Perpendicular Dimming Elements for Mode Switching Display Panels
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Solution Overview
Problem
Current display devices with anti-peeping functions are limited in their ability to switch between viewing modes, resulting in a simple display mode that does not meet the diverse viewing needs of users from different angles, such as in vehicle-mounted central control scenarios where privacy and safety are concerns.
Innovation Solution
A display panel equipped with a first and second dimming element, where the alignment directions of these elements are perpendicular to each other, allowing the panel to switch between multiple modes, including sharing, single, and dual display modes, thereby enhancing applicability and providing an anti-peeping effect in specific modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grating structure is formed on the light-emitting side to reduce viewing angle range, then anti-peeping function is achieved, but the display mode becomes too simple and cannot switch between different modes
Solution Approach 1:
The patent applies the dynamics principle by making the alignment directions of the first and second dimming elements controllable and switchable. The alignment directions can be dynamically adjusted between different states (first alignment direction and second alignment direction perpendicular to each other), enabling the display device to switch between normal display mode and anti-peeping mode. This dynamic controllability resolves the contradiction by allowing the system to adapt its functionality based on operational requirements.
Solution Approach 2:
The patent employs parameter changes by modifying the alignment direction parameter of the dimming elements. By changing the alignment direction from a fixed state to a controllable state that can switch between different orientations, the display device achieves mode switching capability. This parameter change enables the system to transition between providing wide viewing angles and restricting viewing angles for anti-peeping functionality.
2Reliability
If the display device is always in privacy display mode, then user privacy is protected, but the applicability and user experience are reduced due to limited display modes
Solution Approach 1:
The patent makes the privacy display function dynamic rather than static. The first and second dimming elements can be controlled to switch between different alignment directions, allowing the device to transition between privacy mode and normal mode. This dynamic control enables the system to provide privacy protection when needed while maintaining normal display functionality in other scenarios, thereby improving applicability.
Solution Approach 2:
The patent implements multi-functionality by enabling the display device to perform both normal display and anti-peeping functions through the controllable alignment directions of the dimming elements. The same hardware structure supports multiple operational modes, making the device universally applicable to different usage scenarios including both privacy-protected situations and open sharing situations.
3Adaptability or versatility
If dimming elements with perpendicular alignment directions are added to enable mode switching, then display mode versatility is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the dimming function into two separate dimming elements (first dimming element and second dimming element) with different alignment directions. Each dimming element can be independently controlled, allowing mode switching while keeping each individual element relatively simple in structure. This segmentation approach enables complex functionality through coordinated simple components.
Solution Approach 2:
The patent employs asymmetry by setting the alignment directions of the first and second dimming elements perpendicular to each other rather than identical. This asymmetric arrangement enables the system to achieve different display modes through controlled activation of each element, providing versatility while maintaining structural efficiency through the orthogonal relationship.
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
The display panel can selectively transmit light from different directions, allowing users in specific viewing angles to view the screen while preventing others from doing so, thereby improving user experience and meeting various application scenarios' requirements.
Implementation Method 1
The first dimming element is disposed on a side of the panel main body. The light element is disposed on a side of the panel main body away from the first dimming element or between the first dimming element and the panel main body. The second dimming element has a second alignment direction, and wherein the first alignment direction is perpendicular to the second alignment direction.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a panel main body. A first dimming element is disposed on a side of the panel main body. The first dimming element has a first alignment direction. A second dimming element is disposed on a side of the panel main body away from the first dimming element or between the first dimming element and the panel body. The second dimming element has a second alignment direction. The first alignment direction is perpendicular to the second alignment direction. The applicability of the display panel is improved, and it has an anti-peeping effect.