Display Panel Gray Scale Compensation via Regional Segmentation

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Solution Overview

Problem

Existing display panel compensation methods often result in color deviation in certain areas, leading to a poor compensation effect.

Innovation Solution

A gray scale compensation method and apparatus that divides the display panel into distinct regions, each with its own compensation algorithm, allowing for independent compensation parameters and reducing color deviation by transitioning through a third compensation algorithm in the transition region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single compensation algorithm is used for the entire display panel, then the compensation process is simple, but color deviation occurs in certain areas resulting in poor compensation effect

Engineering Contradiction:
Improvecompensation process simplicityVSAvoidcompensation accuracy
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The display panel is divided into multiple display regions (first display region, second display region, and transition display region), and different compensation algorithms are applied to each region. This segmentation allows the system to achieve high compensation accuracy in each specific region while maintaining overall system manageability, resolving the contradiction between process simplicity and compensation precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different compensation algorithms are configured for different display regions based on their specific characteristics. The first compensation algorithm is used for the first display region, the second compensation algorithm for the second display region, and the third compensation algorithm for the transition display region. This local differentiation ensures optimal compensation accuracy for each region while maintaining overall system simplicity through structured regional management.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If different compensation algorithms are used for different display regions, then color deviation is avoided and compensation accuracy is improved, but the compensation system becomes more complex

Engineering Contradiction:
Improvecompensation accuracyVSAvoidcompensation system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display panel is segmented into distinct regions (first display region, second display region, and transition display region), each with its own compensation algorithm. This segmentation structure organizes the complexity into manageable parts, allowing high compensation accuracy through regional differentiation while maintaining system complexity at a controllable level through clear regional boundaries and structured algorithm assignment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A transition display region is introduced as an intermediary between the first and second display regions. This transition region uses a third compensation algorithm that bridges the differences between the two main regions, ensuring smooth color transitions and eliminating color deviation at region boundaries. The intermediary region acts as a buffer that manages the complexity of transitioning between different compensation algorithms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If a transition region with a third compensation algorithm is added, then color deviation at region boundaries is eliminated, but the compensation system becomes even more complex

Engineering Contradiction:
Improvecolor uniformityVSAvoidcompensation algorithm complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

A transition display region is introduced as an intermediary between the first and second display regions. This transition region uses a third compensation algorithm that bridges the differences between the two main regions, ensuring smooth color transitions and eliminating color deviation at region boundaries. The intermediary region acts as a buffer that manages the complexity of transitioning between different compensation algorithms, achieving superior color uniformity while containing complexity through a structured three-region approach.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The transition display region is assigned a specialized third compensation algorithm that is locally optimized for boundary conditions. This local differentiation at the boundary region ensures smooth color transitions and eliminates color deviation specifically where regions meet, while the rest of the display panel maintains simpler compensation schemes, balancing color uniformity with overall system complexity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12266320B2Gray scale compensation method and apparatus for display panel
Publication Date: 2025.04.01 KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER CO LTD
  • US12266320B2 patent drawing
  • US12266320B2 patent drawing
  • US12266320B2 patent drawing

AI summary

A gray scale compensation method for a display panel includes: dividing a display region of the display panel into a first display region, a second display region and a transition display region arranged between the first and second display regions; configuring a first compensation algorithm for the first display region to obtain a first compensation gray scale of the first display region, configuring, for the second display region, a second compensation algorithm different from the first compensation algorithm to obtain a second compensation gray scale of the second display region, and configuring, for the transition display region, a third compensation algorithm different from the first and second compensation algorithms to obtain a third compensation gray scale of the transition display region; and configuring the display panel to display an image according to the first compensation gray scale, the second compensation gray scale and the third compensation gray scale.