Flat Display Light Deflector for Curved Viewing Effect
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Solution Overview
Problem
Conventional flat panel displays suffer from inconsistent viewing effects due to unequal distances between the viewer and the center and sides of the screen, leading to peak brightness not being directly received, especially in large-sized displays.
Innovation Solution
A display apparatus comprising a flat display panel and a light deflector that converges light emitted from the panel toward a center plane perpendicular to the panel, eliminating the need for physical bending of the screen and achieving a curved surface display effect without requiring high bendability of materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a curved surface display is used to achieve equidistant viewing effect, then the viewing consistency is improved, but the manufacturing difficulty increases due to required high bendability of materials
Solution Approach 1:
The invention separates the curvature function from the display panel itself. The display panel remains flat while a dedicated light deflector component (prism array or freeform lens) is added in front of it to create the curved light paths. This segmentation allows each component to be optimized independently - the panel for display quality and the deflector for light control - avoiding the manufacturing difficulties of bending the panel while achieving the curved viewing effect.
Solution Approach 2:
The light deflector acts as an intermediary component between the flat display panel and the viewer's eyes. Instead of bending the panel itself, this intermediate optical element redirects light rays to simulate the effect of a curved screen, achieving the equidistant viewing effect without requiring the display panel material to have high bendability.
2Ease of manufacture
If a flat display panel is used, then the ease of manufacture is improved, but the viewing consistency deteriorates due to unequal distances from viewer to center and sides of the screen
Solution Approach 1:
The invention introduces optical curvature through the light deflector component. While the physical display panel remains flat, the light deflector uses curved optical surfaces (prism arrays or freeform lenses) to bend light paths, creating a virtual curved display effect that achieves equidistant viewing from center to sides while maintaining the manufacturing advantages of a flat panel.
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 provides a consistent viewing experience by directing light from both sides of the screen toward the viewer's center, enhancing the display's equidistant surrounding effect and overcoming the difficulty of achieving high bendability in curved surface displays.
Implementation Method 1
a light deflector, the light deflector being located in a light emergent direction of the display panel, the light deflector being configured to converge light emitted from the display panel in a direction toward a center plane
Implementation Method 2
a light correction portion, the light correction portion being carried by the first substrate or the second substrate, and the light correction portion being configured to correct incident light into emergent light perpendicular to the display panel
Implementation Method 3
a diffraction grating, the diffraction grating having a grating surface and a groove surface
Implementation Method 4
light emitted from the diffraction grating being refracted by the light emergent surface of the first dielectric layer, changed into emergent light perpendicular to the display panel
Implementation Method 5
light emitted from the light source is totally reflected in the light guide plate, and among light that is totally reflected, light with a specific incident angle is emitted from the light extract groove
Data Source
AI summary
A display apparatus is provided. The display apparatus includes a flat display panel; a light deflector, the light deflector being located in a light emergent direction of the display panel, the light deflector being configured to converge light emitted from the display panel in a direction toward a center plane, the center plane being perpendicular to the display panel, and a vertical center line of the display panel being located in the center plane.