Dynamic Pixel Control for Sensor Area Visibility in Displays
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Solution Overview
Problem
The challenge is to enhance the visibility of electronic devices by effectively managing pixels adjacent to sensors integrated into the display, particularly in larger screen designs where bezel reduction and opaque member placement require innovative pixel control solutions.
Innovation Solution
The electronic device incorporates a display panel with a window, an adhesive member, and an opaque member, where a display driving circuit activates or inactivates pixels based on the sensor's position, allowing for enhanced visibility and gradation effects by controlling pixel regions overlapping with the opaque member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an opaque member is disposed along the periphery of the display region to hide wires and sensors, then the aesthetic appearance and sensor functionality are improved, but dead spaces appear around the sensor making the display region smaller
Solution Approach 1:
The patent applies dynamics by making the pixel control state changeable based on operating modes. The display driving circuit dynamically switches between first and second control states depending on whether the sensor is in use, allowing the display region to expand or contract virtually. This resolves the contradiction by making the display area adaptable rather than fixed, eliminating dead spaces when needed while maintaining aesthetic appearance when the sensor is not in use.
Solution Approach 2:
The patent changes the control parameter of pixels from a static on/off state to a dynamic state that depends on sensor usage. By monitoring sensor operation status and adjusting pixel control accordingly, the system transforms the display region boundaries. This parameter change allows the same physical display to provide different effective display areas based on functional requirements.
2Illumination intensity
If pixels adjacent to the sensor are inactivated to avoid visibility issues, then the aesthetic appearance is improved, but the display region size is reduced due to dead spaces
Solution Approach 1:
The patent makes pixel activation dynamic rather than static. Pixels adjacent to the sensor are not permanently inactivated but are selectively activated or deactivated based on sensor usage status. This dynamic control allows the display to maintain full visibility when the sensor is not in use while avoiding visibility issues when the sensor is active, thus preserving both display region area and illumination quality.
Solution Approach 2:
The patent implements periodic switching of pixel control states corresponding to sensor usage cycles. When the sensor is in use, adjacent pixels are inactivated; when the sensor is not in use, those pixels are activated. This periodic action between two states resolves the contradiction by ensuring that visibility issues only occur temporarily during sensor operation rather than permanently reducing the display area.
3Length of moving object
If the sensor is disposed in the display region to reduce bezel size, then the screen size is increased, but the opaque member creates dead spaces around the sensor
Solution Approach 1:
The patent resolves the size contradiction by making the effective display area dynamic. The physical screen size remains large with the sensor positioned in the display region, but the effective display area adjusts based on sensor usage. When the sensor is not in use, pixels around it are activated to maximize the effective display area. When the sensor is in use, those pixels are deactivated to avoid visibility issues. This dynamic adjustment maintains both large screen size and maximum effective display area at different times.
Data Source
AI summary
This electronic device comprises: a window comprising a first region; a display panel comprising a first opening; an adhesive member comprising an adhesive material and comprising a second opening; an opaque member comprising an opaque material disposed along the boundary of the first region; a sensor disposed under the window and visible through the first and second openings; and a display driving circuit configured to activate some first pixels among the pixels of the display panel disposed in a region where the display panel overlaps the opaque member.