Display Panel Circuit Board Alignment Using Calculated Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face misalignment issues between circuit boards and display panels, leading to potential interference and alignment errors during assembly.
Innovation Solution
A method involving the calculation of correction movement distances based on terminal and pad distances, followed by precise alignment and cutting of circuit boards to ensure proper alignment and maintain tolerances, using a base film to fabricate display devices with differentiated terminal areas on circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If circuit boards are assembled to display panels using conventional alignment methods, then assembly process is simple, but misalignment occurs between terminals and pads leading to assembly errors
Solution Approach 1:
The patent applies preliminary action by pre-calculating the correction movement distance based on the difference between the first distance (between outermost terminals) and the second distance (between outermost pads) before assembly. This pre-calculated value is used to determine the cutting position of the base film and guide the alignment process, thereby improving alignment precision without significantly increasing process complexity
Solution Approach 2:
The patent replaces complex mechanical alignment adjustments with a calculated correction approach. Instead of relying on mechanical trial-and-error alignment, the system uses mathematical calculation of the correction movement distance (first distance minus second distance) to determine precise positioning, substituting mechanical complexity with computational precision
2Manufacturing precision
If circuit boards are aligned without correction calculation, then assembly process is fast, but alignment errors occur between terminals and pads
Solution Approach 1:
The patent performs preliminary calculation of the correction movement distance before the actual assembly process. By calculating the difference between the first distance (terminals) and second distance (pads) in advance and using this value to determine cutting positions, the system achieves precise terminal-pad alignment without requiring time-consuming trial-and-error adjustments during assembly
Solution Approach 2:
The alignment system is self-correcting through automated calculation. The system automatically determines the correction movement distance and uses it to guide the cutting and positioning of circuit boards, eliminating the need for manual measurement and adjustment, thereby maintaining both high precision and productivity
Data Source
AI summary
A display device includes: a display panel; a first circuit board comprising a first terminal connected to a pad of the display panel; a second circuit board comprising a third terminal connected to a second terminal of the first circuit board; and a driver circuit on the first circuit board, wherein a first terminal area of the first circuit board on which the first terminal is located and a second terminal area of the first circuit board on which the second terminal is located have different sizes.