Liquid Crystal Display Frame Structure for Housing Fixation and Light Leakage
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Solution Overview
Problem
The existing liquid crystal displays face issues with foreign objects entering the gaps between the touch panel and display panel module, light leakage, and difficulty in fixing the metal housing to the plastic housing, leading to potential damage from external forces and complex reworking processes.
Innovation Solution
A frame-structure layer is introduced between the first and second housings, which includes a dark glue layer or composite structure with a buffer layer to enhance fixation, prevent light leakage, and absorb shocks, allowing for improved assembly and protection without the need for replacing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the metal housing is designed with a larger included angle to facilitate assembly, then the assembly process is simplified, but the fixation between the metal housing and plastic housing becomes loose, allowing displacement and interstices
Solution Approach 1:
A frame structure layer is introduced as an intermediary component between the metal housing and plastic housing. This frame structure layer fills the interstices and provides additional fixation points, ensuring reliable fixation while maintaining the assembly-friendly larger included angle design.
Solution Approach 2:
The housing structure is segmented into multiple components: the metal housing, the plastic housing, and the frame structure layer. This segmentation allows each component to perform its specific function - the frame structure layer specifically addresses the fixation issue by providing a structured framework that bridges the gap between the two housings.
2Reliability
If the metal housing is reworked to achieve 90 degrees included angle for better fixation, then the fixation between housings is improved, but the touch panel may be damaged during removal and reinstallation
Solution Approach 1:
The frame structure layer is pre-installed on the plastic housing before the metal housing is attached. This preliminary action ensures that the fixation structure is already in place, eliminating the need to remove and reinstall the touch panel during reworking operations.
Solution Approach 2:
The frame structure layer serves as a mediator that provides the necessary fixation between housings without requiring modification to the metal housing's included angle, thereby protecting the touch panel from damage during assembly operations.
3Ease of operation
If the included angle between wall and covering plane is larger than 90 degrees, then assembly is easier, but interstices are formed allowing particle entry and light leakage
Solution Approach 1:
The frame structure layer acts as an intermediary that fills the interstices created by the larger included angle design. It provides a barrier that prevents particle entry and light leakage while allowing the assembly-friendly larger angle configuration to be maintained.
Solution Approach 2:
The frame structure layer is strategically positioned at the critical interface between the metal housing and plastic housing, providing localized quality improvement by filling interstices and preventing harmful effects only where needed, without affecting the overall assembly design.
Data Source
AI summary
A structure of a liquid crystal display includes a first housing, a display panel module, a second housing, and a frame-structure layer. The first housing includes a first wall forming a compartment for the display panel module. The second housing includes a covering plane and a second wall. An edge of the display panel module is covered by the covering plane, and the first wall is surrounded by the second wall. The frame-structure layer is positioned between the first housing and the second housing.