CN109725469A - Electrostatic protection structure and electrostatic protection method - Google Patents
Electrostatic protection structure and electrostatic protection method Download PDFInfo
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- CN109725469A CN109725469A CN201811589920.6A CN201811589920A CN109725469A CN 109725469 A CN109725469 A CN 109725469A CN 201811589920 A CN201811589920 A CN 201811589920A CN 109725469 A CN109725469 A CN 109725469A
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- electric discharge
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Abstract
The present invention relates to a kind of electrostatic protection structure and electrostatic protection methods, the electrostatic protection structure is arranged in array substrate, it include: several scan lines disposed in parallel, the end of several scan lines is connected by a metal wire, is provided with the first electric discharge part on the metal wire；Public electrode wire is provided with the second electric discharge part opposite with the first electric discharge part on the public electrode wire；Insulating layer between the metal wire and the public electrode wire is set.The present invention discharges electrostatic charge in fixed region, reduces since the probability of the effective display area domain circuit of display panel is accumulated on substrate and be wound to electrostatic charge, improves production yield.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of electrostatic protection structure and electrostatic protection method.
Background technique
In the manufacturing process of Thin Film Transistor-LCD (TFT-LCD), because the substrate of display is with glass
For main material, and glass is a megohmite insulant (its conductivity is only 10-14S/cm), in other words, static elimination speed
(Decay Rate) is comparable slow.When glass baseplate surface is because of the manufacturing step (such as: dry-etching) of consecutive and the fortune of substrate
During sending, the presence of many electrostatic charges will be accumulated on substrate surface, unless there are discharge channel appropriate, otherwise electrostatic charge meeting one
Directly rest on glass baseplate surface, and the circuit of display panel is the route largely formed by metal, if the electrostatic charge of accumulation
Release will wound circuit in display panel, and display panel is made to form the bad of unrepairable.In the bigger panel of display court
When the target of size strides forward, the electrostatic charge accumulated on substrate only can be more and more.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of electrostatic protection structure and electrostatic protection method, make electrostatic charge
It discharges, reduces since the effective display area domain circuit of display panel is accumulated on substrate and be wound to electrostatic charge in fixed region
Probability improves production yield.
A kind of electrostatic protection structure is arranged in array substrate, comprising:
The end of several scan lines disposed in parallel, several scan lines is connected by a metal wire, the gold
Belong to and is provided with the first electric discharge part on line；
Public electrode wire is provided with the second electric discharge part opposite with the first electric discharge part on the public electrode wire；
Insulating layer between the metal wire and the public electrode wire is set.
The metal wire is the first metal layer in one of the embodiments, and the public electrode wire is second metal layer,
The insulating layer is between the first metal layer and the second metal layer.
One end of the first electric discharge part is connect with the first metal layer in one of the embodiments, and described first
The other end of electric discharge part is connect with the insulating layer.
One end of the second electric discharge part is connect with the second metal layer in one of the embodiments, and described second
The other end of electric discharge part is connect with the insulating layer.
Often it is separated by two scan lines in one of the embodiments, the first electric discharge part and one is set
The second electric discharge part opposite with the first electric discharge part.
The first electric discharge part and the second electric discharge part are equipped with tip, first electric discharge in one of the embodiments,
The tip of part and the tip of the second electric discharge part are oppositely arranged.
Conceived based on foregoing invention, propose a kind of electrostatic protection structure, comprising:
The end of several scan lines disposed in parallel, several scan lines is connected by a metal wire, the gold
Belong to and is provided with the first electric discharge part on line；
Public electrode wire is provided with the second electric discharge part opposite with the first electric discharge part on the public electrode wire；
Insulating layer between the metal wire and the public electrode wire is set；
Wherein, the first electric discharge part and the second electric discharge part are equipped with tip, the tip of the first electric discharge part with it is described
The tip of second electric discharge part is oppositely arranged；
The metal wire is the first metal layer, and the public electrode wire is second metal layer, and the insulating layer is located at described
Between the first metal layer and the second metal layer；
It is described first electric discharge part one end connect with the first metal layer, it is described first discharge part the other end with it is described
Insulating layer connection；
It is described second electric discharge part one end connect with the second metal layer, it is described second discharge part the other end with it is described
Insulating layer connection；
Often it is separated by two scan lines, a pair of first electric discharge part of setting and the second electric discharge part.
Conceived based on foregoing invention, propose a kind of electrostatic protection method, comprising:
The end of several scan lines disposed in parallel is connected by a metal wire；
The first electric discharge part is provided on the metal wire；
The second electric discharge part opposite with the first electric discharge part is set on public electrode wire；
Insulating layer is set between the metal wire and the public electrode wire.
The electrostatic protection method in one of the embodiments, further include: disconnect the scan line and the metal wire
Between connection.
Tip is set on the first electric discharge part and the second electric discharge part respectively in one of the embodiments, and
Tip on the first electric discharge part is oppositely arranged with the tip on the second electric discharge part.
Above-mentioned electrostatic protection structure and electrostatic protection method, a large amount of electrostatic charges formed on public electrode wire and scan line
It is directed to fixed region, is discharged by the first electric discharge part and the second electric discharge part, due to the first electric discharge part and the second electric discharge
Part is oppositely arranged, and is provided between the public electrode wire that is connected of the first metal wire for being connected of electric discharge part and the second electric discharge part
Insulating layer, electrostatic charge are discharged in the first electric discharge part and the second opposite intermediate region of electric discharge part, can effectively reduce wound it is aobvious
The probability for showing the effective display area domain circuit of panel, improves production yield.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of electrostatic protection structure in one embodiment；
Fig. 2 is the flow chart of electrostatic protection method in one embodiment；
Fig. 3 is the structural schematic diagram of electrostatic protection structure in another embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
A kind of electrostatic protection structure, as shown in Figure 1, being arranged in array substrate 100, comprising:
The end of several scan lines 110 disposed in parallel, several scan lines 110 is connected by a metal wire 120
It connects, the first electric discharge part 121 is provided on the metal wire 120；
Public electrode wire 130 is provided with second opposite with the first electric discharge part 121 on the public electrode wire 130
Discharge part 131, i.e., the first electric discharge part 121 and the second electric discharge part 131 exist in pairs；
Insulating layer 140 between the metal wire 120 and the public electrode wire 130 is set.
Wherein, the first electric discharge part 121 and the second electric discharge part 131 are for concentrating on the electrostatic formed in array substrate 100
It is discharged in insulating layer 140.It is several right that first electric discharge part 121 and the second electric discharge part 131 have, in array distribution in array substrate
On 100, specific arrangement mode or interval determine according to actual needs, are not specifically limited in the present embodiment.
Electrostatic protection structure in the present embodiment, a large amount of electrostatic formed on public electrode wire 130 and scan line 110
Lotus is directed to fixed region, carries out electrostatic charge in insulating layer 140 by the first electric discharge part 121 and the second electric discharge part 131
Release, can effectively reduce the probability that wound the effective display area domain circuit of display panel, improves production yield.
In one embodiment, it is equipped with tip with continued reference to Fig. 1, the first electric discharge part 121 and the second electric discharge part 131, and
The tip of first electric discharge part 121 and the tip of the second electric discharge part 131 are oppositely arranged, and the setting at tip can enable electrostatic charge to concentrate on
It is discharged on one point, electrostatic charge is avoided to scatter, effectively reduce the area impacted in array substrate when electrostatic charge release.
Specifically, the tip of the first electric discharge part 121 and the second electric discharge part 131 is cone, to enhance the electric discharge at tip
Effect.
Wherein, metal wire 120 is the first metal layer, and public electrode wire 130 is second metal layer, and insulating layer 140 is located at the
Between one metal layer and second metal layer, i.e. the first metal layer, insulating layer 140 and the setting of second metal layer sequence lamination.
One end of first electric discharge part 121 is connect with the first metal layer, and the other end is connect with insulating layer 140；Second electric discharge part
131 one end is connect with second metal layer, and the other end is connect with the insulating layer 140.Specifically, the point of the first electric discharge part 121
End and the tip of the second electric discharge part 131 are connect with insulating layer 140 respectively, are discharged electrostatic charge in insulating layer 140, are effectively reduced
It wound the probability of array substrate effective coverage circuit when Electro-static Driven Comb, improve production yield.
In one embodiment, with continued reference to Fig. 1, often it is separated by two scan lines 110, setting a pair the first electric discharge part 121
With the second electric discharge part 131.Wherein, be additionally provided with several pixels 150 in array substrate 100, each pixel 150 respectively with it is public
Electrode wires 130 and scan line 110 connect, and the distance between each pair of first electric discharge part 121 and the second electric discharge part 131 can be pixel
0.5 times, 1 times, 2 times or 4 times of spacing, can select suitable distance according to actual needs, each to the first electric discharge part 121 to guarantee
It is not overlapped with the Electro-static Driven Comb region of the second electric discharge part 131.Specifically, the first electric discharge part 121 and the second electric discharge setting of part 131 exist
The edge side of array substrate 100, further mitigate electrostatic charge release when in array substrate caused by influence；Make the electrostatic simultaneously
The setting of safeguard structure will not occupy the area of 100 display area of array substrate, and the setting for mitigating the electrostatic protection structure is poised for battle
The influence of 100 upward wiring of column substrate.
Electrostatic protection structure in the present embodiment, the first electric discharge part 121 and the second electric discharge part 131 are equipped with tip, and the
The tip of one electric discharge part 121 and the tip of the second electric discharge part 131 are oppositely arranged, and the setting at tip can enable electrostatic charge to concentrate on one
It is discharged on a point, electrostatic charge is avoided to scatter, effectively reduce the area impacted in array substrate when electrostatic charge release；?
The a large amount of electrostatic charges formed on public electrode wire 130 and scan line 110 are directed to fixed region, pass through the first electric discharge part 121
It is discharged in insulating layer 140 with the second electric discharge part 131, can effectively reduce the effective display area domain circuit that wound display panel
Probability, improve production yield.
Conceived based on foregoing invention, propose a kind of electrostatic protection method, as Figure 2-3, comprising:
S201, the end of several scan lines 310 disposed in parallel is connected by a metal wire 320；
S202, the first electric discharge part 321 is provided on the metal wire 320；
S203, it second opposite with the first electric discharge part 321 is set on public electrode wire 330 discharges part 331, i.e., the
One electric discharge part 321 and the second electric discharge part 331 exist in pairs；
S204, insulating layer 340 is set between the metal wire 320 and the public electrode wire 330.
Wherein, which applies in array substrate 300, and the first electric discharge part 321 and the second electric discharge part 331 are used
In the electrostatic formed in array substrate 300 is concentrated in insulating layer 340 discharging.First electric discharge part 321 and the second electric discharge
It is several right that part 331 has, and in array distribution in array substrate 300, specific arrangement mode or interval determine according to actual needs, can
With reference to the arrangement mode and interval of the first electric discharge part 321 in last embodiment and the second electric discharge part 331, does not do and have in the present embodiment
Body limits.
Electrostatic protection method in the present embodiment, a large amount of electrostatic charges formed on public electrode wire 330 and scan line 310
It is directed to fixed region, is discharged in insulating layer 340 by the first electric discharge part 321 and the second electric discharge part 331, it can be effective
The probability that wound the effective display area domain circuit of display panel is reduced, production yield is improved.
In one embodiment, with continued reference to Fig. 2-3, the electrostatic protection method further include disconnect the scan line 310 with
Connection between the metal wire 320.
Therefore the method in the present embodiment comprising steps of
S201, the end of several scan lines 310 disposed in parallel is connected by a metal wire 320；
S202, the first electric discharge part 321 is provided on the metal wire 320；
S203, it second opposite with the first electric discharge part 321 is set on public electrode wire 330 discharges part 331, i.e., the
One electric discharge part 321 and the second electric discharge part 331 exist in pairs；
S204, insulating layer 340 is set between the metal wire 320 and the public electrode wire 330；
Connection between S205, disconnection scan line 310 and metal wire 320.
Wherein, in step S205, the connection between scan line 310 and metal wire 320 is disconnected, it can be parallel several
The end connecting in the scan line 310 of setting with metal wire 320 is cut away, and makes to be restored to original connection between each scan line 310
State, display panel can normal use after disconnecting the connection between scan line 310 and metal wire 320.Specifically, scan line is cut away
The mode of 310 ends connecting with metal wire 320 can be cut for laser cutting, cutting line 360 of the laser in Fig. 3
It cuts, makes to be restored to original connection status between each scan line 310.
Electrostatic protection method in the present embodiment, a large amount of electrostatic formed on public electrode wire 330 and scan line 310
Lotus is directed to fixed region, carries out electrostatic charge in insulating layer 340 by the first electric discharge part 321 and the second electric discharge part 331
Release, can effectively reduce the probability that wound the effective display area domain circuit of display panel, improves production yield.
In one embodiment, tip is set on the first electric discharge part 321 and the second electric discharge part 331 respectively, and by first
Tip on electric discharge part 321 is oppositely arranged with the tip on the second electric discharge part 331, and the setting at tip can enable electrostatic charge to concentrate on
It is discharged on one point, electrostatic charge is avoided to scatter, effectively reduce the area impacted in array substrate when electrostatic charge release.
Wherein, metal wire 320 is the first metal layer, and public electrode wire 330 is second metal layer, and insulating layer 340 is located at the
Between one metal layer and second metal layer, i.e. the first metal layer, insulating layer 340 and the setting of second metal layer sequence lamination.
It connect one end of the first electric discharge part 321 with the first metal layer, the other end is connect with insulating layer 340；Second is set to put
One end of electric part 331 is connect with second metal layer, and the other end is connect with the insulating layer 340.First electric discharge part 321 tip and
The tip of second electric discharge part 331 is connect with insulating layer 340 respectively, is discharged electrostatic charge in insulating layer 340, is effectively reduced electrostatic
It wound the probability of array substrate effective coverage circuit when release, improve production yield.
Point is arranged on the first electric discharge part 321 and the second electric discharge part 331 respectively in electrostatic protection method in the present embodiment
End, and the tip that first discharges on part 321 is oppositely arranged with the tip on the second electric discharge part 331, the setting at tip can make quiet
Charge can concentrate on a point discharging, and electrostatic charge is avoided to scatter, and make in array substrate when effectively reducing electrostatic charge release
At the area of influence；The a large amount of electrostatic charges formed on public electrode wire 330 and scan line 310 are directed to fixed region, are led to
It crosses the first electric discharge part 321 and the second electric discharge part 331 is discharged in insulating layer 340, can effectively reduce and wound display panel
The probability of effective display area domain circuit, improves production yield.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of electrostatic protection structure is arranged in array substrate characterized by comprising
The end of several scan lines disposed in parallel, each scan line is connected by a metal wire, is set on the metal wire
It is equipped with the first electric discharge part；
Public electrode wire is provided with the second electric discharge part opposite with the first electric discharge part on the public electrode wire；
Insulating layer between the metal wire and the public electrode wire is set.
2. electrostatic protection structure according to claim 1, which is characterized in that the metal wire is the first metal layer, described
Public electrode wire is second metal layer, and the insulating layer is between the first metal layer and the second metal layer.
3. electrostatic protection structure according to claim 2, which is characterized in that one end and described the of the first electric discharge part
The other end of the connection of one metal layer, the first electric discharge part is connect with the insulating layer.
4. electrostatic protection structure according to claim 2, which is characterized in that one end and described the of the second electric discharge part
The other end of the connection of two metal layers, the second electric discharge part is connect with the insulating layer.
5. electrostatic protection structure according to claim 1, which is characterized in that be often separated by two scan lines, setting one
A first electric discharge part and a second electric discharge part opposite with the first electric discharge part.
6. electrostatic protection structure described in -5 any one according to claim 1, which is characterized in that the first electric discharge part and the
Two electric discharge parts are equipped with tip, and the tip of the first electric discharge part and the tip of the second electric discharge part are oppositely arranged.
7. a kind of electrostatic protection structure characterized by comprising
The end of several scan lines disposed in parallel, several scan lines is connected by a metal wire, the metal wire
On be provided with the first electric discharge part；
Public electrode wire is provided with the second electric discharge part opposite with the first electric discharge part on the public electrode wire；
Insulating layer between the metal wire and the public electrode wire is set；
Wherein, the first electric discharge part and the second electric discharge part are equipped with tip, the tip and described second of the first electric discharge part
The tip of electric discharge part is oppositely arranged；
The metal wire is the first metal layer, and the public electrode wire is second metal layer, and the insulating layer is located at described first
Between metal layer and the second metal layer；
One end of the first electric discharge part is connect with the first metal layer, the other end of the first electric discharge part and the insulation
Layer connection；
One end of the second electric discharge part is connect with the second metal layer, the other end of the second electric discharge part and the insulation
Layer connection；
Often it is separated by two scan lines, a pair of first electric discharge part of setting and the second electric discharge part.
8. a kind of electrostatic protection method characterized by comprising
The end of several scan lines disposed in parallel is connected by a metal wire；
The first electric discharge part is provided on the metal wire；
The second electric discharge part opposite with the first electric discharge part is set on public electrode wire；
Insulating layer is set between the metal wire and the public electrode wire.
9. electrostatic protection method according to claim 8, which is characterized in that the electrostatic protection method further include: disconnect
Connection between the scan line and the metal wire.
10. electrostatic protection method according to claim 8, which is characterized in that respectively in the first electric discharge part and described
Tip is set on second electric discharge part, and set the tip on the first electric discharge part is opposite with the tip that described second discharges on part
It sets.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811589920.6A CN109725469B (en) | 2018-12-25 | 2018-12-25 | Electrostatic protection structure and electrostatic protection method |
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| CN201811589920.6A CN109725469B (en) | 2018-12-25 | 2018-12-25 | Electrostatic protection structure and electrostatic protection method |
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| CN109725469A true CN109725469A (en) | 2019-05-07 |
| CN109725469B CN109725469B (en) | 2022-05-06 |
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Cited By (1)
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| CN114446260A (en) * | 2022-03-24 | 2022-05-06 | 北京京东方显示技术有限公司 | Array substrate and display device |
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| Publication number | Publication date |
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| CN109725469B (en) | 2022-05-06 |
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