Display Panel Information Code Layout for Readability
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Solution Overview
Problem
Existing display device manufacturing processes face challenges in reliably recording and reading product information, such as unique numbers and production dates, due to issues with information code visibility and damage during the production and cutting stages, which can lead to interruptions in the manufacturing process.
Innovation Solution
A display device panel design that includes multiple information codes with different patterns and positions, formed on the same layer as the gate lines, using a conductive material and ultraviolet light processing, allowing for reliable reading even if some codes are damaged or obscured, by synthesizing overlapping patterns to obtain the final information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single information code is recorded on the display device panel, then the manufacturing process is simple, but the information code may be damaged or obscured during production and cutting stages, leading to manufacturing interruptions
Solution Approach 1:
The information code is divided into multiple separate codes (first information code and second information code) positioned at different locations on the non-display area. This segmentation ensures that if one code is damaged or obscured during production, the other code remains intact and can be read, thereby improving the reliability of information retrieval without significantly complicating the manufacturing process.
2Area of stationary object
If information codes are placed close to the outline of the non-display area, then the available space is maximized, but the codes are more likely to be damaged during cutting stages
Solution Approach 1:
Different information codes are positioned at different distances from the outline of the non-display area. Specifically, the first information code is disposed at a first distance from the outline, while the second information code is disposed at a second distance from the outline, where the first distance is different from the second distance. This creates local variation in code positioning, allowing some codes to be more protected from cutting damage while others maximize space utilization.
3Reliability
If multiple information codes with different patterns are used, then the reliability of reading product information is enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent uses multiple copies of information codes (first information code and second information code) with the same or similar patterns positioned at different locations. Rather than creating complex unique patterns for each code, the system relies on having identical or similar code patterns that can be read interchangeably. This approach enhances reliability through redundancy while avoiding the increased manufacturing precision requirements that would result from creating and managing multiple unique code patterns.
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
Enhances the reliability of reading product information by ensuring that even if some information codes are damaged or obscured, others can be used for accurate data retrieval, reducing manufacturing interruptions and improving quality assurance.
Implementation Method 1
forming a depiction of a first information code and a depiction of a second information code... formed on the same layer as the gate line
Data Source
AI summary
A display device panel includes a display area including pixels and a non-display area. Each pixel is connected to one of gate lines and one of data lines. The non-display area includes data pad sections. The non-display area further includes a depiction of a first information code and a depiction of a second information code. The depiction of the first information code is disposed between first two adjacent data pad sections and is apart from an outline of the non-display area by a first distance. The depiction of the second information code is disposed between second two adjacent data pad sections and is apart from the outline of the non-display area by a second distance different from the first distance.