TW200905340A - Liquid crystal display device - Google Patents

Abstract

A power supply wiring (250) which is disposed on an array substrate (3) and supplies a predetermined potential to a counter-electrode (9), includes a power supply pad (PD) which is included in a third electrically conductive layer, a first wiring (P1) which is included in a first electrically conductive layer and is electrically connected to the power supply pad, a second wiring (P2) which is included in a second electrically conductive layer, and a bridge wiring (PB) which is included in the third electrically conductive layer and electrically connects the first wiring and the second wiring, the power supply wiring being electrically connected to the counter-electrode via an electrically conductive member (300) which is disposed on the power supply pad.

Description

200905340 IX. Description of the Invention: [Technical Field] The present invention generally relates to a liquid crystal display device, and more particularly to supplying power from a power supply line disposed on an array substrate to a pair One of the structures of the pair of electrodes on the substrate. [Prior Art] A liquid crystal display device which is a typical example of a flat screen display device includes a liquid crystal display panel which is constructed such that a liquid crystal layer is held between an array substrate and an opposite substrate which are adhered to each other via a sealing member. The liquid crystal display panel &amp; includes a region composed of pixels arranged in a matrix. In the active area, the array substrate includes a plurality of scan lines extending in a column direction of the pixels; a plurality of signal lines extending in a row direction of the pixels are disposed at an intersection of the scan lines and the signal lines A nearby switching element, and a pixel electrode connected to the associated switching element. Various power supply structures for supplying potential from the array substrate side to a pair of electrodes disposed on the opposite substrate have been proposed. For example, a power supply structure is proposed in which a power supply line on the array substrate side and a pair of opposite electrodes on the opposite substrate side are externally connected via one of the sealing members, for example, in Japanese Patent Application No. 8-234220. - Conductive parts are connected. SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device having high reliability, which comprises a power supply structure capable of enhancing electrostatic withstand voltage characteristics and supplying power from a power supply line 4 to a pair of electrodes. According to an aspect of the present invention, there is provided a liquid crystal display device comprising a package 129328.doc 200905340: a substrate comprising a first conductive layer; 16 disposed on a first insulating layer covering a human conductive layer. Covering a layer of 筮 筮 筮 筮 , , , , , , , , , , , , , D D D D D D D D D D D D D D D D D D D D D D D D D D D D a liquid crystal layer in a gap-to-gap; and a power supply line disposed on the array substrate along an outer periphery of an active area of the display image and supplying a predetermined power: the power supply line of the opposite electrode a power supply contact pad included in the third conductive layer; a first line included in the first conductive layer and electrically connected to the power supply contact; and a second line included in the second conductive layer And a third conductive layer: and electrically connecting the first line and the second line of the bridge line, the source supply line is electrically connected to the pair via a conductive member disposed on the power supply contact pad To the electrode. The present invention provides a highly reliable liquid crystal display device including a power supply structure capable of enhancing electrostatic withstand voltage characteristics and accurately supplying power from a power supply line to a pair of electrodes. The additional objects and advantages of the invention will be set forth in the description in the description in the claims. The objects and advantages of the invention may be realized and obtained by means of the <RTIgt; σ [embodiment]

A display device according to an embodiment of the present invention will now be described with reference to the accompanying drawings, particularly a liquid crystal display device. As shown in FIG. 1 and FIG. 2, the liquid crystal display device comprises a flat panel liquid crystal display panel 1 which is substantially open, Ί 129328.doc 200905340. The liquid crystal display panel 1 includes a pair of electrode substrates having electrodes (i.e., the array substrate 3 and the opposite substrate 4), and a liquid crystal layer 5 held between the array substrate 3 and the opposite substrate 4. In a state in which a predetermined gap for holding the liquid crystal layer 5 is formed between the array substrate 3 and the opposite substrate 4, the array substrate 3 and the opposite substrate 4 are attached to each other via a sealing member. In the region surrounded by the sealing member, the liquid crystal panel 1 includes an active region 6 in which the image is substantially momentarily opened. The active area 6 includes a plurality of pixels PX arranged in a matrix, and a plurality of signal supply lines for supplying various signals required to drive the respective pixels ρ. The array substrate 3 is formed by using a light transmissive insulating substrate 81 (e.g., a glass substrate). On a main surface of the insulating substrate 8A in the active region 6 (i.e., on the surface facing the liquid crystal layer 5), the array substrate 3 includes a plurality of scanning lines γ〇, 2, 3, ... extending in the column direction of the pixel ρχ. m), a plurality of signal lines X (1, 2, 3, . . . , n) extending in the row direction of the pixel ρ , and a storage capacitor line for forming the storage capacitor Cs are used as signal supply lines. The scanning line Y and the signal line are arranged on mutually different layers via an insulating layer. Further, in the active region 6, the array substrate 3 is included in and including

&lt;Tanmei踝Y in the region intersecting the signal line X and the pixel electrode connected to the switching elements 7

The semiconductor layer 7SC is arranged to cover a germanium film transistor (TFT). Switching a gate electrode 7G and a source electrode insulating substrate 81 to an undercoat layer 82 129328.doc 200905340. The semiconductor layer 7SC is formed of, for example, a polycrystalline film or an amorphous film. The bottom layer 82 is formed of, for example, a gasified stone film (_4) or a hafnium oxide film (Si 2 ). The semiconductor layer 7SC is covered with a gate insulating film. θ The gate electrode 7G is disposed on the gate insulating film 83. The gate electrode 7G is electrically connected to the associated scan line γ (or integrated with the scan line γ). The gate insulating film 83 is formed of, for example, a oxidized stone film. The gate electrode 7G is covered with an interlayer insulating film (first insulating layer) 84. The source electrode 7S and the drain electrode 7D are arranged on the interlayer (four). The source electrode 7S is brought into contact with a source region of the semiconductor layer 7SC via a contact hole 85 passing through the gate insulating film 83 and the interlayer insulating film 84 and electrically connected to the associated signal line X (or integrated with the signal line) The formation of the electrodeless electrode 7D is in contact with a drain region of the semiconductor layer 7SC via a contact hole % passing through the gate insulating film 83 and the interlayer insulating film 84. The interlayer insulating film 84 is formed of, for example, an inorganic material. For example, a nitride film or a monoxide film. The source electrode (4) is not covered with a protective electrode (second insulating layer) 87. The protective insulating film 87 is made of (for example, an inorganic material (for example, nitrogen). The ruthenium film or ruthenium oxide or an organic material such as a resin is formed. The pixel electrode 8 is disposed on the protective insulating film 87. The pixel electrode 8 is electrically connected to the ruthenium via a contact hole 88 passing through the protective insulating film 87. The electrode electrode 叩 Γ 在 在 在 选择性 选择性 选择性 选择性 选择性 选择性 选择性 选择性 选择性 选择性 选择性 选择性 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ' ' ' ' ' ' ' ' ' ' ' ' ) formed. The other party is in bad condition Selectively reflecting the ambient light incident from the opposite substrate 4 side or a reflective liquid crystal display device displaying an image from the light incident from the front surface of the substrate 129328.doc 200905340, the pixel electrode 8 is electrically reflected by a light. The material is formed, for example, aluminum (Ai). The alignment electrode 89 for controlling the alignment of the liquid crystal molecules contained in the liquid crystal layer 5 covers the pixel electrode 8. By using a light transmissive insulating substrate 91 (for example, a glass substrate) The opposite substrate 4 is formed. In the active region 6, the opposite substrate 4 includes a pair of electrodes 9, which are common to all the pixels on one main surface of the insulating substrate 91 (i.e., the surface facing the liquid crystal layer 5) PX. The counter electrode 9 is formed of a light-transmitting conductive material such as ITO. The counter electrode 9 is covered with an alignment film 92 for controlling the alignment of the liquid crystal molecules contained in the liquid crystal layer 5. Color display type liquid crystal display The device includes a color filter layer CF associated with each pixel. In the example shown in FIG. 2, the color filter layer CF is disposed between the insulating substrate 9 丨 and the counter electrode 9 in the opposite substrate 4. The color filter layer CF is composed of a plurality of colors (for example, three primary colors: red (R), green, and blue (B)) are formed of a colored resin material, and a red resin, a green resin, and a blue resin are disposed in association with the red pixel, the green pixel, and the blue pixel, respectively. The color filter layer CF is disposed on the side of the array substrate 3. The pixel electrode 8 of the plurality of pixels PX is opposed to the opposite electrode 9 and formed by an unillustrated spacer (for example, integrated with one of the substrates) In a state in which a predetermined gap is formed between the array substrate 3 and the opposite substrate 4, the array substrate 3 and the opposite substrate 4 are arranged. The liquid crystal layer 5 is sealed by the array substrate 3 and the opposite substrate. The liquid crystal composition in the gap between the four layers is formed. Further, the outer surface of the array substrate 3 and the opposite substrate 4 has an optical element including a pair of polarizer plates, and the polarization direction thereof is based on the liquid crystal layer 5 I29328.doc •10-200905340 Feature settings. The liquid crystal display panel includes a first connecting section 31 and a second connecting section 32' which are disposed on an outer peripheral portion 1 outside the active area 6. The first connection portion 31 includes a plurality of contact pads that are connected to a -drive 1 (: wafer) that can be used as a signal supply source. The second connection portion ^ includes a plurality of terminals that can be connected to be used as a signal Supply-source-printed printed circuit (FPC). In the example shown in Figure i, 'the first connecting portion 31 and the second connecting portion 32 are arranged on the extending portion of the array substrate 3 from above, the extending portion is from The end portion of the opposite substrate 4 extends from the outside to the outside. The scanning lines Y (1, 2, 3, ..., m) arranged in the active area ❹ are connected to the signal lines χ〇, 2, 3. η) is directed to the outer peripheral portion 1 and is connected to the first connecting portion η. Recently, as the thickness of the liquid crystal display panel is reduced, the thickness of the insulating substrate constituting the liquid crystal display panel 1 is declining. Because, in order to ensure the strength of the mold level, the -metal frame (10) is used to reinforce the liquid crystal display panel 1' as shown in Fig. 2. The inventors have analyzed the factors of display defects that may occur in the case of performing an antistatic discharge (ESD) durability test in this modular form. The inventors have conducted various studies on this phenomenon. The inventors have found that when static electricity is applied from the outside, the electric charge reaches the liquid crystal display panel side surface ' of the liquid crystal display panel and enters the conductive layer of the array substrate 3, in particular: with: supply from the array substrate - predetermined potential (common potential) A power supply line 250 to the counter electrode 9, and this is a factor in the occurrence of wire breakage. In other words, the charge tends to enter the power supply section 260 in the line 250 of the power supply that is in contact with the conductive component, since the power supply section 260 has exposure to the surface of the array substrate 3 and • 2M_. cfl* that extends up to the end of the substrate. The power supply line 250 is arranged in a frame-shaped shape along the outer periphery of the active area 6. Specifically, in the example shown in Fig. 1, the power supply line 250 extends substantially parallel to the three sides so as to surround the rectangular active area 6' and connect the end of the power supply line 250 to the second connecting portion 32. A portion of the power supply line 250 extends to one end of the array substrate 3 and constitutes a power supply section 260. The power supply line 25 is electrically connected to the counter electrode 9 via a conductive member 3A in contact with the power supply section 260. The structure of the power supply line 250 including the power supply section 26 will now be described in detail. Specifically, as shown in FIG. 3 and FIG. 4, the array substrate 3 includes a first conductive layer M1; a second conductive layer M2 disposed above the interlayer insulating film covering the first conductive layer M1; and is disposed on the cover A third conductive layer M3 on the protective insulating film 87 of the second conductive layer 112. The first conductive layer Μ1 includes, for example, one layer of the scanning line Y and is formed of, for example, molybdenum tungsten (M〇w). The second conductive layer M2 includes, for example, a layer of scanning turns, and is formed of a multilayer body of molybdenum (m〇)/aluminum (A1)/molybdenum (Mo). The third conductive layer M3 includes, for example, one layer of the pixel electrode 8 and is formed of, for example, IT〇. Attention is now paid to the upper right portion of the liquid crystal display panel 1 in which the power supply section 260 is disposed. The power supply line 25A includes a first line (first island pattern) Ρ1 that is one of the bottom layers of the power supply section 260 and extends substantially parallel to the signal line ;; substantially parallel to the first line? 1 a second line (second island pattern) P2 of line L between the active area 129328.doc -12- 200905340; 盥 the first line is spaced apart and substantially parallel to the scanning line γ - the first a three-line (second island-like pattern) P3, and a fourth line (fourth island shape) extending upward to the end of the array substrate 3 and contacting and electrically connecting the first material pl, the second line, and the third line (four) Pattern) P4. The first line P1 and the second line P3 are included in the first conductive layer and are formed of the same material as, for example, the scanning line γ. The second line p2 includes: a second material layer M2 and is of the same material shape as, for example, the signal line X: the fourth line P4 is included in the third conductive layer (10) and is composed of (10), for example, the electrode 8 The same material is formed. The fourth line p4 is exposed to the array substrate 3: surface and a portion of the fourth line P4 is used as the power supply section 260. The power supply lines (10) of the subsequent island-like patterns are very likely to reduce the capacitance to counteract static electricity. This is because the power supply lines 250 are arranged over a relatively wide area.

The second power supply has a power supply line center. The static electricity from the array substrate == line Ρ4 flows along the surface of the fourth line ρ4. At the domain relative power supply section, the zone portion of the fourth line Ρ4!MxV: the area between the second line Ρ2 and the third line Ρ3 is relatively small. Due to this configuration, it is concentrated at this point (10) to cause the wire to break. In addition, it is included in the third, := in the upper left portion of the liquid crystal display panel 1 'electrically connected by a pattern of island patterns to connect a plurality of island-shaped wire ruptures, how easy to concentrate - part will also produce similar 129328 .doc -13· 200905340 The wire breakage of the fourth line P4 means that the wire of the power supply line 25 is broken. One of the common potentials supplied from the second connection portion 32 is not supplied to the power supply section 206 and this is a factor indicating the occurrence of a defect. Some examples of the power supply structure according to this embodiment will now be described. (First Structural Example) In the first structural example, as shown in FIG. 50, the power supply line i includes the first line P1, and the first line pi is separated from the first line pi, and extends to the array. a power supply contact PD of the end of the substrate 3 and electrically connected to the first line n, and a bridge line PB that is in contact with the power supply contact and electrically connected to the first line (four) and the second line p2, The Yu Yu system is formed in the first material i-Wa Vhm τ and Tian Xing (for example) sweeps the same material. The first -, _ is substantially parallel to the signal line = extension. The first line P1 should preferably extend to the second connection terminal T. ~ The first line P2 is the same material as the 筮_道线X. 2 t and extended by a signal line 之间 between, for example, the signal Μ and the action path substantially parallel to the first line C domain 6. Supply-predetermined potential (for example, a line for common system). The pixel power supply contact PD and the bridge line ρβ in the main action &amp; field are included in the middle and are electrically conductive by, for example, pixel electrodes. The layer M3 mat is formed via the layer formed from the core. The power supply contacts '· , ^ a contact in the protective insulating film 87 129328.doc - J4 · 200905340 The hole is in contact with the first line P1. Exposing the power supply to the surface of the array base 3 and serving as the power supply section 2, _ contacting the bridge line PB with the first line P1 via a contact hole formed in the interlayer insulating 臈 84 and the protective insulating layer A, The first line P2 is contacted via a contact hole formed in the protective layer 87. The power supply line 250 is electrically connected to the counter electrode via a component disposed on the power supply contact pad PD. In the power supply having the above structure, the static electricity entering the power supply contact pad PD from the end of the array substrate 3 flows along the surface of the power supply contact pad PD. At this time, since the power supply contact pads PD formed in the same layer are separated from the bridge line PB, it is possible to suppress the connection portion between the first line ρι and the second line 中 in the bridge line PB. The direct concentration of a large amount of charge. In other words, the charge that has entered the power supply contact pad PD flows into the first line ρι and is dispersed, and then the partial charge flows into the second line 经由 via the bridge line PB. Since the charge can be dispersed as described above, it is possible to suppress the breakage of the wire of the power supply line 25A. Therefore, the electrostatic pressure characteristic of the power supply line 25A can be improved and the power can be supplied from the power supply line 25 to the counter electrode 9 so that the occurrence of liquid crystal defects can be prevented, and a highly reliable liquid crystal display can be provided. Device. The reason for the occurrence of the wire breakage in consideration of the above-mentioned connecting portion Ρ4χ is that the relatively narrow region of the connecting portion Ρ4χ between the 苐 line Ρ2 and the second line =3 is 4, and the charge collecting towel is on the connecting portion ρ4χ. The connecting portion ρ4χ becomes narrow because the widths of the second line Ρ2 and the third line ρ3 are small. In this structural example, there is no wire breakage due to the concentration of charge on the connected portion. 129328.doc -15- 200905340. Therefore, the redundancy of the second squeegee and the second line Ρ3 can be reduced, and the face of the lines can be reduced. This can enhance reliability and reduce the frame size. With the structure in which the first line P1 extends to the terminal τ, the electric charge can be guided to the signal supply source side via the first connecting portion 32. The power supply section 26 in contact with the conductive member 300 has a problem that the portion of the power supply portion 26G is located at the end portion of the array substrate 3 and is exposed to the surface, so metal corrosion is liable to occur. On the other hand, an indium oxide-based metal (e.g., ruthenium) which is used for a power supply contact pad and which is the same material as the pixel electrode material has such characteristics that corrosion is less likely to occur. Therefore, the first conductive layer M1 can have corrosion resistance characteristics by coating the first conductive layer Mi formed of a perishable metal with, for example, ΙΤ0. Therefore, in the power supply section 260 of the present structural example and each of the plurality of structural examples, the first wiring ρ is not exposed and the conductive member 3 is connected via the third conductive layer M3 formed of, for example, ITO. Go to the first line pi to prevent the first line? 1 Hussein. In other words, from the viewpoint of corrosion, it is preferable to prevent the conductive member 3〇〇 from directly contacting the first line ρι. In these structural examples, the third conductive layer M3 can be realized without increasing the number of program steps because the third conductive layer M3 is formed in the same step as the formation of the pixel electrode. (Second Structural Example) In the description of the second and subsequent structural examples, the same structural portions are denoted by the same reference numerals and the detailed description thereof will be omitted. In the second structural example, as shown in FIGS. 6A and 6B, a power supply for 129328.doc -16 - 200905340 should include a line 25G that is substantially parallel to the signal line — - the first line P1; substantially parallel a first line P2 extending from a signal line between the first line (four) and the active area 6; a third line p3 spaced apart from the first line P1 and extending substantially parallel to the scanning line Y; extending to the array substrate 3 One end P is electrically connected to a power supply contact of the first line ρι; and a bridge is separated from the power supply 触 contact pad PD and contacts and electrically connects the first line Η, the second line P2 and the second line p3 line. In the second structural example, the second line (4) is placed on both sides of the active area and the second line p3 is electrically connected to the pair of second lines. Thereby, a predetermined potential (e.g., - common potential) can be supplied from the both sides of the active region 6 to the respective pixels. The first line P1 and the third line P3 are included in the first conductive layer. The first and the in-path P2 are included in the second conductive layer M2. The power supply contact and the bridge line PB are included in the third conductive layer M3. The power supply contact is brought into contact with the first line ρι via a contact hole formed in the interlayer insulating film Μ and the protective insulating film P. The power supply is exposed to the surface of the array substrate 3 and used as the power supply section 260 described above. The bridge line PB is brought into contact with the first line P1 via a contact hole formed in the interlayer insulating film M and the edge ribs, and is passed through a contact hole formed in the interlayer insulating film 84 and the protective insulating film 87 and the third. The line p3 is in contact and is also brought into contact with the second line P 2 via a contact hole formed in the protective insulation (4).

The power supply line 250 is electrically connected to the counter electrode via the electrical component. Placed on the power supply contact pad PD - in the power supply I29328.doc 200905340 line 250 having the above structure, the charge entering the power supply contact yang flows into the first line P1' and is scattered, and part of the charge is bridged The line turbulently flows into the second line P2 and the second line p3. Therefore, there is a complication in the PB, ... which suppresses the direct concentration of a large amount of charge in the bridge line PB: the connection portion between the line P2 and the third line p3. Since the charge can be dispersed, the same advantageous effects as the first example can be obtained. (Third Structure Example) As shown in Fig. 7, the second structure example is different from the previous structure example, in which the third line P3 contains a plurality of segments and the bridge line PB correspondingly includes a plurality of segments. Forming the power supply line 25 (4) other patterns (the first line, the second line, and the power supply contact pad) and the patterns in the first structural example

with. V In the example of Fig. 7, the third line p3 includes a first segment η 1 , a second segment P32 and a third segment P33 which all extend over a plurality of lines substantially parallel to the scanning line Y. The third segments 1 to P33 are included in the first conductive layer in the third line p3, and are formed of the same material as, for example, the scanning line γ and are spaced apart from each other. The first segment ρ3ι is farthest from the active region 6, the third segment P33 is closest to the active region 6, and the second segment P32 is disposed between the first segment p31 and the third segment p33. The bridge line PB includes a first segment pB1 that contacts and electrically connects the first line ρ with the first segment pu of the third line P3; and contacts and electrically connects the second segment pB2 of the first line P1 and the second segment P32; Contacting and electrically connecting the first line P1, the third segment p33, and the second line? 2 - the third fragment PB3. In the bridge line pb, the three segments PB1 to PB3 are included in the third conductive layer M3 of 129328.doc -18-200905340, and are separated from each other by, for example, 。. The material of the pixel electrode 8 is formed in the same manner as the power supply line 25A having the above structure, and the charge entering the power supply contact pad PD flows into the _ line. 1 and disperse the first segment of the bridge _ to flow into the first Π P3 1 of the third line (4), and also into the segment Ρ 32 via the second slice / 2/, L and via the third segment PB3 and the third Fragment p33 flows into the second line. Therefore, in the (four) three-structured model, it is of course possible to obtain the same advantageous effects as the first-structure example, and the sample charge can be more dispersed than the first-纟 乂 乂, . Further, the inner segment (third segment) flowing into the vicinity of the action region 6 can be lowered. (Fourth Structure Example) The fourth structure example is different from the above-described prior art example, in which a fourth wiring material including a power supply contact pad PD is arranged along the outer periphery of the array substrate 3 and extended to the connection. To (4) the terminal τ of the supply source. In the example shown in Figure 8, the third line? 3 includes a first segment ρ3ι, a first slice P32, and a second segment p33 extending over a plurality of lines substantially parallel to the scan line γ. In the third line, the three pieces W31 to P33 are all contained in the first conductive layer (4). The first segment is called at the position farthest from the active area 6. Bridge = line PB includes a first segment PB1 that contacts and electrically connects the first line ρι with the third line P, 3 of the second segment P32; and contacts and electrically connects the younger line P1, the second Η PP q, also &gt ; 々, brother a slave P33 and a second segment P2 of the second line p2. In the bridge line pB, both segments pm and 叩2 are included in the third 129328.doc -19· 200905340 conductive layer M3. The fourth line P4 includes a power supply contact pad pD, and the i-way P1 extends substantially parallel to the signal line X to cover the first line P1 via the interlayer 4 line and the protective insulating film 87. The fourth line; the path IM is electrically connected via a plurality of contact holes passing through the interlayer insulating film M at the intermediate portion to the line. The fourth terminal _ distal end = the terminal T of the second connection portion 32 The fourth line P4 contacts the first segment 第三 of the third line p3 and extends on the scan line γ to cover the first segment P31. The fourth line two-segment-segment PM passes through the middle portion. The interlayer insulating film 电 is electrically connected to the plurality of contact holes of the protective insulating film 87. The fourth line is scribbled in the third conductive layer M3. The other patterns constituting the power supply line 250 have the pattern in the third structural example. In the power supply line 25A having the above structure, when the electric charge enters the power supply contact pad PD of the four lines P4, the electric charges are not directly flowed, and the fourth line P4 is more disposed on the side of the active area 6. In the other patterns, charge can be introduced to the signal supply source side via the second connection portion 32. Therefore, the wire of the power supply line 250 can be prevented from being broken, and the same advantageous effects as the first structural example can be obtained. Structural example) As shown in FIG. 9, in the fifth structural example, a power supply line 25A includes a first line ρ1 extending substantially parallel to the signal line X; a second line P2 disposed to surround the active area 6; substantially Parallel to the scanning line 129328.doc •20·200905340 extended-third line P3; a power supply contact pad PD extending to the end of the array substrate 3 and in contact with the first line pi; and contact and electrical connection - line Pin Road and third material P3 - pure line PB. In the example shown in Figure 9, the second line P2 is arranged more on the active area 6 than the first line ρι and the third line Specifically, the second line is parallel to the line X extending between the first line (4) and the working area 6, and the real line f extends parallel to the scanning line Y between the third line p3 and the active area 6. The second line P2 is included in the second conductive layer M2. The third line P3 includes a first slice slave P31 extending substantially parallel to the scan line Y, and a second segment P32. The first segment P31 is disposed away from The farthest position of the active area 6. The second segment p32 is arranged in the first segment called the second Between the lines P2. In the third line (four), like the first line (1) member, both segments Ρ_Ρ32 are included in the first conductive layer (4). The bridge line PB includes contacts and electrically connects the first line ρι and the third line a first segment PB1 of the first segment P31; and a second segment pB2 contacting and electrically connecting the line pi with the second segment P32; and a third contacting and electrically connecting the first line P1 and the second line p2 Fragment pB3. Similar to the power supply contact pad pD in the bridge line PB, the two segments 叩1 and PB2 white are included in the third conductive layer (4) and are separated from the power supply contact pad. : Provide redundancy to the first line P2 The portion of the line 5 that is substantially parallel to the signal line X extending from the line P2 is covered by the two-fifth line P5 included in the third conductive layer M3, and is brought into contact at a plurality of positions. In addition, in order to apply redundancy to the second segment p32 and the second line 平行 which are parallel to each other, the 桥-bridge pattern P6 included in the third conductive layer M3 will be the second segment 129328.doc -21 - 200905340 P32 The second line P2 is in contact at a plurality of positions. The power supply contact p D may be formed integrally with other patterns, for example, the first segment pBi and the second segment PB2 of the bridge line PB included in the third conductive layer M3. . -

In the power supply line 25A having the above structure, the electric charge entering the power supply contact pad PD flows into the first line P1 and is dispersed. Part of the charge flows into the first segment P31 of the third line p3 via the first segment PB1 of the bridge circuit PB, and also flows into the second segment η] via the second segment pB2, and flows into the second portion via the third segment PB3. Line (four). Thereby, the wire of the power supply line 250 can be prevented from being broken, and the same advantageous effects as the first structural example can be obtained. (Sixth Structural Example) As shown in FIG. 10, the sixth structural example is different from the fifth structural example in which at least a portion of the second line P2 is disposed to cover the first line P1 via the interlayer insulating film 84, and it extends to Connect to the terminal of the signal supply. In the example shown in FIG. 10, the second line P2 extends substantially parallel to the signal line x between the first line P1 and the active area 6, and is parallel to the third line P3 and the active area 6 The scanning line γ extends. Further, the second line Ρ 2' is disposed so as to be in contact with the 'th line ρι' and substantially parallel to the good line X to extend and cover the first line P1. The second line 卩2 is connected to the terminal τ of the second connecting portion 32. To provide redundancy to the first line 扪 and the second line Ρ2, the first line P1 and the second line ρ2 are brought into contact at a plurality of positions by the bridge pattern Ρ7 included in the third conductive layer Μ3. The second line Ρ 2 is included in the second conductive layer Μ 2 . 129328.doc -22· 200905340 The other patterns constituting the power supply line 250 have the same structure as the pattern in the fifth structural example. In the power supply line 25A having the above structure, even if electric charges enter the power supply contact pad PD, the wire of the power supply line can be prevented from being broken. 'The connection with the signal supply source can be ensured via the second connection portion 32, and the connection can be stably Supply - common potential to the counter electrode. Because of this, the same advantageous effects as in the first structural example can be obtained. The month of the month is not limited to the specific embodiments described above. In fact, the constitutive elements can be modified (4) The essence of the present invention [the structural elements disclosed by the time can be implemented to implement various inventions. For example, all of the structural elements disclosed in the (IV) h example may omit certain structural elements. Further, structural elements in different specific embodiments may be combined as appropriate. BRIEF DESCRIPTION OF THE DRAWINGS The drawings, which have been incorporated and constitute the specification, have a specific description of the invention.

C &quot; II, along with the general description given above and the detailed description of the specific embodiments given above, are used to illustrate the principles of the invention. Figure 1 is a schematic view showing the structure of a liquid crystal display of a device according to one embodiment of the present invention; Figure 2 is a schematic view showing the liquid crystal display shown in Figure 1. One section structure; &amp; area in the heart panel of the day; Figure 3 is a plan view showing the structure of the power supply line including the power supply area in the panel of the liquid crystal display section shown in Fig. 1; The system shows the power supply on the array substrate side of one of the electric and ## A boards of the liquid shown in Fig. 3, and the sectional view of the structure of the original supply line; 129328.doc •23· 200905340 Fig. 5 A system is not applicable A plan view of a first structural example of a power supply structure of a liquid crystal display device according to a specific embodiment of the present invention; FIG. 5B is a view showing a structure of a power supply line on the array substrate side in the first structural example shown in FIG. 5A Figure 6A is a plan view showing a second structural example of a power supply structure applicable to a liquid crystal display device according to a specific embodiment of the present invention; Figure 6B is shown in the second structural example shown in Figure 6A. Array substrate FIG. 7 is a plan view showing a third structural example of a power supply structure of a liquid crystal display device according to a specific embodiment of the present invention; FIG. 8 is a view showing that it can be applied to A plan view of a fourth embodiment of a liquid crystal display according to a specific embodiment of the present invention, and a power supply structure of the present invention; FIG. 9 is a view showing a liquid crystal display device according to a specific embodiment of the present invention. A plan view of a fifth structural example of a power supply structure; and FIG. 10 is a plan view showing a sixth structural example of a power supply structure applicable to a liquid crystal display device according to a specific embodiment of the present invention. [Main component symbol description] 1 Display panel 3 Array substrate 3A Extension 4 Counter substrate 4A End 5 Liquid crystal layer 6 Interaction area 129328.doc -24- 200905340 7

7D

7G

7S

7SC 8 9 10 C 31 32 81 82 83 84 85 86 ( 87 88 89 91 92 250 260 300 Switching element electrodeless electrode gate electrode source electrode semiconductor layer pixel electrode counter electrode outer peripheral portion first connection section second Connecting section insulating substrate undercoating gate insulating film interlayer insulating film contact hole contact hole protective insulating film contact hole alignment film light transmitting insulating substrate alignment film power supply line power supply section conductive member 129328.doc -25 - 200905340

BL

CF

Ml M2 M3

' MF PI P2 (' P3 P4

P4X P5 P6 P7 P3 1 P32 i P33

PB PB1 PB2 PB3 PBX PD PX backlight unit filter, color layer first conductive layer second conductive layer third conductive layer metal frame first line second line third line fourth line connection part fifth line bridge pattern bridge pattern A segment second segment third segment bridge line first segment second segment third segment connection portion power supply touch pad pixel 129328.doc -26- 200905340 τ X (1, 2, 3 Y (1, 2, 3, ... , η), ..., m) terminal signal line scan line 129328.doc -27 -

Claims (1)

200905340 X. Patent application scope: 1. A liquid crystal display device comprising: an array substrate comprising: a first guide lightning μ, a conductive layer; and a benefit disposed on the first insulating layer covering the first conductive layer a third conductive-opposing substrate covering the second conductive layer; and a third conductive-opposing substrate disposed on the insulating layer i, comprising a 1-direction electrode; a crystal layer 'on the array substrate and the For a gap in f, and between the earthboards - the power supply line's along the display of an image, the outer perimeter is placed in the array. a pair of electrodes in the ° domain; A ', supply - predetermined potential to the power supply line including the power supply contact pad; included in 1 ^ φ a Λ s - 匕 3 at 3 hai first conductive a first layer in the layer and electrically connected to the source of the thunder source supply, and a second line included in the second conductive layer and included in the third conductive layer and electrically connected The first water channel and the first circuit-bridge circuit are electrically connected to the opposite electrode via a conductive member disposed on the power supply contact. The liquid crystal display device of the present invention, wherein the first circuit is disposed substantially in the signal line in the active region and extends to a terminal connected to the signal supply. 3. The liquid crystal display device of claim 1, wherein the second line is disposed between the active area and the first line. 129328.doc 200905340 4. The liquid-to-day display device of the claim item, wherein the power supply line further includes a first: r start ~~ ''', which is included in the first conductive layer and The scan line is arranged in the active area, and the line is electrically connected to the second line of the first line via the bridge line. 5. The liquid crystal display device of claim 4 arranged in a plurality of segments of the line, the bridge circuit comprising a plurality of segments in contact with the first segment. The liquid crystal display device of claim 1, wherein the power supply line includes an i-four line 'which is in contact with the power supply Integratedly formed and extended to a terminal connected to a signal supply. A liquid crystal display device of π, wherein the second line is disposed on the active area more than the first line and the third line in such a manner as to surround the active area. The liquid crystal display device of claim 7, wherein the second line extends to a terminal connected to a signal supply source. 129328.doc