Transparent Display Panel Pin Holes Light Blocking Member
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Solution Overview
Problem
Conventional multilayer display devices have low transmissivity, leading to excessive power consumption and rapid aging of light sources due to heat generation, making it difficult to display clear three-dimensional images.
Innovation Solution
An image display device with a transparent first display panel featuring pin holes for high transmissivity and a light-blocking member to prevent light leakage between panels, along with a non-reflective layer on the second display panel to enhance contrast, eliminating the need for additional light sources and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light source is mounted between the first display panel and the second display panel to increase the luminance of the rear display panel, then the brightness of the rear display panel is improved, but power consumption increases excessively and the light source ages rapidly due to heat generation
Solution Approach 1:
The patent removes the light source from the conventional multilayer display structure. Instead of mounting a light source between the first and second display panels, the invention uses the natural light emitted by the first display panel (which has high transmissivity greater than 10%) to illuminate the second display panel from the rear, thereby eliminating the need for an additional light source and reducing power consumption
Solution Approach 2:
The patent changes the transmissivity parameter of the first display panel to be greater than 10%, which allows sufficient light to pass through to illuminate the second display panel without requiring an additional light source. This parameter change enables the system to achieve the desired brightness while reducing power consumption
2Illumination intensity
If a light source is mounted between the first display panel and the second display panel to increase the luminance of the rear display panel, then the brightness of the second display panel is improved, but the light source ages rapidly due to heat generation
Solution Approach 1:
The patent removes the light source from the conventional multilayer display structure. Instead of mounting a light source between the first and second display panels, the invention uses the natural light emitted by the first display panel (which has high transmissivity greater than 10%) to illuminate the second display panel from the rear, thereby eliminating the need for an additional light source and reducing power consumption
Solution Approach 2:
The patent converts the potentially harmful effect of requiring an additional light source (which would generate heat and reduce reliability) into a benefit by utilizing the light already emitted by the first display panel. The high transmissivity of the first panel allows this existing light to effectively illuminate the second panel without introducing any heat-generating components
3Loss of information
If the transmissivity of the display panels is low, then the image clarity is improved, but additional light sources are required which increase power consumption
Solution Approach 1:
The patent changes the transmissivity parameter of the first display panel to be greater than 10%, which allows sufficient light to pass through to illuminate the second display panel without requiring an additional light source. This parameter change enables the system to achieve the desired brightness while reducing power consumption
Solution Approach 2:
The patent utilizes the continuous light emission from the first display panel to illuminate the second display panel. By maintaining the natural light emission process and enhancing its effectiveness through high transmissivity, the system achieves continuous illumination without requiring additional energy-consuming light sources
4Illumination intensity
If the gap between the first display panel and the second display panel is not sealed, then light can be transmitted through the gap from outside which reduces the contrast ratio of the first display panel
Solution Approach 1:
The patent introduces a light-blocking member as an intermediary element positioned between the first and second display panels. This member selectively blocks external light from entering the gap and reducing contrast, while allowing the useful light from the first panel to pass through to illuminate the second panel
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 provides a clear composite image with improved contrast and reduced power consumption by maximizing transmissivity and minimizing light reflection, while preventing light source aging.
Implementation Method 1
the first display panel includes pin holes, through which light is optically transmitted, formed in respective pixels
Implementation Method 2
a light-blocking member for sealing a gap defined between the first display panel and the second display panel such that light is prevented from being transmitted through the gap
Implementation Method 3
The second display panel may include a non-reflective layer provided on the surface thereof that faces the first display panel for reducing the reflectance of light incident through the pin holes formed in the first display panel
Data Source
AI summary
An image display device for displaying a composite image, includes a transparent first display panel located in front of eyes of viewers for displaying a first image and a second display panel disposed so as to be spaced apart from the first display panel for displaying a second image, the image display device being configured to display a composite image obtained by composing the first image displayed by the first display panel and the second image displayed by the second display panel, the composite image being viewed.