Backlight Module Camera Region Light Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of a camera under a display panel with a backlight module poses challenges in image capturing quality due to elements within the backlight module affecting the transmission of image beams.
Innovation Solution
A backlight module that operates in both display and camera modes by adjusting light emitting units, tunable reflectors, and diffusers to minimize interference, allowing image beams to pass through when in camera mode while maintaining display functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the camera is hidden under the display panel with backlight module, then full-screen display is achieved, but image capturing quality deteriorates due to light transmission interference
Solution Approach 1:
The backlight module is segmented into multiple independently controllable light emitting units arranged in arrays. Each light emitting unit can be individually turned on or off, allowing specific regions to be activated or deactivated. This segmentation enables the system to turn off light emitting units corresponding to the camera region when in camera mode, while maintaining display functionality in other regions.
Solution Approach 2:
The backlight module implements dynamic operation by switching between different operational states based on the device mode. In display mode, all light emitting units are turned on to provide full backlight. In camera mode, the system dynamically turns off specific light emitting units corresponding to the camera region while keeping others active, enabling adaptive light control that resolves the contradiction between display and camera functions.
2Measurement precision
If light emitting units are turned off in camera region, then image capturing quality improves, but display functionality in that region is lost
Solution Approach 1:
The display panel and backlight module are divided into multiple regions corresponding to different functional zones. The light emitting units are arranged in arrays that map to specific display regions and camera regions. This spatial segmentation allows independent control of backlight in different areas, enabling the camera region to be darkened for image capture while other display regions maintain their backlight for normal display operation.
Solution Approach 2:
The backlight module implements local quality control by applying different operational states to different spatial regions. In camera mode, the light emitting units in the camera region are turned off to create a dark region suitable for image capture, while light emitting units in other regions remain on to maintain display functionality. This local differentiation resolves the contradiction by allowing the same system to have different properties in different locations.
Data Source
AI summary
A backlight module is provided. The backlight module is used for a display panel having a camera region. The backlight module may be operated in display mode or camera mode. The backlight module includes multiple light emitting units. When the backlight module is operating in the display mode, the light emitting units are all turned on. When the backlight module is operating in the camera mode, a portion of the light emitting units corresponding to the camera region of the display panel is turned off, and another portion of the light emitting units is turned on.