Flat Panel Display Mold Frame Without Base Plate
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Solution Overview
Problem
The thickness and weight of flat panel displays are increased due to the presence of a metallic base plate in the receiving container, which hinders their slimness and lightness.
Innovation Solution
The design eliminates the base plate by using a flexible printed circuit with a first portion attached to the mold frame and a second portion connected to the display panel, along with a support frame that overlaps the mold frame's outer sides and includes plates inserted into the sidewalls, reducing the overall thickness and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic base plate is used in the receiving container, then structural strength is improved, but thickness and weight increase
Solution Approach 1:
The patent removes the base plate from the receiving container structure entirely. The receiving container is redesigned to consist only of sidewalls that extend downward from the mold frame, eliminating the need for a separate base plate component while maintaining structural integrity through the sidewall design alone.
Solution Approach 2:
The patent employs a flexible printed circuit board (FPC) as a thin, flexible alternative to rigid metallic structures. The FPC extends from the driving unit area and connects to the display panel, providing both structural support and electrical connectivity in a thin, lightweight configuration that replaces the need for thick metallic base plates.
2Strength
If a metallic base plate is used in the receiving container, then structural strength is improved, but weight increases
Solution Approach 1:
The base plate is completely removed from the receiving container structure, eliminating the source of excessive weight. The sidewalls alone form the receiving container, and the flexible printed circuit board provides necessary structural and functional support without the weight penalty of metallic base plates.
Solution Approach 2:
The flexible printed circuit board serves as a lightweight, thin-film alternative to heavy metallic components. It provides both mechanical support and electrical connectivity functions that would otherwise require heavier rigid structures, significantly reducing the overall weight of the display device.
3Stability of the object's composition
If the receiving container includes a base plate and sidewalls, then structural integrity is maintained, but device complexity increases
Solution Approach 1:
The receiving container is simplified by removing the base plate, leaving only the sidewalls to define the container structure. This reduction in components decreases assembly complexity and part count while maintaining the necessary structural integrity through the sidewall design.
Solution Approach 2:
The flexible printed circuit board performs multiple functions simultaneously: it provides structural support, electrical connectivity, and acts as a mounting surface for the driving unit. This multi-functionality reduces the need for separate components, thereby simplifying the overall device structure.
Data Source
AI summary
A flat panel display includes a display panel, a mold frame receiving the display panel and a flexible printed circuit including a first portion disposed under the mold frame and a second portion extended from an end of the first portion and connected to the display panel. The first portion of the flexible printed circuit is attached to the mold frame. The mold frame includes a sidewall extending in a first direction, and a receiving plate extended from the sidewall in substantially a second direction perpendicular to the first direction. The receiving plate of the mold frame is disposed between the display panel and the flexible printed circuit.