Thin-Film Switches: Introduction to Types of Thin-Film Panel Switches (Part 2)
Release date:
Www.zdxtt.com
2021-04-01
I. Thin-film switch Can be categorized into drum-type and flat-type:
1. Pressure dome switches are predominantly designed with membrane switches. The shape of the pressure dome can vary, including centrally raised lettering (text, patterns, or keys), spherical protrusions (such as framed or linear designs), basin-shaped domes, and edge-embedded protrusions (linear forms). After being pressed into the membrane panel, these domes significantly enhance the decorative appeal while also improving the operator's tactile sensitivity, thereby facilitating easy identification.
2. The flat type features no embossing. It can be used as a tactile-free keycap for membrane panel switches or simply serve as a label for decorative, indicative, or explanatory purposes. The film is available in three finishes: matte, glossy, and a combination of both. Matte films are typically made from frosted materials, offering a pleasant tactile feel, enhanced aesthetics, and are widely used. Glossy films are printed on smooth surfaces, delivering a bright and eye-catching appearance. Films combining both matte and glossy finishes usually feature a unique design where the front side uses glossy material while the back side incorporates a frosted effect through the application of frosted oil, creating a distinctive textured look.

II. In different industries, film panel switches are known by various names; the more common ones include:
1. Keypad; 2. Thin-film tactile keyboard; 3. Stickers; 4. Facial masks; 5. Conductive film; 6. Key switches; 7. Surface-mounted components; 8. Touch switches, etc.
III. Other Classifications of Film Switches
(1) Classified by circuit substrate into flexible boards and rigid boards;
(2) Classified by panel shape into flat-type or three-dimensional type;
(3) Classified by operational experience into seamless and perceptible types;
(4) Classified by special purpose into transparent type and touch-sensitive film screen type.
(5) Thin-film panel switch By combining method, panels are categorized into integrated and discrete types, while keycaps are classified into those paired with keyboards.
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