Dual Chromogenic Layer Display Substrate for Multi-Mode Operation
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Solution Overview
Problem
Conventional OLED display substrates are limited in their ability to perform multiple display tasks such as three-dimensional and two-side displays due to their one-sided light emission, which restricts their functionality.
Innovation Solution
A display substrate design featuring a first and second chromogenic layer with light emitting elements arranged in specific configurations, allowing for reversible transitions between light transmitting and blocking states, enabling three-dimensional, two-dimensional, and two-side display modes by controlling the emission and transmission of light through inter-column gap regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional OLED display substrates use one-sided light emission structure, then the device structure is simple, but the display functionality is limited
Solution Approach 1:
The display substrate is segmented into multiple functional layers: a first chromogenic layer for blocking light in one direction, light emitting elements arranged in columns with inter-column gap regions, and a second chromogenic layer for blocking light in the opposite direction. This segmentation allows independent control of light transmission in different directions, enabling multiple display modes (2D, 3D, two-side) from a single substrate structure.
Solution Approach 2:
The invention transitions from conventional one-sided light emission to multi-directional light control by introducing the second chromogenic layer on the opposite side of the first chromogenic layer. This dimensional expansion allows light to be controlled and emitted from both sides of the substrate, fundamentally changing the display functionality from single-sided to multi-sided operation.
2Adaptability or versatility
If multiple display substrates are used for different display modes, then each display mode has optimized performance, but material usage and costs increase
Solution Approach 1:
A single display substrate is designed to perform multiple display functions including two-dimensional display, three-dimensional display, and two-side display modes. The substrate incorporates controllable chromogenic layers and strategically arranged light emitting elements that can be activated or deactivated based on the desired display mode, making one substrate universally capable of multiple functions that previously required separate dedicated substrates.
Solution Approach 2:
The invention merges the functionality of multiple separate display substrates (2D display substrate, 3D display substrate, two-side display substrate) into a single integrated substrate. By combining the first chromogenic layer, second chromogenic layer, and light emitting elements with inter-column gap regions into one structure, the patent eliminates the need for multiple separate substrates, reducing material consumption and overall system complexity.
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 substrate can perform multiple display functions, including two-dimensional, three-dimensional, and two-side displays, reducing material usage and costs by integrating these capabilities into a single substrate.
Implementation Method 1
a first chromogenic layer; a plurality of first columns of light emitting elements on the first chromogenic layer; a second chromogenic layer on a side of the plurality of first columns of light emitting elements away from the first chromogenic layer
Implementation Method 2
a plurality of first columns of light emitting elements on the first chromogenic layer; a plurality of second columns of light emitting elements on a side of the second chromogenic layer away from the first chromogenic layer
Data Source
AI summary
A display substrate is provided. The display substrate includes a first chromogenic layer; a plurality of first columns of light emitting elements on the first chromogenic layer; a second chromogenic layer on a side of the plurality of first columns of light emitting elements away from the first chromogenic layer; and a plurality of second columns of light emitting elements on a side of the second chromogenic layer away from the first chromogenic layer. The plurality of first columns of light emitting elements are arranged along substantially a same direction as the plurality of second columns of light emitting elements. The plurality of second columns of light emitting elements are spaced apart by a plurality of inter-column gap regions respectively. A respective one of the plurality of first columns of light emitting elements is at least partially in a respective one of the plurality of inter-column gap regions.