CN104730745B - A kind of electrostatic discharge protection device and display panel - Google Patents
A kind of electrostatic discharge protection device and display panel Download PDFInfo
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- CN104730745B CN104730745B CN201510166592.9A CN201510166592A CN104730745B CN 104730745 B CN104730745 B CN 104730745B CN 201510166592 A CN201510166592 A CN 201510166592A CN 104730745 B CN104730745 B CN 104730745B
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- 230000005684 electric field Effects 0.000 claims abstract description 24
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 11
- 230000015556 catabolic process Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
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Abstract
The embodiments of the invention provide a kind of electrostatic discharge protection device and display panel; to solve in existing display panel; when the electrostatic charge of the generation in electrode wires is excessive; the insulating barrier between two strip electrode lines may be punctured; so that the two strip electrode lines conducting that should be insulated, causes the problem of display panel breaks down.The device includes the first sparking electrode and the second sparking electrode；First sparking electrode is electrically connected with first electrode line, second sparking electrode is electrically connected with second electrode line, the maximum field intensity of electric field between mutually insulated between first sparking electrode and second sparking electrode, and first sparking electrode and second sparking electrode is more than the maximum field intensity of the electric field between the first electrode line and the second electrode line；Wherein, the first electrode line and the second electrode line are the electrode wires in display panel, and mutually insulated between the first electrode line and the second electrode line.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of electrostatic discharge protection device and display panel.
Background technology
The structure of liquid crystal display panel is one layer of liquid crystal of color membrane substrates and array base palte sandwich, wherein, array base palte
On include thin film transistor (TFT) (TFT, Thin-Film Transistor), data wire and grid for driving liquid crystal display
Line, these lines may be collectively referred to as electrode wires.
Make array base palte when, it is necessary on the glass substrate plated film, etching, so that various electrode wires are formed, positioned at not
Electrode wires with layer may intersect, the structure of electrode wires after intersection formation as shown in figure 1, wherein, first electrode line 11 with
Second electrode line 12 is located at different layers, has insulation between the layer where layer and second electrode line 12 where first electrode line 11
Layer, therefore, mutually insulated between first electrode line 11 and second electrode line 12.
But it is due to display panel during manufacture, transport or use, electrostatic charge can be produced in electrode wires, works as phase
When the electrostatic charge on two strip electrode lines mutually intersected is excessive, it may occur that Electro-static Driven Comb, so as to puncture cross one another two strip electrode
Insulating barrier between line so that the two strip electrode lines conducting that should be insulated, so that display panel breaks down.
In summary, in existing display panel, when the electrostatic charge of the generation in electrode wires is excessive, it may puncture
Insulating barrier between cross one another two strip electrodes line so that the two strip electrode lines conducting that should be insulated, so that display surface
Plate breaks down.
The content of the invention
The embodiments of the invention provide a kind of electrostatic discharge protection device and display panel, to solve in existing display
In panel, when the electrostatic charge of the generation in electrode wires is excessive, the insulating barrier between two strip electrode lines may be punctured so that this
The two strip electrode lines conducting of the insulation, causes the problem of display panel breaks down.
Based on above mentioned problem, a kind of electrostatic discharge protection device provided in an embodiment of the present invention, including the first sparking electrode
With the second sparking electrode；
First sparking electrode is electrically connected with first electrode line, and second sparking electrode is electrically connected with second electrode line
Connect, mutually insulated between first sparking electrode and second sparking electrode, and first sparking electrode and described the
Maximum field intensity in electric field between two sparking electrodes is more than between the first electrode line and the second electrode line
Maximum field intensity in electric field；
Wherein, the first electrode line and the second electrode line are the electrode wires in display panel, and described first
Mutually insulated between electrode wires and the second electrode line.
A kind of display panel provided in an embodiment of the present invention, including electrostatic discharge protection provided in an embodiment of the present invention dress
Put.
The beneficial effect of the embodiment of the present invention includes：
Electrostatic discharge protection device provided in an embodiment of the present invention and display panel, due in electrostatic discharge protection device
First sparking electrode is electrically connected with first electrode line, and the second sparking electrode is electrically connected with second electrode line, and the first electric discharge electricity
Maximum field intensity in electric field between pole and the second sparking electrode is more than the electricity between first electrode line and second electrode line
Maximum field intensity in, therefore, the breakdown voltage between the first sparking electrode and the second sparking electrode are less than first electrode
Breakdown voltage between line and second electrode line, that is to say, that excessive quiet when being accumulated on first electrode line and second electrode line
After electric charge, before first electrode line and second electrode line mutually discharge, meeting between the first sparking electrode and the second sparking electrode
First discharge, so that the electric charge accumulated on the first discharge plume and second electrode line is discharged, it is to avoid puncture first electrode line and
Insulating barrier between second electrode line, so as to avoid damaging the display panel comprising first electrode line and second electrode line.
Brief description of the drawings
Fig. 1 is the first electrode line and the structural representation of second electrode line in display panel of the prior art；
Fig. 2 is one of structural representation of electrostatic discharge protection device provided in an embodiment of the present invention；
Fig. 3 is the two of the structural representation of electrostatic discharge protection device provided in an embodiment of the present invention；
Fig. 4 is the three of the structural representation of electrostatic discharge protection device provided in an embodiment of the present invention；
Fig. 5 is the four of the structural representation of electrostatic discharge protection device provided in an embodiment of the present invention；
Fig. 6 is the five of the structural representation of electrostatic discharge protection device provided in an embodiment of the present invention；
Fig. 7 is the six of the structural representation of electrostatic discharge protection device provided in an embodiment of the present invention.
Embodiment
Electrostatic discharge protection device provided in an embodiment of the present invention and display panel, because the first sparking electrode is put with second
Maximum field intensity in electric field between electrode is more than the maximum in the electric field between first electrode line and second electrode line
Electric-field intensity, therefore, the breakdown voltage between the first sparking electrode and the second sparking electrode is less than first electrode line and the second electricity
Breakdown voltage between polar curve, that is to say, that after excessive electrostatic charge is accumulated on first electrode line and second electrode line,
Before one electrode wires are mutually discharged with second electrode line, the first sparking electrode electrically connected with first electrode line and and second electrode
Can first it be discharged between second sparking electrode of line electrical connection, so as to discharge what is accumulated on the first discharge plume and second electrode line
Electric charge, it is to avoid mutually discharged between first electrode line and second electrode line, punctures the insulating barrier between them, so as to avoid damaging
Display panel comprising first electrode line and second electrode line.
With reference to Figure of description, to a kind of electrostatic discharge protection device provided in an embodiment of the present invention and display panel
Embodiment illustrate.
A kind of electrostatic discharge protection device provided in an embodiment of the present invention, including the first sparking electrode and the second electric discharge electricity
Pole；
First sparking electrode is electrically connected with first electrode line, and second sparking electrode is electrically connected with second electrode line
Connect, mutually insulated between first sparking electrode and second sparking electrode, and first sparking electrode and described the
Maximum field intensity in electric field between two sparking electrodes is more than between the first electrode line and the second electrode line
Maximum field intensity in electric field, therefore, the breakdown voltage between first sparking electrode and second sparking electrode are small
Breakdown voltage between the first electrode line and the second electrode line；
Wherein, the first electrode line and the second electrode line are the electrode wires in display panel, and described first
Mutually insulated between electrode wires and the second electrode line.
Wherein, first electrode line and second electrode line can cross one another, and can not also intersect, no matter first electrode line with
Second electrode line intersects or not intersected, and there is insulating barrier between first electrode line and second electrode line, so that
First electrode line and second electrode line mutually insulated.The layer where layer and the second sparking electrode where first sparking electrode can be with
It is same layer or different layers.
When first electrode line does not intersect with second electrode line, the first sparking electrode and the second sparking electrode are respectively positioned on first
Between electrode wires and second electrode line, and minimum range between the first sparking electrode and the second sparking electrode is less than first electrode
Minimum range between line and second electrode line, so that it is guaranteed that in electric field between the first sparking electrode and the second sparking electrode
Maximum field intensity is more than the maximum field intensity in the electric field between first electrode line and second electrode line.
Alternatively, where the first sparking electrode the layer where layer and the second sparking electrode is same layer.When the first electric discharge
When the layer where layer and the second sparking electrode where electrode is same layer, layer and first electrode line where the first sparking electrode
The layer at place can be same layer, or different layers, the layer where the first sparking electrode and the layer where second electrode line
Can be same layer, or different layers, the layer where the first sparking electrode can also with the layer where first electrode line with
And the layer where second electrode line is different layers.
Only illustrated below so that first electrode line intersects with second electrode line as an example.When first electrode line and second
When electrode wires intersect, the first sparking electrode can be connected with any portion in first electrode line, the second sparking electrode
It can be connected with any portion in second electrode line, as long as disclosure satisfy that between the first sparking electrode and the second sparking electrode
Maximum field intensity in electric field is more than the maximum field intensity in the electric field between first electrode line and second electrode line.
It is preferred that the first sparking electrode connection first electrode line and the cross one another part of second electrode line.
When the layer where the layer where the first sparking electrode and the second sparking electrode is same layer, and the first sparking electrode institute
Layer and first electrode line where layer and layer where second electrode line be different layers when, the embodiment of the present invention is provided
Electrostatic discharge protection device, as shown in Fig. 2 on the border of the first sparking electrode 23 exist at least one first point of discharge, institute
At least one in the first point of discharge is stated just to the second sparking electrode 24；First point of discharge is the side of the first sparking electrode 23
Side of the curvature more than the part that intersected in first electrode line 21 with second electrode line 22 (part of Fig. 2 bends filling) in boundary
The point of the curvature of each point in boundary.
In Fig. 2 by the first sparking electrode 23 be ellipse, the second sparking electrode 24 be rectangle exemplified by illustrate, certainly,
First sparking electrode 23 and the second sparking electrode 24 can also be other shapes.Because the first sparking electrode 23 is ellipse, because
This, the curvature of the borderline each point of the first sparking electrode 23 is all higher than in first electrode line 21 mutually handing over second electrode line 22
The curvature of the borderline each point of fork point (part of Fig. 2 bends filling).Also, because the first sparking electrode 23 is ellipse
Shape, and the maximum curvature in ellipse at two end points of major axis, therefore, by two end points of the major axis of ellipse just to second
Sparking electrode 24 can increase the maximum field intensity of the electric field between the first sparking electrode 23 and the second sparking electrode 24.
In fig. 2, the rectangular box with cross represents the via between the first sparking electrode 23 and first electrode line 21,
And the second via between sparking electrode 24 and second electrode line 22.
First sparking electrode 23 can be located at the surface of first electrode line 21, can also be located at the oblique of first electrode line 21
Top.It is located at surface (so, the first sparking electrode 23 and first of first electrode line 21 in Fig. 2 with the first sparking electrode 23
Electrode wires 21 only can be connected by via), the second sparking electrode 24 is located at the surface (so, second of second electrode line 22
Sparking electrode 24 only can be connected with second electrode line 22 by via) exemplified by illustrate.In fig. 2, the first sparking electrode
23 and second sparking electrode 24 be located at same layer, be third layer metal, have insulation between third layer metal and second electrode line 22
Layer, also has insulating barrier between third layer metal and first electrode line 21, this scheme can be applicable in the technique of multiple layer metal.
In fig. 2, in the first sparking electrode 23 connection first electrode line 21 and cross one another part of second electrode line 22,
Certainly, the first sparking electrode 23 can also connect the other parts in first electrode line 21 in addition to the part that intersects.
It is preferred that electrostatic discharge protection device provided in an embodiment of the present invention, as shown in figure 3, the second sparking electrode 24
There is side of at least one at least one second point of discharge, second point of discharge just to the first sparking electrode 23 on border
At least one first point of discharge in boundary；Second point of discharge is that curvature is more than the second electricity on the border of the second sparking electrode 24
The point of the curvature of each point intersected in polar curve 22 with first electrode line 21 on portion boundary.
At least one point of discharge on first sparking electrode 23 just at least one point of discharge on the second sparking electrode 24,
Point discharge is so may be constructed, so as to further increase the electric field between the first sparking electrode 23 and the second sparking electrode 24
Maximum field intensity.
Further, electrostatic discharge protection device provided in an embodiment of the present invention, as shown in figure 4, the first sparking electrode 23
Border formed figure in have angle be less than 180 degree angle, and in the figure angle be less than 180 degree angle just to described
Second sparking electrode 24.
Angle is less than angle one tip of composition of 180 degree, first in the figure that the border of the first sparking electrode 23 is formed
Sparking electrode 23 can be discharged by the tip to the second sparking electrode 24.In the figure that the border of first sparking electrode 23 is formed
The angle that angle is less than 180 degree is borderline first point of discharge of the first sparking electrode 23.
Certainly, more than one angle can is less than the angle of 180 degree in the figure that the border of the first sparking electrode 23 is formed.
As shown in figure 4, in electrostatic protection device provided in an embodiment of the present invention, the border formation of the second sparking electrode 24
There is angle to be less than the angle of 180 degree in figure, and angle is less than the angle of 180 degree just to first sparking electrode in the figure
At least one point of discharge in 23.
Angle is less than angle one tip of composition of 180 degree, second in the figure that the border of the second sparking electrode 24 is formed
Sparking electrode 24 can be discharged by the tip to the first sparking electrode 23.In the figure that the border of second sparking electrode 24 is formed
The angle that angle is less than 180 degree is borderline second point of discharge of the second sparking electrode 24.
Certainly, more than one angle can is less than the angle of 180 degree in the figure that the border of the second sparking electrode 24 is formed.
In Fig. 4, the figure that the border of the first sparking electrode 23 is formed is hexagon, the border shape of the second sparking electrode 24
Into figure be pentagon, certainly, figure and the border shape of the second sparking electrode 24 that the border of the first sparking electrode 23 is formed
Into figure can also be other shapes, as long as between the first sparking electrode 23 and the second sparking electrode 24 constitute tip put
Electricity, is more than first electrode line with the maximum field intensity for realizing the electric field between the first sparking electrode 23 and the second sparking electrode 24
The maximum field intensity of electric field between 21 and second electrode line 22.
Layer where first sparking electrode and the second sparking electrode can be located at the layer and second where first electrode line
The same side of layer where electrode wires, can also be between the layer where first electrode line and the layer where second electrode line.
When the layer where the layer where the first sparking electrode and the second sparking electrode is same layer, and the first sparking electrode institute
Layer and first electrode line where layer be same layer when, electrostatic discharge protection device provided in an embodiment of the present invention, such as Fig. 5
It is shown, there is at least one at least one first point of discharge, first point of discharge on the border of the first sparking electrode 51
Just to the second sparking electrode 52；First point of discharge is that curvature is more than first electrode line 21 on the border of the first sparking electrode 51
In with second electrode line 22 intersect the part part of filling (Fig. 5 bends) borderline each point curvature point.
In Fig. 5 by the first sparking electrode 51 be ellipse a part, the second sparking electrode 52 be rectangle exemplified by said
Bright, certainly, the first sparking electrode 51 and the second sparking electrode 52 can also be other shapes.Because the first sparking electrode 23 is ellipse
A circular part, therefore, the curvature of the borderline each point of the first sparking electrode 51 are all higher than in first electrode line 21 and the
Two electrode wires 22 intersect the part part of filling (Fig. 2 bends) borderline each point curvature.Also, due to first
Sparking electrode 23 is a part (part for including point of maximum curvature) for ellipse, therefore, the maximum point of rate will be removed in ellipse
The maximum field of the electric field between first sparking electrode 51 and the second sparking electrode 52 can just be increased the second sparking electrode 52
Intensity.
In Figure 5, the rectangular box with cross represents the via between the second sparking electrode 52 and second electrode line 22.
Second sparking electrode 52 can be located at the surface of second electrode line 22, can also be located at the oblique of second electrode line 22
It is located at surface (so, the second sparking electrode 52 and second of second electrode line 22 in top, Fig. 5 with the second sparking electrode 52
Electrode wires 22 can only by via be connected) exemplified by illustrate.In Figure 5, the first sparking electrode 23, the second sparking electrode 24
It is located at same layer with first electrode line 21, has insulating barrier between the layer and second electrode line 22.
In Figure 5, in the first sparking electrode 51 connection first electrode line 21 and cross one another part of second electrode line 22,
Certainly, the first sparking electrode 51 can also connect the other parts in first electrode line 21 in addition to the part that intersects.
It is preferred that electrostatic discharge protection device provided in an embodiment of the present invention, as shown in fig. 6, the second sparking electrode 52
There is side of at least one at least one second point of discharge, second point of discharge just to the first sparking electrode 51 on border
At least one first point of discharge in boundary；Second point of discharge is that curvature is more than the second electricity on the border of the second sparking electrode 52
The point of the curvature of each point intersected in polar curve 22 with first electrode line 21 on portion boundary.
At least one point of discharge on first sparking electrode 51 just at least one point of discharge on the second sparking electrode 52,
Point discharge is so may be constructed, so as to further increase the electric field between the first sparking electrode 51 and the second sparking electrode 52
Maximum field intensity.
Further, electrostatic discharge protection device provided in an embodiment of the present invention, as shown in fig. 7, the first sparking electrode 51
Border formed figure in have angle be less than 180 degree angle, and in the figure angle be less than 180 degree angle just to second
Sparking electrode 52.
Angle is less than angle one tip of composition of 180 degree, first in the figure that the border of the first sparking electrode 51 is formed
Sparking electrode 51 can be discharged by the tip to the second sparking electrode 52.In the figure that the border of first sparking electrode 51 is formed
The angle that angle is less than 180 degree is borderline first point of discharge of the first sparking electrode 51.
Certainly, more than one angle can is less than the angle of 180 degree in the figure that the border of the first sparking electrode 51 is formed.
As shown in fig. 7, in electrostatic protection device provided in an embodiment of the present invention, the border formation of the second sparking electrode 52
There is angle to be less than the angle of 180 degree in figure, and angle is less than the angle of 180 degree just to first sparking electrode in the figure
At least one point of discharge in 51.
Angle is less than angle one tip of composition of 180 degree, second in the figure that the border of the second sparking electrode 52 is formed
Sparking electrode 52 can be discharged by the tip to the first sparking electrode 51.In the figure that the border of second sparking electrode 52 is formed
The angle that angle is less than 180 degree is borderline second point of discharge of the second sparking electrode 52.
Certainly, more than one angle can is less than the angle of 180 degree in the figure that the border of the second sparking electrode 52 is formed.
In the figure 7, the figure that the border of the first sparking electrode 51 is formed is triangle, the border shape of the second sparking electrode 52
Into figure be pentagon, certainly, figure and the border shape of the second sparking electrode 52 that the border of the first sparking electrode 51 is formed
Into figure can also be other shapes, as long as between the first sparking electrode 51 and the second sparking electrode 52 constitute tip put
Electricity, is more than first electrode line with the maximum field intensity for realizing the electric field between the first sparking electrode 51 and the second sparking electrode 52
The maximum field intensity of electric field between 21 and second electrode line 22.
In the electrostatic discharge protection device shown in Fig. 2~Fig. 4, first electrode line, second electrode line, the first sparking electrode
It is located at the second sparking electrode in different three layers, has insulating barrier between this three layers；In the Electro-static Driven Comb shown in Fig. 5~Fig. 7
In protection device, first electrode line, the first sparking electrode and the second sparking electrode are located at one layer, and second electrode line is located at another
Layer, there is insulating barrier between this two layers.
Display panel provided in an embodiment of the present invention includes electrostatic discharge protection device provided in an embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module or stream in accompanying drawing
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in embodiment can be divided according to embodiment description
It is distributed in the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of electrostatic discharge protection device, it is characterised in that including the first sparking electrode and the second sparking electrode；
First sparking electrode is electrically connected with first electrode line, and second sparking electrode is electrically connected with second electrode line, institute
State mutually insulated between the first sparking electrode and second sparking electrode, and first sparking electrode and the described second electric discharge
Maximum field intensity in electric field between electrode is more than in the electric field between the first electrode line and the second electrode line
Maximum field intensity；And first sparking electrode is connected mutually to be handed in the first electrode line with the second electrode line
The part of fork；
Wherein, the first electrode line and the second electrode line are the electrode wires in display panel, and the first electrode
Mutually insulated between line and the second electrode line.
2. electrostatic discharge protection device as claimed in claim 1, it is characterised in that layer where first sparking electrode with
Layer where second sparking electrode is same layer.
3. electrostatic discharge protection device as claimed in claim 2, it is characterised in that deposited on the border of first sparking electrode
At least one at least one the first point of discharge, first point of discharge is just to second sparking electrode；Described first
Point of discharge is that curvature is mutual with the second electrode line more than in the first electrode line on the border of first sparking electrode
The point of the curvature of the borderline each point of cross section.
4. electrostatic discharge protection device as claimed in claim 3, it is characterised in that the border of first sparking electrode is formed
Figure in have angle be less than 180 degree angle, and in the figure angle be less than 180 degree angle just to described second electric discharge electricity
Pole.
5. electrostatic discharge protection device as claimed in claim 3, it is characterised in that deposited on the border of second sparking electrode
At least one at least one the second point of discharge, second point of discharge is just to the borderline of first sparking electrode
At least one first point of discharge；Second point of discharge is that curvature is more than the described second electricity on the border of second sparking electrode
The point of the curvature of each point intersected in polar curve with the first electrode line on portion boundary.
6. electrostatic discharge protection device as claimed in claim 5, it is characterised in that the border of second sparking electrode is formed
Figure in have angle be less than 180 degree angle, and in the figure angle be less than 180 degree angle just to described first electric discharge electricity
At least one point of discharge in extremely.
7. electrostatic discharge protection device as claimed in claim 2, it is characterised in that layer and institute where the second electrode line
Stating has layer and first sparking electrode where insulating barrier, and the first electrode line between the layer where the second sparking electrode
There is insulating barrier between the layer at place, first sparking electrode is connected with the first electrode line by via, described second puts
Electrode is connected with the second electrode line by via.
8. electrostatic discharge protection device as claimed in claim 2, it is characterised in that layer and institute where the second electrode line
Layer where stating the second sparking electrode is same layer, where the layer and first sparking electrode where the first electrode line
There is insulating barrier between layer, first sparking electrode is connected with the first electrode line by via.
9. a kind of display panel, it is characterised in that including the electrostatic discharge protection device as described in claim 1~8 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510166592.9A CN104730745B (en) | 2015-04-09 | 2015-04-09 | A kind of electrostatic discharge protection device and display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510166592.9A CN104730745B (en) | 2015-04-09 | 2015-04-09 | A kind of electrostatic discharge protection device and display panel |
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| Publication Number | Publication Date |
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| CN104730745A CN104730745A (en) | 2015-06-24 |
| CN104730745B true CN104730745B (en) | 2017-08-25 |
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| CN201510166592.9A Expired - Fee Related CN104730745B (en) | 2015-04-09 | 2015-04-09 | A kind of electrostatic discharge protection device and display panel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560688A (en) * | 2004-03-10 | 2005-01-05 | 友达光电股份有限公司 | Electrostatic discharge guiding structure and liquid crystal display, with electrostatic discharge guiding structure |
| CN101441372A (en) * | 2007-11-23 | 2009-05-27 | 上海广电Nec液晶显示器有限公司 | Electrostatic discharge protection device of LCD device and manufacturing method thereof |
| CN101630072A (en) * | 2008-07-18 | 2010-01-20 | 群康科技(深圳)有限公司 | Liquid crystal display panel |
| CN103676378A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and manufacturing method of array substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070146564A1 (en) * | 2005-12-23 | 2007-06-28 | Innolux Display Corp. | ESD protection circuit and driving circuit for LCD |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560688A (en) * | 2004-03-10 | 2005-01-05 | 友达光电股份有限公司 | Electrostatic discharge guiding structure and liquid crystal display, with electrostatic discharge guiding structure |
| CN101441372A (en) * | 2007-11-23 | 2009-05-27 | 上海广电Nec液晶显示器有限公司 | Electrostatic discharge protection device of LCD device and manufacturing method thereof |
| CN101630072A (en) * | 2008-07-18 | 2010-01-20 | 群康科技(深圳)有限公司 | Liquid crystal display panel |
| CN103676378A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and manufacturing method of array substrate |
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