Display Apparatus Adaptive Sleep Mode Control
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Solution Overview
Problem
Existing display systems face increased power consumption due to the requirement for a combined standby period before transitioning to a sleep mode, as they uniformly rely on the sum of the standby periods of both the image supply apparatus and the display apparatus.
Innovation Solution
A method and apparatus where the display apparatus transitions to a second sleep mode based on continuous non-supply of the image signal for a shorter second period, which is set shorter than a reference period in accordance with information received from the image supply apparatus, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the display apparatus uses a uniform standby period equal to the sum of both apparatuses' standby periods, then the system ensures proper sleep mode transition, but the power consumption increases during idle periods
Solution Approach 1:
The display apparatus dynamically adjusts its standby period based on the first standby period information received from the image supply apparatus. When the image supply apparatus has a short standby period, the display apparatus sets a correspondingly short second standby period, making the system adaptive rather than static. This dynamic adjustment resolves the contradiction by optimizing power consumption according to actual operational conditions.
Solution Approach 2:
The patent changes the parameter of standby period from a fixed uniform value to a variable value based on information from the image supply apparatus. By receiving first standby period information and setting the second standby period accordingly, the system modifies its operational parameters to minimize power consumption while ensuring timely sleep mode transitions.
2Reliability
If the display apparatus sets a long standby period to ensure proper sleep mode transition, then the system maintains reliability, but the power consumption increases
Solution Approach 1:
The display apparatus receives feedback in the form of first standby period information from the image supply apparatus via the interface. This feedback mechanism allows the display apparatus to adjust its second standby period setting accordingly, ensuring reliable sleep mode transitions while optimizing power consumption based on actual system conditions rather than using a conservative fixed value.
Solution Approach 2:
The system transitions from a static, fixed standby period approach to a dynamic, adaptive approach where the standby period is adjusted based on real-time information from the image supply apparatus. This dynamic adjustment maintains reliability by ensuring the standby period is sufficient while minimizing unnecessary power consumption during idle periods.
Data Source
AI summary
A method for controlling a display apparatus that displays an image based on an image signal supplied from an image supply apparatus that transitions to a first sleep mode in accordance with a situation in which a no-operation state lasts for a first period, the method including storing second information representing a second period, causing the display apparatus to transition to a second sleep mode in accordance with a situation in which the image signal is not supplied continuously for the second period, receiving first information representing the first period from the image supply apparatus, and setting the second information in such a way that the second period is shorter than a reference period in accordance with the first information.