CN104575385A - Organic light emitting display device array substrate and detecting method - Google Patents
Organic light emitting display device array substrate and detecting method Download PDFInfo
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Abstract
The invention discloses an organic light emitting display device array substrate which comprises a plurality of display screens with grid drive circuits. Each display screen comprises a plurality of grid drive detecting units for detecting the functions of the corresponding grid drive circuit, and the grid drive detecting units comprise input units, first control units, second control units, switches and output units. The input units are used for inputting input signals. The output units output output signals. The switches regulate and control the input signals under the action of the first control units and the second control units to form the output signals. The invention further provides a detecting method of the organic light emitting display device array substrate. According to the organic light emitting display device array substrate, the function of a GIP circuit can be detected after an array manufacturing process is finished, the organic light emitting display device array substrate with the poor GIP circuit obtained after detection can be repaired in time or scraped, and manufacturing cost can be lowered.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of organic light-emitting display device array base palte and detection method.
Background technology
In light emitting-type panel display apparatus, organic light-emitting display device has the characteristic injecting the excellences such as wide viewing angle, high-contrast and short response time.Therefore, organic light-emitting display device is widely used in the products such as such as digital camera, video camera, notebook computer, flat board, mobile phone.
In the manufacturing process of organic light-emitting display device, there are these situations following sometimes:
1) shield body not work;
2) shield the display of body front portion picture normal, the display of rear portion picture is abnormal;
3) display of body a line is shielded abnormal.
If the output of above three kinds of situations to gate driver circuit (GIP circuit) is not monitored, be difficult to the problem that judgement is GIP circuit.
For these reasons, usually adopt in the industry the mode by carrying out monitoring in real time to GIP circuit at present, the output by GIP circuit is connected on a flexible PCB (FPC), monitors it export by flexible PCB (FPC).But, if adopt the output monitoring every one-level in this way, then every one-level to be exported and all be connected to FPC place, add frame size and FPC length, have impact on product appearance, cause meeting customer need.
In addition, be then carry out entrusting outer test to detect GIP circuit.But carry out entrusting outer test not only costly, and be all damage type test, even if problem can't not be on GIP circuit, this organic light-emitting display device array base palte also cannot utilize again.
Summary of the invention
The object of the invention is to, a kind of organic light-emitting display device array base palte is provided, achieve and can detect the function of GIP circuit after array process, avoid the change of outward appearance and cost-saving.
For solving the problems of the technologies described above, the invention provides a kind of organic light-emitting display device array base palte, comprise: multiple display screens with gate driver circuit, each display screen comprises multiple raster data model detecting unit for detecting gate driver circuit function, described raster data model detecting unit comprises: input block, first control module, the second control module, switch and output unit; Wherein, described input block is used for the input of input signal; The output of described output unit for outputing signal; Described switch forms described output signal for carrying out regulation and control to described input signal under the effect of described first control module and described second control module.
Optionally, for described organic light-emitting display device array base palte, described in the first order, the input block of raster data model detecting unit is connected to start signal end, and described in previous stage, the output unit of raster data model detecting unit is connected to the input block of raster data model detecting unit described in next stage.
Optionally, for described organic light-emitting display device array base palte, described first control module is connected to one first signal end, receives the first control signal that described first signal end sends and exports described switch to; Described second control module is connected to a secondary signal end, receives the second control signal that described secondary signal end sends and exports described switch to.
Optionally, for described organic light-emitting display device array base palte, described switch comprises the first switch and second switch, described first control module is connected to the grid of described first switch and described second switch, described input block is connected to the first electrode of described first switch, the first electrode ground connection of described second switch.
Optionally, for described organic light-emitting display device array base palte, described switch also comprises the 3rd switch and the 4th switch, described second control module is connected to the first electrode of described 3rd switch, the grid of described 3rd switch is connected to the second electrode of described first switch, second Electrode connection of described 3rd switch is to the first electrode of described 4th switch, the grid of described 4th switch is connected to the second electrode of described second switch, the second Electrode connection supply voltage of described 4th switch.
Optionally, for described organic light-emitting display device array base palte, described output unit comprises one the 5th switch, the grid of described 5th switch is connected to the second electrode of described first switch, first Electrode connection of described 5th switch to the second electrode of described 3rd switch, the second sub-test side of Electrode connection to of described 5th switch.
Optionally, for described organic light-emitting display device array base palte, described raster data model detecting unit also comprises a voltage regulation unit, described voltage regulation unit comprises the 6th switch and an electric capacity, described electric capacity one end is connected to the grid of described 3rd switch, the other end of described electric capacity is connected to the grid of described 6th switch and the first electrode of described 5th switch, first Electrode connection of described 6th switch is to supply voltage,, the second Electrode connection of the 6th switch is to the second electrode of described second switch.
Optionally, for described organic light-emitting display device array base palte, described organic light-emitting display device array base palte also comprises the first test side and the second test side, and described first test side and the second test side are connected to multiple described sub-test side respectively.
Optionally, for described organic light-emitting display device array base palte, the quantity of described raster data model detecting unit is N number of, N is natural number, wherein, the sub-test side of the described raster data model detecting unit of even number line is in parallel, and is connected to described first test side, the sub-test side of the raster data model detecting unit of odd-numbered line is in parallel, and is connected to described second test side.
Accordingly, the present invention also provides a kind of detection method of described organic light-emitting display device array base palte, comprising:
In the T1 time period, input block and first control module of first order raster data model detecting unit provide low-potential signal, and the second control module provides high potential signal, and output unit exports noble potential;
The T2 time period after next-door neighbour's T1 time period, input block and first control module of first order raster data model detecting unit provide high potential signal, and the second control module provides low-potential signal, and output unit exports electronegative potential; Meanwhile, the electronegative potential that exports of the output unit of first order raster data model detecting unit is as the input signal of the input block of next stage raster data model detecting unit;
In the T3 time period, the input block of first order raster data model detecting unit provides high potential signal, and the first control module provides low-potential signal, and the second control module provides noble potential, and output unit exports noble potential; Meanwhile, the noble potential that exports of the output unit of first order raster data model detecting unit is as the input signal of described next stage raster data model detecting unit input block.
In organic light-emitting display device array base palte provided by the invention and detection method, each display screen comprises multiple raster data model detecting unit, and the switch in raster data model detecting unit carries out regulation and control to input signal and forms output signal under the effect of the first control module and the second control module.Compared to existing technology, organic light-emitting display device array base palte of the present invention can detect the function of GIP circuit after array process, and what after detecting, GIP circuit was bad can carry out repairing or scrapping, and avoids the waste causing processing procedure.
Accompanying drawing explanation
Fig. 1 is the structural representation of organic light-emitting display device array base palte in the present invention;
Fig. 2 is the structural representation of raster data model detecting unit in the present invention;
Fig. 3 is the sequential chart of raster data model detecting unit in the present invention.
Embodiment
Below in conjunction with schematic diagram, organic light-emitting display device array base palte of the present invention and detection method are described in more detail, which show the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here, and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
In the following passage, more specifically the present invention is described by way of example with reference to accompanying drawing.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, a kind of organic light-emitting display device array base palte is provided, the display screen of this organic light-emitting display device array base palte includes multiple raster data model detecting unit, this raster data model detecting unit can detect gate driver circuit, learn the situation of gate driver circuit in time, so that subsequent technique makes suitable decision.
Below enumerate the preferred embodiment of described organic light-emitting display device array base palte and detection method, so that content of the present invention to be clearly described, will be clear that, content of the present invention is not restricted to following examples, and other improvement by the routine techniques means of those of ordinary skill in the art are also within thought range of the present invention.
Please refer to the structural representation shown in Fig. 1, described organic light-emitting display device array base palte 10, comprise: there is gate driver circuit (GIP circuit, not shown) multiple display screens 11 and multiple raster data model detecting unit 12, can be specifically that each display screen 11 comprises one or more raster data model detecting unit 12.Illustrate only 4 display screens 11 in Fig. 1, but it will be understood by those skilled in the art that the present invention does not limit the quantity of described display screen 11, accommodation can be made according to real needs.
As shown in Figure 1, described organic light-emitting display device array base palte 10 also comprises multiple contact jaw (pad), such as, described contact jaw (pad) is the first test side DE, the second test side DO, signal end SIN, CK, XCK, VGH, VGL respectively, these contact jaws are picked out by lead-in wire, for being applied in test signal and detection output signal, concrete, signal end SIN, CK, XCK, VGH, VGL are used for being applied in test signal, first test side DE, the second test side DO is for detecting output signal.The present invention, by applying signal at signal end, is performed by raster data model detecting unit 12 and is judged whether GIP circuit exists exception according to output signal.The quantity of described raster data model detecting unit 12 can be corresponding with the line number of pixel in display screen 11, thus each raster data model detecting unit 12 detects the GIP circuit often corresponding to row pixel, and these raster data model detecting units 12 can be mutual restrictions, such as only have previous raster data model detecting unit 12 to detect normally, next raster data model detecting unit 12 just can trigger.
Concrete, please refer to Fig. 2, described raster data model detecting unit 12 comprises input block 1, first control module 2, second control module 3, switch and output unit 4, described first control module 2 is connected to the first signal end XCK, receive the first control signal that described first signal end XCK sends, and export first and control signal to described switch; Described second control module 3 is connected to secondary signal end CK, receives the second control signal that described secondary signal end sends, and exports second and control signal to described switch; Described input block 1 carries out the input of signal; Described output unit 4 carries out the output of signal; Described switch carries out regulation and control to described input signal and forms described output signal under the effect of described first control module 2 and described second control module 3; Wherein, the input block 1 of first order raster data model detecting unit 12 is connected to start signal end SIN, initial input signal is applied by start signal end SIN, the input signal of the input block 1 of raster data model detecting unit 12 is afterwards then the output signal of its previous stage raster data model detecting unit 12, this can be realized by the input block 1 making the output unit 4 of previous stage raster data model detecting unit 12 connect next stage raster data model detecting unit 12, now, the output unit 4 of previous stage raster data model detecting unit 12 is just equivalent to start signal end SIN.
Concrete, described switch comprises the first switch M1, second switch M2, the 3rd switch M3 and the 4th switch M4.In a better selection, these switches can be nmos pass transistor, certainly, also PMOS transistor can be chosen as, as well known, the transistor types of selection and conducting current potential is needed to match, as in embodiments of the present invention, the conducting when clock signal is noble potential of each switch is (due to the existence of not gate, being actually clock signal is electronegative potential), same, when being chosen as nmos pass transistor or PMOS transistor respectively, connection those skilled in the art of its source-drain electrode also can determine, will not be described in detail.
Described first control module 2 is connected to the grid of the first switch M1 and second switch M2, and described input block 1 is connected to first electrode of the first switch M1, the first electrode ground connection of described second switch M2.Described second control module 3 is connected to first electrode of the 3rd switch M3, the grid of the 3rd switch M3 is connected to second electrode of the first switch M1, second Electrode connection of the 3rd switch M3 is to first electrode of the 4th switch M4, the grid of the 4th switch M4 is connected to second electrode of second switch M2, the second Electrode connection supply voltage of the 4th switch M4.The first electrode ground connection of described second unit M2 can be realized by drive singal end VGL, and described supply voltage can be applied by drive singal end VGH.
Described output unit 4 comprises one the 5th switch M5, described 5th switch M5 can be thin film transistor (TFT), its grid is connected to second electrode of the first switch M1, first Electrode connection of the 5th switch M5 to second electrode of the 3rd switch M3, the second sub-test side 5 of Electrode connection to of the 5th switch M5.
Further, described raster data model detecting unit 12 also comprises a voltage regulation unit, described voltage regulation unit comprises one a 6th switch M6 and electric capacity C1, described 6th switch M6 is transistor, described electric capacity C1 one end is connected to the grid of the 3rd switch M3, the other end of described electric capacity C1 is connected to the grid of the 6th switch M6 and first electrode of the 5th switch M5, and first Electrode connection of the 6th switch M6 is to supply voltage, and second Electrode connection of the 6th switch M6 is to second electrode of second switch M2.Described 6th switch M6 can be the transistor with the identical type of the first switch M1.
In the present invention, described raster data model detecting unit 12 has N number of, N is natural number, the value of described N is relevant with resolution, such as, the present invention is provided with the capable controlling grid scan line of N, often row controlling grid scan line arranges a raster data model detecting unit 12, wherein, the sub-test side 5 of the described raster data model detecting unit 12 of even number line is in parallel, and be connected to the first test side DE, the sub-test side of odd-numbered line raster data model detecting unit 12 is in parallel, and be connected to the second test side DO, situation is exported by detecting DE and DO signal, can judge whether GIP driving circuit exports abnormal, thus record final output signal respectively.
Below in conjunction with the sequential chart shown in Fig. 3, working condition of the present invention (i.e. detection method) is described.In the T1 time period, the input block SIN of first order raster data model detecting unit and the first control module XCK is electronegative potential (0), second control module CK is noble potential (1), and M1 conducting also exports electronegative potential, and M3, M5 conducting also exports noble potential by M5.For the n-th raster data model detecting unit 12, wherein, n is odd number and is less than or equal to N, namely obtain as shown in Figure 3 to export OUT_n in the T1 time period be noble potential.
In the T2 time period, input block SIN and the first control module XCK of first order raster data model detecting unit become noble potential, M1 closes, CK current potential is by high step-down, N point current potential is coupled to lower current potential, and M3, M5 conducting also exports electronegative potential by M5, namely obtain as shown in Figure 3 to export OUT_n in the T2 time period be electronegative potential, meanwhile, the electronegative potential that exports of the output unit of first order raster data model detecting unit is as the input signal of the input block of next stage raster data model detecting unit.
In the T3 time period, input block SIN and the second control module CK of first order raster data model detecting unit are noble potential, first control module XCK is electronegative potential, M1 conducting, M3 closes, M2 conducting, the grid of M4 is electronegative potential, M4 conducting exports noble potential, and meanwhile, the noble potential that the output unit of first order raster data model detecting unit exports is as the input signal of described next stage raster data model detecting unit input block.
The electronegative potential that n-th raster data model detecting unit 12 was produced by output terminal 4 when the T2 time period is as the input signal SIN of next raster data model detecting unit 12, namely for (n+1)th raster data model detecting unit 12, when being triggered, the input signal received is electronegative potential, and XCK is electronegative potential, CK is noble potential, can according to above to the description of T1 time period, and learning that (n+1)th raster data model detecting unit 12 exports OUT_n+1 is noble potential.Continue with this, in the T3 time period, the output OUT_n+1 of (n+1)th raster data model detecting unit 12 is electronegative potential.By that analogy, can obtain the n-th+2 shown in Fig. 3, the n-th+3 ... the output signal of raster data model detecting unit 12.Thus obtain at the first test side DE the final output signal that order is the raster data model detecting unit 12 of even number, obtain at the second test side DO the final output signal that order is the raster data model detecting unit 12 of odd number.
So, organic light-emitting display device array base palte of the present invention, due to the existence of raster data model detecting unit, directly can detect that whether GIP circuit is normal, such as, meet DE, DO final output signal in Fig. 3 and then show that GIP circuit is normal.Thus just can avoid the monitoring to GIP circuit in prior art, when not increasing cost and not changing outward appearance, ensure that the reliability of GIP circuit.And can detect after array process, what after detecting, GIP circuit was bad can carry out repairing or scrapping, in order to avoid cause the waste of processing procedure.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an organic light-emitting display device array base palte, comprise: multiple display screens with gate driver circuit, each display screen comprises multiple raster data model detecting unit for detecting gate driver circuit function, described raster data model detecting unit comprises: input block, first control module, second control module, switch and output unit, wherein, described input block is used for the input of input signal, the output of described output unit for outputing signal, described switch forms described output signal for carrying out regulation and control to described input signal under the effect of described first control module and described second control module.
2. organic light-emitting display device array base palte as claimed in claim 1, it is characterized in that, described in the first order, the input block of raster data model detecting unit is connected to start signal end, and described in previous stage, the output unit of raster data model detecting unit is connected to the input block of raster data model detecting unit described in next stage.
3. organic light-emitting display device array base palte as claimed in claim 1, it is characterized in that, described first control module is connected to one first signal end, receives the first control signal that described first signal end sends and exports described switch to; Described second control module is connected to a secondary signal end, receives the second control signal that described secondary signal end sends and exports described switch to.
4. organic light-emitting display device array base palte as claimed in claim 3, it is characterized in that, described switch comprises the first switch and second switch, described first control module is connected to the grid of described first switch and described second switch, described input block is connected to the first electrode of described first switch, the first electrode ground connection of described second switch.
5. organic light-emitting display device array base palte as claimed in claim 4, it is characterized in that, described switch also comprises the 3rd switch and the 4th switch, described second control module is connected to the first electrode of described 3rd switch, the grid of described 3rd switch is connected to the second electrode of described first switch, second Electrode connection of described 3rd switch is to the first electrode of described 4th switch, the grid of described 4th switch is connected to the second electrode of described second switch, the second Electrode connection supply voltage of described 4th switch.
6. organic light-emitting display device array base palte as claimed in claim 5, it is characterized in that, described output unit comprises one the 5th switch, the grid of described 5th switch is connected to the second electrode of described first switch, first Electrode connection of described 5th switch to the second electrode of described 3rd switch, the second sub-test side of Electrode connection to of described 5th switch.
7. organic light-emitting display device array base palte as claimed in claim 6, it is characterized in that, described raster data model detecting unit also comprises a voltage regulation unit, described voltage regulation unit comprises the 6th switch and an electric capacity, described electric capacity one end is connected to the grid of described 3rd switch, the other end of described electric capacity is connected to the grid of described 6th switch and the first electrode of described 5th switch, first Electrode connection of described 6th switch is to supply voltage, and the second Electrode connection of described 6th switch is to the second electrode of described second switch.
8. organic light-emitting display device array base palte as claimed in claim 7, it is characterized in that, described organic light-emitting display device array base palte also comprises the first test side and the second test side, and described first test side and the second test side are connected to multiple described sub-test side respectively.
9. organic light-emitting display device array base palte as claimed in claim 8, it is characterized in that, the quantity of described raster data model detecting unit is N number of, N is natural number, wherein, the sub-test side of the described raster data model detecting unit of even number line is in parallel, and is connected to described first test side, the sub-test side of the raster data model detecting unit of odd-numbered line is in parallel, and is connected to described second test side.
10., as a detection method for the organic light-emitting display device array base palte in claim 1-9 as described in any one, comprising:
In the T1 time period, input block and first control module of first order raster data model detecting unit provide low-potential signal, and the second control module provides high potential signal, and output unit exports noble potential;
The T2 time period after next-door neighbour's T1 time period, input block and first control module of first order raster data model detecting unit provide high potential signal, and the second control module provides low-potential signal, and output unit exports electronegative potential; Meanwhile, the electronegative potential that exports of the output unit of first order raster data model detecting unit is as the input signal of the input block of next stage raster data model detecting unit;
In the T3 time period, the input block of first order raster data model detecting unit provides high potential signal, and the first control module provides low-potential signal, and the second control module provides noble potential, and output unit exports noble potential; Meanwhile, the noble potential that exports of the output unit of first order raster data model detecting unit is as the input signal of described next stage raster data model detecting unit input block.
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| CN104575385B (en) | 2017-09-19 |
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