Transparent Display Reproducing Plate for External Light Visibility
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Solution Overview
Problem
The visibility of images on transparent display apparatuses is deteriorated due to external light illumination from the rear surface, as existing methods to shield external light are inadequate and do not provide 100% shielding, leading to insignificant improvement in image visibility.
Innovation Solution
A transparent display apparatus with a reproducing plate comprising a substrate and a reproducing plate that includes a plurality of reproducing portions, each reflecting different colors of light incident through the transmissive area, and alternately disposed to reflect light back to improve visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a black film is applied to shield external light, then external light transmission is reduced, but the shielding effect is incomplete and takes considerable time
Solution Approach 1:
The reproducing plate is pre-configured with reproducing portions at specific positions and orientations before operation. When external light enters, these pre-arranged reproducing portions immediately reflect the light back through the transmissive area without requiring any activation time, thus achieving instantaneous shielding effect.
Solution Approach 2:
Instead of simply blocking external light with an opaque material, the invention uses the reproducing plate to reflect external light back through the transmissive area. This converts the harmful external light into a beneficial reflective action that enhances image visibility by creating a counter-directional light path.
2Illumination intensity
If the transmissive area is used to allow external light transmission, then transparency is maintained, but image visibility deteriorates due to external light
Solution Approach 1:
The reproducing plate is positioned specifically behind the transmissive area, creating a localized optical control zone. The reproducing portions are arranged only in the regions where external light would interfere with image visibility, allowing other areas to maintain full transparency without obstruction.
Solution Approach 2:
The reproducing plate acts as an intermediary element between the external light source and the display image. It intercepts external light that would otherwise directly reach the viewer's eye and redirects it back through the transmissive area, mediating the interaction between external light and the displayed image.
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 effectively enhances image visibility by reflecting external light through constructive interference and diffraction, improving luminance and reducing the impact of external light on image clarity.
Implementation Method 1
a reproducing plate reflecting light emitted from the light emission area and incident through the transmissive area
Implementation Method 2
a plurality of first reproducing members reflecting red light incident through the transmissive area, a plurality of second reproducing members reflecting green light incident through the transmissive area, and a plurality of third reproducing members reflecting blue light incident through the transmissive area
Data Source
AI summary
A transparent display apparatus is provided, which may improve visibility of an image with respect to external light. The transparent display apparatus comprises a substrate including a plurality of pixels, each of which has a light emission area and a transmissive area, and a reproducing plate disposed in parallel with the substrate, wherein the reproducing plate includes a plurality of reproducing portions at least partially overlapped with the transmissive area.