Mounting device for mounting multi-segmented flexible printed circuit board on a circular display substrate
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Solution Overview
Problem
Conventional mounting devices are unsuitable for circular display substrates as they result in protruding pads, and existing devices are designed for quadrangular substrates, making it difficult to achieve a perfectly circular design and require multi-segmented flexible printed circuit boards with a unidirectionally aligned structure.
Innovation Solution
A mounting device with a circular stage and a rotatable pressing unit that includes suction holes, a pressing part, and a processing unit to align and attach a multi-segmented flexible printed circuit board to sub-pads on a circular display substrate, allowing for efficient mounting and shaping of the circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a general type of pad is applied to a circular display substrate, then the pad can be mounted on the substrate, but the pad protrudes from the circular display substrate, making it impossible to achieve a perfectly circular design
Solution Approach 1:
The pad structure is divided into multiple segments (first pad, second pad, third pad, fourth pad) arranged radially around the circular display substrate. Each pad segment is independently positioned and connected to the flexible printed circuit board, allowing the overall pad structure to conform to the circular shape without protruding elements.
2Productivity
If a conventional mounting device with unidirectional alignment is used for a quadrangular display substrate, then the flexible printed circuit board can be mounted efficiently, but it cannot accommodate the radial arrangement required for circular display substrates with multiple pads
Solution Approach 1:
The mounting device incorporates a rotating stage that can rotate about a central axis, transforming the static unidirectional alignment structure into a dynamic multi-directional system. This allows the pressing unit to access and mount pads at different angular positions around the circular display substrate while maintaining efficient automated operation.
3Shape
If multiple pads are arranged at regular intervals on a circular display substrate, then the circular shape is maintained, but the mounting process becomes more complex requiring radial alignment capability
Solution Approach 1:
The pressing unit is designed with multi-functionality to perform both pressing and alignment operations. The rotating stage serves multiple purposes: positioning different pad segments, enabling radial alignment, and facilitating the mounting process. This universal design reduces overall device complexity despite the radial arrangement requirement.
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
Enables effective mounting of a multi-segmented flexible printed circuit board on a circular display substrate with sub-pads, ensuring a perfectly circular design and efficient alignment and attachment process.
Implementation Method 1
The circular stage may include at least one suction hole configured to fix the display substrate and the flexible printed circuit board to the circular stage.
Data Source
AI summary
A mounting device for mounting a multi-segmented flexible printed circuit board includes: a circular stage on which a display substrate provided with a plurality of sub-pads and a multi-segmented flexible printed circuit board attached to a side of the display substrate are configured to be placed; and a pressing unit arranged adjacent to the circular stage and configured to press and attach the multi-segmented flexible printed circuit board to the plurality of sub-pads of the display substrate.