Display Gate Line Segmentation for Heat Dispersion
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Solution Overview
Problem
Conventional display apparatus configurations experience display failures due to heat generated in vertical gate lines, particularly at connection points, leading to differences in line load that cause significant variations in time constants and current flow, resulting in gate opening issues.
Innovation Solution
The display apparatus incorporates multiple connection points for vertical gate lines near the input side to disperse current, avoids connections for gate lines closest to the input side to reduce heat generation, utilizes conductive films to increase parasitic capacitance, and adjusts line resistance and shape of gate lines to manage line load and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vertical gate lines are connected to gate lines at multiple connection parts, then the line load is distributed and current flow is reduced, but the complexity of the gate line structure increases
Solution Approach 1:
The gate line structure is segmented into multiple connection parts along the vertical gate line, dividing the single connection point into several segments. This segmentation distributes the current flow across multiple connection parts, reducing the current density and heat generation at each individual connection point, thereby improving display reliability while managing structural complexity through systematic division
2Adaptability or versatility
If the frame region is narrowed to improve design flexibility, then the available space for routing gate lines is reduced, but the difficulty of routing gate lines without causing heat issues increases
Solution Approach 1:
The gate line routing strategy transitions from conventional horizontal/vertical arrangements to a diagonal routing pattern that extends from the first side toward the opposite side of the display region. This dimensional change in routing approach allows gate lines to traverse the narrowed frame region more efficiently, reducing the number of connection parts needed and simplifying the overall routing complexity while maintaining design flexibility
3Reliability
If connection parts are positioned near the input side to reduce line load, then the current flow and heat generation at connection parts increase, but the time constant variation between different vertical gate lines becomes significant
Solution Approach 1:
Different connection parts are positioned at different locations along the vertical gate lines, with connection parts on vertical gate lines closer to the input side positioned differently than those on vertical gate lines farther from the input side. This local differentiation in connection part positioning compensates for the varying line loads experienced by different vertical gate lines, ensuring that connection parts near the input side (which experience higher current and heat) are strategically placed to optimize performance while maintaining overall line load consistency across the display region
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
This configuration reduces charge/discharge current at connection points, prevents display failures by minimizing heat generation, and maintains stable line loads across vertical gate lines, enhancing the reliability of the display apparatus.
Implementation Method 1
utilizes conductive films to increase parasitic capacitance
Implementation Method 2
Joule heat is generated by the resistance of the connection part
Data Source
AI summary
The display apparatus includes a plurality of gate lines, a plurality of vertical gate lines orthogonal to the gate lines, and a plurality of connection parts, each of which connects one of the gate lines and corresponding one of the vertical gate lines. The plurality of vertical gate lines extend from a first side in the display region. At least the gate line disposed closest to the first side is connected to the corresponding vertical gate line by a plurality of connection parts disposed at two or more locations.