Direct-Bonded LCD Module Assembly Yield Optimization
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Solution Overview
Problem
Conventional LCD modules face issues with warpage of glass components leading to light loss, limited viewing angles, and high manufacturing costs due to complex assembly procedures that increase the risk of breakage and reduce yield rates.
Innovation Solution
A full-laminated LCD module design featuring an outer supporting frame with adjustable spring screws and a method of assembly where the protective layer is embedded in a positioning slot, allowing for separate adjustment and adhesion of the liquid crystal panel and backlight module, eliminating the need for conventional supporting frames and platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If platforms are formed with greater heights to prevent breakage of the liquid crystal panel, then the liquid crystal panel is protected from breakage, but light loss increases and image clarity is reduced
Solution Approach 1:
The invention removes the conventional platform structure entirely and replaces it with a direct adhesion system where the protective layer is bonded to the liquid crystal panel, eliminating the gap between components while still providing protection against breakage through the adhesion structure itself
Solution Approach 2:
The protective layer and liquid crystal panel are merged into a single integrated unit through direct adhesion, eliminating the need for separate platform structures and buffer gaskets, thereby removing gaps that cause light loss while maintaining breakage prevention
2Reliability
If a greater gap is created between the liquid crystal panel and backlight module to accommodate warpage, then the liquid crystal panel is protected from impact, but viewing angle is limited and light loss increases
Solution Approach 1:
The invention uses adjustable spring screws that allow dynamic adjustment of the distance between the liquid crystal panel and backlight module, enabling the structure to adapt to warpage while maintaining optimal viewing angles and eliminating fixed gaps that limit versatility
Solution Approach 2:
The distance parameter between the liquid crystal panel and backlight module is made variable through adjustable spring screws, allowing optimization of both impact protection and viewing angle by adjusting the gap size according to specific warpage conditions
3Reliability
If conventional supporting frames and platforms are used to fix the liquid crystal panel, then the panel is protected from breakage, but the assembly procedure becomes complex and yield rate decreases
Solution Approach 1:
The invention extracts and removes the complex supporting frame, platforms, and buffer gasket system, replacing it with a simplified direct adhesion structure where the protective layer is bonded to the liquid crystal panel, significantly reducing assembly complexity
Solution Approach 2:
Multiple separate components (protective layer, liquid crystal panel, platforms, buffer gaskets) are merged into a simplified two-component adhesion system, reducing the number of parts and assembly steps while maintaining breakage prevention functionality
4Loss of energy
If the protective layer is directly adhered to the liquid crystal panel in a full-laminated structure, then light loss is reduced and image clarity is improved, but the risk of breakage during installation increases due to tolerance for displacement
Solution Approach 1:
The invention incorporates buffer gaskets between the outer supporting frame and the liquid crystal panel assembly, providing beforehand cushioning that absorbs displacement tolerance and prevents breakage during installation while maintaining the direct adhesion structure for light loss reduction
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A direct-bonding liquid crystal display module, comprising a liquid crystal panel protection layer (1), a liquid crystal panel (2), and a backlight module (3). The liquid crystal panel protection layer (1) is bonded to the front side of the liquid crystal panel (2). The backlight module (3) is mounted on the back side of the liquid crystal panel (2). A housing support (5) is provided at the side surface of the backlight module (3) at an interval. The front side of the housing support (5) is provided with a positioning groove (51). The liquid crystal panel protection layer (1) is embedded in the positioning groove (51) and is fixedly connected thereto. The housing support (5) is fastened and connected to the back side (34) of the backlight module (3) by means of a fastener (6).