CN100592359C - Active array apparatus with electrostatic protection function as well as planar display - Google Patents
Active array apparatus with electrostatic protection function as well as planar display Download PDFInfo
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- CN100592359C CN100592359C CN200710096866A CN200710096866A CN100592359C CN 100592359 C CN100592359 C CN 100592359C CN 200710096866 A CN200710096866 A CN 200710096866A CN 200710096866 A CN200710096866 A CN 200710096866A CN 100592359 C CN100592359 C CN 100592359C
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Abstract
An active array device or a panel display is provided, wherein, the active array device comprises a base plate, a scan line, a data line, pixel units, an electrostatic discharge ring, a first diode, afourth diode, a second diode, and a third diode. The scan line is mounted on the base plate. The data line is mounted on the base plate and is staggered from the scan line. The electrostatic discharge ring is provided around the scan line and the data line. The positive electrodes of the first diode and fourth diode couple with the scan line, while the negative electrodes couple with the electrostatic discharge ring. The positive electrodes of the second diode and third diode couple with the electrostatic discharge ring, while the negative electrodes couple with the scan line.
Description
[technical field]
The invention relates to a kind of active array apparatus, and particularly relevant for a kind of active array apparatus of tool antistatic protection function.
[background technology]
Generally speaking, the electrostatic potential that is present in the environment or on the human body may be up to thousands of volts.In the manufacture process of active array apparatus (as LCD, organic light emitting diode display, electric paper display), if operating personnel's electrostatic current up to thousands of volts on one's body go within the active array apparatus, this static will damage thin film transistor (TFT) and its internal circuit on the active array apparatus.
For fear of the electronic component of electrostatic damage active array apparatus, traditional active array apparatus is provided with static discharge ring (Electrostatic discharge Ring usually on substrate; ESD Ring), then data line and sweep trace are passed through two diode-coupled to the static discharge ring.When static occurring on sweep trace, data line or the substrate, this static can then by static discharge ring dissipation static, be avoided the electronic component in the electrostatic breakdown pixel cell by above-mentioned two diodes conduct to the static discharge ring.
Yet in such active array apparatus,, just the static of band positive polarity or band negative polarity can't be conducted on the static discharge ring, thereby can't consume the energy of static as long as there is a diode to be destroyed; In addition, if electrostatic potential is too high, only two diodes also can't in time and effectively conduct to the static on data line and the sweep trace on the static discharge ring, thus on data line, sweep trace and the substrate remaining electrostatic energy still may destroy electronic component on the substrate.
Therefore need a kind of new active array apparatus, can effectively the static on data line and the sweep trace be conducted on the static discharge ring, avoid the electronic component on the substrate to be destroyed.
[summary of the invention]
Therefore a purpose of the present invention is providing a kind of active array apparatus exactly, can effectively the static on sweep trace or the data line be conducted on the static discharge ring, avoids the electronic component on the substrate to be destroyed.
According to one embodiment of the invention, active array apparatus comprises a substrate; The one scan line is disposed on the substrate; One data line is disposed on the substrate, and is crisscross in sweep trace; One pixel cell, coupling sweep trace and data line; At least one static discharge ring is disposed on the substrate, and in order to Xiao Mao static, this static discharge ring system is around sweep trace and data line; One first diode and one the 4th diode, the positive pole coupling sweep trace of this first diode and the 4th diode, negative pole coupling static discharge ring; And one second diode and one the 3rd diode, the positive pole coupling static discharge ring of this second diode and the 3rd diode, negative pole coupling sweep trace.
Another object of the present invention is providing a kind of flat-panel screens exactly, can effectively the static on sweep trace or the data line be conducted on the static discharge ring, avoids the electronic component on the substrate to be destroyed.
According to another embodiment of the present invention, flat-panel screens comprises a substrate; The one scan line is disposed on the substrate; One data line is disposed on the substrate, and is crisscross in sweep trace; At least one thin film transistor (TFT) is disposed on the substrate, the gate coupled sweep trace of this thin film transistor (TFT), first source/drain coupled data line; At least one static discharge ring is disposed on the substrate, and in order to Xiao Mao static, this static discharge ring system is around sweep trace and data line; One first diode and one the 4th diode, the positive pole of this first diode and the 4th diode coupling sweep trace, negative pole this static discharge ring that is coupled; One second diode and one the 3rd diode, the positive pole of this second diode and the 3rd diode coupling static discharge ring, negative pole this sweep trace that is coupled.
In sum, the static discharge ring on active array apparatus or the flat-panel screens, and can consume static effectively with several diodes of static discharge loop coupling, avoid the electronic component in active array apparatus or the flat-panel screens to be destroyed.
[description of drawings]
State with other purposes, feature, advantage and embodiment and can become apparent, appended graphic being described in detail as follows on the present invention for allowing:
Fig. 1 system illustrates the active array apparatus according to one embodiment of the invention.
[embodiment]
See also Fig. 1, it is the active array apparatus of the formula of painting according to one embodiment of the invention, for example flat-panel screens comprises substrate 100, sweep trace 101, data line 105, static discharge ring 109, a plurality of pixel cell 111, first diode 113, second diode 115, the 3rd diode 117, the 4th diode 119, the 5th diode 121, the 6th diode 123, the 7th diode 125 and the 8th diode 127.Sweep trace 101, data line 105, pixel cell 111 and static discharge ring 109 are to be disposed on the substrate 100, and pixel cell 111 is coupling sweep trace 101 and data line 105.
Sweep trace 101 and data line 105 are to be coupled to static discharge ring 109 by first diode 113, second diode 115, the 3rd diode 117, the 4th diode 119, the 5th diode 121, the 6th diode 123, the 7th diode 125 and the 8th diode 127 respectively.
The positive polar system coupling sweep trace 101 of first diode 113 and the 4th diode 119, the positive polar system coupling static discharge ring 109 of negative pole system coupling static discharge ring 109, the second diodes 115 and the 3rd diode 117, negative pole system coupling sweep trace 101.The positive polar system coupling data line 105 of the 5th diode 121 and the 8th diode 127, the positive polar system coupling static discharge ring 109 of negative pole system coupling static discharge ring 109, the six diodes 123 and the 7th diode 125, negative pole is a coupling data line 105.
If active array apparatus is a Thin Film Transistor-LCD, then comprise at least one thin film transistor (TFT) (not being shown among the figure) in the pixel cell 111, the grid system coupling sweep trace of this thin film transistor (TFT), first source/then coupling data line drains, in order in the middle of the cycle, to deposit the current potential on the data line in pixel cell 111 in one scan.
When having static on sweep trace 101 or the data line 105, these static can conduct to static discharge ring 109 by first diode 113, second diode 115, the 3rd diode 117, the 4th diode 119 and the 5th diode 121, the 6th diode 123, the 7th diode 125 and the 8th diode 127 respectively, then by static discharge ring 109 these static of Xiao Mao.Owing to the quantity of the visual static of quantity of diode on sweep trace 101 and the data line 105 increases and decreases, so a little diode energy of Xiao Mao static effectively, and effectively the static on sweep trace and the data line is conducted on the static discharge ring 109; If wherein one or two diode destroyed, static still can pass through the energy of other diodes conduct to static discharge ring ， Xiao Mao static.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; any in the technical field of the invention; have and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (8)
1. active array apparatus comprises:
One substrate;
The one scan line is disposed on this substrate;
One data line is disposed on this substrate, crisscrosses this sweep trace;
One pixel cell, this sweep trace and this data line are coupled;
At least one static discharge ring is disposed on this substrate, and in order to consume a static, this static discharge ring system is around this sweep trace and this data line, and this static discharge ring is not connected to a public electrode;
One first diode and one the 4th diode, the positive pole of this first diode and the 4th diode this sweep trace that is coupled, the negative pole of this first diode and the 4th diode this static discharge ring that is coupled; And
One second diode and one the 3rd diode, the positive pole of this second diode and the 3rd diode this static discharge ring that is coupled, the negative pole of this second diode and the 3rd diode this sweep trace that is coupled.
2. active array apparatus according to claim 1 is characterized in that, more comprises:
One the 5th diode and one the 8th diode, the positive pole of the 5th diode and the 8th diode this data line that is coupled, the negative pole of the 5th diode and the 8th diode this static discharge ring that is coupled; And
One the 6th diode and one the 7th diode, the positive pole of the 6th diode and the 7th diode this static discharge ring that is coupled, the negative pole of the 6th diode and the 7th diode this data line that is coupled.
3. active array apparatus according to claim 1 is characterized in that, this substrate is a glass substrate.
4. active array apparatus according to claim 1 is characterized in that, this substrate is a plastic substrate.
5. flat-panel screens comprises:
One substrate;
The one scan line is disposed on this substrate;
One data line is disposed on this substrate, and is crisscross in this sweep trace;
At least one thin film transistor (TFT) is disposed on this substrate, this sweep trace of the gate coupled of this thin film transistor (TFT), this data line of first source of this thin film transistor (TFT)/drain coupled;
At least one static discharge ring is disposed on this substrate, and in order to consume a static, this static discharge ring system is around this sweep trace and this data line, and this static discharge ring is not connected to a public electrode;
One first diode and one the 4th diode, the positive pole of this first diode and the 4th diode this sweep trace that is coupled, the negative pole of this first diode and the 4th diode this static discharge ring that is coupled; And
One second diode and one the 3rd diode, the positive pole of this second diode and the 3rd diode this static discharge ring that is coupled, the negative pole of this second diode and the 3rd diode this sweep trace that is coupled.
6. flat-panel screens according to claim 5 is characterized in that, more comprises:
One the 5th diode and one the 8th diode, the positive pole of the 5th diode and the 8th diode those data lines that are coupled, the negative pole of the 5th diode and the 8th diode this static discharge ring that is coupled; And
One the 6th diode and one the 7th diode, the positive pole of the 6th diode and the 7th diode this static discharge ring that is coupled, the negative pole of the 6th diode and the 7th diode those data lines that are coupled.
7. flat-panel screens according to claim 5 is characterized in that, this substrate is a glass substrate.
8. flat-panel screens according to claim 5 is characterized in that, this substrate is a plastic substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710096866A CN100592359C (en) | 2007-04-05 | 2007-04-05 | Active array apparatus with electrostatic protection function as well as planar display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710096866A CN100592359C (en) | 2007-04-05 | 2007-04-05 | Active array apparatus with electrostatic protection function as well as planar display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101281712A CN101281712A (en) | 2008-10-08 |
| CN100592359C true CN100592359C (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710096866A Active CN100592359C (en) | 2007-04-05 | 2007-04-05 | Active array apparatus with electrostatic protection function as well as planar display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107703691A (en) * | 2017-10-12 | 2018-02-16 | 惠科股份有限公司 | Array base palte |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696772A (en) * | 2005-06-15 | 2005-11-16 | 友达光电股份有限公司 | Basal plate of active element array |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696772A (en) * | 2005-06-15 | 2005-11-16 | 友达光电股份有限公司 | Basal plate of active element array |
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| CN101281712A (en) | 2008-10-08 |
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