Optical Sensor Mounting via Wire Drawing Port
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Solution Overview
Problem
Existing image display devices, such as liquid crystal displays, require modifications like drilling or cutting to accommodate optical sensors for measuring backlight luminance, which deviates from standard production specifications and complicates production control and distribution management.
Innovation Solution
An optical sensor mounting structure that utilizes a wire drawing port in the panel sheet metal to measure leak LED light without modifying the image display panel module, employing an optical sensor positioned by a positioning member near the wire drawing port to accurately measure the backlight's luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drilling or cutting is performed on the backlight module to accommodate optical sensors, then optical sensor installation is enabled, but production complexity and manufacturing difficulty increase
Solution Approach 1:
The wire drawing port, originally designed for wire passage, is utilized to serve dual purposes: wire routing and optical sensor light reception. The port's inherent structure provides the necessary light transmission path, eliminating the need for additional drilling or cutting operations.
Solution Approach 2:
The wire drawing port is transformed from a single-function component (wire passage) to a multi-functional element that simultaneously accommodates wire routing and optical sensor installation, allowing one structure to serve multiple purposes in the backlight module.
2Reliability
If drilling or cutting is performed on the backlight module, then optical sensors can be installed, but deviation from standard specifications occurs
Solution Approach 1:
The existing wire drawing port structure is leveraged to provide the necessary function for optical sensor installation, allowing standard specification modules to accommodate sensors without requiring custom modifications or deviations from approved designs.
3Measurement precision
If optical sensors are positioned near LED light sources, then light reception efficiency is improved, but additional drilling of the LED box is required
Solution Approach 1:
The wire drawing port acts as an intermediary structure that enables optical sensor positioning near the LED light source without requiring direct drilling into the LED box. The port serves as a pre-existing access point that mediates between the sensor placement requirement and the structural integrity of the LED housing.
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
Enables accurate measurement and control of backlight luminance in standard specification-compliant liquid crystal display modules without altering the module, simplifying production and assembly while maintaining high image display quality.
Implementation Method 1
an optical sensor configured to measure leak light from the backlight
Data Source
AI summary
Provided is an optical sensor mounting structure for use in image display device devices that can accurately measure the amount of light from a backlight by measuring leak LED light, without having to modify an image display panel module itself. In an image display device using an image display panel module in which a wire drawing port for drawing a wire from a backlight is formed in a panel sheet metal, an optical sensor mounting structure includes an optical sensor configured to measure leak light from the backlight and a positioning member (intermediate connector) positioning the optical sensor. The optical sensor is disposed near the wire drawing port and measures the leak LED light from the wire drawing port.