Viewing Angle Adjusting Display Structure with Electrophoretic Shielding
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Solution Overview
Problem
Current display technologies lack effective means to adjust the viewing angle, making it inconvenient for users to switch between private and public viewing modes, as they cannot easily control who sees the content being displayed.
Innovation Solution
A display structure with pixel areas that include a light emitting part and a viewing angle adjustment area, featuring a light shielding part made of black electrophoretic particles and an adjusting electrode that forms an electric field to move the particles between narrow and wide viewing angle positions, allowing the user to adjust the field of view by controlling light shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If no viewing angle adjustment mechanism is provided, then the display structure is simple, but the usability is poor as users cannot switch between private and public viewing modes
Solution Approach 1:
The light shielding part is designed to be movable rather than fixed, allowing it to dynamically adjust its position between a first position (narrow viewing angle) and a second position (wide viewing angle). This dynamic adjustment enables the display to adapt to different usage scenarios, resolving the contradiction between operational ease and device complexity by implementing a simple two-position adjustment mechanism.
Solution Approach 2:
The viewing angle of the display is adjusted by changing the position parameter of the light shielding part. By moving the light shielding part between two specific positions, the display can switch between narrow and wide viewing angles. This parameter-based adjustment approach maintains simplicity while providing functional flexibility.
2Adaptability or versatility
If a light shielding part is added to adjust viewing angle, then viewing angle adjustability is improved, but the device complexity increases
Solution Approach 1:
The display structure is segmented into functional regions: a display region and a viewing angle adjustment region. The light shielding part is specifically positioned in the viewing angle adjustment region, which is distinct from the main display area. This segmentation allows the viewing angle adjustment function to be added without significantly complicating the overall display structure, as the adjustment mechanism is localized to a specific region.
Solution Approach 2:
The light shielding part acts as an intermediary element between the light emitting part and the external environment. By introducing this intermediate component, the patent achieves viewing angle adjustment without fundamentally redesigning the core display structure. The light shielding part mediates the light output, providing adaptability while maintaining structural simplicity.
3Adaptability or versatility
If additional privacy films are used to achieve viewing angle control, then viewing angle adjustment is possible, but the device complexity and cost increase
Solution Approach 1:
Instead of adding external privacy films as a separate component, the patent extracts the viewing angle control function directly into the display structure by integrating the light shielding part. This extraction eliminates the need for additional privacy films, reducing both device complexity and cost while maintaining the privacy viewing capability.
Solution Approach 2:
The viewing angle adjustment function is merged with the intrinsic structure of the display device by incorporating the light shielding part as an integrated component. This merging approach combines the display function and viewing angle control into a single unified structure, avoiding the need for separate privacy films and reducing 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
Enables convenient switching of the viewing angle by moving the light shielding part between narrow and wide viewing angle positions, improving user experience by allowing for private viewing when needed and wider visibility when desired, without requiring additional privacy films, thus enhancing the usability and design of terminal equipment.
Implementation Method 1
The light shielding part is black electrophoretic particles, the adjusting electrode comprises a first electrode plate and a second electrode plate, wherein the first electrode plate and the second electrode plate are disposed opposite each other, and wherein the black electrophoretic particles are disposed between the first electrode plate and the second electrode plate.
Implementation Method 2
An adjusting electrode is disposed corresponding to the light shielding part and configured to form an electric field, the light shielding part is driven by the electric field to move between the narrow viewing angle position and the wide viewing angle position.
Implementation Method 3
The first electrode plate and the second electrode plate are horizontally disposed, a horizontal electric field is formed between the first electrode plate and the second electrode plate, and the horizontal electric field drives the black electrophoretic particles to move in a horizontal direction.
Data Source
AI summary
A display structure comprises pixel areas. At least one side of each of the pixel areas is provided with a viewing angle adjustment area. Each of the pixel areas is provided with light emitting part for emitting light, the viewing angle adjusting part includes a light shielding part and an adjusting electrode. The light shielding part has a narrow viewing angle position for shielding light from light emitting part and a wide viewing angle position for avoiding light from the light emitting part. The adjusting electrode is disposed corresponding to the light shielding part. The adjusting electrode forms an electric field, to drive the light shielding part is driven by the electric to move between the narrow viewing angle position and the wide viewing angle position.