Display Device with Segmented Polarization and Scattering Layers
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Solution Overview
Problem
Display devices, such as liquid crystal display devices, lack designability in their non-display state as they typically present a black screen, limiting their aesthetic and functional versatility.
Innovation Solution
A display device configuration that includes a display panel, a linearly polarized light reflection layer, and a light scattering layer, with these components divided into regions to achieve multiple operational states, allowing for display and non-display regions, as well as different reflection and scattering properties, enabling additional display functionality while maintaining designability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a half mirror layer is added to the front surface of a display device to create mirror display functionality, then the designability in non-display state is improved, but the ability to provide additional display content is limited
Solution Approach 1:
The display device is divided into multiple functional layers including a display panel, linearly polarized light reflection layer, and light scattering layer. Each layer can be independently controlled to create different display modes (mirror mode, additional display mode, full display mode), allowing the device to transition between aesthetic presentation and functional display states.
Solution Approach 2:
The display device integrates multiple functions into a single system: it can function as a conventional display, a mirror surface, or an additional display device. The light scattering layer and linearly polarized light reflection layer work together to enable these multiple operational states, making the device versatile for different usage scenarios.
2Device complexity
If the display device uses a single uniform state across the entire surface, then the structure is simple, but it cannot provide both display and non-display regions simultaneously
Solution Approach 1:
The display surface is segmented into multiple controllable regions that can independently display different content or remain in non-display state. The light scattering layer can be divided into light scattering regions and light transmitting regions, allowing simultaneous operation of display and non-display areas.
Solution Approach 2:
Different regions of the display device can have different optical properties. The linearly polarized light reflection layer can reflect light in certain regions while transmitting light in others, and the light scattering layer can scatter light locally while transmitting light in other areas, creating localized display effects.
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 configuration allows for enhanced designability by providing additional display options and matching the surrounding environment, while ensuring the device can display images or patterns in various states, including when not actively displaying content.
Implementation Method 1
a linearly polarized light reflection layer, and a light scattering layer, the display panel, the linearly polarized light reflection layer, and the light scattering layer being configured to satisfy at least two states selected from the group consisting of: (1) a state where the display panel includes a display surface with divided regions involving a display region emitting display light and a non-display region emitting no display light, (2) a state where the linearly polarized light reflection layer includes divided regions involving a first reflection region reflecting first linearly polarized light and a second reflection region reflecting second linearly polarized light having a different wavelength from the first linearly polarized light
Implementation Method 2
a state where the light scattering layer includes divided regions involving a light scattering region scattering incident light and a light transmitting region transmitting incident light
Data Source
AI summary
In the display device, a display panel, a linearly polarized light reflection layer, and a light scattering layer are configured to satisfy at least two states selected from the group consisting of: a state where the display panel includes a display surface with divided regions involving a display region and a non-display region, a state where the linearly polarized light reflection layer includes divided regions involving first and second reflection regions, and a state where the light scattering layer includes divided regions involving a light scattering region and a light transmitting region. At least two regions are superimposed on each other. The regions are selected from the group consisting of one of the display region and the non-display region, one of the first and second reflection regions, and one of the light scattering region and the light transmitting region and satisfy the at least two states.