Touch Display Panel Non-Display Region Integration

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Solution Overview

Problem

Conventional touch display panels suffer from inefficient space utilization due to the layout of peripheral circuits, leading to wasted space and limited functionality.

Innovation Solution

The touch display panel incorporates a touch device layer extending into the non-display region, made of the same material as the touch device layer in the display region, allowing for the configuration of touch keys and expanding the panel's functional capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the touch device layer is extended into the non-display region, then the space utilization and functionality are improved, but the circuit layout complexity increases

Engineering Contradiction:

ImprovefunctionalityVSAvoidcircuit layout complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The touch device layer is extended from the traditional display region into the non-display region, utilizing the vertical dimension of the substrate to expand functionality. This dimensional extension allows touch keys to be placed in previously unused areas, improving space utilization without interfering with the display function.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The substrate is divided into display region and non-display region, with the touch device layer selectively positioned in both areas. The non-display region is further segmented into specific touch key areas, allowing independent configuration of touch functions without affecting the display circuit layout.

Inventive Principle:

Principle #1Segmentation

2Ease of manufacture

If the touch device layer is made of the same material throughout, then the manufacturing process is simplified, but the functional differentiation becomes more difficult

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoidfunctional differentiation

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

While the touch device layer uses uniform material composition throughout, different patterns and configurations are applied in different regions. The display region contains touch-sensitive areas for content interaction, while the non-display region contains dedicated touch keys for specific functions, achieving functional differentiation through spatial arrangement rather than material variation.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9069400B2Touch display panel

Publication Date: 2015.06.30 AU OPTRONICS CORP

AI summary

A touch display panel includes a first substrate, a pixel array on the first substrate in a display region, first lead lines located on the first substrate in a non-display region and electrically connected to the pixel array, a second substrate disposed opposite to the first substrate, a display medium layer between the first and second substrates, a touch device layer disposed on the second substrate and having a portion in a first touch region within the display region and the other portion in a second touch region within the non-display region, and second lead lines located on the second substrate and electrically connected to the touch device layer. The material of the touch device layer in the first and second touch regions is the same. The second lead lines extend from the first touch region to an edge of the second substrate through the second touch region.