Backlight Detection Device Using Multi-Sensor Array
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Solution Overview
Problem
Current backlight detection methods for liquid crystal display devices are inefficient due to spot-by-spot detection using luminance meters, which prolongs the time required to assess light and electric properties, leading to lower detection efficiency and potential low-quality assembled devices.
Innovation Solution
A backlight detection device featuring a carrier plate with a backlight detection region, a light property detection plate equipped with multiple brightness sensors, and a data processing unit that simultaneously detects brightness across different regions and determines the quality of the backlight's light properties, improving detection efficiency and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a luminance meter is used to detect brightness of different regions of the backlight spot by spot, then the light properties of the backlight can be detected, but the detection time is prolonged and detection efficiency is reduced
Solution Approach 1:
The backlight detection region is divided into multiple regions, with each region assigned a dedicated brightness sensor. This segmentation allows simultaneous detection of multiple regions rather than sequential spot-by-spot measurement, thereby maintaining measurement precision while significantly reducing detection time
Solution Approach 2:
The invention transitions from one-dimensional sequential spot detection to two-dimensional parallel region detection by arranging multiple brightness sensors in an array configuration. This dimensional change enables all regions to be detected simultaneously, resolving the time-loss problem while preserving measurement accuracy
2Measurement precision
If spot by spot detection is performed on the backlight, then light properties can be evaluated, but the overall detection efficiency of light and electric properties is reduced
Solution Approach 1:
The invention merges multiple brightness sensors into a single integrated light property detection plate that simultaneously detects multiple regions. This combination allows parallel detection of all regions in one operation, improving productivity while maintaining the precision needed for accurate backlight quality evaluation
Solution Approach 2:
The detection system performs continuous simultaneous measurement across all backlight regions rather than intermittent sequential measurements. This continuous parallel action eliminates idle time between measurements, thereby improving detection efficiency while preserving evaluation accuracy
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
The solution enables faster and more efficient detection of light and electric properties, reducing the risk of missed defects and improving the yield rate of assembled liquid crystal display devices by allowing simultaneous brightness measurements across the backlight.
Implementation Method 1
a light property detection plate with a plurality of brightness sensors arranged thereon, configured for detecting light properties of different regions of a backlight to be detected which is positioned in the backlight detection region
Data Source
AI summary
An embodiment of the present disclosure provides a backlight detection device, comprising: a carrier plate, having a backlight detection region for carrying a backlight to be detected; a light property detection plate with a plurality of brightness sensors arranged thereon, configured for detecting light properties of different regions of a backlight to be detected which is positioned in the backlight detection region; and a data processing unit, in signal connection with the plurality of brightness sensors, configured for judging whether the light property of the backlight to be detected is qualified or not according to a plurality of brightness signals of different regions of the light source to be detected which are detected by the plurality of brightness sensors.