Multi-view Display Pixel Arrangement and Parallax Barrier
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Solution Overview
Problem
Existing display devices require multiple units to cater to different viewer needs, leading to increased cost and space requirements, as they struggle to simultaneously display high-quality video pictures in multiple directions without compromising image quality or requiring complex compression processing.
Innovation Solution
A display device with a video signal generating section that arranges pixels of multiple video source signals at predetermined intervals, allowing for high-quality video signal generation without compression, and includes a parallax barrier to direct pixels to specific viewers, ensuring each viewer sees only their intended image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple display devices are used to satisfy different viewer needs, then individual viewers can obtain different information, but cost and space requirements increase
Solution Approach 1:
The patent combines multiple display devices into a single multi-view display device that can simultaneously display different video pictures to different viewers. The display section integrates multiple display regions, and the video signal generating section consolidates multiple video source signals into a single processed output, reducing the total number of devices while maintaining the ability to serve multiple viewers with different content
Solution Approach 2:
The single display device is designed to perform multiple functions by displaying different video pictures to different viewers simultaneously. The display section can present various content (navigation, video, information) to different positions, making one device universal enough to replace multiple specialized display devices
2Productivity
If compression processing is executed to generate video signal from video source signal, then pixel arrangement can be adjusted, but image quality deteriorates
Solution Approach 1:
The patent resolves the pixel arrangement issue by transitioning from horizontal compression to vertical arrangement. Instead of compressing pixels horizontally (which degrades image quality), the system arranges pixels vertically in the time dimension, allocating different pixel lines to different viewing directions. This dimensional shift allows multiple views to be generated without horizontal compression, preserving image quality while achieving multi-view functionality
3Adaptability or versatility
If complex compression processing is executed, then video signal can be generated for multiple directions, but device complexity increases
Solution Approach 1:
The patent extracts the compression processing step from the video signal generation process, keeping only the essential pixel arrangement and allocation functions. By removing the complex compression algorithm and relying on straightforward vertical pixel allocation, the device achieves multi-directional display capability with minimal processing complexity, using only basic signal routing and pixel line allocation
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 simultaneous high-quality video display in multiple directions on a single screen without the need for complex processing or additional hardware, reducing costs and maintaining image quality by directing pixels appropriately.
Implementation Method 1
a parallax barrier, which directs light beams from the pixels to specific viewing directions
Data Source
AI summary
A display device includes a display section and a video signal generating section. The display section displays n video pictures in n viewing directions on one and the same screen on a basis of a video signal where n indicates natural number. First particular number of pixels are arranged in a first direction in the display section. The video signal generating section arranges pixels of each of n video source signals at predetermined intervals in a first direction to generate the video signal. Each of the n video source signal indicates a video picture in which second particular number of pixels are arranged in the first direction. The second particular number is less than the first particular number.