Backlight Board With Integrated Switches for Compact LED Layout
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Solution Overview
Problem
Control switches in existing backlight boards occupy excessive space, leading to low space utilization and integration levels, affecting the brightness and arrangement of LEDs.
Innovation Solution
A backlight board design integrating multiple control switches within a packaging block, each control switch connected in series with a light-emitting device, and a control circuit controlling their connection or disconnection, with shared terminals to reduce space occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control switches are individually arranged for each light-emitting device, then each device can be controlled independently, but the control switches occupy excessive space leading to low space utilization
Solution Approach 1:
Multiple control switches are integrated into a single packaging block, merging what would otherwise be separate components into one unified structure. This reduces the total space occupied while maintaining the ability to control each light-emitting device independently through the integrated switches.
Solution Approach 2:
The packaging block serves multiple functions: it houses multiple control switches simultaneously and provides a unified mounting structure. This multi-functional design reduces the number of separate components needed, thereby reducing overall space occupation while preserving individual control capabilities.
2Ease of operation
If control switches are individually arranged for each light-emitting device, then each device can be controlled independently, but the integration level of the backlight board is reduced
Solution Approach 1:
By merging multiple control switches into a single packaging block, the design reduces component proliferation and improves integration level. The unified structure makes the overall system less complex while maintaining the functional capability to control each light-emitting device independently.
3Ease of operation
If control switches are arranged in the backlight board, then light emission can be controlled, but the control switches affect light reflection at their positions reducing brightness
Solution Approach 1:
Integrating multiple control switches into a single packaging block consolidates the components that affect light reflection. This reduces the total area occupied by control switches on the backlight board, thereby minimizing their impact on light reflection and improving overall brightness.
Data Source
AI summary
A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.