Rolling Test Device for Display Panel Edge Pressure Measurement
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Solution Overview
Problem
The existing pressure testing methods for display panels are inefficient due to long test cycles, requiring extensive time for each test point, resulting in low efficiency.
Innovation Solution
A rolling test device and method that includes a test platform with a rolling surface, a rolling jig, and a driving member connected to a roller, which performs a reciprocating rolling test on the edge of the display panel to quickly determine the pressure limit value, reducing the test cycle and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure testing is performed point by point on the display panel edge, then measurement precision is improved, but productivity deteriorates due to long test cycle
Solution Approach 1:
The patent transforms the static point-by-point testing approach into a dynamic rolling testing approach. The rolling jig moves continuously along the display panel edge, applying pressure through a rolling contact instead of stationary point testing. This dynamic motion enables the tester to quickly identify the pressure limit value at different positions without the time-consuming sequential point testing, thereby improving both measurement precision and productivity.
Solution Approach 2:
The rolling jig performs periodic rolling motion along the display panel edge, applying and releasing pressure in a cyclical manner. This periodic action allows the testing system to efficiently scan multiple test points in sequence, maintaining measurement precision while significantly reducing the overall test cycle time compared to static point-by-point testing.
2Productivity
If rolling test is performed on the display panel edge, then productivity is improved by reducing test cycle, but object-generated harmful factors worsen due to potential panel damage
Solution Approach 1:
The rolling jig is equipped with a cushioning structure that provides protective buffering between the roller and the display panel edge. This cushioning layer prevents direct hard contact, absorbing excessive pressure and preventing panel damage during the rolling test process. The cushioning mechanism allows the system to maintain high-speed rolling testing while protecting the delicate display panel from harm.
Solution Approach 2:
The system dynamically adjusts the pressure parameters during the rolling test based on real-time feedback. When approaching the pressure limit value, the system modifies the rolling pressure and speed parameters to prevent excessive force that could damage the panel. This parameter control enables efficient testing while maintaining safety margins to avoid panel destruction.
Data Source
AI summary
Disclosed are a rolling test device and a rolling test method. The rolling test device includes a test platform having a rolling surface for placing a test piece to be rolled; a rolling jig located on one side of the rolling surface; and a driving member connected to the rolling jig. A roller is connected to one end of the rolling jig towards the rolling surface, and after the roller is pressed against the rolling surface, the driving member drives the rolling jig to move on the rolling surface to drive the roller to perform a rolling test on the rolling surface.