Back Light Unit Connector Extraction for Thinness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing back light units for liquid crystal displays face challenges in thinness due to the increased size of the bezel area caused by connectors, which hinders the reduction of the overall unit size.
Innovation Solution
A back light unit design where an opening is formed through the rear surface of the bottom cover to project the connector outside, utilizing a flexible printed circuit for signal transmission and incorporating a buffer between the connector and the opening to prevent movement, allowing for a reduced space occupation and effective fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connector is formed at the bezel portion, then the driving power source can be supplied to the light emitting diodes, but the area of the bezel portion increases
Solution Approach 1:
The connector is extracted from the traditional bezel portion location and repositioned to the light source substrate itself. This allows the connector to be integrated with the light emitting diode assembly rather than occupying separate bezel space, thereby reducing the overall device footprint while maintaining the power supply function.
Solution Approach 2:
The connector is moved from a two-dimensional bezel surface to the three-dimensional light source substrate structure. By integrating the connector into the substrate layer, the design transitions the connector placement from a planar constraint to a volumetric solution, reducing the horizontal footprint.
2Volume of moving object
If the connector is integrated into the light source substrate, then the space occupied by the connector is reduced, but the connector needs to be projected outside through an opening
Solution Approach 1:
The bottom cover is segmented with a specific opening that aligns with the connector position on the light source substrate. This segmentation allows the connector to be partially integrated into the substrate while maintaining external accessibility, dividing the connector space into internal integration and external connection zones.
Solution Approach 2:
The opening in the bottom cover serves as an intermediary structure that facilitates the connection between the integrated connector on the light source substrate and the external power source. This mediator enables the connector to function both as an integrated component and an external interface.
3Stability of the object's composition
If the opening size matches the connector size, then the connector is firmly fixed, but the light source substrate movement must be prevented
Solution Approach 1:
The opening dimensions are merged with the connector dimensions to create a precise fit, eliminating the need for separate fixation mechanisms. This dimensional matching ensures the connector is firmly held in place while the light source substrate's position is stabilized through this integrated dimensional relationship.
Data Source
AI summary
A back light unit is disclosed, of which thinness is easily provided. The back light unit comprises at least one light source substrate having one surface provided with at least one light source and the other surface provided with a connector to which a driving power source for driving the light source is input; a bottom cover receiving the light source substrate therein, wherein the bottom cover includes at least one opening, so that the connector is projected to the outside of the bottom cover, the opening passing through a rear surface of the bottom cover.