Stretchable Display Gate Driving With Compensation Pixels

Solution Overview

Problem

Conventional display panels suffer from deteriorating display effects when deformed, such as changes in resolution and brightness due to pixel distance alterations during stretching or contraction.

Innovation Solution

A gate driving method and circuit that includes original and compensation pixels, where the distance between adjacent pixels is monitored to determine the panel's state, and compensation pixels are controlled to emit light when the panel is stretched to maintain or improve brightness and resolution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the display panel is stretched to increase display area, then the display area increases, but the pixel distance increases causing resolution and brightness deterioration

Engineering Contradiction:

Improvedisplay areaVSAvoidpixel distance

Core Design Contradiction:

Area of stationary objectVSManufacturing precision

Solution Approach 1:

The pixel array is segmented into original pixels and compensation pixels. The compensation pixels are specifically designed to be activated only when the display panel is stretched, providing additional display elements to compensate for the increased pixel distance and maintain resolution and brightness quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The display panel incorporates a state detection mechanism that dynamically determines whether the panel is stretched or not. Based on this dynamic state, the gate driving circuit adjusts the activation of compensation pixels accordingly, enabling the system to adapt to different display areas and maintain optimal display quality in both stretched and non-stretched states.

Inventive Principle:

Principle #15Dynamics

2Manufacturing precision

If compensation pixels are always activated to maintain display quality, then resolution and brightness are maintained, but power consumption increases

Engineering Contradiction:

Improvedisplay qualityVSAvoidpower consumption

Core Design Contradiction:

Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The compensation pixels are activated periodically or conditionally based on the detected state of the display panel. Rather than continuous activation, the compensation pixels are selectively turned on only when stretching is detected, and turned off when the panel returns to its original state, thereby reducing unnecessary power consumption while maintaining display quality when needed.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The display panel incorporates a self-detection mechanism that automatically determines its own state (stretched or not) and triggers the appropriate pixel activation pattern without external intervention. This self-service approach ensures that compensation pixels are activated only when necessary, optimizing the balance between display quality and power consumption.

Inventive Principle:

Principle #25Self-service

3Device complexity

If only original pixels are used during stretching, then device complexity is reduced, but resolution and brightness deteriorate

Engineering Contradiction:

Improvepixel structureVSAvoidresolution

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The pixel array is segmented into original pixels and compensation pixels. The compensation pixels are specifically designed to be activated only when the display panel is stretched, providing additional display elements to compensate for the increased pixel distance and maintain resolution and brightness quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The display panel incorporates a state detection mechanism that dynamically determines whether the panel is stretched or not. Based on this dynamic state, the gate driving circuit adjusts the activation of compensation pixels accordingly, enabling the system to adapt to different display areas and maintain optimal display quality in both stretched and non-stretched states.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12494144B2Gate driving method and circuit, and strechable display panel having same gate driving unit controlling both original pixels and compensation pixels

Publication Date: 2025.12.09 HKC CORP LTD

AI summary

Disclosed are a gate driving method and circuit, and a display panel. When the display panel is deformed, a target distance between two adjacent original pixels at intervals is determined; a current state of the display panel is determined according to the target distance, and when the display panel is currently in a stretched state, the compensation pixel is controlled to compensate for light emitting display to improve brightness and/or resolution of the display panel; when the display panel is in an unstretched state, the compensation pixel is controlled not to emit light to avoid display abnormalities.