Segmented Display Backlight Assembly for Slim, High-Contrast Illumination
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Solution Overview
Problem
Existing display devices face challenges in improving contrast ratio, reducing power consumption, and achieving a slim structure while optimizing light characteristics and distribution.
Innovation Solution
The display device incorporates a frame with a main light assembly at the bottom and side light assemblies adjacent to it, featuring a light guide panel, reflection plates, and lenses to enhance light distribution, and includes a reflection sheet to improve contrast and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a traditional backlight unit is used, then the display device can provide sufficient illumination, but the thickness of the display device increases
Solution Approach 1:
The backlight unit is divided into a main light assembly positioned at the bottom and side light assemblies positioned at the side supports. This segmentation allows light to be introduced from multiple locations (bottom and sides), enabling sufficient illumination while reducing the overall thickness required for a single large backlight unit.
Solution Approach 2:
Light introduction is transitioned from a single-plane (bottom only) to multi-dimensional positioning by adding side light assemblies at the side supports. This spatial redistribution of light sources achieves comprehensive illumination with reduced thickness in the vertical dimension.
2Illumination intensity
If conventional light distribution methods are used, then the structure is simple, but the light characteristics and distribution are insufficient
Solution Approach 1:
Different regions of the display device are provided with different light assembly configurations tailored to local requirements. The main light assembly at the bottom and side light assemblies at the sides create localized optimization of light distribution, achieving superior overall light characteristics while maintaining reasonable structural complexity.
3Illumination intensity
If the display device uses higher power consumption to improve contrast ratio, then image quality improves, but energy efficiency deteriorates
Solution Approach 1:
The invention changes the spatial parameters of light source positioning and light distribution characteristics through the multi-dimensional light assembly configuration. This optimization of light parameters achieves improved contrast ratio and image quality while reducing the total power consumption compared to conventional single-plane backlight units.
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 solution enhances the contrast ratio, improves light distribution, and achieves a slim structure by optimizing the light assembly configuration, thereby reducing power consumption.
Implementation Method 1
a light guide panel positioned between the display panel and the side support
Implementation Method 2
a reflection plate positioned at the bottom of the light guide panel
Data Source
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AI summary
A display device is disclosed. The display device of the present invention comprises: a display panel; a frame positioned at the back of the display panel; a main optical assembly positioned on the frame between the display panel and the frame; and a side optical assembly positioned on the frame between the display panel and the frame, and positioned adjacent to the main optical assembly, wherein the frame comprises: a bottom forming a lower surface; and a side support extending from the bottom toward one side of the display panel, wherein: the side support is closer to the display panel than the bottom; the main optical assembly is positioned on the bottom; and the side optical assembly can be positioned on the side support.