Backlight Frame Structure Reducing LCD Width and Thickness
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Solution Overview
Problem
Existing liquid crystal display (LCD) designs for hand-held electronic devices fail to simultaneously reduce both the width and thickness, and the adhesion force between the backlight module and display panel is insufficient, leading to separation issues.
Innovation Solution
A backlight module with a frame structure featuring a border component, first convex, and second convex, where the first convex protrudes inward along one direction and the second convex protrudes inward along a perpendicular direction, forming a ladder-like structure, which reduces the width in the horizontal direction and thickness in the vertical direction, and enhances adhesion using tape layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If non-sunken design or sunken design is used as the inner structure of the LCD, then either the width or the thickness of the hand-held electronic apparatus can be reduced, but it fails to reduce the width and the thickness simultaneously
Solution Approach 1:
The patent introduces a three-dimensional stepped structure with first and second convex portions at different heights, transforming a two-dimensional flat frame into a multi-level configuration. This dimensional change allows the frame to occupy less space in both width and thickness directions simultaneously, resolving the contradiction between reducing width and reducing thickness
2Length of moving object
If sunken design is used as the inner structure of the LCD, then the width can be reduced, but the adhesion force provided by the tape is too weak to prevent the backlight module from being apart from the display panel
Solution Approach 1:
The patent adds vertical dimension to the frame structure by creating stepped convex portions at different heights. This three-dimensional structure provides multiple adhesion surfaces for the tape, increasing the total adhesion area and strength while maintaining reduced width, thus resolving the contradiction between width reduction and adhesion force maintenance
Data Source
AI summary
A backlight module includes a light-guiding plate, a back-light source disposed at a side of the light-guiding plate, and a frame structure disposed surrounding the light-guiding plate. The frame structure includes a border component, at least one first convex, and at least one second convex. The border component includes at least one first border and at least one second border. The first border and the second border are adjacent to each other and distributed along a first direction and a second direction respectively. The first convex protrudes from the inner surface of the first border and extends inward along the second direction. The second convex protrudes from the inner surface of the second border and extends inward along the first direction. The first direction is vertical to the second direction, and the top of the vertical height of the first convex is lower than that of the second convex.