LOGO structure on surface of electronic product shell

By layering a primer layer, an ink layer, and a UV layer onto the casing of electronic products, the problems of poor wear resistance and high cost of traditional logos and etching processes are solved, achieving efficient and durable logo production and enhancing the product's technological feel and brand image.

CN224265268UActive Publication Date: 2026-05-19KUNSHAN ZAICHEN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN ZAICHEN ELECTRONIC TECH CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional methods for making logos for electronic products have poor wear resistance, and etching processes are costly and difficult to control in terms of consistency, which affects the product's aesthetics and brand recognition.

Method used

It adopts a multi-layer structure consisting of a primer layer, an ink layer, and a UV layer. The primer layer enhances adhesion, the ink layer presents the logo pattern, and the UV layer serves as a protective layer with good wear resistance and microstructure to control light reflection. The total thickness is between 0.01mm and 0.04mm.

Benefits of technology

It improves the lifespan and visual consistency of the logo, reduces production costs and time, and enhances brand recognition and user trust.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a LOGO structure on the surface of an electronic product shell, which comprises a primer layer, an ink layer and a UV (ultraviolet) layer which are sequentially overlapped from bottom to top, and the outer surface of the UV layer is provided with a microstructure. The primer layer can enhance the adhesive force with the surface of the shell, and provides a stable basis for a subsequent coating; the ink layer is responsible for presenting a LOGO pattern; and due to the design of the microstructure on the outer surface of the UV layer, the light reflection and refraction effects can be accurately controlled, so that the unique texture and visual effect are presented, and the science and technology feeling and the advanced feeling of the product are highlighted. The total thickness of the LOGO structure is less than 0.04 mm, and the LOGO structure has no obvious segment difference feeling relative to the surface of the shell, so that the use touch feeling is not influenced. The process of the coating technology is relatively simple, complex etching steps and long-time processing procedures are not needed, rapid coating and curing can be achieved, the production period is shortened, the production efficiency is improved, large-scale production is facilitated, and the rapid supply requirement of the market for electronic products is met.
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Description

Technical Field

[0001] This utility model relates to the field of electronic product logo manufacturing technology, specifically to the logo structure on the surface of electronic product casings. Background Technology

[0002] To enhance product recognition, electronic product casings are often designed with personalized visual logos. Traditional, simply printed logos are prone to wear and tear over time and cannot meet the increasingly sophisticated needs of users.

[0003] Some designs involve creating grooves in the casing, printing the logo onto the PET substrate, and then bonding the PET substrate to the grooves using adhesive. Alternatively, an electroformed logo can be used and then bonded to the grooves with adhesive. This method requires cutting grooves in the casing, increasing production costs, and the bonding process can easily create gaps, affecting the aesthetics.

[0004] Currently, some laptop brands use metal etching for their logos on the metal casing, seamlessly integrating the logo with the body material. The metallic sheen creates a subtle yet sophisticated look, highlighting a sense of technology and premium quality. However, metal etching is a costly process. Furthermore, because the microstructures created during etching are difficult to control precisely, maintaining overall logo consistency is challenging, leading to variations in visual appearance between different batches of products. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a LOGO structure on the surface of electronic product casing.

[0006] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is: a LOGO structure on the surface of an electronic product casing, comprising a primer layer, an ink layer, and a UV layer stacked sequentially from bottom to top;

[0007] The primer layer is applied to the surface of the electronic product casing;

[0008] The ink layer is coated on the outer surface of the primer layer, and the outline of the ink layer is consistent with the outline of the logo.

[0009] The UV layer is coated on the outer surface of the ink layer, and the outer surface of the UV layer has a microstructure.

[0010] The total thickness of the primer layer, ink layer and UV layer is 0.01mm-0.04mm.

[0011] This utility model's logo structure forms a multi-layered protective system through the superposition of a primer layer, an ink layer, and a UV layer. The primer layer enhances adhesion to the shell surface, providing a stable foundation for subsequent coatings; the ink layer is responsible for presenting the logo pattern; and the UV layer, as a protective layer, effectively resists wear and scratches during daily use due to its excellent abrasion resistance and scratch resistance, greatly extending the logo's lifespan and meeting users' needs for product durability. The design of the microstructure on the outer surface of the UV layer allows for precise control of light reflection and refraction effects, resulting in a unique texture and visual effect that highlights the product's technological and premium feel. The total thickness of the logo structure is less than 0.04mm, with no noticeable difference in thickness compared to the shell surface, thus not affecting the tactile experience. Furthermore, the microstructure on the outer surface of the UV layer is formed by pressing a precision-manufactured template and curing it under ultraviolet light, ensuring consistency in the manufacturing process of logos across different batches of products. This precise control of the logo's visual effect enhances the overall quality image of the product, strengthening brand recognition and user trust. The coating process is relatively simple, requiring no complex etching steps or lengthy processing time. It enables rapid coating and curing, shortens the production cycle, improves production efficiency, facilitates large-scale production, and meets the market's demand for rapid supply of electronic products.

[0012] Furthermore, the thickness of the primer layer is 3μm to 5μm.

[0013] By adopting the above-mentioned preferred scheme, the reasonable thickness of the primer layer can not only form a stable bond with the metal surface through intermolecular forces, but also provide a smooth substrate for the ink layer.

[0014] Furthermore, the ink layer is made of metallic ink or matte ink.

[0015] Using the preferred solutions described above, metallic inks can achieve a high-gloss reflective effect reminiscent of anodized metal, aligning with the technologically advanced positioning of high-end models. Matte inks, on the other hand, create a low-key and understated texture, matching the minimalist style of business models.

[0016] Furthermore, the microstructure on the outer surface of the UV layer includes regularly arranged ridges, pits, or prism structures.

[0017] By adopting the above-mentioned preferred solution, under different light sources (such as natural light and LED lights), the microstructure can make the logo present a three-dimensional effect with changes in light and shadow, avoiding the flat and monotonous feeling of traditional printed logos.

[0018] Furthermore, the depth of the microstructure is 1 μm to 5 μm.

[0019] By adopting the above-mentioned preferred solution, both the brightness of the metallic texture and the wear resistance life are guaranteed.

[0020] Furthermore, the outline of the primer layer overlaps with the outline of the ink layer;

[0021] Alternatively, the contour of the primer layer extends beyond the contour of the ink layer by less than 0.2 mm.

[0022] Furthermore, the outline of the UV layer overlaps with the outline of the ink layer;

[0023] Alternatively, the UV layer's outline extends beyond the ink layer's outline by less than 0.2 mm.

[0024] Using the above-mentioned preferred scheme, the UV layer can form an edge-binding structure by extending 0.2mm beyond the ink layer. When the edge of the logo is scratched, the UV layer will be worn before the ink layer.

[0025] Furthermore, the casing of electronic products is made of metal, plastic, or glass.

[0026] This utility model's logo structure can be manufactured on the surface of various common materials, making it widely applicable. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0029] Figure 2 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0030] The numbers and letters in the diagram represent the names of the corresponding components:

[0031] 10-Shell; 20-LOGO structure; 21-Primer layer; 22-Ink layer; 23-UV layer; 231-Microstructure. Detailed Implementation

[0032] 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.

[0033] like Figure 1 , Figure 2 As shown, a logo structure 20 on the surface of an electronic product casing 10 includes a primer layer 21, an ink layer 22, and a UV layer 23 stacked sequentially from bottom to top.

[0034] Primer layer 21 is applied to the surface of electronic product housing 10;

[0035] Ink layer 22 is coated on the outer surface of primer layer 21, and the outline of ink layer 22 is consistent with the outline of LOGO.

[0036] UV layer 23 is coated on the outer surface of ink layer 22, and the outer surface of UV layer 23 has microstructure 231.

[0037] The total thickness of the primer layer 21, ink layer 22 and UV layer 23 is 0.01mm-0.04mm.

[0038] The beneficial effects of adopting the above technical solution are as follows: The logo structure, through the superposition of a primer layer, an ink layer, and a UV layer, forms a multi-layered protective system. The primer layer enhances adhesion to the shell surface, providing a stable foundation for subsequent coatings; the ink layer is responsible for presenting the logo pattern; and the UV layer, as a protective layer, effectively resists wear and scratches during daily use due to its excellent wear resistance and scratch resistance, greatly extending the lifespan of the logo and meeting users' needs for product durability. The design of the microstructure on the outer surface of the UV layer allows for precise control of light reflection and refraction effects, resulting in a unique texture and visual effect that highlights the product's technological and premium feel. The total thickness of the logo structure is less than 0.04mm, with no obvious step difference relative to the shell surface, thus not affecting the tactile experience. Simultaneously, the microstructure on the outer surface of the UV layer is formed by pressing a precision-manufactured template and curing it under ultraviolet light, ensuring the consistency of the manufacturing process for logos across different batches of products. This allows for precise control of the logo's visual effect, enhancing the overall quality image of the product and strengthening brand recognition and user trust. The coating process is relatively simple, requiring no complex etching steps or lengthy processing time. It enables rapid coating and curing, shortens the production cycle, improves production efficiency, facilitates large-scale production, and meets the market's demand for rapid supply of electronic products.

[0039] In some other embodiments of this utility model, the electronic product casing can be a metal casing, a plastic casing, or a glass casing, etc. The logo structure of this utility model has wide applicability.

[0040] In some other embodiments of this invention, the thickness of the primer layer 21 is 3μm to 5μm. The beneficial effects of adopting the above technical solution are: a reasonable primer layer thickness can form a stable bond with the metal surface through intermolecular forces (such as chemical bonds and van der Waals forces), and can also provide a smooth substrate for the ink layer.

[0041] In some other embodiments of this invention, the ink layer 22 is made of metallic ink or matte ink. The advantages of using the above technical solutions are: metallic ink can present the high-gloss reflective effect of anodized metal, matching the technological positioning of high-end models; matte ink can create a low-key and understated texture, matching the minimalist style of business models.

[0042] In some other embodiments of this invention, the microstructure 231 on the outer surface of the UV layer 23 includes regularly arranged ridges, pits, or prism structures. The beneficial effect of adopting the above technical solution is that under different light sources (such as natural light and LED lights), the microstructure can make the logo exhibit a three-dimensional effect with varying brightness and darkness, avoiding the flat and monotonous feel of traditional printed logos.

[0043] In some other embodiments of this invention, the depth of the microstructure 231 is 1μm to 5μm. The beneficial effects of adopting the above technical solution are: it ensures both the brightness of the metallic texture and its wear-resistant lifespan.

[0044] In some other embodiments of the present invention, the outline of the primer layer 21 overlaps with the outline of the ink layer 22; or, the outline of the primer layer 21 extends beyond the outline of the ink layer 22 by less than 0.2 mm.

[0045] The outline of UV layer 23 overlaps with the outline of ink layer 22; or, the outline of UV layer 23 extends beyond the outline of ink layer 22 by less than 0.2 mm.

[0046] The beneficial effects of adopting the above technical solution are: the UV layer can form an edge-binding structure by extending 0.2mm beyond the ink layer, so that when the edge of the logo is scratched, the UV layer will be worn before the ink layer.

[0047] The following describes the manufacturing steps based on one implementation method:

[0048] Step 1, Primer coating: Make a mask with a perforated hole that matches the shape of the logo area, attach the mask to the surface of the shell, and use a spraying process. The primer is an acrylic modified epoxy resin with strong adhesion. Spray the primer evenly on the surface of the shell. After spraying, put the shell into a drying oven to bake and allow the primer layer to fully cure.

[0049] Step 2, Ink Layer Printing: Using screen printing technology, a corresponding screen printing plate is made according to the logo design pattern. The metallic ink is poured onto the screen printing plate, and a squeegee is used to scrape the ink with appropriate pressure and speed, so that the ink is transferred through the mesh of the screen printing plate to the surface of the primer layer, forming an ink layer consistent with the outline of the logo. After printing, the shell is left to stand at room temperature to allow the ink to dry, and the mask is removed.

[0050] Step 3, UV layer fabrication: A precision template with regularly arranged raised ridges and microstructures is fabricated. The precision template has a light-transmitting part that matches the outline of the logo. The precision template is then attached to the surface of the shell after the ink layer has been printed. A certain space for UV material filling is reserved between the template and the shell. The UV material is selected as light-cured polyurethane acrylate. Then, the UV adhesive is filled by dripping or spraying to ensure that the UV material completely covers the ink layer and fills the gap between the template and the ink layer. Next, the UV material is cured using a UV curing device, so that the UV material in the area below the light-transmitting part of the template that matches the outline of the logo is quickly cured to form a UV layer with microstructure. Finally, the template is removed, and the uncured UV adhesive around the outline of the logo is washed away, and the logo structure of this utility model is finally obtained on the surface of the shell.

[0051] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A LOGO structure on a surface of an electronic product case, characterized in that, It includes a primer layer, an ink layer, and a UV layer, which are stacked sequentially from bottom to top; The primer layer is applied to the surface of the electronic product casing; The ink layer is coated on the outer surface of the primer layer, and the outline of the ink layer is consistent with the outline of the logo. The UV layer is coated on the outer surface of the ink layer, and the outer surface of the UV layer has a microstructure. The total thickness of the primer layer, ink layer and UV layer is 0.01mm-0.04mm.

2. The LOGO structure of the electronic product shell surface according to claim 1, characterized in that, The thickness of the primer layer is 3μm to 5μm.

3. The LOGO structure of the electronic product shell surface according to claim 1, characterized in that, The ink layer is made of metallic ink or matte ink.

4. The LOGO structure of the electronic product case surface according to claim 1, wherein, The microstructure on the outer surface of the UV layer includes regularly arranged ridges, pits, or prism structures.

5. The LOGO structure of the electronic product shell surface according to claim 4, characterized in that, The depth of the microstructure is 1 μm to 5 μm.

6. The LOGO structure on the surface of the electronic product casing according to claim 1, characterized in that, The outline of the primer layer overlaps with the outline of the ink layer; Alternatively, the contour of the primer layer extends beyond the contour of the ink layer by less than 0.2 mm.

7. The LOGO structure of the electronic product case surface according to claim 1, wherein, The outline of the UV layer overlaps with the outline of the ink layer; Alternatively, the UV layer's outline extends beyond the ink layer's outline by less than 0.2 mm.

8. The LOGO structure of the electronic product case surface according to claim 1, wherein, The casing of electronic products is made of metal, plastic, or glass.