Touch Display Panel Circuit Board Overlap Structural Integrity

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Solution Overview

Problem

Conventional on cell touch display panels face challenges in design efficiency and structural integrity, particularly in minimizing deformation during touch control and supporting the touch panel without the need for additional strengthening processes.

Innovation Solution

The design incorporates a touch display panel with a display panel comprising oppositely disposed substrates, a touch panel positioned over the display panel, and a circuit connection board physically and electrically connected to the touch panel, where at least a portion of the circuit connection board overlaps the first substrate in a direction perpendicular to the display panel, optimizing the overlap and gap configurations to reduce deformation and eliminate the need for additional strengthening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the circuit connection board is disposed on the touch panel in a conventional on cell touch display panel, then the electrical connection is achieved, but the structural integrity is insufficient and additional strengthening processes are required

Engineering Contradiction:
Improvestructural integrityVSAvoidadditional strengthening processes
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The circuit connection board is integrated with the touch panel such that it serves dual functions: electrical connection and structural support. The board is physically connected to both the touch panel and display panel, merging the support function into an existing component rather than adding separate strengthening structures.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The circuit connection board is designed to perform multiple functions simultaneously: electrical connection between touch panel and display panel, mechanical support for the touch panel, and structural integration within the display assembly. This multi-functionality eliminates the need for additional strengthening processes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Strength

If the circuit connection board overlaps the first substrate perpendicular to the display panel, then the structural integrity is enhanced, but the total dimensions increase

Engineering Contradiction:
Improvestructural integrityVSAvoidtotal dimensions
Core Design Contradiction:
StrengthVSLength of stationary object

Solution Approach 1:

The circuit connection board extends in the perpendicular dimension (thickness direction) by overlapping the first substrate, rather than extending in the planar dimensions. This allows structural reinforcement without significantly increasing the overall length or width of the display panel.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Stability of the object's composition

If additional strengthening processes are applied to support the touch panel, then the structural stability is improved, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improvestructural stabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The circuit connection board is designed to provide structural support as an inherent function of its configuration, rather than requiring separate strengthening processes. The board's physical connection between touch panel and display panel creates a self-supporting structure that maintains stability without additional manufacturing steps.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9395571B2Touch display panel and touch display apparatus
Publication Date: 2016.07.19 IDUNN IP HOLDINGS LLC
  • US9395571B2 patent drawing
  • US9395571B2 patent drawing
  • US9395571B2 patent drawing

AI summary

A touch display panel comprises a display panel, a touch panel and a circuit connection board. The display panel includes a first substrate and a second substrate which are disposed oppositely. The touch panel is disposed over the display panel. The circuit connection board is disposed on the touch panel and physically and electrically connected to the touch panel. At least a portion of the circuit connection board overlaps the first substrate in a direction perpendicular to the display panel. A touch display apparatus is also disclosed.