CN107507840A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN107507840A CN107507840A CN201710758807.5A CN201710758807A CN107507840A CN 107507840 A CN107507840 A CN 107507840A CN 201710758807 A CN201710758807 A CN 201710758807A CN 107507840 A CN107507840 A CN 107507840A
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- 239000012528 membrane Substances 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 abstract description 9
- 238000001259 photo etching Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 37
- 238000000034 method Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of display panel and display device, belongs to display technology field, including stack the first film layer set, the second film layer；Stepped region；Second membrane layer portion covers the first film layer and exposes part the first film layer upper surface to form first step structure；A plurality of signal lead；In stepped region, a plurality of signal lead is arranged on the surface of first step structure；In stepped region, at least two first cut-off portions are included between two adjacent bars cablings, the first cut-off portion is connected with the section of the second film layer；Along the bearing of trend of the signal lead on the first film layer upper surface, the length at least two first cut-off portions is incomplete same.It can prevent during display panel is manufactured, due to two signal lead short circuits adjacent caused by photoetching glue residua, improve the yield of display panel.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of display panel and display device.
Background technology
In the display panel that prior art provides, including the film layer of multiple-level stack setting and more signal lines.
Incorporated by reference to the part plan structural representation for reference to figure 1 and Fig. 2, Fig. 1 being a kind of display panel that prior art provides
Figure, Fig. 2 is the cross-sectional view of the XX ' lines along Fig. 1.In the display panel that prior art provides, including set gradually
Underlay substrate 01, the first film layer 02 and the second film layer 03.Wherein, the part of the first film layer 02 covering underlay substrate 01, and the second film
03 part of layer covers the first film layer 02, and underlay substrate 01, the first film layer 02 form similar step shape with the second film layer 03
Ledge structure.Signal wire 04 extends to underlay substrate 01 from the surface of the second film layer 03 by ledge structure, and signal wire 04 is used for
Transmit the electric signal in display panel.
During the display panel that manufacture prior art provides, in the underlay substrate 01 that completes, the first film layer 02
With after the second film layer 03, it is necessary to make signal wire 04.Making the detailed process of signal wire 04 includes：First underlay substrate 01,
First film layer 02 and the second film layer 03 stack the body structure surface formed and form a layer signal wire rod bed of material, then in signal line material
Layer surface coats one layer of photoresist, and photoresist is patterned using mask plate, photoresist is formed the pattern of needs；Then
After wet etching or dry etching, the segment signal line material layer being covered by photoresist is retained, and is not photo-etched
The segment signal line material layer of glue covering is removed.
But it is the position at the interior turning of ledge structure, region A and region B in ledge structure, in region A and region B
The place of putting is typically easy to remain photoresist, and the two can not be removed completely during being patterned using mask plate to photoresist
The photoresist of opening position.Between two adjacent signal wires 04, region A or with the B of region, the photoresist of residual is usually straight
The strip of line segment shape.The photoresist of residual can make it that the segment signal line material layer of region A and region B opening position can not
It is removed, so as to cause the adjacent short circuit of two signal wires 04, makes the yield of display panel reduce.
The content of the invention
In view of this, the invention provides a kind of display panel and display device.
The invention provides a kind of display panel, including：Stack the first film layer set, the second film layer；First film layer is leaned on
One side surface of nearly second film layer is the first film layer upper surface, and the second film layer is the second film layer away from a side surface of the first film layer
Upper surface；Stepped region；Second membrane layer portion covers the first film layer and exposes part the first film layer upper surface to form First
Stage structure；The surface of first step structure includes part the second film layer upper surface, the section of the film layer of part second, the film of part first
Layer upper surface；Wherein, the section of the second film layer connects the second film layer upper surface and the first film layer upper surface；A plurality of signal lead；
In stepped region, a plurality of signal lead is arranged on the surface of first step structure；In stepped region, two adjacent bars cablings
Between include at least two first cut-off portions, the first cut-off portion is connected with the section of the second film layer；Along along the first film layer upper surface
Signal lead bearing of trend, the length at least two first cut-off portions is incomplete same.
In some optional embodiments, the first cut-off portion is identical with the material of the second film layer；First cut-off portion and second
Film layer is integrally formed in same manufacture craft.
In some optional embodiments, in addition to third membrane layer；Third membrane layer is arranged on the second film layer upper surface；3rd
Film layer is third membrane layer upper surface away from a side surface of the second film layer；In stepped region, third membrane layer part covers the second film
Layer simultaneously exposes part the second film layer upper surface to form second step structure；The surface of second step structure includes part the 3rd
Film layer upper surface, the section of part third membrane layer, part the first film layer upper surface；Wherein, the section connection the 3rd of third membrane layer
Film layer upper surface and the second film layer upper surface；In stepped region, a plurality of signal lead is arranged on the surface of second step structure；Phase
Include at least two second cut-off portions, the section connection of the second cut-off portion and third membrane layer between two adjacent bars cablings；Edge
The bearing of trend of signal lead on second film layer upper surface, the length at least two second cut-off portions are incomplete same.
In some optional embodiments, the second cut-off portion is identical with the material of third membrane layer；Second cut-off portion and the 3rd
Film layer is integrally formed in same manufacture craft.
In some optional embodiments, at least one second cut-off portion includes lengthening the second cut-off portion, lengthens second
Cut-off portion extends to the section and the first film layer upper surface of the second film layer from the second film layer upper surface.
In some optional embodiments, along the bearing of trend of the signal lead on the first film layer upper surface, the first film layer
The length in the second cut-off of lengthening portion on upper surface is 15-20 μm.
It is at least one along the bearing of trend of the signal lead on the second film layer upper surface in some optional embodiments
In second cut-off portion, in addition to the second cut-off portion of lengthening, remaining length of the second cut-off portion on the second film layer upper surface is 5-10 μ
m。
In some optional embodiments, between adjacent two bars cabling include at least one second lengthen cut-off portion and
At least two first cut-off portions；The second cut-off portion is lengthened to be arranged between two adjacent the first cut-off portions.
In some optional embodiments, along the bearing of trend of the signal lead on the first film layer upper surface, the first film layer
The length in the second cut-off of lengthening portion on upper surface is a, and the length in the first cut-off portion adjacent with lengthening the second cut-off portion is b,
Wherein, b-a >=5 μm.
In some optional embodiments, between two adjacent bars cablings, the first cut-off portion is handed over the second cut-off portion
For setting.
In some optional embodiments, between two adjacent bars cablings, the first adjacent cut-off portion and second every
The distance between disconnected portion is d1, d1 >=2.5 μm.
In some optional embodiments, the first film layer is flexible substrate layer；Second film layer includes at least one layer of inorganic layer；
Third membrane layer includes at least one layer of inorganic layer.
In some optional embodiments, along the bearing of trend of the signal lead on the first film layer upper surface, the first film layer
The length in the first cut-off portion on upper surface is 5-10 μm.
In some optional embodiments, display panel includes the non-display area on viewing area and periphery；Stepped region is arranged on
Non-display area；A plurality of signal lead extends to stepped region from viewing area.
In some optional embodiments, display panel includes multiple Organic Light Emitting Diodes.
Present invention also offers a kind of display device, including display panel provided by the invention.
Compared with prior art, display panel provided by the invention and display device, following beneficial effect is at least realized
Fruit：
In display panel provided by the invention and display device, display panel includes stacking the first film layer set, second
Film layer.Display panel also includes stepped region, and stepped region includes first step structure.Second membrane layer portion the first film layer of covering is simultaneously sudden and violent
Exposed portion the first film layer upper surface forms first step structure.A plurality of signal lead is arranged on the table of first step structure
Face.Wherein, at least two first cut-off portions are included between two adjacent bars cablings；First cut-off portion is cut with the second film layer
Face connects.By setting cut-off portion in the section of the second film layer, can prevent during display panel is manufactured, due to photoetching
Two adjacent signal lead short circuits caused by glue residua；In addition, the incomplete phase of length at least two second cut-off portions
Together, adjacent two signal lead short circuits caused by photoetching glue residua can be further prevented, improve the yield of display panel.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is a kind of part plan structural representation for display panel that prior art provides；
Fig. 2 is the cross-sectional view of the XX ' lines along Fig. 1；
Fig. 3 is a kind of part plan structural representation of display panel provided in an embodiment of the present invention；
Fig. 4 is the cross-sectional view of the YY ' lines along Fig. 3；
Fig. 5 is the cross-sectional view of the ZZ ' lines along Fig. 3；
Fig. 6 is the part plan structural representation of another display panel provided in an embodiment of the present invention；
Fig. 7 is the cross-sectional view of the MM ' lines along Fig. 6；
Fig. 8 is the part plan structural representation of another display panel provided in an embodiment of the present invention；
Fig. 9 is the cross-sectional view of the NN ' lines along Fig. 8；
Figure 10 is the planar structure schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 11 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Incorporated by reference to the part plan for reference to figure 3, Fig. 4 and Fig. 5, Fig. 3 being a kind of display panel provided in an embodiment of the present invention
Structural representation, Fig. 4 are the cross-sectional views of the YY ' lines along Fig. 3, and Fig. 5 is the cross-section structure signal of the ZZ ' lines along Fig. 3
Figure.
The embodiments of the invention provide a kind of display panel, including：Stack the first film layer 10 set, the second film layer 20；
First film layer 10 is the first film layer upper surface 11 close to a side surface of the second film layer 20, and the second film layer 20 deviates from the first film layer 10
A side surface be the second film layer upper surface 21；Stepped region ST；The part of second film layer 20 covers the first film layer 10 and exposes portion
The first film layer upper surface 11 is divided to form first step structure T1；First step structure T1 surface is included in the film layer of part second
Surface 21, the section 22 of the film layer of part second, part the first film layer upper surface 11；Wherein, the connection of section 22 the of the second film layer
Two film layer upper surfaces 21 and the first film layer upper surface 11；A plurality of signal lead 40；In the ST of stepped region, a plurality of signal lead 40 is set
Put on first step structure T1 surface；In the ST of stepped region, at least two the are included between two adjacent bars cablings 40
One cut-off portion 51, the first cut-off portion 51 are connected with the section 22 of the second film layer,；Signal lead along on the first film layer upper surface 11
40 bearing of trend, the length L51 at least two first cut-off portions 51 and the length in other the first cut-off portions differ.
In the display panel that the present embodiment provides, display panel has the function of display image information；Display panel can be with
Including viewing area and non-display area, viewing area includes multiple pixels, and non-display area includes the structures such as signal lead, electronic component.
Display panel includes stacking the first film layer 10 set, the second film layer 20, and the first film layer 10, the second film layer 20 can be arranged on aobvious
Show in area, can either be arranged in non-display area or can be extended to from viewing area in non-display area, the embodiment of the present invention
It is not specifically limited for the position of the first film layer 10, the second film layer 20.
The display panel that Fig. 3, Fig. 4 and Fig. 5 are provided includes stepped region ST, and stepped region ST can be with including first step structure T1
Understand, stepped region ST particular location is determined by the position of the first film layer 10, the second film layer 20；When the first film layer 10,
When two film layers 20 are extended in non-display area from viewing area, stepped region ST can be set in the display area, can also be arranged on non-
In viewing area, or stepped region ST can be extended in non-display area from viewing area.
The display panel that the present embodiment provides also includes a plurality of signal lead 40, and signal lead 40 is used for transmitting telecommunication number.
In Fig. 3, only by the quantity of signal lead 40 be 3 exemplified by illustrate, it is to be understood that the quantity of signal lead 40 according to
The concrete condition of display panel is configured.In the ST of stepped region, a plurality of signal lead 40 is arranged on first step structure T1's
Surface.In other words, signal wire 40 extend at least across the second film layer upper surface 21, the second film layer the film layer of section 22 and first on
Surface 11.
In the display panel that the present embodiment provides, at least two the are provided with also between two adjacent bars cablings 40
One cut-off portion 51.Wherein, the first cut-off portion 51 is connected with the section 22 of the second film layer.First cut-off portion 51 has isolation adjacent
The function of two bars cablings 40.During the display panel that manufacture the present embodiment provides, in first film layer that completes
10th, the second film layer 20, and after forming stepped region ST, make signal lead 40.Wherein, the detailed process of signal lead 40 is made
Including：First, the body structure surface one layer signal cabling material layer of formation formed, letter are stacked in the first film layer 10, the second film layer 20
Number cabling material layer covering first step structure T1 surface.Then, one layer of photoresist is coated in signal lead material surface,
Photoresist is patterned using mask plate, photoresist is formed pattern corresponding to signal lead；Due in the ST of stepped region, phase
The first cut-off portion 51 is provided between two adjacent bars cablings 40, the first cut-off portion 51 is connected with the section 22 of the second film layer,
The structure at first step structure T1 interior turning T11 is destroyed, between making two adjacent bars cablings 40, the photoetching of residual
Glue can not form the strip of straightway shape；Specifically, away from the side in the section 22 of the second film layer in the first cut-off portion 51
Surface is the first cut-off portion front end face 511, and the photoresist of residual can not get around the first cut-off in the opening position in the first cut-off portion 51
Portion 51, fracture, discontinuous shape are especially easily formed at the first cut-off portion front end face 511, therefore, adjacent two letters
Between number cabling 40, at first step structure T1 interior turning T11, the photoresist of residual can not form continuous strip knot
Structure.After with wet etching or dry etching, the segment signal line material layer being covered by photoresist is retained, not by light
The segment signal line material layer of photoresist covering is removed.
Further, the length in the first cut-off portion 51 is not identical.It is understood that the first cut-off portion 51
Effect is to prevent from remaining photoresist at interior turning T11, causes adjacent two signal lines short circuit, although being provided with the first cut-off portion
51, but there is photoresist certain probability to bypass the first cut-off portion 51, so that adjacent signals line still short circuit, thus can be with
Reduce signal wire short circuit probability by way of increasing the quantity of the first cut-off portion 51, but between adjacent two signal line away from
From often very little, when setting the distance between multiple first cut-off portions 51, adjacent first cut-off portion 51 very little, if the first cut-off
The length in portion 51 is identical, and the situation that photoresist connects into line, therefore, this hair easily occur for the front end face 511 in the first cut-off portion
The length at least two first cut-off portions 51 is arranged to different by bright embodiment between adjacent two bars cabling 40, even if light
Photoresist bypasses the first shorter cut-off portion 51, it is also difficult to continues around longer first cut-off portion 51, signal lead is greatly lowered
40 short-circuit probability, and more first cut-off portion 51 need not be set.
By setting the first cut-off portion 51 of different length, the irregular saw of length is formed at the section 22 of the second film layer
The structure of dentation, the structure that can further destroy at first step structure T1 interior turning T11 so that two adjacent letters
Between number cabling 40, at first step structure T1 interior turning T11, the photoresist of residual can not further form continuous bar
Shape structure.Due between two adjacent bars cablings 40, at first step structure T1 interior turning T11, the photoetching of residual
Glue can not form continuous list structure, therefore the signal wire rod bed of material of corresponding residual can not electrically connect two adjacent bars and walk
Line 40, so as to solve in the prior art, the technical problem of short circuit easily occurs for two bars cablings 40.
It should be noted that in display panel shown in Fig. 3, Fig. 4 and Fig. 5, only using the quantity in the first cut-off portion 51 as two
Illustrated exemplified by individual.In other optional implementations, the quantity in the first cut-off portion 51 can be more than three, this implementation
Example is not specifically limited to the quantity in the first cut-off portion 51.
In display panel provided in an embodiment of the present invention, display panel includes stacking the first film layer set, the second film layer.
Display panel also includes stepped region, and stepped region includes first step structure.Second membrane layer portion covers the first film layer and exposed
Part the first film layer upper surface forms first step structure.A plurality of signal lead is arranged on the surface of first step structure.Its
In, at least two first cut-off portions are included between two adjacent bars cablings；First cut-off portion and the section of the second film layer connect
Connect.By setting cut-off portion in the section of the second film layer, can prevent during display panel is manufactured, because photoresist is residual
Two adjacent signal lead short circuits caused by staying；In addition, the length at least two second cut-off portions is incomplete same, can
Two adjacent signal lead short circuits caused by further to prevent photoetching glue residua, improve the yield of display panel.
In some optional embodiments, any embodiment of the present invention provide display panel on the basis of, first every
Disconnected portion is identical with the material of the second film layer；First cut-off portion is integrally formed with the second film layer in same manufacture craft.Specifically,
It refer to Fig. 6 and Fig. 7, Fig. 6 is the part plan structural representation of another display panel provided in an embodiment of the present invention, Fig. 7
It is the cross-sectional view of the MM ' lines along Fig. 6.Fig. 6 has continued to use Fig. 3 reference.Display panel shown in Fig. 6 and Fig. 7
In, the first cut-off portion 51 and the second film layer 20 are integrally formed using identical material, in same manufacture craft.For example, making
During making display panel, after the first film layer 10 is formed, sequentially formed on the surface of the first film layer 10 second film material layer,
Photoresist, by setting the pattern of mask plate, using mask plate to photoresist patterned, then carved with wet etching or dry method
After erosion, the first cut-off portion 51 and the second film layer 20 are obtained.In Fig. 7, the relative position in the section 22 of the second film layer is illustrated with dotted line
Put.In the display panel that the present embodiment provides, the first cut-off portion 51 and the second film layer 20 use identical material, in same making
It is integrally formed in technique, the manufacturing process of display panel can be simplified, improves the manufacture efficiency of display panel.
Optionally, please continue to refer to Fig. 6 and Fig. 7, the height H20 of the height H51 in the first cut-off portion 51 and the second film layer 20
It is identical.Optionally, the quantity in the first cut-off portion 51 is multiple that the quantity that Fig. 6 illustrates the first cut-off portion 51 is three embodiment party
Formula.By setting multiple first cut-off portions 51, jagged structure is formed at the section 22 of the second film layer, can be further
The structure destroyed at first step structure T1 interior turning T11 so that between two adjacent bars cablings 40, in first step
At structure T1 interior turning T11, the photoresist of residual can not further form continuous list structure, so as to solve existing skill
In art, the technical problem of short circuit easily occurs for two bars cablings 40, improves the yield of display panel.
In some optional embodiments, please continue to refer to Fig. 6 and Fig. 7, the display panel that the present embodiment provides also includes
Third membrane layer 30；Third membrane layer 30 is arranged on the second film layer upper surface 21；Third membrane layer 30 deviates from the side table of the second film layer 20
Face is third membrane layer upper surface 31；In the ST of stepped region, the part of third membrane layer 30 covers the second film layer 20 and exposes part the
Two film layer upper surfaces 21 are to form second step structure T2；Second step structure T2 surface is included in the third membrane layer of part part
Surface 31, the section 32 of part third membrane layer, part the first film layer upper surface 11；Wherein, the section connection of the third membrane layer
The third membrane layer upper surface and the second film layer upper surface；Wherein, the section 32 of third membrane layer connects third membrane layer upper table
The film layer upper surface 21 of face 31 and second；In the ST of stepped region, a plurality of signal lead 40 is arranged on second step structure T2 surface；
Include at least two second cut-off portions 52, the second cut-off portion 52 and the section of third membrane layer between two adjacent bars cablings 40
32 connections；Along the bearing of trend of the signal lead 40 on the second film layer upper surface 21, the length at least two second cut-off portions 52
L52 is incomplete same.It is understood that the function and operation principle in the second cut-off portion 52 are similar with the first cut-off portion 51, the
Two cut-off portions 52 destroy the structure at second step structure T2 interior turning T21 so that two adjacent bars cablings 40 it
Between, at second step structure T2 interior turning T21, the photoresist of residual can not form continuous list structure, so as to solve
In the prior art, the technical problem of short circuit easily occurs for two bars cablings 40, improves the yield of display panel.The present embodiment
In the display panel of offer, by setting at least two second cut-off portions 52, zigzag is formed at the section 32 of third membrane layer
Structure, the structure that can further destroy at second step structure T2 interior turning T21 so that two adjacent bars are walked
Between line 40, at second step structure T2 interior turning T21, the photoresist of residual can not further form continuous strip knot
Structure, so as to solve in the prior art, the technical problem of short circuit easily occurs for two bars cablings 40, improves the good of display panel
Rate.Optionally, the quantity in the second cut-off portion 52 is multiple that the quantity that Fig. 6 illustrates the second cut-off portion 52 is three embodiments.
In some optional embodiments, any embodiment of the present invention provide display panel on the basis of, second every
Disconnected portion is identical with the material of third membrane layer；Second cut-off portion is integrally formed with third membrane layer in same manufacture craft.Continuing with
With reference to figure 6 and Fig. 7, the second cut-off portion 52 is integrally formed with the identical material of third membrane layer 30, in same manufacture craft.Example
Such as, during display panel is manufactured, after the first film layer 10 and the second film layer 20 is formed, on the surface of the second film layer 20 successively
Third membrane layer material layer, photoresist are formed, by setting the pattern of mask plate, using mask plate to photoresist patterned, then
After wet etching or dry etching, the second cut-off portion 52 and third membrane layer 30 are obtained.In Fig. 7, the 3rd is illustrated with dotted line
The relative position in the section 32 of film layer.In the display panel that the present embodiment provides, the second cut-off portion 52 and third membrane layer 30 use
Identical material, it is integrally formed in same manufacture craft, the manufacturing process of display panel can be simplified, improve display panel
Manufacture efficiency.Optionally, please continue to refer to Fig. 6 and Fig. 7, the height H52 in the second cut-off portion 52 and the height H30 of third membrane layer 30
It is identical.
In some optional embodiments, Fig. 8 and Fig. 9 are refer to, Fig. 8 is another display provided in an embodiment of the present invention
The part plan structural representation of panel, Fig. 9 are the cross-sectional views of the NN ' lines along Fig. 8.Display shown in Fig. 8 and Fig. 9
In panel, at least one second cut-off portion 52 includes lengthening the second cut-off portion 521, lengthens the second cut-off portion 521 from the second film
Layer upper surface 21 extends to the film layer upper surface 11 of section 22 and first of the second film layer.In Fig. 9, third membrane layer is illustrated with dotted line
Section 32 relative position.In the display panel that the present embodiment provides, there is provided the second cut-off portion 521 that lengthens, and lengthens second
Cut-off portion 521 extends past the second film layer upper surface 21, the section 22 of the second film layer, the first film layer upper surface 11 successively, therefore
The knot at the interior turning T21 of the structure and second step structure T2 at first step structure T1 interior turning T11 is destroyed simultaneously
Structure；Also, the first film layer upper surface 11 is extended to due to lengthening the second cut-off portion 521, therefore, first step structure T1's
At interior turning T11, when the first cut-off portion 51, which does not separate two adjacent signal wires effectively, walks 40, the second cut-off portion is lengthened
521 can further destroy continuous structure of the photoresist of residual at the section 22 of the second film layer so that the photoetching of residual
Glue can not further form continuous list structure, and so as to solve in the prior art, two bars cablings 40 easily occur short
The technical problem on road, improve the yield of display panel.Optionally, please continue to refer to Fig. 8 and Fig. 9, adjacent two bars cabling 40
Between include at least one second and lengthen cut-off portion 521 and at least two first cut-off portions 51；The second cut-off portion 521 is lengthened to set
Between two adjacent the first cut-off portions 51.Optionally, please continue to refer to Fig. 8 and Fig. 9, along the first film layer upper surface 11
The bearing of trend of signal lead 40, the length L521 in the second cut-off of lengthening portion 521 on the first film layer upper surface 11 is 15-20 μ
m.Optionally, along the bearing of trend of the signal lead 40 on the first film layer upper surface 11, the lengthening on the first film layer upper surface 11
The length L521 in the second cut-off portion 521 is a, and the length L52 in the first cut-off portion 51 adjacent with lengthening the second cut-off portion 521 is b,
Wherein, b-a >=5 μm.Below, illustrated by the first adjacent cut-off portion 51 and exemplified by lengthening the second cut-off portion 521.Wherein,
The side surface in section 22 in first cut-off portion 51 away from the second film layer be the first cut-off portion front end face 511, lengthening second every
The side surface for deviating from the section 22 of the second film layer in disconnected portion 521 is the second cut-off portion front end face 5211 of lengthening.If lengthen the
The difference of the length in two cut-off portions 521 and the first adjacent cut-off portion 51 is too small, and photoresist is easily in the first cut-off portion front end face
511 and lengthen and linked together at the second cut-off portion front end face 5211, around the first cut-off portion 51 and lengthen the second cut-off portion 521
Continuous pattern is formed, can not effectively be disconnected.The second cut-off portion 521 and the first adjacent cut-off portion 51 are lengthened by setting
Length difference, continuous structure of the photoresist of residual at the section 22 of the second film layer can be effectively destroyed, improve display surface
The reliability of plate.Optionally, the thickness of third membrane layer 30 is less than the second film layer 20, now, relative to second step structure T2's
At interior turning T21, residual photoresist is easier at first step structure T1 interior turning T11, therefore, the is lengthened by setting
Two cut-off portions 521, it can effectively prevent the adjacent short circuit of two bars cabling 40.
Optionally, please continue to refer to Fig. 8 and Fig. 9, between two adjacent bars cablings 40, the first cut-off portion 51 and second
Cut-off portion 52 is arranged alternately.Specifically, because the first cut-off portion 51 from the second cut-off portion 52 is separately positioned on different film layers,
One cut-off portion 51 is arranged alternately with the second cut-off portion 52 to be referred to, along signal lead 40 in the extension side of third membrane layer upper surface 31
To y, the straight line where the first cut-off portion 51 is arranged alternately with the straight line where the second cut-off portion 52.Optionally, adjacent two
Between signal lead 40, the distance between the first adjacent cut-off portion 51 and the second cut-off portion 52 are d1, d1 >=2.5 μm.This reality
In the display panel for applying example offer, the minimum range between adjacent the first cut-off portion 51 and the second cut-off portion 52 is 2.5 μm.Under
Face, illustrated by the first adjacent cut-off portion 51 and exemplified by lengthening the second cut-off portion 521.Wherein, carried on the back in the first cut-off portion 51
A side surface from the section 22 of the second film layer is the first cut-off portion front end face 511, lengthens and deviates from second in the second cut-off portion 521
One side surface in the section 22 of film layer is the second cut-off portion front end face 5211 of lengthening.If adjacent first cut-off portion 51 and lengthening the
The distance between two cut-off portions 521 are too small, and photoresist easily in the first cut-off portion front end face 511 and lengthens the second cut-off portion front end
Linked together at face 5211, continuous pattern is formed around the first cut-off portion 51 and the second cut-off portion 521 of lengthening, can not be effective
Disconnection.It is 2.5 μm by setting the minimum range between adjacent the first cut-off portion 51 and the second cut-off portion 52, can be effective
The opening position in the first adjacent cut-off portion 51 and the second cut-off portion 52 destroy photoresist continuous structure.
Optionally, on the basis of the display panel that any embodiment of the present invention provides, along the first film layer upper surface 11
Signal lead 40 bearing of trend, the length L51 in the first cut-off portion 51 of the first film layer upper surface 11 is 5-10 μm.It is optional
, along the bearing of trend of the signal lead 40 on the second film layer upper surface 21, at least one second cut-off portion 52, except lengthening the
Outside two cut-off portions 521, length L52 of remaining second cut-off portion 52 on the second film layer upper surface 21 is 5-10 μm.When first every
When the length in disconnected cut-off portion 52 of portion 51 or second is less than 5 μm, photoresist can not be effectively broken, and can still get around the first cut-off
Cut-off portion 52 of portion 51 or second forms continuous pattern.The length L51 in the first cut-off portion 51 and the length in the second cut-off portion 52
L52 is no more than 10 μm, in order to avoid take the excessive area of display panel.By the length L51 and for setting the first cut-off portion 51
The length L52 in two cut-off portions 52 can be destroyed effectively at first step structure T1 interior turning T11 in the range of 5-10 μm
Structure, and the structure at second step structure T2 interior turning T21 so that the photoresist of residual can not form continuous bar
Shape structure, so as to solve in the prior art, the technical problem of short circuit easily occurs for two bars cablings 40, improves display panel
Yield.
It is understood that the present invention merely exemplary length for illustrating the first cut-off portion 51 and the second cut-off portion 52 herein
Degree, relative position relation.The length in the first cut-off portion 51 and the second cut-off portion 52, relative position relation can be according to the chis of panel
The specific performance such as very little, ledge structure size is configured.
In some optional embodiments, Figure 10 is refer to, Figure 10 is another display surface provided in an embodiment of the present invention
The planar structure schematic diagram of plate.On the basis of the display panel that any embodiment of the present invention provides, display panel includes display
The area AA and non-display area BB on periphery；Stepped region ST is arranged on non-display area BB；A plurality of signal lead 40 extends from viewing area AA
To stepped region ST.In the display panel that the present embodiment provides, in order that non-display area BB is more frivolous, thus by non-display area BB
In part film layer structure remove, so as to form stepped region ST in non-display area BB.
In some optional embodiments, on the basis of the display panel that any embodiment of the present invention provides, the first film
Layer is flexible substrate layer, for example, the material of the first film layer can select resin material, such as polyimides, display panel other
Film layer structure sequentially forms in flexible substrate layer, so that display panel is flexible, flexible.Second film layer is included extremely
Few one layer of inorganic layer, for example, the second film layer can include the inorganic layer that multiple-level stack is set, the material of inorganic layer can include nitrogen
SiClx or silica, multilayer inorganic layer can play a part of insulation or planarization in display panel.Third membrane layer
Including at least one layer of inorganic layer, for example, third membrane layer can include the inorganic layer that multiple-level stack is set, the material of inorganic layer can be with
Including silicon nitride or silica.Optionally, when when stepped region, ST is arranged on non-display area BB, in order that display panel is non-aobvious
Show that area BB is more prone to bend, generally remove the part inorganic layer in the ST of stepped region, so as to form stepped region ST.
In some optional embodiments, on the basis of the display panel that any embodiment of the present invention provides, display surface
Plate includes multiple Organic Light Emitting Diodes (Organic Light-Emitting Diode, abbreviation OLED).Optionally, Duo Geyou
Machine light emitting diode is arranged in the viewing area of display panel.The display panel that the present embodiment provides is Organic Light Emitting Diode
Display panel, there is self-luminous, wide viewing angle, high-contrast, power consumption is relatively low, reaction speed is fast.
Present invention also offers a kind of display device, including the display panel that any of the above-described embodiment of the present invention provides.Please
With reference to figure 11, Figure 11 is a kind of schematic diagram of display device provided in an embodiment of the present invention.The display device 100 that Figure 11 is provided is wrapped
Include the display panel 200 that any of the above-described embodiment of the present invention provides.Figure 11 embodiments are only by taking mobile phone as an example, to display device 100
Illustrate, it is to be understood that display device provided in an embodiment of the present invention, can be computer, TV, display device for mounting on vehicle
There is the display device of display function Deng other, the present invention is not specifically limited to this.Display dress provided in an embodiment of the present invention
Put, there is the beneficial effect of display panel provided in an embodiment of the present invention, specifically may be referred to the various embodiments described above for display
Panel illustrates, and the present embodiment will not be repeated here.
By above-described embodiment, display panel and display device that the various embodiments described above of the present invention provide, at least up to
Following beneficial effect is arrived：
In display panel provided by the invention and display device, display panel includes stacking the first film layer set, second
Film layer and third membrane layer.Display panel also includes stepped region, and stepped region includes ledge structure, and ledge structure includes first step knot
Structure and second step structure.Second membrane layer portion, which covers the first film layer and exposes part the first film layer upper surface, forms first
Ledge structure, third membrane layer part, which covers the second film layer and exposes part the second film layer upper surface, forms second step knot
Structure.A plurality of signal lead is arranged on the surface of ledge structure.Wherein, at least one the is included between two adjacent bars cablings
One cut-off portion and at least one second cut-off portion；First cut-off portion is connected with the section of the second film layer, the second cut-off portion and the 3rd
The section connection of film layer.By setting cut-off portion respectively in the section in the section of the second film layer and third membrane layer, can prevent
During manufacturing display panel, due to two signal lead short circuits adjacent caused by photoetching glue residua, display panel is improved
Yield.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (16)
- A kind of 1. display panel, it is characterised in that including：Stack the first film layer set, the second film layer；First film layer is first close to a side surface of second film layer Film layer upper surface, second film layer are the second film layer upper surface away from a side surface of first film layer；Stepped region；Second membrane layer portion covers first film layer and exposes part the first film layer upper surface with shape Into the first step structure；The surface of the first step structure is including described in part the second film layer upper surface, part Section, part the first film layer upper surface of second film layer；Wherein, the section of second film layer connects second film layer Upper surface and the first film layer upper surface；A plurality of signal lead；In the stepped region, a plurality of signal lead is arranged on the surface of the first step structure；In the stepped region, at least two first cut-off portions, first cut-off are included between two adjacent bars cablings Portion is connected with the section of second film layer；Along the bearing of trend of the signal lead on the first film layer upper surface, institute The length for stating at least two first cut-off portions is incomplete same.
- 2. display panel according to claim 1, it is characterised in thatThe first cut-off portion is identical with the material of second film layer；The first cut-off portion is with second film layer same It is integrally formed in manufacture craft.
- 3. display panel according to claim 1, it is characterised in thatAlso include third membrane layer；The third membrane layer is arranged on the second film layer upper surface；The third membrane layer is away from described One side surface of the second film layer is third membrane layer upper surface；In the stepped region, the third membrane layer part covers second film layer and exposed in second film layer of part Surface is to form second step structure；The surface of the second step structure includes the part third membrane layer upper surface, part Section, part the first film layer upper surface of the third membrane layer；Wherein, the section connection the described 3rd of the third membrane layer Film layer upper surface and the second film layer upper surface；In the stepped region, a plurality of signal lead is arranged on the surface of the second step structure；Include at least two second cut-off portions, the second cut-off portion and the third membrane layer between two adjacent bars cablings Section connection；Along the bearing of trend of the signal lead on the second film layer upper surface, the length at least two second cut-off portion Spend incomplete same.
- 4. display panel according to claim 3, it is characterised in thatThe second cut-off portion is identical with the material of the third membrane layer；The second cut-off portion is with the third membrane layer same It is integrally formed in manufacture craft.
- 5. display panel according to claim 3, it is characterised in thatAt least one second cut-off portion includes lengthening the second cut-off portion, and the second cut-off portion that lengthens is from second film Layer upper surface extends to the section of second film layer and the first film layer upper surface.
- 6. display panel according to claim 5, it is characterised in thatIt is described on the first film layer upper surface along the bearing of trend of the signal lead on the first film layer upper surface The length for lengthening the second cut-off portion is 15-20 μm.
- 7. display panel according to claim 5, it is characterised in thatAlong the bearing of trend of the signal lead on the second film layer upper surface, at least one second cut-off portion, In addition to the second cut-off portion of the lengthening, remaining length of the second cut-off portion on the second film layer upper surface is 5-10 μ m。
- 8. display panel according to claim 5, it is characterised in thatInclude at least one described second between the adjacent two bars cabling and lengthen cut-off portion and at least two described first Cut-off portion；The second cut-off portion of the lengthening is arranged between the first cut-off portion of adjacent two.
- 9. display panel according to claim 8, it is characterised in thatIt is described on the first film layer upper surface along the bearing of trend of the signal lead on the first film layer upper surface The length for lengthening the second cut-off portion is a, and the length in the first cut-off portion adjacent with the second cut-off portion of the lengthening is b, its In, b-a >=5 μm.
- 10. display panel according to claim 3, it is characterised in thatBetween two adjacent bars cablings, the first cut-off portion is arranged alternately with the second cut-off portion.
- 11. display panel according to claim 10, it is characterised in thatBetween two adjacent bars cablings, the distance between adjacent the first cut-off portion and the second cut-off portion are D1, d1 >=2.5 μm.
- 12. display panel according to claim 3, it is characterised in thatFirst film layer is flexible substrate layer；Second film layer includes at least one layer of inorganic layer；The third membrane layer includes at least one layer of inorganic layer.
- 13. display panel according to claim 1, it is characterised in thatIt is described on the first film layer upper surface along the bearing of trend of the signal lead on the first film layer upper surface The length in the first cut-off portion is 5-10 μm.
- 14. display panel according to claim 1, it is characterised in thatThe display panel includes the non-display area on viewing area and periphery；The stepped region is arranged on the non-display area；The a plurality of signal lead extends to the stepped region from the viewing area.
- 15. display panel according to claim 1, it is characterised in thatThe display panel includes multiple Organic Light Emitting Diodes.
- 16. a kind of display device, it is characterised in that including the display panel according to claim any one of 1-15.
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| CN201710758807.5A CN107507840B (en) | 2017-08-29 | 2017-08-29 | Display panel and display device |
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| CN201710758807.5A CN107507840B (en) | 2017-08-29 | 2017-08-29 | Display panel and display device |
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| CN111180468A (en) * | 2020-01-06 | 2020-05-19 | 昆山国显光电有限公司 | Display panel, display device and preparation method of display panel |
| CN111445788A (en) * | 2020-04-27 | 2020-07-24 | Tcl华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN112599701A (en) * | 2020-12-14 | 2021-04-02 | 合肥维信诺科技有限公司 | Display substrate |
| CN115528046A (en) * | 2022-08-16 | 2022-12-27 | 京东方科技集团股份有限公司 | Display substrate, display device and preparation method of display substrate |
| WO2023184374A1 (en) * | 2022-03-31 | 2023-10-05 | 京东方科技集团股份有限公司 | Display panel, array substrate, and manufacturing method therefor |
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Effective date of registration: 20211022 Address after: No.8, liufangyuanheng Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430074 Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 201201 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |