Adjustable Lamp Holder for Direct-Type Backlight Modules
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Solution Overview
Problem
Conventional direct-type backlight modules require separate lamp holders for each specific LCD type due to fixed clip intervals, leading to increased development time and cost, and assembly inefficiencies caused by inconsistent manufacturing tolerances.
Innovation Solution
A lamp holder with bendable connecting arms and adjustable lamp seats that can be bent into various shapes (U, V, or S) to accommodate lamps spaced at different intervals, allowing for flexible retention of lamps and supporting a diffusion plate with varying heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an integrally-formed lamp holder with fixed clip intervals is used, then the structure is simple and manufacturing is easy, but it can only retain lamps spaced at a predetermined interval and requires redesign for different LCD types
Solution Approach 1:
The lamp holder is divided into multiple independent lamp seat units, each capable of being retained separately on the base plate. Each lamp seat can be independently adjusted along the base plate to accommodate different lamp spacing intervals, eliminating the need for a complete redesign for different LCD types.
Solution Approach 2:
The lamp seats are made adjustable and movable along the base plate rather than being fixed in predetermined positions. This dynamic configuration allows the same lamp holder to adapt to different lamp spacing requirements for various LCD types through simple repositioning.
2Stability of the object's composition
If an integrally-formed lamp holder is used, then the structure is unified, but manufacturing tolerances cause inconsistent intervals between clips that cannot be adjusted individually
Solution Approach 1:
The unified integrally-formed structure is segmented into multiple independent lamp seat units. Each unit can be independently positioned and adjusted along the base plate, allowing individual compensation for manufacturing tolerances and precise alignment with lamps regardless of interval variations.
3Manufacturing precision
If a new lamp holder design is created for each LCD type, then the lamp holder fits the specific LCD type precisely, but development time and cost increase
Solution Approach 1:
A single universal lamp holder design with adjustable lamp seats can serve multiple LCD types with different lamp spacing requirements. The lamp seats can be repositioned along the base plate to match different intervals, eliminating the need for separate mold developments for each LCD type and significantly reducing development time and cost.
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
Enables the assembly of lamps at different intervals for various LCD types, reducing the need for new mold development, saving time and cost, and improving assembly precision by compensating for manufacturing tolerances.
Implementation Method 1
The connecting arm is bendable by the bendable portion along a horizontal direction to vary a distance between the two adjacent lamp seats
Data Source
AI summary
A direct-type backlight module and a lamp holder thereof are disclosed. The lamp holder includes a plurality of lamp seats, and a plurality of connecting arms each connected with at least one adjacent lamp seat. Each lamp seat has a retaining portion for retaining a corresponding lamp therein. Each connecting arm has a bendable portion that can be bent along a horizontal direction so as to adjust a distance between adjacent lamp seats. Therefore, the lamp holder of the present invention has a capability to retain several lamp groups spaced at different intervals for different LCD types or with lamp assembly tolerances, and thereby achieves a higher convenience in the LCD assembly.