Segmented Backlight Light Guide Panels for Display Devices
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Solution Overview
Problem
The existing display devices face challenges in maintaining high image quality with reduced light transmittance, requiring an efficient backlight unit that enhances light efficiency, reliability, and reduces power consumption while improving spatial efficiency.
Innovation Solution
A display device configuration that includes a display panel, a frame, first and second light sources, substrates, and light guide panels to optimize light distribution and reduce power consumption, with the light guide panels positioned on the substrates and light sources to enhance light efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the image quality is enhanced from 4K to 8K, then the image resolution is improved, but the light transmittance of the display panel is degraded
Solution Approach 1:
The backlight unit is segmented into multiple light sources (first light source and second light source) positioned at different locations, with corresponding light guide panels (first light guide panel and second light guide panel) to distribute light more effectively across the display panel, compensating for reduced light transmittance in high-resolution displays
Solution Approach 2:
Multiple light sources and light guide panels are combined in a coordinated arrangement where the first and second light sources work together with their respective light guide panels to provide sufficient overall light output to the display panel, maintaining brightness despite lower light transmittance
2Illumination intensity
If more light is provided to the display panel to maintain constant brightness, then the brightness is maintained, but the power consumption increases
Solution Approach 1:
Different light sources are positioned at specific locations (first light source between display panel and frame, second light source adjacent and spaced apart) to optimize light distribution locally, ensuring efficient light delivery to different regions of the display panel and reducing overall power consumption
3Area of stationary object
If the light sources are positioned closer together to reduce space, then the spatial efficiency is improved, but the light distribution uniformity is degraded
Solution Approach 1:
The light sources are positioned asymmetrically with the second light source adjacent to but spaced apart from the first light source, creating an optimized light distribution pattern that maintains uniformity across the display panel while efficiently utilizing the available space between the display panel and frame
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 improves light efficiency and reliability of the backlight unit, reduces power consumption, and enhances spatial efficiency, effectively addressing the challenges of maintaining high image quality with reduced light transmittance.
Implementation Method 1
a first light guide panel positioned on the substrate and the first light source; and a second light guide panel positioned on the substrate and the second light source
Data Source
AI summary
A display device is disclosed. The display device of the present disclosure comprises: a display panel; a frame positioned behind the display panel; a first light source positioned between the display panel and the frame and providing light to the display panel; a second light source adjacent to and spaced apart from the first light source; a substrate on which the first light source and the second light source are mounted and which is positioned in front of the frame; a first light guide plate positioned on the substrate and the first light source; and a second light guide plate positioned on the substrate and the second light source and spaced apart from the first light guide plate.