Multi-Rate Display Scanning for Regional Content Synchronization

Solution Overview

Problem

Existing electronic devices with larger displays face inefficiencies in resource utilization and heat management due to the generation of a vertical synchronization signal at the highest scanning rate across multiple regions, leading to unnecessary resource waste and operational burdens.

Innovation Solution

The electronic device generates a vertical synchronization signal only for the area where content update is required, based on scanning rates configured for each region, allowing the processor to synthesize and transmit partial content to the display panel, reducing data transmission and operational burden.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vertical synchronization signal is generated at the highest scanning rate across all regions, then the display can maintain proper synchronization, but resources are wasted unnecessarily and heat generation increases

Engineering Contradiction:

Improvevertical synchronizationVSAvoidresource waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The display is divided into multiple regions with different scanning rates. Each region generates its own vertical synchronization signal based on its specific scanning rate rather than using a unified high scanning rate across the entire display. This segmentation allows low scanning rate regions to avoid unnecessary resource consumption while high scanning rate regions maintain proper synchronization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the display are assigned different scanning rates according to their specific requirements. The vertical synchronization signal generation is localized to each region, allowing each region to operate at its optimal scanning rate without forcing the entire display to operate at the highest possible rate, thereby reducing overall energy consumption.

Inventive Principle:

Principle #3Local quality

2Reliability

If a vertical synchronization signal is generated at the highest scanning rate across all regions, then synchronization is maintained, but operational burden increases

Engineering Contradiction:

Improvevertical synchronizationVSAvoidoperational burden

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The display is divided into multiple regions with different scanning rates. Each region generates its own vertical synchronization signal based on its specific scanning rate rather than using a unified high scanning rate across the entire display. This segmentation allows low scanning rate regions to avoid unnecessary resource consumption while high scanning rate regions maintain proper synchronization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the scanning rate and vertical synchronization signal generation on a per-region basis. Instead of a static unified scanning rate, the system adapts the scanning characteristics to match the specific needs of each region, reducing operational burden while maintaining necessary synchronization.

Inventive Principle:

Principle #15Dynamics

3Reliability

If content rendering operation is performed for all regions at the highest scanning rate, then synchronization is maintained, but heat problem occurs

Engineering Contradiction:

Improvevertical synchronizationVSAvoidheat generation

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The display is divided into multiple regions with different scanning rates. Each region generates its own vertical synchronization signal based on its specific scanning rate rather than using a unified high scanning rate across the entire display. This segmentation allows low scanning rate regions to avoid unnecessary resource consumption while high scanning rate regions maintain proper synchronization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of performing content rendering operations at the highest scanning rate across the entire display, the system applies partial action by only rendering content at the necessary scanning rate for each specific region. This reduces overall computational load and heat generation while maintaining proper synchronization in regions that require it.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12361893B2Electronic device for displaying content on basis of plurality of scanning rates and operating method therefor

Publication Date: 2025.07.15 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device is provided. The electronic device includes a display driver integrated circuit (IC), a display and a processor configured to receive an interrupt signal from the display driver IC based on a plurality of scanning rates set to a plurality of regions of the display, obtain a plurality of vertical synchronization signals associated with a plurality of regions, based on the received interrupt signal, obtain pieces of content to be displayed in a plurality of regions based on the plurality of vertical synchronization signals, synthesize content based on the coordinate information about the pieces of content, and transmit, to the display driver IC, information about the synthesized pieces of content and information about the remaining pieces of the synthesized content so the synthesized pieces of content and the remaining pieces of the synthesized content are displayed in the plurality of regions.