Pixel Unit with Central Display and Peripheral Transmissive Zone
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Solution Overview
Problem
Conventional transparent display apparatuses face a trade-off between transmittance and display quality, where improving transmittance often decreases color reproducibility and vice versa, limiting their ability to display high-quality images effectively.
Innovation Solution
A pixel unit design featuring a central pixel portion for color display and a peripheral transmissive portion for light transmission, with the area ratio between the transmissive and pixel portions optimized to enhance both transmittance and display quality, using materials like transparent organic or inorganic materials and electrodes for high conductivity and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the transparency of the transparent display apparatus is increased to improve light transmittance, then the light transmittance is improved, but the color reproducibility is decreased
Solution Approach 1:
The pixel unit is segmented into two distinct functional regions: a pixel portion for color display and a transmissive portion for light transmission. This segmentation allows each region to be optimized independently - the pixel portion uses color filters and emissive materials for accurate color reproduction, while the transmissive portion uses transparent materials with minimal optical interference for maximum light transmission.
Solution Approach 2:
Different regions of the pixel unit are assigned different optical properties tailored to their specific functions. The pixel portion has high color saturation and absorption characteristics for displaying images, while the transmissive portion has high transparency and low absorption characteristics for allowing ambient light to pass through. This local differentiation resolves the contradiction by ensuring each region excels at its designated task.
2Manufacturing precision
If the area of the pixel portion is increased to improve color reproducibility, then the color reproducibility is improved, but the light transmittance is decreased
Solution Approach 1:
The pixel unit is divided into distinct functional zones where the pixel portion and transmissive portion each occupy specific areas. This spatial segmentation enables the pixel portion to be sufficiently large for good color reproduction without preventing the transmissive portion from being large enough to maintain high overall light transmittance.
Solution Approach 2:
The contradiction between pixel portion area and light transmittance is resolved by considering the vertical dimension and optical path. The pixel portion can have adequate area for color display while the transmissive portion provides optical pathways that allow ambient light to pass through the display apparatus, effectively increasing light transmission without compromising color display area.
Data Source
AI summary
In a pixel unit and a display panel having the pixel unit, the pixel unit includes a pixel portion configured to display a color, and a transmissive portion configured to transmit light. The pixel portion is disposed at a central portion of the pixel unit and the transmissive portion is disposed at a peripheral portion adjacent to the central portion, or the transmissive portion is disposed at the central portion of the pixel unit and the pixel portion is disposed at the peripheral portion adjacent to the central portion.