Display Device Circuit Substrate Pin Connection

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Solution Overview

Problem

Conventional display devices with touch sensing capabilities have a significant non-display area due to the need for separate circuit substrates and bezels, which limits the size of the display area and increases the device's overall thickness.

Innovation Solution

A display device design that integrates a display panel with a touch sensing member, where a first circuit substrate covers an opening in the non-display area and is connected to a second circuit substrate through connection pins, eliminating the need for an additional flexible circuit substrate and reducing the non-display area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate circuit substrates and bezels are used for touch sensing capabilities, then the device can achieve touch sensing functionality, but the non-display area increases and the display area is limited

Engineering Contradiction:

Improvetouch sensing functionalityVSAvoidnon-display area

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent combines the display panel and touch sensing member into an integrated display device. The touch sensing member is disposed on the display panel, allowing both display and touch sensing functions to be achieved within the same area without requiring separate circuit substrates and bezels, thereby reducing the non-display area while maintaining full functionality.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If separate circuit substrates are used for display and touch sensing, then the device can achieve required functionality, but the device's overall thickness increases

Engineering Contradiction:

Improvedisplay and touch sensing functionalityVSAvoiddevice thickness

Core Design Contradiction:

Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent merges the display panel and touch sensing member into a single integrated structure where the touch sensing member is disposed on the display panel. This integration eliminates the need for separate circuit substrates stacked in different layers, thereby reducing the overall device thickness while maintaining both display and touch sensing capabilities.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If additional flexible circuit substrate is used to connect circuit substrates, then the device can achieve required connectivity, but the non-display area increases

Engineering Contradiction:

Improvecircuit connectivityVSAvoidnon-display area

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent extracts and eliminates the additional flexible circuit substrate from the device structure. Instead of using a separate flexible circuit substrate to connect the first and second circuit substrates, the invention directly integrates the connection through the pinned connection between circuit substrates, thereby removing the extra component and reducing the non-display area while maintaining reliable circuit connectivity.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS10811482B2Display device including a display module with connecting pins

Publication Date: 2020.10.20 SAMSUNG DISPLAY CO LTD

AI summary

A display device includes a first circuit substrate and an overlapping second circuit. At least one connection pin is disposed in an opening in a base substrate which is disposed between the first circuit substrate and the second circuit substrate and the at least one connection pin is configured to connect the first circuit substrate to the second circuit substrate through the opening in the base substrate.