Double-Vision Color Filter Structure Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing double-vision display technologies face challenges in producing a color filter glass with a thickness of 100 µm, which is difficult to achieve in automatic mass production, especially when using liquid crystal displays with RGB sub-pixels, as it requires reducing the glass thickness significantly, making it impractical for efficient manufacturing.
Innovation Solution
A production method involving forming a slit grating on a glass substrate, attaching a transparent thin layer to create a cell structure, and patterning RGB sub-pixel columns on the surface opposite to the slit grating, using a glass or plastic film with a thickness of 70-200 µm, allowing for a double-vision display functionality while being compatible with existing LCD manufacturing processes and suitable for mass production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the glass thickness is reduced to 100 µm to achieve appropriate predetermined height, then the double-vision display performance is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The invention divides the color filter structure into two separate components: a standard-thickness color filter substrate and a separate slit grating plate. This segmentation allows each component to be manufactured independently with standard thicknesses, avoiding the need to produce fragile thin glass while maintaining the required predetermined height for double-vision display functionality.
Solution Approach 2:
The invention introduces a spacing structure (such as a spacer layer or mounting structure) as an intermediary element between the color filter substrate and the slit grating plate. This intermediary maintains the precise predetermined height without requiring the glass itself to be thin, thus solving both the optical performance requirement and the manufacturing difficulty.
2Manufacturing precision
If the glass thickness is significantly reduced to achieve the predetermined height, then the display functionality is improved, but the productivity deteriorates
Solution Approach 1:
By segmenting the color filter and slit grating into separate components with standard thicknesses, the invention enables parallel manufacturing processes. The color filter substrate can be produced using conventional LCD manufacturing lines while the slit grating plate can be manufactured separately, allowing both components to be produced efficiently at scale without the bottlenecks associated with thin glass production.
Solution Approach 2:
The invention performs preliminary actions by manufacturing the color filter substrate and slit grating plate separately using standard thicknesses before final assembly. This approach allows each component to be optimized and pre-manufactured using established mass production techniques, improving overall productivity compared to attempting to produce a single integrated thin glass structure.
3Manufacturing precision
If the glass thickness is reduced to 100 µm, then the crosstalk area is reduced, but the device complexity increases
Solution Approach 1:
The invention segments the optical system into a color filter substrate layer and a separate slit grating plate, each with standard thickness. This segmentation simplifies the manufacturing of individual components while the predetermined height between layers controls the optical performance and crosstalk characteristics, effectively managing device complexity through modular design.
Data Source
Figure 1~3
Figure 4~5
AI summary
A double-vision display, a double-vision color film structure and manufacturing method thereof are provided. The double-vision color film structure (10) includes a glass substrate (11), a slit grating (12), a transparent thin layer (13) and pixel patterns (14). The slit grating (12) is formed on the glass substrate (11). The transparent thin layer (13) arranged on the surface of the slit grating (12) and the glass substrate (11) form a cassette-to-cassette structure. The patterns of the pixel patterns (14) are formed on the transparent thin layer (13) and comprise odd sub-pixel columns and even sub-pixel columns.