CN101387774B - LCD, failure recovery method thereof and signal transmission method of display - Google Patents
LCD, failure recovery method thereof and signal transmission method of display Download PDFInfo
- Publication number
- CN101387774B CN101387774B CN2007101496837A CN200710149683A CN101387774B CN 101387774 B CN101387774 B CN 101387774B CN 2007101496837 A CN2007101496837 A CN 2007101496837A CN 200710149683 A CN200710149683 A CN 200710149683A CN 101387774 B CN101387774 B CN 101387774B
- Authority
- CN
- China
- Prior art keywords
- data
- sub
- lcd
- repairing
- channel circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
A liquid crystal display device comprises a controller, a source drive circuit, a first data line, a second data line and a data transmission path, wherein the controller outputs a first and a second data frame, the source drive circuit receives and outputs the first and the second data frame, which comprises a first data channel circuit, a second data channel circuit and a first repair channel circuit, the first and the second data channel circuits respectively outputs first and second sub pixel data, the first repair channel circuit is connected with the controller for receiving the first repair data, the fist and the second data lines are respectively connected with the first and the second data channel circuits for receiving the first and the second sub pixel data, the data transmission path comprises a repair line for connecting the first repair channel circuit with the first or the second data line, and the repair line is crossed with the first and the second data line.
Description
Technical field
The present invention is relevant for a kind of LCD, and particularly has the repairing passage relevant for a kind of, and can repair the LCD of the open defect of passage repairing LCD by this.
Background technology
In the liquid crystal panel of traditional LCD, many patch cords (RedundantLine) need be set, with when the data line generation open defect (Open Defect) of LCD, by mode, carry out data modification with patch cord and the data line laser bonding (Laser Welding) that opens circuit.
Please refer to Fig. 1, the synoptic diagram of repair operation is carried out in its expression to the data line open defect of conventional liquid crystal.In LCD 100, when open defect took place data line 102, data line 102 formed normal end 102a and treats patch end 102b.This moment the operator with normal end 102a and treat patch end 102b respectively with patch cord 104a and 104b laser bonding, so, the sub-pixel data of corresponding data channel output can be by being exported to and treated patch end 102b by patch cord 104a and 104b, repairing operational amplifier (Repair Operational Amplifier) 108 data transfer paths that form, with driving and the sub-pixel for the treatment of that patch end 102b is corresponding in the source electrode driver 106.So, reach repair operation to the data line open defect.
Yet for the data channel of the data line that drives aforementioned generation open defect, the aforementioned data transmission path forms the cabling of a length greater than data line length, and it forms the bigger driving load of this data channel accordingly.So, will make this data channel that the problem of data-driven scarce capacity take place easily.At display panels constantly when large scale develops, the number of the patch cord that conventional liquid crystal is required and wiring path length will with increase.So, will cause aforementioned data driving force problem remarkable more.Simultaneously, the wiring path of the patch cord number of increase and prolongation will make the number of times of laser bonding increase.So, will make the cost of LCD increase.
Summary of the invention
In view of this, the invention provides a kind of LCD and data transmission method thereof.LCD of the present invention have the number of patch cord less, repair short, the required less and lower-cost advantage of laser bonding number of times when repairing of the data transfer path length that forms.
Propose a kind of LCD according to the present invention, comprising: a controller, in order to export at least one first and second frame data; The one source pole driving circuit, in order to receive these first and second frame data and corresponding first and second sub-pixel data of output, this source electrode drive circuit comprises: one first data channel circuit, in order to export this first sub-pixel data; One second data channel circuit is in order to export this second sub-pixel data; Reach one first and repair channel circuit, be connected to this controller, repair data in order to receive one first; One first and second data line is connected to this first and second data channel circuit respectively, in order to receive this first and second sub-pixel data; An and data transfer path, comprise a patch cord, in order to this first repairing channel circuit selectivity is connected to one of this first and second data line, this patch cord and this first and second data line are staggered, wherein, this source electrode drive circuit comprises that also one second repairs a channel circuit and a channel selection circuit, this first and second repair channel circuit and export one first and one second respectively and repair sub-pixel data, and by this channel selection circuit selectivity export this first and this second repairing sub-pixel data one of them to this patch cord.
A kind of troubleshooting methodology of LCD is proposed according to the present invention, this LCD comprises the one source pole driver, a data line that is connected with this source electrode driver with first direction and with second direction and the staggered patch cord of this data line, wherein this source electrode driver comprises a data channel circuit and one first repairing channel circuit, repair sub-pixel data in order to export a sub-pixel data and one first respectively, this source electrode driver comprises that also one second repairs a channel circuit and a channel selection circuit, this second repairing channel circuit is exported one second and is repaired sub-pixel data, and by this channel selection circuit selectivity export this first and this second repair sub-pixel data one of them to this patch cord, wherein this patch cord is electrically connected to this repairing channel circuit, wherein this data line comprises the normal part and a part to be repaired that electricity is isolated, should normal part be connected to this data channel circuit, this troubleshooting methodology comprises: be electrically connected this patch cord and this part to be repaired; Export this first and this second repair sub-pixel data one of them to this part to be repaired, wherein this first or this second to repair sub-pixel data identical with this sub-pixel data.
A kind of source electrode driver is proposed according to the present invention, be applicable to a LCD, this LCD comprises first and second data line, a controller and a data transfer path, this controller is in order to export first frame data, second frame data and the first repairing data, this data transfer path comprises and the staggered patch cord of this first and second data line, this source electrode driver comprises: one first data channel circuit, in order to receiving this first frame data, and export one first sub-pixel data to this first data line; One second data channel circuit in order to receiving this second frame data, and is exported one second sub-pixel data to this second data line; And one first repair channel circuit, first repairs data in order to receive this, and export one first and repair sub-pixel data to this data transfer path; Wherein this source electrode driver comprises that also one second repairs a channel circuit and a channel selection circuit, this second repairing channel circuit is repaired data in order to receive one second, and export one second and repair sub-pixel data, this channel selection circuit be coupled to this first and second repair channel circuit, in order to receive this first and second repair sub-pixel data, and selectivity export this first and this second repair sub-pixel data one of them to this patch cord.
A kind of LCD is proposed according to the present invention, comprise: the one source pole driving circuit, in order to receive first and second frame data and corresponding first and second sub-pixel data of output, this source electrode drive circuit comprises: one first data channel circuit, in order to export this first sub-pixel data; One second data channel circuit is in order to export this second sub-pixel data; Reach one first and repair channel circuit, repair data in order to receive one first; This repairing channel circuit comprises a latch, a digital to analog converter and an output buffer; One first and second data line is connected to this first and second data channel circuit respectively, in order to receive this first and second sub-pixel data; And a data transfer path, comprise a patch cord, in order to this first repair channel circuit selectivity be connected to this first and second data line one of them, this patch cord and this first and second data line interlock; Wherein this source electrode drive circuit comprises that also one second repairs a channel circuit and a channel selection circuit, this first and second repairing channel circuit is exported one first respectively and is repaired sub-pixel data and one second repairing sub-pixel data, and by this channel selection circuit receive this first and this second repair sub-pixel data, and optionally export this first and this second repair sub-pixel data one of them to this data transfer path.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail as follows:
Description of drawings
Fig. 1 represents the data line open defect of conventional liquid crystal is carried out the synoptic diagram of repair operation.
Fig. 2 represents the circuit diagram according to the LCD of first embodiment of the invention.
Fig. 3 represents the process flow diagram according to the data transmission method of first embodiment of the invention.
Fig. 4 represents the process flow diagram according to the method for transmitting signals of time schedule controller of the present invention.
Fig. 5 represents another circuit diagram of the LCD of present embodiment.
Fig. 6 represents another circuit diagram of the LCD of present embodiment.
Fig. 7 represents the circuit diagram according to the LCD of second embodiment of the invention.
The circuit arrangement map of the source electrode driver of Fig. 8 presentation graphs 7.
Another circuit arrangement map of the source electrode driver of Fig. 9 presentation graphs 7.
The main element symbol description
100,200,200 ', 200 ", 400: LCD
102,208,208 ", 408,208 ': data line
102a, 208 ' a, 408 ' a: normal end
102b, 208 ' b, 408 ' b: treat patch end
104a, 104b, 210,410: patch cord
106,206 (1)-206 (10), 406 (1)-406 (10): source electrode driver
108,202b, 406d, 506,508,606,608: repair operational amplifier
109,209 (1)-209 (10), 409 (1)-409 (10): flexible circuit board
202,402: printed circuit board (PCB)
202a, 402a: time schedule controller
204,404: substrate
204a, 204a ', 204a ", 404a: display panels
206a, 206a ", 406a, 502: data channel
206b1,206b2,206b1 ", 206b2 ", 406b1,406b2,504: repair passage
206c, 406c: control pin
602r, 602g, 602b: red, green, blue data passage
604r, 604g, 604b: red, green, the blue passage of repairing
Embodiment
When LCD of the present invention is selected the higher source electrode driver of channel circuit number for use, can in the higher source electrode driver of these a little channel circuit numbers, design and repair channel circuit.So, when in the LCD of the present invention during arbitrary data line generation open defect, can repair the data line that opens circuit by repairing channel circuit.
First embodiment
Please refer to Fig. 2, its expression is according to the circuit diagram of the LCD of first embodiment of the invention.LCD 200 comprises printed circuit board (PCB) (Printed Circluit Board, PCB) 202, substrate 204, source electrode driver (Source Driver) 206 (1)-206 (10) and flexible circuit board (FlexiblePrinted Circuit, FPC) 209 (1)-209 (10).Substrate 204 comprises display panels 204a, comprising many data lines 208, patch cord (Redundant Line) 210 and pel array (not shown).The resolution of display panels 204a for example is 1280 * 1024 pixels (Pixel), and each pixel for example comprises three sub-pixels of redness, green and blueness (RGB).Printed circuit board (PCB) 202 comprises controller and repairs operational amplifier (Repair Operational Amplifier) 202b that its middle controller for example is time schedule controller (Time Controller, TCON) 202a.Has source electrode driver 206 (1)-206 (10) in the flexible circuit board 209 (1)-209 (10) respectively.
The source electrode driver 206 (1)-206 (10) of present embodiment comprises 386 channel circuits (Channel Circuit), with source electrode driver 206 (1) is example, wherein for example comprises 384 data channel circuits (Data Channel Circuit) 206a and repairs channel circuit (Repair ChannelCircuit) 206b1.The end of data channel circuit 206a is connected to time schedule controller 202a with the sub-pixel data of frames received according to correspondence among the FS (1), and the other end of data channel circuit 206a is connected to corresponding data line 208.Data channel circuit 206a is in order to export aforementioned sub-pixel data to corresponding data line 208, and is like this, to drive sub-pixel corresponding on this data line 208.
Repair channel circuit 206b1 and be connected, be used to receive when repairing data RP, repair sub-pixel data via data transfer path output with data transfer path.Data transfer path comprises patch cord 210 and repairs operational amplifier 202b, repair the input end that channel circuit 206b1 is connected to operational amplifier 202b, the output terminal of repairing operational amplifier 202b is connected to patch cord 210, and wherein patch cord 210 is crisscross arranged each other with data line 208.For example patch cord 210 is arranged on each data line 208 alternately, and patch cord 210 also can optionally be electrically connected to each other in response to operator's Action Events with data line 208.
When aforementioned situation takes place, the operator carries out corresponding Action Events makes patch cord 210 be connected with the patch end 208 ' b that treats of data line 208 ', so, repairing channel circuit 206b1 can be connected with treating patch end 208 ' b by the data transfer path that comprises patch cord 210 and repairing operational amplifier 202b.The operator more provides by programming operation control timing controller 202a and repairs data RP to source electrode driver 206 (1), wherein repairs data RP and equals frame data FS (1).Repair channel circuit 206b1 and receive and repair among the data RP repairing sub-pixel data corresponding, and it is exported via data transfer path treat patch end 208 ' b with data line 208 '.The data channel circuit 206a that wherein repairs correspondence in sub-pixel data and the source electrode driver 206 (1) exports the sub-pixel data of data line 208 ' to for equating.So, former providing to treating that patch end 208 ' b can provide to treating patch end 208 ' b by aforementioned operation with the sub-pixel data that drives corresponding sub-pixel.So, with effectively with the sub-pixel data of correspondence drive be positioned at treat patch end 208 ' b sub-pixel to reach the effect of repairing data line 208 '.
Wherein time schedule controller 202a for example enables enabling of (Data Enable) signal in data side by side provides frame data FS (1)-FS (10) respectively to corresponding source electrode driver 206 (1)-206 (10) in the cycle.The time schedule controller 202a of present embodiment is programmed control and repairs data RP to time schedule controller 206 (1) to export afterwards at output frame data FS (1)-FS (10).
Source electrode driver 206 (1) more is provided with passage control pin (ENREACH Pin) 206c, and the operator can enable by channel circuit control pin 206c effectively and repair channel circuit 206b1, to carry out aforesaid repair operation.Though only comprise that with source electrode driver 206 (1) situation of repairing a channel circuit 206b1 and a data transfer path is that example explains in the present embodiment, yet, source electrode driver 206 (1) is not limited to comprise one and repairs channel circuit and a data transfer path, and also can comprise two or more repairing channel circuits and data transfer path, respectively the data line of the generation open defect more than two and two is repaired.For example the source electrode driver 206 (1) of present embodiment also comprises repairing channel circuit 206b2, and it can be by coming the data line of any generation open defect in the data line 208 is repaired with repairing channel circuit 206b1 identical operations.
The LCD 200 of present embodiment can be by comprising that the data transfer path of repairing operational amplifier 202b and patch cord 210 connect repairing channel circuit 206b1 in the source electrode driver 206 (1) and treat patch end 208 ' b to the data line 208 ' that open defect takes place.The LCD 200 of present embodiment also can be by programming to time schedule controller 202a, it is provided repair data RP, to come to repair sub-pixel data to treating patch end 208 ' b via repairing channel circuit 206b1 accordingly via data transfer path output to time schedule controller 206 (1).This repairing sub-pixel data equals the former sub-pixel data that exports data line 208 ' via the data channel circuit 206a of correspondence to.So, the disclosed LCD 200 of present embodiment can be passed through a patch cord 210 and a laser bonding, reaches the effect of repairing data line 208 '.Therefore the disclosed LCD 200 of present embodiment can reduce the length of number, minimizing laser bonding number of times and the shortening patch cord cabling of patch cord effectively.
In addition, the LCD 200 of the present embodiment normal end 208 ' a that drives of the data channel circuit 206a by correspondence and repair channel circuit 206b1 and data transfer path drives and treats patch end 208 ' b respectively.So, with respect to conventional liquid crystal, the LCD 200 of present embodiment can reduce the driving load of corresponding data channel circuit 206a effectively.
Please refer to Fig. 3, its expression is according to the process flow diagram of the troubleshooting methodology of the LCD of first embodiment of the invention.At first, be electrically connected patch cord 210 and treat patch end 208 ' b, repairing channel circuit 206b1 can be connected to by data transfer path treat patch end 208 ' b as step 302.Wherein for example the mode by laser bonding is electrically connected patch cord 210 and treats patch end 208 ' b.As step 304, time schedule controller 202a is carried out programming operation control afterwards, so that its output is repaired data RP to source electrode driver 206 (1).After step 304, more for example comprise step 306, enable by passage control pin 206c and repair channel circuit 206b1.Repair channel circuit 206b1 and receive repairing data RP, and repair sub-pixel data to treating patch end 208 ' b via data transfer path output accordingly.So, export to and treat patch end 208 ' b via repairing channel circuit 206b1 and data transfer path will repair sub-pixel data, to drive corresponding sub-pixel.Wherein, step 306 also can operate in after the step 302.
Please refer to Fig. 4, its expression is according to the process flow diagram of the method for transmitting signals of time schedule controller of the present invention.At first as step 308, the user carries out programming Control to time schedule controller 202a, repairs data RP with additional transmissions in the data transfer operation of its image output data FS (1)-FS (10).For example time schedule controller 202a exports afterwards to source electrode driver 206 (1)-206 (10) respectively at output frame data FS (1)-FS (10) and repairs data RP to source electrode driver 206 (1).Then as step 310, time schedule controller 202a exports afterwards in output frame data FS (1)-FS (10) and repairs data RP, and wherein, this is repaired data RP and equates with frame data FS (1).
In aforementioned operation, the Action Events that the operator carries out for example is laser bonding patch cord 210 and the operation for the treatment of patch end 208 ' b, and it is connected to each other.The time schedule controller 202a of present embodiment for example is single programmable (One Time Programmable, an OTP) controller.So, when display panels 204a in manufacture process the open defect of data line takes place, can carry out programming Control to time schedule controller 202a, so that its output is repaired data RP to source electrode driver 206 (1), so, repaired corresponding data line 208 ' since.
In the present embodiment, though only comprise that with source electrode driver 206 (1)-206 (10) 386 channel circuits are that example explains with the situation that driving resolution equals the display panels 204a of 1280*1024, yet, disclosed LCD 200 of present embodiment and data transmission method thereof are not limited to the limitation of the sub-pixel structure of above-mentioned resolution and pixel cell, the channel circuit number of source electrode driver 206 (1)-206 (10) also is not limited to 386, and repairing channel circuit wherein and data channel circuit number are also unrestricted.For example, source electrode driver 206 (1)-206b (10) comprise 390 channel circuits, repair channel circuit and 384 data channel circuits comprising 6.Though and present embodiment is that example explains with the situation that a repairing operational amplifier is connected respectively with source electrode driver 106 (1)-106 (10) only, right source electrode driver 106 (1)-106 (10) also can be respectively and two, or plural repairing operational amplifier is connected.
Though only comprise that with data transfer path the situation of repairing operational amplifier 202b and patch cord 210 is that example explains in the present embodiment, yet, the data transfer path of present embodiment is not limited to only comprise aforesaid repairing operational amplifier 202b and patch cord 210, and the length of going back the viewdata transmission path additionally is provided with output buffer (Output Buffer) and promotes the data-driven ability of repairing channel circuit 206b1.
Though only with the data line in the source electrode driver 206 (1) 208 ' open defect takes place in the present embodiment, and the operator comes its example that is operating as of repairing is explained by the repairing channel circuit 206b1 in the source electrode driver 206 (1), yet the repair operation of other source electrode drivers 206 (2)-206 (10) can be analogized according to the repair operation of source electrode driver 206 (1) and obtains.And the circuit structure of source electrode driver 206 (2)-206 (10) also can be analogized according to the narration of source electrode driver 206 (1) and obtained.
Though only comprise channel circuit control pin 206c in the present embodiment with source electrode driver 206 (1), and enable by it and to repair the repairing of channel circuit 206b1 with the data line open defect of carrying out present embodiment, yet, the repairing channel circuit 206b1 of present embodiment also can enable by time schedule controller, with the repairing of the data line open defect of carrying out present embodiment.The repairing channel circuit 206b1 of present embodiment and 206b2 are for example between data channel circuit 206a, and when repairing channel circuit 206b1 and 206b2 and be positioned at all channel circuits of source electrode driver 206 central, the disclosed LCD 200 of present embodiment has preferable effect.
Though only export afterwards in output frame data FS (1)-FS (10) in the present embodiment and repair data RP to source electrode driver 206 (1) with time schedule controller 202a, situation with the operation that data line 208 ' is repaired of carrying out present embodiment is that example explains, yet, the time schedule controller 202a of present embodiment is not limited to export repairing data RP afterwards at output frame data FS (1)-FS (10), repairs data RP and also can export before at output frame data FS (1)-FS (10).
386 channel circuits that comprise in the source electrode driver 206 (1) of present embodiment for example have identical structure.For example it has the circuit structure close with the conventional channels circuit, comprising latch (Latch), a digital to analog converter (Digital To Analog Converter) and output buffer (OutputBuffer).
Though be that example explains only in the present embodiment with the situation that comprises data channel circuit 206a and repairing channel circuit 206b1 and 206b2 in the source electrode driver 206 (1), yet, the source electrode driver 206 (1) of present embodiment is not limited to only comprise the aforementioned channels circuit, and also can comprise other hardware.For example also comprise channel selection circuit 206d in the source electrode driver 206 ' (1), in order to be connected to the data channel circuit 206a ' in the source electrode driver 206 ' (1) and to repair channel circuit 206b1 ' and 206b2 ', and in response to selecting the signal (not shown) to provide the data of data channel circuit 206a ' and repairing channel circuit 206b1 ' and 206b2 ' output to the middle corresponding data line 208 of display panels 204a ' " and data transfer path, as shown in Figure 5.
Please refer to Fig. 6, another circuit diagram of the LCD of its expression present embodiment.Data channel circuit 206a1 for example " and 206a2 " one group with the opposite sub-pixel data of output polarity in twos, and repair channel circuit 206b1 " and 206b2 " also in twos one group with the opposite repairing data of output polarity.The polarity of aforementioned sub-pixel data with it with respect to display panels 204a " in the data polarity of common voltage (Common Voltage).Source electrode driver 206 (1) " in also comprise a plurality of channel selection circuit 206e and 206f.Channel selection circuit 206f receives two corresponding data channel circuit 206a1 " and 206a2 " sub-pixel data, select one of them to export corresponding article one data line to and select wherein another to export corresponding second data line to.Channel selection circuit 206e is in order to receive to repair channel circuit 206b1 " and 206b2 " the repairing data, and select one of them to export corresponding data transfer path to.Wherein, when the sub-pixel data of channel selection circuit 206f output was imported the data line 208 ' that open defect takes place accordingly, the repairing data of channel selection circuit 206e output had identical polarity with the sub-pixel data that channel selection circuit 206f exports data line 208 ' to.For example when the sub-pixel data on the data line 208 ' is positive polarity, channel selection circuit 206e selects the repairing data of positive polarity, for example is to repair channel circuit 206b1 " in the repairing data, and export to via data transfer path and to treat patch end 208 ' b.
The LCD of present embodiment can provide via the data transfer path that comprises patch cord and repairing operational amplifier by the repairing channel circuit the treat patch end of repairing data to the data line that open defect takes place is provided.So, LCD of the present invention has can be effectively fetch by a patch cord and Laser Welding (LBW) compared to conventional liquid crystal and reaches effect, the number that reduces patch cord of repairing data line, reduces the laser bonding number of times and shorten the advantage of the length of patch cord cabling.
In addition, the LCD of present embodiment respectively the data line of the generation open defect that drives of the data channel circuit by correspondence normal end and drive and treat patch end via repairing channel circuit and data transfer path.So, with respect to conventional liquid crystal, the LCD of present embodiment also can reduce the advantage of the driving load of corresponding data channel circuit effectively.
Second embodiment
Please refer to Fig. 7, its expression is according to the circuit diagram of the LCD of second embodiment of the invention.Wherein, the repairing operational amplifier 406d that is in LCD 400 that Fig. 7 is different with Fig. 2 designs in source electrode driver 406 (1).
Please refer to Fig. 8, the circuit arrangement map of source electrode driver 406 (1) in its presentation graphs 7.Wherein source electrode driver 406 (1) comprises 386 channel circuits, comprising 384 data channel circuits 502 and 2 repairing channel circuits 504, repairs the middle that channel circuit 504 for example is positioned at 384 data channel circuits 502.And source electrode driver 406 (1) comprises that 2 are repaired operational amplifier 506 and 508.Though present embodiment is only represented the circuit arrangement map of source electrode driver 406 (1), yet the structure of source electrode driver 406 (2)-406 (10) can be according to the structure of this source electrode driver 406 (1) and the rest may be inferred.
Please refer to Fig. 9, another circuit arrangement map of source electrode driver 406 (1) in its presentation graphs 7.And source electrode driver 406 (1) comprises 390 channel circuits, comprising 384 data channel circuits 602 and 6 repairing channel circuits 604.For example comprise 128 red 602r, 128 green 602g and 128 blue data channel circuit 602b in 384 data channel circuits.And 6 repairing channel circuits 604 comprise that 2 redness are repaired channel circuit 604r, 2 greens are repaired channel circuit 60g and 2 blueness repairing channel circuit 604b.These 2 redness, 2 greens and 2 blue money are repaired the middle that channel circuit 604r, 064g and 604b for example lay respectively at 128 redness, 128 greens and 128 blue data channel circuit 602r, 602g and 602b.Red, green and blue repairing channel circuit 604r, 604g and 604b are for example respectively in order to repair it with redness, green and blue data channel circuit 602r, 602g and 602b corresponding data line generation open defect the time.
And source electrode driver 406 (1) also comprises that two are repaired operational amplifier 606 and 608.Though present embodiment is only represented the circuit arrangement map of source electrode driver 406 (1), the structure of right source electrode driver 406 (2)-406 (10) can be according to the structure of this source electrode driver 406 (1) and the rest may be inferred.
By present embodiment as can be known, the also optional usefulness of LCD of the present invention has the source electrode driver of built-in repairing operational amplifier design, and obtains the repair efficiency of identical data line.
LCD of the present invention is selected the higher source electrode driver of channel circuit number for use, repairs channel circuit with two of designs in each source electrode driver.When in the LCD during arbitrary data line generation open defect, LCD of the present invention is repaired data to repairing channel circuit by time schedule controller output, and repair channel circuit by comprising that repairing operational amplifier provides the repairing data to the corresponding patch end for the treatment of with the data transmission channel of patch cord, to finish repairing.Therefore, LCD of the present invention can solve effectively that the patch cord number is many in traditional LCD, the patch cord wiring path is long, and required laser bonding shortcoming often, it is long because of the patch cord wiring path to improve traditional LCD simultaneously, and the problem that causes the patch cord load to increase.
Though the present invention with two embodiment openly as above, so it is not in order to limit the present invention.Those of ordinary skill under any in the technical field under the situation that does not break away from the spirit and scope of the present invention, can carry out various changes and modification.Therefore, protection scope of the present invention is as the criterion with the scope of the claim that proposed.
Claims (36)
1. LCD comprises:
One controller is in order to export at least one first and second frame data;
The one source pole driving circuit, in order to receive these first and second frame data and corresponding first and second sub-pixel data of output, this source electrode drive circuit comprises:
One first data channel circuit is in order to export this first sub-pixel data;
One second data channel circuit is in order to export this second sub-pixel data; And
One first repairs channel circuit, is connected to this controller, repairs data in order to receive one first;
One first and second data line is connected to this first and second data channel circuit respectively, in order to receive this first and second sub-pixel data; And
One data transfer path comprises a patch cord, and in order to this first repairing channel circuit selectivity is connected to one of this first and second data line, this patch cord and this first and second data line are staggered,
Wherein, this source electrode drive circuit comprises that also one second repairs a channel circuit and a channel selection circuit, this first and second repair channel circuit and export one first and one second respectively and repair sub-pixel data, and by this channel selection circuit selectivity export this first and this second repairing sub-pixel data one of them to this patch cord.
2. LCD as claimed in claim 1, wherein, this first data line comprises first and second lead that electricity is isolated, and this first lead is connected to this first data channel circuit, and this second lead is connected to this first repairing channel circuit via this data transfer path.
3. LCD as claimed in claim 1, wherein, these first repairing data are identical with these first frame data.
4. LCD as claimed in claim 1, wherein, this first repairing channel circuit is exported one first and is repaired sub-pixel data to this data transfer path, and this first repairing sub-pixel data is identical with this first sub-pixel data.
5. LCD as claimed in claim 1, wherein, this controller is controlled this first repairing channel circuit output one first repairing sub-pixel data identical with this first sub-pixel data.
6. LCD as claimed in claim 1, wherein, this patch cord is positioned at this first and second data line top.
7. LCD as claimed in claim 5, wherein, the mode selectivity that this patch cord can laser bonding be connected to this first and this second data line.
8. LCD as claimed in claim 1, wherein, when this first data line generation open defect, this first data line comprises a normal part and a part to be repaired, should normal part be connected to this first data channel circuit, this is waited to repair part and is connected to this data transfer path.
9. LCD as claimed in claim 1, wherein, this data transfer path comprises an output buffer.
10. LCD as claimed in claim 9, wherein, this output buffer comprises an operational amplifier.
11. LCD as claimed in claim 9 also comprises a printed circuit board (PCB), this output buffer is arranged on this printed circuit board (PCB).
12. LCD as claimed in claim 9, wherein, this output buffer and this source electrode drive circuit are integrated in the chip.
13. LCD as claimed in claim 1, wherein, this controller can be controlled its operation via edit routine.
14. LCD as claimed in claim 13, wherein, this controller is the controller of a single programmable.
15. LCD as claimed in claim 1, wherein, this first repairing channel circuit is enabled by this controller.
16. LCD as claimed in claim 1,
Wherein, this controller also selectivity inserted these first repairing data before or after these at least one first and second frame data, and this controller sequence is exported this first repairing data and these at least one first and second frame data, wherein, these first repairing data are identical with one of these at least one first and second frame data.
17. LCD as claimed in claim 16, wherein, this controller also inserted these first repairing data before these at least one first and second frame data.
18. LCD as claimed in claim 16, wherein, this controller inserts these first repairing data after these at least one first and second frame data.
19. the troubleshooting methodology of a LCD, this LCD comprises the one source pole driver, a data line that is connected with this source electrode driver with first direction and with second direction and the staggered patch cord of this data line, wherein this source electrode driver comprises a data channel circuit and one first repairing channel circuit, repair sub-pixel data in order to export a sub-pixel data and one first respectively, this source electrode driver comprises that also one second repairs a channel circuit and a channel selection circuit, this second repairing channel circuit is exported one second and is repaired sub-pixel data, and by this channel selection circuit selectivity export this first and this second repair sub-pixel data one of them to this patch cord, wherein this patch cord is electrically connected to this first repairing channel circuit, wherein this data line comprises the normal part and a part to be repaired that electricity is isolated, should normal part be connected to this data channel circuit, this troubleshooting methodology comprises:
Be electrically connected this patch cord and this part to be repaired;
Export this first and this second repair sub-pixel data one of them to this part to be repaired, wherein this first or this second to repair sub-pixel data identical with this sub-pixel data.
20. troubleshooting methodology as claimed in claim 19, wherein, this Connection Step is connected to this part to be repaired in the mode of laser bonding with this patch cord.
21. troubleshooting methodology as claimed in claim 19, wherein, this output step also comprises first repairs this sub-pixel data and exports this patch cord to via an output buffer.
22. troubleshooting methodology as claimed in claim 19 also comprises:
Enable this first repairing channel circuit.
23. source electrode driver, be applicable to a LCD, this LCD comprises first and second data line, a controller and a data transfer path, this controller is in order to export one first frame data, one second frame data and one first repairing data, this data transfer path comprises and the staggered patch cord of this first and second data line, and this source electrode driver comprises:
One first data channel circuit in order to receiving this first frame data, and is exported one first sub-pixel data to this first data line;
One second data channel circuit in order to receiving this second frame data, and is exported one second sub-pixel data to this second data line; And
One first repairs channel circuit, first repairs data in order to receive this, and exports one first and repair sub-pixel data to this data transfer path;
Wherein this source electrode driver comprises that also one second repairs a channel circuit and a channel selection circuit, this second repairing channel circuit is repaired data in order to receive one second, and export one second and repair sub-pixel data, this channel selection circuit be coupled to this first and second repair channel circuit, in order to receive this first and second repair sub-pixel data, and selectivity export this first and this second repair sub-pixel data one of them to this patch cord.
24. source electrode driver as claimed in claim 23, wherein, this data transfer path selectivity is connected to the data line of a generation open defect.
25. source electrode driver as claimed in claim 23, wherein, this data transfer path also comprises an output buffer.
26. source electrode driver as claimed in claim 25, wherein, this output buffer comprises an operational amplifier.
27. source electrode driver as claimed in claim 23, wherein, these a plurality of channel circuits also comprise a latch, a digital to analog converter and an output buffer.
28. a LCD comprises:
The one source pole driving circuit, in order to receive first and second frame data and corresponding first and second sub-pixel data of output, this source electrode drive circuit comprises:
One first data channel circuit is in order to export this first sub-pixel data;
One second data channel circuit is in order to export this second sub-pixel data; And
One first repairs channel circuit, repairs data in order to receive one first; This repairing channel circuit comprises a latch, a digital to analog converter and an output buffer;
One first and second data line is connected to this first and second data channel circuit respectively, in order to receive this first and second sub-pixel data; And
One data transfer path comprises a patch cord, in order to this first repair channel circuit selectivity be connected to this first and second data line one of them, this patch cord and this first and second data line interlock;
Wherein this source electrode drive circuit comprises that also one second repairs a channel circuit and a channel selection circuit, this first and second repairing channel circuit is exported one first respectively and is repaired sub-pixel data and one second repairing sub-pixel data, and by this channel selection circuit receive this first and this second repair sub-pixel data, and optionally export this first and this second repair sub-pixel data one of them to this data transfer path.
29. LCD as claimed in claim 28, wherein, this first data line comprises first and second lead that electricity is isolated, and this first lead is connected to this first data channel circuit, and this second lead is connected to this first repairing channel circuit via this data transfer path.
30. LCD as claimed in claim 28, wherein, these first repairing data are identical with these first frame data.
31. LCD as claimed in claim 28, wherein, this first repairing channel circuit is exported one first and is repaired sub-pixel data to this data transfer path, and this first repairing sub-pixel data is identical with this first sub-pixel data.
32. LCD as claimed in claim 28, wherein, this patch cord is connected to this first and second data line with the mode selectivity of laser bonding.
33. LCD as claimed in claim 28, wherein, during as if this first data line generation open defect, this first data line comprises a normal part and a part to be repaired, should normal part be connected to this first data channel circuit, this is waited to repair part and is connected to this data transfer path.
34. LCD as claimed in claim 28, wherein, this data transfer path comprises an output buffer.
35. LCD as claimed in claim 34, wherein, this output buffer comprises an operational amplifier.
36. LCD as claimed in claim 34, wherein, this output buffer and this source electrode drive circuit are integrated in the chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101496837A CN101387774B (en) | 2007-09-13 | 2007-09-13 | LCD, failure recovery method thereof and signal transmission method of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101496837A CN101387774B (en) | 2007-09-13 | 2007-09-13 | LCD, failure recovery method thereof and signal transmission method of display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101387774A CN101387774A (en) | 2009-03-18 |
| CN101387774B true CN101387774B (en) | 2011-06-29 |
Family
ID=40477276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101496837A Expired - Fee Related CN101387774B (en) | 2007-09-13 | 2007-09-13 | LCD, failure recovery method thereof and signal transmission method of display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101387774B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151016B (en) * | 2013-03-14 | 2015-07-15 | 京东方科技集团股份有限公司 | Maintenance circuit of display panel |
| TWI556202B (en) * | 2014-10-24 | 2016-11-01 | 友達光電股份有限公司 | Display driving apparatus and method for driving display apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404528B1 (en) * | 1989-06-20 | 1994-10-12 | Sharp Kabushiki Kaisha | Matrix-type display device |
| CN1188299A (en) * | 1996-04-29 | 1998-07-22 | 国际商业机器公司 | TFT/LCD active data line repair |
| US6380992B1 (en) * | 1998-04-28 | 2002-04-30 | Lg. Philips Lcd Co., Ltd | Liquid crystal display device having a defective pad repair structure and method for making the same |
| US6525705B1 (en) * | 1999-05-10 | 2003-02-25 | Hitachi, Ltd. | Liquid crystal display device having a redundant circuit |
| CN1648728A (en) * | 2005-03-11 | 2005-08-03 | 友达光电股份有限公司 | Liquid crystal display device with reduced parasitic capacitance of repairing line and its producing method |
| CN1776512A (en) * | 2005-12-02 | 2006-05-24 | 友达光电股份有限公司 | Repair line structure for liquid crystal display device |
-
2007
- 2007-09-13 CN CN2007101496837A patent/CN101387774B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404528B1 (en) * | 1989-06-20 | 1994-10-12 | Sharp Kabushiki Kaisha | Matrix-type display device |
| CN1188299A (en) * | 1996-04-29 | 1998-07-22 | 国际商业机器公司 | TFT/LCD active data line repair |
| US6380992B1 (en) * | 1998-04-28 | 2002-04-30 | Lg. Philips Lcd Co., Ltd | Liquid crystal display device having a defective pad repair structure and method for making the same |
| US6525705B1 (en) * | 1999-05-10 | 2003-02-25 | Hitachi, Ltd. | Liquid crystal display device having a redundant circuit |
| CN1648728A (en) * | 2005-03-11 | 2005-08-03 | 友达光电股份有限公司 | Liquid crystal display device with reduced parasitic capacitance of repairing line and its producing method |
| CN1776512A (en) * | 2005-12-02 | 2006-05-24 | 友达光电股份有限公司 | Repair line structure for liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101387774A (en) | 2009-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2851893B1 (en) | Display panel and display apparatus having the same | |
| CN101276109B (en) | Display device | |
| CN101561597B (en) | Liquid crystal panel and driving method thereof | |
| US8174477B2 (en) | Gate driver and repairing method thereof | |
| US20090051844A1 (en) | Defect repairing method of liquid crystal display and signal transmission method of source driver and timing controller thereof | |
| CN105448265B (en) | One kind repairs unit and its restorative procedure, gate driving circuit, display device | |
| CN102165511A (en) | Method and system for driving light emitting display | |
| CN101149895A (en) | Display panel drive technique for reducing power consumption | |
| CN101446725B (en) | Liquid crystal display device | |
| CN106875896A (en) | A kind of source drive IC, display device and its driving method | |
| KR20160102518A (en) | Wiring structure of array substrate | |
| CN105788549A (en) | Pixel driving structure, driving method and display device | |
| CN104122685A (en) | Repairing structure of liquid crystal display panel | |
| CN107564453A (en) | Displaying panel driving method | |
| US6894667B1 (en) | Liquid crystal display module and the scanning circuit board | |
| US6943781B1 (en) | Liquid crystal display module and its scanning circuit board | |
| CN101976550A (en) | Liquid crystal panel and driving method thereof | |
| CN111785196A (en) | Display panel, test method thereof and display device | |
| CN101387774B (en) | LCD, failure recovery method thereof and signal transmission method of display | |
| CN104157258B (en) | Source driver and display | |
| CN111429831B (en) | Tiled display device | |
| CN105374332B (en) | liquid crystal display and its source side fan-out area circuit | |
| CN113380191B (en) | Display panel driving device and display device | |
| CN104951142A (en) | Touch display panel and display device | |
| CN101995718B (en) | Display panel and method for reducing data lines used by same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20120913 |