Dynamic Voltage Multiplication in Display Drive Modules
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Solution Overview
Problem
Conventional display devices face inefficiencies in voltage signal management, leading to electric quantity loss and increased power consumption due to mismatched voltage signals from power and driver chips, which affects overall display performance.
Innovation Solution
A drive module with a mainboard, power chip, and driver chip that dynamically adjusts voltage signals by determining the current display mode, calculating optimal voltage multiplying relationships, and generating corresponding base voltages to match target values, thereby improving voltage conversion efficiency and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the power chip and driver chip provide fixed voltage signals, then the device structure is simple, but the voltage signal does not match the actual display requirements causing electric quantity loss
Solution Approach 1:
The patent implements dynamic voltage adjustment by enabling the driver chip to dynamically select different voltage multiplying relationships based on the current display mode. The voltage output is no longer fixed but adapts in real-time to match the actual display requirements, thereby reducing electric quantity loss while maintaining manageable system complexity through software-controlled adaptation.
Solution Approach 2:
The patent changes the voltage parameter by introducing multiple voltage multiplying relationships (e.g., 1×, 1.5×, 2×, 2.5×, 3×) that can be selectively applied based on display mode. This allows the system to optimize voltage output parameters for different operating conditions, reducing energy loss without requiring a completely new hardware architecture.
2Reliability
If the voltage signal is increased to ensure sufficient power supply, then the power supply reliability is improved, but the power consumption increases
Solution Approach 1:
The system dynamically adjusts the voltage multiplying relationship based on the current display mode and actual power requirements. Instead of using a fixed high voltage to ensure reliability, the system selects the appropriate voltage level in real-time, ensuring sufficient power supply when needed while minimizing power consumption during normal operation.
Solution Approach 2:
The patent introduces variable voltage multiplying parameters that can be changed according to operating conditions. The main control unit selects from multiple predefined voltage multiplying relationships, allowing the system to maintain power supply reliability by choosing higher multiplication factors when required, while using lower factors to reduce power consumption during standard operation.
3Productivity
If multiple voltage multiplying relationships are supported, then the voltage conversion efficiency is improved, but the device complexity increases
Solution Approach 1:
The driver chip is designed with multi-functionality to support multiple voltage multiplying relationships within a single device. Rather than requiring separate hardware circuits for each voltage level, the universal driver chip can perform different voltage multiplication functions by selecting from predefined relationships, improving conversion efficiency while avoiding the complexity of multiple dedicated circuits.
Solution Approach 2:
The patent replaces complex mechanical or hardware-based voltage switching mechanisms with software-controlled selection of voltage multiplying relationships. The main control unit uses digital processing to select and apply the appropriate voltage multiplication factor, substituting physical complexity with computational simplicity and achieving high conversion efficiency through algorithmic optimization.
Data Source
AI summary
Provided are a drive module, a voltage generation method thereof, and a display device. The drive module includes a mainboard, a power chip, and a driver chip. The driver chip includes a main control unit and a base voltage generation unit. The main control unit is configured to determine the target value of a base voltage in the current drive display mode according to the current drive display mode, determine the optimal voltage multiplying relationship of the base voltage in the current drive display mode according to an analog reference voltage signal and the target value of the base voltage, calculate the actual output value of the base voltage according to the analog reference voltage signal and the optimal voltage multiplying relationship, and generate first instruction information including the actual output value. The base voltage generation unit generates the corresponding base voltage according to the first instruction information.