Splicing Screen Testing Method for Display Defect Detection
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Solution Overview
Problem
Existing splicing screens are not tested before use, leading to display defects such as image distortion and errors when combined, as they are immediately put into service without pre-testing.
Innovation Solution
A testing method and apparatus that output image signals with testing sub-pictures to the splicing screens, allowing for the assessment of displacement parameters, distortions, gray scale consistency, and chromaticity, enabling the identification and correction of defects before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If splicing screens are immediately put into service without pre-testing, then installation time is reduced and productivity is improved, but display quality deteriorates due to defects such as image distortion and errors
Solution Approach 1:
The patent implements preliminary testing of splicing screens before they are put into service. A testing apparatus is used to detect display defects such as image distortion and errors in each splicing screen individually. This preliminary action ensures that only screens meeting quality standards are installed, thereby maintaining high display quality while enabling rapid deployment through automated testing procedures.
2Reliability
If comprehensive testing is performed on each splicing screen before use, then display quality is improved, but installation time increases and productivity decreases
Solution Approach 1:
The patent replaces manual visual inspection with an automated testing apparatus that uses electronic signal input and automated detection algorithms. The system inputs test signals, automatically captures display images, processes them through algorithms to detect defects, and generates test reports. This substitution of mechanical/manual processes with automated electronic systems maintains comprehensive testing quality while significantly reducing the time required, thereby preserving installation productivity.
3Ease of operation
If no testing is performed on splicing screens, then installation process is simplified and ease of operation is improved, but harmful factors increase due to display errors and image distortion
Solution Approach 1:
The testing apparatus enables each splicing screen to be self-tested before installation. The system automatically inputs test signals, captures the display output, analyzes it for defects, and provides a pass/fail determination. This self-service approach maintains installation simplicity by allowing rapid individual screening without complex manual procedures, while simultaneously eliminating harmful display defects through automated quality control.
Data Source
AI summary
A testing method for splicing screens is provided. The method includes: outputting an image signal to a display screen, wherein the display screen includes a plurality of splicing screens, the image signal includes a plurality of testing sub pictures, the testing sub pictures are arranged correspondingly to the splicing screens so as to enable the splicing screens to display the corresponding testing sub pictures, and the testing sub pictures include testing contents; and testing the splicing screens through the testing contents, wherein the testing contents include a graduation signal, by which an accurate test is performed on the splicing screens.