Display Backlight Board Bars for Uniform Luminance
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Solution Overview
Problem
Existing display apparatuses face challenges in achieving luminance uniformity, increased product costs, and complex manufacturing processes due to the design and arrangement of light sources.
Innovation Solution
The display apparatus incorporates a light source board with board bars and protrusions that house light sources, arranged in a specific configuration to enhance luminance uniformity and simplify manufacturing, while reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If light sources are arranged on a conventional flat board, then the manufacturing process is simple, but luminance uniformity is poor
Solution Approach 1:
The light source board is segmented into multiple board bars arranged in parallel, each carrying multiple light sources. This segmentation allows for better distribution of light sources across the display panel area, improving luminance uniformity while keeping each board bar relatively simple in structure for manufacturing
Solution Approach 2:
The board structure transitions from a conventional flat 2D plane to a 3D configuration with board bars extending in multiple directions and light sources positioned at different heights and locations. This dimensional change enables more flexible light source arrangement to achieve uniform luminance distribution
2Manufacturing precision
If light sources are densely arranged to improve luminance uniformity, then luminance uniformity improves, but manufacturing complexity and cost increase
Solution Approach 1:
By dividing the light source array into multiple board bars with multiple light sources each, the system achieves dense light source distribution for improved luminance uniformity while maintaining modular manufacturing simplicity
Solution Approach 2:
The board bar structure serves multiple functions: it provides mechanical support for multiple light sources, enables flexible arrangement patterns, and simplifies manufacturing through standardized modular components that can be produced efficiently
3Manufacturing precision
If a complex light source arrangement is used to achieve luminance uniformity, then luminance uniformity improves, but manufacturing cost increases
Solution Approach 1:
The segmented board bar design enables standardized mass production of modular components, reducing per-unit manufacturing costs while achieving the complex light source arrangement needed for luminance uniformity
Solution Approach 2:
Multiple light sources are merged onto single board bars, allowing for efficient manufacturing processes and reduced assembly steps, thereby lowering overall manufacturing costs while maintaining improved luminance uniformity
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 configuration improves luminance uniformity and reduces production costs by optimizing the arrangement of light sources, leading to a more efficient and cost-effective manufacturing process.
Implementation Method 1
Each of the plurality of light sources includes a light emitting diode (LED) or an organic light emitting diode (OLED)
Implementation Method 2
Each of the plurality of light sources includes a light emitting diode (LED) or an organic light emitting diode (OLED)
Data Source
AI summary
A display apparatus includes: a display panel; a plurality of light sources configured to emit light to the display panel; and a light source board on which the plurality of light sources are mounted, the light source board including: a board body extending in a first direction; and a plurality of board bars connected to a side of the board body that is in a second direction different from the first direction, the plurality of board bars spaced apart from each other along the first direction, wherein each of the plurality of board bars includes: a central extending portion extending in the second direction; a plurality of first protrusions protruding from a first side of the central extending portion; and a plurality of second protrusions protruding from a second side of the central extending portion, opposite to the first side.