CN105445642B - The automated testing method of drive circuit board, display module and display panel - Google Patents
The automated testing method of drive circuit board, display module and display panel Download PDFInfo
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- CN105445642B CN105445642B CN201410430536.7A CN201410430536A CN105445642B CN 105445642 B CN105445642 B CN 105445642B CN 201410430536 A CN201410430536 A CN 201410430536A CN 105445642 B CN105445642 B CN 105445642B
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Abstract
The present invention proposes that the automated testing method of a kind of drive circuit board, display module and display panel, the drive circuit board include a circuit board, a sequential control circuit, a connector and a function pin group.Sequential control circuit is set on circuit board.Connector is set on circuit board.Function pin group is set on circuit board and includes function triggering pin and a ground connection pin.Function triggering pin is electrically connected with sequential control circuit.The present invention also discloses the automated testing method of a kind of display module and display panel.The present invention can be conducive to the automatic test of display panel, and then shorten manufacturing time and promote product yield.
Description
Technical field
The present invention relates to a kind of display module and its test methods, especially with regard to a kind of drive circuit board, display module
And the automated testing method of display panel.
Background technique
Display module after fabrication is complete, requires the assembling that just can be carried out next stage by some tests, such as
It needs by burn-in test.Fig. 1 is the schematic diagram that an existing display module receives burn-in test.As shown in Figure 1, a display module
1 includes a display panel 11 and one drive circuit plate 12, and drive circuit board 12 is electrically connected to drive display with display panel 11
Panel 11 shows picture.In addition, drive circuit board 12 has a sequential control circuit 121 and a connector 122, timing control electricity
Road 121 and data driver (figure is not shown) and scan drive circuit (figure is not shown) be electrically connected with by data signal, scan
Signal and other control signals are sent to data driver and scan drive circuit, show picture so as to driving display panel 11
Face.
In addition, to carry out burn-in test, also built-in, burn-in test mode (the aging mode) of sequential control circuit 121, only
Input a trigger signal can make sequential control circuit 121 enter burn-in test mode, and for example driving display panel 11 according to
Sequence shows the picture of complete white, completely black, Quan Hong, complete green and full indigo plant.In addition, connector 122 at least needs to have a power pin, one
Trigger pin and a ground connection pin.In addition, it is also necessary to a jig 10 is inserted into connector 122 with a corresponding connecting line 101, with
One power supply voltage signal, a ground signalling and a trigger signal are separately input into the power pin of connector 122, connect
Foot and triggering pin.In this way, trigger signal is sent to sequential control circuit 121 so that sequential control circuit 121 enters aging
Test pattern.
However, the above-mentioned prior art can have the disadvantage that.
The first, staff must make corresponding connecting line 101 according to product type, thus increase Production Time with
Cost, and influence product importing and speed of production.
The second, the type and quantity of connecting line 101 increase, and then increase the burden of management.And it need to be equipped in testing station
Special messenger identifies the matching state of connecting line and product, and distinguishes control to different connecting lines.
Third, connecting line are in addition to corresponding power pin, triggering pin and other than being grounded the route of pin, still there are many route,
When connecting line 101 is inserted into connector 122, the problem of these connect road all and may cause static discharge (ESD), so that being made to product
At injury.
4th, the number of staff's plug-in connector 122 increases, thus connecting line 101 or connector 122 is caused to damage
Probability increase.
5th, the burden of product design becomes larger, and designer must be for different product in the reserved triggering pin of connector 122
To receive trigger signal.
In addition, the progress of the prior art also unfavorable automatic test.Therefore, how a kind of drive circuit board, display are provided
The automated testing method of mould group and display panel is able to solve the above problem, and is conducive to automatic test, actually current weight
Want one of project.
Summary of the invention
In view of the above subject, a purpose of the present invention is that providing a kind of drive circuit board, display module and display surface
The automated testing method of plate is able to solve the above problem, and is conducive to automatic test, and then shortens manufacturing time and promoted
Product yield.
In order to achieve the above object, a kind of drive circuit board of display panel under this invention includes a circuit board, a timing control
Circuit, a connector and a function pin group processed.Sequential control circuit is set on circuit board.Connector is set to circuit board
On.Function pin group is set on circuit board and includes function triggering pin and a ground connection pin.Function trigger pin with
Sequential control circuit electrical connection.
In one embodiment, function triggering pin receives a function trigger signal, and function trigger signal is to trigger timing
Control circuit carries out a test function.
In one embodiment, function trigger signal is sent to sequential control circuit to start test function.
In one embodiment, function triggering pin is electrically connected via a conversion circuit with sequential control circuit.
In one embodiment, test function is a burn-in test.
In one embodiment, function pin group also includes a power pin, receives a power supply voltage signal.
In one embodiment, function pin group also includes another function triggering pin, is electrically connected with sequential control circuit.
In one embodiment, function pin group is constructed with a connector.
In one embodiment, function pin group is constructed with a golden finger.
In one embodiment, function pin group is located at a corner or an edge for circuit board.
In one embodiment, circuit board has the function of that a connection structure is adjacent to pin group.
In one embodiment, a pin spacing of function pin group is between 0.4mm and 2.8mm.
In one embodiment, a pin width of function triggering pin is between 0.25mm and 1.65mm.
In one embodiment, drive circuit board also includes a mask part, mask function pin group.
In order to achieve the above object, a kind of display module under this invention includes a display panel and one drive circuit plate.It drives
Dynamic circuit board is electrically connected with display panel, and includes a circuit board, a sequential control circuit, a connector and a function pin
Group.Sequential control circuit is set on circuit board.Connector is set on circuit board.Function pin group is set on circuit board simultaneously
Pin and a ground connection pin are triggered comprising a function, function triggering pin is electrically connected with sequential control circuit.
In order to achieve the above object, a kind of automated testing method of display panel under this invention, includes: providing has a function
Can pin group a circuit board, have a sequential control circuit to drive display panel on circuit board, function pin group includes
One function triggers pin and a ground connection pin, and function triggering pin is electrically connected with sequential control circuit；With probe input
One function trigger signal triggers pin in function, carries out a functional mode so as to triggering sequential control circuit；And with another spy
Needle inputs a ground signalling in ground connection pin.
In one embodiment, functional mode is a burn-in test of display panel.
From the above, it in the automated testing method of drive circuit board of the invention, display module and display panel, borrows
By a function pin group is arranged on circuit boards, and the function triggering pin of function pin group is electrically connected with sequential control circuit,
In this way, sequential control circuit is triggered and carries out a functional mode when function triggering pin receives a function trigger signal,
Such as a test function, such as burn-in test.In this way, staff need not just make corresponding connecting line according to product type,
Because all products are all that thus can solve the above problem, and be conducive to import display module with same connecting line
Automatic test, and can be shortened manufacturing time and promote product yield.
Detailed description of the invention
Fig. 1 is the schematic diagram that an existing display module receives burn-in test.
Fig. 2A 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 a kind of flow chart of the automated testing method of display panel of one embodiment of the invention.
Specific embodiment
Hereinafter with reference to correlative type, illustrate according to a kind of drive circuit board of present pre-ferred embodiments, display module and
The automated testing method of display panel, wherein identical element will be illustrated with identical reference marks.
Fig. 2A 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
Include a circuit board 21, a sequential control circuit 22, a connector 23 and a function pin group 24.The driving electricity of the present embodiment
Road plate 2 is the drive circuit board of a display panel.Display panel be, for example, liquid crystal display panel, LED display panel or
The display panel of other forms.
Sequential control circuit 22 is set on circuit board 21.Sequential control circuit 22 is, for example, time schedule controller
(timing controller, TCON), can connect with a data driver and a scan drive circuit, aobvious so as to driving
Show Display panel picture.The exportable data signal of sequential control circuit 22, scanning signal and other control signals, for example, it is horizontal same
Walk signal or vertical synchronizing signal.In addition, the also built-in at least functional mode of sequential control circuit 22, as long as one triggering letter of input
Sequential control circuit 22 number can be made to enter corresponding functional mode.Functional mode is, for example, burn-in test mode (aging
Mode), such as display panel is made sequentially to show the picture of complete white, completely black, Quan Hong, complete green and full indigo plant.
Connector 23 is set on circuit board 21.The present embodiment does not limit the interface specification of connector 23, can be according to production
Product need and change.In addition, the present embodiment does not limit the quantity of connector 23 yet.
Function pin group 24 is set on circuit board 21, is e.g. set to the corner or an edge of circuit board 21.Function
Energy pin group 24 triggers pin 241 and timing control electricity comprising function triggering pin 241 and a ground connection pin 242, function
Road 22 is electrically connected.The present embodiment is by taking function triggering pin 241 is directly electrically connected with sequential control circuit 22 as an example, i.e., therebetween
Do not connect other elements.Certainly, in other embodiments, function triggering pin 241 and sequential control circuit 22 can be indirect
Electrical connection.In addition, in the present embodiment, ground connection pin 242 is also electrically connected with sequential control circuit 22.
Function, which triggers pin 241, can receive a function trigger signal, and function trigger signal is to trigger sequential control circuit
22 carry out a test function.Function trigger signal can be provided by a jig.Test function is, for example, that formula is surveyed in aging.In the present embodiment
In, function trigger signal is conveyed directly to sequential control circuit 22 to start test function.
Pin 242 is grounded to receive a ground signalling.Function pin group 24 can include also a power pin 243, connect
Receive a power supply voltage signal.Power supply voltage signal can be exchanged into suitable voltage signal supplying to circuit plate 21 and use.In this reality
It applies in example, power pin 243 is also electrically connected with sequential control circuit 22.In addition, function pin group 24 can be also comprising at least another
Function triggers pin 244, is electrically connected with sequential control circuit 22.Function triggering pin 244 can receive another function triggering letter
Number so that sequential control circuit 22 enter another functional mode.
Function pin group 24 can have a suitable construction, such as with a connector construction or golden finger construction, in this
By taking golden finger constructs as an example.In this way, contacting and will believe with the pin of function pin group 24 by the plural probe of controller control
Number input, automatic test purpose can be reached.
In addition, as shown in Figure 2 B, a pin spacing (spacing of i.e. adjacent pin) P of function pin group 24 can be between
Between 0.4mm and 2.8mm, with the progress of advantageous functional mode, such as the probability that probe accidentally touches foot is reduced.In addition, function is touched
One pin width W of hair pin 241 with the progress of advantageous functional mode, such as can be reduced between 0.25mm and 1.65mm
Probe accidentally touches the probability of foot, and it is really in electrical contact to ensure that probe and pin have.
As shown in figure 3, in the present embodiment, drive circuit board 2 can also include a mask part 25, mask function pin group
24.When test is finished, 25 mask function pin group 24 of mask part can be used, staff is can avoid whereby or user misses
It touches and causes damage of product.Mask part 25 is, for example, 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, drive circuit board 2a
Be with the main difference of drive circuit board 2, the function of drive circuit board 2a triggering pin 241 via a conversion circuit 26 and with
Sequential control circuit 22 is electrically connected.In the present embodiment, the 241 received function trigger signal of institute of function triggering pin is possibly can not
Directly triggering sequential control circuit 22 is lower into a functional mode, such as voltage.Therefore it just needs to first pass through conversion circuit 26
Conversion, such as boost, then be transferred to sequential control circuit 22.The present embodiment does not limit the conversion aspect of conversion circuit 26,
Such as the conversion comprising 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, drive circuit board 2b
It is with the main difference of drive circuit board 2, circuit board 21 has the function of that a connection structure 211 is adjacent to pin group 24.Connection
Structure 211 can be connect so that function pin group 24 receives signal input unit input with a signal input unit (figure is not shown)
Signal.Connection structure 211 is, for example, a concaveconvex structure (such as plural groove), and signal input unit is sticked in connection structure
211 and be electrically connected with function pin group 24.In addition, connection structure 211 may include at least positioning piece PE, in this, locating piece PE
By taking concave point as an example, signal input unit can obtain locating effect by locating piece PE.
The technical characteristic of the person of should be noted, above-described embodiment can be used alone or merge use.
Fig. 6 is the schematic diagram of a display module 4 of one embodiment of the invention, as shown in fig. 6, display module 4 includes one aobvious
Show panel 40 and one drive circuit plate 3.Display panel 40 be, for example, liquid crystal display panel, LED display panel or other
The display panel of form.Drive circuit board 3 can for above-mentioned drive circuit board 2,2a, 2b it is any or combinations thereof.Drive circuit board 3
It is electrically connected with display panel 40 to drive display panel 40 to show picture.Since the technical characteristic of drive circuit board 3 can refer to
It states embodiment and learns, therefore repeated no more in this.
Fig. 7 is a kind of flow chart of the automated testing method of display panel of one embodiment of the invention.Automatic test
Method can be applied to suitable display panel, for example, liquid crystal display panel, LED display panel or other forms it is aobvious
Show panel.Automated testing method comprises the steps of the circuit board for providing and having the function of a pin group, has on circuit board
One sequential control circuit is to drive display panel, and function pin group includes function triggering pin and one is grounded pin, and
Function triggering pin is electrically connected (step S01) with sequential control circuit；A function trigger signal is inputted with a probe to touch in function
Pin is sent out, carries out a functional mode (step S02) so as to triggering sequential control circuit；And with one ground connection letter of another probe input
Number in ground connection pin (step S03).Above-mentioned functional mode is, for example, a burn-in test of display panel.
Since the technical characteristic of automated testing method is specified in above-described embodiment together, therefore repeated no more in this.It needs
The person of attention, the automation festing method of the present embodiment by the mode of probe come input function trigger signal, ground signalling and/or
Other signals, and can achieve the purpose that automate survey formula, and then promote speed of production and product yield.
In conclusion being borrowed in the automated testing method of drive circuit board of the invention, display module and display panel
By a function pin group is arranged on circuit boards, and the function triggering pin of function pin group is electrically connected with sequential control circuit,
In this way, sequential control circuit is triggered and carries out a functional mode when function triggering pin receives a function trigger signal,
Such as a test function, such as burn-in test.In this way, staff need not just make corresponding connecting line according to product type,
Because all products are all that thus can solve the above problem, and be conducive to import display module with same connecting line
Automatic test, and can be shortened manufacturing time and promote product yield.
The foregoing is merely illustratives, rather than are restricted.It is any without departing from spirit and scope of the invention, and to its into
Capable equivalent modifications or change, are intended to be limited solely by scope of the claims.
Claims (8)
1. a kind of drive circuit board, to drive a display panel, which is characterized in that, include:
One circuit board；
One sequential control circuit is set on the circuit board；
A connector is set to the first position on the circuit board；And
One function pin group, the second position being set on the circuit board simultaneously include function triggering pin and one connect
Foot, function triggering pin are electrically connected with the sequential control circuit；
Wherein, the automated testing method of the display panel includes:
The drive circuit board is provided；
A function trigger signal is inputted with a probe and triggers pin in the function, carries out a survey so as to triggering the sequential control circuit
Try function；And
A ground signalling is inputted in the ground connection pin with another probe.
2. drive circuit board as described in claim 1, which is characterized in that the function pin group also includes a power pin,
Receive a power supply voltage signal.
3. drive circuit board as described in claim 1, which is characterized in that the function pin group is constructed with a connector.
4. drive circuit board as described in claim 1, which is characterized in that the function pin group is constructed with a golden finger.
5. drive circuit board as described in claim 1, which is characterized in that a pin spacing of the function pin group between
Between 0.4mm and 2.8mm.
6. drive circuit board as described in claim 1, which is characterized in that the function trigger pin a pin width between
Between 0.25mm and 1.65mm.
7. drive circuit board as described in claim 1, which is characterized in that also include:
One mask part, the mask function pin group.
8. a kind of display module, characterized by comprising:
One display panel；And
The described in any item drive circuit boards of claim 1 to 7, are electrically connected with the display panel.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN105445642A CN105445642A (en) | 2016-03-30 |
| CN105445642B true 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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| 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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| 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 |
| 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 |
| 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 |
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| CN105445642A (en) | 2016-03-30 |
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