CN112740318A - Panel and manufacturing method thereof - Google Patents
Panel and manufacturing method thereof Download PDFInfo
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- CN112740318A CN112740318A CN201880096026.7A CN201880096026A CN112740318A CN 112740318 A CN112740318 A CN 112740318A CN 201880096026 A CN201880096026 A CN 201880096026A CN 112740318 A CN112740318 A CN 112740318A
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- panel
- switch
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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
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
Abstract
A panel (10) comprises a plurality of connecting units (11), wherein each connecting unit (11) comprises a first connecting line (113), a second connecting line (115) and a switch piece (117), the switch piece (117) is connected between the first connecting line (113) and the second connecting line (115), the first connecting line (113) and the edge of the panel (10) are arranged adjacently, and when the switch piece (117) is closed, the first connecting line (113) and the second connecting line (115) are electrically disconnected. The invention also provides a manufacturing method of the panel.
Description
The invention relates to the technical field of display, in particular to a panel and a manufacturing method thereof.
After the prior manufacturing process of the display panel is completed, the display panel needs to be cut into the required product size by a laser cutting process. Because the display panel is including laying a large amount of connecting wires that are used for electric connection between the functional device to the interval between the adjacent connecting wire is only ten microns, makes adjacent connecting wire cause the short circuit when display panel carries out laser cutting easily, influences the product yield after the cutting.
Disclosure of Invention
In order to solve the above problems, an embodiment of the invention discloses a panel capable of avoiding short circuit of a connecting line and a manufacturing method thereof.
The utility model provides a panel, includes a plurality of linkage elements, every linkage element includes first connecting wire, second connecting wire and switch spare, the switch spare connect in first connecting wire with between the second connecting wire, first connecting wire with the edge of panel sets up adjacently, works as when the switch spare is closed, first connecting wire with second connecting wire electrical property disconnection.
A method for manufacturing a panel comprises the following steps:
providing a prefabricated panel, wherein the prefabricated panel comprises a plurality of connecting units, each connecting unit comprises a first connecting line, a second connecting line and a switch piece, the switch piece is connected between the first connecting line and the second connecting line, and when the switch piece is closed, the first connecting line and the second connecting line in the connecting unit corresponding to the switch piece are electrically disconnected;
cutting the prefabricated panel and cutting off first connecting lines of the plurality of connecting units;
and controlling the switch pieces of the plurality of connecting units to be closed to form the panel.
According to the panel and the manufacturing method thereof provided by the invention, the switch pieces for connecting the first connecting lines and the second connecting lines are arranged in the connecting units, so that even if the first connecting lines of the adjacent connecting units are electrically connected together due to laser cutting, the first connecting lines and the second connecting lines in the corresponding connecting units can be electrically disconnected only by closing the switch pieces, and the short circuit between the adjacent connecting units is avoided. Therefore, the product yield of the panel is improved.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic plan view of a panel according to an embodiment of the present invention;
fig. 2 is a schematic plan view of a display device with a panel according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for manufacturing a panel according to an embodiment of the present invention;
fig. 4 is a schematic plan view of a prefabricated panel.
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.
Referring to fig. 1, fig. 1 is a schematic plan view of a panel according to an embodiment of the present invention. The panel 10 includes a plurality of connection units 11, and each connection unit 11 includes a first connection line 113, a second connection line 115, and a switch 117. The switch 117 is connected between a first connection line 113 and a second connection line 115 to control the connection and disconnection of the power, wherein the first connection line 113 is disposed adjacent to an edge of the panel 10. When the switch 117 is closed, the first connection line 113 is electrically disconnected from the second connection line 115.
When the panel is formed, the edge of the panel needs to be cut by laser, and since the switch 117 is disposed on the connecting unit 11, even if the first connecting lines 113 of adjacent connecting units 11 are electrically connected together due to laser cutting, the first connecting lines 113 and the second connecting lines 115 in the corresponding connecting units 11 can be electrically disconnected by turning off the switch 117, thereby avoiding short circuit between the adjacent connecting units 11.
In this embodiment, the panel 10 is a flexible display panel. After the front process is completed, the prefabricated panel of the flexible display panel needs to be cut by a laser cutting process to form the panel 10 with a required size. The panel 10 is not limited to a flexible panel, but may be a rigid panel; the panel 10 is not limited to a display panel, and the panel 10 may be other types of panels, such as a touch panel, an array substrate, and the like.
The panel 10 further includes a power circuit 12 and a control line 13 for electrically connecting the switch 117 and the power circuit 12. The power supply circuit 12 is configured to output a level signal to the switching element 117 through the control line 13 to control the switching element 117 to be turned on or off. In the present embodiment, the number of the control lines 13 is one, and the control lines 13 are electrically connected between the power circuit 12 and the switches 117 of all the connection units 11, so that the switches 117 of all the connection units 11 can be controlled collectively. In other embodiments, the number of the control lines 13 may be multiple, and each control line 13 is electrically connected between the power circuit 12 and the switch 117 of a corresponding one of the connection units 11 to individually control each switch 117.
When the switch 117 receives the generated first level signal, the switch 117 is turned on to electrically connect the first connection line 113 and the second connection line 115 of the corresponding connection unit 11; when the switch 117 receives the second level signal generated by the power circuit 12, the switch 117 is closed to disconnect the first connection line 113 and the second connection line 115 of the corresponding connection unit 11. In some embodiments, the switch 117 is a high-level conducting switch, the first level signal is a high-level signal, and the second level signal is a low-level signal. Obviously, in other embodiments, the switch 117 may also be a low-level conducting switch, the first level signal is a low-level signal, and the second level signal is a high-level signal.
The first connecting line 113 of each connecting unit 11 is used to be cut off in response to a cutting operation, and the power supply circuit 12 generates a first level signal before the first connecting line 113 is not cut off and generates a second level signal after the first connecting line 113 is cut off in response to the cutting operation.
In this embodiment, the switching element 117 is a thin film transistor. The switch 117 may include a gate G1, a source S1 and a drain D1, the source S1 and the drain D1 of each switch 117 are electrically connected to the first connection line 113 and the second connection line 115, respectively, and the gate G1 is electrically connected to the corresponding control line 13, so that the gate G1 of the switch 117 may be opened or closed by a level signal received from the power circuit 12 through the control line 13. When the switch 117 is a high-level conducting switch, the switch 117 is an N-type thin film transistor, and when the switch 117 is a low-level conducting switch, the switch 117 is a P-type thin film transistor.
In the present embodiment, the pitch between the first connecting lines 113 of the adjacent connecting units 11 is about 10 to 20 μm. In a normal electrical test, for example, when the electrical test is performed on the prefabricated panel (with a larger size) before the panel 10 is formed by laser cutting, the first level signal is transmitted to the switch 117, so that the switch 117 is opened to electrically connect the first connection line 113 and the second connection line 115 of the corresponding connection unit 11, thereby facilitating the electrical test. After the prefabricated panel is cut by the laser, the first connecting lines 113 of the adjacent connecting units 11 are easily electrically connected together due to the laser cutting, and the second level signal is transmitted to the switch 117, so that the switch 117 is closed to electrically disconnect the first connecting lines 113 and the second connecting lines 115, and the adjacent connecting units 11 are prevented from being short-circuited.
It is understood that the switch 117 may be other types of control switches, and it is only necessary to control the opening or closing of the switch 117 to achieve the electrical disconnection and electrical connection between the first connection line 113 and the second connection line 115. For example, a Bipolar Junction Transistor (BJT), a field effect Transistor, or the like may also be used.
The panel 10 further comprises a functional area 15 and a bonding area 17. The functional area 15 is used for arranging a first functional device and the bonding area 17 is used for arranging a second functional device. In this embodiment, the first functional device is a thin film transistor of the array substrate, the second functional device is a driver chip, and the driver chip is disposed in the bonding region 17 in a binding manner. A plurality of connection units 11 are arranged at the bonding area 17.
The panel 10 further includes a plurality of coupling terminals 171, and the coupling terminals 171 are provided at the coupling regions 17. One end of the second connection line 115 of each connection unit 11, which is away from the switch 117, is electrically connected to a connection terminal 171.
Referring to fig. 2, the present invention further provides a display device 200, wherein the display device 200 includes the panel 10. The display device 200 may be a display or an electronic device such as a mobile phone, a tablet computer, a notebook computer, or a camera with a display screen.
Referring to fig. 3, fig. 3 is a flowchart of a method for manufacturing a panel according to an embodiment of the present invention. The manufacturing method comprises the following steps:
Further, the prefabricated panel 301 further comprises a functional area 35, a bonding area 37 and a testing area 39. The test region 39 is disposed adjacent to an end of the bonding region 37 remote from the functional region 35. A plurality of connection units 31 are arranged at the bonding area 35. The first connection lines 313 of the connection unit 31 extend from the bonding area 37 to the test area 39. The test area 39 is used for testing the electrical property of the connection unit 31.
The functional area 35 is used for arranging a first functional device and the bonding area 37 is used for arranging a second functional device. In this embodiment, the first functional device is a thin film transistor of the array substrate, and the second functional device is a driver chip, and the driver chip is disposed in the bonding region 37 in a binding manner.
The prefabricated panel 301 further includes a plurality of bonding terminals 371, the bonding terminals 371 being provided at the bonding regions 37. One end of the second connection line 315 of each connection unit 31, which is away from the switch 317, is electrically connected to a connection terminal 371.
The prefabricated panel 301 further comprises a plurality of test terminals 391, the test terminals 391 being provided in the test area 39. One end of the first connection wire 313 of each connection unit 31 away from the switch 317 is electrically connected to a test terminal 391.
The electrical test of the connection unit 31 of the prefabricated panel 301 includes: the connection unit 31 is electrically tested in the test area 39.
The cutting the prefabricated panel 301 comprises: the test area 39 is removed by laser cutting along the boundary between the test area 39 and the bonding area 37, thereby cutting the first connection lines 313 of the plurality of connection units 31.
The opening of the switch 317 to electrically connect the first connection line 313 and the second connection line 315 in the connection unit 31 corresponding to the switch 317 includes: by transmitting the first level signal to the switch 317, the switch 317 is opened to electrically connect the first connection line 313 and the second connection line 315. The first level signal is a high level signal.
The closing of the switch 317 to electrically disconnect the first connection line 313 and the second connection line 315 in the connection unit 31 corresponding to the switch 317 includes: by transmitting the second level signal to the switch 317, the switch 317 is closed to electrically disconnect the first connection line 313 and the second connection line 315 of the corresponding connection unit 31. The second level signal is a low level signal.
The prefabricated panel 301 further comprises a power circuit 32 and a control line 33 for electrically connecting the switch member 317 with the power circuit 32. The power supply circuit 32 is configured to output a level signal to the switching member 317 through the control line 33 so as to control the switching member 311 to be turned on or off. In the present embodiment, the number of the control lines 13 is one, and the control lines 13 are electrically connected between the power circuit 12 and the switch members 317 of all the connection units 31, so that the switch members 317 of all the connection units 31 can be collectively controlled. In other embodiments, the number of the control lines 33 may be multiple, and each control line 33 is electrically connected between the power circuit 32 and the switch 317 of a corresponding one of the connection units 31 to individually control each switch 317.
When the switch 317 receives the generated first level signal, the switch 317 is opened to electrically connect the first connection line 313 and the second connection line 315 of the corresponding connection unit 31; when the switch member 317 receives the second level signal generated by the power circuit 32, the switch member 317 is closed to disconnect the first connection line 313 and the second connection line 315 of the corresponding connection unit 31. In some embodiments, the switch 317 is a high-level conducting switch, the first level signal is a high-level signal, and the second level signal is a low-level signal. Obviously, in other embodiments, the switch 317 may also be a low-level conducting switch, the first level signal is a low-level signal, and the second level signal is a high-level signal.
In this embodiment, the switching member 317 is a thin film transistor. The switching member 317 may include a gate, a source, and a drain, the source and the drain of each switching member 317 are electrically connected to the first connection line 313 and the second connection line 315, respectively, and the gate is electrically connected to the power circuit, so that the gate of the switching member 317 may receive a level signal from the power circuit 32, and the switching member 317 may be turned on or off accordingly. When the switch 117 is a high-level conducting switch, the switch 317 is an N-type thin film transistor, and when the switch 317 is a low-level conducting switch, the switch 317 is a P-type thin film transistor.
In the present embodiment, the pitch between the first connecting lines 313 of the adjacent connecting units 31 is about 10 to 20 μm. It is understood that the switch 317 may be other types of control switches, and it is only necessary to control the opening or closing of the switch 317 to achieve the electrical disconnection and electrical connection between the first connection line 313 and the second connection line 315. For example, a Bipolar Junction Transistor (BJT), a field effect Transistor, or the like may also be used.
In one embodiment, step 305 may be performed after step 303 and before step 304, that is, a method for manufacturing a panel includes the following steps: providing a prefabricated panel, wherein the prefabricated panel comprises a plurality of connecting units, each connecting unit comprises a first connecting line, a second connecting line and a switch piece, the switch piece is connected between the first connecting line and the second connecting line, and when the switch piece is closed, the first connecting line and the second connecting line in the connecting unit corresponding to the switch piece are electrically disconnected; opening the switch piece to electrically connect the first connecting wire and the second connecting wire in the connecting unit corresponding to the switch piece; carrying out electrical test on the connecting unit of the prefabricated panel; controlling the switch pieces of the plurality of connection units to be closed; and carrying out laser cutting on the prefabricated panel, and cutting off the first connecting lines of the plurality of connecting units to form the panel.
It is understood that steps 302 to 303 and 305 may be omitted from the manufacturing method. In one embodiment, a method of making a panel includes the steps of: providing a prefabricated panel, wherein the prefabricated panel comprises a plurality of connecting units, each connecting unit comprises a first connecting line, a second connecting line and a switch piece, the switch piece is connected between the first connecting line and the second connecting line, and when the switch piece is closed, the first connecting line and the second connecting line in the connecting unit corresponding to the switch piece are electrically disconnected; and cutting the prefabricated panel to cut off the first connecting lines of the plurality of connecting units.
According to the panel and the manufacturing method thereof provided by the invention, the switch pieces for connecting the first connecting lines and the second connecting lines are arranged in the connecting units, so that even if the first connecting lines of the adjacent connecting units are electrically connected together due to laser cutting, the first connecting lines and the second connecting lines in the corresponding connecting units can be electrically disconnected only by closing the switch pieces, and the short circuit between the adjacent connecting units is avoided. So, effectively avoid the cutting back the bad problem of circuit that the panel appears improves the performance of panel.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (15)
- The utility model provides a panel, its characterized in that includes a plurality of linkage units, and every linkage unit includes first connecting wire, second connecting wire and switch spare, the switch spare connect in first connecting wire with between the second connecting wire, first connecting wire with the edge of panel sets up adjacently, works as when the switch spare is closed, first connecting wire with second connecting wire electrical property disconnection.
- The panel of claim 1, further comprising a power circuit and a control line for electrically connecting the switching element to the power circuit.
- The panel according to claim 2, wherein the number of the control lines is plural, and each control line is electrically connected between the power circuit and the switching element corresponding to one of the connection units.
- The panel according to claim 2, wherein the number of the control lines is one, and the control lines are electrically connected between the power circuit and the switching pieces of all the connection units.
- The panel according to claim 2, wherein when the switch member receives the generated first level signal, the switch member is turned on to electrically connect the first connection line and the second connection line; when the switch part receives a second level signal generated by the power circuit, the switch part is closed to disconnect the electric connection between the first connecting line and the second connecting line.
- The panel of claim 5, wherein the first connection line of each connection unit is adapted to be cut in response to a cutting operation, and the power circuit generates a first level signal before the first connection line is not cut and generates a second level signal after the first connection line is cut in response to the cutting operation.
- The panel according to claim 1, wherein a pitch between the first connection lines of the adjacent connection units is 10 to 20 μm.
- A panel as claimed in any one of claims 1 to 7, wherein said switching elements are thin film transistors.
- The panel according to any one of claims 1 to 7, wherein the panel comprises a functional region for disposing a first functional device and a bonding region for disposing a second functional device, and the plurality of connection units are disposed in the bonding region.
- A panel as claimed in any one of claims 1 to 7, characterized in that the panel is a flexible display panel.
- A method for manufacturing a panel is characterized by comprising the following steps:providing a prefabricated panel, wherein the prefabricated panel comprises a plurality of connecting units, each connecting unit comprises a first connecting line, a second connecting line and a switch piece, the switch piece is connected between the first connecting line and the second connecting line, and when the switch piece is closed, the first connecting line and the second connecting line in the connecting unit corresponding to the switch piece are electrically disconnected;and cutting the prefabricated panel to cut off the first connecting lines of the plurality of connecting units.
- The method according to claim 11, wherein the prefabricated panel includes a test region, a bonding region and a functional region, the test region is disposed adjacent to an end of the bonding region away from the functional region, the plurality of connection units are disposed at the bonding region, the first connection lines extend from the bonding region to the test region,the cutting the prefabricated panel comprises: and laser cutting is carried out along the boundary line between the test area and the combination area to remove the test area, so that the first connecting lines of the plurality of connecting units are cut off.
- The method of manufacturing of claim 12, wherein after providing the pre-formed panel and before cutting the pre-formed panel, the method further comprises the steps of:opening a switch piece of the connecting unit to electrically connect the first connecting wire and the second connecting wire in the connecting unit corresponding to the switch piece;and performing electrical test on the connection unit in the test area.
- The method of claim 13, wherein the opening of the switch of the connection unit to electrically connect the first connection line and the second connection line comprises: the switch member is turned on to electrically connect the first connection line and the second connection line by transmitting a first level signal to the switch member.
- The method of manufacturing of claim 14, wherein the controlling of the closing of the switching elements of the plurality of connection units comprises: the switch member is closed to electrically disconnect the first connection line and the second connection line by transmitting a second level signal to the switch member.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/113957 WO2020093195A1 (en) | 2018-11-05 | 2018-11-05 | Panel and manufacturing method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112740318A true CN112740318A (en) | 2021-04-30 |
Family
ID=70612358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880096026.7A Pending CN112740318A (en) | 2018-11-05 | 2018-11-05 | Panel and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112740318A (en) |
| WO (1) | WO2020093195A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303462A (en) * | 2008-07-04 | 2008-11-12 | 友达光电股份有限公司 | Liquid crystal display panel testing circuit and method |
| CN102789076A (en) * | 2012-08-01 | 2012-11-21 | 深圳市华星光电技术有限公司 | Detection circuit and manufacturing method for liquid crystal display panel |
| CN203300197U (en) * | 2013-06-08 | 2013-11-20 | 北京京东方光电科技有限公司 | Wiring structure of substrate and display device |
| CN104849881A (en) * | 2015-05-04 | 2015-08-19 | 上海天马微电子有限公司 | Display device and driving method thereof |
| JP2015172530A (en) * | 2014-03-12 | 2015-10-01 | シナプティクス・ディスプレイ・デバイス合同会社 | Semiconductor device and manufacturing method of the same |
| CN106023915A (en) * | 2016-05-26 | 2016-10-12 | 深圳市华星光电技术有限公司 | Control circuit and display device |
-
2018
- 2018-11-05 WO PCT/CN2018/113957 patent/WO2020093195A1/en active Application Filing
- 2018-11-05 CN CN201880096026.7A patent/CN112740318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303462A (en) * | 2008-07-04 | 2008-11-12 | 友达光电股份有限公司 | Liquid crystal display panel testing circuit and method |
| CN102789076A (en) * | 2012-08-01 | 2012-11-21 | 深圳市华星光电技术有限公司 | Detection circuit and manufacturing method for liquid crystal display panel |
| CN203300197U (en) * | 2013-06-08 | 2013-11-20 | 北京京东方光电科技有限公司 | Wiring structure of substrate and display device |
| JP2015172530A (en) * | 2014-03-12 | 2015-10-01 | シナプティクス・ディスプレイ・デバイス合同会社 | Semiconductor device and manufacturing method of the same |
| CN104849881A (en) * | 2015-05-04 | 2015-08-19 | 上海天马微电子有限公司 | Display device and driving method thereof |
| CN106023915A (en) * | 2016-05-26 | 2016-10-12 | 深圳市华星光电技术有限公司 | Control circuit and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020093195A1 (en) | 2020-05-14 |
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Application publication date: 20210430 |