Liquid Crystal Panel Holder Segmentation for Prism Assembly Precision
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Solution Overview
Problem
Conventional liquid crystal projection apparatuses with image synthesization units face precision errors and deformations due to multiple assembling faces of liquid crystal panel holders, leading to light collimation issues and increased weight and cost.
Innovation Solution
A liquid crystal projection apparatus with a reduced number of parts, featuring a color synthesization prism and two independent liquid crystal panel holders with jointing sections on each prism pedestal, allowing for precise assembly and reduced weight and cost by eliminating the need for multiple assembling faces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If liquid crystal panel holders are fixed to multiple sides of prism pedestals, then the holders can be securely mounted, but assembly precision deteriorates due to deformation from multiple assembling faces
Solution Approach 1:
The patent divides the mounting function into separate components: prism pedestals with first jointing sections and liquid crystal panel holders with second jointing sections. This segmentation allows each component to be optimized independently, with the holders having only one assembling face to maintain precision while the pedestals provide stable mounting through their jointing sections.
2Adaptability or versatility
If three liquid crystal panel holders are used to fix liquid crystal panels, then all panels can be mounted, but device complexity and weight increase
Solution Approach 1:
The patent makes the liquid crystal panel holders universal by enabling them to fix multiple liquid crystal panels through their jointing sections that can accommodate different panel types (blue, green, red). This multi-functionality eliminates the need for separate holders for each panel, reducing overall device complexity while maintaining full panel mounting capability.
3Stability of the object's composition
If liquid crystal panel holders are fixed with multiple assembling faces, then secure mounting is achieved, but light collimation precision deteriorates
Solution Approach 1:
The patent segments the mounting structure into prism pedestals with first jointing sections and liquid crystal panel holders with second jointing sections. This segmentation ensures that holders have only one assembling face, preventing deformation that would affect light collimation, while the pedestals provide stable mounting through their jointing sections.
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 enhances assembly precision, reduces weight and cost, and minimizes light collimation distortions by independently fixing liquid crystal panel holders on each prism pedestal, resulting in improved image quality and reduced deformation risks.
Implementation Method 1
a color synthesization prism having an upper surface, a lower surface facing the upper surface, and three light-entering faces between the upper and lower surfaces
Implementation Method 2
The imaging lights of three primary colors led to the color synthesization prism 31 are synthesized by the color synthesization prism 31 into a single beam of colored imaging light
Implementation Method 3
three liquid crystal panels; and three liquid crystal panel mounting members securely fixing thereon the three liquid crystal panels
Data Source
AI summary
A liquid crystal projection apparatus having an image synthesizing unit including a color synthesization prism having an upper surface, a lower surface facing the upper surface, and three light incident faces between the upper and lower surfaces; an upper prism pedestal provided on the upper surface of the color synthesization prism; a lower prism pedestal provided on the lower surface of the color synthesization prism; an upper liquid crystal panel holder provided on the upper prism pedestal and having first jointing sections, a lower liquid crystal panel holder provided on the lower prism pedestal and having second jointing sections; three liquid crystal panels; and three liquid crystal panel mounting members securely fixing thereon the three liquid crystal panels, the three mounting members arranged on the respective three incident faces of the color synthesization prism joining the first jointing sections located in association with the respective incident faces to corresponding second jointing sections located in association with the corresponding incident faces.