CN1746731A - Display device - Google Patents
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- CN1746731A CN1746731A CN 200510113230 CN200510113230A CN1746731A CN 1746731 A CN1746731 A CN 1746731A CN 200510113230 CN200510113230 CN 200510113230 CN 200510113230 A CN200510113230 A CN 200510113230A CN 1746731 A CN1746731 A CN 1746731A
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
A display device includes a first inspection wiring line that is connected to first wiring lines of a first wiring line group and to third wiring lines of a second wiring line group, and a second inspection wiring line that is connected to second wiring lines of the first wiring line group, which neighbor the first wiring lines, and to fourth wiring lines of the second wiring line group, which neighbor the third wiring lines.
Description
Background of invention
The present invention relates to a kind of display device, it comprises the inspection wiring that is used to check line defct, be used for based on the inspection method of the inspection signal check line defct of the inspection wiring that inputs to this display device and the checkout facility that produces the inspection signal of the inspection wiring that inputs to this display device.
Display device such as liquid crystal display comprises effective display part of forming by with the display element of arranged in matrix.Effectively display device comprise along the row of display element along the multi-strip scanning line of stretching, along the row of display element along the multi-strip scanning line of stretching, be arranged on on-off element and the pixel capacitors that is connected with on-off element near sweep trace and the signal wire intersection point.
Under normal conditions, the wiring group links to each other with scan line drive circuit, and this sweep trace is arranged on the distolateral of effective display part.By checking that a signal is input to odd-numbered scan lines and even-line interlace line, the line defct on can inspection panel, the short circuit in for example wiring group or open circuit or the effectively short circuit in the display part or open circuit.
On the other hand, such layout has been proposed: comprise that the odd number wiring group that is connected to odd-numbered scan lines is arranged on the distolateral of effective display part, comprise that the even number wiring group that is connected to the even-line interlace line is arranged on effective display part another distolateral (for example seeing disclosed Jpn.Pat.Appln.KOKAINo.06-160898 and disclosed Jpn.Pat.Appln.KOKAI No.2001-013892).Particularly, for the structure that adopts the integrated single driving IC chip of part of scanning line driving wherein and signal wire drive part, this layout is optimum.
Under the situation of this layout,, can check the line defct of effective display part by checking that signal is input to odd-numbered scan lines and even-line interlace line.Yet, can not check the line defct among every of wiring group.One therefore, has the panel that is present in the line defct in the wiring group that wherein can not testedly find and might enter in subsequently the manufacturing step.In manufacturing step subsequently, can install such as driving IC chip and the such expensive component of flexible printed wiring board (FPC).Therefore, if defective panel enters manufacturing step subsequently, can cause the reduction of output.
Summary of the invention
The present invention has considered the problems referred to above, the purpose of this invention is to provide the line defct that can accurately detect on the panel and can suppress the display device that turnout reduces.
According to a first aspect of the invention, the display device that provides comprises: the effective display part that is made of a plurality of display elements; The first wiring group, it is set in place on the periphery of the outside of effective display part distolateral, and comprises the wiring that is connected with odd-numbered scan lines, and the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line; The second wiring group, its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line; The first inspection wiring that be connected with first wiring of the first wiring group and that be connected with the 3rd wiring of the second wiring group; With the second inspection wiring that is connected with second wiring adjacent of the first wiring group and be connected with the 4th wiring adjacent of the second wiring group with the 3rd wiring with first wiring.
According to a second aspect of the invention, the display device that provides comprises: the effective display part that is made of a plurality of display elements; The first wiring group, its be set in place in the periphery of the outside of effective display part one distolateral on, and comprise the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line; The second wiring group, its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line; The first inspection wiring that is connected and is connected with first wiring of the first wiring group with second wiring adjacent of the first wiring group with first wiring; The second inspection wiring that be connected with the 3rd wiring of the second wiring group and that be connected with the 4th wiring adjacent of the second wiring group with the 3rd wiring; First switch signal line is checked first on-off element between the wiring and first wiring and is arranged at second in first and check that the open/close switching signal of the 3rd on-off element between wiring and the 3rd wiring offers this first switch signal line being used for control setting; The second switch signal wire is checked the second switch element between the wiring and second wiring and is arranged at second in first and check that the open/close switching signal of the 3rd on-off element between wiring and the 4th wiring offers this second switch signal wire being used for control setting.
The present invention can provide the line defct that can accurately detect on the panel, and can suppress the display device of the reduction of output.
To set forth attached purpose of the present invention and advantage in the following description, and from explanation, be in part apparent, perhaps obtain described purpose and advantage by practice of the present invention.By means and the combination of specifically noting hereinafter, will realize and obtain objects and advantages of the present invention.
Brief description of drawings
Combined and form instructions a part description of drawings embodiments of the invention, and be used from the detailed description one of above-mentioned general remark and embodiment given below and explain principle of the present invention.
Fig. 1 schematically shows the structure of the display panels of liquid crystal display according to an embodiment of the invention;
Fig. 2 schematically shows the structure according to the inspection wiring portion of first embodiment, and it is applicable to display panels shown in Figure 1;
Fig. 3 schematically shows the structure according to the checkout facility of first embodiment, and it is applicable to display panels shown in Figure 1;
Fig. 4 is the diagrammatic sketch that is used to illustrate according to the inspection method of first embodiment, and it is applicable to display panels shown in Figure 1;
Fig. 5 schematically shows the structure according to the inspection wiring portion of second embodiment, and it is applicable to display panels shown in Figure 1;
Fig. 6 schematically shows the structure according to the checkout facility of second embodiment, and it is applicable to display panels shown in Figure 1; And
Fig. 7 is the diagrammatic sketch that is used to illustrate according to the inspection method of second embodiment, and it is applicable to display panels shown in Figure 1.
Detailed Description Of The Invention
Referring now to accompanying drawing display device is according to an embodiment of the invention described.
(first embodiment)
As shown in Figure 1, the plane display panels 1 that comprises substantial rectangular for liquid crystal display according to the example of the display device of first embodiment.Display panels 1 comprises a pair of substrate (just array base palte 3 and back substrate 4) and places this to the liquid crystal layer between the substrate 5 as optical modulation layer.Display panels 1 comprises the effective display part 6 of the rectangle of display image.Effectively display part 6 is made of a plurality of display element PX that are arranged to matrix.
On-off element 7 is made by for example thin film transistor (TFT) (TFT).On-off element 7 has the gate electrode 7G that is electrically connected with related scans line Y (or forming integrated sweep trace).On-off element 7 has the source electrode 7S that is electrically connected with coherent signal line X (or forming integrated signal wire).On-off element 7 has the drain electrode 7D that is electrically connected with the pixel capacitors 8 of relevant display element PX.
Back substrate 4 comprise with effective display part 6 in the shared backplate 9 of all display element PX.Be arranged to make pixel capacitors 8 relative array base palte 3 and back substrate 4, and be provided with the slit betwixt with backplate 9.Liquid crystal layer 5 is made by the liquid crystal material in the slit that is sealed between array base palte 3 and the back substrate 4.
In colored display type liquid crystal display, display panels 1 comprises multiple display element, for example shows the red pixel of red (R), the green pixel and the blue picture element that shows blue (B) of demonstration green (G).Especially, red pixel comprises the red color light filter that can pass through the light of red main wavelength.Green pixel comprises the green color filter that can pass through the light of green main wavelength.Blue picture element comprises the blue color filter that can pass through the light of blue main wavelength.These color filter are arranged on the first type surface of array base palte 3 or back substrate 4.
Scanning line driving part 11Y comprise drive signal output to odd-numbered scan lines Y (1,3,5 ...) the first driver element 11Y1 and drive signal output to even-line interlace line Y (2,4,6 ...) the second driver element 11Y2.The first driver element 11Y1 and the second driver element 11Y2 are arranged on the both sides of signal wire drive part 11X, thereby signal wire drive part 11X is clipped in the middle.
More specifically, the first driver element 11Y1 by the first wiring group 20 on the distolateral 10B who is arranged on periphery 10 and odd-numbered scan lines Y (1,3,5 ...) be electrically connected.The first wiring group 20 comprise with odd-numbered scan lines Y (1,3,5 ...) the wiring W that connects (1,3,5 ...).From the drive signal of first driver element 11Y1 output via wiring W (1,3,5 ...) offer corresponding odd-numbered scan lines Y (1,3,5 ...), Open from This Side/close the display element PX on the odd-numbered line.That is: control the on-off element 7 that is included in each display element PX based on the drive signal ON/OFF that provides from related scans line Y.
The second wiring group 30 of another the distolateral 10c of the second driver element 11Y2 by being arranged on periphery 10 and even-line interlace line Y (2,4,6 ...) be electrically connected.The second wiring group 30 comprise with even-line interlace line Y (2,4,6 ...) the wiring W that connects (2,4,6 ...).From the drive signal of second driver element 11Y2 output via wiring W (2,4,6 ...) offer relevant even-line interlace line Y (2,4,6 ...), so display element PX on the On/Off even number line.
As shown in Figure 2, array base palte 3 comprises line defct between the first wiring group 20 that is used for checking on the periphery 10 and the line defct between the second wiring group 30 and the effective inspection wiring portion 40 of the line defct of display part 6.Check wiring portion 40 comprise link to each other with signal wire drive part 11X that the signal wire that is equipped with is checked part 41, first sweep trace that is equipped with that links to each other with the first driver element 11Y1 of scanning line driving part 11Y is checked part 42, second sweep trace inspection part 43 of the outfit that links to each other with the second driver element 11Y2 of scanning line driving part 11Y and be used for various signals are input to the pad part 44 of each inspection part 41,42 and 43.
Signal wire checks that part 41 comprises the signal wire inspection wiring 51 that is connected with coherent signal line X.In this example, signal wire inspection wiring 51 comprises and is used for the redness inspection wiring 51R that checks signal being provided, being used for the green inspection wiring 51G that checks signal is provided and is used for providing the blueness inspection of the inspection signal 51B that connects up to the signal wire that links to each other with blue picture element to the signal wire that links to each other with green pixel to the signal wire that links to each other with red pixel.
Signal wire check part 41 also comprise be positioned at signal wire X (1,2 ..., n) and signal wire inspection wiring 51 (R, G, B) on-off elements 61 between.Each of on-off element 61 is made of thin film transistor (TFT).The gate electrode 61G of on-off element 61 is electrically connected with common switch signal line 54.(R, G B) are electrically connected the source electrode 61S of on-off element 61 with relevant signal wire inspection wiring 51.The drain electrode 61D of on-off element 61 is electrically connected with relevant signal wire X.
First sweep trace inspection part 42 comprises first wiring, 21 (W1 that for example connects up, W5, the W9 with the first wiring group 20, ...) connect first check wiring 52 and second wiring 22 adjacent (W3 for example connect up with first wiring 21, W7, W11 ...) and connect second check wiring 53.First sweep trace checks that part 42 comprises that also first wiring 21 and first checks the second switch element 62B that the first on-off element 62A between the wiring 52 and second wiring 22 and second are checked between the wiring 53.The first on-off element 62A and second switch element 62B are made of thin film transistor (TFT).
Particularly, the gate electrode 62AG of the first on-off element 62A is electrically connected with common switch signal line 54.The source electrode 62AS of the first on-off element 62A and the relevant first inspection wiring, 52 electrical connections.The drain electrode 62AD of the first on-off element 62A and relevant first wiring, 21 electrical connections.
The gate electrode 62BG of second switch element 62B is electrically connected with common switch signal wire 54.The second inspection wiring 53 that the source electrode 62BS of second switch element 62B is relevant is electrically connected.The drain electrode 62BD of second switch element 62B and relevant second wiring, 22 electrical connections.
Second sweep trace is checked and part 43 to be comprised the 3rd wiring 33 with the second wiring group 30 (W2 for example connects up, W6, what W10...) connect first checks wiring 52 and four wiring 34 (for example connect up W4, the W8s adjacent with the 3rd wiring 33, W12 ...) connect second check wiring 53.Second sweep trace checks that part 43 comprises that also the 3rd wiring 33 and first checks the 4th on-off element 63B that the 3rd on-off element 63A between the wiring 52 and the 4th wiring 34 and second are checked between the wiring 53.The 3rd on-off element 63A and the 4th on-off element 63B are made of thin film transistor (TFT).
Particularly, the gate electrode 63AG of the 3rd on-off element 63A is electrically connected with common switch signal wire 54.The source electrode 63AS of the 3rd on-off element 63A and the relevant first inspection wiring, 52 electrical connections, itself and the first on-off element 62A have.The drain electrode 63AD of the 3rd on-off element 63A and relevant the 3rd wiring 33 electrical connections.
The gate electrode 63BG of the 4th on-off element 63B is electrically connected with common switch signal wire 54.The source electrode 63BS of the 4th on-off element 63B and the relevant second inspection wiring, 53 electrical connections, itself and second switch element 62B have.The drain electrode 63BD of the 4th on-off element 63B and relevant the 4th wiring 34 electrical connections.
(B) Shu Ru drive signal is the inspection vision signal that writes at the examination phase place in the pixel capacitors 8 of display element PX for R, G from input pad 71.From the drive signal of input pad 72 and 73 inputs are the inspection signals that are used for the on-off element 7 of ON/OFF control examination phase display element PX.From the drive signal of input pad 74 inputs is to be used for the on-off element 61,62 of each inspection part of ON/OFF control examination phase and 63 switching signal.
Signal wire X (1,2, ..., n), the 3rd wiring 33 of first wiring 21 of the first wiring group 20 and second wiring, the 22 and second wiring group 30 and pars intermedia office that the 4th wiring 34 is included in them be connected pad PD, it allows to the connection of driving IC chip 11.
Liquid crystal display with said structure has such layout: drive signal can be offered odd-numbered scan lines and even-line interlace line from the both end sides of effective display part.In this arrangement, can import second the connecting up of vicinity of different inspection signal to the first wiring of different timings place and the first wiring group, to provide drive signal to odd-numbered scan lines, and the different inspection signal to the three of importing different timings place connects up and the 4th wiring of the vicinity of the second wiring group, to provide drive signal to the even-line interlace line.Therefore can accurately detect the line defct on the panel, for example the short circuit between the wiring of the first wiring group or every wiring open circuit and the wiring of the second wiring group between short circuit or the opening circuit of every wiring.
According to liquid crystal display with said structure, be arranged on the number of checking the wiring on the wiring portion owing to can reduce, thus can reduce manufacturing cost, and reduce the size of periphery.Therefore, the size of the periphery of image pattern shaped as frame shape also can narrow down.
On the regional location corresponding to driving IC chip 11 places, signal wire checks that part 41, first sweep trace inspection part 42 and second sweep trace inspection part 43 are arranged on the extension 10A of array base palte 3.Need not explanation, first checks that the wiring 52 and second inspection wiring 53 is arranged on the 10A of extension.First check wiring 52 and second check wiring 53 driving IC chip 11 vertically on extend.Like this, when driving IC chip 11 was installed, first checked that the wiring 52 and second inspection wiring 53 is overlapping with driving IC chip 11.In a word, check that wiring can be arranged on the array base palte and need not increase Outside Dimensions.
(checkout facility)
Below, provide the explanation of the checkout facility 100 that is used for detecting the line defct on the display panels of liquid crystal display with said structure.
Be the checkout facility that is applicable to the display device of first embodiment below:
The checkout facility that is used for display device, described display device comprises:
Effective display part of forming by a plurality of display elements;
The first wiring group, its be set in place in the periphery of the outside of effective display part one distolateral on, and comprise the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line; And
The second wiring group, its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line;
Described checkout facility comprises:
Signal generation device, it is used to produce the first inspection signal that inputs to the first inspection wiring, first checks that wiring is connected with first wiring of the first wiring group and the 3rd wiring of the second wiring group, and it is used to produce and inputs to second and check that second of wiring checks signal, second check the 4th of second wiring (adjacent) of wiring and the first wiring group and the second wiring group with first wiring connect up (with the 3rd connect up adjacent) be connected.
Particularly, as shown in Figure 3, checkout facility 100 comprises a plurality of probes 101 that can be connected with the input pad of pad part 44; Produce the signal generator branch (signal generation device) 102 of multiple signal, described signal comprises that inputing to first by probe 101 checks the inspection signal of the wiring 52 and second inspection wiring 53 and the switching signal that inputs to switch signal line 54 by probe 101; And stimulus part (signal input apparatus) 103, it will divide the 102 inspection signals that produce to input to the relevant first inspection wiring, the 52 and second inspection wiring 53 by signal generator.
(inspection method)
Be the inspection method that is used for display device that is applicable to first embodiment below:
The inspection method that is used for display device, described display device comprises:
Effective display part of forming by a plurality of display elements;
The first wiring group, its be set in place in the periphery of the outside of effective display part one distolateral on, and comprise the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line; And
The second wiring group, its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line;
Described inspection method comprises:
Check that with first signal inputs to the first inspection wiring that is connected with first wiring of the first wiring group, check that with second signal inputs to the second inspection wiring that is connected with second wiring (adjacent with first wiring) of the first wiring group, check that with first signal inputs to the first inspection wiring that is connected with the 3rd wiring of the second wiring group, and check that with second signal inputs to the second inspection wiring that is connected with the 4th wiring (adjacent with the 3rd wiring) of the second wiring group; And
According to the input of the first and second inspection signals, check line defct, the line defct in the second wiring group and odd-numbered scan lines in effective display part and the defective in the even-line interlace line in the first wiring group.
Particularly, in this inspection method, the probe 101 of checkout facility 100 is connected with the input pad of the pad part 44 of display panels 1.At predetermined regularly place, stimulus part 103 is divided 102 switching signals that produce to input to switch signal line 54 by signal generator.Input by switching signal, in suitable timing place, the on-off element 61 of start signal ray examination part 41, first sweep trace are checked the first on-off element 62A of part 42 and the 3rd on-off element 63A and the 4th on-off element 63B of second switch element 62B and second sweep trace inspection part 43.
Based on the unlatching of the first on-off element 62A, stimulus part 103 checks that signal inputs to the first inspection wiring 52 that is connected with first wiring 21 of the first wiring group 20 to first.Therefore first check signal provide to first 21 odd-numbered scan lines that are connected that connect up.By first input of checking signal,, open the on-off element 7 that is connected with odd-numbered scan lines in effective display part 6 in suitable timing place.
In addition, based on the unlatching of second switch element 62B, stimulus part 103 checks that signal inputs to the second inspection wiring 53 that is connected with second wiring 22 of the first wiring group 20 to second.Therefore second check signal provide to second 22 odd-numbered scan lines that are connected that connect up.By second input of checking signal, machine is when appropriate opened the on-off element 7 that is connected with odd-numbered scan lines in effective display part 6.
On the other hand, based on the unlatching of the 3rd on-off element 63A, stimulus part 103 checks that signal inputs to the first inspection wiring 52 that is connected with the 3rd wiring 33 of the second wiring group 30 to first.Thereby, check that signal offers and the 3rd wiring 33 even-line interlace lines that are connected to first.By first input of checking signal,, open the on-off element 7 that is connected with even-line interlace line in effective display part 6 in suitable timing place.
In addition, based on the unlatching of the 4th on-off element 63B, stimulus part 103 checks that signal inputs to the second inspection wiring 53 that is connected with the 4th wiring 34 of the second wiring group 30 to second.Therefore second check signal provide to the 4th 34 even-line interlace lines that are connected that connect up.By second input of checking signal,, open the on-off element 7 that is connected with even-line interlace line in effective display part 6 in suitable timing place.
Subsequently, according to first and second inputs of checking signals, can check short circuit and the effectively odd-numbered scan lines in the display part 6 and the short circuit between the even-line interlace line between the 3rd wiring the 33 and the 4th wiring 34 of short circuit between first wiring, 21 and second wiring 22 of the first wiring group 20, the second wiring group 30.In this checks step, signal generator divide 102 by signal wire inspection wiring 51 (B) checking that vision signal inputs to each signal line X, wherein effectively the on-off element 7 in the display part 6 is opened for R, G.Therefore will check that vision signal writes the display element PX in effective display part 6 of display panels 1.By writing the inspection vision signal, can detect the line defct of the various wirings on the display panels 1.
Particularly, as shown in Figure 4, at place regularly when with signal when first wiring 21 of the first wiring group 20 inputs to relevant odd-numbered scan lines, check that from first wiring 52 inputs first check signal, and an inspection vision signal inputed to each signal line X.In this case, if between first wiring, 21 and second wiring 22 of the first wiring group 20, short circuit occurs, if for example between wiring W1 and wiring W3, be short-circuited, first checks that signal not only offers the sweep trace Y1 that is connected with the W1 that connects up, and offers the sweep trace Y3 that is connected with the W3 that connects up.Therefore, open the on-off element 7 of the display element PX be connected with sweep trace Y3 simultaneously, and the on-off element 7 of the display element PX that is connected with sweep trace Y1 of unlatching.Under normal circumstances, open and sweep trace Y1, Y5, Y9 ... the on-off element 7 of the display element PX of connection.Yet, owing to the short circuit between wiring W1 and the W3, can open and sweep trace Y1, Y3, Y5 and Y9 ... the on-off element 7 of the display element PX of connection.
By this way, provide the inspection vision signal, so also open the relevant display element PX on the display panels 1 if open therein under the state of each on-off element 7.By observing the opening of the relevant display element PX on the display panels 1, just can check the short circuit that first wiring 21 and second of the first wiring group 20 is connected up between 22.
Similarly,, check that from second wiring 53 inputs second check signal, and an inspection signal is inputed to each signal line X when when second wiring 22 of the first wiring group 20 inputs to signal relevant odd-numbered scan lines at place regularly.Therefore can detect the short circuit between first wiring, 21 and second wiring 22 of checking the first wiring group 20.
In addition, as shown in Figure 4, at place regularly when with signal when the 3rd wiring 33 of the second wiring group 30 inputs to relevant even-line interlace line, check that from first wiring 52 inputs first check signal, and an inspection vision signal inputed to each signal line X.In this case, if between adjacent the 3rd wiring the 33 and the 4th wiring 34 of the second wiring group 30, be short-circuited, if for example between wiring W2 and wiring W4, be short-circuited, first checks that signal not only offers the sweep trace Y2 that is connected with the W2 that connects up, and offers the sweep trace Y4 that is connected with the W4 that connects up.Therefore, open the on-off element 7 of the display element PX that is connected with sweep trace Y4 simultaneously, and the on-off element 7 of the display element PX that is connected with sweep trace Y2.Under normal circumstances, open and sweep trace Y2, Y6, Y10 ... the on-off element 7 of the display element PX of connection.Yet, owing to the short circuit between wiring W2 and the W4, can open and sweep trace Y2, Y4, Y6 and Y10 ... the on-off element 7 of the display element PX of connection.Therefore can detect the short circuit between the wiring of the 3rd in the second wiring group 30 the 33 and the 4th wiring 34.
Similarly,, check that from second wiring 53 inputs second check signal, and an inspection signal is inputed to each signal line X when when the 4th wiring 34 of the second wiring group 30 inputs to signal on corresponding even-line interlace line at place regularly.Therefore can detect the short circuit between the wiring of the 3rd in the second wiring group 30 the 33 and the 4th wiring 34.
In addition, in the short circuit in checking the first wiring group 20 and the second wiring group 30, can check odd-numbered scan lines in effective display part 6 and the short circuit between the even-line interlace line.Be short-circuited between hypothesis odd-numbered scan lines and the even-line interlace line now, for example be short-circuited between sweep trace Y1 and the sweep trace Y2.In this case, if in the step of the short circuit between first wiring, 21 and second wiring 22 of checking the first wiring group 20, check that with first signal inputs to relevant odd-numbered scan lines from first wiring 21, provide first to check that signal is to sweep trace Y1 and sweep trace Y3.Therefore, open the on-off element 7 of the display element PX that is connected with sweep trace Y2 simultaneously, and the on-off element 7 of the display element PX that is connected with sweep trace Y1.Under normal circumstances, open and sweep trace Y1, Y5, Y9 ... the on-off element 7 of the display element PX of connection.Yet, owing to the short circuit between sweep trace Y1 and the sweep trace Y2, can open and sweep trace Y1, Y2, Y5, and Y9 ... the on-off element 7 of the display element PX of connection.
By this way, open therein in the state of each on-off element 7,, so also open the relevant display element PX on the display panels 1 if provide the inspection vision signal to signal wire X.By observing the opening of the relevant display element PX on the display panels 1, just can detect the short circuit between the adjacent scanning lines.
In addition, according to above-mentioned inspection method, except checking the short circuit between the wiring, by opening circuit between the terminal of observing the opening of the display element PX on the display panels 1, also can check the connection pad PD that is connected with driving IC chip 11 and every wiring.Particularly, according to the input of various inspection signals, find the opening of display element PX.Therefore can check between the 3rd wiring the 33 and the 4th wiring 34 of opening circuit between first wiring, 21 and second wiring 22 of the first wiring group 20, the second wiring group 30 open circuit and the sweep trace Y in effective display part 6 (, can not open corresponding display element PX) and this segment distance between the signal wire X if open circuit on occur open circuit.
As mentioned above, according to this inspection method, in having the liquid crystal display that drive signal can be offered from the layout of the odd-numbered scan lines of the both end sides of effective display part and even-line interlace line; Checkout facility checks that signal inputs to first wiring of the first wiring group to first; And check that signal inputs to second wiring adjacent with first wiring to second in different timings place.Input based on checking signal can accurately detect the line defct in the first wiring group.In addition, checkout facility checks that signal inputs to the 3rd wiring of the second wiring group to first, and checks that signal inputs to and the 4th adjacent wiring of the 3rd wiring to second in different timings place.Input based on checking signal can accurately detect the line defct in the second wiring group.Simultaneously, can detect following line defct: as opening circuit between the short circuit between odd-numbered scan lines in effective display part and the even-line interlace line and sweep trace and the sweep trace.Therefore can avoid in the manufacture process that will carry out subsequently, occurring having the liquid crystal display of line defct, and suppress the reduction of output.
(second embodiment)
In the explanation of the second embodiment of the present invention, represent the structural detail identical with first embodiment by identical Reference numeral.Be applicable to identical among structure and first embodiment of display panels 1 of second embodiment, describe so omit.
In a second embodiment, as shown in Figure 5, array base palte 3 comprises line defct between the line on the first wiring group 20 that is used for checking on the periphery 10, the line defct between the line on the second wiring group 30 and the effective inspection wiring portion 40 of the line defct of display part 6.Check wiring portion 40 comprise link to each other with signal wire drive part 11X that the signal wire that is equipped with is checked part 41, first sweep trace that is equipped with that links to each other with the first driver element 11Y1 of scanning line driving part 11Y is checked part 42, second sweep trace inspection part 43 of the outfit that links to each other with the second driver element 11Y2 of scanning line driving part 11Y and be used for various signals are input to the pad part 44 of each inspection part 41,42 and 43.
Signal wire checks that part 41 comprises the signal wire inspection wiring 51 that connects with relevant signal wire X.In this example, signal wire inspection wiring 51 comprises and is used for the redness inspection wiring 51R that checks signal being provided, being used for the green inspection wiring 51G that checks signal is provided and is used for providing the blueness inspection of the inspection signal 51B that connects up to the signal wire that links to each other with blue picture element to the signal wire that links to each other with green pixel to the signal wire that links to each other with red pixel.
Signal wire check part 41 also comprise be positioned at signal wire X (1,2 ..., n) and signal wire inspection wiring 51 (R, G, B) on-off elements 61 between.Each of on-off element 61 is made of thin film transistor (TFT).The gate electrode 61G of on-off element 61 is electrically connected with common switch signal wire 55.(R, G B) are electrically connected the source electrode 61S of on-off element 61 with relevant signal wire inspection wiring 51.The drain electrode 61D of on-off element 61 is electrically connected with relevant signal wire X.
First sweep trace inspection part 42 comprises first wiring, 21 (W1 that for example connects up, W5, the W9 with the first wiring group 20, ...) connect first check wiring 52 and second wiring 22 adjacent (W3 for example connect up with first wiring 21, W7, W11 ...) and connect second check wiring 53.First sweep trace checks that part 42 comprises that also first wiring 21 and first checks the second switch element 62B that the first on-off element 62A between the wiring 52 and second wiring 22 and first are checked between the wiring 52.The first on-off element 62A and second switch element 62B are made of thin film transistor (TFT).
Particularly, the gate electrode 62AG of the first on-off element 62A is electrically connected with the first switch signal line 44A.The source electrode 62AS of the first on-off element 62A and the mutually relevant first inspection wiring, 52 electrical connections.The drain electrode 62AD of the first on-off element 62A and relevant first wiring, 21 electrical connections.
The gate electrode 62BG of second switch element 62B is electrically connected with second switch signal wire 54B.The source electrode 62BS of second switch element 62B and the relevant first inspection wiring, 52 electrical connections.The drain electrode 62BD of second switch element 62B and relevant second wiring, 22 electrical connections.
Second sweep trace check part 43 comprise with the 3rd wiring 33 of the second wiring group 30 (W2 that for example connects up, W6, W10...) connect and and four wiring 34 adjacent with the 3rd wiring 33 (W4 that for example connects up, W8, W12 ...) connect second check wiring 53.Second sweep trace checks that part 43 comprises that also the 3rd wiring 33 and second checks the 4th on-off element 63B that the 3rd on-off element 63A between the wiring 53 and the 4th wiring 34 and second are checked between the wiring 53.The 3rd on-off element 63A and the 4th on-off element 63B are made of thin film transistor (TFT).
Particularly, the gate electrode 63AG of the 3rd on-off element 63A is electrically connected with the first switch signal line 54A, and it is identical with the first on-off element 62A.The source electrode 63AS of the 3rd on-off element 63A and the relevant second inspection wiring, 53 electrical connections.The drain electrode 63AD of the 3rd on-off element 63A and relevant the 3rd wiring 33 electrical connections.
The gate electrode 63BG of the 4th on-off element 63B is electrically connected with second switch signal wire 54B, and it is identical with second switch element 62B.The source electrode 63BS of the 4th on-off element 63B and the relevant second inspection wiring, 53 electrical connections.The drain electrode 63BD of the 4th on-off element 63B and relevant the 4th wiring 34 electrical connections.
(B) Shu Ru drive signal is to write inspection vision signal in the pixel capacitors 8 of display element PX at examination phase for R, G from input pad 71 in inspection.From the drive signals of input pad 72 and 73 inputs be used for ON/OFF control examination phase display element PX on-off element 7 the inspection signal.From the drive signal of input pad 74A and 74B input is to be used for the first on-off element 62A and second switch element 62B and the 3rd on-off element 63A of second sweep trace inspection part 43 and the switching signal of the 4th on-off element 63B that ON/OFF control examination phase first sweep trace is checked part 42.From the drive signal of input pad 75 inputs are the switching signals 61 that are used for the on-off element of ON/OFF control signal ray examination part 41.
Signal wire X (1,2 ..., n), the first wiring group 20 first the wiring 21 and second the wiring the 22 and second wiring group 30 the 3rd the wiring 33 and the 4th the wiring 34 center sections that are included in them be connected pad PD, it allows to the connection of driving IC chip 11.
Liquid crystal display with said structure has and drive signal can be offered from the odd-numbered scan lines of the both end sides of effective display part and the layout of even-line interlace line.In this arrangement, can import first wiring and adjacent second of inspection signal to the first wiring group of different timings place connects up, to be used to providing drive signal to odd-numbered scan lines, and can import different timings place inspection signal to the second wiring group the 3rd the wiring and the 4th adjacent wiring, to be used to providing drive signal to the even-line interlace line.Can accurately detect the line defct on the panel like this, for example the short circuit between the wiring of the first wiring group or every wiring open circuit and the wiring of the second wiring group between short circuit or the opening circuit of every wiring.
On the regional location corresponding to driving IC chip 11 places, signal wire checks that part 41, first sweep trace inspection part 42 and second sweep trace inspection part 43 are arranged on the extension 10A of array base palte 3.Need not explanation, first checks that the wiring 52 and second inspection wiring 53 is arranged on the 10A of extension.First check wiring 52 and second check wiring 53 driving IC chip 11 vertically on extend.Like this, when driving IC chip 11 was installed, first checked that the wiring 52 and second inspection wiring 53 is overlapping with driving IC chip 11.In a word, check that wiring can be arranged on the array base palte and need not increase Outside Dimensions.
(checkout facility)
Below, provide the explanation of the checkout facility 100 that is used for detecting the line defct on the display panels of liquid crystal display with said structure.
Following is the checkout facility that is used for display device that is applicable to second embodiment:
A kind of checkout facility that is used for display device, described display device comprises:
Effective display part of forming by a plurality of display elements;
The first wiring group, its be set in place in the periphery of the outside of effective display part one distolateral on, and comprise the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line;
The second wiring group, its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line;
The first inspection wiring that is connected with first wiring of the first wiring group and second wiring of the first wiring group (adjacent) with first wiring; With
The second inspection wiring that is connected with the 3rd wiring of the second wiring group and the 4th wiring of the second wiring group (adjacent) with the 3rd wiring,
Described checkout facility comprises:
Signal generation device, it is used to produce input to and is arranged on first and checks first on-off element between the wiring and first wiring and input to and be arranged on second public first switching signal of checking the 3rd on-off element between wiring and the 3rd wiring; Input to and be arranged on first and check the second switch element between the wiring and second wiring and input to and be arranged on the second public second switch signal of checking the 4th on-off element between wiring and the 4th wiring; Input to first and check the first inspection signal that connects up; With the second inspection signal that inputs to the second inspection wiring.
Checkout facility may further include signal input apparatus, it is used for when opening first on-off element and the 3rd on-off element according to the input of first switching signal, the first inspection signal that is produced by signal generation device is inputed to the first inspection wiring, and the second inspection signal that is produced by signal generation device is inputed to the second inspection wiring; When opening second switch element and the 4th on-off element according to the input of second switch signal, the first inspection signal that is produced by signal generation device is inputed to the first inspection wiring, and the second inspection signal that is produced by signal generation device is inputed to the second inspection wiring.
Particularly, as shown in Figure 6, checkout facility 100 comprises a plurality of probes 101 that can be connected with the input pad of pad part 44; Produce the signal generator branch (signal generation device) 102 of multiple signal, described signal comprises that inputing to first by probe 101 checks the inspection signal of the wiring 52 and second inspection wiring 53 and the switching signal that inputs to the first switch signal line 54A and second switch signal wire 54B by probe 101; And stimulus part (signal input apparatus) 103, it will divide the 102 inspection signals that produce to input to the relevant first inspection wiring, the 52 and second inspection wiring 53 by signal generator, and will divide 102 switching signals that produce to input to first relevant switch signal line 54A and second switch signal wire 54B by signal generator.
(inspection method)
Following is the inspection method that is used for display device that is applicable to second embodiment:
A kind of inspection method that is used for display device, it comprises:
Effective display part of forming by a plurality of display elements;
The first wiring group, its be set in place in the periphery of the outside of effective display part one distolateral on, and comprise the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line; And
The second wiring group, its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line;
The first inspection wiring that is connected with first wiring of the first wiring group and second wiring of the first wiring group (adjacent) with first wiring; And
The second inspection wiring that is connected with the 3rd wiring of the second wiring group and the 4th wiring of the second wiring group (adjacent) with the 3rd wiring,
Described inspection method comprises:
Input according to common first switching signal, check first on-off element between the wiring and first wiring and be arranged at second when checking that the 3rd on-off element between wiring and the 3rd wiring is unlocked when being arranged at first at place regularly, check that signal inputs to first and checks wiring and the second inspection signal is inputed to second inspection and connect up to first.
Input according to common second switch signal, check the second switch element between the wiring and second wiring and be arranged at second when checking that the 4th on-off element between wiring and the 4th wiring is unlocked when being arranged at first at place regularly, check that signal inputs to first and checks wiring and the second inspection signal is inputed to second inspection and connect up to first; And
According to the input of the first and second inspection signals, check the line defct in the first wiring group, the second wiring group and the effective display part.
To provide the more detailed description of the inspection method of the line defct on the display panels that is used to check on the liquid crystal display with said structure now.Carry out described inspection method in the treatment step after forming display panels 1 and before driving IC chip 11 is installed to display panels 1.In the checkout facility 100 that is applied to this inspection method, signal generator divides 102 to produce independently two kinds of inspection signals, first checks the signal and the second inspection signal that is:, also produces two kinds of switching signals, that is: first switching signal and second switch signal.
Particularly, in this inspection method, the probe 101 of checkout facility 100 is connected on the input pad of pad part 44 of display panels 1.At predetermined regularly place, stimulus part 103 is divided 102 first switching signals that produce to input to the first switch signal line 54A by signal generator.By the input of first switching signal,, open first sweep trace and check first on-off element 62A of part 42 and the 3rd on-off element 63A that second sweep trace is checked part 43 in suitable timing place.In addition, stimulus part 103 is divided the 102 second switch signals that produce to input to second switch signal wire 54B by signal generator.By the input of second switch signal,, open first sweep trace and check the second switch element 62B of part 42 and the 3rd on-off element 63B that second sweep trace is checked part 43 in suitable timing place.In addition, stimulus part 103 is divided 102 switching signals that produce to input to switch signal line 55 by signal generator.By the input of this switching signal, in suitable timing place, the on-off element 61 of start signal ray examination part 41.
Based on the unlatching of the first on-off element 62A, stimulus part 103 checks that signal inputs to the first inspection wiring 52 that is connected with first wiring 21 of the first wiring group 20 to first.Therefore check that signal offers and first wiring, 21 odd-numbered scan lines that are connected to first.By first input of checking signal,, open the on-off element 7 that is connected with odd-numbered scan lines in effective display part 6 in suitable timing place.
In addition, based on the unlatching of the 3rd on-off element 63A, stimulus part 103 checks that signal inputs to the second inspection wiring 53 that is connected with the 3rd wiring 33 of the second wiring group 30 to second.Cause. this second inspection signal offers and the 3rd wiring 33 even-line interlace lines that are connected.By second input of checking signal,, open the on-off element 7 that is connected with even-line interlace line in effective display part 6 in suitable timing place.
Subsequently, according to first and second inputs of checking signals, can check short circuit and the effectively odd-numbered scan lines in the display part 6 and the short circuit between the even-line interlace line between the 3rd wiring the 33 and the 4th wiring 34 of short circuit between first wiring, 21 and second wiring 22 of the first wiring group 20, the second wiring group 30.In this checks step, when effectively the on-off element 7 of display part 6 is in opening, signal generator divide 102 by signal wire inspection wiring 51 (R, G is B) checking that vision signal inputs to each signal line X.Thereby, will check that vision signal writes the display element PX in effective display part 6 of display panels 1.By writing the inspection vision signal, can check the line defct of the various wirings on the display panels 1.
Particularly, as shown in Figure 7, when can be, check that from first wiring 52 inputs first check signal with signal from first wiring 21 of the first wiring group 20 when inputing to corresponding odd-numbered scan lines, and checking that a vision signal inputs to each signal line X.In this case, if between first wiring, 21 and second wiring 22 of the first wiring group 20, be short-circuited, if for example between wiring W1 and wiring W3, be short-circuited, first checks that signal not only offers the sweep trace Y1 that is connected with the W1 that connects up, and offers the sweep trace Y3 that is connected with the W3 that connects up.Therefore open the on-off element 7 of the display element PX that is connected with sweep trace Y3 and the on-off element 7 of the display element PX that is connected with sweep trace Y1 simultaneously.Under normal circumstances, open and sweep trace Y1, Y5, Y9 ... the on-off element 7 of the display element PX of connection.Yet, owing to the short circuit between wiring W1 and the W3, can open and sweep trace Y1, Y3, Y5 and Y9 ... the on-off element 7 of the display element PX of connection.
By this way, if provide the inspection vision signal under the state that each on-off element 7 is unlocked, the relevant display element PX on the display panels 1 also is unlocked so.By observing the opening of the relevant display element PX on the display panels 1, just can detect the short circuit that first wiring 21 and second of the first wiring group 20 is connected up between 22.
Similarly, when when second wiring 22 of the first wiring group 20 inputs to signal relevant odd-numbered scan lines, check that signal is checked in wiring 52 inputs first and checking that a signal inputs to each signal line X from first.Therefore can detect the short circuit between first wiring, 21 and second wiring 22 of the first wiring group 20.
In addition, as shown in Figure 7, when can be when the 3rd wiring 33 of the second wiring group 30 inputs to corresponding even-line interlace line, check that from second wiring 53 inputs second check signal, and an inspection vision signal is inputed to each signal line X signal at place regularly.In this case, if be short-circuited between adjacent the 3rd wiring the 33 and the 4th wiring 34 in the second wiring group 30, if for example between wiring W2 and wiring W4, be short-circuited, first checks that signal not only offers the sweep trace Y2 that is connected with the W2 that connects up, and offers the sweep trace Y4 that is connected with the W4 that connects up.Therefore open the on-off element 7 of the display element PX that is connected with sweep trace Y4 and the on-off element 7 of the display element PX that is connected with sweep trace Y2 simultaneously.Under normal circumstances, open and sweep trace Y2, Y6, Y10 ... the on-off element 7 of the display element PX of connection.Yet, owing to the short circuit between wiring W2 and the W4, can open and sweep trace Y2, Y4, Y6 and Y10 ... the on-off element 7 of the display element PX of connection.Like this, can detect the short circuit that the wiring of the 3rd in the second wiring group 30 the 33 and the 4th is connected up between 34.
Similarly, in the time inputing to relevant even-line interlace line to signal, check that from second wiring 53 inputs second check signal and an inspection signal is inputed to each signal line X at place regularly from the 4th wiring 34 of the second wiring group 30.Therefore can detect the short circuit between the wiring of the 3rd in the second wiring group 30 the 33 and the 4th wiring 34.
In addition, in the short circuit in checking the first wiring group 20 and the second wiring group 30, also can check odd-numbered scan lines in effective display part 6 and the short circuit between the even-line interlace line.Be short-circuited between hypothesis odd-numbered scan lines and the even-line interlace line now, for example between sweep trace Y1 and sweep trace Y2, be short-circuited.In this case, if in step, signal is inputed to corresponding odd-numbered scan lines from first wiring 21, provide first to check that signal is to sweep trace Y1 and sweep trace Y3 to the test for short-circuit between first wiring, 21 and second wiring 22 of the first wiring group 20.Therefore open the on-off element 7 of the display element PX that is connected with sweep trace Y2 and the on-off element 7 of the display element PX that is connected with sweep trace Y1 simultaneously.Under normal circumstances, open and sweep trace Y1, Y5, Y9 ... the on-off element 7 of the display element PX of connection.Yet, owing to the short circuit between sweep trace Y1 and the sweep trace Y2, can open and sweep trace Y1, Y2, Y5, and Y9 ... the on-off element 7 of the display element PX of connection.
By this way, when each on-off element 7 was in opening, if provide the inspection vision signal to signal wire X, the corresponding display element PX on the display panels 1 also was unlocked so.By observing the opening of the corresponding display element PX on the display panels 1, just can check the short circuit between the adjacent scanning lines.
Further, according to above-mentioned inspection method, except checking the short circuit between the wiring, by opening circuit between the terminal of observing the opening of the display element PX on the display panels 1, also can check the connection pad PD that is connected with driving IC chip 11 and every wiring.Particularly, according to the input of various inspection signals, find the opening of display element PX.Therefore can check between the 3rd wiring the 33 and the 4th wiring 34 of opening circuit between first wiring, 21 and second wiring 22 of the first wiring group 20, the second wiring group 30 open circuit and sweep trace Y in effective display part 6 (, can not open corresponding display element PX) and signal wire X if open circuit between occur on this segment distance open circuit.
As mentioned above, according to this inspection method, in having the liquid crystal display that drive signal can be offered from the layout of the odd-numbered scan lines of the both end sides of effective display part and even-line interlace line, checkout facility checks that signal inputs to first wiring of the first wiring group to first; And check that signal inputs to second wiring adjacent with first wiring to second in different timings place.Input based on checking signal can accurately detect the line defct in the first wiring group.In addition, checkout facility checks that signal inputs to many 3rd adjacent wiring and the 4th wirings of the second wiring group to second in different timings place.Input based on checking signal can accurately detect the line defct in the second wiring group.Simultaneously, can accurately detect following line defct: as opening circuit between the short circuit between odd-numbered scan lines in effective display part and the even-line interlace line and sweep trace and the sweep trace.Like this, just can avoid in the manufacture process that will carry out subsequently, occurring having the liquid crystal display of line defct, and suppress the reduction of output.
The present invention is not limited to the foregoing description.In fact, under the situation that does not break away from spirit of the present invention, can revise structural detail.Can by the disclosed in an embodiment structural detail of appropriate combination come or various inventions.For example, can omit a part of structural detail in disclosed in an embodiment all structural details.In addition, can be suitable be combined in structural detail among the different embodiment.
Display device of the present invention is not limited to above-mentioned liquid crystal display.The present invention can be used to be applicable to the various multiple display device with the layout on the both end sides that the first wiring group and the second wiring group be arranged on effective display part respectively.For example, the present invention is applicable to the organic electroluminescent display device that comprises as the self-emission device of display element.
In the above-described embodiments, first check that the signal that the signal and the second inspection signal can be different also can be a same signal.In addition, in checking step, at least one in the first inspection signal and the second inspection signal can be the inspection signal of constant being in " pass " level state.
Claims (12)
1, a kind of display device is characterized in that comprising:
The effective display part (6) that constitutes by a plurality of display elements;
The first wiring group (20), its be set in place in the periphery of the outside of effective display part one distolateral on, and comprising the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line;
The second wiring group (30), its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line;
The first inspection wiring (52) that be connected with first wiring (21) of the first wiring group and that be connected with the 3rd wiring (33) of the second wiring group; And
The second inspection wiring (53) that be connected with second wiring (22) adjacent of the first wiring group and that be connected with the 4th wiring (34) adjacent of the second wiring group with the 3rd wiring with first wiring.
2, according to the display device of claim 1, it is characterized in that, check that first wiring and second checks that each end of wiring provides the input pad (72,73) of energy input drive signal.
According to the display device of claim 1, it is characterized in that 3, effectively the display part is arranged on the display panels (1), wherein liquid crystal inserts display layer (5) between array base palte (3) and back substrate (4).
According to the display device of claim 3, it is characterized in that 4, first checks that wiring and second is checked to connect up is arranged on the extension (10A) that stretching out of array base palte exceed the end of back substrate.
5, according to the display device of claim 4, it is characterized in that, further comprise driving IC chip (11), it is arranged on corresponding to the first inspection wiring and second wherein is set and checks the position in the zone of wiring.
6, according to the display device of claim 5, it is characterized in that, driving IC chip comprise to odd-numbered scan lines provide drive signal first driver element (11Y1), second driver element (11Y2) of drive signal is provided and is clipped in first driver element and the second driver element middle signal line drive part (11X) to the even-line interlace line.
7, a kind of display device is characterized in that comprising:
The effective display part (6) that constitutes by a plurality of display elements;
The first wiring group (20), its be set in place in the periphery of the outside of effective display part one distolateral on, and comprising the wiring that is connected with odd-numbered scan lines, the drive signal that is provided to this odd-numbered scan lines is used for the display element of On/Off on odd-numbered line;
The second wiring group (30), its be arranged on another of periphery distolateral on, and comprise the wiring that is connected with the even-line interlace line, the drive signal that is provided to this even-line interlace line is used for the display element of On/Off on even number line;
The first inspection wiring (52) that be connected with first wiring (21) of the first wiring group and that be connected with second wiring (22) adjacent of the first wiring group with first wiring;
The second inspection wiring (53) that be connected with the 3rd wiring (33) of the second wiring group and that be connected with the 4th wiring (34) adjacent of the second wiring group with the 3rd wiring;
First switch signal line (54A) is checked first on-off element (62A) between the wiring and first wiring and is arranged at second in first and check that the switching signal of the 3rd on-off element (63A) between wiring and the 3rd wiring offers this first switch signal line (54A) being used for the ON/OFF control setting;
Second switch signal wire (54B) is checked the second switch element (62B) between the wiring and second wiring and is arranged at second in first and check that the switching signal of the 3rd on-off element (63B) between wiring and the 4th wiring offers this second switch signal wire (54B) being used for the ON/OFF control setting.
8, according to the display device of claim 7, it is characterized in that, first check wiring, second check each end of wiring, first switch signal line and second switch signal wire provide can input drive signal the input pad (72,73,74A, 74B).
According to the display device of claim 7, it is characterized in that 9, effectively the display part is arranged on the display panels (1), wherein inserts liquid crystal display layer (5) between array base palte (3) and back substrate (4).
According to the display device of claim 9, it is characterized in that 10, first checks that wiring and second is checked to connect up is arranged on the extension (10A) that stretching out of array base palte exceed the end sections of back substrate.
11, according to the display device of claim 10, it is characterized in that, also comprise driving IC chip (11), it is arranged on corresponding to the first inspection wiring and second wherein is set and checks the position in the zone of wiring.
12, according to the display device of claim 11, it is characterized in that, driving IC chip comprise to odd-numbered scan lines provide drive signal first driver element (11Y1), second driver element (11Y2) of drive signal is provided and is clipped in first driver element and the second driver element middle signal line drive part (11X) to the even-line interlace line.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004231108 | 2004-08-06 | ||
| JP2004231109 | 2004-08-06 | ||
| JP2004231109A JP4476737B2 (en) | 2004-08-06 | 2004-08-06 | Display device, display device inspection method, and display device inspection device |
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| Publication Number | Publication Date |
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| CN1746731A true CN1746731A (en) | 2006-03-15 |
| CN100388062C CN100388062C (en) | 2008-05-14 |
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| CNB200510113230XA Active CN100388062C (en) | 2004-08-06 | 2005-08-05 | Display device |
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| JP (1) | JP4476737B2 (en) |
| CN (1) | CN100388062C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101210938B (en) * | 2006-12-26 | 2010-10-06 | 深圳麦逊电子有限公司 | PCB Connection method for implementing common use of four-density grid and eight-density grid in PCB test |
| CN103278948A (en) * | 2013-05-30 | 2013-09-04 | 合肥京东方光电科技有限公司 | Method and detecting device for wire failure detection of display panel |
| CN104575359A (en) * | 2014-12-12 | 2015-04-29 | 友达光电股份有限公司 | Display panel and test method thereof |
| CN113744631A (en) * | 2020-05-28 | 2021-12-03 | 元太科技工业股份有限公司 | Display panel |
| US11615725B2 (en) | 2020-05-28 | 2023-03-28 | E Ink Holdings Inc. | Display panel |
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| JP4886278B2 (en) * | 2005-11-22 | 2012-02-29 | 東芝モバイルディスプレイ株式会社 | Display device |
| JP4891676B2 (en) * | 2006-07-07 | 2012-03-07 | 東芝モバイルディスプレイ株式会社 | Display device |
| JP5687117B2 (en) | 2011-04-12 | 2015-03-18 | パナソニック株式会社 | Active matrix substrate, active matrix substrate inspection method, display panel, and display panel manufacturing method |
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| JP2002022789A (en) * | 2000-07-05 | 2002-01-23 | Oht Inc | Inspection device and method |
| JP5053479B2 (en) * | 2000-09-14 | 2012-10-17 | 株式会社ジャパンディスプレイセントラル | Matrix array substrate and manufacturing method thereof |
| JP2002156417A (en) * | 2000-11-17 | 2002-05-31 | Oht Inc | Apparatus and method for inspecting circuit board |
| JP3964337B2 (en) * | 2003-03-07 | 2007-08-22 | 三菱電機株式会社 | Image display device |
| JP3909526B2 (en) * | 2003-08-07 | 2007-04-25 | エーユー オプトロニクス コーポレイション | Inspection method for active matrix display device |
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| CN101210938B (en) * | 2006-12-26 | 2010-10-06 | 深圳麦逊电子有限公司 | PCB Connection method for implementing common use of four-density grid and eight-density grid in PCB test |
| CN103278948A (en) * | 2013-05-30 | 2013-09-04 | 合肥京东方光电科技有限公司 | Method and detecting device for wire failure detection of display panel |
| CN103278948B (en) * | 2013-05-30 | 2015-10-21 | 合肥京东方光电科技有限公司 | The method detected for the line badness of display panel and pick-up unit |
| US9424792B2 (en) | 2013-05-30 | 2016-08-23 | Boe Technology Group Co., Ltd. | Test method and test device for line defect of display panel |
| CN104575359A (en) * | 2014-12-12 | 2015-04-29 | 友达光电股份有限公司 | Display panel and test method thereof |
| CN113744631A (en) * | 2020-05-28 | 2021-12-03 | 元太科技工业股份有限公司 | Display panel |
| US11615725B2 (en) | 2020-05-28 | 2023-03-28 | E Ink Holdings Inc. | Display panel |
| CN113744631B (en) * | 2020-05-28 | 2023-08-29 | 元太科技工业股份有限公司 | display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006047197A (en) | 2006-02-16 |
| CN100388062C (en) | 2008-05-14 |
| JP4476737B2 (en) | 2010-06-09 |
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Owner name: JAPAN DISPLAY MIDDLE INC. Free format text: FORMER NAME: TOSHIBA MOBILE DISPLAY CO., LTD. Owner name: TOSHIBA MOBILE DISPLAY CO., LTD. Free format text: FORMER NAME: TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY LTD. |
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Address after: Saitama Prefecture, Japan Patentee after: Toshiba Mobile Display Co.,Ltd. Address before: Tokyo, Japan Patentee before: TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY Co.,Ltd. |