Crossed Lenticular Optics for Tiled Display Boundary Blending
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Solution Overview
Problem
Large display devices manufactured by connecting multiple smaller display units suffer from increased defect rates, reduced productivity, and decreased immersion due to visible boundaries between units, which affect the overall viewing experience.
Innovation Solution
A tiled display device design incorporating an optical member with lenticular lenses and prism patterns that gradually increase in width relative to gaps, overlapping display and non-display areas to minimize boundary recognition and enhance luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a large display, then the screen size is increased, but the boundary areas between devices create a sense of separation and reduce immersion
Solution Approach 1:
An optical member is introduced as an intermediary component between adjacent display devices. This optical member includes light-guiding structures (lenticular lenses and/or prism patterns) that redirect light from the display area of one device into the boundary area, effectively mediating the transition between display regions and eliminating the visual separation caused by boundary areas.
2Area of stationary object
If the number of pixels is increased to achieve large display size, then the screen area is enlarged, but the defect rate of light emitting elements increases and reliability decreases
Solution Approach 1:
The large display is segmented into multiple smaller display devices that are connected together. Each individual display device maintains a manageable pixel count and acceptable defect rate, while the collective arrangement of multiple devices achieves the desired large overall display area, thereby maintaining reliability while scaling up the total display size.
3Ease of manufacture
If boundary areas are reduced or eliminated to improve immersion, then the display quality is enhanced, but the manufacturing complexity increases
Solution Approach 1:
Instead of attempting to reduce boundary areas in the planar dimension, the solution transitions to the optical dimension by introducing light-guiding structures within the optical member. These structures manipulate light paths in three-dimensional space, redirecting light from display areas into boundary areas, thereby addressing the boundary visibility issue through optical dimensionality rather than spatial reduction.
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 design effectively reduces the visibility of boundaries between display units, enhancing immersion and luminance, thereby improving the overall viewing experience.
Implementation Method 1
an optical member including a base substrate, a plurality of first lenticular lenses located on a lower surface of the base substrate and extending in a first direction, and a plurality of second lenticular lenses located under the first lenticular lenses and extending in a second direction crossing the first direction
Implementation Method 2
a plurality of first prism patterns located on an upper surface of the base substrate and extending in the first direction, a first upper planarization layer on the first prism patterns, and a plurality of second prism patterns located on the first upper planarization layer and extending in the second direction
Data Source
AI summary
A tiled display device includes a plurality of display devices, and an optical member located on the display devices, wherein the optical member includes a base substrate, a plurality of first lenticular lenses located on a lower surface of the base substrate and extending in a first direction, and a plurality of second lenticular lenses located under the first lenticular lenses and extending in a second direction crossing the first direction.