Multi-Voltage LED Backlight Panel for Lower Display Power Use
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Solution Overview
Problem
Existing backlight panels inefficient in terms of power consumption due to applying the same voltage to LEDs of different colors, which leads to suboptimal power efficiency.
Innovation Solution
Applying different voltages to LEDs of different colors in the backlight panel to optimize power consumption and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the same voltage is applied to all LEDs in the backlight panel, then the circuit design is simple and easy to control, but the power consumption is inefficient and suboptimal
Solution Approach 1:
The patent divides the backlight panel into multiple regions or groups of LEDs, where each region can be controlled with different voltages. This segmentation allows the system to optimize power consumption for each region while maintaining overall control simplicity through modular architecture.
Solution Approach 2:
Different regions of the backlight panel are assigned different voltage levels based on their specific requirements. This local quality approach enables each region to operate at the optimal voltage for its LED characteristics, improving overall power efficiency while maintaining a relatively simple control structure.
2Use of energy by moving object
If different voltages are applied to LEDs of different colors, then power consumption efficiency is improved, but the device complexity increases due to multiple power lines and control circuitry
Solution Approach 1:
Multiple power lines for different LED colors are merged into a unified power distribution system that can selectively apply different voltages to different regions. This merging approach reduces the number of separate control circuits while maintaining the ability to optimize power consumption for each LED type.
Solution Approach 2:
The power circuitry is designed with multi-functionality to handle different voltage requirements for different LED colors through a single integrated system. This universal approach allows the same power circuitry to serve multiple purposes, reducing overall device complexity while maintaining power efficiency.
3Adaptability or versatility
If different voltages are applied to different color LEDs, then the range of colors and gradation levels is enhanced, but the control precision requirements increase
Solution Approach 1:
The system dynamically adjusts voltage levels for different LED regions based on real-time requirements. This dynamic control enables enhanced color range and gradation levels while managing control precision through adaptive algorithms that adjust voltage based on actual display needs rather than requiring fixed high-precision control.
Solution Approach 2:
The patent utilizes parameter changes in voltage levels to achieve different color outputs and gradation levels. By systematically varying voltage parameters across different regions and time periods, the system enhances color capability while managing control complexity through structured parameter adjustment rather than requiring extreme precision.
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
Improves power efficiency by reducing power consumption and enhancing the range of colors and gradation levels that can be represented by the display device.
Implementation Method 1
a backlight panel comprising light emitting diodes (LEDs) which are configured to emit lights with different colors
Data Source
AI summary
According to an embodiment, a display device includes a display panel, a backlight panel including light emitting diodes (LEDs) which are configured to emit lights with different colors, the LEDs comprising a first LED and a second LED, pixel control circuitry connected to cathodes of the LEDs, and power circuitry connected to power lines respectively connected to anodes of the LEDs. The power circuitry is configured to apply a first voltage for driving the first LED among the LEDs, to a first power line connected to the first LED among the power lines. The power circuitry is configured to apply a second voltage for driving the second LED among the LEDs, to a second power line connected to the second LED among the power lines. The second voltage is different from the first voltage.