Rear Imaging Unit with Light Transmissive Sections for Video Conferencing
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Solution Overview
Problem
Conventional image display devices with integrated imaging units face challenges in manufacturing cost and light condensation efficiency, often requiring precise lenses and resulting in discomfort due to users not facing the camera directly, which hinders the adoption of video conference systems.
Innovation Solution
An image display device with an imaging unit positioned at the rear side, featuring light transmissive sections within the display area that condense light to the imaging unit, eliminating the need for precise lenses and allowing direct user imaging without increasing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an imaging unit is placed outside the display region, then the imaging function can be added to the image display device, but the user's face does not face the imaging device causing discomfort
Solution Approach 1:
The imaging unit is nested within the display region by positioning it behind the display panel, allowing the camera to be integrated into the device structure without occupying additional external space. This enables the imaging function while maintaining proper facial orientation during video calls.
Solution Approach 2:
The imaging unit is relocated from the traditional external side placement to the rear side of the display panel, utilizing the depth dimension of the device structure. This dimensional change allows the camera to capture the user's face directly while remaining integrated within the device boundaries.
2Measurement precision
If precise lenses are used for light condensation, then imaging quality improves, but manufacturing cost increases
Solution Approach 1:
The patent extracts the light condensation function from complex lens systems and implements it through a simplified light guide structure with reflective surfaces. This extraction of the essential function removes the need for precise lenses while maintaining imaging quality, thereby reducing manufacturing costs.
Solution Approach 2:
The mechanical lens system is replaced with an optical guide structure that uses reflective surfaces and light piping to achieve light condensation. This substitution eliminates complex mechanical lens assemblies while maintaining the necessary light gathering and focusing capabilities for quality imaging.
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 configuration enables efficient light condensation and accurate user imaging, reducing manufacturing costs while enhancing user comfort and image quality by allowing direct user-facing imaging, thus improving the usability of video conference systems.
Implementation Method 1
Light transmissive sections are provided in a plurality of pixels. The light transmissive sections are configured to separately receive light incident upon the image display unit, and pass the received light to the imaging unit
Data Source
Figure 1A~1C
Figure 2
Figure 3A~3B
AI summary
An image display unit (10) comprises a display area including pixels, and an imaging unit (20) disposed at its rear side behind the display area. Light transmissive sections (30) are located within the display area and correspond to the pixels. The light transmissive sections are configured to separately receive light incident upon the image display unit, and pass the received light to the imaging unit.