Under-Screen Sensor Display Layout to Minimize Transmission Region Defects
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Solution Overview
Problem
Existing full-screen electronic devices with under-screen sensors require a transmission region for sensing, leading to display defects due to the absence of display elements, which are noticeable to users.
Innovation Solution
The electronic device incorporates a first region with emission and transmission regions, and a second region with emission and blocking regions, where the ratio of the transmission region to the first region's area is 0.52 to 0.96, and the distance ratio between elements is 0.76 to 1.24, allowing for a good sensing function without display defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transmission region is added to the display region for under-screen sensor integration, then sensing function is enabled, but display defects become noticeable to users
Solution Approach 1:
The patent applies local quality by creating distinct regions with different properties: the first region contains both emission and transmission regions for sensing, while the second region contains only emission regions for display. This spatial differentiation allows the transmission region to be localized where it is needed for sensing without affecting the overall display quality in other areas.
Solution Approach 2:
The display region is segmented into multiple regions with different functions: the first region (with emission and transmission sub-regions) and the second region (with only emission regions). This segmentation allows the sensing function to be integrated in specific areas while maintaining display quality in other areas, resolving the contradiction between sensing capability and display perfection.
2Measurement precision
If the transmission region area is increased to improve sensing accuracy, then sensing precision improves, but display quality deteriorates due to larger non-display areas
Solution Approach 1:
The patent applies parameter changes by optimizing the area ratio of the transmission region within the first region to be between 0.2 and 0.8, and the area ratio of the first region to the entire display region to be between 0.1 and 0.5. These parameter optimizations allow sufficient transmission area for accurate sensing while limiting the impact on overall display quality.
3Reliability
If display elements are removed to create transmission regions, then sensing function is enabled, but the screen shows defects or gaps
Solution Approach 1:
The patent merges the display function and sensing function in the first region, where both emission regions (for display) and transmission regions (for sensing) coexist. This merging allows the same physical space to serve dual purposes, eliminating the need for separate transmission-only regions that would create visible gaps in the display.
Solution Approach 2:
The first region is designed with multi-functionality, serving both display purposes (through emission regions) and sensing purposes (through transmission regions). This universal design allows a single region to fulfill multiple functions simultaneously, avoiding display defects while enabling sensing capability.
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 enables a full-screen display with enhanced sensing accuracy and consistent image display, minimizing the impact of transmission regions on the display quality.
Implementation Method 1
The sensor is overlapped with the first region of the electronic panel, and the sensor is configured to receive a sensing signal passing through the transmission region
Data Source
AI summary
An electronic device including an electronic panel and a sensor is disclosed. The electronic panel has a first region, which includes a first element and a second element separated from each other by a first distance, and a second region, which includes a third element and a fourth element separated from each other by a second distance. Each of the first element and the second element has an emission region and a transmission region. The sensor overlaps the first region of the electronic panel, and the sensor is configured to receive a sense signal passing through the transmission region. A first ratio of the second distance to the first distance is ranged from 0.76 to 1.24, and a second ratio of an area of the transmission region to an area of the first element is ranged from 0.52 to 0.96.