Under-Display Optical Sensing Layout for Natural Camera Angles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices with front-facing cameras positioned in side frame regions often result in excessively tilted shooting angles, hindering natural image presentation.
Innovation Solution
Positioning an optical sensing element, such as a camera, below the display region of an LCD panel utilizing micro LED pixels with high aperture ratios, allowing external light to penetrate and be sensed without occupying the side frame space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the optical sensing element is positioned in the side frame region, then the shooting angle becomes excessively tilted, but positioning it below the display region increases design margin and improves image presentation
Solution Approach 1:
The optical sensing element is repositioned from the traditional side frame region to below the display region, utilizing the vertical dimension of the display panel. This dimensional transition allows the sensing element to capture light at a more natural angle while maintaining compact device integration.
Solution Approach 2:
The micro LED pixels with high aperture ratio serve as an intermediary that allows external light to penetrate through the display region to reach the optical sensing element positioned below. This intermediary structure enables light transmission while maintaining the display function.
2Area of stationary object
If the optical sensing element is positioned below the display region, then design margin increases, but light must penetrate through the display elements
Solution Approach 1:
The aperture ratio of the micro LED pixels is optimized to a high value, changing the light transmission parameter. This allows sufficient external light to penetrate through the display elements to reach the optical sensing element while maintaining display performance.
3Device complexity
If conventional cameras are positioned in side frame regions, then device integration is simplified, but shooting angles become excessively tilted
Solution Approach 1:
The camera module is relocated from the horizontal side frame region to the vertical region below the display, utilizing the unused space in the vertical dimension. This maintains simple device integration while dramatically improving shooting angle characteristics.
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 significantly increases the design margin of the display device and mitigates the issue of excessively large shooting angles, ensuring better image presentation.
Implementation Method 1
Due to the high aperture ratio of the micro LED pixels, light from the outside of the display device may penetrate the micro LED pixels and enter the optical sensing element
Data Source
AI summary
A display device including a liquid crystal display (LCD) panel, a backlight module, a light shielding layer, and an optical sensing element is provided. The LCD panel has a first region, a second region, and a third region. The LCD panel includes a liquid crystal layer corresponding to the first region, at least one first self-emitting display element group corresponding to the second region, and at least one second self-emitting display element group corresponding to the third region. The light shielding layer is positioned between the backlight module and a light exit surface of the at least one first self-emitting display element group and corresponds to the second region. The optical sensing element is positioned below the LCD panel and corresponds to the third region.