Flexible Display Touch Sensitivity During Screen Size Adjustment

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Solution Overview

Problem

In flexible-type electronic devices, high touch sensitivity during screen size adjustment can lead to erroneous operations, and disabling the touch panel during sliding operations results in unrecognized user inputs.

Innovation Solution

The device adjusts touch sensitivity in response to changes in screen size, applying lower sensitivity during screen size adjustments and restoring normal sensitivity when the change is complete.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a rigid housing structure is used to protect internal components, then mechanical strength and protection are improved, but flexibility and adaptability to curved surfaces deteriorate

Engineering Contradiction:
Improvemechanical protectionVSAvoidflexibility
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The housing is divided into a front housing and a rear housing that can rotate relative to each other about a hinge axis. This segmentation allows the housing to adapt to curved surfaces while maintaining mechanical protection, as the two segments can adjust their relative positions independently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hinge mechanism enables dynamic adjustment of the housing configuration. The front and rear housings can rotate relative to each other, allowing the device to transition from a rigid flat configuration to a flexible curved configuration, thus resolving the contradiction between strength and flexibility.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the device maintains a fixed flat configuration, then structural stability is improved, but adaptability to curved surfaces and flexibility deteriorate

Engineering Contradiction:
Improvestructural stabilityVSAvoidflexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The hinge mechanism allows the housing to dynamically adjust between stable flat and flexible curved configurations. When in the flat configuration, structural stability is maintained; when adaptation to curved surfaces is needed, the housings can rotate to achieve the required curvature while maintaining overall structural integrity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The display device can be inserted into a recess of the housing when in the flat configuration, creating a nested arrangement that maintains stability. When flexibility is needed, the display can be pulled out and the housings rotated to curved configurations.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of moving object

If the display device is always inserted into the recess, then compactness and stability are improved, but accessibility and ease of operation deteriorate

Engineering Contradiction:
ImprovecompactnessVSAvoidaccessibility
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The display device can dynamically transition between inserted and extended states. When compactness is prioritized, the display is inserted into the recess. When ease of operation is prioritized, the display can be pulled out for better accessibility, and the hinge mechanism allows smooth transition between these states.

Inventive Principle:
Principle #15Dynamics

4Ease of manufacture

If the housing is made as a single rigid piece, then manufacturing simplicity is improved, but adaptability to different configurations and flexibility deteriorate

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidconfiguration flexibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The housing is segmented into front and rear portions that can be manufactured separately using standard manufacturing processes, then assembled with a hinge mechanism. This segmentation maintains manufacturing simplicity while enabling configuration flexibility, as each segment can be optimized independently and the hinge allows relative movement.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4235373B1Flexible-type electronic device and operating method therefor
Publication Date: 2026.05.06 SAMSUNG ELECTRONICS CO LTD
  • EP4235373B1 patent drawingFigure 1
  • EP4235373B1 patent drawingFigure 2
  • EP4235373B1 patent drawingFigure 3

AI summary

Provided are a device for adjusting touch sensitivity in response to changing of a screen size in a flexible-type electronic device, and an operating method therefor. An electronic device according to various embodiments of the present disclosure can adjust the touch sensitivity of a touch panel by means of a second setting value that has dynamically reduced a first setting value corresponding to an initial value, during a driving section in which changing of a screen size of a flexible display is continued; and initialize the second setting value to be the first setting value if changing of the screen size of the flexible display is terminated.