Display Apparatus Sub-Pixel Segmentation for 3D Image Resolution
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Solution Overview
Problem
Conventional display technologies struggle to effectively enhance three-dimensional (3D) effects in images due to limitations in sub-pixel resolution and color levels, particularly with electrophoretic displays having slower refresh rates and reduced image quality in three-dimensional display technologies.
Innovation Solution
A display apparatus comprising sub-pixel structures with multiple sub-pixel sub-structures, a color filter array with alternating color filter units, and an image divider such as a lenticular film, which guides light from different sub-pixel sub-structures towards different directions, allowing for enhanced three-dimensional effects by displaying images in various color levels and view angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional sub-pixel structures with single color level are used, then device complexity is reduced, but three-dimensional effects and image richness are insufficient
Solution Approach 1:
Each sub-pixel structure is divided into multiple sub-pixel sub-structures (first, second, and third sub-pixel sub-structures) that can display different color levels independently. This segmentation allows the display to present multiple color levels within a single sub-pixel, enhancing three-dimensional effects and image richness without requiring a completely new display architecture.
Solution Approach 2:
The patent introduces a temporal dimension by alternating the visibility of different sub-pixel sub-structures at different times. The first sub-pixel sub-structure is visible during a first time period, the second during a second time period, and the third during a third time period. This time-multiplexing approach allows multiple color levels to be displayed sequentially, creating the perception of three-dimensional effects and rich color gradations.
2Adaptability or versatility
If time multiplexing technology is used for 3D display, then view angle differentiation is achieved, but refresh rate requirements are not met by electrophoretic displays
Solution Approach 1:
The sub-pixel structure is segmented into multiple sub-pixel sub-structures that can be independently controlled. This segmentation allows the display to present different color levels at different times within a single refresh cycle, achieving view angle differentiation without requiring high refresh rates. The first, second, and third sub-pixel sub-structures are activated in sequence during each refresh period, enabling 3D effects at electrophoretic display refresh rates.
Solution Approach 2:
The patent employs periodic action by alternating the activation of different sub-pixel sub-structures in a repeating cycle. During each refresh period, the first sub-pixel sub-structure is activated, then the second, then the third, creating a periodic sequence that presents multiple color levels. This periodic activation pattern allows the display to maintain electrophoretic refresh rates while achieving three-dimensional image presentation through temporal multiplexing.
3Adaptability or versatility
If spatial multiplexing technology divides pixels into left-eye and right-eye pixels, then 3D image presentation is enabled, but image resolution is reduced by half
Solution Approach 1:
Instead of dividing pixels into separate left-eye and right-eye pixel sets, the patent segments each sub-pixel into multiple sub-pixel sub-structures that display different color levels. This segmentation approach maintains full pixel resolution while achieving 3D effects through temporal multiplexing of color levels within each sub-pixel, avoiding the resolution loss associated with conventional spatial multiplexing.
Solution Approach 2:
The patent transitions from spatial multiplexing (dividing pixels across space) to temporal multiplexing (activating sub-pixel sub-structures across time). By displaying different color levels at different time periods within the same spatial location, the system achieves 3D image presentation without reducing resolution. The first, second, and third sub-pixel sub-structures are activated sequentially in time rather than being distributed across space, preserving full image resolution.
4Device complexity
If electrophoretic display is used, then display technology is simplified, but refresh rate is slow affecting 3D display performance
Solution Approach 1:
The sub-pixel structure is divided into multiple independently controllable sub-pixel sub-structures. This segmentation allows the display to present different color levels at different times within each refresh cycle, achieving three-dimensional effects without requiring high refresh rates. The temporal multiplexing of color levels compensates for the slower refresh rate of electrophoretic displays.
Solution Approach 2:
The patent employs periodic action by sequentially activating different sub-pixel sub-structures (first, second, and third) during each refresh period. This periodic activation pattern allows electrophoretic displays to achieve three-dimensional image presentation at their inherent refresh rates by temporal multiplexing color levels, maintaining the simplicity of electrophoretic technology while overcoming the slow refresh rate limitation.
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 sense of images by enabling the display of rich, detailed three-dimensional content with improved color gradations and view angles, overcoming limitations in conventional technologies.
Implementation Method 1
The image divider is a lenticular film comprising a plurality of lenticulars arranged along the arrangement direction
Data Source
AI summary
A display apparatus includes a first substrate, a plurality of sub-pixel structures, a color filter array, and a display layer. The sub-pixel structures are disposed on the first substrate, and each of the sub-pixel structures includes at least two 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 at least two sub-pixel sub-structures of at least one sub-pixel structure, and the at least two sub-pixel sub-structures of the same sub-pixel structure are adapted to be applied different voltages. The display layer is disposed on the sub-pixel structures.