LED Array Backlighting for Compact Display Devices
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Solution Overview
Problem
Current backlighting systems are expensive and have a large depth size or thickness, necessitating a reduction in costs and volume while maintaining effective display capabilities.
Innovation Solution
Integrating the light source and circuitry of a display device to function as both the display and backlighting system, utilizing a Light Emitting Diode (LED) array for both image content and ambient light, thereby reducing the number of components and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate backlighting systems are used, then effective display capabilities are achieved, but manufacturing costs increase and depth size increases
Solution Approach 1:
The patent combines the display device and backlighting device into a single integrated unit. The display device includes a display panel and the backlighting device includes a light source, where the light source is positioned to provide backlighting to the display panel. This merging eliminates the need for separate backlighting systems, thereby reducing manufacturing costs and depth size while maintaining effective display capabilities.
Solution Approach 2:
The integrated device performs multiple functions: the display panel displays image content while the light source provides backlighting. The same housing and structural components serve both the display function and the backlighting function, reducing the overall number of components and manufacturing complexity.
2Reliability
If separate backlighting systems are used, then effective display capabilities are achieved, but depth size increases
Solution Approach 1:
The patent combines the display device and backlighting device into a single integrated unit. The display device includes a display panel and the backlighting device includes a light source, where the light source is positioned to provide backlighting to the display panel. This merging eliminates the need for separate backlighting systems, thereby reducing manufacturing costs and depth size while maintaining effective display capabilities.
3Adaptability or versatility
If separate circuitries are used for display and backlighting, then functional independence is achieved, but device complexity increases
Solution Approach 1:
The patent merges the circuitry of the display device and backlighting device into a single integrated circuit board. The circuit board includes both display circuitry and backlighting circuitry, allowing for functional independence while reducing the overall number of components and simplifying the device architecture.
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 approach results in lower manufacturing costs and reduced depth size or thickness of the display device, achieving a more compact and cost-effective solution for backlighting while maintaining immersive viewing experiences.
Implementation Method 1
A second Light Emitting Diode of the Light Emitting Diode array is configured to emit the ambient light
Implementation Method 2
utilizing a Light Emitting Diode (LED) array for both image content and ambient light
Data Source
AI summary
A display device (10, 20, 30) is provided, the display device (10, 20, 30) comprising an LED array (33, 35, 12) working both as a backlight source for an LCD panel (31) and as an ambient light source providing ambient light with properties dependent on the image content presented by the LCD panel (31). A corresponding method and computer program product is also provided.