Backlight Module Light-Guiding Element Protrusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices suffer from light leakage issues in a dark state, which affects display quality and requires improvements in contrast and brightness.
Innovation Solution
The electronic device incorporates a backlight module with a light-guiding plate and a light-guiding element featuring a protruding structure that faces the light-guiding plate, enhancing light concentration to a positive viewing angle and including an absorption layer to reduce interference light, thereby increasing contrast and brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional backlight module is used, then the device structure is simple, but light leakage occurs in dark state affecting display quality
Solution Approach 1:
A light-guiding element is introduced as an intermediary component between the light source and display panel. This element includes a protruding structure that redirects stray light, effectively reducing light leakage in dark states without requiring complete redesign of the backlight module
Solution Approach 2:
The light-guiding element features a protruding structure with specific local geometric properties that selectively redirect light in certain directions while allowing other light to pass through. This localized structural modification addresses light leakage without complicating the entire backlight system
2Illumination intensity
If light concentration to positive viewing angle is enhanced, then brightness and contrast are improved, but light distribution uniformity may be affected
Solution Approach 1:
The protruding structure's geometric parameters (height, width, shape) are optimized to control light redirection angles. By adjusting these parameters, the system achieves enhanced brightness and contrast at positive viewing angles while maintaining acceptable light distribution uniformity across the display
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 configuration effectively reduces light leakage, enhances contrast and brightness, and supports high dynamic range imaging (HDR) by optimizing light distribution and absorption of interference light.
Implementation Method 1
a light-guiding element, and the light-guiding element is disposed under the light-guiding plate. The light-guiding element has a protruding structure, and the protruding structure faces the light-guiding plate
Implementation Method 2
The light-guiding element is disposed under the light-guiding plate, and the light-guiding element has polarization characteristics
Data Source
AI summary
An electronic device is provided. The electronic device includes a backlight module. The backlight module includes a light-guiding plate and a light-guiding element, and the light-guiding element is disposed under the light-guiding plate. In addition, the light-guiding element has a protruding structure, and the protruding structure faces the light-guiding plate.