Display Driving Unit Placement and Cable Length Reduction
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Solution Overview
Problem
In digital television (DTV) systems, the display driving unit is exposed to heat generated from the lower side surface, leading to potential issues, and high-quality, high-resolution video processing requires expensive cables with minimal length to reduce fabrication costs.
Innovation Solution
The display apparatus positions the driving unit on a lower part of the DTV, with a processing unit below it, and uses a dual-layer flexible printed circuit board cable to transfer video signals, allowing for efficient video processing and minimization of cable length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display driving unit is positioned on the upper part of the display apparatus, then the structure is conventional and easy to manufacture, but the driving unit is exposed to heat generated from the lower side surface which causes reliability issues
Solution Approach 1:
The patent inverts the conventional position of the display driving unit by placing it on the lower part of the display apparatus instead of the upper part. This inversion resolves the heat exposure problem while the patent simultaneously provides easy manufacturing guidance for this new configuration.
2Manufacturing precision
If expensive high-bandwidth cables are used to process high-quality video, then video quality is improved, but fabrication cost increases
Solution Approach 1:
The patent changes the cable length parameter by minimizing the distance between the display driving unit and processing unit through optimal positioning. This parameter change allows the use of shorter, less expensive cables while maintaining high-bandwidth video transmission capability for high-quality video processing.
3Ease of manufacture
If the cable length is minimized to reduce cost, then fabrication cost is reduced, but the driving unit must be positioned closer to the processing unit which may affect heat management
Solution Approach 1:
The patent positions both the display driving unit and processing unit on the lower part of the display apparatus, utilizing the vertical dimension and lateral spacing to achieve short cable length while maintaining adequate heat management through spatial separation in the lower region away from heat-generating components.
Data Source
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AI summary
A display apparatus including a display module; a signal processing unit which is mounted on a rear surface of the display module, and adapted to process the received video signal; a driving unit which is located on a lower part nearer to a lower end of the display apparatus than an upper end of the display apparatus, and configured to drive the display module; and a shield bracket which is fixed to the display module and covers the driving unit, wherein the shield bracket partially covers the display module, wherein a cable connected between the driving unit and the signal processing unit is uncovered by the shield bracket.