Display Interface Resolution Switching for Lower Power Consumption
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Solution Overview
Problem
Unintended power consumption occurs in electronic devices when displaying high-resolution images due to the frequency of data signals exchanged between components, necessitating control of data signal resolution and frequency based on driving mode.
Innovation Solution
An electronic device with a processor and display device that maintains a constant frequency of data signals by adjusting the resolution of interfacing data based on driving mode, using a graphics processing unit to convert raw image data into rendering data and a memory to generate first data, and an interfacing unit to convert this data into interfacing data for the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution image is displayed, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the data signal resolution adjustable based on driving mode. The system dynamically switches between first resolution (for first mode) and second resolution (for second mode), allowing the resolution to adapt to different operational requirements. This dynamic adjustment enables the system to use lower resolution when high image quality is not required, thereby reducing power consumption while maintaining the capability for high-resolution display when needed.
Solution Approach 2:
The patent changes the resolution parameter of the data signal based on driving mode. In the first mode, the data signal maintains the first resolution, while in the second mode, it switches to the second resolution. This parameter change allows the system to optimize power consumption by using appropriate resolution levels for different driving scenarios, directly addressing the contradiction between image quality and power usage.
2Speed
If data signal frequency is increased, then data transmission speed is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the resolution of the data signal based on driving mode, which indirectly affects the data transmission requirements. By using lower resolution in the second mode, the system reduces the amount of data that needs to be transmitted, thereby reducing the effective data transmission speed requirement and associated power consumption, while maintaining constant clock frequency.
Solution Approach 2:
The patent extracts only the necessary data transmission rate by adjusting resolution. Instead of always transmitting at maximum resolution and frequency, the system extracts and transmits only the required amount of data at the appropriate resolution level, reducing unnecessary power consumption related to high-speed data transmission when full performance is not needed.
3Use of energy by moving object
If data signal resolution is reduced, then power consumption is reduced, but image quality deteriorates
Solution Approach 1:
The system dynamically switches between first resolution and second resolution based on driving mode, ensuring that image quality is maintained at the appropriate level for each mode. The first resolution is used when high image quality is required, while the second resolution is used when power consumption is the priority and lower image quality is acceptable, thus resolving the contradiction through mode-dependent adaptation.
Solution Approach 2:
The patent changes the resolution parameter of the data signal based on driving mode requirements. By switching between first resolution and second resolution, the system optimizes the balance between power consumption and image quality, using lower resolution only when the driving mode indicates that reduced image quality is acceptable in exchange for lower power consumption.
Data Source
AI summary
An electronic device includes a display device including a data driver integrated circuit converting interfacing data into second data and a display panel displaying an image based on the second data; and a processor processing raw image data to provide the interfacing data to the display device. The processor further maintains a resolution of the interfacing data at a first resolution, which is a resolution of the raw image data, in a first mode, changes the resolution of the interfacing data to a second resolution different from the first resolution in a second mode different from the first mode, and maintains a frequency of the interfacing data constant.