CN203616549U - Backlight-module detecting device and backlight-module detecting circuit - Google Patents
Backlight-module detecting device and backlight-module detecting circuit Download PDFInfo
- Publication number
- CN203616549U CN203616549U CN201320856103.9U CN201320856103U CN203616549U CN 203616549 U CN203616549 U CN 203616549U CN 201320856103 U CN201320856103 U CN 201320856103U CN 203616549 U CN203616549 U CN 203616549U
- Authority
- CN
- China
- Prior art keywords
- pick
- lamp bar
- unit
- lamp
- connector
- 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.)
- Expired - Lifetime
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000003466 welding Methods 0.000 claims abstract description 39
- 238000012360 testing method Methods 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
Images
Abstract
The utility model discloses a backlight-module detecting device. A backlight module comprises n lamp bars. The backlight-module detecting device comprises a photoelectric conversion module; when the connection between the backlight-module detecting device and the backlight module is normal, the n lamp bars are conducted with the photoelectric conversion module in series. The utility model also discloses a backlight-module detecting circuit using the backlight-module detecting device. The backlight-module detecting device and the backlight-module detecting circuit disclosed by the utility model have the advantages that when the welding of the backlight module is abnormal, the condition of abnormal welding can be conveniently detected according to fed-back information of the photoelectric conversion module.
Description
Technical field
The utility model relates to display technique field, particularly relates to a kind of pick-up unit and testing circuit of backlight module.
Background technology
Compared with hard printed circuit board, flexible printed circuit board (Flexible Printed Circuit, be called for short FPC) have and be easy to the advantages such as bending, so, flexible printed circuit board is for the backlight module of the multiple electronic installation such as mobile phone, notebook computer, imaging device, digital camera, air-conditioning or rinsing maching, to connect the grid-driving integrated circuit and the source electrode driven integrated circuit that are arranged between display panels and printed circuit board (PCB).
As shown in Figure 1, backlight module 10 of the prior art comprises two lamp bars: the first lamp bar 11, the second lamp bar 12, the first lamp bars 11, the second lamp bar 12 all have multiple light sources 13.General, lamp bar is positioned at lamp bar FPC upper (this,, for the common practise of this area, does not specifically illustrate at this), in the preparation process of backlight module 10, need to weld lamp bar FPC.In welding process, corresponding pin (PIN) need to be welded.As shown in Figure 1, weld corresponding 4 pairs of adjacent leads at welding region 14: first couple of the first pin 11a connects first couple of the second pin 11a ', second couple of the first pin 12a connects second couple of the second pin 12a ', the 3rd couple of the first pin 11b connects the 3rd couple of the second pin 11b ', and the 4th couple of the first pin 12b connects the 4th couple of the second pin 12b '.
But; in welding process; often there will be the situation of adjacent leads abnormal welding; for example; adjacent leads connects weldering (as first couple of the first pin 11a, first couple of the second pin 11a ', second couple of the first pin 12a, second couple of the second pin 12a ' are welded together); or pad contraposition is crooked (as second couple of the first pin 12a connects first couple of the second pin 11a '; the 3rd couple of the first pin 11b connects second couple of the second pin 12a '; the 4th couple of the first pin 12b connects the 3rd couple of the second pin 11b '), etc.In the time of adjacent leads abnormal welding, can cause light source 13 not work completely or part bad, thereby make backlight module 10 operation irregularities.
Therefore, in the time of backlight module abnormal welding, how can detect easily the situation of abnormal welding, become the problem that those skilled in the art need to solve.
Utility model content
In view of this, the utility model provides a kind of pick-up unit for detection of backlight module circuit welding situation, described backlight module comprises n lamp bar, described pick-up unit comprises photoelectric conversion module, when described pick-up unit is connected normally with described backlight module, the conducting of connecting with described photoelectric conversion module of described n lamp bar.
Compared with prior art, the pick-up unit that the utility model provides has the following advantages:
In the pick-up unit for detection of backlight module providing at the utility model, described pick-up unit comprises photoelectric conversion module, when described pick-up unit is connected normally with described backlight module, the conducting of connecting with described photoelectric conversion module of described n lamp bar, compared with prior art, when by the connection corresponding with described backlight module of described pick-up unit, n lamp bar forms a series loop, and between this loop, be in series with described photoelectric conversion module, by this photoelectric conversion module and described lamp bar institute feedack, can detect easily the situation of the pin welding of backlight module.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of backlight module in prior art;
Fig. 2 is the schematic diagram of the backlight module testing circuit of the utility model the first embodiment;
Fig. 3-Fig. 7 is the schematic diagram that the pick-up unit of the utility model the first embodiment detects adjacent leads abnormal welding;
Fig. 8 is the schematic diagram of the backlight module testing circuit of the utility model the second embodiment;
Fig. 9 is the schematic diagram of the backlight module testing circuit of the utility model the 3rd embodiment;
Figure 10 is the schematic diagram of the backlight module testing circuit of the utility model the 4th embodiment.
Embodiment
Below in conjunction with schematic diagram, pick-up unit of the present utility model and backlight module testing circuit are described in more detail, wherein represent preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here, and still realize advantageous effects of the present utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
In the following passage, with way of example, the utility model is more specifically described with reference to accompanying drawing.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of aid illustration the utility model embodiment lucidly.
Core concept of the present utility model is, it is a kind of for detection of backlight module detection arrangement that the utility model provides, described pick-up unit comprises a photoelectric conversion module, when described pick-up unit is connected when normal with the normal described backlight module of welding, the n of described backlight module lamp bar and described photoelectric conversion module are connected in series.When by the corresponding connection of circuit of described pick-up unit and described backlight module, between n lamp bar, form a loop, and between this loop, be in series with described photoelectric conversion module, by this photoelectric conversion module and described light source, can detect easily the situation of the adjacent leads welding of backlight module.
Below enumerate several embodiment of described pick-up unit and backlight module testing circuit, to clearly demonstrate content of the present utility model, will be clear that, content of the present utility model is not restricted to following examples, and other improvement by those of ordinary skills' routine techniques means are also within thought range of the present utility model.
The first embodiment
Refer to Fig. 2-Fig. 7 and illustrate the first embodiment of the present invention, wherein, Fig. 2 is the schematic diagram of the backlight module testing circuit of the utility model the first embodiment; Fig. 3-Fig. 7 is the schematic diagram that the pick-up unit of the utility model the first embodiment detects adjacent leads abnormal welding.In Fig. 2-Fig. 7, reference number represents the parts that the statement identical with Fig. 1 is same as the prior art.
As shown in Figure 2, described backlight module testing circuit 1 comprises backlight module 10 and pick-up unit 20.Wherein, in the present embodiment, described backlight module 10 comprises two lamp bars: the first lamp bar 11 and the second lamp bar 12, described the first lamp bar 11 and the second lamp bar 12 all have 6 light sources 13, but the quantity of the described light source 13 that each lamp bar comprises is not done concrete restriction, it can be 1,2,5,8,10 etc., and the quantity of the described light source 13 that different lamp bars comprises can be different.General, lamp bar is positioned at lamp bar FPC upper (this,, for the common practise of this area, does not specifically illustrate at this), in the preparation process of backlight module 10, need to weld lamp bar FPC.In welding process, corresponding pin (PIN) need to be welded.As shown in Figure 2, weld corresponding 4 pairs of corresponding pins at welding region 14: first couple of the first pin 11a connects first couple of the second pin 11a ', second couple of the first pin 12a connects second couple of the second pin 12a ', the 3rd couple of the first pin 11b connects the 3rd couple of the second pin 11b ', and the 4th couple of the first pin 12b connects the 4th couple of the second pin 12b '.In the present embodiment, described light source 13 is LED light source.
Each described lamp bar all has the first link and the second link, in the present embodiment, the corresponding first pair of corresponding pin of the first link 11A (11a and 11a ') of described the first lamp bar 11, corresponding the 3rd pair of corresponding pin of the second link 11B (11b and 11b ') of described the first lamp articles 11, the first corresponding second pair of corresponding pin of link 12A (12a and 12a ') of described the second lamp bar 12, corresponding the 4th pair of corresponding pin of the second link 12B (12b and 12b ') of described the second lamp articles 12.
Described pick-up unit 20 comprises two pairs of lamp bar incoming ends, and every pair of lamp bar incoming end all has the first connector and the second connector.Wherein, corresponding the first link 11A that connects first lamp bar 11 of the first connector 21A of first pair of lamp bar incoming end, the corresponding second link 11B that connects first lamp bar 11 of the second connector 21B of first pair of lamp bar incoming end; The corresponding first link 12A that connects second lamp bar 12 of the first connector 22A of second pair of lamp bar incoming end, the corresponding second link 12B that connects second lamp bar 12 of the second connector 22B of second pair of lamp bar incoming end.The first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end are used for accessing power supply.The photoelectric conversion module 23 of connecting between the first connector 22A of second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end, when by described pick-up unit 20 during with the corresponding connection of described backlight module 10, make to form a loop between the first lamp bar 11 and the second lamp bar 12, and between this loop, be in series with described photoelectric conversion module 23, by this photoelectric conversion module 23 and described light source 13, can detect easily the situation of the adjacent leads welding of backlight module 10.
Described photoelectric conversion module 23 comprises a LED lamp 231, described LED lamp 231 is series between the first connector 22A of described second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end, but, described photoelectric conversion module 23 is not limited to comprise a LED lamp 231, described LED lamp 231 can also be replaced by electroluminescent lamps such as phototriodes, also within thought range of the present utility model.In the present embodiment, described photoelectric conversion module 23 also comprises a vent diverter 232, and described vent diverter 232 is parallel to the two ends of described LED lamp 231, thinks that described LED lamp 231 shunts.
As shown in Figure 3, in the time that described welding region 14 occurs that pad contraposition is crooked, for example, second couple of the first pin 12a connects first couple of the second pin 11a ', the 3rd couple of the first pin 11b connects second couple of the second pin 12a ', the 4th couple of the first pin 12b connects the 3rd couple of the second pin 11b ', by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), do not form the loop of electric current, so, all described light sources 13 do not work, and, described LED lamp 231 does not work,
As shown in Figure 4, if connect weldering between first couple of the first pin 11a and second couple of the first pin 12a, by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, but, company between first couple of the first pin 11a and second couple of the first pin 12a welds described first lamp bar 11 and described LED lamp 231 short circuits, so, the light source 13 of described first lamp bar 11 does not work, the light source 13 of described second lamp bar 12 is bright, and, described LED lamp 231 does not work,
As shown in Figure 5, if connect weldering between second couple of the first pin 12a and the 3rd couple of the first pin 11b, by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, but, company between second couple of the first pin 12a and the 3rd couple of the first pin 11b welds described LED lamp 231 short circuits, so, all described light sources 13 are bright, and described LED lamp 231 does not work;
As shown in Figure 6, if connect weldering between the 3rd couple of the first pin 11b and the 4th couple of the first pin 12b, by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, but, the weldering of company between the 3rd couple of the first pin 11b and the 4th couple of the first pin 12b is by described second lamp articles 12 and described LED lamp 231 short circuits, so, the light source 13 of described first lamp bar 11 is bright, the light source 13 of described second lamp bar 12 does not work, and, described LED lamp 231 does not work,
As shown in Figure 7, at least one pair of adjacent leads rosin joint (as first pair of corresponding pin), by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), do not form the loop of electric current, so all described light sources 13 do not work, and described light emitting diode or LED lamp 231 do not work;
In the time that the welding of described welding region 14 is intact, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, all described lamp bar and described LED lamps 231 are connected in series, so, all described light sources 13 are bright, and described LED lamp 231 is bright.
The second embodiment
Refer to Fig. 8, Fig. 8 is the schematic diagram of the backlight module testing circuit of the utility model the second embodiment.In Fig. 8, reference number represents the parts that the statement identical with Fig. 2 is identical with the first embodiment.The pick-up unit 2 of described the second embodiment is basic identical with the pick-up unit 1 of described the first embodiment, its difference is: the photoelectric conversion module 33 of described pick-up unit 30 comprises an infrared transmitting tube 331 and infrared receiving tube 332, described infrared transmitting tube 331 is series between the first connector 22A of second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end, and described infrared receiving tube 332 receives the light signal of described infrared transmitting tube 331.
But, described photoelectric conversion module 33 is not limited to as a pair of infrared transmitting tube 331 and infrared receiving tube 332, as long as thering is a luminescence unit and the light activated element accepting described light signal and be converted into electric signal, also within thought range of the present utility model.In the present embodiment, described infrared transmitting tube is series between the first connector 22A of second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end, the collector C of described infrared receiving tube connects a noble potential, the emitter E of described infrared receiving tube connects an electronegative potential, general, the divider resistance of connecting between the collector E of described infrared receiving tube and electronegative potential, this is what it will be appreciated by those skilled in the art that, therefore not to repeat here.Whether the collector E of described infrared receiving tube connects a test pad 333 for detection of electric signal, have abnormal by the electrical level judging welding of described test pad 333: abnormal welding, and described test pad 333 is low level; Welding is normal, and described test pad 333 is high level, thereby fool proof effectively reduces to slip up artificially.
In the time that described welding region 14 occurs that pad contraposition is crooked, for example, second couple of the first pin 12a connects first couple of the second pin 11a ', the 3rd couple of the first pin 11b connects second couple of the second pin 12a ', the 4th couple of the first pin 12b connects the 3rd couple of the second pin 11b ', by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), do not form the loop of electric current, all described light sources 13 do not work, and, described infrared transmitting tube 331 does not work, described test pad 333 is low level,
If connect weldering between first couple of the first pin 11a and second couple of the first pin 12a, by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, but, company between first couple of the first pin 11a and second couple of the first pin 12a welds described first lamp bar 11 and described LED lamp 231 short circuits, so, the light source 13 of described first lamp bar 11 does not work, the light source 13 of described second lamp bar 12 is bright, and, described infrared transmitting tube 331 does not work, described test pad 333 is low level,
If connect weldering between second couple of the first pin 12a and the 3rd couple of the first pin 11b, by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, but, company between second couple of the first pin 12a and the 3rd couple of the first pin 11b welds described LED lamp 231 short circuits, so, all described light sources 13 are bright, and, described infrared transmitting tube 331 does not work, described test pad 333 is low level,
If connect weldering between the 3rd couple of the first pin 11b and the 4th couple of the first pin 12b, by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, but, the weldering of company between the 3rd couple of the first pin 11b and the 4th couple of the first pin 12b is by described second lamp articles 12 and described LED lamp 231 short circuits, so, the light source 13 of described first lamp bar 11 is bright, the light source 13 of described second lamp bar 12 does not work, and, described infrared transmitting tube 331 does not work, described test pad 333 is low level,
At least one pair of adjacent leads rosin joint (as first pair of adjacent leads), by corresponding with described backlight module 10 described pick-up unit 20 connection, now, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), do not form the loop of electric current, so all described light sources 13 do not work, and, described infrared transmitting tube 331 does not work, and described test pad 333 is low level;
In the time that the welding of described welding region 14 is intact, between power access end (the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end), form the loop of electric current, all described lamp bar and described infrared transmitting tubes 331 are connected in series, so, all described light sources 13 are bright, and described infrared transmitting tube 331 is bright, described test pad 333 is high level.
The 3rd embodiment
Refer to Fig. 9, Fig. 9 is the schematic diagram of the backlight module testing circuit of the utility model the 3rd embodiment.In Fig. 9, reference number represents the parts that the statement identical with Fig. 8 is identical with the second embodiment.The pick-up unit 40 of described the 3rd embodiment is basic identical with the pick-up unit 30 of described the second embodiment, its difference is: the photoelectric conversion module 43 of described pick-up unit 40 comprises an infrared transmitting tube 431 and infrared receiving tube 432, described photoelectric conversion module 43 is a pair of infrared transmitting tube and infrared receiving tube, the emitter C of described infrared receiving tube connects a test pad 433 for detection of electric signal, general, the divider resistance of connecting between the emitter C of described infrared receiving tube and noble potential, this is what it will be appreciated by those skilled in the art that, therefore not to repeat here.Whether the electrical level judging welding by described test pad 433 has abnormal: abnormal welding, and described test pad 433 is low level; Welding is normal, and described test pad 433 is high level, thereby fool proof effectively reduces to slip up artificially.Wherein, concrete deterministic process can be with reference to the second embodiment, and therefore not to repeat here.
The 4th embodiment
Refer to Figure 10, Figure 10 is the schematic diagram of the backlight module testing circuit of the utility model the 4th embodiment.In Figure 10, reference number represents the parts that the statement identical with Fig. 2 is identical with the first embodiment.The pick-up unit 50 of described the 4th embodiment is basic identical with the pick-up unit 20 of described the first embodiment, and its difference is: described backlight module testing circuit 4 comprises backlight module 10 and pick-up unit 50.Wherein, in the present embodiment, described backlight module 10 comprises three lamps article: the first lamp articles 11, the second lamp articles 12 and the 3rd lamp articles 43, described the first lamp articles 11, the second lamp articles 12 and the 3rd lamp articles 43 all has 5 light sources 13.Weld corresponding 6 pairs of adjacent leads at welding region 14: first couple of the first pin 11a connects first couple of the second pin 11a ', second couple of the first pin 12a connects second couple of the second pin 12a ', the 3rd couple of the first pin 11b connects the 3rd couple of the second pin 11b ', the 4th couple of the first pin 12b connects the 4th couple of the second pin 12b ', the 5th couple of the first pin 13a connects the 5th couple of the second pin 13a ', and the 6th couple of the first pin 13b connects the 6th couple of the second pin 13b '.
The corresponding first pair of adjacent leads of the first link 11A (11a and 11a ') of described the first lamp bar 11, corresponding the 3rd pair of adjacent leads of the second link 11B (11b and 11b ') of described the first lamp articles 11, the corresponding second pair of adjacent leads of the first link 12A (12a and 12a ') of described the second lamp bar 12, corresponding the 4th pair of adjacent leads of the second link 12B (12b and 12b ') of described the second lamp articles 12, corresponding the 5th pair of adjacent leads of the first link 13A (13a and 13a ') of described the 3rd lamp articles 13, corresponding the 6th pair of adjacent leads of the second link 13B (13b and 13b ') of described the 3rd lamp articles 13.
Described pick-up unit 20 comprises three pairs of lamp bar incoming ends, wherein, the corresponding first link 11A that connects first lamp bar 11 of the first connector 21A of first pair of lamp bar incoming end, the corresponding second link 11B that connects first lamp bar 11 of the second connector 21B of first pair of lamp bar incoming end; The corresponding first link 12A that connects second lamp bar 12 of the first connector 22A of second pair of lamp bar incoming end, the corresponding second link 12B that connects second lamp bar 12 of the second connector 22B of second pair of lamp bar incoming end; The first connector 23A of the 3rd pair of lamp article incoming end is corresponding connects the first link 13A of described the 3rd lamp articles 13, and the second connector 23B of the 3rd pair of lamp article incoming end is corresponding connects the second link 13B of described the 3rd lamp articles 13.The first connector 21A of first pair of lamp article incoming end and the second connector 23B of the 3rd pair of lamp article incoming end are used for accessing power supply.
Between the second connector 23A of the 3rd pair of lamp article incoming end and the second connector 22B of second pair of lamp article incoming end, connect, the photoelectric conversion module 23 of connecting between the first connector 22A of second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end, when by described pick-up unit 20 during with the corresponding connection of described backlight module 10, make the first lamp bar 11, between the second lamp articles 12 and the 3rd lamp articles 43, form a loop, and between this loop, be in series with described photoelectric conversion module 23, by this photoelectric conversion module 23 and described light source 13, also can detect easily the situation of the adjacent leads welding of backlight module 10, this is what it will be appreciated by those skilled in the art that, therefore not to repeat here.
In the above-described embodiments, described pick-up unit comprises: n is to lamp bar incoming end, and every pair of lamp bar incoming end all has the first connector and the second connector; Second connector and the j+1 of j to lamp article incoming end is connected in series the first connector of lamp article incoming end, the first connector of the 1st pair of lamp article incoming end and n the second connector access power supply to lamp article incoming end; Has the described photoelectric conversion module of connecting between the second connector of a pair of lamp bar incoming end and the first connector of lower a pair of lamp bar incoming end at least; In the time that described pick-up unit connects described backlight module, i is to corresponding the first link that connects i lamp article of the first connector of lamp article incoming end, second link of i to i lamp of the corresponding connection of the second connector of lamp article incoming end article; Wherein, n is more than or equal to 2 integer, 1≤i≤n, 1≤j < n.
But, described pick-up unit of the present utility model is not limited to above-described embodiment, for example, in the first embodiment, can also be: the corresponding first link 12A that connects second lamp bar 12 of the first connector 21A of first pair of lamp bar incoming end, the corresponding first link 11A that connects first lamp bar 11 of the first connector 22A of second pair of lamp bar incoming end, the corresponding second link 12B that connects second lamp bar 12 of the second connector 21B of first pair of lamp bar incoming end, the corresponding second link 11B that connects first lamp bar 11 of the second connector 22B of second pair of lamp bar incoming end, the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end are used for accessing power supply, the photoelectric conversion module 23 of connecting between the first connector 22A of second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end, can also be by this photoelectric conversion module and described lamp bar institute feedack, can detect easily the situation of the adjacent leads welding of backlight module, also within thought range of the present utility model.
In addition, in the first embodiment, can also be: the corresponding first link 12A that connects second lamp bar 12 of the first connector 21A of first pair of lamp bar incoming end, the corresponding first link 11A that connects first lamp bar 11 of the first connector 22A of second pair of lamp bar incoming end, the corresponding second link 12B that connects second lamp bar 12 of the second connector 21B of first pair of lamp bar incoming end, the corresponding second link 11B that connects first lamp bar 11 of the second connector 22B of second pair of lamp bar incoming end, the first connector 22A of second pair of lamp bar incoming end and the second connector 21B of first pair of lamp bar incoming end are used for accessing power supply, the photoelectric conversion module 23 of connecting between the first connector 21A of first pair of lamp bar incoming end and the second connector 22B of second pair of lamp bar incoming end, can also be by this photoelectric conversion module and described lamp bar institute feedack, can detect easily the situation of the adjacent leads welding of backlight module, also within thought range of the present utility model.
In a word, as long as while making the normal described backlight module of described pick-up unit connecting welding, the conducting of connecting with described photoelectric conversion module of described n lamp bar.
In sum, the utility model provides a pick-up unit and backlight module testing circuit, in the pick-up unit for detection of backlight module providing at the utility model, described pick-up unit comprises a photoelectric conversion module, when described pick-up unit is connected when normal with the normal described backlight module of welding, the n of described backlight module lamp bar and described photoelectric conversion module are connected in series.Compared with prior art, the pick-up unit that the utility model provides has the following advantages:
Provide in a kind of pick-up unit and backlight module testing circuit at the utility model, when by the connection corresponding with described backlight module of described pick-up unit, n lamp bar forms a series loop, and between this loop, be in series with described photoelectric conversion module, by this photoelectric conversion module and described lamp bar institute feedack, can detect easily the situation of the adjacent leads welding of backlight module.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (10)
1. the pick-up unit of a backlight module, it is characterized in that, described backlight module comprises n lamp bar, and described pick-up unit comprises photoelectric conversion module, when described pick-up unit is connected normally with described backlight module, the conducting of connecting with described photoelectric conversion module of described n lamp bar.
2. pick-up unit as claimed in claim 1, is characterized in that, each described lamp bar all has the first link and the second link, and described pick-up unit also comprises:
N is to lamp bar incoming end, and every pair of described lamp bar incoming end all has the first connector and the second connector;
When described pick-up unit is connected with described backlight module when normal, i is to corresponding described the first link that connects i described lamp article of described first connector of described lamp article incoming end, and i is to corresponding described the second link that connects i described lamp article of described second connector of described lamp article incoming end;
Wherein, n is more than or equal to 2 integer, 1≤i≤n.
3. pick-up unit as claimed in claim 2, is characterized in that, described pick-up unit also comprises:
Described second connector and the j+1 of j to described lamp article incoming end is connected in series described first connector of described lamp article incoming end, described first connector of the 1st pair of described lamp article incoming end and n described the second connector access power supply to described lamp article incoming end;
The described photoelectric conversion module of connecting between the second connector of lamp bar incoming end and the first connector of lower a pair of described lamp bar incoming end described at least one pair of;
Wherein, 1≤j < n.
4. pick-up unit as described in any one in claims 1 to 3, it is characterized in that, described photoelectric conversion module comprises an electroluminescent lamp, when described pick-up unit is connected when normal with the normal described backlight module of welding, and the conducting of connecting with described electroluminescent lamp of described n lamp bar.
5. pick-up unit as claimed in claim 4, is characterized in that, described photoelectric conversion module also comprises a vent diverter, and described vent diverter is parallel to the two ends of described electroluminescent lamp.
6. pick-up unit as described in any one in claims 1 to 3, it is characterized in that, described photoelectric conversion module is a pair of infrared transmitting tube and infrared receiving tube, when described pick-up unit is connected when normal with the normal described backlight module of welding, a described infrared transmitting tube and described n lamp bar is connected in series, the collector of described infrared receiving tube connects a noble potential, and the emitter of described infrared receiving tube connects an electronegative potential.
7. pick-up unit as claimed in claim 6, is characterized in that, the collector of described infrared receiving tube connects a test pad for detection of electric signal.
8. pick-up unit as claimed in claim 6, is characterized in that, the emitter of described infrared receiving tube connects a test pad for detection of electric signal.
9. pick-up unit as claimed in claim 1, is characterized in that, each described lamp bar has m light source, and described light source is LED lamp, and m is positive integer.
10. a backlight module testing circuit, is characterized in that, comprises backlight module and pick-up unit as described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856103.9U CN203616549U (en) | 2013-12-23 | 2013-12-23 | Backlight-module detecting device and backlight-module detecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856103.9U CN203616549U (en) | 2013-12-23 | 2013-12-23 | Backlight-module detecting device and backlight-module detecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203616549U true CN203616549U (en) | 2014-05-28 |
Family
ID=50769180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320856103.9U Expired - Lifetime CN203616549U (en) | 2013-12-23 | 2013-12-23 | Backlight-module detecting device and backlight-module detecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203616549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983453A (en) * | 2018-07-26 | 2018-12-11 | 武汉天马微电子有限公司 | Detection device, detection jig and the display module of backlight module |
-
2013
- 2013-12-23 CN CN201320856103.9U patent/CN203616549U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983453A (en) * | 2018-07-26 | 2018-12-11 | 武汉天马微电子有限公司 | Detection device, detection jig and the display module of backlight module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102830323B (en) | Device and method for detecting welding abnormality of electrostatic discharge protection chip | |
| CN202419354U (en) | Led lamp panel | |
| CN205280867U (en) | Connecting wire detection device | |
| CN203616549U (en) | Backlight-module detecting device and backlight-module detecting circuit | |
| CN202093115U (en) | Detection device for detecting connection status of chip and circuit substrate | |
| CN202488822U (en) | Light-emitting component control circuit and short-circuit detection circuit applied to same | |
| CN101526577A (en) | Connector detection tool | |
| CN201837695U (en) | Mobile terminal data line detection circuit and detection device | |
| CN104515946A (en) | Load device for detection | |
| CN205506989U (en) | Point screen tool | |
| CN204405776U (en) | A kind of detection tool | |
| CN205027852U (en) | Electric wire breakpoint detector | |
| CN207488412U (en) | A kind of Beam Detector | |
| CN202305718U (en) | Batch test device of conductive connection wire | |
| CN104122481A (en) | Multifunction cable detection device | |
| CN201167423Y (en) | Circuit for equalizing current | |
| CN202075356U (en) | Detection device for multi-core plug base pin signal line | |
| CN203658515U (en) | An LED system control panel testing apparatus | |
| CN201281739Y (en) | Test fixture for electronic equipment loop | |
| CN208125852U (en) | A kind of higher simple detection FPC of cost performance extends the testing tool of the logical short circuit of winding displacement | |
| CN203365910U (en) | Camera module auto-focus function test system | |
| CN103401973B (en) | The testing apparatus of deck and test macro | |
| CN202471877U (en) | Detection apparatus for open circuit and short circuit | |
| CN105067955A (en) | Electric wire breakpoint detector | |
| CN108279361B (en) | Test method and test circuit for charging port of intelligent terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |