CN1766698A - Display device - Google Patents

Abstract

There is disclosed a display device comprising an effective display section constituted of a plurality of system pixels, an inspection wiring line to which a signal for inspection is supplied in inspecting the effective display section, and a conductive layer having a discharge inducing section which is disposed in such a manner as to face the inspection wiring line at a predetermined interval and which induces discharge of electric charges accumulated in the inspection wiring line.

Description

Display device

Technical field

The present invention relates to display device, particularly have the display device of carrying out the inspection unit that relevant quality check uses.

Background technology

Display device such as liquid crystal indicator have the effective display part that is made of rectangular display pixel.Many signal line that this effective display part has the multi-strip scanning line that extends along the line direction of display pixel, extend along the column direction of display pixel, be configured near on-off element the cross section of these sweep traces and signal wire and the pixel electrode that is connected with on-off element etc.These each scan lines and each holding wire are drawn out to the outer peripheral portion of effective display part.

In recent years, along with the increase of display pixel, various wirings such as sweep trace in effective display part and outer peripheral portion thereof and signal wire are with thin live width and with fine interval disposed adjacent.Therefore, must the wiring unfavorable conditions such as broken string of the short circuit between wiring and each wiring be endured strict scrutiny.For example having proposed a kind of method, is that the inspection control circuit is connected with liquid crystal indicator, and adjacent scan line is supplied with the different signal of phase place, by checking so the bad situation of wiring (for example, with reference to the flat 06-16089 of JP number newspaper newspaper).In addition, also propose a kind of outer peripheral portion in effective display part and have the scheme (for example, with reference to JP 2003-157053 communique) of the liquid crystal indicator of the wiring of detecting.

In addition, the baneful influence that produces in order to tackle charged in the manufacturing process, disclosed with show with transparency electrode (for example to have predetermined distance configuration discharge with the manufacture method of the liquid crystal indicator of auxiliary pattern with one deck, open flat 02-7019 communique with reference to the spy) and the electrode wiring substrate (for example, opening flat 11-282016 communique with reference to the spy) etc. that has the electric position of effect at their the relative position place across the 1st electrode wiring of insulation course configuration and the 2nd electrode wiring.

Summary of the invention

The present invention proposes just in view of the above-mentioned problems, and its purpose is to provide can stably carry out the inspection of relevant quality and can suppress to make the display device that qualification rate reduces.

The display device of form has according to the present invention

The effective display part that constitutes by a plurality of display pixels;

When checking aforementioned effective display part, supply with and check with the inspection of signal with wiring; And

Have and separate with wiring with aforementioned inspection that the interval of regulation is relative to dispose and guide the conductive layer of aforementioned inspection with the discharge leader of the charge discharge that gathers on connecting up.

According to the present invention, can provide and stably to carry out the inspection of relevant matter and can suppress to make the display unit that qualification rate reduces.

Additional purpose of the present invention and advantage will propose in the following description, and part will be apparent from this explanation, or obtain understanding by practice of the present invention.These purposes of the present invention and advantage can realize and obtain by following enforcement of specially pointing out and combination.

Description of drawings

Be incorporated into and consist of the description of drawings example of the present invention of the part of this specification, and be used for explaining principle of the present invention with the detailed description of the general remark that provides above and example given below.

Figure 1 shows that the concise and to the point pie graph of the display panels of the liquid crystal indicator that the present invention's one example is relevant.

Figure 2 shows that the concise and to the point pie graph of the inspection unit of display panels shown in Figure 1.

Fig. 3 checks the key diagram that causes short circuit generation usefulness with near the on-off element figure discharge the control cloth thread end for explanation is positioned at.

The key diagram of usefulness takes place because of discharge causes broken string for explanation in Fig. 4 near the sweep of public wiring.

Figure 5 shows that and cut out the concise and to the point pie graph of single display panels shown in Figure 1 display device before with main substrate.

Inspection shown in Fig. 6 A schematic plan view of the configuration example of wiring and conductive layer on the other side.

Fig. 6 B is depicted as and uses A-A ' line to cut off the inspection shown in Fig. 6 A and with connecting up and cutaway view during conductive layer.

Be depicted as the schematic plan view of checking with the configuration example of wiring and conductive layer on the other side shown in Fig. 7 A.

Fig. 7 B is depicted as the concise and to the point cut-open view of the cross-section structure when using A-A ' line to cut off the inspection shown in Fig. 7 A with wiring and conductive layer.

Fig. 8 A is depicted as and checks the schematic plan view that reaches the configuration example of overlapping with it conductive layer with wiring.

Fig. 8 B is depicted as the concise and to the point cut-open view of the cross-section structure when using A-A ' line to cut off the inspection shown in Fig. 8 A with wiring and conductive layer.

Fig. 9 A is depicted as and checks with the discharge sensing part of wiring and the schematic plan view of conductive layer shape example relatively partly.

Fig. 9 B is depicted as and checks with the discharge sensing part of wiring and the schematic plan view of conductive layer shape example relatively partly.

Fig. 9 C is depicted as and checks with the discharge sensing part of wiring and the schematic plan view of conductive layer shape example relatively partly.

Fig. 9 D is depicted as and checks with the discharge sensing part of wiring and the schematic plan view of conductive layer shape example relatively partly.

Figure 10 A is depicted as and makes the planimetric map of checking the graphics combine example when using wiring and conductive layer relative to each other.

Figure 10 B is depicted as and makes the planimetric map of checking the graphics combine example when using wiring and conductive layer relative to each other.

Figure 10 C is depicted as and makes the planimetric map of checking the graphics combine example when using wiring and conductive layer relative to each other.

Figure 10 D is depicted as and makes the planimetric map of checking the graphics combine example when using wiring and conductive layer relative to each other.

Figure 11 A is depicted as the planimetric map of the graphics combine example when inspection is overlapped each other with wiring and conductive layer.

Figure 11 B is depicted as the planimetric map of the graphics combine example when inspection is overlapped each other with wiring and conductive layer.

Figure 11 C is depicted as the planimetric map of the graphics combine example when inspection is overlapped each other with wiring and conductive layer.

Figure 11 D is depicted as the planimetric map of the graphics combine example when inspection is overlapped each other with wiring and conductive layer.

Figure 11 E is depicted as the planimetric map of the graphics combine example when inspection is overlapped each other with wiring and conductive layer.

Figure 12 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of embodiment 1 and conductive layer on the other side.

Figure 12 B is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 12 A and conductive layer.

Figure 13 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of embodiment 2 and conductive layer on the other side.

Figure 13 B is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 13 A and conductive layer.

Figure 14 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of embodiment 3 and conductive layer on the other side.

Figure 14 B is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 14 A and conductive layer.

Figure 15 shows that the inspection schematic plan view that connects up and connect the relative configuration example of pad in the concrete example 1.

Figure 16 shows that in the concrete example 1 inspection with wiring with the schematic plan view of the relative configuration example of connecting wiring that is connected pad connection.

Figure 17 A is depicted as the schematic plan view of the relevant check control wiring of embodiment 4 and the configuration that is connected pad.

Figure 17 B is the plane that the check control wiring shown in Figure 17 A and the relative part (the regional B shown in the dotted line among the figure) of connecting welding are amplified.

Figure 17 C is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 17 B and connection pad.

Figure 18 shows that inspection in the concrete example 2 is with the schematic plan view of the wiring configuration example relative with empty graphic.

Figure 19 shows that inspection wiring and the empty schematic plan view of organizing relative configuration example in the concrete example 2.

Figure 20 shows that inspection in the concrete example 2 with wiring, empty graphic and can supply with the schematic plan view of configuration example of the wiring of signal.

The simple planimetric map of organizing and can supply with the configuration example of wiring lines for the inspection in the concrete example 2 with wiring, sky shown in Figure 21.

Figure 22 A is depicted as the relevant check control wiring of example 5, empty group and connects the schematic plan view of the configuration of pad.

Figure 22 B is the plane that the relative part (the regional B shown in the dotted line among the figure) of the check control wiring shown in Figure 22 A, empty group and connection pad is amplified.

Figure 22 C is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 22 B, empty group and connection pad.

Shown in Figure 23 is that inspection in the concrete example 3 is with the schematic plan view of wiring with the relative configuration example of component of public wiring.

Shown in Figure 24 is that inspection in the concrete example 3 is with the schematic plan view of wiring with the relative configuration example of terminal part of public wiring.

Figure 25 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of embodiment 6 and public wiring.

Figure 25 B is the plane that the check control wiring shown in Figure 25 A and the relative part (the regional B shown in the dotted line among the figure) of public wiring are amplified.

Figure 25 C is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 25 B and public wiring.

Shown in Figure 26 is that inspection in the concrete example 4 is with the schematic plan view of wiring with the relative configuration example of component of global semaphore.

Shown in Figure 27 is that inspection in the concrete example 4 is with the schematic plan view of wiring with the relative configuration example of terminal part of global semaphore.

Figure 28 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of embodiment 7 and global semaphore line.

Figure 28 B is the plane that the check control wiring shown in Figure 28 A and the relative part (the regional B shown in the dotted line among the figure) of global semaphore line are amplified.

Figure 28 C is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 28 B and global semaphore line.

Figure 29 A is depicted as near the concise and to the point cut-open view of the structure in coupling part of the display panels in the concrete example 5.

Figure 29 B is depicted as near the schematic plan view of the structure in coupling part of the display panels in the concrete example 5.

Shown in Figure 30 is that inspection in the concrete example 5 is with the schematic plan view of wiring with the relative configuration example of feed pad of coupling part.

Shown in Figure 31ly divide the schematic plan view of relative configuration example with connecting up with the electrode part of coupling part for the inspection in the concrete example 5.

Figure 32 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of example 8 and coupling part.

Figure 32 B is the plane that the check control wiring shown in Figure 32 A and the relative part (the regional B shown in the dotted line among the figure) of coupling part are amplified.

Figure 32 C is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 32 B and coupling part.

Shown in Figure 33 is to check in the display panels of concrete example 6 with the schematic plan view of wiring with the relative configuration example of alignment mark.

Shown in Figure 34 is display unit inspection schematic plan view that connects up with the relative configuration example of alignment mark in the main substrate of concrete example 6.

Figure 35 A is depicted as the schematic plan view of the configuration of the relevant check control wiring of embodiment 9 and alignment mark.

Figure 35 B is the plane that the check control wiring shown in Figure 35 A and the relative part (the regional B shown in the dotted line among the figure) of alignment mark are amplified.

Figure 35 C is depicted as the concise and to the point cutaway view of the cross-section structure when using B-B ' line to cut off the check control wiring shown in Figure 35 B and alignment mark.

Shown in Figure 36 is the schematic plan view that the 1st in the concrete example 7 checked wiring portion and the relative configuration example of the 2nd inspection wiring portion.

Shown in Figure 37 is the schematic plan view that the 1st in the concrete example 7 checked wiring portion and the relative configuration example of the 2nd inspection wiring portion.

Shown in Figure 38 is the schematic plan view that the 1st in the concrete example 7 checked wiring portion and the relative configuration example of the 2nd inspection wiring portion.

Figure 39 A is depicted as the simplified diagram that embodiment 10 relevant the 1st inspection wiring portion and the 2nd are checked the configuration of wiring portion.

Figure 39 B checks that with the 1st shown in Figure 39 A wiring portion and the 2nd checks the plane that the relative part (the part B shown in the dotted line among the figure) of wiring portion is amplified.

Figure 39 C is depicted as B-B ' line and cuts off the concise and to the point cut-open view that the 1st shown in Figure 39 B checks the cross-section structure when wiring portion and the 2nd is checked wiring portion.

Embodiment

Referring to accompanying drawing, the relevant display unit of the present invention's one example is described.

" formation of display device " as the liquid crystal indicator of an example of display device, has approximate rectangular flat display panels 1 as display panel as shown in Figure 1.This display panels 1 by a pair of substrate, be that array base palte 3 and relative substrate 4 and the liquid crystal layer 5 that keeps as optical modulation layer between this a pair of substrate are constituted.The effective display part 6 of the rectangle that this display panels 1 has display image.This effective display part 6 is made of a plurality of display pixel PX that are rectangular configuration.

The multi-strip scanning line Y that array base palte 3 has the wiring that is configured in effective display part, for example extend along the line direction of display pixel PX (1,2,3 ..., m) and many signal line X of extending along the column direction of display pixel PX (1,2,3 ..., n) etc.In addition, array base palte 3 except these various wirings, also has near the switch element 7 that the intersecting of these scan lines Y and holding wire X each display pixel PX is disposed and the pixel electrode 8 that is connected with switch element 7 etc. in effective display part 6.

On-off element 7 is by thin film transistor (TFT) formations such as (TFT).The grid 7G of this switch element 7 and corresponding scan line Y are electrically connected and (or form one with scan line.The source electrode 7S of switch element 7 and corresponding holding wire X are electrically connected (or form one with holding wire).The drain electrode 7D of on-off element 7 is electrically connected with the pixel electrode 8 of corresponding display pixel PX.

Substrate 4 has the public comparative electrode 9 of whole display pixel PX etc. in effective display part 6 relatively.These array base paltes 3 and relative substrate 4 form the interval to dispose under the relative state of the pixel electrode 8 of whole display pixel PX and comparative electrode 9 between them.Utilize the liquid-crystal composition of sealing-in in the interval of array base palte 3 and relative substrate 4, form liquid crystal layer 5.

Transmission-type liquid crystal display panel 1 utilization make from the back of the body irradiation of backlight unit selectively transmission come display image, it has the optical thin films such as polaroid of the outside surface that is installed in array base palte 3 and relative substrate 4.In addition, 1 utilization of reflective liquid crystal display panel is reflected ambient light selectively and is come display image, and it has the optical thin films such as polaroid of the outside surface that is installed in relative substrate 4.In addition, 1 utilization of reflective liquid crystal display panel is reflected ambient light selectively and is come display image, and it has the optical thin films such as polaroid of the outside surface that is installed in relative substrate 4.

In colored display type liquid crystal indicator, display panels 1 has multiple display pixel, for example has the red pixel that shows red (R) and shows the green pixel of green (G) and the blue pixel that shows blue (B).That is, red pixel has the red color filter of the light that sees through red dominant wavelength.Green pixel has the green color filter of the light that sees through green dominant wavelength.Blue pixel has the blue color filter of the light that sees through blue dominant wavelength.These color filters are configured in the first type surface of array base palte 3 or relative substrate 4.Display panels 1 has the driving IC chip 11 that is configured in the outer peripheral portion outside (non-displaypart) 10 that is positioned at effective display part 6.In example shown in Figure 1, driving IC chip 11 is configured on the extension 10A of the array base palte 3 that extends laterally from the end 4A of relative substrate 4.In addition, display panels 1 has pad portion PP, and it has to connect and has a plurality of connection pads of flexible printed circuit board FPC from the driving circuit of drive signals to effective display part 6 that supply with.In example shown in Figure 1, pad portion PP and driving IC chip 11 are formed on the 10A of extension equally.

Each signal wire X that drive ICs mounted chip 11 has effective display part 6 in the display panels 1 supplies with the signal wire driver element 11X of drive signal (picture signal) and the scanning line driving unit 11Y that each sweep trace Y of effective display part 6 is supplied with drive signal (sweep signal).

Scanning line driving unit 11Y comprise to odd-numbered scan lines Y (1,3,5 ...) the 1st driver element 11Y1 of output drive signal and dual numbers sweep trace Y (2,4,6 ...) the 2nd driver element 11Y2 of output drive signal.These the 1st driver element 11Y1 and the 2nd driver element 11Y2 are configured in the both sides of signal wire driver element 11X respectively, in the middle of signal wire driver element 11x is clipped in.

In more detail, the 1st wiring group 20 of the end 10B of the 1st driver element 11Y1 by being configured in outer peripheral portion 10 and odd-numbered scan lines sweep trace Y (1,3,5 ...) be electrically connected.The 1st wiring group 20 by with odd-numbered scan lines Y (1,3,5 ...) the wiring W (1,3,5) that connects respectively constitutes.That is, from the drive signal of the 1st driver element 11Y1 output by each wiring (1,3,5 ...), the odd-numbered scan lines Y of supply correspondence (1,3,5 ...), make the display pixel PX of odd-numbered line bright and dark.That is, the contained on-off element 7 of each display pixel PX of odd-numbered line carries out the control of Push And Release according to the drive signal of being supplied with by corresponding scanning line Y.

The 2nd wiring group 30 of the other end 10C of the 2nd driver element 11Y2 by being configured in outer peripheral portion 1d and even-line interlace line Y (2,4,6 ...) be electrically connected.The 2nd wiring group 30 by with even-line interlace line Y (2,4,6 ...) connect respectively wiring W (2,4,6 ...) constitute.That is, from the drive signal of the 2nd driver element 11Y2 output by each wiring W (2,4,6 ...), the even-line interlace line Y of supply correspondence (2,4,6 ...), make the display pixel PX of even number line bright and dark.That is, the contained on-off element 7 of each display pixel PX of even number line carries out the control of Push And Release according to the drive signal of being supplied with by corresponding scanning line.

In addition, signal wire driver element 11x and each signal wire x (1,2,3 ...) be electrically connected.The contained on-off element 7 of each display pixel PX of each row will write pixel electrode 8 by the picture signal that signal lines X supplies with in the moment of conducting.

Array base palte 3 as shown in Figure 2, possess inspection unit 40, it is used for the quality of the bad relevant effective display parts 6 such as display quality with display pixel PX of to the wiring of the 1st wiring group 20 of outer peripheral portion 10 wiring bad, the 2nd wiring group wiring bad and effectively display part 6 and checks.This inspection unit 40 have with the signal wire inspection unit 41 of the corresponding setting of signal wire driver element 11X, with the 1st sweep trace inspection unit 42 of the corresponding setting of the 1st driver element 11Y1 of scanning line driving unit 11Y, with the 2nd sweep trace inspection unit 43 of the corresponding setting of the 2nd driver element 11Y2 and the pad portion 44 that the various inspections of each inspection unit 41,42,43 input are used with signal.

Holding wire inspection unit 41 has the driving signal of supply inspection usefulness when checking effective display unit 6, the holding wire inspection that is connected with each holding wire X simultaneously connects up 51 with driving.In addition, signal wire inspection unit 41 each signal wire x (1,2 ..., n) and the signal wire inspection have on-off element 61 with driving between the wiring 51.Have, holding wire inspection unit 41 has the check control wiring 55 that control signal is used in the inspection of supplying with the Push And Release of gauge tap element 61 when the effective display part 6 of inspection again.That is, the signal wire inspection is with driving wiring 51 and checking with control wiring 55 in signal wire inspection unit 41, plays as effectively showing to supply with in 6 o'clock and check with the inspection of the signal function with wiring checking.

On-off element 61 for example is made of thin film transistor (TFT).That is, the gate electrode 61G of each switch element 61 is electrically connected with check control wiring 55.In addition, the source electrode 61S of each switch element 61 is electrically connected with driving wiring 51 with the holding wire inspection.Have, the drain electrode 61D of each on-off element 61 is electrically connected with signal lines X again.

The 1st scan line inspection unit 42 have when checking effective display part 6, supply with the driving signal that checks usefulness, simultaneously with 21 for example connect up W1, W3, the W5 that respectively connect up of the 1st wiring group 20 ... the 1st inspection that connects is with driving wiring 52.In addition, the 1st scan line inspection unit 42 checks with driving between the wiring 52 to have switch element 62 in each wiring the 21 and the 1st.Have, the 1st sweep trace inspection unit 42 has supplies with gauge tap element wiring 55 when checking effective display part 6 again.This check control wiring 55 is public with holding wire inspection unit 41.That is, the 1st inspection is played conduct and supply with the inspection function that connects up that checks with signal when the effective display part 6 of inspection with driving wiring 52 and check control wiring 55 in the 1st scan line inspection unit 42.

On-off element 62 for example is made of thin film transistor (TFT).The gate electrode 62G of each switch element 62 is electrically connected with check control wiring 55.In addition, the source electrode 62S of each on-off element 62 and the 1st checks with driving wiring 52 and is electrically connected.Have, the drain electrode 62D of each switch element 62 is electrically connected with corresponding wiring 21 again.

The 2nd scan line inspection unit 43 have when checking effective display part 6, supply with the driving signal that checks usefulness, simultaneously with 31 for example connect up W2, W4, the W6 that respectively connect up of the 2nd wiring group 30 ... the 2nd inspection that connects is with driving wiring 53.In addition, the 2nd scan line inspection unit 43 checks with driving between the wiring 53 to have switch element 63 in each wiring the 31 and the 2nd.Have, the 2nd sweep trace inspection unit 43 has supplies with gauge tap element wiring 55 when checking effective display part 6 again.This check control wiring 55 is public with holding wire inspection unit 41.That is, the 2nd inspection is played conduct and supply with the inspection function that connects up that checks with signal when the effective display part 6 of inspection with driving wiring 53 and check control wiring 55 in the 2nd scan line inspection unit 43.

On-off element 63 for example is made of thin film transistor (TFT).The gate electrode 63G of each switch element 63 is electrically connected with check control wiring 55.In addition, the source electrode 63S of each on-off element 63 and the 2nd checks with driving wiring 53 and is electrically connected.Have, the drain electrode 63D of each switch element 63 is electrically connected with corresponding wiring 31 again.

Pad portion 44 have can to the holding wire inspection with an end input checking that drives wiring 51 with the input pad 71 that drives signal, can to the 1st check with an end input checking that drives wiring 52 with the input pad 72 that drives signal, can check with an end input checking that drives wiring 53 with the input pad 73 that drives signal and can be to an end input checking of check control wiring 55 input pad 75 with control signal the 2nd.

From the drive signal of input pad 71 inputs are the inspection signals that write the pixel electrode 8 of each display pixel PX at examination phase.To control the inspection signal that the Push And Release of the switch element 7 of each display pixel PX is used at examination phase from the driving signals of input pad 72 and 73 inputs.From the control signal of input pad 75 input is the inspection signal of using at the Push And Release of the on-off element 63 of the on-off element 62 of on-off element the 61, the 1st sweep trace inspection unit 42 of examination phase control signal wire inspection unit 41 and the 2nd sweep trace inspection unit 43.

Each signal wire x (1,2 ... n), respectively connecting up of the 21 and the 2nd wiring group 30 that respectively connects up of the 1st wiring group 20 31 has a connection pads PD that can be connected with driving IC chip 11 in their part midway respectively.

In addition, array base palte 3 makes display panels 1 and the necessary alignment mark AMP of parts aligned position as shown in Figure 1 when having on display panels 1 parts of installation.The parts that so-called display panels 1 is installed for example are polaroid driving IC chip, flexible printed circuit board etc.Alignment mark AMP is the metal film that for example forms with same operation with sweep trace, signal wire, pixel electrode etc.This alignment mark AMP is the extension 10A that is configured in array base palte 3, but is not particularly limited in this example in example shown in Figure 1, so long as on array base palte 3, can be the optional position, also can dispose a plurality of at array base palte in addition.In addition, the so-called alignment mark AMP here also can be the mark that mint-mark has identifying informations such as lot number and manufacturing resume.

In addition, display panels 1 has from array base palte 3 one sides comparative electrode 9 is supplied with the coupling part CN that public current potential is used to whole display pixels as shown in Figure 1.This coupling part CN is in example shown in Figure 1, it is the outer peripheral portion 10 of the big display panels 1 of configuration, but be not particularly limited in this example, so long as the relative position of the array base palte 3 of display panels 1 and relative substrate 4, can be the optional position, also can on display panels 1, dispose a plurality of in addition.

According to above-mentioned such liquid crystal indicator that consists of, can detect really that the wirings such as short circuit between the wiring of the 1st wiring group and each distribution broken string are bad, the wirings such as the short circuit between the wiring of the 2nd wiring group and each wiring broken string are bad, the bad situation of wiring on the panels the such as effectively wiring of display part 6 is bad even.

In addition, signal wire inspection unit the 41, the 1st sweep trace inspection unit 42 and the 2nd sweep trace inspection unit 43 are regional corresponding with configuration driven IC chip 11, are configured on the extension 10A of array base palte 3.Certainly, the holding wire inspection checks with driving wiring 52 the 2nd and checks with driving the regional corresponding of wiring 53 and check control wiring 55 and configuration driven IC chip 11 with driving wiring the 51, the 1st, is configured on the 10A of extension.These are checked with the length direction of wiring 51,52,53,55 along driving IC chip 11 and extend.That is, these are checked with wiring 51,52,53,55 when driving IC chip 11 is installed, and are overlapping with driving IC chip 11.In a word, can not enlarge appearance and size, and configuration inspection wiring on array base palte.

Have, the connection pads PD that can connect driving IC chip 11 is configured between effective display part 6 and the inspection unit 40 again.Therefore, supply with check the routing path of the inspection signal of usefulness, consistent with the routing path of supplying with the driving signal (picture signal and sweep signal) of using at effective display part 6 demonstration images from driving IC chip 11 in the effective relevant quality of display part 6 by inspection unit 40.Thereby, be judged to be 1 installation of qualified display panels for inspection and be judged to be normal driving IC chip 11, thereby can provide reliability high liquid crystal indicator by inspection unit 40.

" gathering of electric charge "

In above-mentioned such display unit that consists of, electric charge accumulates in easily and arranges in the bigger wiring of area in its manufacture process.Particularly the holding wire inspection checks with driving wiring the 52, the 2nd and checks with driving wiring 53, check control wiring 55 or comparative electrode 9 being supplied with public wiring that public current potential uses etc. to a plurality of display pixel PX supply with the inspection of the signal (inspection signal) that checks usefulness use and connect up in the inspection operation that checks effective display part 6 with driving wiring the 51, the 1st, because wide live width is arranged, and long length of arrangement wire arranged, therefore it is big area to be set, and electric charge gathers easily.The electric charge that gathers concentrates on the terminal part and the sweep of wiring easily, become and adjacent other conductive layer (wiring or electrode etc.) between produce the reason of static discharge.Such static discharge might cause short circuit or cause adjacent wiring broken string between the adjacent wiring that should keep state of insulation.

For example, as shown in Figure 3, near the switch element 63 the end that is arranged in check control wiring 55, semiconductor layer 63SC is electrically connected with source electrode 63S and drain electrode 63D.In such structure, if gather electric charge on the check control wiring 55, the upper electric charge of gate electrode 63G that then is configured near the switch element 63 of this terminal part is concentrated easily, might produce discharge, between the gate electrode 63G utmost point electrode 63S or gate electrode 63g and drain electrode 63D between cause short circuit.

In addition, as shown in Figure 4, if gather electric charge on the public wiring COM, then concentrate easily at its sweep BD electric charge, might produce discharge, between the wiring WX that supplies with other current potential and sweep BD, cause short circuit.In addition, when the discharge scale is big, might cause adjacent wiring WX broken string.Wirings such as such short circuit and broken string are bad owing to produce picture element flaw in completed display panels, therefore make and make the qualification rate reduction.

In addition, above-mentioned such display unit that consists of also can make the display unit mother substrate, makes simultaneously a plurality of display unit.That is, as shown in Figure 5, the display device that the manufacturing liquid crystal indicator is used has the 1st mother substrate M1 of substrate for array and the 2nd mother substrate M2 that relative substrate is used with mother substrate.These the 1st mother substrate M1 and the 2nd mother substrate M2 after line respectively, have a plurality of unit area C1, C2 that become single liquid display panel 1 ...

That is, the 1st mother substrate M1 and the 2nd mother substrate M2 comprise effective display part 6 in each unit area C, utilize the encapsulant that surrounds each effective display part 6 and dispose to paste mutually.These the 1st mother substrate M1 and the 2nd mother substrate M2 can keep liquid crystal layer 5 in the inboard that utilizes encapsulant to surround in each unit area C.The 1st mother substrate M1 that consists of is like this rule along each unit area c, by the array base palte 3 of each display panels 1 of such formation.In addition, the 2nd mother substrate M2 is rule along each unit area c, by the relative substrate 4 of each display panels 1 of such formation.

In addition, the 1st mother substrate M1 has in each unit area and supplies with the global semaphore line CSL that global semaphore is used outside the unit area.When this global semaphore line CSL checks the relevant quality of each unit area C, supply with various inspection signals before line.This global semaphore line CSL for example forms annular, and its part is connected with pad CSP with inspection.

In addition, the 1st mother substrate M1 have be configured in outside the unit area, simultaneously in manufacture process for the position alignment necessary alignment mark AMM of display device with mother substrate.That is, when this alignment mark AMM forms various conductive layers and insulation course on the 1st mother substrate M1, be used between the 1st mother substrate M1 and the various manufacturing installation or the 1st mother substrate M1 and various figure form position alignment between the mask of usefulness.In addition, the alignment mark AMM on the 1st mother substrate M1 also is used for the position alignment between the 1st mother substrate M1 and the 2nd mother substrate M2 when pasting the 2nd mother substrate M2.

This alignment mark AMM is identical with the alignment mark AMP that is configured in the unit area shown in Figure 1, forms with metal film.This alignment mark AMM is the neighboring area that is configured in the 1st mother substrate M1 in example shown in Figure 5, but is not particularly limited in this example, so long as on the 1st mother substrate M1, can be the optional position, also can dispose a plurality of in addition on the 1st mother substrate M1.In addition, the so-called alignment mark AMM here also can be the mark that mint-mark has identifying informations such as lot number and manufacturing resume.

With in the mother substrate, electric charge accumulates in easily and arranges in the bigger wiring of area in its manufacture process too in such display unit.Particularly the inspection of each unit area C is with wiring owing to gather electric charge easily, therefore might produce with reference to wiring condition of poor such as the same short circuit of Fig. 3 and Fig. 4 explanation or broken strings.

" configuration example "

Therefore, the relevant display unit of this example has and checks the conductive layer 90 that separates the relative configuration in interval of regulation with wiring 80.This conductive layer 90 has and checks with the discharge leader 90A of the relative and guiding inspection of wiring 80 with 80 charge discharges that gather that connect up.That is, discharge leader 90A be equivalent in the conductive layer 90 with check with the relative parts of wiring 80.In checking with wiring 80, the relative part 80A relative with discharge leader 90A can be the part midway that checks with wiring 80, also can be the end that checks with wiring 80.Discharge leader 90A preferably is configured to, and checks that the inspection of concentrating especially easily with the electric charge in the wiring 80 is relative with the interval that 80 the end of connecting up separates regulation.

Below explanation is checked with the topology example of wiring 80 with conductive layer 90.

In the example shown in Fig. 6 A and Fig. 6 B, conductive layer 90 is configured in and checks with in wiring 80 same layers, and is relative with the interval G that wiring 80 separates regulation with inspection.Therefore this conductive layer 90 can adopt and check with wiring 80 identical materials to form in same operation owing to be configured in same one deck with inspection with wiring 80.So, do not need to form in addition the operation of conductive layer 90, can not cause manufacturing cost to increase and make the qualification rate decrease.

In the example shown in Fig. 7 A and Fig. 7 B, conductive layer 90 be configured in insulating barrier 100 between during from check with the different layer of wiring 80, and with check that to separate the interval G of regulation relative with connecting up 80.Here, especially shown in Fig. 7 A, conductive layer 90 with check with wiring 80 be configured to their substrate (being array base palte 3) of configuration towards mutually not overlapping (that is, and in the face of array base palte 3, conductive layer 90 with check with 80 the interval G of connecting up non-vanishing).In addition, in the example shown in Fig. 7 b, it is the lower floor that is configured in insulation course 100 with wiring 80 with checking, conductive layer 90 is configured in the upper strata of insulation course 100, but be not limited to this example, can certainly will check the upper strata that is configured in insulation course 100 with wiring 80, conductive layer 90 is configured in the lower floor of insulation course 100.

In the example shown in Fig. 8 A and Fig. 8 B, conductive layer 90 is configured in and checks uses the 80 different layers that connect up, and insulating barrier 100 is mediate, and its at least a portion uses wiring 80 overlapping by insulating barrier 100 and inspection.That is, shown in Fig. 8 A, conductive layer 90 is configured to overlap each other in the face of their substrate (being array base palte 3) of configuration with wiring 80 with inspection, passes through between the insulating barrier 100 between them relative to each other simultaneously.In addition, in the example shown in Fig. 8 B, it is the lower floor that is configured in insulation course 100 with wiring 80 with checking, conductive layer 90 is configured in the upper strata of insulation course 100, but be not limited to this example, can certainly will check the upper strata that is configured in insulation course 100 with wiring 80, conductive layer 90 is configured in the lower floor of insulation course 100.In addition, in the example shown in Fig. 8 B, the inspection of formation is wide with the Width conductive layer 90 of wiring 80, but is not limited to this example, and the width of the conductive layer 90 that certainly forms also can be wider than checking with wiring 80.

The conductive layer 90 that in these examples, illustrates, be that guiding concentrates on the conductive layer that checks the charge discharge of using wiring 80, suppose to produce discharge (even or result's generation short circuit or broken string of conduct discharge) in the display panels of finishing, also not produce the conductive layer of any impact even be.For example, conductive layer 90 can with check with relative island configuration (or the floating dummy status of the electricity) conductive member that is of wiring 80, also can be the wiring etc. of supply specified signal (or assigned voltage) usefulness.At conductive layer 90 are whens wiring, preferably utilize and do not import in the display panels of finishing the wiring lines that shows usefulness as conductive layer 90.That is, utilize as the wiring of conductive layer 90 preferably after flexible printed circuit board FPC or driving IC chip etc. are installed not input signal or input make each switch element 61,62 of coordinating in the inspection unit 40,63 wirings for the signal fixed under the off-state.By utilizing such wiring or island conductive member as conductive layer 90, though for example with check with wiring 80 short circuits, in the display panels of finishing, can not produce any impact for display quality yet.In addition, are whens wiring at conductive layer 90, if can suppress to be small-scale discharge, reach not produce short circuit or broken string and release and check program with the electric charge of wiring 80, then also can utilize input to the wiring of the signal that shows usefulness as conductive layer 90.

Under the situation of the example shown in the example shown in Fig. 7 A and Fig. 7 B or Fig. 8 A and Fig. 8 B, checking will be with relative state configuration with wiring 80 and conductive layer 90, and conductive layer 90 can adopt with checking with the different layer of wiring 80 and go up the electrode of formation or the identical materials that connects up forms in same operation.For example, checking when being check control wiring 55 with wiring 80 that conductive layer 90 can adopt from insulating barrier 100 is intervenient and form with checking the source electrode that upward disposes with the different layer of wiring 80 or let out the identical material such as utmost point electrode in same operation.Therefore, do not need to form in addition the operation of conductive layer 90, can not cause the manufacturing cost increase and make qualified degree decrease.

Conductive layer 90 and inspection are set at the distance that can guide discharge with the interval G of the regulation between the wiring 80, and preferably as far as possible little, if but both short circuits (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown.Therefore, interval G preferably is set at the distance that both are in electric insulating state.

In the example shown in the example shown in Fig. 6 A and Fig. 6 B or Fig. 7 A and Fig. 7 B, the interval G of regulation with respect to configuration conductive layer 90 and check with the array base palte 3 of wiring 80 towards distance.In addition, in the example shown in Fig. 8 A and Fig. 8 B, because conductive layer 90 uses wiring 80 by insulating barrier 100 overlay configuration with inspection, so both intervals are equivalent in fact the thickness G of insulating barrier 100.In addition, in the situation about having, in upper strata (among the figure for conductive layer 90) climbs to step part BP in the lower floor (among the figure for checking with wiring 80), often be sandwiched in the wall thickness G ' of the insulating barrier 100 between upper strata and the lower floor.In a word, conductive layer 90 and check the interior bee-line of section that is defined as the array base palte 3 that is equivalent to dispose them with the interval between the wiring 80.

Example shown in Fig. 6 A and Fig. 6 B is such, with conductive layer 90 and check that when being configured in same layer with wiring 80, according to the resolution limit of these figures formation operations, both interval G have the limit to a certain degree.In addition, example shown in example shown in Fig. 7 A and Fig. 7 b or Fig. 8 A and Fig. 8 B is such, with conductive layer 90 and check when being configured in different layers with wiring 80, be not subjected to these figures to form the restriction of operation, even in the face of array base palte 3,, also can utilize insulation course 100 to form both and be the state of electrical isolation with both overlay configuration.That is, compare, can more dwindle conductive layer 90 and the interval of checking with wiring 80, can easier guiding discharge with checking situation about being configured in one deck with wiring 80 and conductive layer 90.In addition, by insulating barrier 100 with conductive layer 90 when checking with wiring 80 overlay configuration because both intervals are equivalent to the beeline in the section, therefore can utilize the thickness of insulating barrier 100 to control both intervals.The thickness of insulating barrier 100 can be set at the 0.1 μ m order of magnitude, compares with the situation at the interval of wanting to form regulation in the array base palte face, can form littler interval, can cause easilier discharge.

In addition, example shown in Fig. 6 A and Fig. 6 B is such, when forming inspection with wiring 80 and conductive layer 90 with approaching interval with one deck, must make figure with high precision and form necessary exposure mask in the operation, perhaps form to expose with high precision in the operation and use the mask alignment position at figure.Therewith differently be, example shown in example shown in Fig. 7 A and 7b or Fig. 8 A and Fig. 8 b is such, owing to form inspection with wiring 80 and conductive layer 90 at different layers, does not therefore need to satisfy such requirement, manufacturing cost can be reduced, the manufacturing qualification rate can be improved simultaneously.

In above-mentioned example, conductive layer 90 with check with namely discharge leader 90A and check with the shapes with relative part 80A conductive layer 90 80 that connect up and be not limited to rectangle of the relative part of wiring 80.That is, discharge leader 90A and group are at least one side of part 80A shape of charge concentration (being sharp shape) preferably.That is, part 80A has at least one polygon coign part of giving prominence to conductive layer 90 relatively.In addition, discharge leader 90A has at least one polygon coign part of giving prominence to wiring 80 to checking.At least one summit of the coign part of discharge leader 90A is relative across the interval of regulation with wiring 80 with inspection.In addition, at least one summit of the coign of part 80A part is relative across the interval of regulation with conductive layer 90 relatively.

If more specifically be illustrated, then can be shown in Fig. 9 A, at least one side of part 80A and discharge leader 90A has a quadrilateral coign portion C, has the shape of two summit T relatively.In addition, also can be shown in Fig. 9 B, at least one side of part 80A and discharge leader 90A has a triangle coign portion C, has the shape of a summit T relatively.Have again, also can be shown in Fig. 9 C, at least one side of part 80A and discharge leader 90A has a plurality of (n) triangle coign portion C, has the shape of a plurality of (n) summit T relatively.That is, the example shown in Fig. 9 C is the shape (shape that promptly has a plurality of summit T) that expression has the serrate coign portion C that is formed by continuous triangle.In the example shown in Fig. 9 B and Fig. 9 C, compare with the example shown in Fig. 9 A, can make summit T form more sharp-pointed shape, electric field is concentrated easily.

In addition, also can be shown in Fig. 9 D, at least one side of part 80A and discharge leader 90A has stepped length different a plurality of coign portion C 1, C2, C3 relatively ... shape.In the example shown in Fig. 9 D, the interval (or lap) between the part relative with such shape can be different to each coign part.

In addition, relatively at least one side of part 80A and discharge leader 90A has n m limit shape coign portion C, has the shape (not shown) on a plurality of summits, about the shape of summit T, concentrate then best more sharp-pointed shape easily if consider electric field.In addition, a plurality of coign portion C and a plurality of summit T do not need to be arranged in a row, any direction that yet can be in real estate.

Part 80A discharge leader 90A is when the coign portion C that has shown in Fig. 9 A to Fig. 9 C relatively, and the interval G of so-called regulation also can be defined as the distance of front end (being summit T) the relative part on the other side of coign portion C.

Figure when checking with the discharge leader 90A of the relative part 80A of wiring 80 and conductive layer 90 relative to each other makes up and is not limited to relative partly each other the combination of the rectangle shown in Fig. 6 A and Fig. 7 A.

That is, can be shown in Figure 10 A, will check with wiring 80 with conductive layer 90 relative to each other the time, be that relative part of the side is the such combination of triangle coign part for rectangle the opposing party's relative part.In addition, also can be shown in Figure 10 B, will check with wiring 80 with conductive layer 90 relative to each other the time, be that relative part of the side is the such combination of zigzag coign part for rectangle the opposing party's relative part.Have again, also can be shown in Figure 10 C, in the time will checking that usefulness wiring 80 and conductive layer 90 are relative to each other, the relative part that is a side is that triangle, the opposing party's relative part is the such combination of triangle coign part.In the example shown in this Figure 10 C, the summit T of a best side's relative part is relative with beeline with the summit T of the opposing party's relative part.Have again in addition, also can be shown in Figure 10 D, in the time will checking that usefulness wiring 80 and conductive layer 90 are relative to each other, the relative part that is a side is that zigzag, the opposing party's relative part is the such combination of zigzag coign part.In the example shown in this Figure 10 D, the summit T of a best side's relative part is relative with beeline with the summit T of the opposing party's relative part.

In addition, in the time will checking with the discharge leader 90A of wiring 80 relative part 80A and conductive layer 90 relative to each other, check with connect up 80 and the graphics combine of the lap OL that overlaps each other of conductive layer 90 be not limited to relative partly each other the combination of the rectangle shown in Fig. 8 A.That is, have at least one polygon coign part as long as check at least one side with wiring 80 and conductive layer 90 as the easy shape of concentrating of electric charge, the part that comprises at least a summit of this coign part consists of lap OL and gets final product.

In front in the example with reference to Fig. 9 B and Fig. 9 C explanation, with the example shown in Fig. 9 A relatively, can prolong the edge length that consists of lap OL, and can make summit T form more sharp-pointed shape, electric field is concentrated easily.

Inspection in above-mentioned such shape is used in wiring 80 and the conductive layer 90, as long as the part that comprises at least a summit of the coign of at least one square one-tenth part consists of lap OL.That is, conductive layer 90 can be configured to have at least one polygon coign portion C, and the part that comprises a summit T at least of coign portion C is overlapping with wiring 80 with inspection.In addition, check, can be configured to have at least one polygon coign portion C, and the part that comprises a summit T at least of coign portion C and conductive layer 90 are overlapping with wiring 80.

For example, shown in Figure 11 A, when the discharge leader 90A of conductive layer 90 has a triangle coign portion C,, conductive layer 90 use wiring 80 overlapping with inspection as long as being configured to whole this coign portion C.In this case, the summit T of the coign portion C of conductive layer 90 is overlapping with wiring 80 with inspection certainly.Perhaps when inspection has a unexpected portion C of triangle with wiring 80, as long as inspection is overlapping with the discharge leader 90A that wiring 80 is configured to whole this coign portion C and conductive layer 90.In this case, also inspection is overlapping with the summit and the conductive layer 90 of the coign portion C of wiring 80 certainly.By utilizing such configuration to consist of lap OL, thereby check the summit T that concentrates easily by electric field with wiring 80 and conductive layer 90, interval with the thickness that is equivalent in fact insulating barrier 100 disposes relatively, can guide to check with the electric charge that gathers on 80 that connects up and discharge.

In addition, shown in Figure 11 B, when the discharge leader 90A of conductive layer 90 has a plurality of triangle coign portion C, as long as conductive layer 90 be configured to whole these coign portion C with check with wiring 80 overlapping.In this case, the summit T of the coign portion C of conductive layer 90 is overlapping with wiring 80 with inspection certainly.Perhaps when inspection has the unexpected portion C of a plurality of triangles with wiring 80, as long as inspection is overlapping with the discharge leader 90A that wiring 80 is configured to whole these coign portion C and conductive layer 90.In this case, also inspection is overlapping with the summit and the conductive layer 90 of the coign portion C of wiring 80 certainly.By utilizing such configuration to consist of lap OL, thereby check the summit T that concentrates easily by electric field with wiring 80 and conductive layer 90, interval with the thickness that is equivalent in fact insulating barrier 100 disposes relatively, can guide to check with the electric charge that gathers on 80 that connects up and discharge.

Have, shown in Figure 11 C, when the discharge leader 90A of conductive layer 90 had a triangle coign portion C, conductive layer 90 also can be configured to the part that comprises a summit T of this coign portion C and use wiring 80 overlapping with inspection again.In this case, the special preferably summit T of the coign portion C of conductive layer 90 is positioned at and climbs up the step part BP that checks with wiring 80.Perhaps checking when having a triangle coign portion C with wiring 80, checking that also can be configured to the discharge leader 90A of the part that comprises a summit T of this coign portion C and conductive layer 90 overlapping with connecting up 80.In this case too, check that preferably the summit T with 80 the coign portion C of connecting up is positioned at the step part BP that climbs up conductive layer 90.By utilizing such configuration to consist of lap OL, thereby check the summit T that concentrates easily by electric field with wiring 80 and conductive layer 90, slight gap with the wall thickness that is equivalent to marginal insulating barrier 100 disposes relatively, more can guide to check with the electric charge that gathers on 80 that connects up and discharge.

Have again in addition, shown in Figure 11 D, when the discharge leader 90A of conductive layer 90 has a plurality of triangle coign portion C, the part that comprises a summit T that conductive layer 90 also can be configured to these coign portion C with check with wiring 80 overlapping.In this case, the special preferably summit T of the coign portion C of conductive layer 90 is positioned at and climbs up the step part BP that checks with wiring 80.Perhaps checking when having a plurality of triangle coign portion C with wiring 80, checking that also can be configured to the discharge leader 90A of the part that comprises a summit T of these coign portion C and conductive layer 90 overlapping with connecting up 80.In this case too, check that preferably the summit T with 80 the coign portion C of connecting up is positioned at the step part BP that climbs up conductive layer 90.By utilizing such configuration to consist of lap OL, thereby check the summit T that concentrates easily by electric field with wiring 80 and conductive layer 90, slight gap with the wall thickness that is equivalent to marginal insulating barrier 100 disposes relatively, more can guide to check with the electric charge that gathers on 80 that connects up and discharge.

Have again, shown in Figure 11 E, have a plurality of coign portion C 1, C2 at the discharge leader 90A of conductive layer 90 ... the time, conductive layer 90 also can be configured to the part that comprises a summit T at least of these coign parts and use wiring 80 overlapping with inspection.In this case, the summit T of a coign part (being C3 in the example shown in Figure 11 E) of special preferably conductive layer 90 is positioned at and climbs up the step part BP that checks with wiring 80.Perhaps checking with wiring 80 to have a plurality of coign portion C 1, C2 ... the time, check that also can be configured to these a coigns part that comprises at least a summit T and discharge leader 90A of conductive layer 90 partly with wiring 80 overlapping.In this case too, check that preferably the summit T with 80 the coign portion C of connecting up is positioned at the step part BP that climbs up conductive layer 90.By utilizing such configuration to consist of lap OL, thereby check the summit T that concentrates easily by electric field with wiring 80 and conductive layer 90, slight gap with the wall thickness that is equivalent to marginal insulating barrier 100 disposes relatively, more can guide to check with the electric charge that gathers on 80 that connects up and discharge.

The shape that Fig. 9 D is described to have the different a plurality of coigns parts of length like that especially as Figure 11 E explanation, will check be configured in wiring 80 and conductive layer 90 different layers and also mutually in a part of stacked situation use effective.That is, inspection is different because of various conditions with the quantity of electric charge that gathers in the wiring 80.Thereby, utilize discharge leader 90A to guide easily the optimum distance of discharge also different because of various conditions.So, check with wiring 80 and conductive layer 90 best take with the distance of the leader 90A that discharges as various condition relative.By like this, no matter check with the size of the quantity of electric charge that gathers in the wiring 80 how, utilize discharge leader 90A all easily guiding discharge.

In addition, suppose to utilize discharge leader 90A to guide the inspection of the best of discharge to use wiring 80 known easily with the interval of conductive layer 90, but will check when being configured in different layer with wiring 80 and conductive layer 90, sometimes because the alignment precision relation when form checking respectively, and can not form optimal spacing with wiring 80 and conductive layer 90.Therefore, the leader 90A that for example discharges can make some coign parts with optimal spacing and detection wiring 80 relative configurations by adopting the above-mentioned shape that has like that the different a plurality of coign parts of length.Thereby, more can guide the electric charge that checks with gathering in the wiring 80 to discharge.

In addition, in the example of Figure 11 A to Figure 11 E, be that the coign portion C that will comprise summit T is configured in the upper strata, but be not limited to this example, the coign portion C that comprises summit T can certainly be configured in lower floor.In addition, be that the width of formation lower floor is wideer than the upper strata, but be not limited to this example that the width that can certainly form the upper strata is wideer than lower floor.

According to such formation, can utilize the discharge with conductive layer 90, will check the charge discharging resisting that gathers on 80 with connecting up.By like this, can prevent in advance and and check undesirable discharge of producing between 80 adjacent its these conductive layers with connecting up and undesirable short circuit of causing because of this discharge and the generation of broken string.

Thereby, in the examination phase of before flexible printed circuit board FPC and driving IC chip 11 are installed, the relevant quality of effective display part 6 being checked, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 1) conductive layer connects up with control with inspection; With layer configuration

In this example 1, the configuration example in the end of check control wiring 55 55E guiding discharge is described.Shown in Figure 12 A and Figure 12 B, with the same layer of the gate electrode 63G shape all-in-one-piece check control wiring 55 of switch element 63 in, the end 55E of check control wiring 55 and conductive layer 90 are across relative configuration the in interval of regulation.The end 55E relative with conductive layer 90 of check control wiring 55 has to the outstanding coign portion C of conductive layer 90.In addition, the discharge leader 90A relative with check control wiring 55 of conductive layer 90 has to the outstanding coign portion C of check control wiring 55.That is, check control wiring 55 is configured in the same layer with conductive layer 90, so that the summit T of mutual coign portion C is identical across the interval G of regulation.

According to such formation, can utilize the discharge with conductive layer 90, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

(embodiment 2) conductive layer and check control wiring; Different layer configuration

In present embodiment 2, the configuration example in the end of check control wiring 55 55E guiding discharge is described.Shown in Figure 13 A and Figure 13 B, conductor layer 90 is configured in the lower floor of insulation course 100.In addition and the gate electrode 63g shape all-in-one-piece check control wiring 55 of switch element 63 be configured in the upper strata of insulating barrier 100.The conductive layer 90 relative end 55E of check control wiring 55 have the coign portion C of giving prominence to conductive layer 90.In addition, the discharge leader 90A relative with check control wiring 55 of conductive layer 90 has to the outstanding coign portion C of check control wiring 55.That is, on the layer different from conductive layer 90 configuration inspection with the end 55E of control wiring 55 so that in the face of array base palte 3 the summit T of mutual coign portion C to separate the interval G of regulation identical with conductive layer 90.

According to such formation, can utilize the discharge with conductive layer 90, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

(embodiment 3) conductive layer and check control wiring; Different layer and a part of overlay configuration

In present embodiment 3, the configuration example in the end of check control wiring 55 55E guiding discharge is described.Shown in Figure 14 A and 14b, conductor layer 90 is configured in the upper strata of insulation course 100.In addition and the gate electrode 63g shape all-in-one-piece check control wiring 55 of switch element 63 be configured in the lower floor of insulating barrier 100.Check control wiring 55 and relative part conductive layer 90, to be that end 55E forms Width conductive layer 90 wide.Conductive layer 90 have discharge leader 90A with relative part check control wiring 55, discharge leader 90A has a plurality of triangle coign portion C, and the end 55E of the part that comprises each summit of coign portion C and check control wiring 55 is overlapping.That is, conductive layer 90 is configured in the layer different from check control wiring 55, and the end 55E overlay configuration by insulating barrier 100 at least a portion and check control wiring 55.

According to such formation, can utilize the discharge with conductive layer 90, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

" concrete example 1 " conductive layer and connection pads or connecting wiring

Above-mentioned display device has connection pads PD that can be connected with driving IC chip 11 or the pad portion PP with a plurality of connection pads that can be connected with flexible printed circuit board FPC.

Below the above-mentioned conductive layer 90 of explanation is situations of these connection pads or the connecting wiring that is connected with connection pads.For example, as shown in figure 15, the connection pad CP1 that comprises among the pad portion PP with check with 80 relative configurations the in interval that separate regulation of connecting up.Perhaps as shown in figure 16, the interval and inspection wiring 80 relative configurations that separate regulation with the connecting wiring CW that connection pads CP1 connects.

These connect pad CP1 and connecting wiring CW guides to check the conductive layer that discharges with the electric charge of concentrating in the wiring 80, are that hypothesis generation discharge (perhaps the result as discharge produces short circuit or broken string) does not produce the conductive layer of any impact yet in the display panels of finishing.That is, connect pad CP1 and connecting wiring CW be with the display panels of finishing after pad portion PP is connected flexible printed circuit board FPC in do not import conductive layer to the signal that shows usefulness.That is, connecting pad CP1 and connecting wiring CW does not import any signal or makes each switch element 61,62 of arranging the inspection unit 40,63 conductive layers for the signal fixed under the off-state from the drive circuit input of flexible printed circuit board FPC from the drive circuit of flexible printed circuit board FPC after flexible printed circuit board FPC and driving IC chip etc. are installed.

Connect pad CP1 and connecting wiring CW by such conductive layer is used as, though for example with check with wiring 80 short circuits, in the display panels of finishing, can not produce any impact for display quality yet.In addition, if can suppress to be small-scale discharge, reach not produce short circuit or broken string and release and check degree with the electric charge of wiring 80, also input can be used as the conductive layer of the signal that shows usefulness and connect pad CP1 and connecting wiring CW.

In addition, conductive layer 90 be the connection PD that can be connected with driving IC chip 11 and during with connecting wiring that this connection pads PD is connected too, as Figure 15 and shown in Figure 16, also these connection pads PD or connecting wiring and inspection can be separated relative configuration the in interval of regulation with wiring 80.These connection pads PD and connecting wiring also so long as with the display panels of finishing after connection pads PD is connected driving IC chip 11 in the conductive layer do not imported the signal that shows usefulness get final product.

Connection pads CP1 or connecting wiring CW and inspection are the distances that can guide discharge with the interval G of the regulation between the wiring 80, preferably as far as possible little, but if both are short circuit (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

According to such formation, can utilize the discharge with connection pads CP1 or connecting wiring CW, will check the charge discharging resisting that gathers on 80 with connecting up.By like this, can prevent in advance and and check undesirable discharge of producing between 80 adjacent its these conductive layers with connecting up and undesirable short circuit of causing because of this discharge and the generation of broken string.

Thereby, in the examination phase of before flexible printed circuit board FPC and driving IC chip 11 are installed, the relevant quality of effective display part 6 being checked, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 4)

In this example 4, illustrate that the connection pad that utilizes the function that plays a role conductive layer 90 guides the configuration example of discharge at the end 55E that plays a role the check control wiring 55 that checks the function of using wiring 80.Shown in Figure 17 A, array base palte 3 has the pad portion PD that comprises connection pads CP1 in the 10A of extension.In addition, array base palte 3 has the gate electrode 63G shape all-in-one-piece check control wiring 55 with switch element 63.In addition, flexible printed circuit board FPC has the wiring portion PP ' that comprises the connection pads CP2 that can be connected with the connection pads CP1 of the pad portion PP of array base palte 3.In such formation, when the pad portion PP with array base palte 3 is electrically connected with the wiring portion PP ' of flexible printed circuit board FPC, connects pad CP1 and be connected pad CP2 electrical connection.

Shown in Figure 17 B and Figure 17 C, connection pads CP1 is configured in the upper strata of insulation course 100.Check control wiring 55 is configured in the lower floor of insulating barrier 100.That is, connect pad CP1 and be configured in the layer different from check control wiring 55, and separate relative configuration of interval G of regulation with check control wiring 55.Here, particularly connection pads CP1 is configured to by insulation course 100 its at least a portion (portion C A relatively) overlapping with the end 55E of control wiring 55 with inspection.

Check control wiring 55 with the relative part that connects pad CP1, be that end 55E forms Width and connects pad CP1 and want wide rectangle.Connect pad CP1 and have discharge leader 90A with the relative part of check control wiring 55, discharge leader 90A has a plurality of triangle coign portion C, and the part that comprises each summit T of jut C is overlapping with the end 55E that detects with control wiring 55.That is, the end 55E of check control wiring 55 and the discharge leader 90A that connects pad CP1 dispose across predetermined distance G is relative.At this moment, the predetermined distance G across the thickness that is equivalent to insulation course 100 is relative in fact with end 55 for the summit T of the coign portion C that comprises among the discharge leader 90A.

According to such formation, can utilize the discharge with connection pads CP1, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.At this moment, because the summit T of the connection pad CP1 of the shape of easily concentrated electric field disposes near the therefore easily guiding discharge T of summit so that beeline is relative with end 55E.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

" concrete example 2 " conductive layer and empty graphic

Above-mentioned display device has the empty graphic DP and the empty group DG of power supply dummy status, and empty group DG has by the conductive member that is the island configuration and forms, has the spaced a plurality of empty graphic DP that float the spaced-apart regulation of dummy status with electricity.Below the above-mentioned conductive layer 90 of explanation is situations of empty graphic DP.For example as shown in figure 18, empty graphic DP with check with 80 relative configurations the in interval that separate regulation of connecting up.Perhaps as shown in figure 19, at least one empty graphic DP of empty group DG with check with 80 relative configurations the in interval that separate regulation of connecting up.

These empty graphics DP is that guiding checks the conductive layer that discharges with the electric charge of concentrating in the wiring 80, even be that hypothesis produces discharge (perhaps the result as discharge produces short circuit or broken string) and also do not produce the conductive layer of any impact in the display panels of finishing.That is, empty graphic DP is the conductive layer of not importing in the display panels of finishing after connecting flexible printed circuit board FPC and driving IC chip etc. the signal that shows usefulness.That is, empty graphic DP is the conductive layer of not importing any signal after flexible printed circuit board FPC and driving IC chip etc. are installed from these drive circuits.By such conductive layer is used as empty graphic DP, though for example with check with wiring 80 short circuits, in the display panels of finishing, can not produce any impact for display quality yet.

In addition, the empty graphic DP that consists of sky group DG shown in Figure 19 with check can be as Fig. 6 A and Fig. 6 B shown in wiring 80 inspection with the relation of wiring 80 and conductive layer 90, the interval G of spaced-apart regulation is configured in same layer.In addition, empty graphic DP with detect with wiring 80 also can image pattern 7A and Fig. 7 B shown in inspection such with wiring 80 with the relation of conductive layer 90, be configured in different layers mutually by insulation course 100.Have again, empty graphic DP with check with wiring 80 also can pixel 8A and Fig. 8 B shown in inspection such with the relation of conductive layer 90 with wiring 80, be configured in mutually different layers and at least a portion overlay configuration respectively by insulating barrier 100.

In addition, consist of two adjacent empty graphic DP of sky group DG shown in Figure 19 too, inspection that can be shown in Fig. 6 A and Fig. 6 b is with the relation of wiring 80 with conductive layer 90, all the interval G of spaced-apart regulation is configured in same layer, inspection that also can be shown in Fig. 7 A and Fig. 7 b is with the relation of wiring 80 with conductive layer 90, be configured in mutually different layers by insulating barrier 100, inspection that also can be shown in Fig. 8 A and Fig. 8 B is with the relation of wiring 80 with conductive layer 90, is configured in mutually different layers and at least a portion overlay configuration respectively by insulating barrier 100.

Empty graphic DP and check that with the interval G of the regulation between the wiring 80 and the interval G that constitutes the regulation between the empty graphic DP of the empty DG of group be the distance that can guide discharge, preferably as far as possible little, but if both are short circuit (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

In addition, when forming inspection with wiring 80 and empty graphic DP with approaching interval with one deck, must make figure with high precision and form necessary exposure mask in the operation, perhaps form to expose with high precision in the operation and use the mask alignment position at figure, but by adjacent inspection is formed on different layers with wiring 80 and empty graphic DP or adjacent two empty graphics, just do not need to satisfy such requirement, can reduce manufacturing cost, can improve the manufacturing qualification rate simultaneously.

In addition, also can dispose as shown in Figure 20, good empty graphic DP is identical with the interval that wiring 80 separates regulation with inspection with one end (i.e. the 1st relative part) DA1, uses its other end (i.e. the 2nd relative part) DA2 relative with the interval that the wiring WD that can supply with specified signal (or assigned voltage) separates regulation simultaneously.At this moment, check with wiring 80, empty graphic DP and the WD that connects up can be shown in Fig. 6 A and Fig. 6 B like that all be configured in same one deck, also can be shown in Fig. 7 A and Fig. 7 B such at least one be configured in different layers by insulation course, such at least one part that also can be shown in Fig. 8 A and Fig. 8 b is configured in different layer and overlapping with other by insulation course.

In addition, also can be as shown in figure 21, empty group DG comprise one end DA1 with check with wiring 80 rule open regulation the relative configuration in interval the 1st empty graphic DP1 and with the one end DA2 and the wiring WD that can supply with specified signal (or assigned voltage) separate regulation relative the 2nd empty graphic DP2 that disposes in interval.At this moment, check with wiring 80, constitute the empty graphic DP of empty group DG and the DP that connects up can be from like that being configured in same one deck shown in Fig. 6 A and Fig. 6 B, also can be shown in Fig. 7 A and Fig. 7 B such at least one be configured in different layers by insulation course, such at least one part that also can be shown in Fig. 8 A and Fig. 8 b is configured in different layer and overlapping with other by insulation course.

Figure 20 and distribution WD shown in Figure 21 are the wirings of not importing any signal after flexible printed circuit board FPC and driving IC chip etc. are installed from these drive circuits, or make each switch element 61,6263 wirings for signal fixing under the off-state that arrange the inspection unit 40 from these drive circuit inputs.In addition, if can suppress to be small-scale discharge, reach the electric charge that does not produce short circuit or broken string and the inspection usefulness wiring 80 of releasing, the WD that then connects up also can be the wiring of importing the signal that shows usefulness.

According to such formation, can utilize with the discharge of empty graphic DP and will check the charge discharging resisting that gathers with in the wiring 80.By like this, can prevent in advance and and check undesirable discharge of producing between 80 adjacent its these conductive layers with connecting up and undesirable short circuit of causing because of this discharge and the generation of broken string.

Thereby, in the examination phase of before flexible printed circuit board FPC and driving IC chip 11 are installed, the relevant quality of effective display part 6 being checked, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 5)

In present embodiment 5, illustrate to utilize to play as the empty graphic of the function of conductive layer 90 and playing as the configuration example that checks with the end 55E guiding discharge of the check control wiring 55 of the function of wiring 80.Shown in Figure 22 A, array base palte 3 has the pad portion PD that comprises connection pads CP1 in the 10A of extension.In addition, array base palte 3 has the gate electrode 63G shape all-in-one-piece check control wiring 55 with switch element 63.In addition, flexible printed circuit board FPC has the wiring portion PP ' that comprises the connection pads CP2 that can be connected with the connection pads CP1 of the pad portion PP of array base palte 3.In such formation, when the pad portion PP with array base palte 3 is electrically connected with the wiring portion PP ' of flexible printed circuit board FPC, connects pad CP1 and be connected pad CP2 electrical connection.

In addition, at check control wiring 55 and the sky group DG that is connected between the pad CP1 configuration and is consisted of by a plurality of empty graphic DP.That is, shown in Figure 22 B and Figure 22 C, empty group DG comprises the 1st empty graphic DP1 and relative the 2nd empty graphic DP2 that disposes with the interval that is connected pad CP1 regulation regulation that separates the relative configuration in interval of regulation with check control wiring 55.Other empty graphic DP that consists of empty group DG is configured in different layers from the 1st empty graphic DP1 and the 2nd empty graphic DP2 by insulating barrier 100.

The 1st empty graphic DP1 is configured in different layers from check control wiring 55 by insulating barrier 100.Here, particularly at least a portion of the 1st empty graphic DP1 (relatively part DA1) by the end 55E overlay configuration of insulating barrier 100 with check control wiring 55.The 2nd empty graphic DP2 is configured in different layers from connection pad CP1 by insulating barrier 100.Here, particularly at least a portion of the 2nd empty graphic DP2 (relatively part DA2) by the end CPE overlay configuration of insulation course 100 with connection pads CP1.

Check control wiring 55 and relative part the 1st empty graphic DP1, be that end 55E forms Width the 1st empty graphic DP1 and wants wide rectangle.Connection pads CP1 and relative part the 2nd empty graphic DP2, be that end CPE forms width than the wide rectangle of the 2nd wide D graphics P2.

The 1st empty graphic DP1 and relative part DA1 check control wiring 55 play the function as the discharge leader.This relative part DA1 has leg-of-mutton coign portion C, and it is overlapping to comprise the end 55E of the part of summit T of coign portion C and check control wiring 55.That is, the end 55E of check control wiring 55 separates predetermined distance G with the relative part DA1 of the 1st empty graphic DP1 and relatively disposes.At this moment, the summit T of the coign portion C that comprises among the relative part DA1 is relative with the predetermined distance G that end 55E separates the thickness that is equivalent to insulation course 100 in fact.

The 2nd empty graphic DP2 have leg-of-mutton coign portion C with relative part DA2 connection pads CP1, and it is overlapping to comprise the end CPE of the part of summit T of coign portion C and connection pads CP1.That is, the end CPE of connection pads CP1 separates predetermined distance G with the relative part DA2 of the 2nd empty graphic DP2 and disposes relatively.At this moment, the summit T of the coign portion C that comprises among the relative part DA2 is relative with the predetermined distance G that end CPE separates the thickness that is equivalent to insulation course 100 in fact.

According to such formation, can utilize with the discharge of the 1st empty graphic DP1 or with the discharge of other empty graphic that is arranged side by side with it, even with the 2nd empty graphic DP2 of sky group DG discharge near the connection pads CP1 of configuration, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.At this moment, because the summit T of the empty graphic of the shape of easily concentrated electric field disposes near the therefore easily guiding discharge T of summit so that beeline is relative with end 55E.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

" concrete example 3 " conductive layer and public wiring

Above-mentioned display device has the public wiring COM that a plurality of display pixel PX is supplied with public current potential in effective display part 6.Below the above-mentioned conductive layer 90 of explanation is situations of public wiring COM.For example such as Figure 23 and shown in Figure 24, public wiring COM with check with 80 relative configurations the in interval that separate regulation of connecting up.In example shown in Figure 23, public wiring COM has component COMB, and this component COMB is relative with the interval that wiring 80 separates regulation with inspection.In addition, in example shown in Figure 24, the terminal part CE of public wiring COM is relative with the interval that wiring 80 separates regulation with inspection.

This public wiring COM is that guiding checks the conductive layer that discharges with the electric charge of concentrating in the wiring 80, even be that hypothesis produces discharge and also do not produce the conductive layer of any impact in the display panels of finishing.That is in the display panels that, public wiring COM finishes comparative electrode 9 is supplied with the wiring that public current potential is used to whole display pixel PX after connecting flexible printed circuit board FPC and driving IC chip etc.Therefore, be preferably in public wiring COM as the result who discharges and do not produce short circuit or broken string, but if can suppress to be small-scale discharge, reach and do not produce short circuit or broken string and release and check degree, then can utilize the public wiring COM guiding usefulness of discharging with the electric charge of wiring 80.

The interval G of the regulation between public wiring COM and the inspection wiring 80 is the distance that can guide discharge, preferably as far as possible little, if but both short circuits (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

According to such formation, can utilize the discharge with public wiring COM, will check the charge discharging resisting that gathers on 80 with connecting up.By like this, can prevent in advance and and check undesirable discharge of producing between 80 adjacent its these conductive layers with connecting up and undesirable short circuit of causing because of this discharge and the generation of broken string.

Thereby, in the examination phase of before flexible printed circuit board FPC and driving IC chip 11 are installed, the relevant quality of effective display part 6 being checked, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 6)

In present embodiment 6, illustrate to utilize to play as the public wiring COM of the function of conductive layer 90 and playing as the configuration example that checks with the end 55E guiding discharge of the check control wiring 55 of the function of wiring 80.Shown in Figure 25 A to Figure 25 C, array base palte 3 has the inspection control wiring 55 that forms one with the gate electrode 63G of on-off element 63.In addition, array base palte 3 has comparative electrode is supplied with the public wiring COM that public current potential is used to whole display pixel PX.

Shown in Figure 25 B and Figure 25 C, public wiring COM is configured in the upper strata of insulation course 100.Check control wiring 55 is configured in the lower floor of insulating barrier 100.That is, public wiring COM is configured in the layer different from check control wiring 55, and separates relative configuration of interval G of regulation with check control wiring 55.Here, particularly public wiring COM is configured to by insulating barrier 100 its at least a portion (relatively portion C A) overlapping with the end 55E of check control wiring 55.

Check control wiring 55 and relative part public wiring COM, be that end 55E forms the public wiring of Width COM and wants wide rectangle.Public wiring COM is playing function as the discharge leader with the relative portion C A of check control wiring 55.This relative portion C A has a plurality of triangle coign portion C, and the part that comprises each summit T of jut C is overlapping with the end 55E that detects with control wiring 55.That is, the end 55E of check control wiring 55 disposes across predetermined distance G relatively with the relative portion C A of public wiring COM.At this moment, the predetermined distance G across the thickness that is equivalent to insulation course 100 is relative in fact with end 55 for the summit T of the coign portion C that comprises among the discharge leader CA.

According to such formation, can utilize the discharge with public wiring COM, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.At this moment, because the summit T of the public wiring COM of the shape of easy concentrated electric field disposes so that beeline is relative with end 55E, therefore near the T of summit, guide easily and discharge.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

" concrete example 4 " conductive layer and global semaphore line

Above-mentioned display unit has outside the unit area in each unit area with mother substrate supplies with the global semaphore line CSL that global semaphore is used.Below the above-mentioned conductive layer 90 of explanation is situations of global semaphore line CSL.In this case, check with connecting up and 80 draw outside the unit area from each unit area.For example such as Figure 26 and shown in Figure 27, global semaphore line CSL separates relative configuration the in interval of regulation with wiring 80 with the inspection of drawing from each unit area C outside the unit area.In example shown in Figure 26, global semaphore line CSL has component CSLB, and this component CSLB is relative with the interval that wiring 80 separates regulation with inspection.In addition, in example shown in Figure 27, the terminal part CSLE of global semaphore line CSL is relative with the interval that wiring 80 separates regulation with inspection.

This global semaphore line CSL is that guiding checks the conductive layer that discharges with the electric charge of concentrating in the wiring 80, even be that hypothesis produces discharge (perhaps the result as discharge produces short circuit or broken string) and also do not produce the conductive layer of any impact in the display panels of finishing.That is, global semaphore line CSL is not retained on the display panels 1 when being divided into each unit area from mother substrate.By such conductive layer being used as global semaphore line CSL, even for example check with wiring 80 short circuits also can on ready-made display panels, to display quality any impact not arranged.

Global semaphore CSL and inspection are the distances that can guide discharge with the interval G of the regulation between the wiring 80, preferably as far as possible little, if but both short circuits (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

According to such formation, can utilize the discharge with global semaphore line CSL, will check the charge discharging resisting that gathers on 80 with connecting up.By like this, can prevent from advance checking undesirable short circuit of causing with the undesirable discharge that produces between wiring 80 and adjacent other conductive layer and because of this discharge and the generation of broken string.

Thereby, before flexible printed circuit board FPC and driving IC chip 11 are installed, particularly the examination phase of checking for the relevant quality that is divided into the effective display part 6 before the single display panels from mother substrate, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 7)

In present embodiment 7, illustrate to utilize to play as the global semaphore line CSL of the function of conductive layer 90 and playing as the configuration example that checks with the end 55E guiding discharge of the check control wiring 55 of the function of wiring 80.Shown in Figure 28 A to Figure 28 c, the 1st mother substrate M1 of substrate for array is at each unit area C1, C2 ... in, have inspection unit 40.Inspection unit 40 has the gate electrode 63G shape all-in-one-piece check control wiring 55 with switch element 63.This check control wiring 55 is drawn to the outside of unit area C via the connection pad PD of the pad portion PP in the C of unit area.In addition, the 1st mother substrate M1 has in the outside of unit area C to each unit area C1, C2 ... supply with the global semaphore line CSL that global semaphore is used.

In such formation, the end 55E that is configured in the check control wiring 55 outside the unit area is relative with the interval that global semaphore line CSL separates regulation.In the example shown in Figure 28 A to Figure 28 C, end 55E is relative with the component CSLB of global semaphore line CSL.That is, shown in Figure 28 B and Figure 28 C, component CSLB is configured in the upper strata of insulation course 100.Check control wiring 55 is configured in the lower floor of insulating barrier 100.That is, component CSLB is configured in the layer different from check control wiring 55, and separates relative configuration of interval G of regulation with check control wiring 55.Here, particularly component CSLB is configured to by insulation course 100 its at least a portion (portion C SLA relatively) overlapping with the end 55E of control wiring 55 with inspection.

Check control wiring 55 and relative part component CSLB, be that end 55E forms Width component CSLB and wants wide rectangle.Component CSLB and relative portion C SLA check control wiring 55 play the function as the discharge leader.This relative portion C SLA has a plurality of triangle coign portion C, and the part that comprises each summit T of jut C is overlapping with the end 55E that detects with control wiring 55.That is, the end 55E of check control wiring 55 disposes across predetermined distance G relatively with the relative portion C SLA of component CSLB.At this moment, the predetermined distance G across the thickness that is equivalent to insulation course 100 is relative in fact with end 55 for the summit T of the coign portion C that comprises among the relative portion C SLA.

According to such formation, can utilize the discharge with component CSLB, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.At this moment, because the summit T of the component CSLB of the shape of easily concentrated electric field disposes near the therefore easily guiding discharge T of summit so that beeline is relative with end 55E.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

In the above-described embodiment, what illustrate is to dispose, lead mutually the configuration example that detects with the discharge of control wiring with checking with the end of control wiring is relative with the global semaphore line, but the end of relative configuration with common signal line also can be with grade any position of distribution of the branching portion of the branch of part midway that connects up from inspection.

" concrete example 5 " conductive layer and coupling part

Above-mentioned display device has the coupling part CN that connects public wiring COM and comparative electrode 9.Below the above-mentioned conductive layer 90 of explanation is situations of coupling part CN.

That is, shown in Figure 29 A and Figure 29 b, array base palte 3 has in outer peripheral portion 10 supplies with the public wiring COM that public current potential is used.The part of this public wiring COM, the electrode part COME that for example forms in the end of public wiring COM expose from insulation course 100.Feed pad CP is connected with the exposed portions serve (for example electrode part COME) of public wiring COM.Connecting elements CX is the pasty state electroconductive member that is configured on the feed pad CP, is connected with comparative electrode 9 when array base palte 3 is pasted with relative substrate 4, thereby feed pad CP is connected with comparative electrode 9.

That is, in the example shown in Figure 29 A and Figure 29 B, electrode part COME, feed pad CP and connecting elements CX constitute coupling part CN.This coupling part CN is configured between public wiring COM and the comparative electrode 9, from public wiring COM comparative electrode 9 is supplied with public current potential.

Therefore, for example as Figure 30 and shown in Figure 31, coupling part CN with check with 80 relative configurations the in interval that separate regulation of connecting up.In example shown in Figure 30, the feed pad CP of formation coupling part CN has the size greater than the electrode part COME of public wiring COM, and this feed pad CP is relative with the interval that wiring 80 separates regulation with inspection.In addition, in example shown in Figure 31, the electrode part COME of the public wiring COM of formation coupling part CN has the size greater than feed pad CP, and this electrode part COME is relative with the interval that wiring 80 separates regulation with inspection.

This coupling part CN is that guiding checks the conductive layer that discharges with the electric charge of concentrating in the wiring 80, even be that hypothesis produces discharge and also do not produce the conductive layer of any impact in the display panels of finishing.That is in the display panels that, coupling part CN finishes comparative electrode 9 is supplied with the conductive member that public current potential is used to whole display pixel PX after connecting flexible printed circuit board FPC and driving IC chip etc.Therefore, be preferably in coupling part CN as the result who discharges and do not produce short circuit or broken string, if but can suppress to be small-scale discharge, reach not produce short circuit or broken string and release and check degree with the electric charge of wiring 80, then can utilize the connecting portion portion C N guiding of discharging to use.In a word, so-called coupling part CN can be arbitrary part of electrode part COME or feed pad CP.

Coupling part CN and inspection are the distances that can guide discharge with the interval G of the regulation between the wiring 80, preferably as far as possible little, if but both short circuits (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

According to such formation, can utilize the discharge with coupling part CN, will check the charge discharging resisting that gathers on 80 with connecting up.By like this, can prevent in advance and and check undesirable discharge of producing between 80 adjacent its these conductive layers with connecting up and undesirable short circuit of causing because of this discharge and the generation of broken string.

Thereby, in the examination phase of before flexible printed circuit board FPC and driving IC chip 11 are installed, the relevant quality of effective display part 6 being checked, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 8)

In this present embodiment 8, illustrate to utilize and play as the coupling part CN of the function of conductive layer 90 in the configuration example that plays as the end 55E guiding discharge of the check control wiring 55 of the function that checks wiring 80.Shown in Figure 32 A and Figure 32 C, array base palte 3 has inspection unit 40 in the 10A of extension.Inspection unit 40 has the gate electrode 63G shape all-in-one-piece check control wiring 55 with switch element 63.In addition, array base palte 3 has comparative electrode is supplied with the public wiring COM that public current potential is used to whole display pixel PX.This public wiring COM is connected with coupling part CN in the position relative with comparative electrode.

In such formation, check with the end 55E of control wiring 55 relative with the interval that coupling part CN separates regulation.

That is, shown in Figure 32 B and Figure 32 C, public wiring COM is configured in the outer peripheral portion 10 of array base palte 3.Electrode part COME and public wiring COM separate, and form independent island.These public wiring COM and electrode part COME are configured in the lower floor of insulation course 100, and their part is exposed from insulation course 100.Feed pad CP is configured in the upper strata of insulation course 100.This feed pad CP is electrically connected with public wiring COM and electrode part COME by the contact hole that runs through insulating barrier 100.In addition, feed pad CP forms in fact the size less than electrode part COME.

Check control wiring 55 is configured in the upper strata of insulating barrier 100.That is, electrode part COME is configured in the layer different from check control wiring 55, and separates relative configuration of interval G of regulation with check control wiring 55.Here, particularly electrode part COME is configured to by insulating barrier 100 its at least a portion (relatively portion C AN) overlapping with the end 55E of check control wiring 55.

Check control wiring 55 and relative part electrode part COME, be that end 55E forms Width electrode part COME and wants wide rectangle.Electrode part COME with the relative portion C AN of check control wiring 55 play as the discharge leader function.Portion C NA has a plurality of triangle coign portion C, and the part that comprises each summit T of jut C is overlapping with the end 55E that detects with control wiring 55.That is, the end 55E of check control wiring 55 disposes across predetermined distance G relatively with the relative portion C NA of electrode part COME.At this moment, the predetermined distance G across the thickness that is equivalent to insulation course 100 is relative in fact with end 55 for the summit T of the coign portion C that comprises among the relative portion C NA.

According to such formation, can utilize the discharge with electrode part COME, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.At this moment, because the summit T of the electrode part COME of the shape of easily concentrated electric field disposes near the therefore easily guiding discharge T of summit so that beeline is relative with end 55E.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

" concrete example 6 " conductive layer and alignment mark

Above-mentioned display device have parts are installed to have effective display part 6 and check with 80 the display panel of connecting up on the time position alignment of display panel and parts is used alignment mark AMP.In addition, above-mentioned display device has with mother substrate and is configured in the alignment mark AMM that simultaneously display device is used with the position alignment of mother substrate outside the unit area.Below the above-mentioned conductive layer 90 of explanation is situations of alignment mark AMP or AMM.

For example as shown in figure 33, in display panels 1, alignment mark AMP with check with 80 relative configurations the in interval that separate regulation of connecting up.In addition, in display unit with in the mother substrate, in the 1st mother substrate M1 as shown in figure 34, alignment mark AMM in the outside of unit area C and the inspection of drawing from each unit area C with 80 relative configurations the in interval that separate regulation of connecting up.

These alignment marks AMP and AMM guide the electric charge that checks with concentrating in the wiring 80 to put the conductive layer of legendary small dragon with horns, suppose generation discharge (perhaps the result as discharge produces short circuit or broken string) and also do not produce the conductive layer of any impact in the display panels of finishing even be.That is, alignment mark AMP is the conductive layer of not importing in the display panels of finishing after connecting flexible printed circuit board FPC and driving IC chip etc. the signal that shows usefulness.In addition, alignment mark AMM be when display device is divided into each display panels 1 with mother substrate, be not retained in the conductive layer the display panels 1.

By such alignment mark AMP and AMM being used as the conductive layer of discharge guiding usefulness, though for example with check with wiring 80 short circuits, but in the display panels of finishing, display quality is not produced any impact yet.

Alignment mark AMP or AMM and inspection are the distances that can guide discharge with the interval G of the regulation between the wiring 80, preferably as far as possible little, if but both short circuits (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

According to such formation, can utilize the discharge with alignment mark AMP or AMM, will check the charge discharging resisting that gathers on 80 with connecting up.By like this, can prevent from advance checking undesirable short circuit of causing with the undesirable discharge that produces between wiring 80 and adjacent other conductive layer and because of this discharge and the generation of broken string.

Thereby, before flexible printed circuit board FPC and driving IC chip 11 are installed, particularly the examination phase of checking for the relevant quality that is divided into the effective display part 6 before the single display panels from mother substrate, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 9)

In present embodiment 9, illustrate to utilize to play as the alignment mark AMP of the function of conductive layer 90 and playing as the configuration example that detects with the end 55E guiding discharge of the check control wiring 55 of the function of wiring 80.Shown in Figure 35 A to Figure 35 C, the extension 10A of array base palte 3 has inspection unit 40 and alignment mark AMP.Inspection unit 40 has the gate electrode 63G shape all-in-one-piece check control wiring 55 with switch element 63.In such formation, the end 55E of check control wiring 55 is relative across the interval of regulation with alignment mark AMP.

That is, shown in Figure 35 B and Figure 35 C, alignment mark AMP is configured in the upper strata of insulation course 100.Check control wiring 55 is configured in the lower floor of insulating barrier 100.That is, alignment mark AMP is configured in the layer different from check control wiring 55, and separates relative configuration of interval G of regulation with check control wiring 55.Here, particularly alignment mark AMP is configured to by insulating barrier 100 its at least a portion (relatively part MA) overlapping with the end 55E of check control wiring 55.

Alignment mark AMP and relative part MA check control wiring 55 form Width check control wiring 55 and want wide rectangle.Check control wiring 55 and relative part alignment mark AMP, be that end 55E plays the function as the discharge leader.This end 55E has a plurality of triangle coign portion C, and the part that comprises each summit T of jut C is overlapping with the relative part MA of alignment mark AMP.That is, the end 55E of check control wiring 55 disposes across predetermined distance G relatively with the relative part MA of alignment mark AMP.At this moment, the predetermined distance G across the thickness that is equivalent to insulation course 100 is relative in fact with relative part MA for the summit T of the coign portion C that comprises among the 55E of end.

According to such formation, can utilize the discharge with alignment mark AMP, will check that the end 55E with control wiring 55 goes up the charge discharging resisting of concentrating.At this moment, because the summit T of the end 55E of the shape of easily concentrated electric field disposes near the therefore easily guiding discharge T of summit so that bee line is relative with alignment mark AMP.By like this, can prevent in advance near the end of check control wiring 55, produce undesirable discharge and undesirable short circuit of causing because of this discharge and the generation of broken string.

In the above-described embodiment, what illustrate is to dispose, guide the configuration example of checking with the discharge of control wiring with checking with the end of control wiring is relative with alignment mark, but the end of relative configuration with alignment mark also can be any position that grades and connect up with the branching portion of the branch of part midway that connects up from inspection.

" concrete example 7 " conductive layer and other inspection are with connecting up

In above-mentioned display device, extremely shown in Figure 38 as Figure 36, when effective display part 6 is checked in many inspections in wiring, comprise having and supply with the 1st and check that the 1st of signal is checked and check wiring portion 81 and have the 2nd of input pad 82B with the 1st of wiring 81W and check wiring portion 82 that input pad 82 is used for checking different the 2nd the checking that the 2nd of signal is checked with wiring 82W and with the 2nd and check that signal is input to the 2nd inspection 82W that connects up of signal to supplying with the 1st.Below the above-mentioned conductive layer 90 of explanation is situations of the 1st inspection wiring portion 81.That is, the 2nd inspection of the 2nd inspection wiring portion 82 checks that with at least one place and the 1st of the 82c of part midway of the end 82 of wiring 82W wiring portion 81 separates the identical configuration in interval of the regulation more approaching than other position of the 2nd inspection wiring portion 82.

In example shown in Figure 36, the 2nd of the 2nd inspection wiring portion 82 checks that the end 82E with wiring 82W checks that near the 1st wiring portion 81 disposes.In the example as shown in figure 37, the 2nd checks that the input pad 82b of wiring portion 82 checks wiring portion 81 configurations near the 1st.In example shown in Figure 38, the 2nd checks that the 2nd of wiring portion 82 checks that the 82C of part midway (being the component that checks with wiring 82W from the 2nd among the figure) with wiring 82W checks wiring portion 81 configurations by the nearly the 1st.In addition, the so-called the 2nd checks that wiring portion 82 and the 1st detects wiring portion 81 near relative configurations, is equivalent to the 2nd part of checking wiring portion 82 near the 1st checking the part of wiring portion 81, promptly the 1st checking that the 1st inspection that wiring portion 81 has is with the end 81E of 81W and certain a part of state of part 81c and input pad 81b from the 81W input checking signal that connects up to the 1st inspection that use with midway thereof of connecting up.

Promptly.In Figure 36, as with dashed lines surrounds, be illustrated as the 2nd and check the end 82E that uses wiring 82W, but also can be that the 2nd of the 2nd inspection wiring portion 82 checks that the end 82E that uses wiring 82W checks the 81C of the part midway configuration of using wiring 81W near importing pad 81B or the 1st near the state of the 1st inspection with the end 81E of wiring 81W.

Equally, in Figure 37, as with dashed lines surrounds, be illustrated as the 2nd and check that the input pad 82B of wiring portion 82 checks the state of the input pad 81B of wiring portion 81 near the 1st, check that near the 1st end 81E or the 1st with wiring 81W checks the 81C of the part midway configuration with wiring 81W but also can be the 2nd input pad 82B that checks wiring portion 82.

Equally, in Figure 38, surround like that as with dashed lines, be illustrated as the 2nd state of checking with the 81C of part midway of wiring 82W, but also can be the 2nd to check that the 82C of part midway of routing cell 82 checks that near the 1st end 81E or input pad 81B with wiring 81W dispose.

These check that the structure with wiring is that guiding is checked with wiring and gone up the structure that the electric charge concentrated discharges, and are checking that producing the inspection that does not also produce any influence in the display panels that discharges and finish each other with wiring uses and connect up even may be selected to be hypothesis.That is, the inspection of selecting here is at examination phase with wiring or is connecting the conductive member that the mutual different signal of supply is used in the display panels of finishing after flexible printed circuit board FPC and the driving IC chip etc.Therefore, preferably do not produce inspection wiring short circuit and the inspection broken string that connects up each other as the result that discharges, if but can suppress to be small-scale discharge, reach the degree that the electric charge of wiring is used in short circuit or broken string and a certain inspection of releasing that do not produce, by also utilizing other to check with the guiding of discharging of connecting up.

As an example, be equivalent to suppose that the 2nd checks that wiring portion 82 has the inspection that electric charge gathers easily and checks with wiring with control wiring 55 and public wiring COM etc., the 1st checks that signal wire inspection that wiring portion 81 has guiding discharge usefulness checks with driving wiring the 52, the 2nd and check with driving wiring 53 etc. and check with situation about connecting up with driving wiring the 51, the 1st.In addition, when the 2nd checked that wiring portion 82 has check control wiring 55, the 1st checked that wiring portion 81 also can have public wiring COM.

The 1st checks that the interval G of the regulation between wiring portion 81 and the 2nd inspection wiring portion 82 is the distance that can guide discharge, preferably as far as possible little, but if both are short circuit (being spaced apart zero), then resistance is too small, can not consume the energy of electrostatic breakdown, therefore preferably both are in the distance of electric insulating state.

According to such formation, can utilize the discharge that checks wiring portion 81 with the 1st, check the charge discharging resisting that gathers on the wiring portion 82 with the 2nd.By like this, can prevent in advance and and the 2nd check undesirable discharge of producing between other adjacent conductive layer of wiring portion 82 and undesirable short circuit of causing because of this discharge and the generation of broken string.

Thereby, in the examination phase of before flexible printed circuit board FPC and driving IC chip 11 are installed, the relevant quality of effective display part 6 being checked, the enough inspection units 40 of energy are stably checked the wiring condition of poor of various wirings, can prevent simultaneously that the display panels of finishing from producing defective, can suppress the reduction of fabrication yield.

(embodiment 10)

In this embodiment 10, illustrate to utilize to play as the 1st of the function of conductive layer 90 to check that wiring portion 81 checks that the check control wiring 55 with the function of wiring 82W guides the configuration example that causes discharge playing as the 2nd.Shown in Figure 39 A to Figure 39 C, array base palte 3 has the 1st at outer peripheral portion 10 and detects wiring portion 81 and the 2nd inspection wiring portion 82.The 1st inspection wiring portion 81 has public wiring (the 1st checks with wiring) COM and imports the input pad COMP of the 1st inspection signal (public electric potential signal) usefulness to this public wiring COM.The 2nd check wiring portion 82 have with inspection unit 40 in the gate electrode 63G shape all-in-one-piece check control wiring (the 2nd checks with wiring) 55 of switch element 63 and the input pad 75 of using to this check control wiring 55 inputs the 2nd inspection signal.Public wiring COM is connected with the connection pads CP1 of pad portion PP.

In such formation, the 2nd checks that the input pad 75 of wiring portion 82 checks wiring portion 81 relative configurations across the interval and the 1st of the regulation more approaching than other position of the 2nd inspection wiring portion 82.

That is, shown in Figure 39 B and Figure 39 C, check control wiring 55 is configured in the lower floor of insulating barrier 100.Input pad 75 is configured in the upper strata of insulating barrier 100, is electrically connected with check control wiring 55 by the contact hole that runs through insulating barrier 100.Public wiring COM is configured in the lower floor of insulation course 100.Input pad COMP is configured in the upper strata of insulation course 100, is electrically connected with public wiring COM by the contact hole that runs through insulation course 100.

The 2nd check wiring portion 82 input pad 75 and the 1st relative part that checks wiring portion 81, namely the relative part 82A with input pad COMP is rectangle.The 1st checks the checking the relative part of wiring portion 82 with the 2nd, namely play function as the discharge leader with the relative part 81A of input pad 75 of input pad COMP of wiring portion 81.This relative part 81A has a plurality of triangle coign portion C, and each summit T of coign portion C is near 75 configurations of input pad.

That is, in present embodiment 10, the 2nd input pad 75 that checks wiring portion 82 is configured in the input pad COMP same layer that checks wiring portion 81 with the 1st, and separates relative configuration of interval G of regulation with input pad COMP.

According to such formation, can utilize the discharge that checks wiring portion 81 with the 1st, check the charge discharging resisting of concentrating on the wiring portion 82 with the 2nd.At this moment, owing to concentrate the summit T and the 2nd of the 1st inspection wiring portion 81 (being input pad COMP) of the shape of electric field to check that wiring portion 81 (being input pad 75) disposes near the therefore easy guiding discharge T of summit so that bee line is relative here easily here.By like this, can prevent in advance undesirable discharge of producing in check control wiring 55 and undesirable short circuit of causing because of this discharge and the generation of broken string.

As previously discussed, the display device relevant according to this example, in having the array base palte of inspection unit, the relative conductive layer that disposes in position by concentrating easily with electric charge in checking with wiring can guide discharge.Thereby, can prevent from checking the discharge popularization that upward causes because of charge concentration with wiring.Therefore, can suppress and and check the undesired discharging that produces between other approaching conductive layer with connecting up and the generation of the wiring unfavorable condition that causes because of this discharge.

In addition, the display device mother substrate relevant according to this example, by inspection that the inspection unit in each unit area is had with drawing outside the cloth alignment unit area, the relative conductive layers such as global semaphore line or alignment mark that dispose in position with this inspection is concentrated easily with electric charge in the wiring can guide discharge.Thereby, can prevent from checking the discharge popularization that upward causes because of charge concentration with wiring.Therefore, can suppress and and check the undesired discharging that produces between other approaching conductive layer with connecting up and the generation of the wiring unfavorable condition that causes because of this discharge.

So, the examination phase before driving IC chip or flexible printed circuit board etc. are installed or before being divided into a plurality of display panels from mother substrate, can stably the relevant quality of effective display unit be checked by enough inspection units.Thereby the bad display panels that can prevent from advance to connect up flows to later process.In addition, can prevent the display panels generation defective finished.By like this, can suppress the reduction of fabrication yield.

In addition, the present invention is not limited to the intact form of above-mentioned example, its implementation phase in do not exceed and can change the inscape form in the scope of its aim and specialize.In addition, carry out suitable combination by a plurality of inscapes that above-mentioned example is disclosed, can form various inventions.For example, can from the whole inscapes shown in the example, delete several inscapes.The inscape that also can will be referred to different examples is even carried out appropriate combination.

For example, in above-mentioned example, what narrate is that sweep signal is supplied with and the display panels of formation from the both sides of display panels, but difference is counted in the wiring that also can supply with sweep signal in the 1st driver element and the 2nd driver element respectively, can there be the 1st driver element or the 2nd driver element yet, be to utilize single scanning line driving unit to supply with the layout of sweep signal to each sweep trace, otherwise or also can scanning line driving unit also have the 3rd driver element and the 4th driver element and constitute from one-sided.

In addition, display device of the present invention is not limited to above-mentioned liquid crystal indicator, also can be to have active illuminating element other display device such as organic electroluminescence display device and method of manufacturing same as the display panel of display element.

Claims (24)

1. a display device is characterized in that having

The effective display part that constitutes by a plurality of display pixels;

When checking described effective display part, supply with and check with the inspection of signal with wiring; And

Have and separate with wiring with described inspection that the interval of regulation is relative to dispose and guide the conductive layer of described inspection with the discharge leader of the charge discharge that gathers on connecting up.

2. display device as claimed in claim 1 is characterized in that,

Described conductive layer is configured in and described inspection wiring same layer.

3. display device as claimed in claim 1 is characterized in that,

Described conductive layer is configured in intervenient, different from the wiring of the described inspection usefulness layer of insulating barrier.

4. display device as claimed in claim 3 is characterized in that,

At least a portion of described conductive layer is by described insulating barrier and described inspection wiring overlay configuration.

5. display device as claimed in claim 1 is characterized in that,

Described discharge leader has the coign part of giving prominence to wiring to described inspection.

6. display device as claimed in claim 1 is characterized in that,

Described inspection has to the outstanding coign part of described discharge leader with the relative part relative with described discharge leader of wiring.

7. display device as claimed in claim 1 is characterized in that,

Described inspection is in described effective display part with wiring, supplies with the wiring of public current potential to a plurality of display pixels.

8. display device as claimed in claim 1 is characterized in that,

Described discharge leader and described inspection separate relative configuration the in interval of regulation with the end of wiring.

9. display device as claimed in claim 1 is characterized in that,

Also have the wiring that is connected and outside described effective display part, draws with described effective display part,

Described inspection comprises by switch element with wiring and is connected with described wiring, supplies with when checking described effective display unit simultaneously and check with the inspection that drives signal and connect up with driving; And the inspection of when checking described effective display part, supplying with the Push And Release of the described switch element of the control check control wiring of control signal,

Described conductive layer and described check control wiring separate relative configuration the in interval of regulation.

10. display device as claimed in claim 9 is characterized in that,

Described wiring is at least a of sweep trace and signal wire.

11. display device as claimed in claim 9 is characterized in that,

Described switch element is thin film transistor (TFT), and its grid is connected with described check control wiring.

12. display device as claimed in claim 1 is characterized in that,

Described conductive layer is the conductive member that is the island configuration.

13. display device as claimed in claim 1 is characterized in that,

Described conductive layer is to supply with wiring lines.

14. display device as claimed in claim 1 is characterized in that,

By in the display panels that keeps liquid crystal layer to consist of between array base palte and the relative substrate, has described effective display part.

15. display device as claimed in claim 14 is characterized in that,

Described inspection is configured on the extension of the array base palte that extends laterally from the end of relative substrate with wiring.

16. display device as claimed in claim 4 is characterized in that,

The described inspection regional corresponding configuration of connecting up with configuration driven IC chip.

17. display device as claimed in claim 1 is characterized in that,

Also comprise the pad portion with connection pads, described connection pads is used for connecting has flexible printed circuit board from the driving circuit of drive signal to described effective display part or the driving IC chip of supplying with,

Described conductive layer is described connection pads or the connecting wiring that is connected with described connection pads.

18. display device as claimed in claim 1 is characterized in that,

The empty graphic that also has the floating dummy status of electricity,

Described conductive layer is described empty graphic.

19. display device as claimed in claim 1 is characterized in that,

Also have public wiring from public current potential to a plurality of display pixels that in described effective display part, supply with,

Described conductive layer is described public wiring.

20. display device as claimed in claim 19 is characterized in that,

Have by having and keep liquid crystal layer to constitute the display panels of described effective display part between array of pixel electrodes substrate and the relative substrate with comparative electrode relative with a plurality of described pixel electrode at each display pixel,

Also have the coupling part that connects described public wiring and described comparative electrode,

Described conductive layer is described coupling part.

21. display device as claimed in claim 1 is characterized in that,

Also have to having the necessary alignment mark of position alignment of described effective display part and described inspection described display floater and described parts when with the display floater of wiring parts being installed,

Described conductive layer is described alignment mark.

22. display device as claimed in claim 1 is characterized in that,

Described inspection with wiring comprise supply with when checking described effective display part the 1st check the 1st of signal check with wiring and supply and the described the 1st check signal different the 2nd check that the 2nd of signal checks with connecting up,

Also comprise and have the described the 1st and check and to check wiring portion and to have the described the 2nd with the 1st of wiring and check with wiring and to the described the 2nd and check the 2nd inspection wiring portion of importing the input pad that the 2nd inspection signal uses with wiring,

The 2nd checks that the 2nd of wiring portion checks with the end of wiring, described input pad and described the 2nd inspection at least one part of part midway with wiring, separate the interval that checks the regulation that other position of wiring portion is more approaching than the described the 2nd, check that wiring portion is relative and dispose with the described the 1st.

23. display device as claimed in claim 4 is characterized in that,

Described inspection has the different a plurality of coign parts of length with the relative part relative with described discharge leader of wiring and at least one side of described discharge leader.

24. display device as claimed in claim 1 is characterized in that,

Described inspection is configured in the outer peripheral portion that is positioned at the outside, effective display part with wiring.

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