Display Front Panel Infrared Path Color Matching
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Solution Overview
Problem
Existing display devices embedding infrared devices suffer from impaired appearance due to the transmitting area for infrared light, which disrupts the unity of color and increases costs, as the infrared filter is expensive and differs in optical characteristics from the visible light path, resulting in uneven color and poor appearance characteristics.
Innovation Solution
A front panel design for display devices incorporating a transparent plate with a decorative layer on the back surface of the non-display region, excluding the infrared optical path areas, and using first and second polarizing plates to polarize visible light, ensuring the optical characteristics of the infrared and visible light paths coincide, thus matching the color of the display and non-display regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transmitting area is provided on the front panel for infrared light transmission, then infrared monitoring function is enabled, but appearance characteristics deteriorate due to color non-uniformity and visible boundaries
Solution Approach 1:
The patent applies different optical properties to different regions of the front panel. The transmitting area is designed with specific optical characteristics that allow infrared transmission while matching the visual appearance of the decorative print area, creating local quality differentiation that solves both functional and aesthetic requirements
Solution Approach 2:
The patent utilizes optical filtering and polarization effects to control the appearance of the transmitting area. By adjusting the optical properties of the front panel in the transmitting region, the color and visual characteristics are made to match the decorative print area, eliminating visible boundaries while maintaining infrared transmission capability
2Shape
If an infrared filter is used to block visible light in the transmitting area, then the infrared device becomes invisible, but costs increase and optical characteristics differ from visible light path
Solution Approach 1:
The patent makes the front panel serve multiple functions: it acts as both a decorative cover and an optical element for infrared transmission. The polarizing plate and optical filter work together to provide both visible light blocking and infrared transmission in a single integrated structure, eliminating the need for separate expensive infrared filters
Solution Approach 2:
The patent changes the optical parameters of the front panel by incorporating polarizing plates with specific polarization axes and optical filters with specific transmission characteristics. This allows the same material to block visible light while transmitting infrared light, achieving the desired effect without expensive specialized filters
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
This solution enhances the appearance characteristics by reducing costs and achieving unity of color between the display and non-display regions, improving the overall appearance of the display device while maintaining effective infrared monitoring capabilities.
Implementation Method 1
a first polarizing plate polarizing visible light provided at a front surface side or a back surface side of the transparent plate
Data Source
AI summary
There is provision of a front panel for a display device including a display region and a non-display region adjacent to the display region. The front panel for the display device includes a transparent plate, a decorative layer formed on an area of a back surface of the transparent plate corresponding to the non-display region except for an area of an optical path of infrared light, and a first polarizing plate polarizing visible light provided at a front surface side or a back surface side of the transparent plate, which is disposed at a region including the optical path of infrared light.