CN112242124A - Active matrix organic light emitting display panel for repairing broken line and broken line repairing method - Google Patents
Active matrix organic light emitting display panel for repairing broken line and broken line repairing method Download PDFInfo
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- CN112242124A CN112242124A CN201910642440.XA CN201910642440A CN112242124A CN 112242124 A CN112242124 A CN 112242124A CN 201910642440 A CN201910642440 A CN 201910642440A CN 112242124 A CN112242124 A CN 112242124A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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Abstract
The invention provides an active matrix organic light-emitting display panel for repairing broken lines, which comprises a display area, a non-display area, a plurality of adjacent driving chips and at least one abnormal data line, wherein the abnormal repairing line is arranged in the non-display area and used for transmitting repairing signals to the broken points of the abnormal data line, and the abnormal repairing line is provided with a first section, a second section and a third section which are connected; the first section is used for connecting a first end of an abnormal data line and an input end of a driving chip correspondingly connected with the abnormal data line; the first line segment of the second segment is used for connecting the output end of the driving chip and the input end of another adjacent driving chip, and the second line segment is used for connecting the input end and the output end of the driving chip and the input end and the output end of the operational amplifier so as to amplify the repair signal; the third segment is used for connecting the output end of the last driving chip connected with the second segment and the second end of the abnormal data line. Therefore, the repairing process is effectively reduced, and the time cost is saved.
Description
Technical Field
The present invention relates to the field of display panel technologies, and in particular, to a method for repairing an active matrix organic light emitting display panel and a display panel.
Background
Organic light emitting display devices (OLEDs) are active light emitting devices. Compared with the current mainstream flat panel display technology, the thin film transistor liquid crystal display (TFT-LCD) has the advantages of high contrast, wide viewing angle, low power consumption, thinner volume and the like, is expected to become the next generation of flat panel display technology after the LCD, and is one of the most concerned technologies in the current flat panel display technology. In current process fabrication, both LTPS and Oxide have uniformity or stability problems, and the OLED itself gradually degrades in brightness with increasing turn-on time. In the AMOLED preparation process, pixel point defects and signal line disconnection defects of an AMOLED display are two main defects which are inevitable in the preparation process, most of the two defects are concentrated at the tail end of the array process, and when the defects are detected, corresponding repair is needed. The prior art does not give a feasible solution to the data line disconnection failure that occurs after packaging. Moreover, the larger the panel size, the larger the probability of point or line defects, which affects the yield of mass production and increases the production cost, if the products with the defects of the point and line can be repaired by an effective means, the loss can be saved, and huge economic benefits can be generated in the long run.
At present, as shown in fig. 1, a main broken line repairing frame on a large-sized panel is that a broken line signal is led out from an output end of a Driver IC (11) through a routing (dotted arrow), passes through an FPC (12) and a TCON Board (13), and enters the broken line to be repaired from the other end of the panel. Repair of a broken wire requires four passes through cut/contact/cut/contact operations. In the whole repair structure and the repair process, the Driver IC does not need to do anything, the repair effect is completely determined according to the condition of each chip, and no space is improved. Therefore, it is necessary to provide a method for repairing a signal disconnection of an array substrate of an active matrix organic light emitting display.
In view of the above, the present inventors have made diligent experiments and studies to overcome the above-mentioned shortcomings in the prior art, and finally have devised the present invention to drive the wire break repair by the matching of TCON and Driver IC to achieve the purposes of reducing the repair process and saving time and cost.
Disclosure of Invention
The invention aims to: an active matrix organic light emitting display panel for repairing a broken line is provided to solve the above technical problems in the prior art.
To achieve the purpose of the present invention, a technical solution provided by the present invention is as follows:
an active matrix organic light emitting display panel for repairing a broken line, the active matrix organic light emitting display panel including a display area, a non-display area, a plurality of driving chips and at least one abnormal data line, the active matrix organic light emitting display panel comprising:
the abnormal data line is provided with a first end and a second end which are positioned at two sides of the display area and a breakpoint positioned in the display area; the abnormal repairing line is arranged in the non-display area and used for transmitting a repairing signal to a breakpoint of the abnormal data line, and the abnormal repairing line is provided with a first section, a second section and a third section which are connected; the first section is used for connecting a first end of an abnormal data line and an input end of a driving chip correspondingly connected with the abnormal data line; (ii) a The second segment is used for distinguishing a first segment and a second segment, the second segment is arranged in the driving chip, an operational amplifier is arranged in the driving chip, the second segment is used for connecting the input end of the driving chip with the input end of the operational amplifier and connecting the output end of the operational amplifier with the output end of the driving chip, and the second segment of the second segment is connected with the operational amplifiers in the driving chips in series so as to amplify the repairing signal transmitted by the abnormal repairing wire; the first line segment is used for connecting the output end of the driving chip correspondingly connected with the abnormal data line and the input end of the adjacent driving chip; the third segment is used for connecting the output end of the last driving chip connected with the second segment and the second end of the abnormal data line.
To achieve another objective of the present invention, the present invention provides a technical solution as follows:
a broken line repairing method of an active matrix organic light emitting display panel comprises a display area, a non-display area, a plurality of driving chips and at least one abnormal data line, and comprises the following steps:
setting an abnormal repairing line in the non-display area, and transmitting a repairing signal to a breakpoint of the abnormal data line through the abnormal repairing line;
dividing the abnormal repairing line into a first section, a second section and a third section which are connected;
connecting a first end of the abnormal data line with an input end of a driving chip correspondingly connected with the abnormal data line through a first section;
dividing the second segment into a first segment and a second segment and disposing the second segment within the driving chip;
connecting the input end of the driving chip and the input end of the operational amplifier by using a second line segment, and connecting the output end of the operational amplifier and the output end of the driving chip by using the second line segment;
connecting a second line segment of a second segment of the abnormal data line in series with operational amplifiers in the plurality of driving chips so as to amplify the repair signal transmitted by the abnormal repair line;
connecting the output end of the driving chip correspondingly connected with the abnormal data line with the input end of another adjacent driving chip by using the first line segment; and
and the output end of the last driving chip connected with the second section is connected with the second end of the abnormal data line by using the third section, and the third section is used for transmitting the repair signal amplified by the operational amplifier to the breakpoint through the second end of the abnormal data line.
In one possible design, the plurality of driver chips are connected in sequence using a first segment of the abnormal data line.
In one possible design, the abnormal data line comprises a plurality of abnormal sub data lines, a plurality of sub abnormal repairing lines are arranged corresponding to the plurality of abnormal sub data lines, and first line segments of the plurality of sub abnormal repairing lines are respectively connected with the driving chip correspondingly connected with each abnormal sub data line.
In one possible design, the abnormal data line includes a plurality of abnormal sub data lines, a plurality of sub abnormal repairing lines are arranged corresponding to the plurality of abnormal sub data lines, and second line segments of the plurality of sub abnormal repairing lines are respectively connected with different operational amplifiers in the driving chip of each abnormal sub data line.
In one possible design, the active matrix organic light emitting display panel is connected with a time sequence control module through a flexible circuit board, and repair data of repair signals are stored in a memory externally hung on the time sequence control module according to the position of an abnormal repair line.
According to the method for repairing the broken line of the active matrix organic light-emitting display panel, the controllability can be effectively improved by the technology of driving the broken line repairing by matching the time sequence control module (TCON Board) and the driving chip (Driver IC), the repairing of one line only needs to be carried out by cutting off/connecting points twice, half time can be saved, the repairing process can be effectively reduced, and the time cost can be saved.
Drawings
Fig. 1 is a schematic diagram of a broken line repairing structure of a display panel in the prior art.
FIG. 2 is a schematic diagram of a display panel structure for repairing broken lines according to the present invention.
FIG. 3 is a flow chart of a method for repairing broken wires according to the present invention.
Fig. 4 is a schematic diagram of internal routing of the driving chip according to the present invention.
Description of reference numerals: 11-Driver IC; 12-FPC; 13-TCON Board; 20-a display panel; 200-a driving chip; 210-an exception repair line; DA-display area; FOA-non-display area; DL-data line DL; BL-exception data line; BL1 — first terminal; BL2 — second terminal; an OP-operational amplifier; S10-S50-broken line repairing method flow.
Detailed Description
The following detailed description and technical contents of the present invention are described with reference to the drawings, which are provided for reference and illustration purposes only and are not intended to limit the present invention. Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to only these embodiments. The invention is intended to cover alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the invention. In the following description of the preferred embodiments of the present invention, specific details are set forth in order to provide a thorough understanding of the present invention, and it will be apparent to those skilled in the art that the present invention may be practiced without these specific details.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The use of "including," "comprising," "having," and the like in this disclosure is intended to mean that the component or object before the word "appears in the art" includes reference to the component or object listed after the word and its equivalents, rather than excluding other components or objects. The terms "upper", "lower", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.
Please refer to fig. 2, fig. 3 and fig. 4 are schematic diagrams of internal wiring of the driving chip, and fig. 2 is a schematic diagram of an active matrix organic light emitting display panel for repairing broken lines according to the present invention. FIG. 3 illustrates a method for repairing a broken wire according to the present invention. Fig. 4 is a schematic diagram of internal routing of the driver chip. The display panel 20 includes a display area DA, a non-display area FOA, data lines DL and abnormal data lines BL, the non-display area FOA is disposed around an edge of the display area DA, the abnormal data lines BL include a first end BL1, a second end BL2 and a break point located in the display area at both sides of the display area DA, the first end BL1 and the second end BL2 are located in the non-display area FOA, the display panel 20 further includes a plurality of adjacent driving chips 200, and an operational amplifier OP is disposed in the driving chips 200. Here, point a on one data line is a break point, and the display from point a to the ground side is not possible, and the line appears broken. To repair the broken line, firstly, an abnormal repair line 210 needs to be preset for a plurality of driver chips 200, and the output data of the abnormal repair line 210 is provided to the driver chips 200 by the timing control module 30(TCON Board) together with the picture data. To repair a line, it needs to be set in advance and written into a memory 400(flash) externally attached to a timing control module 40.
The active matrix organic light emitting display panel in this embodiment may be connected to the timing control module 40 through a flexible circuit board 30, and the memory 400 externally attached to the timing control module 40 stores the repair data of the repair signal according to the position of the abnormal repair line BL.
In the specific embodiment, the overlapped point B, C of the abnormal repairing line 210 and the data line DL is welded by laser, the data of the AB segment is transmitted through the original data line, and the data of the AC segment is transmitted through the abnormal repairing line 210, so that the line repairing is finally realized. Since the transmission path for transmitting data to the point a through the abnormal repair line 210 is longer than the normal transmission path, in order to avoid the influence of the resistance and capacitance in the routing process of the abnormal repair line 210, which causes the voltage output to the point a to be lower than the target voltage, the abnormal repair line 410 needs to be connected to a Flexible Printed Circuit (FPC), and the output thrust thereof is increased by an Operational Amplifier (OP).
FIG. 3 is a flowchart illustrating a repairing method of a display panel according to an embodiment, wherein the repairing method includes steps S10-S50.
S10: an abnormal repairing line 210 is arranged in the non-display area FOA and used for transmitting a repairing signal to a breakpoint of an abnormal data line BL, and the abnormal repairing line 210 distinguishes a first section, a second section and a third section which are connected;
s20: connecting a first end BL1 of the abnormal data line BL with an input end of a driving chip 200 correspondingly connected with the abnormal data line BL through a first section 211;
s30: distinguishing a second segment of the abnormal data line BL into a first segment and a second segment, the second segment being disposed in the driving chip 200;
s40, connecting the input end of the driving chip 200 with the input end of the operational amplifier OP by a second line segment, and connecting the output end of the operational amplifier OP with the output end of the driving chip 200 by the second line segment, for amplifying the repair signal transmitted by the abnormal repair line; connecting the output end of one driving chip 200 correspondingly connected with the abnormal data line BL with the input end of another adjacent driving chip 200 by using a first line segment;
s50: the second segment is connected to the output terminal of one driver chip 200 and the second terminal BL2 of the abnormal data line BL, through which the second segment passes, for transmitting the repair signal (not shown) amplified by the operational amplifier OP to the breakpoint via the second terminal of the abnormal data line BL.
As mentioned above, the second segment of the abnormal repairing line 210 is divided into the first segment and the second segment, the second segment is disposed in the driving chip 200, the impedance of the second segment of the abnormal repairing line 210 in the driving chip 200 is negligible, and the impedance and the uniformity of the second segment are superior to those of the wiring of the non-display area FOA.
In a specific embodiment, the connecting the input and the output of the driving chip 200 by the second line segment includes: and the operational amplifier OP in the driving chip is connected in series between the input end and the output end of the driving chip by using the second line segment and is used for amplifying the repairing signal transmitted by the abnormal repairing line. The abnormal repairing line 210 which is completely routed through the non-display area FOA in the traditional design is changed into the abnormal repairing line which is transmitted through the non-display area FOA and the driving chip 200, and the driving capability of data on the abnormal repairing line is increased by using the operational amplifier OP in the driving chip 200.
The abnormal repair line in this embodiment shortens the transmission path in the non-display area FOA, and the requirement for the output capability of the operational amplifier OP is correspondingly reduced after the impedance is reduced. Although the output capability of the operational amplifier OP inside the driving chip 200 is lower than that of the conventional external operational amplifier, the driving requirement can be satisfied after the impedance of the abnormal repair line is reduced. The operational amplifier for increasing the pushing capacity of the abnormal repairing wire is an operational amplifier of the driving chip, and the wiring is optimized. The push capacity can be increased by utilizing the original operational amplifier of the driving chip, the operational amplifier is not required to be additionally added, the circuit is optimized, the assembly and the piece-making cost of the external operational amplifier can be saved, the product cost is reduced, the power of an abnormal repair line is reduced, and the influence on peripheral assemblies is reduced.
In a specific embodiment, the plurality of driving chips are connected in sequence by the first line segment 212 a. All the driving chips are connected in sequence by the first line segment 212a of the abnormal repair line, so that the impedance can be reduced to the maximum extent.
In a specific embodiment, the broken line repairing method further includes: the second segment 212b of the second segment is used to serially connect a plurality of operational amplifiers OP in the driving chip 200 for cascade conduction amplification of the repair signal. The driving capability requirement of the operational amplifier OP on the abnormal repair line BL is reduced, and the driving capability is increased by using the operational amplifiers OP with low driving capability in the plurality of driving chips 200. The operational amplifiers OP in the single driving chip 200 can achieve the driving capability that cannot be satisfied, and the operational amplifiers OP in the plurality of driving chips 200 achieve the effect that the plurality of small-thrust operational amplifiers drive the large load in a cascade conduction manner.
As described above, one breakpoint may be driven by the operational amplifier OP in one driver chip 200, or may be driven by a combination of the internal operational amplifiers OP in a plurality of driver chips 200. That is, the output of the source driver chip is driven by the operational amplifier OP in the first driver chip 200, then input to the operational amplifier OP in the second driver chip 200, and output to the third driver chip 200 after being amplified by the thrust, and so on, so as to achieve the effect of driving a large load by a plurality of small thrust operational amplifiers in a cascade conduction manner.
In an embodiment, the abnormal data line BL includes a plurality of abnormal sub data lines (not shown); the abnormal repairing line is provided with a plurality of sub abnormal repairing lines (not shown) corresponding to the plurality of target sub data lines; the second segments of the plurality of sub-abnormal repair lines are respectively connected to different operational amplifiers within the driving chip 200. And amplifying the repair signals of the plurality of sub-abnormal repair lines by using an operational amplifier.
The scheme of the above embodiment is adopted for a plurality of abnormal repair lines which are correspondingly arranged on a plurality of data lines on the display panel 20 and have breakpoints, the plurality of abnormal repair lines pass through different operational amplifiers of the non-display area and the driving chip, and the repair signals are amplified through the operational amplifiers in the driving chip. For example, if two data lines have breakpoints, two sub-abnormal repair lines are arranged, two operational amplifiers are arranged in the driving chip, and the two sub-abnormal repair lines respectively pass through the two operational amplifiers of the driving chip, so that compared with the traditional abnormal repair line, the routing in a non-display area is reduced, the impedance is reduced, the driving capability of the operational amplifiers is also reduced, the driving is completed through the operational amplifiers in the driving chip, and if the operational amplifiers in one driving chip cannot meet the driving capability, the effect of driving a large load through a plurality of small-thrust operational amplifiers is achieved through the operational amplifiers in a cascade conduction mode.
Optionally, the exception data line comprises a plurality of target sub data lines; the abnormal repairing line is provided with a plurality of sub-abnormal repairing lines corresponding to the plurality of target sub-data lines; the first line segments of the plurality of sub-abnormal repair lines are connected with different driving chips. An operational amplifier within the chip may be driven to amplify the repair signal. The repair signal may also be amplified by an external operational amplifier.
The scheme of the embodiment is adopted for the plurality of abnormal sub-repairing lines which are correspondingly arranged corresponding to the plurality of data lines with breakpoints on the display panel, and the plurality of abnormal sub-repairing lines pass through the non-display area and different driving chips and amplify repairing signals through operational amplifiers in the driving chips. For example, if two data lines have breakpoints, two sub-abnormal repair lines are arranged and pass through half of the driving chips respectively, compared with the traditional abnormal repair lines, wiring in a non-display area is reduced, impedance is reduced, the driving capability of an operational amplifier is also reduced, driving is completed through the operational amplifier in the driving chip, and if the operational amplifier in one driving chip cannot meet the driving capability, the effect of driving a large load through a plurality of small-thrust operational amplifiers is achieved through the operational amplifiers in a plurality of driving chips in a cascading conduction mode.
Fig. 4 is a schematic diagram of internal routing of the driver chip, wherein a point P1 of the abnormal repair line 210 is connected to an input terminal of an operational amplifier OP on the driver chip 200, a point P2 of the abnormal repair line 210 is connected to an output terminal of the operational amplifier OP on the driver chip 200, a point P3 of the scan line is connected to a first output of a gate-on signal of a control transistor of the driver chip 200, and a point P4 of the scan line is connected to a last output of the gate-on signal of the control transistor of the driver chip 200. The signal required by the abnormal repair line 210 does not conflict with the column scanning signal of the scanning line itself. And the driving chip has the function of transmitting high-voltage signals, and the newly added internal wiring does not influence the existing functions.
In summary, the active matrix organic light emitting display panel and the broken line repairing method of the present invention can effectively improve controllability by a technology of driving the broken line repairing through the collocation of the timing control module (TCON Board) and the Driver IC, and the repairing of one line only needs to cut/contact twice, thereby saving half of time, effectively reducing repairing processes, and saving time cost. Moreover, each operational amplifier has the function of enhancing the driving capability, namely single-time amplification, and has the functions of enabling the output signal to be equal to the input signal, keeping the output voltage unchanged, enhancing the output current capability and reducing the waveform distortion caused by the influence of a rear-end load.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples
The foregoing description shows and describes several preferred embodiments of the invention, but as before, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An active matrix organic light emitting display panel for repairing a wire break, the active matrix organic light emitting display panel comprising a display area, a non-display area, a plurality of adjacent driving chips, and at least one abnormal data line, the active matrix organic light emitting display panel comprising:
the abnormal data line is provided with a first end and a second end which are positioned at two sides of the display area and a breakpoint positioned in the display area;
the abnormal repairing line is arranged in the non-display area and used for transmitting a repairing signal to the breakpoint of the abnormal data line, and the abnormal repairing line is provided with a first section, a second section and a third section which are connected;
the first section is used for connecting a first end of the abnormal data line and an input end of the driving chip correspondingly connected with the abnormal data line;
the second segment is used for distinguishing a first segment and a second segment, the second segment is arranged in the driving chip, an operational amplifier is arranged in the driving chip, the second segment is used for connecting the input end of the driving chip with the input end of the operational amplifier and connecting the output end of the operational amplifier with the output end of the driving chip, and the second segment of the second segment is connected with the operational amplifiers in the driving chips in series so as to amplify the repair signal transmitted by the abnormal repair line;
the first line segment is used for connecting the output end of the driving chip correspondingly connected with the abnormal data line and the input end of the adjacent driving chip; and
the third segment is used for connecting the output end of the last driving chip connected with the second segment and the second end of the abnormal data line.
2. The active matrix organic light emitting display panel for repairing a broken line according to claim 1, wherein the abnormal data line includes a plurality of abnormal sub data lines, a plurality of sub abnormal repair lines are provided corresponding to the plurality of abnormal sub data lines, and first line segments of the plurality of sub abnormal repair lines are respectively connected to the driving chip correspondingly connected to each of the abnormal sub data lines.
3. The active matrix organic light emitting display panel for repairing a broken line according to claim 1, wherein the abnormal data line includes a plurality of abnormal sub data lines, a plurality of sub abnormal repair lines are provided corresponding to the plurality of abnormal sub data lines, and second line segments of the plurality of sub abnormal repair lines are respectively connected to different ones of the operational amplifiers in the driving chip correspondingly connected to each of the abnormal sub data lines.
4. The active matrix organic light emitting display panel for repairing broken lines according to claim 1, wherein the active matrix organic light emitting display panel is connected to a timing control module through a flexible circuit board, and a memory externally attached to the timing control module stores repair data of the repair signal according to a position of the abnormal repair line.
5. The broken line repairing method of the active matrix organic light-emitting display panel is characterized by comprising the following steps of:
setting an abnormal repairing line in the non-display area, and transmitting a repairing signal to a breakpoint of the abnormal data line through the abnormal repairing line;
dividing the abnormal repairing line into a first section, a second section and a third section which are connected;
connecting a first end of the abnormal data line with an input end of the driving chip correspondingly connected with the abnormal data line through the first section;
dividing the second segment into a first segment and a second segment and disposing the second segment in the driving chip correspondingly connected with the abnormal data line;
connecting the input end of the driving chip with the input end of the operational amplifier by using the second line segment, and connecting the output end of the operational amplifier with the output end of the driving chip correspondingly connected with the abnormal data line by using the second line segment;
connecting a second line segment of a second segment of the abnormal data line in series with a plurality of operational amplifiers correspondingly connected with the driving chips of the abnormal data line so as to amplify a repairing signal transmitted by the abnormal repairing line;
connecting the output end of the driving chip correspondingly connected with the abnormal data line with the input end of another adjacent driving chip by using the first line segment; and
and connecting the output end of the last driving chip connected with the second section with the second end of the abnormal data line by using the third section, and transmitting the repair signal amplified by the operational amplifier to the breakpoint through the second end of the abnormal data line.
6. The method of repairing disconnection of an active matrix organic light emitting display panel according to claim 5, wherein the plurality of driver chips are connected in sequence by the first segment of the abnormal data line.
7. The method for repairing a broken wire of an active matrix organic light emitting display panel according to claim 5, wherein the abnormal data line includes a plurality of abnormal sub data lines, a plurality of sub abnormal repairing lines are provided corresponding to the plurality of abnormal sub data lines, and first line segments of the plurality of sub abnormal repairing lines are respectively connected to the driving chips correspondingly connected to each of the abnormal sub data lines.
8. The method of claim 5, wherein the abnormal data line includes a plurality of abnormal sub data lines, a plurality of sub abnormal repair lines are disposed corresponding to the plurality of abnormal sub data lines, and second line segments of the plurality of sub abnormal repair lines are respectively connected to different operational amplifiers in the driving chip correspondingly connected to each of the plurality of abnormal sub data lines.
9. The method according to claim 5, wherein the AMOLED panel is connected to a timing control module via a flexible printed circuit, and the memory externally attached to the timing control module stores the repair data of the repair signal according to the position of the abnormal repair line.
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Application publication date: 20210119 |