Display Control Device Dynamic Mode Selection Power Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display control devices for portable terminals face challenges in managing high resolution data efficiently, leading to increased power consumption and image quality deterioration, especially when switching between different display modes and data types, which complicates power management and usability.
Innovation Solution
A display control device with a register that allows selection between first and second display modes and a scale-up mode, enabling mode data to be rewritten based on external directions, and a control part that manages these modes to minimize power consumption and prevent image distortion during mode transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If FHD resolution is maintained with scaling up, then display resolution is improved, but image quality deteriorates and power consumption increases
Solution Approach 1:
The patent implements dynamic selection between two display modes (first mode with external display timing signal and second mode with internal timing signal generation) based on the type of data being displayed. This allows the system to adaptively choose the appropriate mode rather than statically maintaining FHD resolution for all content types, thereby avoiding image quality deterioration while maintaining high resolution when necessary.
Solution Approach 2:
The patent changes the operational parameters of the display control device by switching between different display modes and timing signal configurations. By modifying parameters such as the source of display timing signals and the processing path for display data, the system can achieve FHD resolution for video content while using optimized paths for other content types, thus maintaining image quality across different scenarios.
2Measurement precision
If FHD resolution is maintained with scaling up, then display resolution is improved, but power consumption increases
Solution Approach 1:
The system dynamically switches between display modes based on data type and system conditions. For video data requiring FHD resolution, the first display mode processes data in real-time with external timing signals. For other data types, the second display mode uses internal timing signals and may employ scale-up processing, thereby reducing power consumption while maintaining acceptable display quality.
Solution Approach 2:
The patent modifies operational parameters by selecting different processing paths and timing signal sources based on the display content. This parameter change allows the system to consume less power for non-video content while maintaining FHD capability when needed, thus resolving the power consumption issue.
3Adaptability or versatility
If display mode switching is implemented, then adaptability to different data types is improved, but image distortion occurs at switching points
Solution Approach 1:
The patent prepares for mode switching by pre-configuring the display control device with dual mode capability and associated registers. The system can switch between first and second display modes without interruption or image distortion by having both modes ready and capable of immediate activation based on the data type and system conditions.
4Adaptability or versatility
If mode data is made rewritable, then flexibility in mode selection is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal register structure that can be configured for different display modes and functions. The same register can be rewritten to change between first and second display modes, and to control scale-up functionality, thereby providing multiple functions through a single configurable component rather than requiring separate dedicated components for each function.
Data Source
AI summary
The display control device has a register for holding mode data for giving: a direction about which of a first display mode for performing display control of display data supplied together with a display timing signal from outside, and a second display mode for performing display control of display data written in RAM without accepting supply of a display timing signal from outside to select; and a direction about whether or not to select a scale-up mode for scaling up the display data, so that the mode data can be rewritten from the outside. The display mode is controlled based on the setting values on the register. The control register can be rewritten according to the type of data to be displayed, the system working situation, user settings, etc. Therefore, the low power consumption allowable in terms of system, and a required display performance can be obtained timely and readily.