Optical Flow Luminance Control for Low-Power Image Display

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Solution Overview

Problem

The increasing power consumption of electronic devices due to advanced functionalities and the need to extend battery usage time without compromising image quality.

Innovation Solution

An electronic device that adjusts image luminance based on detected optical flow, using a low-power mode to reduce power consumption by lowering luminance in accordance with the magnitude and direction of detected movement in the input image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If luminance is lowered to reduce power consumption, then energy efficiency improves, but image quality deteriorates

Engineering Contradiction:
Improvepower consumptionVSAvoidimage quality
Core Design Contradiction:
Use of energy by moving objectVSManufacturing precision

Solution Approach 1:

The system dynamically adjusts luminance based on detected optical flow magnitude and direction, transitioning between normal and low-power modes. This dynamic adaptation allows the display to optimize power consumption while maintaining image quality through real-time parameter adjustment rather than static luminance settings

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes display parameters (luminance, contrast, frame rate) based on optical flow detection results. By modifying these parameters according to scene characteristics, the system achieves power savings while preserving perceptual image quality through intelligent parameter optimization

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If advanced functionalities are added to electronic devices, then device capabilities improve, but power consumption increases

Engineering Contradiction:
Improvedevice capabilitiesVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system selectively discards full-power display operations when optical flow analysis indicates low movement magnitude or specific movement patterns. By recovering power during these periods through reduced luminance while maintaining functional capabilities, the system manages energy consumption without sacrificing device versatility

Inventive Principle:
Principle #34Discarding and recovering

Solution Approach 2:

The system implements periodic optical flow detection and luminance adjustment cycles, switching between normal and low-power modes based on detected movement patterns. This periodic adaptation allows advanced functionalities to operate efficiently by alternating between high-performance and energy-saving states

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20250227210A1Electronic device for displaying image and operating method of electronic device
Publication Date: 2025.07.10 SAMSUNG ELECTRONICS CO LTD
  • US20250227210A1 patent drawing
  • US20250227210A1 patent drawing
  • US20250227210A1 patent drawing

AI summary

The present disclosure includes an electronic device for displaying an image and an operating method of the electronic device. The electronic device includes: an image display unit comprising circuitry configured to display an image, a memory in which at least one instruction is stored, and at least one processor, comprising processing circuitry, individually and/or collectively, configured to execute the at least one instruction stored in the memory, and to: obtain an input image through an input/output interface, detect an optical flow indicating movement of an object included in the input image, based on a power control signal being obtained by executing a battery check module stored in the memory, and operate in a low-power mode in which a luminance of an image generated based on the input image is adjusted to be lowered, based on a magnitude and a direction of the detected optical flow.