Active-Area Mode Controller for Zoned Display Viewing Angles
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Solution Overview
Problem
Display apparatuses in vehicles face challenges in controlling viewing angles and bezel size while ensuring luminance uniformity and minimizing distractions for drivers and passengers.
Innovation Solution
A display apparatus with a display panel divided into active and non-active areas, featuring sub-pixels with adjustable viewing modes and lenses to control angles, and a mode controller to selectively limit viewing angles and reduce bezel area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display apparatus uses a single viewing mode for the entire display panel, then the structure is simple and easy to manufacture, but the viewing angle control is inflexible and cannot be adjusted for different areas
Solution Approach 1:
The display panel is divided into multiple independent area units, each capable of operating in different viewing modes (wide-view or narrow-view). Each area unit contains its own sub-pixels and is controlled by separate control signals, enabling independent viewing angle adjustment for different regions of the display.
Solution Approach 2:
The display apparatus implements dynamic switching between wide-view mode and narrow-view mode for different area units. The viewing mode of each area can be changed in real-time based on operational requirements, such as switching to narrow-view mode when the vehicle is in operation to reduce driver distraction.
2Area of stationary object
If the display apparatus uses a large bezel area to house control components, then component placement is simplified, but the overall display area is reduced and the bezel size increases
Solution Approach 1:
The mode controller is disposed within the active area of the display panel rather than in the bezel area. This spatial reorganization allows the controller to occupy space that would otherwise be part of the display area, thereby maximizing the visible display area while maintaining all necessary control functions.
3Reliability
If the display apparatus uses conventional power line arrangement, then the wiring is simple, but voltage rising phenomenon occurs and power supply stability is compromised
Solution Approach 1:
The power line arrangement is optimized by disposing low potential power lines in specific areas where mode controllers are located. This localized power line configuration addresses voltage rising issues in specific regions of the display panel without requiring a complete redesign of the entire power distribution system.
4Object-affected harmful factors
If the display apparatus displays all contents without restriction, then information completeness is maximized, but driver concentration is reduced and safety is compromised
Solution Approach 1:
The display content is segmented into different area units with different viewing modes. When the vehicle is in operation, area units can be switched to narrow-view mode to limit visibility from certain angles, thereby reducing driver distraction while maintaining full information availability for authorized viewers.
Solution Approach 2:
The display apparatus dynamically adjusts the viewing mode of different area units based on the vehicle's operational state. When the vehicle is operating, the system switches to narrow-view mode for relevant areas to prevent driver distraction, and can switch to wide-view mode when the vehicle is stationary to provide full information access.
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 solution allows for independent control of viewing angles in different areas, minimizing bezel size, and improving luminance uniformity, enhancing user experience by reducing distractions.
Implementation Method 1
a first lens which refracts light from the first light emitting diode, a second light emitting diode which emits a same color light as the first light emitting diode and a second lens which refracts light from the second light emitting diode
Data Source
AI summary
A display apparatus includes a display panel including an active area in which a plurality of pixels including a plurality of sub pixels is disposed and a non-active area disposed so as to enclose the active area, and a mode controller which is disposed in the active area and configured to supply a mode signal to the plurality of sub pixels. The mode controller is disposed between adjacent the plurality of pixels.