CN103293796A - Thin film transistor liquid crystal display in plane field switch control mode and repairing method thereof - Google Patents
Thin film transistor liquid crystal display in plane field switch control mode and repairing method thereof Download PDFInfo
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- CN103293796A CN103293796A CN2012100730217A CN201210073021A CN103293796A CN 103293796 A CN103293796 A CN 103293796A CN 2012100730217 A CN2012100730217 A CN 2012100730217A CN 201210073021 A CN201210073021 A CN 201210073021A CN 103293796 A CN103293796 A CN 103293796A
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Abstract
The invention discloses a thin film transistor liquid crystal display in a plane field switch control mode and a repairing method thereof. A display region of the liquid crystal display is evenly divided into a left zone and a right zone; thin film transistors in each pixel unit located in the left zone are all electrically connected with a data line on the left side of a corresponding pixel unit; thin film transistors in each pixel unit located in the right zone of the display region are all electrically connected with a data line located on the right side of a corresponding pixel unit; and an idle line located in the center of the display region and not connected with any one thin film transistor is a repairing line. When a broken data line is repaired, only the broken data line and the repairing line are respectively in fusion splicing with a first connecting line at the external top end of the display region and a second connecting line at the external bottom end of the display region. With the adoption of the repairing method, the repairing effect is improved, and besides, the repairing method is suitable for a thin film transistor display in the plane filed switch control mode, of which a driving chip has no output of a repairing signal.
Description
Technical field
The present invention relates to the LCD Technology field, relate in particular to a kind of Thin Film Transistor-LCD and restorative procedure thereof of flat field mode switching control.
Background technology
At Thin Film Transistor-LCD (TFT-LCD, Thin Film Transistor-LiquidCrystal Display) in the manufacture craft process, because problems such as the design of the quality of quality of forming film, the cleanliness factor of environment, device itself and equipment itself, inevitably can produce the broken data wire problem, so cause picture element signal can not driven, problem such as pixel defective.
Thin Film Transistor-LCD (In-Plane SwitchLiquid Crystal Display for the flat field mode switching control, IPS-LCD or Fringe Field Switch Liquid CrystalDisplay, FFS-LCD), it often adopts the method that the annular repair line is set outside the viewing area when solving the broken data wire problem.With reference to figure 1, Fig. 1 is the structural representation of the Thin Film Transistor-LCD of a kind of flat field mode switching control common in the prior art, zone line is viewing area (Active Area) 1 among the figure, be provided with many vertical data lines 2 in the viewing area 1, viewing area 1 outer periphery is equipped with the reparation line 3 of annular, and described reparation line 3 connects the driving chip that can produce repair signal.When the broken string situation occurring on a certain data line, the data line that can will break by radium-shine fusion joining process is repaired line 3 weldings (there is shown two welding points at the data line two ends of broken string) with corresponding outside viewing area 1, the repair signal that is produced by the respective drive chip is sent to the broken string place of data line after by the annular repair line afterwards, realizes the reparation to the broken string place.
In the prior art owing in the periphery, viewing area the annular repair line is set, therefore, repair signal needs to be sent to the broken string place by the loop of periphery, and repair signal will make after through the transmission of longer route load increase, so finally arrive the easy distortion of the repair signal at broken string place, thereby make that the repairing effect of this Thin Film Transistor-LCD is bad.
In addition, the Thin Film Transistor-LCD of some flat field mode switching control has only a driving chip and described driving chip not to have repair signal output usually, therefore, do not have the Thin Film Transistor-LCD of the flat field mode switching control of repair signal output for above-mentioned driving chip, can not adopt the reparation of breaking of above-mentioned annular repair line.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of Thin Film Transistor-LCD and restorative procedure thereof of flat field mode switching control, this LCD is breaking when repairing, and need not at the buy property driving chip of living repair signal of viewing area outer periphery, and it is higher to repair yield.
For addressing the above problem, the embodiment of the invention provides following technical scheme:
A kind of Thin Film Transistor-LCD of flat field mode switching control comprises:
The viewing area is provided with sweep trace and many vertical data lines of many levels in the described viewing area, arbitrarily adjacent two sweep traces and arbitrarily adjacent two data lines intersect and surround a pixel cell;
Be provided with a thin film transistor (TFT) in each pixel cell, two zones about the viewing area is equally divided into, the thin film transistor (TFT) that is positioned at the viewing area left field all is positioned at the left side of respective pixel unit, the thin film transistor (TFT) that is positioned at the viewing area right side area all is positioned at the right side of respective pixel unit, be positioned at vacant line that the center, viewing area do not connect any thin film transistor (TFT) for repairing line, described reparation line is parallel with described data line;
Be arranged on first connecting line and second connecting line that is arranged on bottom outside the viewing area of viewing area outer end, described first connecting line is all parallel with sweep trace with second connecting line, and described first connecting line and second connecting line and each data line and reparation line are all overlapping.
Preferably, described reparation line and data line bit are in same one deck.
Preferably, the left side all is connected data line drive circuit with the data line of right side area in the described viewing area, and the reparation line at center, described viewing area does not connect data line drive circuit.
Preferably, be positioned at each pixel cell of viewing area left field, the thin film transistor (TFT) in it all is positioned at the lower left corner of respective pixel unit, is positioned at each pixel cell of viewing area right side area, and the thin film transistor (TFT) in it all is positioned at the lower right corner of respective pixel unit.
Preferably, include a pixel electrode in each pixel cell; Thin film transistor (TFT) in each pixel cell includes grid, source electrode and drain electrode; And described grid, source electrode and drain electrode are connected sweep trace, data line and pixel electrode in the respective pixel unit respectively.
A kind of restorative procedure of Thin Film Transistor-LCD of flat field mode switching control, the Thin Film Transistor-LCD of this flat field mode switching control are above-mentioned each described Thin Film Transistor-LCD, and this restorative procedure comprises:
Find out the data line of broken string in the viewing area;
The viewing area outer end by laser repair welding mode with the data line of described broken string and repair line respectively with the first connecting line welding, the viewing area outside the bottom by laser repair welding mode with the data line of described broken string and reparation line respectively with the second connecting line welding.
From technique scheme as can be seen, the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention, be positioned at each pixel cell of viewing area left field, thin film transistor (TFT) in it all is electrically connected with the data line that is positioned at left side, respective pixel unit, be positioned at each pixel cell of viewing area right side area, thin film transistor (TFT) in it all is electrically connected with the data line that is positioned at right side, respective pixel unit, therefore, make the vacant line that is positioned at the center, viewing area not connect any thin film transistor (TFT), the vacant line at this center, viewing area is for repairing line, when the broken string situation occurring on a certain data line in the viewing area, by the laser repair fusing mode with the broken string data line respectively with the viewing area outside first connecting line and the second connecting line welding, to repair simultaneously line respectively with first connecting line and the second connecting line welding, like this, data-signal can arrive on the data line of broken string by described reparation line, thereby realizes the reparation to the broken string data line.The Thin Film Transistor-LCD of flat field mode switching control provided by the present invention, repair signal (being data-signal) when being transmitted institute shorter through route, so load is less, finally makes repairing effect good; And this restorative procedure need not in the periphery, viewing area the annular repair line to be set, need not to arrange the driving chip that can produce repair signal, therefore for the Thin Film Transistor-LCD that drives chip and do not have the flat field mode switching control of repair signal output break repair especially suitable.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the Thin Film Transistor-LCD of a kind of flat field mode switching control common in the prior art;
Fig. 2 is the synoptic diagram of a kind of dot structure in the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention;
Fig. 3 is the synoptic diagram of the another kind of dot structure in the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention;
Fig. 4 is the arrangement mode synoptic diagram of dot structure in the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention;
Fig. 5 is the structural representation of the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization under the situation of intension of the present invention, so the present invention is not subjected to the restriction of following public specific embodiment.
Just as described in the background section, have now in the technology for the broken string data line is repaired, the periphery, viewing area of being everlasting arranges the annular repair line, when the broken string situation appears in a certain data line in the viewing area, repair signal is sent to the broken string place by the loop of periphery, and repair signal will make after by the transmission of peripheral loop load increase, and finally make the easy distortion of repair signal to cause repairing effect bad; And need provide the repair signal pin by driving chip when repairing, and when the driving chip does not have the repair signal pin, can't adopt this method design to repair line, therefore employing provides the repair signal method that output is repaired to limit by the driving chip and drives the application that chip does not have the repair signal structure.
Based on this, the inventor has designed a kind of Thin Film Transistor-LCD and restorative procedure thereof of new flat field mode switching control, adopt the annular repair line to break in the existing technology to have when repairing repairing effect bad to solve, can have the problem of using in the Thin Film Transistor-LCD of flat field mode switching control of repair signal output driving chip.
Describe Thin Film Transistor-LCD and the restorative procedure thereof of flat field mode switching control provided by the present invention in detail below in conjunction with accompanying drawing.
With reference to figure 2, Fig. 2 is the synoptic diagram of a kind of dot structure in the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention, there is shown vertical data line 4 and vacant line, described vacant line is repairs line 6, described reparation line 6 is parallel with described data line 4, thin film transistor (TFT) 5 is positioned at its left side in this dot structure, there is shown and be positioned at its lower left corner, can also be positioned at its upper left corner by arranging, the source electrode of this thin film transistor (TFT) 5 is electrically connected with the data line 4 in left side in this dot structure, the sweep trace of below is electrically connected in its grid and this dot structure, and it drains and is electrically connected with pixel electrode in this dot structure.
With reference to figure 3, Fig. 3 is the synoptic diagram of the another kind of dot structure in the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention, with Fig. 2 difference be, thin film transistor (TFT) among Fig. 3 is arranged in the right side of respective pixel structure, be in particular the lower right corner, certainly, also can be located at the upper right corner by arranging, the source electrode of thin film transistor (TFT) is electrically connected with the data line on right side in this dot structure among Fig. 3.
And the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention, dot structure in it has comprised above-mentioned two kinds of structures, and the dot structure in the viewing area left field, thin film transistor (TFT) in it all is electrically connected with the data line that is positioned at respective pixel structure left side, dot structure in the viewing area right side area, thin film transistor (TFT) in it all is electrically connected with the data line that is positioned at respective pixel structure right side, and described left field and right side area are divided equally described viewing area.
With reference to figure 4, Fig. 4 is the arrangement mode synoptic diagram of dot structure in the Thin Film Transistor-LCD of flat field mode switching control provided by the present invention, is that example describes with four pixel cells (or claiming dot structure) among the figure.Be provided with sweep trace and many vertical data lines of many levels in whole viewing area, adjacent two sweep traces and any adjacent two data lines intersection surround a pixel cell arbitrarily, are provided with a thin film transistor (TFT) in each pixel cell.
The reparation line 6 of this center, viewing area is parallel with described data line, and two zones about this viewing area is equally divided into, and be positioned at each pixel cell of viewing area left field, thin film transistor (TFT) 5 in it all is electrically connected with the data line that is positioned at left side, respective pixel unit, be positioned at each pixel cell of viewing area right side area, the thin film transistor (TFT) 5 in it all be positioned at right side, respective pixel unit data line and be electrically connected.Particularly, there is shown each pixel cell that is positioned at the viewing area left field, thin film transistor (TFT) 5 in it all is positioned at the lower left corner of respective pixel unit, is positioned at each pixel cell of viewing area right side area, and the thin film transistor (TFT) 5 in it all is positioned at the lower right corner of respective pixel unit.Certainly, this is concrete a kind of embodiment, differently therewith be, be positioned at each pixel cell of viewing area left field, thin film transistor (TFT) in it can also be arranged on the upper left corner of respective pixel unit or other any suitable location, be positioned at each pixel cell of viewing area right side area, the thin film transistor (TFT) in it can also be arranged on the upper right corner of respective pixel unit or other any suitable location.But should guarantee to be positioned at each pixel cell of viewing area left field, the source electrode of the thin film transistor (TFT) in it is electrically connected with the data line in left side, respective pixel unit, be positioned at each pixel cell of viewing area right side area, the source electrode of the thin film transistor (TFT) in it is electrically connected with the data line on right side, respective pixel unit.
Dot structure in the viewing area is set in the embodiment of the invention by the way, make the vacant line that is positioned at the center, viewing area not connect the source electrode of any thin film transistor (TFT), therefore, the vacant line that is positioned at the center, viewing area aspect the transmission of data-signal with inoperative, so among the present invention with the described vacant line at center, viewing area that is positioned at as repairing line.The vacant line of center, viewing area does not connect data line drive circuit in the embodiment of the invention, and other data line all needs to connect data line drive circuit, but described vacant line can with described data line bit in same one deck, namely can in same manufacturing process, form, thereby can not influence normal processing procedure, in addition, described vacant line can also be arranged on other layers according to concrete condition, does not do concrete restriction at this.
In addition, also be provided with first connecting line at the viewing area outer end, the bottom also is provided with second connecting line outside the viewing area, and described first connecting line is all parallel with sweep trace with second connecting line, and described first connecting line and second connecting line and each data line and reparation line are all overlapping.
With reference to figure 5, first connecting line C1 and the C2 of viewing area 8 outer ends has been shown among Fig. 5, second connecting line C3 and the C4 of 8 outer bottoms, viewing area, certainly, the first connecting line C1 and the C2 on top can be set to same connecting line, the second connecting line C3 and the C4 of bottom also can be set to same connecting line, in the embodiment of the invention first connecting line and second connecting line are divided into two sections by left field and the right side area of viewing area, can reduce load better when repairing breaking like this.
The Thin Film Transistor-LCD of flat field mode switching control provided by the present invention generally comprises following steps in reparation that the data line in the viewing area is broken:
Step S1: the data line of at first finding out broken string in the viewing area.
With reference to figure 5, the broken string data line 4 that is positioned at the viewing area left field has been shown among Fig. 5.
Step S2: with reference to figure 5, in the viewing area 8 outer ends by the laser repair fusing mode will break data line 4 and repair line 6 respectively with the first connecting line C1 welding, there is shown the welding point of repairing between line 6 and the first connecting line C1 7; Outside viewing area 8 bottom by the laser repair fusing mode will break data line 4 and repair line 6 respectively with the second connecting line C3 welding.
After welding is finished, the data-signal that data line drive circuit 9 produces will arrive on the broken string data line 4 by repairing line 6, the first connecting line C1 and the second connecting line C3, thereby realize the reparation to broken string data line 4.
Because in repair process, data-signal only need can arrive the broken string data line by reparation line (being vacant line) and the corresponding connecting line of center, viewing area, therefore, compare the method that repair signal in the existing technology need arrive the broken string data line through the loop line of periphery, viewing area, this restorative procedure can reduce the path that data-signal transmits, and then reduced load, make repairing effect preferable; And, this method need not in the periphery, viewing area the annular repair line to be set, also need not to put driving chip (or driving circuit) for generation of repair signal in outer periphery, therefore, can also satisfy and drive the broken string reparation of Thin Film Transistor-LCD that chip does not have the flat field mode switching control of repair signal output.
Various piece adopts the mode of going forward one by one to describe in this instructions, and what each part stressed is and the difference of other parts that identical similar part is mutually referring to getting final product between the various piece.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. the Thin Film Transistor-LCD of a flat field mode switching control is characterized in that, comprising:
The viewing area is provided with sweep trace and many vertical data lines of many levels in the described viewing area, arbitrarily adjacent two sweep traces and arbitrarily adjacent two data lines intersect and surround a pixel cell;
Be provided with a thin film transistor (TFT) in each pixel cell, two zones about the viewing area is equally divided into, the thin film transistor (TFT) that is positioned at the viewing area left field all is electrically connected with the data line that is positioned at left side, respective pixel unit, the thin film transistor (TFT) that is positioned at the viewing area right side area all is electrically connected with the data line that is positioned at right side, respective pixel unit, be positioned at vacant line that the center, viewing area do not connect any thin film transistor (TFT) for repairing line, described reparation line is parallel with described data line;
Be arranged on first connecting line and second connecting line that is arranged on bottom outside the viewing area of viewing area outer end, described first connecting line is all parallel with sweep trace with second connecting line, and described first connecting line and second connecting line and each data line and reparation line are all overlapping.
2. Thin Film Transistor-LCD according to claim 1 is characterized in that, described reparation line and data line bit are in same one deck.
3. Thin Film Transistor-LCD according to claim 1 is characterized in that, the left side all is connected data line drive circuit with the data line of right side area in the described viewing area, and the reparation line at center, described viewing area does not connect data line drive circuit.
4. Thin Film Transistor-LCD according to claim 1, it is characterized in that, be positioned at each pixel cell of viewing area left field, thin film transistor (TFT) in it all is positioned at the lower left corner of respective pixel unit, be positioned at each pixel cell of viewing area right side area, the thin film transistor (TFT) in it all is positioned at the lower right corner of respective pixel unit.
5. Thin Film Transistor-LCD according to claim 1 is characterized in that, includes a pixel electrode in each pixel cell; Thin film transistor (TFT) in each pixel cell includes grid, source electrode and drain electrode; And described grid, source electrode and drain electrode are connected sweep trace, data line and pixel electrode in the respective pixel unit respectively.
6. the restorative procedure of the Thin Film Transistor-LCD of a flat field mode switching control, it is characterized in that, the Thin Film Transistor-LCD of this flat field mode switching control is that aforesaid right requires each described Thin Film Transistor-LCD of 1-5, and this restorative procedure comprises:
Find out the data line of broken string in the viewing area;
The viewing area outer end by laser repair welding mode with the data line of described broken string and repair line respectively with the first connecting line welding, the viewing area outside the bottom by laser repair welding mode with the data line of described broken string and reparation line respectively with the second connecting line welding.
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| CN201210073021.7A CN103293796B (en) | 2012-03-19 | 2012-03-19 | The Thin Film Transistor-LCD of crystal display in plane field switch control mode and restorative procedure thereof |
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| CN201210073021.7A CN103293796B (en) | 2012-03-19 | 2012-03-19 | The Thin Film Transistor-LCD of crystal display in plane field switch control mode and restorative procedure thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104898341A (en) * | 2015-06-05 | 2015-09-09 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal panel repairing line structure |
| CN105301809A (en) * | 2015-11-19 | 2016-02-03 | 深圳市华星光电技术有限公司 | Array substrate structure and data line breakage repairing method for array substrate |
| CN109164613A (en) * | 2018-10-24 | 2019-01-08 | 合肥鑫晟光电科技有限公司 | A kind of array substrate and its method for maintaining, display panel and display device |
| CN109459897A (en) * | 2018-11-09 | 2019-03-12 | 深圳市华星光电技术有限公司 | A kind of array substrate method for repairing and mending and repair apparatus |
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| CN109459897A (en) * | 2018-11-09 | 2019-03-12 | 深圳市华星光电技术有限公司 | A kind of array substrate method for repairing and mending and repair apparatus |
| CN109459897B (en) * | 2018-11-09 | 2021-07-06 | Tcl华星光电技术有限公司 | Array substrate repairing method and device |
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| CN103293796B (en) | 2015-09-23 |
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