Multi-view Display Color Filter Barrier Substrate
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Solution Overview
Problem
Multi-view image display devices using light shielding patterns suffer from reduced transmittance and color changes when viewed from different angles, leading to inferior brightness distribution and overlapping images.
Innovation Solution
A multi-view image display device with a liquid crystal display panel and a color filter barrier substrate, where the first color filter array and second color filter array are separated by a fixed distance, with specific color filter correspondences and light shielding patterns to prevent color changes and overlapping images, while increasing transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light shielding pattern is used to create multi-view display zones, then different images can be displayed at different viewing zones, but the transmittance of the display panel decreases and brightness distribution becomes inferior
Solution Approach 1:
The patent extracts the light shielding function from a traditional black matrix and relocates it to a separate barrier layer positioned between the display panel and viewer. This separation allows the color filter array to maintain full light transmission while the barrier layer selectively blocks light in specific viewing zones, resolving the contradiction between multi-view capability and brightness distribution.
Solution Approach 2:
The patent introduces a barrier layer as an intermediary component between the display panel and the viewer. This barrier layer acts as a mediator that selectively blocks light paths to create different viewing zones without interfering with the color filter array's light transmission, thereby maintaining brightness while enabling multi-view display.
2Adaptability or versatility
If a light shielding pattern is used to separate viewing zones, then different images can be displayed at different locations, but color changes occur in different locations for different viewers
Solution Approach 1:
The patent extracts the viewing zone separation function from the color filter array and places it in a dedicated barrier layer. This separation ensures that the color filter array maintains uniform color properties across all pixels, while the barrier layer handles the spatial separation of viewing zones, eliminating color inconsistencies.
Solution Approach 2:
The barrier layer serves as an intermediary that handles the spatial separation of viewing zones without interfering with the color properties of the display. By positioning the barrier layer in front of the color filter array, it selectively blocks light paths while allowing the color filters to maintain consistent color output across different viewing zones.
3Productivity
If the sub-pixel width in the first color filter array is reduced to half, then more sub-pixels can be arranged to display multiple images, but the manufacturing complexity increases
Solution Approach 1:
The patent segments the display into multiple image regions by arranging different sub-pixel configurations within the color filter array. By dividing the display area into distinct zones with specific sub-pixel patterns, it enables simultaneous display of multiple images while maintaining manageable manufacturing complexity through systematic segmentation.
Solution Approach 2:
The patent applies different sub-pixel configurations to different local regions of the display. Specific areas have sub-pixels arranged to display particular images, with varying widths and configurations optimized for their intended viewing zones. This local differentiation enables multi-image display while keeping the overall structure manufacturable through region-specific optimization.
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 distinct images to be displayed from different viewing angles without interference, prevents color changes, and enhances transmittance compared to traditional methods.
Implementation Method 1
a color filter barrier substrate inclusive of a second color filter array that is separated from the display panel with a fixed distance and has red, green and blue color filters
Implementation Method 2
a light shielding pattern that is formed between the color filters
Data Source
AI summary
A multi-view image display device adapted to display images different from each other using one screen of a display panel is disclosed. The multi-view image display device includes a display panel inclusive of a first color filter array having a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel that constitute a first image, and a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel that constitute a second image; and a color filter barrier substrate inclusive of a second color filter array that is separated from the display panel with a fixed distance and has red, green and blue color filters. The red color filter of the second color filter array corresponds to the first blue sub-pixel and the second green sub-pixel of the first color filter array. The green color filter of the second color filter array corresponds to the first red sub-pixel and the second blue sub-pixel of the first color filter array. The blue color filter of the second color filter array corresponds to the first green sub-pixel and the second red-sub-pixel of the first color filter array.