Liquid crystal writing film with white handwriting and liquid crystal blackboard
By using a multi-layer liquid crystal structure and a microprocessor-controlled white liquid crystal writing film, the problems of insufficient handwriting visibility and high cost of liquid crystal writing tablets have been solved. This achieves high-contrast white handwriting display and intelligent operation, making it suitable for educational, office, and other scenarios.
Patent Information
- Application Number
- CN202520094311.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-05-01
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing LCD writing tablets suffer from poor handwriting visibility at long distances, lack white text, and have high production costs, resulting in a subpar user experience and limited applications.
Design a liquid crystal writing film for white characters, which adopts a multi-layer liquid crystal layer structure. By adjusting the reflectivity and wavelength distribution of the liquid crystal layers, combined with a microprocessor control circuit, precise light management and color adjustment are achieved. It is also equipped with a handwriting color changing and erasure position positioning device.
It improves handwriting visibility and contrast, reduces production costs, enhances user experience and functionality, and is suitable for a variety of application scenarios.