Frame Replay Selectable Taps Display Compensation

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Solution Overview

Problem

Existing electronic display technologies face inefficiencies in power conservation and image processing when compensation factors such as panel-specific characteristics, temperature, brightness, and polarity change, leading to image artifacts and increased power consumption during frame replay.

Innovation Solution

Implementing multiple selectable tap points at different stages of the image processing circuitry allows for partial frame replay even when some compensation factors change, reducing the need for reprocessing and conserving power by power-gating or reducing the clock frequency of unused compensation blocks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If frame replay is used to conserve power by reusing processed image frames, then power consumption is reduced, but image artifacts occur when compensation factors change

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

Solution Approach 1:

The image processing circuitry is divided into multiple compensation blocks, each handling specific compensation factors. Tap points are placed at different stages of this segmented pipeline, allowing selective frame replay for blocks whose compensation factors remain unchanged while reprocessing only those blocks whose factors have changed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically selects which tap point to use based on which compensation factors have changed. This allows the frame replay functionality to adapt its behavior - using full frame replay when all factors are stable, partial replay when some factors change, ensuring image quality is maintained while maximizing power savings.

Inventive Principle:
Principle #15Dynamics

2Reliability

If all compensation blocks are reprocessed when a compensation factor changes, then image quality is maintained, but power consumption increases

Engineering Contradiction:
Improveimage qualityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

By segmenting the compensation blocks and placing tap points between them, the system can identify exactly which segment needs reprocessing. This avoids the unnecessary reprocessing of stable segments, reducing power consumption while maintaining image quality for the affected segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies different processing strategies to different segments based on their specific needs. Blocks whose compensation factors have changed receive full reprocessing, while blocks with stable factors reuse previously processed data, optimizing the balance between image quality and power consumption locally for each block.

Inventive Principle:
Principle #3Local quality

3Productivity

If frame replay is implemented, then processing efficiency is improved, but device complexity increases due to multiple tap points

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidcircuitry complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The multiple tap points serve multiple functions: they enable frame replay, provide intermediate processing stages, and allow selective reprocessing. This multi-functionality justifies the added complexity by providing versatile control over the image processing pipeline.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

By placing tap points at intermediate stages, the system prepares partially processed data that can be quickly reused or completed with minimal additional processing. This preliminary action at intermediate stages enables faster recovery from stable states compared to full reprocessing.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11984091B2Frame replay with selectable taps
Publication Date: 2024.05.14 APPLE INC
  • US11984091B2 patent drawing
  • US11984091B2 patent drawing
  • US11984091B2 patent drawing

AI summary

Systems, methods, and devices are provided to selectively perform a frame replay at various stages of an image processing pipeline for an electronic display. Image processing circuitry may include first compensation circuitry that compensates for a first compensation factor relating to a first physical parameter of an electronic display and second compensation circuitry that compensates for a second compensation factor relating to a second physical parameter of the electronic display. A first tap point that enables the image frame to be stored and reused may be located between the first compensation circuitry and the second compensation circuitry, while a second tap point may be located after the second compensation circuitry.