Glass Diffuser Plate with Integrated Cover Bottom for LCD Light Leakage
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Solution Overview
Problem
Conventional liquid crystal displays face challenges in achieving a thin profile and light weight due to their complex structure, which makes them difficult to apply in various fields, and they suffer from light leakage issues when trying to minimize case members, affecting their visual appearance and reliability.
Innovation Solution
A liquid crystal display design incorporating a glass diffuser plate with an adhesive layer and a cover bottom that supports the diffuser plate, featuring a vertical and horizontal portion to manage light sources efficiently, along with support members to secure the diffuser plate and panel, minimizing bezel area and preventing light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If case members are removed to achieve thin profile and light weight, then the display becomes thinner and lighter, but light leakage occurs and visual appearance deteriorates
Solution Approach 1:
The patent combines the cover bottom and guide panel into a single integrated component. The cover bottom includes a body portion covering the backlight unit and a guide portion extending to support the diffuser plate, eliminating the need for separate case members while maintaining structural integrity and preventing light leakage
Solution Approach 2:
The integrated cover bottom performs multiple functions: it covers the backlight unit, supports the diffuser plate at its edge, prevents light leakage, and provides structural support. This multi-functional design reduces the number of components while achieving the desired thin profile
2Weight of stationary object
If case members are removed to achieve thin profile and light weight, then the display becomes thinner and lighter, but structural stability deteriorates
Solution Approach 1:
The patent merges the cover bottom and guide panel into one integrated structure that provides both light coverage and mechanical support. This consolidation reduces weight while maintaining structural stability through the unified design
Solution Approach 2:
The adhesive layer is applied in advance to the edge of the diffuser plate before assembly, creating a pre-established bonding interface that ensures structural stability without requiring additional support components
3Reliability
If conventional components are used to prevent light leakage, then light leakage is prevented, but device complexity increases
Solution Approach 1:
The patent integrates the light leakage prevention function into the cover bottom itself through the guide portion that supports the diffuser plate. This eliminates the need for separate light shielding components while maintaining effective light leakage prevention
Solution Approach 2:
The cover bottom serves as both a protective cover and a light leakage prevention mechanism through its integrated guide portion. This multi-functional approach reduces component count while maintaining reliability
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 design achieves a thin profile and light weight while ensuring reliable light distribution and stability, reducing the risk of light leakage and maintaining optical characteristics, thus enhancing the display's reliability and aesthetic appeal.
Implementation Method 1
an adhesive layer provided at an edge between the liquid crystal display panel and the glass diffuser plate
Implementation Method 2
a glass diffuser plate provided on a back surface of the liquid crystal display panel
Data Source
AI summary
A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including an upper glass substrate and a lower glass substrate that are disposed opposite each other with a liquid crystal layer interposed therebetween, a glass diffuser plate provided on a back surface of the liquid crystal display panel, an adhesive layer provided at an edge between the liquid crystal display panel and the glass diffuser plate, a light source provided at a back surface of the glass diffuser plate, and a cover bottom including a vertical portion that supports an edge of the glass diffuser plate at the back surface of the glass diffuser plate and is opposite to a side of the light source, and a horizontal portion that is extended from the vertical portion and is opposite to a back surface of the light source.