Gate Driver Sub-Blocks Between Pixel Circuits

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Solution Overview

Problem

The size of the non-display region in display devices increases with the size or resolution of the display, as the gate driver and data driver are typically located outside the display region, leading to a larger overall size of the device.

Innovation Solution

The gate driver is integrated into the display region by dividing it into stages with sub-blocks, allowing pixel circuits to be located between these sub-blocks, thereby minimizing the non-display region and reducing the overall size of the display device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the gate driver and data driver are located in a non-display region outside of the display region, then the drivers can be easily manufactured and maintained, but the size of the non-display region increases

Engineering Contradiction:
Improveease of manufactureVSAvoidsize of non-display region
Core Design Contradiction:
Ease of manufactureVSArea of stationary object

Solution Approach 1:

The gate driver is divided into multiple stages, and each stage is further divided into sub-blocks that can be distributed and integrated within the display region. This segmentation allows the gate driver functionality to be distributed across multiple locations within the display area, reducing the need for a large external non-display region while maintaining manufacturing ease through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gate driver is merged with the pixel circuits by locating at least one pixel circuit between two adjacent sub-blocks of the gate driver stages. This integration combines the driver functionality directly within the display region, eliminating the need for separate external driver regions and thereby reducing the overall non-display region size

Inventive Principle:
Principle #5Merging (Combining)

2Area of stationary object

If the gate driver is integrated into the display region by dividing it into stages with sub-blocks, then the size of the non-display region is minimized, but the device complexity increases

Engineering Contradiction:
Improvesize of non-display regionVSAvoiddevice complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The gate driver is divided into multiple stages with each stage containing sub-blocks, allowing the complex functionality to be distributed across multiple simpler modules within the display region. This segmentation reduces the need for a large external driver region while managing complexity through modular architecture

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different sub-blocks of the gate driver are positioned at different locations within the display region, with pixel circuits located between adjacent sub-blocks. This local distribution optimizes space utilization and reduces the non-display region size while managing complexity through spatial organization of functional blocks

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10403207B2Display device
Publication Date: 2019.09.03 SAMSUNG DISPLAY CO LTD
  • US10403207B2 patent drawing
  • US10403207B2 patent drawing
  • US10403207B2 patent drawing

AI summary

A display device includes a plurality of pixel circuits and a gate driver including a plurality of stages configured to output a gate signal to a plurality of gate lines, respectively, to provide the gate signal to the pixel circuits. Each of the stages is divided into a plurality of sub-blocks. At least one of the pixel circuits is located between two adjacent sub-blocks of the sub-blocks.