CN113745194A - Display panel, display and display panel repairing method - Google Patents
Display panel, display and display panel repairing method Download PDFInfo
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- CN113745194A CN113745194A CN202110878359.9A CN202110878359A CN113745194A CN 113745194 A CN113745194 A CN 113745194A CN 202110878359 A CN202110878359 A CN 202110878359A CN 113745194 A CN113745194 A CN 113745194A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76886—Modifying permanently or temporarily the pattern or the conductivity of conductive members, e.g. formation of alloys, reduction of contact resistances
- H01L21/76892—Modifying permanently or temporarily the pattern or the conductivity of conductive members, e.g. formation of alloys, reduction of contact resistances modifying the pattern
- H01L21/76894—Modifying permanently or temporarily the pattern or the conductivity of conductive members, e.g. formation of alloys, reduction of contact resistances modifying the pattern using a laser, e.g. laser cutting, laser direct writing, laser repair
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
- H01L23/5283—Cross-sectional geometry
Abstract
The invention relates to a panel technology and discloses a display panel, a display and a display panel repairing method, wherein the display panel comprises: the data line driver comprises at least 2 data lines, data signal driving equipment, an insulating layer covering the surfaces of the data lines and a conductive layer covering the surface of the insulating layer, wherein the data lines are mutually isolated; the display adopts the display panel; the display panel repairing method adopts the display panel, the broken part of the broken data line is communicated with the other data line through the repairing line, and the data signal is input into the broken part from the other data line. The display panel, the display and the display panel repairing method can repair the data line with the open circuit and improve the process yield.
Description
Technical Field
The invention relates to the technical field of panels, in particular to a display panel, a display and a display panel repairing method.
Background
The existing display panel is provided with a plurality of parallel data lines, all the data lines are connected with a data signal input device, wherein the end part of the data line connected with the data signal input device is the starting end of the data line, the end part far away from the data signal input device is the tail end of the data line, and the data signal is input from the starting end of each data line to the tail end of each data line through the data signal input device on each data line.
Data line disconnection is one of the main defects affecting the display panel. The data line disconnection refers to a situation that one or more data lines are disconnected somewhere between the beginning and the end of the data line due to some reasons, and at this time, no data signal is input from the disconnected position to the end of the disconnected data line, thereby affecting the display of the area of the display panel.
The existing display panel has poor bright and dark lines caused by the open circuit of the data lines, and has no effective method for repairing the poor bright and dark lines temporarily.
Disclosure of Invention
The invention mainly aims to provide a display panel, a display and a display panel repairing method, and aims to solve the technical problems of poor bright and dark lines and difficulty in repairing caused by open circuit of a data line in the prior art.
To achieve the above object, the present invention provides a display panel, including: the data line driver comprises at least 2 data lines, data signal driving equipment, an insulating layer and a conductive layer, wherein the insulating layer covers the surface of each data line, the conductive layer covers the surface of the insulating layer, all the data lines are electrically connected with the data signal driving equipment, a repairing line is arranged on the conductive layer, the projection of the repairing line on the plane where the data lines are located is intersected with all the data lines, the data lines are used for transmitting data signals, and the data signal driving equipment is used for inputting data signals to the initial ends of the data lines connected with the data lines.
Optionally, a projection of the repair line on a plane where the data line is located intersects with the ends of all the data lines.
Optionally, all the data lines are parallel to each other, the ends of all the data lines are flush, and the projection of the repair line on the plane of the data lines is orthogonal to all the data lines.
Optionally, the data line further includes an interlayer dielectric layer, all the data lines are disposed on the surface of the interlayer dielectric layer, and the data lines are between the interlayer dielectric layer and the insulating layer.
Optionally, the conductive layer is an ito layer, a light shielding layer, or a scan line layer.
Optionally, the insulating layer surface comprises:
the conductive layer covers part of the repair area and is in contact with the surface of the insulating layer;
and a planarization region, wherein a planarization layer is formed on the surface of the planarization region, and the conductive layer covers part of the planarization region and is in contact with the surface of the planarization layer.
The display provided by the invention comprises the display panel.
According to the display panel repairing method, the display panel is adopted, the data lines comprise the first data lines and the second data lines, and the first data lines are disconnected;
the display panel repairing method comprises the following steps:
communicating a disconnected portion of the first data line with the repair line;
communicating the second data line with the repairing line, wherein a data signal input is arranged at the communication position of the repairing line and the second data line;
and inputting a data signal to the disconnected portion of the first data line through the second data line after the disconnected portion of the first data line is connected to the second data line through the repair line.
Optionally, the repair line is communicated with the first data line and the second data line through the laser repair line;
and the laser position is a position where the projection of the first data line and the second data line on the conductive layer is intersected with the repair line.
Optionally, the driving voltages of the data signals input from the beginning of the first data line and the beginning of the second data line are the same.
Optionally, the repair line connects an end of the first data line and an end of the second data line.
Optionally, the first data line has a plurality of lines;
connecting the disconnected part of each first data line with the corresponding second data line through the corresponding section on the repair line;
inputting a data signal through the second data line to a disconnected portion of the first data line connected thereto by the repair line.
In the technical scheme of the invention, when a certain data line is broken, the broken part of the broken data line can be communicated with another data line through the repairing line, a data signal is input into the broken part of the broken data line through the other data line, the broken data line is repaired, the panel display is normal, the projection of the repairing line on the plane where the data line is located is intersected with all the data lines, only one repairing line needs to be arranged, the structure is simple, any broken data line can be repaired, and when a plurality of data lines are simultaneously broken, the repairing line can be cut into a plurality of sections, and the plurality of broken data lines can be repaired.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a cross-sectional view of an embodiment of a display panel according to the present invention;
fig. 2 is a cross-sectional view illustrating repair of a broken data line according to an embodiment of the display panel of the present invention;
fig. 3 is a schematic distribution diagram of data lines and repair lines of an embodiment of a display panel according to the invention;
fig. 4 is a schematic diagram illustrating a display panel according to an embodiment of the present invention repairing a broken data line;
fig. 5 is a schematic diagram of a display panel with an RGBW pixel structure according to an embodiment of the present invention when repairing a disconnected data line;
FIG. 6 is a schematic diagram of a display panel with another pixel structure according to another embodiment of the present invention, wherein the broken data line is repaired;
FIG. 7 is a flowchart illustrating steps of a method for repairing a display panel according to an embodiment of the present invention;
the reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | |
| 120 | |
200 | |
| 300 | |
400 | Interlayer |
| 500 | |
610 | |
| 620 | |
700 | Data |
| 800 | Pixel |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a display panel, a display and a display panel repairing method, which can repair a data line 100 with an open circuit and improve the process yield.
As shown in fig. 1 to 4, in an embodiment of the display panel proposed by the present invention, the display panel includes: the data line driving device comprises at least 2 data lines 100, a data signal driving device 700, an insulating layer 300 covering the surface of the data lines 100 and a conductive layer covering the surface of the insulating layer 300, wherein the insulating layer 300 is arranged between the conductive layer and the data lines 100, all the data lines 100 are electrically connected with the data signal driving device 700, a repair line 200 is arranged on the conductive layer, the projection of the repair line 200 on the plane where the data lines 100 are located intersects with all the data lines 100, the data lines 100 are used for transmitting data signals, the data signal driving device 700 is used for inputting data signals to the initial ends of the data lines 100 connected with the data signal driving device 700, the end of the data lines 100 connected with the data signal driving device 700 is the initial end, and the end of the data lines 100 far away from the data signal driving device 700 is the tail end.
In the above embodiment, when a certain data line 100 is broken, the insulating layer 300 at the corresponding position may be broken by using a laser or other means, the broken portion of the broken data line 100 is communicated with another data line 100 through the repair line 200, and a data signal is input to the broken portion of the broken data line 100 through another data line 100, so as to repair the broken data line 100, so that the panel displays normal, the projection of the repair line 200 on the plane where the data line 100 is located intersects with all the data lines 100, only one repair line 200 needs to be provided, so that any broken data line 100 can be repaired, the wiring is simple, and when a plurality of data lines 100 are simultaneously broken, the repair line 200 may be cut into a plurality of segments, so as to repair the plurality of broken data lines 100.
As a further solution to the above embodiment, a projection of the repair line 200 on the plane of the data line 100 (a projection of the repair line 200 in a direction perpendicular to the plane of the data line 100) intersects with the ends of all the data lines 100.
In a further scheme of the above embodiment, the projection of the repair line 200 on the plane of the data line 100 intersects with the ends of all the data lines 100, so that when the repair line 200 is located in the middle of the data line 100, and when an open circuit occurs between the projection position of the repair line 200 on the plane of the data line 100 and the ends of the data line 100, the problem that the repair line cannot be repaired is solved, and it is ensured that the open circuit at each position on the data line 100 can be repaired by the repair line 200, and then the disconnected part is input by a data signal.
As a further solution to the above embodiment, all the data lines 100 are parallel to each other, the ends of all the data lines 100 are flush, and the projection of the repair line 200 on the plane of the data lines 100 is orthogonal to all the data lines 100.
In a further aspect of the above embodiment, the repair line 200 is convenient to wire and simple in design.
As a further scheme of the above embodiment, the data line structure further includes an interlayer dielectric layer 400, all the data lines 100 are disposed on the surface of the interlayer dielectric layer 400, and the data lines 100 are between the interlayer dielectric layer 400 and the insulating layer 300. The interlayer dielectric layer 400 may be an insulating and buffering material.
In a further scheme of the above embodiment, the interlayer dielectric layer 400 is provided, so that the data line 100 is convenient to mount, the data line 100 can be protected, the data line 100 can be isolated from other layers, and the data line 100 and other layers are prevented from being influenced by each other.
As a further aspect of the above embodiment, the conductive layer is an ITO layer (ITO layer), a light-shielding layer (LS layer), or a scan line layer (M1 layer), and the conductive layer may be another metal layer in the display panel.
In a further aspect of the above embodiment, the metal layers in the display panel are utilized without adding new processes.
As a further aspect of the above embodiment, the surface of the insulating layer 300 includes: a repair region and a planarization region. The repair area corresponds to the area where the projection of the repair line 200 on the plane of the data line 100 intersects with the data line 100, and the conductive layer covers the repair area and is in direct contact with the surface of the insulating layer 300; the planarization layer 500(PLN layer) is formed on the surface of the planarization region, and the conductive layer covers the portion of the planarization region in contact with the surface of the planarization layer 500.
The insulating layer 300 can be a PV inorganic layer, the repair area is used for laser to enable the repair line 200 to be communicated with the data line 100, the surface of the insulating layer 300 can be added with a planarization layer 500, and the planarization layer is beneficial to planarization of the surface of the display panel; the repair area (i.e. the area where the projection of the repair line 200 on the plane of the data line 100 intersects with the data line 100 corresponds to the surface of the insulating layer 300) does not have the planarization layer 500, the surface of the insulating layer 300 corresponding to the data line 100 including the repair area is not provided with the planarization layer 500, and the surface of the insulating layer such as the repair area not provided with the planarization layer 500 directly contacts with the repair line 200 on the conductive layer, so that the repair line 200 is communicated with the data line 100 during laser.
In an embodiment of the display panel according to the present invention, the interlayer dielectric layer 400, the data lines 100, the insulating layer 300, and the conductive layer are sequentially disposed, the data signal driving device 700 is disposed at a lower edge of the display area 610, all the data lines 100 vertically extend from bottom to top, a lower end of the data line 100 is a start end thereof and is connected to the data signal driving device 700, an upper end of the data line 100 is a tail end thereof and extends to a position of the frame 620 above the periphery of the display area 610, and the tail ends of all the data lines 100 are flush with each other. The repair line 200 is a straight line extending from left to right at the position of the upper frame 620 at the periphery of the display region 610, and is orthogonal to the ends of all the data lines 100, the width of the repair line 200 is determined according to the process capability and the design space, and may be several micrometers to several tens of micrometers, the ito layer is used as the conductive layer, and the repair line 200 is disposed on the ito layer facing the insulating layer 300 side.
When a certain data line 100 is broken, the overlapping position of the data line 100 which is broken by laser and the repairing line 200 breaks through the insulating layer 300 at the overlapping position, so that the tail end of the data line 100 which is broken is communicated with the repairing line 200; and another intact data line 100 corresponding to the data line 100 with the broken circuit is radiussed, so that the intact data line 100 is communicated with the repairing line 200, and a data signal is input to the broken part of the data line 100 with the broken circuit through the intact data line 100 through the repairing line 200 to realize repairing. When selecting another data line 100 to which a data signal is input to the data line 100 in which a disconnection has occurred, the data line 100 is selected to have the same or a small difference from the driving voltage at the start of the data line 100 in which the disconnection has occurred.
When the plurality of data lines 100 are all broken, the broken portion of each broken data line 100 can be communicated with the corresponding data line 100 to which the data signal can be input through each segment of the repair line 200.
In an embodiment of the display provided by the present invention, the display panel is included.
Since the display proposed by the present invention adopts all the technical features of the above-mentioned embodiment of the display panel, at least all the advantageous effects brought by the technical solutions of the above-mentioned embodiment of the display panel are provided, and will not be described in detail herein.
As shown in fig. 1 to 7, in an embodiment of the display panel repairing method provided by the present invention, the display panel is adopted in the display panel repairing method, the data line 100 includes a first data line 110 and a second data line 120, wherein the first data line 110 is disconnected;
the display panel repairing method comprises the following steps:
communicating the disconnected portion of the first data line 110 with the repair line 200;
communicating the second data line 120 with the repair line 200, wherein the data signal input is arranged at the communication position of the repair line 200 and the second data line 120;
the disconnected portion of the first data line 110 is communicated with the second data line 120 through the repair line 200;
and, after the disconnected portion of the first data line 110 is connected to the second data line 120 through the repair line 200, a data signal is input to the disconnected portion of the first data line 110 through the second data line 120.
In the above embodiment, when the first data line 110 is disconnected, the repair line 200 can connect the disconnected portion of the first data line 110 with the second data line 120, and the data signal is input to the disconnected portion of the first data line 110 through the second data line 120, so that the first data line 110 is repaired, and the panel display is normal.
The first data line 110 only represents the data line 100 in which the open circuit occurs, the second data line 120 only represents the data line 100 in which the data signal can be input to the data line 100 in which the open circuit occurs, and the number and the position of the first data line 110 and the second data line 120 are not limited.
The projection of the repair line 200 on the plane of the data line 100 intersects with all the data lines 100, only one repair line 200 needs to be arranged, the structure is simple, any one of the broken first data lines 110 can be repaired, and when the first data line 110 has a plurality of lines, the repair line 200 can be cut into a plurality of sections, so that each first data line 110 is communicated with the corresponding second data line 120, and the repair of the plurality of broken data lines 100 is completed.
As a further scheme of the above embodiment, the repair line 200 is communicated with the first data line 110 and the second data line 120 through the laser repair line 200;
the laser position is a position where projections of the first data line 110 and the second data line 120 on the conductive layer intersect with the repair line 200.
In the further scheme of the above embodiment, the laser repair line 200 and the overlapping portion of the first data line 110 and the second data line 120 can be used to enable the repair line 200 to be in cross-layer communication with the first data line 110 and the second data line 120, and the process is simple and convenient.
As a further aspect of the above embodiment, the driving voltages of the data signals input from the beginning of the first data line 110 and the beginning of the second data line 120 are the same.
In a further aspect of the above embodiment, the second data line 120 is connected to the disconnected portion of the first data line 110, and thus the display effect is not affected.
As a further aspect of the above embodiment, the repair line 200 communicates the end of the first data line 110 and the end of the second data line 120.
In a further aspect of the above embodiment, when the first data line 110 is disconnected everywhere, the disconnected portion is connected to the second data line 120, and the data signal is input to the disconnected portion.
In a further aspect of the above embodiment, the first data line 110 has a plurality of lines;
the disconnected portion of each first data line 110 is communicated with a corresponding second data line 120 through a corresponding segment on the repair line 200, and a data signal is input to the disconnected portion of the first data line 110 connected thereto by the repair line 200 through the second data line 120.
In a further aspect of the above embodiment, the repair problem when the plurality of first data lines 110 are disconnected can be solved, the second data lines 120 can correspond to the first data lines 110 one by one, and one second data line 120 can be connected to the disconnected portions of the plurality of first data lines 110 and transmit data signals thereto.
The display panel repairing method provided by the invention can be suitable for pixel structures such as RGBW (red yellow blue white), RGB (red yellow blue), pentile arrangement and the like.
As shown in fig. 5, taking the RGBW pixel structure as an example, when the data line R (n) is open-circuited, the data line R (n) is used as the first data line 110, the data line R (n +1) or the data line R (n-1) or other data lines R can be used as the second data line 120, the first data line 110 and the second data line 120 are connected through the repair line 200, the repair of the open-circuited data line R (n) can be realized, and the data signal input through the second data line 120 controls the pixel of the open-circuited data line R (n).
As shown in fig. 6, in another example, when the data line (n) is disconnected, the data line (n) is used as the first data line 110, the adjacent data line (n +1) or the data line (n-1) can be the second data line 120, the first data line 110 and the second data line 120 are connected through the repair line 200, the pixel 800 of the disconnected portion of the data line (n) is controlled by the data signal input from the second data line 120, the pixel 800 of the disconnected portion of the data line (n) can be recombined with the pixel 800 at the corresponding position on the second data line 120 connected with the pixel 800 to form a new pixel 800, and the area of the pixel 800 is twice as large as before.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A display panel, comprising:
at least 2 data lines isolated from each other, the data lines being used for transmitting data signals;
the data signal driving device is used for inputting data signals to the starting ends of the data lines connected with the data signal driving device;
the insulating layer covers the surface of the data line;
and the conductive layer covers the surface of the insulating layer, repair lines are arranged on the conductive layer, and the projection of the repair lines on the plane where the data lines are located is intersected with all the data lines.
2. The display panel according to claim 1, wherein a projection of the repair line on a plane on which the data lines are located intersects with ends of all of the data lines.
3. The display panel of claim 2, wherein all of the data lines are parallel to each other, ends of all of the data lines are flush, and a projection of the repair line on a plane of the data lines is orthogonal to all of the data lines.
4. The display panel according to any one of claims 1 to 3, wherein the conductive layer is an indium tin oxide layer, a light shielding layer, or a scan line layer.
5. The display panel according to any one of claims 1 to 3, wherein the insulating layer surface includes:
the conductive layer covers part of the repair area and is in contact with the surface of the insulating layer;
and a planarization region, wherein a planarization layer is formed on the surface of the planarization region, and the conductive layer covers part of the planarization region and is in contact with the surface of the planarization layer.
6. A display comprising a display panel according to any one of claims 1 to 5.
7. A display panel repair method, characterized in that the display panel according to any one of claims 1 to 5 is used, the data lines include a first data line and a second data line, wherein the first data line is disconnected;
the display panel repairing method comprises the following steps:
communicating a disconnected portion of the first data line with the repair line;
communicating the second data line with the repairing line, wherein a data signal input is arranged at the communication position of the repairing line and the second data line;
and inputting a data signal to the disconnected portion of the first data line through the second data line after the disconnected portion of the first data line is connected to the second data line through the repair line.
8. The display panel repair method of claim 7, wherein the repair line is communicated with the first data line and the second data line by laser;
and the laser position is a position where the projection of the first data line and the second data line on the conductive layer is intersected with the repair line.
9. The method for repairing a display panel according to claim 7, wherein the driving voltages of the data signals inputted from the start ends of the first data line and the second data line are the same.
10. The display panel repair method of claim 7, wherein the first data line has a plurality of lines;
connecting the disconnected part of each first data line with the corresponding second data line through the corresponding section on the repair line;
inputting a data signal through the second data line to a disconnected portion of the first data line connected thereto by the repair line.
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Application publication date: 20211203 |