Display Gate-Driver Scanning for High-Definition, High-Frame-Rate Displays

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Solution Overview

Problem

Existing display devices face challenges in simultaneously achieving higher definition and higher frame rate, as described in Japanese Patent Application Laid-open Publication No. 2010-271366.

Innovation Solution

The display device employs a configuration with a first and a second gate driver arranged along the second direction, scanning gate lines sequentially in a first area and simultaneously scanning adjacent gate lines in a second area, allowing for flexible scanning operations that reduce the scanning period and maintain high-definition display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If sequential scanning of gate lines is used, then high-definition display is maintained, but frame rate decreases

Engineering Contradiction:

Improvedisplay definitionVSAvoidframe rate

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The display area is divided into multiple scanning regions, and the gate driver is divided into multiple units (first gate driver and second gate driver). Each gate driver unit independently scans specific gate lines simultaneously, allowing parallel processing of scanning operations while maintaining overall display quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple gate drivers are combined to operate simultaneously on different gate lines. The first gate driver and second gate driver work in parallel to scan different regions, merging their scanning capabilities to achieve both high definition and high frame rate.

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If multiple gate lines are simultaneously scanned, then frame rate increases, but scanning period decreases

Engineering Contradiction:

Improveframe rateVSAvoidscanning period

Core Design Contradiction:

ProductivityVSDuration of action of moving object

Solution Approach 1:

The gate drivers operate in periodic cycles, with each gate driver unit sequentially activating different groups of gate lines. This periodic operation allows multiple gate lines to be scanned simultaneously while maintaining controlled scanning periods and preventing signal interference.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS12451095B2Display device

Publication Date: 2025.10.21 MAGNOLIA WHITE CORP

AI summary

According to an aspect, a display device includes: a substrate that has a display area; pixels that are provided in the display area and are arranged in a first direction and a second direction intersecting the first direction; gate lines that extend in the first direction and are arranged in the second direction; and a first gate driver and a second gate driver that are configured to supply gate drive signals to the gate lines. The first and second gate drivers are each provided along the second direction and are arranged in the first direction. The first and second gate drivers are configured to: sequentially scan the gate lines in a first area of the display area; and simultaneously scan more than one of the gate lines that are adjacent to one another in the second direction in a second area different from the first area of the display area.