Sensor Unit Driving Device for Reducing Bezel Width
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Solution Overview
Problem
Existing display devices with sensor units require a bezel width equal to or greater than the sensor member's width due to the need for housing the sensor, leading to a projected bezel and increased width.
Innovation Solution
A sensor unit driving device with a sensor unit configured to be on the lateral or rear surface of the display panel in a retreat position, allowing it to protrude and retract without projecting the bezel, using an actuator to switch between retreat and detection positions, enabling the sensor to face the display surface without increasing the bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor member is housed in the bezel, then the sensor can face the display surface, but the bezel width must be equal to or greater than the sensor member width, causing the bezel to project in front of the display surface
Solution Approach 1:
The sensor unit is made movable between a retracted position (where it does not project from the display surface) and a protruding position (where the sensor faces the display surface for sensing). This dynamic configuration allows the bezel width to be reduced while maintaining sensing capability when needed.
Solution Approach 2:
Instead of housing the sensor statically within the bezel width constraint, the sensor unit is moved along the depth dimension (front-rear direction) to achieve sensing. This transforms the problem from a 2D bezel width constraint to a 3D spatial arrangement where the sensor can protrude when needed without increasing the bezel's footprint width.
2Measurement precision
If the sensor member is rotated to face the display surface, then sensing is enabled, but a space for housing the sensor member is required, necessitating projected bezel
Solution Approach 1:
The sensor unit is configured to rotate from a retracted orientation to a sensing orientation only when needed. This dynamic rotation eliminates the need for a permanent housing space that would accommodate the sensor in all orientations, reducing the required bezel volume.
Solution Approach 2:
The sensor unit is extracted from the traditional bezel housing and positioned on the rear surface of the display panel. This extraction allows the sensor to be driven forward and rotated into position only when sensing is required, rather than being permanently housed in the bezel structure.
Data Source
AI summary
Provided is a sensor unit driving device capable of protruding and retracting a sensor unit for sensing a display surface without projecting a bezel in front of a display surface while reducing a width of a bezel. The present invention is to provide a sensor unit driving device comprising a display panel comprising a display surface for displaying an image, a sensor unit with a sensor, and an actuator driving the sensor unit. The sensor unit is configured to be on a lateral surface side or a rear surface side of the display panel when the sensor unit is in a retreat position and is configured so that the sensor faces the display surface when the sensor unit is in a detection position. The actuator is configured to drive the sensor unit for switching between the retreat position and the detection position by a movement of the sensor unit.