Curved Display Segmental Support for Sliding Reliability

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Solution Overview

Problem

Existing flexible display devices face challenges in maintaining reliability during sliding operations, as they tend to sag or bend, leading to potential deformation and reduced performance.

Innovation Solution

The proposed display device incorporates a design with a first and second area, where the second area has a constant curvature, featuring a plate structure with segmental members and guide members that are movable under the segmental members, along with a support plate to prevent sagging or bending, and a pair of rails to guide the sliding movement, ensuring smooth operation and maintaining the display's integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible display device is made bendable for sliding operations, then adaptability and portability are improved, but reliability deteriorates due to sagging and bending during operation

Engineering Contradiction:
Improvesliding operation capabilityVSAvoiddisplay integrity during sliding
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The support structure is divided into multiple segmental members that can independently move and adjust. These segmented components work together to provide flexible support while preventing sagging, allowing the display to maintain integrity during sliding operations without requiring a completely rigid structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Guide members are introduced as intermediary elements between the segmental members and the display module. These guide members constrain the movement of segmental members to predetermined paths, ensuring that the display maintains proper positioning and orientation during sliding while allowing necessary flexibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If segmental members are used to support the curved display area, then ease of operation is improved, but device complexity increases due to additional components

Engineering Contradiction:
Improvesliding movement smoothnessVSAvoidnumber of support components
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Multiple functions are merged into the segmental members and guide members. The segmental members simultaneously provide structural support, enable sliding movement, and maintain display positioning. The guide members combine guidance, constraint, and support functions, reducing the need for separate components for each function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support structure transitions from a static rigid design to a dynamic system where segmental members can move and adjust during sliding operations. This dynamic configuration allows the structure to adapt to different operational states, providing support when needed and allowing movement when required, thereby improving ease of operation without requiring excessive components.

Inventive Principle:
Principle #15Dynamics

3Reliability

If guide members are made movable under segmental members, then reliability is improved by preventing lifting, but manufacturing precision requirements increase

Engineering Contradiction:
Improveprevention of segmental member liftingVSAvoidalignment accuracy of guide members
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The guide members are designed to move with the segmental members, maintaining relative positioning through their coupled motion. This equipotential movement ensures that alignment is maintained during sliding operations, reducing the stringency of initial manufacturing precision requirements while still achieving reliable lifting prevention.

Inventive Principle:
Principle #12Equipotentiality

Solution Approach 2:

The design allows for parameter changes in the guide members' position and orientation during operation. By enabling the guide members to adjust their parameters dynamically as they move with the segmental members, the system compensates for manufacturing tolerances and achieves reliable lifting prevention without requiring extremely tight manufacturing precision.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240032220A1Display device
Publication Date: 2024.01.25 SAMSUNG DISPLAY CO LTD
  • US20240032220A1 patent drawing
  • US20240032220A1 patent drawing
  • US20240032220A1 patent drawing

AI summary

A display device includes: a display module including a first area and a second area positioned adjacent to the first area, the second area including a portion curved to have a constant curvature, a plate including: a first plate disposed under the display module and overlapping the first area and a second plate disposed under the display module and overlapping the second area and extending from the first plate, segmental members disposed under the plate and overlapping the second area, and guide members overlapping the segmental members in the second area and movable under the segmental members.