Shared Drive Circuit for Deformable Display Wiring Density

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Solution Overview

Problem

Conventional display devices with multiple display regions require independent drive circuits for each region, leading to increased costs and potential electrical defects due to higher wiring density, especially when the device is deformed.

Innovation Solution

A display device with a shared data line drive circuit and a connection part that includes signal lines electrically connected to both display regions, reducing wiring density in non-display areas and minimizing the risk of electrical defects during deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If independent drive circuits are provided for each display region, then each region can be driven independently, but the wiring density increases and the risk of electrical defects increases during deformation

Engineering Contradiction:
Improveindependent drive capabilityVSAvoidelectrical defect risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent merges the drive circuits for multiple display regions into a single shared drive circuit. The connection part includes a signal line that can be electrically connected to either the first or second display region, allowing one drive circuit to control multiple regions by switching the connection. This reduces the number of drive circuits and wiring density while maintaining independent drive capability through controlled switching.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connection part is designed to be deformable and can dynamically change its electrical connection state. When the display device is deformed, the connection part can switch between connecting to the first display region and connecting to the second display region, or disconnect from both. This dynamic switching capability allows the system to adapt to deformation while maintaining reliable electrical connections.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If independent drive circuits are provided for each display region, then each region can be driven independently, but the production cost increases

Engineering Contradiction:
Improveindependent drive capabilityVSAvoidproduction cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple drive circuits into a single shared drive circuit that can control multiple display regions through a deformable connection part. This consolidation reduces the number of components that need to be manufactured and assembled, thereby lowering production costs while maintaining the capability to independently drive different regions when needed.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The shared drive circuit is designed to be universal, capable of driving either the first or second display region (or both) by switching the connection through the deformable connection part. This multi-functionality eliminates the need for separate dedicated drive circuits for each region, reducing component count and manufacturing complexity.

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

3Adaptability or versatility

If high wiring density is used to provide independent drive circuits for each region, then independent drive capability is achieved, but the risk of electrical defects during deformation increases

Engineering Contradiction:
Improveindependent drive capabilityVSAvoidelectrical defect risk during deformation
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

By merging drive circuits and using a shared deformable connection part, the patent reduces wiring density in the display device. The connection part is specifically designed to handle deformation without causing electrical defects, concentrating the flexibility requirement in a dedicated component rather than distributing it across numerous rigid wiring connections.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connection part is designed as a flexible, deformable structure that can accommodate physical deformation of the display device. This flexible connection part replaces rigid wiring arrangements, allowing the device to be bent or folded without causing electrical defects while maintaining the capability to independently drive different display regions through controlled switching.

Inventive Principle:
Principle #30Flexible shells and thin films

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution allows for lower production costs and reduced risk of electrical defects, while maintaining continuous display across multiple regions by sharing the data line drive circuit and optimizing signal line connections.

Implementation Method 1

a third signal line provided in a first region capable of transforming in response to an external force

Methodology Applied
Scientific EffectExternal force transformation: Deformation

Data Source

PatentUS10997902B2Display device
Publication Date: 2021.05.04 MAGNOLIA WHITE CORP
  • US10997902B2 patent drawing
  • US10997902B2 patent drawing
  • US10997902B2 patent drawing

AI summary

A display device includes M number of first signal lines, a first pixel arranged corresponding to each of the M number of first signal lines, N number of second signal lines, a second pixel arranged corresponding to each of the N number of second signal lines (each of M and N is a natural number of 2 or more), a third signal line provided in a first region capable of transforming in response to an external force, and electrically connected to at least any one of the M number of first signal lines, a first connection control circuit electrically connecting the third signal line to any one of the N number of second signal lines, and a drive circuit supplying a signal to the first signal line for driving the second pixel when the third signal line is electrically connected to any one of the second signal lines.