CN110109299B - Circuit structure of display panel and manufacturing method thereof - Google Patents
Circuit structure of display panel and manufacturing method thereof Download PDFInfo
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- CN110109299B CN110109299B CN201910278866.1A CN201910278866A CN110109299B CN 110109299 B CN110109299 B CN 110109299B CN 201910278866 A CN201910278866 A CN 201910278866A CN 110109299 B CN110109299 B CN 110109299B
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- glass substrate
- metal
- display panel
- groove
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
Abstract
The invention provides a circuit structure of a display panel and a manufacturing method thereof. The circuit structure of the display panel comprises a first glass substrate, a second glass substrate, at least one metal wiring and a side extension wiring, wherein the second glass substrate is arranged opposite to the first glass substrate, the metal wiring is arranged between the first glass substrate and the second glass substrate, the side extension wiring is arranged on the same side face of the first glass substrate and the second glass substrate and is electrically connected with the metal wiring, the second glass substrate is provided with a groove, the groove is used for accommodating the metal wiring, and the depth of the groove is equal to the height of the metal wiring. The manufacturing method of the circuit structure of the display panel comprises the steps of groove etching, metal wiring manufacturing, display panel alignment connection and side face attaching extension wiring. The distance between the first glass substrate and the second glass substrate can be reduced by arranging the groove for accommodating the metal wiring, the phenomenon of printing and disconnection of the wiring extending from the side face is avoided, and the stability of the circuit is improved.
Description
Technical Field
The invention relates to the field of display, in particular to a circuit structure of a display panel and a manufacturing method thereof.
Background
In the future, the development trend of display panels is more and more narrow, so that the line terminals of the display panels are more and more narrow, and in order to be narrower, the terminals are removed, and the lines are directly printed on the side surfaces of the panels, and the lines in the panels are extended for signal transmission.
As shown in fig. 1, which is a schematic diagram of a circuit structure of a display panel in the prior art, the display panel includes a first glass substrate 1, a second glass substrate 2, a metal trace 3 disposed between the first glass substrate 1 and the second glass substrate 2, and a side extension trace 4 disposed on the same side of the first glass substrate 1 and the second glass substrate 2 and electrically connected to the metal trace 3, wherein the side extension trace 4 extends the metal trace 3 between the first glass substrate 1 and the second glass substrate 2, and a cross-sectional view of the side extension trace is shown in fig. 2.
As shown in fig. 3, which is a schematic view of a circuit breaking structure of a display panel in the prior art, after a side surface of the display panel is polished, the metal trace 3 is damaged, and in addition, the thickness of the metal trace 3 is small or the distance between the first glass substrate 1 and the second glass substrate 2 is too large, so that the side surface extension trace 4 cannot be printed or is broken after being printed, which causes a failure in line extension and ultimately causes a panel rejection. In the prior art, the distance between the first glass substrate 1 and the second glass substrate 2 is only a few micrometers, but the few micrometers cannot be guaranteed 100%, and the difference is slightly 10-3The micrometer-sized distance causes problems in the liquid crystal display.
Disclosure of Invention
The invention aims to provide a circuit structure of a display panel and a manufacturing method thereof, which can reduce the distance between a first glass substrate and a second glass substrate, avoid the phenomenon of printing and breaking of side extension wires caused by the damage of metal wires after side polishing or overlarge distance between the first glass substrate and the second glass substrate, increase the thickness and cross section of the metal wires, reduce the damage caused by side polishing and improve the stability of the circuit.
In order to solve the above problem, an embodiment of the present invention provides a circuit structure of a display panel, including:
a first glass substrate;
a second glass substrate disposed opposite to the first glass substrate;
the metal routing is arranged between the first glass substrate and the second glass substrate; and
the side surface extension wires are arranged on the same side surface of the first glass substrate and the second glass substrate and are electrically connected with the metal wires;
the second glass substrate is provided with a groove, and the groove is used for accommodating the metal wiring.
Further, wherein the depth of the groove is 8-12 um.
Further, the depth of the groove is equal to the height of the metal trace.
Further, the thickness of the side extension line is 3-5 um.
Further, the thickness of the first glass substrate and the second glass substrate is 0.4-0.6 mm.
Further, a liquid crystal layer is further included between the first glass substrate and the second glass substrate.
Further, the metal trace and the side extension trace are connected and disposed perpendicular to each other.
Furthermore, the number of the metal wires is 2 or more, the number of the side surface extension wires corresponds to the number of the metal wires, and the side surface extension wires and the metal wires are connected in a one-to-one correspondence manner.
In another embodiment of the present invention, a method for manufacturing a circuit structure of a display panel is provided, including:
s1 etching the groove, providing a second glass substrate, and etching the second glass substrate to form a groove;
s2, a step of manufacturing metal wiring, namely plating a layer of metal in the groove to form the metal wiring;
s3 display panel contraposition connection step, providing a first glass substrate with the size corresponding to the size of the second glass substrate, contraposition connecting the first glass substrate and the second glass substrate, and injecting liquid crystal between the first glass substrate and the second glass substrate to form a liquid crystal layer;
s4, attaching side surface extension wires, namely attaching silver wires and the metal wires to form side surface extension wires on the same side surfaces of the first glass substrate and the second glass substrate through a mold; the side extension wires are electrically connected with the metal wires.
Further, the step S2 of plating a layer of metal in the groove is to uniformly plate a layer of metal on the second glass substrate, and then pattern and corrode the metal to retain the metal in the groove.
The invention has the advantages that the invention provides the circuit structure of the display panel and the manufacturing method thereof, the distance between the first glass substrate and the second glass substrate is reduced by arranging the groove on the second glass substrate for accommodating the metal wiring, and the phenomenon of printing disconnection of the wiring extended from the side surface is avoided; meanwhile, the thickness of metal wiring can be increased, the sectional area can be increased, the damage probability caused by side polishing is greatly reduced, the connection effect is better during side printing, and the stability of the circuit is improved.
Drawings
FIG. 1 is a schematic circuit diagram of a prior art display panel;
FIG. 2 is a schematic cross-sectional view of a circuit structure of a prior art display panel;
FIG. 3 is a schematic diagram of a circuit breaking structure of a prior art display panel;
FIG. 4 is a schematic diagram illustrating a step of completing a groove etching process in the manufacturing of a circuit structure of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram illustrating a step of completing metal routing in manufacturing a circuit structure of a display panel according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram illustrating a step of completing alignment and connection of a display panel during manufacturing a circuit structure of the display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram illustrating a step of completing a side-face-attaching extending trace in manufacturing a circuit structure of a display panel according to an embodiment of the invention;
fig. 8 is a flowchart illustrating a method for fabricating a circuit structure of a display panel according to another embodiment of the present invention.
The components in the figure are identified as follows:
the liquid crystal display panel comprises a first glass substrate 1, a second glass substrate 2, a metal wire 3, a side surface extending wire 4, a groove 5 and a liquid crystal layer 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.
Referring to fig. 4 to 7, an embodiment of the present invention provides a circuit structure of a display panel, including a first glass substrate 1, a second glass substrate 2 disposed opposite to the first glass substrate 1, at least one metal trace 3 disposed between the first glass substrate 1 and the second glass substrate 2, and a side extension trace 4 disposed on the same side of the first glass substrate 1 and the second glass substrate 2 and electrically connected to the metal trace 3, wherein the second glass substrate 2 is disposed with a groove 5, and the groove 5 accommodates the metal trace 3.
Wherein, the depth of recess 5 is 8-12um, preferably 10 um.
Wherein, the depth of the groove 5 is equal to the height of the metal trace 3. The arrangement can ensure that the metal wiring 3 does not form a gap between the first glass substrate 1 and the second glass substrate 2 due to the height and can be completely contacted, and the side extension wiring 4 is prevented from being broken when being printed or after being printed.
Wherein, the thickness of the side extension line 4 is 3-5 um. The side extension tracks 4 are used for side bonding.
Wherein the thickness of the first glass substrate 1 and the second glass substrate 2 is 0.4-0.6mm, preferably 0.5 mm.
Wherein, a liquid crystal layer 6 is further included between the first glass substrate 1 and the second glass substrate 2. In the existing liquid crystal displays, such as mobile phones, televisions and computers, liquid crystal is dropped between two layers of glass to form a liquid crystal layer 6, and then a line is extended out of the liquid crystal layer 6 to control the liquid crystal.
The metal wire 3 and the side extension wire 4 are connected perpendicularly to each other.
The number of the metal wires 3 is 2 or more, the number of the side extension wires 4 corresponds to the number of the metal wires 3, and the side extension wires 4 are connected with the metal wires 3 in a one-to-one correspondence manner.
The side extension wire 4 and the metal wire 3 may be made of the same material.
Referring to fig. 8, another embodiment of the present invention provides a method for manufacturing a circuit structure of a display panel, including the steps of:
s1 etching the groove, providing a second glass substrate 2, and etching the second glass substrate to form the groove 5.
Please refer to fig. 4, which is a schematic structural diagram for completing step S1.
And S2, a step of manufacturing metal wiring, namely plating a layer of metal in the groove 5 to form the metal wiring 3.
The way of plating a layer of metal in the groove 5 is to uniformly plate a layer of metal on the second glass substrate 2, and then pattern the corrosion metal to retain the metal in the groove 5.
Please refer to fig. 5, which is a schematic structural diagram for completing step S2.
And S3, performing display panel alignment connection, namely providing a first glass substrate 1 with the size matched with that of the second glass substrate 2, performing alignment connection on the first glass substrate 1 and the second glass substrate 2, and injecting liquid crystal between the first glass substrate 1 and the second glass substrate 2 to form a liquid crystal layer 6.
Please refer to fig. 6, which is a schematic structural diagram for completing step S3.
S4, attaching side extension wires, namely attaching silver wires and the metal wires 3 to the same side of the first glass substrate 1 and the second glass substrate 2 through a mold to form side extension wires 4; the side extended trace 4 is electrically connected with the metal trace 3.
Please refer to fig. 7, which is a schematic structural diagram for completing step S4.
The invention has the advantages that the invention provides the circuit structure of the display panel and the manufacturing method thereof, the distance between the first glass substrate and the second glass substrate is reduced by arranging the groove on the second glass substrate for accommodating the metal wiring, and the phenomenon of printing disconnection of the wiring extended from the side surface is avoided; meanwhile, the thickness of metal wiring can be increased, the sectional area can be increased, the damage probability caused by side polishing is greatly reduced, the connection effect is better during side printing, and the stability of the circuit is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A circuit structure of a display panel is characterized by comprising
A first glass substrate;
a second glass substrate disposed opposite to the first glass substrate;
the metal routing is arranged between the first glass substrate and the second glass substrate; and
the side surface extension wires are arranged on the same side surface of the first glass substrate and the second glass substrate and are electrically connected with the metal wires;
the second glass substrate is provided with a groove, and the groove is used for accommodating the metal wiring; and plating a layer of metal in the groove to form the metal wire, wherein the depth of the groove is equal to the height of the metal wire.
2. The circuit structure of display panel according to claim 1, wherein the depth of the groove is 8-12 um.
3. The circuit structure of the display panel according to claim 1, wherein the thickness of the side extended trace is 3-5 um.
4. The circuit structure of the display panel according to claim 1, wherein the first glass substrate and the second glass substrate each have a thickness of 0.4 to 0.6 mm.
5. The circuit structure of the display panel according to claim 1, further comprising a liquid crystal layer between the first glass substrate and the second glass substrate.
6. The circuit structure of the display panel according to claim 1, wherein the metal traces and the side extension traces are connected perpendicularly to each other.
7. The circuit structure of the display panel according to claim 1, wherein the number of the metal traces is 2 or more, the number of the side extension traces corresponds to the number of the metal traces, and the side extension traces and the metal traces are connected in a one-to-one correspondence manner.
8. A method of manufacturing a wiring structure of a display panel according to any one of claims 1 to 7, comprising the steps of:
s1 etching the groove, providing a second glass substrate, and etching the second glass substrate to form a groove;
s2, a step of manufacturing metal wiring, namely plating a layer of metal in the groove to form the metal wiring; the depth of the groove is equal to the height of the metal routing;
s3 display panel contraposition connection step, providing a first glass substrate with the size corresponding to the size of the second glass substrate, contraposition connecting the first glass substrate and the second glass substrate, and injecting liquid crystal between the first glass substrate and the second glass substrate to form a liquid crystal layer;
s4, attaching side surface extension wires, namely attaching silver wires and the metal wires to form side surface extension wires on the same side surfaces of the first glass substrate and the second glass substrate through a mold; the side extension wires are electrically connected with the metal wires.
9. The method as claimed in claim 8, wherein the step S2 comprises plating a metal layer on the second glass substrate, and patterning the corrosion metal to retain the metal layer in the grooves.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278866.1A CN110109299B (en) | 2019-04-09 | 2019-04-09 | Circuit structure of display panel and manufacturing method thereof |
| PCT/CN2019/083465 WO2020206714A1 (en) | 2019-04-09 | 2019-04-19 | Circuit structure of display panel and manufacturing method therefor, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278866.1A CN110109299B (en) | 2019-04-09 | 2019-04-09 | Circuit structure of display panel and manufacturing method thereof |
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| CN110109299A CN110109299A (en) | 2019-08-09 |
| CN110109299B true CN110109299B (en) | 2020-11-10 |
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| CN201910278866.1A Active CN110109299B (en) | 2019-04-09 | 2019-04-09 | Circuit structure of display panel and manufacturing method thereof |
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| CN (1) | CN110109299B (en) |
| WO (1) | WO2020206714A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111223411B (en) * | 2019-12-11 | 2022-04-05 | 京东方科技集团股份有限公司 | Substrate for micro LED display panel and manufacturing method thereof |
| CN111766965A (en) * | 2020-05-06 | 2020-10-13 | 南昌欧菲显示科技有限公司 | Touch panel, preparation method thereof and touch panel assembly |
| CN114430001A (en) * | 2022-01-10 | 2022-05-03 | 深圳Tcl新技术有限公司 | Glass substrate processing method and display device |
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- 2019-04-09 CN CN201910278866.1A patent/CN110109299B/en active Active
- 2019-04-19 WO PCT/CN2019/083465 patent/WO2020206714A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020206714A1 (en) | 2020-10-15 |
| CN110109299A (en) | 2019-08-09 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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