Backlight Module Lamp Protection via 3D Locating Block
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Solution Overview
Problem
Conventional backlight modules are vulnerable to external impacts and loading, particularly from the weight of the liquid crystal panel, which can damage the L-shaped lamp, as existing holders only provide protection against x-y plane forces and not z-axis pressures.
Innovation Solution
A backlight module design incorporating a light guide plate, L-shaped or U-shaped lamps, turning holders with locating blocks, and an upper frame with locating openings, where the locating block is embedded to provide three-dimensional protection by covering and absorbing impacts from various directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional holders are used to cover the L-shaped lamp, then the lamp is protected from x-y plane impact, but the lamp remains vulnerable to z-axis loading from the liquid crystal panel weight
Solution Approach 1:
The patent extends the protection from two-dimensional (x-y plane) to three-dimensional by adding vertical support structures. The support blocks protruding from the lower frame and receiving grooves in the upper frame create a third dimension (z-axis) of protection, forming a complete spatial enclosure that prevents both lateral impact and vertical loading damage to the lamp.
2Ease of manufacture
If the holder structure is simplified to reduce complexity, then manufacturing becomes easier, but the lamp becomes more vulnerable to external impact and loading
Solution Approach 1:
The protection system is divided into independent functional segments: turning holders for lateral protection, support blocks for vertical support, and receiving grooves for positioning. Each segment performs a specific protection function, allowing the system to achieve comprehensive three-dimensional protection through simple, modular components that are easy to manufacture and assemble.
Data Source
AI summary
A backlight module comprising a light guild plate, at least one lamp, a lower frame, at least one turning holder, a locating block and an upper frame is provided. The lower frame is used for carrying the light guild plate and the lamp. The light guide plate has light incidence planes and light emergence planes, and the lamp is disposed beside at least a part of the light incidence planes. The lamp has at least one turning angle, and the turning holder covers the turning angle of the lamp. The locating block is disposed on the turning holder, and the upper frame is disposed on the lower frame and exposes the light emergence plane. The upper frame has a locating opening, and the locating block is embedded in the locating opening. The backlight module provides three-dimensional preservation to preserve the lamp from the damage caused by external impact.