Low-Power Display Updates Using Preloaded Candidate Images

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Solution Overview

Problem

Electronic devices face challenges in reducing power consumption while maintaining display functionality, particularly in states requiring lower power usage such as always-on displays.

Innovation Solution

The electronic device employs a method where candidate images are stored in memory to maintain an inactive state of primary processing circuitry, allowing secondary processing circuitry to manage display changes based on sensor data, thereby reducing power consumption during lower power consumption states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the display operates in a state for lower power consumption, then power consumption is reduced, but the processing circuitry cannot actively manage display changes in real-time

Engineering Contradiction:

Improvepower consumptionVSAvoiddisplay update capability

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The processing circuitry is divided into multiple independent circuits (first processing circuitry, second processing circuitry, third processing circuitry). The first circuit stores candidate images in memory while inactive, the second circuit manages display changes based on sensor data, and the third circuit handles other processing tasks. This segmentation allows the display to operate in low-power mode while distributed circuits handle specific functions independently.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Candidate images are stored in advance in memory by the first processing circuitry before the display enters low-power state. This preliminary action enables the display to update content without requiring the main processing circuitry to be fully active, thus maintaining low-power operation while preserving display update capability.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by moving object

If candidate images are stored in memory to maintain inactive state, then processing circuitry remains inactive and power consumption decreases, but memory access is required for display changes

Engineering Contradiction:

Improvepower consumptionVSAvoidmemory management complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

Memory acts as an intermediary between the inactive processing circuitry and the display. Candidate images are stored in memory during inactive state, and when display updates are needed, the second processing circuitry reads from memory without requiring the main processing circuitry to be fully active. This intermediary approach simplifies the overall system architecture by enabling asynchronous operations.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Use of energy by moving object

If secondary processing circuitry manages display changes based on sensor data, then power consumption is reduced, but additional processing circuits are required

Engineering Contradiction:

Improvepower consumptionVSAvoidprocessing circuit structure

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The processing system is segmented into specialized circuits: first processing circuitry for storing candidate images, second processing circuitry for managing display changes based on sensor data, and third processing circuitry for other functions. Each circuit operates independently and can be activated only when needed, reducing overall power consumption while distributing the processing burden.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The second processing circuitry serves multiple functions: it manages display changes, processes sensor data, and coordinates with both the first and third processing circuitries. This multi-functional design reduces the need for separate dedicated circuits for each function, thereby limiting the increase in device complexity while achieving power savings.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260079561A1Electronic device comprising display operating in state for lower power consumption, and method therefor

Publication Date: 2026.03.19 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device is provided. The electronic device includes a display, memory, a sensor, and one or more processors including a first processing circuit, a second processing circuit and at least one third processing circuit, wherein the first processing circuitry is configured to store, in the memory, candidate images for at least partially changing of a screen to be displayed on the display operating in a state for lower power consumption, wherein storing of the candidate images is performed for maintaining an inactive state of the first processing circuitry while the display operates in the state for lower power consumption, and after the candidate images are stored, switch a state of the first processing circuitry to the inactive state, and wherein the at least one third processing circuitry is configured to, while the inactive state of the first processing circuitry is maintained, control the second processing circuitry to obtain a candidate image corresponding to sensing data obtained via the sensor from among the candidate images, from the memory, and control the second processing circuitry to transmit data associated with the candidate image to the display for at least partially changing the screen being displayed on the display operating in the state for lower power consumption based on the candidate image.