Display Control Apparatus Suppressing Screen Flickering During Content Switching

Solution Overview

Problem

Existing technologies face challenges in faithfully displaying High Dynamic Range (HDR) content generated by digital cameras, as they often require frequent reconnection of the camera and display apparatus to match changing content characteristics, leading to screen flickering and reduced user convenience.

Innovation Solution

A display control apparatus and method that selectively control setting information for display characteristics, maintaining current settings when content is continuously changed and adjusting them only when content change stops, to prevent screen flickering and ensure faithful color and brightness reproduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the connection settings of the display apparatus are changed to match the color gamut and gamma characteristic of the reproduction target content, then the color and brightness reproduction is improved, but the screen flickering occurs and the user convenience is degraded

Engineering Contradiction:

Improvecolor and brightness reproductionVSAvoiduser convenience

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The display control apparatus performs preliminary action by buffering the connection settings before changing them. When content with different display characteristics is detected, the apparatus waits for a predetermined period to ensure continuous content change, then executes the setting change only after the continuous change condition is no longer met. This preliminary buffering prevents premature setting changes that would cause flickering.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the connection settings based on the detected content characteristics while introducing a delay mechanism. The control unit changes the connection settings from first connection settings to second connection settings only after confirming that continuous content change has stopped, creating a dynamic response that balances adaptation speed with stability.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the connection settings are changed frequently to match different content characteristics, then the adaptability to content is improved, but the screen flickering frequency increases

Engineering Contradiction:

Improveadaptability to contentVSAvoidscreen flickering

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The display control apparatus performs preliminary action by buffering the connection settings before changing them. When content with different display characteristics is detected, the apparatus waits for a predetermined period to ensure continuous content change, then executes the setting change only after the continuous change condition is no longer met. This preliminary buffering prevents premature setting changes that would cause flickering.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements periodic action by introducing a predetermined time period between setting changes. The control unit does not immediately change connection settings when content characteristics change, but rather waits for the content change to persist for a predetermined duration, creating a periodic rhythm that filters out transient changes and reduces flickering.

Inventive Principle:

Principle #19Periodic action

3Object-affected harmful factors

If the display apparatus waits to change connection settings until continuous content change stops, then the screen flickering is suppressed, but the response time to content changes is delayed

Engineering Contradiction:

Improvescreen flickeringVSAvoidresponse time

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The display control apparatus performs preliminary action by buffering the connection settings before changing them. When content with different display characteristics is detected, the apparatus waits for a predetermined period to ensure continuous content change, then executes the setting change only after the continuous change condition is no longer met. This preliminary buffering prevents premature setting changes that would cause flickering.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the connection settings based on the detected content characteristics while introducing a delay mechanism. The control unit changes the connection settings from first connection settings to second connection settings only after confirming that continuous content change has stopped, creating a dynamic response that balances adaptation speed with stability.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250054463A1Display control apparatus and control method

Publication Date: 2025.02.13 CANON KK

AI summary

A display control apparatus comprises a selection unit that selects reproduction target content from a plurality of content, an output unit that outputs, to a display unit, the reproduction target content selected by the selection unit, and a control unit that controls setting information concerning a display characteristic set in the output unit and the display unit. The control unit controls not to change the setting information based on the reproduction target content in a case where the selection unit continuously changes the reproduction target content, and to change the setting information based on the reproduction target content in a case where the selection unit does not continuously change the reproduction target content.