Pixel Layout With Light-Transmissive Areas for Higher Transmittance
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Solution Overview
Problem
Existing display devices face challenges in enhancing light transmittance without compromising the structural integrity and functionality of pixel arrangements.
Innovation Solution
Incorporating light-transmissive areas between adjacent pixels, with symmetrical transistor areas overlapping light emission areas and spaced light-transmissive areas, and integrating lines within the transistor area to maintain structural symmetry and enhance light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-transmissive areas are incorporated between adjacent pixels, then light transmittance is enhanced, but structural integrity and pixel arrangement functionality may be compromised
Solution Approach 1:
The display device is segmented into distinct functional areas: transistor areas for circuit functionality and light-transmissive areas for optical performance. This segmentation allows each area to be optimized independently, with transistor areas maintaining structural integrity and light-transmissive areas maximizing light transmission, thereby resolving the contradiction between structural reliability and light transmittance enhancement
Solution Approach 2:
Different regions of the display device are assigned different functional qualities: transistor areas are designed with robust structural characteristics to ensure reliability, while light-transmissive areas are optimized for maximum light transmission. This local differentiation of quality allows the device to simultaneously achieve both structural integrity and enhanced light transmittance without compromising either function
2Reliability
If transistor areas overlap light emission areas, then electrical connectivity is maintained, but light-transmissive loss increases
Solution Approach 1:
The patent utilizes vertical stacking to create multiple dimensions for electrical connectivity. Transistor areas are positioned in overlapping regions where they can maintain electrical connections through vertical conductor paths while allowing light to pass through non-overlapping portions. This dimensional approach allows electrical connectivity to be achieved without blocking light transmission paths, thereby reducing light-transmissive loss while maintaining reliable electrical connections
3Manufacturing precision
If symmetrical transistor areas are used, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
While maintaining overall symmetrical pixel arrangements for manufacturing precision, the patent introduces asymmetric optimizations within transistor areas. By strategically positioning light-transmissive areas and adjusting transistor geometries in specific regions, the design achieves better light transmission without sacrificing the fundamental symmetry needed for precise manufacturing. This selective application of asymmetry within a symmetrical framework resolves the contradiction between manufacturing precision and device complexity
Data Source
AI summary
A display device is provided. The display device includes a first pixel including a first light emission area, a second pixel adjacent to the first pixel in a column direction, and including a second light emission area, a transistor area overlapped with each of the first pixel and the second pixel, and coupled to the first light emission area and the second light emission area, and a light-transmissive area adjacent to the transistor area in a row direction crossing the column direction.