CN103424906A

CN103424906A - Liquid crystal display device

Info

Publication number: CN103424906A
Application number: CN2013103745914A
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: 2013-12-04
Anticipated expiration: 2033-08-23
Also published as: CN103424906B

Abstract

The invention discloses a liquid crystal display device. The liquid crystal display device comprises an array substrate and a color film substrate arranged opposite to the array substrate, wherein discontinuous signal lines for transmitting same signals and via hole guide lines connected with the discontinuous signal lines are arranged on the periphery of a display area of the array substrate; a conductive layer is arranged on the color film substrate; after the array substrate is attached to the color film substrate, the conductive layer is contacted and communicated with the via hole guide lines, so that the discontinuous signal lines are connected and communicated with the conductive layer through the via hole guide lines; and the via hole guide lines and the conductive layer are made of ITO (Indium-Ti Oxide). The conductive layer on the color film substrate is utilized for assisting the discontinuous signal lines for transmitting same signals on the periphery of the display area of the array substrate in connecting and communicating, and the discontinuous signal lines are connected and communicated no matter bridging conducting wires on the array substrate are disconnected or short-circuited so as to ensure normal display of the liquid crystal display device.

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 the discontinuous signal line of array base palte to connect the liquid crystal indicator of conducting.

Background technology

Liquid crystal indicator by the array base palte be oppositely arranged and color membrane substrates and be filled in array base palte and color membrane substrates between liquid crystal form.Wherein, color membrane substrates comprises that colored filter substrate (CF substrate), lightproof area are black matrix", RGB color blocking layer and a conductive layer, this conductive layer is generally ITO(Indium-Ti Oxide, tin indium oxide) layer, be used for conducting public electrode current potential, the public electrode current potential of color membrane substrates side is inputted from the terminal of array, and is transferred to the conductive layer on color membrane substrates by the gold goal in the sealed plastic box of LCDs periphery.The viewing area of array base palte (Array substrate) is formed with grid line, data line, sweep trace and pixel cell etc., forms the signal wire that promising grid line and data line provide sweep signal in the periphery, viewing area of array base palte.This signal wire is to form with layer metal, and the signal wire scissors crossing of different signals arranges.

As shown in Figure 1, be formed with signal wire 11, signal wire 12, signal wire 13 and the signal wire 14 of unlike signal in the periphery of the viewing area of array base palte 10, each signal wire is arranged in a crossed manner and by forming with a layer metal.When identical two signal wires 11 will be electrically connected, the metal cross-over connection wire 22 that can be ITO wire and interlayer by the via hole wire is connected signal wire 11.When the cross-over connection wire 22 by interlayer is connected, easily cause between cross-over connection wire 22 and signal wire 12, signal wire 13 and signal wire 14 because the double-level-metal distribution produces quiet destruction, cause cross-over connection wire short circuit 22 or cross-over connection wire 22 and signal wire 12 or signal wire 13 or signal wire 14 to form short circuits.For fear of metal cross-over connection wire 22, open circuit or the problem of short circuit, we can replace to ITO cross-over connection wire 40 by metal cross-over connection wire 22, as shown in Figure 2, can separate the problems referred to above.But excessive because of the connection impedance of ITO cross-over connection wire 40, cause the problem of signal delay.

Summary of the invention

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

Summary of the invention: in order to reach the foregoing invention purpose, the invention provides a kind of liquid crystal indicator, the color membrane substrates that it comprises array base palte, is oppositely arranged with array base palte, the outer discontinuous signal wire of transmission same signal, the via hole wire be connected with discontinuous signal wire of being arranged with in the viewing area of array base palte; Be provided with conductive layer on color membrane substrates; After array base palte and color membrane substrates laminating, described conductive layer contacts with described via hole wire and conducting, makes described discontinuous signal wire be connected conducting by described via hole wire with told conductive layer.

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 be electrically connected mutually with described via hole wire, by described via hole wire and cross-over connection wire, makes described discontinuous signal connect conducting;

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

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

Beneficial effect: by utilizing conductive layer on color membrane substrates, assist the discontinuous signal line of transmission same signal of the periphery of array base palte side viewing area to connect conducting, 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 signal wire, normally show to guarantee liquid crystal indicator.

The accompanying drawing explanation

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;

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

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

Embodiment

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

In order to solve the problem of prior art, the invention provides a kind of liquid crystal indicator, as Fig. 3 LCD device structure schematic diagram that is the first embodiment of the present invention.This liquid crystal indicator comprises: array base palte, with the color membrane substrates of the basic relative box of array and be filled in array base palte and color membrane substrates between the liquid crystal composition.Wherein, color membrane substrates is included in black-matrix layer (BM layer), the RGB color blocking layer formed successively on color film glass substrate 50, R color blocking layer R, G color blocking layer G, B color blocking layer B, and a conductive layer 55.Wherein, conductive layer 55 is the ITO layer.Peripheral side in the viewing area of array base palte, form the grid line in array basic display district and many signal line that data line provides sweep signal on array glass substrate 10, signal wire 11, signal wire 12, signal wire 13 and signal wire 14 etc., the signal difference that each signal wire is carried, each signal wire is to form with layer metal, and arranged in a crossed manner, the signal wire of transmission same signal is discontinuous setting.Signal wire 11 is discontinuous setting.Form insulation course 20 on many signal line, and form metal cross-over connection wire 22 on insulation course 20, the material of metal cross-over connection wire 22 can be identical with the material of signal wire, forms insulation course 30 on the cross-over connection wire.Want to make the discontinuous signal line 11 that transmits same signal to be connected, offer via hole respectively on discontinuous signal wire 11 and metal cross-over connection wire 22, and forming via hole wire 35 with via edges generation transparency conducting layer on via hole, this transparency conducting layer is the ITO layer.Via hole wire 35 is connected with metal cross-over connection wire 22 with signal wire 11 respectively, by via hole wire 35 and metal cross-over connection wire 22, discontinuous signal wire 11 is connected and conducting.After color membrane substrates and array base palte are to box, via hole wire 35 is connected with conductive layer 55 contacts of color membrane substrates, the conducting thereby signal wire 11 also can be connected with conductive layer 55 on color membrane substrates by via hole wire 35.Both made when metal cross-over connection wire 22 because of and signal wire 12, signal wire 13 and signal wire 14 between produce electrostatic breakdown, open circuit or short-circuit conditions, in the time of signal wire 11 can't being connected.The conducting that just can be connected with conductive layer 55 on color membrane substrates by via hole wire 35 of discontinuous signal wire 11.By above-mentioned design proposal, can make to guarantee that the connection of discontinuous signal 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 replaced with to ITO cross-over connection wire 40, the structural representation of liquid crystal display as shown in Figure 4.ITO cross-over connection wire 40 is set on insulation course 20, at discontinuous signal wire 11, offers via hole, and the generation transparency conducting layer forms via hole wire 37 on via hole, this transparency conducting layer is the ITO layer.Via hole wire 37 is connected with ITO cross-over connection wire 40.Discontinuous signal wire 11 is connected with ITO cross-over connection wire 40 by via hole wire 37 and conducting.After color membrane substrates and array base palte are to box, via hole wire 37 also will be connected with conductive layer 57 contacts of color membrane substrates, the conducting thereby signal wire 11 also can be connected with conductive layer 57 on color membrane substrates by via hole wire 37.Because considering that conductive layer 57 is the ITO material, when long distance conduction, the impedance meeting is excessive, cause conductive capability more weak, therefore, in the zone of the corresponding cross-over connection wire 40 of color membrane substrates, be provided with the metal black-matrix layer metal BM whole corresponding region of tiling, in order to can assist conductive layer 57 to be grown the distance conduction.To guarantee the conducting that is connected with conductive layer 57 by via hole wire 37 of discontinuous signal 11.Both make to work as ITO cross-over connection wire 40 much because of impedance, caused signal delay, while causing signal wire 11 to be connected.The conducting that can also be connected with conductive layer 57 on color membrane substrates by via hole wire 37 of discontinuous signal wire 11.

By utilizing conductive layer on color membrane substrates, assist the discontinuous signal line of transmission same signal of the periphery of array base palte side viewing area to connect conducting, 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 signal wire, normally show to guarantee liquid crystal indicator.

Claims

1. a liquid crystal indicator, the color membrane substrates that it comprises array base palte, is oppositely arranged with array base palte, the outer discontinuous signal wire of transmission same signal, the via hole wire be connected with discontinuous signal wire of being arranged with in the viewing area of array base palte; Be provided with conductive layer on color membrane substrates; It is characterized in that: after array base palte and color membrane substrates laminating, described conductive layer contacts with described via hole wire and conducting, makes described discontinuous signal wire be connected conducting by described via hole wire with told conductive layer.

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

3. liquid crystal indicator according to claim 1, it is characterized in that: described array base palte also comprises the cross-over connection wire be electrically connected mutually with described via hole wire, by described via hole wire and cross-over connection wire, make described discontinuous signal connect conducting.

4. liquid crystal indicator according to claim 3, it is characterized in that: the material of described cross-over connection wire is identical with the material of described discontinuous signal wire.

5. liquid crystal indicator according to claim 3, it is characterized in that: the material of described cross-over connection wire is ITO.