Camera Behind Display Layer Coordination
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Solution Overview
Problem
The challenge is to coordinate camera operation with thin film display devices that have minimal or no bezels, as traditional camera placement in the bezel becomes impractical with the increasing use of thin film technologies like LCD and OLED/AMOLED, which require efficient display area utilization and multitasking capabilities.
Innovation Solution
A system and method that locates a camera behind the outer display field layer of a thin film display device, utilizing a camera zone where the camera is integrated into the display device, allowing for image capture without degrading the display image quality, by modifying the display parameters such as rasterizing frequency and backlighting to accommodate camera usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If camera is placed in the bezel of the display device, then camera operation is simple and direct, but the bezel width increases which reduces display area utilization
Solution Approach 1:
The camera is nested behind the display field layer, integrating the camera functionality within the display structure itself. This allows the camera to be housed within the display device without requiring external bezel space, thereby maintaining a minimal bezel width while accommodating camera operation capabilities.
Solution Approach 2:
The camera is positioned in a different spatial dimension relative to the display surface - specifically behind the outer display field layer rather than on the front bezel. This dimensional relocation allows the camera to be integrated into the display structure from the rear side, eliminating the need for front bezel accommodation.
2Area of stationary object
If the camera is located behind the outer display field layer, then the bezel width is minimized, but the display image quality may be degraded due to light interference
Solution Approach 1:
The system dynamically adjusts display parameters such as refresh rate and backlighting intensity based on whether the camera is actively capturing images. When the camera is in use, the display refresh rate is reduced and backlighting is dimmed to minimize light interference with the camera's image capture process, thereby maintaining display image quality while accommodating camera operation behind the display layer.
Solution Approach 2:
The system implements periodic coordination between display rendering and camera capture operations. The display operates at normal refresh rates during periods when the camera is not capturing, and temporarily reduces activity during camera capture periods. This periodic synchronization ensures that display image quality is maintained during normal viewing while allowing camera operation behind the display layer without significant degradation.
3Measurement precision
If display refresh rate is reduced to accommodate camera operation, then camera image capture quality improves, but display updating speed decreases
Solution Approach 1:
The system dynamically adjusts the display refresh rate based on camera operation status. When the camera is actively capturing images, the display refresh rate is reduced to minimize light interference and improve camera image capture quality. When the camera is not in use, the display refresh rate returns to normal levels to maintain fast updating speed. This dynamic adaptation allows the system to optimize for either camera quality or display speed depending on the operational context.
Solution Approach 2:
The system changes the display refresh rate parameter in response to camera operation requirements. By modifying this critical parameter based on whether the camera is capturing images, the system can improve camera image capture quality when needed while maintaining fast display updating when the camera is not in use. This parameter adaptation resolves the contradiction between camera quality and display speed by making the display characteristics flexible rather than fixed.
Data Source
AI summary
An information handling system and method for a thin panel display device with a camera oriented behind an outer liquid crystal (LCD) layer of the thin panel display device. The outer LCD layer of the thin panel display device having a camera zone through which the aperture of the camera receives light and a processor or set of processors determining anticipated camera usage of a software application operating on the information handling system and detecting a nearest backlight to a camera zone and coordinating camera operation and thin panel display device display refresh rate and nearest backlight dimming at the outer LCD layer camera zone.