Integrated PCB for LCDM Side-Mounted Signal Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display modules (LCDMs) face limitations in achieving a lightweight and thin profile due to the complexity and cost of connecting data and control PCBs, particularly with the use of connectors and flexible cables, which complicates the assembly and disassembly processes.
Innovation Solution
An integrated printed circuit board (PCB) is used, connected to the liquid crystal panel and positioned on the side surface of the main frame, incorporating a data unit, signal generating unit, gate control unit, and power source, with a connector that receives signals from an external unit, reducing the number of PCBs and simplifying the assembly process by eliminating the need for separate connectors and flexible cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate data PCB and control PCB are used with connectors and flexible cables, then electrical connection between PCBs is achieved, but device complexity and assembly complexity increase
Solution Approach 1:
The patent combines the data PCB and control PCB into a single integrated PCB that performs both data processing and control functions. This merging eliminates the need for separate connectors and flexible cables between the two PCBs, directly reducing device complexity and assembly complexity while maintaining reliable electrical connections through integrated circuit traces.
2Reliability
If multiple separate PCBs and connectors are used, then electrical connection is established, but weight increases
Solution Approach 1:
The integration of data PCB and control PCB into one unified board eliminates the weight of separate PCBs, connectors, and flexible cables. The consolidated design reduces the total component count and material usage, directly decreasing the overall weight of the LCDM while preserving all necessary electrical connection functions.
3Reliability
If connectors and flexible cables are used for PCB connection, then electrical connection is achieved, but production cost increases
Solution Approach 1:
The patent integrates the data processing and control functions onto a single PCB, eliminating the need for expensive connectors and flexible cables. This consolidation reduces component costs, assembly costs, and testing costs, directly lowering production costs while maintaining reliable electrical connections through standard PCB trace routing.
4Adaptability or versatility
If separate data PCB and control PCB are used, then functional separation is achieved, but device thickness increases
Solution Approach 1:
The patent merges the data PCB and control PCB into a single integrated board that performs both functions. This consolidation eliminates the need for stacking or positioning multiple separate PCBs at different depths, directly reducing the overall thickness of the LCDM while maintaining clear functional separation through software and circuit design.
Data Source
AI summary
A liquid crystal display module (LCDM) includes a liquid crystal panel; a backlight unit disposed under the liquid crystal panel and projecting light on the light crystal panel; a main frame surrounding a side of the backlight unit and a side of the liquid crystal panel; an integrated printed circuit board (PCB) connected to the liquid crystal panel and disposed at a side surface of the main frame, the integrated PCB including a data unit for providing a data driving signal to the liquid crystal panel, a signal generating unit for generating a data control signal, a gate control signal, and a power source signal and a timing control unit; a connector disposed on the integrated PCB and including a slot along the side surface of the main frame, the connector for receiving a signal from an external unit; a bottom frame under the backlight unit; a system board on a rear side of the bottom frame; a flexible cable connecting the connector and the system board; and a top frame covering edges of the liquid crystal panel and combined with the main frame and the bottom frame.