Display Driver Output Wiring With Variable Widths for Overheating Control
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Solution Overview
Problem
Conventional display apparatuses face overheating issues due to uniform wire widths in integrated circuit chips, which are inadequate for handling increased voltages and currents in larger displays.
Innovation Solution
The driving apparatus employs output and input wires with varying average line widths to manage different signal types and currents, incorporating dummy lines to prevent shorts and optimizing wire arrangements to maintain a compatible size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If uniform wire widths are used in integrated circuit chips, then manufacturing simplicity is maintained, but overheating occurs due to inadequate current handling capability
Solution Approach 1:
The patent applies local quality by varying the wire widths at different locations within the integrated circuit chip. Specifically, wires carrying higher currents are designed with larger widths to reduce resistance and heat generation, while wires carrying lower currents maintain smaller widths. This localized optimization of wire dimensions based on current requirements effectively manages heat distribution without requiring complete redesign of the entire wiring structure.
Solution Approach 2:
The patent implements parameter changes by modifying the wire width parameter according to the current carrying requirements of different signal lines. By adjusting the width parameter of individual wires or wire groups, the patent optimizes electrical performance and thermal management. This approach allows the system to adapt wire dimensions to functional requirements rather than using a fixed uniform width throughout the chip.
2Power
If wire widths are increased to handle higher currents, then current carrying capacity improves, but the chip size increases beyond industry standards
Solution Approach 1:
The patent applies local quality by selectively increasing wire widths only in regions where high current flow is required, such as power supply lines and high-current signal paths. Wires carrying lower currents maintain standard widths. This localized approach ensures adequate current handling capability in critical areas while preventing unnecessary area expansion in low-current regions, thus maintaining overall chip compactness.
Solution Approach 2:
The patent segments the wiring structure into different width categories based on current requirements. Instead of using a single uniform wire width, the patent divides the wiring network into multiple segments with different width specifications. This segmentation allows optimization of current handling in high-power areas while maintaining small dimensions in low-power areas, effectively balancing power capability with area constraints.
3Temperature
If different wire widths are used for different signal types, then heat and current distribution is optimized, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by implementing different wire width specifications for different signal types and current levels. Power supply lines carrying high currents are designed with larger widths to minimize resistive heating, while data lines and control signals with lower currents use smaller widths. This localized differentiation optimizes heat distribution across the chip by matching wire dimensions to actual thermal loads in each region.
Data Source
AI summary
A driving apparatus is provided. The driving apparatus includes an integrated circuit chip; an input wiring pattern connected to the integrated circuit chip, and configured to be connected to a circuit board; and an output wiring pattern including a plurality of output wires connected to the integrated circuit chip, and configured to be connected to a display panel. The plurality of output wires are arranged in a first bonding region, at least two output wires of the plurality of output wires have different average line widths.