Display Driver Heat Dissipation Pattern Around Data Lines
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Solution Overview
Problem
Display devices face reliability issues due to heat generated from the display panel driver, which can damage pixels in the display area, and existing designs require additional space for heat dissipation, leading to dead space.
Innovation Solution
A display device with a heat dissipation pattern that overlaps and surrounds data lines, connected through contact holes to the substrate, effectively dissipating heat generated by the display panel driver without requiring additional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat dissipation structure is added to dissipate heat from the display panel driver, then heat dissipation effectiveness is improved, but device area increases due to additional space requirements
Solution Approach 1:
The heat dissipation pattern is merged with the data line structure by positioning it to overlap and surround the data lines in the plan view. This integration allows the heat dissipation function to be achieved within the existing device footprint without requiring additional dedicated space, thereby resolving the contradiction between heat dissipation effectiveness and device area.
Solution Approach 2:
The heat dissipation pattern extends in multiple directions including overlapping the data lines in the plan view and surrounding them in cross-sectional view. This multi-dimensional configuration maximizes heat dissipation surface area within the constrained device footprint, achieving effective heat dissipation without increasing the overall device area.
2Reliability
If heat dissipation space is allocated between the display panel driver and display area, then heat damage to pixels is reduced, but dead space increases
Solution Approach 1:
The data lines, which are existing structural elements, are positioned to surround the data lines in cross-sectional view, converting the potential heat conduction path into a beneficial heat dissipation structure. This eliminates the need for additional dead space while maintaining pixel protection from heat damage.
Solution Approach 2:
The heat dissipation pattern serves multiple functions: it dissipates heat from the display panel driver, surrounds and protects data lines, and maintains compact device geometry. This multi-functionality achieves pixel protection without creating dead space, as the same structure fulfills multiple protective and dissipative roles.
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
Minimizes heat damage to pixels and improves reliability by efficiently dissipating heat generated from the display panel driver, reducing the need for additional space and minimizing dead space.
Implementation Method 1
heat generated from a display panel driver and conducted through the substrate may be dissipated by the heat dissipation pattern connected through the contact holes, and heat generated from the display panel driver and conducted through the data lines may be dissipated by the heat dissipation pattern surrounding the data lines
Data Source
AI summary
A display device includes a substrate, a display panel driver disposed on the substrate, data lines disposed on the substrate, electrically connected to the display panel driver, and each extending in a first direction, and a heat dissipation pattern disposed on the substrate, overlapping at least a portion of the data lines in a plan view, and extended to the substrate through contact holes.