Light Source Device Stopper Wiring Tension
Solution Overview
Problem
The existing light source devices experience positional deviation due to wiring tension, affecting the luminance and uniformity of light in display devices.
Innovation Solution
A light source device configuration that includes a light guide plate with a stopper to restrict the movement of the light source, and wiring that extends along the edge of the light guide plate to supply power, preventing positional deviation caused by tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wiring is connected to supply power to the light source, then the light source can be powered, but the wiring is subjected to tension causing positional deviation of the light source
Solution Approach 1:
A stopper member is introduced as an intermediary component between the light source and the wiring. The stopper restricts the movement of the light source in the wiring arrangement direction, thereby preventing positional deviation caused by wiring tension while allowing the wiring to be properly connected and arranged.
2Ease of manufacture
If the wiring is laid along the edge of the light guide plate, then the wiring can be properly routed, but the wiring tension causes the light source position to deviate from the desired position
Solution Approach 1:
The stopper member serves as a mediator that decouples the wiring routing function from the light source positioning function. The wiring can be freely laid along the edge of the light guide plate for ease of manufacture, while the stopper independently maintains the light source at the correct position despite any tension in the wiring.
3Ease of operation
If the light source is freely positioned during assembly, then the assembly process is simple, but the light source moves due to wiring tension resulting in poor luminance uniformity
Solution Approach 1:
The stopper member is pre-installed on the light guide plate before the light source assembly. This preliminary action ensures that when the light source is placed and connected, its position is automatically restricted by the stopper, preventing movement due to wiring tension and ensuring luminance uniformity without complicating the overall assembly process.
Data Source
AI summary
A light source device has a light emitting element, a light guide plate which light from the light emitting element enters, and wiring which extends from the light emitting element side along the edge (a second side surface or a third side surface) of the light guide plate and supplies power to the light emitting element. The light guide plate has a stopper which is located on an arrangement side of the wiring from the light emitting element and which restricts movement of the light emitting element to the arrangement side of the wiring.