CN111288369A - CSP LED light source processing technology for intelligent surface automobile interior trim touch panel - Google Patents
CSP LED light source processing technology for intelligent surface automobile interior trim touch panel Download PDFInfo
- Publication number
- CN111288369A CN111288369A CN202010123231.7A CN202010123231A CN111288369A CN 111288369 A CN111288369 A CN 111288369A CN 202010123231 A CN202010123231 A CN 202010123231A CN 111288369 A CN111288369 A CN 111288369A
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- CN
- China
- Prior art keywords
- led
- circuit board
- light source
- injection molding
- touch panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2106/00—Interior vehicle lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses a CSP LED light source processing technology of an intelligent surface automobile interior trim touch panel, which comprises the following steps: the flexible circuit board module consists of an LED chip, a touch IC, an electronic material and a flexible circuit board, and the LED chip, the touch IC and the electronic material are all welded on the surface of the flexible circuit board in an inverted mode; performing in-mold injection molding on plastic; an LED protective film material; the invention utilizes the five-side light emitting characteristic of the flip LED chip and white solder resist ink on the flexible circuit board to reflect the light emitted by the LED point light source on the surface of the substrate, and adds high light diffusibility powder into the LED protective film material and the in-mold injection molding plastic, so that the plastic has the characteristics of high light transmission, high haze and the like, effectively converts the LED point light source into a uniform surface light source, can achieve the effect of uniform light emission within the depth of an automotive interior part within 3mm through material design and type selection, and does not need to additionally assemble a light emitting module and a light diffusion plate.
Description
Technical Field
The invention relates to the technical field of automotive interior touch panels, in particular to a CSPLED light source diffusion processing technology of an intelligent surface automotive interior touch panel.
Background
Automobile interior mainly refers to the automobile product that the inside repacking of car used, the square face that relates to the car inside, for example car steering wheel cover, car cushion, car callus on the sole, car perfume, car pendant, interior goods of furniture for display rather than for use, containing box etc. all are automobile interior product, because this part automobile parts have certain decorative, so general translation in the industry all is called "automobile interior", but from english "Interiors", we can know that this part spare part not only has the decorative effect, the functionality, the security that they related to and engineering attribute are very abundant.
In recent years, a solution of integrating a light and shadow effect with an interior material using an LED has been developed in order to produce an interior material for an automobile, which has been conventionally prepared by using a surface decoration technique (including painting, plating, in-mold decoration (IMD), water transfer, and real wood/aluminum decoration (…) in combination with a plastic molding technique); in the existing scheme, the traditional forward packaged LED is generally used for SMT surface mounting on a PCB, and the formed module is assembled with an automotive interior part through a structural part.
However, in the case of manufacturing an automobile interior part by using the above-described assembly method, the light-equalizing treatment of the LED point light source is generally performed by using the light-diffusing plate, which often involves the defects of the heat dissipation problem of the LED, the need to newly form a mold for assembling the part, and the large volume, which is disadvantageous in designing and modifying the entire automobile interior part.
Disclosure of Invention
The invention aims to provide a CSP LED light source processing technology of an intelligent surface automobile interior trim touch panel, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: intelligent surface automotive interior touch panel CSP LED light source processing technology includes:
the flexible circuit board module consists of an LED chip, a touch IC, an electronic material and a flexible circuit board, and the LED chip, the touch IC and the electronic material are all welded on the surface of the flexible circuit board in an inverted mode;
performing in-mold injection molding on plastic;
an LED protective film material;
the LED protective film is glued to the upper end of the flexible circuit board module, and the in-mold injection molding plastic is located at the upper end of the LED protective film.
Preferably, the method further comprises the following steps:
and the decorative film is processed on the surface of the upper end of the in-mold injection molding plastic by an in-mold injection molding surface decorating technology.
Preferably, the LED protective film material is made of a modified silica gel material.
Preferably, the in-mold injection molding plastic is made of a modified plastic material.
Preferably, the in-mold injection molding plastic and the LED protective film are respectively added with a plurality of light diffusion materials with different particle size ratios in a certain proportion.
Preferably, the solder mask ink of the flexible printed circuit used by the flexible printed circuit module is white solder mask ink.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention utilizes the five-side light emitting characteristic of the flip LED chip and white solder resist ink on the flexible circuit board to reflect light emitted by the LED point light source on the surface of the substrate, and adds high light diffusibility powder into the LED protective film material and the in-mold injection molding plastic, so that the plastic has the characteristics of high light transmittance, high haze and the like, and effectively converts the LED point light source into a uniform surface light source, so that the automobile interior trim touch panel has uniform light emitting characteristic, and simultaneously can achieve uniform light emitting effect within the depth of an automobile interior trim within 3mm through material design and type selection without additionally assembling a light emitting module and a light diffusion plate.
Drawings
FIG. 1 is a schematic view of a layered structure of the present invention;
FIG. 2 is a schematic diagram of a flexible printed circuit module according to the present invention.
In the figure: 1-a flexible circuit board module; 2-injection molding plastics in a mould; 3-decorating the film; 4-LED protective film material; 5-flip-chip LED chip; 6-touch IC; 7-electronic material; 8-flexible circuit board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1-2, the present invention provides a technical solution: intelligent surface automotive interior touch panel CSP LED light source processing technology includes: the flexible circuit board module 1, the in-mold injection molding plastic 2 and the LED protective film material 4.
The flexible printed circuit module 1 is composed of an LED chip 5, a touch IC6, an electronic material 7 and a flexible printed circuit 8, and the LED chip 5, the touch IC6 and the electronic material 7 are all flip-chip bonded to the surface of the flexible printed circuit 8.
The LED protective film material 4 is glued to the upper end of the flexible circuit board module 1, and the in-mold injection molding plastic 2 is located at the upper end of the LED protective film material 4.
Wherein, the face plate adopts a flip LED chip 5 to carry out bare die mounting on a flexible circuit board 8.
Wherein, still include: and the decorative film 3 is processed on the upper end surface of the injection molding plastic 2 in the mold by an in-mold injection molding surface decoration technology.
Wherein, still include: and the decorative film 3 is processed on the upper end surface of the in-mold injection molding plastic 2 by an in-mold injection molding surface decoration technology.
The decorative film 3 can decorate the touch panel.
The LED protective film material 4 is made of a modified silica gel material.
Wherein the in-mold injection molding plastic 2 is made of a modified plastic material.
The in-mold injection molding plastic 2 and the LED protective film material 4 are respectively added with a plurality of light diffusion materials with different particle size ratios according to a certain proportion.
Wherein, the solder resist ink of the flexible circuit board 8 used by the flexible circuit board module 1 is white solder resist ink.
Wherein the light emitted from the LED point light source is reflected by the substrate surface.
By combining the above embodiments, the five-sided light emitting characteristic of the flip-chip LED chip 5 is utilized, and the white solder resist ink on the flexible circuit board module 1 is matched to reflect the light emitted by the LED point light source on the substrate surface, and the high light diffusibility powder is added to the LED protective film material 4 and the in-mold injection molding plastic 2, so that the plastic has the characteristics of high light transmittance and high haze, and the point light source of the LED is effectively converted into a uniform surface light source, so that the touch panel for automobile interior decoration has the uniform light emitting characteristic, and meanwhile, through material design and type selection, the uniform light emitting effect can be achieved within the depth of the automobile interior decoration within 3mm, and the light emitting module and the light diffusion plate do not need to be additionally assembled.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus may be implemented in other ways. The welding, decorating, injection moulding or gluing to each other shown or discussed can be assisted by means of a device.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. Intelligence surface automotive interior touch panel CSP LED light source processing technology, its characterized in that includes:
the flexible printed circuit board module (1), the flexible printed circuit board module (1) is composed of an LED chip (5), a touch IC (6), an electronic material (7) and a flexible printed circuit board (8), and the LED chip (5), the touch IC (6) and the electronic material (7) are all welded on the surface of the flexible printed circuit board (8) in an inverted mode;
injection molding plastic (2) in the mold;
an LED protective film material (4);
the LED flexible circuit board module is characterized in that the LED protective film (4) is glued to the upper end of the flexible circuit board module (1), and the in-mold injection molding plastic (2) is located at the upper end of the LED protective film (4).
2. The CSP LED light source processing technology for a smart-surface automotive interior touch panel according to claim 1, further comprising:
the decorative film (3) is processed on the upper end surface of the injection molding plastic (2) in the mold by an in-mold injection molding surface decoration technology.
3. The CSP LED light source processing technology for the intelligent surface automotive interior touch panel according to claim 1, wherein: the LED protective film material (4) is made of a modified silica gel material.
4. The CSP LED light source processing technology for the intelligent surface automotive interior touch panel according to claim 1, wherein: the in-mold injection molding plastic (2) is made of a modified plastic material.
5. The CSP LED light source processing technology for the intelligent surface automotive interior touch panel according to claim 1, wherein: the in-mold injection molding plastic (2) and the LED protective film material (4) are respectively added with a plurality of light diffusion materials with different particle size ratios in a certain proportion.
6. The CSP LED light source processing technology for the intelligent surface automotive interior touch panel according to claim 1, wherein: the solder resist ink of the flexible circuit board (8) used by the flexible circuit board module (1) adopts white solder resist ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123231.7A CN111288369A (en) | 2020-02-27 | 2020-02-27 | CSP LED light source processing technology for intelligent surface automobile interior trim touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123231.7A CN111288369A (en) | 2020-02-27 | 2020-02-27 | CSP LED light source processing technology for intelligent surface automobile interior trim touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111288369A true CN111288369A (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010123231.7A Pending CN111288369A (en) | 2020-02-27 | 2020-02-27 | CSP LED light source processing technology for intelligent surface automobile interior trim touch panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN111288369A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092422A (en) * | 2020-09-11 | 2020-12-18 | 东莞广华汽车饰件科技有限公司 | Manufacturing method of automobile luminous ornament with flexible plate |
| CN114327117A (en) * | 2020-10-09 | 2022-04-12 | 上海良信智能电工有限公司 | Design method of uniform light scattering touch structure with indication |
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| CN114327117A (en) * | 2020-10-09 | 2022-04-12 | 上海良信智能电工有限公司 | Design method of uniform light scattering touch structure with indication |
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