Transparent Display Pixel Layout for Transmissivity and Diffraction Control
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Solution Overview
Problem
Transparent display apparatuses face issues with reduced transmissivity, perceptibility of dark points, and increased power consumption due to repair wiring in the transmissive area, as well as reduced visibility from diffraction phenomena.
Innovation Solution
The apparatus is designed with a pixel configuration where sub-pixels are arranged in an X-shape, with transmissive portions between them, and wiring that partially overlaps sub-pixels without overlapping transmissive portions, allowing adjacent sub-pixels of the same color to emit light in case of a dark point, minimizing visibility and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repair wiring is disposed in the transmissive area to connect divided sub-pixels, then the reliability of sub-pixel operation is improved, but the transmissivity of the transmissive area is reduced
Solution Approach 1:
The patent relocates the repair wiring from the transmissive area (2D plane) to the non-display area, utilizing a different spatial dimension. The wiring extends from the transmissive area through the non-display area to reach the target sub-pixel, thereby eliminating obstruction in the transmissive path while maintaining electrical connectivity for repair operations.
2Reliability
If repair wiring is disposed in the transmissive area to cut off dark point sub-pixels, then the image quality is improved, but the visibility is reduced due to diffraction phenomenon
Solution Approach 1:
The patent extracts the repair wiring from the transmissive area where it causes diffraction, and relocates it to the non-display area. This separation removes the harmful diffraction effect from the optical path while preserving the wiring's functional role in cutting off dark point sub-pixels and maintaining image quality.
3Illumination intensity
If multiple sub-pixels are disposed adjacent to each other across multiple pixels, then the transmissivity is improved by reducing wiring in transmissive area, but the device complexity increases
Solution Approach 1:
The patent merges multiple sub-pixels from different pixels into a contiguous arrangement, reducing the need for repair wiring to extend across the transmissive area. By combining sub-pixels from first, second, and third pixels into an adjacent configuration, the design simplifies the wiring path while maintaining high transmissivity.
Data Source
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AI summary
A transparent display apparatus includes a first pixel (P1) disposed on a substrate (110) and having a plurality of first sub-pixels (SP1) and a plurality of transmissive portions (TA), a second pixel (P2) disposed adjacent to the first pixel (P1) and having a plurality of second sub-pixels (SP2) and a plurality of transmissive portions (TA), and a third pixel (P3) disposed adjacent to the first pixel (P1) and the second pixel (P2) and having a plurality of third sub-pixels (SP3) and a plurality of transmissive portions (TA), wherein one first sub-pixel of the plurality of first sub-pixels (SP1) one second sub-pixel of the plurality of second sub-pixels (SP2), and one third sub-pixel of the plurality of third sub-pixels (SP3) are disposed adjacent to each other. The present disclosure can improve the transmissivity of a transmissive portion, minimize the perceptibility of a sub-pixel in which a dark point has occurred, reduce overall power consumption, and prevent reduced visibility due to diffraction phenomenon.