Display Apparatus with Diffraction Patterns and Light Concentration Lenses
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Solution Overview
Problem
Current display apparatuses, such as LCDs and OLEDs, face challenges in achieving high display quality and durability, particularly in head mount display devices, where thickness and durability are concerns due to the need for large optical distances that can lead to structural issues like contraction from heat or moisture.
Innovation Solution
A slim display apparatus design incorporating a display module with light concentration lenses, a buffer layer, and diffraction patterns arranged at regular intervals, which refract light to create replication unit images, improving display quality and reducing thickness by optimizing the optical path and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large optical distance is used in display apparatus, then image quality can be maintained, but the thickness increases and structural durability decreases due to heat or moisture contraction
Solution Approach 1:
The patent changes the optical parameters by introducing diffraction patterns and light concentration lenses, allowing the optical distance to be reduced from traditional large values to 50-150 μm while maintaining image quality through controlled light diffraction and concentration mechanisms
Solution Approach 2:
The patent introduces intermediate optical elements (diffraction patterns and light concentration lenses) between the display panel and the viewer, which mediate the light path to achieve high image quality without requiring a large optical distance, thereby reducing thickness and improving structural durability
2Length of stationary object
If the thickness of display apparatus is reduced, then durability is improved, but display quality may deteriorate without adequate optical distance
Solution Approach 1:
The patent transforms the optical system parameters by using diffraction patterns with specific intervals and light concentration lenses with optimized curvature radii, enabling high display quality to be achieved in a slim profile by controlling light behavior through these structured elements
Solution Approach 2:
The patent adds dimensional complexity to the optical path by introducing multiple layers (display panel, light concentration lens layer, buffer layer, diffraction pattern layer) with precise thicknesses and arrangements, achieving high display quality in a reduced overall thickness through sophisticated multi-dimensional optical design
3Manufacturing precision
If light is not properly concentrated and diffraction controlled, then non-light-emitting areas become visible, but adding optical elements increases device complexity
Solution Approach 1:
The patent merges multiple optical functions into an integrated structure where the light concentration lens and diffraction pattern work together as a unified optical system, eliminating the need for separate complex optical components while achieving precise light control and high image clarity
Solution Approach 2:
The patent designs the light concentration lens and diffraction pattern structure to perform multiple functions simultaneously: concentrating light, controlling diffraction, defining image boundaries, and preventing non-light-emitting areas from being visible, thereby reducing overall device complexity through multi-functional integration
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 enhances display quality by creating replication unit images that improve image clarity and reduces the thickness of the display apparatus, thereby increasing durability and preventing non-light-emitting areas from being visible, addressing the structural challenges faced by existing technologies.
Implementation Method 1
a plurality of diffraction patterns arranged at regular intervals on the buffer layer, where the diffraction patterns diffract lights incident thereto
Implementation Method 2
a plurality of light concentration lenses arranged on the display panel
Implementation Method 3
a buffer layer disposed on the light concentration lenses
Data Source
AI summary
A display apparatus includes a display module including a display surface. The display module includes a display panel including a plurality of display devices which displays an image on the display surface, a plurality of light concentration lenses arranged on the display panel, a buffer layer disposed on the light concentration lenses, and a plurality of diffraction patterns arranged at regular intervals on the buffer layer, where the diffraction patterns diffract a portion of lights incident thereto.