Modular Display Frame Structure for Thermal Seam Control
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Solution Overview
Problem
The challenge of preventing seams between display modules due to thermal expansion in a display apparatus comprising multiple frames is addressed.
Innovation Solution
A display apparatus is designed with a frame system that includes module attachment layers and frame panels with different thermal expansion coefficients, fixed by fixing members to prevent relative movement during thermal expansion, and uses an adhesive layer with greater ductility to maintain consistent gaps between modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If display modules are arranged in a matrix on a frame, then the display apparatus can achieve large screen and various resolutions, but thermal expansion causes gaps between modules to increase creating visible seams
Solution Approach 1:
The frame is divided into multiple frame panels that are respectively coupled to different module attachment layers. Each frame panel independently supports adjacent display modules, allowing localized thermal expansion management. This segmentation prevents uniform thermal stress across the entire frame, maintaining gap consistency between modules arranged in a matrix configuration.
Solution Approach 2:
The patent utilizes materials with different thermal expansion coefficients for the frame panels and module attachment layers. By selecting materials whose thermal expansion characteristics are matched or complementary, the design compensates for thermal expansion effects. This parameter matching ensures that gaps between display modules remain consistent even when temperature changes cause thermal expansion.
2Adaptability or versatility
If multiple frames are used to support display modules, then the display apparatus can accommodate various resolutions and screen sizes, but seams may appear between modules due to differential thermal expansion
Solution Approach 1:
Different frame panels are designed with locally optimized properties to support specific module configurations. Each frame panel is tailored to its local thermal and mechanical environment, allowing the overall system to accommodate various resolutions and screen sizes while maintaining visual uniformity. The local quality approach ensures that each region of the frame handles thermal expansion appropriately for its specific location.
Solution Approach 2:
The frame structure employs composite material construction, combining materials with different thermal expansion coefficients in a coordinated manner. This composite approach allows the frame to accommodate differential thermal expansion between multiple frames while preventing visible seams. The composite structure integrates materials that compensate for each other's thermal behavior, maintaining visual uniformity across the entire display apparatus.
3Stress or pressure
If module attachment layers with different thermal expansion coefficients are used, then thermal stress can be managed, but relative movement between layers may occur during thermal expansion
Solution Approach 1:
Adhesive layers are introduced as intermediary elements between module attachment layers with different thermal expansion coefficients. These adhesive layers act as buffers that accommodate differential thermal expansion while preventing relative movement between the attachment layers. The intermediary adhesive material absorbs thermal stress and maintains the structural integrity and positional stability of the multi-layer frame system.
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 maintains consistent gaps between display modules, preventing seams and enhancing the visual unity and performance of the display apparatus.
Implementation Method 1
a first module attachment layer to which some display modules among the plurality of display modules are attached and having a first thermal expansion coefficient; a first frame panel coupled to the first module attachment layer and having a second thermal expansion coefficient different from the first thermal expansion coefficient
Data Source
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AI summary
A display apparatus includes: a plurality of display modules; and a frame configured to support the plurality of display modules in a matrix arrangement. The frame includes: a first module attachment layer having a first thermal expansion coefficient; a first frame panel coupled to the first module attachment layer and having a second thermal expansion coefficient; and a second module attachment layer to which remaining display modules of the plurality of display modules are attached, having the first thermal expansion coefficient; a second frame panel coupled to the second module attachment layer and having the second thermal expansion coefficient; a first fixing member configured to fix a first portion on the first module attachment layer and a first portion on the first frame panel; a second fixing member configured to fix a first portion on the second module attachment layer and a first portion on the second frame panel.