Backlight Module Mura Reduction via Depth Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies suffer from Mura (light shadow) issues due to uneven brightness, which are exacerbated when viewing from certain angles, leading to inefficient observation experiences.
Innovation Solution
A backlight module design featuring a light source module, a light box module with adjustable depth, and a film assembly that can move within the light box module, surrounded by trapezoid planes and connected via a flexible frame system, allowing for precise adjustment to mitigate Mura effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a uniform direct light box structure is used, then the structure is simple and easy to manufacture, but Mura (light shadow) occurs when viewing from certain angles, reducing observation efficiency
Solution Approach 1:
The patent introduces a movable film assembly that can adjust its position in the depth direction within the light box module. This dynamic adjustment capability allows the system to optimize light distribution for different viewing angles, resolving the contradiction between simple uniform structure and effective multi-angle observation by enabling structural adaptability without complicating the overall design
2Ease of manufacture
If the light box module has a fixed depth structure, then the manufacturing process is simple, but it cannot effectively solve Mura issues when viewing from different angles
Solution Approach 1:
The film assembly is designed to be movable along the depth direction, transforming the fixed depth structure into a dynamic one. This allows the same light box module to adapt to different viewing requirements by adjusting the film position, thereby achieving multi-angle viewing adaptability while keeping the base structure simple and easy to manufacture
Solution Approach 2:
The patent changes the depth parameter of the light box module dynamically by moving the film assembly to different positions. This parameter adjustment enables the system to optimize light path and distribution for various viewing angles, solving the Mura problem without requiring multiple fixed-depth modules with different manufacturing processes
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
The adjustable backlight module effectively reduces Mura issues by allowing for customizable depth adjustments, enhancing observation efficiency across various viewing angles.
Implementation Method 1
a light box module, used for reflecting light emitted from the light source module
Data Source
AI summary
The invention provides a backlight module, comprising: a light source module used for emitting light; a light box module used for reflecting light emitted from the light source module, and the light box module includes two openings and a size of a second opening is bigger than a first opening, and the light source module is disposed at the first opening; a display panel component is disposed at the second opening and applied in displaying images; a film assembly disposed in the light box module, can be moved within a depth direction between the light source module and the display panel component.