Foldable Display Bending Protection Against Bracket Contact Damage

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Solution Overview

Problem

In foldable electronic devices, the bending portion of the display driver IC is prone to damage due to contact with the bracket when foreign matter is present, as the flexible front plate allows the bracket and bending portion to make contact, unlike rigid non-foldable devices where a gap is maintained.

Innovation Solution

A protective member is provided on the bending portion to prevent contact between the bracket and the bending portion, using an adhesive member to attach the bending portion and bracket, and potentially including a static electricity shielding member to cover the display driver integrated circuit and flexible printed circuit board.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the front plate is made flexible to enable folding, then the device can be folded along the folding line, but the bending portion may contact the bracket causing damage when pressure is applied

Engineering Contradiction:

Improvefolding capabilityVSAvoidbending portion durability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

A protective member is introduced as an intermediary component between the bending portion and the bracket. This protective member prevents direct contact between the bracket and the bending portion, thereby eliminating the damage caused by foreign matter on the bracket surface while maintaining the folding functionality of the flexible front plate.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective member is installed in advance on the bending portion to provide cushioning protection before any potential contact with the bracket occurs. This pre-installed protective layer absorbs and distributes pressure, preventing damage to the bending portion during folding operations or when external pressure is applied to the front plate.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Ease of operation

If pressure is applied to the flexible front plate, then the device responds to user input, but the bracket and bending portion make contact causing potential damage

Engineering Contradiction:

Improvepressure responseVSAvoidcontact damage from foreign matter

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The protective member serves as a mediator that allows pressure to be transmitted to the bending portion for user interaction while simultaneously preventing harmful contact with the bracket. The protective member's material properties enable it to withstand compression forces while maintaining a barrier between the bending portion and the bracket surface.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20260099173A1Foldable electronic device comprising protection member

Publication Date: 2026.04.09 SAMSUNG ELECTRONICS CO LTD

AI summary

An example electronic device includes a panel which forms at least a part of a display unit and which is folded along a folding line; a bending unit arranged to be adjacent to the long side of the panel; a film unit which is connected to the bending unit and which includes a display driving circuit; an FPCB which is connected to the film unit and which connects a processor and the display driving circuit; and a protection member arranged on the bending unit so as to cover at least a part of the bending unit, wherein the protection member is adhered onto one surface of the bending unit, at which the bending unit makes contact with a bracket.