Transparent Display Subpixel Arrangement for Transparency and Definition
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Solution Overview
Problem
Transparent display devices face a trade-off between enhanced transparency and image definition, where increasing the light-transmitting region to improve transparency often results in a decrease in the number of pixels and a decline in image clarity.
Innovation Solution
The display device is designed with a specific arrangement of light-emitting and light-transmitting regions, where the light-transmitting region is strategically placed between groups of light-emitting regions, allowing for a higher ratio of transparency while maintaining image definition by optimizing the placement of sub-pixels and using a common output switch transistor to reduce the light-shielded area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the ratio of light-transmitting region is increased to enhance transparency, then transparency is improved, but the number of pixels is decreased and image definition is declined
Solution Approach 1:
The pixel structure is segmented into multiple sub-pixels (red, green, blue) with different visibility characteristics. The light-transmitting region is strategically positioned between specific sub-pixel groups rather than uniformly distributed, allowing selective transparency while preserving image definition through the remaining light-emitting regions.
Solution Approach 2:
Different regions of the display are assigned different functions: some areas have light-emitting regions for image display, while other areas have light-transmitting regions for transparency. The light-transmitting region is locally positioned between specific sub-pixel groups to optimize both transparency and image quality in different zones of the display.
2Illumination intensity
If the light-transmitting region is expanded to improve transparency, then transparency is enhanced, but the area available for light-emitting regions is reduced
Solution Approach 1:
The display structure transitions from a single-layer planar arrangement to a multi-layer configuration where light-emitting regions and light-transmitting regions are distributed across different spatial dimensions. This allows the light-transmitting region to occupy space without directly reducing the light-emitting region area in the same plane.
Solution Approach 2:
The display area is segmented into distinct functional zones: light-emitting regions for image display and light-transmitting regions for transparency. By dividing the display into these separate segments with specific spatial relationships, both transparency and light-emitting area are optimized without direct trade-off.
3Measurement precision
If multiple output switch transistors are used for each sub-pixel, then sub-pixel control precision is improved, but the number of transistors increases and light-shielded area increases
Solution Approach 1:
Adjacent sub-pixels share common output switch transistors, merging the functions of multiple transistors into fewer shared components. This reduces the total number of transistors and the associated light-shielded area while maintaining adequate control precision through the shared switching mechanism.
Solution Approach 2:
The output switch transistors serve multiple sub-pixels simultaneously, making them multi-functional components. A single transistor controls the light emission of multiple sub-pixels, reducing the overall transistor count while maintaining the ability to control each sub-pixel's light output.
Data Source
AI summary
A display device includes a plurality of pixels each having a plurality of light-emitting regions including at least a first light-emitting region of a first color, a second light-emitting region of a second color, and a third light-emitting region of a third color and a light-transmitting region. Visibility of the first color is higher than visibility of the second color. The plurality of light-emitting regions are divided into a first group including the first light-emitting region and a second group including the second light-emitting region. The first light-emitting region is adjacent to the second light-emitting region. The light-transmitting region is located between the first light-emitting region and the second light-emitting region. The light-transmitting region is not located in a region between light-emitting regions adjacent to each other in the first group and in a region between light-emitting regions adjacent to each other in the second group.