CN105445642A - Drive circuit board, display module and display panel automatic test method - Google Patents
Drive circuit board, display module and display panel automatic test method Download PDFInfo
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- CN105445642A CN105445642A CN201410430536.7A CN201410430536A CN105445642A CN 105445642 A CN105445642 A CN 105445642A CN 201410430536 A CN201410430536 A CN 201410430536A CN 105445642 A CN105445642 A CN 105445642A
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Abstract
The invention discloses a drive circuit board, a display module and a display panel automatic test method. The drive circuit board comprises a circuit board, a timing control circuit, a connector and a function pin set. The timing control circuit is arranged on the circuit board. The connector is arranged on the circuit board. The function pin set is arranged on the circuit board, and includes a function triggering pin and a grounding pin. The function triggering pin is electrically connected with the timing control circuit. The invention further discloses the display module and the display panel automatic test method. The method is conductive to automatic test of display panels, the manufacturing time is shortened, and the product yield is improved.
Description
Technical field
The present invention relates to a kind of display module and method of testing thereof, particularly about the automated testing method of a kind of drive circuit board, display module and display panel.
Background technology
Display module after fabrication is complete, all needs the assembling just carrying out next stage through some tests, such as, needs through burn-in test.Fig. 1 is the schematic diagram that an existing display module accepts burn-in test.As shown in Figure 1, a display module 1 comprises a display panel 11 and one drive circuit plate 12, and drive circuit board 12 is electrically connected with display panel 11 to drive display panel 11 display frame.In addition, drive circuit board 12 has a sequential control circuit 121 and a connector 122, with data driver (scheming not show) and scan drive circuit (scheming not show), sequential control circuit 121 is electrically connected that data signal, sweep signal and other control signals are sent to data driver and scan drive circuit, so as to driving display panel 11 display frame.
In addition, for carrying out burn-in test, sequential control circuit 121 is built-in burn-in test pattern (agingmode) also, as long as input one trigger pip can make sequential control circuit 121 enter burn-in test pattern, and such as drive display panel 11 sequentially show entirely in vain, the picture of black, Quan Hong, entirely green and full indigo plant entirely.In addition, connector 122 at least needs to have a power pin, triggering pin and a ground connection pin.In addition, a tool 10 is also needed to insert in connector 122 with a corresponding connecting line 101, a power supply voltage signal, a ground signalling and a trigger pip inputed to respectively power pin, the ground connection pin of connector 122 and to trigger pin.Like this, trigger pip is sent to sequential control circuit 121 and enters burn-in test pattern to make sequential control circuit 121.
But above-mentioned prior art has its own shortcomings.
The first, staff must make corresponding connecting line 101 according to product type, therefore increases Production Time and cost, and affects product importing and speed of production.
The second, the kind of connecting line 101 and quantity increase, and then increase the burden of management.And the matching state that special messenger identifies connecting line and product need be equipped with in testing station, and differentiation management and control is carried out to different connecting line.
Three, connecting line is except the circuit of corresponding power pin, triggering pin and ground connection pin, still have many circuits, when connecting line 101 inserts connector 122, these connect the problem that road all may cause static discharge (ESD), so that damage product.
Four, the number of times of staff's plug-in connector 122 increases, and the probability thus causing connecting line 101 or connector 122 to damage increases.
Five, the burden of product design becomes large, and deviser must reserve triggering pin to receive trigger pip for different product at connector 122.
In addition, the carrying out of prior art also unfavorable automatic test.Therefore, how to provide the automated testing method of a kind of drive circuit board, display module and display panel, can solve the problem, and be conducive to automatic test, real is one of current important topic.
Summary of the invention
Because above-mentioned problem, an object of the present invention is the automated testing method providing a kind of drive circuit board, display module and display panel, can solve the problem, and be conducive to automatic test, and then shorten manufacturing time and improving product yield.
For reaching above-mentioned purpose, the drive circuit board according to a kind of display panel of the present invention comprises a circuit board, a sequential control circuit, a connector and a function pin group.Sequential control circuit is arranged on circuit board.Connector is arranged on circuit board.Function pin group to be arranged on circuit board and to comprise a function and triggers pin and a ground connection pin.Function triggers pin and is electrically connected with sequential control circuit.
In one embodiment, function triggers pin and receives a function trigger pip, and function trigger pip carries out a test function in order to activation schedule control circuit.
In one embodiment, function trigger pip is sent to sequential control circuit to start test function.
In one embodiment, function triggering pin is electrically connected with sequential control circuit via a change-over circuit.
In one embodiment, test function is a burn-in test.
In one embodiment, function pin group also comprises a power pin, and it receives a power supply voltage signal.
In one embodiment, function pin group also comprises another function and triggers pin, and it is electrically connected with sequential control circuit.
In one embodiment, function pin group has a connector structure.
In one embodiment, function pin group has a golden finger structure.
In one embodiment, function pin group is positioned at a corner or an edge of circuit board.
In one embodiment, circuit board has a syndeton and is adjacent to function pin group.
In one embodiment, a pin spacing of function pin group is between 0.4mm and 2.8mm.
In one embodiment, function triggers a pin width of pin between 0.25mm and 1.65mm.
In one embodiment, drive circuit board also comprises a shade part, shade function pin group.
For reaching above-mentioned purpose, comprise a display panel and one drive circuit plate according to one display module of the present invention.Drive circuit board is electrically connected with display panel, and comprises a circuit board, a sequential control circuit, a connector and a function pin group.Sequential control circuit is arranged on circuit board.Connector is arranged on circuit board.Function pin group to be arranged on circuit board and to comprise a function and triggers pin and a ground connection pin, and function triggers pin and is electrically connected with sequential control circuit.
For reaching above-mentioned purpose, according to the automated testing method of a kind of display panel of the present invention, comprise: a circuit board with a function pin group is provided, circuit board has a sequential control circuit in order to drive display panel, function pin group comprises a function and triggers pin and a ground connection pin, and function triggering pin is electrically connected with sequential control circuit; Input a function trigger pip with a probe and trigger pin in function, carry out a functional mode so as to activation schedule control circuit; And input a ground signalling in ground connection pin with another probe.
In one embodiment, functional mode is a burn-in test of display panel.
From the above, in the automated testing method of drive circuit board of the present invention, display module and display panel, by arranging a function pin group on circuit boards, and the function of function pin group triggering pin is electrically connected with sequential control circuit, like this, when function triggering pin receives a function trigger pip, namely sequential control circuit is triggered and carries out a functional mode, such as, as a test function, burn-in test.So, staff just need not make corresponding connecting line according to product type, because all products are all with same connecting line, so just can solve the problem, and be conducive to display module to import automatic test, and manufacturing time and improving product yield can be shortened.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that an existing display module accepts burn-in test.
Fig. 2 A is the schematic diagram of the one drive circuit plate of first embodiment of the invention.
Fig. 2 B is the schematic diagram of the function pin group of the drive circuit board of first embodiment of the invention.
Fig. 3 is another schematic diagram of the one drive circuit plate of first embodiment of the invention.
Fig. 4 is the schematic diagram of the one drive circuit plate of second embodiment of the invention.
Fig. 5 is the schematic diagram of the one drive circuit plate of third embodiment of the invention.
Fig. 6 is the schematic diagram of a display module of one embodiment of the invention.
Fig. 7 is the process flow diagram of the automated testing method of a kind of display panel of one embodiment of the invention.
Embodiment
Hereinafter with reference to correlative type, illustrate that wherein identical element is illustrated with identical reference marks according to a kind of drive circuit board of present pre-ferred embodiments, display module and the automated testing method of display panel.
Fig. 2 A is the schematic diagram of the one drive circuit plate 2 of first embodiment of the invention.As shown in Figure 2 A, drive circuit board 2 comprises circuit board 21, sequential control circuit 22, a connector 23 and a function pin group 24.The drive circuit board 2 of the present embodiment is the drive circuit board of a display panel.Display panel is such as display panels, LED display panel or other forms of display panel.
Sequential control circuit 22 is arranged on circuit board 21.Sequential control circuit 22 is such as time schedule controller (timingcontroller, TCON), and it can be connected with a data driver and scan driving circuit, so as to driving display panel display frame.The exportable data signal of sequential control circuit 22, sweep signal and other control signals, such as horizontal-drive signal or vertical synchronizing signal.In addition, sequential control circuit 22 is built-in at least one functional mode also, as long as input one trigger pip can make sequential control circuit 22 enter corresponding functional mode.Functional mode is such as burn-in test pattern (agingmode), its such as make display panel sequentially show complete in vain, the picture of black, Quan Hong, entirely green and full indigo plant entirely.
Connector 23 is arranged on circuit board 21.The present embodiment does not limit the interface specification of connector 23, and it can change according to product needed.In addition, the present embodiment does not limit the quantity of connector 23 yet.
Function pin group 24 is arranged on circuit board 21, such as, be the corner or the edge that are arranged at circuit board 21.Function pin group 24 comprises a function and triggers pin 241 and a ground connection pin 242, and function triggers pin 241 and is electrically connected with sequential control circuit 22.The present embodiment triggers pin 241 with function and directly electrically connects as example with sequential control circuit 22, does not namely connect other elements therebetween.Certainly, in other embodiments, function triggers pin 241 and can be Indirect Electro with sequential control circuit 22 and be connected.In addition, in the present embodiment, ground connection pin 242 is also electrically connected with sequential control circuit 22.
Function triggers pin 241 can receive a function trigger pip, and function trigger pip carries out a test function in order to activation schedule control circuit 22.Function trigger pip can be provided by a tool.Test function is such as aging survey formula.In the present embodiment, function trigger pip is directly sent to sequential control circuit 22 to start test function.
Ground connection pin 242 is in order to receive a ground signalling.Function pin group 24 also can comprise a power pin 243, and it receives a power supply voltage signal.Power supply voltage signal can be exchanged into suitable voltage signal supplying to circuit plate 21 and uses.In the present embodiment, power pin 243 is also electrically connected with sequential control circuit 22.In addition, function pin group 24 also can comprise at least another function and trigger pin 244, and it is electrically connected with sequential control circuit 22.Function triggering pin 244 can receive another function trigger pip and enter another functional mode to make sequential control circuit 22.
Function pin group 24 can have a suitable structure, such as, have a connector structure or golden finger structure, be configured to example in this with golden finger.Like this, control plural probe by a controller and to contact with the pin of function pin group 24 and signal is inputted, just can reach automatic test object.
In addition, as shown in Figure 2 B, a pin spacing (i.e. the spacing of the adjacent pin) P of function pin group 24 between 0.4mm and 2.8mm, with the carrying out of favourable functional mode, such as, can reduce the probability of probe false touch pin.In addition, a pin width W of function triggering pin 241 can, between 0.25mm and 1.65mm, with the carrying out of favourable functional mode, such as, reduce the probability of probe false touch pin, and it be really in electrical contact to guarantee that probe and pin have.
As shown in Figure 3, in the present embodiment, drive circuit board 2 also can comprise a shade part 25, shade function pin group 24.When test is carried out complete, available shade part 25 shade function pin group 24, can avoid staff or user's false touch whereby and cause damage of product.Shade part 25 is such as an adhesive tape.
Fig. 4 is the schematic diagram of the one drive circuit plate 2a of second embodiment of the invention.As shown in Figure 4, the main difference of drive circuit board 2a and drive circuit board 2 is, the function of drive circuit board 2a triggers pin 241 and is electrically connected with sequential control circuit 22 via a change-over circuit 26.In the present embodiment, the function trigger pip that function triggering pin 241 receives possibly directly cannot enter a functional mode by activation schedule control circuit 22, and such as voltage is lower.Therefore just need first through the conversion of change-over circuit 26, such as, boost, then be transferred to sequential control circuit 22.The present embodiment does not limit the conversion aspect of change-over circuit 26, and it such as comprises the conversion of voltage, electric current or frequency.
Fig. 5 is the schematic diagram of the one drive circuit plate 2b of third embodiment of the invention.As shown in Figure 5, the main difference of drive circuit board 2b and drive circuit board 2 is, circuit board 21 has a syndeton 211 and is adjacent to function pin group 24.Syndeton 211 can be connected the signal that function pin group 24 Received signal strength input block is inputted with a signal input unit (scheming not show).Syndeton 211 is such as a concaveconvex structure (such as plural groove), and signal input unit is sticked in syndeton 211 and is electrically connected with function pin group 24.In addition, syndeton 211 can comprise at least one keeper PE, and in this, keeper PE is for concave point, and signal input unit can obtain locating effect by keeper PE.
The person of should be noted, the technical characteristic of above-described embodiment can be used alone or merges use.
Fig. 6 is the schematic diagram of a display module 4 of one embodiment of the invention, and as shown in Figure 6, display module 4 comprises a display panel 40 and one drive circuit plate 3.Display panel 40 is such as display panels, LED display panel or other forms of display panel.Drive circuit board 3 can be arbitrary or its combination of above-mentioned drive circuit board 2,2a, 2b.Drive circuit board 3 is electrically connected with display panel 40 to drive display panel 40 display frame.Technical characteristic due to drive circuit board 3 can refer to above-described embodiment and learns, therefore repeats no more in this.
Fig. 7 is the process flow diagram of the automated testing method of a kind of display panel of one embodiment of the invention.Automated testing method can be applicable to suitable display panel, such as display panels, LED display panel or other forms of display panel.Automated testing method comprises the following step: provide a circuit board with a function pin group, circuit board has a sequential control circuit in order to drive display panel, function pin group comprises a function and triggers pin and a ground connection pin, and function triggering pin is electrically connected with sequential control circuit (step S01); Input a function trigger pip with a probe and trigger pin in function, carry out a functional mode (step S02) so as to activation schedule control circuit; And input a ground signalling in ground connection pin (step S03) with another probe.Above-mentioned functional mode is such as a burn-in test of display panel.
Because the technical characteristic of automated testing method is specified in above-described embodiment in the lump, therefore repeat no more in this.The person of should be noted, the robotization festing method of the present embodiment comes input function trigger pip, ground signalling and/or other signals by the mode of probe, and can reach the object that formula is surveyed in robotization, and then promotes speed of production and product yield.
In sum, in the automated testing method of drive circuit board of the present invention, display module and display panel, by arranging a function pin group on circuit boards, and the function of function pin group triggering pin is electrically connected with sequential control circuit, like this, when function triggering pin receives a function trigger pip, namely sequential control circuit is triggered and carries out a functional mode, such as, as a test function, burn-in test.So, staff just need not make corresponding connecting line according to product type, because all products are all with same connecting line, so just can solve the problem, and be conducive to display module to import automatic test, and manufacturing time and improving product yield can be shortened.
The foregoing is only illustrative, but not be restricted.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in right.
Claims (10)
1. a drive circuit board, is characterized in that, comprises:
One circuit board;
One sequential control circuit, is arranged on this circuit board;
A connector, is arranged on this circuit board; And
One function pin group, to be arranged on this circuit board and to comprise a function and trigger pin and a ground connection pin, this function triggers pin and is electrically connected with this sequential control circuit.
2. drive circuit board as claimed in claim 1, is characterized in that, this function triggers pin and receives a function trigger pip, and this function trigger pip carries out a test function in order to trigger this sequential control circuit.
3. drive circuit board as claimed in claim 1, it is characterized in that, this function pin group also comprises a power pin, and it receives a power supply voltage signal.
4. drive circuit board as claimed in claim 1, is characterized in that, this function pin group has a connector structure.
5. drive circuit board as claimed in claim 1, is characterized in that, this function pin group has a golden finger structure.
6. drive circuit board as claimed in claim 1, it is characterized in that, a pin spacing of this function pin group is between 0.4mm and 2.8mm.
7. drive circuit board as claimed in claim 1, is characterized in that, this function triggers a pin width of pin between 0.25mm and 1.65mm.
8. drive circuit board as claimed in claim 1, is characterized in that, also comprise:
One shade part, this function pin group of shade.
9. show a module, it is characterized in that, comprise:
One display panel; And
One drive circuit plate, is electrically connected with this display panel, and comprises:
One circuit board;
One sequential control circuit, is arranged on this circuit board;
A connector, is arranged on this circuit board; And
One function pin group, to be arranged on this circuit board and to comprise a function and trigger pin and a ground connection pin, this function triggers pin and is electrically connected with this sequential control circuit.
10. an automated testing method for display panel, is characterized in that, comprises:
One circuit board with a function pin group is provided, this circuit board has a sequential control circuit in order to drive this display panel, this function pin group comprises a function and triggers pin and a ground connection pin, and this function triggering pin is electrically connected with this sequential control circuit;
Inputting a function trigger pip with a probe and trigger pin in this function, carrying out a functional mode so as to triggering this sequential control circuit; And
A ground signalling is inputted in this ground connection pin with another probe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430536.7A CN105445642B (en) | 2014-08-28 | 2014-08-28 | The automated testing method of drive circuit board, display module and display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410430536.7A CN105445642B (en) | 2014-08-28 | 2014-08-28 | The automated testing method of drive circuit board, display module and display panel |
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| CN105445642A true CN105445642A (en) | 2016-03-30 |
| CN105445642B CN105445642B (en) | 2019-07-05 |
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| CN201410430536.7A Active CN105445642B (en) | 2014-08-28 | 2014-08-28 | The automated testing method of drive circuit board, display module and display panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581766A (en) * | 2018-12-21 | 2019-04-05 | 惠科股份有限公司 | Driving circuit, driving method and display equipment |
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| US5247246A (en) * | 1987-04-17 | 1993-09-21 | Everett Charles Technologies, Inc. | Testing of integrated circuit devices on loaded printed circuit boards |
| CN2567588Y (en) * | 2002-08-17 | 2003-08-20 | 中国科学院长春光学精密机械与物理研究所 | Testing instrument for display performance of liquid crystal display |
| CN101958091A (en) * | 2009-07-15 | 2011-01-26 | 北京京东方光电科技有限公司 | Post-casing detection device and method for liquid crystal display panel |
| CN102063877A (en) * | 2009-11-12 | 2011-05-18 | 群康科技(深圳)有限公司 | LCD (Liquid Crystal Display) and detecting method thereof |
| TWI396883B (en) * | 2009-08-18 | 2013-05-21 | Au Optronics Suzhou Corp Ltd | Liquid crystal display test module and liquid crystal display defect analyzing method |
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2014
- 2014-08-28 CN CN201410430536.7A patent/CN105445642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5247246A (en) * | 1987-04-17 | 1993-09-21 | Everett Charles Technologies, Inc. | Testing of integrated circuit devices on loaded printed circuit boards |
| CN2567588Y (en) * | 2002-08-17 | 2003-08-20 | 中国科学院长春光学精密机械与物理研究所 | Testing instrument for display performance of liquid crystal display |
| CN101958091A (en) * | 2009-07-15 | 2011-01-26 | 北京京东方光电科技有限公司 | Post-casing detection device and method for liquid crystal display panel |
| TWI396883B (en) * | 2009-08-18 | 2013-05-21 | Au Optronics Suzhou Corp Ltd | Liquid crystal display test module and liquid crystal display defect analyzing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109581766A (en) * | 2018-12-21 | 2019-04-05 | 惠科股份有限公司 | Driving circuit, driving method and display equipment |
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