Irregular Gate Line Resistivity Compensation for Notch Display Panels
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Solution Overview
Problem
Existing irregularly shaped display panels with notches face issues where gate lines are divided, leading to increased resistance and affected display effects due to the need for wiring around notches, which complicates the driving of gate lines near the notch.
Innovation Solution
The array substrate design includes regular and irregular gate lines, where the irregular sections are electrically connected to maintain consistent resistance by using sub-sections with varying resistivity, ensuring that gate lines near the notch can be driven effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gate lines are wired around the notch to connect both sides, then the gate lines near the notch can be driven, but the resistance of the gate lines increases due to increased length
Solution Approach 1:
The patent applies local quality by differentiating the resistivity of different sections of the irregular gate line. Specifically, the first sub-section has a first resistivity while the second sub-section has a second resistivity that is lower than the first. This allows the longer path around the notch to have compensated lower resistance in certain sections, balancing the total resistance with regular gate lines despite the increased length.
2Adaptability or versatility
If the display panel has an irregular shape with notch, then it adapts to environment structure and use requirements, but the gate lines are divided into two parts affecting display effect
Solution Approach 1:
The patent segments the irregular gate line into multiple sections: a first sub-section, a second sub-section, and a third sub-section, with different resistivity characteristics. This segmentation allows each section to be optimized independently - the first sub-section with higher resistivity and the second sub-section with lower resistivity work together to compensate for the extended path length, ensuring the overall resistance matches regular gate lines while maintaining the notch configuration.
3Reliability
If resistivity of first sub-section is greater than resistivity of second sub-section, then resistance of irregular gate lines is substantially the same as regular gate lines, but the structure becomes more complex
Solution Approach 1:
The patent changes the resistivity parameter of different gate line sections to achieve resistance balance. By setting the first sub-section with a first resistivity and the second sub-section with a second resistivity (lower than the first), the patent compensates for the increased length of irregular gate lines. This parameter variation allows irregular gate lines to have substantially the same resistance as regular gate lines, ensuring consistent display performance despite structural differences.
Data Source
AI summary
An array substrate includes: a display region, a non-display region surrounding the display region, at least one notch in the non-display region, and multiple gate lines. The gate lines include regular gate lines and irregular gate lines. The regular gate line is located in the display region and extends in a first direction. The irregular gate line includes a regular section located in the display region and extends in the first direction and an irregular section located in the non-display region around the notch. The regular section and the irregular section of the same irregular gate line are electrically connected. The irregular section includes a first sub-section and/or a second sub-section. The first sub-section and the second sub-section of the same irregular section are electrically connected to each other. A resistivity of the first sub-section is greater than a resistivity of the second sub-section.