Curved Multi-Panel Display Backlight Layout for Uniform Illumination
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Solution Overview
Problem
There is a need for display devices with larger screens composed of multiple display panels that can be efficiently integrated into curved surfaces, such as vehicle dashboards, while maintaining optimal light distribution and assembly ease.
Innovation Solution
A display device design featuring a translucent front plate with multiple bonded display panels, each smaller than the front plate, paired with a backlight unit comprising light guide plates and a light source. The light guide plates are disposed in one-to-one correspondence with the display panels, and a flexible light source is used to ensure even light distribution across the curved surface, reducing manufacturing costs and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display panels are bonded to a curved front plate to create a larger screen, then the screen area is increased, but the light distribution uniformity deteriorates
Solution Approach 1:
The backlight unit is divided into multiple light guide plates, with each light guide plate corresponding to one display panel. This segmentation allows independent optimization of light distribution for each panel region, ensuring uniform illumination across the entire curved surface while maintaining the large screen area achieved by bonding multiple panels.
2Area of stationary object
If multiple display panels are bonded to a curved front plate to create a larger screen, then the screen area is increased, but the assembly complexity increases
Solution Approach 1:
The backlight unit is segmented into multiple light guide plates that can be independently assembled and adjusted. Each light guide plate corresponds to a specific display panel, allowing for modular assembly that reduces overall complexity compared to a single large backlight unit, while still achieving the desired large screen area through the bonded panel configuration.
3Illumination intensity
If light guide plates are disposed in one-to-one correspondence with display panels, then light distribution is improved, but the device complexity increases
Solution Approach 1:
Each light guide plate is specifically designed and positioned to correspond to its associated display panel, optimizing light distribution locally for each panel region. This local quality approach improves overall light distribution uniformity across the curved surface while maintaining manageable device complexity through the systematic one-to-one correspondence between light guide plates and display panels.
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 allows for a larger screen area with reduced visual boundaries between display regions, improved light distribution, and easier assembly, enhancing the display device's functionality and usability in curved environments like vehicle dashboards.
Implementation Method 1
a backlight unit comprising a plurality of light guide plates disposed facing the respective display panels in one-to-one correspondence and a light source configured to cause light to be incident on the light guide plates
Data Source
AI summary
A display device having a curved display surface is provided and includes a back cover; a plurality of light guide plates supported by the back cover; a plurality of light sources configured to cause light to be incident on the light guide plates; and an optical sheet covering the light guide plates, wherein the optical sheet faces the light guide plates.