Automatic Display Panel Curvature Detection via Laser Height Comparison
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Solution Overview
Problem
Existing methods for detecting the curvature of display panels are manual, labor-intensive, prone to errors, and risk damaging the panels during measurement.
Innovation Solution
A detection device comprising a platform with a distance sensor and a controller that automatically measures the curvature of a display panel's end by comparing detected height values to a reference value, issuing a warning if the difference exceeds a preset threshold, thereby reducing manual labor and ensuring the panel meets usability criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual measurement is used to detect curvature, then detection can be performed, but the process is complicated, requires large quantity of manpower, is prone to skip detection, and risks breaking the panel
Solution Approach 1:
The patent replaces the manual mechanical measurement system with an automatic optical detection system using a laser sensor. The laser sensor emits light to measure the height of the display panel end automatically, eliminating the need for manual measurement tools and operations. This substitution resolves the contradiction by achieving high automation while keeping the device structure relatively simple.
Solution Approach 2:
The detection system performs self-measurement without human intervention. The laser sensor automatically measures the panel height, the controller automatically processes the data, and the system automatically determines whether the curvature meets specifications. This self-service capability resolves the contradiction by maximizing automation while minimizing the complexity of operational procedures.
2Productivity
If manual detection is used, then detection can be performed, but it requires relatively large quantity of manpower and is prone to skip detection
Solution Approach 1:
The patent replaces manual detection operations with an automatic laser-based measurement system. The laser sensor, controller, and processing system work together to automatically measure and evaluate panel curvature, eliminating the need for multiple operators and manual measurement procedures. This resolves the contradiction by dramatically improving detection efficiency while reducing manpower requirements.
Solution Approach 2:
The laser sensor acts as an intermediary between the display panel and the detection system. It automatically measures the panel height without requiring human contact or manual intervention, serving as a bridge that enables high-speed automated detection. This intermediary mechanism resolves the contradiction by enabling efficient detection with minimal human involvement.
3Reliability
If display panel is placed on workbench for manual measurement, then detection can be performed, but the panel is easily to be broken
Solution Approach 1:
The patent replaces contact-based manual measurement on workbenches with non-contact laser measurement. The laser sensor measures panel height from a distance without requiring the panel to be physically supported or manipulated, eliminating the risk of breaking during detection. This resolves the contradiction by ensuring panel safety while maintaining ease of operation through automatic measurement.
Solution Approach 2:
The laser sensor serves as an intermediary that measures panel dimensions without physical contact. By using light as the measurement medium instead of physical tools, the system eliminates the need to place the panel on workbenches or handle it during detection, thereby preventing breakage while keeping the detection process simple and efficient.
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 quick and convenient automatic detection of display panel curvature, reducing manual detection processes and labor costs while ensuring the panel's bending degree meets use requirements.
Implementation Method 1
the distance sensor is an infrared sensor or an ultrasonic sensor
Implementation Method 2
the distance sensor is an infrared sensor or an ultrasonic sensor
Data Source
AI summary
The disclosure discloses a detection device and a detection method for detecting the curvature of a display panel, including a detection platform which carries and transfers the display panel; a distance sensor installed on the detection platform and detecting a first height value H1 of the height between the end of the display panel and the distance sensor; and a controller which electrically connects the distance sensor, the controller includes a processor and a memory, the memory stores an executable instruction, the processor executes the executable instruction, the executable instruction includes sending the first height value H1 to the controller, the controller compares the first height value H1 with a reference height value H2, and issues a warning if the difference value ΔH between the first height value H1 and the reference height value H2 is greater than a preset threshold value H.