Overlapping Connection Circuit Boards for Display Alignment
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Solution Overview
Problem
As display panel sizes increase, the process of bonding connection circuit boards to a driving circuit board often results in misalignment due to the gravitational drooping of circuit board ends, leading to increased separation distances and alignment challenges.
Innovation Solution
The implementation of first and second connection circuit boards with protruding portions that overlap and are connected by an adhesive, allowing for easier alignment and bonding with the driving circuit board, thereby reducing misalignment and separation distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple connection circuit boards are used to connect the display panel and driving circuit board, then the display device can function properly, but misalignment occurs during bonding due to gravitational drooping
Solution Approach 1:
The circuit board ends are preliminarily shaped into protruding portions before the bonding process. These protruding portions extend from the input portions and are designed to fit into corresponding recesses on the driving circuit board, establishing the correct position before bonding occurs and preventing misalignment due to gravitational drooping during the bonding process.
Solution Approach 2:
The protruding portions act as intermediary elements between the connection circuit boards and the driving circuit board. They provide a mechanical interface that facilitates precise alignment and positioning during bonding, serving as a mediator that eliminates the need for complex alignment procedures and reduces separation distances.
2Manufacturing precision
If the circuit board ends are positioned closer to reduce separation distance, then alignment improves, but gravitational drooping causes misalignment during bonding
Solution Approach 1:
The protruding portions are designed in advance to counteract the harmful effect of gravitational drooping. By creating interlocking protruding portions and recesses, the structure pre-establishes mechanical constraints that prevent the circuit board ends from drooping and misaligning during the bonding process, effectively applying preliminary anti-action against gravity's harmful effects.
Solution Approach 2:
The protruding portions are preliminarily formed on the circuit boards before bonding, establishing precise alignment positions that compensate for gravitational drooping effects during the bonding process.
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 facilitates easier alignment and bonding of connection circuit boards to the driving circuit board, reducing misalignment and enhancing the efficiency of the bonding process.
Implementation Method 1
An adhesive is disposed between the first protruding portion and the second protruding portion
Data Source
AI summary
A display device includes a display panel including first pads in a first row and second pads in a second row, a driving circuit board, a first connection circuit board including a first output portion on which first output pads bonded to the first pads of the display panel are disposed, a first input portion on which first input pads bonded to the driving circuit board are disposed, and a first protruding portion, and a second connection circuit board including a second output portion which overlap at least a portion of the first output portion and on which second output pads bonded to the second pads of the display panel are disposed, and a second input portion on which second input pads bonded to the driving circuit board are disposed. At least a portion of the first protruding portion is disposed on the second input portion.