Bezel-Less Display Panel Sound via Rear Thin Film Actuators
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Solution Overview
Problem
The narrow-bezel or bezel-less design in display technology limits the placement of speakers, preventing them from generating sound effectively.
Innovation Solution
Incorporating thin film actuators on the rear side of the display panel to indirectly drive the panel to vibrate and generate sound, eliminating the need for a bezel to accommodate speakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If narrow-bezel or bezel-less design is adopted, then display area is increased, but speaker placement is limited and sound generation is prevented
Solution Approach 1:
The patent moves the speaker from the traditional front bezel area to the rear side of the display panel, utilizing the third dimension (depth/thickness) to resolve the spatial conflict. The thin film actuator is positioned on the rear side and drives the display panel to vibrate, transmitting sound to the user from the front, thus eliminating the need for front bezel space while maintaining sound generation capability
Solution Approach 2:
The display panel serves dual functions: displaying visual information and generating sound. By making the display panel itself vibratable through the thin film actuator, it becomes both the display surface and the speaker diaphragm, eliminating the need for separate speaker components in the bezel area
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables sound generation without the bezel, enhancing user experience by ensuring sound output in bezel-less designs.
Implementation Method 1
at least one thin film actuator... indirectly drives the display panel to vibrate
Implementation Method 2
drive the display panel to vibrate to generate sound
Data Source
AI summary
Disclosed is a display device, including a display panel and at least one thin film actuator. The display panel includes a front side and a rear side that are opposite to each other. The thin film actuator is arranged on the rear side, and the thin film actuator indirectly drives the display panel to vibrate through a vibrating cavity or a connecting structure.