Display Apparatus Conductive Cover Layer Shielding and Heat Dissipation
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Solution Overview
Problem
High-frequency signals used in high-resolution displays generate electromagnetic waves near the driving chip, causing heat buildup that can damage components and degrade image quality.
Innovation Solution
A display apparatus with a conductive cover layer to shield electromagnetic waves and a heat dissipating unit to externalize heat generated by the driving chip, comprising a substrate, sealing member, display unit, driving chip, circuit board with signal wire, insulating layer, and conductive cover layer, which includes a metal for conductivity and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-frequency signals are used for high-resolution display, then display resolution is improved, but electromagnetic waves are generated causing heat buildup
Solution Approach 1:
The patent utilizes the conductive cover layer to convert the harmful electromagnetic waves generated by high-frequency signals into beneficial heat dissipation through controlled conduction. The same high-frequency signals that enable high resolution also generate heat, which is then managed by the heat dissipating unit, turning the harmful thermal effect into a controllable parameter.
Solution Approach 2:
The conductive cover layer acts as an intermediary between the driving chip and the external environment. It mediates the electromagnetic waves by providing a controlled conduction path, and simultaneously serves as a thermal interface for the heat dissipating unit, managing both electromagnetic and thermal effects between the chip and surroundings.
2Reliability
If electromagnetic waves are blocked to prevent component damage, then component reliability is improved, but heat dissipation may be hindered
Solution Approach 1:
The conductive cover layer performs multiple functions simultaneously: it shields electromagnetic waves to protect components while also serving as a thermal conduction path for heat dissipation. The heat dissipating unit integrates both electromagnetic shielding and thermal management capabilities into a single system, avoiding the need for separate components that might conflict with each other.
3Object-affected harmful factors
If a conductive cover layer is added to shield electromagnetic waves, then electromagnetic shielding is improved, but device complexity increases
Solution Approach 1:
The patent merges the electromagnetic shielding function with the heat dissipation function into a single integrated structure. The conductive cover layer is combined with the heat dissipating unit, eliminating the need for separate shielding components and reducing overall device complexity while maintaining both functions.
Solution Approach 2:
The conductive cover layer is designed to perform both electromagnetic shielding and thermal conduction functions simultaneously. This multi-functional approach reduces the number of components needed, as the same structure provides both protective and thermal management capabilities.
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
Prevents component damage and image quality degradation by shielding electromagnetic waves and effectively dissipating heat, enhancing the reliability and performance of the display apparatus.
Implementation Method 1
A display apparatus with a conductive cover layer to shield electromagnetic waves
Implementation Method 2
a heat dissipating unit that dissipates heat generated by the driving chip
Data Source
AI summary
A display apparatus that facilitates shielding of electromagnetic waves and heat dissipation is disclosed. The display apparatus may include: i) a substrate, ii) a sealing member disposed to face the substrate, iii) a display unit disposed between the substrate and the sealing member, iv) a driving chip disposed on the substrate and transmitting an electric signal to the display unit and v) a circuit board including a signal line that is electrically connected to the driving chip, and a conductive cover layer disposed to cover the driving chip. In one embodiment, the circuit board includes a heat sink for dissipating heat generated by the driving chip.