Display Device Defective Pixel Detection and Setup Guidance
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Solution Overview
Problem
Users often fail to detect defective pixels and set optimal environments for their display devices during initial setup, leading to suboptimal performance and after-sales service issues.
Innovation Solution
A display device and method that automatically detect defective pixels and guide users through setting an optimal environment by determining the device's mode based on usage count, outputting image data patterns, and providing setup program installation guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a utility CD is provided for setting the display environment, then the display device can achieve optimal performance, but users often forget to use it and fail to set the proper environment
Solution Approach 1:
The display device automatically performs preliminary actions by detecting defective pixels and displaying setup guidance screens during initial power-on, before the user needs to manually use the utility CD. This eliminates the need for users to remember to use the utility CD later.
Solution Approach 2:
The display device serves itself by automatically detecting defective pixels and generating setup guidance information without requiring external utility CDs or manual user intervention. The device autonomously identifies its own defects and creates appropriate test patterns.
2Reliability
If the display device automatically detects defective pixels and displays setup guidance, then users are guided to set optimal environment, but the device complexity increases
Solution Approach 1:
The control unit performs multiple functions: it controls normal display operations, detects defective pixels by analyzing displayed patterns, determines setup guidance needs, and manages power-on counting. This consolidates what could be separate functions into a single control unit, reducing overall system complexity.
Solution Approach 2:
The patent combines the defective pixel detection function, the setup guidance determination function, and the power-on counting function into an integrated control process. The control unit merges these operations into a unified workflow that activates automatically during initial power-on.
3Measurement precision
If the display device displays test patterns for defective pixel detection, then users can identify defective pixels, but the display time is lost for normal content
Solution Approach 1:
The defective pixel detection is performed periodically only during initial power-on events, not during continuous operation. The control unit checks the power-on count to determine whether to display test patterns, ensuring detection happens at appropriate intervals without continuously interrupting normal display.
Solution Approach 2:
The display device dynamically adjusts its operation mode based on the power-on count. During initial power-on (when count equals predetermined value), it displays test patterns for defective pixel detection. After detection is complete, it transitions to normal display mode, making the system adaptive to operational context.
Data Source
AI summary
When a user uses a display device for the first time in a factory mode, whether or not there are defective pixels is examined, and a guide message for setting initial settings is provided, so the user can use the display device in an optimal environment. As a result, if the display device has defective pixels, the user can be provided with after-sales service at an appropriate time, and use the display device at its full potential in an environment most suitable for the display device is set.