Backlight Module Prismatic Glass Frame Elimination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing backlight modules for liquid crystal displays are too thick due to the necessity of a glue frame, leading to increased manufacturing costs and complex assembly processes, which hinder the development of thinner, more efficient display designs.
Innovation Solution
A backlight module design that eliminates the glue frame by using a first prismatic glass with a display region, side walls, and junction regions to create an accommodation space for the light guide plate and reflective sheet, allowing for easier assembly and reduced thickness, along with an optical film assembly that includes a second prismatic glass and diffuser for improved light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a glue frame is used to fix the light guide plate and optical films, then the structural stability is improved, but the thickness of the backlight module increases
Solution Approach 1:
The patent merges the frame structure with the light guide plate by integrating the light guide plate's side walls to form a frame-like structure that directly holds the optical films, eliminating the need for a separate glue frame. This integration maintains structural stability while reducing overall thickness.
Solution Approach 2:
The patent extracts and removes the separate glue frame component from the backlight module structure. By taking out this unnecessary intermediate component and using the light guide plate's own structure to provide support, the design achieves thinner profile while maintaining stability.
2Strength
If a glue frame is used to assemble the backlight module components, then the structural support is improved, but the assembly process becomes more complicated
Solution Approach 1:
The patent combines the support function previously requiring a separate glue frame with the light guide plate itself. The light guide plate's side walls directly provide structural support and component positioning, simplifying the assembly process to fewer steps and components.
Solution Approach 2:
By removing the glue frame component entirely, the patent extracts the simplification benefit - the assembly process becomes simpler with fewer parts to handle, position, and secure, while the light guide plate's integrated structure provides all necessary support.
3Manufacturing precision
If a glue frame is used in the backlight module, then the component positioning is improved, but the manufacturing cost increases
Solution Approach 1:
The patent merges the positioning function of the glue frame with the light guide plate's side wall structure. The side walls provide built-in positioning features for the optical films, eliminating the need for separate positioning components and reducing manufacturing cost.
Solution Approach 2:
By extracting and removing the glue frame, the patent reduces the bill of materials and assembly steps, directly lowering manufacturing cost while the integrated light guide plate structure maintains adequate component positioning precision.
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
This design achieves a thinner backlight module with simplified assembly, reduced manufacturing costs, and enhanced light intensity and uniformity, promoting the development of narrow frame designs and improved display quality.
Implementation Method 1
An inner side of the side wall of the first prismatic glass is coated with a reflective layer, and the reflective layer reflects light entering a surface thereof back into the light guide plate.
Implementation Method 2
the optical film assembly comprises a first prismatic glass... the first prismatic glass comprises a display region, two side walls, a junction region
Data Source
AI summary
The present invention provides a backlight module, comprising an optical film assembly, a light guide plate, a reflective sheet, and the optical film assembly comprises a first prismatic glass, and the first prismatic glass comprises a display region, two side walls, a junction region, and the display region and the reflective sheet are oppositely located, and the side wall is formed by the display region extending downward, and the side wall is connected between the display region and the junction region to form an accommodation space, and the light guide plate and the reflective sheet stack up together inside the accommodation space, and the light guide plate is located between the reflective sheet and the optical film assembly, and the reflective sheet is located between the light guide plate and the junction region.