CN1564057A - Pixel structure - Google Patents

Pixel structure Download PDF

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Publication number
CN1564057A
CN1564057A CN 200410030281 CN200410030281A CN1564057A CN 1564057 A CN1564057 A CN 1564057A CN 200410030281 CN200410030281 CN 200410030281 CN 200410030281 A CN200410030281 A CN 200410030281A CN 1564057 A CN1564057 A CN 1564057A
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China
Prior art keywords
data distribution
distribution
disposed
contact hole
dielectric layer
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CN 200410030281
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Chinese (zh)
Inventor
来汉中
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AU Optronics Corp
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AU Optronics Corp
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Priority to CN 200410030281 priority Critical patent/CN1564057A/en
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Abstract

The drawing structure is suitable configured on a base plate. For example, more than three contact holes are formed on dielectric layer between scanning data wires and scanning data quasi wires so as to make electrical connection between scanning data wires and scanning data quasi wires. When the said contact holes are not all passed through, signals are still can be transferred through scanning data quasi wires.

Description

Image element structure
Technical field
The invention relates to a kind of image element structure (pixel), particularly do not run through because of the processing procedure defective, promptly cause intending the image element structure that distribution lost efficacy relevant for a kind of contact hole of avoiding.
Background technology
In order to cooperate modern life pattern, it is thin light that the volume of video signal or device for image day by day is tending towards.Traditional cathode layer ray display, though still have its advantage, it need take large volume and very power consumption.Therefore, cooperate photoelectric technology and semiconductor fabrication, the display of panel type has been developed to become common display product, for example LCD (LCD) at present.
LCD mainly is made of an active component array base board, a colorful filter array substrate and a liquid crystal layer, and wherein active component array base board is made up of a plurality of picture element unit with arrayed.The picture element unit is made of the pixel electrode (pixel electrode) that an active member and a correspondence dispose on the active member therewith, and active member is intended for the on-off element of liquid crystal display.In addition, in order to control other picture element unit, usually via one scan distribution (Scan line) and a data distribution (Date line) choosing specific picture element, and by by imposing on suitable operating voltage, to show the display data of corresponding this picture element.
It should be noted that, in the prior art, because of being afraid of scan wiring and data distribution are arranged because broken string causes signal can't transmit situation, therefore there is the design of plan distribution (Redundant line) to produce, by electrically connecting by intending distribution and scan wiring or data distribution, so when scan wiring or data distribution had the situation of broken string, scan wiring or data distribution still can be by transmitting signal by above-mentioned plan distribution.
Fig. 1 is existing a kind of vertical view with image element structure of intending distribution, and Fig. 2 is the being seen side view of profile line A-A according to Fig. 1, and Fig. 3 is the being seen side view of profile line B-B according to Fig. 1.Please be simultaneously with reference to Fig. 1, Fig. 2 and Fig. 3, existing image element structure 100 be framework on a substrate 10, this image element structure 100 mainly is to scan distribution 110, by one to intend scan wiring 120, a dielectric layer 130, a data distribution 140, and intend data distribution 150, an active member 160 and a pixel electrode 170 and constituted.
Scanning distribution 110 is to be disposed on the substrate 10 with data distribution 140, and intends scan wiring 120 and be disposed at and scan distribution 110 tops, intends 150 belows that are disposed at data distribution 140 of data distribution.Dielectric layer 130 is disposed at and scans between distribution 110 and plan scan wiring 120 and data distribution 140 and the data of the plan distribution 150.Wherein on the dielectric layer 130 that scans between distribution 110 and the plan scan wiring 120, have two first contact holes 132, so that scan wiring 110 passes through to be electrically connected by these two first contact holes 132 with plan scan wiring 120, and have two second contact holes 134 on the dielectric layer 130 between data distribution 140 and the data of the plan distribution 150, so that data distribution 140 passes through to be electrically connected by these two second contact holes 134 with the data of plan distribution 150.
Active member 160 for example is membrane transistor (TFT), and neighbor configuration is in scanning the staggered place of distribution 110 with data distribution 140.Pixel electrode 170 is electrically connected at this active member 160, and wherein active member 160 is by by the control that scans distribution 110, writes in the pixel electrode 170 with the signal of video signal that data distribution 140 is transmitted.
From the above, corresponding plan scan wiring 120 and the data of plan distribution 150 electrically connects with it respectively with two second contact holes 134 by two first contact holes 132 on the dielectric layer 130 owing to scan wiring 110 and data distribution 140 pass through, when causing distribution to produce the situation of broken string making scan wiring 110 with data distribution 140 metal-stripping (Metal peeling) take place, the distribution of this broken string then can be by being transmitted signal by the plan distribution corresponding with it.
Though it should be noted that in the prior art be design in order to scan wiring with intend the contact hole that scan wiring electrically connects, or the contact hole of design in order to electrically connect with data distribution and the data of plan distribution, the number of those contact holes is all two.Yet so design has a shortcoming, if two one of them defectives because of processing procedure of contact hole are not run through, intend distribution can't be as scan wiring or data distribution the extension wire after broken string.Therefore, as long as find wherein one when not run through of two contact holes, must be by its contact hole being run through by laser preparing (laser repair), and the problem of the impedance of causing raising is arranged through the laser preparing part.
Summary of the invention
Purpose of the present invention is providing a kind of image element structure exactly, and by the number by the contact hole on the increase dielectric layer, a contact hole is not run through because of the processing procedure defective to avoid over wherein, promptly causes intending the problem that distribution lost efficacy.
Another object of the present invention is providing a kind of image element structure exactly, and by by design one strip contact hole, a contact hole is not run through because of the processing procedure defective to avoid over wherein, promptly causes intending the problem of distribution inefficacy.
Based on above-mentioned purpose, the invention provides a kind of image element structure, be suitable for framework on a substrate, this image element structure mainly is to scan distribution, a plan scan wiring, a dielectric layer, a data distribution, an active member and a pixel electrode by one to be constituted.Scan distribution and be disposed on the substrate, and intend scan wiring and be disposed at and scan the distribution top.Dielectric layer is disposed at and scans between distribution and the plan scan wiring, and wherein dielectric layer has first contact hole more than three, so that scan wiring and plan scan wiring are by being electrically connected by those first contact holes.The data distribution is disposed on the substrate, and the active member neighbor configuration is in scanning distribution and data distribution staggered place.Pixel electrode is electrically connected at active member, and wherein active member is by by scanning distribution control, writes to pixel electrode with the signal of video signal that the data distribution is transmitted.
In above-mentioned preferred embodiment of the present invention, data distribution below more disposes one and intends the data distribution, wherein dielectric layer also is disposed between data distribution and the data of the plan distribution, and this dielectric layer has more second contact hole more than three, so that the data distribution passes through to be electrically connected by those second contact holes with the data of plan distribution.
In above-mentioned preferred embodiment of the present invention, data distribution below more disposes one and intends the data distribution, wherein dielectric layer also is disposed between data distribution and the data of the plan distribution, and dielectric layer has more one the 3rd contact hole, and the size of this 3rd contact hole is between 25um so far between the length of data distribution, so that data distribution and the data of plan distribution are by being electrically connected by those the 3rd contact holes.In addition, this 3rd contact hole for example is a rectangle opening.
In above-mentioned preferred embodiment of the present invention, active member for example is a membrane transistor.
In above-mentioned preferred embodiment of the present invention, on the dielectric layer that scans between distribution and the plan scan wiring, more can change configuration one first contact hole, the size of this first contact hole is between the length of 25um and scan wiring, so that scan wiring and plan scan wiring are by being electrically connected by first contact hole.In addition, this first contact hole for example is a rectangle opening.
Based on above-mentioned purpose, the present invention proposes a kind of image element structure in addition, is suitable for framework on a substrate, and this image element structure mainly is to scan distribution, a data distribution, a plan data distribution, a dielectric layer, an active member and a pixel electrode by one.Scan distribution and be disposed on the substrate, and the data distribution also is disposed on the substrate.Plan data distribution is disposed at data distribution below.Dielectric layer is disposed between data distribution and the data of the plan distribution, and wherein dielectric layer has first contact hole more than three, so that the data distribution passes through to be electrically connected by those first contact holes with the data of plan distribution.The active member neighbor configuration is in scanning distribution and data distribution staggered place.Pixel electrode is electrically connected at active member, and wherein active member is by by scanning distribution control, writes to pixel electrode with the signal of video signal that the data distribution is transmitted.
In above-mentioned preferred embodiment of the present invention, active member for example is a membrane transistor.
In above-mentioned preferred embodiment of the present invention, on the dielectric layer between data distribution and the data of the plan distribution, more can change configuration one first contact hole, the size of this first contact hole is between the length of 25um and data distribution, so that the data distribution passes through to be electrically connected by first contact hole with the data of plan distribution.In addition, this first contact hole for example is a rectangle opening.
Image element structure of the present invention mainly by being strip contact hole between the length of 25um and scan wiring (or data distribution) by forming the contact hole more than three on the dielectric layer of intending in scan wiring (or data distribution) and scanning between the distribution (or data plan distribution) or forming a size, makes scan wiring (or data distribution) and scanning plan distribution (or data plan distribution) electric connection.Because the contact hole on the dielectric layer is designed to a plurality of above or strip contact holes, can prevent that the existing wherein contact hole from not run through because of the processing procedure defective, promptly cause intending the problem that distribution lost efficacy, so the present invention can solve the situation that scan wiring or data distribution cause signal to transmit because of broken string really.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 illustrates existing a kind of vertical view with image element structure of intending distribution;
Fig. 2 is the being seen side view of profile line A-A that illustrates according to Fig. 1;
Fig. 3 is the being seen side view of profile line B-B that illustrates according to Fig. 1;
Fig. 4 is a kind of vertical view with image element structure of intending distribution that illustrates according to a preferred embodiment of the present invention;
Fig. 5 is the being seen side view of profile line C-C that illustrates according to Fig. 4;
Fig. 6 is the being seen side view of profile line D-D according to Fig. 4;
Fig. 7 illustrates a kind of vertical view with image element structure of intending distribution according to another preferred embodiment of the present invention;
Fig. 8 is the being seen side view of profile line E-E according to Fig. 7.
Embodiment
Fig. 4 illustrates a kind of vertical view with image element structure of intending distribution according to a preferred embodiment of the present invention, and Fig. 5 is the being seen side view of profile line C-C according to Fig. 4, and Fig. 6 is the being seen side view of profile line D-D according to Fig. 4.Please be simultaneously with reference to Fig. 4, Fig. 5 and Fig. 6, image element structure 200 of the present invention be framework on a substrate 20, this image element structure 200 mainly is to scan distribution 210, by one to intend scan wiring 220, a dielectric layer 230, a data distribution 240, and intend data distribution 250, an active member 260 and a pixel electrode 270 and constituted.
Scanning distribution 210 is to be disposed on the substrate 20 with data distribution 240, and intends scan wiring 220 and be disposed at and scan distribution 210 tops, intends 250 belows that are disposed at data distribution 240 of data distribution.Dielectric layer 230 is disposed at and scans between distribution 210 and plan scan wiring 220 and data distribution 240 and the data of the plan distribution 250.Wherein on the dielectric layer 230 that scans between distribution 210 and the plan scan wiring 220, has first contact hole 232 (showing four expressions) more than three, so that scan wiring 210 passes through to be electrically connected by these first contact holes 232 with plan scan wiring 220 at this.In addition, on the dielectric layer 230 between data distribution 240 and the data of the plan distribution 250, has second contact hole 234 (showing four expressions equally) more than three, so that data distribution 240 passes through to be electrically connected by these second contact holes 234 with the data of plan distribution 250 at this.
Active member 260 for example is membrane transistor (TFT), and neighbor configuration is in scanning the staggered place of distribution 210 with data distribution 240.This active member 260 comprises a gate 262, a channel layer 264, one source pole 266 and a drain 268.Wherein gate 262 with scan distribution 210 and be connected, channel layer 264 covers these gates 262, source electrode 266 and drain 268 are disposed at the top of channel layer 264, and are positioned at the both sides of gate 214, and source electrode 266 is connected with data distribution 240.
Pixel electrode 270 is electrically connected at this active member 260; for example scanning comprehensive covering one protective seam 280 above distribution 210, data distribution 240 and the active member 260; and offer an opening 282 on the protective seam 280 corresponding to drain 268 places, so that pixel electrode 270 is by being electrically connected by this opening 282 and active member 260.Therefore, active member 260 is can be by by the control that scans distribution 210, write to pixel electrode 170 with the signal of video signal that data distribution 240 is transmitted, this meaning is promptly when gate 262 is coupled to a suitable voltage, channel layer 264 promptly is the state of conducting, and the signal of video signal that show about picture this moment just can be in regular turn writes in the pixel electrode 280 via data distribution 240, source electrode 266, channel layer 264, drain 2268.
It should be noted that, present embodiment mainly is that the number with first contact hole 232 on the dielectric layer 230 and second contact hole 234 increases to more than three by existing two, therefore, when dielectric layer 230 at the processing procedure that carries out patterning when forming those contact holes, if those contact holes of part are not connected because of the defective of processing procedure, the plan distribution that above-mentioned scan wiring 210 (or data distribution 240) is corresponding with it still can make each other by the contact hole by other and electrically conduct, and loses efficacy with the effect of avoiding intending distribution.In other words, when those contact holes of part are connected because of the defective of processing procedure, do not need to carry out the step of laser repairing yet, therefore do not have prior art because of carrying out laser repairing yet, and cause the problem of impedance raising at the contact hole that is not connected.
Fig. 7 illustrates a kind of vertical view with image element structure of intending distribution according to another preferred embodiment of the present invention, and Fig. 8 is the being seen side view of profile line E-E according to Fig. 7.See also Fig. 7 and Fig. 8, disclosed pixel electrode 200 its structures of this preferred embodiment are roughly identical with the above embodiments, its different being in changing on the dielectric layer 230 between data distribution 240 and the data of the plan distribution 250 is offered one the 3rd contact hole 236, and the size of this 3rd contact hole 236 is between 25um so far between the length of data distribution 240, so that data distribution 240 passes through to be electrically connected by the 3rd contact hole 236 with the data of plan distribution 250, this 3rd contact hole 236 for example is a rectangle opening or the perforate of other shapes in the present embodiment.
Because above-mentioned the 3rd contact hole 236 its quantity are one, and be designed to a strip kenel, therefore in the time of can avoiding contact hole to be designed to most, can take place because of the situation that the defective on the processing procedure causes the part contact hole not connected, and then reduce and intend the probability that distribution lost efficacy.
From the above, being familiar with this skill person should know, the above-mentioned kenel of offering the contact hole more than three or offering a strip contact hole, can arrange in pairs or groups mutually in scan wiring and intend on the dielectric layer between the scan wiring and data distribution and plan data distribution between dielectric layer on.Therefore, the present invention also can offer an above-mentioned disclosed strip contact hole on dielectric layer between the distribution is intended in scan wiring and scanning, then can dispose the contact hole more than three relatively or offer a strip contact hole on the dielectric layer between data distribution and the plan data distribution.Certainly and since image element structure of the present invention need not limit scanning intend distribution and data intend distribution must common configuration, and can be on demand and selectivity disposes.Therefore, if distribution is intended in the scan wiring top not corresponding scanning of configuration, the dielectric layer of its scan wiring top then can omit above-mentioned disclosed contact hole, and if the data of not configuration correspondence of data distribution below is intended distribution, the dielectric layer of data distribution below then can omit above-mentioned disclosed contact hole.
In sum, image element structure of the present invention mainly by being strip contact hole between the length of 25um and scan wiring (or data distribution) by forming the contact hole more than three on the dielectric layer of intending in scan wiring (or data distribution) and scanning between the distribution (or data plan distribution) or forming a size, makes scan wiring (or data distribution) and scanning plan distribution (or data plan distribution) electric connection.Because the contact hole on the dielectric layer is designed to a plurality of above or strip contact holes, can prevent that the existing wherein contact hole from not run through because of the processing procedure defective, promptly cause intending the problem that distribution lost efficacy.Therefore, the present invention can solve the situation that scan wiring or data distribution cause signal to transmit because of broken string really.
Though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.

Claims (16)

1. an image element structure is characterized in that being suitable for framework on a substrate, and this image element structure comprises:
One scans distribution, is disposed on this substrate;
One intends scan wiring, is disposed at this and scans the distribution top;
One dielectric layer is disposed at this and scans between distribution and this plan scan wiring, and wherein this dielectric layer has first contact hole more than three, so that this scan wiring and this plan scan wiring are by being electrically connected by those first contact holes;
One data distribution is disposed on this substrate;
One active member, neighbor configuration scans distribution and this data distribution staggered place in this; And
One pixel electrode is electrically connected at this active member, and wherein this active member is by being scanned distribution control by this, writing to this pixel electrode with the signal of video signal that this data distribution is transmitted.
2. image element structure as claimed in claim 1, it is characterized in that more comprising that one intends the data distribution, be disposed at this data distribution below, wherein this dielectric layer also is disposed between this data distribution and this plan data distribution, and this dielectric layer has more second contact hole more than three, so that this data distribution and this plan data distribution are by being electrically connected by those second contact holes.
3. image element structure as claimed in claim 1, it is characterized in that more comprising that one intends the data distribution, be disposed at this data distribution below, wherein this dielectric layer also is disposed between this data distribution and this plan data distribution, and this dielectric layer has more one the 3rd contact hole, and the size of the 3rd contact hole is between the length of 25um and this data distribution, so that this data distribution and this plan data distribution are by being electrically connected by those second contact holes.
4. image element structure as claimed in claim 3 it is characterized in that described the 3rd contact hole is a rectangle opening, and the length of this rectangle opening is between the length of 25um and this data distribution.
5. image element structure as claimed in claim 3 is characterized in that described this active member comprises membrane transistor.
6. an image element structure is characterized in that being suitable for framework on a substrate, and this image element structure comprises:
One scans distribution, is disposed on this substrate;
One intends scan wiring, is disposed at this and scans the distribution top;
One dielectric layer, being disposed at this scans between distribution and this plan scan wiring, wherein this dielectric layer has one first contact hole, and the size of this first contact hole is between the length of 25um and this scan wiring, so that this scan wiring and this plan scan wiring are by being electrically connected by this first contact hole;
One data distribution is disposed on this substrate;
One active member, neighbor configuration scans distribution and this data distribution staggered place in this; And
One pixel electrode is electrically connected at this active member, and wherein this active member is by being scanned distribution control by this, writing to this pixel electrode with the signal of video signal that this data distribution is transmitted.
7. image element structure as claimed in claim 6 it is characterized in that described this first contact hole is a rectangle opening, and the length of this rectangle opening is between the length of 25um and this scan wiring.
8. image element structure as claimed in claim 6, it is characterized in that more comprising that one intends the data distribution, be disposed at this data distribution below, wherein this dielectric layer also is disposed between this data distribution and this plan data distribution, and this dielectric layer has more second contact hole more than three, so that this data distribution and this plan data distribution are by being electrically connected by those second contact holes.
9. image element structure as claimed in claim 6, it is characterized in that more comprising that one intends the data distribution, be disposed at this data distribution below, wherein this dielectric layer also is disposed between this data distribution and this plan data distribution, and this dielectric layer has more one the 3rd contact hole, and the size of the 3rd contact hole is between the length of 25um and this data distribution, so that this data distribution and this plan data distribution are by being electrically connected by those second contact holes.
10. image element structure as claimed in claim 9 it is characterized in that described the 3rd contact hole is a rectangle opening, and the length of this rectangle opening is between the length of 25um and this data distribution.
11. image element structure as claimed in claim 6 is characterized in that described this active member comprises membrane transistor.
12. an image element structure is characterized in that being suitable for framework on a substrate, this image element structure comprises:
One scans distribution, is disposed on this substrate;
One data distribution is disposed on this substrate;
One intends the data distribution, is disposed at this data distribution below;
One dielectric layer is disposed between this data distribution and this plan data distribution, and wherein this dielectric layer has first contact hole more than three, so that this data distribution and this plan data distribution are by being electrically connected by those first contact holes;
One active member, neighbor configuration scans distribution and this data distribution staggered place in this; And
One pixel electrode is electrically connected at this active member, and wherein this active member is by being scanned distribution control by this, writing to this pixel electrode with the signal of video signal that this data distribution is transmitted.
13. image element structure as claimed in claim 12 is characterized in that described this active member comprises membrane transistor.
14. an image element structure is characterized in that being suitable for framework on a substrate, this image element structure comprises:
One scans distribution, is disposed on this substrate;
One data distribution is disposed on this substrate;
One intends the data distribution, is disposed at this data distribution below;
One dielectric layer, be disposed between this data distribution and this plan data distribution, wherein this dielectric layer has one first contact hole, and the size of this first contact hole is between the length of 25um and this data distribution, so that this data distribution and this plan data distribution are by being electrically connected by this first contact hole;
One active member, neighbor configuration scans distribution and this data distribution staggered place in this; And
One pixel electrode is electrically connected at this active member, and wherein this active member is by being scanned distribution control by this, writing to this pixel electrode with the signal of video signal that this data distribution is transmitted.
15. image element structure as claimed in claim 14 it is characterized in that described this first contact hole is a rectangle opening, and the length of this rectangle opening is between the length of 25um and this data distribution.
16. image element structure as claimed in claim 14 is characterized in that described this active member comprises membrane transistor.
CN 200410030281 2004-03-23 2004-03-23 Pixel structure Pending CN1564057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410030281 CN1564057A (en) 2004-03-23 2004-03-23 Pixel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410030281 CN1564057A (en) 2004-03-23 2004-03-23 Pixel structure

Publications (1)

Publication Number Publication Date
CN1564057A true CN1564057A (en) 2005-01-12

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Open date: 20050112