Display Device Driving Substrate Pad Integration
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Solution Overview
Problem
Conventional display devices require separate connectors for electrical connection between the driving substrate and the light source substrate, leading to increased assembly time and potential defects.
Innovation Solution
The display device integrates a driving substrate with extending portions and pad portions that are electrically connected to the light source substrate within the accommodating member, eliminating the need for a separate connector by using pad and pattern portions for stable electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate connector is used to connect the driving substrate and light source substrate, then electrical connection is achieved, but assembly time increases and potential defects occur
Solution Approach 1:
The patent merges the connector function into the driving substrate by integrating pad portions and extending portions directly on the substrate. This eliminates the separate connector component while maintaining electrical connection functionality, thereby reducing assembly time and potential connector-related defects.
Solution Approach 2:
The patent extracts the connector functionality from a separate component and integrates it directly into the driving substrate structure. The pad portions and extending portions serve the electrical connection function that would traditionally require a separate connector, simplifying the overall assembly.
2Ease of manufacture
If a separate connector is used to connect the driving substrate and light source substrate, then electrical connection is achieved, but the number of components and assembly complexity increases
Solution Approach 1:
The patent combines multiple functions into the driving substrate itself. The extending portions and pad portions are integrated directly onto the substrate, eliminating the need for separate connectors and reducing the total component count, thereby simplifying assembly procedures.
3Productivity
If pad portions and extending portions are integrated on the driving substrate, then assembly time is reduced and defects are minimized, but manufacturing precision requirements increase
Solution Approach 1:
The pad portions and extending portions are pre-formed and positioned on the driving substrate during substrate manufacturing. This preliminary positioning ensures accurate alignment before the actual assembly with the light source substrate, reducing the need for high-precision alignment during final assembly and improving overall manufacturing efficiency.
Data Source
AI summary
A display device includes a display panel, an accommodating member including a bottom portion and a sidewall extending from the bottom portion, a backlight unit including a light source inside the accommodating member and a light source substrate inside the accommodating member and on which the light source is mounted, and a driving substrate connected to the light source substrate disposed inside the accommodating member. The driving substrate includes a first extending portion disposed outside the accommodating member, a second extending portion extended from the first extending portion and through the sidewall of the accommodating member to dispose an end portion of the second extending portion inside the accommodating member, and a pad portion disposed on a lower surface of the end portion of the second extending portion and inside the accommodating member. The pad portion is electrically connected to the light source substrate disposed inside the accommodating member.