Custom Dome Sheets & LGF (Light Guide Film)
Dome Sheets & LGF (Light Guide Film) solutions represent a significant evolution beyond standard metal domes. This technology integrates a reliable Metal Dome Sheet with a precision light guide layer into a single, unified LGF Dome Sheet module. This innovative approach solves key design challenges—such as uneven backlighting, complex assembly, and increased thickness—associated with traditional backlit buttons. An LGF metal dome array delivers both crisp tactile feedback and perfectly uniform illumination, making it the ideal choice for modern interfaces where user experience and aesthetics are paramount.
| 매개변수 카테고리 | 표준 범위 | 프리미엄 사양 | 테스트 표준 |
|---|---|---|---|
| 작동력 | 10 - 200 gf | 5 - 500 gf(사용자 지정 가능) | IEC 61000-4-2 |
| 여행 | 0.05 - 0.5mm | 0.02 - 1.0mm | ISO 13732-1 |
| 접촉 저항 | < 100mΩ 미만 | < 50mΩ | EIA-364-23 |
| 바운스 시간 | < 10ms | < 5ms 미만 | MIL-STD-202 |
| 운영 수명 | 1백만 주기 | 5백만 주기 | IEC 60384 |
| 도전 과제 | 문제 설명 | 솔루션/기술 혁신 | 달성한 성과 |
|---|---|---|---|
| 촉각 일관성 제어 | 배치 간 힘 변화 > 15 % | 디지털 툴링 + AI 기반 100 % 포스 검사 | 힘 편차 < 5 % |
| 방수 및 방진 | 열악한 환경에서의 안정성 | 래버린스 엣지 씰 + 나노 소수성 코팅 | IP68(3m 침수 테스트를 통해 검증됨) |
| 초박형 요구 사항 | 슬림한 디바이스 폼 팩터 | 0.08mm 초박형 스테인리스 스틸 돔 + 유연한 기판 라미네이션 | 휴대폰 측면 키 두께를 0.8mm에서 0.3mm로 줄였습니다. |
| 애플리케이션 시나리오 분석 | 환경 요구 사항 | 기계적 특성 | 전기 매개변수 | 구조적 제약 |
|---|---|---|---|---|
| 소비자 가전 | -20°C - +70°C | 10 - 150 gf | < 100mΩ 미만 | 두께 < 0.3mm |
| 자동차 전자 제품 | -40°C - +105°C | 50 - 300 gf | < 50mΩ | IP67 보호 |
| 의료 장비 | +10°C - +40°C | 20 - 100 gf | 의료 인증 | 곡면 컨포멀 |
| 솔루션 계층 | 기판 재질 | 돔(금속) 재질 | 평점 생활 |
|---|---|---|---|
| 경제적인 | PET | 304 스테인리스 스틸 | 0.5m 주기 |
| 균형 잡힌 | PEN | 301 스테인리스 스틸 | 1m 주기 |
| 플래그십 | PI | 베릴륨-구리 합금 | 5m 주기 |
Shanyo’s Dome Sheets & LGF provide critical benefits for sophisticated electronic designs:
Engineered microstructures within the LGF Dome Array ensure even light diffusion across the entire panel, eliminating hotspots and creating a premium, consistent glow.
Combining the switch and light guide functions into a single film module enables a remarkably slim profile, facilitating sleek, modern product designs.
As a pre-assembled unit, the LGF metal dome array reduces component count, streamlines production, and minimizes potential points of failure, improving overall durability.
The integrated Metal Dome Sheet maintains a definitive, reliable snap feel with a lifecycle of over 500,000 actuations, ensuring a high-quality user interaction.
Both the tactile dome switch layout and backlighting patterns can be fully customized in shape and effect, supporting unique branding and UI requirements.
The monolithic film construction provides a natural barrier against dust and moisture, forming an excellent foundation for achieving high IP-rated enclosures.
Shanyo's Dome Sheets & LGF can be applied to various industries and specific products.
| Application Field | Typical Use Case | Key Benefits Provided by LGF Dome Sheets |
|---|---|---|
| 소비자 가전 | Smartwatch crowns, high-end remote controls, gaming controllers. | Delivers brand-defining uniform backlight and premium haptics in compact, design-driven devices. |
| Automotive Interiors | Steering wheel controls, center console touch panels, window switches. | Meets automotive-grade durability and temperature requirements while offering excellent visibility and feel. |
| Medical Devices | Patient monitor interfaces, portable diagnostic equipment. | Ensures clear, reliable operation in low-light environments; seamless surface is easy to clean and disinfect. |
| Industrial Controls & Home Appliances | Industrial HMI panels, control panels for premium kitchen appliances. | Provides a robust, reliable interface with excellent visibility in various lighting conditions. |
A: The key advantage is integration and performance. A traditional assembly stacks separate components (LEDs, light guide plate, rubber dome, metal dome), leading to potential alignment issues, light loss, and greater thickness. An LGF metal dome array integrates the light guide and switch into a single, thin film, guaranteeing superior backlight uniformity, a slimmer profile, and simpler, more reliable assembly.
A: Not at all. The tactile response is solely determined by the performance of the precision-engineered metal snap dome. The light guide layer is designed to coexist without interfering with the dome’s operation, ensuring you receive both perfectly even illumination and a crisp, consistent tactile click.
A: Yes. By designing independent optical channels and zones within the LGF Dome Array, and pairing it with a compatible LED driver circuit, we can achieve dynamic lighting effects including multi-color RGB, breathing patterns, and sequential illumination.
A: Absolutely. The LGF Dome Sheet module itself, being a flat film circuit, is inherently easier to seal than mechanical buttons. Using full lamination bonding, perimeter gaskets, or other sealing techniques, end products can readily achieve high ingress protection ratings like IP68.
A: To begin, we primarily need:
1) Your panel layout and industrial design, specifying desired lit areas and effects;
2) Backlight performance goals (brightness, color, LED specifications);
3) Tactile requirements (actuation force and travel for each key);
4) Environmental specs (operating temperature, required IP rating).
We will then provide a complete solution from optical simulation to functional prototypes.
Pick up any premium smartwatch, close your eyes, and just press the side button. There is a very specific, satisfying, and hyper-crisp snap that happens. It feels incredibly solid. It
There is a very specific, highly satisfying click that happens when pausing a track on high-end wireless earbuds. It feels physical and completely solid. It’s almost hard to believe there’s
The Hidden Role of Metal Dome Switches in Fitness Equipment Walk into any gym and start pressing buttons on treadmills, ellipticals, or stationary bikes. Each press feels responsive, clicks satisfyingly,
