CN104200767B - Array base palte, display device and its detection method - Google Patents
Array base palte, display device and its detection method Download PDFInfo
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- CN104200767B CN104200767B CN201410479501.2A CN201410479501A CN104200767B CN 104200767 B CN104200767 B CN 104200767B CN 201410479501 A CN201410479501 A CN 201410479501A CN 104200767 B CN104200767 B CN 104200767B
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Abstract
The invention discloses a kind of array base palte, display device and its detection method.Array base palte, including：One substrate, including a viewing area and with non-display area, multiple terminal areas are formed in the non-display area, the terminal area is disposed with a plurality of signal terminal and a plurality of non-signal terminal, non-signal terminal described in one is disposed adjacent with a signal terminal to be detected, and the signal terminal to be detected is electrically connected with the adjacent non-signal terminal.The present invention can obtain the crimping impedance of the terminal to be detected, so as to accurately, rapidly judge that terminal compression joint is bad by the setting signal terminal on the flexible PCB and/or printed circuit board (PCB) of display device and the corresponding test point of non-signal terminal.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of array base palte, display device and its detection method.
Background technology
At present, electro-optical display device has array base palte, counter substrate and positioned at array base as liquid crystal display panel
Display medium composition between plate and counter substrate.Wherein, signal wire is provided with the viewing area of array base palte, for example, is counted
According to signal wire and gated sweep signal wire etc., terminals corresponding with signal wire are provided with the non-display area of array base palte
Son, signal wire is connected by periphery cabling with corresponding binding post.
Fig. 1 is display device floor map in the prior art.Wherein, flexible PCB 12 is by different side's conducting film, with
The terminal of the side of array base palte 11 realizes connection physically and conducting electrically.Different side's conducting film is included in film-form, height absolutely
In the solid of edge, conducting particles is equably spread, after heating pressurization, the phase between flexible PCB 12 and array base palte 11
Electrode is realized and is electrically connected, and with insulating properties between adjacent electrode, similarly, flexible PCB 12 is led by different side
Electrolemma, connection physically and conducting electrically are realized with the terminal of the side of printed circuit board (PCB) 13.
In the prior art, after terminal compression joint, typically see whether to offset by Mark.Or by array base palte terminal region
Domain, outermost Dummy terminals (Dummy terminals are dead end, the no signal in Display panel) only retain ITO layer, because ITO
It is transparent, so it is observed that the distribution situation of conducting particles, further checks crimping result.But the above method
Only it is presentation, non-specific numerical value, it is difficult to suitable for processing procedure management and control and failure analysis.
The present invention proposes a kind of design simple and easy to apply and operation technique, and throughput pressure measurement connects impedance, carrys out detection terminal pressure
Connect situation.
The content of the invention
In view of this, the present invention provides a kind of array base palte, display device and its detection method, special by array base palte side
Other terminal design, after making terminal compression joint complete, can directly measure crimping impedance, so as to check crimping situation.
For up to above-mentioned or other purposes, one embodiment of the invention provides a kind of array base palte, including：One substrate, including
One viewing area and with non-display area, multiple terminal areas, the terminal area arrangement are formed in the non-display area
There are a plurality of signal terminal and a plurality of non-signal terminal, non-signal terminal described in one is disposed adjacent with a signal terminal to be detected, institute
Signal terminal to be detected is stated to electrically connect with the adjacent non-signal terminal.
Further, each terminal area is divided into the first sub- terminal area, the second sub- terminal area, the 3rd sub- end
Subregion, and the first sub- terminal area, the 3rd sub- terminal area are distributed in the described second sub- terminal area both sides.
Further, the described first sub- terminal area outside, the first sub- terminal area and the described second sub- terminal region
Domain, the second sub- terminal area on the outside of the 3rd sub- terminal area, the 3rd sub- terminal area with being provided with non-signal
Terminal.
Further, the first metal layer is formed on the substrate, and the first metal layer includes the signal end subgraph
Case；Insulating film pattern is formed on the first metal layer；Re-form semiconductor conductive pattern, formed the non-signal terminal with
And cover the signal terminal.
Further, the signal terminal to be detected passes through semiconductor conductive pattern with the adjacent non-signal terminal
And/or metal pattern electrical connection.
For up to above-mentioned or other purposes, another embodiment of the present invention additionally provides a kind of display device, including：Display surface
Plate, flexible PCB and printed circuit board (PCB)；The display panel include above-described embodiment described in array base palte and and its
Display medium between the counter substrate and sandwiched and the array base palte and the counter substrate that are oppositely arranged；The flexibility
The electrode of side and the terminal of the terminal area of the corresponding array base palte are corresponding by different side's conducting film on circuit board
Crimping；The electrode of opposite side is pressed with the terminal of the printed circuit board (PCB) by the way that different side's conducting film is corresponding on the flexible PCB
Connect.
Further, it is arranged in the signal terminal correspondence to be detected on the cabling of the flexible PCB and sets the first inspection
Measuring point, is arranged in the flexible PCB with the signal terminal to be detected adjacent and electrical connection non-signal terminal is corresponding
The second test point is set on cabling.
Further, set on the cabling that the signal terminal correspondence to be detected is arranged on the printed circuit board (PCB)
3rd test point, in adjacent with the signal terminal to be detected and electrical connection non-signal terminal, corresponding to be arranged in the printing electric
The 4th test point is set on the cabling of road plate.
For up to above-mentioned or other purposes, a kind of method of testing of display device of further embodiment of this invention, with above-mentioned reality
The display device described in example is applied, including：Believed by the voltage for testing first and second test point or described 3rd, test point
Number, obtain the crimping impedance of the terminal to be detected.
For up to above-mentioned or other purposes, a kind of method of testing of display device of yet another embodiment of the invention, with above-mentioned reality
The display device described in example is applied, including：Passed through by signal terminal to be detected described in one with non-signal terminal described in adjacent one
Semiconductor conductive pattern is electrically connected；Passed through by another signal terminal to be detected with adjacent another non-signal terminal
Metal pattern is electrically connected；By testing the voltage signal of first and second test point or described 3rd, test point, institute is obtained
State electrode on the corresponding flexible PCB of terminal to be detected, the semiconductor conductive pattern, the metal pattern two-by-two
Between conduction impedance.
The present invention has advantages below compared with prior art：
The present invention passes through setting signal terminal and non-signal on the flexible PCB and/or printed circuit board (PCB) of display device
The corresponding test point of terminal, can obtain the crimping impedance of the terminal to be detected, thus accurately, rapidly judge terminal compression joint
It is bad.
Brief description of the drawings
Fig. 1 is display device floor map in the prior art；
Fig. 2 is array base palte terminal schematic diagram in first embodiment of the invention；
Fig. 3 is array base palte terminal close-up schematic view in Fig. 2 of the present invention；
Fig. 4 is display device array base palte portion of terminal diagrammatic cross-section of the present invention；
Fig. 5 is flexible PCB schematic diagram in first embodiment of the invention；
Fig. 6 is second embodiment of the invention array base palte terminal schematic diagram；
Fig. 7 is array base palte terminal close-up schematic view in Fig. 6 of the present invention；
Fig. 8 is array base palte terminal diagrammatic cross-section in Fig. 7 of the present invention；
Fig. 9 is printed circuit board (PCB) schematic diagram in second embodiment of the invention；
Figure 10 is third embodiment of the invention array base palte terminal close-up schematic view；
Figure 11 is array base palte terminal diagrammatic cross-section in Figure 10 of the present invention.
Embodiment
Embodiment 1
Fig. 2 is array base palte terminal schematic diagram in first embodiment of the invention.The invention provides a kind of array base palte, bag
Include：One substrate, including a viewing area and with non-display area, multiple terminal areas are stretched out in the non-display area, should
Multiple terminal areas are used to crimp Flexible Displays circuit board (referring to Fig. 1).As shown in Fig. 2 each terminal area is substantially drawn
It is divided into the first sub- terminal area 21, the second sub- terminal area 22, the 3rd sub- terminal area 23 and alignment mark area 24, and it is described
First and third terminal area 21,23 is distributed in the described second sub- both sides of terminal area 22.For example, the first and third sub- end positioned at two ends
Subregion 21,23 is WOA (wire on array) terminal (such as VGL, VGH, Vcom), and the second sub- terminal area 22 is connection
The Output lead-out terminals (such as S1, S2, S3) of data voltage, the first sub- terminal area 22 of sub- terminal area 21 and second it
Between and the second sub- terminal area 23 of sub- terminal area 22 and the 3rd between be equipped with Dummy terminals.
Between the first sub- terminal area 21 and the second sub- terminal area 22 and the second sub- terminal area
Region 25 and region 26 are respectively arranged between 22 and the 3rd sub- terminal area 23.Fig. 3 is array base palte in Fig. 2 of the present invention
The close-up schematic view in region 25 and region 26 in terminal.As shown in figure 3, the region 25 includes VGL terminals, a Dummy
Terminal, S1 terminals, S2 terminals, S3 terminals.I.e. in the described first sub- terminal area 21 and the described second sub- terminal area 22, described
One non-signal terminal Dummy, the non-signal end are set between the second sub- terminal area 22 and the 3rd sub- terminal area 23
Sub- Dummy no signals in Display panel, the non-signal terminal Dummy is with adjacent terminal on its surface covered with ITO layer
Pattern 36, it is preferable that in the both ends covering ITO layer pattern 36 of non-signal terminal Dummy and adjacent terminal, so as to save material
Material, it is to avoid cause short circuit between adjacent signal terminal.Wherein, ITO layer is filled with point-like and illustrated.ITO is transparent, can be observed
To the distribution situation of conducting particles.
Wherein, the terminal area is disposed with a plurality of signal terminal and a plurality of non-signal terminal, non-signal terminal described in one
It is disposed adjacent with a signal terminal to be detected, the signal terminal to be detected is with the adjacent non-signal terminal in both ends electricity
Connection.The signal terminal to be detected passes through semiconductor conductive pattern (such as ITO with the adjacent non-signal terminal at both ends
Pattern) and/or metal pattern electrical connection.
Present invention also offers a kind of display device, including：Display panel, flexible PCB and printed circuit board (PCB)；Institute
State the array base palte described in display panel above-described embodiment and the counter substrate and sandwiched that set corresponding thereto and the array
Display medium between substrate and the counter substrate；The electrode of side and the corresponding array base on the flexible PCB
The terminal of the terminal area of plate is crimped by different side's conducting film correspondence；The electrode of opposite side and institute on the flexible PCB
The terminal for stating printed circuit board (PCB) is crimped by different side's conducting film correspondence.
Fig. 4 is display device array base palte portion of terminal diagrammatic cross-section of the present invention.As shown in figure 4, array base palte terminal is cutd open
Face structure is followed successively by substrate 47 from top to bottom, such as polyimide substrate, adhesive glue 46, electrode 45, such as the flexibility of Cu electrodes formation
Circuit board, centre is includes different side's conducting film of conducting particles 44 and the formation of solid 43, and lower section includes substrate such as glass base
Plate 41 and the array terminal of the formation of ITO electrode 42.Wherein, the array terminal can also include metal level and insulating barrier (is schemed not
Show), its structure is structure common in the art.Cu electrodes 45 lead to ITO electrode 42 on array base palte on flexible PCB
Conducting particles is crossed to turn on about 44, and left and right is insulated.
Fig. 5 is flexible PCB schematic diagram in first embodiment of the invention.As shown in figure 5, being provided with flexible PCB
Connect the first test point TP1 of Dummy terminals and connect the second test point TP2 of S1 terminals.It is aobvious present invention also offers one kind
The method of testing of showing device, with the display device described in above-described embodiment, after the completion of terminal compression joint, individually surveys TP2, can obtain
To S1 data voltage waveform；TP1 and TP2 is surveyed simultaneously, can obtain terminal compression joint impedance.
After the terminal compression joint of the present invention, typically see whether to offset by Mark or by array base palte terminal area,
Because Dummy terminals only retain ITO layer, because ITO is transparent, so it is observed that the distribution situation of conducting particles, enters
One step inspection crimps result.
The present invention is by the special terminal design in array base palte side, after making terminal compression joint complete, can directly measure crimping resistance
It is anti-, so as to check crimping situation.
Embodiment 2
Fig. 6 is second embodiment of the invention array base palte terminal schematic diagram.As shown in fig. 6, the first sub- terminal area 61,
Three regions 63 are WOA terminal regions, and the second sub- terminal area 62 is the lead-out terminal region of connection data voltage.Wherein, the first son
The outside of terminal area 61, the 3rd sub- exterior lateral area of terminal area 63 are respectively arranged with region 65 and region 66, selectively, in institute
The outside for stating region 65,66 sets non-signal terminal Dummy, and all uses semiconductor conductive material, and such as ITO pattern is formed.
Fig. 7 is the close-up schematic view of array base palte terminal area 65 in Fig. 6 of the present invention.As shown in fig. 7, the region 65
Including terminal Dummy, terminal Vcom, terminal VGH, terminal VGH, terminal OE.I.e. in the first sub- outside of terminal area 61, the 3rd son
The outside of terminal area 63 sets non-signal terminal Dummy, non-signal terminal no signal in Display panel, the non-signal
Terminal major part region is provided with ITO layer, and ITO layer is filled with point-like to be illustrated.ITO is transparent, it is observed that conducting particles
Distribution situation.In addition, non-signal terminal Dummy and Vcom terminal surfaces are connected with each other covered with ITO layer pattern 66, it is preferable that
In the both ends covering ITO layer pattern 76 of non-signal terminal Dummy and adjacent Vcom terminals, so as to save material, it is to avoid make
Into short circuit between adjacent signal terminal.
Fig. 8 is array base palte terminal diagrammatic cross-section in Fig. 7 of the present invention.As shown in figure 8, array base palte terminal cross-section structure
Substrate 87 is followed successively by from top to bottom, such as polyimide substrate, adhesive glue 86, electrode 85, such as the flexible PCB of Cu electrodes formation,
Centre for include conducting particles 84 and solid 83 formation different side's conducting film, lower section include substrate such as glass substrate 81 and
The array terminal of the formation of ITO electrode 82.Wherein, the array terminal can also include metal level and insulating barrier (not shown), its
Structure is structure common in the art.Cu electrodes 85 pass through conduction with ITO electrode 82 on array base palte on flexible PCB
Particle is turned on about 84, and left and right is insulated.
Fig. 9 is printed circuit board (PCB) schematic diagram in second embodiment of the invention.As shown in figure 9, being provided with printed circuit board (PCB)
Connect non-signal terminal Dummy test point TP3 and connect the test point TP4 of Vcom terminals.After printed circuit board (PCB) is completed,
TP4 is individually surveyed, Vcom voltage signal can be obtained；TP3 and TP4 is surveyed simultaneously, can obtain terminal compression joint impedance.Selectively,
The test point of embodiment 2 is arranged on flexible PCB and/or printed circuit board (PCB), can measure terminal compression joint impedance.
Embodiment 3
Figure 10 is third embodiment of the invention array base palte terminal close-up schematic view.As shown in Figure 10, the 1st non-letter
Number terminal Dummy is electrically connected with the surface covering semiconductor conductive material 1061 of the 2nd Vcom terminal, the 3rd non-signal terminal
Dummy is connected with the 4th VGH terminal by the first metal layer 1062, it is preferable that non-signal terminal Dummy with it is adjacent
The both ends covering ITO layer pattern 36 of terminal, so as to save material, it is to avoid cause short circuit between adjacent signal terminal.
Figure 11 is array base palte terminal diagrammatic cross-section in Figure 10 of the present invention.Wherein top is flexible PCB, and centre is
Include different side's conducting film (not shown) of conducting particles, lower section is array terminal.Flexible circuit circuit board, from top to bottom successively
For polyimide substrate 1107, adhesive glue 1106, Cu electrodes 1105.The gold medal of glass substrate 1101 and first is illustrated on array base palte
Belong to layer 1102, insulating barrier 1103, ITO electrode 1104.As shown in figure 11, on flexible PCB on Cu electrodes 1105 and array base palte
ITO electrode 1104 above and below conducting particles (not shown) by being turned on, and left and right is insulated.The definition of terminal shown in Figure 11 is respectively terminal
Dummy, terminal Vcom, terminal Dummy, terminal VGH, terminal OE, terminal STV.Flexible PCB and printed circuit board arrangement are same
Example 1 and example 2, are not repeated herein.
Wherein, flexible PCB and array base palte terminal area crimp the main resistance by flexible PCB Cu electrodes of impedance
The contact impedance of anti-, Cu electrodes and conducting particles, the impedance of conducting particles itself, conducting particles and array base palte ITO electrode
5 parts such as contact impedance, impedance of ITO electrode are constituted.In the case of general, because the direct impedance of conducting particles is small, so
The contact impedance of terminal compression joint depends primarily on the quantity of conducting particles on the contact impedance and electrode of conducting particles and electrode.
Using method of testing same as the previously described embodiments, while measuring the 1st non-signal terminal Dummy and the 2nd
Vcom terminals, can measure Cu electrodes and ITO conduction impedance RCu-ITO；The 3rd Dummy terminal and the 4th are measured simultaneously
VGH terminals, can measure the conduction impedance RCu-M1 of Cu electrodes and the first metal layer；RCu-ITO subtracts RCu-M1, can obtain
ITO and M1 contact impedance.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, belong to the technology of the present invention
In the protection domain of scheme.
Claims (4)
1. a kind of display device, including：
Display panel, flexible PCB and printed circuit board (PCB)；
The display panel include array base palte and the counter substrate and sandwiched that set corresponding thereto and the array base palte and
Display medium between the counter substrate；
The array base palte, including：
One substrate, including a viewing area and with non-display area, multiple terminal areas, institute are formed in the non-display area
State terminal area and be disposed with a plurality of signal terminal and a plurality of non-signal terminal, non-signal terminal described in one and a signal end to be detected
Son is disposed adjacent, and the signal terminal to be detected is electrically connected with the adjacent non-signal terminal；Each terminal area is drawn
Be divided into the first sub- terminal area, the second sub- terminal area, the 3rd sub- terminal area, and the first sub- terminal area and, the 3rd
Sub- terminal area is distributed in the described second sub- terminal area both sides；The first sub- terminal area outside, the first sub- terminal
Between region and the second sub- terminal area, between the second sub- terminal area and the 3rd sub- terminal area, it is described
Non-signal terminal is provided with the outside of 3rd sub- terminal area；The first metal layer, first metal are formed on the substrate
Layer includes the signal terminal pattern；Insulating film pattern is formed on the first metal layer；Semiconductor conductive pattern is re-formed,
The semiconductor conductive pattern includes the non-signal terminal patterns, and the semiconductor conductive pattern covers the signal end
Son；The signal terminal to be detected passes through semiconductor conductive pattern and/or metal pattern electricity with the adjacent non-signal terminal
Connection；
The electrode of side passes through different with the terminal of the terminal area of the corresponding array base palte on the flexible PCB
Square conducting film correspondence is crimped；
The electrode of opposite side is crimped with the terminal of the printed circuit board (PCB) by the way that different side's conducting film is corresponding on the flexible PCB；
Be arranged in the signal terminal to be detected correspondence on the cabling of the flexible PCB and set the first test point, with it is described
Signal terminal to be detected is adjacent and non-signal terminal correspondence of electrical connection is arranged on the cabling of the flexible PCB and sets second
Test point.
2. display device according to claim 1, it is characterised in that：Institute is arranged in the signal terminal correspondence to be detected
State and the 3rd test point is set on the cabling on printed circuit board (PCB), in adjacent with the signal terminal to be detected and electrical connection non-signal
Terminal correspondence, which is arranged on the cabling of the printed circuit board (PCB), sets the 4th test point.
3. a kind of method of testing of display device, with display device as claimed in claim 1 or 2, including：
By testing the voltage signal of first and second test point or the three, the 4th test point, the letter to be detected is obtained
The crimping impedance of number terminal.
4. a kind of method of testing of display device, with display device as claimed in claim 1 or 2, including：
Electrically connected by signal terminal to be detected described in one with non-signal terminal described in adjacent one by semiconductor conductive pattern；
Electrically connected by another signal terminal to be detected with adjacent another non-signal terminal by metal pattern；
By testing the voltage signal of first and second test point or the three, the 4th test point, the letter to be detected is obtained
Electrode, the semiconductor conductive pattern, the metal pattern on number corresponding flexible PCB of terminal are between any two
Conduction impedance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410479501.2A CN104200767B (en) | 2014-09-18 | 2014-09-18 | Array base palte, display device and its detection method |
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| CN201410479501.2A CN104200767B (en) | 2014-09-18 | 2014-09-18 | Array base palte, display device and its detection method |
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| CN104200767B true CN104200767B (en) | 2017-10-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678621B (en) * | 2015-03-25 | 2017-09-19 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display device |
| CN106771832B (en) | 2017-02-23 | 2019-08-16 | 京东方科技集团股份有限公司 | Its display device of a kind of circuit checker, circuit detecting method and application |
| CN107871484B (en) * | 2017-12-08 | 2020-11-06 | 南京中电熊猫平板显示科技有限公司 | Liquid crystal display device and method for improving power-down flash of display panel |
| CN111554009B (en) * | 2020-04-23 | 2022-01-11 | 赣州深奥科技有限公司 | Fingerprint head structure |
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| JPH11125837A (en) * | 1997-10-22 | 1999-05-11 | Nanokkusu Kk | Chip-on glass liquid crystal display device |
| KR101034683B1 (en) * | 2004-06-28 | 2011-05-16 | 엘지디스플레이 주식회사 | liquid crystal display device |
| US8525817B2 (en) * | 2006-12-06 | 2013-09-03 | Pervasive Display Co., Ltd. | Pixel array module and flat display apparatus |
| JP4711149B2 (en) * | 2008-06-18 | 2011-06-29 | ソニー株式会社 | Flexible printed wiring board, touch panel, display panel and display device |
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| CN1447293A (en) * | 2002-03-22 | 2003-10-08 | 夏普株式会社 | Circuit board connection structure, method of forming, circuit board connection structure and display device |
| CN1645985A (en) * | 2004-01-21 | 2005-07-27 | 东北先锋电子股份有限公司 | Electronic module, device therwith and verifying method for press connection thereon |
| US7626583B2 (en) * | 2006-01-12 | 2009-12-01 | Au Optronics Corp. | Voltage detection systems and voltage detection circuits thereof |
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