Display Module Backplane Support for Light Guide Alignment
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Solution Overview
Problem
Display modules with super-long sizes face challenges in maintaining alignment between the light guide plate and lateral backlight source, leading to misalignment and adverse effects on display quality.
Innovation Solution
A display module design incorporating a backplane with contact structures, elastic contact members, and an intermediate frame with limit protrusions to secure the light guide plate, along with reinforcing ribs for structural support, ensuring proper alignment and preventing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a super-long size display screen is used, then the visual convenience and application scope are improved, but the light guide plate becomes prone to upwarping and misalignment with the backlight source
Solution Approach 1:
The intermediate frame is designed with limit protrusions that pre-establish positioning constraints for the light guide plate before assembly is complete. The contact structures on the backplane are positioned in advance to provide preliminary support and alignment guidance, ensuring the light guide plate maintains correct positioning throughout the assembly process and during operation.
Solution Approach 2:
The intermediate frame acts as an intermediary component between the backplane and the light guide plate. It provides additional support structures (limit protrusions) that mediate the positioning relationship, ensuring the light guide plate remains aligned with the backlight source without direct rigid constraint from the backplane alone.
2Ease of manufacture
If the light guide plate is made flexible to accommodate assembly variations, then ease of assembly is improved, but structural stability and alignment maintenance deteriorate
Solution Approach 1:
The support system is segmented into multiple independent components: the backplane with contact structures, the intermediate frame with limit protrusions, and the light guide plate itself. This segmentation allows each component to perform its specific function - the backplane provides base support, the intermediate frame provides positioning constraints, and the light guide plate maintains its structural integrity without needing to be overly flexible.
Solution Approach 2:
The design changes the positioning parameters by introducing fixed geometric constraints through the limit protrusions and contact structures. Instead of relying on the flexibility of the light guide plate to accommodate assembly variations, the system uses precisely positioned structural features that define the correct position and orientation, maintaining both ease of assembly and structural stability.
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 prevents upwarping of the light guide plate, maintaining alignment with the backlight source and enhancing display quality, particularly in super-long displays.
Implementation Method 1
an elastic contact member is in the receiving space and is in contact with the backplane body and is adjacent to the light guide assembly
Data Source
AI summary
The present disclosure provides a display module and a display apparatus. The display module includes a display panel, a backlight assembly, an intermediate frame and a backplane; the backplane includes a backplane body on a side of the backlight assembly away from the display panel; the backplane body includes a contact structure recessed in a direction from a side away from the light guide assembly toward a side close to the light guide assembly. The contact structure is in contact with the light guide assembly; a receiving space is between the backplane body and the light guide assembly and on a side of the contact structure close to a lateral backlight source; an elastic contact member is in a receiving space and is in contact with the backplane body and is adjacent to the light guide assembly; the intermediate frame includes an intermediate frame body surrounding the backlight assembly.