Touch Area Sensitivity Control in Multi-Refresh Display Panels
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Solution Overview
Problem
Display devices face power consumption issues and decreased visibility due to frequent frame conversion, especially when displaying images like movies or electronic games, which require various refresh rates.
Innovation Solution
A display device with a display driver and sensor driver that sets touch areas corresponding to display areas, adjusting touch sensitivity based on mode control signals, using different viewing angles and signal encoding to optimize power usage and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If frequent frame conversion is performed to display movies or electronic games, then image quality and responsiveness are improved, but power consumption increases
Solution Approach 1:
The display panel is divided into multiple display areas with different refresh rates. The first display area operates at a first refresh rate while the second display area operates at a second refresh rate, allowing different regions to be updated at different speeds based on their content requirements, thereby reducing overall power consumption while maintaining image quality where needed
Solution Approach 2:
The refresh rate is made dynamic and adjustable for different display areas. The display driver can selectively apply different refresh rates to different display areas based on the content being displayed, enabling the system to adapt between high performance and low power consumption modes as needed
2Adaptability or versatility
If various refresh rates are used to display different content types, then adaptability is improved, but visibility decreases
Solution Approach 1:
Different display areas are assigned different refresh rates based on their specific requirements. The first display area may use a higher refresh rate for content requiring smooth motion, while the second display area uses a lower refresh rate for static or less time-sensitive content, optimizing both adaptability and visibility across the entire display
Solution Approach 2:
The display driver selectively applies different refresh rates to different display areas in a periodic manner based on the content type being displayed, allowing the system to switch between high visibility mode and power-saving mode depending on the displayed content requirements
Data Source
AI summary
A display device includes: a display driver for displaying an image on a display panel of the display device, and generating a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area; and a sensor driver for setting a touch sensitivity of a first touch area of the display device corresponding to the first display area and a touch sensitivity of a second touch area of the display device correspond to the second display area, based on the mode control signal.