Switchable Dimming Layer for Anti-Peep Display Panels
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Solution Overview
Problem
Current display devices with anti-peep functions, which utilize grating structures, often compromise on viewing angle range, affecting the display effect and user privacy protection.
Innovation Solution
A display panel with a first dimming layer comprising light shielding and light receiving members, where the light receiving members can switch between lens and non-lens structures, enhancing the display effect at specific viewing angles while maintaining an anti-peep function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a grating structure is formed on the light-emitting side to implement anti-peep function, then user privacy protection is improved, but viewing angle range is reduced
Solution Approach 1:
The patent employs a dimming layer with switchable light receiving members that can dynamically change between lens structure and non-lens structure. When in lens structure mode, the members focus light to narrow the emission angle for anti-peep function. When in non-lens structure mode, they allow light to pass through freely for wide viewing angle display, thus dynamically adapting to different functional requirements
Solution Approach 2:
The patent changes the optical parameters of the light receiving members by switching between lens and non-lens configurations. This parameter change allows the same structure to provide different optical functions: focused narrow-angle emission for privacy protection versus wide-angle transmission for normal display operation
2Manufacturing precision
If light receiving members are designed as lens structure to improve display effect at specific viewing angles, then display quality at front angle is improved, but light emission angle range is reduced
Solution Approach 1:
The light receiving members are designed to be switchable between lens and non-lens structures. In lens structure configuration, they concentrate light to improve display quality at the front viewing angle. In non-lens structure configuration, they allow light to emit at wider angles, thus dynamically adapting to different display quality requirements
Solution Approach 2:
The light receiving members serve multiple functions through their switchable design: they act as focusing elements to enhance front-angle display quality when needed, and as light-transmitting elements to enable wide-angle emission when needed, making a single structure capable of performing multiple optical functions
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
Improves the display effect at specific viewing angles while preventing peeping from other angles, offering enhanced user privacy and wider light emission angles in conventional display modes.
Implementation Method 1
the plurality of light receiving members is a lens structure in a first mode
Data Source
AI summary
Embodiments of the present application provides a display panel and a display device, the display panel includes a display panel body; a first dimming layer is disposed on one side of the display panel body, the first dimming layer includes a plurality of light shielding members and a plurality of light receiving members, the plurality of light shielding members are disposed at intervals, each light receiving member is disposed between two adjacent light shielding members; wherein the plurality of light receiving members is a lens structure in a first mode. A display effect of the display panel at a specific viewing angle is improved, and the display panel has an anti-peep function.