CN103424906B

CN103424906B - Liquid crystal indicator

Info

Publication number: CN103424906B
Application number: CN201310374591.4A
Authority: CN
Inventors: 黄秋蓉; 何建国
Original assignee: Nanjing CEC Panda LCD Technology Co Ltd
Current assignee: Nanjing CEC Panda LCD Technology Co Ltd
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2016-05-25
Anticipated expiration: 2033-08-23
Also published as: CN103424906A

Abstract

The present invention discloses a kind of liquid crystal indicator, it comprises: array base palte, the color membrane substrates being oppositely arranged with array base palte, at the outer discontinuous holding wire of transmission same signal, the via hole wire being connected with discontinuous holding wire of being arranged with of the viewing area of array base palte; On color membrane substrates, be provided with conductive layer; When after array base palte and color membrane substrates laminating, described conductive layer contacts with described via hole wire and conducting, makes described discontinuous holding wire be connected conducting by described via hole wire with told conductive layer; And the material of described via hole wire and described conductive layer is ITO; Assist the discontinuous signal line of the peripheral transmission same signal of array base palte side viewing area to connect conducting by utilizing the conductive layer on color membrane substrates, no matter the cross-over connection wire on array base palte opens circuit or short circuit, can make the conducting that is connected of discontinuous holding wire, to guarantee that liquid crystal indicator normally shows.

Description

Liquid crystal indicator

Technical field

The present invention relates to liquid crystal indicator, particularly utilize the conductive layer on color membrane substrates to assist array baseThe discontinuous signal line of plate connects the liquid crystal indicator of conducting.

Background technology

Liquid crystal indicator be by the array base palte being oppositely arranged and color membrane substrates and be filled in array base palte andLiquid crystal composition between color membrane substrates. Wherein, color membrane substrates comprise colored filter substrate (CF substrate),Lightproof area is black matrix", RGB color blocking layer and a conductive layer, and this conductive layer is generally ITO (Indium-TiOxide, tin indium oxide) layer, be used for conducting public electrode current potential, the public electrode current potential of color membrane substrates side fromOn the terminal of array, input, and be transferred on color membrane substrates by the gold goal in the sealed plastic box of LCDs peripheryConductive layer. The viewing area of array base palte (Array substrate) is formed with grid line, data wire, scan lineAnd pixel cell etc., provide sweep signal at the viewing area of the array base palte promising grid line of peripheral formation and data wireHolding wire. This holding wire is to form with layer metal, and the holding wire scissors crossing of unlike signal arranges.

As shown in Figure 1, be formed with in the periphery of the viewing area of array base palte 10 unlike signal holding wire 11,Holding wire 12, holding wire 13 and holding wire 14, each holding wire arranged in a crossed manner and by with layer a metal form. WhenWhen identical two holding wires 11 will be electrically connected, can be the metal of ITO wire and interlayer by via hole wireCross-over connection wire 22 is connected holding wire 11. In the time that the cross-over connection wire 22 by interlayer is connected, easily causeBetween cross-over connection wire 22 and holding wire 12, holding wire 13 and holding wire 14 because of double-level-metal distribution produce quietDestroy, cause 22 short circuits of cross-over connection wire or cross-over connection wire 22 and holding wire 12 or holding wire 13 or holding wire14 form short circuit. Open circuit or the problem of short circuit for fear of metal cross-over connection wire 22, we can be by metal cross-over connectionWire 22 replaces to ITO cross-over connection wire 40, as shown in Figure 2, can separate the problems referred to above. But because of ITO acrossThe connection impedance that connects wire 40 is excessive, causes the problem of signal delay.

Summary of the invention

Goal of the invention: solve in prior art cross-over connection wire because of electrostatic breakdown or impedance excessive, cause cross-over connection wireShort circuit or signal delay, cause the discontinuous holding wire that transmits same signal cannot connect conducting.

Summary of the invention: in order to reach foregoing invention object, the invention provides a kind of liquid crystal indicator, it comprisesArray base palte, the color membrane substrates being oppositely arranged with array base palte, in the outer biography that is arranged with of the viewing area of array base palteThe discontinuous holding wire of defeated same signal, the via hole wire being connected with discontinuous holding wire; At color film basePlate is provided with conductive layer; When after array base palte and color membrane substrates laminating, described conductive layer and described via hole are ledLine contacts and conducting, makes described discontinuous holding wire by described via hole wire and the conductive layer of tellingConnect conducting.

Further, the material of described via hole wire and described conductive layer is ITO;

Further, described array base palte also comprises the cross-over connection wire being electrically connected mutually with described via hole wire,By described via hole wire and cross-over connection wire, make described discontinuous signal connect conducting;

Further, the material of described cross-over connection wire is identical with the material of described discontinuous holding wire.

Further, the material of described cross-over connection wire is ITO.

Beneficial effect: by utilizing the peripheral biography of the conductive layer assistance array base palte side viewing area on color membrane substratesThe discontinuous signal line of defeated same signal connects conducting, and no matter the cross-over connection wire on array base palte opens circuit or be shortRoad, can make the conducting that is connected of discontinuous holding wire, to guarantee that liquid crystal indicator normally shows.

Brief description of the drawings

Fig. 1 is metal cross-over connection wire schematic diagram in prior art;

Fig. 2 is ITO cross-over connection wire schematic diagram in prior art;

Fig. 3 is the LCD device structure schematic diagram of the first embodiment of the present invention;

Fig. 4 is the LCD device structure schematic diagram of the second embodiment of the present invention;

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only forThe present invention is described and is not used in to limit the scope of the invention, after having read the present invention, those skilled in the artThe amendment of the various equivalent form of values of the present invention is all fallen within to the application's claims limited range.

In order to solve the problem of prior art, the invention provides a kind of liquid crystal indicator, if Fig. 3 is the present inventionThe LCD device structure schematic diagram of the first embodiment. This liquid crystal indicator comprises: array base palte, withThe color membrane substrates of the basic box relatively of array and be filled in array base palte and color membrane substrates between liquid crystal composition. ItsIn, color membrane substrates is included in the black-matrix layer (BM layer), the RGB that on color film glass substrate 50, form successivelyColor blocking layer, R color blocking layer R, G color blocking layer G, B color blocking layer B, and a conductive layer 55. Wherein, conductionLayer 55 is ITO layer. In the peripheral side of the viewing area of array base palte, on array glass substrate 10, be formed asThe grid line in array basic display district and data wire provide many signal line of sweep signal, holding wire 11, signalLine 12, holding wire 13 and holding wire 14 etc., the signal difference that each holding wire is carried, each holding wire is sameLayer metal forms, and arranged in a crossed manner, and the holding wire of transmission same signal is discontinuous setting. Holding wire 11 isDiscontinuous setting. In many signal line, form insulating barrier 20, and on insulating barrier 20, form metal cross-over connection and leadLine 22, the material of metal cross-over connection wire 22 can be identical with the material of holding wire, forms insulation on cross-over connection wireLayer 30. Want to make the discontinuous signal line 11 that transmits same signal to be connected, respectively at discontinuous holding wire11 and metal cross-over connection wire 22 on offer via hole, and on via hole and via edges generate transparency conducting layer be shapeBecome via hole wire 35, this transparency conducting layer is ITO layer. Via hole wire 35 respectively with holding wire 11 and metalCross-over connection wire 22 is connected, and makes discontinuous holding wire by via hole wire 35 and metal cross-over connection wire 2211 are connected and conducting. After color membrane substrates and array base palte are to box, via hole wire 35 is led with color membrane substrates55 contact of electricity layer connect, thereby holding wire 11 also can be by the conductive layer on via hole wire 35 and color membrane substrates55 conductings that are connected. Both made when metal cross-over connection wire 22 because of with holding wire 12, holding wire 13 and holding wireBetween 14, produce electrostatic breakdown, open circuit or short-circuit conditions, when holding wire 11 cannot be connected. Do not connectThe conducting that just can be connected with the conductive layer 55 on color membrane substrates by via hole wire 35 of continuous holding wire 11.By above-mentioned design, can make to guarantee that the connection of discontinuous holding wire is perfectly safe.

The present invention gives the second embodiment, and different from the first embodiment is that metal cross-over connection wire 22 is replacedBe changed to ITO cross-over connection wire 40, the structural representation of liquid crystal display as shown in Figure 4. On insulating barrier 20, establishPut ITO cross-over connection wire 40, offer via hole at discontinuous holding wire 11, and on via hole, generate transparent leadingElectricity layer forms via hole wire 37, and this transparency conducting layer is ITO layer. Via hole wire 37 and ITO cross-over connection wire40 are connected. Discontinuous holding wire 11 is connected and leads with ITO cross-over connection wire 40 by via hole wire 37Logical. After color membrane substrates and array base palte are to box, via hole wire 37 also will with the conductive layer of color membrane substrates 57Contact connects, thereby holding wire 11 also can be connected with the conductive layer 57 on color membrane substrates by via hole wire 37Connect conducting. Because considering that conductive layer 57 is ITO material, in the time of long distance conduction, impedance meeting is excessive, causes and leadsPower is more weak, therefore in the region of the corresponding cross-over connection wire 40 of color membrane substrates, be provided with metal black-matrix layerThe metal BM whole corresponding region of tiling, to can assist conductive layer 57 to grow distance conduction. To guarantee notThe conducting that is connected with conductive layer 57 by via hole wire 37 of continuous signal 11. Both made when ITO cross-over connection wire40 is much because of impedance, causes signal delay, while causing holding wire 11 to be connected. Discontinuous signalLine 11 conducting that can also be connected with the conductive layer 57 on color membrane substrates by via hole wire 37.

By utilizing the identical letter of peripheral transmission of the conductive layer assistance array base palte side viewing area on color membrane substratesNumber discontinuous signal line connect conducting, no matter the cross-over connection wire on array base palte opens circuit or short circuit, canMake the conducting that is connected of discontinuous holding wire, to guarantee that liquid crystal indicator normally shows.

Claims

1. a liquid crystal indicator, the color membrane substrates that it comprises array base palte, is oppositely arranged with array base palte,The viewing area of array base palte outer be arranged with the discontinuous holding wire of transmission same signal, with discontinuous signalThe via hole wire that line is connected; On color membrane substrates, be provided with conductive layer; It is characterized in that: when array base palte and coloured silkAfter film baseplate-laminating, described conductive layer contacts with described via hole wire and conducting, makes described discontinuousHolding wire be connected conducting by described via hole wire with told conductive layer; Described array base palte also comprisesCross-over connection wire with described via hole wire is electrically connected mutually, by described via hole wire and cross-over connection wire, makesDescribed discontinuous holding wire connects conducting.

2. liquid crystal indicator according to claim 1, is characterized in that: described via hole wire and described inThe material of conductive layer be ITO.

3. liquid crystal indicator according to claim 1, is characterized in that: the material of described cross-over connection wireIdentical with the material of described discontinuous holding wire.

4. liquid crystal indicator according to claim 1, is characterized in that: the material of described cross-over connection wireFor ITO.