CN101035404A - Structure of display panel for improving the static discharge resistance - Google Patents
Structure of display panel for improving the static discharge resistance Download PDFInfo
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- CN101035404A CN101035404A CN 200610056988 CN200610056988A CN101035404A CN 101035404 A CN101035404 A CN 101035404A CN 200610056988 CN200610056988 CN 200610056988 CN 200610056988 A CN200610056988 A CN 200610056988A CN 101035404 A CN101035404 A CN 101035404A
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Abstract
The invention relates to a display panel structure for improving static discharge resistance, comprising first substrate, pixel array region and static discharge protection path, where the pixel array region is arranged on the first substrate, the pixel array region is equipped with at least a pixel cell and at least a data channel, and the static discharge protection path encircles the pixel array region to conduct static current.
Description
Technical field
The invention relates to a kind of electrostatic discharge protective device, and particularly relevant for a kind of display panel structure that promotes static discharge resistance.
Background technology
Electronic product often may suffer static discharge in actual environment for use (electrostaticdischarge, impact ESD) will be if no suitable safeguard measure will cause the inner member damage.Actually, the more general supply voltage that provides of static discharge voltage goes out a lot of greatly, and when static discharge took place, this static discharge current burnt element possibly.It is very important avoiding the element damage so how to isolate the electrostatic current electricity.For avoiding aforementioned circumstances, must in circuit, do some electrostatic discharge (ESD) protection measures.(the International ElectrotechnicalCommission of International Electrotechnical Commission, IEC) just (electromagnetic compatibility EMC) works out some protection and testing standard at static discharge resistance (ESD immunity) and electromagnetic compatibility.For example, International Electrotechnical Commission announces that April calendar year 2001 " the 4-1 portion of electromagnetic compatibility: test and measurement technology-static discharge resistance " (generally being called for short IEC.61000-4-2) is the protection and the testing standard of wherein a kind of electronic product.
Fig. 1 be with " glass flip chip encapsulation " (chip-on-glass) technology be example, illustrate that tradition is at the ESD protection device of display panels 100.Dispose integrated circuit 120 and pixel array region 130 among Fig. 1 on the glass substrate 110.At this so that " " expression is disposed at all electric components (except the element of pixel array region 130) on the glass substrate 110 to integrated circuit 120, that is " integrated circuit 120 " is not only to be expressed as single packaged integrated circuits.Have a plurality of pixel cells in the pixel array region 130, for example pixel cell 131 is one of them among the figure.Each pixel cell sees through corresponding data channel respectively and is electrically connected to integrated circuit 120.Each pixel cell sees through corresponding scan channel more respectively and is electrically connected to integrated circuit 120 in addition, with the keying sequential of control pixel cell.Therefore, each pixel cell just can be according to the control of integrated circuit 120 and driving and display image.
Usually, the electrostatic storage deflection (ESD) protection circuit of display floater 100 is to be configured in the pixel array region 130.The electrostatic storage deflection (ESD) protection circuit of known techniques comprises common lead 132 and a plurality of protecting component for electrostatic discharge 133.Each data channel sees through corresponding protecting component for electrostatic discharge 133 separately and is coupled to common lead 132 with scan channel.When impacting pixel array region 130 when static discharge takes place, electrostatic current can be earlier with each data channel and each scan channel as its flow path.At this moment, each protecting component for electrostatic discharge 133 must be able in time start, so that most electrostatic current is directed at common lead 132.Common lead 132 guides to electrostatic current next stage electrostatic storage deflection (ESD) protection circuit (not illustrating) or ground connection again.
Above-mentioned known techniques can announce the 6th, 337 with reference to United States Patent (USP), No. 722 patent cases, and United States Patent (USP) announces the 6th, 566, No. 902 patent cases.Yet in known techniques, partial electrostatic stream still will impact each pixel cell (for example pixel cell 131) and integrated circuit 120.If protecting component for electrostatic discharge 133 is failed OnNow, then display floater 100 still can be damaged because of static discharge.
Summary of the invention
Purpose of the present invention just provides a kind of display panel structure, to promote static discharge resistance.
Based on above-mentioned and other purpose, the present invention proposes a kind of display panel structure that promotes static discharge resistance, comprises first substrate, pixel array region and static discharge protection path (ESD protectionpath).Pixel array region is disposed at first substrate.Dispose at least one pixel cell and at least one data channel in the pixel array region.Static discharge protection path is looped around around the pixel array region, in order to the guiding electrostatic current.
According to the display panel structure of the described lifting static discharge resistance of preferred embodiment of the present invention, more comprise a plurality of connection end points that are disposed at this first substrate surface, in order to the transmission interface of display floater to the outside to be provided.Wherein above-mentioned static discharge protection path is electrically connected at least one connection end point in each connection end point.
According to the display panel structure of the described lifting static discharge resistance of preferred embodiment of the present invention, more comprise the integrated circuit that is disposed at first substrate surface.Wherein, above-mentioned static discharge protection path is electrically connected to the electrostatic storage deflection (ESD) protection circuit of integrated circuit.
The present invention is because of disposing static discharge protection path around pixel array region, when display floater generation static discharge, the impact of static discharge can be intercepted by static discharge protection path and not influence pixel array region, is therefore promoted the static discharge resistance of display floater.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 be with " glass flip chip encapsulation " (chip-on-glass) technology be example, illustrate that tradition is at the ESD protection device of display panels.
Fig. 2 illustrates a kind of display panel structure embodiment that promotes static discharge resistance according to the present invention.
Fig. 3 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.
Fig. 4 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.
Fig. 5 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.
Fig. 6 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.
100: conventional display panels
110: substrate
120,230,330,430,530,630: integrated circuit
130,240,340,440,540,640: pixel array region
131: pixel cell
132: common lead
133: protecting component for electrostatic discharge
200,300,400,500,600: the display floater of the embodiment of the invention
210,310,410,510,610: the first substrates
220,320,420,520,620: the second substrates
250,350,450: static discharge protection path
360,660: connection end point (conductive pads)
470: the second static discharge protection path
480,580,680: electric conductor (conductive solders)
550,650: the first path of static discharge protection path
570,670: the second portion path of static discharge protection path
Embodiment
For convenient and clearly set forth spirit of the present invention and technical characterictic, below will with " glass flip chip encapsulation " (chip-on-glass) display panels of technology be example, the enforcement example of the present invention at display panels (or membrane transistor display floater) is described.The present invention should not limit its range of application with the teaching of following all embodiment.Have the knack of this skill person when visual its demand, and the present invention is applied on the display floater of any kenel, any technology.
Fig. 2 illustrates a kind of display panel structure embodiment that promotes static discharge resistance according to the present invention.Display floater 200 comprises first substrate 210, second substrate 220, integrated circuit 230, pixel array region 240 and static discharge protection path 250.In present embodiment, substrate 210 and 220 main material are glass plate, and wherein second substrate 220 has more the function of Polarizer.
Please refer to Fig. 2, dispose integrated circuit 230, static discharge protection path 250 and pixel array region 240 on the glass substrate 210.Be disposed at all electric components (except the element of pixel array region 240) on the glass substrate 210 at this with " integrated circuit 230 " expression, that is " integrated circuit 230 " is not only to be expressed as single packaged integrated circuits.Integrated circuit 230 is electrically connected to pixel array region 240, the display image in order to drive pixel array region 240.Dispose a plurality of pixel cells, data channel and scan channel (for example shown in the pixel array region 130 of Fig. 1) in the pixel array region 240, do not draw pixel cell, data channel and scan channel at this, and only represent with frame of broken lines 240.
The material of above-mentioned static discharge protection path 250 can be aluminium, aluminium compound, copper, copper compound, tin indium oxide or other electrical conductors.Static discharge protection path 250 does not electrically contact with pixel array region 240.In present embodiment, static discharge protection path 250 is electrically connected to the electrostatic storage deflection (ESD) protection circuit of integrated circuit 230.Around the static discharge protection path 250 ring pixel array zones 240, in order to the guiding electrostatic current.For example, static discharge protection path 250 is disposed at the surface of first substrate 210 along the edge.
When impacting modular display floater 200 when static discharge takes place, static can enter the housing (not illustrating) of display floater 200 and the seam crossing between first substrate 210, can impact each element on the substrate 210 then from the side.Because substrate 210 edges dispose static discharge protection path 250, so static will be intercepted by static discharge protection path 250 and can not damage other elements.Electrostatic current on the static discharge protection path 250 then can be led to next stage electrostatic storage deflection (ESD) protection circuit (not illustrating) or ground connection.
Fig. 3 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.Display floater 300 comprises first substrate 310, second substrate 320, integrated circuit 330, pixel array region 340, static discharge protection path 350 and a plurality of connection end point (conductive pads) 360.In present embodiment, substrate 310,320, integrated circuit 330 and pixel array region 340 can be identical with pixel array region 240 with substrate among Fig. 2 210,220, integrated circuit 230, so repeat no more.Connection end point 360 is disposed at first substrate, 310 surfaces, in order to the transmission interface of 300 pairs of outsides of display floater to be provided.Integrated circuit 330 is electrically connected between pixel array region 340 and each connection end point 360 among Fig. 3.Yet, in order to clearly demonstrate embodiments of the present invention, do not illustrate the connecting line between integrated circuit 330 and each connection end point 360 among Fig. 3, do not draw the connecting line between integrated circuit 330 and the pixel array region 340 yet.
Please refer to Fig. 3, static discharge protection path 350 is electrically connected at least one connection end point in the connection end point 360 in the present embodiment.Though show among Fig. 3 with first and last connection end point in the connection end point 360 and be coupled to static discharge protection path 350, haveing the knack of this skill person also can have different designs according to its demand, for example static discharge protection path 350 is electrically connected to the ground connection connection end point in the connection end point 360.
The material of above-mentioned static discharge protection path 350 can be any electrical conductor (for example aluminium, aluminium compound, copper, copper compound, a tin indium oxide etc.).In the present embodiment, pixel array region 340 does not electrically contact with static discharge protection path 350 with integrated circuit 330.In present embodiment, can static discharge protection path 350 be disposed at the surface of first substrate 310 along first substrate, 310 edges.
Usually static discharge takes place and when impacting modular display floater 300, static can enter the housing (not illustrating) of display floater 300 and the seam crossing between first substrate 310, can impact each element on the substrate 310 then from the side.When impacting modular display floater 300 when static discharge takes place and since static discharge protection path 350 around integrated circuit 330 with around the pixel array region 340, so static will be intercepted by static discharge protection path 350 and can not damage other elements.Electrostatic current on the static discharge protection path 350 then can be led to display floater 300 outsides via connection end point 360.
Below lift an execution mode more in addition according to spirit of the present invention.Fig. 4 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.Display floater 400 comprises first substrate 410, second substrate 420, integrated circuit 430, pixel array region 440, static discharge protection path 450, second static discharge protection path 470 and a plurality of electric conductor (conductive solders) 480.In present embodiment, substrate 410,420, integrated circuit 430, pixel array region 440 and static discharge protection path 450 can be identical with static discharge protection path 250 with substrate among Fig. 2 210,220, integrated circuit 230, pixel array region 240, so repeat no more.Integrated circuit 430 is electrically connected to pixel array region 440 among Fig. 4.Yet, in order to clearly demonstrate embodiments of the present invention, do not illustrate the connecting line between integrated circuit 430 and the pixel array region 440 among Fig. 4, do not draw the structure of pixel array region 440 inside yet.
Please refer to Fig. 4, second static discharge protection path 470 is disposed at second substrate 420, in order to the guiding electrostatic current.In present embodiment, can second static discharge protection path 470 be disposed at the surface of second substrate 420 along second substrate, 420 edges.Electric conductor 480 is disposed between first substrate 410 and second substrate 420, with so that static discharge protection path 450 is electrically connected to second static discharge protection path 470.The material of above-mentioned second static discharge protection path 470 can be any electrical conductor (for example aluminium, aluminium compound, copper, copper compound, a tin indium oxide etc.), and electric conductor 480 can also be any electrical conductor.In the present embodiment, pixel array region 440 does not electrically contact with static discharge protection path 450,470.When impacting modular display floater 400 when static discharge takes place, because around static discharge protection path 450, the 470 ring pixel array zones 440, so static will be intercepted by static discharge protection path 450,470 and can not damage other elements.Electrostatic current on the static discharge protection path 450,470 then can be led to next stage electrostatic storage deflection (ESD) protection circuit (not illustrating) or ground connection via the electrostatic storage deflection (ESD) protection circuit of integrated circuit 430.
Below lift an execution mode more in addition according to spirit of the present invention.Fig. 5 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.Display floater 500 comprises the first path 550 of first substrate 510, second substrate 520, integrated circuit 530, pixel array region 540, static discharge protection path, second portion path 570 and a plurality of electric conductor 580 of static discharge protection path.In present embodiment, substrate 510,520, integrated circuit 530 and pixel array region 540 can be identical with pixel array region 240 with substrate among Fig. 2 210,220, integrated circuit 230, so repeat no more.Do not illustrate the connecting line between integrated circuit 530 and the pixel array region 540 among Fig. 5, do not draw the structure of pixel array region 540 inside yet.
Electric conductor 580 is disposed between first substrate 510 and second substrate 520.With 200 parts inequality of display floater among Fig. 2, be that static discharge protection path is not all to be disposed on first substrate 510 in the display floater 500.Please refer to Fig. 5, the first path 550 of static discharge protection path is to be disposed at first substrate 510, and the second portion path 570 of static discharge protection path then is to be disposed at second substrate 520.In present embodiment, can the second portion path 570 of static discharge protection path be disposed at the surface of second substrate 520 along second substrate, 520 edges.See through the electric connection of electric conductor 580, above-mentioned first path 550 can be connected in series mutually with second portion path 570 and form static discharge protection path.First path 550 can be any electrical conductor (for example aluminium, aluminium compound, copper, copper compound, a tin indium oxide etc.) with the material in second portion path 570 in the above-mentioned static discharge protection path, and electric conductor 580 can also be any electrical conductor.
Please refer to Fig. 5, in present embodiment, pixel array region 540 does not electrically contact with static discharge protection path 550,570.When impacting modular display floater 500 when static discharge takes place, because around static discharge protection path 550, the 570 ring pixel array zones 540, so static will be intercepted by static discharge protection path 550,570 and can not damage other elements.Electrostatic current on the static discharge protection path 550,570 then can be led to next stage electrostatic storage deflection (ESD) protection circuit (not illustrating) or ground connection via the electrostatic storage deflection (ESD) protection circuit of integrated circuit 530.
Fig. 6 illustrates another embodiment of display panel structure that promotes static discharge resistance according to the present invention.Display floater 600 comprises the first path 650 of first substrate 610, second substrate 620, integrated circuit 630, pixel array region 640, static discharge protection path, second portion path 670, a plurality of connection end point 660 and a plurality of electric conductor 680 of static discharge protection path.In present embodiment, the second portion path 670 of substrate 610,620, integrated circuit 630, pixel array region 640, static discharge protection path can be identical with electric conductor 580 with the second portion path 570 of substrate among Fig. 5 510,520, integrated circuit 530, pixel array region 540, static discharge protection path with electric conductor 680, so repeat no more.
With 500 parts inequality of display floater among Fig. 5, be more connection end point 660 to be disposed at first substrate, 610 surfaces in the display floater 600, in order to the transmission interface of 600 pairs of outsides of display floater to be provided.Please refer to Fig. 6, integrated circuit 630 is electrically connected between pixel array region 640 and each connection end point 660.Yet, in order to clearly demonstrate embodiments of the present invention, do not illustrate the connecting line between integrated circuit 630 and each connection end point 660 among Fig. 6, do not draw the connecting line between integrated circuit 630 and the pixel array region 640 yet.
In present embodiment, the first path 650 of static discharge protection path is electrically connected at least one connection end point in the connection end point 660.Though show the first path 650 that is coupled to static discharge protection path with first and last connection end point in the connection end point 660 among Fig. 6, haveing the knack of this skill person also can be according to its demand and different designs be arranged, and for example the first path 650 of static discharge protection path is electrically connected to the ground connection connection end point in the connection end point 660.
Please refer to Fig. 6, in present embodiment, pixel array region 640 does not electrically contact with static discharge protection path 650,670 with integrated circuit 630.When impacting modular display floater 600 when static discharge takes place, because static discharge protection path 650,670 ring pixel arrays zone 640 is with around the integrated circuit 630, so static will and can not damaged other elements by static discharge protection path 650,670 obstructs.Electrostatic current on the static discharge protection path 650,670 then can be led to display floater 600 outsides via connection end point 660.
In sum, the present invention is because of disposing static discharge protection path around pixel array region, when display floater generation static discharge, the impact of static discharge can be intercepted by static discharge protection path and not influence pixel array region, is therefore promoted the static discharge resistance of display floater.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, thus protection scope of the present invention with claim the person of being defined be as the criterion.
Claims (15)
1. display panel structure that promotes static discharge resistance is characterized in that comprising:
One first substrate;
One pixel array region is disposed at this first substrate, wherein disposes at least one pixel cell and at least one data channel in this pixel array region; And
One static discharge protection path, it is around around this pixel array region, in order to the guiding electrostatic current.
2. according to the display panel structure of the described lifting static discharge resistance of claim 1, it is characterized in that wherein this static discharge protection path is the surface that is disposed at this first substrate, and the part path of this static discharge protection path is at least one edge that is disposed at this first substrate.
3. according to the display panel structure of the described lifting static discharge resistance of claim 1, it is characterized in that more comprising:
One second substrate is disposed at this first substrate top;
One second static discharge protection path is disposed at the avris of this second substrate, in order to the guiding electrostatic current; And
One electric conductor is disposed between this first substrate and this second substrate, with so that this static discharge protection path is electrically connected to this second static discharge protection path.
4. according to the display panel structure of the described lifting static discharge resistance of claim 3, it is characterized in that wherein this second substrate is a Polarizer.
5. according to the display panel structure of the described lifting static discharge resistance of claim 1, it is characterized in that more comprising:
One second substrate is disposed at this first substrate top; And
At least one electric conductor is disposed between this first substrate and this second substrate;
Wherein the first path of this static discharge protection path is to be disposed at this first substrate, and the second portion path of this static discharge protection path is to be disposed at this second substrate, and sees through this electric conductor and be connected in series above-mentioned first path and second portion path and form this static discharge protection path.
6. according to the display panel structure of the described lifting static discharge resistance of claim 5, it is characterized in that wherein this second substrate is a Polarizer.
7. according to the display panel structure of the described lifting static discharge resistance of claim 1, it is characterized in that more comprising:
A plurality of connection end points are disposed at this first substrate surface, in order to the transmission interface of this display floater to the outside to be provided;
Wherein this static discharge protection path is electrically connected at least one connection end point in those connection end points.
8. according to the display panel structure of the described lifting static discharge resistance of claim 1, it is characterized in that more comprising:
One integrated circuit is disposed at the surface of this first substrate;
Wherein this static discharge protection path is electrically connected to the electrostatic storage deflection (ESD) protection circuit of this integrated circuit.
9. the display panel structure of described according to Claim 8 lifting static discharge resistance is characterized in that wherein this integrated circuit more is electrically connected to this pixel array region, the display image in order to drive this pixel array region.
10. according to the display panel structure of the described lifting static discharge resistance of claim 1, it is characterized in that wherein this static discharge protection path is electrical conductor.
11., it is characterized in that wherein the material of this static discharge protection path comprises aluminium, aluminium compound, copper, copper compound and/or tin indium oxide according to the display panel structure of the described lifting static discharge resistance of claim 1.
12., it is characterized in that wherein this static discharge protection path does not electrically contact with this pixel array region according to the display panel structure of the described lifting static discharge resistance of claim 1.
13., it is characterized in that wherein this first substrate is a glass plate according to the display panel structure of the described lifting static discharge resistance of claim 1.
14., it is characterized in that wherein this display floater comprises display panels according to the display panel structure of the described lifting static discharge resistance of claim 1.
15., it is characterized in that wherein this display floater comprises the membrane transistor display floater according to the display panel structure of the described lifting static discharge resistance of claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610056988 CN101035404A (en) | 2006-03-07 | 2006-03-07 | Structure of display panel for improving the static discharge resistance |
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| CN 200610056988 CN101035404A (en) | 2006-03-07 | 2006-03-07 | Structure of display panel for improving the static discharge resistance |
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| CN101035404A true CN101035404A (en) | 2007-09-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835328A (en) * | 2010-05-01 | 2010-09-15 | 常州亿晶光电科技有限公司 | Destaticizing device for solar cell module attenuation detection equipment |
| US8031281B2 (en) | 2008-04-11 | 2011-10-04 | Chimei Innolux Corporation | Liquid crystal display having capacitors as protection elements |
| CN102547037A (en) * | 2010-12-27 | 2012-07-04 | 兄弟工业株式会社 | Image forming apparatus |
| CN103278953A (en) * | 2012-08-22 | 2013-09-04 | 厦门天马微电子有限公司 | Liquid crystal panel and display device thereof |
| CN106444181A (en) * | 2016-10-27 | 2017-02-22 | 南京华日触控显示科技有限公司 | Method for enhancing the electrostatic discharge defense ability by super twisted nematic liquid crystal display screen |
| CN107688251A (en) * | 2016-08-04 | 2018-02-13 | 三星显示有限公司 | Liquid crystal display |
| CN109696756A (en) * | 2017-10-20 | 2019-04-30 | 友达光电（昆山）有限公司 | The manufacturing method and display panel of display panel |
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2006
- 2006-03-07 CN CN 200610056988 patent/CN101035404A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8031281B2 (en) | 2008-04-11 | 2011-10-04 | Chimei Innolux Corporation | Liquid crystal display having capacitors as protection elements |
| CN101835328A (en) * | 2010-05-01 | 2010-09-15 | 常州亿晶光电科技有限公司 | Destaticizing device for solar cell module attenuation detection equipment |
| CN102547037A (en) * | 2010-12-27 | 2012-07-04 | 兄弟工业株式会社 | Image forming apparatus |
| US9049325B2 (en) | 2010-12-27 | 2015-06-02 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| CN103278953A (en) * | 2012-08-22 | 2013-09-04 | 厦门天马微电子有限公司 | Liquid crystal panel and display device thereof |
| CN107688251A (en) * | 2016-08-04 | 2018-02-13 | 三星显示有限公司 | Liquid crystal display |
| CN107688251B (en) * | 2016-08-04 | 2022-07-29 | 三星显示有限公司 | Liquid crystal display device |
| CN106444181A (en) * | 2016-10-27 | 2017-02-22 | 南京华日触控显示科技有限公司 | Method for enhancing the electrostatic discharge defense ability by super twisted nematic liquid crystal display screen |
| CN109696756A (en) * | 2017-10-20 | 2019-04-30 | 友达光电（昆山）有限公司 | The manufacturing method and display panel of display panel |
| CN109696756B (en) * | 2017-10-20 | 2021-04-09 | 友达光电（昆山）有限公司 | Display panel manufacturing method and display panel |
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Open date: 20070912 |