Dual View Display Optical Barrier Resolution
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Solution Overview
Problem
Existing dual view display systems that use parallax barriers or segmented backlighting suffer from reduced image resolution when displaying two distinct images, as they rely on interlacing or parallax angles, resulting in each image having half the resolution of the display.
Innovation Solution
A dual view display system employing a single display device with a first and second optical element, separated by an optical barrier, which directs light in different directions without leakage, maintaining full resolution for both images by preventing light propagation between the elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a parallax barrier or segmented backlighting is used to display different images in different directions, then dual view capability is achieved, but the resolution of each image is reduced to half of the display resolution
Solution Approach 1:
The display system is segmented into distinct optical zones using a parallax barrier that divides the display into multiple viewable regions. Each region directs light to specific viewing angles, allowing different images to be displayed simultaneously to different viewers without interfering with each other's resolution
Solution Approach 2:
Different portions of the display have different optical properties through the use of a segmented backlighting source. The backlighting is divided into separate segments that correspond to different viewing zones, with each segment optimized to provide full resolution to its designated viewing direction while preventing light leakage to other zones
2Adaptability or versatility
If light is directed in multiple directions using optical elements, then multiple viewing directions are enabled, but light leakage between optical elements occurs causing image quality degradation
Solution Approach 1:
An optical barrier is introduced as an intermediary element between the optical elements directing light to different viewing directions. This barrier prevents light intended for one viewing direction from leaking into adjacent optical elements, thereby maintaining image quality and reducing cross-contamination between different viewable regions
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 system effectively displays two distinct images at the same resolution as the display device, improving upon previous technologies that halve the resolution when showing different images to different viewers.
Implementation Method 1
an optical barrier arranged between the first optical element and the second optical element in a manner effective to prevent light from propagating therebetween
Implementation Method 2
The first optical element overlays one pixel, one or more adjacent pixels or a first portion of the pixels and is configured to direct light emitted from the first portion of the pixels toward a first direction
Implementation Method 3
The second optical element overlays one pixel, one or more adjacent pixels, or a second portion of the pixels... and is configured to direct light emitted from the second portion of the pixels toward a second direction distinct from the first direction
Data Source
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AI summary
A dual view display system (10) that displays two different images in different directions (16) using a single display device (40). The dual view display (11) includes a first optical element (46) overlaying a first portion of the pixels (42) and configured to direct light emitted from the first portion of the pixels (42) toward a first direction (16), a second optical element (48) overlaying a second portion of the pixels (42) and configured to direct light emitted from the second portion of the pixels (42) toward a second direction (20) distinct from the first direction (16), and an optical barrier (50) arranged between the first optical element (46) and the second optical element (48) effective to prevent light from propagating therebetween.