Backlight Module Fixture With Bent Portion For Narrow Bezel
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Solution Overview
Problem
Existing backlight modules for liquid crystal displays face challenges in achieving a narrow bezel design without compromising mechanical strength or stability, as conventional designs either require removing the backboard or narrowing the plastic frame, leading to instability and difficulty in fixing the plastic frame during assembly.
Innovation Solution
A fixture for the backlight module is introduced, featuring a backboard with a bottom board, sidewall, and a bent portion that securely engages with the plastic frame's opening, allowing for a robust and durable assembly by avoiding the need for a retainer on the sidewall and enabling easy integration of the driving circuit within the sidewall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the driving circuit is directly mounted onto the sidewall of the backboard to achieve narrow bezel, then the bezel width is reduced, but the plastic frame cannot be securely fixed to the backboard
Solution Approach 1:
The backboard is divided into two functional parts: the sidewall for mounting the driving circuit and the bent portion for securing the plastic frame. This segmentation allows the driving circuit to be mounted on the sidewall for narrow bezel while the bent portion provides secure fixing for the plastic frame, resolving the contradiction between reduced bezel width and fixing stability.
2Length of moving object
If the plastic frame is narrowed to achieve thin bezel, then the bezel thickness is reduced, but the mechanical strength and stability are compromised
Solution Approach 1:
Instead of narrowing the plastic frame in the horizontal dimension, the solution adds a vertical dimension by introducing a bent portion that extends downward from the backboard. This allows the plastic frame to maintain its original thickness for mechanical strength while the bent portion provides additional securing capability, effectively solving the thin bezel requirement without compromising strength.
3Ease of manufacture
If the retainer is removed from the backboard sidewall to accommodate the driving circuit, then the driving circuit can be mounted, but the plastic frame cannot be securely assembled
Solution Approach 1:
The backboard is segmented into the sidewall region for driving circuit mounting and the bent portion region for plastic frame securing. This segmentation allows the driving circuit to be mounted on the sidewall without requiring a retainer, while the bent portion independently provides the necessary securing function, simplifying manufacturing while maintaining assembly integrity.
Data Source
AI summary
The present invention is related to a technology of liquid crystal display, and specially to a fixture incorporated in a backlight module for the liquid crystal display. The fixture for backlight module comprises a backboard having a bottom board, a sidewall, and a bent portion. The sidewall has a first end and a second end, and the bottom board being interconnected with the first end. The bent portion is interconnected to the second end, and arranged on an outside of the sidewall, and creates an angle with respect to the sidewall. A plastic frame is defined with opening aligned and enveloped onto the bent portion so as to securely assemble the plastic frame to the backboard. The advanced and preferred interengagement between the backboard and the plastic frame can not only readily implement into the backlight module in which the light strip and backboard are made individually, but also can be fitted into the backlight module in which the backboar is integrally formed with driving circuit for light strip. The fixture can be readily facilitated by the existing technology and the assembly is easy while the overall configuration is robust and durable.