LCD Module Reinforcement Plate Molding Holes for Size Reduction
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Solution Overview
Problem
Conventional LCD modules for portable terminals have a limited size reduction due to their assembly structure, which includes a side wall of the frame between the LCD panel and the reinforcement plate, increasing the overall thickness and hindering miniaturization efforts.
Innovation Solution
The LCD module design features a reinforcement plate with molding holes extending into both the bottom and side surfaces, allowing the frame to be firmly fixed without extending up to the LCD panel's side surface, thereby reducing the overall width and length of the portable terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a side wall of the frame is extended between the LCD panel and the reinforcement plate, then the structural integrity is improved, but the overall size of the portable terminal increases
Solution Approach 1:
The molding holes are positioned at the boundary portion between the bottom surface and side surface of the reinforcement plate, utilizing the corner region to achieve both structural support and size reduction. This spatial reconfiguration allows the frame to be fixed without extending the side wall between the LCD panel and reinforcement plate.
Solution Approach 2:
The molding holes serve as an intermediary fixing mechanism, introducing a new fixation method that replaces the need for an extended side wall. The holes provide alternative anchoring points for the frame, achieving structural integrity through a different mechanical pathway.
2Strength
If the frame is fixed by insert molding to the side surface of the reinforcement plate, then the fixing strength is improved, but the thickness of the LCD module increases
Solution Approach 1:
The molding holes are positioned at the boundary portion between the bottom surface and side surface rather than requiring the side wall to extend vertically. This allows the frame to be fixed with reduced thickness by utilizing the corner boundary region for anchoring.
Solution Approach 2:
The fixing function is segmented into multiple molding holes distributed at the boundary portion, rather than relying on a continuous extended side wall. This segmentation allows fixation strength to be achieved through distributed anchoring points with reduced overall thickness.
3Ease of manufacture
If molding holes are provided only in the bottom surface of the reinforcement plate, then the manufacturing process is simplified, but the fixing reliability is reduced
Solution Approach 1:
The molding holes are specifically positioned at the boundary portion between the bottom surface and side surface, utilizing the corner region's unique geometric properties. This local positioning provides enhanced fixing reliability by anchoring the frame at the reinforcement plate's corner, which offers superior mechanical interlocking compared to holes positioned only on flat surfaces.
Data Source
AI summary
A portable terminal including a Liquid Crystal Display (LCD) module is provided. The LCD module includes a reinforcement plate having a bottom surface and a side surface bent to extend from the bottom surface, wherein the reinforcement plate comprises a plurality of molding holes provided in a boundary portion between the bottom surface and the side surface of the reinforcement plate, a backlight unit coupled to an upper part of the reinforcement plate, a frame molded to the reinforcement plate, and an LCD panel coupled to an upper part of the backlight unit, wherein each of the plurality of molding holes extends into both the bottom surface and the side surface from the boundary portion between the bottom surface and the side surface.