Display Module Color-Changing Microcapsules for Integrated Black Effect
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display modules exhibit poor integrated black effect due to visible grayish regions when the screen is off, leading to noticeable borders and requiring complex adjustments when panel designs change, which is time-consuming and affects user experience.
Innovation Solution
A display module with a color-changing assembly comprising oppositely disposed substrates and microcapsule structures containing charged particles of different colors and charges, allowing voltage adjustment to align the grayscale of the cover region with the display panel, achieving consistent integrated black effect without redeveloping covers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing display modules use traditional cover structures, then the manufacturing process is simple, but the integrated black effect is poor with visible grayish regions and noticeable borders when the screen is off
Solution Approach 1:
The patent applies color-changing microcapsule structures containing charged particles of different colors (e.g., black and white) that can be electrically controlled to change the apparent color of the cover region. By adjusting the voltage applied to electrode layers, the charged particles move to different positions within the microcapsules, changing the reflected light color to match the display panel's grayscale when the screen is off, thereby achieving the integrated black effect.
Solution Approach 2:
The patent changes the electrical parameter (voltage) applied to the electrode layers to control the position of charged particles within microcapsule structures. By adjusting voltage values, the system dynamically changes the optical properties of the cover region to achieve grayscale matching with the display panel, resolving the integrated black effect issue without requiring physical reconfiguration of the cover structure.
2Adaptability or versatility
If the display panel design is changed, then new designs can be implemented, but the integrated black effect requires re-adjustment with long period
Solution Approach 1:
The patent implements a dynamic adjustment mechanism where the voltage applied to electrode layers can be programmatically controlled. When display panel design changes occur, the system can dynamically adjust the voltage values to different microcapsule structures to achieve grayscale matching for the new design, eliminating the need for time-consuming physical reconfiguration and enabling rapid adaptation to different panel designs.
Solution Approach 2:
The patent replaces the traditional mechanical/physical adjustment method (manually reconfiguring cover structures or repainting) with an electrical control system. By using voltage control to move charged particles within microcapsules, the system substitutes mechanical reconfiguration with electrical adjustment, significantly reducing the time and effort required to adapt to new display panel designs.
3Manufacturing precision
If voltage is adjusted in the color-changing assembly, then the grayscale of the cover region can be aligned with the display panel, but additional components are required
Solution Approach 1:
The patent integrates multiple functions into the cover structure by incorporating color-changing microcapsule structures and electrode layers directly into the cover assembly. This multi-functional design allows the cover to serve both as a protective structure and as an active component for grayscale adjustment, reducing the need for separate adjustment mechanisms and minimizing overall device complexity.
Solution Approach 2:
The patent introduces microcapsule structures containing charged particles as intermediary elements between the electrode layers and the external environment. These microcapsules act as mediators that convert electrical signals (voltage changes) into optical changes (color/grayscale changes), enabling precise grayscale control while maintaining a simple external interface and reducing the complexity of direct electrical-optical conversion systems.
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 provides a simple and efficient method to achieve desirable integrated black effect across various panel designs, reducing adjustment difficulty and time, while maintaining consistent grayscale and improving user experience.
Implementation Method 1
a plurality of microcapsule structures is between the first substrate and the second substrate; the plurality of microcapsule structures includes a plurality of first charged particles and a plurality of second charged particles; a color of a first charged particle is different from a color of a second charged particles, and a charge of the first charged particle is opposite to a charge of the second particle
Implementation Method 2
a first electrode layer is on a side of the first substrate facing the plurality of microcapsule structures; the first electrode layer includes a plurality of first electrodes; adjusting a voltage value of a first electrode in the color-changing assembly; changing positions of the plurality of first charged particles and the plurality of second charged particles
Data Source
AI summary
The present disclosure provides a display module, a driving method, and a display apparatus. The display module includes a display panel, a cover, and a color-changing assembly. The color-changing assembly is at least in the first region of the cover extended outside of the display panel; the color-changing assembly includes a first substrate, a second substrate, and a plurality of microcapsule structures; the plurality of microcapsule structures includes a plurality of first charged particles and a plurality of second charged particles; the first charged particle and the second charged particles have different colors and opposite charges; a first electrode layer including a plurality of first electrode is on a side of the first substrate facing the plurality of microcapsule structures; and an orthographic projection of one first electrode on the first substrate is overlapped with an orthographic projection of at least one microcapsule structure on the first substrate.