OLED Display Panel with Separate Notification Area Power Control

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Solution Overview

Problem

Current display panels with integrated indicator lights face increased manufacturing complexity and high power consumption due to the presence of additional LED lights outside the display area.

Innovation Solution

Incorporating a first organic light-emitting device in the display area and at least one second organic light-emitting device in the information notification area, with the second device connected to a control circuit receiving a lower power voltage, allowing for a simplified manufacturing process and reduced power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If an LED light is additionally arranged in the region outside the display area for use as an indicator light, then the indicator light function is achieved, but the manufacturing process complexity increases and power consumption increases

Engineering Contradiction:
Improvemanufacturing process complexityVSAvoidpower consumption
Core Design Contradiction:
Ease of manufactureVSUse of energy by moving object

Solution Approach 1:

The patent merges the indicator light function with the organic light-emitting device structure by integrating the second organic light-emitting device into the existing OLED architecture. This eliminates the need for separate LED components and their associated manufacturing processes, while also reducing overall power consumption by utilizing the same low-power organic light-emitting technology for both display and indicator functions

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The organic light-emitting device structure is designed to serve multiple functions: the first organic light-emitting device provides display functionality in the display area, while the second organic light-emitting device provides indicator light functionality in the information notification area. This multi-functional design eliminates the need for separate LED components and reduces manufacturing complexity

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

2Adaptability or versatility

If an LED light is additionally arranged in the region outside the display area for use as an indicator light, then the indicator light function is achieved, but the device complexity increases

Engineering Contradiction:
Improveindicator light functionVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the indicator light function with the existing organic light-emitting device structure by integrating the second organic light-emitting device into the OLED architecture. This merger maintains the indicator light functionality while reducing device complexity by eliminating separate LED components and their associated control circuits

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The organic light-emitting device is designed with universal functionality to serve both display purposes (first organic light-emitting device in display area) and indicator light purposes (second organic light-emitting device in information notification area), thereby achieving adaptability without increasing device complexity

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

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

This configuration enables efficient light emission for image display and notification while minimizing power usage and manufacturing complexity, enriching user experience and meeting diverse needs with reduced overall power consumption.

Implementation Method 1

a first organic light-emitting device arranged in the display area; at least one second organic light-emitting device arranged in the information notification area

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS10692436B2Display panel and display device
Publication Date: 2020.06.23 WUHAN TIANMA MICRO ELECTRONICS CO LTD
  • US10692436B2 patent drawing
  • US10692436B2 patent drawing
  • US10692436B2 patent drawing

AI summary

The present disclosure provides a display panel and a display device. The display panel has a display area and an information notification area. The display panel includes: a first organic light-emitting device arranged in the display area; a pixel driving circuit arranged in the display area, and the pixel driving circuit is configured to receive a first power voltage; and at least one second organic light-emitting device arranged in the information notification area. Each of the at least one second organic light-emitting device is electrically connected to a control circuit, and the control circuit is configured to receive a second power voltage. The second power voltage is less than the first power voltage.