Mold Recess for Parallel COF Insertion in LCD Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-definition liquid crystal display devices with multiple Chip On Film (COF) connections face challenges in reducing outside configuration size and improving assembly work efficiency, as existing solutions require cumbersome individual insertion of COFs into recesses, leading to inefficiencies in accommodating multiple COFs on a single side of the panel.
Innovation Solution
The design features a mold with elongated holes on one side to accommodate multiple flexible wiring substrates in parallel, allowing for simultaneous insertion and reducing the need for individual bending and insertion of COFs, and optionally includes a second mold part to accommodate COFs on opposite sides, enhancing assembly efficiency by forming joint holes for improved COF management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple COFs are connected in parallel to one side of the liquid crystal display panel to achieve high definition, then the number of wirings and display quality improve, but the outside configuration size and assembly complexity increase
Solution Approach 1:
The patent applies nesting by placing multiple COFs inside a recess formed in the side surface of the mold. The recess creates a nested structure where the COFs are accommodated within the mold's internal space rather than extending outward, thereby maintaining compact outside configuration while supporting multiple COF connections for high-definition display.
Solution Approach 2:
The patent transitions from a two-dimensional surface arrangement to a three-dimensional solution by forming a recess in the side surface of the mold. This dimensional change allows COFs to be accommodated within the mold's depth, reducing the horizontal footprint and outside configuration size while maintaining the capability to connect multiple COFs.
2Area of stationary object
If individual COFs are inserted into recesses one by one to accommodate multiple COFs, then the outside configuration is reduced, but the assembly work efficiency decreases
Solution Approach 1:
The patent merges multiple COF insertion operations into a single unified process. By forming a continuous recess in the side surface of the mold that can accommodate multiple COFs simultaneously, the design allows all COFs to be inserted and fixed in one assembly operation rather than requiring separate insertion steps for each COF, thereby maintaining compact size while improving assembly efficiency.
3Ease of manufacture
If the mold structure is modified to accommodate multiple COFs efficiently, then the assembly process is simplified, but the mold complexity increases
Solution Approach 1:
The patent segments the mold structure by forming a recess in the side surface, separating the COF accommodation function from the main mold body. This segmentation allows the mold to maintain its primary function while adding a dedicated structural feature for efficient multi-COF assembly, balancing structural complexity with manufacturing ease.
Data Source
AI summary
A liquid crystal display device has features that a plurality of flexible wiring substrates is connected in parallel to a first side of a liquid crystal display panel, and a plurality of flexible wiring substrates is connected in parallel to a second side opposite the first side, that on a first side of a mold, a first hole for accommodating the plurality of flexible wiring substrates is formed in a top surface of the mold at place corresponding to the first side of the liquid crystal display panel, and that on a second side of the mold that is opposite from the first side thereof, a second mold part is combined with the mold so that the mold and the second mold part jointly form a second hole for accommodating the plurality of flexible wiring substrates connected to the second side of the liquid crystal display panel.