Transparent Display Panel Stacking for Brightness and Resolution
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Solution Overview
Problem
Existing transparent display panels struggle to achieve high resolution, high brightness, and high transparency simultaneously due to limitations in sub-pixel size and arrangement, leading to poor display quality.
Innovation Solution
A stacked display substrate design with pixel units arranged in a manner that increases sub-pixel area while maintaining a constant display area, utilizing top-emitting and bottom-emitting electroluminescent devices and optical clear resin bonding to enhance luminous brightness and display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If sub-pixel size is increased to improve brightness, then luminous brightness is improved, but display resolution deteriorates
Solution Approach 1:
The patent transitions from a single-plane sub-pixel arrangement to a stacked three-dimensional configuration. The first and second substrates are arranged in different spatial planes, with pixel units on each substrate containing sub-pixels that emit different colors. This vertical stacking allows sub-pixel area to be increased for higher brightness while maintaining fine horizontal pitch for high resolution.
Solution Approach 2:
The patent implements a nested structure where pixel units on the first substrate are positioned to correspond with pixel units on the second substrate. The sub-pixels are arranged such that red, green, and blue sub-pixels from different substrates are nested in a stacked configuration, with each sub-pixel's orthographic projection overlapping with others to form complete color pixels.
2Illumination intensity
If sub-pixel area is increased to improve brightness, then luminous brightness is improved, but transparent area ratio deteriorates
Solution Approach 1:
By moving the sub-pixel arrangement to a stacked three-dimensional configuration across multiple substrates, the patent increases sub-pixel area in the vertical dimension while maintaining a compact horizontal footprint. This allows the display area to be expanded without proportionally increasing the overall panel area, thereby preserving high transparent area ratio.
3Manufacturing precision
If pixel density is increased to improve resolution, then display resolution is improved, but manufacturing complexity deteriorates
Solution Approach 1:
The patent divides the display system into multiple independent substrates (first substrate and second substrate), each containing pixel units with sub-pixels. This segmentation allows each substrate to be manufactured separately with standardized processes, then assembled through bonding. The pixel defining layers and driving circuits are also segmented and positioned in specific regions to facilitate modular manufacturing.
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 improves display brightness and enhances display quality by increasing sub-pixel area and using inkjet printing for efficient bonding, achieving higher resolution and transparency.
Implementation Method 1
each first pixel unit comprises a first display unit and a first transparent unit, and each second pixel unit comprises a second display unit and a second transparent unit... the first display unit is configured to emit light toward the second substrate; the second display unit is located on a side of the second substrate facing the first display substrate, and the second display unit is configured to emit light toward the second substrate
Data Source
AI summary
A transparent display panel, a method for manufacturing the same, and a transparent display device are provided. the transparent display panel includes a first display substrate including: a first substrate and first pixel units thereon; and a second display substrate including: a second substrate and second pixel units thereon, the second pixel units are in one-to-one correspondence with the first pixel units, each first pixel unit includes a first display unit and a first transparent unit, and each second pixel unit includes a second display unit and a second transparent unit, an orthographic projection of the first display unit on the second substrate substantially coincides with that of the corresponding second display unit on the second substrate, and an orthographic projection of the first transparent unit on the second substrate substantially coincides with that of the corresponding second transparent unit on the second substrate.