Transparent Display Assembly Electrochromic Light Shielding
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Solution Overview
Problem
Existing transparent display technologies face challenges in outdoor visibility due to low transmittance, which limits their application and user experience.
Innovation Solution
A display assembly comprising a liquid crystal layer between two substrates, with electrochromic and light shielding portions, and electrode layers that adjust liquid crystal states to control light transmission, allowing for high transmittance and grayscale display without the need for polarizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional liquid crystal screen is used, then display function is achieved, but transmittance is low and outdoor visibility is poor
Solution Approach 1:
The patent removes the polarizer from the conventional liquid crystal display structure. By extracting this component, the display achieves higher transmittance and better outdoor visibility while maintaining the liquid crystal display function through an alternative optical path design involving the electrochromic layer and specific liquid crystal alignment
Solution Approach 2:
The patent combines liquid crystal material with electrochromic material in a single display structure. This composite approach allows the display to achieve both the liquid crystal's optical control capabilities and the electrochromic layer's high transmittance characteristics, resolving the contradiction between display function and transmittance
2Illumination intensity
If transparent display is implemented, then outdoor visibility is improved, but transmittance control for grayscale display becomes difficult
Solution Approach 1:
The patent employs dynamic control of the liquid crystal molecules' orientation through applied voltage. By dynamically adjusting the liquid crystal alignment angle, the system can control the amount of light passing through the electrochromic layer, enabling grayscale display while maintaining high transmittance and outdoor visibility
Solution Approach 2:
The patent changes the optical parameters of the liquid crystal layer by controlling molecular orientation through voltage. This parameter change allows precise control over light transmission intensity, enabling grayscale display functionality in the transparent display structure
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 ensures high transmittance and low-cost, simple structure for transparent displays, enabling effective outdoor visibility and various grayscale levels without polarizers, enhancing user experience.
Implementation Method 1
a liquid crystal layer between the first substrate and the second substrate; a first electrode layer and a second electrode layer are arranged between the first substrate and the second substrate and configured to adjust states of liquid crystal molecules in the liquid crystal layer
Implementation Method 2
a first part, including a first light shielding portion, a second light shielding portion and an electrochromic portion; the electrochromic portion includes an electrochromic layer, a third electrode layer and a fourth electrode layer
Data Source
AI summary
A display assembly and an electronic apparatus are provided. The display assembly includes: a first substrate and a second substrate opposite to each other; a liquid crystal layer between them; a first part including a first light shielding portion, a second light shielding portion and an electrochromic portion; and a second part, including a third light shielding portion, a fourth light shielding portion and a transparent portion, wherein the first part is arranged on a side of the first substrate facing towards the second substrate; wherein the second part is arranged on a side of the second substrate facing towards the first substrate; and wherein a first electrode layer and a second electrode layer are arranged between the first substrate and the second substrate and configured to adjust states of liquid crystal molecules in the liquid crystal layer.