WO2010010750A1 - アクティブマトリクス基板、表示装置、アクティブマトリクス基板の検査方法、および表示装置の検査方法 - Google Patents
アクティブマトリクス基板、表示装置、アクティブマトリクス基板の検査方法、および表示装置の検査方法 Download PDFInfo
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- WO2010010750A1 WO2010010750A1 PCT/JP2009/058777 JP2009058777W WO2010010750A1 WO 2010010750 A1 WO2010010750 A1 WO 2010010750A1 JP 2009058777 W JP2009058777 W JP 2009058777W WO 2010010750 A1 WO2010010750 A1 WO 2010010750A1
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- inspection
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Definitions
- the present invention has two or more layers, and a plurality of first lines respectively connecting a plurality of first wirings formed in parallel to each other in the display area and a plurality of first terminals arranged in the terminal arrangement area.
- the present invention relates to an active matrix substrate, a display device, an active matrix substrate inspection method, and a display device inspection method in which lead wirings are formed in respective layers.
- liquid crystal panels have been widely used in various electronic devices such as mobile phones, PDAs, car navigation systems, and personal computers.
- a liquid crystal panel is thin and lightweight, and has an advantage of low power consumption.
- COG Chip On Glass
- a driver is directly mounted on one substrate (active matrix substrate) of a pair of substrates facing each other with a liquid crystal material interposed therebetween.
- Known for example, see JP-A-9-329796 and JP-A-8-328033.
- liquid crystal panels used for small-sized electronic devices such as mobile phones and PDAs have a QQVGA with a vertical and horizontal number of pixels of a display screen of 160 ⁇ 120, a QCIF of 176 ⁇ 144 to a QVGA of 320 ⁇ 240, Is moving to a 640x480 VGA. Accordingly, the number of wirings and terminals to be formed on the active matrix substrate constituting the liquid crystal panel increases. However, in recent years, the size of the active matrix substrate cannot be increased in order to meet the demand for downsizing and higher definition of the liquid crystal panel.
- an active matrix in which a plurality of lead lines respectively connecting a plurality of gate lines formed in the display area and a plurality of gate terminals arranged in the terminal arrangement area are formed in two or more layers (multilayers).
- Substrates are known (see, for example, Japanese Patent Application Laid-Open Nos. 2004-53702 and 2005-91962). Specifically, a predetermined number of lead wires among a plurality of lead wires are formed in the same layer (first layer) as the layer in which the gate wires are formed, and the remaining lead wires are formed with the gate wires. It is formed in a layer (second layer) different from the layer. An insulating material is interposed between the lead wiring formed in the first layer and the lead wiring formed in the second layer.
- Short circuit (leakage) is unlikely to occur between the lead wires formed in the layer.
- a short circuit may occur between adjacent lead lines formed in the same layer due to dust in a photolithography process such as in manufacturing an active matrix substrate, a film residue during etching, or the like.
- downsizing and high definition of the liquid crystal panel are desired, and the interval between wirings is becoming increasingly narrow in recent years. Therefore, between adjacent lead-out wirings formed in the same layer. Short circuits are also likely to occur.
- the short-circuit between adjacent lead-out lines formed in the same layer is caused by a plurality of short-circuits between the lead-out lines, although the inspection of the short-circuit between the lead-out lines has become important.
- the detection mechanism for each of the layers has not been established. Specifically, in a conventional active matrix substrate having two or more layers, the same inspection signal is input from the same inspection wiring to each of the adjacent extraction wirings formed in the same layer. Although the disconnection of the wiring could be detected, the short circuit between the adjacent lead wirings formed in the same layer could not be detected.
- the present invention has been made in view of the above-described problems, and its purpose is to short-circuit adjacent adjacent wirings formed in the same layer when the wiring is formed in each of a plurality of layers.
- An object of the present invention is to provide an active matrix substrate, a display device, an inspection method for an active matrix substrate, and an inspection method for a display device that can be reliably detected with a simple configuration.
- an active matrix substrate includes a plurality of first wirings formed in parallel to each other in a display region, and a plurality of first wirings in the display region so as to intersect with each other.
- the plurality of second wirings formed, the plurality of first terminals arranged in the terminal arrangement area, the plurality of second terminals arranged in the terminal arrangement area, the plurality of first wirings, and the plurality of first terminals In the active matrix substrate, comprising: a plurality of first lead wires that respectively connect one terminal; and a plurality of second lead wires that respectively connect the plurality of second wires and the plurality of second terminals.
- the first lead wire includes a plurality of third lead wires and a plurality of fourth lead wires, and the third lead wire is formed in the same layer as the layer on which the first wire is formed,
- the fourth withdrawal At least a portion of the first wiring is formed in a layer different from the layer in which the first wiring is formed, and the third lead-out wiring in the frame wiring area other than the display area and the terminal arrangement area.
- the fourth lead wirings are alternately formed for each one, and the active matrix substrate is connected to each of the plurality of first terminals to which the plurality of third lead wirings are connected.
- First connection wiring a plurality of second connection wirings connected to each of the plurality of first terminals to which each of the plurality of fourth lead wirings is connected, and the two first connection wirings adjacent to each other
- a plurality of bundle wires that bundle the second connection wires into one, a first common wire that commonly connects bundle wires that are not adjacent to each other among the plurality of bundle wires, and the first of the plurality of bundle wires.
- the active matrix substrate of the present invention when inspection signals independent from each other are input to the first common wiring and the second common wiring in an inspection process such as during manufacturing of the active matrix substrate, the bundle wiring, the first connection wiring, In addition, an inspection signal can be input to the third lead wiring and the fourth lead wiring via the second connection wiring. That is, it is possible to input independent inspection signals to adjacent third lead wires.
- the third lead wiring is a wiring formed in the same layer as the layer in which the first wiring is formed. As a result, a short circuit between adjacent third lead wires can be detected.
- the fourth lead wiring is a wiring formed in a layer different from the layer where the first wiring is formed with an insulating material in between at least a part of the fourth lead wiring. Thereby, it is possible to detect a short circuit between adjacent fourth lead wires.
- the active matrix substrate of the present invention includes a plurality of bundle wirings that bundle two adjacent first connection wirings and second connection wirings into one, and each of the plurality of bundle wirings is a first common wiring or It is an aspect connected to the second common wiring. Therefore, each of the plurality of first connection wirings and the plurality of second connection wirings is not provided with a bundle wiring, and compared with the mode in which each of the plurality of first connection wirings is directly connected to the first common wiring or the second common wiring.
- the distance can be widened, and the number of wiring layer switching portions for electrically connecting wirings formed in different layers can be reduced. That is, since the interval between wirings (between bundled wirings) can be widened, it is difficult for a short circuit to occur between the wirings. In addition, since the number of wiring layer switching units can be reduced, poor connection of the wiring layer switching units can be reduced.
- a display device includes an active matrix substrate according to the present invention.
- the display device is preferably a liquid crystal display device.
- an inspection method of an active matrix substrate or a display device is an inspection method of the above active matrix substrate or a display device including the above active matrix substrate, wherein the first common An inspection process for inspecting the third lead wiring and the fourth lead wiring by inputting independent inspection signals to the wiring and the second common wiring; and after the inspection process, the plurality of first connections A cutting step of cutting the wiring and the plurality of second connection wirings.
- the inspection signals independent from each other are input to the first common wiring and the second common wiring, so that the adjacent third lead wirings are short-circuited and adjacent to each other. A short circuit between the fourth lead wires can be detected.
- the plurality of first connection wires and the plurality of second connection wires are cut. Thereby, the plurality of first terminals to which each of the plurality of third lead wirings is connected and the plurality of first terminals to which each of the plurality of fourth lead wirings are connected are electrically disconnected.
- the active matrix substrate, the display device, and the inspection method of the active matrix substrate of the present invention when the extraction wiring is formed in each of a plurality of layers, the adjacent extraction wiring formed in the same layer The short circuit can be reliably detected with a simple configuration.
- FIG. 1 is a plan view showing a schematic configuration of a liquid crystal panel according to the first embodiment of the present invention.
- FIG. 2 is a cross-sectional view taken along the cutting line aa ′ shown in FIG.
- Figure 3 is an enlarged view of a portion of the E 1 shown in Fig.
- Figure 4 is an enlarged view of a portion of the E 2 shown in FIG.
- FIG. 5 is a plan view showing a schematic configuration of a liquid crystal panel according to a modified example.
- Figure 6 is an enlarged view of the same portion as the E 1 portion shown in FIG.
- the plurality of first terminals to which each of the plurality of third lead wires is connected and the plurality of first terminals to which each of the plurality of fourth lead wires are connected are electrically It is preferable that the plurality of first connection wirings and the plurality of second connection wirings are disconnected so as not to conduct. According to this aspect, the plurality of first terminals connected to each of the plurality of third lead wires and the plurality of first terminals connected to each of the plurality of fourth lead wires are electrically disconnected. It will be.
- a resistance element is connected to at least one of the two first connection wirings and the second connection wiring adjacent to each other.
- a resistance element is connected to each of the two first connection wirings and the second connection wirings adjacent to each other.
- the resistance element connected to the first connection wiring and the resistance element connected to the second connection wiring have substantially the same resistance value.
- the delay amount of the inspection signal to be input to the extraction wiring corresponding to the adjacent connection wiring and the first wiring corresponding to the extraction wiring in the inspection process at the time of manufacturing the active matrix substrate It can be made substantially equivalent. As a result, it is possible to detect a defect such as a case where the wiring width is minimized although the disconnection does not occur.
- each of the plurality of bundle wires is cut.
- the first terminal to which each of the plurality of third lead wires and the plurality of fourth lead wires is connected is electrically separated from the first common wire and the second common wire.
- the first wiring is a gate wiring and the second wiring is a source wiring.
- the first wiring is the gate wiring. If so, it is possible to inspect a short circuit between gate wirings having a high defect occurrence rate. For this reason, it is possible to prevent the driving circuit (driver) for the gate wiring from being mounted on the defective active matrix substrate in which the short circuit between the gate wirings occurs. Therefore, loss of member cost and work cost can be reduced.
- the gate wiring driver circuit has a simpler configuration than the source wiring driver circuit that supplies source signals (video signals) corresponding to a plurality of gradations. Therefore, for the purpose of reducing the terminal arrangement area and reducing the cost of the active matrix substrate, when the number of the first wiring is larger than the number of the second wiring, the first wiring is the gate wiring, the second wiring The wiring is preferably a source wiring.
- the first wiring is a source wiring and the second wiring is a gate wiring.
- the source wiring driver circuit (driver) needs to supply source signals (video signals) corresponding to a plurality of gradations, and therefore has a more complicated configuration than the gate wiring driver circuit. That is, the source wiring driver circuit is more expensive than the gate wiring driver circuit. For this reason, it is possible to prevent the drive circuit for the source wiring from being mounted on the defective active matrix substrate in which a short circuit between the source wirings has occurred. Therefore, loss of member cost and work cost can be reduced.
- the active matrix substrate according to the present invention may include arbitrary constituent members not shown in the drawings referred to in this specification.
- the dimension of the member in each figure does not represent the dimension of an actual structural member, the dimension ratio of each member, etc. faithfully.
- the first common wiring and the second common wiring will be described as a first inspection wiring and a second inspection wiring.
- FIG. 1 is a plan view showing a schematic configuration of a liquid crystal panel 1 according to the present embodiment.
- the liquid crystal panel 1 includes an active matrix substrate 2 and a counter substrate 3 facing the active matrix substrate 2.
- a liquid crystal material (not shown) is sandwiched between the active matrix substrate 2 and the counter substrate 3.
- the counter substrate 3 according to the present embodiment includes a color filter including R (red), G (green), and B (blue) color filters and a black matrix that prevents light leakage between these color filters.
- a layer is formed.
- a common electrode is formed on the color filter layer.
- the liquid crystal panel 1 according to the present embodiment is used for electronic devices for portable terminals such as a mobile phone, a PDA (Personal Digital Assistant), a PHS (Personal Handy-phone System), and an HHT (Hand Held Terminal). It is done.
- the liquid crystal panel 1 according to the present embodiment is also used for electronic devices such as game terminals, car navigation systems, personal computers, televisions, video cameras, and digital cameras, in addition to electronic devices for portable terminals.
- the electronic device including the liquid crystal panel 1 is an embodiment of the liquid crystal display device according to the present invention.
- the active matrix substrate 2 according to the present embodiment may be provided on a panel (display device) other than the liquid crystal panel 1, such as a field emission display, a plasma display, an organic EL display, or an inorganic EL display.
- the active matrix substrate 2 has a display area 4, a terminal arrangement area 5, and a frame wiring area 6 that is outside the display area 4 and surrounds the display area 4.
- one side of the liquid crystal panel 1 is defined as a first side S 1 (the lower side in FIG. 1), and the left and right sides across the first side S 1 are the second side S 2 and the third side S, respectively. 3 and then to the side opposite the first side S 1 and the fourth side S 4.
- the length H of the second side S 2 (third side S 3 ) of the active matrix substrate 2 is equal to the second side S 2 (third side S 3 ) of the counter substrate 3. Longer than length L. Therefore, when the active matrix substrate 2 and the counter substrate 3 are bonded to each other via a liquid crystal material (not shown), the terminal arrangement region 5 of the active matrix substrate 2 is closer to the first side S 1 than the counter substrate 3 is. Will be located.
- first gate lines 40 1 to 40 7 In the display area 4, first gate lines 40 1 to 40 7 , second gate lines 41 1 to 41 7 , and source lines 42 1 , 42 2 , 42 3 ,... 42 i are formed.
- the first gate wirings 40 1 to 40 7 have gate signal input ends 43 1 to 43 7 on one end side, respectively.
- the second gate wirings 41 1 to 41 7 have gate signal input ends 44 1 to 44 7 on the other end side, respectively.
- the source wiring 42 1, 42 2, 42 3, the ⁇ ⁇ ⁇ 42 i has an input end 45 1 of the source signal on one end side, 45 2, 45 3, ⁇ ⁇ ⁇ 45 i, respectively.
- first gate wirings 40 1 to 40 7 and seven second gate wirings 41 1 to 41 7 are illustrated.
- the number of one gate wiring and second gate wiring is actually larger than this.
- the number of the first gate wiring and the second gate wiring is arbitrary, and is not particularly limited here.
- the first gate lines 40 1 to 40 7 and the second gate lines 41 1 to 41 7 are alternately arranged in the display area 4 so that they are alternately arranged in parallel with each other. Is formed. That is, in the display area 4, the first gate wiring 40 1 , the second gate wiring 41 1 , the first gate wiring 40 2 , and the second gate wiring from the fourth side S 4 side toward the first side S 1 side. Gate wirings 40 and 41 are formed so as to be 41 2 , first gate wiring 40 3 , second gate wiring 41 3 . Source lines 42 1 , 42 2 , 42 3 ,... 42 i are formed in the display region 4 so as to intersect with the gate lines 40 and 41 and in parallel with each other.
- the source wiring 42 is formed in the display area 4 for each of RGB. That is, in the display area 4, an R source wiring 42, a G source wiring 42, and a B source wiring 42 are formed.
- the present invention is not limited to this in the case of the monochrome liquid crystal panel 1.
- a storage capacitor line (not shown) is formed in the display area 4. The storage capacitor line is formed in the display region 4 so as to be parallel to the gate lines 40 and 41.
- a switching element such as a TFT (Thin Film Transistor) or MIM (Metal Insulator Metal) (not shown) and a picture (not shown) connected to the switching element are provided at the intersection of the gate wirings 40 and 41 and the source wiring 42.
- Elementary electrodes R, G, or B are formed.
- the terminal arrangement area 5 is an area where a plurality of gate terminals 51 and a plurality of source terminals 52 are arranged in the active matrix substrate 2.
- the driver or the flexible wiring board provided with the driver is electrically connected to the gate terminal 51 and the source terminal 52 in the terminal arrangement region 5. Therefore, the gate terminal 51 is a terminal to which a gate signal can be input from the driver.
- the source terminal 52 is a terminal to which a source signal can be input from a driver.
- the driver can be connected to the terminal arrangement region 5 by a COG (Chip-On-Glass) method. Further, the flexible wiring board provided with the driver can be connected to the terminal arrangement region 5 by a TCP (Tape Carrier Package) method. Note that the connection method is not particularly limited here.
- FIG. 1 shows an example in which one driver can be arranged in the terminal arrangement area 5, the present invention is not limited to this.
- a plurality of terminal arrangement areas 5 may be provided on the active matrix substrate 2 so that a plurality of drivers can be arranged in each of the plurality of terminal arrangement areas 5.
- an input terminal 43 1-43 7 gate signal having the one end side of the first gate wirings 40 1 to 40 7, right lead wiring for the gate that connects the gate terminal 51, respectively (first extraction Wiring) 61 1 to 6 7 are formed. That is, the right lead wires 61 1 to 61 7 for gates are drawn from the gate signal input ends 43 1 to 43 7 to the third side S 3 side, and are formed in the frame wiring region 6 along the third side S 3. , And connected to the gate terminal 51.
- the gate right first lead wirings 61 1 , 61 3 , 61 5 , and 6 17 are lead wirings formed in the same layer as the gate wirings 40 and 41 are formed.
- the layer in which the gate wirings 40 and 41 are formed is referred to as a “first layer”.
- the gate right second lead wirings 61 2 , 61 4 and 61 6 are layers in which the gate wirings 40 and 41 are formed in at least a part of the gate right second lead wirings 61 2 , 61 4 and 61 6. This is a lead wiring formed in a different layer with the (first layer) and insulating material in between.
- a layer different from the layer in which the gate wirings 40 and 41 are formed is referred to as a “second layer”. That is, the source wiring 42 is formed in the second layer.
- the wiring between the wiring layer 62 6 and the wiring layer first switching unit 62 2 , 62 4 , 62 6 and the wiring layer second switching unit 63 2 , 63 4 , 63 6 is formed in the first layer.
- the wiring is formed in the second layer, and the wiring between the wiring layer second switching portions 63 2 , 63 4 , and 63 6 and the gate terminal 51 is formed in the first layer. That is, in each of the wiring layer first switching units 62 2 , 62 4 , 62 6 and the wiring layer second switching units 63 2 , 63 4 , 63 6 , the wiring formed in the first layer and the second layer are formed. Wiring is electrically connected.
- the wiring formed in the first layer and the wiring formed in the second layer may be directly connected through a contact hole formed in an insulating material, You may make it electrically connect the wiring formed in the 1st layer, and the wiring formed in the 2nd layer through the electrode formed in another layer.
- various arbitrary methods can be used as an electrical connection method, and the method is not particularly limited here.
- the positions of the wiring layer first switching units 62 2 , 62 4 , 62 6 and the wiring layer second switching units 63 2 , 63 4 , 63 6 are not limited to the positions shown in FIG. is there.
- FIG. 2 is a cross-sectional view taken along the cutting line aa ′ shown in FIG.
- the insulating film (insulating material) 7 is, first lead wire 61 right gate 1, 61 3, 61 5, 61 7 so as to cover, are formed on the active matrix substrate 2.
- gate second right lead wires 61 2 , 61 4 , and 6 6 are formed as second layers.
- the protective film 8, gate right second lead-out lines 61 2, 61 4, 61 6 so as to cover, are formed on the insulating film 7. That is, the gate right first lead-out lines 61 1, 61 3, 61 5, 61 7, between the gate right second lead-out lines 61 2, 61 4, 61 6, the insulating film 7 is interposed Yes.
- the first lead-out lines right gate 61 1, 61 3, 61 5, 61 7 are formed in the first layer, gate right second lead-out lines 61 2, 61 4, 61 At least a portion of 6 is formed in the second layer. Therefore, as compared with the embodiment where all of the gate right lead wirings 61 1 to 61 7 are formed in one layer, the miniaturization of the active matrix substrate, a high definition can be realized.
- FIG. 3 is an enlarged view of a portion of the E 1 in FIG.
- the gate right connection wirings 64 1 to 64 7 are further connected to each of the plurality of gate terminals 51 to which the gate right extraction wirings 61 1 to 61 7 are connected. That is, the gate right connection wirings 64 1 to 64 7 are led out from the plurality of gate terminals 51 to the first side S 1 side (inspection wirings 66 and 67 described later).
- the right side connection wirings 64 1 to 64 7 for the gate are the first right connection wiring for the gate (first connection wiring) 64 1 , 64 3 , 64 5 , 64 7 and the right side second connection wiring for the gate (first connection wiring). 2 connection wiring) 64 2 , 64 4 , 64 6 .
- Gate right first connection wiring 64 1, 64 3, 64 5, 64 7, gate right first lead-out lines 61 1, 61 3, 61 5, 61 connections 7 are connected to a gate terminal 51 connected Wiring.
- the gate for the right second connection wiring 64 2, 64 4, 64 6, gate right second lead-out lines 61 2, 61 4, 61 6 is connected to the connection wiring to the gate terminal 51 connected.
- the right bundle of wiring lines (flux lines) 65 1-65 4 bundling two adjacent first right connection lines and the gate right second connection wiring for the gate of each other in one ing.
- the right bundle of wiring lines 65 1, two of the gate right first connection wiring 64 1 and the gate right second connection wiring 64 2 are bundled into one.
- the right bundle wires 65 2 are bundled two gate right first connection wiring 643 and the gate right second connection wiring 64 4 into one.
- the right bundle of wiring lines 65 3, two gate for right first connection wiring 64 5 and the gate right second connection wiring 64 6 are bundled into one.
- the right bundle of wiring lines 65 4 is connected only to one of the gate right first connection wiring 64 7.
- the right bundle of wiring lines 65 2, 65 4, gate right first inspection wiring 66 is further connected.
- a second inspection line 67 right-side gate is connected. That is, the gate right first inspection wiring 66 is an inspection wiring capable of inputting an inspection signal to the right bundle wirings 65 2 and 65 4 that are not adjacent to each other among the right bundle wirings 65 1 to 65 4 .
- the right second inspection wiring 67 for the gate is inspected to the right bundle wirings 65 1 and 65 3 that are not connected to the right first inspection wiring 66 for the gate among the right bundle wirings 65 1 to 65 4 and are not adjacent to each other. This is an inspection wiring capable of inputting a signal.
- the right bundle wiring 65 1 , 65 3 is connected to the right bundle wiring 65 1 , 65 3 because the right gate second inspection wiring 67 is connected to the right bundle wiring 65 1 , 65 3 .
- Wiring layer third switching units 68 1 and 68 3 and wiring layer fourth switching units 69 1 and 69 3 respectively. That is, in each of the wiring layer fourth switching sections 69 1 and 69 3 , the right bundle wirings 65 1 and 65 3 and the gate right second inspection wiring 67 are electrically connected.
- the gate right first inspection pad 70 is further connected to the gate right first inspection wiring 66.
- the gate first right inspection pad 70 is a pad to which an inspection signal can be input.
- the gate right lead wirings 61 3 , 61 4 , and 617 are connected to the gate right lead wires 61 3 , 61 4 , and 6 7 via the right bundle wirings 65 2 and 65 4 and the gate right connection wirings 64 3 , 64 4 , and 64 7 .
- An inspection signal can be input from one inspection pad 70.
- the gate right second inspection pad 71 is further connected to the gate right second inspection wiring 67.
- the gate right second inspection pad 71 is also a pad to which an inspection signal can be input.
- the right lead wirings 61 1 , 61 2 , 61 5 , and 61 6 for the gates are connected to the right bundle wirings 65 1 and 65 3 and the right connection wirings 64 1 , 64 2 , 64 5 , and 64 6 for the gates.
- the active matrix substrate 2 has the right bundle wiring 65 1 to 65 4 that bundles the two right side first connection wirings for gates and the right second connection wiring for gates that are adjacent to each other.
- the right bundle of wiring lines 65 2, 65 4 gate right first inspection line 66 is an aspect of the right bundle of wiring lines 65 1, 65 3 are connected to the second inspection line 67 right-side gate. Therefore, the gate right connection wirings 64 1 to 64 7 are not provided with the right bundle wiring, and are compared with the mode in which each of the gate right connection wirings 64 1 to 64 7 is directly connected to the gate right first inspection wiring 66 or the gate right second inspection wiring 67.
- the active matrix substrate 2 forms a right bundle wires 65 1-65 4 bundling two adjacent right-side gate of the first connection line and the gate right second connection wiring to each other in one since it is, it is possible to reduce the number of wires crossing the gate right first inspection wiring 66 (i.e., the number of intersections of the right bundle of wiring lines 65 1-65 4 and gate right first inspection line 66) . Since the number of intersections can be reduced, the load on the gate first right inspection wiring 66 can be reduced. Since the load can be reduced, the delay of the test signal input from the gate right first test pad 70 to the gate right first test wiring 66 can be reduced. As a result, since a desired inspection signal can be input to the gate wirings 40 and 41, a fine defect such as a short circuit between the pixel electrode and the source wiring 42 can be detected.
- the gate for the right first inspection line 66 is connected to each of the right bundle of wiring lines 65 2, 65 4, the second inspection line 67 right-side gate Are connected to the right bundle wires 65 1 and 65 3 , respectively. Therefore, the static electricity generated in the active matrix substrate 2 can be removed or dispersed from the gate right first inspection wiring 66 and the gate right second inspection wiring 67. Since static electricity generated in the active matrix substrate 2 can be removed or dispersed, it is possible to suppress a short circuit or disconnection of wiring due to the static electricity, a change in characteristics of the TFT or MIM, and the like.
- an input terminal 44 1-44 7 gate signal having the other end of the second gate wirings 41 1-41 7, the left gate that connects the gate terminal 51, respectively lead wires 72 1 to 72 7 are formed. That is, the left lead wirings 72 1 to 72 7 for gates are led out from the gate signal input ends 44 1 to 44 7 to the second side S 2 side, and are formed in the frame wiring region 6 along the second side S 2. , And connected to the gate terminal 51.
- the left lead wirings 72 1 to 72 7 for the gate are the first left lead wirings 72 1 , 72 3 , 72 5 , 72 7 for the gate and the second left lead wirings 72 2 , 72 4 , 72 6 for the gate.
- Gate first left lead wires 72 1, 72 3, 72 5, 72 7 are formed lead wiring in the first layer.
- the gate second left lead wires 72 2 , 72 4 , and 72 6 are lead wires formed in the second layer.
- the gate layer left second extraction wirings 72 2 , 72 4 , and 72 6 have wiring layer fifth switching units 73 2 and 73 4 formed on the gate signal input ends 44 2 , 44 4 , and 44 6 side. , and 73 6, and has the sixth switching unit 74 second wiring layer formed on the gate terminal 51 side, 74 4, 74 6 and, respectively.
- 2 second lead-out lines left gate 72, 72 4, 72 6 of the input terminal 44 of the gate signal 2, 44 4, 44 6 and the wiring layer fifth switching unit 73 2, 73 4, 73 wiring between the 6 are formed on the first layer, between the wiring layers fifth switching unit 73 2, 73 4, 73 6 and the wiring layer sixth switching unit 74 2, 74 4, 74 6 wiring is formed on the second layer, wiring between the wiring layers sixth switching unit 74 2, 74 4, 74 6 and the gate terminal 51 is formed on the first layer. That is, in each of the wiring layers fifth switching unit 73 2, 73 4, 73 6 and the wiring layers sixth switching unit 74 2, 74 4, 74 6, are formed on the wiring and the second layer formed on the first layer Wiring is electrically connected.
- Figure 4 is an enlarged view of a portion of the E 2 in Fig.
- left gate connection wires 75 1 to 75 7 for gates are further connected to each of the plurality of gate terminals 51 to which the left lead wires 72 1 to 72 7 for gates are connected. That is, the gate left connection wirings 75 1 to 75 7 are led out from each of the plurality of gate terminals 51 to the first side S 1 side (inspection wirings 77 and 78 described later).
- the left side connection wirings 75 1 to 75 7 for the gate are the first left connection wirings 75 1 , 75 3 , 75 5 , and 75 7 for the left side and the second left connection wirings 75 2 , 75 4 , and 75 6 for the left side.
- Gate first left connection lines 75 1, 75 3, 75 5, 75 7, 1 first lead-out lines left gate 72, 72 3, 72 5, 72 connections 7 are connected to a gate terminal 51 connected Wiring.
- the gate second left connection wires 75 2 , 75 4 , and 75 6 are connection wires connected to the gate terminal 51 to which the gate left second lead wires 72 2 , 72 4 , and 72 6 are connected.
- the frame wiring region 6 is formed with a left bundle wires 76 1-76 4 bundling adjacent two first left connection lines and the gate left second connection wiring for the gate of each other one.
- the left bundle of wiring lines 76 1, two gate for the first left connection lines 75 1 and the gate left second connection wiring 75 2 are bundled into one.
- the left bundle wires 76 2 are bundled two gate left first connection wiring 75 3 and the gate left second connection wiring 75 4 into one.
- the left bundle of wiring lines 763 are two first connection wiring 75 5 and the gate left second connection wiring 75 6 left gate a is bundled into one.
- the left bundle of wiring lines 764 is connected to only one gate left first connection wiring 75 7.
- the left bundle lines 76 2, 76 4, the first inspection wiring 77 left gate is further connected.
- the second inspection wiring 78 left gate is connected on the left side flux lines 76 1, 76 3, across the gate left first inspection line 77. That is, the gate first left inspection wiring 77 is an inspection wiring capable of inputting an inspection signal to the left bundle wirings 76 2 and 76 4 which are not adjacent to each other among the left bundle wirings 76 1 to 76 4 .
- the gate second left inspection wiring 78 is inspected to the left bundle wirings 76 1 and 76 3 that are not connected to the gate left first inspection wiring 77 among the left bundle wirings 76 1 to 76 4 and are not adjacent to each other. This is an inspection wiring capable of inputting a signal.
- the left bundle wires 76 1, 76 3, across the gate left first inspection wiring 77, the second inspection line 78 left gate is connected to the left bundle wires 76 1, 76 3 Wiring layer seventh switching units 79 1 and 79 3 and wiring layer eighth switching units 80 1 and 80 3 , respectively. That is, in each of the wiring layer eighth switching units 80 1 and 80 3 , the left bundle wirings 76 1 and 76 3 and the gate left second inspection wiring 78 are electrically connected.
- the gate left first inspection pad 81 is further connected to the gate left first inspection wiring 77.
- the gate first left inspection pad 81 is a pad to which an inspection signal can be input.
- the gate left second inspection pad 82 is further connected to the gate left second inspection wiring 78.
- the gate second left inspection pad 82 is also a pad to which an inspection signal can be input.
- the left bundle of wiring lines 76 1, 76 3, and through the gate left connection lines 75 1, 75 2, 75 5, 75 6, gate left lead wirings 72 1, 72 2, 72 5, 72 6 Can receive an inspection signal from the second inspection pad 82 on the left side of the gate.
- the source wiring 42 1, 42 2, 42 3 an input terminal 45 of the source signal with the one end of ⁇ ⁇ ⁇ 42 i 1, 45 2, 45 3, ⁇ ⁇ ⁇ Source wirings 83 1 , 83 2 , 83 3 ,... 83 i for connecting 45 i and the source terminal 52 are formed. That is, the source lead-out wiring 83 is led out from the source signal input end 45 to the first side S 1 side and is connected to the source terminal 52.
- the source for the lead wires 83 1, 83 2, 83 3, in each of a plurality of source terminals 52 ⁇ ⁇ ⁇ 83 i is connected, the source connection wire 84 1, 84 2, 84 3, ... • 84 i is further connected. That is, the source connection wirings 84 1 , 84 2 , 84 3 ,... 84 i are drawn from the plurality of source terminals 52 to the first side S 1 side (inspection wirings 85 and 86 described later). Yes.
- the source first inspection wiring 85 is further connected to the source connection wirings 84 1 , 84 3 , 84 5 ,... 84 i .
- the source second inspection wiring 86 is further connected to the source connection wiring 84 2 , 84 4 , 84 6 ,... 84 i ⁇ 1 . That is, the first inspection line 85 for the source, the source connection wire 84 1, 84 2, 84 3, the source connecting wirings 84 1 that are not adjacent to each other among the ⁇ ⁇ ⁇ 84 i, 84 3, 84 5, ⁇ ⁇ ⁇ 84 is an input capable of inspection line inspection signal to the i.
- the second inspection line 86 for the source, the source connection wire 84 1, 84 2, 84 3 , ⁇ 84 i for source first inspection line 85 for the source is not adjacent yet without and with each other are connected among the Connection wiring 84 2 , 84 4 , 84 6 ,... 84 i-1 is inspection wiring that can input inspection signals to i-1 .
- a source first inspection pad 87 is further connected to the source first inspection wiring 85.
- the first source inspection pad 87 is a pad to which an inspection signal can be input.
- the first inspection line 85 for the source, and the source connection wire 84 1, 84 3, 84 5, through ... 84 i, a source for leading interconnection 83 1, 83 3, 83 5, ... 83 i can receive an inspection signal from the first inspection pad 87 for source.
- a second source inspection pad 88 is further connected to the source second inspection wiring 86.
- the source second inspection pad 88 is also a pad to which an inspection signal can be input.
- the second inspection line 86 for the source, and the source connection wire 84 2, 84 4, 84 6, via a ⁇ ⁇ ⁇ 84 i-1, a source for leading interconnection 83 2, 83 4, 83 6, - .. 83 i ⁇ 1 can receive an inspection signal from the second inspection pad 88 for source.
- the common inspection wiring 89 is formed in the frame wiring region 6 so as to surround the gate right lead wirings 61 1 to 61 7, and the gate left lead wirings 72 1 to 72 7, the common inspection wiring 89 is formed.
- Common electrode pads 90 and 91 are connected to the common inspection wiring 89.
- transfer pads 92 and 93 are further connected to the common inspection wiring 89.
- the transfer pads 92 and 93 are connected to a common electrode (not shown) formed on the counter substrate 3. As a result, a common voltage can be applied from the common electrode pads 90 and 91 to the common electrode formed on the counter substrate 3.
- a thin substrate such as a black matrix, a color filter, a conductive film, and an alignment film is laminated on a transparent glass substrate to produce a base substrate for a counter substrate in which a plurality of counter substrate regions to be cut out as the counter substrate 3 are formed.
- a sealing agent is applied to one of the base substrates. And after apply
- the two base substrates bonded together are cut as a mother substrate on which a predetermined number (for example, four in the left-right direction) of the liquid crystal panel 1 having the active matrix substrate 2 and the counter substrate 3 is formed. That is, the liquid crystal panel 1 shown in FIG. 1 shows one of the liquid crystal panels cut as a mother substrate after injecting a liquid crystal material. Accordingly, although not shown, other liquid crystal panels exist on the left and right sides of the liquid crystal panel 1 of FIG. Then, a liquid crystal material is injected into each of the liquid crystal panels 1 cut as a mother substrate through an injection port formed between the active matrix substrate 2 and the counter substrate 3 by using, for example, a vacuum injection method. . Note that the liquid crystal material may be injected by using a dropping injection method instead of the vacuum injection method. In this case, the injection port is unnecessary, and the step of sealing the injection port portion is also unnecessary.
- the inspection step inspects the disconnection / short circuit of the wiring in the active matrix substrate 2 of the liquid crystal panel 1 and the defect of the pixel electrode.
- an inspection probe is brought into contact with each inspection pad 70, 71, 81, 82, 87, 88, 90, 91, and a predetermined voltage is applied.
- the order in which the inspection probes are brought into contact with the inspection pads 70, 71, 81, 82, 87, 88, 90, 91 is not particularly limited here.
- an inspection signal that functions as a scanning signal is input to the gate wirings 40 and 41.
- This inspection signal is a signal for turning on the switching element of each pixel for a certain period.
- a test signal that functions as a source signal is input to the source wiring 42.
- This inspection signal is a signal for aligning the liquid crystal in each pixel region in a desired direction.
- the switching element of each pixel is turned on, and an inspection signal that functions as a source signal is input to each pixel electrode, whereby the molecular arrangement direction of the liquid crystal is controlled.
- an irradiation unit such as a backlight irradiates, an image is displayed on the display screen of the liquid crystal panel 1 corresponding to the display area 4 of the active matrix substrate 2 (hereinafter referred to as “display screen of the liquid crystal panel 1”). It becomes like this. Therefore, on the display screen of the liquid crystal panel 1, it is possible to inspect the disconnection / short circuit of the wiring in the active matrix substrate 2 of the liquid crystal panel 1, for example, by visual inspection by an inspector. Instead of or in addition to the visual inspection by the inspector, an image recognition device may be used, or a detection device that electrically detects disconnection / short circuit of the wiring may be used.
- a test probe is brought into contact with the first source test pad 87, the second source test pad 88, and the common electrode pads 90 and 91.
- independent inspection signals are input to the gate right first inspection wiring 66 and the gate right second inspection wiring 67.
- the inspection probe is brought into contact only with the gate right first inspection pad 70 and the inspection probe is not brought into contact with the gate right second inspection pad 71.
- the inspection signal is input only to the gate right second lead wirings 61 2 and 61 6 among the gate right second lead wirings 61 2 , 61 4 and 61 6 (FIG. 2). Therefore, when the second layer to the right for formed gate second lead wirings 61 2, 61 4, 61 while 6 were short-circuited, the display screen of the liquid crystal panel 1, inspection signal is input the first gate wiring 40 2, 40 6 not only the corresponding line, right-side gate inspection signal is not input second lead wire 61 4 connected to the gate right second lead-out lines 61 2, 61 6 are to the line corresponding to the first gate wiring 40 4 connected to also be displayed. Therefore, the inspector is able to detect a short circuit between the second right-side gate formed in the layer the second extraction wirings 61 2, 61 4, 61 6.
- the inspection probe is brought into contact with only the gate left first inspection pad 81 and the inspection probe is not brought into contact with the gate left second inspection pad 82.
- the inspector the gate formed on the first layer first left lead wires 72 1, 72 3, 72 5, 72 short circuit between 7 and gate left second formed on the second layer it is possible to detect the lead wirings 72 2, 72 4, 72 short circuit between 6.
- the display screen of the liquid crystal panel 1 does not display a line corresponding to the gate wiring after the disconnected position.
- the source wiring 42 is disconnected, a line corresponding to the source wiring after the disconnected position is not displayed on the display screen of the liquid crystal panel 1.
- the inspector can detect disconnection of the gate wirings 40 and 41 and the source wiring 42.
- the inspector can detect a short circuit between the source wiring 42 and the source lead wiring 83. .
- a short circuit between the pixel electrode and the source wiring 42 can be detected. That is, it is possible to inspect not only a short circuit / disconnection of the gate wirings 40 and 41, the source wiring 42, the gate right lead wiring 61, and the gate left lead wiring 72 but also a defect of the pixel electrode.
- a cutting step of cutting the gate for the right connection lines 64 1 to 64 7, and the gate left connection lines 75 1 to 75 7 are performed. Specifically, cut by laser along the cut line C showing the gate right connecting wirings 64 1 to 64 7 in FIG. 3, for example. Accordingly, the gate terminal 51 of first lead-out lines 61 right gate 1, 61 3, 61 5, 61 7 each is connected, the gate right second lead-out lines 61 2, 61 4, 61 each 6 The connected gate terminal 51 is not electrically connected. Furthermore, cutting by laser along a cut line C showing the gate left connection lines 75 1 to 75 7 in FIG. 4, for example. Thus, the gate terminal 51 of the first lead-out lines left gate 75 1, 75 3, 75 5, 75 7 each is connected, the second lead-out lines left gate 75 2, 75 4, 75 respectively of 6 The connected gate terminal 51 is not electrically connected.
- connection wiring is cut by the laser along the cut line C.
- the liquid crystal panel 1a as shown in FIG.
- the manufacturing process of the liquid crystal panel can be simplified.
- the substrate in the portion A in FIG. 5 on which the respective inspection pads 70, 71, 81, 82, 87, 88, 90, 91 are formed is cut off, the outer shape of the liquid crystal panel to be mounted on the display device Can be reduced.
- the liquid crystal panel 1 is manufactured.
- the method for manufacturing the liquid crystal panel 1 is not limited to the above method. For example, in a monochrome liquid crystal panel, a color filter may not be stacked on the counter substrate. Further, the inspection process and the mounting process may be performed after each liquid crystal panel is cut out.
- the active matrix substrate 2 in the present embodiment when the lead-out wiring is formed in each of the plurality of layers, the adjacent lead-out wirings formed in the same layer (the right side gate first gate). A short circuit between one lead-out line, between the gate right-side second lead-out line, between the gate left-side first lead-out line, and between the gate left-side second lead-out line can be reliably detected with a simple configuration.
- FIG. 6 is an enlarged view of the same portion as the E 1 portion shown in FIG.
- a resistance element R is further connected to each of the gate right connection wirings 64 1 to 64 7 according to the present embodiment.
- the resistance element R includes, for example, a pattern formed of ITO or IZO used as a pixel electrode, a pattern formed of a TFT semiconductor film, a diode, a transistor, an arbitrary pattern, or the like. Also in each of the gate left connection lines 72 1 to 72 7 according to the present embodiment, resistance element R is further connected.
- the resistance element R is connected to each of the gate right connection wirings 64 1 to 64 7 , in the cutting process, instead of the gate right connection wirings 64 1 to 64 7 , the right bundle wirings 65 1 to 65 7 .
- the gate right side first lead wires 61 1 , 61 3 , 61 5 , and 6 17 are connected to the gate terminal 51.
- the gate terminal 51 to which each of the gate right second lead wirings 61 2 , 61 4 , and 61 6 is connected is electrically connected.
- the liquid crystal panel 1 according to the present embodiment is a case where the liquid crystal panel 1 is incorporated in an electronic device.
- an inspection signal is input from each inspection pad so that each wiring (gate wiring, source wiring, lead wiring, etc.) reaches a desired potential. Therefore, the inspection can be performed without any problem.
- the value of the resistance element R is several tens to several hundreds M ⁇ , the electrical influence from the adjacent wiring is reduced. More specifically, only potential fluctuations of several percent (for example, 1%) or less are received. If the potential fluctuation is several% or less, there is almost no influence on the charging rate and display of the pixel electrode. For this reason, if the value of the resistance element R is several tens to several hundreds M ⁇ , no problem occurs in the operation of the electronic device even when the liquid crystal panel 1 according to the present embodiment is incorporated in the electronic device. Absent. Further, if the value of the resistance element R is several hundred M ⁇ or more, it is difficult to remove charges accumulated in the wiring and the pixel electrode after performing the inspection process.
- the value of the resistance element R is preferably several tens to several hundreds M ⁇ as described above. Note that, depending on the size of the display area 4 and the number of pixels, the value of the resistance element R is arbitrarily selected from several tens to several hundreds M ⁇ .
- the resistance element R is connected to each of the gate right connection wirings 64 1 to 64 7 , static electricity has entered from the gate right first inspection wiring 66 and the gate right second inspection wiring 67. Even in this case, the resistance element R functions as a protection element against static electricity, so that the entry of static electricity into the display region 4 can be prevented. Thereby, the display quality of the liquid crystal panel 1 is improved, and the yield of the liquid crystal panel can be improved.
- the value of the resistance element R is connected to the first connection wiring 64 1, 64 3, 64 5, 64 7 the right gate, right-side gate second connection wiring 64 2, 64 4, 64 6
- the value of the resistance element R is preferably substantially the same value. That is, if the value of the resistance element R connected to each of the adjacent connection wirings is substantially the same value, the inspection to be input to the extraction wiring corresponding to the adjacent connection wiring and the gate wiring corresponding to the extraction wiring The signal delay amount can be made substantially equal. For this reason, if the wiring of the active matrix substrate 2 is normal, the display screen of the liquid crystal panel 1 displays substantially the same. In other words, when the display is not substantially equivalent, the inspector can detect that a defect has occurred, such as when the wiring width is minimized, although the disconnection does not occur.
- the present invention is not limited to this. That is, it is only necessary that the resistance element is connected to at least one of the connection wirings adjacent to each other.
- the present invention is not limited to this.
- the present invention can of course be applied to an IPS (In-Plane-Switching) mode liquid crystal panel in which a common electrode is formed on an active matrix substrate.
- IPS In-Plane-Switching
- the present invention can be applied to an MVA (Multi-Domain Vertical Aligned) mode liquid crystal panel, an OCB (Optically Compensated Bend) mode liquid crystal panel, and the like.
- the present invention is not limited to this. That is, an R gate wiring, a G gate wiring, and a B gate wiring may be formed in the display region. In this case, it is not necessary to provide source wiring for each RGB.
- each pixel in the display area is not limited to a stripe shape.
- a so-called delta arrangement in which the arrangement pitch is shifted for each line may be used.
- the method for inputting the inspection signal for the gate wiring and the source wiring is not limited to that shown in FIGS.
- An inspection signal may be input from the inspection pad to the gate wiring or the source wiring via a switching element such as a TFT.
- the driving circuit for the gate wiring and the source wiring may be formed directly on the active matrix substrate. Further, this drive circuit may be driven at the time of inspection.
- each inspection pad may be formed on a substrate different from the active matrix substrate, and only the inspection wiring capable of inputting the inspection signal supplied from each inspection pad may be formed on the active matrix substrate.
- the active circuit when the lead-out wiring is formed in each of the plurality of layers, the active circuit can reliably detect a short circuit between adjacent lead-out wirings formed in the same layer with a simple configuration. It is useful as a matrix substrate, a display device, an active matrix substrate inspection method, and a display device inspection method.
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Abstract
Description
図1は、本実施形態に係る液晶パネル1の概略構成を示す平面図である。図1に示すように、液晶パネル1は、アクティブマトリクス基板2と、アクティブマトリクス基板2に対向する対向基板3とを備えている。アクティブマトリクス基板2と対向基板3との間には、図示しない液晶材料が狭持されている。なお、本実施形態に係る対向基板3には、R(赤)、G(緑)、B(青)のカラーフィルタと、これらのカラーフィルタ間の光漏れを防止するブラックマトリクスとを含むカラーフィルタ層が形成されている。また、カラーフィルタ層の上には、共通電極が形成されている。
図6は、図1中に示したE1の部分と同じ部分を拡大した図である。図6に示すように、本実施形態に係るゲート用右側接続配線641~647のそれぞれには、抵抗素子Rがさらに接続されている。ここで、抵抗素子Rは、例えば、画素電極として用いられるITOやIZO等で形成したパターン、TFTの半導体膜で形成したパターン、ダイオード、トランジスタ、任意のパターン等から構成される。なお、本実施形態に係るゲート用左側接続配線721~727のそれぞれにも、抵抗素子Rがさらに接続されている。
Claims (12)
- 表示領域に互いに平行に形成された複数の第1配線と、
前記表示領域において前記複数の第1配線と交差するよう、かつ互いに平行に形成された複数の第2配線と、
端子配置領域に配置された複数の第1端子と、
前記端子配置領域に配置された複数の第2端子と、
前記複数の第1配線と前記複数の第1端子とをそれぞれ接続する複数の第1引出配線と、
前記複数の第2配線と前記複数の第2端子とをそれぞれ接続する複数の第2引出配線とを備えたアクティブマトリクス基板において、
前記複数の第1引出配線は、複数の第3引出配線と、複数の第4引出配線とを含み、
前記第3引出配線は、前記第1配線が形成された層と同じ層に形成されており、前記第4引出配線の少なくとも一部分は、前記第1配線が形成された層と絶縁材料を挟んで異なる層に形成されており、かつ、前記表示領域および前記端子配置領域以外の額縁配線領域において前記第3引出配線と前記第4引出配線とが、1本毎に交互に形成されており、
前記アクティブマトリクス基板は、
前記複数の第3引出配線のそれぞれが接続された複数の第1端子のそれぞれに接続される複数の第1接続配線と、
前記複数の第4引出配線のそれぞれが接続された複数の第1端子のそれぞれに接続される複数の第2接続配線と、
互いに隣接する2本の前記第1接続配線および前記第2接続配線を1本に束ねる複数の束配線と、
前記複数の束配線のうちで互いに隣接しない束配線を共通接続する第1共通配線と、
前記複数の束配線のうち前記第1共通配線が接続されておらずかつ互いに隣接しない束配線を共通接続する第2共通配線とを備えた、アクティブマトリクス基板。 - 前記複数の第3引出配線のそれぞれが接続された複数の第1端子と、前記複数の第4引出配線のそれぞれが接続された複数の第1端子とが電気的に導通しないように、前記複数の第1接続配線および前記複数の第2接続配線が切断されている、請求項1に記載のアクティブマトリクス基板。
- 互いに隣接する2本の前記第1接続配線および前記第2接続配線のうち、少なくともいずれか一方の接続配線に抵抗素子が接続される、請求項1に記載のアクティブマトリクス基板。
- 互いに隣接する2本の前記第1接続配線および前記第2接続配線のそれぞれに抵抗素子が接続される、請求項3に記載のアクティブマトリクス基板。
- 前記第1接続配線に接続された抵抗素子と、前記第2接続配線に接続された抵抗素子とは、略同じ抵抗値を有する、請求項4に記載のアクティブマトリクス基板。
- 前記複数の束配線のそれぞれが切断されている、請求項3~5のいずれか一項に記載のアクティブマトリクス基板。
- 前記第1配線は、ゲート配線であり、前記第2配線は、ソース配線である、請求項1~6のいずれか一項に記載のアクティブマトリクス基板。
- 前記第1配線は、ソース配線であり、前記第2配線は、ゲート配線である、請求項1~6のいずれか一項に記載のアクティブマトリクス基板。
- 請求項1~8のいずれか一項に記載のアクティブマトリクス基板を備える、表示装置。
- 前記表示装置は、液晶表示装置である、請求項9に記載の表示装置。
- 請求項1に記載のアクティブマトリクス基板、または、請求項1に記載のアクティブマトリクス基板を備えた表示装置の検査方法であって、
前記第1共通配線および前記第2共通配線に互いに独立した検査信号を入力することにより、前記第3引出配線および前記第4引出配線の検査を行う検査工程と、
前記検査工程の後に、前記複数の第1接続配線および前記複数の第2接続配線を切断する切断工程とを含む、アクティブマトリクス基板または表示装置の検査方法。 - 請求項3~5のいずれか一項に記載のアクティブマトリクス基板、または、請求項3~5のいずれか一項に記載のアクティブマトリクス基板を備えた表示装置の検査方法であって、
前記第1共通配線および前記第2共通配線に互いに独立した検査信号を入力することにより、前記第3引出配線および前記第4引出配線の検査を行う検査工程と、
前記検査工程の後に、前記複数の束配線を切断する切断工程とを含む、アクティブマトリクス基板または表示装置の検査方法。
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EP09800266.0A EP2317492B1 (en) | 2008-07-23 | 2009-05-11 | Active matrix substrate, display device, method for inspecting the active matrix substrate, and method for inspecting the display device |
BRPI0917025A BRPI0917025A2 (pt) | 2008-07-23 | 2009-05-11 | substrato de matriz ativo, dispositivo de exibição, método para inspecionar o substrato de matriz ativa, e método para inspecionar o dispositivo de exibição |
US13/055,029 US8502227B2 (en) | 2008-07-23 | 2009-05-11 | Active matrix substrate, display device, method for inspecting the active matrix substrate, and method for inspecting the display device |
EP14001099.2A EP2797069B1 (en) | 2008-07-23 | 2009-05-11 | Active matrix substrate, display device, method for inspecting the active matrix substrate, and method for inspecting the display device |
RU2011106755/08A RU2475866C2 (ru) | 2008-07-23 | 2009-05-11 | Подложка активной матрицы, дисплейное устройство, способ проверки подложки активной матрицы и способ проверки дисплейного устройства |
CN2009801284898A CN102099847B (zh) | 2008-07-23 | 2009-05-11 | 有源矩阵基板、显示装置、有源矩阵基板的检查方法和显示装置的检查方法 |
KR1020117004004A KR101247023B1 (ko) | 2008-07-23 | 2009-05-11 | 액티브 매트릭스 기판, 표시 장치, 액티브 매트릭스 기판의 검사 방법 및 표시 장치의 검사 방법 |
JP2010521632A JP4982609B2 (ja) | 2008-07-23 | 2009-05-11 | アクティブマトリクス基板、表示装置、アクティブマトリクス基板の検査方法、および表示装置の検査方法 |
US13/941,286 US9299877B2 (en) | 2008-07-23 | 2013-07-12 | Active matrix substrate, display device, method for inspecting the active matrix substrate, and method for inspecting the display device |
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US13/941,286 Continuation US9299877B2 (en) | 2008-07-23 | 2013-07-12 | Active matrix substrate, display device, method for inspecting the active matrix substrate, and method for inspecting the display device |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012177927A (ja) * | 2008-07-23 | 2012-09-13 | Sharp Corp | アクティブマトリクス基板、表示装置、アクティブマトリクス基板の製造方法または検査方法、および表示装置の製造方法または検査方法 |
WO2013011911A1 (ja) * | 2011-07-19 | 2013-01-24 | シャープ株式会社 | 素子基板の製造方法 |
JP2013164573A (ja) * | 2012-02-10 | 2013-08-22 | Samsung Display Co Ltd | 有機発光表示装置 |
JP2015155967A (ja) * | 2014-02-20 | 2015-08-27 | 三菱電機株式会社 | アレイ基板、アレイ基板の検査方法および表示パネルの検査方法 |
WO2016185642A1 (ja) * | 2015-05-21 | 2016-11-24 | パナソニック液晶ディスプレイ株式会社 | 表示パネル |
CN111508858A (zh) * | 2020-05-06 | 2020-08-07 | 中国电子科技集团公司第四十四研究所 | Emccd倍增区电极短路的检测方法 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140064553A (ko) * | 2012-11-20 | 2014-05-28 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 및 그 제조 방법 |
KR102025835B1 (ko) * | 2012-11-26 | 2019-11-27 | 삼성디스플레이 주식회사 | 표시 장치 및 유기 발광 표시 장치 |
TWI505010B (zh) * | 2013-11-12 | 2015-10-21 | E Ink Holdings Inc | 主動元件陣列基板 |
US9785032B2 (en) | 2013-11-12 | 2017-10-10 | E Ink Holdings Inc. | Active device array substrate and display panel |
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JP6805604B2 (ja) * | 2016-07-26 | 2020-12-23 | セイコーエプソン株式会社 | 電気光学装置および電子機器 |
CN109390352A (zh) * | 2017-08-09 | 2019-02-26 | 昆山国显光电有限公司 | 阵列基板及其制造方法、显示面板及其制造方法 |
KR102392373B1 (ko) * | 2017-08-24 | 2022-04-29 | 삼성디스플레이 주식회사 | 표시 장치 |
CN108052462B (zh) * | 2017-12-20 | 2019-12-10 | 苏州华兴源创科技股份有限公司 | 一种oled基板识别系统与方法 |
US10852591B2 (en) * | 2018-06-29 | 2020-12-01 | Sharp Kabushiki Kaisha | Image display device |
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TWI742519B (zh) * | 2019-07-26 | 2021-10-11 | 友達光電股份有限公司 | 可撓性顯示裝置及其製造方法 |
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KR102182538B1 (ko) * | 2019-09-20 | 2020-11-25 | 삼성디스플레이 주식회사 | 표시 장치 및 유기 발광 표시 장치 |
KR102269139B1 (ko) * | 2019-09-20 | 2021-06-25 | 삼성디스플레이 주식회사 | 표시 장치 및 유기 발광 표시 장치 |
US11415854B2 (en) * | 2020-06-29 | 2022-08-16 | Sharp Kabushiki Kaisha | Liquid crystal display device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09329796A (ja) * | 1996-06-10 | 1997-12-22 | Hitachi Ltd | 液晶表示基板 |
JPH11119683A (ja) * | 1997-10-13 | 1999-04-30 | Fujitsu Ltd | 液晶表示パネルの検査方法 |
JP2002090424A (ja) * | 2000-09-14 | 2002-03-27 | Toshiba Corp | マトリクスアレイ基板 |
JP2004053702A (ja) * | 2002-07-17 | 2004-02-19 | Hitachi Displays Ltd | 液晶表示装置 |
JP2004110034A (ja) * | 2002-09-16 | 2004-04-08 | Samsung Electronics Co Ltd | 表示装置用基板、液晶表示装置及び液晶表示装置の製造方法 |
JP2004310024A (ja) * | 2002-11-19 | 2004-11-04 | Samsung Electronics Co Ltd | 液晶表示装置及びその検査方法 |
WO2005029450A1 (ja) * | 2003-09-19 | 2005-03-31 | Sharp Kabushiki Kaisha | 電極配線基板および表示装置 |
WO2008015808A1 (fr) * | 2006-07-31 | 2008-02-07 | Sharp Kabushiki Kaisha | Substrat de matrice active, afficheur et procédé d'inspection de substrat de matrice active |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3010800B2 (ja) * | 1991-07-16 | 2000-02-21 | 日本電気株式会社 | 液晶表示装置及び液晶表示パネル |
JP2758105B2 (ja) * | 1992-04-28 | 1998-05-28 | シャープ株式会社 | アクティブマトリクス基板の検査方法及び検査装置 |
US5426447A (en) * | 1992-11-04 | 1995-06-20 | Yuen Foong Yu H.K. Co., Ltd. | Data driving circuit for LCD display |
JP3315834B2 (ja) | 1995-05-31 | 2002-08-19 | 富士通株式会社 | 薄膜トランジスタマトリクス装置及びその製造方法 |
JP3251474B2 (ja) | 1995-09-06 | 2002-01-28 | シャープ株式会社 | アクティブマトリクス基板 |
JP3276557B2 (ja) | 1996-05-23 | 2002-04-22 | 三菱電機株式会社 | 液晶表示装置 |
JP2002116453A (ja) * | 2000-10-05 | 2002-04-19 | Matsushita Electric Ind Co Ltd | 液晶画像表示装置とその製造方法、および画像検査方法 |
KR100769160B1 (ko) * | 2000-12-29 | 2007-10-23 | 엘지.필립스 엘시디 주식회사 | 액정표시장치의 테스트 패드 |
JP2002328627A (ja) * | 2001-04-27 | 2002-11-15 | Seiko Epson Corp | 表示装置の検査方法 |
JP2002341377A (ja) | 2001-05-15 | 2002-11-27 | Matsushita Electric Ind Co Ltd | 薄膜トランジスタアレイ基板 |
JP3977061B2 (ja) | 2001-11-21 | 2007-09-19 | シャープ株式会社 | 液晶表示装置及びその欠陥修復方法 |
JP2004325956A (ja) * | 2003-04-25 | 2004-11-18 | Sharp Corp | 表示装置及びその製造方法 |
US7205209B2 (en) * | 2004-05-11 | 2007-04-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Fabrication of stacked dielectric layer for suppressing electrostatic charge buildup |
JP4627065B2 (ja) * | 2004-05-27 | 2011-02-09 | シャープ株式会社 | アクティブマトリクス基板、その画素欠陥修正方法及び製造方法 |
KR100692691B1 (ko) * | 2004-10-26 | 2007-03-14 | 비오이 하이디스 테크놀로지 주식회사 | 액정표시장치 |
JP4667846B2 (ja) * | 2004-12-10 | 2011-04-13 | 三菱電機株式会社 | 薄膜トランジスタアレイ基板の製造方法 |
JP2007219046A (ja) * | 2006-02-15 | 2007-08-30 | Epson Imaging Devices Corp | 液晶表示パネル |
JP2007256540A (ja) * | 2006-03-22 | 2007-10-04 | Sharp Corp | 液晶表示装置の検査方法、及び液晶表示装置 |
JP5036865B2 (ja) * | 2008-05-16 | 2012-09-26 | シャープ株式会社 | アクティブマトリクス基板、表示装置、アクティブマトリクス基板の検査方法、および表示装置の検査方法 |
CN102099847B (zh) * | 2008-07-23 | 2013-03-13 | 夏普株式会社 | 有源矩阵基板、显示装置、有源矩阵基板的检查方法和显示装置的检查方法 |
-
2009
- 2009-05-11 CN CN2009801284898A patent/CN102099847B/zh not_active Expired - Fee Related
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- 2009-05-11 KR KR1020117004004A patent/KR101247023B1/ko active IP Right Grant
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09329796A (ja) * | 1996-06-10 | 1997-12-22 | Hitachi Ltd | 液晶表示基板 |
JPH11119683A (ja) * | 1997-10-13 | 1999-04-30 | Fujitsu Ltd | 液晶表示パネルの検査方法 |
JP2002090424A (ja) * | 2000-09-14 | 2002-03-27 | Toshiba Corp | マトリクスアレイ基板 |
JP2004053702A (ja) * | 2002-07-17 | 2004-02-19 | Hitachi Displays Ltd | 液晶表示装置 |
JP2004110034A (ja) * | 2002-09-16 | 2004-04-08 | Samsung Electronics Co Ltd | 表示装置用基板、液晶表示装置及び液晶表示装置の製造方法 |
JP2004310024A (ja) * | 2002-11-19 | 2004-11-04 | Samsung Electronics Co Ltd | 液晶表示装置及びその検査方法 |
WO2005029450A1 (ja) * | 2003-09-19 | 2005-03-31 | Sharp Kabushiki Kaisha | 電極配線基板および表示装置 |
WO2008015808A1 (fr) * | 2006-07-31 | 2008-02-07 | Sharp Kabushiki Kaisha | Substrat de matrice active, afficheur et procédé d'inspection de substrat de matrice active |
Non-Patent Citations (1)
Title |
---|
See also references of EP2317492A4 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012177927A (ja) * | 2008-07-23 | 2012-09-13 | Sharp Corp | アクティブマトリクス基板、表示装置、アクティブマトリクス基板の製造方法または検査方法、および表示装置の製造方法または検査方法 |
WO2013011911A1 (ja) * | 2011-07-19 | 2013-01-24 | シャープ株式会社 | 素子基板の製造方法 |
JP2013164573A (ja) * | 2012-02-10 | 2013-08-22 | Samsung Display Co Ltd | 有機発光表示装置 |
US9735219B2 (en) | 2012-02-10 | 2017-08-15 | Samsung Display Co., Ltd. | Organic light emitting diode display |
JP2015155967A (ja) * | 2014-02-20 | 2015-08-27 | 三菱電機株式会社 | アレイ基板、アレイ基板の検査方法および表示パネルの検査方法 |
WO2016185642A1 (ja) * | 2015-05-21 | 2016-11-24 | パナソニック液晶ディスプレイ株式会社 | 表示パネル |
US10128276B2 (en) | 2015-05-21 | 2018-11-13 | Panasonic Liquid Crystal Display Co., Ltd. | Display panel |
CN111508858A (zh) * | 2020-05-06 | 2020-08-07 | 中国电子科技集团公司第四十四研究所 | Emccd倍增区电极短路的检测方法 |
CN111508858B (zh) * | 2020-05-06 | 2022-11-08 | 中国电子科技集团公司第四十四研究所 | Emccd倍增区电极短路的检测方法 |
Also Published As
Publication number | Publication date |
---|---|
RU2011106755A (ru) | 2012-08-27 |
KR101247023B1 (ko) | 2013-03-25 |
EP2797069A1 (en) | 2014-10-29 |
US20110127536A1 (en) | 2011-06-02 |
JPWO2010010750A1 (ja) | 2012-01-05 |
US8502227B2 (en) | 2013-08-06 |
JP5438798B2 (ja) | 2014-03-12 |
EP2317492B1 (en) | 2014-05-14 |
US20130299850A1 (en) | 2013-11-14 |
CN102099847B (zh) | 2013-03-13 |
KR20110031503A (ko) | 2011-03-28 |
JP4982609B2 (ja) | 2012-07-25 |
JP2012177927A (ja) | 2012-09-13 |
EP2317492A4 (en) | 2011-12-21 |
BRPI0917025A2 (pt) | 2016-02-16 |
RU2475866C2 (ru) | 2013-02-20 |
CN102099847A (zh) | 2011-06-15 |
EP2797069B1 (en) | 2019-07-10 |
US9299877B2 (en) | 2016-03-29 |
EP2317492A1 (en) | 2011-05-04 |
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