Flexible-Sheet Pivot Touch Panel Assembly for Stable Hand Feel

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Solution Overview

Problem

Existing touch panels in laptop computers face issues with poor size stability and require tools for assembly, leading to poor hand feel and increased production costs due to the use of stopping and elastic structures.

Innovation Solution

A touch panel assembly design featuring a flexible sheet component with a pivot axis allowing a lever component to swing and contact a trigger element, eliminating the need for reciprocal structures and reducing weight and thickness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If stopping structure and elastic structure are used to support the touch panel, then the touch panel can be supported and limited, but the size stability deteriorates and hand feel worsens

Engineering Contradiction:
Improvesize stabilityVSAvoidhand feel
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent removes the stopping structure and elastic structure from the touch panel assembly. The circuit board is directly mounted to the housing using screw holes, eliminating the intermediate elastic support structure that caused size instability and poor hand feel. This extraction of unnecessary components resolves the contradiction by providing both stability and good hand feel.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If elastic structure is screwed on the housing, then the circuit board is supported, but tools are required for assembly and disassembly

Engineering Contradiction:
Improvesupport stabilityVSAvoidassembly convenience
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The circuit board is designed with built-in screw holes that allow it to be directly mounted to the housing without requiring separate elastic structures or tools for assembly. The self-contained mounting design enables easy assembly and disassembly by simply removing the screws, eliminating the need for additional tools while maintaining support stability.

Inventive Principle:
Principle #25Self-service

3Reliability

If stopping structure and elastic structure are used, then the touch panel functions are completed, but the weight and production cost increase

Engineering Contradiction:
Improvefunctional completenessVSAvoidtouch panel weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent eliminates the stopping structure and elastic structure from the touch panel assembly, retaining only the essential circuit board with screw holes for mounting. This extraction of non-essential components reduces the overall weight and production cost while maintaining the functional completeness of the touch panel through direct mounting to the housing.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20250306649A1Touch panel assembly
Publication Date: 2025.10.02 ACER INC
  • US20250306649A1 patent drawing
  • US20250306649A1 patent drawing
  • US20250306649A1 patent drawing

AI summary

A touch panel assembly is provided. The touch panel assembly comprises a base and a touch panel module. The touch panel module is disposed on the base, and includes a flexible sheet component, a circuit board, and a lever component. The flexible sheet component has opposing top and bottom surfaces. The circuit board is adhered to a middle adhesive portion of the top surface and has a trigger element. The lever component is adhered to a lower adhesive portion of the bottom surface. A lower non-adhesive portion of the top surface is at an opposite side to a position where the lever component is adhered to the lower adhesive portion. A pivot axis is formed between the lower non-adhesive portion and the middle adhesive portion. The flexible sheet component allows the lever component to swing along the pivot axis so as to contact the trigger element.