An in-character, hidden keycap
Patent Information
- Application Number
- CN202521419477.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-07-07
AI Technical Summary
将字符一体成型在壳体上,字符为塑胶材质,其虽然不容易出现磨损、消失的问题,但是,每种不同字符的键帽都需要开发相应治具,开发设计成本高,而且,壳体的外壳上需要设置与字符对应的凹槽,加工繁琐
[0011]The characters are laser-etched onto the outer surface of the inner shell and completely encased in a transparent outer shell. Fingers only contact the surface of the transparent shell, with no direct friction between the fingers and the characters, completely avoiding the blurring issues caused by finger friction and sweat corrosion common with traditional keycaps.
Smart Images

Figure CN224720747U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of keycap technology, specifically relating to a character-embedded keycap. Background Technology
[0002] Currently, most keycaps have their characters located on the top surface of the outer shell. However, after prolonged use, the characters are prone to wear and tear, causing them to become blurred or even disappear, thus reducing the user experience. Currently, some keycaps have their characters molded integrally onto the shell, such as the keycap disclosed in publication number CN107146727A, where the characters are located on the inner shell. While molding the characters integrally onto the shell, using plastic, reduces the likelihood of wear and disappearance, it requires developing corresponding jigs for each type of keycap with different characters, resulting in high development and design costs. Furthermore, the outer shell needs to have grooves corresponding to the characters, making manufacturing cumbersome. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a character-embedded keycap.
[0004] To achieve the above objectives, this utility model discloses a character-embedded keycap, comprising a transparent outer shell, a laser-absorbing inner shell, and characters. The transparent outer shell has an inner surface, and the laser-absorbing inner shell is formed onto the transparent outer shell using a two-color injection molding process. The laser-absorbing inner shell has an outer surface and an inner surface, with the outer surface completely obscuring the inner surface. The inner surface is provided with a light-shielding layer that completely obscures the inner surface. The inner surface is provided with a connecting post for connection with a keyboard's connecting shaft. The characters are formed on the outer surface of the inner shell using a laser etching process.
[0005] Furthermore, the thickness of the transparent outer shell is 0.8mm to 1mm, and the thickness of the laser-absorbing inner shell is 0.6mm to 0.8mm.
[0006] Furthermore, the entire laser-absorbing inner shell serves as the light-shielding layer.
[0007] Furthermore, the top surface of the transparent shell is an arc-shaped concave surface that is high on both sides and low in the middle.
[0008] Furthermore, the front side of the transparent outer shell is flat, and the characters are located on the front side of the outer surface of the inner shell.
[0009] Furthermore, the inner surface of the inner shell is provided with product markings.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] The characters are laser-etched onto the outer surface of the inner shell and completely encased in a transparent outer shell. Fingers only contact the surface of the transparent shell, with no direct friction between the fingers and the characters, completely avoiding the blurring issues caused by finger friction and sweat corrosion common with traditional keycaps.
[0012] The transparent outer shell and the laser-absorbing inner shell are formed by a two-color injection molding process. The transparent outer shell does not absorb the laser, while the laser-absorbing inner shell can absorb the laser to process the characters. The entire keycap is simple to process and has high processing efficiency.
[0013] The inner surface of the inner shell is equipped with a light-shielding layer, which can block the light from the backlit keyboard and external light to avoid light interference and affect the user's recognition of characters. Attached Figure Description
[0014] Figure 1 A three-dimensional structural diagram of the character-embedded keycap as an example;
[0015] Figure 2 for Figure 1 A three-dimensional exploded view of the character-embedded keycaps;
[0016] Figure 3 for Figure 1 A cross-sectional view of the character-embedded keycaps;
[0017] 10. Transparent outer shell; 11. Inner surface of the outer shell; 12. Arc-shaped concave surface;
[0018] Laser-absorbing inner shell 20; outer surface of inner shell 21; inner surface of inner shell 22; connecting post 23;
[0019] Character 30. Detailed Implementation
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] A type of character-in-the-box keycap, see Figures 1-3 It includes a transparent outer shell 10, a laser-absorbing inner shell 20, and characters 30.
[0022] The transparent shell 10 has an inner shell surface 11. The laser-absorbing inner shell 20 is formed on the transparent shell 10 by a two-color injection molding process. The laser-absorbing inner shell 20 has an outer shell surface 21 and an inner shell surface 22. The outer shell surface 21 completely covers the inner shell surface 11. The inner shell surface 22 is provided with a light-shielding layer, which completely covers the inner shell surface 22. The inner shell surface 22 is provided with a connecting post 23 for connecting with the keyboard's connecting shaft. The characters 30 are set on the outer shell surface 21 by a laser etching process.
[0023] In this embodiment, the keycaps have characters 30 laser-etched onto the outer surface 21 of the inner shell and completely enclosed by the transparent outer shell 10. Fingers only contact the surface of the transparent outer shell 10, without direct friction with the characters 30, completely avoiding the blurring of characters 30 caused by finger friction and sweat corrosion in traditional keycaps. The transparent outer shell 10 and the laser-absorbing inner shell 20 are formed using a double-shot injection molding process. The transparent outer shell 10 does not absorb laser light, while the laser-absorbing inner shell 20 absorbs the laser light to process the characters 30. The entire keycap manufacturing process is simple and efficient. The inner surface 22 of the inner shell has a light-shielding layer that blocks light from the backlit keyboard and external light, preventing light interference that could affect the user's ability to recognize the characters 30.
[0024] In this embodiment, the thickness of the transparent outer shell 10 is 0.8mm to 1mm, preferably 1mm, which ensures the strength and light transmission of the keycaps. The thickness of the laser-absorbing inner shell 20 is 0.6mm to 0.8mm, preferably 0.8mm, which ensures the laser etching effect.
[0025] In this embodiment, the entire laser-absorbing inner shell 20 serves as a light-shielding layer, meaning the entire laser-absorbing inner shell 20 is made of a non-transparent material, specifically PC with added colorant. This non-transparent design not only improves the anti-light interference effect but also eliminates the need for a separate light-shielding layer on the laser-absorbing inner shell 20, simplifying the manufacturing process. The transparent outer shell 10 is made of ABS.
[0026] In this embodiment, the top surface of the transparent outer shell 10 is an arc-shaped concave surface 12 with higher sides and a lower middle, which is a conventional ergonomic design. Since the top surface of the transparent shell is curved, if the characters 30 are etched on the top surface of the laser-absorbing inner shell 20, the laser light passing through the top surface of the transparent shell is easily refracted, which can affect the processing. The front side of the transparent outer shell 10 is flat, and the characters 30 are located on the front side of the outer surface 21 of the inner shell, which facilitates processing.
[0027] In this embodiment, the inner surface 22 of the inner shell is provided with a product logo.
[0028] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A character-embedded keycap, characterized in that: The device includes a transparent outer shell, a laser-absorbing inner shell, and characters. The transparent outer shell has an inner surface. The laser-absorbing inner shell is formed onto the transparent outer shell using a two-color injection molding process. The laser-absorbing inner shell has an outer surface and an inner surface. The outer surface completely covers the inner surface. The inner surface has a light-shielding layer that completely covers the inner surface. The inner surface has a connecting post for connecting to the keyboard's connecting shaft. The characters are laser-etched onto the outer surface. The top surface of the transparent outer shell is a concave arc shape with higher sides and a lower center. The front side of the transparent outer shell is flat, and the characters are located on the front side of the outer surface of the inner shell.
2. The character-embedded keycap according to claim 1, characterized in that: The thickness of the transparent outer shell is 0.8mm~1mm, and the thickness of the laser-absorbing inner shell is 0.6mm~0.8mm.
3. The character-embedded keycap according to claim 1, characterized in that: The entire laser-absorbing inner shell serves as the light-shielding layer.
4. The character-embedded keycap according to claim 1, characterized in that: The inner surface of the inner shell is marked with a product identifier.
Citation Information
Patent Citations
Keycap with invisible character effect, and production method and production method application thereof
CN107146727A