Under-Display Optical Sensing Layout With High-Transmittance Pixel Region
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Solution Overview
Problem
Current electronic devices face challenges in improving the light receiving effect of optical sensing modules due to the presence of electronic elements or wires in the display region, which obstruct light reception.
Innovation Solution
A display device design that includes a pixel region divided into a first and second area, where the optical sensing module is positioned over the second area with a greater transmittance, allowing for a wider coverage and optimized light acceptance through the use of pixels with different sizes and densities or adjusting pixels to enhance light penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the optical sensing module is disposed in the display region to increase screen-to-body ratio, then the device integration is improved, but the light receiving effect deteriorates due to electronic elements and wires obstructing light
Solution Approach 1:
The pixel region is divided into a first area and a second area, where the second area has higher transmittance and is specifically designed for light reception. The optical sensing module is disposed corresponding to the second area, separating the light reception function from the general display region and reducing interference from electronic elements.
Solution Approach 2:
Different areas of the pixel region are designed with different transmittance characteristics. The second area has a coverage width of not less than 0.43mm and is optimized for light transmission, while the aperture width is controlled to be less than the coverage width of the second area, creating a localized optimal light reception zone.
2Illumination intensity
If pixels with different sizes and densities are used in different areas, then the light transmittance in the second area is improved, but the manufacturing complexity increases
Solution Approach 1:
The pixel region is segmented into a first area and a second area with different pixel configurations. The second area uses pixels with larger spacing or lower density to achieve higher transmittance, while the first area maintains standard pixel density for display purposes.
Solution Approach 2:
Different pixel designs are applied locally to different areas: the second area has optimized pixel characteristics (larger spacing, lower density, or adjusted pixel structures) to maximize light transmittance, while other areas maintain standard pixel designs for normal display functionality.
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 design improves the light receiving effect and sensing performance of the optical sensing module by increasing the luminous flux and brightness in the second area, thereby enhancing the overall optical sensing capability.
Implementation Method 1
The optical sensing module is disposed corresponding to the second area of the pixel region of the display panel and has an aperture able to accept lights through the second area
Data Source
AI summary
A display device includes a display panel and an optical sensing module. The display panel includes a pixel region having a plurality of pixels and including a first area and a second area, wherein the second area is greater than the first area in a transmittance. The optical sensing module is disposed corresponding to the second area of the pixel region of the display panel and has an aperture able to accept lights through the second area. The second area has a coverage with a width of not less than 0.43 millimeters. The aperture has a width, and the width of the aperture is less than the width of the coverage of the second area.