Electrophoretic Display Peripheral Region Integration

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Solution Overview

Problem

Conventional electrophoretic display apparatuses suffer from low material utilization and increased costs due to wasted material during the cutting process, as protrusion areas and the space between them are not utilized effectively.

Innovation Solution

The electrophoretic display apparatus includes a driving substrate with pixel electrodes, an electrophoretic display panel, and a controller, where a conductive element is positioned in the peripheral region to electrically connect the controller and the electrophoretic display panel, optimizing material use by eliminating unnecessary protrusion areas and the space between them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two protrusion areas are left on the electrophoretic display panel for electrical connection, then the electrical connection between the panel and controller is achieved, but the material utilization ratio decreases and material cost increases

Engineering Contradiction:
Improveelectrical connectionVSAvoidmaterial utilization ratio
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The patent merges the electrical connection function into the peripheral region of the electrophoretic display panel, combining the display function and connection function into a single integrated structure. The peripheral region serves both as part of the display area and as the connection interface with the controller, eliminating the need for separate protrusion areas and thus improving material utilization while maintaining reliable electrical connection.

Inventive Principle:
Principle #5Merging (Combining)

2Volume of moving object

If the electrophoretic display panel size is reduced for smaller e-book devices, then the device portability is improved, but the wasting ratio of the panel material increases

Engineering Contradiction:
Improvedevice sizeVSAvoidmaterial wasting ratio
Core Design Contradiction:
Volume of moving objectVSLoss of substance

Solution Approach 1:

The patent applies local quality by creating a peripheral region with different functional characteristics from the central display region. The peripheral region is designed to serve dual purposes: it is part of the display area for local content display and simultaneously serves as the connection interface. This localized functional differentiation allows efficient use of material even in reduced-size panels, as the peripheral region maximizes utilization while maintaining the necessary connection functionality.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8243361B2Electrophoretic display apparatus and method of manufacturing the same
Publication Date: 2012.08.14 AU OPTRONICS CORP
  • US8243361B2 patent drawing
  • US8243361B2 patent drawing
  • US8243361B2 patent drawing

AI summary

An electrophoretic display apparatus and a method of manufacturing the same are provided. The electrophoretic display apparatus includes a driving substrate, an electrophoretic display panel disposed on the driving substrate, a controller disposed on the driving substrate, and a conductive element. The electrophoretic display panel comprises a peripheral region and a display region, and the display region is positioned between the controller and the peripheral region. The first conductive element is disposed in the peripheral region, and electrically connected the controller and the electrophoretic display panel.