CN1916701A - Liquid crystal display faceplate with static discharge protection - Google Patents
Liquid crystal display faceplate with static discharge protection Download PDFInfo
- Publication number
- CN1916701A CN1916701A CN 200510092443 CN200510092443A CN1916701A CN 1916701 A CN1916701 A CN 1916701A CN 200510092443 CN200510092443 CN 200510092443 CN 200510092443 A CN200510092443 A CN 200510092443A CN 1916701 A CN1916701 A CN 1916701A
- Authority
- CN
- China
- Prior art keywords
- circuit ring
- protection circuit
- viewing area
- ring
- display panels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 46
- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000007688 edging Methods 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 24
- 238000013461 design Methods 0.000 claims description 22
- 230000007547 defect Effects 0.000 claims description 14
- 239000010409 thin film Substances 0.000 claims description 14
- 238000009825 accumulation Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 12
- 230000008439 repair process Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 18
- 230000005611 electricity Effects 0.000 description 14
- 239000006185 dispersion Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 9
- 238000003491 array Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010615 ring circuit Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
A liquid crystal display face-plate with protection of static discharge is prepared as setting internal protective circuit ring of short circuit type around periphery of display region and external protective circuit ring of short circuit type around periphery of internal protective circuit ring, connecting external protective circuit ring to display region and internal protective circuit ring, connecting internal protective circuit ring to display region through external protective circuit ring, enabling to connect internal protective circuit ring to be a patch circuit after edging process of face plate is finalized.
Description
Technical field
The invention relates to a kind of display panels, and particularly a kind of display panels with electro-static discharge protection function.
Background technology
At thin film transistor (TFT) (Thin-Film Transistor; TFT) in the display panels manufacturing process of Qu Donging, regular meeting has the phenomenon of buildup of static electricity to produce, and because the demand of display panels, select the glass substrate of insulating property (properties) for use, the buildup of static electricity amount that causes producing in manufacturing process can't be eliminated, thereby (the Electro-Static Discharge that causes static discharge easily; ESD) problem causes assembly impaired, and has significantly reduced the yields of liquid crystal display assembly.
Because in the thin film transistor (TFT) manufacturing process, some processing environments can produce the accumulation of static, as: chemical vapor deposition (Chemical Vapor phase Deposition; CVD), the relevant processing procedure of plasmas such as sputter (sputtering) or dry-etching.In addition, also have some in the process of processing procedure conversion or board transport, also have the generation of static electricity that comes from the external world.Because the glass substrate of insulation can't be about to buildup of static electricity certainly and be eliminated, therefore, conductor part on assembly and panel will form a tangible potential difference, in case generation static discharge, the fiduciary level (reliability) that high voltage that moment produces or high electric current then can cause assembly and circuit reduces, or even the permanent damage of assembly and circuit.
Therefore, the Electrostatic protection or the improvement of electrostatic breakdown problem all are protection assembly and the important topic that promotes the product yields.Generally speaking, can be reduced or isolated at static source, reaching the probability that reduces generation of static electricity, the equipment that for example adopts some to destatic, or on process conditions and board state, improve.But this kind method only can reduce the generation of static by the control to the static source, still can't avoid the problem of buildup of static electricity fully, and can't solve the problem of static discharge fully.Therefore, on the circuit design of panel, the circuit design of some tool electro-static discharge protection functions is set often, to reach the purpose of assembly protection.
Be mainly used in the circuit design of the preventing electro-static discharge on the liquid crystal two-d display panel at present, it is the neighboring area beyond the active viewing area on panel, the protection circuit ring of one ring-type short-circuit type (short-ring) is set, disperse to accumulate on the static content in the viewing area on the panel in order to conducting, prevent the localized accumulated of static and avoid the generation of static discharge.Wherein, though if the resistance value of protection circuit ring then disperses the ability of accumulation static then high more, the problem that causes signal to disturb easily more little.Therefore, the design of existing panel periphery protection circuit ring still has limit for the dispersion effect of the buildup of static electricity amount in the viewing area.If can design the better protection circuit ring structure of an electrostatic discharge protective effect, the manufacturing of display panels will be helped quite at display panels.
Summary of the invention
One of purpose of the present invention is at the display panels that a kind of tool electro-static discharge protection function is provided, and has the ability that disconnection defect is repaired simultaneously, makes the buildup of static electricity on the display panels can be switched on dispersion effectively, and reduces the injury of static discharge; In addition, more the design and the repairing circuit of electrostatic discharge protective can be effectively integrated, to reduce the influence of configuration the indication range and the quality of viewing area.
According to above-mentioned purpose of the present invention, a kind of display panels of tool electro-static discharge protection function is proposed.The present invention utilizes the periphery of viewing area on panel that at least two short-circuit type protection circuit rings are set, to reach the conducting dispersion effect of good accumulation static.Wherein, be designed to directly not link to each other, but utilize exterior protection circuit ring, to be electrical connected logical with the viewing area near the panel outer rim with the viewing area structure near the internal Protection circuit ring of viewing area.When panel via edging lead angle processing procedure, with after the exterior protection circuit ring excision, the internal Protection circuit ring promptly loses electrical communication with the viewing area, and is transformed into repairing circuit, repairs in order to the disconnection defect that carries out in the viewing area.
According to a preferred embodiment of the present invention, be on a display panels, the position near the panel outer rim is provided with at least two short-circuit type protection circuit rings, is surrounded on the periphery of viewing area.Wherein, short-circuit type protection circuit ring comprises at least one internal Protection circuit ring, and at least one exterior protection circuit ring.The internal Protection circuit ring is the outer fringe position that is positioned near the viewing area, and the internal Protection circuit ring respectively with panel on data circuit and trace wiring cross arrangement, but all be positioned at Different Plane, and directly be not connected with the viewing area structure.In addition, the exterior protection circuit ring is the periphery that is positioned at the internal Protection circuit ring, position near the panel outer rim, and the exterior protection circuit ring electrically communicates with viewing area and internal Protection circuit ring simultaneously, form a short circuit connected state, so that result from buildup of static electricity in the viewing area in the panel manufacture process, can be via the electrical communication characteristic of exterior protection circuit ring, and conducting simultaneously is dispersed on exterior protection circuit ring and the internal Protection circuit ring.
The exterior protection circuit ring can be after display panel be finished, and utilizes edging lead angle processing procedure and cut, and removes the short circuit connected state in the viewing area.And, after the exterior protection circuit ring is removed, the internal Protection circuit ring promptly lose with the viewing area in electrical connectivity, and then change repairing circuit into, can cooperate the laser processing procedure, the circuit disconnection defect in the viewing area is repaired.
Wherein, the exterior protection circuit ring can be by being connected with data circuit or trace wiring, and be communicated with characteristic with the viewing area electric property.In addition, also comprise a plurality of protection assemblies on the display panel, between internal Protection circuit ring and exterior protection circuit ring, disturb in order to anti-stop signal.The protection component design is on the communication path of exterior protection circuit ring and viewing area, and that while and exterior protection circuit ring and viewing area are electrical connected is logical, and in panel edging lead angle processing procedure, is removed together with the exterior protection circuit ring.
Because, use the display panels of tool electrostatic discharge protective of the present invention, can pass through many short-circuit type protection circuit rings, and increase the dispersion path of accumulating static in the panel processing procedure, make display panel have better static discahrge protection effect.In addition,, make the internal Protection circuit ring before and after edging lead angle processing procedure, have the function of electrostatic discharge protective and repairing circuit respectively also by the structural design of internal Protection circuit ring.
Therefore, display panels of the present invention, not only has good electro-static discharge protection function, with the situation of effective reduction static discharge to the assembly infringement, more electrostatic dispersion path and repairing circuit can be combined into the same line road, with under the situation that does not influence viewing area arrangement space and display quality, reach the purpose of repair break lines defective in addition.
So by display panels design of the present invention, not only effectively avoid the harm of static discharge, increase the effect of defect mending more simultaneously, and significantly promoted the product yields and the fiduciary level of display module.
Description of drawings
For above-mentioned feature of the present invention, method, purpose and advantage can be become apparent, conjunction with figs. is illustrated as follows:
Fig. 1 is the structure of arrays schematic top plan view according to the display panels of the present invention's first preferred embodiment;
Fig. 2 is according to the present invention's first preferred embodiment, the structure of arrays schematic top plan view of the display panels after edging is handled;
Fig. 3 is the protection circuit ring portion part structure enlarged diagram according to the present invention's first preferred embodiment; And
Fig. 4 is for looking synoptic diagram on the structure of arrays according to the display panels of the present invention's second preferred embodiment.
Description of reference numerals:
100,400: display panel
101: thin film transistor (TFT)
102,202,402: data circuit
104,204,404: trace wiring
106,306,406,407: the internal Protection circuit ring
108,308,408: the exterior protection circuit ring
109,309,409: the protection assembly
110,410: the zone
130: dashed region
201,203,205,207,209: the position
220: signal
311: the gate metal
312: source/drain metal
314: pixel electrode
320: contact window
Embodiment
The invention provides a kind of tool static discharge (Electro-Static Discharge; ESD) display panels of safeguard function, utilization is at the viewing area outer fringe position, many ring-type short-circuit type (short-ring) the protection circuit rings that are electrically connected are set, in order to improve the dispersion effect of accumulation static, wherein, the design of part protection circuit ring is connected with the viewing area, and another protection circuit ring does not partly then link to each other with the viewing area structure.In addition, circuit ring is provided with the protection assembly (guard) that can prevent that stop signal interferes with each other, to reduce circuit ring to the line signal interference cases in the viewing area.At last; utilize display panel to make the edging processing procedure of back segment; can will be communicated in the protection circuit ring and the excision of protection assembly of viewing area; short circuit phenomenon in protection circuit ring and the viewing area is disappeared; protection circuit ring remaining on the panel then is transformed into repairing circuit (repair line); laser processing procedure in the cooperation is in order to repair the circuit disconnection defect in the viewing area.
Below will be described in detail method of the present invention with embodiment:
Embodiment 1
The invention discloses a kind of display panels circuit structure design with static discahrge protection effect.Respectively with reference to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structure of arrays schematic top plan view according to the display panels of the present invention's first preferred embodiment, Fig. 2 is the structure of arrays schematic top plan view of the display panels of edging after handling, and Fig. 3 is protection circuit ring portion part structure enlarged diagram of first preferred embodiment of Fig. 1, is the enlarged diagram in the dashed region 130 among Fig. 1.
With reference to Fig. 1, on a display panels 100, zone 110 is viewing area with picture element array, and data circuit 102 and trace wiring 104 then intersect controls interior each thin film transistor (TFT) (the Thin Film Transistor in viewing area 110; TFT) 101 switch behavior is with the picture element show state in the control viewing area 110.The surrounding zone of the present invention outside viewing area 110 is provided with the protection circuit ring of two ring-type short-circuit types, is respectively the internal Protection circuit ring 106 near viewing area 110 peripheries, and near an exterior protection circuit ring 108 of panel outer rim.
Internal Protection circuit ring 106 is designed to directly not be connected with viewing area 110 inner structures, but is connected with exterior protection circuit ring 108.And internal Protection circuit ring 106 respectively with data circuit 102, and trace wiring 104 cross arrangements are positioned at Different Plane each other, and do not contact.108 of exterior protection circuit rings are designed to link data circuit 102 or trace wiring 104, and are connected with 110 inside, viewing area, make the viewing area 110 inner short circuit connected states that form.
In addition; between internal Protection circuit ring 106 and exterior protection circuit ring 108; all be provided with and be connected each data circuit 102 or connect protection assembly 109 on each trace wiring 104; in order to avoid the signal between the circuit to disturb; protection assembly 109 is designed to the thin film transistor switch assembly and forms; for example can constitute a protection assembly by two thin film transistor (TFT)s, and protection assembly 109 and be connected with exterior protection circuit ring 108.
Wherein, be present in the buildup of static electricity amount of 110 inside, viewing area, can pass through data circuit 102 and trace wiring 104, disperse to be sent on the exterior protection circuit ring 108 through overprotection assembly 109.And, utilize exterior protection circuit ring 108 and the logical design of being electrical connected of internal Protection circuit ring 106 again, and make the buildup of static electricity amount of 110 inside, viewing area also can disperse in addition more simultaneously to be sent on the internal Protection circuit ring 106.
When panel completes; panel periphery need carry out an edging lead angle processing procedure, and the then exterior protection circuit ring 108 of comparatively close display panel 100 outer rims, and protection assembly 109 can be via edging lead angle processing procedure; excised, and the short circuit connected state in the releasing script viewing area 110.At this moment, only be left the periphery that internal Protection circuit ring 106 is present in viewing area 110 on the panel.
With reference to Fig. 2, it is the structure of arrays schematic top plan view via the display panels after the excision of edging lead angle processing procedure.Wherein, internal Protection circuit ring 106, because the removing of exterior protection circuit ring 108, and lose the characteristic that electrically is connected with 110 inside, viewing area.The internal Protection circuit ring 106 of this moment no longer has the ability of disperseing buildup of static electricity, and is converted into a repairing circuit.
If disconnection defect occurs in the viewing area 110, then can utilize internal Protection circuit ring 106 to repair.As shown in Figure 2, if on the data circuit 202, when (open) defectives are broken in 201 appearance in the position, then with internal Protection circuit ring 106 and data circuit 202 in the position 203 and position 205, repair with the laser processing procedure, make originally disjunct internal Protection circuit ring 106 and data circuit 202,203 are connected with position 205 in the position, and form conducting state.Then, again with internal Protection circuit ring 106 in the position 207 and position 209, cut off with laser.
So, originally be sent to the signal 220 on the data circuit 202, still can be by the short circuit communication path of internal Protection circuit ring 106 with data circuit 202, be sent to the other end of broken string position 201 by an end that produces broken string position 201 on the data circuit 202, make and occur broken string other regional show state in addition on the viewing area, the repairing circuit that can form via internal Protection circuit ring 106, and be not subjected to the influence of disconnection defect.In addition,, also can be used as repairing circuit by internal Protection circuit ring 106 equally, the repairing that cooperates laser to break if when the problem of disconnection defect occurring on the one scan circuit 204 in office.
About the practical structures of protection circuit ring of the present invention, then can be with reference to shown in Figure 3, Fig. 3 is the inner structure schematic top plan view of the dashed region 130 among Fig. 1.Wherein exterior protection circuit ring 308 can be made of the multiple layer metal layer, gate metal 311, source/drain metal 312 and pixel electrode metal 314 three-layer metals that for example can directly utilize display module to make are formed jointly, the three-layer metal layer is positioned at Different Plane, source/drain metal 312 is positioned at gate metal 311 tops, and 314 of pixel electrodes are positioned at the top of source/drain metal, and three-layer metal then is connected to each other with contact hole 320 (contact hole) each other.So, can significantly increase exterior protection circuit ring 308 and supply with the accumulation path that static disperseed, thereby improve the effect that the electrostatic conducting of accumulating is disperseed.
In addition; protection assembly 309 (shown in the dotted line) then is made up of two thin film transistor (TFT)s; because exterior protection circuit ring 308; it is to be connected with trace wiring and data circuit in the panel; therefore for fear of when carrying out the panel electrical detection; the transmission of data-signal can be subjected to the signal interference that exterior protection circuit ring 308 causes, so, also be provided with two thin film transistor (TFT)s as protection assembly 309.As for internal Protection circuit ring 306, then be the good single-layer metal circuit of electric conductivity, for example can directly use source/drain metal 312 to give graphical definition and go out.
Two thin film transistor (TFT)s in the protection assembly 309 are to be connected with the data circuit or the trace wiring of inside, viewing area by gate metal 311.308 source/drain metals 312 of exterior protection circuit ring by the thin film transistor (TFT) in the protection assembly 309; and electrically be connected with inside, viewing area; in addition; exterior protection circuit ring 308 can pass through contact hole 320 again again; and utilize source/drain metal 312, to be connected with internal Protection circuit ring 306.Therefore, can form the short-circuit structure state that exterior protection circuit ring 308, protection assembly 309, internal Protection circuit ring 306 and inside, viewing area electrically are connected.So the conducting simultaneously of the static content of accumulation is dispersed on exterior protection circuit ring 308 and the internal Protection circuit ring 306 in the viewing area, and more effectively reduce the situation generation of static discharge.
After panel completes; utilize the fabrication process of panel edging lead angle; directly exterior protection circuit ring 308 and protection assembly 309 are excised simultaneously; short circuit connecting state in releasing and the viewing area; only keep the internal Protection circuit ring 306 that loses electrical communication with the viewing area, with usefulness as repairing circuit.
In addition, except above-mentioned exterior protection circuit ring and two short circuit cyclic formulas of internal Protection circuit ring circuit design, also protection circuit ring periphery externally, be between exterior protection circuit ring and the panel outer rim, the one or more short circuit cyclic formula protection circuit ring that is electrical connected with exterior protection circuit ring or viewing area is set again, to improve the accumulation electrostatic dispersion effect in the counter plate viewing area more.
By the structural design among the first above-mentioned embodiment, owing to increased the protection circuit number of rings order of viewing area periphery, the path of accumulation electrostatic dispersion conducting increased, therefore, can more effectively disperse the buildup of static electricity amount that produces in the panel processing procedure, and the incidence and the destruction of significantly reducing static discharge.
In addition, also pass through the link structure design of internal Protection circuit ring and exterior protection circuit ring, make panel when edging lead angle processing procedure carries out, can be directly because of excision exterior protection circuit ring, and remove the short circuit connected state of outside, internal Protection circuit ring and viewing area inner assembly simultaneously, finish a complete display panel assembly.
And after panel was handled via edging, the internal Protection circuit ring that loses the electrical communication attitude with the viewing area then was transformed into a repairing circuit, can be used to repair the disconnection defect in the viewing area.Not only reach the purpose of correction of the defect in addition, more thereby saved the space that needs on panel, additionally be provided with again repairing circuit, avoid causing because of occupying more panel layout (layout) space, and reduced actual displayable region area.
Embodiment 2
The invention discloses the display panels circuit structure design that another kind has static discahrge protection effect.Utilize three protection circuit rings to be arranged at the viewing area periphery, and reach better electrostatic dispersion effect and broken line repairing effect simultaneously.
With reference to Fig. 4, Fig. 4 is the structure of arrays schematic top plan view according to the display panels of the present invention's second preferred embodiment, design as first embodiment, on a display panels 400, zone 410 is viewing area with picture element array, and data circuit 402 and trace wiring 404 then intersect controls each interior picture element show state of viewing area 410.The surrounding zone of the present invention outside viewing area 410, the protection circuit ring of three ring-type short-circuit types is set, be respectively an internal Protection circuit ring 406 of close viewing area 410 peripheries, an and exterior protection circuit ring 408 of close panel outer rim, simultaneously, also has another internal Protection circuit ring 407 between exterior protection circuit ring 408 and internal Protection circuit ring 406.Wherein, exterior protection circuit ring 408 is designed to link data circuit 402 or trace wiring 404 equally, and electrically be connected with the inside of viewing area 410, but internal Protection circuit ring 406 and internal Protection circuit ring 407 then all are designed to not be connected with the inner structure of viewing area 410.
In addition; externally between protection circuit ring 408 and the internal Protection circuit ring 407; then be provided with and be connected each data circuit 402 or connect protection assembly 409 on each trace wiring 404; disturb in order to the signal between the protection circuit, protection assembly 409 is designed to be made of two thin film transistor (TFT)s.Wherein, protection assembly 409 respectively with exterior protection circuit ring 408, and form the electrical communication states in the viewing area 410, can prevent exterior protection circuit ring 408 for data circuit 402, or trace wiring 404 causes transmission signals to disturb.Simultaneously, exterior protection circuit ring 408 also is designed to the independent electrical communication of difference to internal Protection circuit ring 407 and internal Protection circuit ring 406, but internal Protection circuit ring 407 and internal Protection circuit ring 406 then do not link to each other each other mutually.
So, be present in the buildup of static electricity amount of 410 inside, viewing area, can pass through data circuit 402 and trace wiring 404, and disperse simultaneously to reach on exterior protection circuit ring 408, internal Protection circuit ring 406 and another internal Protection circuit ring 407.
At last, when panel completes,, utilize panel edging lead angle processing procedure, will excise near the exterior protection circuit ring 408 and the protection assembly 409 of panel outer rim then as first embodiment, and the short circuit connecting state of releasing and 410 inside, viewing area.Simultaneously, internal Protection circuit ring 406 and internal Protection circuit ring 407 are also thereby lose electrical communication with viewing area 410.
Internal Protection circuit ring 406 and internal Protection circuit ring 407 originally, after through edging lead angle processing procedure, all be transformed into two repairing circuits, cooperate the laser preparing processing procedure, as the mode of first embodiment, can repair the disconnection defect of 410 inside, viewing area.
Practical structures about the protection circuit ring of second embodiment, then as first embodiment, wherein exterior protection circuit ring 408 can be made of the multiple layer metal layer, for example can directly utilize gate metal, source/drain metal and pixel electrode metal three-layer metal to form jointly, the three-layer metal layer is positioned at Different Plane, then utilize contact hole to be connected to each other each other, to increase the effect of exterior protection circuit ring to the electrostatic conducting dispersion of accumulation.In addition, internal Protection circuit ring 406 can utilize source/drain metal to make and form, and internal Protection circuit ring 407 then utilizes the pixel electrode metal to make and forms.
Because the design of second embodiment by the quantity increase of protection circuit ring, increases the dispersion path of accumulation static, and has more effectively improved the dispersion effect of accumulation static, reaches better static discahrge protection effect.In addition, by the design of two internal Protection circuit rings, make the edging processing procedure after, the circuit ring quantity that can keep and be converted to repairing circuit increases, thereby also will help more the circuit disconnection defect in the viewing area is repaired, and the actual effect of lifting defect mending.
By the embodiment of the invention described above as can be known, use method of the present invention and can get one and have the display panels of good electro-static discharge protection function, and significantly promote the product yields and the fiduciary level of display assembly.And use method of the present invention, can be under the process conditions that does not influence general display panel, utilize the design of panel periphery configuration, only do the partly design and the variation of pattern definition, can form one and have good static discahrge protection effect simultaneously, and the protection circuit ring structure of the function of repairing circuit.Not only increase the quantity of ESD protection circuit ring, the effect of electrostatic dispersion is promoted, effectively reduce the impaired situation of assembly, more electrostatic discharge protective can be combined with repairing circuit, and under the condition that does not influence arrangement space in the viewing area and display characteristic, reach the effect that display module is made yields and fiduciary level lifting simultaneously.
Though the present invention with embodiment openly as above; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; all can do various changes and modification, so protection scope of the present invention should be with being as the criterion that claims were defined.
Claims (10)
1. the display panels of a tool electrostatic discharge protective is characterized in that, comprises at least:
One viewing area;
At least one internal Protection circuit ring be surrounded on the periphery of viewing area, and the internal Protection circuit ring is not connected directly with the viewing area; And
At least one exterior protection circuit ring, contiguous panel outer fringe position and be surrounded on the periphery of internal Protection circuit ring, and be electrical connected logical with viewing area and internal Protection circuit ring respectively, form a short circuit connected state, wherein, the internal Protection circuit ring is electrical connected logical via the exterior protection circuit ring with the viewing area, make the accumulation static that results from the viewing area, conducting simultaneously is dispersed on external circuit ring and the internal circuit ring.
2. display panels as claimed in claim 1 is characterized in that, described viewing area is the picture element array district that is driven by a plurality of thin film transistor (TFT)s.
3. display panels as claimed in claim 1 is characterized in that, described internal Protection circuit ring respectively with each data circuit and each trace wiring cross arrangement, and all be positioned at Different Plane, do not contact each other.
4. display panels as claimed in claim 1 is characterized in that, described internal Protection circuit ring is the short-circuit type circuit ring by at least one metal conducting layer constituted.
5. display panels as claimed in claim 1 is characterized in that, described exterior protection circuit ring is the short-circuit type circuit ring by single metal conducting layer or a plurality of metal conducting layer constituted.
6. display panels as claimed in claim 5 is characterized in that each metal conducting layer is connected by a plurality of contact windows.
7. display panels as claimed in claim 1, it is characterized in that, described exterior protection circuit ring is to be removed in a panel edging processing procedure, and removes the short circuit connection attitude in the viewing area, and and then makes the internal Protection circuit lose electrical communication with the viewing area.
8. display panels as claimed in claim 7 is characterized in that, described internal Protection circuit ring is transformed into a repairing circuit, cooperates the laser processing procedure, in order to repair the disconnection defect in the viewing area.
9. display panels as claimed in claim 1 is characterized in that, also comprises a plurality of protection assemblies between described internal Protection circuit ring and the exterior protection circuit ring, disturbs in order to anti-stop signal.
10. display panels as claimed in claim 9; it is characterized in that; described protection assembly is that design is on each communication path of viewing area and exterior protection circuit ring; and be electrical connected logical with viewing area and exterior protection circuit ring; and can in a panel edging processing procedure, be removed, and lose electrical communication with the viewing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100924439A CN100442111C (en) | 2005-08-16 | 2005-08-16 | Liquid crystal display faceplate with static discharge protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100924439A CN100442111C (en) | 2005-08-16 | 2005-08-16 | Liquid crystal display faceplate with static discharge protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1916701A true CN1916701A (en) | 2007-02-21 |
| CN100442111C CN100442111C (en) | 2008-12-10 |
Family
ID=37737724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100924439A Expired - Fee Related CN100442111C (en) | 2005-08-16 | 2005-08-16 | Liquid crystal display faceplate with static discharge protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100442111C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654699A (en) * | 2011-09-29 | 2012-09-05 | 北京京东方光电科技有限公司 | Array substrate and line defect repair method |
| CN101369079B (en) * | 2007-08-15 | 2013-12-11 | 群创光电股份有限公司 | LCD panel and LCD using the same |
| CN105097785A (en) * | 2014-05-09 | 2015-11-25 | 群创光电股份有限公司 | Display panel device with multiple electrostatic discharge rings |
| CN107505788A (en) * | 2017-09-19 | 2017-12-22 | 惠科股份有限公司 | Touch control display device |
| CN107561758A (en) * | 2017-09-19 | 2018-01-09 | 惠科股份有限公司 | Touch control display device |
| CN107561760A (en) * | 2017-09-19 | 2018-01-09 | 惠科股份有限公司 | Embedded touch display device |
| CN109496280A (en) * | 2016-07-28 | 2019-03-19 | 堺显示器制品株式会社 | Liquid crystal display panel and display device |
| CN111103718A (en) * | 2020-01-14 | 2020-05-05 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2023279456A1 (en) * | 2021-07-09 | 2023-01-12 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0149309B1 (en) * | 1995-09-06 | 1998-10-15 | 김광호 | Lcd with repair line |
| CN1145839C (en) * | 1995-10-03 | 2004-04-14 | 精工爱普生株式会社 | Active matrix substrate |
| JPH10288950A (en) * | 1997-04-14 | 1998-10-27 | Casio Comput Co Ltd | Liquid crystal display device |
| JP2000019556A (en) * | 1998-06-29 | 2000-01-21 | Hitachi Ltd | Liquid crystal display device |
| JP2002023191A (en) * | 2000-07-04 | 2002-01-23 | Casio Comput Co Ltd | Active matrix type liquid crystal display element |
-
2005
- 2005-08-16 CN CNB2005100924439A patent/CN100442111C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369079B (en) * | 2007-08-15 | 2013-12-11 | 群创光电股份有限公司 | LCD panel and LCD using the same |
| CN102654699A (en) * | 2011-09-29 | 2012-09-05 | 北京京东方光电科技有限公司 | Array substrate and line defect repair method |
| CN105097785A (en) * | 2014-05-09 | 2015-11-25 | 群创光电股份有限公司 | Display panel device with multiple electrostatic discharge rings |
| CN109496280A (en) * | 2016-07-28 | 2019-03-19 | 堺显示器制品株式会社 | Liquid crystal display panel and display device |
| WO2019056664A1 (en) * | 2017-09-19 | 2019-03-28 | 惠科股份有限公司 | Touch control display device |
| CN107505788B (en) * | 2017-09-19 | 2020-03-06 | 惠科股份有限公司 | Touch control display device |
| CN107561758A (en) * | 2017-09-19 | 2018-01-09 | 惠科股份有限公司 | Touch control display device |
| WO2019056665A1 (en) * | 2017-09-19 | 2019-03-28 | 惠科股份有限公司 | Embedded-type touch control display device |
| CN107505788A (en) * | 2017-09-19 | 2017-12-22 | 惠科股份有限公司 | Touch control display device |
| WO2019056663A1 (en) * | 2017-09-19 | 2019-03-28 | 惠科股份有限公司 | Touch control display device |
| CN107561758B (en) * | 2017-09-19 | 2020-03-06 | 惠科股份有限公司 | Touch control display device |
| CN107561760A (en) * | 2017-09-19 | 2018-01-09 | 惠科股份有限公司 | Embedded touch display device |
| US11199919B2 (en) | 2017-09-19 | 2021-12-14 | HKC Corporation Limited | In-cell touch display device |
| US10990212B2 (en) | 2017-09-19 | 2021-04-27 | HKC Corporation Limited | Touch display device |
| US11163408B2 (en) | 2017-09-19 | 2021-11-02 | HKC Corporation Limited | Touch display device |
| CN111103718A (en) * | 2020-01-14 | 2020-05-05 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN111103718B (en) * | 2020-01-14 | 2022-07-12 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2023279456A1 (en) * | 2021-07-09 | 2023-01-12 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100442111C (en) | 2008-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1916701A (en) | Liquid crystal display faceplate with static discharge protection | |
| CN102012593B (en) | array substrate of liquid crystal display device | |
| US7304351B2 (en) | Active matrix substrate | |
| CN1680861A (en) | Tft LCD, laminated capacitor and forming method thereof | |
| US11430738B2 (en) | Light-emitting diode display and method for producing the same | |
| CN101078823A (en) | Liquid crystal display and fabricating method thereof | |
| CN105355633A (en) | Method for fabricating array substrates and array substrates | |
| CN1142057A (en) | Array base plate, liquid-crystal displaying device of thin-film transistor, and method for production of said base plate | |
| US20060038175A1 (en) | Pixel structure | |
| CN110827728B (en) | Display panel and display device | |
| CN103296021A (en) | TFT array substrate | |
| CN104900633A (en) | Array substrate fabrication method, array substrate and display device | |
| US7026648B2 (en) | Pixel structure | |
| CN1812109A (en) | Tft array panel and fabricating method thereof | |
| CN109712991B (en) | Display panel and manufacturing method thereof | |
| US7053977B2 (en) | Laser repair structure of liquid crystal display device and method thereof | |
| CN108257974B (en) | Array substrate, display device and method for preparing array substrate | |
| CN1802079A (en) | Flat panel display (FPD) and method of fabrication | |
| CN111834381B (en) | Array substrate, display panel, display device and manufacturing method of array substrate | |
| CN1877844A (en) | Repairing structure and active component array substrate | |
| JP2012173621A (en) | Array substrate and display device | |
| CN100524779C (en) | Thin film transistor module base board and its making method | |
| CN1696772A (en) | Basal plate of active element array | |
| US20070131989A1 (en) | Thin film transistor array substrate for reducing electrostatic discharge damage | |
| CN1649110A (en) | Forming method for thin film transistor element with static discharge protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NO.82 CO., LTD. OF INTELLECTUAL VENTURES FUND Free format text: FORMER OWNER: CHINA PROJECTION TUBE CO., LTD. Effective date: 20120202 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120202 Address after: Delaware Patentee after: Gao Zhi invention fund eighty-second LLC Address before: Taiwan, Taipei, China Zhongshan North Road three paragraph 22 Patentee before: Chunghwa Picture Tubes, Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 |