Optical Sensor Mounting with Positioning Jig and Diaphragm
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Solution Overview
Problem
The installation of optical sensors behind a backlight in image display devices is time-consuming and labor-intensive due to varying shapes and configurations of the devices and openings, requiring precise adjustment of the sensor holder's position.
Innovation Solution
An image display device with a backlight and an optical sensor system that includes a protruding diaphragm opening and a passage hole, utilizing a positioning jig to accurately mount the sensor holder, which is then fixed using double-sided tape and screws, allowing for efficient alignment and installation of the optical sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor holder is mounted on the backside of a backlight with manual positioning, then the optical sensor can detect light through the opening, but the installation requires time-consuming and labor-intensive adjustment of the sensor holder's position
Solution Approach 1:
The patent applies preliminary action by pre-forming protrusions on the sensor holder that correspond to recesses in the backlight housing before installation. This pre-positioning feature ensures that when the sensor holder is installed, it automatically aligns with the correct position without requiring manual adjustment, thus achieving precise positioning while reducing installation time
Solution Approach 2:
The patent introduces an intermediary positioning mechanism consisting of protrusions and recesses that mediate between the sensor holder and the backlight housing. These mechanical features serve as an intermediary system that automatically establishes the correct positional relationship, eliminating the need for manual positioning and reducing installation complexity
2Adaptability or versatility
If the sensor holder position is adjusted for different image display device shapes, then the optical sensor can be installed on various device configurations, but the installation process becomes more complex and requires different adjustment procedures
Solution Approach 1:
The patent applies universality by designing the sensor holder with standardized protrusions that fit into corresponding recesses in the backlight housing. This universal positioning mechanism can be applied across different image display device shapes and sizes, providing adaptability while maintaining a consistent, simple installation procedure regardless of the specific device configuration
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 method significantly reduces the time and effort required for installing optical sensors by enabling precise and efficient positioning of the sensor holder, ensuring accurate alignment and quick installation.
Implementation Method 1
an optical sensor which detects light passing through the opening
Data Source
AI summary
An image display device has an image display unit including a display for displaying images and a backlight arranged behind the display to illuminate the display. The image display device includes an opening formed behind the image display unit, an optical sensor which detects light passing through the opening, and a sensor holder which holds the optical sensor, and the opening includes a protruding diaphragm and a passage hole.