TV Display Pixel Lighting for Better Video Conferencing
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Solution Overview
Problem
The challenge of inadequate lighting in residential settings for video conferencing and video watch parties using televisions, which results in participants appearing poorly lit on the display, is addressed by utilizing the television's pixels as a source of adjustable lighting to enhance illumination.
Innovation Solution
The system adjusts the luminance and color values of the television's pixels to selectively illuminate subjects using either LED backlight intensity adjustments for LCD TVs or independent pixel luminance adjustments for OLED TVs, optionally shrinking the displayed image to create a border of white pixels for additional lighting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional lighting systems are added to illuminate subjects in video conferencing, then illumination quality improves, but device complexity and cost increase
Solution Approach 1:
The television display serves dual functions: displaying video content and providing illumination for the subject. By utilizing the existing display pixels for both purposes, the system eliminates the need for separate lighting equipment, reducing device complexity while maintaining illumination quality
Solution Approach 2:
The display system illuminates the subject using its own pixels, making the system self-sufficient. The television screen provides lighting for the person being filmed without requiring external lighting sources, thereby simplifying the overall system configuration
2Illumination intensity
If display brightness is increased to improve subject lighting, then illumination intensity improves, but image quality and color accuracy deteriorate
Solution Approach 1:
The display is divided into two functional zones: pixels displaying video content and pixels providing illumination. This segmentation allows independent optimization of each function, enabling the display to maintain image quality in the video area while providing sufficient brightness in the illumination area
Solution Approach 2:
Different regions of the display serve different purposes with different quality requirements. The video display region maintains high color accuracy and image quality, while the border region used for illumination prioritizes brightness, creating local quality optimization throughout the system
3Illumination intensity
If the display area is reduced to create border pixels for lighting, then illumination coverage improves, but visible display area decreases
Solution Approach 1:
The system dynamically adjusts the amount of border pixels used for illumination based on lighting requirements. When additional lighting is needed, more border pixels are activated; when lighting is sufficient, fewer border pixels are used, allowing flexible adaptation to different environmental conditions
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 approach improves the visibility of participants by providing optimal lighting, maintaining color balance, and enhancing the overall quality of video conferencing and watch party experiences.
Implementation Method 1
In recent years, advances in light emitting diode (LED) technology have significantly progressed in all applications of lighting. LEDs have virtually replaced the incandescent light bulb and can be found throughout the home.
Implementation Method 2
The modern flat-panel video displays have advanced significantly in their applications of LED technology in pursuit of ever wider black-to-white dynamic range, as well as color purity
Data Source
AI summary
The present disclosure relates to a system and method for controlling a television display in such a matter that some portion of that display is re-purposed as a light emitting device intended to provide improved video scene lighting when using a video camera associated with the television display for communications as part of video conferencing or other activities. The systems and methods of the disclosure may be activated and controlled utilizing the television's remote-control device or a paired mobile device, using manual or verbal commands from the user. This results in an overall brightening of the television display or a reduction of that portion of the screen displaying the current programming, thereby exposing remaining pixels that can be independently illuminated to a greater brightness and color tinted. This action improves the illumination of the video scene area of those subjects in front of the television.