Prism Optical Element for Multi-Screen Display Border Reduction
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Solution Overview
Problem
The borders between adjacent display screens in multi-screen display devices can negatively impact viewing quality by creating visual distractions and ghosting effects due to light passing through the seams.
Innovation Solution
A multi-screen display device incorporating a prism structure optical element with a substrate and prism columns arranged to refract light from the display areas, minimizing the perception of borders and reducing ghosting by using light-absorbing surfaces or increased roughness on specific surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple display screens are arranged adjacent to each other with borders, then multi-screen display functionality is achieved, but the borders create visual distractions and affect viewing quality
Solution Approach 1:
A prism structure optical element is introduced as an intermediary component between adjacent display screens. This optical element covers the borders and refracts light to redirect it away from the viewer's line of sight, thereby mediating the harmful visual effect of borders while preserving the multi-screen display functionality
Solution Approach 2:
The prism structure utilizes the light that would otherwise cause ghosting and visual distraction by refracting it through specific angles. The light passing through the border area is redirected to create a beneficial optical effect that eliminates the harmful visual artifacts while maintaining screen visibility
2Area of stationary object
If display screens are placed close together for multi-screen configuration, then screen density is increased, but light passing through seams causes ghosting effects
Solution Approach 1:
The prism structure optical element serves as a mediator positioned at the seams between display screens. It intercepts light attempting to pass through the gaps and refracts it in controlled directions, preventing the ghosting effect while allowing the screens to remain in close proximity for maximum display area coverage
Solution Approach 2:
The prism structure changes the optical parameters (refraction angle, light path direction) of light passing through the seam area. By modifying these optical parameters, the light is redirected away from creating ghosting images while maintaining the structural configuration that enables high display area coverage
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 prism structure optical element effectively guides light from the display areas to the viewer, reducing the visibility of borders and improving display quality by minimizing ghosting effects, resulting in a seamless viewing experience.
Implementation Method 1
Each of the at least one prism structure optical element is disposed between the adjacent two display screens having the included angle and covers two side edges adjacent to each other of the borders of the adjacent two display screens and a part of the display areas of the adjacent two display screens
Implementation Method 2
The second surfaces and/or the fourth surfaces are light absorbing surfaces
Data Source
AI summary
A multi-screen display device includes a plurality of display screens and a prism structure optical element disposed between two adjacent display screens. The prism structure optical element includes a substrate and a plurality of prism columns. The substrate includes a first region and a second region adjacent to each other, and the lengths of the first and second regions are respectively La and Lb, and La≥Lb. The prism columns include a plurality of first and second prism columns in the first and second regions respectively. Each first prism columns has two interior angles θa1, θa2, a first surface and a second surface. Each second prism columns has two interior angles θb1, θb2, a third surface and a fourth surface. The second and/or fourth surfaces are light absorbing surfaces, or a roughness of the second and fourth surfaces is greater than that of the first and third surfaces.