Liquid Crystal Module Light-Shielding Belt Elastic Compensation
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Solution Overview
Problem
Existing liquid crystal display devices with edge-type backlight modules suffer from light leakage at the periphery due to degradation of double-sided adhesives and displacement of frames, leading to increased gaps and more severe light leakage.
Innovation Solution
A liquid crystal module design featuring a light-shielding belt with an elastic element, where the belt is secured between the display panel and the support element, preventing light leakage by maintaining the belt's position through elastic deformation when the support element is displaced.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If double-sided adhesive and foam are used to fill the gap between display panel and front frame, then light leakage can be prevented initially, but the adhesive property degrades due to LED heat over time and the frame deforms, causing the gap to increase and light leakage to worsen
Solution Approach 1:
The patent introduces an elastic element that changes its physical state (compressed when gap decreases, relaxed when gap increases) to dynamically adapt to frame deformation and maintain consistent light shielding performance throughout the product lifecycle
Solution Approach 2:
The elastic element provides dynamic compensation for gap variations caused by frame deformation, replacing static adhesive/foam materials with a component that actively responds to dimensional changes, ensuring continuous light leakage prevention
2Object-affected harmful factors
If the gap between display panel and front frame is reduced to prevent light leakage, then light shielding is improved, but the structure becomes more sensitive to frame deformation and adhesive degradation
Solution Approach 1:
The elastic element is pre-configured to provide cushioning force that compensates for future frame deformation and adhesive degradation, preventing light leakage issues before they occur during product usage
3Object-affected harmful factors
If rigid light shielding structures are used to prevent light leakage, then light shielding effectiveness is high, but the structure cannot accommodate frame deformation and may cause displacement or breakage
Solution Approach 1:
The elastic element functions as a flexible component that maintains light shielding while accommodating frame deformation, replacing rigid structures that would fail under dimensional changes
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
Effectively reduces the risk of light leakage at the periphery of the display panel by maintaining the light-shielding belt's position, even when the support element is slightly displaced, thereby minimizing light leakage.
Implementation Method 1
an elastic element in abutment against the display panel is arranged at a second side surface of the light-shielding belt opposite to the first side surface
Data Source
Figure 1
Figure 2~3
AI summary
The present disclosure provides a liquid crystal module and a display device. The liquid crystal module includes a backlight module, a display panel and a support element surrounding the display panel and the backlight module. A light-shielding belt is arranged between a side edge portion of the display panel and the adjacent support element, a first side surface of the light-shielding belt is adhered onto the support element, and an elastic element in abutment against the display panel is arranged at a second side surface of the light-shielding belt opposite to the first side surface.