Lighting Device Distance Regulating Portion Bezel Width
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Solution Overview
Problem
The challenge in liquid crystal display (LCD) devices is to reduce bezel width while protecting light emitting elements from damage caused by the expanding light guide plate due to heat generated, which existing technologies have not adequately addressed.
Innovation Solution
A lighting device with a distance regulating portion between the circuit board and substrate housing, adjustable via elasticity, projections, or adhesive material, allowing for optimal positioning and protection of light emitting elements based on the number, arrangement, and size of these elements and the light guide plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the distance between the circuit board and light guide plate is reduced to decrease bezel width, then the bezel width is reduced, but the light emitting elements are damaged due to expansion of the light guide plate from heat
Solution Approach 1:
A distance regulating portion is provided between the circuit board and light guide plate before assembly, which compensates for the expansion of the light guide plate when light emitting elements are operated. This pre-configured cushioning structure prevents direct contact and damage to the light emitting elements while maintaining a reduced bezel width.
Solution Approach 2:
The distance regulating portion changes its physical parameters (such as thickness or elasticity) to compensate for thermal expansion of the light guide plate. By adjusting the distance parameter dynamically through material selection or structural design, the system maintains safe spacing between the light guide plate and circuit board under varying thermal conditions.
2Reliability
If a distance regulating portion is added between circuit board and substrate housing, then light emitting elements are protected from damage, but the device complexity increases
Solution Approach 1:
The distance regulating portion serves multiple functions simultaneously: it maintains the spaced relationship between the circuit board and light guide plate, compensates for thermal expansion, and can also serve as a fixing element or be integrated with the fixing structure. This multi-functionality reduces the need for separate components, thereby minimizing the increase in device complexity.
Solution Approach 2:
The distance regulating portion is integrated with the fixing element or fixing structure, combining the spacing function with the fixation function in a single component. This merging approach avoids adding separate parts and simplifies the overall assembly process, reducing the perceived complexity despite adding protective functionality.
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
The solution effectively adjusts the distance between the circuit board and substrate housing, preventing damage to light emitting elements and optimizing the configuration for reduced bezel width and improved protection.
Implementation Method 1
a distance regulating portion formed between the circuit board and the substrate housing to adjust a spaced distance between the circuit board and the substrate housing according to movement of the circuit, wherein the distance regulating portion enables the circuit board to be fixed to the substrate housing
Data Source
AI summary
Provided is a lighting device, including: a circuit board in which light emitting elements are mounted to one surface of a supporting substrate; a substrate housing disposed to be spaced apart from another surface opposite to the one surface of the supporting substrate; and a distance regulating portion formed between the circuit board and the substrate housing to adjust a spaced distance between the circuit board and the substrate housing according to movement of the circuit board, wherein the distance regulating portion functions to fix the circuit board to the substrate housing via a fixing element formed in the circuit board and the substrate housing.