CN109618501B - Display screen body and flexible circuit board's counterpoint mechanism and counterpoint system - Google Patents
Display screen body and flexible circuit board's counterpoint mechanism and counterpoint system Download PDFInfo
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- CN109618501B CN109618501B CN201910104319.1A CN201910104319A CN109618501B CN 109618501 B CN109618501 B CN 109618501B CN 201910104319 A CN201910104319 A CN 201910104319A CN 109618501 B CN109618501 B CN 109618501B
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- circuit board
- flexible circuit
- alignment
- alignment mark
- pressing plate
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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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor
- H05K3/326—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor the printed circuit having integral resilient or deformable parts, e.g. tabs or parts of flexible circuits
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10128—Display
Abstract
The invention relates to an alignment mechanism and an alignment system for a display screen body and a flexible circuit board. The counterpoint mechanism of the display screen body and flexible circuit board includes: the pressing plate is used for pressing and connecting the display screen body and the flexible circuit board, and alignment marks are arranged on the pressing plate; the flexible circuit board is fixed on the pressing plate; and the projection of the flexible circuit board on the pressing plate does not cover the alignment mark. By applying the alignment mechanism of the display screen body and the flexible circuit board, the alignment mark is arranged on the pressing plate, and the projection of the flexible circuit board on the pressing plate can not cover the alignment mark. The display screen has the advantages that the definition of the alignment mark in the visual field is integrally improved, so that the alignment precision is improved, the crimping success rate of the display screen body and the flexible circuit board can be improved, and the display screen is favorable for application. In addition, the invention also relates to an alignment system of the display screen body and the flexible circuit board.
Description
Technical Field
The invention relates to the technical field of display, in particular to an alignment mechanism and an alignment system for a display screen body and a flexible circuit board.
Background
When the OLED is manufactured, the display screen body needs to be subjected to point screen aging at the module section, when the screen is required to be subjected to point screen aging, a special device is needed to align and crimp a plurality of pins (metal wiring) on the screen body and a plurality of pins (metal wiring) on a Flexible Printed Circuit (FPC), and the screen body after crimping needs to be moved into an aging furnace to perform aging test for a period of time.
In a conventional alignment operation, alignment marks (marks) are provided on a flexible circuit board. However, since the alignment mark on the flexible circuit board is yellow and the substrate PI (coated on the glass) of the flexible screen body is also yellow, the reflected light intensity of the glass is close to that of the alignment mark on the flexible circuit board, so that the alignment mark on the flexible circuit board is not clear in the visual field, and a positioning error is easily generated, which causes a problem of low success rate of crimping and is not beneficial to application.
Disclosure of Invention
Therefore, it is necessary to provide an alignment mechanism and an alignment system for a display screen and a flexible circuit board, which can improve the success rate of crimping, in order to solve the problem of how to improve the success rate of crimping.
An alignment mechanism for a display screen body and a flexible circuit board comprises:
the pressing plate is used for pressing and connecting the display screen body and the flexible circuit board, and alignment marks are arranged on the pressing plate; the flexible circuit board is fixed on the pressing plate;
and the projection of the flexible circuit board on the pressing plate does not cover the alignment mark.
In one embodiment, the alignment mechanism further comprises a pressing block for pressing the flexible circuit board on the pressing plate. The pressing block can ensure that the flexible circuit board and the pressing plate are fixed in position.
In one embodiment, the projection of the pressing block on the pressing plate does not cover the alignment mark. Therefore, the pressing block can be prevented from shielding the alignment mark to influence the alignment precision.
In one embodiment, the alignment mark is located in an area enclosed by an outer contour line of a projection of the flexible circuit board on the pressing plate, and the flexible circuit board is provided with an alignment hole for exposing the alignment mark. Thus, the alignment mark can be exposed from the alignment hole, and the flexible circuit board is prevented from shielding the alignment mark 112.
In one embodiment, the alignment mark is located outside an area enclosed by an outer contour line of a projection of the flexible circuit board on the press plate. Therefore, an opening for exposing the alignment mark is not required to be formed in the flexible circuit board, and the process difficulty is reduced.
In one embodiment, the flexible circuit board includes a plurality of metal traces, and the alignment marks are even in number and symmetrically disposed on two sides of the plurality of metal traces. Can follow the both sides of a plurality of metal wiring like this and counterpoint to guarantee the precision of counterpointing.
In one embodiment, the alignment marks are grooves filled with light reflecting materials. Through filling reflective material in the recess, can increase the contrast of counterpoint mark and the counterpoint mark on the display screen body in the field of vision of clamp plate.
In one embodiment, the depth of the groove is 0.2 mm-0.5 mm; and/or the opening shape of the groove is cross-shaped, circular or polygonal.
In one embodiment, the alignment marks are protrusions coated with a light reflecting material. By coating the reflective material on the protrusions, the contrast between the alignment marks of the pressing plate and the alignment marks on the display screen body in the visual field can be increased.
In addition, still provide a counterpoint system of display screen body and flexible circuit board, include:
the display screen body is provided with a screen body alignment mark; and
according to the alignment mechanism of the display screen body and the flexible circuit board, the alignment mark of the alignment mechanism is arranged corresponding to the alignment mark of the screen body.
By applying the alignment mechanism and the alignment system of the display screen body and the flexible circuit board, the alignment mark is arranged on the pressing plate, and the projection of the flexible circuit board on the pressing plate can not cover the alignment mark. The display screen has the advantages that the definition of the alignment mark in the visual field is integrally improved, so that the alignment precision is improved, the crimping success rate of the display screen body and the flexible circuit board can be improved, and the display screen is favorable for application.
Drawings
Fig. 1 is a schematic plan view illustrating an alignment mechanism between a display panel and a flexible circuit board according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an alignment mechanism between a display panel and a flexible circuit board according to an embodiment of the invention;
fig. 3 is a schematic plan view of an alignment mechanism between a display panel and a flexible circuit board according to another embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In a conventional alignment operation, alignment marks (marks) are provided on a flexible circuit board. However, the inventor of the present invention found that since the alignment mark on the flexible printed circuit board is yellow and the substrate PI (coated on the glass) of the flexible screen body is also yellow, the reflected light intensity of the glass is close to the reflected light intensity of the alignment mark on the flexible printed circuit board, which causes the alignment mark on the flexible printed circuit board to be unclear in the visual field, easily causes a positioning error, and causes a problem of low success rate of pressure welding, which is not favorable for application.
Therefore, in order to solve the problem of how to improve the success rate of the pressure welding, the inventor of the present invention has developed an alignment mechanism and an alignment system for a display screen and a flexible circuit board, which can improve the success rate of the pressure welding.
Referring to fig. 1, an alignment mechanism 100 for a display panel and a flexible circuit board according to an embodiment of the invention includes a pressing plate 110 and a flexible circuit board 120. The display panel is an OLED (Organic Light-Emitting Diode), such as an AMOLED (Active-matrix Organic Light-Emitting Diode) display panel or a PMOLED (Passive-matrix Organic electroluminescent Diode).
The pressing plate 110 is used for pressing the display panel (not shown) and the flexible circuit board 120. The pressing plate 110 has alignment marks 112 thereon. When the display screen body (not shown) is pressed against the flexible circuit board 120, the alignment mark 112 is used for aligning with the alignment mark on the display screen body.
Wherein, the flexible circuit board 120 is fixed on the pressure plate 110. For example, the fixing can be performed by a positioning pin, and the bonding fixing can also be performed by glue. Of course, the flexible circuit board 120 and the pressing plate 110 may be fixed by other fixing methods, as long as the flexible circuit board 120 and the pressing plate 110 can be fixedly connected, and the fixing method is not limited herein.
Wherein, the projection of the flexible circuit board 120 on the pressing plate 110 does not cover the alignment mark 112. That is, the flexible circuit board 120 does not block the alignment mark 112 on the pressing plate 110. This can clearly expose the alignment mark 112, and improve the visibility of the alignment mark 112 in the field of view, thereby improving the alignment accuracy.
On the basis of the foregoing embodiment, the alignment mechanism 100 further includes a pressing block 130 for pressing the flexible circuit board 120 against the pressing plate 110. The pressing block 130 is preferably plate-shaped so as to press the flexible circuit board 120 relatively flat. Specifically, the pressing block 130 is located above the flexible circuit board 120 and fixed on the flexible circuit board 120. For example, the fixing can be performed by a positioning pin, and the bonding fixing can also be performed by glue. Of course, the flexible circuit board 120 and the pressing block 130 may also be fixed by other fixing methods, as long as the flexible circuit board 120 and the pressing block 130 can be fixedly connected, and the fixing method is not limited herein.
In addition, the size of the pressing block 130 is smaller than that of the flexible circuit board 120, so that the use of important elements on the flexible circuit board 120 is prevented from being influenced. The shape of the press 130 is not limited to the shape shown in fig. 1 or fig. 2 in the present embodiment, and may be any other shape.
In addition to the foregoing embodiments, the projection of the pressing block 130 on the pressing plate 110 does not cover the alignment mark 112. Therefore, the pressing block 130 can be prevented from shielding the alignment mark 112 to influence the alignment precision.
On the basis of the foregoing embodiment, the alignment mark 112 is located within an area enclosed by an outer contour line of a projection of the flexible circuit board 120 on the platen 110, and the flexible circuit board 120 is provided with an alignment hole 122 for exposing the alignment mark 112. Therefore, the alignment mark 112 can be exposed from the alignment hole 122, so that the flexible circuit board 120 can be prevented from shielding the alignment mark 112, the definition of the alignment mark in the visual field is improved, the alignment precision is improved, and the success rate of crimping the display screen body and the flexible circuit board can be improved.
Of course, the alignment mark 112 may also be partially exposed in the alignment hole 122, as long as the alignment mark 112 can be observed, which is not limited herein.
In the present embodiment, the opening of the alignment hole 122 is circular. It is understood that the opening shape of the alignment hole 122 is not limited thereto, as long as the alignment mark 112 on at least a portion of the pressing plate 110 can be exposed, and is not limited thereto. For example, the opening shape of the alignment holes 122 may also be regular shapes such as triangle, square, ellipse, etc., or any other irregular shapes.
On the basis of the foregoing embodiment, the flexible circuit board 120 includes a plurality of metal traces (pins) 124, and the number of the alignment marks 112 is a double number and is symmetrically disposed on two sides of the plurality of metal traces 124. This can align from both sides of a plurality of metal traces 124, thereby ensuring the accuracy of the alignment.
Specifically, in the present embodiment, the number of the alignment marks 112 is two, and the two alignment marks 112 are symmetrically disposed on two sides of the metal traces 124, as shown in fig. 1 and fig. 2. This can align from both sides of a plurality of metal traces 124, thereby ensuring the accuracy of the alignment. Of course, the number of the alignment marks can be any other double number or single number. In the alignment mechanism of the present invention, the number of alignment marks is at least one.
On the basis of the foregoing embodiment, the alignment mark 112 is a groove, and the groove is filled with a reflective material. The light reflecting material may be, for example, fluorescent paint. And glue can be coated on the reflecting material to realize packaging. Because the grooves are filled with the reflective material, the contrast between the alignment marks 112 of the pressing plate 110 and the alignment marks on the display screen body in the visual field can be increased.
On the basis of the previous embodiment, the depth of the groove is 0.2 mm-0.5 mm; and/or the opening of the groove is in the shape of a cross, a circle or a polygon. Of course, the depth of the groove and the opening shape of the groove are not limited to these, and may be set according to actual conditions. For example, the opening shape of the groove may be any other regular or irregular shape.
Of course, in the alignment mechanism of the display panel and the flexible circuit board of the present invention, the form of the alignment mark is not limited thereto. For example, the grooves may not be filled with a reflective material. In addition, the alignment mark may be any pattern drawn on the surface of the pressing plate 110 by a painting brush, and the color of the pattern is preferably black or other relatively dark colors, so that the definition of the alignment mark in the visual field can be improved.
In another embodiment, the alignment marks 112 are protrusions coated with a reflective material. This embodiment can also increase the contrast between the alignment mark 112 of the pressing plate 110 and the alignment mark on the display screen in the field of view.
Of course, in the present embodiment, the thickness of the projection and the cross-sectional shape of the projection are not limited and may be set according to actual circumstances. For example, the cross-sectional shape of the projections may be any shape, regular or irregular. For example, a cross, a circle, a polygon, or the like. In addition, the reflective material may not be coated on the protrusions.
In the alignment mechanism for the display panel and the flexible circuit board of the present invention, the position of the alignment mark on the pressing plate is not limited to this. The alignment mark can also be positioned at any position of the pressing plate, and the alignment can be realized only by enabling the pressing plate and the flexible circuit board to meet the use precision requirement.
Referring to fig. 3, the aligning mechanism 200 for a display panel and a flexible circuit board according to another embodiment of the present invention includes a pressing plate 210, a flexible circuit board 220 and a pressing block 230. Wherein, the pressing plate 210 has an alignment mark 212.
In the present embodiment, the alignment mark 212 is located outside the region surrounded by the outline of the projection of the flexible circuit board 220 on the platen 210. This eliminates the need for providing an opening in the flexible circuit board 220 for exposing the alignment mark 212.
By applying the alignment mechanism of the display screen body and the flexible circuit board, the alignment mark is arranged on the pressing plate, and the projection of the flexible circuit board on the pressing plate can not cover the alignment mark. The display screen has the advantages that the definition of the alignment mark in the visual field is integrally improved, so that the alignment precision is improved, the crimping success rate of the display screen body and the flexible circuit board can be improved, and the display screen is favorable for application.
The manufacturing method of the alignment mark on the pressing plate comprises the following steps:
and S10, fixing the flexible circuit board and the pressure plate through the positioning pin.
And S20, bonding the flexible circuit board and the pressing plate by glue to be flat, and fixing the relative positions of the flexible circuit board and the pressing plate.
S30, platen reference edge X, Y (as shown in fig. 1), and the relative position between the metal traces of the flexible circuit board are calibrated (which can be done with optical measurement equipment with an accuracy of ± 0.001 mm).
And S40, carrying out alignment marking on the calibrated pressing plate containing the flexible circuit board (which can be manufactured by using a precision engraving machine and using X, Y as a reference), wherein the precision requirement is +/-0.01 mm.
By the manufacturing method, the precision of the alignment mark on the manufactured pressing plate is +/-0.011 mm, and the precision of the alignment mark on the flexible circuit board is +/-0.05 mm. The precision of the alignment mark manufactured by the pressing plate is higher than that of the alignment mark on the flexible circuit board, so that the flexible circuit board manufactured by the pressing plate meets the requirement on use precision.
The alignment system of the display screen body and the flexible circuit board comprises the display screen body and the alignment mechanism of the display screen body and the flexible circuit board.
Wherein, the display screen body is provided with a screen body contraposition mark.
Wherein, the counterpoint mark of counterpoint mechanism and screen body counterpoint mark correspond the setting. And aligning the alignment mark of the display screen body with the alignment mark of the alignment mechanism, and then realizing the compression joint of the alignment mark and the alignment mark.
The invention also provides a display, which can be a product or a component with a display function such as a mobile phone, a flat panel, a television, a palm computer, an ipod, a digital camera, a navigator and the like, and the display comprises the display screen body provided by the invention.
By applying the alignment system of the display screen body and the flexible circuit board, the alignment mark is arranged on the pressing plate, and the projection of the flexible circuit board on the pressing plate can not cover the alignment mark. The display screen has the advantages that the definition of the alignment mark in the visual field is integrally improved, so that the alignment precision is improved, the crimping success rate of the display screen body and the flexible circuit board can be improved, and the display screen is favorable for application.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a counterpoint mechanism of display screen body and flexible circuit board which characterized in that includes:
the pressing plate is used for pressing and connecting the display screen body and the flexible circuit board, and alignment marks are arranged on the pressing plate; and
the flexible circuit board is fixed on the pressing plate and is positioned on one side of the surface of the pressing plate, which is provided with the alignment mark;
the projection of the flexible circuit board on the pressing plate does not cover the alignment mark;
the flexible circuit board comprises a plurality of metal wires, and the projection of the pressing plate on the flexible circuit board covers the metal wires.
2. The alignment mechanism for a display screen body and a flexible circuit board according to claim 1, further comprising a pressing block for pressing the flexible circuit board against the pressing plate.
3. The mechanism of claim 2, wherein the projection of the pressing block on the pressing plate does not cover the alignment mark.
4. The mechanism of claim 1, wherein the alignment mark is located in an area defined by an outer contour line of a projection of the flexible circuit board on the pressing plate, and the flexible circuit board is provided with an alignment hole for exposing the alignment mark.
5. The mechanism of claim 1, wherein the alignment mark is located outside an area defined by an outer contour line of a projection of the flexible circuit board on the pressing plate.
6. The mechanism of claim 1, wherein the alignment marks are symmetrically disposed on two sides of the metal traces.
7. The mechanism of claim 1, wherein the alignment mark is a groove, and the groove is filled with a reflective material.
8. The aligning mechanism of claim 7, wherein the depth of the groove is 0.2mm to 0.5 mm; and/or the opening shape of the groove is circular or polygonal.
9. The mechanism of claim 1, wherein the alignment mark is a protrusion, and the protrusion is coated with a reflective material.
10. The utility model provides a counterpoint system of display screen body and flexible circuit board which characterized in that includes:
the display screen body is provided with a screen body alignment mark; and
the alignment mechanism for the display screen body and the flexible circuit board of any one of claims 1 to 9, wherein an alignment mark of the alignment mechanism is arranged corresponding to the alignment mark of the screen body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104319.1A CN109618501B (en) | 2019-02-01 | 2019-02-01 | Display screen body and flexible circuit board's counterpoint mechanism and counterpoint system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104319.1A CN109618501B (en) | 2019-02-01 | 2019-02-01 | Display screen body and flexible circuit board's counterpoint mechanism and counterpoint system |
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| Publication Number | Publication Date |
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| CN109618501A CN109618501A (en) | 2019-04-12 |
| CN109618501B true CN109618501B (en) | 2020-05-19 |
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| CN201910104319.1A Active CN109618501B (en) | 2019-02-01 | 2019-02-01 | Display screen body and flexible circuit board's counterpoint mechanism and counterpoint system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002329941A (en) * | 2001-04-27 | 2002-11-15 | Matsushita Electric Ind Co Ltd | Connection structure of wiring board and connection structure of liquid crystal display panel |
| CN101718919A (en) * | 2009-11-05 | 2010-06-02 | 友达光电（苏州）有限公司 | Display module and contraposition device thereof |
| CN104411089A (en) * | 2014-11-20 | 2015-03-11 | 上海天马微电子有限公司 | Flexible printed circuit board, pressing method of flexible printed circuit board and display device |
| CN204557430U (en) * | 2015-03-26 | 2015-08-12 | 昆山龙腾光电有限公司 | Touch control display apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5273330B2 (en) * | 2006-08-04 | 2013-08-28 | 株式会社ジャパンディスプレイ | Display device |
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2019
- 2019-02-01 CN CN201910104319.1A patent/CN109618501B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002329941A (en) * | 2001-04-27 | 2002-11-15 | Matsushita Electric Ind Co Ltd | Connection structure of wiring board and connection structure of liquid crystal display panel |
| CN101718919A (en) * | 2009-11-05 | 2010-06-02 | 友达光电（苏州）有限公司 | Display module and contraposition device thereof |
| CN104411089A (en) * | 2014-11-20 | 2015-03-11 | 上海天马微电子有限公司 | Flexible printed circuit board, pressing method of flexible printed circuit board and display device |
| CN204557430U (en) * | 2015-03-26 | 2015-08-12 | 昆山龙腾光电有限公司 | Touch control display apparatus |
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| CN109618501A (en) | 2019-04-12 |
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Denomination of invention: Alignment mechanism and alignment system between display panel and flexible circuit board Effective date of registration: 20200819 Granted publication date: 20200519 Pledgee: AVIC International Leasing Co., Ltd Pledgor: Yungu (Gu'an) Technology Co.,Ltd. Registration number: Y2020320010118 |
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