Flexible energizable light-emitting structure

Abstract

The utility model belongs to the technical field of printing electronics, and particularly relates to a flexible electrifiable light-emitting structure which comprises a light-emitting structure body. The light-emitting structure body comprises a base material layer, a pattern layer printed on the top of the base material layer in a silk-screen mode, a light-emitting layer printed on the top of the pattern layer in a silk-screen mode, insulation protection glue packaged on the top of the light-emitting layer and an outer protection layer packaged on the top of the insulation protection glue, and a flexible flat cable is arranged at the end of the pattern layer. According to the utility model, screen printing one-step forming is adopted, the processing is convenient, the processing cost and the part cost are relatively low, and the safety and the service life of the light-emitting structure main body are further improved and prolonged through the packaged insulation protection glue and the outer protection layer.

Description

Technical Field

[0001] This utility model belongs to the field of printed electronics technology, specifically relating to a flexible, electrically conductive, light-emitting structure. Background Technology

[0002] Electroluminescence is the light-emitting phenomenon produced when a substance is excited by electrical energy under the influence of an external electric field.

[0003] Flexible electrically conductive light-emitting structures are an important component of the light-emitting laptop keyboard module. Currently, these are either printed keyboard circuits or circuits that are soldered or etched with copper, which results in relatively high material and processing costs.

[0004] To address the aforementioned issues, this application proposes a flexible, electrically conductive, light-emitting structure. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a flexible, electrically conductive, light-emitting structure that is convenient to use and easy to process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible, electrically conductive, light-emitting structure, comprising a light-emitting structure body, the light-emitting structure body comprising a substrate layer, a pattern layer screen-printed on top of the substrate layer, a light-emitting layer screen-printed on top of the pattern layer, an insulating protective adhesive encapsulated on top of the light-emitting layer, and an outer protective layer encapsulated on top of the insulating protective adhesive, wherein a flexible flat cable is provided at the end of the pattern layer.

[0007] As a preferred embodiment of this utility model, the substrate layer is one of PI, PU or PET.

[0008] As a preferred embodiment of this invention, the pattern layer is a silicone-type conductive silver paste.

[0009] As a preferred embodiment of this invention, the insulating protective adhesive is polyurethane.

[0010] As a preferred embodiment of this invention, the outer protective layer is an ePTFE membrane.

[0011] As a preferred technical solution of this utility model, it also includes:

[0012] The positioning frame, wherein the main body of the light-emitting structure is located inside the positioning frame, and a fixing foot is fixed at the end of the positioning frame, and a fixing hole is provided on the fixing foot;

[0013] A keyboard back frame is fixed to the top of the positioning frame and is used to limit the main body of the light-emitting structure from above.

[0014] As a preferred technical solution of this utility model, it also includes:

[0015] An elastic sheet is fixed to the top of the positioning frame, and a slot for the elastic sheet to pass through is provided at the end of the keyboard back frame.

[0016] A locking block is fixed to the top of the elastic sheet, and the top surface of the locking block is an inclined surface.

[0017] As a preferred embodiment of this utility model, a positioning groove is machined on the positioning frame for the flexible flat cable to pass through, and a chamfer is machined at the top of the positioning groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In this invention, screen printing is used for one-time molding, which is convenient to process and has low processing and component costs. Furthermore, the safety and service life of the light-emitting structure are further improved by the encapsulated insulating protective glue and outer protective layer.

[0020] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0025] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the diagram.

[0026] In the diagram: 1. Main body of the light-emitting structure; 11. Substrate layer; 12. Pattern layer; 121. Flexible ribbon cable; 13. Light-emitting layer; 14. Insulating protective adhesive; 15. Outer protective layer; 2. Positioning frame; 21. Fixing foot; 211. Fixing hole; 22. Positioning groove; 221. Beveled corner; 3. Keyboard back frame; 31. Card slot; 4. Elastic sheet; 41. Card block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-4 The present invention provides the following technical solution: a flexible, electrically conductive, light-emitting structure, comprising a light-emitting structure body 1.

[0029] Furthermore, by Figure 1 As shown, in this embodiment, the light-emitting structure body 1 includes a substrate layer 11, a pattern layer 12 screen-printed on top of the substrate layer 11, a light-emitting layer 13 screen-printed on top of the pattern layer 12, an insulating protective adhesive 14 encapsulated on top of the light-emitting layer 13, and an outer protective layer 15 encapsulated on top of the insulating protective adhesive 14. A flexible flat cable 121 is provided at the end of the pattern layer 12. With the above solution, this utility model adopts screen printing for one-time molding, which is convenient to process and has relatively low processing and component costs. Furthermore, the safety and service life of the light-emitting structure body 1 are further improved by the encapsulated insulating protective adhesive 14 and the outer protective layer 15.

[0030] It should be noted that the light-emitting layer 13 of this utility model is also formed by screen printing, which is only an exemplary solution of this utility model. The installation method of the light-emitting layer 13 needs to be designed according to the actual shape of the light-emitting layer 13. It can also be placed directly on the pattern layer 12. In this case, there should be a spacing of not less than 100 micrometers between two adjacent lines of the pattern layer 12. After the pattern layer 12 is cured, it will be firmly connected with the light-emitting layer 13. After the insulating protective glue 14 is encapsulated, it will further improve the stability of the connection between the pattern layer 12 and the light-emitting layer 13, and at the same time provide safety protection.

[0031] The flexible flat cable 121 is located at the end of the pattern layer 12 and extends out to the light-emitting layer 13, which can be connected to other circuits.

[0032] Optionally, by Figure 1 As shown in this embodiment, the substrate layer 11 is one of PI, PU or PET. PI is polyimide, PU is polyurethane, and PET is polyethylene terephthalate. For example, polyimide has good electrical insulation properties, good mechanical properties and chemical stability. In addition, thermoplastic polyimide TPI solves the problems of thermosetting PI being insoluble, infusible and difficult to process while maintaining good performance.

[0033] Optionally, by Figure 1As shown, in this embodiment, the pattern layer 12 is a silicone-type conductive silver paste, which has good tensile properties and conductivity, and is a preferred material for the pattern layer 12.

[0034] Optionally, by Figure 1 As shown in this embodiment, the insulating protective adhesive 14 is polyurethane, which has good main chain flexibility, is resistant to impact vibration and bending fatigue, has very high peel strength, and has extremely excellent low-temperature performance, making it stand out among existing adhesives.

[0035] Optionally, by Figure 1 As shown in this embodiment, the outer protective layer 15 is an ePTFE membrane, namely expanded polytetrafluoroethylene membrane, which has good waterproof and breathable properties, and its mechanical properties and chemical stability are good, which can play a good protective role for the light-emitting structure body 1.

[0036] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes: a positioning frame 2 and a keyboard back frame 3. The light-emitting structure body 1 is located inside the positioning frame 2. A fixing foot 21 is fixed at the end of the positioning frame 2, and a fixing hole 211 is provided on the fixing foot 21. The keyboard back frame 3 is fixed to the top of the positioning frame 2 to limit the light-emitting structure body 1 from above. With the above solution, when in use, the positioning frame 2 is fixed to the laptop shell with screws, the light-emitting structure body 1 is located inside the positioning frame 2, and the keyboard back frame 3 limits the light-emitting structure body 1 from above, further improving the stability and safety of the light-emitting structure body 1.

[0037] Preferably, by Figure 1 , Figure 2 and Figure 4 As shown, this embodiment also includes: an elastic sheet 4 and a locking block 41. The elastic sheet 4 is fixed to the top of the positioning frame 2. The end of the keyboard back frame 3 has a slot 31 through which the elastic sheet 4 passes. The locking block 41 is fixed to the top of the elastic sheet 4, and the top surface of the locking block 41 is inclined. With the above solution, when installing the keyboard back frame 3, the slot 31 is aligned with the locking block 41, and the keyboard back frame 3 is pressed down. The inclined surface of the locking block 41 is subjected to force, which generates a component force that causes the elastic sheet 4 to bend outward until the locking block 41 passes over the keyboard back frame 3. At this time, the elastic sheet 4 returns to its original state, and the locking block 41 forms a limit on the keyboard back frame 3, making installation convenient.

[0038] Preferably, by Figures 1-3 As shown in this embodiment, a positioning groove 22 for the flexible flat cable 121 to pass through is processed on the positioning frame 2, and a chamfer 221 is processed at the top of the positioning groove 22. With the above design, the positioning groove 22 is used to avoid the flexible flat cable 121, and the chamfer 221 has a guiding function, which makes it easy for the flexible flat cable 121 to be embedded in the positioning groove 22. When in use, the flexible flat cable 121 can be connected to other circuits.

[0039] Components not described in detail in this article are existing technologies.

[0040] The working principle and usage process of this utility model: The light-emitting structure body 1 of this utility model includes a substrate layer 11, a pattern layer 12 screen-printed on the top of the substrate layer 11, a light-emitting layer 13 screen-printed on the top of the pattern layer 12, an insulating protective adhesive 14 encapsulated on the top of the light-emitting layer 13, and an outer protective layer 15 encapsulated on the top of the insulating protective adhesive 14.

[0041] This utility model adopts screen printing for one-time molding, which is convenient to process and has low processing and component costs. Furthermore, the safety and service life of the light-emitting structure body 1 are further improved by the encapsulated insulating protective glue 14 and outer protective layer 15.

[0042] The positioning frame 2 and the keyboard back frame 3 further improve the stability and safety of the main body 1 of the light-emitting structure. The keyboard back frame 3 is connected to the laptop keyboard later, and the keyboard back frame 3 is installed by snap-fit, which is convenient for installation.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible, electrically conductive, light-emitting structure, comprising a light-emitting structure body (1), characterized in that: The light-emitting structure body (1) includes a substrate layer (11), a pattern layer (12) screen-printed on top of the substrate layer (11), a light-emitting layer (13) screen-printed on top of the pattern layer (12), an insulating protective adhesive (14) encapsulated on top of the light-emitting layer (13), and an outer protective layer (15) encapsulated on top of the insulating protective adhesive (14). A flexible flat cable (121) is provided at the end of the pattern layer (12). Positioning frame (2), the light-emitting structure body (1) is located inside the positioning frame (2), a fixing foot (21) is fixed at the end of the positioning frame (2), and a fixing hole (211) is provided on the fixing foot (21). Keyboard back frame (3), the keyboard back frame (3) is fixed to the top of the positioning frame (2) and is used to limit the light-emitting structure body (1) from above.

2. The flexible, electrically conductive, light-emitting structure according to claim 1, characterized in that: The substrate layer (11) is one of PI, PU or PET.

3. The flexible, electrically conductive, light-emitting structure according to claim 1, characterized in that: The pattern layer (12) is a silicone-type conductive silver paste.

4. The flexible, electrically conductive, light-emitting structure according to claim 1, characterized in that: The insulating protective adhesive (14) is polyurethane.

5. The flexible, electrically conductive, light-emitting structure according to claim 1, characterized in that: The outer protective layer (15) is an ePTFE membrane.

6. The flexible, electrically conductive, light-emitting structure according to claim 1, characterized in that: Also includes: Elastic sheet (4), the elastic sheet (4) is fixed to the top of the positioning frame (2), and has a slot (31) at the end of the keyboard back frame (3) for the elastic sheet (4) to pass through. A locking block (41) is fixed to the top of the elastic sheet (4), and the top surface of the locking block (41) is an inclined surface; A positioning groove (22) is machined on the positioning frame (2) for the flexible flat cable (121) to pass through, and a chamfer (221) is machined at the top of the positioning groove (22).

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