CN108922877A - Display panel - Google Patents
Display panel Download PDFInfo
- Publication number
- CN108922877A CN108922877A CN201810700808.9A CN201810700808A CN108922877A CN 108922877 A CN108922877 A CN 108922877A CN 201810700808 A CN201810700808 A CN 201810700808A CN 108922877 A CN108922877 A CN 108922877A
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- section
- metal layer
- display panel
- cabling
- bending
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/49—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions wire-like arrangements or pins or rods
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of display panel, includes at least a bending region；And at least one be set to bending region signal lead；Signal lead includes being electrically connected the second metal layer of the first metal layer；The first metal layer includes two second sections of the first section of the first section and connection, on same flexure direction, the first section relative to two sections more easy fracture；Second metal layer includes cabling section, and the both ends of cabling section are electrically connected two the second sections.It has the beneficial effect that：Display panel provided by the invention, the signal lead surface in bending region is provided with the bending stress release section of easy fracture, bending stress discharges the signal lead at section both ends by different layer metal conduction, can avoid the technical issues of signal can not transmit after signal lead is broken.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display panels.
Background technique
Display panel, such as Organic Light Emitting Diode (Organic Light-Emitting Diode, abbreviation：OLED) because of it
Possess huge development potentiality in the direction of solid-state lighting and FPD and obtains the very big concern of academia and industrial circle.
Organic Light Emitting Diode (OLED) plate can do lighter and thinner, thus flexible display technologies will be following development trend.
Common substrate substrate is mostly polyimides (Polyimide, abbreviation：The flexible substrates such as PI), thin film transistor (TFT) is in flexible substrate
On by the control of signal, realize the luminous regulation to Organic Light Emitting Diode (OLED) device.
However, largely the metal routing of transmitting signal can be integrated at the lower edge of display panel, in rear end module group procedure
The middle back side for carrying out flexure operation folding and being fixed to display panel, can bring a more serious risk, i.e., when long in this way
Between the stress that generates in bending process so that the case where metal routing in the region is often broken, to cause letter
Number lost contact.
In conclusion Organic Light Emitting Diode (OLED) display panel of the prior art, the metal positioned at bending region is walked
For line because keeping bending state for a long time, meeting affected by force leads to risk increase of breaking, and then reduces Organic Light Emitting Diode
(OLED) service life of display panel.
Summary of the invention
The present invention provides a kind of display panel, and the signal lead for being bent region is provided with stress relief zone, stress relief zone
The signal lead of both ends connection is by different layer metal conduction, to solve the display panel such as Organic Light Emitting Diode of the prior art
(OLED) the technical issues of display panel, metal routing keeps bending state easy fracture for a long time.
To solve the above problems, technical solution provided by the invention is as follows：
The present invention provides a kind of display panel, and the display panel includes：
Display component is equipped with a bending region；And
An at least signal lead is set to the bending region；The signal lead includes the first metal layer and electrically connects
Connect the second metal layer of the first metal layer；
Wherein, the first metal layer includes at least one first section, and is electrically connected first section at least
Two second sections；When the bending region is in bending state, the strain of first section, greater than second section
Strain, so that first section is easier stress influence by bending relative to second section and is broken.
The second metal layer includes an at least cabling section, and one end of the cabling section is electrically connected at described in one
Second section, the other end of the cabling section are electrically connected at another second section.
According to one preferred embodiment of the present invention, first section of the first metal layer is formed with second section
Continuous arrangement, and first section is arranged alternately with second section.
According to one preferred embodiment of the present invention, the cabling section of the second metal layer includes at least two sub- cabling areas
Section, the sub- cabling section are to be spaced apart.
According to one preferred embodiment of the present invention, each sub- cabling section is electrically connected two adjacent secondth area
Section.
According to one preferred embodiment of the present invention, two second sections that each sub- cabling section is electrically connected it
Between, it is spaced at least one described second section.
According to one preferred embodiment of the present invention, the width of the first section of the first metal layer is less than secondth area
The width of section.
According to one preferred embodiment of the present invention, the thicknesses of layers of the first section of the first metal layer is less than described the
The thicknesses of layers of two sections.
According to one preferred embodiment of the present invention, insulation is formed between the first metal layer and the second metal layer
Layer, the insulating layer are equipped with via hole, and each sub- cabling section is connected to corresponding secondth area by the via hole
Section.
According to one preferred embodiment of the present invention, the first metal layer is titanium coating, aluminum metal layer and titanium coating
Group metal layer, the second metal layer is the single metal layer of titanium or molybdenum material.
According to one preferred embodiment of the present invention, when the first metal layer is in the bending state, at least partly institute
State the disconnection of the first section；The strain for first section not disconnected, greater than the strain of second section.
Beneficial effects of the present invention are：The present invention provides a kind of display panel, is bent the signal lead surface setting in region
There is the bending stress release section of easy fracture, the signal lead that bending stress discharges section both ends passes through different layer metal conduction, can
The technical issues of signal can not transmit after avoiding signal lead from being broken.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the sectional view of display panel provided by the invention.
Fig. 2 is one diagrammatic cross-section of bending region of embodiment one provided by the invention；
Fig. 3 is another diagrammatic cross-section in bending region of embodiment one provided by the invention；
Fig. 4 is the yet another diagrammatic cross-section in bending region of embodiment one provided by the invention.
Fig. 5 is the bending region diagrammatic cross-section of embodiment two provided by the invention.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The present invention is directed to the display panel of the prior art, and the signal lead positioned at bending region is easily broken in the bent state
Line, and then the technical issues of signal can not be transmitted, the present embodiment is able to solve the defect.
As shown in Figure 1, display panel provided by the invention, the letter including flexible substrate 103 and in flexible substrate 103
Number cabling.In this example it is shown that panel can be OLED (Organic Light-Emitting Diode, organic light emission
Diode) display panel or QLED (Quantum Dot Light Emitting Diodes, light emitting diode with quantum dots) be aobvious
Show panel or Micro LED (microdiode) display panel.
The flexible substrate 103 includes the display area corresponding to the display panel and is used to that pixel array 104 to be arranged
Functional area 101, and the routing region 105 of the non-display area corresponding to the display panel, the routing region 105
Interior definition has bending region 102 and the binding region 106 positioned at bending 102 end of region.
The signal lead, which includes at least, is located at the first part being bent on region 102, and the one of the signal lead
End extends to the connection pixel array 104 in the functional area 101, and the opposite other end of the signal lead extends
In to the binding region 106, control circuit board is connected.
The first part of the signal lead includes the first metal layer and the second gold medal for being electrically connected the first metal layer
Belong to layer；The second metal layer includes at least one first section, and second section at connection first section both ends.
First section is that the bending stress of the signal lead discharges area, the first section of the first metal layer
Width, less than the width of second section, also, the thicknesses of layers of first section, less than the film of second section
Thickness degree, so that deformable amount of first section along a bending direction, is greater than second section along the bending
The deformable amount in direction.
When the bending region 102 bending, since the film layer width of first section is smaller, and thicknesses of layers is equal
Thin, so that the bending stress of the first metal layer concentrates on first section, the strain of first section is larger, described
First section relatively easy fracture, and the strain that second section is subject to is smaller, it is impacted smaller.
Easy fracture position due to that can predict the signal lead is first section, it will be connected to institute in advance
Second section for stating the first section both ends is bridged by the second metal layer, that is, when the signal lead is without fracture shape
When condition occurs, first section, the second section normal transmission signal are described disconnected after the fracture of first deformation area
Second section for splitting place both ends is connected by the second metal layer, and then keeps signal ground normal transmission.
When the first metal layer is in the bending state, at least partly described first section is disconnected；It does not disconnect
The strain of first section, greater than the strain of second section；First section can absorb more bending stress,
Reduce the bending stress of second section.
Embodiment one
As shown in Fig. 2, display panel provided by the invention includes：Base on the bending region 102 of flexible substrate 103
Bottom 201, the basal layer 201 are prepared using organic insulating material；The first metal layer is formed in 201 surface of basal layer,
The first metal layer is the superposition metal layer of titanium coating, Al aluminum metal layer and titanium coating；Insulating layer 202, is formed in
201 surface of basal layer, and the first metal layer is covered, the insulating layer 202 is prepared using organic insulating material；Second
Metal layer 203, is formed in 202 surface of insulating layer, and the second metal layer 203 is titanium metal material or Molybdenum metal materials industry
Single metal layer；Coating 204 is formed in 202 surface of insulating layer, and covers the second metal layer 203.
The basal layer 201, the insulating layer 202 and the coating 204 prepared using organic material has one
Fixed elasticity, during bending, organic insulator 202 can support metal layer avoid so that bending stress is evenly dispersed
Bending stress is concentrated at one and causes to be broken.
The first metal layer includes the first section 205, and 205 both ends of the first section are separately connected one second section
206, the width of first section 205 is less than the width of second section 206, the thicknesses of layers of first section 205
Less than the thicknesses of layers of second section 206, relatively described second section 206 of first section 205 forms bending stress
Release groove, when bending, the bending stress release groove is squeezed after-contraction, so that the strain of first section 205 is larger, it can
More bending stresses are absorbed, and then bending stress suffered by the signal lead is dispersed to first section 205, are subtracted
The bending stress of small second section 206 protects the integrality of second section 206；However, first section 205
Metal layer is relatively thin and narrower width, the bending stress that can be born is small, influences and is broken vulnerable to bending stress.
The second metal layer 203 includes an at least cabling section, and 202 surface of insulating layer is provided with described in connection
At least two via holes of line section, that is, the first via hole 207 and the second via hole 208,207 other end of the first via hole connect an institute
The second section 206 is stated, the other end of second via hole 208 connects another second section 206, so that two secondth area
Section 206 forms bridge joint, after first section 205 fracture, the second metal layer 203 can be used to realize two secondth area
The conducting of section 206.
As shown in figure 3, display panel provided by the invention includes：Base on the bending region 102 of flexible substrate 103
Bottom 301, the first metal layer for being formed in 301 surface of basal layer, the insulating layer for being formed in 301 surface of basal layer
302, it is formed in the second metal layer 303 on 302 surface of insulating layer and is formed in the covering on 302 surface of insulating layer
Layer 304.
The first metal layer includes the first section 305, and 305 both ends of the first section are separately connected one second section
306, the width of first section 305 is less than the width of second section 306, the thicknesses of layers of first section 305
Less than the thicknesses of layers of second section 306.
The second metal layer 303 includes a cabling section, first section 305 of the first metal layer and described
Second section 306 is along the bending direction continuous arrangement, and first section 305 and second section 306 alternating point
Cloth.
Cabling section both ends are connected by the first via hole 307 and second via hole 308 that are set on insulating layer 302
It is connected to second section 306 and another second section 306；Wherein, corresponding with first via hole 307 described
Between two sections 306 and second section 306 corresponding with second via hole 308, it is spaced at least two firstth area
Section 305.
As shown in figure 4, display panel provided by the invention includes：Base on the bending region 102 of flexible substrate 103
Bottom 401, the first metal layer for being formed in 401 surface of basal layer, the insulating layer for being formed in 401 surface of basal layer
402, it is formed in the second metal layer on 402 surface of insulating layer and is formed in the coating on 402 surface of insulating layer
404。
The first metal layer includes the first section 405, and 405 both ends of the first section are separately connected one second section
406, the width of first section 405 is less than the width of second section 406, the thicknesses of layers of first section 405
Less than the thicknesses of layers of second section 406.
The second metal layer includes multiple sub- cabling sections 403, and each sub- 403 both ends of cabling section are by being set to
The first via hole 407 and the second via hole 408 on insulating layer 402, are connected to second section 406 and another secondth area
After first section 405 fracture, second gold medal can be used so that two second sections 406 form bridge joint in section 406
Belong to the conducting that layer realizes two second sections 406.
Further, multiple sub- cabling sections 403 are that the bending direction along the bending region is spaced apart；For example,
The sub- cabling section 403 is located at the side of first section 405；For another example, it is formed between the adjacent sub- cabling section 403
Interval region, the interval region are located at the side of first section 405.
First section 405 and second section 406 of the first metal layer are continuous along the bending direction
Arrangement, and first section 405 and second section 406 are alternately distributed.
Embodiment two
As described in Figure 5, display panel provided by the invention includes：Substrate on the bending region of flexible substrate 103
Layer 501, the basal layer 501 are prepared using organic insulating material；The first metal layer is formed in 501 surface of basal layer, institute
State the superposition metal layer that the first metal layer is titanium coating, aluminum metal layer and titanium coating；Second metal layer 503, is formed in
The first metal layer surface, the second metal layer 503 are the single metal layer of titanium metal material or Molybdenum metal materials industry；Covering
Layer 504 is formed in 502 surface of insulating layer, and covers the second metal layer 503.
The first metal layer includes the first section 505, and 505 both ends of the first section are separately connected one second section
506, the width of first section 505 is less than the width of second section 506, the thicknesses of layers of first section 505
Less than the thicknesses of layers of second section 506.
The preparation method of the present embodiment includes：
S10 provides basal layer 501.
S20 forms the first metal layer on 501 surface of basal layer, and using photoetching process in the first metal layer
Surface forms bending stress release groove 510, and then forms first section 505, and connection 505 both ends of the first section
The second section 506.
S30 forms organic material layer 509 in the bending stress release groove 510.
S40 forms the second metal layer 503 in the layer on surface of metal.
The difference between this embodiment and the first embodiment lies in the second metal layer 503 is formed in the first metal layer
Surface, the second metal layer 503 and the first metal layer connection in electrical contact, to save the insulating layer 502 and in institute
State the processing procedure that the via hole is formed on insulating layer 502.
It has the beneficial effect that：The present invention provides a kind of display panel, and the signal lead surface for being bent region is provided with easy fracture
Bending stress discharge section, bending stress discharges the signal lead at section both ends by different layer metal conduction, can avoid signal
Walk the technical issues of signal after thread breakage can not transmit.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of display panel, which is characterized in that the display panel includes：
Flexible base board, including bending region；And
An at least signal lead is set on the bending region；The signal lead includes the first metal layer and electric connection
The second metal layer of the first metal layer；
Wherein, the first metal layer includes at least one first section, and is electrically connected at least the two the of first section
Two sections；When the bending region is in bending state, the strain of first section, greater than answering for second section
Become；
The second metal layer includes an at least cabling section, and one end of the cabling section is electrically connected at one described second
Section, the other end of the cabling section are electrically connected at another second section.
2. display panel according to claim 1, which is characterized in that first section of the first metal layer and institute
It states the second section and forms continuous arrangement, and first section is arranged alternately with second section.
3. display panel according to claim 1, which is characterized in that the cabling section of the second metal layer includes at least
Two sub- cabling sections, the sub- cabling section are to be spaced apart.
4. display panel according to claim 3, which is characterized in that it is adjacent that each sub- cabling section is electrically connected two
Second section.
5. display panel according to claim 3, which is characterized in that two of each sub- cabling section electric connection
Between second section, it is spaced at least one described second section.
6. display panel according to claim 1, which is characterized in that the film layer of the first section of the first metal layer is thick
Degree, less than the thicknesses of layers of second section.
7. display panel according to claim 1, which is characterized in that the width of the first section of the first metal layer,
Less than the width of second section.
8. display panel according to claim 1, which is characterized in that the first metal layer and the second metal layer it
Between be formed with insulating layer, the insulating layer is equipped with via hole, and each sub- cabling section is connected to correspondence by the via hole
Second section.
9. display panel according to claim 1, which is characterized in that the first metal layer is titanium coating, aluminum metal
The group metal layer of layer and titanium coating, the second metal layer are the single metal layer of titanium or Molybdenum metal materials industry.
10. display panel according to claim 1, which is characterized in that when the first metal layer is in the bending
When state, at least partly described first section is disconnected；The strain for first section not disconnected, greater than answering for second section
Become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700808.9A CN108922877A (en) | 2018-06-29 | 2018-06-29 | Display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700808.9A CN108922877A (en) | 2018-06-29 | 2018-06-29 | Display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108922877A true CN108922877A (en) | 2018-11-30 |
Family
ID=64422511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810700808.9A Pending CN108922877A (en) | 2018-06-29 | 2018-06-29 | Display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108922877A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124927A1 (en) * | 2018-12-18 | 2020-06-25 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and organic light emitting diode display device |
| CN111681553A (en) * | 2020-06-30 | 2020-09-18 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN111725249A (en) * | 2020-06-03 | 2020-09-29 | 錼创显示科技股份有限公司 | Flexible display panel with micro-assembly |
| CN111769080A (en) * | 2020-06-24 | 2020-10-13 | 武汉华星光电半导体显示技术有限公司 | Display panel |
| WO2021000457A1 (en) * | 2019-07-02 | 2021-01-07 | 武汉华星光电技术有限公司 | Display panel and fabrication method therefor |
| JP7506696B2 (en) | 2021-12-09 | 2024-06-26 | 深▲セン▼市▲華▼星光▲電▼半▲導▼体▲顕▼示技▲術▼有限公司 | Flexible Display Panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020124927A1 (en) * | 2018-12-18 | 2020-06-25 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and organic light emitting diode display device |
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| CN111725249A (en) * | 2020-06-03 | 2020-09-29 | 錼创显示科技股份有限公司 | Flexible display panel with micro-assembly |
| CN111725249B (en) * | 2020-06-03 | 2024-02-13 | 錼创显示科技股份有限公司 | Flexible micro-assembly display panel |
| CN111769080A (en) * | 2020-06-24 | 2020-10-13 | 武汉华星光电半导体显示技术有限公司 | Display panel |
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| CN111681553A (en) * | 2020-06-30 | 2020-09-18 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN111681553B (en) * | 2020-06-30 | 2022-02-25 | 云谷（固安）科技有限公司 | Display panel and display device |
| JP7506696B2 (en) | 2021-12-09 | 2024-06-26 | 深▲セン▼市▲華▼星光▲電▼半▲導▼体▲顕▼示技▲術▼有限公司 | Flexible Display Panel |
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Application publication date: 20181130 |
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