CN105259681A - Method for repairing gate drive substrate and adjusting output of gate drive substrate as well as LCD (Liquid Crystal Display) - Google Patents
Method for repairing gate drive substrate and adjusting output of gate drive substrate as well as LCD (Liquid Crystal Display) Download PDFInfo
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- CN105259681A CN105259681A CN201510739886.6A CN201510739886A CN105259681A CN 105259681 A CN105259681 A CN 105259681A CN 201510739886 A CN201510739886 A CN 201510739886A CN 105259681 A CN105259681 A CN 105259681A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13454—Drivers integrated on the active matrix substrate
Abstract
The invention discloses a method for repairing a gate drive substrate. The gate drive substrate comprises N scanning lines and N gate drive units. The method comprises the steps of when detecting that the output end of the nth gate drive unit generates an abnormal scanning signal, cutting off the connection between the output end of the nth gate drive unit and the nth scanning line and the connection between the output end of the nth gate drive unit and the feedback end of the (n-1)th gate drive unit, cutting off the connection between the output end of the (n-1)th gate drive unit and the feedback end of the (n-2)th gate drive unit, and cutting off the connection between the output end of the (n+1)th gate drive unit and the (n+1)th canning line; enabling the output end of the (n-1)th gate drive unit, the output end of the nth gate drive unit and the output end of the (n+1)th gate drive unit to be electrically connected by a first metal wire; enabling the feedback end of the (n-2)th gate drive unit and the feedback end of the (n+1)th gate drive unit to be electrically connected by a second metal wire.
Description
Technical field
The invention relates to a kind of liquid crystal display, espespecially a kind of liquid crystal display using raster data model (Gatedriveronarray, GOA) substrate.
Background technology
GOA circuit utilizes the Array processing procedure of Thin Film Transistor-LCD to be produced on by gate drivers to have on the raster data model substrate of thin film transistor (TFT) (Thinfilmtransistor, TFT) array, to realize the type of drive of lining by line scan.
Current small-size liquid crystal displays many employings GOA circuit design.GOA circuit comprises the drive element of the grid of several series winding, and several drive element of the grid sequentially exports sweep signal with bi-directional drive tft array.But, if one of them drive element of the grid damages, such as the open wires that connects or short circuit, or static discharge (ElectrostaticDischarge, ESD) GOA circuit etc. is wounded, make raster data model substrate normally cannot export sweep signal, when causing liquid crystal display to occur that picture is abnormal, bad raster data model substrate can only be scrapped.The method of therefore how to repair raster data model substrate and its output of adjustment is the target that industry is made great efforts.
Summary of the invention
In view of this, the object of this invention is to provide a kind of method and liquid crystal display of repairing raster data model substrate and its output of adjustment, to solve the problem of prior art.
Technical scheme of the present invention provides a kind of method of repairing raster data model substrate, and described raster data model substrate comprises the several pixel cell, N bar sweep trace and the N number of drive element of the grid that arrange in matrix.Described N bar sweep trace is used for sequentially transmitting N number of sweep signal to several described pixel cell.N number of described drive element of the grid couples in the mode of series connection, each drive element of the grid is connected to sweep trace described in N bar one to one, for sequentially exporting several sweep signal to each sweep trace during a renewal frequency, each drive element of the grid comprises the clock end of receive clock signal, receives the trigger end of the trigger pip of upper level drive element of the grid, for receive upper level drive element of the grid trigger pip, receive the feedback end of the sweep signal of next stage drive element of the grid and be connected to the output terminal of corresponding sweep trace.Described output terminal is used for according to the described trigger pip of described clock signal, described upper level drive element of the grid and the sweep signal of described next stage drive element of the grid, exports described sweep signal to corresponding described sweep trace.Described method comprises: (a) provides the first metal wire and the second metal wire in described raster data model substrate, and described first metal wire is not electrically connected electric signal with described second metal wire and is not connected each other; B () is when the output terminal detecting n-th grade of drive element of the grid produces abnormal sweep signal, the connection cut off the connection between the output terminal of connection between the output terminal of described n-th grade of drive element of the grid and n-th sweep trace and described n-th grade of drive element of the grid and the feedback end of (n-1)th grade of drive element of the grid, connection between the output terminal cutting off (n-1)th grade of drive element of the grid and the feedback end of the n-th-2 grades drive element of the grid and cut off between the output terminal of (n+1)th grade of drive element of the grid and (n+1)th sweep trace, wherein n is the positive integer being less than N; C () makes the output terminal of the output terminal of described (n-1)th grade of drive element of the grid, the output terminal of n-th grade of drive element of the grid and (n+1)th grade of drive element of the grid be electrically connected by described first metal wire; And (d) makes the feedback end of the feedback end of the n-th-2 grades drive element of the grid and described (n+1)th grade of drive element of the grid be electrically connected by described second metal wire.
According to embodiments of the invention, described clock signal comprises the first clock signal and second clock signal, adjacent described drive element of the grid is controlled by described first clock signal and described second clock signal respectively, and described first clock signal and described second clock signal anti-phase each other.
According to embodiments of the invention, step (b) separately comprises: cut off the clock end of described n-th grade and (n+1)th grade drive element of the grid and the connection of clock signal.
According to embodiments of the invention, after step (d), described method separately comprises: (e) sequentially exports N-2 sweep signal during described renewal frequency.
Technical scheme of the present invention separately provides a kind of method adjusting raster data model substrate and export, and described raster data model substrate comprises the several pixel cell, N bar sweep trace and the N number of drive element of the grid that arrange in matrix.Described N bar sweep trace is used for sequentially transmitting N number of sweep signal to several described pixel cell.N number of described drive element of the grid couples in the mode of series connection, and each drive element of the grid is connected to sweep trace described in N bar one to one, for sequentially exporting several sweep signal to each sweep trace during a renewal frequency.Described method comprises: provide M adjustment modes, and M described adjustment modes controls described raster data model substrate respectively and export (N-M × 2) individual sweep signal during a renewal frequency, and wherein M is the positive integer being less than N; When the output terminal detecting m drive element of the grid produces abnormal sweep signal, control described raster data model substrate and export (N-m × 2) individual sweep signal during described renewal frequency, wherein m is the positive integer being less than or equal to M.
According to embodiments of the invention, each drive element of the grid comprises the clock end of receive clock signal, receive the trigger end of the trigger pip of upper level drive element of the grid, for receiving the trigger pip of upper level drive element of the grid, receive the feedback end of the sweep signal of next stage drive element of the grid and be connected to the output terminal of corresponding sweep trace, described output terminal is used for according to described clock signal, the described trigger pip of described upper level drive element of the grid and the sweep signal of described next stage drive element of the grid, export described sweep signal to corresponding described sweep trace.When the described output terminal when detecting m drive element of the grid produces abnormal sweep signal, control the step that described raster data model substrate exports (N-m × 2) individual sweep signal during described renewal frequency to comprise: (a) provides the first metal wire and the second metal wire in described raster data model substrate, and described first metal wire is not electrically connected electric signal with described second metal wire and is not connected each other, b () is when the output terminal detecting n-th grade of drive element of the grid produces abnormal sweep signal, cut off the connection between the output terminal of connection between the output terminal of described n-th grade of drive element of the grid and n-th sweep trace and described n-th grade of drive element of the grid and the feedback end of (n-1)th grade of drive element of the grid, cut off the connection between the output terminal of (n-1)th grade of drive element of the grid and the feedback end of the n-th-2 grades drive element of the grid, and the connection cut off between the output terminal of (n+1)th grade of drive element of the grid and (n+1)th sweep trace, wherein n is for being less than N, the positive integer of m, c () makes the output terminal of the output terminal of described (n-1)th grade of drive element of the grid, the output terminal of n-th grade of drive element of the grid and (n+1)th grade of drive element of the grid be electrically connected by described first metal wire, d () makes the feedback end of the feedback end of the n-th-2 grades drive element of the grid and described (n+1)th grade of drive element of the grid be electrically connected by described second metal wire, and (e) output terminal of described (n-1)th grade, n-th grade and (n+1)th grade drive element of the grid during described renewal frequency exports described sweep signal simultaneously.
According to embodiments of the invention, described clock signal comprises the first clock signal and second clock signal, adjacent described drive element of the grid is controlled by described first clock signal and described second clock signal respectively, and described first clock signal and described second clock signal anti-phase each other.
According to embodiments of the invention, step (b) separately comprises: cut off the clock end of described n-th grade and (n+1)th grade drive element of the grid and the connection of clock signal.
Technical scheme of the present invention provides again a kind of liquid crystal display, and it comprises raster data model substrate and liquid crystal layer.Described raster data model substrate comprises the several pixel cell, N bar sweep trace, N number of drive element of the grid, the first metal wire and the second metal wire that arrange in matrix.Described N bar sweep trace is used for sequentially transmitting N number of sweep signal to several described pixel cell.N number of described drive element of the grid couples in the mode of series connection, each drive element of the grid is connected to sweep trace described in N bar one to one, for sequentially exporting several sweep signal to each sweep trace during a renewal frequency, each drive element of the grid comprises the clock end of receive clock signal, receives the trigger end of the trigger pip of upper level drive element of the grid, for receive upper level drive element of the grid trigger pip, receive the feedback end of the sweep signal of next stage drive element of the grid and be connected to the output terminal of corresponding sweep trace.Described output terminal is used for according to the described trigger pip of described clock signal, described upper level drive element of the grid and the sweep signal of described next stage drive element of the grid, exports described sweep signal to corresponding described sweep trace.Described liquid crystal layer comprises liquid crystal molecule, the rotation be used for according to liquid crystal molecule described in the Voltage Cortrol putting on several described pixel cell.Described first metal wire is not connected each other with described second metal wire.When the output terminal detecting n-th grade of drive element of the grid produces abnormal sweep signal, the output terminal of described n-th grade of drive element of the grid is not connected with between n-th sweep trace, the output terminal of described n-th grade of drive element of the grid is not connected with between the feedback end of (n-1)th grade of drive element of the grid, be not connected between the output terminal of (n-1)th grade of drive element of the grid and the feedback end of the n-th-2 grades drive element of the grid, the output terminal of (n+1)th grade of drive element of the grid is not connected with between (n+1)th sweep trace, and described n-th grade is not connected clock signal with the clock end of (n+1)th grade of drive element of the grid, wherein n is for being less than N, the positive integer of m.Described first metal wire is electrically connected the output terminal of the output terminal of described (n-1)th grade of drive element of the grid, the output terminal of n-th grade of drive element of the grid and (n+1)th grade of drive element of the grid.Described second metal wire is electrically connected the feedback end of the n-th-2 grades drive element of the grid and the feedback end of described (n+1)th grade of drive element of the grid.During described renewal frequency, the output terminal of described (n-1)th grade, n-th grade and (n+1)th grade drive element of the grid exports described sweep signal simultaneously.
According to embodiments of the invention, described clock signal comprises the first clock signal and second clock signal, adjacent described drive element of the grid is controlled by described first clock signal and described second clock signal respectively, and described first clock signal and described second clock signal anti-phase each other.
Compared to prior art, the method that the present invention repairs raster data model substrate detect wherein one-level drive element of the grid output abnormality time, by by the first connecting line, the output terminal of the drive element of the grid at the corresponding levels of exception, its upper level drive element of the grid and next stage drive element of the grid is electrically connected, to export identical sweep signal.The present invention by the method that adjustment raster data model substrate exports, adjusts the sweep signal number of each renewal frequency again.In such event, even if raster data model substrate there is part of grid pole driver element output abnormality, repaired the method for raster data model substrate and the output of adjustment raster data model substrate by the present invention after, this raster data model substrate still can use, and needn't scrap.
In order to further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing, but accompanying drawing only provides reference and explanation use, is not used for being limited the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the present invention uses the liquid crystal display of raster data model substrate.
Fig. 2 is the calcspar of the drive element of the grid of raster data model substrate of the present invention.
Fig. 3 is the method flow diagram that the present invention repairs raster data model substrate.
Fig. 4 is the schematic diagram repairing raster data model substrate.
Fig. 5 is the method flow diagram that the present invention adjusts the output of raster data model substrate.
Embodiment
Refer to Fig. 1, Fig. 1 is the schematic diagram that the present invention uses the liquid crystal display 10 of raster data model (Gatedriveronarray, GOA) substrate.Liquid crystal display 10 comprises controller 14, source electrode driver (sourcedriver) 16, multiple drive element of the grid (gatedrivingunit) 18 (1) ~ 18 (N) and GOA substrate 20.It is parallel to each other that GOA substrate 20 has the first side 2032, side 2031, second and the 3rd side, side 2033, first 2031 and the second side 2032, and the 3rd side 2033 is perpendicular to the first side 2031 and the second side 2032.GOA substrate 20 comprises pixel array region 203 and is positioned at the circuit rest area 201 of pixel array region 203.Multiple drive element of the grid 18 (1) ~ 18 (N) (that is GOA circuit unit) is placed on circuit rest area 201.Source electrode driver 16 is positioned at the 3rd side 2033 of GOA substrate 20, is electrically connected to several pixel cells 22 of pixel array region 203 by flexible circuit board 24.When the clock signal that controller 14 produces and GOA control signal are sent to drive element of the grid 18 (1) ~ 18 (N), drive element of the grid 18 (1) ~ 18 (N) can produce the pixel cell 22 of sweep signal to pixel array region 203, at the same time, source electrode driver 16 can export the pixel cell 22 of gray scale voltage to pixel array region 203.GOA control signal is used for the sweep signal number that control gate driver element 18 (1) ~ 18 (N) exports during a renewal frequency.
Multiple drive element of the grid 18 (1) ~ 18 (N) shown in Fig. 1 are that series winding connects.Several drive element of the grid 18 (1) ~ 18 (N) is connected to N bar sweep trace G (1) ~ G (N) one to one, for sequentially exporting several sweep signal to each sweep trace G (1) ~ G (N) during a renewal frequency with the multirow pixel cell 22 of switch on pixel array area 203.For example, the display panels of 1080 × 1920 resolution has 1920 drive element of the grid 18 (N), and N is 1920.For the renewal frequency of the liquid crystal display 10 of 1080 × 1920 resolution and 60Hz, the displaying time of each picture is about 1/60=16.67ms.So the pulse of each sweep signal is 16.67ms/1920=8.68 μ s.Source electrode driver 16, then within the time of this 8.68 μ s, by pixel cell 22 discharge and recharge to required voltage, to adjust the rotation of the liquid crystal molecule in liquid crystal layer, and then demonstrates corresponding GTG.
Refer to Fig. 2, Fig. 2 is the calcspar of the drive element of the grid 18 (n) of raster data model substrate 14 of the present invention.Drive element of the grid 18 (n) is used for according to clock signal C K and GOA control signal, the drive element of the grid 18 (n) that sweep signal gives the corresponding n-th line in pixel array region 203 is exported, wherein n=1 ~ 1920 by sweep trace G (n).Each drive element of the grid 18 (n) comprise the first power voltage terminal VSS of reception first fixed power source voltage, the second source voltage end VDD receiving the second fixed power source voltage, receive clock signal clock end CK, receive the trigger pip of upper level drive element of the grid 18 (n-1) trigger end ST, receive the sweep signal of next stage drive element of the grid 18 (n+1) feedback end RT and be connected to the output terminal OUT of corresponding sweep trace G (n).The output terminal OUT of each drive element of the grid 18 (n) is used for, according to the clock signal CKV 1 (or CKV2) of clock end CK, the trigger pip of upper level drive element of the grid 18 (n-1) and the sweep signal of next stage drive element of the grid 18 (n+1), exporting sweep signal to corresponding sweep trace G (n).
Every M drive element of the grid 18 (n) is controlled by M clock signal, in the present embodiment, clock end CK receive clock signal CKV1 and CKV2 respectively of two adjacent drive element of the grid 18 (n), 18 (n+1), clock signal CKV 1 and CKV2 are anti-phase each other.After the trigger end ST of first order drive element of the grid 18 (1) receives initial pulse, drive element of the grid 18 (1) will export sweep signal pulse according to clock signal CKV 1 in output terminal OUT.Until after the feedback end RT of drive element of the grid 18 (1) receives the sweep signal that next stage drive element of the grid 18 (2) exports, drive element of the grid 18 (1) just stops exporting sweep signal.Next, second level drive element of the grid 18 (2), after trigger end ST receives the sweep signal pulse that previous stage drive element of the grid 18 (1) exports, exports the sweep signal pulse of this drive element of the grid 18 (2) in output terminal OUT according to clock signal CKV 2.Until after the feedback end RT of drive element of the grid 18 (2) receives the sweep signal that next stage drive element of the grid 18 (3) exports, drive element of the grid 18 (2) just stops exporting sweep signal.The rest may be inferred, each drive element of the grid 18 (n), after trigger end ST receives the sweep signal that previous stage drive element of the grid 18 (n-1) exports, exports the sweep signal pulse of this each drive element of the grid 18 (n) in output terminal OUT according to corresponding clock signal CKV 1 (or CKV2).Until after the feedback end RT of drive element of the grid 18 (n) receives the sweep signal that next stage drive element of the grid 18 (n+1) exports, drive element of the grid 18 (n) just stops exporting sweep signal.This sweep signal pulse is used for opening the transistor of corresponding pixel cell 22.
Refer to and consult Fig. 3 and Fig. 4 in the lump, Fig. 3 is the method flow diagram that the present invention repairs raster data model substrate 14.Fig. 4 is the schematic diagram repairing raster data model substrate 14.The method that the present invention repairs raster data model substrate 14 comprises the steps:
Step 300: provide the first metal wire 41 and the second metal wire 42 are not electrically connected electric signal in raster data model substrate 20, first metal wire 41 with the second metal wire 42 and are not connected each other.
Before not repairing, first metal wire 41 and have insulator separation between the second metal wire 42 and each drive element of the grid, therefore the first metal wire 41 and the second metal wire 42 be not electrically connected drive element of the grid simultaneously the first metal wire 41 cross over but do not contact N bar sweep trace G (1) ~ G (N).In addition, the first metal wire 41 is also independent of one another with the second metal wire 42 and is not connected the metal wire of any electric signal.
Step 302: whether the drive element of the grid of detecting raster data model substrate 20 has abnormal output.If so, then carry out step 304.
Step 304: when the output terminal OUT detecting n-th grade of drive element of the grid 18 (n) produces abnormal sweep signal, connection between the feedback end RT of the connection between output terminal OUT and n-th sweep trace G (n) of cut-out n-th grade of drive element of the grid 18 (n) and output terminal OUT and the (n-1)th grade drive element of the grid 18 (n-1) of n-th grade of drive element of the grid 18 (n), cut off the connection between the output terminal OUT of (n-1)th grade of drive element of the grid 18 (n-1) and the feedback end RT of the n-th-2 grades drive element of the grid 18 (n-2), and the connection between output terminal OUT and (n+1)th sweep trace G (n+1) of cut-out (n+1)th grade of drive element of the grid 18 (n+1), wherein n is the positive integer being less than N.
Now, the clock end CK of n-th grade of drive element of the grid 18 (n) and the connection of clock signal CKV 1 can be cut off and cut off the clock end CK of (n+1)th grade of drive element of the grid 18 (n+1) and the connection of clock signal CKV 2.
Step 306: make the output terminal OUT of (n-1)th grade of drive element of the grid 18 (n-1) by the first metal wire 41, the output terminal OUT of output terminal OUT and (n+1)th grade drive element of the grid 18 (n+1) of n-th grade of drive element of the grid 18 (n) is electrically connected.
Before not repairing, between the first metal wire 41 and each drive element of the grid, there is insulator separation.So can by the insulation course between the output terminal OUT of laser fusion first metal wire 41 and drive element of the grid 18 (n-1), 18 (n), 18 (n+1), make the output terminal OUT of (n-1)th grade of drive element of the grid 18 (n-1), the output terminal OUT of output terminal OUT and (n+1)th grade drive element of the grid 18 (n+1) of n-th grade of drive element of the grid 18 (n) is electrically connected to each other by the first metal wire 41.
Step 308: made the feedback end RT of feedback end RT and the (n+1)th grade drive element of the grid 18 (n+1) of the n-th-2 grades drive element of the grid 18 (n-2) be electrically connected by the second metal wire.
Before not repairing, between the second metal wire 42 and each drive element of the grid, there is insulator separation.So can, by the insulation course between the feedback end RT of laser fusion second metal wire 42 and drive element of the grid 18 (n-2), 18 (n+1), make the second metal wire make the feedback end RT of feedback end RT and the (n+1)th grade drive element of the grid 18 (n+1) of the n-th-2 grades drive element of the grid 18 (n-2) be electrically connected to each other by the second metal wire 42.
Step 310: the output terminal of described (n-1)th grade, n-th grade and (n+1)th grade drive element of the grid exports described sweep signal simultaneously during described renewal frequency.
Raster data model substrate 20 after being repaired by the present embodiment, the sweep signal that drive element of the grid 18 (n) and 18 (n+1) exports is identical with drive element of the grid 18 (n-1), that is the sweep signal that sweep trace G (n-1), G (n), G (n+1) export simultaneously can open corresponding pixel cell 22 simultaneously.Therefore the sweep signal number exported during using the liquid crystal display 10 after repairing to need to adjust renewal frequency.For example, for the renewal frequency of the liquid crystal display 10 of 1080 × 1920 resolution and 60Hz, it has 1920 drive element of the grid 18 (1) ~ 18 (N), and in 16.67ms (1/60 second), 1920 drive element of the grid 18 (1) ~ 18 (N) sequentially export 1920 sweep signals.But when one of them drive element of the grid 18 (n) output abnormality, by above-mentioned restorative procedure, the sweep signal that drive element of the grid 18 (n-1), 18 (n), 18 (n+1) export is identical.So drive element of the grid 18 (1) ~ 18 (N) must be adjusted to 1918 (=1920-2) in the sweep signal number that 16.67ms (renewal frequency) period exports by controller 14.
See also Fig. 3-Fig. 5, Fig. 5 is the method flow diagram that the present invention adjusts the output of raster data model substrate.The method that the present invention adjusts raster data model substrate 14 comprises the steps:
Step 500: provide M adjustment modes, M described adjustment modes controls described raster data model substrate respectively and export (N-M × 2) individual sweep signal during a renewal frequency, and wherein M is less than N, and N, M are all positive integer.
A controller 14 store M adjustment modes, M described adjustment modes difference control gate drives substrate 20 to export (N-M × 2) individual sweep signal during renewal frequency.For example, for the liquid crystal display 10 of 1080 × 1920 resolution, the adjustment modes that controller 14 stores comprises the 3rd adjustment modes of first adjustment modes that can export 1920 sweep signals during renewal frequency, the second adjustment modes exporting 1918 (1920-1 × 2) individual sweep signal, output 1916 (1920-2 × 2) individual sweep signal, by that analogy.
Step 502: detecting produces the number of the drive element of the grid of abnormal sweep signal.
Step 504: when the output terminal detecting m drive element of the grid produces abnormal sweep signal, control described raster data model substrate and export (N-m × 2) individual sweep signal during described renewal frequency, wherein m is the positive integer being less than or equal to M.
Wherein step 504 separately comprises the step of repairing raster data model substrate 20, because the step of repairing raster data model substrate 20 is identical with the step 300-step 310 shown in Fig. 3, does not separately repeat at this.
After m drive element of the grid of raster data model substrate 20 is repaired, controller 14 can be adjusted, make it during renewal frequency, export (N-m × 2) individual sweep signal.For example, if there are two drive element of the grid output abnormalities, first this two abnormal drive element of the grid are repaired according to the step 300-step 310 shown in Fig. 3.Then the GOA control signal that controller 14 provides corresponds to the 3rd adjustment modes, makes 1920 drive element of the grid during renewal frequency, export 1916 sweep signals.
The method that the present invention repairs raster data model substrate detect wherein one-level drive element of the grid output abnormality time, by by the first connecting line, the output terminal of the drive element of the grid at the corresponding levels of exception, its upper level drive element of the grid and next stage drive element of the grid is electrically connected, to export identical sweep signal.The present invention by the method that adjustment raster data model substrate exports, adjusts the sweep signal number of each renewal frequency again.In such event, even if raster data model substrate there is part of grid pole driver element output abnormality, repaired the method for raster data model substrate and the output of adjustment raster data model substrate by the present invention after, this raster data model substrate still can use, and needn't scrap.
In sum; although the present invention discloses as above with preferred embodiment; but this preferred embodiment is also not used to limit the present invention; the those of ordinary skill in this field; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (10)
1. repair a method for raster data model substrate, described raster data model substrate comprises:
The pixel cell of several arrangement in matrix;
N bar sweep trace, be used for sequentially transmitting N number of sweep signal to several described pixel cell, N is positive integer; And
N number of drive element of the grid, N number of described drive element of the grid couples in the mode of series connection, each drive element of the grid is connected to sweep trace described in N bar one to one, and for sequentially exporting several sweep signal to each sweep trace during a renewal frequency, each drive element of the grid comprises:
Clock end, for receive clock signal;
Trigger end, for receiving the trigger pip of upper level drive element of the grid;
Feedback end, for receiving the sweep signal of next stage drive element of the grid; And
Output terminal, is connected to corresponding sweep trace, for according to the described trigger pip of described clock signal, described upper level drive element of the grid and the sweep signal of described next stage drive element of the grid, exports described sweep signal to corresponding described sweep trace,
It is characterized in that, described method comprises:
A () provides the first metal wire and the second metal wire in described raster data model substrate, described first metal wire is not electrically connected electric signal with described second metal wire and is not connected each other;
B () is when the output terminal detecting n-th grade of drive element of the grid produces abnormal sweep signal, the connection cut off the connection between the output terminal of connection between the output terminal of described n-th grade of drive element of the grid and n-th sweep trace and described n-th grade of drive element of the grid and the feedback end of (n-1)th grade of drive element of the grid, connection between the output terminal cutting off (n-1)th grade of drive element of the grid and the feedback end of the n-th-2 grades drive element of the grid and cut off between the output terminal of (n+1)th grade of drive element of the grid and (n+1)th sweep trace, wherein n is the positive integer being less than N;
C () makes the output terminal of the output terminal of described (n-1)th grade of drive element of the grid, the output terminal of n-th grade of drive element of the grid and (n+1)th grade of drive element of the grid be electrically connected by described first metal wire; And
D () makes the feedback end of the feedback end of the n-th-2 grades drive element of the grid and described (n+1)th grade of drive element of the grid be electrically connected by described second metal wire.
2. the method for claim 1, it is characterized in that, described clock signal comprises the first clock signal and second clock signal, adjacent described drive element of the grid is controlled by described first clock signal and described second clock signal respectively, and described first clock signal and described second clock signal anti-phase each other.
3. method according to claim 1, is characterized in that, step (b) separately comprises:
Cut off the clock end of described n-th grade and (n+1)th grade drive element of the grid and the connection of clock signal.
4. method according to claim 1, is characterized in that, after step (d), described method separately comprises:
E () sequentially exports N-2 sweep signal during described renewal frequency.
5. adjust the method that raster data model substrate exports, described raster data model substrate comprises:
The pixel cell of several arrangement in matrix;
N bar sweep trace, be used for sequentially transmitting N number of sweep signal to several described pixel cell, N is positive integer; And
N number of drive element of the grid, N number of described drive element of the grid couples in the mode of series connection, and each drive element of the grid is connected to sweep trace described in N bar one to one,
It is characterized in that, described method comprises:
There is provided M adjustment modes, M described adjustment modes controls described raster data model substrate respectively and export (N-M × 2) individual sweep signal during a renewal frequency, and wherein M is the positive integer being less than N; And
When the output terminal detecting m drive element of the grid produces abnormal sweep signal, control described raster data model substrate and export (N-m × 2) individual sweep signal during described renewal frequency, wherein m is the positive integer being less than or equal to M.
6. method as claimed in claim 5, it is characterized in that, each drive element of the grid comprises:
Clock end, for receive clock signal;
Trigger end, for receiving the trigger pip of upper level drive element of the grid;
Feedback end, for receiving the sweep signal of next stage drive element of the grid; And
Output terminal, is connected to corresponding sweep trace, for according to the described trigger pip of described clock signal, described upper level drive element of the grid and the sweep signal of described next stage drive element of the grid, exports described sweep signal to corresponding described sweep trace,
When the described output terminal when detecting m drive element of the grid producing abnormal sweep signal, controlling the step that described raster data model substrate exports (N-m × 2) individual sweep signal during described renewal frequency and comprising:
A () provides the first metal wire and the second metal wire in described raster data model substrate, described first metal wire is not electrically connected electric signal with described second metal wire and is not connected each other;
B () is when the output terminal detecting n-th grade of drive element of the grid produces abnormal sweep signal, cut off the connection between the output terminal of connection between the output terminal of described n-th grade of drive element of the grid and n-th sweep trace and described n-th grade of drive element of the grid and the feedback end of (n-1)th grade of drive element of the grid, cut off the connection between the output terminal of (n-1)th grade of drive element of the grid and the feedback end of the n-th-2 grades drive element of the grid, and the connection cut off between the output terminal of (n+1)th grade of drive element of the grid and (n+1)th sweep trace, wherein n is for being less than N, the positive integer of m,
C () makes the output terminal of the output terminal of described (n-1)th grade of drive element of the grid, the output terminal of n-th grade of drive element of the grid and (n+1)th grade of drive element of the grid be electrically connected by described first metal wire;
D () makes the feedback end of the feedback end of the n-th-2 grades drive element of the grid and described (n+1)th grade of drive element of the grid be electrically connected by described second metal wire; And
E () output terminal of described (n-1)th grade, n-th grade and (n+1)th grade drive element of the grid during described renewal frequency exports described sweep signal simultaneously.
7. method as claimed in claim 6, it is characterized in that, described clock signal comprises the first clock signal and second clock signal, adjacent described drive element of the grid is controlled by described first clock signal and described second clock signal respectively, and described first clock signal and described second clock signal anti-phase each other.
8. method according to claim 6, is characterized in that, step (b) separately comprises:
Cut off the clock end of described n-th grade and (n+1)th grade drive element of the grid and the connection of clock signal.
9. a liquid crystal display, it comprises:
Raster data model substrate, it comprises:
The pixel cell of several arrangement in matrix;
N bar sweep trace, be used for sequentially transmitting N number of sweep signal to several described pixel cell, N is positive integer; And
N number of drive element of the grid, N number of described drive element of the grid couples in the mode of series connection, and each drive element of the grid is connected to sweep trace described in N bar one to one, and each drive element of the grid comprises:
Clock end, for receive clock signal;
Trigger end, for receiving the trigger pip of upper level drive element of the grid;
Feedback end, for receiving the sweep signal of next stage drive element of the grid; And
Output terminal, is connected to corresponding sweep trace, for according to the described trigger pip of described clock signal, described upper level drive element of the grid and the sweep signal of described next stage drive element of the grid, exports described sweep signal to corresponding described sweep trace; And
Liquid crystal layer, comprises liquid crystal molecule, the rotation be used for according to liquid crystal molecule described in the Voltage Cortrol putting on several described pixel cell;
It is characterized in that, described raster data model substrate separately comprises:
First metal wire and the second metal wire, described first metal wire is not connected each other with described second metal wire;
When the output terminal detecting n-th grade of drive element of the grid produces abnormal sweep signal, the output terminal of described n-th grade of drive element of the grid is not connected with between n-th sweep trace, the output terminal of described n-th grade of drive element of the grid is not connected with between the feedback end of (n-1)th grade of drive element of the grid, be not connected between the output terminal of (n-1)th grade of drive element of the grid and the feedback end of the n-th-2 grades drive element of the grid, the output terminal of (n+1)th grade of drive element of the grid is not connected with between (n+1)th sweep trace, and described n-th grade is not connected clock signal with the clock end of (n+1)th grade of drive element of the grid, wherein n is for being less than N, the positive integer of m,
Described first metal wire is electrically connected the output terminal of the output terminal of described (n-1)th grade of drive element of the grid, the output terminal of n-th grade of drive element of the grid and (n+1)th grade of drive element of the grid;
Described second metal wire is electrically connected the feedback end of the n-th-2 grades drive element of the grid and the feedback end of described (n+1)th grade of drive element of the grid; And
During described renewal frequency, the output terminal of described (n-1)th grade, n-th grade and (n+1)th grade drive element of the grid exports described sweep signal simultaneously.
10. liquid crystal display as claimed in claim 9, it is characterized in that, described clock signal comprises the first clock signal and second clock signal, adjacent described drive element of the grid is controlled by described first clock signal and described second clock signal respectively, and described first clock signal and described second clock signal anti-phase each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510739886.6A CN105259681B (en) | 2015-11-04 | 2015-11-04 | It repairs raster data model substrate and adjusts the method and liquid crystal display of its output |
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| CN201510739886.6A CN105259681B (en) | 2015-11-04 | 2015-11-04 | It repairs raster data model substrate and adjusts the method and liquid crystal display of its output |
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| CN105259681B (en) | 2018-05-18 |
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