Staggered Panel Lands for LCD Soldering Alignment
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Solution Overview
Problem
The increasing resolution of liquid crystal display panels leads to narrowed spaces between panel lands, causing soldering misalignment and decreased precision when soldering a flexible circuit board to the panel lands.
Innovation Solution
A liquid crystal display module design where adjacent panel lands stagger in a transverse direction, with corresponding flexible circuit board lands of varying widths, ensuring zero or minimal space between them, and using conductive adhesive for connection, to maintain soldering precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the display panel is increased, then the display quality is improved, but the space between panel lands is narrowed causing soldering misalignment
Solution Approach 1:
The patent transitions from a single-row linear arrangement of panel lands to a multi-row staggered arrangement. By introducing a transverse direction and creating alternating patterns across multiple rows, the design increases the effective spacing between corresponding flexible circuit board lands while maintaining high resolution display requirements. This dimensional change allows soldering lands to be distributed more favorably in space.
Solution Approach 2:
The patent employs asymmetric staggering where panel lands in adjacent rows are offset from each other in the transverse direction. This asymmetric arrangement creates non-uniform spacing patterns that increase the distance between corresponding soldering points on the flexible circuit board, thereby improving soldering alignment precision while accommodating high-resolution display constraints.
2Measurement precision
If the space between panel lands is narrowed to accommodate high resolution, then the display resolution is improved, but soldering alignment becomes difficult
Solution Approach 1:
The patent resolves the manufacturing difficulty by utilizing a multi-row staggered configuration that distributes soldering lands across different transverse positions. This dimensional redistribution allows corresponding flexible circuit board lands to be positioned with adequate spacing for alignment, even though the overall panel resolution remains high.
Solution Approach 2:
The patent segments the panel lands into multiple rows with staggered positions rather than using a single continuous row. This segmentation allows the soldering interface to be divided into multiple corresponding pairs, each with sufficient spacing for proper alignment and soldering operations, while maintaining the high pixel density required for display resolution.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances soldering precision by preventing misalignment and ensuring consistent contact resistances, effectively addressing the issue of decreased precision due to narrow spaces between panel lands.
Implementation Method 1
the first panel land and the first flexible circuit board land, the second panel land and the second flexible circuit board land are connected with conductive adhesive
Data Source
AI summary
Disclosed is a liquid crystal display module comprising a display panel, and a plurality of panel lands is positioned on the display panel, and lengths of the panel lands extend along a straight direction of wire directions, and the module further comprise a flexible circuit board, and the flexible circuit board comprises a plurality of flexible circuit board lands, and the flexible circuit board lands are soldered with the panel lands one-to-one correspondingly. Two adjacent panel lands and corresponding flexible circuit board lands constitute a soldering unit, comprising a first panel land, a second panel land, a first flexible circuit board land corresponding to the first panel land and a second flexible circuit board land corresponding to the second panel land. The first panel land and the second panel land stagger transversely. The present invention also discloses a liquid crystal panel.