Electrophoretic Display Sub-Pixel Structures for 3D Effects
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Solution Overview
Problem
Conventional electrophoretic displays struggle to effectively enhance three-dimensional (3D) effects due to limited color levels and insufficient pixel resolution, particularly with slower refresh rates and reduced image quality in time multiplexing technology, and insufficient pixel count in spatial multiplexing technology.
Innovation Solution
An electrophoretic display apparatus with sub-pixel structures, a color filter array, and an electrophoretic layer, where sub-pixel structures are divided into sub-pixel sub-structures applied different voltages and colors, and an image divider guides light to create different view angles, enhancing 3D effects by displaying images in various color levels and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If time multiplexing technology is used for 3D display, then 3D effect is achieved, but image quality deteriorates due to slower refresh rates of electrophoretic displays
Solution Approach 1:
The patent divides each pixel into multiple sub-pixel structures (e.g., first, second, third, and fourth sub-pixel structures), where each sub-pixel structure corresponds to different color filters (red, green, blue, cyan). This segmentation allows simultaneous display of multiple color components within a single pixel, enabling 3D effect enhancement without requiring rapid temporal switching that would compromise image quality on electrophoretic displays.
2Adaptability or versatility
If spatial multiplexing technology is used for 3D display, then 3D effect is achieved, but pixel resolution is reduced by half due to division into left-eye and right-eye pixels
Solution Approach 1:
The patent introduces a vertical dimension to color filtering by stacking multiple color filters (red, green, blue, cyan) above sub-pixel structures in the vertical direction. This allows the display to provide both 3D viewing angles and full color information simultaneously without sacrificing horizontal pixel resolution, as each pixel location contains multiple color-filtered sub-pixel structures rather than dividing pixels horizontally between left and right eyes.
3Device complexity
If conventional sub-pixel structures are used, then display is simple, but color levels are limited and 3D effects cannot be enhanced
Solution Approach 1:
The patent employs a composite structure combining multiple color filters (red, green, blue, cyan) with corresponding sub-pixel structures. Each sub-pixel structure is paired with specific color filters to create a composite pixel element that can display multiple color levels and provide stereoscopic 3D effects. This composite approach enables enhanced 3D capability while maintaining a relatively compact 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 significantly enhances the three-dimensional effect of images by allowing for richer color variations and improved pixel resolution, enabling a more immersive 3D experience without reducing image quality.
Implementation Method 1
electrophoretic display apparatus includes a first substrate, a plurality of sub-pixel structures, a color filter array, and an electrophoretic layer
Data Source
AI summary
An electrophoretic display apparatus includes a first substrate, a plurality of sub-pixel structures, a color filter array, and an electrophoretic layer. The sub-pixel structures are disposed on the first substrate, and each of the sub-pixel structures includes a plurality of sub-pixel sub-structures. The color filter array is disposed above the sub-pixel structures, and includes a plurality of filter units. The filter units are divided into a plurality of groups having different colors, and the filter units belonging to the groups having different colors are alternately disposed above the sub-pixel structures. Each of the filter units corresponds to the sub-pixel sub-structures of at least one sub-pixel structure, and at least two of the sub-pixel sub-structures of the same sub-pixel structure are adapted to be applied different voltages. The electrophoretic layer is disposed on the sub-pixel structures.