Stacked Circuit Board Assembly for Display Devices
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Solution Overview
Problem
Existing liquid crystal televisions face increased costs and space occupation due to the need for additional LVDS lines and separate logic boards, which restrict the application scope and increase the area of the display panel.
Innovation Solution
A circuit board assembly with a stacked configuration using pin headers and sockets to connect the main board and logic board directly, eliminating the need for additional LVDS lines and optimizing space usage, along with the use of flexible flat cable lines to connect components efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the logic board is integrated on the television main board, then the area of the television main board increases, but the output mode is limited and customization is required
Solution Approach 1:
The patent divides the logic board functionality into separate modules (first logic board module and second logic board module) that can be independently selected and connected to the main board through connection members. This segmentation allows the main board to support different output modes without increasing its area, as only the required logic board module is connected based on the screen type.
2Adaptability or versatility
If the logic board is made as an independent board card and fixed on the display panel, then the logic board can be independent, but the space of the display panel is occupied and the area increases
Solution Approach 1:
The patent transitions from a two-dimensional layout where the logic board is fixed on the display panel to a three-dimensional stacked configuration where the logic board module is connected to the main board through connection members. This vertical stacking eliminates the need for additional display panel area while maintaining logic board independence.
3Reliability
If an additional LVDS line is used to connect the television main board, then signal transmission is enabled, but the cost increases
Solution Approach 1:
The patent combines the LVDS signal transmission function with the existing connection members (first and second connection members) that are already part of the logic board module structure. By integrating the signal transmission capability into the connection members themselves, the need for separate additional LVDS lines is eliminated, reducing cost while maintaining reliable signal transmission.
Data Source
AI summary
Disclosed is a circuit board assembly, a display device, and a method for manufacturing the same. The display device includes a main board, a logic board, a X-coordinate circuit board and a display panel. The main board and the logic board forms a circuit board assembly with a stacked structure, and the logic board is connected to the X-coordinate circuit board by a flexible flat cable line.