Curved Display Backlight Light Source Orientation
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Solution Overview
Problem
Curved display devices face challenges in achieving a slim structure while maintaining sufficient light incidence and display quality, leading to potential deterioration in image presentation.
Innovation Solution
A curved display device design featuring a backlight assembly with a light guiding plate having a curved shape, divided into sections with differently arranged light sources and a printed circuit board, allowing for a slim structure while ensuring adequate light distribution to the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the light guiding plate is made slim to achieve a thin curved display device, then the overall device thickness is reduced, but the amount of light incident to the light guiding plate may be insufficient
Solution Approach 1:
The patent applies local quality by varying the arrangement and orientation of light sources at different locations along the curved light guiding plate. Specifically, light sources are arranged with different long-side directions in different sections to optimize light incidence locally while maintaining overall device slimness.
Solution Approach 2:
The patent resolves the contradiction by transitioning from a single-dimensional thickness reduction to a multi-dimensional light source arrangement strategy. Light sources are positioned and oriented in multiple directions along the curved plate, utilizing spatial distribution in length, width, and orientation dimensions to compensate for reduced thickness.
2Illumination intensity
If light sources are arranged in multiple rows to increase light incidence, then the amount of light is sufficient, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the light guiding plate into multiple sections along the curved direction, with different light source arrangements in each section. This allows complex light distribution to be achieved through modular, manageable segments rather than a uniformly complex structure.
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 design achieves a slim structure for the curved display device while maintaining high display quality by optimizing light incidence, preventing deterioration and enhancing the three-dimensional effect and immersion for viewers.
Implementation Method 1
a light guiding plate having a curved shape and guiding the light provided from the light sources to the display panel
Data Source
AI summary
A curved display device includes a display panel having a curved shape and including a display area having a curved surface and a backlight assembly providing a light to the display panel. The backlight assembly includes a plurality of light sources, a printed circuit board on which the light sources are mounted, and a light guiding plate. The light guiding plate has a curved shape and guides the light provided from the light sources to the display panel. The light sources are sequentially arranged along the curved direction of the light guiding plate, and a longitudinal direction of at least one of the light sources is different from a longitudinal direction of the other light sources.