Organic Light Emitting Display Peripheral Region Transmittance Design

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Solution Overview

Problem

Existing organic light emitting display devices have a visible interface between the display region and the peripheral region, which affects the transmittance and aesthetic appeal.

Innovation Solution

The organic light emitting display device is designed with a first peripheral region surrounding the display region, featuring a plurality of second transmission portions with specific transmittance and arrangement, and a second peripheral region with lower transmittance, along with an encapsulation structure and a black matrix to enhance visibility and transmittance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the peripheral region is designed with conventional structure, then the driving circuit can be properly positioned, but the interface between display region and peripheral region becomes visible and affects aesthetic appeal

Engineering Contradiction:
Improvedriving circuit positioningVSAvoidinterface visibility
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The peripheral region is divided into multiple zones with different transmittance characteristics. Specifically, a first peripheral region adjacent to the display region has a first transmittance, while a second peripheral region further from the display region has a second transmittance that is lower than the first. This local differentiation allows the interface to be visually blended while maintaining proper driving circuit positioning and functionality.

Inventive Principle:
Principle #3Local quality

2Device complexity

If the peripheral region has uniform transmittance with display region, then aesthetic appeal is improved, but the driving circuit functionality may be compromised

Engineering Contradiction:
Improveinterface visibilityVSAvoiddriving circuit functionality
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

Different regions of the peripheral area are assigned different transmittance values to simultaneously achieve visual blending and functional requirements. The first peripheral region maintains higher transmittance to blend with the display region, while the second peripheral region has lower transmittance to accommodate driving circuits and other functional elements.

Inventive Principle:
Principle #3Local quality

3Device complexity

If transmission portions are optimized for transmittance, then aesthetic appeal is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvetransmittance optimizationVSAvoidtransmission portion arrangement
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The peripheral region is segmented into multiple transmission portions with different transmittance characteristics. The first transmission portions in the first peripheral region have a first transmittance, while the second transmission portions in the second peripheral region have a second transmittance. This segmentation allows each portion to be optimized independently for its specific function while maintaining overall aesthetic appeal.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10033017B2Organic light emitting display device and method of manufacturing the same
Publication Date: 2018.07.24 SAMSUNG DISPLAY CO LTD
  • US10033017B2 patent drawing
  • US10033017B2 patent drawing
  • US10033017B2 patent drawing

AI summary

An organic light emitting display device has a display region and a first peripheral region surrounding at least one side of the display region. The organic light emitting display device includes a first substrate a first substrate, a plurality of pixels on the first substrate, the plurality of pixels being included in the display region, at least one of the plurality of pixels including an organic light emitting element, and a driving circuit on the first substrate and in the first peripheral region. At least one of the pixels includes a first transmission portion and at least one light emitting portion, and the first peripheral region includes at least one second transmission portion.