CN111479383A - Flexible printed circuit board and display panel - Google Patents
Flexible printed circuit board and display panel Download PDFInfo
- Publication number
- CN111479383A CN111479383A CN202010414172.9A CN202010414172A CN111479383A CN 111479383 A CN111479383 A CN 111479383A CN 202010414172 A CN202010414172 A CN 202010414172A CN 111479383 A CN111479383 A CN 111479383A
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- China
- Prior art keywords
- reinforcing
- circuit board
- printed circuit
- region
- flexible printed
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
- H05K1/0281—Reinforcement details thereof
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
Abstract
A flexible printed circuit board and a display panel, the flexible printed circuit board includes: a first body and a second body; the first body is provided with: a first binding region and a first reinforcing region; the second body is provided with: a second binding region and a second reinforcing region; one end of the first body, which is close to the first reinforcing area, is connected with one end of the second body, which is close to the second reinforcing area; the beneficial effects are that: firstly, because the first reinforcing area and the second reinforcing area are added, when the high-temperature pressing is carried out, the deformation of the first binding area and the second binding area is limited by the first reinforcing area and the second reinforcing area, and the deformation quantity of the first binding area and the second binding area is reduced; and secondly, the first reinforcing area and the second reinforcing area in the flexible printed circuit board comprise various different shapes, the maximum length of the first reinforcing area is larger than or equal to the length of the first binding area, and the maximum length of the second reinforcing area is larger than or equal to the length of the second binding area, so that the deformation amount of the first binding area and the second binding area when the first binding area and the second binding area are pressed at high temperature is further limited.
Description
Technical Field
The application relates to the field of display, in particular to a flexible printed circuit board and a display panel.
Background
At present, in order to ensure the power supply capability of a display panel, an Assembly Printed Circuit Board (PCBA) is generally adopted to weld important electronic components on the Circuit Board, so that input signals of the display panel are processed and then input to a driving chip through a flexible Circuit Board, and thus, the processing and power supply of signals in the display panel are realized; the existing notewood products generally use a Flexible Printed Circuit (FPC) to connect the display panel and the pcb. The connection mode is high-temperature binding, namely under the high-temperature pressing effect, conductive particles in the conductive adhesive are broken under the action of pressure, and the flexible printed circuit board is connected with the assembly printed circuit board in a conduction mode. Because the structure of the flexible printed circuit board in the medium-sized display panel product is designed in a single-layer mode, the texture is soft, the influence of temperature is increased, when the flexible printed circuit board is pressed with glass at high temperature, the flexible printed circuit board is deformed under the influence of temperature, the position of a golden finger on the flexible printed circuit board is warped or distorted, when the flexible printed circuit board is pressed with an assembly printed circuit board at high temperature, the golden finger on the flexible printed circuit board is aligned with a corresponding metal pin on the assembly printed circuit board, the alignment binding effect of the flexible printed circuit board and the assembly printed circuit board is influenced, the binding abnormality such as deviation or fold pressing of the flexible printed circuit board occurs, and the display effect of the display panel is directly influenced.
Therefore, in the existing display panel technology, there is still a problem that the deviation occurs when the flexible printed circuit board is aligned with the corresponding metal pin on the assembly printed circuit board, which affects the alignment binding of the flexible printed circuit board and the assembly printed circuit board, and further affects the display quality of the display panel, and improvement is urgently needed.
Disclosure of Invention
The application relates to a flexible printed circuit board and a display panel, which are used for solving the problems that the deviation occurs when corresponding metal pins on the flexible printed circuit board and an assembly printed circuit board are aligned, the alignment of the flexible printed circuit board and the assembly printed circuit board is influenced, and the display quality of the display panel is influenced.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a pair of flexible printed circuit board, flexible printed circuit board includes: a first body and a second body;
the first body is provided with: a first binding region and a first reinforcing region;
the second body is provided with: a second binding region and a second reinforcing region;
one end of the first body, which is close to the first reinforcing area, is connected with one end of the second body, which is close to the second reinforcing area.
In one embodiment, the first reinforcing region and the second reinforcing region are reinforcing rubber strips.
In one embodiment, the first and second reinforced areas are different in size, and the first and second reinforced areas have the same shape.
In one embodiment, the first reinforcing region and the second reinforcing region are both in a shape of Chinese character hui.
In one embodiment provided by the present application, the first reinforcing region and the second reinforcing region are both "tian" shaped.
In an embodiment provided by the present application, the first reinforcing region and the second reinforcing region are both formed in a plurality of lines parallel to each other.
In an embodiment provided by the present application, the first reinforcing region and the second reinforcing region are both formed by a plurality of mutually parallel 1-shaped regions; the width of the 1-shaped form in the first reinforcing region is greater than the width of the metal connecting line in the first binding region, the length of the 1-shaped form in the first reinforcing region is greater than the length of the metal connecting line in the first binding region, the width of the 1-shaped form in the second reinforcing region is greater than the width of the metal connecting line in the second binding region, and the length of the 1-shaped form in the second reinforcing region is greater than the length of the metal connecting line in the second binding region.
In an embodiment provided by the present application, the first reinforcing region is disposed parallel to the first bonding region, and the second reinforcing region is disposed parallel to the second bonding region.
In an embodiment provided by the present application, the maximum length of the first reinforcing region is greater than or equal to the maximum length of the first binding region, and the maximum length of the second reinforcing region is greater than or equal to the maximum length of the second binding region.
The present application also provides a display panel, the display panel includes: a substrate, a driving chip, a mounting printed circuit board, and the flexible printed circuit board of claim 1;
the driving chip is arranged in a non-display area of the substrate;
the first reinforcing section of the flexible printed circuit board is attached to the non-display section of the substrate, and the second reinforcing section of the flexible printed circuit board is attached to the assembly printed circuit board.
Compared with the prior art, the application provides a flexible printed circuit board and display panel's beneficial effect does:
1. the application provides a flexible printed circuit board, flexible printed circuit board includes: a first body and a second body; the first body is provided with: a first binding region and a first reinforcing region; the second body is provided with: a second binding region and a second reinforcing region; one end of the first body, which is close to the first reinforcing area, is connected with one end of the second body, which is close to the second reinforcing area; due to the fact that the first reinforcing area and the second reinforcing area are added to the flexible printed circuit board, when the first binding area and the second binding area are pressed at high temperature, deformation of the first binding area and the second binding area is limited by the first reinforcing area and the second reinforcing area, and deformation of the first binding area and the second binding area is reduced;
2. furthermore, the first reinforcing region and the second reinforcing region in the flexible printed circuit board provided by the application comprise a plurality of different shapes, the maximum length of the first reinforcing region is greater than or equal to the length of the first binding region, the maximum length of the second reinforcing region is greater than or equal to the length of the second binding region, and deformation of the first binding region and the second binding region when the first binding region and the second binding region are pressed at high temperature is further limited.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a first structure of a flexible printed circuit board according to an embodiment of the present application.
Fig. 2 is a second schematic structural diagram of a flexible printed circuit board according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a third structure of a flexible printed circuit board according to an embodiment of the present application.
Fig. 4 is a fourth structural schematic diagram of the flexible printed circuit board according to the embodiment of the present application.
Fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The present application provides a flexible printed circuit board and a display panel, and particularly refers to fig. 1 to 5.
The conventional notewood product generally uses a Flexible Printed Circuit (FPC) to connect the display panel and the pcb. The connection mode is high-temperature binding, namely under the high-temperature pressing effect, conductive particles in the conductive adhesive are broken under the action of pressure, and the flexible printed circuit board is connected with the assembly printed circuit board in a conduction mode. Because the structure of the flexible printed circuit board in the medium-sized display panel product is designed in a single-layer mode, the texture is soft, the influence of temperature is increased, when the flexible printed circuit board is pressed with glass at high temperature, the flexible printed circuit board is deformed under the influence of temperature, the position of a golden finger on the flexible printed circuit board is warped or distorted, when the flexible printed circuit board is pressed with an assembly printed circuit board at high temperature, the golden finger on the flexible printed circuit board is aligned with a corresponding metal pin on the assembly printed circuit board, the alignment binding effect of the flexible printed circuit board and the assembly printed circuit board is influenced, the binding abnormality such as deviation or fold pressing of the flexible printed circuit board occurs, and the display effect of the display panel is directly influenced. Therefore, the present application provides a flexible printed circuit board and a display panel to solve the above problems.
Referring to fig. 1, a first structure of a flexible printed circuit board 22 provided in the present application is schematically illustrated. The present application provides a flexible printed circuit board 22, the flexible printed circuit board 22 includes: a first body 221 and a second body 222;
the first body 221 is provided with: a first binding area 2211 and a first reinforcing area 2212;
the second body 222 is provided with: a second binding area 2221 and a second reinforcement area 2222;
an end of the first body 221 adjacent to the first reinforcing region 2212 is connected to an end of the second body 222 adjacent to the second reinforcing region 2222; when the flexible printed circuit board is pressed at a high temperature, the first binding area 2211 and the second binding area 2221 are made of metal materials and are easily deformed by heating, and the first reinforcing area 2212 and the second reinforcing area 2222 can prevent the first binding area 2211 and the second binding area 2212 from being deformed and extended, so that the deformation amount of the first binding area 2211 and the second binding area 2212 is reduced.
In an embodiment provided by the present application, the first reinforcing area 2212 and the second reinforcing area 2222 are reinforcing adhesive tapes, which are not affected by high temperature, can stably bond the flexible printed circuit board 22 to the substrate 1 and the flexible printed circuit board 22 to the assembly printed circuit board 23, and can intercept the deformation of the first binding area 2211 at one side of the first reinforcing area 2212, so as to prevent the deformation of the first binding area 2211 from continuing to extend toward the first reinforcing area 2212; similarly, the second binding area 2222 may be configured to intercept the deformation of the second binding area 2221 at one side of the second binding area 2222, so as to prevent the deformation of the second binding area 2221 from continuing to extend toward the second binding area 2222.
Further, the shapes of the first body 221 and the second body 222 are different, the first body 221 is rectangular, the second body 222 is an isosceles trapezoid, and the length of the longer side of the isosceles trapezoid of the second body 222 is equal to the length of the longer side of the rectangular shape of the first body 221; the first reinforcing areas 2212 are of a different size than the second reinforcing areas 2222, and the first reinforcing areas 2212 are of the same shape as the second reinforcing areas 2222.
Referring to fig. 1, in an embodiment provided by the present application, the first reinforcing region 2212 and the second reinforcing region 2222 are in a shape of "hui", where the shape of the "hui" includes two reinforcing rubber strips in a horizontal direction and two reinforcing rubber strips in a vertical direction, so as to better prevent the first binding region 2211 and the second binding region 2221 from extending in the vertical direction in the horizontal direction.
Referring to fig. 2, in an embodiment provided by the present application, the first reinforcing area 2212 and the second reinforcing area 2222 are both shaped like a Chinese character 'tian', and the shape of the Chinese character 'tian' is in the middle of the shape of the Chinese character 'hui', and a transverse reinforcing adhesive tape and a vertical reinforcing adhesive tape are additionally provided, so that the adhesive force between the flexible printed circuit board 22 and the substrate 1 and between the assembled printed circuit boards 23 is increased, and the blocking capability of the degree of thermal deformation of the first binding area 2211 and the second binding area 2221 is also improved.
Referring to fig. 3, in an embodiment provided by the present application, the first reinforcing area 2212 and the second reinforcing area 2222 are both formed by a plurality of parallel "one" shapes, and the plurality of transverse "one" shapes can not only enhance the adhesion between the flexible printed circuit board 22 and the substrate 1 or the assembled printed circuit board 23, but also better prevent the first binding area 2211 and the second binding area 21 from extending to the first reinforcing area 2212 direction and the second reinforcing area 2222 direction, respectively.
Referring to fig. 4, in an embodiment provided by the present application, each of the first reinforcing regions 2212 and the second reinforcing regions 2222 is formed by a plurality of parallel "1" shapes, and since the direction and shape of the "1" shape are the same as those of the metal connecting lines in the first bonding region 2211 and the second bonding region 2221, in order to make the first reinforcing regions 2212 and the second reinforcing regions 2222 better prevent the metal connecting lines in the first bonding region 2211 and the second bonding region 2221 from being deformed, the width of the "1" shape of the first reinforcing regions 2212 is greater than that of the metal connecting lines in the first bonding region 2211, the length of the "1" shape of the first reinforcing regions 2212 is greater than that of the metal connecting lines in the first bonding region 2211, and similarly, the width of the "1" shape of the second reinforcing regions 2222 is greater than that of the metal connecting lines in the second bonding region 2211, the length of the "1" shape of the second reinforcement area 2222 is greater than the length of the metal connection line of the second binding area 2221.
In one embodiment provided herein, the first reinforcing area 2212 is disposed parallel to the first binding area 2211, and the second reinforcing area 2222 is disposed parallel to the second binding area 2221.
In one embodiment provided in the present application, the maximum length of the first reinforcing region 2212 is greater than or equal to the maximum length of the first binding region 2211, so that the metal connecting lines on the outermost sides of the left and right sides of the first binding region 2211 are prevented from being deformed by heat and extending to the left and right sides of the first reinforcing region 2212; the maximum length of the second reinforcement area 2222 is greater than or equal to the maximum length of the second binding area 2221, so that the metal connecting lines at the outermost sides of the left and right sides of the second binding area 2221 are prevented from being deformed by heat and extending to the left and right sides of the second reinforcement area 2222.
Referring to fig. 5, the present application also provides a display panel including: a substrate (the substrate is divided into a display area 1 and a non-display area 2), a driving chip 21, a mount printed circuit board 23, and the flexible printed circuit board 22 of claim 1;
the driving chip 21 is disposed in the non-display region 2 of the substrate 1, and is configured to drive the substrate 1 so that the substrate 1 can normally display;
the first reinforcing area 2212 of the flexible printed circuit board 22 is adhered to the non-display area 2 of the substrate 1, the second reinforcing area 2222 of the flexible printed circuit board 22 is adhered to the assembly printed circuit board 23, the first reinforcing area 2212 and the second reinforcing area 2222 are respectively intercepted at one side of the first binding area 2211 and one side of the second binding area 2221, so as to prevent the first binding area 2211 and the second binding area 2221 from being deformed and extended by heat, and in addition, the first reinforcing area 2212 and the second reinforcing area 2222 are designed to enable the fixation between the flexible printed circuit board 22 and the substrate 1 or the assembly printed circuit board 23 to be more stable.
Therefore, the application provides a flexible printed circuit board and display panel's beneficial effect does: first, the present application provides a flexible printed circuit board, the flexible printed circuit board includes: a first body and a second body; the first body is provided with: a first binding region and a first reinforcing region; the second body is provided with: a second binding region and a second reinforcing region; one end of the first body, which is close to the first reinforcing area, is connected with one end of the second body, which is close to the second reinforcing area; when the flexible printed circuit board added with the first reinforcing area and the second reinforcing area is connected with other electronic elements and is pressed at high temperature, the deformation of the first binding area and the second binding area is limited by the first reinforcing area and the second reinforcing area, and the deformation of the first binding area and the second binding area is reduced; furthermore, the first reinforcing region and the second reinforcing region in the flexible printed circuit board provided by the application comprise a plurality of different shapes, the maximum length of the first reinforcing region is greater than or equal to the length of the first binding region, the maximum length of the second reinforcing region is greater than or equal to the length of the second binding region, and deformation of the first binding region and the second binding region when subjected to high temperature is further limited.
The flexible printed circuit board and the display panel provided by the embodiment of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understand the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A flexible printed circuit board, characterized in that the flexible printed circuit board comprises: a first body and a second body;
the first body is provided with: a first binding region and a first reinforcing region;
the second body is provided with: a second binding region and a second reinforcing region;
one end of the first body, which is close to the first reinforcing area, is connected with one end of the second body, which is close to the second reinforcing area.
2. The flexible printed circuit board according to claim 1, wherein the first reinforcing region and the second reinforcing region are reinforcing adhesive tapes.
3. The flexible printed circuit board of claim 1, wherein the first reinforcing region is different in size from the second reinforcing region, and the first reinforcing region and the second reinforcing region are the same in shape.
4. The flexible printed circuit board according to claim 3, wherein the first reinforcing section and the second reinforcing section are each in a shape of a letter "hui".
5. The flexible printed circuit board according to claim 3, wherein the first reinforcing region and the second reinforcing region are each shaped like a Chinese character 'tian'.
6. The flexible printed circuit board according to claim 3, wherein the first reinforcing section and the second reinforcing section are each formed of a plurality of parallel lines.
7. The flexible printed circuit board according to claim 3, wherein the first reinforcing region and the second reinforcing region are each formed by a plurality of mutually parallel 1-shaped regions; the width of the 1-shaped form in the first reinforcing region is greater than the width of the metal connecting line in the first binding region, the length of the 1-shaped form in the first reinforcing region is greater than the length of the metal connecting line in the first binding region, the width of the 1-shaped form in the second reinforcing region is greater than the width of the metal connecting line in the second binding region, and the length of the 1-shaped form in the second reinforcing region is greater than the length of the metal connecting line in the second binding region.
8. The flexible printed circuit board of claim 1, wherein the first reinforcing region is disposed parallel to the first bonding region and the second reinforcing region is disposed parallel to the second bonding region.
9. The flexible printed circuit board of claim 1, wherein the maximum length of the first reinforcing region is equal to or greater than the maximum length of the first bonding region, and the maximum length of the second reinforcing region is equal to or greater than the maximum length of the second bonding region.
10. A display panel, comprising: a substrate, a driving chip, a mounting printed circuit board, and the flexible printed circuit board of claim 1;
the driving chip is arranged in a non-display area of the substrate;
the first reinforcing section of the flexible printed circuit board is attached to the non-display section of the substrate, and the second reinforcing section of the flexible printed circuit board is attached to the assembly printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414172.9A CN111479383A (en) | 2020-05-15 | 2020-05-15 | Flexible printed circuit board and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414172.9A CN111479383A (en) | 2020-05-15 | 2020-05-15 | Flexible printed circuit board and display panel |
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| Publication Number | Publication Date |
|---|---|
| CN111479383A true CN111479383A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010414172.9A Pending CN111479383A (en) | 2020-05-15 | 2020-05-15 | Flexible printed circuit board and display panel |
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| CN (1) | CN111479383A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859609A (en) * | 2022-06-22 | 2022-08-05 | 京东方科技集团股份有限公司 | Flexible circuit board, display device and preparation method of display device |
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| JP2001094220A (en) * | 1999-09-24 | 2001-04-06 | Seiko Epson Corp | Flexible wiring board, electrooptic device, manufacturing method thereof, and electronic equipment |
| JP2014145843A (en) * | 2013-01-28 | 2014-08-14 | Japan Display Inc | Image display device |
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| CN209643079U (en) * | 2019-01-11 | 2019-11-15 | 欧姆龙株式会社 | Circuit substrate and proximity sensor comprising the circuit substrate |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000269608A (en) * | 1999-03-16 | 2000-09-29 | Casio Comput Co Ltd | Flexible wiring board and display device provided therewith |
| JP2001094220A (en) * | 1999-09-24 | 2001-04-06 | Seiko Epson Corp | Flexible wiring board, electrooptic device, manufacturing method thereof, and electronic equipment |
| JP2014145843A (en) * | 2013-01-28 | 2014-08-14 | Japan Display Inc | Image display device |
| CN107105144A (en) * | 2017-05-19 | 2017-08-29 | 信利光电股份有限公司 | A kind of CCM camera modules circuit board structure and CCM video cameras |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114859609A (en) * | 2022-06-22 | 2022-08-05 | 京东方科技集团股份有限公司 | Flexible circuit board, display device and preparation method of display device |
| CN114859609B (en) * | 2022-06-22 | 2023-11-03 | 京东方科技集团股份有限公司 | Flexible circuit board, display device and preparation method of display device |
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Application publication date: 20200731 |