Projector Screen Using Nickel-Chromium Alloy Fibers
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Solution Overview
Problem
Conventional projector screens face issues such as reduced image clarity, Moire patterns, uneven light reflection, environmental concerns due to chemical use, limited viewing angles, and poor durability, making them unsuitable for various projector types and environments.
Innovation Solution
A projector screen with a fine, uniform structure created using superfine nickel-chromium alloy fibers and single yarns woven through an up-and-down method, providing tight spacing, high density, and chemical-free production, ensuring even light absorption, antibacterial properties, and water cleanability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If woven screen material is used, then screen structure is formed, but image clarity is reduced and Moire pattern is generated
Solution Approach 1:
The patent changes the physical parameters of the screen material by using ultra-fine fibers (7 denier) with extremely small diameter (0.028mm) and high tensile strength. The weaving density is optimized to 22,000-30,000 ends per inch and 14,000-20,000 picks per inch, creating a fine mesh structure that allows light to pass through uniformly without generating Moire patterns, thereby maintaining image clarity while forming a stable screen structure.
Solution Approach 2:
The patent uses composite material construction by combining ultra-fine synthetic fibers with metallic coating layers. The base material consists of high-strength polyethylene or polypropylene fibers, which are then coated with reflective or absorptive metallic layers. This composite structure provides both mechanical strength for screen formation and optical properties for clear image projection without Moire interference.
2Adaptability or versatility
If plastic screen with wide viewing angle is used, then view angle is improved, but light reflection is reduced and picture quality is blurred
Solution Approach 1:
The patent applies local quality by using different metallic coatings on different regions or layers of the screen. The front surface uses reflective coating for high light concentration and brightness, while the back surface uses absorptive coating to control light transmission and viewing angle. This localized differentiation allows the screen to provide both wide viewing angle and high light reflection simultaneously.
Solution Approach 2:
The patent transitions from single-layer to multi-layer construction, adding dimensional complexity. The screen consists of multiple layers including reflective layer, absorptive layer, and protective layers, each with specific optical properties. This multi-dimensional structure enables light to be reflected and absorbed in different directions, achieving both wide viewing angle and high brightness.
3Illumination intensity
If glass bead screen with optical coating is used, then image brightness is increased, but reflection becomes too bright and glaring
Solution Approach 1:
The patent achieves homogeneity by using uniformly distributed ultra-fine fibers with consistent diameter and spacing throughout the screen material. The metallic coating is applied evenly across the fiber surface, creating uniform light reflection and absorption characteristics. This homogeneous structure provides consistent brightness without localized hot spots or glaring reflections.
Solution Approach 2:
The patent replaces expensive glass bead materials with more affordable ultra-fine synthetic fibers that can be mass-produced. The metallic coating is applied as a thin layer that can be easily manufactured and replaced if needed. This approach provides similar optical performance at lower cost with better durability and ease of maintenance.
4Reliability
If chemical spray is used in manufacturing, then screen properties are enhanced, but air pollution and environmental issues are caused
Solution Approach 1:
The patent replaces chemical spray processes with mechanical weaving and physical coating methods. The screen structure is formed by mechanically interlacing ultra-fine fibers in a loom, and the metallic coating is applied through physical vapor deposition or electrostatic spraying rather than chemical immersion. This mechanical approach maintains screen properties while eliminating harmful chemical emissions.
Solution Approach 2:
The ultra-fine fibers inherently possess antibacterial and dust-resistant properties due to their smooth surface and small diameter, eliminating the need for chemical treatments to achieve these functions. The metallic coating provides natural water repellency and ease of cleaning without requiring chemical sprays. The material serves its own protective functions without external chemical assistance.
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 delivers improved image quality with wide viewing angles, high contrast, and three-dimensional effects while being environmentally friendly and durable, suitable for multiple projector types and environments without causing pollution.
Implementation Method 1
The metallic property of the superfine nickel (Ni) chromium (Cr) alloy fiber allows the screen to maintain its flatness. The high density weaving method also produces very tight yarn spacing that promotes uniform light absorbance and reflection
Implementation Method 2
The high density weaving method also produces very tight yarn spacing that promotes uniform light absorbance and reflection
Implementation Method 3
an up-and-down weaving method is used to produce the screen that has very fine structure with very small and even yarn spacing
Implementation Method 4
The metallic property of the superfine nickel (Ni) chromium (Cr) alloy fiber allows the screen to maintain its flatness
Implementation Method 5
The high density weaving method also produces very tight yarn spacing that promotes uniform light absorbance and reflection and eliminates shadow and glares
Implementation Method 6
The superfine nickel (Ni) chromium (Cr) alloy fiber also retains the antibacterial property and dustproof effect
Implementation Method 7
The superfine nickel (Ni) chromium (Cr) alloy fiber also retains the antibacterial property and dustproof effect
Data Source
AI summary
The invention provides an improved projector screen structure. The improved screen structure is constituted by twist yarns from superfine single yarns and superfine nickel (Ni) chromium (Cr) alloy fiber. Through up-and-down weaving method for plain woven texture, all yarns are arranged in an organized and uniform fashion with tight spacing, so the fine screen constituted by such structure is suitable for any projectors that have different screen requirements and may be used to both front and back projection. The screen produced in this way can also deliver wide view angle, increased color saturation and contrast as well as better layer and three-dimensional effect. Moreover, the screen has zero radiation, low reflection, uniform light absorbance, flatness, antibacterial property, dustproof effect, water cleanability and durability, which are excellent attributes that traditional screens do not have. The present screen further improves comfort level for audiences and meets environmental requirements after disposal.