Virtual Curved Display via Grating Diffraction
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Solution Overview
Problem
Traditional flat display panels provide a poor viewing experience due to light distribution properties, especially for large screens, where the symmetry axis facing human eyes leads to a bad viewing experience, and existing curved displays are difficult to bend and heavy.
Innovation Solution
A panel with a virtual curved display surface is created using a grating with light-transmitting and light-shielding regions of varying widths, emitting light to form a virtual curved surface through the binocular parallax principle, enhancing visual impact without the need for physical bending or heavy devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a physical curved display panel is used, then the visual impact and viewing experience are enhanced, but the device becomes heavy and difficult to manufacture
Solution Approach 1:
The patent uses a grating structure to create a virtual curved surface that copies the visual effect of a physical curved display without requiring actual curved panel construction. The grating diffracts light to generate a curved virtual image, achieving the aesthetic and viewing benefits of curvature while maintaining a flat, lightweight physical structure
Solution Approach 2:
The patent replaces the mechanical/physical curved panel structure with an optical system using gratings and light diffraction. Instead of physically bending the display panel (mechanical solution), the invention uses optical diffraction through grating structures to create the curved visual effect, eliminating the weight and manufacturing difficulties associated with physical curvature
2Ease of manufacture
If a flat display panel is used, then the device saves physical space and is easier to manufacture, but the viewing experience deteriorates due to light distribution properties
Solution Approach 1:
The patent introduces a grating structure as an intermediary element between the flat display panel and the viewer's eyes. This grating layer diffracts the light emitted from the flat panel, creating a curved virtual surface that improves viewing experience while the underlying flat panel maintains its manufacturing simplicity and space-saving advantages
Solution Approach 2:
The patent adds a virtual dimensional aspect by creating a curved virtual surface through light diffraction, while the physical panel remains flat in the third dimension. The grating structure manipulates light to perceive curvature in the visual domain without adding physical curvature to the hardware, thus maintaining ease of manufacture while enhancing viewing experience
3Ease of operation
If a physical curved display panel is used, then the viewing experience is improved, but the manufacturing process becomes difficult and complex
Solution Approach 1:
The patent creates a virtual copy of the curved surface effect using grating structures and light diffraction, avoiding the need for complex physical curved panel manufacturing. The grating can be manufactured using standard flat panel techniques, while the curved effect is generated optically
Solution Approach 2:
The patent substitutes the mechanical manufacturing challenge of creating physical curved panels with an optical solution using gratings. Instead of bending and shaping physical display materials (difficult manufacturing), the invention uses light diffraction through grating structures to create the curved visual effect, significantly simplifying the manufacturing process
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 the visual effect by creating a virtual curved surface that mimics the experience of a curved display, overcoming the limitations of traditional flat panels while maintaining the space-saving advantages and avoiding the difficulties of physical bending and weight associated with curved displays.
Implementation Method 1
light emitted from the display panel forms a virtual curved surface through the grating
Implementation Method 2
emitting light to form a virtual curved surface through the binocular parallax principle
Data Source
AI summary
A panel with a virtual curved display surface and a display device are provided. The virtual curved display panel includes a display panel and a grating. The grating is disposed at a light-exiting side of the display panel, and includes a plurality of light-transmitting regions and a plurality of light-shielding regions spaced apart from each other. Respective widths of the plurality of light-shielding regions of the grating are gradually decreased as respective distances from the plurality of light-shielding regions to a symmetry axis of the display panel are increased, and respective widths of the plurality of light-transmitting regions are gradually increased as respective distances from the plurality of light-transmitting regions to the symmetry axis of the display panel are increased.