CN109933234A - Touch-control display panel and display equipment - Google Patents
Touch-control display panel and display equipment Download PDFInfo
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- CN109933234A CN109933234A CN201910088157.7A CN201910088157A CN109933234A CN 109933234 A CN109933234 A CN 109933234A CN 201910088157 A CN201910088157 A CN 201910088157A CN 109933234 A CN109933234 A CN 109933234A
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- cabling
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Abstract
This application discloses a kind of touch-control display panel and display equipment, which includes: display base plate, and display base plate includes the first metal layer, is equipped with the first cabling in the first metal layer；First insulating layer is set to above display base plate；First touch control electrode layer is set to above the first insulating layer, and the first auxiliary cabling is equipped in the first touch control electrode layer；Wherein, at least two first via holes are equipped in the first insulating layer, the first cabling is electrically connected with the first auxiliary cabling by the first via hole parallel connection.By the above-mentioned means, the application can be improved the display homogeneity of touch-control display panel.
Description
Technical field
This application involves field of display technology, more particularly to a kind of touch-control display panel and display equipment.
Background technique
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display is current FPD
One of the hot spot of device research field, compared with liquid crystal display, OLED has that low energy consumption, production cost be low, self-luminous, wide viewing angle
And the advantages that fast response time, have more application in flat display fields such as mobile phone, PDA, digital cameras at present.With display
The development of technology, the screen of FPD is gradually to comprehensive screen development, and screen is comprehensively with its side with biggish screen accounting, ultra-narrow
Frame can greatly improve the visual effect of viewer compared with common display screen, to have received widespread attention.
Summary of the invention
As frame requirement is more and more narrow, it is limited in space, the edge cabling of display screen body can run business into particular one, trace resistances
It increases accordingly, so that display screen body is reduced in driving chip (Driver IC) distal end voltage, it is aobvious so as to cause the proximal end IC and distal end
Show uneven.
The application can be improved touch-control mainly solving the technical problems that provide a kind of touch-control display panel and display equipment
The display homogeneity of display panel.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of touch-control display panel, institute
Stating touch-control display panel includes: display base plate, including the first metal layer, is equipped with the first cabling in the first metal layer；First insulation
Layer is set to above display base plate；First touch control electrode layer is set to above the first insulating layer, is set in the first touch control electrode layer
There is the first auxiliary cabling；Wherein, at least two first via holes are equipped in the first insulating layer, the first cabling and the first auxiliary cabling are logical
Cross the first via hole parallel connection electrical connection.
Wherein, touch function cabling is equipped in the first touch control electrode layer, the first auxiliary cabling does not connect with touch function cabling
It connects.
Wherein, touch-control display panel further includes being set to second insulating layer above the first touch control electrode layer and being set to the
Second touch control electrode layer above two insulating layers is equipped with the second auxiliary cabling in second touch control electrode layer, sets in second insulating layer
There are at least two second via holes, the second auxiliary cabling passes through the second via hole electricity in parallel with the first auxiliary cabling and/or the first cabling
Connection.
Wherein, be equipped with touch function cabling in the first touch control electrode layer and second touch control electrode layer, the first auxiliary cabling and
Second auxiliary cabling is not connect with touch function cabling.
Wherein, touch-control display panel further includes the driving chip with display base plate coupling, and one end of the first cabling, which connects, drives
The density of dynamic chip, the first via hole and/or the second via hole is bigger further away from driving chip.
Wherein, touch-control display panel further includes the driving chip with display base plate coupling, and one end of the first cabling, which connects, drives
The width of dynamic chip, the first auxiliary cabling and/or the second auxiliary cabling is bigger further away from driving chip.
Wherein, the first auxiliary cabling and/or the second auxiliary cabling are arranged in parallel with the first cabling.
Wherein, the first cabling is low level cabling and/or high level cabling.
Wherein, the first auxiliary cabling and/or the second auxiliary cabling are set to the outside of touch function cabling.
In order to solve the above technical problems, another technical solution that the application uses is: a kind of display equipment is provided, including
Driving circuit and the above-mentioned touch-control display panel coupled with driving circuit, wherein driving circuit is used for touch-control display panel
Driving signal is provided, so that touch-control display panel shows image.
The beneficial effect of the application is: being in contrast to the prior art, the application provides a kind of touch-control display panel, leads to
The first auxiliary of setting cabling in the first touch control electrode layer is crossed, and by the way that the first via hole is arranged in the first insulating layer, with logical
It crosses the first via hole and is electrically connected corresponding first cabling with the first auxiliary cabling parallel connection, that is, in parallel on the first cabling
One resistance, so as to so that the resistance of the first cabling reduces, when so that electric current passing through the first cabling, resistance drop (IR
Drop) it is unlikely to that difference is too big, to guarantee the stabilization of the voltage value in display panel, the power consumption of screen can either be reduced, also
The display homogeneity of screen entirety can be improved.In addition, the first auxiliary cabling is set in touch control electrode layer, it will not be to display base plate
Original cabling brings change or influence.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application touch-control display panel first embodiment；
Fig. 2 be in Fig. 1 touch-control display panel along the schematic diagram of the section structure in the direction AA '；
Fig. 3 is the schematic diagram of the section structure of the application touch-control display panel second embodiment；
Fig. 4 is the schematic diagram of the section structure of the application touch-control display panel third embodiment；
Fig. 5 is the schematic diagram of the section structure of the 4th embodiment of the application touch-control display panel；
Fig. 6 is the schematic diagram of the section structure of the 5th embodiment of the application touch-control display panel；
Fig. 7 is the structural schematic diagram of the application touch control display device first embodiment.
Specific embodiment
It is right as follows in conjunction with drawings and embodiments to keep the purpose, technical solution and effect of the application clearer, clear
The application is further described.
The application provides a kind of touch-control display panel and display equipment, which includes display base plate and touch-control
Sensing layer；Wherein, display base plate includes the first metal layer, is equipped with the first cabling in the first metal layer；It is equipped in touch-control sensing layer
With the first cabling is connected in parallel on display base plate the first auxiliary cabling, reduce display driver chip proximal end and distal end to reach
Voltage drop improves the effect of show uniformity.Wherein, touch-control display panel disclosed in the present application can be used for multiple display modes,
Such as OLED is shown, quantum dot is shown, Micro-LED is shown.Here it is illustrated so that OLED is shown as an example, but is not limited to this
Display mode.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the structural schematic diagram of the application touch-control display panel first embodiment, and Fig. 2 is
The schematic diagram of the section structure of the touch-control display panel along the direction AA ' in Fig. 1.In this embodiment, touch-control display panel includes: aobvious
Show substrate, touch-control sensing layer, insulating layer.Display base plate includes substrate 101 and the first metal layer 102, is set in the first metal layer 102
There is the first cabling；Touch-control sensing layer is set to above display base plate, and including the first touch control electrode layer 201, the first touch control electrode
The first auxiliary cabling is equipped in layer 201；First insulating layer 30, is set between display base plate and touch-control sensing layer；Wherein, first
Insulating layer 30 is equipped at least two the first via holes 301 for running through the first insulating layer 30, and the first via hole can be along the first metal layer 102
Or first touch control electrode layer 201 be arranged.First cabling is electrically connected with the first auxiliary cabling by the way that the first via hole 301 is in parallel.
In this embodiment, cabling is assisted by the way that first is arranged in the first touch control electrode layer, and by first
First via hole is set in insulating layer, to make corresponding first cabling assist cabling to be connected in parallel with first by the first via hole, i.e.,
A resistance it has been equivalent on the first cabling in parallel, so as to so that the resistance of the first cabling reduces.So that electric current passes through the
When one cabling, resistance drop (IR Drop) is unlikely to that difference is too big, to guarantee the stabilization of the voltage value in display panel, both
The power consumption of screen can be reduced, additionally it is possible to improve the display homogeneity of screen entirety.In addition, the first auxiliary cabling is set to touch-control electricity
In the layer of pole, change or influence will not be brought on the original cabling of display base plate.
Wherein, in one embodiment, the first cabling can be low level cabling, such as can be VSSCabling, at this point, the
One auxiliary cabling is VSSAssist cabling.In other embodiments, the first cabling is also possible to high level cabling and its auxiliary is walked
Line, such as can be VDDCabling and VDDCabling is assisted, here with VSSCabling and VSSIt is illustrated for auxiliary cabling, but unlimited
In this mode.
Specifically, display base plate is organic light-emitting diode display substrate, and optionally, display base plate includes at least substrate base
Plate, pixel circuit array, anode layer, organic electro luminescent layer and cathode layer.Display base plate has viewing area, non-display area and ties up
Determine area, is equipped with high level cabling, such as V in the non-display areaDDCabling (not shown) and low level cabling, such as VSSCabling
102.Binding is provided with driving chip 103 in area；VSS102 one end of cabling connects driving chip 103.It is shown in display panel
When work, due to VSSThe pressure drop of cabling leads to cathode voltage signal of the display panel at driving chip proximally and distally position
It differs greatly, display is uneven.On this basis, the application provides a VSSAssist cabling and VSSCabling parallel connection electrical connection, to reduce
VSSThe resistance of cabling.
Wherein, in touch panel, touch control electrode layer is metal layer, and the application utilizes the vacant sky in edge of touch-control metal layer
Between V is setSSCabling is assisted, V can either be compensatedSSThe resistance voltage drop problem of cabling, will not also occupy display base plate it is original walk
Space of lines.
Specifically, touch function cabling, V are equipped in the first touch control electrode layerSSAssist cabling be independently, not with touch-control function
Other auxiliary cablings of energy cabling connection, VSSCabling is assisted to be set to the outside of touch function cabling.I.e. in patterned metal layer shape
While at touch function cabling, etching forms V in same metal layerSSCabling is assisted, not will increase manufacturing process, while not
It will increase new metal layer；Existing panel space is made full use of, panel performance is optimized.On the other hand, by VSSAuxiliary cabling is set to
The outside of touch function cabling will not interfere existing touch-control cabling, without the existing touch function cabling of change
Layout, additionally it is possible to play the role of protecting electrostatic (ESD), the electric current of absorption is imported into VSSCabling further decreases resistance drop.
In the embodiment of Fig. 2, substrate 101 and the first metal for the sake of clarity, in display base plate illustrate only
Layer 102, however it will be appreciated by the appropriately skilled person that can also include semiconductor active layer, OLED device in display base plate
Layer, encapsulated layer etc. and in order to improve the various layers (such as planarization layer, transition zone etc.) of each layer performance and interlayer performance.
Referring to Fig. 3, Fig. 3 is the schematic diagram of the section structure of the application touch-control display panel second embodiment.In the reality
It applies in mode, touch-control display panel further includes being set to the second insulating layer 40 of 201 top of the first touch control electrode layer and being set to
State the second touch control electrode layer 501 of 40 top of second insulating layer.The 2nd V is equipped in second touch control electrode layer 501SSAssist cabling.
First VSSAuxiliary cabling is electrically connected by the first via hole 301 of the first insulating layer 30 with the first cabling parallel connection；2nd VSSAuxiliary is walked
Line 501 passes through the second via hole 401 and the first V of second insulating layer 40SSAssist cabling and/or the first cabling parallel connection electrical connection.?
In another embodiment, when the edge of second insulating layer 40 extends and wraps up the side and first of the first touch control electrode layer 201 absolutely
The side of edge layer 30, and when being contacted with the upper surface of the first metal layer 102, at this time the second mistake of part of second insulating layer edge
Hole can directly be penetrated through to the first metal layer, the 2nd VSSAssist cabling that can directly pass through the second via hole of second insulating layer 40
401 are electrically connected with the first cabling parallel connection.By the way that V is all arranged in two layers of touch control electrode layerSSCabling is assisted, it can be to a greater degree
Resistance is reduced, is easier to that display homogeneity is adjusted.Touch-control function is equipped in first touch control electrode layer and second touch control electrode layer
Energy cabling, the first auxiliary cabling and the second auxiliary cabling are not connect with touch function cabling.
In other embodiments, VSSAuxiliary cabling can be positioned only in the first touch control electrode layer or be positioned only at second
In touch control electrode layer.
In setting VSSWhen assisting cabling, it is preferable that control VSSAssist cabling and VSSCabling is arranged in parallel, in order to the two
Punching connection, reduces cabling connection " distance ", increases compensation effect.
Referring to Fig. 4, Fig. 4 is the schematic diagram of the section structure of the application touch-control display panel third embodiment.In the reality
It applies in mode, the V in the first metal layer 102SSV in cabling and touch control electrode layer 201SSCabling is assisted to pass through exhausted through first
The electrical connection in parallel of the first via hole 301 of edge layer 30, the first via hole 301 are multiple, and the on the direction far from driving chip 103
The density of one via hole 301 is bigger, i.e., further away from driving chip, the first via hole is more.This is because further away from driving chip, VSS
The resistance drop of cabling is bigger, by the way that via hole is arranged more, is capable of providing more magnitudes of current, increases compensation effect, make display more
It is uniform.
Referring to Fig. 5, Fig. 5 is the schematic diagram of the section structure of the 4th embodiment of the application touch-control display panel.In the reality
It applies in mode, the V in the first metal layer 102SSV in cabling and touch control electrode layer 201SSCabling is assisted to pass through exhausted through first
The electrical connection in parallel of the first via hole 301 of edge layer 30；The 2nd V in second touch control electrode layer 501SSCabling is assisted to pass through the second insulation
The second via hole 401 and the first V of layer 40SSAssist cabling and/or the first cabling parallel connection electrical connection.Second via hole 401 is multiple, and
The density of second via hole 401 is bigger on the direction far from driving chip 103, i.e., further away from driving chip, the second via hole is more.
In one embodiment, only the spacing of the first via hole can also be selected to gradually become smaller along the direction far from driving chip, and second
The spacing of via hole is constant.Alternatively, the spacing of the second via hole is only selected to gradually become smaller along the direction far from driving chip, and the first mistake
The spacing in hole is constant.
Wherein, in one embodiment, VSSAssist the width of cabling bigger further away from driving chip.I.e. further away from driving core
Piece, VSSAssist cabling thicker.This is because further away from driving chip, VSSThe resistance drop of cabling is bigger, by by VSSAuxiliary
Cabling does the resistance that can slightly reduce auxiliary cabling, more reduces VSSThe resistance of cabling increases compensation effect, makes display more
It is uniform.In one embodiment, the first V can only be selectedSSThe width of cabling is assisted gradually to become along the direction far from driving chip
Greatly, the 2nd VSSAssist the width of cabling constant.Alternatively, the 2nd VSSAssist the width of cabling along the direction far from driving chip
It becomes larger, and the first VSSAssist the width of cabling constant.It can certainly select the first VSSAssist cabling and the 2nd VSSAuxiliary
The width of cabling all becomes larger along the direction far from driving chip.
Wherein, in one embodiment, display panel has thin-film encapsulation layer (TFE), and touch-control sensing layer is located at film envelope
It fills above layer.Referring to Fig. 6, Fig. 6 is the schematic diagram of the section structure of the 5th embodiment of the application touch-control display panel.In the reality
It applies in mode, touch-control display panel includes display base plate, and display base plate includes substrate layer 601 and thin-film encapsulation layer 602, and touch-control passes
Sense layer is located above thin-film encapsulation layer 602, and touch-control sensing layer includes touch-control prime coat (the first insulating layer) the 603, first touch-control electricity
Pole layer 604, second insulating layer 605, second touch control electrode layer 606, protective layer 607.It can be in the first touch control electrode layer 604,
V is set in two touch control electrode layers 606SSAssist cabling.V is set in the first touch control electrode layer 604SSWhen assisting cabling, via hole is answered
Through thin-film encapsulation layer 602 and touch-control prime coat 603.Wherein, touch-control prime coat is the first insulating layer in above embodiment.
Wherein, display base plate is organic light-emitting diode display substrate, and optionally, display base plate includes at least substrate base
Plate, pixel circuit array, anode layer, organic electro luminescent layer and cathode layer.Underlay substrate is chosen as flexible base board, such as polyamides
Imines substrate etc..Display base plate has viewing area, non-display area, and encapsulated layer at least encapsulates covering viewing area.Encapsulated layer for example may be used
To include inorganic encapsulated layer, organic encapsulation layer, inorganic encapsulated layer three-decker, steam and oxygen can be stopped.Touch-control prime coat
Material with insulating layer can be inorganic material, and inorganic material is, for example, one of following material or a variety of: Al2O3、TiO2、
ZrO2、MgO、HFO2、Ta2O5、Si3N4、AlN、SiN、SiNO、SiO、SiO2、SiC、SiCNx, ITO, IZO etc..Protective layer can be
Organic material, organic material can be transparent organic resin, specifically be chosen as organic acid doped polyaniline, cross-linking monomer and first
The transparent conductive resin etc. of benzene composition.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram of the application touch control display device first embodiment.In the embodiment party
In formula, touch control display device 70 includes driving circuit 701 and touch-control display panel 702, wherein driving circuit 701 is used for touching
It controls display panel 702 and driving signal is provided, so that touch-control display panel 702 shows image.Wherein, touch-control display panel includes:
Display base plate, including the first metal layer are equipped with the first cabling in the first metal layer；First insulating layer, is set on display base plate
Side；First touch control electrode layer is set to above the first insulating layer, and the first auxiliary cabling is equipped in the first touch control electrode layer；Wherein,
At least two first via holes are equipped in first insulating layer, the first cabling is electrically connected with the first auxiliary cabling by the way that the first via hole is in parallel
It connects.Specific structure please refers to the description of above embodiment, and details are not described herein, the display equipment in use, display uniformly,
Display effect is good.The display equipment can be mobile phone, TV, display screen of MP3, VR glasses etc..
Above scheme, the application provide a kind of touch-control display panel, auxiliary by the way that first is arranged in the first touch control electrode layer
Cabling is helped, and by the way that the first via hole is arranged in the first insulating layer, to make corresponding first cabling and by the first via hole
One auxiliary cabling is connected in parallel.That is, a resistance in parallel on the first cabling, so as to so that the first cabling electricity
Resistance reduces, and when so that electric current passing through the first cabling, it is too big that resistance drop (IR drop) is unlikely to difference, to guarantee display surface
The stabilization of voltage value in plate can either reduce the power consumption of screen, additionally it is possible to improve the display homogeneity of screen entirety.In addition,
First auxiliary cabling is set to touch control electrode layer, will not bring change or influence to the original cabling of display base plate.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of touch-control display panel, which is characterized in that the touch-control display panel includes:
Display base plate, including the first metal layer are equipped with the first cabling in the first metal layer；
First insulating layer is set to above the display base plate；
First touch control electrode layer is set to above first insulating layer, and the first auxiliary is equipped in first touch control electrode layer
Cabling；
Wherein, at least two first via holes, first cabling and the first auxiliary cabling are equipped in first insulating layer
It is electrically connected by the first via hole parallel connection.
2. touch-control display panel according to claim 1, which is characterized in that be equipped with touch-control in first touch control electrode layer
Function cabling, the first auxiliary cabling are not connect with the touch function cabling.
3. touch-control display panel according to claim 1, which is characterized in that the touch-control display panel further includes being set to
Second insulating layer above first touch control electrode layer and the second touch control electrode layer being set to above the second insulating layer,
It is equipped with the second auxiliary cabling in the second touch control electrode layer, is equipped at least two second via holes, institute in the second insulating layer
It states the second auxiliary cabling and is electrically connected by second via hole with the first auxiliary cabling and/or the first cabling parallel connection.
4. touch-control display panel according to claim 3, which is characterized in that first touch control electrode layer and the second touch-control
Touch function cabling is equipped in electrode layer, the first auxiliary cabling and the second auxiliary cabling are not walked with the touch function
Line connection.
5. touch-control display panel described in any one of -4 according to claim 1, which is characterized in that the touch-control display panel is also
Including the driving chip coupled with the display base plate, one end connection driving chip of first cabling, described first
The density of via hole and/or second via hole is bigger further away from the driving chip.
6. touch-control display panel described in any one of -4 according to claim 1, which is characterized in that the touch-control display panel is also
Including the driving chip coupled with the display base plate, one end connection driving chip of first cabling, described first
Assist the width of cabling and/or the second auxiliary cabling bigger further away from the driving chip.
7. touch-control display panel described in any one of -4 according to claim 1, which is characterized in that the first auxiliary cabling
And/or the second auxiliary cabling is arranged in parallel with first cabling.
8. touch-control display panel according to any one of claim 1-3, which is characterized in that first cabling is low electricity
Flat cabling and/or high level cabling.
9. touch-control display panel according to claim 2 or 4, which is characterized in that the first auxiliary cabling and/or described
Second auxiliary cabling is set to the outside of the touch function cabling.
10. a kind of display equipment, which is characterized in that the display equipment includes driving circuit and couples with the driving circuit
Touch-control display panel of any of claims 1-9, wherein the driving circuit is used for the touch-control display panel
Driving signal is provided, so that the touch-control display panel shows image.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910088157.7A CN109933234A (en) | 2019-01-29 | 2019-01-29 | Touch-control display panel and display equipment |
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| CN201910088157.7A CN109933234A (en) | 2019-01-29 | 2019-01-29 | Touch-control display panel and display equipment |
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| US11487174B2 (en) | 2020-05-13 | 2022-11-01 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Array substrate and liquid crystal display panel |
| CN112783377A (en) * | 2021-02-25 | 2021-05-11 | 惠州市华星光电技术有限公司 | Touch panel and touch device |
| US11853508B2 (en) | 2021-02-25 | 2023-12-26 | Huizhou China Star Optoelectronics Display Co., Ltd. | Touch panel and touch device |
| CN112783377B (en) * | 2021-02-25 | 2023-02-28 | 惠州市华星光电技术有限公司 | Touch panel and touch device |
| CN113193032A (en) * | 2021-04-29 | 2021-07-30 | 合肥维信诺科技有限公司 | Display panel, display device and preparation method of display panel |
| CN113918051B (en) * | 2021-10-11 | 2023-06-27 | 武汉华星光电半导体显示技术有限公司 | Touch display panel |
| CN113918051A (en) * | 2021-10-11 | 2022-01-11 | 武汉华星光电半导体显示技术有限公司 | Touch control display panel |
| US20230116927A1 (en) * | 2021-10-18 | 2023-04-20 | Lg Display Co., Ltd. | Touch display device |
| US11816282B2 (en) * | 2021-10-18 | 2023-11-14 | Lg Display Co., Ltd. | Touch display device |
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Application publication date: 20190625 Assignee: Yungu (Gu'an) Technology Co., Ltd.|Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd Assignor: Kunshan Guo Xian Photoelectric Co., Ltd. Contract record no.: X2019990000156 Denomination of invention: A touch display panel and display device License type: Common License Record date: 20191030 |
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Effective date of registration: 20191206 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Applicant after: Guangzhou Guoxian Technology Co., Ltd Address before: 215300, No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou, 4 Applicant before: Kunshan Guo Xian Photoelectric Co., Ltd. |