines and two adjacent second electrode lines; a second sub-pixel area is formed between two adjacent third electrode lines and two adjacent fourth electrode lines; the first sub-pixel area and the second sub-pixel area are used for accommodating sub-pixels.
- The touch display panel according to claim 2, wherein a boundary sub-pixel region is included between the adjacent first electrode units and the adjacent second electrode units, and a part of the first electrode lines, a part of the second electrode lines, a part of the third electrode lines, and a part of the fourth electrode lines form the boundary sub-pixel region; the boundary sub-pixel region is used for accommodating sub-pixels between the adjacent first electrode units and the second electrode units.
- The touch display panel according to any one of claims 1 to 3, wherein the second touch electrode chain and the first touch electrode chain intersect to form a connecting portion, the connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are arranged in an intersecting and insulating manner, the first connecting portion is used for connecting two adjacent first electrode units, and the second connecting portion is used for connecting two adjacent second electrode units.
- The touch display panel according to claim 4, wherein the touch display panel further comprises a first insulating layer, the first insulating layer is disposed on one side of the first touch electrode chain, and the second touch electrode chain is disposed on one side of the first insulating layer away from the first touch electrode chain.
- The touch display panel of claim 5, further comprising a first auxiliary electrode;the first auxiliary electrode is arranged on one side, away from the first electrode unit, of the first insulating layer and in a region corresponding to the first electrode unit;the first insulating layer is provided with a plurality of first through holes, and the first auxiliary electrode is connected with the first electrode unit through the first through holes.
- The touch display panel according to claim 6, wherein the first auxiliary electrode comprises a first auxiliary electrode line and a second auxiliary electrode line, the first auxiliary electrode line is overlapped with an orthographic projection of the first electrode line on the first insulating layer, and the second auxiliary electrode line is overlapped with an orthographic projection of the second electrode line on the first insulating layer.
- The touch display panel according to claim 6, further comprising a second auxiliary electrode;the second auxiliary electrode and the first electrode unit are in the same layer, and the second auxiliary electrode is arranged in a region corresponding to the second electrode unit;the first insulating layer is provided with a plurality of second through holes, and the second auxiliary electrode is connected with the second electrode unit through the second through holes.
- The touch display panel according to claim 8, wherein the second auxiliary electrode comprises a third auxiliary electrode line and a fourth auxiliary electrode line, the third auxiliary electrode line is overlapped with an orthographic projection of the third electrode line on the first insulating layer, and the fourth auxiliary electrode line is overlapped with an orthographic projection of the fourth electrode line on the first insulating layer.
- The touch display panel of claim 8, wherein the first through holes between two adjacent rows or two adjacent columns are staggered with respect to each other, and the second through holes between two adjacent rows or two adjacent columns are staggered with respect to each other.
- The touch display panel of claim 8, wherein the second auxiliary electrode is spaced apart from the first electrode unit by a distance of at least one pixel width, and wherein the first auxiliary electrode is spaced apart from the second electrode unit by a distance of at least one pixel width.
- The touch display panel according to claim 4, wherein the first electrode unit and the second electrode unit are in the same layer, and a second insulating layer is provided between the first connecting portion and the second connecting portion to insulate and separate the first connecting portion from the second connecting portion.
- The touch display panel according to claim 12, further comprising a first insulating layer and a first auxiliary electrode, wherein the first insulating layer is disposed on one side of the first electrode unit and the second electrode unit, the first auxiliary electrode is disposed on a side of the first insulating layer away from the first electrode unit, and the first auxiliary electrode is disposed in a region corresponding to the first electrode unit;the first insulating layer is provided with a first through hole, and the first auxiliary electrode is connected with the first electrode unit through the first through hole.
- The touch display panel according to claim 13, further comprising a second auxiliary electrode disposed on a side of the first insulating layer away from the second electrode unit, wherein the second auxiliary electrode is disposed in a region corresponding to the second electrode unit, the first insulating layer is provided with a second through hole, and the second auxiliary electrode and the second electrode unit are connected through the second through hole.
- The touch display panel according to any one of claims 5 to 11, wherein the touch display panel includes a light-emitting functional layer and an encapsulation layer, the light-emitting functional layer is disposed on one side of the substrate, and the encapsulation layer is disposed on one side of the light-emitting functional layer away from the substrate; the light-emitting functional layer comprises a cathode, a first gap is arranged in the cathode, and the first touch electrode chain is arranged in the first gap; the second touch electrode chain is arranged on the surface, away from the cathode and the first touch electrode chain, of the packaging layer, the packaging layer comprises the first insulating layer, and the second touch electrode chain and the first touch electrode chain are arranged in an insulating mode through the first insulating layer in the packaging layer.
- The touch display panel according to any one of claims 5 to 11, wherein the touch display panel includes a light-emitting functional layer provided on one side of the substrate, the light-emitting functional layer including an anode, a light-emitting layer, and a cathode; the anode is arranged on one side of the substrate, a second gap is formed in the anode, and the first touch electrode chain is arranged in the second gap; the light emitting layer is disposed on a surface of the anode; the cathode is arranged on the surface of the light-emitting layer far away from the anode, a first gap is formed in the cathode, and the second touch electrode chain is arranged in the first gap; the light-emitting layer comprises the first insulating layer, and the second touch electrode chain and the first touch electrode chain are arranged in an insulating mode through the first insulating layer in the light-emitting layer.
- The touch display panel according to any one of claims 5 to 14, wherein the touch display panel includes an encapsulation layer, the encapsulation layer is disposed on one side of the substrate, the first touch electrode chain is disposed on a surface of the encapsulation layer, and the first insulating layer is disposed on a side of the first touch electrode layer away from the encapsulation layer.
- The touch display panel according to any one of claims 5 to 11, wherein the touch display panel comprises an encapsulation layer, the encapsulation layer is provided on one side of the substrate, the encapsulation layer comprises a first layer and a second layer, the first layer is provided adjacent to the substrate compared to the second layer, the first insulating layer is provided between the first layer and the second layer, the first layer is an organic layer or an inorganic layer, and the second layer is an organic layer or an inorganic layer;a third gap is formed in the first layer, the first touch electrode chain is arranged in the third gap, a fourth gap is formed in the second layer, and the second touch electrode chain is arranged in the fourth gap; the second touch electrode chain and the first touch electrode chain are arranged in an insulating mode through the first insulating layer.
- A touch display device, characterized in that the touch display device comprises a touch display panel according to any one of claims 1-18.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/099420 WO2020029121A1 (en) | 2018-08-08 | 2018-08-08 | Touch display panel and touch display device |
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| CN112639704A true CN112639704A (en) | 2021-04-09 |
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| CN201880094165.6A Pending CN112639704A (en) | 2018-08-08 | 2018-08-08 | Touch display panel and touch display device |
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| WO (1) | WO2020029121A1 (en) |
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| CN113126834B (en) * | 2021-04-21 | 2024-07-02 | 京东方科技集团股份有限公司 | Touch substrate, touch display panel and touch display device |
| CN114860103A (en) * | 2022-04-12 | 2022-08-05 | 武汉华星光电半导体显示技术有限公司 | Touch sensor, display panel and electronic device |
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|---|---|---|---|---|
| CN104407742A (en) * | 2014-12-12 | 2015-03-11 | 合肥鑫晟光电科技有限公司 | Touch substrate, manufacturing method of touch substrate and display device |
| CN104793833A (en) * | 2015-05-18 | 2015-07-22 | 合肥鑫晟光电科技有限公司 | Touch substrate and manufacturing method thereof as well as display device |
| US20180059862A1 (en) * | 2017-03-30 | 2018-03-01 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch control display panel and touch control display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9064772B2 (en) * | 2005-10-07 | 2015-06-23 | Integrated Digital Technologies, Inc. | Touch screen system having dual touch sensing function |
| CN104834407B (en) * | 2015-05-29 | 2019-01-22 | 合肥鑫晟光电科技有限公司 | Preparation method, touch panel and the display device of touch panel |
| CN107831960A (en) * | 2017-12-12 | 2018-03-23 | 武汉华星光电半导体显示技术有限公司 | Contact panel and contactor control device |
| CN108089768A (en) * | 2018-01-25 | 2018-05-29 | 武汉华星光电半导体显示技术有限公司 | Touch panel structure provided and flexible touch display device |
-
2018
- 2018-08-08 WO PCT/CN2018/099420 patent/WO2020029121A1/en active Application Filing
- 2018-08-08 CN CN201880094165.6A patent/CN112639704A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407742A (en) * | 2014-12-12 | 2015-03-11 | 合肥鑫晟光电科技有限公司 | Touch substrate, manufacturing method of touch substrate and display device |
| CN104793833A (en) * | 2015-05-18 | 2015-07-22 | 合肥鑫晟光电科技有限公司 | Touch substrate and manufacturing method thereof as well as display device |
| US20180059862A1 (en) * | 2017-03-30 | 2018-03-01 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch control display panel and touch control display device |
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Application publication date: 20210409 |