Display Screen Controller Dynamic Frame Rate Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display devices have a fixed response time based on hardware performance, leading to increased power consumption and reduced module lifespan when switching between TV and PC modes.
Innovation Solution
An apparatus and method that dynamically adjust the display frame rate based on the mode of the input image signal and the characteristics of the display module, using a screen controller with a mode determining unit, microprocessor, memory controller, and driver timing controller to vary the frame rate and power supply accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the frame rate is fixed based on hardware performance, then the device structure is simple, but power consumption increases and module lifespan decreases
Solution Approach 1:
The patent implements dynamic frame rate adjustment by introducing a screen controller that automatically changes the frame rate based on the detected motion degree of the displayed content. The system transitions from a static, fixed frame rate to a dynamic, adaptive frame rate that varies with content requirements, thereby reducing power consumption during static displays while maintaining high frame rates for motion-intensive content.
Solution Approach 2:
The patent changes the frame rate parameter based on the type of content being displayed. By detecting whether the content is static or moving, the system adjusts the frame rate parameter accordingly - using lower frame rates for static content to save power and higher frame rates for moving content to maintain quality, thus resolving the power consumption issue without sacrificing display performance.
2Device complexity
If the frame rate is fixed based on hardware performance, then the device structure is simple, but module lifespan decreases
Solution Approach 1:
The patent implements dynamic frame rate adjustment by introducing a screen controller that automatically changes the frame rate based on the detected motion degree of the displayed content. The system transitions from a static, fixed frame rate to a dynamic, adaptive frame rate that varies with content requirements, thereby reducing power consumption during static displays while maintaining high frame rates for motion-intensive content.
Solution Approach 2:
The patent changes the frame rate parameter based on the type of content being displayed. By detecting whether the content is static or moving, the system adjusts the frame rate parameter accordingly - using lower frame rates for static content to save power and higher frame rates for moving content to maintain quality, thus resolving the power consumption issue without sacrificing display performance.
3Use of energy by stationary object
If the frame rate is dynamically adjusted based on content motion, then power consumption is reduced, but the control system complexity increases
Solution Approach 1:
The patent implements a self-service control mechanism where the screen controller automatically detects the motion degree of displayed content and adjusts the frame rate without requiring user intervention or complex external control systems. The system serves itself by using its own resources to monitor content characteristics and make autonomous decisions about frame rate adjustment, thereby reducing power consumption without significantly increasing overall system complexity.
Solution Approach 2:
The patent employs a feedback mechanism where the screen controller continuously monitors the motion degree of displayed content and uses this information to adjust the frame rate. The system detects content characteristics, processes this information, and implements appropriate frame rate changes, creating a closed-loop control system that optimizes power consumption based on actual display requirements.
4Speed
If a high frame rate is always used, then the display quality for motion is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by using high frame rates only when necessary - specifically when moving content is detected on the screen. For static content, the system reduces the frame rate to lower power consumption levels. This selective application of high frame rates ensures that display quality is maintained for motion-intensive content while avoiding unnecessary power consumption during static displays.
Solution Approach 2:
The patent implements dynamic frame rate adjustment by introducing a screen controller that automatically changes the frame rate based on the detected motion degree of the displayed content. The system transitions from a static, fixed frame rate to a dynamic, adaptive frame rate that varies with content requirements, thereby reducing power consumption during static displays while maintaining high frame rates for motion-intensive content.
Data Source
AI summary
Apparatus and method for controlling a screen of an image display device on which an image signal transmitted from a PC can be displayed are provided. In the above apparatus and method, a TV mode and a PC mode are discerned by a selection of a user. In the case of a fast moving picture like in a TV, a fast display frame rate is set, and in the case of many slow moving pictures or still images, a normal display frame rate is set. In the PC mode having a fast moving picture, a motion degree is sensed such that the fast display frame rate is set, thereby preventing an increase in power consumption in advance. Also, a display frame rate most suitable to a display module can be set to thereby improve a life time problem of the display module, so that a user can view a natural screen without an afterimage phenomenon to enhance a user satisfaction.