Electrochromic Display Panel with Colored Charged Particles
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Solution Overview
Problem
Current electrochromic display panels are limited in their ability to display white or black colors effectively, lacking diversity in color representation.
Innovation Solution
A display panel comprising an electrochromic layer and an electrolyte layer with colored charged particles, where the electrochromic layer becomes transparent under an external electric field, allowing the colored charged particles to migrate and display colors such as pure white or black, utilizing anode or cathode allochroic materials and pixel barrier walls to control voltage differences and particle movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional electrochromic materials are used for display, then energy conservation and no backlight are achieved, but color representation quality deteriorates
Solution Approach 1:
The patent combines electrochromic materials with colored charged particles (white or black) to create a composite display system. The electrochromic layer undergoes oxidation-reduction reactions to change transparency, while the colored particles provide the actual color display, achieving both energy efficiency and high-quality color representation.
Solution Approach 2:
The patent utilizes the color change properties of colored charged particles (white or black) that migrate to the electrochromic layer under electric field control. When the electrochromic layer becomes transparent, the colors of the particles are displayed, enabling high-quality color representation while maintaining energy efficiency.
2Adaptability or versatility
If electrochromic layer becomes transparent to display colors, then color diversity is improved, but control precision over particle position must be maintained
Solution Approach 1:
The patent employs dynamic control of the electrochromic layer's transparency state to manage particle position. By switching between transparent and colored states, the system dynamically controls which particles are visible, achieving both color diversity and precise positional control through temporal separation of display states.
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 enables the display panel to showcase a range of colors, including pure white and black, thereby increasing color diversity and improving color representation compared to existing technologies.
Implementation Method 1
An electrochromic phenomenon refers to a fact that under an effect of an external electric field, an electrochromic material undergoes oxidation or reduction, which leads to its reversible change between light transmission and light reflection
Implementation Method 2
the colored charged particles in the display panel migrating to a side close to the electrochromic layer under an effect of an electric field force
Data Source
AI summary
A display panel, a display method thereof and a display device are disclosed. The display panel includes an electrochromic layer (101) and an electrolyte layer (102) arranged in a stacked manner, and at least one kind of colored charged particles (103) being provided in the electrolyte layer (102). While the electrochromic layer (102) is transparent, the display panel displays color of the colored charged particles (103). The display panel may further display the color of the colored charged particles, which increases diversity of the colors displayed by the display panel.